:root {
  --bg: #0b0508;
  --bg-alt: #170a13;
  --panel: #170a1388;
  --panel-solid: #170a13;
  --gold: #f0a83c;
  --gold-light: #ffd27a;
  --magenta: #ff2ea6;
  --text: #f7ece9;
  --text-muted: #a4899a;
  --border: rgba(240, 168, 60, 0.16);
  --border-strong: rgba(240, 168, 60, 0.32);
  --font-display: 'Cinzel', serif;
  --font-ui: 'Inter', system-ui, sans-serif;
  --font-mono: 'SFMono-Regular', ui-monospace, Menlo, Consolas, monospace;
}

* { box-sizing: border-box; }

/* Bulletproof visibility toggle: this has to beat any component's own
   `display` rule regardless of selector specificity or source order, or a
   later class (e.g. .has-extra) can silently un-hide an element that JS set
   `hidden` on. Hit this exact bug three times before adding this — one rule
   here replaces every one-off `.foo[hidden] { display: none }` override. */
[hidden] { display: none !important; }

html, body { height: 100%; }

body {
  margin: 0;
  color: var(--text);
  font-family: var(--font-ui);
  background:
    radial-gradient(1200px 600px at 15% -10%, rgba(255, 46, 166, 0.10), transparent 60%),
    radial-gradient(900px 500px at 100% 0%, rgba(240, 168, 60, 0.10), transparent 55%),
    var(--bg);
  min-height: 100%;
  padding: clamp(1rem, 3vw, 2.5rem);
}

.mono { font-family: var(--font-mono); font-variant-numeric: tabular-nums; }

.app {
  max-width: 980px;
  margin: 0 auto;
}

/* Header */
.app-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1.25rem;
}

.brand { display: flex; align-items: center; gap: 0.5rem; }
.brand-mark {
  font-size: 1.3rem;
  color: var(--gold-light);
  text-shadow: 0 0 12px rgba(240, 168, 60, 0.6);
}
.brand-name {
  font-family: var(--font-display);
  font-weight: 600;
  letter-spacing: 0.02em;
  font-size: 1.05rem;
  color: var(--text);
}

.symbol-form { display: flex; gap: 0.5rem; }
.symbol-input {
  background: var(--panel-solid);
  border: 1px solid var(--border-strong);
  color: var(--text);
  padding: 0.55rem 0.8rem;
  border-radius: 999px;
  font-size: 0.95rem;
  width: 9rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  transition: box-shadow 0.15s, border-color 0.15s;
}
.symbol-input:focus {
  outline: none;
  border-color: var(--gold);
  box-shadow: 0 0 0 3px rgba(240, 168, 60, 0.18);
}
.go-btn {
  background: linear-gradient(135deg, var(--gold), var(--magenta));
  border: none;
  color: #1a0e08;
  font-weight: 700;
  width: 2.4rem;
  height: 2.4rem;
  border-radius: 999px;
  cursor: pointer;
  font-size: 1rem;
  box-shadow: 0 4px 16px rgba(255, 46, 166, 0.25);
  transition: transform 0.12s;
}
.go-btn:hover { transform: scale(1.06); }
.go-btn:active { transform: scale(0.96); }

/* Quote header */
.quote-header { margin-bottom: 1.1rem; }
.quote-id { display: flex; align-items: baseline; gap: 0.6rem; }
.quote-id h1 {
  font-family: var(--font-display);
  font-size: 1.7rem;
  margin: 0;
  color: var(--text);
  letter-spacing: 0.02em;
}
.quote-range-label {
  font-size: 0.8rem;
  color: var(--text-muted);
  border: 1px solid var(--border);
  padding: 0.1rem 0.55rem;
  border-radius: 999px;
}
.quote-price-row { display: flex; align-items: baseline; gap: 0.8rem; margin-top: 0.3rem; }
.quote-price { font-size: 2.4rem; font-weight: 600; line-height: 1; color: var(--text); }
.quote-change { font-size: 1rem; padding: 0.15rem 0; }
.quote-change.is-up { color: var(--gold-light); text-shadow: 0 0 10px rgba(240, 168, 60, 0.35); }
.quote-change.is-down { color: var(--magenta); text-shadow: 0 0 10px rgba(255, 46, 166, 0.35); }

/* Toolbar */
.toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 0.9rem;
  flex-wrap: wrap;
}

.pills, .mode-toggle, .instrument-toggle {
  display: flex;
  gap: 0.25rem;
  background: var(--panel-solid);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 0.25rem;
}

.pill, .mode-btn {
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-family: var(--font-ui);
  font-size: 0.8rem;
  font-weight: 600;
  padding: 0.4rem 0.75rem;
  border-radius: 999px;
  cursor: pointer;
  transition: background 0.15s, color 0.15s;
}
.mode-btn { font-size: 0.95rem; padding: 0.35rem 0.65rem; }

.pill:hover, .mode-btn:hover { color: var(--text); }
.pill.is-active, .mode-btn.is-active {
  background: linear-gradient(135deg, rgba(240, 168, 60, 0.9), rgba(255, 46, 166, 0.85));
  color: #1a0e08;
  box-shadow: 0 2px 10px rgba(255, 46, 166, 0.25);
}

/* Chart */
.chart-panel {
  background: linear-gradient(180deg, rgba(23, 10, 19, 0.7), rgba(11, 5, 8, 0.5));
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 1rem;
  backdrop-filter: blur(6px);
}

.chart-frame {
  position: relative;
  width: 100%;
  height: min(46vh, 420px);
  min-height: 260px;
}

.chart-frame canvas { display: block; width: 100%; height: 100%; cursor: crosshair; }

.chart-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  font-size: 0.9rem;
  background: rgba(11, 5, 8, 0.35);
  border-radius: 12px;
  backdrop-filter: blur(2px);
}

.chart-tooltip {
  position: absolute;
  top: 0.5rem;
  right: 0.5rem;
  background: rgba(11, 5, 8, 0.88);
  border: 1px solid var(--border-strong);
  border-radius: 10px;
  padding: 0.55rem 0.7rem;
  font-size: 0.78rem;
  color: var(--text-muted);
  pointer-events: none;
  min-width: 8.5rem;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
}
.tt-date { color: var(--text); font-weight: 600; margin-bottom: 0.3rem; }
.tt-row { display: flex; justify-content: space-between; gap: 1rem; }
.tt-row span { color: var(--text-muted); }
.tt-close { color: var(--text); font-weight: 600; }
.tt-up { color: var(--gold-light); }
.tt-down { color: var(--magenta); }

/* Transport panel */
.transport-panel {
  display: flex;
  align-items: center;
  gap: 1.1rem;
  margin-top: 0.9rem;
  padding: 1rem 1.2rem;
  background: linear-gradient(180deg, rgba(23, 10, 19, 0.7), rgba(11, 5, 8, 0.5));
  border: 1px solid var(--border);
  border-radius: 16px;
  backdrop-filter: blur(6px);
}

.instrument-toggle { flex: 0 0 auto; }

.play-btn {
  flex: 0 0 auto;
  width: 3.2rem;
  height: 3.2rem;
  border-radius: 999px;
  border: none;
  background: linear-gradient(135deg, var(--gold), var(--magenta));
  color: #1a0e08;
  font-size: 1.1rem;
  cursor: pointer;
  box-shadow: 0 4px 18px rgba(255, 46, 166, 0.28);
  transition: transform 0.12s, box-shadow 0.2s;
}
.play-btn:hover { transform: scale(1.05); }
.play-btn:active { transform: scale(0.95); }
.play-btn.is-playing {
  box-shadow: 0 0 0 4px rgba(255, 46, 166, 0.22), 0 4px 22px rgba(255, 46, 166, 0.4);
  animation: pulse-glow 1.6s ease-in-out infinite;
}
@keyframes pulse-glow {
  0%, 100% { box-shadow: 0 0 0 4px rgba(255, 46, 166, 0.18), 0 4px 18px rgba(255, 46, 166, 0.3); }
  50% { box-shadow: 0 0 0 8px rgba(255, 46, 166, 0.08), 0 4px 26px rgba(255, 46, 166, 0.5); }
}

.transport-controls {
  flex: 1 1 auto;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.9rem 1.2rem;
}
.transport-controls.has-extra {
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
}
.control-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.9rem 1.2rem;
}

.compare-row { display: flex; flex-direction: column; gap: 0.35rem; }
.compare-row label {
  display: flex;
  gap: 0.5rem;
  align-items: baseline;
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted);
}
.compare-row .hint { text-transform: none; letter-spacing: normal; font-size: 0.68rem; opacity: 0.75; }
.compare-input {
  width: 100%;
  background: #1d0f1a;
  border: 1px solid var(--border);
  color: var(--text);
  padding: 0.5rem 0.75rem;
  border-radius: 8px;
  font-size: 0.85rem;
  letter-spacing: 0.02em;
}
.compare-input:focus { outline: none; border-color: var(--gold); box-shadow: 0 0 0 3px rgba(240, 168, 60, 0.15); }
.compare-status { font-size: 0.72rem; color: var(--text-muted); margin: 0; }
.compare-status.has-issue { color: #ffb3dc; }

.control { display: flex; flex-direction: column; gap: 0.35rem; }
.control label {
  display: flex;
  justify-content: space-between;
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted);
}
.control label span { color: var(--gold-light); text-transform: none; letter-spacing: normal; }

.control input[type="range"] {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 4px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--gold), var(--magenta));
  opacity: 0.85;
  cursor: pointer;
}
.control input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--text);
  border: 2px solid var(--gold);
  box-shadow: 0 0 8px rgba(240, 168, 60, 0.6);
  cursor: pointer;
}
.control input[type="range"]::-moz-range-thumb {
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--text);
  border: 2px solid var(--gold);
  box-shadow: 0 0 8px rgba(240, 168, 60, 0.6);
  cursor: pointer;
}

.control-toggle { justify-content: center; }
.switch {
  position: relative;
  display: inline-block;
  width: 2.4rem;
  height: 1.3rem;
  cursor: pointer;
}
.switch input {
  position: absolute;
  opacity: 0;
  width: 100%;
  height: 100%;
  margin: 0;
  cursor: pointer;
}
.switch-track {
  position: absolute;
  inset: 0;
  background: rgba(199, 171, 184, 0.18);
  border: 1px solid var(--border-strong);
  border-radius: 999px;
  transition: background 0.15s;
}
.switch-track::before {
  content: '';
  position: absolute;
  top: 1px;
  left: 1px;
  width: 1rem;
  height: 1rem;
  border-radius: 50%;
  background: var(--text);
  transition: transform 0.15s;
}
.switch input:checked ~ .switch-track {
  background: linear-gradient(135deg, var(--gold), var(--magenta));
}
.switch input:checked ~ .switch-track::before {
  transform: translateX(1.1rem);
}

@media (max-width: 640px) {
  .transport-panel { flex-direction: column; align-items: stretch; }
  .transport-controls, .control-grid { grid-template-columns: repeat(2, 1fr); }
  .control label { flex-direction: column; align-items: flex-start; gap: 0.15rem; }
}

/* Scrub keyboard */
.keyboard-panel {
  margin-top: 0.9rem;
  padding: 1rem 1.1rem 0.7rem;
  background: linear-gradient(180deg, rgba(23, 10, 19, 0.7), rgba(11, 5, 8, 0.5));
  border: 1px solid var(--border);
  border-radius: 16px;
  backdrop-filter: blur(6px);
}

.piano-wrap {
  position: relative;
  width: 100%;
  height: 92px;
  user-select: none;
}

.white-keys {
  display: flex;
  width: 100%;
  height: 100%;
  gap: 1px;
}

.white-key {
  flex: 1 1 auto;
  background: linear-gradient(180deg, #f7ece9, #e4d3ce);
  border: 1px solid rgba(11, 5, 8, 0.55);
  border-radius: 0 0 6px 6px;
  cursor: pointer;
  touch-action: none;
  display: flex;
  align-items: flex-end;
  justify-content: center;
  padding-bottom: 5px;
  font-family: var(--font-mono);
  font-size: 0.62rem;
  color: rgba(11, 5, 8, 0.5);
  transition: background 0.05s;
}
.white-key.is-pressed {
  background: linear-gradient(180deg, var(--gold-light), var(--gold));
  color: #1a0e08;
}

.black-key {
  position: absolute;
  top: 0;
  width: 22px;
  height: 56%;
  background: #140a10;
  border: 1px solid rgba(0, 0, 0, 0.6);
  border-radius: 0 0 5px 5px;
  z-index: 2;
  cursor: pointer;
  touch-action: none;
  transition: background 0.05s;
}
.black-key.is-pressed {
  background: var(--magenta);
}

.keyboard-hint {
  margin: 0.6rem 0 0;
  font-size: 0.72rem;
  color: var(--text-muted);
  text-align: center;
}

@media (max-width: 640px) {
  .piano-wrap { height: 108px; }
  .black-key { width: 18px; }
}

.status {
  margin-top: 0.8rem;
  padding: 0.6rem 0.9rem;
  border-radius: 10px;
  background: rgba(255, 46, 166, 0.08);
  border: 1px solid rgba(255, 46, 166, 0.3);
  color: #ffb3dc;
  font-size: 0.85rem;
}

@media (max-width: 560px) {
  .app-header { flex-direction: column; align-items: flex-start; }
  .quote-price { font-size: 1.9rem; }
  .toolbar { flex-direction: column; align-items: stretch; }
  .pills { overflow-x: auto; }
}