/* Softwave — styles */
:root {
  --font: 'Manrope', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
  --bg: #f3f5fa;
  --bg-2: #ffffff;
  --card: rgba(255, 255, 255, 0.72);
  --card-solid: #ffffff;
  --border: rgba(20, 30, 60, 0.08);
  --text: #131a2e;
  --muted: #5d6785;
  --accent: #3f6cf0;
  --accent-2: #5fb8c9;
  --accent-soft: rgba(63, 108, 240, 0.12);
  --ring: rgba(63, 108, 240, 0.35);
  --danger: #d9534f;
  --shadow: 0 10px 30px rgba(20, 30, 60, 0.08), 0 1px 2px rgba(20, 30, 60, 0.06);
  --radius: 22px;
  --radius-sm: 14px;
  --player-h: 84px;
  color-scheme: light;
}
:root[data-theme="dark"] {
  --bg: #0b1020;
  --bg-2: #0f1629;
  --card: rgba(22, 30, 52, 0.66);
  --card-solid: #151d33;
  --border: rgba(190, 205, 255, 0.09);
  --text: #e8ecf7;
  --muted: #97a2c4;
  --accent: #7c9cff;
  --accent-2: #6fd1e0;
  --accent-soft: rgba(124, 156, 255, 0.16);
  --ring: rgba(124, 156, 255, 0.4);
  --shadow: 0 10px 30px rgba(0, 0, 0, 0.35), 0 1px 2px rgba(0, 0, 0, 0.3);
  color-scheme: dark;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: var(--font);
  color: var(--text);
  background: var(--bg);
  line-height: 1.5;
  min-height: 100vh;
  padding-bottom: calc(var(--player-h) + env(safe-area-inset-bottom, 0px) + 16px);
  transition: background .4s ease, color .4s ease;
  -webkit-font-smoothing: antialiased;
}
#bg { position: fixed; inset: 0; width: 100%; height: 100%; z-index: 0; pointer-events: none; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
:focus-visible { outline: 3px solid var(--ring); outline-offset: 3px; border-radius: 10px; }
h1, h2, h3 { margin: 0 0 .35em; line-height: 1.15; letter-spacing: -0.015em; }
h1, .h1 { font-size: clamp(2rem, 4.5vw, 3.2rem); font-weight: 800; margin: 0 0 .35em; line-height: 1.15; letter-spacing: -0.015em; }
h2 { font-size: 1.25rem; font-weight: 700; }
p { margin: 0 0 .8em; }
.lead { font-size: clamp(1.05rem, 1.6vw, 1.25rem); color: var(--muted); max-width: 46ch; }
.hint, .note { color: var(--muted); font-size: .95rem; }
.note { border-left: 3px solid var(--accent-2); padding-left: 12px; margin-top: 18px; }
.muted { color: var(--muted); } .small { font-size: .85rem; }

/* ---------- top bar ---------- */
.topbar {
  position: sticky; top: 0; z-index: 20;
  display: flex; align-items: center; gap: 18px;
  padding: 12px clamp(14px, 3vw, 32px);
  padding-top: calc(12px + env(safe-area-inset-top, 0px));
  backdrop-filter: blur(18px) saturate(1.3); -webkit-backdrop-filter: blur(18px) saturate(1.3);
  background: color-mix(in srgb, var(--bg) 70%, transparent);
  border-bottom: 1px solid var(--border);
}
.brand { display: flex; align-items: center; gap: 10px; font-weight: 800; font-size: 1.15rem; color: var(--text); text-decoration: none; }
.logo-mark { display: inline-flex; align-items: flex-end; gap: 4px; height: 34px; }
.logo-mark span { width: 7px; border-radius: 4px; background: linear-gradient(180deg, var(--accent-2), var(--accent)); animation: bar 2.6s ease-in-out infinite; }
.logo-mark span:nth-child(1) { height: 55%; animation-delay: 0s; }
.logo-mark span:nth-child(2) { height: 100%; animation-delay: .35s; }
.logo-mark span:nth-child(3) { height: 70%; animation-delay: .7s; }
.logo-mark.small { height: 22px; } .logo-mark.small span { width: 5px; }
@keyframes bar { 0%, 100% { transform: scaleY(1); } 50% { transform: scaleY(.55); } }
.nav { display: flex; gap: 4px; margin-left: auto; overflow-x: auto; scrollbar-width: none; }
.nav::-webkit-scrollbar { display: none; }
.nav a { padding: 8px 14px; border-radius: 999px; color: var(--muted); text-decoration: none; font-weight: 600; white-space: nowrap; transition: background .2s, color .2s; }
.nav a:hover { color: var(--text); background: var(--accent-soft); }
.nav a.active { color: var(--accent); background: var(--accent-soft); }
.nav a.nav-lab.active { color: #3cb37e; background: rgba(111,211,154,.18); }
:root[data-theme="dark"] .nav a.nav-lab.active { color: #9fe6bd; }
.topbar-actions { display: flex; gap: 8px; align-items: center; }
.icon-btn { width: 42px; height: 42px; border-radius: 50%; border: 1px solid var(--border); background: var(--card); color: var(--text); display: grid; place-items: center; cursor: pointer; }
.icon-btn .moon { display: none; }
:root[data-theme="dark"] .icon-btn .moon { display: block; }
:root[data-theme="dark"] .icon-btn .sun { display: none; }

/* ---------- layout ---------- */
main { position: relative; z-index: 1; max-width: 1180px; margin: 0 auto; padding: clamp(20px, 4vw, 48px) clamp(14px, 3vw, 32px); }
.view[hidden] { display: none; }
.view { animation: fadeUp .45s ease both; }
@keyframes fadeUp { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: none; } }
.hero { text-align: center; margin: 8px auto 34px; display: flex; flex-direction: column; align-items: center; }
.hero.compact { margin-bottom: 26px; }
.row-title { font-size: .85rem; text-transform: uppercase; letter-spacing: .12em; color: var(--muted); margin: 26px 0 12px; font-weight: 700; }
.card {
  background: var(--card); border: 1px solid var(--border); border-radius: var(--radius);
  box-shadow: var(--shadow); padding: clamp(18px, 3vw, 30px);
  backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
}

/* ---------- buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 12px 22px; border-radius: 999px; border: 1px solid transparent;
  font: inherit; font-weight: 700; cursor: pointer; text-decoration: none;
  transition: transform .15s ease, box-shadow .2s ease, background .2s ease; min-height: 44px;
}
.btn:active { transform: scale(.97); }
.btn-primary { background: linear-gradient(135deg, var(--accent), var(--accent-2)); color: #fff; box-shadow: 0 8px 24px var(--ring); }
.btn-primary:hover { box-shadow: 0 10px 30px var(--ring); transform: translateY(-1px); }
.btn-secondary { background: var(--accent-soft); color: var(--accent); }
.btn-ghost { background: transparent; border-color: var(--border); color: var(--text); }
.btn-ghost:hover { background: var(--accent-soft); }
.btn-sm { padding: 8px 14px; min-height: 38px; font-size: .9rem; }
.btn-lg { padding: 14px 28px; font-size: 1.05rem; }
.btn-xl { padding: 18px 40px; font-size: 1.2rem; width: 100%; max-width: 420px; }
.btn-row { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 18px; }

/* ---------- chips / presets ---------- */
.chips { display: flex; flex-wrap: wrap; gap: 10px; }
.chip {
  display: inline-flex; flex-direction: column; align-items: flex-start; gap: 2px;
  padding: 12px 18px; border-radius: 18px; border: 1px solid var(--border); background: var(--card);
  cursor: pointer; font: inherit; color: var(--text); text-align: left; min-height: 44px; text-decoration: none;
  transition: transform .15s, border-color .2s, background .2s; box-shadow: var(--shadow);
}
.chip:hover { transform: translateY(-2px); border-color: var(--accent); }
.chip.active { border-color: var(--accent); background: var(--accent-soft); }
.chip strong { font-weight: 700; }
.chip span { font-size: .82rem; color: var(--muted); }
.chip .del { margin-left: auto; color: var(--muted); font-size: .8rem; }

/* ---------- sound cards ---------- */
.group-title { margin: 30px 0 14px; font-size: 1rem; color: var(--muted); font-weight: 700; text-transform: uppercase; letter-spacing: .12em; }
.sound-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 16px; }
.sound-card {
  position: relative; overflow: hidden; border-radius: var(--radius); border: 1px solid var(--border);
  background: var(--card); box-shadow: var(--shadow); padding: 20px; min-height: 170px;
  display: flex; flex-direction: column; gap: 8px; cursor: pointer; text-align: left; font: inherit; color: var(--text);
  transition: transform .2s ease, border-color .25s ease, box-shadow .25s ease;
  backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
}
.sound-card:hover { transform: translateY(-3px); }
.sound-card.active { border-color: hsl(var(--hue) 80% 60%); box-shadow: 0 14px 36px hsl(var(--hue) 80% 60% / .28); }
.sound-card .art {
  position: absolute; inset: 0; opacity: .45; pointer-events: none;
  background: radial-gradient(120% 80% at 85% 0%, hsl(var(--hue) 85% 70% / .55), transparent 60%),
              radial-gradient(90% 70% at 0% 100%, hsl(calc(var(--hue) + 40) 80% 65% / .35), transparent 60%);
  transition: opacity .3s;
}
.sound-card.active .art { opacity: .85; }
.sound-card .icon { font-size: 1.7rem; width: 48px; height: 48px; display: grid; place-items: center; border-radius: 14px; background: hsl(var(--hue) 80% 60% / .15); color: hsl(var(--hue) 70% 45%); position: relative; }
:root[data-theme="dark"] .sound-card .icon { color: hsl(var(--hue) 80% 75%); }
.sound-card .name { font-weight: 800; font-size: 1.1rem; position: relative; }
.sound-card .desc { color: var(--muted); font-size: .9rem; position: relative; flex: 1; }
.sound-card .waves { position: absolute; left: 0; right: 0; bottom: 0; height: 46px; opacity: 0; transition: opacity .4s; }
.sound-card.active .waves { opacity: 1; }
.sound-card .waves span {
  position: absolute; bottom: -30px; left: -10%; width: 120%; height: 60px; border-radius: 45%;
  background: hsl(var(--hue) 80% 60% / .22); animation: wave 6s linear infinite;
}
.sound-card .waves span:nth-child(2) { animation-duration: 9s; animation-direction: reverse; bottom: -36px; opacity: .7; }
@keyframes wave { from { transform: rotate(0deg); } to { transform: rotate(360deg); } }
.sound-card .state { position: absolute; top: 14px; right: 14px; font-size: .75rem; font-weight: 800; letter-spacing: .1em; text-transform: uppercase; color: hsl(var(--hue) 70% 45%); opacity: 0; transition: opacity .3s; }
:root[data-theme="dark"] .sound-card .state { color: hsl(var(--hue) 80% 75%); }
.sound-card.active .state { opacity: 1; }
.sound-card .vol { position: relative; display: none; align-items: center; gap: 10px; margin-top: 6px; }
.sound-card.active .vol { display: flex; }
.sound-card .vol input { flex: 1; }
.sound-card .vol output { font-size: .8rem; width: 36px; text-align: right; color: var(--muted); }

/* ---------- sliders ---------- */
input[type="range"] {
  -webkit-appearance: none; appearance: none; width: 100%; height: 34px; background: transparent; margin: 0; cursor: pointer;
  --pct: 50%;
}
input[type="range"]::-webkit-slider-runnable-track { height: 8px; border-radius: 999px; background: linear-gradient(90deg, var(--accent) var(--pct), var(--border) var(--pct)); }
input[type="range"]::-moz-range-track { height: 8px; border-radius: 999px; background: var(--border); }
input[type="range"]::-moz-range-progress { height: 8px; border-radius: 999px; background: var(--accent); }
input[type="range"]::-webkit-slider-thumb { -webkit-appearance: none; width: 26px; height: 26px; margin-top: -9px; border-radius: 50%; background: var(--card-solid); border: 2px solid var(--accent); box-shadow: 0 2px 8px rgba(0,0,0,.2); transition: transform .15s; }
input[type="range"]::-moz-range-thumb { width: 24px; height: 24px; border-radius: 50%; background: var(--card-solid); border: 2px solid var(--accent); box-shadow: 0 2px 8px rgba(0,0,0,.2); }
input[type="range"]:active::-webkit-slider-thumb { transform: scale(1.12); }
.control { display: flex; flex-direction: column; gap: 6px; margin: 10px 0; }
.control label { font-weight: 700; font-size: .95rem; display: flex; justify-content: space-between; gap: 8px; }
.control output { color: var(--accent); font-variant-numeric: tabular-nums; }
.scale { display: flex; justify-content: space-between; font-size: .75rem; color: var(--muted); margin-top: -4px; }
.select, .num {
  font: inherit; padding: 11px 14px; border-radius: var(--radius-sm); border: 1px solid var(--border);
  background: var(--card-solid); color: var(--text); min-height: 44px;
}
.num { width: 120px; text-align: center; font-weight: 800; font-size: 1.05rem; font-variant-numeric: tabular-nums; }
.grid-2 { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 8px 28px; margin-top: 8px; }
.play-col { justify-content: flex-end; }
.fine-row { display: flex; flex-wrap: wrap; justify-content: center; align-items: center; gap: 8px; margin: 12px 0 4px; }

/* ---------- frequency ---------- */
.freq-panel { max-width: 860px; margin: 0 auto; }
.freq-readout { text-align: center; font-size: clamp(3rem, 9vw, 5.5rem); font-weight: 800; letter-spacing: -0.03em; font-variant-numeric: tabular-nums; line-height: 1; margin: 6px 0 10px; background: linear-gradient(135deg, var(--accent), var(--accent-2)); -webkit-background-clip: text; background-clip: text; color: transparent; }
.freq-readout .unit { font-size: .35em; margin-left: .25em; font-weight: 700; }
.viz { width: 100%; height: 150px; border-radius: var(--radius-sm); display: block; margin-bottom: 10px; }
.viz.small { height: 90px; }

/* ---------- seg control ---------- */
.seg { display: inline-flex; gap: 6px; padding: 5px; border-radius: 999px; background: var(--accent-soft); margin: 6px 0 18px; max-width: 100%; flex-wrap: wrap; }
.seg.wrap { border-radius: 22px; }
.seg button { font: inherit; font-weight: 700; border: 0; border-radius: 999px; padding: 10px 16px; background: transparent; color: var(--muted); cursor: pointer; min-height: 42px; transition: background .2s, color .2s; }
.seg button[aria-checked="true"] { background: var(--card-solid); color: var(--accent); box-shadow: var(--shadow); }
.bullets { padding-left: 20px; margin: 0 0 14px; } .bullets li { margin-bottom: 8px; }
.match-card { max-width: 780px; margin: 0 auto; }
.suggest-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(180px, 1fr)); gap: 12px; margin: 14px 0; }

/* ---------- mixer ---------- */
.mixer-toolbar { display: flex; flex-wrap: wrap; gap: 10px; justify-content: center; margin-bottom: 22px; }
.channels { display: grid; gap: 14px; }
.channel { display: grid; grid-template-columns: auto 1fr auto; gap: 8px 18px; align-items: center; padding: 16px 20px; border-radius: var(--radius); background: var(--card); border: 1px solid var(--border); box-shadow: var(--shadow); }
.channel .ch-head { display: flex; align-items: center; gap: 12px; min-width: 160px; }
.channel .ch-icon { width: 40px; height: 40px; border-radius: 12px; display: grid; place-items: center; font-size: 1.3rem; background: hsl(var(--hue) 80% 60% / .18); }
.channel .ch-name { font-weight: 800; }
.channel .ch-controls { display: grid; grid-template-columns: 1fr 1fr; gap: 4px 22px; }
.channel .ch-controls .control { margin: 0; }
.channel .ch-actions { display: flex; gap: 8px; align-items: center; }
.switch { display: inline-flex; align-items: center; gap: 12px; cursor: pointer; font-weight: 600; margin: 10px 0 20px; }
.switch input { position: absolute; opacity: 0; width: 1px; height: 1px; }
.switch .track { width: 48px; height: 28px; border-radius: 999px; background: var(--border); position: relative; transition: background .2s; flex-shrink: 0; }
.switch .track::after { content: ""; position: absolute; top: 3px; left: 3px; width: 22px; height: 22px; border-radius: 50%; background: #fff; transition: transform .2s; box-shadow: 0 1px 4px rgba(0,0,0,.3); }
.switch input:checked + .track { background: var(--accent); }
.switch input:checked + .track::after { transform: translateX(20px); }
.switch input:focus-visible + .track { outline: 3px solid var(--ring); outline-offset: 2px; }
.empty { text-align: center; color: var(--muted); padding: 30px; }
.empty[hidden] { display: none; }
.add-row { margin: 16px 0; }

/* ---------- learn ---------- */
.learn-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 18px; }
.disclaimer { border-color: var(--accent-2); }

/* ---------- player ---------- */
.player {
  position: fixed; left: 50%; bottom: calc(12px + env(safe-area-inset-bottom, 0px)); transform: translateX(-50%);
  width: min(1100px, calc(100% - 20px)); min-height: var(--player-h); z-index: 30;
  display: flex; align-items: center; gap: 16px; padding: 12px 18px;
  border-radius: 26px; background: var(--card); border: 1px solid var(--border); box-shadow: var(--shadow);
  backdrop-filter: blur(22px) saturate(1.4); -webkit-backdrop-filter: blur(22px) saturate(1.4);
}
.play-btn { width: 56px; height: 56px; border-radius: 50%; border: 0; background: linear-gradient(135deg, var(--accent), var(--accent-2)); color: #fff; cursor: pointer; display: grid; place-items: center; box-shadow: 0 8px 22px var(--ring); flex-shrink: 0; position: relative; }
.play-btn .ico-pause { display: none; }
.play-btn[aria-pressed="true"] .ico-pause { display: block; }
.play-btn[aria-pressed="true"] .ico-play { display: none; }
.play-btn[aria-pressed="true"]::before { content: ""; position: absolute; inset: -6px; border-radius: 50%; border: 2px solid var(--accent); opacity: .5; animation: pulse 2.4s ease-out infinite; }
@keyframes pulse { 0% { transform: scale(.9); opacity: .6; } 100% { transform: scale(1.5); opacity: 0; } }
.player-info { min-width: 0; flex: 1; }
.player-title { font-weight: 800; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.player-sub { color: var(--muted); font-size: .85rem; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.player-vol { display: flex; align-items: center; gap: 10px; width: 240px; }
.player-vol output { width: 40px; text-align: right; font-size: .85rem; color: var(--muted); font-variant-numeric: tabular-nums; }
.player-vol.warn output { color: var(--danger); font-weight: 700; }
.field-vol.warn output { color: var(--danger); font-weight: 700; }
.player-timer { font-variant-numeric: tabular-nums; font-weight: 700; color: var(--accent); font-size: .9rem; white-space: nowrap; }

/* ---------- sleep screen ---------- */
.sleep-card { max-width: 720px; margin: 0 auto; display: flex; flex-direction: column; gap: 10px; align-items: center; text-align: center; }
.sleep-now .label { font-size: .8rem; text-transform: uppercase; letter-spacing: .12em; color: var(--muted); }
.now-list { font-weight: 700; margin-bottom: 10px; }
.timer-seg { justify-content: center; }
.sleep-screen { position: fixed; inset: 0; z-index: 50; background: #03050c; color: #8d98bf; display: flex; align-items: center; justify-content: center; }
.sleep-screen[hidden] { display: none; }
.sleep-inner { text-align: center; display: flex; flex-direction: column; align-items: center; gap: 18px; padding: 24px; }
.sleep-clock { font-size: clamp(4rem, 18vw, 9rem); font-weight: 300; letter-spacing: -.03em; line-height: 1; color: #b9c3e8; font-variant-numeric: tabular-nums; }
.sleep-remaining { font-size: 1.05rem; }
.sleep-sounds { font-size: .9rem; color: #5f6a90; }
.sleep-controls { display: flex; gap: 22px; align-items: center; margin-top: 10px; }
.round-btn { width: 64px; height: 64px; border-radius: 50%; border: 1px solid #1d2742; background: #0a1020; color: #b9c3e8; font-size: 1.6rem; cursor: pointer; }
.round-btn.big { width: 84px; height: 84px; font-size: 1.4rem; }
.sleep-screen .btn-ghost { color: #5f6a90; border-color: #1d2742; }

/* ---------- welcome ---------- */
.welcome { position: fixed; inset: 0; z-index: 60; display: flex; align-items: center; justify-content: center; padding: 20px; background: color-mix(in srgb, var(--bg) 75%, transparent); backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px); overflow: auto; }
.welcome[hidden] { display: none; }
.welcome-card { width: min(560px, 100%); background: var(--card-solid); border-radius: 30px; padding: clamp(26px, 5vw, 44px); box-shadow: var(--shadow); border: 1px solid var(--border); display: flex; flex-direction: column; align-items: center; text-align: center; animation: fadeUp .6s ease both; }
.welcome-card h1 { font-size: clamp(1.7rem, 4vw, 2.3rem); margin-top: 14px; }
.steps { list-style: none; padding: 0; margin: 18px 0 26px; text-align: left; width: 100%; display: flex; flex-direction: column; gap: 14px; }
.steps li { display: flex; gap: 14px; align-items: flex-start; }
.steps p { margin: 2px 0 0; color: var(--muted); font-size: .95rem; }
.step-num { width: 34px; height: 34px; flex-shrink: 0; border-radius: 50%; display: grid; place-items: center; font-weight: 800; background: var(--accent-soft); color: var(--accent); }
.fineprint { margin-top: 16px; font-size: .8rem; color: var(--muted); }

/* ---------- toast ---------- */
.toast { position: fixed; left: 50%; bottom: calc(var(--player-h) + 30px + env(safe-area-inset-bottom, 0px)); transform: translate(-50%, 20px); background: var(--card-solid); color: var(--text); border: 1px solid var(--border); box-shadow: var(--shadow); padding: 12px 18px; border-radius: 14px; z-index: 40; opacity: 0; pointer-events: none; transition: opacity .3s, transform .3s; max-width: min(480px, calc(100% - 30px)); font-weight: 600; }
.toast.show { opacity: 1; transform: translate(-50%, 0); }

/* ---------- responsive ---------- */
@media (max-width: 900px) {
  .player-vol { width: 170px; }
  .channel { grid-template-columns: 1fr; }
  .channel .ch-actions { justify-content: flex-end; }
}
@media (max-width: 640px) {
  .topbar { flex-wrap: wrap; gap: 10px; }
  .brand span:last-child { display: none; }
  .nav { order: 3; width: 100%; margin-left: 0; }
  .nav a { padding: 8px 12px; font-size: .9rem; }
  .topbar-actions { margin-left: auto; }
  .player { flex-wrap: wrap; gap: 10px 12px; padding: 12px 14px; }
  .player-vol { width: 100%; order: 4; }
  .player-timer { order: 3; }
  .sound-grid { grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); gap: 12px; }
  .sound-card { padding: 16px; min-height: 150px; }
  .channel .ch-controls { grid-template-columns: 1fr; }
  body { padding-bottom: calc(150px + env(safe-area-inset-bottom, 0px)); }
  .toast { bottom: calc(160px + env(safe-area-inset-bottom, 0px)); }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .001s !important; transition-duration: .001s !important; }
}

/* ===================== VISUAL FOCUS ===================== */
.label-sm { font-size: .75rem; text-transform: uppercase; letter-spacing: .12em; color: var(--muted); font-weight: 700; margin-bottom: 4px; }
.setup-value { font-weight: 800; font-size: 1.1rem; margin-bottom: 10px; }
.focus-setup-grid { display: grid; grid-template-columns: 1fr 1fr auto; gap: 22px; align-items: start; }
.setup-cta { display: flex; flex-direction: column; gap: 10px; align-items: stretch; }
.focus-settings { display: flex; flex-wrap: wrap; gap: 12px 30px; align-items: center; margin-top: 18px; padding-top: 18px; border-top: 1px solid var(--border); }
.focus-settings .seg { margin: 4px 0 0; } .focus-settings .switch { margin: 0; }
.inline-form { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 8px; }
.vis-cat-desc { margin: -6px 0 14px; font-size: .95rem; }
.vis-grid, .pair-grid, .fav-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 16px; }
.vis-card, .pair-card, .fav-card { border-radius: var(--radius); border: 1px solid var(--border); background: var(--card); box-shadow: var(--shadow); overflow: hidden; display: flex; flex-direction: column; transition: transform .2s, border-color .25s, box-shadow .25s; }
.vis-card:hover, .pair-card:hover { transform: translateY(-3px); }
.vis-card.active { border-color: var(--accent); box-shadow: 0 14px 36px var(--ring); }
.vis-card canvas, .pair-card canvas { width: 100%; aspect-ratio: 16 / 10; display: block; object-fit: cover; background: var(--bg-2); }
.vis-meta { padding: 14px 16px 6px; flex: 1; }
.vis-name { font-weight: 800; display: flex; align-items: center; gap: 6px; flex-wrap: wrap; }
.vis-desc { color: var(--muted); font-size: .9rem; margin-top: 2px; }
.tag { font-size: .68rem; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; padding: 2px 8px; border-radius: 999px; background: var(--accent-soft); color: var(--accent); }
.vis-actions { display: flex; gap: 8px; padding: 8px 14px 14px; }
.vis-actions .btn { flex: 1; padding: 8px 10px; font-size: .85rem; white-space: nowrap; }
.pair-body { padding: 14px 16px 16px; display: flex; flex-direction: column; gap: 10px; }
.pair-name { font-weight: 800; font-size: 1.1rem; }
.pair-rows { display: flex; flex-direction: column; gap: 4px; font-size: .92rem; }
.pair-rows .lbl { display: inline-block; width: 58px; color: var(--muted); font-size: .75rem; text-transform: uppercase; letter-spacing: .1em; font-weight: 700; }
.fav-card { padding: 16px 18px; gap: 8px; }
.fav-name { font-weight: 800; font-size: 1.05rem; }
.fav-lines { color: var(--muted); font-size: .9rem; display: flex; flex-direction: column; gap: 2px; }
.fav-card .btn-row { margin-top: 6px; }

/* ---- focus screen ---- */
.focus-screen { position: fixed; inset: 0; z-index: 55; background: #05070f; overflow: hidden; touch-action: none; }
.focus-screen[hidden] { display: none; }
#focus-canvas { position: absolute; inset: 0; display: block; }
.focus-ui { position: absolute; left: 0; right: 0; transition: opacity .6s ease, transform .6s ease; z-index: 2; }
.focus-screen.idle .focus-ui { opacity: 0; pointer-events: none; }
.focus-screen.idle { cursor: none; }
.focus-top { top: 0; display: flex; justify-content: space-between; align-items: flex-start; gap: 12px; padding: calc(14px + env(safe-area-inset-top, 0px)) 18px 14px; background: linear-gradient(rgba(0,0,0,.45), transparent); }
.focus-names { display: flex; flex-direction: column; min-width: 0; color: #fff; text-shadow: 0 1px 8px rgba(0,0,0,.5); }
.focus-visual-name { font-weight: 800; font-size: 1.05rem; }
.focus-sound-name { font-size: .85rem; opacity: .8; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; max-width: 60vw; }
.focus-top-actions { display: flex; gap: 8px; flex-shrink: 0; }
.focus-screen .btn-ghost { color: #fff; border-color: rgba(255,255,255,.25); background: rgba(10,14,30,.45); backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px); }
.focus-screen .btn-ghost:hover { background: rgba(255,255,255,.15); }
.focus-bar { bottom: 0; display: flex; align-items: center; gap: 10px; flex-wrap: wrap; justify-content: center; padding: 14px 16px calc(16px + env(safe-area-inset-bottom, 0px)); background: linear-gradient(transparent, rgba(0,0,0,.5)); }
.focus-vol { width: 160px; }
.focus-vol input[type="range"]::-webkit-slider-runnable-track { background: linear-gradient(90deg, #fff var(--pct), rgba(255,255,255,.25) var(--pct)); }
.focus-vol input[type="range"]::-webkit-slider-thumb { background: #fff; border-color: #fff; }
.focus-vol input[type="range"]::-moz-range-thumb { background: #fff; border-color: #fff; }
.focus-panel { position: absolute; left: 50%; bottom: calc(84px + env(safe-area-inset-bottom, 0px)); transform: translateX(-50%); width: min(640px, calc(100% - 24px)); max-height: min(70vh, 560px); overflow: auto; z-index: 3; border-radius: 22px; padding: 14px 18px 18px; color: #e8ecf7; background: rgba(12,16,32,.82); border: 1px solid rgba(255,255,255,.12); backdrop-filter: blur(22px); -webkit-backdrop-filter: blur(22px); box-shadow: 0 20px 60px rgba(0,0,0,.5); animation: fadeUp .3s ease both; }
.focus-panel[hidden] { display: none; }
.focus-panel h2 { font-size: 1rem; margin: 10px 0 8px; }
.focus-panel-head { display: flex; justify-content: flex-end; }
.focus-panel .row-title { color: #97a2c4; margin: 16px 0 8px; }
.focus-panel .chip { background: rgba(255,255,255,.06); border-color: rgba(255,255,255,.12); color: #e8ecf7; box-shadow: none; }
.focus-panel .chip span { color: #97a2c4; }
.focus-panel .seg { background: rgba(255,255,255,.08); }
.focus-panel .seg button { color: #97a2c4; }
.focus-panel .seg button[aria-checked="true"] { background: rgba(255,255,255,.16); color: #fff; box-shadow: none; }
.focus-panel .switch { color: #e8ecf7; margin: 8px 0; }
.focus-panel .switch .track { background: rgba(255,255,255,.2); }
.focus-panel .switch input:checked + .track { background: #7c9cff; }
.pane-sounds, .pane-visuals { display: flex; flex-wrap: wrap; gap: 8px; }
.pane-sound, .pane-visual { font: inherit; font-weight: 600; font-size: .9rem; padding: 9px 14px; border-radius: 999px; border: 1px solid rgba(255,255,255,.15); background: rgba(255,255,255,.05); color: #e8ecf7; cursor: pointer; display: inline-flex; align-items: center; gap: 6px; min-height: 40px; }
.pane-sound.on, .pane-visual.on { background: #7c9cff; border-color: #7c9cff; color: #0b1020; }
.pane-sound .ico { font-size: 1rem; }
@media (max-width: 800px) {
  .focus-setup-grid { grid-template-columns: 1fr 1fr; }
  .setup-cta { grid-column: 1 / -1; flex-direction: row; flex-wrap: wrap; }
}
@media (max-width: 560px) {
  .focus-setup-grid { grid-template-columns: 1fr; }
  .focus-vol { width: 100%; order: -1; }
  .focus-bar { gap: 8px; }
  .focus-bar .btn-sm { padding: 8px 12px; font-size: .85rem; }
  .focus-top-actions .btn-sm { padding: 8px 10px; font-size: .82rem; }
}
@media (orientation: landscape) and (max-height: 500px) {
  .focus-bar { padding-top: 8px; padding-bottom: calc(8px + env(safe-area-inset-bottom, 0px)); }
  .focus-panel { max-height: 80vh; bottom: 70px; }
}


/* ===================== EXPERIMENTS / THE LAB ===================== */
.nav-lab { position: relative; }
.nav-lab::after { content: ""; display: inline-block; width: 6px; height: 6px; border-radius: 50%; background: #6fd39a; margin-left: 6px; vertical-align: middle; }
.lab-view { --lab: #4fb98a; --lab-2: #9fd9b4; }
:root[data-theme="dark"] .lab-view { --lab: #8fe0b4; --lab-2: #c6f0d6; }
.lab-eyebrow { display: inline-block; font-size: .78rem; font-weight: 800; letter-spacing: .16em; text-transform: uppercase; color: var(--lab); border: 1px dashed var(--lab); padding: 5px 12px; border-radius: 999px; margin-bottom: 12px; }
.lab-view h1 { max-width: 22ch; text-wrap: balance; font-size: clamp(1.6rem, 3.4vw, 2.5rem); }
.lab-notice { border-left: 4px solid var(--lab); background: color-mix(in srgb, var(--lab) 10%, var(--card-solid)); border-radius: 0 var(--radius-sm) var(--radius-sm) 0; padding: 14px 18px; margin: 0 auto 26px; max-width: 860px; font-size: .95rem; line-height: 1.55; }
.lab-two { display: grid; grid-template-columns: 1fr 320px; gap: 22px; align-items: start; }
.lab-profile-card h2 { font-size: 1.05rem; }
.lab-profile-card .bullets { padding-left: 18px; }
.lab-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 14px; }
.lab-card { position: relative; border-radius: var(--radius); border: 1px dashed color-mix(in srgb, var(--lab) 55%, var(--border)); background: var(--card); box-shadow: var(--shadow); padding: 18px 18px 16px; display: flex; flex-direction: column; gap: 10px; transition: transform .2s, border-color .25s; }
.lab-card:hover { transform: translateY(-2px); border-style: solid; }
.lab-card.running { border-style: solid; border-color: var(--lab); box-shadow: 0 14px 36px color-mix(in srgb, var(--lab) 30%, transparent); }
.lab-card.running::before { content: "Running"; position: absolute; top: -10px; right: 14px; background: var(--lab); color: #fff; font-size: .7rem; font-weight: 800; letter-spacing: .1em; text-transform: uppercase; padding: 3px 10px; border-radius: 999px; }
.lab-card-head { display: flex; justify-content: space-between; align-items: flex-start; gap: 10px; }
.lab-card h3, .lab-detail h2 { margin: 2px 0 0; font-size: 1.1rem; }
.lab-detail h2 { font-size: 1.5rem; }
.lab-cat { font-size: .72rem; font-weight: 800; letter-spacing: .12em; text-transform: uppercase; color: var(--lab); }
.ev { font-size: .7rem; font-weight: 700; padding: 4px 9px; border-radius: 999px; white-space: nowrap; flex-shrink: 0; border: 1px solid transparent; }
.ev-established { background: rgba(76,175,120,.15); color: #2f8a5a; border-color: rgba(76,175,120,.3); }
.ev-promising { background: rgba(63,108,240,.12); color: var(--accent); }
.ev-exploratory { background: color-mix(in srgb, var(--lab) 16%, transparent); color: var(--lab); }
.ev-limited { background: rgba(194,106,58,.14); color: #c26a3a; }
:root[data-theme="dark"] .ev-established { color: #7ed6a3; } :root[data-theme="dark"] .ev-limited { color: #ffb088; }
.lab-what { margin: 0; font-size: .95rem; }
.lab-card.compact .lab-what { color: var(--muted); font-size: .9rem; }
.lab-dl { display: grid; grid-template-columns: auto 1fr; gap: 6px 14px; margin: 0; font-size: .95rem; }
.lab-dl dt { font-weight: 800; color: var(--muted); font-size: .8rem; text-transform: uppercase; letter-spacing: .08em; padding-top: 3px; }
.lab-dl dd { margin: 0; }
.lab-actions { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; margin-top: auto; }
.tag-new { background: var(--lab); color: #fff; }
.lab-detail { margin: 0 0 26px; border-radius: var(--radius); border: 1px solid var(--lab); background: var(--card); box-shadow: 0 20px 50px color-mix(in srgb, var(--lab) 22%, transparent); padding: clamp(18px, 3vw, 30px); backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px); animation: fadeUp .35s ease both; }
.lab-detail[hidden] { display: none; }
.lab-detail-inner { display: flex; flex-direction: column; gap: 16px; }
.lab-why { border: 1px dashed var(--border); border-radius: var(--radius-sm); padding: 10px 14px; }
.lab-why summary { cursor: pointer; font-weight: 700; color: var(--lab); }
.lab-why p { margin: 10px 0 0; font-size: .95rem; }
.lab-settings { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 8px 24px; }
.lab-setting label { font-weight: 700; font-size: .95rem; display: flex; justify-content: space-between; gap: 8px; margin-bottom: 4px; }
.lab-setting .select { width: 100%; }
.lab-setting .seg { margin: 4px 0 8px; }
.lab-setting output { color: var(--accent); font-variant-numeric: tabular-nums; }
.lab-run { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; padding-top: 10px; border-top: 1px solid var(--border); }
.lab-rate { display: flex; flex-wrap: wrap; align-items: center; gap: 12px; }
.lab-rate .seg { margin: 0; }
.lab-countdown { font-weight: 800; color: var(--lab); font-variant-numeric: tabular-nums; min-height: 1.2em; }
.lab-result { margin-top: 8px; }
.lab-result h3 { font-size: 1.05rem; margin: 8px 0 6px; }
.lab-big { font-size: clamp(2.2rem, 7vw, 4rem); font-weight: 800; text-align: center; color: var(--accent); font-variant-numeric: tabular-nums; line-height: 1.1; margin: 6px 0; }
.lab-saved { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 10px; }
.paint-canvas, .spatial-map { width: 100%; border-radius: var(--radius-sm); display: block; touch-action: none; cursor: crosshair; border: 1px solid var(--border); }
.spatial-map { cursor: grab; }
.ab-switch { display: flex; gap: 14px; justify-content: center; margin: 10px 0; }
.ab-switch .btn-xl { width: 140px; font-size: 1.6rem; }
.tl-bar { display: flex; gap: 4px; height: 28px; margin: 4px 0 14px; }
.tl-seg { background: linear-gradient(135deg, var(--accent), var(--accent-2)); color: #fff; font-size: .75rem; font-weight: 800; display: grid; place-items: center; border-radius: 8px; min-width: 34px; }
.tl-list { display: grid; gap: 12px; }
.tl-row { border: 1px solid var(--border); border-radius: var(--radius-sm); padding: 12px 14px; display: grid; gap: 8px; background: var(--card-solid); }
.tl-head { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.tl-head .select { padding: 6px 10px; min-height: 36px; }
.tl-sound { display: grid; grid-template-columns: minmax(140px, 1fr) 2fr 44px; gap: 10px; align-items: center; }
.tl-sound .select { padding: 6px 10px; min-height: 36px; }
.tl-sound output { font-size: .8rem; color: var(--muted); text-align: right; }
.lab-hist { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 16px; }
.lab-hist h3 { font-size: .85rem; text-transform: uppercase; letter-spacing: .1em; color: var(--muted); margin-bottom: 8px; }
.lab-cat-desc span { display: inline-block; margin-right: 10px; }
.player-exp { font-size: .8rem; font-weight: 700; color: #3a9a68; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; max-width: 180px; }
:root[data-theme="dark"] .player-exp { color: #8fe0b4; }
.eyes-screen { position: fixed; inset: 0; z-index: 58; background: #000; display: flex; align-items: center; justify-content: center; flex-direction: column; gap: 14px; }
.eyes-screen[hidden] { display: none; }
.eyes-controls { display: flex; gap: 12px; opacity: 0; transition: opacity .5s; }
.eyes-hint { color: #2a2f45; font-size: .85rem; opacity: 0; transition: opacity .5s; }
.eyes-screen.show .eyes-controls, .eyes-screen.show .eyes-hint { opacity: 1; }
.eyes-screen .btn-ghost { color: #9aa3c4; border-color: #1d2742; background: #05070f; }
@media (max-width: 900px) { .lab-two { grid-template-columns: 1fr; } }
@media (max-width: 560px) { .lab-dl { grid-template-columns: 1fr; } .lab-dl dt { padding-top: 6px; } .tl-sound { grid-template-columns: 1fr; } .ab-switch .btn-xl { width: 110px; } .player-exp { display: none; } }

/* mixer add pills */
.add-pills .add-pill { background: var(--card); color: var(--text); border: 1px solid var(--border); box-shadow: var(--shadow); transition: transform .15s, border-color .2s, opacity .2s; }
.add-pills .add-pill:hover:not(:disabled) { transform: translateY(-2px); border-color: hsl(var(--hue) 80% 60%); }
.add-pills .add-pill .ico { color: hsl(var(--hue) 70% 45%); }
:root[data-theme="dark"] .add-pills .add-pill .ico { color: hsl(var(--hue) 80% 75%); }
.add-pills .add-pill:disabled { opacity: .45; cursor: default; }
.add-pills .add-pill.adding { opacity: .6; border-color: var(--accent); }

/* SEO / static-page hooks inside the app */
.skip-link { position: absolute; left: -999px; top: 8px; background: var(--accent); color: #fff; padding: 10px 14px; border-radius: 10px; z-index: 100; text-decoration: none; font-weight: 700; }
.skip-link:focus { left: 8px; }
.group-learn { margin: -8px 0 12px; }
.group-learn a { color: var(--accent); text-decoration: none; font-weight: 600; }
.group-learn a:hover { text-decoration: underline; }
.about-tool { margin: 48px auto 10px; max-width: 960px; padding: clamp(18px, 3vw, 28px); border-radius: var(--radius); border: 1px solid var(--border); background: var(--card); box-shadow: var(--shadow); backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px); }
.about-tool h2 { font-size: 1.25rem; text-wrap: balance; }
.about-tool h3 { font-size: .95rem; margin-bottom: 4px; }
.about-tool p { color: var(--muted); font-size: .95rem; }
.about-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 18px; margin: 14px 0; }
.about-tool a { color: var(--accent); }
.sound-card.highlight { border-color: var(--accent); box-shadow: 0 0 0 4px var(--ring), var(--shadow); }

/* Experiments: green wording */
.lab-view h1, .lab-view .h1, .lab-card h3, .lab-detail h2, .lab-detail h3, .lab-view .row-title, .lab-hist h3, .lab-profile-card h2, .lab-why summary, .lab-result h3 { color: var(--lab); }
.lab-view .lab-notice strong, .lab-view .lab-notice em { color: var(--lab); }
.lab-card .lab-what { color: var(--text); }

/* Experiments tab: always green, even when not selected */
.nav a.nav-lab { color: #3cb37e; font-weight: 700; }
.nav a.nav-lab:hover { color: #3cb37e; background: rgba(111,211,154,.14); }
:root[data-theme="dark"] .nav a.nav-lab { color: #8fe0b4; }
:root[data-theme="dark"] .nav a.nav-lab:hover { color: #9fe6bd; }

/* ===== personal sound discovery upgrade ===== */
.discover-cta { display: flex; flex-direction: column; align-items: center; gap: 8px; margin-top: 18px; }
.discover-cta p { max-width: 46ch; text-align: center; margin: 0; }
.chip-mine { position: relative; padding-right: 40px; }
.chip-del { position: absolute; top: 6px; right: 8px; width: 26px; height: 26px; border-radius: 50%; border: 0; background: transparent; color: var(--muted); font-size: 1rem; cursor: pointer; }
.chip-del:hover { background: var(--accent-soft); color: var(--accent); }
.lab-view .hero .btn-xl { max-width: 360px; margin-top: 8px; }
.lab-group { margin: 22px 0 8px; }
.lab-group-title { font-size: .85rem; text-transform: uppercase; letter-spacing: .14em; color: var(--lab); margin: 0 0 2px; }
.lab-group .lab-grid { margin-top: 10px; }
.lab-card.featured { border-style: solid; border-color: var(--lab); background: color-mix(in srgb, var(--lab) 8%, var(--card)); }
.tag-prem { background: color-mix(in srgb, var(--lab) 18%, transparent); color: var(--lab); }
.lab-profile-card { margin: 0 0 10px; }
.premium-note { margin-top: 28px; }
.premium-note h2 { font-size: 1.05rem; }
.disc-progress { display: flex; align-items: center; gap: 6px; flex-wrap: wrap; justify-content: center; margin: 4px 0 12px; }
.disc-progress span { width: 10px; height: 10px; border-radius: 50%; background: var(--border); }
.disc-progress span.done { background: var(--lab); }
.disc-progress span.now { background: var(--accent); box-shadow: 0 0 0 4px var(--ring); }
.disc-progress em { font-style: normal; font-weight: 700; color: var(--muted); margin-left: 8px; font-size: .85rem; }
.disc-result h3 { font-size: 1.25rem; text-transform: capitalize; }
.kbd-alt { margin-top: 10px; }
.kbd-alt summary { cursor: pointer; }
.kbd-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(120px, 1fr)); gap: 6px 14px; margin-top: 8px; }
.kbd-grid label { font-size: .75rem; color: var(--muted); display: flex; flex-direction: column; }
.focus-veil { position: absolute; inset: 0; background: #000; opacity: 0; pointer-events: none; transition: opacity 1.5s ease; z-index: 1; }
.focus-veil.on { opacity: 1; }
@media (max-width: 560px) { .ab-switch .btn-xl { width: 44%; min-width: 120px; } .lab-run .btn-lg { width: 100%; } }
@media (pointer: coarse) { input[type="range"] { height: 44px; } input[type="range"]::-webkit-slider-thumb { width: 30px; height: 30px; margin-top: -11px; } }

/* ===== refinement pass ===== */
.brand-eyebrow { font-size: .78rem; font-weight: 800; letter-spacing: .16em; text-transform: uppercase; color: var(--accent); margin: 0 0 8px; }
.hero .lead { font-weight: 600; color: var(--text); }
.two-tools { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 10px; margin-top: 16px; max-width: 680px; width: 100%; }
.two-tool { display: flex; flex-direction: column; gap: 3px; text-align: left; padding: 12px 16px; border-radius: 16px; border: 1px solid var(--border); background: var(--card); color: var(--text); text-decoration: none; font: inherit; cursor: pointer; box-shadow: var(--shadow); transition: transform .15s, border-color .2s; }
.two-tool:hover { transform: translateY(-2px); border-color: var(--accent); }
.two-tool strong { font-weight: 800; }
.two-tool span { font-size: .85rem; color: var(--muted); }
.about-details summary { list-style: none; cursor: pointer; }
.about-details summary::-webkit-details-marker { display: none; }
.about-details summary h2 { display: inline; }
.about-details summary::after { content: "▾"; margin-left: 8px; color: var(--muted); }
.about-details[open] summary::after { content: "▴"; }
.profile-suggest { display: flex; flex-wrap: wrap; align-items: center; gap: 8px 12px; margin: 4px 0 8px; }
.linklike { background: none; border: 0; padding: 0; font: inherit; color: var(--accent); text-decoration: underline; cursor: pointer; }
.lab-reco { display: inline-block; font-size: .7rem; font-weight: 800; letter-spacing: .12em; text-transform: uppercase; color: #fff; background: var(--lab); padding: 4px 10px; border-radius: 999px; margin-bottom: 8px; }
.lab-card.featured { grid-column: 1 / -1; }
.lab-card.featured .lab-what { font-size: 1.02rem; }
.lab-card.featured h3 { font-size: 1.35rem; }
@media (max-width: 640px) { .hero .lead { font-size: 1.1rem; } }

/* =====================================================================
   PREMIUM VISUAL LAYER — palettes, open layouts, sound personalities
   ===================================================================== */
:root { --bg: #f0eee7; --bg-2: #f7f5ef; --card: rgba(255, 255, 255, 0.62); --card-solid: #ffffff; --border: rgba(20, 30, 60, 0.06); --text: #151a2b; --muted: #59627c; --accent: #3f63e0; --accent-2: #5fb4c9; --accent-soft: rgba(63, 99, 224, 0.10); --ring: rgba(63, 99, 224, 0.28); --shadow: 0 14px 40px rgba(30, 40, 80, 0.08), 0 1px 2px rgba(30, 40, 80, 0.04); --radius: 26px; }
:root[data-theme="dark"] { --bg: #0b0f1d; --bg-2: #0e1424; --card: rgba(20, 27, 48, 0.55); --card-solid: #131a2f; --border: rgba(180, 200, 255, 0.07); --text: #e7ebf6; --muted: #a7b1ce; --accent: #8aa6ff; --accent-2: #74d2e2; --accent-soft: rgba(138, 166, 255, 0.14); --ring: rgba(138, 166, 255, 0.32); --shadow: 0 18px 50px rgba(0, 0, 0, 0.45), 0 1px 2px rgba(0, 0, 0, 0.3); }
body { background: var(--bg); }
:root[data-theme="dark"] body { background: radial-gradient(120% 70% at 20% -10%, #141d3d 0%, #0b0f1d 55%) fixed, #0b0f1d; }

/* open layouts: surfaces without hard borders */
.card, .sound-card, .chip, .vis-card, .pair-card, .fav-card, .channel, .lab-card, .player, .two-tool, .about-tool, .lab-detail, .lab-notice { border-color: transparent; }
.chip, .two-tool { box-shadow: 0 6px 20px rgba(30, 40, 80, 0.06); }
:root[data-theme="dark"] .chip, :root[data-theme="dark"] .two-tool { box-shadow: 0 6px 20px rgba(0, 0, 0, 0.3); }
/* dark mode: option cards keep a subtle, always-visible frame; hover/focus brightens it to the
   accent; selected adds the accent ring — three clearly distinct states without heavy lines */
:root[data-theme="dark"] .chip, :root[data-theme="dark"] .two-tool, :root[data-theme="dark"] .vis-card,
:root[data-theme="dark"] .pair-card, :root[data-theme="dark"] .fav-card, :root[data-theme="dark"] .lab-card,
:root[data-theme="dark"] .channel, :root[data-theme="dark"] .about-tool { border-color: rgba(180, 200, 255, 0.30); }
:root[data-theme="dark"] .chip:hover, :root[data-theme="dark"] .chip:focus-visible,
:root[data-theme="dark"] .two-tool:hover, :root[data-theme="dark"] .two-tool:focus-visible,
:root[data-theme="dark"] .vis-card:hover, :root[data-theme="dark"] .vis-card:focus-visible,
:root[data-theme="dark"] .pair-card:hover, :root[data-theme="dark"] .fav-card:hover,
:root[data-theme="dark"] .lab-card:hover, :root[data-theme="dark"] .about-tool:hover { border-color: var(--accent); }
:root[data-theme="dark"] .chip.active, :root[data-theme="dark"] .vis-card.active { border-color: var(--accent); box-shadow: 0 0 0 1px var(--accent), 0 14px 36px var(--ring); }
/* sound tiles: same three states, drawn as a ring so nothing shifts */
:root[data-theme="dark"] .tile-preview { box-shadow: 0 0 0 1px rgba(180, 200, 255, 0.30); }
:root[data-theme="dark"] .sound-card:hover .tile-preview, :root[data-theme="dark"] .sound-card .card-btn:focus-visible .tile-preview { box-shadow: 0 0 0 1px var(--accent); }
:root[data-theme="dark"] .sound-card.active .tile-preview { box-shadow: 0 0 0 1px var(--sf-accent), 0 16px 40px rgba(0, 0, 0, 0.3); }
/* Experiments: same visibility standard; hover uses the lab's green; running state keeps its own accent */
:root[data-theme="dark"] .lab-tile:not(.running), :root[data-theme="dark"] .lab-flagship, :root[data-theme="dark"] #view-lab .card { border-color: rgba(180, 200, 255, 0.30); }
:root[data-theme="dark"] .lab-tile:hover:not(.running) { border-color: var(--lab); }
.topbar { background: color-mix(in srgb, var(--bg) 62%, transparent); border-bottom-color: transparent; }
.group-title { letter-spacing: .18em; font-size: .78rem; }
.row-title { letter-spacing: .18em; }

/* hero — typographic, emotional */
.hero { margin: 26px auto 40px; }
.hero h1, .hero .h1 { font-size: clamp(2.6rem, 6vw, 4.4rem); font-weight: 700; letter-spacing: -0.03em; line-height: 1.02; }
.brand-eyebrow { letter-spacing: .22em; color: var(--muted); }
.hero .lead { font-size: clamp(1.15rem, 2vw, 1.45rem); font-weight: 500; color: var(--text); max-width: 34ch; }
.hero .hint { max-width: 56ch; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 10px; justify-content: center; margin-top: 20px; }
.discover-cta { margin-top: 6px; }
.btn-primary { background: linear-gradient(135deg, var(--accent), var(--accent-2)); box-shadow: 0 10px 30px var(--ring); }
.btn-hero { padding: 16px 34px; font-size: 1.05rem; }
.btn-hero.btn-ghost { background: var(--card); }

/* sound cards: personalities (subtle) */
.sound-card { background: var(--card); box-shadow: var(--shadow); min-height: 178px; }
.sound-card .art { opacity: .55; }
.sound-card::after { content: ""; position: absolute; inset: 0; pointer-events: none; opacity: .35; transition: opacity .4s; }
.sound-card.active::after { opacity: .7; }
.sound-card[data-id="white"]::after { background-image: radial-gradient(circle at 20% 30%, rgba(255,255,255,.8) 0 1px, transparent 1.5px), radial-gradient(circle at 70% 60%, rgba(255,255,255,.7) 0 1px, transparent 1.5px), radial-gradient(circle at 45% 80%, rgba(255,255,255,.6) 0 1px, transparent 1.5px); background-size: 26px 26px, 34px 34px, 40px 40px; animation: drift-up 22s linear infinite; }
.sound-card[data-id="pink"]::after { background: repeating-linear-gradient(100deg, transparent 0 18px, rgba(255,255,255,.22) 18px 22px); animation: ribbon 16s linear infinite; }
.sound-card[data-id="brown"]::after { background: radial-gradient(120% 60% at 50% 120%, rgba(255,255,255,.35), transparent 60%); animation: swell 9s ease-in-out infinite; }
.sound-card[data-id="rain"]::after, .sound-card[data-id="waterfall"]::after { background: repeating-linear-gradient(180deg, transparent 0 14px, rgba(255,255,255,.28) 14px 17px); background-size: 100% 60px; animation: fall 4s linear infinite; opacity: .18; }
.sound-card[data-id="ocean"]::after, .sound-card[data-id="stream"]::after { background: repeating-linear-gradient(90deg, transparent 0 30px, rgba(255,255,255,.25) 30px 40px); animation: flow 14s linear infinite; opacity: .18; }
.sound-card[data-id="fire"]::after { background: radial-gradient(60% 50% at 50% 110%, rgba(255,170,90,.55), transparent 70%); animation: flicker 5s ease-in-out infinite; }
.sound-card[data-id="forest"]::after, .sound-card[data-id="night"]::after { background-image: radial-gradient(circle, rgba(255,255,255,.7) 0 1.2px, transparent 2px); background-size: 48px 48px; animation: drift-side 30s linear infinite; opacity: .25; }
.sound-card[data-id="wind"]::after { background: linear-gradient(100deg, transparent 40%, rgba(255,255,255,.25) 50%, transparent 60%); background-size: 200% 100%; animation: gust 7s ease-in-out infinite; }
@keyframes drift-up { to { background-position: 0 -260px, 0 -340px, 0 -400px; } }
@keyframes ribbon { to { background-position: 400px 0; } }
@keyframes swell { 0%, 100% { transform: scaleY(1); opacity: .3; } 50% { transform: scaleY(1.15); opacity: .55; } }
@keyframes fall { to { background-position: 0 60px; } }
@keyframes flow { to { background-position: 400px 0; } }
@keyframes flicker { 0%, 100% { opacity: .3; } 50% { opacity: .55; } }
@keyframes drift-side { to { background-position: 480px 0; } }
@keyframes gust { 0%, 100% { background-position: 0 0; } 50% { background-position: 100% 0; } }
.sound-card .icon { background: hsl(var(--hue) 80% 60% / .12); }

/* player: orb + open now-playing panel */
.player { border-radius: 30px; padding: 12px 20px; }
.play-btn { position: relative; overflow: hidden; background: transparent; box-shadow: none; width: 60px; height: 60px; }
.play-btn canvas { position: absolute; inset: 0; width: 100%; height: 100%; }
.play-btn svg { position: relative; z-index: 1; color: #fff; filter: drop-shadow(0 1px 3px rgba(0,0,0,.4)); }
.play-btn::after { content: ""; position: absolute; inset: 14px; border-radius: 50%; background: linear-gradient(135deg, var(--accent), var(--accent-2)); z-index: 0; transition: transform .35s cubic-bezier(.2,.8,.2,1); }
.play-btn[aria-pressed="true"]::after { transform: scale(1.08); }
.play-btn.pressed::after { transform: scale(1.25); }
.play-btn[aria-pressed="true"]::before { display: none; }
.player-title { cursor: pointer; }
.player-title:hover { color: var(--accent); }
.player-open { border: 0; background: transparent; color: var(--muted); font: inherit; font-size: .8rem; cursor: pointer; padding: 4px 8px; border-radius: 999px; }
.player-open:hover { color: var(--accent); background: var(--accent-soft); }
.now { position: fixed; inset: 0; z-index: 52; display: flex; align-items: center; justify-content: center; background: color-mix(in srgb, var(--bg) 82%, transparent); backdrop-filter: blur(26px) saturate(1.2); -webkit-backdrop-filter: blur(26px) saturate(1.2); animation: fadeUp .35s ease both; }
.now[hidden] { display: none; }
.now-inner { display: flex; flex-direction: column; align-items: center; gap: 8px; text-align: center; padding: 24px; width: min(560px, 100%); }
.now-orb { width: min(62vw, 320px); aspect-ratio: 1; position: relative; cursor: pointer; border: 0; background: transparent; padding: 0; border-radius: 50%; }
.now-orb canvas { position: absolute; inset: 0; width: 100%; height: 100%; }
.now-orb .core { position: absolute; left: 50%; top: 50%; width: 72px; height: 72px; margin: -36px 0 0 -36px; border-radius: 50%; background: linear-gradient(135deg, var(--accent), var(--accent-2)); color: #fff; display: grid; place-items: center; box-shadow: 0 10px 30px var(--ring); transition: transform .35s cubic-bezier(.2,.8,.2,1); }
.now-orb.pressed .core { transform: scale(1.15); }
.now-orb .core .ico-pause { display: none; } .now-orb[aria-pressed="true"] .core .ico-pause { display: block; } .now-orb[aria-pressed="true"] .core .ico-play { display: none; }
.now-name { font-size: clamp(1.5rem, 4vw, 2.1rem); font-weight: 600; letter-spacing: -0.02em; margin-top: 6px; }
.now-desc { font-size: .8rem; letter-spacing: .16em; text-transform: uppercase; color: var(--muted); }
.now-vol { display: flex; align-items: center; gap: 12px; width: min(360px, 90%); margin-top: 10px; }
.now-vol output { width: 40px; text-align: right; font-size: .85rem; color: var(--muted); font-variant-numeric: tabular-nums; }
.now-actions { display: flex; gap: 6px; flex-wrap: wrap; justify-content: center; margin-top: 12px; }
.now-actions .btn { background: transparent; border-color: transparent; color: var(--muted); }
.now-actions .btn:hover { color: var(--text); background: var(--accent-soft); }
.now-close { position: absolute; top: calc(16px + env(safe-area-inset-top, 0px)); right: 16px; }
.btn.saved-pop { animation: savepop .5s ease; }
@keyframes savepop { 0% { transform: scale(1); } 40% { transform: scale(.92); } 100% { transform: scale(1); } }

/* The Lab — studio skin */
.lab-view { position: relative; border-radius: 30px; padding: 20px clamp(8px, 2vw, 24px) 30px; background-color: color-mix(in srgb, #0c1222 85%, var(--bg)); background-image: linear-gradient(rgba(140,170,255,.045) 1px, transparent 1px), linear-gradient(90deg, rgba(140,170,255,.045) 1px, transparent 1px); background-size: 32px 32px; }
:root:not([data-theme="dark"]) .lab-view { background-color: color-mix(in srgb, #1b2440 12%, var(--bg)); background-image: linear-gradient(rgba(40,60,120,.05) 1px, transparent 1px), linear-gradient(90deg, rgba(40,60,120,.05) 1px, transparent 1px); }
.lab-view .hero .h1 { font-size: clamp(2rem, 4.6vw, 3.2rem); }
.lab-card { background: color-mix(in srgb, var(--card-solid) 70%, transparent); backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px); border: 1px solid rgba(140,170,255,.10); }
.lab-card.featured { display: grid; grid-template-columns: auto 1fr; gap: 6px 26px; align-items: center; padding: 22px 26px; background: linear-gradient(135deg, color-mix(in srgb, var(--lab) 14%, var(--card-solid)), color-mix(in srgb, var(--card-solid) 80%, transparent)); border-color: color-mix(in srgb, var(--lab) 45%, transparent); }
.lab-card.featured .lab-orb { width: 150px; height: 150px; position: relative; grid-row: 1 / span 4; }
.lab-card.featured .lab-orb canvas { position: absolute; inset: 0; width: 100%; height: 100%; }
.lab-card.featured .lab-reco, .lab-card.featured .lab-card-head, .lab-card.featured .lab-what, .lab-card.featured .lab-actions { grid-column: 2; }
.lab-detail { background: color-mix(in srgb, var(--card-solid) 78%, transparent); backdrop-filter: blur(18px); -webkit-backdrop-filter: blur(18px); border: 1px solid rgba(140,170,255,.14); }
.lab-profile-card { display: grid; grid-template-columns: 170px 1fr; gap: 6px 18px; align-items: center; }
.lab-profile-card h2 { grid-column: 1 / -1; }
.profile-fp { width: 170px; height: 170px; position: relative; }
.profile-fp canvas { position: absolute; inset: 0; width: 100%; height: 100%; }
@media (max-width: 700px) { .lab-profile-card { grid-template-columns: 1fr; justify-items: center; text-align: center; } .lab-card.featured { grid-template-columns: 1fr; justify-items: center; text-align: center; } .lab-card.featured .lab-orb { grid-row: auto; } .lab-card.featured .lab-reco, .lab-card.featured .lab-card-head, .lab-card.featured .lab-what, .lab-card.featured .lab-actions { grid-column: 1; } }

/* discovery sound objects */
.ab-switch { gap: 28px; }
.ab-obj { width: clamp(120px, 30vw, 180px); aspect-ratio: 1; position: relative; border-radius: 50%; border: 2px solid transparent; background: transparent; padding: 0; cursor: pointer; transition: transform .35s cubic-bezier(.2,.8,.2,1), border-color .3s, box-shadow .3s; }
.ab-obj canvas { position: absolute; inset: 0; width: 100%; height: 100%; border-radius: 50%; }
.ab-obj .lbl { position: absolute; left: 50%; top: 50%; transform: translate(-50%, -50%); width: 52px; height: 52px; border-radius: 50%; display: grid; place-items: center; font-weight: 800; font-size: 1.3rem; background: var(--card-solid); color: var(--text); box-shadow: var(--shadow); }
.ab-obj[aria-pressed="true"] { transform: scale(1.06); border-color: var(--accent); box-shadow: 0 0 0 8px var(--ring); }
.ab-obj[aria-pressed="true"] .lbl { background: linear-gradient(135deg, var(--accent), var(--accent-2)); color: #fff; }
.ab-obj:disabled { opacity: .5; cursor: default; }
.disc-reveal { display: flex; flex-direction: column; align-items: center; text-align: center; gap: 6px; }
.disc-reveal .reveal-orb { width: min(60vw, 260px); aspect-ratio: 1; position: relative; animation: reveal 1.6s cubic-bezier(.2,.8,.2,1) both; }
.disc-reveal .reveal-orb canvas { position: absolute; inset: 0; width: 100%; height: 100%; }
@keyframes reveal { from { transform: scale(.4); opacity: 0; filter: blur(8px); } to { transform: scale(1); opacity: 1; filter: blur(0); } }
.disc-reveal h3 { font-size: clamp(1.4rem, 3vw, 1.9rem); font-weight: 600; letter-spacing: -0.02em; text-transform: none; margin: 4px 0 0; }
.desc-chips { display: flex; gap: 6px; flex-wrap: wrap; justify-content: center; }
.desc-chips span { font-size: .72rem; letter-spacing: .12em; text-transform: uppercase; font-weight: 700; color: var(--muted); padding: 5px 10px; border-radius: 999px; background: var(--accent-soft); }

/* sculptor: tactile, labelled ends + live shape */
.sculpt-shape { width: min(60vw, 220px); aspect-ratio: 1; position: relative; margin: 0 auto 6px; }
.sculpt-shape canvas { position: absolute; inset: 0; width: 100%; height: 100%; }
.lab-setting.ends label { justify-content: space-between; font-size: .78rem; letter-spacing: .12em; text-transform: uppercase; color: var(--muted); }
.lab-setting.ends label output { display: none; }
.lab-setting.ends input[type="range"] { height: 44px; }

/* painting: landscape */
.paint-canvas { aspect-ratio: 3 / 1; height: auto; max-height: 320px; border-color: transparent; }

/* reduced motion: stop ambient card textures */
@media (prefers-reduced-motion: reduce) { .sound-card::after { animation: none !important; } }

.lab-card.featured .lab-reco { justify-self: start; }
.lab-card.featured .ev { align-self: start; }

/* =====================================================================
   SOUND FIELD — the active sound as the page's centrepiece
   ===================================================================== */
.hero-compact { margin: 10px auto 10px; }
.hero-compact h1 { font-size: clamp(2rem, 4.2vw, 3rem); }
.hero-compact .lead { font-size: clamp(1rem, 1.6vw, 1.2rem); font-weight: 500; color: var(--muted); }
.field-wrap { display: flex; flex-direction: column; align-items: center; text-align: center; margin: 4px auto 38px; }
.field { position: relative; width: min(88vw, 560px); aspect-ratio: 1; border-radius: 50%; }
.field canvas { position: absolute; inset: 0; width: 100%; height: 100%; border-radius: 50%; }
.field-core { position: absolute; left: 50%; top: 50%; width: 96px; height: 96px; margin: -48px 0 0 -48px; border-radius: 50%; border: 0; cursor: pointer; display: grid; place-items: center; color: #fff; background: linear-gradient(135deg, var(--accent), var(--accent-2)); box-shadow: 0 14px 40px var(--ring); transition: transform .4s cubic-bezier(.2,.8,.2,1), box-shadow .4s; font: inherit; }
.field-core:hover { transform: scale(1.04); }
.field-core.pressed { transform: scale(1.14); }
.field-core.idle { width: 132px; height: 132px; margin: -66px 0 0 -66px; background: var(--card-solid); color: var(--text); box-shadow: var(--shadow); font-weight: 700; font-size: 1rem; line-height: 1.2; }
.field-core .field-idle { display: none; } .field-core.idle .field-idle { display: block; }
.field-core .ico-play, .field-core .ico-pause { display: none; } .field-core:not(.idle)[aria-pressed="false"] .ico-play { display: block; } .field-core:not(.idle)[aria-pressed="true"] .ico-pause { display: block; }
.field[data-state="playing"] .field-core { box-shadow: 0 0 0 10px var(--ring), 0 14px 40px var(--ring); }
.field-name { font-size: clamp(1.8rem, 4.5vw, 2.6rem); font-weight: 600; letter-spacing: -0.025em; margin-top: 14px; line-height: 1.1; }
.field-desc { font-size: .8rem; letter-spacing: .16em; text-transform: uppercase; color: var(--muted); margin-top: 6px; font-weight: 600; }
.field-desc .linklike { text-transform: none; letter-spacing: 0; font-weight: 700; font-size: .9rem; }
.field-controls { display: flex; flex-direction: column; align-items: center; gap: 10px; margin-top: 16px; width: 100%; }
.field-controls[hidden] { display: none; }
.field-vol { display: flex; align-items: center; gap: 12px; width: min(380px, 86%); }
.field-vol output { width: 40px; text-align: right; font-size: .85rem; color: var(--muted); font-variant-numeric: tabular-nums; }
.field-actions { display: flex; flex-wrap: wrap; justify-content: center; gap: 4px 6px; }
.fa { border: 0; background: transparent; color: var(--muted); font: inherit; font-weight: 700; font-size: .9rem; padding: 10px 14px; border-radius: 999px; cursor: pointer; display: inline-flex; align-items: center; gap: 7px; min-height: 42px; transition: background .2s, color .2s; }
.fa:hover { color: var(--text); background: var(--accent-soft); }
.fa .fa-ico { font-size: 1rem; opacity: .8; }
.fa-immerse { color: var(--accent); }
.two-tools-low { margin: 30px auto 0; }
.presets-row { text-align: left; }

/* tiles — visual sound selection, no boxes */
.sound-grid { grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 10px 8px; }
.sound-card { background: transparent; box-shadow: none; border: 0; border-radius: 22px; padding: 14px 10px 12px; min-height: 0; align-items: center; text-align: center; transition: background .3s, transform .25s; }
.sound-card::after, .sound-card .art, .sound-card .waves, .sound-card .state { display: none !important; }
.sound-card:hover { background: var(--accent-soft); transform: none; }
.sound-card.active { background: var(--accent-soft); box-shadow: inset 0 0 0 2px var(--ring); }
.sound-card .card-btn { all: unset; display: flex; flex-direction: column; align-items: center; gap: 6px; cursor: pointer; width: 100%; }
.sound-card .card-btn:focus-visible { outline: 3px solid var(--ring); outline-offset: 4px; border-radius: 16px; }
.tile-preview { display: block; width: 92px; height: 92px; border-radius: 50%; overflow: hidden; position: relative; background: radial-gradient(circle, hsl(var(--hue) 70% 60% / .12), transparent 70%); transition: transform .35s cubic-bezier(.2,.8,.2,1); }
.tile-preview canvas { position: absolute; inset: 0; width: 100%; height: 100%; }
.sound-card:hover .tile-preview, .sound-card.active .tile-preview { transform: scale(1.1); }
.sound-card .name { font-weight: 700; font-size: 1rem; letter-spacing: -0.01em; }
.sound-card .desc { font-size: .68rem; letter-spacing: .12em; text-transform: uppercase; color: var(--muted); font-weight: 600; }
.sound-card .vol { width: 100%; margin-top: 2px; }
.group-title { margin: 34px 0 6px; text-align: left; }
.group-learn { margin: 0 0 8px; }

/* atmosphere: restrained environment shifts */
#atmo { position: fixed; inset: 0; z-index: 0; pointer-events: none; opacity: 0; transition: opacity 2.5s ease, background 2.5s ease; }
body[data-atmo="warm"] #atmo { opacity: 1; background: radial-gradient(90% 60% at 50% 60%, rgba(255, 150, 80, .10), transparent 70%); }
body[data-atmo="cool"] #atmo { opacity: 1; background: radial-gradient(90% 60% at 50% 55%, rgba(90, 170, 230, .10), transparent 70%); }
body[data-atmo="muted"] #atmo { opacity: 1; background: radial-gradient(90% 60% at 50% 55%, rgba(150, 160, 190, .08), transparent 70%); }
body[data-atmo="dark"] #atmo { opacity: 1; background: radial-gradient(90% 60% at 50% 55%, rgba(10, 12, 30, .45), transparent 70%); }
:root[data-theme="dark"] body[data-atmo="warm"] #atmo { background: radial-gradient(90% 60% at 50% 60%, rgba(255, 140, 70, .12), transparent 70%); }

/* floating mini-player: only once playback begins */
.player { transition: transform .5s cubic-bezier(.2,.8,.2,1), opacity .4s; min-height: 64px; padding: 8px 14px; width: min(720px, calc(100% - 20px)); }
.player.player-hidden { transform: translate(-50%, 140%); opacity: 0; pointer-events: none; }
.player .play-btn { width: 48px; height: 48px; } .player .play-btn::after { inset: 10px; }
.player-sub { display: none; }
.player-vol { width: 200px; }

/* immerse */
.now.immerse { background: var(--bg); backdrop-filter: none; -webkit-backdrop-filter: none; }
.now.immerse #now-canvas { position: absolute; inset: 0; width: 100%; height: 100%; }
.now.immerse .now-inner { position: relative; z-index: 2; justify-content: flex-end; height: 100%; padding-bottom: calc(34px + env(safe-area-inset-bottom, 0px)); }
.now-core { width: 84px; height: 84px; border-radius: 50%; border: 0; cursor: pointer; display: grid; place-items: center; color: #fff; background: linear-gradient(135deg, var(--accent), var(--accent-2)); box-shadow: 0 14px 40px var(--ring); transition: transform .4s cubic-bezier(.2,.8,.2,1); }
.now-core .ico-pause { display: none; } .now-core[aria-pressed="true"] .ico-pause { display: block; } .now-core[aria-pressed="true"] .ico-play { display: none; }
.immerse-top { position: absolute; top: calc(14px + env(safe-area-inset-top, 0px)); right: 16px; z-index: 3; }
.immerse-ui { transition: opacity .8s ease; }
.now.idle .immerse-ui { opacity: 0; } .now.idle { cursor: none; }
@media (max-width: 640px) { .field { width: 86vw; } .field-core { width: 84px; height: 84px; margin: -42px 0 0 -42px; } .field-core.idle { width: 120px; height: 120px; margin: -60px 0 0 -60px; } .sound-grid { grid-template-columns: repeat(auto-fill, minmax(118px, 1fr)); } .tile-preview { width: 76px; height: 76px; } .player-vol { width: 100%; } .fa { padding: 9px 11px; font-size: .85rem; } }
@media (prefers-reduced-motion: reduce) { .tile-preview { transition: none; } }

@media (max-width: 640px) { .player { flex-wrap: nowrap; min-height: 58px; padding: 6px 10px; gap: 8px; } .player .player-vol, .player #player-exp { display: none; } .player-timer { order: 0; font-size: .8rem; } .player-stop { padding: 6px 10px; min-height: 34px; } body { padding-bottom: calc(90px + env(safe-area-inset-bottom, 0px)); } .toast { bottom: calc(100px + env(safe-area-inset-bottom, 0px)); } }

/* back navigation */
.nav-back { flex-shrink: 0; }
.nav-back[hidden] { display: none; }
@media (max-width: 640px) { .nav-back { order: 0; } .topbar .brand { order: -1; } }

/* =====================================================================
   VISUAL FOCUS — environments, not cards
   ===================================================================== */
.focus-view .hero.compact { margin-bottom: 18px; }
.env-stage { position: relative; width: min(100%, 1100px); margin: 0 auto; aspect-ratio: 16 / 8; border-radius: 34px; overflow: hidden; background: var(--bg-2); box-shadow: 0 30px 80px rgba(0, 0, 0, .25); }
:root[data-theme="dark"] .env-stage { box-shadow: 0 30px 90px rgba(0, 0, 0, .6); }
.env-stage canvas { position: absolute; inset: 0; width: 100%; height: 100%; }
.env-stage-ui { position: absolute; inset: 0; display: flex; flex-direction: column; justify-content: flex-end; align-items: flex-start; padding: clamp(18px, 4vw, 40px); background: linear-gradient(180deg, transparent 45%, rgba(0, 0, 0, .45)); color: #fff; text-shadow: 0 2px 12px rgba(0, 0, 0, .5); }
.env-stage-name { font-size: clamp(2rem, 5vw, 3.4rem); font-weight: 600; letter-spacing: -0.03em; line-height: 1; }
.env-stage-desc { margin-top: 6px; max-width: 46ch; opacity: .9; }
.env-stage-sound { font-size: .78rem; letter-spacing: .14em; text-transform: uppercase; opacity: .8; margin-top: 8px; }
.env-stage-actions { display: flex; gap: 10px; margin-top: 16px; flex-wrap: wrap; }
.env-stage-actions .btn-ghost { color: #fff; border-color: rgba(255, 255, 255, .35); background: rgba(0, 0, 0, .25); backdrop-filter: blur(8px); }
.env-mosaic { display: grid; grid-template-columns: repeat(4, 1fr); grid-auto-rows: 150px; gap: 12px; margin: 14px auto 22px; width: min(100%, 1100px); }
.env-tile { position: relative; border: 0; padding: 0; border-radius: 22px; overflow: hidden; cursor: pointer; background: var(--bg-2); box-shadow: var(--shadow); transition: transform .3s cubic-bezier(.2,.8,.2,1), box-shadow .3s; font: inherit; color: #fff; text-align: left; }
.env-tile.big { grid-column: span 2; grid-row: span 2; }
.env-tile canvas { position: absolute; inset: 0; width: 100%; height: 100%; transition: transform 1.2s ease; }
.env-tile:hover canvas { transform: scale(1.04); }
.env-tile:hover { transform: translateY(-3px); }
.env-tile.active { box-shadow: 0 0 0 3px var(--accent), var(--shadow); }
.env-tile-name { position: absolute; left: 14px; bottom: 12px; font-weight: 700; font-size: 1rem; text-shadow: 0 1px 8px rgba(0, 0, 0, .6); }
.env-tile.big .env-tile-name { font-size: 1.3rem; left: 18px; bottom: 16px; }
.focus-settings-open { justify-content: center; border-top: 0; padding-top: 0; margin: 6px auto 10px; }
.more-visuals { margin-top: 26px; }
.more-visuals summary { cursor: pointer; list-style: none; }
.more-visuals summary::-webkit-details-marker { display: none; }
.more-visuals summary::after { content: " ▾"; color: var(--muted); }
.more-visuals[open] summary::after { content: " ▴"; }
.chooser { position: fixed; inset: 0; z-index: 53; display: flex; align-items: center; justify-content: center; background: color-mix(in srgb, var(--bg) 78%, transparent); backdrop-filter: blur(24px); -webkit-backdrop-filter: blur(24px); animation: fadeUp .3s ease both; padding: 20px; }
.chooser[hidden] { display: none; }
.chooser-inner { width: min(920px, 100%); text-align: center; position: relative; }
.chooser-inner .h1 { font-size: clamp(1.6rem, 4vw, 2.6rem); }
.chooser-close { position: absolute; top: -6px; right: 0; }
.chooser-list { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin-top: 18px; }
.chooser-tile { position: relative; border: 0; padding: 0; aspect-ratio: 3 / 2; border-radius: 20px; overflow: hidden; cursor: pointer; background: var(--bg-2); box-shadow: var(--shadow); color: #fff; font: inherit; font-weight: 700; transition: transform .3s cubic-bezier(.2,.8,.2,1); }
.chooser-tile:hover { transform: scale(1.03); }
.chooser-tile canvas { position: absolute; inset: 0; width: 100%; height: 100%; }
.chooser-tile span { position: absolute; left: 14px; bottom: 12px; font-size: 1.05rem; text-shadow: 0 1px 8px rgba(0, 0, 0, .6); }
body.entering #field { transform: scale(1.6); opacity: 0; transition: transform .55s cubic-bezier(.2,.8,.2,1), opacity .5s; }
#field { transition: transform .55s cubic-bezier(.2,.8,.2,1), opacity .5s; }
.focus-screen { background: radial-gradient(120% 80% at 50% 20%, #111a36 0%, #070a16 70%); }
:root:not([data-theme="dark"]) .focus-screen { background: radial-gradient(120% 80% at 50% 20%, #f3f1ec 0%, #d9d9e2 70%); }
@media (max-width: 760px) { .env-stage { aspect-ratio: 4 / 5; border-radius: 26px; } .env-mosaic { grid-template-columns: repeat(2, 1fr); grid-auto-rows: 120px; } .env-tile.big { grid-column: span 2; grid-row: span 1; } .chooser-list { grid-template-columns: repeat(2, 1fr); } .env-stage-actions .btn-lg { padding: 12px 22px; } }

/* =====================================================================
   SOFTWAVE v3 — ENVIRONMENT LANGUAGE (from the approved Brown Noise + Ocean prototypes)
   Sound becomes visual. Visual becomes environment. Controls are subordinate to the experience.
   ===================================================================== */
:root { --sf-display: "Fraunces", Georgia, "Times New Roman", serif; --sf-ink: #1f1d1a; --sf-ink-2: rgba(31,29,26,.74); --sf-ink-3: rgba(31,29,26,.54); --sf-line: rgba(31,29,26,.14); --sf-glass: rgba(255,252,247,.55); --sf-glass-strong: rgba(255,252,247,.8); --sf-accent: #7d5a3c; --sf-core: rgba(255,252,247,.55); --sf-core-ring: rgba(31,29,26,.18); --sf-range: rgba(31,29,26,.16); --sf-range-fill: rgba(125,90,60,.8); --sf-bg-a: #f6f3ec; --sf-bg-b: #ebe6dc; }
html[data-theme="dark"] { --sf-ink: #eef0f4; --sf-ink-2: rgba(238,240,244,.78); --sf-ink-3: rgba(238,240,244,.55); --sf-line: rgba(238,240,244,.14); --sf-glass: rgba(14,17,26,.42); --sf-glass-strong: rgba(14,17,26,.66); --sf-accent: #e5d3ba; --sf-core: rgba(238,240,244,.10); --sf-core-ring: rgba(238,240,244,.26); --sf-range: rgba(238,240,244,.22); --sf-range-fill: rgba(229,211,186,.85); --sf-bg-a: #12141c; --sf-bg-b: #0a0c12; }

/* ---- the stage: full-bleed environment, not a card ---- */
body { overflow-x: hidden; }
.sf-stage { position: relative; width: 100vw; margin-left: calc(50% - 50vw); margin-top: -48px; padding: 40px 20px 44px; background: radial-gradient(70% 60% at 50% 42%, var(--sf-bg-a), var(--sf-bg-b)); color: var(--sf-ink); overflow: hidden; }
.sf-stage::after { content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 120px; background: linear-gradient(to bottom, transparent, var(--bg)); pointer-events: none; }
#field-canvas { position: absolute; inset: 0; width: 100%; height: 100%; pointer-events: none; z-index: 0; }
#field-canvas.fs { position: fixed; inset: 0; z-index: 60; width: 100vw; height: 100dvh; }
.sf-stage > *:not(canvas) { position: relative; z-index: 1; }
.sf-hero { margin: 0 auto; max-width: 640px; text-align: center; }
.sf-hero .brand-eyebrow { font-size: .72rem; letter-spacing: .26em; text-transform: uppercase; color: var(--sf-ink-3); font-weight: 500; margin: 0 0 12px; }
.sf-hero h1 { font-family: var(--sf-display); font-weight: 300; font-size: clamp(2rem, 4.4vw, 3.1rem); letter-spacing: -.01em; line-height: 1.1; margin: 0; color: var(--sf-ink); }
.sf-hero .lead { font-family: var(--sf-display); font-weight: 300; font-size: clamp(1.05rem, 1.8vw, 1.35rem); color: var(--sf-ink-2); margin: 10px auto 0; max-width: 34ch; }
.field-wrap { position: relative; margin-top: 6px; }
.field { width: min(520px, 54vh, 78vw); aspect-ratio: 1; border-radius: 0; border: 0; background: none; box-shadow: none; margin: 26px auto 14px; display: grid; place-items: center; overflow: visible; }
.field::before, .field::after { display: none; }
.field-core, .field-core.idle { position: static; margin: 0; width: 76px; height: 76px; border-radius: 50%; background: var(--sf-core); border: 1px solid var(--sf-core-ring); color: var(--sf-ink); backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px); box-shadow: none; transition: transform .6s cubic-bezier(.2,.8,.2,1), background .4s, width .6s, height .6s; display: grid; place-items: center; }
.field-core.idle { width: 116px; height: 116px; font-size: .78rem; letter-spacing: .12em; text-transform: uppercase; line-height: 1.3; font-weight: 500; }
.field-core:hover { transform: scale(1.05); background: var(--sf-glass-strong); }
.field-core.pressed { transform: scale(1.1); }
.field[data-state="playing"] .field-core { box-shadow: none; }
.field-core .ico-play, .field-core .ico-pause { color: var(--sf-ink); }
.field-name { font-family: var(--sf-display); font-weight: 400; font-size: clamp(1.5rem, 2.6vw, 2rem); letter-spacing: .01em; color: var(--sf-ink); }
.field-desc { font-size: .84rem; letter-spacing: .12em; text-transform: uppercase; color: var(--sf-ink-2); margin-top: 6px; font-weight: 500; }
.field-desc .linklike { color: var(--sf-accent); }
.field-controls { margin-top: 22px; gap: 22px; }
.field-vol { width: min(300px, 72vw); gap: 14px; }
.field-vol input[type="range"]::-webkit-slider-thumb { width: 18px; height: 18px; background: var(--sf-ink); border: 0; box-shadow: 0 2px 10px rgba(0,0,0,.25); }
.field-vol input[type="range"]::-moz-range-thumb { width: 18px; height: 18px; background: var(--sf-ink); border: 0; }
.field-vol output { font-size: .78rem; color: var(--sf-ink-3); width: 3ch; }
.field-actions { gap: clamp(22px, 4vw, 44px); }
.field-actions .fa, .fa-immerse { all: unset; cursor: pointer; font-size: .84rem; letter-spacing: .06em; color: var(--sf-ink-2); padding: 8px 2px; position: relative; font-weight: 500; transition: color .3s; }
.field-actions .fa::after { content: ""; position: absolute; left: 50%; right: 50%; bottom: 2px; height: 1px; background: var(--sf-accent); transition: left .3s, right .3s; }
.field-actions .fa:hover { color: var(--sf-ink); } .field-actions .fa:hover::after { left: 0; right: 0; }
.field-actions .fa:focus-visible, .fa-immerse:focus-visible { outline: 2px solid var(--sf-accent); outline-offset: 4px; border-radius: 6px; }
.fa-ico { display: none; }
.fa-immerse { padding: 11px 24px; border-radius: 999px; border: 1px solid var(--sf-line); letter-spacing: .14em; text-transform: uppercase; font-size: .78rem; }
.fa-immerse:hover { color: var(--sf-ink); border-color: var(--sf-ink-3); letter-spacing: .18em; }

/* ---- transition: the field leaves the page and becomes the environment ---- */
body.transit .sf-hero, body.transit .field-wrap, body.transit .topbar, body.transit #player, body.transit #nav-back { opacity: 0 !important; transition: opacity .9s ease; pointer-events: none; }
.sf-hero, .field-wrap, .topbar, #player { transition: opacity .9s ease; }
.focus-screen { z-index: 62; }

/* ---- sound library: compact living previews, no boxes ---- */
.sound-library { max-width: 1060px; margin: 0 auto; padding: 0 4px; }
.sound-library .group-title { margin: 30px 0 8px; font-size: .7rem; letter-spacing: .26em; color: var(--sf-ink-3); font-weight: 500; text-align: left; }
html[data-theme="dark"] .sound-library .group-title { color: rgba(238,240,244,.42); }
.sound-library .group-learn { margin: -2px 0 8px; }
.sound-grid { display: flex; flex-wrap: wrap; gap: 6px 18px; }
.sound-card, .sound-card:hover, .sound-card.active { background: transparent; box-shadow: none; border: 0; padding: 8px 6px 10px; min-height: 0; width: 154px; opacity: .62; transition: opacity .35s; backdrop-filter: none; -webkit-backdrop-filter: none; }
.sound-card:hover { opacity: .9; } .sound-card.active { opacity: 1; }
.sound-card .card-btn { gap: 10px; }
.tile-preview { width: 126px; height: 82px; border-radius: 14px; transform: none; transition: transform .5s cubic-bezier(.2,.8,.2,1), box-shadow .5s; overflow: hidden; }
.tile-preview canvas { border-radius: 14px; }
.sound-card:hover .tile-preview { transform: scale(1.04); }
.sound-card.active .tile-preview { transform: scale(1.1); box-shadow: 0 0 0 1px var(--sf-accent), 0 16px 40px rgba(0,0,0,.3); }
.sound-card .name { font-weight: 500; font-size: .84rem; letter-spacing: .02em; }
.sound-card .desc { font-size: .62rem; letter-spacing: .06em; text-transform: none; color: var(--sf-ink-3); margin-top: -6px; max-width: 138px; line-height: 1.25; }
html[data-theme="dark"] .sound-card .desc { color: rgba(238,240,244,.42); }
.sound-card .vol { width: 100%; margin: -2px 0; }   /* sits directly under the tile, above the name */
.sound-card .vol .vol-pause, .sound-card .vol .vol-stop { display: grid; place-items: center; width: 26px; height: 26px; flex: none; border: 1px solid var(--border); border-radius: 50%; background: var(--accent-soft); color: var(--sf-ink); cursor: pointer; padding: 0; }
.sound-card .vol .vol-pause:hover, .sound-card .vol .vol-stop:hover { box-shadow: 0 0 0 2px var(--ring); }
.sound-card .vol .vol-pause:focus-visible, .sound-card .vol .vol-stop:focus-visible { outline: 2px solid var(--ring); outline-offset: 2px; }
.sound-card .vol .vol-pause .vp-play { display: none; }
.sound-card .vol .vol-pause.paused .vp-pause { display: none; }
.sound-card .vol .vol-pause.paused .vp-play { display: block; }
.sound-card .vol input[type="range"] { height: 2px; }
.presets-row { margin-top: 36px; }
.row-title { font-size: .7rem; letter-spacing: .26em; color: var(--sf-ink-3); font-weight: 500; text-transform: uppercase; }
html[data-theme="dark"] .row-title { color: rgba(238,240,244,.42); }

/* ---- persistent player: minimal glass, never competes with the field ---- */
.player { background: var(--sf-glass-strong); backdrop-filter: blur(18px); -webkit-backdrop-filter: blur(18px); border: 1px solid var(--sf-line); box-shadow: 0 18px 50px rgba(0,0,0,.22); width: min(640px, calc(100% - 20px)); min-height: 56px; padding: 6px 14px; }
.player-title { font-weight: 500; font-size: .92rem; }
.player-vol input[type="range"] { height: 2px; }

/* ---- Immerse overlay ---- */
#now-name { font-family: var(--sf-display); font-weight: 400; }

/* ---- Visual Focus landing: environments, not cards ---- */
.focus-view .hero h1, .focus-view .h1 { font-family: var(--sf-display); font-weight: 300; letter-spacing: -.01em; }
.env-stage { border-radius: 28px; }
.env-stage-name { font-family: var(--sf-display); font-weight: 300; letter-spacing: .14em; text-transform: uppercase; font-size: clamp(2rem, 5vw, 3.6rem); }
.env-stage-desc { font-weight: 300; }
.env-stage-sound { font-weight: 500; }
.env-mosaic { gap: 12px; }
.env-tile { border-radius: 20px; }
.env-tile::after { content: ""; position: absolute; inset: 0; background: linear-gradient(to top, rgba(0,0,0,.45), rgba(0,0,0,0) 55%); pointer-events: none; }
.env-tile-name { font-weight: 500; letter-spacing: .04em; z-index: 1; }
.env-tile.active { box-shadow: 0 0 0 1px var(--sf-accent), 0 16px 40px rgba(0,0,0,.3); }
.pair-card { border-radius: 20px; }

/* ---- chooser ("What do you want to focus on?") ---- */
.chooser { background: var(--sf-glass-strong); backdrop-filter: blur(24px); -webkit-backdrop-filter: blur(24px); }
.chooser-inner .h1 { font-family: var(--sf-display); font-weight: 300; }
.chooser-tile { border-radius: 18px; }
.chooser-tile span { font-weight: 500; letter-spacing: .04em; }

/* ---- focus screen: the environment is the experience ---- */
.focus-screen .focus-top { display: flex; flex-direction: column; align-items: center; text-align: center; left: 0; right: 0; top: 9vh; gap: 6px; pointer-events: none; }
.focus-screen .focus-names { display: flex; flex-direction: column; align-items: center; gap: 8px; text-shadow: 0 2px 30px rgba(0,0,0,.35); }
.focus-visual-name { font-family: var(--sf-display); font-weight: 300; font-size: clamp(2.2rem, 6vw, 4.2rem); letter-spacing: .16em; text-transform: uppercase; color: #fff; }
.focus-sound-name { font-size: .8rem; letter-spacing: .14em; text-transform: uppercase; color: rgba(255,255,255,.7); font-weight: 500; }
:root:not([data-theme="dark"]) .focus-visual-name { color: #1f1d1a; text-shadow: 0 2px 30px rgba(255,255,255,.6); }
:root:not([data-theme="dark"]) .focus-sound-name { color: rgba(31,29,26,.64); }
.focus-screen .focus-top-actions { position: fixed; top: max(14px, env(safe-area-inset-top)); right: 16px; display: flex; gap: 6px; pointer-events: auto; }
.focus-screen .btn-ghost { border: 1px solid var(--sf-line); background: var(--sf-glass); backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px); color: var(--sf-ink); font-weight: 500; font-size: .8rem; letter-spacing: .04em; }
.focus-screen .btn-ghost:hover { background: var(--sf-glass-strong); }
.focus-screen .focus-bar { left: 50%; right: auto; transform: translateX(-50%); width: auto; max-width: calc(100% - 24px); bottom: calc(18px + env(safe-area-inset-bottom)); background: var(--sf-glass); backdrop-filter: blur(18px); -webkit-backdrop-filter: blur(18px); border: 1px solid var(--sf-line); border-radius: 999px; padding: 10px 18px; gap: clamp(10px, 2vw, 22px); }
.focus-screen .focus-bar .btn-ghost { border: 0; background: transparent; }
.focus-screen .focus-bar .btn-ghost:hover { background: transparent; color: var(--sf-accent); }
.focus-screen .focus-ui { transition: opacity 1.4s ease; }
.focus-screen .focus-bar .play-btn, .focus-screen .focus-bar .play-btn:hover { background: var(--sf-core) !important; background-image: none !important; border: 1px solid var(--sf-core-ring); color: var(--sf-ink); backdrop-filter: blur(10px); box-shadow: none; }
.focus-screen .focus-vol input[type="range"] { height: 2px; }
.focus-panel { background: var(--sf-glass-strong); backdrop-filter: blur(22px); -webkit-backdrop-filter: blur(22px); border: 1px solid var(--sf-line); border-radius: 24px; }

/* ---- mobile ---- */
@media (max-width: 640px) {
  .sf-stage { padding: 26px 16px 36px; margin-top: -20px; }
  .field { width: min(88vw, 50vh); margin: 20px auto 10px; }
  .sf-hero h1 { font-size: 1.7rem; }
  .sf-hero .lead { font-size: 1rem; }
  .field-vol { width: 80vw; }
  .field-actions { gap: 18px; }
  .sound-grid { gap: 2px 8px; justify-content: flex-start; }
  .sound-card { width: calc(50% - 6px); padding: 8px 2px 10px; }
  .tile-preview { width: 112px; height: 75px; max-width: 100%; }
  .focus-screen .focus-top { top: auto; bottom: 124px; }
  .focus-visual-name { font-size: 2.2rem; }
}
@media (max-height: 520px) and (orientation: landscape) {
  .sf-hero { display: none; } .field { width: 56vh; margin-top: 8px; }
  .focus-screen .focus-top { top: 12px; } .focus-visual-name { font-size: 1.6rem; }
}
@media (prefers-reduced-motion: reduce) { .field-core, .tile-preview, .field-actions .fa::after { transition: none; } }

/* thin, quiet ranges inside the environment surfaces (track uses --pct from paintRange) */
.field-vol input[type="range"]::-webkit-slider-runnable-track, .focus-screen .focus-vol input[type="range"]::-webkit-slider-runnable-track, .player .player-vol input[type="range"]::-webkit-slider-runnable-track, #now .now-vol input[type="range"]::-webkit-slider-runnable-track { height: 2px; background: linear-gradient(90deg, var(--sf-range-fill) var(--pct, 35%), var(--sf-range) var(--pct, 35%)); }
.field-vol input[type="range"]::-webkit-slider-thumb, .focus-screen .focus-vol input[type="range"]::-webkit-slider-thumb, .player .player-vol input[type="range"]::-webkit-slider-thumb { width: 16px; height: 16px; margin-top: -7px; background: var(--sf-ink); border: 0; box-shadow: 0 2px 8px rgba(0,0,0,.25); }
.field-vol input[type="range"]::-moz-range-track, .focus-screen .focus-vol input[type="range"]::-moz-range-track { height: 2px; background: var(--sf-range); }
.field-vol input[type="range"]::-moz-range-progress, .focus-screen .focus-vol input[type="range"]::-moz-range-progress { height: 2px; background: var(--sf-range-fill); }
.field-vol input[type="range"]::-moz-range-thumb, .focus-screen .focus-vol input[type="range"]::-moz-range-thumb { width: 16px; height: 16px; background: var(--sf-ink); border: 0; }
/* Master volume by the field: prominent, labeled, hard to miss */
.field-vol { width: min(440px, 86vw); gap: 12px; }
.field-vol .field-vol-label { display: flex; align-items: center; gap: 7px; color: var(--sf-ink-3); font-size: .8rem; font-weight: 600; letter-spacing: .05em; text-transform: uppercase; white-space: nowrap; }
.field-vol input[type="range"] { height: 24px; }
.field-vol input[type="range"]::-webkit-slider-runnable-track { height: 5px; border-radius: 3px; }
.field-vol input[type="range"]::-webkit-slider-thumb { width: 22px; height: 22px; margin-top: -8.5px; }
.field-vol input[type="range"]::-moz-range-track { height: 5px; border-radius: 3px; }
.field-vol input[type="range"]::-moz-range-progress { height: 5px; }
.field-vol input[type="range"]::-moz-range-thumb { width: 22px; height: 22px; }
.field-vol output { font-size: .95rem; font-weight: 600; width: 4ch; color: var(--sf-ink); }
.field-vol .vol-pause, .field-vol .vol-stop { display: grid; place-items: center; width: 38px; height: 38px; flex: none; border: 1px solid var(--border); border-radius: 50%; background: var(--accent-soft); color: var(--sf-ink); cursor: pointer; padding: 0; }
.field-vol .vol-pause:hover, .field-vol .vol-stop:hover { box-shadow: 0 0 0 2px var(--ring); }
.field-vol .vol-pause:focus-visible, .field-vol .vol-stop:focus-visible { outline: 2px solid var(--ring); outline-offset: 2px; }
.field-vol .vol-pause .vp-play { display: none; }
.field-vol .vol-pause.paused .vp-pause { display: none; }
.field-vol .vol-pause.paused .vp-play { display: block; }
.field-desc-alt { display: block; margin-top: 7px; font-size: .92em; opacity: .85; }

/* ---- personalized moments + starter journey ---- */
.moments-row .moments-note { margin: -4px 0 10px; color: #3e9a72; }
.moments-row .row-title { color: #3e9a72; }
:root[data-theme="dark"] .moments-row .moments-note, :root[data-theme="dark"] .moments-row .row-title { color: #9fe0bb; }
.journey-chip { display: flex; align-items: center; gap: 8px; margin: 4px 0 14px; }
.journey-chip .chip strong::before { content: "☀ "; }
.journey-veil .journey-card .btn-row { flex-wrap: wrap; }
.fa-tuned { font-size: .78rem; opacity: .85; }
.fa-tuned[aria-pressed="true"]::before { content: "✦ "; }

/* ---- contextual Premium dialog (inert during free launch) ---- */
.premium-veil { position: fixed; inset: 0; z-index: 300; display: flex; align-items: center; justify-content: center; padding: 18px; background: rgba(8, 11, 20, 0.6); backdrop-filter: blur(6px); -webkit-backdrop-filter: blur(6px); overflow-y: auto; }
.premium-card { background: var(--card-solid); color: var(--text); border-radius: var(--radius); box-shadow: var(--shadow); border: 1px solid var(--border); max-width: 560px; width: 100%; max-height: calc(100vh - 36px); overflow-y: auto; padding: 26px 24px; text-align: center; }
.premium-card .prem-eyebrow { font-size: .72rem; letter-spacing: .24em; text-transform: uppercase; color: var(--muted); margin: 0 0 10px; }
.premium-card h2 { font-family: var(--sf-display); font-weight: 300; font-size: clamp(1.4rem, 3.4vw, 1.9rem); margin: 0 0 10px; }
.premium-card .prem-line { color: var(--muted); margin: 0 auto 14px; max-width: 40ch; }
.premium-card .prem-terms { font-size: .85rem; color: var(--muted); margin: 12px auto; max-width: 44ch; }
.prem-actions { display: flex; flex-direction: column; gap: 10px; align-items: center; margin-top: 6px; }
.prem-actions .btn { width: min(340px, 100%); justify-content: center; }
.prem-links { margin: 12px 0 0; }
.prem-plans { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; text-align: left; margin: 16px 0 4px; }
.prem-plan { border: 1px solid var(--border); border-radius: 18px; padding: 16px; background: var(--card); }
.prem-plan h3 { margin: 0 0 6px; }
.prem-plan ul { margin: 10px 0 0; padding-left: 18px; font-size: .85rem; color: var(--muted); display: grid; gap: 5px; }
.prem-price { font-size: 1.25rem; font-weight: 800; margin: 0; }
.prem-price span { font-size: .8rem; font-weight: 500; color: var(--muted); }
.prem-plan-best { border-color: var(--accent); box-shadow: 0 0 0 1px var(--accent); position: relative; }
.prem-badge { position: absolute; top: -10px; right: 12px; background: var(--accent); color: #fff; font-size: .68rem; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; border-radius: 999px; padding: 3px 10px; margin: 0; }
.prem-trial-note { font-size: .85rem; font-weight: 700; color: var(--accent); margin: 4px 0 0; }
.prem-alt { font-size: .8rem; color: var(--muted); margin: 10px 0 0; }
@media (max-width: 640px) { .prem-plans { grid-template-columns: 1fr; } .premium-card { padding: 20px 16px; } }
@media (prefers-reduced-motion: reduce) { .premium-veil { backdrop-filter: none; -webkit-backdrop-filter: none; } }

.env-stage-actions .btn-primary { background: #fff; color: #1f1d1a; border: 0; box-shadow: 0 10px 30px rgba(0,0,0,.25); font-weight: 600; letter-spacing: .04em; }
.env-stage-actions .btn-primary:hover { background: #f3efe7; }
.env-stage-ui { background: linear-gradient(to top, rgba(0,0,0,.55), rgba(0,0,0,0) 60%); }

/* an exit is always reachable: when controls fade, Exit stays faint but live */
.focus-screen.idle .focus-top { opacity: 1; pointer-events: none; }
.focus-screen.idle .focus-names { opacity: 0; transition: opacity 1.4s ease; }
.focus-screen .focus-names { transition: opacity 1.4s ease; }
.focus-screen.idle .focus-top-actions { opacity: .38; pointer-events: auto; transition: opacity 1.4s ease; }
.focus-screen .focus-top-actions { transition: opacity 1.4s ease; }
.now.idle .immerse-top { opacity: .38; pointer-events: auto; }

/* focus bar: one quiet pill, the blue core replaced by the glass core */
.focus-screen .focus-bar { flex-wrap: nowrap; gap: clamp(6px, 1.6vw, 18px); padding: 8px 14px; }
.focus-screen .focus-bar .play-btn { width: 44px; height: 44px; }
.focus-screen .focus-bar .play-btn::after { background: var(--sf-core); inset: 0; border: 1px solid var(--sf-core-ring); box-sizing: border-box; }
.focus-screen .focus-bar .play-btn svg { color: var(--sf-ink); filter: none; }
.focus-screen .focus-bar .focus-vol { width: clamp(70px, 14vw, 140px); }
.focus-screen .focus-bar .btn-sm { padding: 6px 8px; font-size: .78rem; white-space: nowrap; }
@media (max-width: 640px) { .focus-screen .focus-bar { flex-wrap: wrap; justify-content: center; border-radius: 26px; gap: 6px 10px; } .focus-screen .focus-bar .focus-vol { width: 100%; order: -1; } }
@media (max-height: 520px) and (orientation: landscape) { .focus-screen .focus-bar { bottom: 10px; flex-wrap: nowrap; } .focus-screen .focus-bar .focus-vol { width: 90px; order: 0; } }

/* =====================================================================
   THE LAB v3 — deeper, experimental, interactive; still Softwave.
   Premium sound studio + generative art lab + Softwave calm.
   ===================================================================== */
.lab-view { --lab-bg-a: #f3efe7; --lab-bg-b: #e8e3d9; --lab-ink: var(--sf-ink); }
html[data-theme="dark"] .lab-view { --lab-bg-a: #0f1320; --lab-bg-b: #090b12; }
.lab-hero { position: relative; width: 100vw; margin-left: calc(50% - 50vw); margin-top: -48px; padding: 64px 20px 30px; background: radial-gradient(80% 70% at 50% 30%, var(--lab-bg-a), var(--lab-bg-b)); color: var(--sf-ink); overflow: hidden; }
.lab-hero::after { content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 120px; background: linear-gradient(to bottom, transparent, var(--bg)); pointer-events: none; }
#lab-field { position: absolute; inset: 0; width: 100%; height: 100%; pointer-events: none; }
.lab-hero-inner { position: relative; text-align: center; max-width: 680px; margin: 0 auto; }
.lab-hero .lab-eyebrow { background: transparent; color: var(--sf-ink-3); font-size: .72rem; letter-spacing: .3em; font-weight: 500; padding: 0; margin-bottom: 14px; }
.lab-hero h2.h1 { font-family: var(--sf-display); font-weight: 300; font-size: clamp(2.2rem, 5vw, 3.6rem); letter-spacing: -.01em; margin: 0; color: var(--sf-ink); }
.lab-hero .lead { font-family: var(--sf-display); font-weight: 300; font-size: clamp(1.05rem, 1.8vw, 1.3rem); color: var(--sf-ink-2); max-width: 44ch; margin: 12px auto 0; }

/* flagship: Find My Sound */
.lab-flagship { position: relative; display: grid; grid-template-columns: minmax(220px, 340px) 1fr; gap: 28px; align-items: center; max-width: 980px; margin: -10px auto 26px; padding: 26px 30px; border-radius: 30px; background: var(--sf-glass); backdrop-filter: blur(18px); -webkit-backdrop-filter: blur(18px); border: 1px solid var(--sf-line); box-shadow: 0 30px 80px rgba(0,0,0,.22); }
.lab-flag-obj { aspect-ratio: 1; width: 100%; max-width: 340px; margin: 0 auto; }
.lab-flag-obj canvas { width: 100%; height: 100%; display: block; }
.lab-flag-body .lab-cat { font-size: .7rem; letter-spacing: .26em; text-transform: uppercase; color: var(--sf-ink-3); font-weight: 500; }
.lab-flag-body h3 { font-family: var(--sf-display); font-weight: 300; font-size: clamp(1.6rem, 3vw, 2.3rem); margin: 8px 0 10px; letter-spacing: -.01em; color: var(--sf-ink); }
.lab-flag-body p { color: var(--sf-ink-2); max-width: 46ch; margin: 0 0 18px; }
.lab-flag-body .btn-xl { background: var(--sf-ink); color: var(--bg); border: 0; box-shadow: 0 14px 36px rgba(0,0,0,.25); font-weight: 600; letter-spacing: .04em; }
.lab-flag-body .btn-xl:hover { filter: brightness(1.08); }
.lab-notice { background: transparent; border: 1px solid var(--sf-line); color: var(--sf-ink-2); font-size: .86rem; max-width: 980px; margin: 0 auto 22px; border-radius: 18px; }

/* profile: sound fingerprint */
.lab-profile-card { max-width: 980px; margin: 0 auto 30px; border-radius: 26px; background: var(--sf-glass); border: 1px solid var(--sf-line); backdrop-filter: blur(14px); display: grid; grid-template-columns: 200px 1fr; gap: 22px; align-items: center; }
.lab-profile-card h2 { grid-column: 1 / -1; font-family: var(--sf-display); font-weight: 300; font-size: 1.4rem; margin: 0; }
.profile-fp { width: 200px; aspect-ratio: 1; } .profile-fp canvas { width: 100%; height: 100%; display: block; }
@media (max-width: 640px) { .lab-profile-card { grid-template-columns: 1fr; } .profile-fp { width: 160px; margin: 0 auto; } }

/* experiments: living tiles, real hierarchy */
.lab-view .row-title { font-size: .7rem; letter-spacing: .3em; color: var(--sf-ink-3); font-weight: 500; max-width: 980px; margin: 30px auto 8px; }
#lab-list { max-width: 980px; margin: 0 auto; }
.lab-group { margin: 18px 0 10px; }
.lab-group-title { font-family: var(--sf-display); font-weight: 300; font-size: 1.4rem; letter-spacing: .02em; text-transform: none; color: var(--sf-ink); margin: 0; }
.lab-group > .muted.small { margin: 2px 0 12px; color: var(--sf-ink-3); }
.lab-grid { display: grid; grid-template-columns: repeat(3, 1fr); grid-auto-rows: 190px; gap: 14px; }
.lab-tile { all: unset; cursor: pointer; position: relative; display: block; border-radius: 22px; overflow: hidden; background: var(--sf-glass); border: 1px solid var(--sf-line); box-sizing: border-box; transition: transform .45s cubic-bezier(.2,.8,.2,1), box-shadow .45s, border-color .3s; }
.lab-tile:hover { transform: translateY(-3px); box-shadow: 0 22px 50px rgba(0,0,0,.28); }
.lab-tile:focus-visible { outline: 2px solid var(--sf-accent); outline-offset: 3px; }
.lab-tile.big { grid-column: span 2; grid-row: span 2; }
.lab-tile.running { border-color: var(--sf-accent); box-shadow: 0 0 0 1px var(--sf-accent), 0 22px 50px rgba(0,0,0,.28); }
.lab-pv { position: absolute; inset: 0; display: block; }
.lab-pv canvas { width: 100%; height: 100%; display: block; }
.lab-tile::after { content: ""; position: absolute; inset: 0; background: linear-gradient(to top, rgba(8,10,16,.78) 0%, rgba(8,10,16,.35) 42%, rgba(8,10,16,0) 70%); pointer-events: none; }
:root:not([data-theme="dark"]) .lab-tile::after { background: linear-gradient(to top, rgba(240,236,228,.92) 0%, rgba(240,236,228,.5) 42%, rgba(240,236,228,0) 70%); }
.lab-tile-body { position: absolute; left: 16px; right: 16px; bottom: 14px; z-index: 1; display: flex; flex-direction: column; gap: 3px; color: var(--sf-ink); }
.lab-tile .lab-cat { font-size: .64rem; letter-spacing: .2em; text-transform: uppercase; color: var(--sf-ink-3); font-weight: 500; }
.lab-tile-name { font-family: var(--sf-display); font-weight: 400; font-size: 1.15rem; letter-spacing: .01em; }
.lab-tile.big .lab-tile-name { font-size: 1.8rem; font-weight: 300; }
.lab-tile-what { font-size: .8rem; color: var(--sf-ink-2); line-height: 1.35; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.lab-tile.big .lab-tile-what { font-size: .92rem; -webkit-line-clamp: 3; max-width: 46ch; }
.lab-tile-you { font-size: .7rem; color: var(--sf-accent); }
@media (max-width: 760px) { .lab-grid { grid-template-columns: repeat(2, 1fr); grid-auto-rows: 170px; } .lab-tile.big { grid-column: span 2; grid-row: span 1; min-height: 230px; } }
@media (max-width: 420px) { .lab-grid { grid-template-columns: 1fr; grid-auto-rows: 160px; } .lab-tile.big { grid-column: span 1; } }

/* detail panel: interface → experience → immersion */
.lab-detail { max-width: 980px; margin: 0 auto 26px; border-radius: 28px; background: var(--sf-glass-strong); border: 1px solid var(--sf-line); backdrop-filter: blur(18px); -webkit-backdrop-filter: blur(18px); box-shadow: 0 30px 80px rgba(0,0,0,.25); }
.lab-detail h2 { font-family: var(--sf-display); font-weight: 300; font-size: 2rem; letter-spacing: -.01em; }
.lab-detail .lab-cat { color: var(--sf-ink-3); letter-spacing: .14em; text-transform: uppercase; font-size: .7rem; }
.lab-detail.running .lab-dl, .lab-detail.running .lab-why, .lab-detail.running .lab-rate { display: none; }
.lab-view.running .lab-hero, .lab-view.running .lab-flagship, .lab-view.running .lab-notice, .lab-view.running .lab-profile-card, .lab-view.running #lab-list, .lab-view.running .lab-hist, .lab-view.running .premium-note, .lab-view.running > .row-title { opacity: .35; transition: opacity .8s ease; }
.lab-view .lab-hero, .lab-view .lab-flagship, .lab-view .lab-notice, .lab-view .lab-profile-card, .lab-view #lab-list, .lab-view .lab-hist, .lab-view .premium-note, .lab-view > .row-title { transition: opacity .8s ease; }
.lab-run .btn-primary { background: var(--sf-ink); color: var(--bg); border: 0; font-weight: 600; letter-spacing: .04em; }
.lab-run .btn-ghost, .lab-run .btn-secondary { border-color: var(--sf-line); }

/* Find My Sound: premium A/B */
.ab-switch { gap: 24px; margin: 18px 0 10px; }
.ab-obj { all: unset; cursor: pointer; position: relative; width: min(240px, 40vw); aspect-ratio: 1; border-radius: 50%; display: grid; place-items: center; transition: transform .6s cubic-bezier(.2,.8,.2,1), opacity .4s; opacity: .55; }
.ab-obj canvas { position: absolute; inset: 0; width: 100%; height: 100%; }
.ab-obj .lbl { position: relative; z-index: 1; font-family: var(--sf-display); font-weight: 300; font-size: 2.2rem; color: var(--sf-ink); letter-spacing: .1em; }
.ab-obj[aria-pressed="true"] { opacity: 1; transform: scale(1.06); }
.ab-obj:disabled { cursor: default; }
.ab-obj:focus-visible { outline: 2px solid var(--sf-accent); outline-offset: 6px; }
.disc-wrap .label-sm { font-size: .78rem; letter-spacing: .24em; text-transform: uppercase; color: var(--sf-ink-3); }
.disc-wrap [data-pick] { min-width: 120px; }
.disc-progress span { width: 8px; height: 8px; background: var(--sf-line); }
.disc-progress span.done { background: var(--sf-accent); } .disc-progress span.now { background: var(--sf-ink); box-shadow: none; }
.disc-reveal { text-align: center; border-radius: 26px; background: var(--sf-glass); border: 1px solid var(--sf-line); }
.disc-reveal .reveal-orb { width: min(300px, 70vw); aspect-ratio: 1; margin: 0 auto; }
.disc-reveal .reveal-orb canvas { width: 100%; height: 100%; display: block; }
.disc-reveal h3 { font-family: var(--sf-display); font-weight: 300; font-size: 1.8rem; text-transform: none; }
.desc-chips { display: flex; flex-wrap: wrap; justify-content: center; gap: 8px; margin: 8px 0 12px; }
.desc-chips span { padding: 6px 14px; border-radius: 999px; border: 1px solid var(--sf-line); font-size: .8rem; letter-spacing: .08em; text-transform: uppercase; color: var(--sf-ink-2); }

/* Sound Sculptor: tactile bipolar controls */
.lab-setting.ends label { display: flex; justify-content: space-between; font-size: .74rem; letter-spacing: .16em; text-transform: uppercase; color: var(--sf-ink-2); font-weight: 500; margin-bottom: 2px; }
.lab-setting.ends label output { color: var(--sf-accent); letter-spacing: .04em; text-transform: none; font-size: .82rem; }
.lab-setting.ends input[type="range"] { height: 30px; }
.lab-setting.ends input[type="range"]::-webkit-slider-runnable-track { height: 6px; border-radius: 999px; background: linear-gradient(90deg, var(--sf-range) 0%, var(--sf-range) calc(50% - 1px), var(--sf-ink-3) calc(50% - 1px), var(--sf-ink-3) calc(50% + 1px), var(--sf-range) calc(50% + 1px)); }
.lab-setting.ends input[type="range"]::-webkit-slider-thumb { width: 30px; height: 30px; margin-top: -12px; border-radius: 50%; background: var(--sf-glass-strong); border: 1px solid var(--sf-ink-3); box-shadow: 0 6px 18px rgba(0,0,0,.3), inset 0 0 0 6px var(--sf-glass); }
.lab-setting.ends input[type="range"]::-moz-range-track { height: 6px; border-radius: 999px; background: var(--sf-range); }
.lab-setting.ends input[type="range"]::-moz-range-thumb { width: 30px; height: 30px; border-radius: 50%; background: var(--sf-glass-strong); border: 1px solid var(--sf-ink-3); }
.sculpt-shape { width: min(320px, 70vw); aspect-ratio: 1; margin: 0 auto; }
.sculpt-shape canvas { width: 100%; height: 100%; display: block; }
.lab-settings { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 10px 26px; }

/* Frequency Painting */
.paint-canvas { aspect-ratio: 2.4 / 1; border-radius: 22px; border: 1px solid var(--sf-line); }
.paint-canvas + .scale { font-size: .7rem; letter-spacing: .1em; color: var(--sf-ink-3); }

/* Sound Space */
.spatial-map { aspect-ratio: 13 / 9; border-radius: 24px; border: 1px solid var(--sf-line); }

/* journeys: timeline */
.lab-timeline { display: flex; gap: 6px; align-items: flex-start; margin: 6px 0 14px; overflow-x: auto; padding: 8px 2px 4px; position: relative; }
.lab-timeline::before { content: ""; position: absolute; left: 10%; right: 10%; top: 24px; height: 1px; background: var(--sf-line); }
.tl-node { position: relative; flex: 1 1 0; min-width: 88px; display: flex; flex-direction: column; align-items: center; text-align: center; gap: 6px; }
.tl-dot { width: 12px; height: 12px; border-radius: 50%; background: var(--sf-line); border: 1px solid var(--sf-ink-3); margin-top: 10px; transition: transform .5s, background .5s, box-shadow .5s; }
.tl-node.now .tl-dot { background: var(--sf-accent); border-color: var(--sf-accent); transform: scale(1.4); box-shadow: 0 0 0 6px color-mix(in srgb, var(--sf-accent) 25%, transparent); }
.tl-time { font-size: .64rem; letter-spacing: .2em; color: var(--sf-ink-3); font-weight: 500; }
.tl-label { font-family: var(--sf-display); font-size: .95rem; color: var(--sf-ink); text-transform: capitalize; }
.tl-node.now .tl-label { color: var(--sf-accent); }

/* Build My Session: one question at a time */
.sess-wrap { text-align: center; padding: 6px 0 4px; }
.sess-progress { display: flex; justify-content: center; gap: 8px; margin-bottom: 14px; }
.sess-progress span { width: 22px; height: 3px; border-radius: 2px; background: var(--sf-line); }
.sess-progress span.done { background: var(--sf-accent); } .sess-progress span.now { background: var(--sf-ink); }
.sess-q { font-family: var(--sf-display); font-weight: 300; font-size: clamp(1.5rem, 3vw, 2.1rem); margin: 0 0 16px; letter-spacing: -.01em; }
.sess-options { display: flex; flex-wrap: wrap; justify-content: center; gap: 10px; margin-bottom: 12px; }
.sess-opt { all: unset; cursor: pointer; padding: 12px 22px; border-radius: 999px; border: 1px solid var(--sf-line); font-size: 1rem; color: var(--sf-ink-2); transition: all .25s; min-width: 44px; }
.sess-opt:hover { color: var(--sf-ink); border-color: var(--sf-ink-3); }
.sess-opt[aria-checked="true"] { background: var(--sf-ink); color: var(--bg); border-color: var(--sf-ink); }
.sess-opt:focus-visible { outline: 2px solid var(--sf-accent); outline-offset: 3px; }
.sess-summary { display: flex; flex-wrap: wrap; justify-content: center; gap: 8px; margin-bottom: 10px; }

/* history + premium note: quiet */
.lab-hist { max-width: 980px; margin: 0 auto; }
.lab-hist h3 { font-size: .7rem; letter-spacing: .24em; text-transform: uppercase; color: var(--sf-ink-3); font-weight: 500; }
.premium-note { max-width: 980px; margin: 26px auto 0; border-radius: 22px; background: transparent; border: 1px solid var(--sf-line); }
@media (max-width: 760px) { .lab-flagship { grid-template-columns: 1fr; text-align: center; padding: 22px; } .lab-flag-obj { max-width: 240px; } .lab-flag-body p { margin-left: auto; margin-right: auto; } .lab-hero { margin-top: -20px; padding: 44px 16px 26px; } }

.lab-hero .lab-eyebrow { border: 0; box-shadow: none; }
@media (max-width: 1500px) { .topbar .nav a { padding-left: 9px; padding-right: 9px; font-size: .88rem; } }
.disc-wrap .ab-obj, .disc-wrap .ab-obj[aria-pressed="true"] { border: 0; box-shadow: none; background: transparent; }
.disc-wrap .ab-obj .lbl, .disc-wrap .ab-obj[aria-pressed="true"] .lbl { position: absolute; left: 50%; top: 100%; transform: translate(-50%, 4px); width: auto; height: auto; background: transparent; color: var(--sf-ink); font-family: var(--sf-display); font-weight: 300; font-size: 1.6rem; letter-spacing: .1em; }
.disc-wrap .ab-obj:disabled { opacity: .35; }
.disc-wrap .ab-switch { margin-bottom: 44px; }

/* light mode: keep the app's original cool, airy light atmosphere — the stage is transparent over it, and the field carries more colour */
:root:not([data-theme="dark"]) .sf-stage, :root:not([data-theme="dark"]) .lab-hero { background: transparent; }
:root:not([data-theme="dark"]) .sf-stage::after, :root:not([data-theme="dark"]) .lab-hero::after { display: none; }
:root:not([data-theme="dark"]) .sf-hero .brand-eyebrow, :root:not([data-theme="dark"]) .field-desc { color: rgba(31,29,26,.55); }
:root:not([data-theme="dark"]) .sound-card { opacity: .78; } :root:not([data-theme="dark"]) .sound-card.active { opacity: 1; }
/* phone: the Focus panel is a scrollable sheet that always fits the screen */
@media (max-width: 640px) {
  .focus-screen .focus-panel { position: fixed; left: 8px; right: 8px; width: auto; transform: none; bottom: calc(8px + env(safe-area-inset-bottom, 0px)); top: auto; max-height: calc(100dvh - 72px - env(safe-area-inset-top, 0px) - env(safe-area-inset-bottom, 0px)); overflow-y: auto; -webkit-overflow-scrolling: touch; overscroll-behavior: contain; z-index: 7; padding-bottom: 22px; }
  .focus-screen .focus-panel-head { position: sticky; top: 0; z-index: 1; padding: 4px 0 6px; background: var(--sf-glass-strong); margin: -4px 0 4px; }
}
/* phone: A and B side by side, "No difference" underneath */
@media (max-width: 560px) { .disc-wrap [data-pick="same"] { order: 3; flex-basis: 100%; margin-top: 4px; } .disc-wrap [data-pick="A"], .disc-wrap [data-pick="B"] { flex: 1 1 40%; } }

.disc-wrap .ab-obj:disabled { opacity: .72; }

/* production cleanup: clear section boundaries on long views, quiet and consistent */
.section-block { max-width: 1060px; margin: 56px auto 0; padding-top: 28px; border-top: 1px solid var(--sf-line); }
.section-block > .row-title:first-child { margin-top: 0; }
.two-tools.section-block { display: block; }
.two-tools.section-block .two-tool { display: inline-flex; flex-direction: column; vertical-align: top; width: min(100%, 420px); margin: 0 14px 14px 0; }
@media (max-width: 640px) { .two-tools.section-block .two-tool { width: 100%; margin-right: 0; } }
.lab-hist-empty { max-width: 980px; margin: 0 auto; }
.lab-hist > div[hidden] { display: none; }

/* optional account UI (inert unless cloud is configured) */
.acct-pill { white-space: nowrap; }
#acct-sheet { position: fixed; inset: 0; z-index: 70; background: rgba(5,7,12,.55); backdrop-filter: blur(6px); display: grid; place-items: center; padding: 18px; }
#acct-sheet[hidden] { display: none; }
.acct-card { width: min(460px, 94vw); border-radius: 24px; padding: 20px 22px; background: var(--sf-glass-strong); border: 1px solid var(--sf-line); box-shadow: 0 30px 80px rgba(0,0,0,.4); }
.acct-card h2 { font-family: var(--sf-display); font-weight: 300; margin: 4px 0 6px; }
.acct-card #acct-close { float: right; }
.acct-row { display: flex; gap: 8px; margin: 10px 0; }
.acct-row.wrap { flex-wrap: wrap; }
.acct-row input { flex: 1; min-width: 150px; padding: 10px 14px; border-radius: 999px; border: 1px solid var(--sf-line); background: transparent; color: var(--sf-ink); font: inherit; }
.acct-card .danger { color: #d66; }
#acct-sync { color: var(--sf-ink-2); }