/* ════════════════════════════════════════════════════════════════
   SoundSketcher experiment showcases — shared design system.
   Every page under /experiments uses the sc-* layout classes below;
   page templates only add CSS for their own interactive demo.
   ════════════════════════════════════════════════════════════════ */

:root {
  color-scheme: light;

  --bg:          #F5F4F0;
  --panel:       #FFFFFF;
  --panel-soft:  #FAF9F6;
  --ink:         #1B1A28;
  --ink-soft:    #33313F;
  --muted:       #68667A;
  --line:        #E0DDD6;
  --accent:      #3A6BD6;
  --accent-ink:  #2B53AD;
  --accent-soft: #EAF0FC;
  --accent-fg:   #FFFFFF;
  --danger:      #B23B3B;

  /* timbre categories — shared by Bouba/Kiki and Semantic pages */
  --cat-smooth:     #2AA69F;
  --cat-smooth-bg:  #E6F6F5;
  --cat-rough:      #D4664A;
  --cat-rough-bg:   #FCEEEA;
  --cat-sharp:      #B08800;
  --cat-sharp-bg:   #FBF5E2;

  /* aliases kept for demo CSS written against older token names */
  --paper: var(--bg);
  --blue:  var(--accent);
  --green: var(--accent);
  --gold:  var(--cat-sharp);

  --font-display: 'Fraunces', Georgia, 'Times New Roman', serif;
  --font-body:    'Inter', ui-sans-serif, system-ui, -apple-system, 'Segoe UI', sans-serif;
  --experiment-font: var(--font-body);

  --page-max: 1120px;
  --radius:   8px;
}

html { font-family: var(--font-body); }

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  color: var(--ink);
  background: var(--bg);
}

button, input, select, textarea { font: inherit; }

a {
  color: var(--accent);
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

/* header.css sets `* { font-family: Roboto; line-height: 1.5 }`; restore inheritance inside the page */
.sc-page,
.sc-page * { font-family: inherit; line-height: inherit; }
.sc-page { font-family: var(--font-body); }

/* ── page container ─────────────────────────────────────────────── */
.sc-page {
  max-width: var(--page-max);
  margin: 0 auto;
  padding-block: 56px 96px;
  padding-left: max(24px, env(safe-area-inset-left, 0px));
  padding-right: max(24px, env(safe-area-inset-right, 0px));
}

/* ── hero ───────────────────────────────────────────────────────── */
.sc-hero { padding-bottom: 56px; }

.sc-eyebrow {
  margin: 0 0 18px;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
}

.sc-title {
  margin: 0 0 22px;
  max-width: 16ch;
  font-family: var(--font-display);
  font-optical-sizing: auto;
  font-size: clamp(2.6rem, 6.2vw, 4.4rem);
  font-weight: 400;
  line-height: 1.04;
  letter-spacing: -0.01em;
  text-wrap: balance;
}
.sc-title em { font-style: italic; }

.sc-lead {
  max-width: 64ch;
  margin: 0 0 32px;
  font-size: 1.1rem;
  color: var(--muted);
}

.sc-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 32px;
}
.sc-stat {
  display: flex;
  flex-direction: column;
  justify-content: center;
  min-width: 104px;
  padding: 14px 20px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel);
}
.sc-stat__n {
  font-family: var(--font-display);
  font-size: 2.1rem;
  font-weight: 500;
  line-height: 1;
  font-variant-numeric: tabular-nums;
}
.sc-stat__label {
  margin-top: 6px;
  font-size: 0.8rem;
  color: var(--muted);
}

/* ── buttons ────────────────────────────────────────────────────── */
.sc-actions { display: flex; flex-wrap: wrap; gap: 10px; }

.sc-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  min-height: 42px;
  padding: 0 18px;
  border: 1px solid var(--accent);
  border-radius: 7px;
  background: var(--accent);
  color: var(--accent-fg);
  font-size: 0.92rem;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  transition: background 0.15s, color 0.15s, border-color 0.15s;
}
.sc-btn:hover { background: var(--accent-ink); border-color: var(--accent-ink); }
.sc-btn--ghost { background: transparent; color: var(--accent); }
.sc-btn--ghost:hover { background: var(--accent-soft); color: var(--accent-ink); }

/* ── sections ───────────────────────────────────────────────────── */
.sc-sec {
  padding-block: 52px;
  border-top: 1px solid var(--line);
  scroll-margin-top: 72px;
}
.sc-sec__title {
  margin: 0 0 12px;
  font-family: var(--font-display);
  font-optical-sizing: auto;
  font-size: clamp(1.6rem, 3vw, 2.1rem);
  font-weight: 400;
  line-height: 1.15;
  text-wrap: balance;
}
.sc-sec__copy {
  max-width: 68ch;
  margin: 0 0 28px;
  color: var(--muted);
}
.sc-sub {
  margin: 36px 0 14px;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
}

/* ── numbered method cards ──────────────────────────────────────── */
.sc-steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 12px;
}
.sc-step {
  padding: 20px 20px 22px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel);
}
.sc-step h3 {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-size: 1.12rem;
  font-weight: 500;
  line-height: 1.3;
}
.sc-step p { margin: 0; font-size: 0.9rem; color: var(--muted); }

/* ── panel (demo container) ─────────────────────────────────────── */
.sc-panel {
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--panel);
}

/* ── result metrics ─────────────────────────────────────────────── */
.sc-metrics {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 12px;
}
.sc-metric {
  padding: 18px 20px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel);
}
.sc-metric__n {
  display: block;
  margin-bottom: 6px;
  font-family: var(--font-display);
  font-size: 1.85rem;
  font-weight: 500;
  line-height: 1.05;
  font-variant-numeric: tabular-nums;
  color: var(--ink);
}
.sc-metric p { margin: 0; font-size: 0.88rem; color: var(--muted); }

.sc-findings {
  display: grid;
  gap: 12px;
  max-width: 76ch;
  margin: 0;
  padding: 0;
  list-style: none;
}
.sc-findings li {
  padding-left: 16px;
  border-left: 3px solid var(--accent);
  color: var(--ink-soft);
}

/* ── figures ────────────────────────────────────────────────────── */
.sc-figures {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 14px;
}
.sc-figures--2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.sc-figures--2 .sc-figure img { height: 340px; }
@media (max-width: 760px) { .sc-figures--2 { grid-template-columns: 1fr; } }
.sc-figure {
  display: flex;
  flex-direction: column;
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel);
}
.sc-figure a { display: block; }
.sc-figure img {
  display: block;
  width: 100%;
  height: 260px;
  object-fit: contain;
  padding: 10px;
  background: #fff;
}
.sc-figure figcaption {
  padding: 12px 14px;
  border-top: 1px solid var(--line);
  font-size: 0.86rem;
  line-height: 1.45;
  color: var(--muted);
}

/* ── publication ────────────────────────────────────────────────── */
.sc-pub {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.15fr);
  gap: 36px;
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--panel);
}
.sc-pub__venue {
  margin: 0 0 10px;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
}
.sc-pub__title {
  margin: 0 0 12px;
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-style: italic;
  font-weight: 400;
  line-height: 1.3;
}
.sc-pub__authors { margin: 0 0 20px; font-size: 0.9rem; color: var(--ink-soft); }
.sc-pub__text {
  margin: 0;
  padding-left: 20px;
  border-left: 1px solid var(--line);
  font-size: 0.92rem;
  color: var(--muted);
}
.sc-note { margin: 16px 0 0; font-size: 0.86rem; color: var(--muted); }

/* ── experiments hub cards ──────────────────────────────────────── */
.sc-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 14px;
}
.sc-card {
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding: 24px 22px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--panel);
}
.sc-card .sc-btn { min-height: 36px; padding: 0 14px; font-size: 0.85rem; }
.sc-card .sc-actions { gap: 8px; }
.sc-card .sc-card__venue {
  margin: 0;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
}
.sc-card h2 {
  margin: 0;
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 400;
  line-height: 1.15;
  text-wrap: balance;
}
.sc-card p { margin: 0; font-size: 0.92rem; color: var(--muted); }
.sc-card .sc-card__question {
  padding-left: 14px;
  border-left: 3px solid var(--accent);
  color: var(--ink-soft);
}
.sc-pills { display: flex; flex-wrap: wrap; gap: 6px; margin-top: auto; }
.sc-pill {
  display: inline-flex;
  align-items: center;
  min-height: 26px;
  padding: 2px 10px;
  border: 1px solid var(--line);
  border-radius: 999px;
  font-size: 0.8rem;
  color: var(--muted);
}

@media (max-width: 760px) {
  .sc-page { padding-block: 32px 64px; }
  .sc-stat { flex: 1 1 0; min-width: 0; padding: 12px 14px; }
  .sc-pub { grid-template-columns: 1fr; gap: 20px; }
  .sc-pub__text { padding-left: 0; padding-top: 18px; border-left: 0; border-top: 1px solid var(--line); }
}

/* ── compare-with-the-group strip ───────────────────────────────── */
.sc-compare { display: grid; gap: 14px; }
.sc-compare__head { display: flex; flex-wrap: wrap; align-items: baseline; justify-content: space-between; gap: 6px 16px; }
.sc-compare__title {
  margin: 0;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
}
.sc-compare__summary { margin: 0; font-size: 0.9rem; color: var(--ink-soft); font-variant-numeric: tabular-nums; }
.sc-compare__summary strong { color: var(--ink); font-weight: 600; }
.sc-compare__row { display: grid; grid-template-columns: 110px minmax(0, 1fr); gap: 14px; align-items: center; }
.sc-compare__row--bare { grid-template-columns: minmax(0, 1fr); }
.sc-compare__label { font-size: 0.86rem; font-weight: 500; }
.sc-compare__track {
  position: relative;
  height: 30px;
  border-radius: 6px;
  background: var(--panel-soft);
  box-shadow: inset 0 0 0 1px var(--line);
}
.sc-compare__iqr {
  position: absolute;
  top: 7px;
  bottom: 7px;
  border-radius: 4px;
  background: var(--accent-soft);
  box-shadow: inset 0 0 0 1px #C9D6F5;
}
.sc-compare__median {
  position: absolute;
  top: 3px;
  bottom: 3px;
  width: 3px;
  margin-left: -1.5px;
  border-radius: 2px;
  background: var(--ink);
}
.sc-compare__you {
  position: absolute;
  top: 50%;
  width: 14px;
  height: 14px;
  margin: -7px 0 0 -7px;
  border: 2px solid var(--panel);
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 1px var(--accent);
}
.sc-compare__scale {
  display: flex;
  justify-content: space-between;
  margin-top: 4px;
  font-size: 0.72rem;
  color: var(--muted);
  font-variant-numeric: tabular-nums;
}
.sc-compare__legend { display: flex; flex-wrap: wrap; gap: 6px 18px; font-size: 0.78rem; color: var(--muted); }
.sc-compare__legend span { display: inline-flex; align-items: center; gap: 6px; }
.sc-compare__legend i { display: inline-block; flex-shrink: 0; }
.sc-key-you    { width: 10px; height: 10px; border-radius: 50%; background: var(--accent); }
.sc-key-median { width: 3px; height: 12px; border-radius: 2px; background: var(--ink); }
.sc-key-iqr    { width: 18px; height: 10px; border-radius: 3px; background: var(--accent-soft); box-shadow: inset 0 0 0 1px #C9D6F5; }
.sc-compare__note { margin: 0; font-size: 0.8rem; color: var(--muted); }

/* ── response histogram ─────────────────────────────────────────── */
.sc-hist { display: grid; gap: 6px; }
.sc-hist__bars {
  display: grid;
  grid-auto-columns: minmax(0, 1fr);
  grid-auto-flow: column;
  align-items: end;
  gap: 3px;
  height: 84px;
  padding-bottom: 1px;
  border-bottom: 1px solid var(--line);
}
.sc-hist__bar { min-height: 2px; border-radius: 3px 3px 0 0; background: #C9D6F5; }
.sc-hist__bar.is-you { background: var(--accent); }
.sc-hist__axis { display: flex; justify-content: space-between; font-size: 0.72rem; color: var(--muted); }

/* ── citation block ─────────────────────────────────────────────── */
.sc-cite { margin-top: 18px; }
.sc-cite summary {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.86rem;
  font-weight: 600;
  color: var(--accent);
  cursor: pointer;
}
.sc-cite__box { position: relative; margin-top: 10px; }
.sc-cite pre {
  margin: 0;
  padding: 14px 16px;
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel-soft);
  font-family: ui-monospace, 'SFMono-Regular', Menlo, Consolas, monospace;
  font-size: 0.78rem;
  line-height: 1.55;
  color: var(--ink-soft);
  white-space: pre;
}
.sc-cite__copy {
  position: absolute;
  top: 8px;
  right: 8px;
  min-height: 30px;
  padding: 0 10px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--panel);
  color: var(--ink);
  font-size: 0.78rem;
  font-weight: 600;
  cursor: pointer;
}

/* ── figure lightbox ────────────────────────────────────────────── */
.sc-figure img { cursor: zoom-in; }
.sc-figure img:focus { outline: none; }
.sc-figure img:focus-visible { outline: 2px solid var(--accent); outline-offset: -2px; }
.sc-lightbox {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: grid;
  place-items: center;
  padding: max(24px, env(safe-area-inset-top, 0px)) max(16px, env(safe-area-inset-right, 0px)) max(24px, env(safe-area-inset-bottom, 0px)) max(16px, env(safe-area-inset-left, 0px));
  background: rgba(20, 19, 30, 0.82);
  cursor: zoom-out;
}
.sc-lightbox[hidden] { display: none; }
.sc-lightbox figure { display: grid; gap: 10px; max-width: min(1200px, 100%); max-height: 100%; margin: 0; }
.sc-lightbox img { max-width: 100%; max-height: calc(100vh - 140px); border-radius: 8px; background: #fff; object-fit: contain; }
.sc-lightbox figcaption { color: #F1EFEA; font-size: 0.9rem; text-align: center; }
.sc-lightbox__close {
  position: absolute;
  top: max(14px, env(safe-area-inset-top, 0px));
  right: max(14px, env(safe-area-inset-right, 0px));
  width: 40px;
  height: 40px;
  border: 0;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.14);
  color: #fff;
  font-size: 1.3rem;
  cursor: pointer;
}

/* ── footer ─────────────────────────────────────────────────────── */
.sc-footer { border-top: 1px solid var(--line); background: var(--panel-soft); }
.sc-footer__inner {
  display: grid;
  gap: 28px;
  max-width: var(--page-max);
  margin: 0 auto;
  padding-block: 40px 48px;
  padding-left: max(24px, env(safe-area-inset-left, 0px));
  padding-right: max(24px, env(safe-area-inset-right, 0px));
}
.sc-footer, .sc-footer * { font-family: var(--font-body); line-height: 1.55; }
.sc-pager { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
.sc-pager a {
  display: grid;
  gap: 4px;
  padding: 16px 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel);
  color: var(--ink);
  text-decoration: none;
  transition: border-color 0.15s;
}
.sc-pager a:hover { border-color: var(--accent); }
.sc-pager a.is-next { grid-column: 2; text-align: right; }
.sc-pager small { font-size: 0.72rem; font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase; color: var(--muted); }
.sc-pager span { font-family: var(--font-display); font-size: 1.15rem; }
.sc-footer__meta { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 12px 24px; font-size: 0.84rem; color: var(--muted); }
.sc-footer__meta p { max-width: 70ch; margin: 0; }
.sc-footer__meta a { font-weight: 600; text-decoration: none; }
@media (max-width: 620px) {
  .sc-pager { grid-template-columns: 1fr; }
  .sc-pager a.is-next { grid-column: auto; }
  .sc-compare__row { grid-template-columns: 1fr; gap: 6px; }
}

/* ── shared demo widgets (used inside demo panels) ──────────────── */
.button,
.play-button,
.real-play-button,
.icon-button {
  border-radius: 7px;
  font-weight: 600;
}
.button.primary,
.real-play-button {
  border-color: var(--accent);
  background: var(--accent);
  color: var(--accent-fg);
}
.button--secondary,
.button.ghost {
  background: transparent;
  color: var(--accent);
}
.segmented {
  border-color: var(--line);
  border-radius: 8px;
  background: var(--panel);
}
.segmented button { font-weight: 600; }
.segmented button[aria-pressed="true"] { background: var(--ink); color: #fff; }

.stimulus-card,
.sound-card,
.demo-ui {
  border-color: var(--line);
  border-radius: var(--radius);
  background: var(--panel);
}
.sound-card[aria-current="true"],
.stimulus-card[aria-current="true"] {
  border-color: var(--accent);
  background: var(--accent-soft);
}

/* ── navbar on showcase pages ───────────────────────────────────── */
.logo--for-dark { display: none; }
.showcase-navbar .chameleon-navbar__tool-row { display: none; }