/* ============================================================
   Trace — global tokens & reset
   ============================================================ */
*, *::before, *::after { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  background: var(--bg, #f6f4ef);
  color: var(--ink, #111111);
  font-family: var(--font-ui, 'Inter', system-ui, sans-serif);
  font-size: 15px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

:root {
  --bg: #f6f4ef;
  --ink: #111111;
  --ink-soft: #555;
  --line: rgba(17,17,17,0.12);
  --line-soft: rgba(17,17,17,0.06);
  --accent: oklch(0.62 0.16 28);
  --demo-ink: #0a0a0a;
  --radius: 6px;
  --font-display: 'Instrument Serif', 'Iowan Old Style', Georgia, serif;
  --font-ui: 'Inter', system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', 'SF Mono', ui-monospace, monospace;
}

button { font-family: inherit; cursor: pointer; border: none; background: none; color: inherit; }
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }

kbd {
  font-family: var(--font-mono);
  font-size: 10px;
  padding: 2px 5px;
  border: 1px solid var(--line);
  border-radius: 3px;
  background: rgba(255,255,255,0.6);
  line-height: 1;
}

/* ============================================================
   Shared buttons
   ============================================================ */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 10px 16px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 500;
  letter-spacing: -0.01em;
  transition: background .15s ease, color .15s ease, transform .1s ease;
}
.btn-primary { background: var(--ink); color: var(--bg); }
.btn-primary:hover { background: #000; }
.btn-primary:disabled { opacity: 0.4; cursor: not-allowed; }
.btn-lg { padding: 14px 22px; font-size: 15px; }
.btn-ghost { background: transparent; color: var(--ink-soft); }
.btn-ghost:hover { color: var(--ink); }

/* ============================================================
   Landing — nav
   ============================================================ */
.landing { min-height: 100vh; }

.nav {
  position: sticky; top: 0; z-index: 10;
  background: color-mix(in srgb, var(--bg) 85%, transparent);
  backdrop-filter: saturate(150%) blur(8px);
  -webkit-backdrop-filter: saturate(150%) blur(8px);
  border-bottom: 1px solid var(--line-soft);
}
.nav-inner {
  max-width: 1280px; margin: 0 auto;
  padding: 14px 32px;
  display: flex; align-items: center; gap: 32px;
}
.brand { display: inline-flex; align-items: center; gap: 8px; font-weight: 500; }
.brand-mark { display: inline-flex; }
.brand-name { font-family: var(--font-display); font-size: 20px; letter-spacing: -0.01em; }
.nav-links { display: flex; gap: 28px; margin-left: auto; font-size: 14px; color: var(--ink-soft); }
.nav-links a:hover { color: var(--ink); }

/* ============================================================
   Hero
   ============================================================ */
.hero {
  max-width: 1280px; margin: 0 auto;
  padding: 80px 32px 80px;
  display: grid; grid-template-columns: 1fr 1.1fr;
  gap: 64px; align-items: center;
}
.eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 12px; letter-spacing: 0.04em; text-transform: uppercase;
  color: var(--ink-soft);
  margin-bottom: 24px;
}
.eyebrow-dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 4px color-mix(in srgb, var(--accent) 20%, transparent);
  animation: pulse 2s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.3); }
}

.display {
  font-family: var(--font-display);
  font-size: clamp(48px, 6.4vw, 84px);
  line-height: 0.98;
  letter-spacing: -0.025em;
  font-weight: 400;
  margin: 0 0 24px;
}
.display em { font-style: italic; color: var(--ink); }

.lede {
  font-size: 18px; line-height: 1.55;
  color: var(--ink-soft);
  max-width: 52ch;
  margin: 0 0 32px;
}
.hero-cta { display: flex; align-items: center; gap: 20px; flex-wrap: wrap; }
.hero-meta { font-size: 13px; color: var(--ink-soft); }

/* Hero demo stage */
.hero-stage {
  position: relative;
  aspect-ratio: 4 / 3;
  border-radius: 10px;
  overflow: hidden;
  background: #0a0a0a;
  box-shadow:
    0 1px 2px rgba(0,0,0,0.04),
    0 24px 60px -20px rgba(0,0,0,0.25),
    0 2px 8px rgba(0,0,0,0.08);
}
.hero-stage-frame { position: absolute; inset: 0; }
.hero-stage-frame canvas { width: 100% !important; height: 100% !important; }
.hero-corner {
  position: absolute;
  font-family: var(--font-mono);
  font-size: 10px;
  color: rgba(255,255,255,0.6);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 10px 14px;
  pointer-events: none;
}
.hero-corner.tl { top: 0; left: 0; }
.hero-corner.tr { top: 0; right: 0; }
.hero-corner.bl { bottom: 0; left: 0; }
.hero-corner.br { bottom: 0; right: 0; }

/* ============================================================
   Section scaffolding
   ============================================================ */
section { scroll-margin-top: 80px; }
.section-head {
  max-width: 1280px; margin: 0 auto;
  padding: 0 32px;
  margin-bottom: 48px;
}
.section-kicker {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-soft);
  margin-bottom: 16px;
}
.section-title {
  font-family: var(--font-display);
  font-size: clamp(36px, 4.5vw, 60px);
  line-height: 1.02;
  letter-spacing: -0.02em;
  font-weight: 400;
  margin: 0;
}

/* ============================================================
   How it works
   ============================================================ */
.how {
  padding: 80px 0;
  border-top: 1px solid var(--line-soft);
}
.how-grid {
  max-width: 1280px; margin: 0 auto;
  padding: 0 32px;
  display: grid; grid-template-columns: 1.2fr 1fr;
  gap: 64px; align-items: center;
}
.how-stage {
  background: #0a0a0a;
  border-radius: 10px;
  aspect-ratio: 16 / 11;
  position: relative;
  overflow: hidden;
  box-shadow: 0 1px 2px rgba(0,0,0,0.04), 0 18px 40px -16px rgba(0,0,0,0.2);
}
.how-stage-inner {
  position: absolute; inset: 0;
  display: grid; grid-template-columns: 1fr 1fr; grid-template-rows: 1fr 1fr;
  gap: 12px; padding: 20px;
}
.how-frame, .how-diff, .how-output {
  position: relative;
  border: 1px solid rgba(255,255,255,0.15);
  background: rgba(255,255,255,0.02);
  opacity: 0.25;
  transition: opacity .5s ease, border-color .5s ease, background .5s ease;
}
.how-frame.on, .how-diff.on, .how-output.on {
  opacity: 1;
  border-color: rgba(255,255,255,0.5);
}
.how-frame-label {
  position: absolute; top: 8px; left: 10px;
  font-family: var(--font-mono); font-size: 10px; color: rgba(255,255,255,0.6);
  letter-spacing: 0.06em; text-transform: uppercase;
}
.how-frame-dot {
  position: absolute; width: 10px; height: 10px; border-radius: 50%;
  background: #fff;
}
.how-diff-patch {
  position: absolute; left: 40%; top: 42%;
  width: 18%; height: 20%;
  background: rgba(255,255,255,0.2);
  border: 1px solid #fff;
  mix-blend-mode: screen;
}
.how-output-box {
  position: absolute; left: 42%; top: 40%;
  width: 22%; height: 28%;
  border: 1px solid #fff;
}
.how-output-cross {
  position: absolute; top: 50%; left: 0; width: 100%; height: 1px; background: #fff;
}
.how-output-cross.vert { top: 0; left: 50%; width: 1px; height: 100%; }
.how-output-label {
  position: absolute; top: -16px; left: 100%; margin-left: 6px;
  font-family: var(--font-mono); font-size: 10px; color: #fff; white-space: nowrap;
}

.how-steps { list-style: none; padding: 0; margin: 0; }
.how-step {
  display: grid; grid-template-columns: 48px 1fr;
  gap: 16px;
  padding: 20px 0;
  border-top: 1px solid var(--line);
  cursor: pointer;
  opacity: 0.4;
  transition: opacity .3s ease;
}
.how-step:last-child { border-bottom: 1px solid var(--line); }
.how-step.active { opacity: 1; }
.how-step-num {
  font-family: var(--font-mono); font-size: 11px;
  color: var(--ink-soft);
  letter-spacing: 0.04em;
}
.how-step h3 {
  font-family: var(--font-display);
  font-size: 28px;
  font-weight: 400;
  letter-spacing: -0.01em;
  margin: 0 0 4px;
}
.how-step p { margin: 0; color: var(--ink-soft); font-size: 15px; }

/* ============================================================
   Feature grid
   ============================================================ */
.features {
  padding: 80px 0;
  border-top: 1px solid var(--line-soft);
}
.feature-grid {
  max-width: 1280px; margin: 0 auto;
  padding: 0 32px;
  display: grid; grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}
.feature-preview canvas { width: 100% !important; height: 100% !important; }
.feature-card {
  border: 1px solid var(--line);
  border-radius: 10px;
  overflow: hidden;
  background: var(--bg);
  transition: transform .2s ease, box-shadow .2s ease;
}
.feature-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 24px -10px rgba(0,0,0,0.15);
}
.feature-preview {
  aspect-ratio: 5 / 3;
  background: #0a0a0a;
  overflow: hidden;
}
.feat-svg { width: 100%; height: 100%; display: block; }
.feature-body { padding: 18px 20px 22px; }
.feature-body h3 {
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 400;
  letter-spacing: -0.01em;
  margin: 0 0 6px;
}
.feature-body p { margin: 0; font-size: 14px; color: var(--ink-soft); line-height: 1.5; }

/* ============================================================
   CTA band
   ============================================================ */
.cta-band {
  padding: 100px 32px;
  border-top: 1px solid var(--line-soft);
}
.cta-inner {
  max-width: 1280px; margin: 0 auto;
  display: flex; align-items: center; justify-content: space-between;
  gap: 32px; flex-wrap: wrap;
}
.cta-title {
  font-family: var(--font-display);
  font-size: clamp(36px, 4.5vw, 56px);
  line-height: 1.02;
  letter-spacing: -0.02em;
  font-weight: 400;
  margin: 0;
}

/* ============================================================
   Footer
   ============================================================ */
.footer {
  border-top: 1px solid var(--line);
  padding: 48px 32px;
}
.footer-inner {
  max-width: 1280px; margin: 0 auto;
  display: flex; justify-content: space-between; gap: 32px; flex-wrap: wrap;
}
.footer-left .brand { margin-bottom: 8px; }
.footer-tag { margin: 0; font-size: 13px; color: var(--ink-soft); }
.footer-right { display: flex; gap: 24px; align-items: center; font-size: 13px; color: var(--ink-soft); flex-wrap: wrap; }
.footer-right a:hover { color: var(--ink); }
.footer-cred { font-family: var(--font-mono); font-size: 11px; opacity: 0.6; }

/* ============================================================
   Onboarding
   ============================================================ */
.ob-root { position: fixed; inset: 0; z-index: 50; overflow: hidden; background: #0a0a0a; }
.ob-backdrop { position: absolute; inset: 0; opacity: 0.4; filter: blur(1px); }
.ob-backdrop canvas { width: 100% !important; height: 100% !important; }
.ob-scrim {
  position: absolute; inset: 0;
  background: radial-gradient(ellipse at center, rgba(10,10,10,0.3), rgba(10,10,10,0.85));
}
.ob-card {
  position: relative;
  max-width: 720px; width: calc(100% - 48px);
  margin: 60px auto 0;
  background: var(--bg);
  border-radius: 14px;
  padding: 28px 32px 24px;
  box-shadow: 0 30px 80px -20px rgba(0,0,0,0.6);
  display: flex; flex-direction: column;
}
.ob-header {
  display: flex; align-items: center; gap: 16px;
  margin-bottom: 32px;
}
.ob-progress { display: flex; gap: 6px; margin-left: auto; margin-right: 16px; }
.ob-pip {
  width: 20px; height: 3px; border-radius: 999px;
  background: var(--line);
  transition: background .3s ease;
}
.ob-pip.on { background: var(--ink); }
.ob-skip { font-size: 13px; color: var(--ink-soft); }
.ob-skip:hover { color: var(--ink); }

.ob-step { min-height: 360px; }
.ob-kicker {
  font-family: var(--font-mono);
  font-size: 11px; letter-spacing: 0.08em; text-transform: uppercase;
  color: var(--ink-soft);
  margin-bottom: 12px;
}
.ob-title {
  font-family: var(--font-display);
  font-size: 40px; line-height: 1.02; letter-spacing: -0.02em;
  font-weight: 400;
  margin: 0 0 8px;
}
.ob-lede { margin: 0 0 24px; color: var(--ink-soft); font-size: 15px; }

.ob-options { display: flex; flex-direction: column; gap: 8px; }
.ob-option {
  display: grid; grid-template-columns: 48px 1fr 28px;
  align-items: center; gap: 16px;
  text-align: left;
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: 10px;
  transition: border-color .15s ease, background .15s ease;
}
.ob-option:hover { border-color: var(--ink); }
.ob-option.selected { border-color: var(--ink); background: color-mix(in srgb, var(--ink) 4%, transparent); }
.ob-option-icon { color: var(--ink); }
.ob-option-body { display: flex; flex-direction: column; gap: 2px; }
.ob-option-title { font-weight: 500; font-size: 15px; }
.ob-option-desc { font-size: 13px; color: var(--ink-soft); }
.ob-option-check { font-weight: 600; color: var(--ink); font-size: 16px; }

.ob-looks {
  display: grid; grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}
.ob-look {
  text-align: left;
  border: 1px solid var(--line);
  border-radius: 10px;
  overflow: hidden;
  transition: border-color .15s ease;
}
.ob-look:hover { border-color: var(--ink); }
.ob-look.selected { border-color: var(--ink); box-shadow: 0 0 0 2px var(--ink); }
.ob-look-preview { aspect-ratio: 16 / 10; background: #0a0a0a; overflow: hidden; }
.ob-look-preview canvas { width: 100% !important; height: 100% !important; }
.ob-look-meta { padding: 10px 14px 12px; display: flex; justify-content: space-between; align-items: baseline; }
.ob-look-title { font-weight: 500; }
.ob-look-sub { font-size: 12px; color: var(--ink-soft); }

.ob-summary { display: grid; gap: 10px; margin: 0; }
.ob-summary > div {
  display: grid; grid-template-columns: 100px 1fr;
  padding: 14px 16px;
  border: 1px solid var(--line);
  border-radius: 10px;
  align-items: center;
}
.ob-summary dt { font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.06em; text-transform: uppercase; color: var(--ink-soft); margin: 0; }
.ob-summary dd { margin: 0; font-size: 15px; }

.ob-footer {
  margin-top: 24px; padding-top: 20px;
  border-top: 1px solid var(--line);
  display: flex; align-items: center; justify-content: space-between;
}
.ob-stepcount { font-family: var(--font-mono); font-size: 11px; color: var(--ink-soft); letter-spacing: 0.06em; }

/* ============================================================
   App view
   ============================================================ */
.app-root {
  position: fixed; inset: 0;
  background: #0a0a0a;
  overflow: hidden;
}
.app-stage {
  position: absolute; inset: 0;
}
.app-stage canvas { width: 100% !important; height: 100% !important; }

.app-topbar {
  position: absolute; top: 16px; left: 16px; right: 16px;
  display: flex; align-items: center; gap: 16px;
  pointer-events: none;
}
.app-topbar > * { pointer-events: auto; }
.app-brand {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 8px 14px;
  background: rgba(10,10,10,0.7);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 999px;
  color: #fff;
  font-family: var(--font-display);
  font-size: 16px;
}
.app-topbar-mid { flex: 1; display: flex; justify-content: center; }
.app-presets {
  display: flex; gap: 2px;
  background: rgba(10,10,10,0.7);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 999px;
  padding: 3px;
}
.app-preset {
  padding: 6px 14px;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.6);
  border-radius: 999px;
  transition: background .15s, color .15s;
}
.app-preset:hover { background: rgba(255,255,255,0.08); color: #fff; }
.app-source-chip {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 6px 12px 6px 10px;
  background: rgba(10,10,10,0.7);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 999px;
  color: rgba(255,255,255,0.85);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
.app-source-dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: #ff3b30;
  box-shadow: 0 0 0 3px rgba(255,59,48,0.25);
}
.app-topbar-right { display: flex; gap: 8px; }
.app-icon-btn {
  width: 36px; height: 36px;
  display: inline-flex; align-items: center; justify-content: center;
  background: rgba(10,10,10,0.7);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 50%;
  color: #fff;
  transition: background .15s ease;
}
.app-icon-btn:hover { background: rgba(255,255,255,0.1); }

/* Dock */
.dock {
  position: absolute;
  right: 16px;
  top: 50%;
  transform: translateY(-50%);
  width: 320px;
  max-height: 70vh;
  background: rgba(10,10,10,0.78);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 14px;
  color: #eaeaea;
  display: flex; flex-direction: column;
  overflow: hidden;
}
.dock-tabs {
  display: grid; grid-template-columns: repeat(4, 1fr);
  border-bottom: 1px solid rgba(255,255,255,0.08);
  padding: 6px;
  gap: 2px;
}
.dock-tab {
  padding: 8px 0;
  font-size: 12px;
  color: rgba(255,255,255,0.55);
  border-radius: 8px;
  transition: background .15s ease, color .15s ease;
}
.dock-tab:hover { color: #fff; }
.dock-tab.active { background: rgba(255,255,255,0.08); color: #fff; }
.dock-panel { padding: 18px; overflow-y: auto; }

.panel-body { display: flex; flex-direction: column; gap: 16px; }

.field { display: flex; flex-direction: column; gap: 10px; }
.field-label {
  font-family: var(--font-mono); font-size: 10px;
  color: rgba(255,255,255,0.5);
  letter-spacing: 0.08em; text-transform: uppercase;
}
.swatches { display: flex; gap: 8px; }
.swatch {
  width: 28px; height: 28px; border-radius: 50%;
  border: 1px solid rgba(255,255,255,0.15);
  transition: transform .1s ease, box-shadow .15s ease;
}
.swatch:hover { transform: scale(1.08); }
.swatch.active { box-shadow: 0 0 0 2px rgba(255,255,255,0.25), 0 0 0 4px rgba(255,255,255,0.5); }

.segmented {
  display: flex;
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 999px;
  padding: 3px;
  gap: 2px;
}
.seg {
  flex: 1;
  padding: 6px 0;
  font-size: 12px;
  color: rgba(255,255,255,0.6);
  border-radius: 999px;
  transition: background .15s ease, color .15s ease;
}
.seg.active { background: rgba(255,255,255,0.14); color: #fff; }

.layer-row {
  display: grid; grid-template-columns: 20px 1fr auto;
  gap: 12px; align-items: center;
  padding: 12px 14px;
  background: rgba(255,255,255,0.02);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: 10px;
  text-align: left;
  transition: border-color .15s ease, background .15s ease;
}
.layer-row:hover { border-color: rgba(255,255,255,0.18); }
.layer-row.on { border-color: rgba(255,255,255,0.25); background: rgba(255,255,255,0.05); }
.layer-dot {
  width: 10px; height: 10px; border-radius: 50%;
  background: rgba(255,255,255,0.15);
  border: 1px solid rgba(255,255,255,0.25);
  transition: background .15s ease;
}
.layer-dot.on { background: #fff; border-color: #fff; box-shadow: 0 0 0 3px rgba(255,255,255,0.12); }
.layer-meta { display: flex; flex-direction: column; gap: 2px; }
.layer-label { font-size: 14px; color: #fff; }
.layer-help { font-size: 11px; color: rgba(255,255,255,0.5); }
.layer-row.compact {
  padding: 8px 12px;
  grid-template-columns: 14px 1fr auto;
}
.layer-row.compact .layer-label { font-size: 13px; }

.toggle-pair { display: flex; gap: 6px; }
.chip {
  flex: 1;
  padding: 8px 0;
  font-size: 12px;
  color: rgba(255,255,255,0.6);
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 8px;
  transition: background .15s, color .15s, border-color .15s;
}
.chip:hover { color: #fff; }
.chip.on { background: rgba(255,255,255,0.12); color: #fff; border-color: rgba(255,255,255,0.2); }

.divider { height: 1px; background: rgba(255,255,255,0.06); margin: 4px 0; }

.dock-tabs {
  display: grid; grid-template-columns: repeat(6, 1fr);
  border-bottom: 1px solid rgba(255,255,255,0.08);
  padding: 6px;
  gap: 2px;
}
.dock-tab { font-size: 11px; }

.slider-row { display: flex; flex-direction: column; gap: 8px; }
.slider-head { display: flex; justify-content: space-between; align-items: baseline; }
.slider-label { font-size: 13px; color: #fff; }
.slider-val {
  font-family: var(--font-mono); font-size: 11px;
  color: rgba(255,255,255,0.7);
}
.slider-row input[type="range"] {
  -webkit-appearance: none; appearance: none;
  width: 100%; height: 3px; background: rgba(255,255,255,0.15);
  border-radius: 999px; outline: none;
}
.slider-row input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none; appearance: none;
  width: 14px; height: 14px; border-radius: 50%;
  background: #fff; cursor: pointer;
  box-shadow: 0 0 0 3px rgba(255,255,255,0.12);
}
.slider-hint { font-size: 11px; color: rgba(255,255,255,0.45); }

.readout {
  position: absolute;
  left: 16px; bottom: 16px;
  background: rgba(10,10,10,0.7);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 10px;
  padding: 10px 14px;
  color: rgba(255,255,255,0.85);
  font-family: var(--font-mono); font-size: 11px;
  display: flex; flex-direction: column; gap: 4px;
  min-width: 140px;
}
.readout-row { display: flex; justify-content: space-between; gap: 20px; letter-spacing: 0.04em; }
.readout-row span:first-child { color: rgba(255,255,255,0.5); text-transform: uppercase; }

.hint {
  position: absolute; bottom: 20px; left: 50%; transform: translateX(-50%);
  font-family: var(--font-mono); font-size: 11px; color: rgba(255,255,255,0.55);
  background: rgba(10,10,10,0.5);
  padding: 6px 12px; border-radius: 999px;
  border: 1px solid rgba(255,255,255,0.06);
}

/* ============================================================
   Tweaks panel (host controls for aesthetic knobs)
   ============================================================ */
.tweaks-panel {
  position: fixed; right: 16px; bottom: 16px; z-index: 80;
  width: 280px;
  background: rgba(255,255,255,0.97);
  backdrop-filter: blur(12px);
  border: 1px solid rgba(17,17,17,0.12);
  border-radius: 12px;
  padding: 14px 16px 16px;
  font-size: 12px;
  color: #111;
  box-shadow: 0 18px 40px -12px rgba(0,0,0,0.25);
}
.tweaks-panel h4 {
  font-family: var(--font-display);
  font-size: 18px; margin: 0 0 12px;
  font-weight: 400; letter-spacing: -0.01em;
}
.tweaks-row { display: flex; flex-direction: column; gap: 6px; margin-bottom: 12px; }
.tweaks-row label {
  font-family: var(--font-mono); font-size: 10px; letter-spacing: 0.06em; text-transform: uppercase; color: #666;
}
.tweaks-row .swatches button {
  width: 22px; height: 22px; border-radius: 50%;
  border: 1px solid rgba(17,17,17,0.15);
}
.tweaks-row select {
  font-family: inherit; font-size: 12px;
  padding: 6px 8px;
  border: 1px solid rgba(17,17,17,0.15);
  border-radius: 6px;
  background: #fff;
}

/* ============================================================
   Responsive tuning
   ============================================================ */
@media (max-width: 960px) {
  .hero { grid-template-columns: 1fr; padding: 40px 20px; gap: 32px; }
  .how-grid { grid-template-columns: 1fr; gap: 32px; }
  .feature-grid { grid-template-columns: repeat(2, 1fr); }
  .dock { width: 280px; top: auto; bottom: 70px; transform: none; }
  .ob-looks { grid-template-columns: 1fr; }
  .modes-grid { grid-template-columns: repeat(2, 1fr); }
  .effects-chain { grid-template-columns: 1fr; }
  .effect-col ul { columns: 2; }
}

/* ============================================================
   Detection modes (section 02)
   ============================================================ */
.modes {
  padding: 80px 0;
  border-top: 1px solid var(--line-soft);
}
.modes-grid {
  max-width: 1280px; margin: 0 auto;
  padding: 0 32px;
  display: grid; grid-template-columns: repeat(4, 1fr);
  gap: 12px;
}
.mode-card {
  border: 1px solid var(--line);
  border-radius: 10px;
  overflow: hidden;
  background: var(--bg);
  transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
}
.mode-card:hover {
  transform: translateY(-2px);
  border-color: var(--ink);
  box-shadow: 0 12px 24px -10px rgba(0,0,0,0.15);
}
.mode-preview {
  aspect-ratio: 5 / 3;
  background: #0a0a0a;
  display: flex; align-items: center; justify-content: center;
  overflow: hidden;
}
.mode-preview .glyph {
  width: 100%; height: 100%; display: block;
}
.mode-body { padding: 16px 18px 18px; }
.mode-body h3 {
  font-family: var(--font-display);
  font-size: 20px; font-weight: 400; letter-spacing: -0.01em;
  margin: 0 0 4px;
}
.mode-body p { margin: 0; font-size: 13px; color: var(--ink-soft); line-height: 1.45; }

/* ============================================================
   Effect chain (section 03)
   ============================================================ */
.effects {
  padding: 80px 0;
  border-top: 1px solid var(--line-soft);
}
.effects-chain {
  max-width: 1280px; margin: 0 auto;
  padding: 0 32px;
  display: grid;
  grid-template-columns: 0.7fr 1.1fr 0.9fr 1.3fr 1.2fr;
  gap: 32px;
}
.effect-col h4 {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-soft);
  margin: 0 0 14px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--line);
  font-weight: 500;
}
.effect-col ul {
  list-style: none; padding: 0; margin: 0;
}
.effect-col li {
  font-family: var(--font-mono);
  font-size: 12px;
  padding: 6px 0;
  color: var(--ink);
  letter-spacing: -0.005em;
  border-bottom: 1px solid var(--line-soft);
  transition: color .15s ease, padding-left .15s ease, background .15s ease;
  cursor: default;
}
.effect-col li:hover {
  color: var(--accent);
  padding-left: 6px;
}
.effect-col li:last-child { border-bottom: none; }
.effects-note {
  max-width: 1280px; margin: 40px auto 0;
  padding: 0 32px;
  font-size: 14px; color: var(--ink-soft);
  max-width: 720px;
  padding: 0 32px;
  margin: 40px auto 0;
}

/* Core layers trimmed to 4 — override feature-grid columns when applied */
.feature-grid.layers-4 { grid-template-columns: repeat(4, 1fr); }
@media (max-width: 960px) {
  .feature-grid.layers-4 { grid-template-columns: repeat(2, 1fr); }
}

/* ============================================================
   Hero interactive panel — presets + sliders
   ============================================================ */
.hero-stage-wrap { display: flex; flex-direction: column; gap: 14px; }
.hero-panel {
  display: flex; flex-direction: column; gap: 10px;
  padding: 14px 16px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: color-mix(in srgb, var(--bg) 40%, #ffffff 60%);
}
.hp-row { display: flex; align-items: center; gap: 14px; flex-wrap: wrap; }
.hp-label {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-soft);
  min-width: 44px;
}
.hp-presets { display: flex; gap: 6px; flex-wrap: wrap; flex: 1; }
.hp-chip {
  padding: 6px 12px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.02em;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: transparent;
  color: var(--ink-soft);
  cursor: pointer;
  transition: border-color .15s ease, color .15s ease, background .15s ease;
  display: inline-flex; align-items: center; justify-content: center;
}
.hp-chip:hover { color: var(--ink); border-color: var(--ink); }
.hp-chip.on { background: var(--ink); color: var(--bg); border-color: var(--ink); }
.hp-upload { cursor: pointer; }
.hp-sliders { gap: 18px; }
.hp-slider {
  display: flex; align-items: center; gap: 10px; flex: 1;
  min-width: 180px;
}
.hp-slider input[type="range"] {
  -webkit-appearance: none; appearance: none;
  flex: 1;
  height: 3px;
  background: var(--line);
  border-radius: 999px; outline: none;
  cursor: pointer;
}
.hp-slider input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none; appearance: none;
  width: 14px; height: 14px; border-radius: 50%;
  background: var(--ink);
  cursor: pointer;
  border: 2px solid var(--bg);
  box-shadow: 0 0 0 1px var(--ink);
}
.hp-slider input[type="range"]::-moz-range-thumb {
  width: 14px; height: 14px; border-radius: 50%;
  background: var(--ink);
  cursor: pointer;
  border: 2px solid var(--bg);
  box-shadow: 0 0 0 1px var(--ink);
}
.hp-val {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--ink);
  min-width: 36px; text-align: right;
}

@media (max-width: 960px) {
  .hp-row { gap: 8px; }
  .hp-sliders { flex-direction: column; align-items: stretch; }
  .hp-slider { width: 100%; }
}