/* ==========================================================================
   Lyric Codex — orient-luxury design system
   ========================================================================== */

:root {
  --bg: #09080b;
  --bg-raised: #121016;
  --bg-plate: #16131a;
  --ink: #ece7de;
  --ink-dim: #ada79c;
  --ink-faint: #6f6a63;
  --gold: #c9a84c;
  --gold-dim: #8f7936;
  --hairline: rgba(201, 168, 76, 0.18);
  --hairline-strong: rgba(201, 168, 76, 0.32);
  --shadow: rgba(0, 0, 0, 0.5);
  --danger: #b5654a;

  --font-display: 'Cinzel', 'Times New Roman', serif;
  --font-body: 'Cormorant Garamond', Georgia, serif;
  --font-label: 'Syne', sans-serif;
  --font-mono: 'IBM Plex Mono', monospace;
}

html[data-theme="light"] {
  --bg: #f0ebe0;
  --bg-raised: #e8e1d2;
  --bg-plate: #ece5d6;
  --ink: #2a2419;
  --ink-dim: #574f3f;
  --ink-faint: #8a8064;
  --gold: #8a6820;
  --gold-dim: #a9863c;
  --hairline: rgba(138, 104, 32, 0.25);
  --hairline-strong: rgba(138, 104, 32, 0.4);
  --shadow: rgba(90, 70, 30, 0.18);
}

* { box-sizing: border-box; }

/* Guarantee the [hidden] attribute always wins over any component's own
   `display` declaration, regardless of selector specificity or source
   order. Without this, a rule like `.scroll-overlay { display: flex; }`
   silently defeats `hidden` since both have equal specificity and the
   author stylesheet loads after the user-agent stylesheet. */
[hidden] { display: none !important; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--ink);
}

body {
  font-family: var(--font-body);
  font-size: 19px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  transition: background 0.35s ease, color 0.35s ease;
}

a { color: var(--gold); }

/* Grain overlay */
.grain-overlay {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  mix-blend-mode: soft-light;
  z-index: 1;
}

.page {
  position: relative;
  z-index: 2;
  max-width: 920px;
  margin: 0 auto;
  padding: 40px 24px 100px;
}

/* ==========================================================================
   Header
   ========================================================================== */

.site-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 20px;
  padding-bottom: 32px;
  margin-bottom: 36px;
  border-bottom: 1px solid var(--hairline);
}

.brand {
  display: flex;
  align-items: center;
  gap: 14px;
}

.brand-mark {
  color: var(--gold);
  flex-shrink: 0;
  margin-top: 4px;
}

.brand-text h1 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 30px;
  letter-spacing: 0.04em;
  margin: 0;
  color: var(--ink);
}

.brand-tagline {
  font-family: var(--font-label);
  font-size: 12px;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--gold-dim);
  margin: 6px 0 0;
}

.theme-toggle {
  display: flex;
  align-items: center;
  gap: 8px;
  background: transparent;
  border: 1px solid var(--hairline-strong);
  color: var(--ink-dim);
  font-family: var(--font-label);
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 9px 16px;
  border-radius: 999px;
  cursor: pointer;
  transition: border-color 0.25s ease, color 0.25s ease;
  flex-shrink: 0;
}

.theme-toggle:hover,
.theme-toggle:focus-visible {
  border-color: var(--gold);
  color: var(--gold);
}

.theme-toggle-icon {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--gold);
  display: inline-block;
  box-shadow: 0 0 8px var(--gold);
}

html[data-theme="light"] .theme-toggle-label::after { content: ""; }
.theme-toggle-label::after { content: ""; }

/* swap the label text via JS; kept generic here */

/* ==========================================================================
   Search plate
   ========================================================================== */

.search-plate {
  background: var(--bg-plate);
  border: 1px solid var(--hairline);
  border-radius: 3px;
  padding: 28px 28px 22px;
  margin-bottom: 40px;
  box-shadow: 0 18px 40px -24px var(--shadow);
}

.field-row {
  display: grid;
  grid-template-columns: 1.2fr 1fr 1fr;
  gap: 18px;
}

.field-row-action {
  grid-template-columns: 1fr auto;
  align-items: center;
  margin-top: 18px;
}

.field label {
  display: block;
  font-family: var(--font-label);
  font-size: 11px;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--ink-dim);
  margin-bottom: 8px;
}

.field-optional {
  color: var(--ink-faint);
  text-transform: none;
  letter-spacing: 0;
  font-family: var(--font-body);
  font-style: italic;
  font-size: 12px;
}

.field input {
  width: 100%;
  background: var(--bg);
  border: 1px solid var(--hairline);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 18px;
  padding: 11px 13px;
  border-radius: 2px;
  transition: border-color 0.2s ease;
}

.field input::placeholder { color: var(--ink-faint); }

.field input:focus-visible,
.field input:focus {
  outline: none;
  border-color: var(--gold);
}

.field-hint {
  font-family: var(--font-body);
  font-style: italic;
  font-size: 15px;
  color: var(--ink-faint);
  margin: 0;
}

.btn-seek {
  font-family: var(--font-label);
  font-size: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  background: var(--gold);
  color: var(--bg);
  border: none;
  padding: 13px 26px;
  border-radius: 2px;
  cursor: pointer;
  white-space: nowrap;
  transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.2s ease;
}

.btn-seek:hover { box-shadow: 0 8px 22px -10px var(--gold); transform: translateY(-1px); }
.btn-seek:active { transform: translateY(0); }
.btn-seek:focus-visible { outline: 2px solid var(--gold); outline-offset: 3px; }

/* ==========================================================================
   States: empty / loading / error
   ========================================================================== */

.empty-state,
.loading-state,
.error-state {
  text-align: center;
  padding: 64px 20px;
  color: var(--ink-faint);
}

.empty-state-glyph {
  color: var(--gold-dim);
  margin-bottom: 16px;
  display: flex;
  justify-content: center;
}

.empty-state p,
.loading-state p {
  font-size: 19px;
  font-style: italic;
}

.error-state p {
  color: var(--danger);
  font-family: var(--font-body);
  font-size: 18px;
}

.quill {
  width: 3px;
  height: 44px;
  margin: 0 auto 18px;
  position: relative;
}

.quill-nib {
  width: 3px;
  height: 44px;
  background: linear-gradient(to bottom, transparent, var(--gold));
  transform-origin: bottom center;
  animation: quill-write 1.1s ease-in-out infinite;
}

@keyframes quill-write {
  0%, 100% { transform: rotate(-9deg); }
  50% { transform: rotate(9deg); }
}

@media (prefers-reduced-motion: reduce) {
  .quill-nib { animation: none; }
}

/* ==========================================================================
   Results
   ========================================================================== */

.results-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: 18px;
}

.results-header h2 {
  font-family: var(--font-display);
  font-size: 21px;
  font-weight: 600;
  letter-spacing: 0.03em;
  margin: 0;
  color: var(--ink);
}

.results-summary {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--ink-faint);
  margin: 0;
}

.results-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 1px;
  background: var(--hairline);
  border: 1px solid var(--hairline);
  border-radius: 3px;
  overflow: hidden;
}

.result-item {
  background: var(--bg-raised);
}

.result-button {
  width: 100%;
  text-align: left;
  background: transparent;
  border: none;
  color: var(--ink);
  padding: 18px 20px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  font-family: var(--font-body);
  transition: background 0.18s ease;
}

.result-button:hover,
.result-button:focus-visible {
  background: var(--bg-plate);
  outline: none;
}

.result-main { min-width: 0; }

.result-track {
  font-size: 20px;
  font-weight: 500;
  color: var(--ink);
  margin: 0 0 4px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.result-sub {
  font-size: 15px;
  color: var(--ink-dim);
  margin: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.result-meta {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--ink-faint);
}

.result-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--gold-dim);
}

.result-dot.has-synced { background: var(--gold); box-shadow: 0 0 6px var(--gold); }

/* ==========================================================================
   The Illuminated Scroll — signature element
   ========================================================================== */

.scroll-overlay {
  position: fixed;
  inset: 0;
  z-index: 50;
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding: 40px 20px;
  overflow-y: auto;
}

.scroll-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(4, 3, 5, 0.72);
  backdrop-filter: blur(2px);
}

html[data-theme="light"] .scroll-backdrop {
  background: rgba(60, 50, 30, 0.35);
}

.illuminated-scroll {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: 680px;
  background: var(--bg-plate);
  border: 1px solid var(--hairline-strong);
  border-radius: 4px;
  padding: 40px 40px 36px;
  box-shadow: 0 40px 90px -30px rgba(0,0,0,0.65);
  animation: unfurl 0.42s cubic-bezier(0.16, 1, 0.3, 1);
  transform-origin: top center;
}

@keyframes unfurl {
  0% { opacity: 0; transform: scaleY(0.85) translateY(-14px); }
  100% { opacity: 1; transform: scaleY(1) translateY(0); }
}

@media (prefers-reduced-motion: reduce) {
  .illuminated-scroll { animation: none; }
}

.scroll-close {
  position: absolute;
  top: 18px;
  right: 20px;
  background: transparent;
  border: none;
  color: var(--ink-faint);
  font-size: 26px;
  line-height: 1;
  cursor: pointer;
  padding: 6px;
  transition: color 0.2s ease;
}

.scroll-close:hover, .scroll-close:focus-visible { color: var(--gold); outline: none; }

.scroll-eyebrow {
  font-family: var(--font-label);
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--gold-dim);
  margin: 0 0 10px;
}

.scroll-head h2 {
  font-family: var(--font-display);
  font-size: 30px;
  font-weight: 600;
  line-height: 1.15;
  color: var(--ink);
  margin: 0 0 6px;
  padding-right: 28px;
}

.scroll-artist {
  font-size: 19px;
  font-style: italic;
  color: var(--ink-dim);
  margin: 0 0 16px;
}

.scroll-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 24px;
}

.meta-chip {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--ink-dim);
  border: 1px solid var(--hairline);
  padding: 5px 11px;
  border-radius: 999px;
}

.meta-chip-gold {
  color: var(--gold);
  border-color: var(--hairline-strong);
}

.scroll-controls {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 16px 0;
  border-top: 1px solid var(--hairline);
  border-bottom: 1px solid var(--hairline);
  margin-bottom: 24px;
}

.play-seal {
  flex-shrink: 0;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: transparent;
  border: none;
  color: var(--gold);
  cursor: pointer;
  padding: 0;
  transition: color 0.2s ease, transform 0.15s ease;
}

.play-seal:hover { transform: scale(1.06); }
.play-seal:focus-visible { outline: 2px solid var(--gold); outline-offset: 3px; border-radius: 50%; }

.scroll-progress-wrap {
  flex: 1;
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
}

.scroll-progress-track {
  flex: 1;
  height: 2px;
  background: var(--hairline-strong);
  border-radius: 2px;
  cursor: pointer;
  position: relative;
}

.scroll-progress-fill {
  height: 100%;
  width: 0%;
  background: var(--gold);
  border-radius: 2px;
}

.scroll-time {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--ink-faint);
  flex-shrink: 0;
  min-width: 38px;
  text-align: right;
}

.btn-copy {
  flex-shrink: 0;
  margin-left: auto;
  font-family: var(--font-label);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  background: transparent;
  color: var(--ink-dim);
  border: 1px solid var(--hairline-strong);
  padding: 10px 16px;
  border-radius: 999px;
  cursor: pointer;
  white-space: nowrap;
  transition: border-color 0.2s ease, color 0.2s ease;
}

.btn-copy:hover, .btn-copy:focus-visible {
  border-color: var(--gold);
  color: var(--gold);
  outline: none;
}

.btn-copy.copied {
  border-color: var(--gold);
  color: var(--gold);
}

/* Scroll body: plain lyrics vs synced karaoke lines */

.scroll-body {
  max-height: 52vh;
  overflow-y: auto;
  padding-right: 6px;
}

.scroll-body::-webkit-scrollbar { width: 6px; }
.scroll-body::-webkit-scrollbar-thumb { background: var(--hairline-strong); border-radius: 3px; }

.plain-lyrics {
  font-family: var(--font-body);
  font-size: 20px;
  line-height: 1.75;
  color: var(--ink-dim);
  white-space: pre-wrap;
  margin: 0;
}

.instrumental-note {
  font-family: var(--font-body);
  font-style: italic;
  font-size: 18px;
  color: var(--ink-faint);
  text-align: center;
  padding: 30px 0;
}

.synced-lines {
  list-style: none;
  margin: 0;
  padding: 0;
}

.synced-line {
  font-family: var(--font-body);
  font-size: 20px;
  line-height: 1.7;
  color: var(--ink-faint);
  padding: 5px 0;
  transition: color 0.3s ease, transform 0.3s ease;
  cursor: pointer;
}

.synced-line:hover { color: var(--ink-dim); }

.synced-line.is-active {
  color: var(--gold);
  transform: translateX(4px);
}

.synced-line.is-past {
  color: var(--ink-dim);
}

.synced-line-empty { opacity: 0.4; }

/* ==========================================================================
   Responsive
   ========================================================================== */

@media (max-width: 720px) {
  .field-row { grid-template-columns: 1fr; }
  .field-row-action { grid-template-columns: 1fr; }
  .btn-seek { width: 100%; }
  .site-header { flex-direction: column; align-items: stretch; }
  .illuminated-scroll { padding: 32px 22px 28px; }
  .scroll-head h2 { font-size: 25px; }
  .scroll-controls { flex-wrap: wrap; }
  .btn-copy { margin-left: 0; }
}

/* ==========================================================================
   Focus visibility baseline
   ========================================================================== */

button:focus-visible,
a:focus-visible,
input:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: 2px;
}