/* ============================================================
   SIZONIC = Sound, Reimagined.
   Premium Music / Audio Technology Design System
   ============================================================ */

:root {
  --black: #050609;
  --midnight: #0B1020;
  --coral: #FF5A5F;
  --orange: #FF8A3D;
  --violet: #7357FF;
  --cyan: #42E8E0;
  --white: #F7F7F4;
  --graphite: #20232B;
  --muted: rgba(247, 247, 244, 0.58);
  --line: rgba(247, 247, 244, 0.08);
  --line-strong: rgba(247, 247, 244, 0.14);

  --font-display: "Sora", system-ui, sans-serif;
  --font-body: "Manrope", system-ui, sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, monospace;

  --radius: 2px;
  --header-h: 72px;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --max: 1180px;
}

*, *::before, *::after { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  background: var(--black);
}

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 1.05rem;
  line-height: 1.6;
  color: var(--white);
  background:
    radial-gradient(1200px 600px at 80% -10%, rgba(255, 90, 95, 0.09), transparent 55%),
    radial-gradient(900px 500px at 10% 20%, rgba(115, 87, 255, 0.07), transparent 50%),
    var(--black);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

img, svg { display: block; max-width: 100%; }
button, input { font: inherit; color: inherit; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; margin: 0; padding: 0; }
h1, h2, h3 { font-family: var(--font-display); font-weight: 600; line-height: 1.05; letter-spacing: -0.03em; margin: 0; }
p { margin: 0; }

.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0;
}

.skip-link {
  position: absolute; left: 1rem; top: -100px; z-index: 1000;
  background: var(--coral); color: var(--black); padding: 0.6rem 1rem;
  transition: top 0.2s;
}
.skip-link:focus { top: 1rem; }

.container {
  width: min(100% - 2.5rem, var(--max));
  margin-inline: auto;
}

.text-accent {
  background: linear-gradient(105deg, var(--coral), var(--orange) 55%, #ffb087);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--cyan);
  margin-bottom: 1.25rem;
}

.section {
  padding: clamp(5rem, 10vw, 8.5rem) 0;
  position: relative;
}

.section__title {
  font-size: clamp(2.1rem, 4.8vw, 3.6rem);
  max-width: 16ch;
  margin-bottom: 2.5rem;
}

[data-reveal] {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.9s var(--ease), transform 0.9s var(--ease);
}
[data-reveal].is-visible {
  opacity: 1;
  transform: none;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  min-height: 48px;
  padding: 0.85rem 1.4rem;
  border-radius: 999px;
  border: 1px solid transparent;
  font-family: var(--font-display);
  font-size: 0.92rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  cursor: pointer;
  transition: transform 0.25s var(--ease), background 0.25s, border-color 0.25s, box-shadow 0.25s;
}
.btn--sm { min-height: 42px; padding: 0.65rem 1.1rem; font-size: 0.85rem; }
.btn--primary {
  background: linear-gradient(120deg, var(--coral), var(--orange));
  color: #1a0a0a;
  box-shadow: 0 0 0 0 rgba(255, 90, 95, 0.35);
}
.btn--primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 10px 30px rgba(255, 90, 95, 0.25);
}
.btn--ghost {
  background: transparent;
  border-color: var(--line-strong);
  color: var(--white);
}
.btn--ghost:hover {
  border-color: rgba(66, 232, 224, 0.45);
  background: rgba(66, 232, 224, 0.06);
}

.hero__ctas { display: flex; flex-wrap: wrap; gap: 0.85rem; }

/* ---------- Audio Dock ---------- */
.audio-dock {
  position: fixed;
  right: 1.25rem;
  bottom: 1.25rem;
  z-index: 90;
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  padding: 0.85rem 1rem;
  background: rgba(11, 16, 32, 0.88);
  border: 1px solid var(--line-strong);
  backdrop-filter: blur(16px);
  border-radius: 16px;
  min-width: 240px;
  transform: translateY(120%);
  opacity: 0;
  pointer-events: none;
  transition: transform 0.4s var(--ease), opacity 0.4s;
}
.audio-dock.is-open {
  transform: none;
  opacity: 1;
  pointer-events: auto;
}
.audio-dock__status {
  display: flex; align-items: center; gap: 0.55rem;
  font-family: var(--font-mono); font-size: 0.68rem; letter-spacing: 0.12em;
  color: var(--muted);
}
.audio-dock__pulse {
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--graphite); box-shadow: 0 0 0 0 rgba(255,90,95,0);
}
.audio-dock.is-live .audio-dock__pulse {
  background: var(--coral);
  animation: pulse 1.6s ease-in-out infinite;
}
.audio-dock.is-live .audio-dock__status { color: var(--white); }
.audio-dock__controls { display: flex; align-items: center; gap: 0.4rem; flex-wrap: wrap; }
.audio-btn {
  width: 34px; height: 34px; border-radius: 50%;
  border: 1px solid var(--line-strong); background: transparent;
  display: grid; place-items: center; cursor: pointer;
}
.audio-btn:hover:not(:disabled) { border-color: var(--coral); color: var(--coral); }
.audio-btn:disabled { opacity: 0.35; cursor: not-allowed; }
.audio-vol { flex: 1; min-width: 80px; display: flex; }
.audio-vol input {
  width: 100%; accent-color: var(--coral); cursor: pointer;
}
.audio-spatial {
  border: 1px solid var(--line-strong); background: transparent;
  border-radius: 999px; padding: 0.35rem 0.65rem;
  font-family: var(--font-mono); font-size: 0.62rem; letter-spacing: 0.08em;
  text-transform: uppercase; cursor: pointer;
}
.audio-spatial span { color: var(--cyan); margin-left: 0.25rem; }
.audio-spatial[aria-pressed="false"] span { color: var(--muted); }

@keyframes pulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(255,90,95,0.45); }
  50% { box-shadow: 0 0 0 8px rgba(255,90,95,0); }
}

/* ---------- Header ---------- */
.site-header {
  position: fixed; inset: 0 0 auto 0; z-index: 80;
  height: var(--header-h);
  transition: background 0.3s, border-color 0.3s, backdrop-filter 0.3s;
  border-bottom: 1px solid transparent;
}
.site-header.is-scrolled {
  background: rgba(5, 6, 9, 0.78);
  backdrop-filter: blur(18px);
  border-bottom-color: var(--line);
}
.nav {
  width: min(100% - 2rem, 1280px);
  margin: 0 auto;
  height: 100%;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 1rem;
}
.nav__brand {
  display: inline-flex; align-items: center; gap: 0.7rem;
  justify-self: start;
}
.nav__wordmark {
  font-family: var(--font-display);
  font-weight: 700; font-size: 1.15rem; letter-spacing: -0.04em;
}
.nav__links {
  display: flex; gap: 1.5rem;
  font-size: 0.9rem; color: var(--muted);
}
.nav__links a:hover { color: var(--white); }
.nav__actions {
  justify-self: end;
  display: flex; align-items: center; gap: 0.75rem;
}
.nav__audio-icon {
  width: 40px; height: 40px; border-radius: 50%;
  border: 1px solid var(--line-strong); background: rgba(255,255,255,0.02);
  display: grid; place-items: center; cursor: pointer; color: var(--white);
}
.nav__audio-icon:hover, .nav__audio-icon.is-active {
  border-color: rgba(255,90,95,0.5); color: var(--coral);
}
.nav__toggle {
  display: none; width: 42px; height: 42px;
  border: 1px solid var(--line-strong); background: transparent;
  border-radius: 10px; flex-direction: column; justify-content: center; align-items: center; gap: 6px;
  cursor: pointer;
}
.nav__toggle span {
  display: block; width: 18px; height: 1.5px; background: var(--white);
  transition: transform 0.25s;
}
.mobile-nav {
  display: none;
  flex-direction: column; gap: 1rem;
  padding: 1rem 1.25rem 1.5rem;
  background: rgba(5,6,9,0.96); border-bottom: 1px solid var(--line);
}
.mobile-nav a { color: var(--muted); font-size: 1.05rem; }
.mobile-nav a:hover { color: var(--white); }

/* ---------- Hero ---------- */
.hero {
  min-height: 100svh;
  padding: calc(var(--header-h) + 2rem) 0 3rem;
  position: relative;
  display: flex; flex-direction: column; justify-content: center;
}
.hero__atmosphere {
  position: absolute; inset: 0; pointer-events: none;
  background:
    radial-gradient(ellipse 50% 40% at 70% 45%, rgba(255,90,95,0.12), transparent 60%),
    radial-gradient(ellipse 35% 30% at 65% 55%, rgba(66,232,224,0.08), transparent 55%),
    linear-gradient(180deg, transparent 70%, var(--black));
}
.hero__grid {
  width: min(100% - 2.5rem, 1280px);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1.05fr;
  gap: clamp(2rem, 4vw, 4rem);
  align-items: center;
  position: relative; z-index: 1;
}
.hero__brand {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  margin-bottom: 1.75rem;
}
.hero__brand strong {
  display: block;
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 3.5vw, 2.4rem);
  font-weight: 700;
  letter-spacing: -0.045em;
  line-height: 1;
}
.hero__brand em {
  display: block;
  margin-top: 0.35rem;
  font-family: var(--font-mono);
  font-style: normal;
  font-size: 0.68rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--coral);
}
.hero__title {
  font-size: clamp(3rem, 7vw, 5.4rem);
  font-weight: 700;
  margin-bottom: 1.4rem;
}
.hero__lede {
  max-width: 38ch;
  color: var(--muted);
  font-size: 1.08rem;
  margin-bottom: 2rem;
}
.hero__field {
  position: relative;
  aspect-ratio: 1;
  max-height: min(72vh, 620px);
  border-radius: 50%;
  isolation: isolate;
}
#sonicFieldCanvas {
  width: 100%; height: 100%;
  border-radius: 50%;
  display: block;
}
.field-labels {
  position: absolute; inset: 0; pointer-events: none;
}
.field-label {
  position: absolute;
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
  display: flex; flex-direction: column; gap: 0.15rem;
}
.field-label strong { color: var(--white); font-weight: 500; font-size: 0.78rem; letter-spacing: 0; }
.field-label[data-k="freq"] { top: 8%; left: 8%; }
.field-label[data-k="amp"] { top: 8%; right: 8%; text-align: right; }
.field-label[data-k="spatial"] { bottom: 14%; left: 6%; }
.field-label[data-k="res"] { bottom: 14%; right: 6%; text-align: right; color: var(--cyan); }
.field-label[data-k="res"] strong { color: var(--cyan); }

.band-hints {
  position: absolute; inset: 18% 18%; pointer-events: none;
  font-family: var(--font-mono); font-size: 0.58rem; letter-spacing: 0.16em;
  color: rgba(247,247,244,0.35); text-transform: uppercase;
}
.band-hints span { position: absolute; opacity: 0; transition: opacity 0.3s; }
.band-hints.is-visible span { opacity: 1; }
.band-hints [data-band="sub"] { bottom: 0; left: 50%; transform: translateX(-50%); }
.band-hints [data-band="low"] { left: 0; top: 50%; }
.band-hints [data-band="mid"] { top: 0; left: 50%; transform: translateX(-50%); color: var(--orange); }
.band-hints [data-band="high"] { right: 0; top: 50%; color: var(--cyan); }

.play-orb {
  position: absolute; left: 50%; top: 50%;
  transform: translate(-50%, -50%);
  width: 140px; height: 140px;
  border: 0; background: transparent; cursor: pointer;
  border-radius: 50%; z-index: 3;
}
.play-orb__ring {
  position: absolute; inset: 0; border-radius: 50%;
  border: 1px solid rgba(255,90,95,0.45);
  animation: orbRing 3.2s ease-in-out infinite;
}
.play-orb__core {
  position: absolute; inset: 12px; border-radius: 50%;
  background: rgba(5,6,9,0.72);
  border: 1px solid rgba(255,138,61,0.35);
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 0.35rem;
  color: var(--white);
  backdrop-filter: blur(8px);
  transition: border-color 0.25s, background 0.25s, transform 0.25s;
}
.play-orb__core span {
  font-family: var(--font-mono); font-size: 0.55rem; letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--muted);
}
.play-orb:hover .play-orb__core {
  border-color: var(--coral);
  background: rgba(255,90,95,0.12);
  transform: scale(1.03);
}
.play-orb.is-playing .play-orb__core svg { display: none; }
.play-orb.is-playing .play-orb__core::after {
  content: "Playing";
  font-family: var(--font-mono); font-size: 0.7rem; letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--coral);
}
.play-orb.is-playing .play-orb__core span:last-child { display: none; }

@keyframes orbRing {
  0%, 100% { transform: scale(1); opacity: 0.7; }
  50% { transform: scale(1.08); opacity: 0.25; }
}

.hero__scroll {
  position: absolute; bottom: 1.5rem; left: 50%; transform: translateX(-50%);
  display: flex; flex-direction: column; align-items: center; gap: 0.6rem;
  font-family: var(--font-mono); font-size: 0.62rem; letter-spacing: 0.16em;
  text-transform: uppercase; color: var(--muted);
}
.hero__scroll-line {
  width: 1px; height: 42px;
  background: linear-gradient(to bottom, var(--coral), transparent);
  animation: scrollLine 2s ease-in-out infinite;
}
@keyframes scrollLine {
  0%, 100% { opacity: 0.3; transform: scaleY(0.7); }
  50% { opacity: 1; transform: scaleY(1); }
}

/* ---------- Editorial / Sound as Data ---------- */
.section--editorial .editorial-quote {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 3.2vw, 2.35rem);
  font-weight: 500;
  line-height: 1.35;
  letter-spacing: -0.02em;
  color: rgba(247,247,244,0.88);
  border: 0; margin: 0 0 3rem; padding: 0;
  max-width: 22ch;
}
.editorial-quote em {
  font-style: normal;
  color: var(--orange);
}
.transform-chain {
  display: flex; flex-direction: column; align-items: flex-start; gap: 0.35rem;
  margin-bottom: 2.5rem;
}
.transform-step {
  font-family: var(--font-mono);
  font-size: 0.85rem; letter-spacing: 0.14em; text-transform: uppercase;
  padding: 0.55rem 1rem;
  border-left: 2px solid var(--line-strong);
  color: var(--muted);
  transition: color 0.4s, border-color 0.4s, background 0.4s;
}
.transform-step.is-active {
  color: var(--white);
  border-color: var(--coral);
  background: linear-gradient(90deg, rgba(255,90,95,0.12), transparent);
}
.transform-arrow { color: var(--graphite); padding-left: 1.1rem; font-size: 0.85rem; }
.scroll-wave {
  width: 100%; display: block; opacity: 0.85;
}

/* ---------- Diff cards ---------- */
.diff-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
}
.diff-card {
  padding: 1.6rem 1.4rem 1.8rem;
  border-top: 1px solid var(--line-strong);
  background: linear-gradient(180deg, rgba(32,35,43,0.35), transparent);
  transition: border-color 0.3s, background 0.3s;
}
.diff-card:hover {
  border-color: rgba(255,90,95,0.45);
  background: linear-gradient(180deg, rgba(255,90,95,0.08), transparent);
}
.diff-card__icon { width: 48px; height: 48px; color: var(--orange); margin-bottom: 1.5rem; }
.diff-card__icon svg { width: 100%; height: 100%; }
.diff-card__num {
  font-family: var(--font-mono); font-size: 0.7rem; letter-spacing: 0.14em;
  color: var(--muted); margin-bottom: 0.75rem;
}
.diff-card h3 {
  font-size: 1.35rem; margin-bottom: 0.65rem; text-transform: uppercase;
  letter-spacing: 0.04em;
}
.diff-card p { color: var(--muted); font-size: 0.95rem; }

/* ---------- Spectrum ---------- */
.section--spectrum { background: linear-gradient(180deg, transparent, rgba(11,16,32,0.65), transparent); }
.spectrum-stage {
  position: relative;
  min-height: 420px;
  border: 1px solid var(--line);
  background: radial-gradient(ellipse at center, rgba(115,87,255,0.08), transparent 60%), var(--midnight);
  overflow: hidden;
}
#spectrumCanvas { width: 100%; height: 420px; display: block; }
.spectrum-bands {
  position: absolute; bottom: 1rem; left: 1.25rem; right: 12rem;
  display: flex; justify-content: space-between;
  font-family: var(--font-mono); font-size: 0.65rem; letter-spacing: 0.16em;
  color: var(--muted); text-transform: uppercase; pointer-events: none;
}
.sonic-profile {
  position: absolute; top: 1.25rem; right: 1.25rem;
  width: 200px; padding: 1rem;
  background: rgba(5,6,9,0.72); border: 1px solid var(--line-strong);
  backdrop-filter: blur(10px);
}
.sonic-profile h3 {
  font-family: var(--font-mono); font-size: 0.65rem; letter-spacing: 0.14em;
  text-transform: uppercase; font-weight: 500; margin-bottom: 0.9rem; color: var(--cyan);
}
.profile-row {
  display: grid; grid-template-columns: 70px 1fr; align-items: center; gap: 0.5rem;
  font-size: 0.75rem; margin-bottom: 0.55rem; color: var(--muted);
}
.profile-row strong { font-family: var(--font-mono); color: var(--white); font-weight: 500; }
.bar {
  height: 4px; background: rgba(247,247,244,0.08); border-radius: 2px; overflow: hidden;
}
.bar i {
  display: block; height: 100%; width: var(--w);
  background: linear-gradient(90deg, var(--coral), var(--orange));
  border-radius: 2px;
}

/* ---------- Tech grid ---------- */
.tech-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}
.tech-card {
  background: var(--black);
  padding: 1.8rem 1.5rem 2rem;
  transition: background 0.3s;
}
.tech-card:hover { background: #0a0c12; }
.tech-card__num {
  font-family: var(--font-mono); font-size: 0.7rem; color: var(--coral);
  letter-spacing: 0.12em; display: block; margin-bottom: 1.2rem;
}
.tech-card h3 { font-size: 1.25rem; margin-bottom: 0.7rem; }
.tech-card p { color: var(--muted); font-size: 0.95rem; }

/* ---------- Spatial ---------- */
.section--spatial { background: var(--midnight); }
.spatial-stage {
  position: relative;
  aspect-ratio: 16 / 9;
  max-height: 560px;
  border: 1px solid var(--line);
  overflow: hidden;
  background: radial-gradient(circle at 50% 50%, rgba(66,232,224,0.06), transparent 45%), #070a12;
}
#spatialCanvas { width: 100%; height: 100%; display: block; }
.spatial-labels .sl {
  position: absolute;
  font-family: var(--font-mono); font-size: 0.62rem; letter-spacing: 0.14em;
  text-transform: uppercase; color: var(--muted); pointer-events: none;
}
.sl--source { left: 50%; top: 50%; transform: translate(-50%, -120%); color: var(--coral); }
.sl--left { left: 8%; top: 50%; }
.sl--right { right: 8%; top: 50%; }
.sl--front { left: 50%; top: 10%; transform: translateX(-50%); }
.sl--back { left: 50%; bottom: 10%; transform: translateX(-50%); }
.sl--above { left: 62%; top: 22%; color: var(--cyan); }
.sl--below { left: 32%; bottom: 22%; color: var(--violet); }
.spatial-meta {
  position: absolute; bottom: 1rem; left: 1rem;
  display: flex; gap: 1rem;
  font-family: var(--font-mono); font-size: 0.58rem; letter-spacing: 0.12em;
  text-transform: uppercase; color: rgba(247,247,244,0.35);
}

/* ---------- Engine ---------- */
.engine-pipeline {
  position: relative;
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 0.5rem;
  align-items: stretch;
}
.engine-stage {
  padding: 1.4rem 1rem 1.5rem;
  border: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(32,35,43,0.4), transparent);
  position: relative; z-index: 1;
  transition: border-color 0.35s, box-shadow 0.35s;
}
.engine-stage.is-lit {
  border-color: rgba(255,90,95,0.5);
  box-shadow: 0 0 24px rgba(255,90,95,0.12);
}
.engine-stage__tag {
  font-family: var(--font-mono); font-size: 0.62rem; letter-spacing: 0.14em;
  text-transform: uppercase; color: var(--cyan); display: block; margin-bottom: 0.8rem;
}
.engine-stage h3 { font-size: 1.05rem; margin-bottom: 0.55rem; }
.engine-stage p { color: var(--muted); font-size: 0.88rem; }
.engine-flow { display: none; }
.engine-signal {
  position: absolute; top: 0; left: 0; width: 8px; height: 8px; border-radius: 50%;
  background: var(--coral); box-shadow: 0 0 16px var(--coral);
  opacity: 0; pointer-events: none; z-index: 2;
}

/* ---------- Workspace ---------- */
.section--workspace { background: linear-gradient(180deg, transparent, rgba(11,16,32,0.5), transparent); }
.workspace {
  position: relative;
  border: 1px solid var(--line-strong);
  background: #080a10;
  padding: 1rem 1rem 1.25rem;
  overflow: hidden;
}
.workspace__chrome {
  display: flex; flex-wrap: wrap; justify-content: space-between; gap: 1rem;
  margin-bottom: 1rem; padding-bottom: 0.85rem; border-bottom: 1px solid var(--line);
}
.workspace__transport { display: flex; flex-wrap: wrap; gap: 0.4rem; }
.ws-ctrl {
  font-family: var(--font-mono); font-size: 0.65rem; letter-spacing: 0.1em;
  text-transform: uppercase; padding: 0.45rem 0.75rem;
  border: 1px solid var(--line-strong); background: transparent; cursor: pointer;
  border-radius: 4px;
}
.ws-ctrl:hover, .ws-ctrl[aria-pressed="true"], .ws-ctrl.is-active {
  border-color: var(--coral); color: var(--coral);
}
.workspace__markers {
  position: relative; flex: 1; min-width: 200px; height: 28px;
}
.workspace__markers span {
  position: absolute; left: var(--p); top: 0;
  font-family: var(--font-mono); font-size: 0.58rem; letter-spacing: 0.1em;
  text-transform: uppercase; color: var(--muted);
  transform: translateX(-50%);
}
.tracks { display: flex; flex-direction: column; gap: 0.45rem; }
.track {
  display: grid; grid-template-columns: 88px 1fr auto; gap: 0.75rem; align-items: center;
  padding: 0.35rem 0.5rem; background: rgba(255,255,255,0.015);
  border-left: 2px solid transparent;
}
.track:nth-child(1) { border-left-color: var(--coral); }
.track:nth-child(2) { border-left-color: var(--orange); }
.track:nth-child(3) { border-left-color: var(--violet); }
.track:nth-child(4) { border-left-color: var(--cyan); }
.track:nth-child(5) { border-left-color: #ff8fab; }
.track:nth-child(6) { border-left-color: #8ec5ff; }
.track__name {
  font-family: var(--font-mono); font-size: 0.68rem; letter-spacing: 0.08em;
  text-transform: uppercase; color: var(--muted);
}
.track__wave { width: 100%; display: block; }
.track__ops { display: flex; gap: 0.25rem; }
.track__ops button {
  width: 28px; height: 28px; border: 1px solid var(--line); background: transparent;
  font-family: var(--font-mono); font-size: 0.65rem; cursor: pointer; border-radius: 3px;
}
.track__ops button.is-on { border-color: var(--coral); color: var(--coral); }
.workspace__playhead {
  position: absolute; top: 4.5rem; bottom: 1.25rem; width: 1px;
  background: var(--coral); box-shadow: 0 0 10px var(--coral);
  left: calc(88px + 1.75rem); opacity: 0; pointer-events: none;
}
.workspace.is-playing .workspace__playhead { opacity: 1; }

/* ---------- Discovery ---------- */
.discovery { display: grid; gap: 2.5rem; }
.feel-sliders {
  display: grid; grid-template-columns: repeat(5, 1fr); gap: 1rem;
}
.feel span {
  display: block; font-family: var(--font-mono); font-size: 0.65rem;
  letter-spacing: 0.14em; text-transform: uppercase; color: var(--muted); margin-bottom: 0.65rem;
}
.dots { display: flex; gap: 0.4rem; }
.dots i {
  width: 10px; height: 10px; border-radius: 50%;
  border: 1px solid var(--line-strong); background: transparent;
}
.dots[data-value="5"] i,
.dots[data-value="4"] i:nth-child(-n+4),
.dots[data-value="3"] i:nth-child(-n+3),
.dots[data-value="2"] i:nth-child(-n+2),
.dots[data-value="1"] i:nth-child(1) {
  background: var(--orange); border-color: var(--orange);
}
.sound-collection {
  display: grid; grid-template-columns: repeat(6, 1fr); gap: 0.85rem;
}
.sonic-thumb {
  border: 1px solid var(--line); background: var(--midnight);
  padding: 0.75rem; cursor: pointer; text-align: left;
  transition: border-color 0.25s, transform 0.25s;
}
.sonic-thumb:hover, .sonic-thumb.is-active {
  border-color: rgba(255,90,95,0.55); transform: translateY(-2px);
}
.sonic-thumb canvas { width: 100%; height: auto; margin-bottom: 0.65rem; }
.sonic-thumb span {
  font-family: var(--font-mono); font-size: 0.68rem; letter-spacing: 0.1em;
  text-transform: uppercase;
}

/* ---------- Analytics ---------- */
.section--analytics { background: rgba(11,16,32,0.4); }
.metrics {
  display: grid; grid-template-columns: repeat(5, 1fr); gap: 1px;
  background: var(--line); border: 1px solid var(--line); margin-bottom: 1.25rem;
}
.metric {
  background: var(--black); padding: 1.25rem 1rem;
  display: flex; flex-direction: column; gap: 0.45rem;
}
.metric span {
  font-family: var(--font-mono); font-size: 0.62rem; letter-spacing: 0.12em;
  text-transform: uppercase; color: var(--muted);
}
.metric strong {
  font-family: var(--font-display); font-size: 1.55rem; font-weight: 600;
  letter-spacing: -0.03em;
}
.viz-grid {
  display: grid; grid-template-columns: repeat(2, 1fr); gap: 1rem;
}
.viz-panel {
  border: 1px solid var(--line); padding: 1rem; background: #080a10;
}
.viz-panel h3 {
  font-family: var(--font-mono); font-size: 0.65rem; letter-spacing: 0.12em;
  text-transform: uppercase; font-weight: 500; color: var(--cyan); margin-bottom: 0.75rem;
}
.viz-panel canvas { width: 100%; display: block; }

/* ---------- Creators ---------- */
.creators-grid {
  display: grid; grid-template-columns: repeat(5, 1fr); gap: 0.85rem;
}
.creator-card {
  border-top: 1px solid var(--line-strong);
  padding: 1rem 0.25rem 1.5rem;
}
.creator-viz { width: 100%; height: auto; margin-bottom: 1rem; opacity: 0.9; }
.creator-card h3 { font-size: 1.05rem; margin-bottom: 0.55rem; }
.creator-card p { color: var(--muted); font-size: 0.9rem; }

/* ---------- Future ---------- */
.section--future {
  min-height: 80vh; display: flex; align-items: center;
  overflow: hidden;
}
.future-field {
  position: absolute; inset: 0; width: 100%; height: 100%; opacity: 0.55;
}
.future-content { position: relative; z-index: 1; }
.future-title {
  font-size: clamp(2.2rem, 5.5vw, 4.2rem);
  max-width: 16ch; margin-bottom: 2.5rem;
}
.future-path {
  display: flex; flex-wrap: wrap; align-items: center; gap: 0.75rem 1rem;
  font-family: var(--font-mono); font-size: 0.75rem; letter-spacing: 0.16em;
  text-transform: uppercase; color: var(--muted);
}
.future-path span:nth-child(odd) {
  padding: 0.45rem 0.85rem; border: 1px solid var(--line-strong);
}
.future-path span:last-child {
  border-color: rgba(255,90,95,0.5); color: var(--coral);
}

/* ---------- Compare ---------- */
.compare {
  display: grid; grid-template-columns: 1fr 1.35fr; gap: 1.5rem;
}
.compare__col {
  padding: 2rem 1.75rem;
  border: 1px solid var(--line);
}
.compare__col--trad {
  background: rgba(32,35,43,0.25); color: var(--muted);
}
.compare__col--trad h3 { color: var(--muted); font-size: 1.1rem; margin-bottom: 1.25rem; }
.compare__col--trad li {
  padding: 0.7rem 0; border-bottom: 1px solid var(--line); font-size: 1.05rem;
}
.compare__col--sizonic {
  background: linear-gradient(145deg, rgba(255,90,95,0.12), rgba(11,16,32,0.9));
  border-color: rgba(255,90,95,0.35);
  box-shadow: 0 20px 60px rgba(255,90,95,0.08);
  transform: scale(1.02);
}
.compare__col--sizonic h3 {
  font-size: 1.6rem; margin-bottom: 1.25rem;
  background: linear-gradient(105deg, var(--coral), var(--orange));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.compare__col--sizonic li {
  padding: 0.85rem 0; border-bottom: 1px solid rgba(255,90,95,0.18);
  font-size: 1.2rem; font-family: var(--font-display); font-weight: 500;
}

/* ---------- Lab ---------- */
.section--lab { background: var(--midnight); }
.lab-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem;
}
.lab-card {
  position: relative; overflow: hidden;
  padding: 2rem 1.5rem; border: 1px solid var(--line-strong);
  background: rgba(5,6,9,0.55); min-height: 240px;
}
.lab-card__grid {
  position: absolute; inset: 0; opacity: 0.25; pointer-events: none;
  background-image:
    linear-gradient(rgba(66,232,224,0.25) 1px, transparent 1px),
    linear-gradient(90deg, rgba(66,232,224,0.25) 1px, transparent 1px);
  background-size: 24px 24px;
  mask-image: linear-gradient(180deg, #000, transparent 80%);
}
.lab-card h3 { position: relative; font-size: 1.3rem; margin-bottom: 0.75rem; }
.lab-card p { position: relative; color: var(--muted); }

/* ---------- Featured ---------- */
.featured-orb {
  position: relative;
  width: min(100%, 520px);
  aspect-ratio: 1;
  margin: 0 auto;
}
#featuredCanvas { width: 100%; height: 100%; display: block; }
.featured-play {
  position: absolute; left: 50%; top: 50%; transform: translate(-50%, -50%);
  width: 110px; height: 110px; border-radius: 50%;
  border: 1px solid rgba(255,138,61,0.45);
  background: rgba(5,6,9,0.75); color: var(--white);
  font-family: var(--font-display); font-weight: 600; letter-spacing: 0.08em;
  text-transform: uppercase; font-size: 0.85rem; cursor: pointer;
  backdrop-filter: blur(8px); z-index: 2;
  transition: border-color 0.25s, transform 0.25s, background 0.25s;
}
.featured-play:hover {
  border-color: var(--coral); transform: translate(-50%, -50%) scale(1.05);
  background: rgba(255,90,95,0.15);
}
.featured-stats {
  position: absolute; inset: auto 0 8% 0;
  display: flex; justify-content: center; gap: 1.5rem;
  font-family: var(--font-mono); font-size: 0.62rem; letter-spacing: 0.1em;
  text-transform: uppercase; color: var(--muted); pointer-events: none;
}
.featured-stats div { display: flex; flex-direction: column; gap: 0.25rem; align-items: center; }
.featured-stats strong { color: var(--white); font-weight: 500; }

/* ---------- Statement ---------- */
.section--statement {
  min-height: 90vh; display: flex; align-items: center;
  background: radial-gradient(ellipse at center, rgba(255,90,95,0.08), transparent 55%);
}
.statement-wrap {
  position: relative; text-align: center;
  display: flex; flex-direction: column; align-items: center; gap: 2rem;
}
.statement-text {
  font-size: clamp(2.4rem, 6.5vw, 5rem);
  text-transform: uppercase; letter-spacing: -0.03em;
  max-width: 14ch; margin: 0 auto;
  transition: opacity 0.8s, transform 0.8s;
}
.statement-accent { color: var(--coral); }
#statementCanvas {
  position: absolute; inset: 0; width: 100%; height: 100%;
  opacity: 0; pointer-events: none; transition: opacity 1s;
}
.statement-wrap.is-morphed .statement-text { opacity: 0; transform: scale(0.92); }
.statement-wrap.is-morphed #statementCanvas { opacity: 1; }
.statement-logo {
  display: flex; flex-direction: column; align-items: center; gap: 0.75rem;
  opacity: 0; transform: translateY(20px);
  transition: opacity 0.8s 0.3s, transform 0.8s 0.3s;
}
.statement-logo span {
  font-family: var(--font-display); font-weight: 700; font-size: 1.5rem; letter-spacing: -0.04em;
}
.statement-wrap.is-morphed .statement-logo { opacity: 1; transform: none; }

/* ---------- CTA ---------- */
.section--cta {
  min-height: 70vh; display: flex; align-items: center; text-align: center;
  overflow: hidden;
}
.cta-field { position: absolute; inset: 0; width: 100%; height: 100%; opacity: 0.4; }
.cta-content { position: relative; z-index: 1; }
.cta-content .section__title { max-width: 18ch; margin-inline: auto; }
.cta-lede {
  max-width: 42ch; margin: 0 auto 2rem; color: var(--muted); font-size: 1.1rem;
}
.cta-content .hero__ctas { justify-content: center; }

/* ---------- Footer ---------- */
.site-footer {
  border-top: 1px solid var(--line);
  padding: 4rem 0 2rem;
  background: #040508;
}
.footer-top {
  display: grid; grid-template-columns: 1.2fr 2fr; gap: 3rem;
  margin-bottom: 3rem;
}
.footer-tagline {
  font-family: var(--font-mono); font-size: 0.72rem; letter-spacing: 0.16em;
  text-transform: uppercase; color: var(--coral); margin: 1rem 0 0.85rem;
}
.footer-supporting { color: var(--muted); max-width: 34ch; font-size: 0.95rem; }
.footer-cols {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.5rem;
}
.footer-cols h3 {
  font-family: var(--font-mono); font-size: 0.68rem; letter-spacing: 0.14em;
  text-transform: uppercase; font-weight: 500; color: var(--white); margin-bottom: 1rem;
}
.footer-cols a {
  display: block; color: var(--muted); font-size: 0.92rem; padding: 0.28rem 0;
}
.footer-cols a:hover { color: var(--orange); }
.footer-bottom {
  display: flex; justify-content: space-between; align-items: center; gap: 1rem; flex-wrap: wrap;
  padding-top: 1.5rem; border-top: 1px solid var(--line);
  font-size: 0.85rem; color: var(--muted);
}
.footer-sound {
  border: 1px solid var(--line-strong); background: transparent;
  padding: 0.55rem 0.9rem; border-radius: 999px; cursor: pointer;
  font-family: var(--font-mono); font-size: 0.65rem; letter-spacing: 0.1em;
  text-transform: uppercase;
}
.footer-sound strong { color: var(--muted); margin-left: 0.35rem; }
.footer-sound[aria-pressed="true"] strong { color: var(--coral); }

/* ---------- Responsive ---------- */
@media (max-width: 1100px) {
  .diff-grid, .creators-grid { grid-template-columns: repeat(2, 1fr); }
  .feel-sliders, .sound-collection { grid-template-columns: repeat(3, 1fr); }
  .engine-pipeline { grid-template-columns: 1fr; gap: 0.75rem; }
  .engine-stage { border-left: 2px solid var(--line-strong); }
  .metrics { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 900px) {
  .nav__links { display: none; }
  .nav { grid-template-columns: 1fr auto; }
  .nav__toggle { display: flex; }
  .nav__actions .btn--sm { display: none; }
  .mobile-nav:not([hidden]) { display: flex; }
  .hero__grid { grid-template-columns: 1fr; gap: 2.5rem; }
  .hero__field { max-height: 420px; margin: 0 auto; width: min(100%, 420px); }
  .field-label { display: none; }
  .tech-grid { grid-template-columns: 1fr 1fr; }
  .lab-grid, .compare, .footer-top, .footer-cols, .viz-grid { grid-template-columns: 1fr 1fr; }
  .spatial-stage { aspect-ratio: 1; }
  .play-orb { width: 120px; height: 120px; }
}

@media (max-width: 640px) {
  .diff-grid, .tech-grid, .lab-grid, .creators-grid,
  .feel-sliders, .sound-collection, .metrics, .compare,
  .footer-cols, .viz-grid, .footer-top { grid-template-columns: 1fr; }
  .sonic-profile { position: static; width: auto; margin: 1rem; }
  #spectrumCanvas { height: 280px; }
  .spectrum-bands { right: 1rem; }
  .audio-dock { left: 1rem; right: 1rem; min-width: 0; }
  .featured-stats { flex-direction: column; gap: 0.5rem; }
  .compare__col--sizonic { transform: none; }
  .hero__title { font-size: clamp(2.6rem, 12vw, 3.4rem); }
  .track { grid-template-columns: 72px 1fr; }
  .track__ops { display: none; }
}

/* ---------- Reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  [data-reveal] { opacity: 1; transform: none; }
  .play-orb__ring, .hero__scroll-line, .audio-dock__pulse { animation: none !important; }
}