/* Track Generator — app styles */
:root {
  /* Unified with Track Generator landing */
  --bg: #070a0c;
  --panel: #11181c;
  --panel-hi: #172025;
  --border: #243036;
  --border-hi: #2f3d45;
  --text: #e8f0f2;
  --text-dim: #8aa0a8;
  --text-mute: #5c7078;
  --accent: #2ef2c2;
  --accent-hi: #5affe0;
  --accent-dim: #1ad4b0;
  --alt: #ff6b47;
  --warn: #ffc857;
  --cyan-dim: rgba(46, 242, 194, 0.15);
  --font: "JetBrains Mono", "SF Mono", "Consolas", "Menlo", monospace;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html, body { background: var(--bg); color: var(--text); }
body {
  font-family: var(--font);
  font-size: 14px;
  line-height: 1.6;
  min-height: 100vh;
  min-height: 100dvh;
  padding: 32px 24px 40px;
  -webkit-font-smoothing: antialiased;
  display: flex;
  flex-direction: column;
}
body::before {
  content: '';
  position: fixed; inset: 0;
  background-image:
    linear-gradient(rgba(46,242,194,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(46,242,194,0.03) 1px, transparent 1px);
  background-size: 24px 24px;
  pointer-events: none;
  z-index: 0;
}
/* Photo background */
#app-bg {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background-color: #070a0c;
  background-image: url("img/headphones.jpg");
  background-position: center center;
  background-size: cover;
  background-repeat: no-repeat;
  opacity: 0.75;
  filter: saturate(1.15) contrast(1.08);
}
#app-bg-scrim {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background:
    radial-gradient(ellipse 60% 40% at 50% 0%, rgba(46,242,194,0.1), transparent 55%),
    linear-gradient(180deg, rgba(7,10,12,0.2) 0%, rgba(7,10,12,0.4) 55%, rgba(7,10,12,0.55) 100%);
}
body::after { content: none !important; display: none !important; }
.container {
  max-width: 920px;
  margin: 0 auto;
  position: relative;
  z-index: 1;
  /* grow to fill the viewport so the footer stays at the bottom */
  flex: 1 0 auto;
  width: 100%;
  display: flex;
  flex-direction: column;
}
header {
  margin-bottom: 40px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: baseline;
  gap: 12px;
  flex-wrap: wrap;
}
.logo {
  font-size: 18px;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--text);
}
.logo::before {
  content: '◆';
  color: var(--accent);
  margin-right: 8px;
}
.version {
  font-size: 10px;
  color: var(--text-mute);
  padding: 3px 8px;
  border: 1px solid var(--border);
  letter-spacing: 0.1em;
}
.subtitle {
  font-size: 11px;
  color: var(--text-dim);
  margin-left: auto;
  letter-spacing: 0.04em;
}
.label {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-dim);
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.label::before {
  content: '';
  width: 6px; height: 6px;
  background: var(--border-hi);
}
.mode-tabs {
  display: flex;
  gap: 2px;
  margin-bottom: 24px;
  padding: 2px;
  border: 1px solid var(--border);
  background: var(--panel);
}
.mode-tab {
  flex: 1;
  padding: 12px 8px;
  background: transparent;
  border: none;
  color: var(--text-dim);
  font-family: inherit;
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  cursor: pointer;
  transition: all 150ms ease;
}
.mode-tab:hover { color: var(--text); background: var(--panel-hi); }
.mode-tab.active {
  background: var(--accent);
  color: var(--bg);
  font-weight: 700;
}
.config-panel {
  background: var(--panel);
  border: 1px solid var(--border);
  padding: 24px;
  margin-bottom: 20px;
}
.field { margin-bottom: 24px; }
.field:last-child { margin-bottom: 0; }
select {
  width: 100%;
  padding: 12px 14px;
  background: var(--bg);
  border: 1px solid var(--border-hi);
  color: var(--text);
  font-family: inherit;
  font-size: 13px;
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%238A8B85' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
  outline: none;
}
select:focus { border-color: var(--accent); }
.genre-checks {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 4px;
}
.genre-check {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  background: var(--bg);
  border: 1px solid var(--border);
  cursor: pointer;
  transition: all 120ms ease;
  font-size: 12px;
  user-select: none;
}
.genre-check:hover { border-color: var(--border-hi); background: var(--panel-hi); }
.genre-check input { width: 14px; height: 14px; accent-color: var(--accent); cursor: pointer; }
.genre-check.checked { border-color: var(--accent-dim); }
.check-actions {
  display: flex;
  gap: 8px;
  margin-top: 8px;
}
.bridge-note {
  padding: 12px 14px;
  margin-bottom: 20px;
  background: rgba(255,200,87,0.05);
  border: 1px solid rgba(255,200,87,0.2);
  border-left: 2px solid var(--warn);
  color: var(--text-dim);
  font-size: 11px;
  line-height: 1.6;
  letter-spacing: 0.02em;
}
.bridge-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.bridge-grid .field { margin-bottom: 20px; }
@media (max-width: 640px) {
  .bridge-grid { grid-template-columns: 1fr; gap: 0; }
}
.prompt-subhead {
  padding: 10px 20px;
  border-bottom: 1px solid var(--border);
  font-size: 10px;
  color: var(--text-mute);
  letter-spacing: 0.04em;
  background: rgba(255,200,87,0.03);
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
}
.prompt-subhead .item { display: flex; gap: 6px; align-items: baseline; }
.prompt-subhead .lbl { color: var(--text-mute); text-transform: uppercase; letter-spacing: 0.1em; font-weight: 500; }
.prompt-subhead .val { color: var(--warn); }
.prompt-tag.bridge-tag { color: var(--warn); border-color: rgba(255,200,87,0.35); }
.mini-btn {
  padding: 4px 10px;
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text-mute);
  font-family: inherit;
  font-size: 10px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  cursor: pointer;
  transition: all 150ms ease;
}
.mini-btn:hover { color: var(--text-dim); border-color: var(--border-hi); }

.weight-container { padding: 8px 0 4px; }
.weight-labels {
  display: flex;
  justify-content: space-between;
  margin-bottom: 12px;
  font-size: 12px;
  letter-spacing: 0.04em;
}
.weight-labels .genre-a { color: var(--accent); transition: opacity 150ms; }
.weight-labels .genre-b { color: var(--alt); transition: opacity 150ms; }
.weight-slider {
  position: relative;
  height: 44px;
  background: var(--bg);
  border: 1px solid var(--border-hi);
  display: flex;
  align-items: center;
}
.weight-fill-a {
  position: absolute; left: 0; top: 0; bottom: 0;
  background: linear-gradient(90deg, rgba(46,242,194,0.35), rgba(46,242,194,0.05));
  pointer-events: none;
  transition: width 100ms ease;
}
.weight-fill-b {
  position: absolute; right: 0; top: 0; bottom: 0;
  background: linear-gradient(-90deg, rgba(255,107,71,0.35), rgba(255,107,71,0.05));
  pointer-events: none;
  transition: width 100ms ease;
}
.weight-slider input[type=range] {
  width: 100%;
  appearance: none;
  background: transparent;
  cursor: ew-resize;
  z-index: 2;
  position: relative;
  height: 44px;
  margin: 0;
  outline: none;
}
.weight-slider input[type=range]::-webkit-slider-thumb {
  appearance: none;
  width: 4px; height: 44px;
  background: var(--text);
  cursor: ew-resize;
  border-radius: 0;
  box-shadow: 0 0 0 1px var(--bg);
}
.weight-slider input[type=range]::-moz-range-thumb {
  width: 4px; height: 44px;
  background: var(--text);
  border: none; border-radius: 0;
  cursor: ew-resize;
  box-shadow: 0 0 0 1px var(--bg);
}
.weight-value {
  text-align: center;
  margin-top: 12px;
  font-size: 12px;
  color: var(--text-dim);
  letter-spacing: 0.06em;
}
.weight-value .pct-a { color: var(--accent); font-weight: 500; }
.weight-value .pct-b { color: var(--alt); font-weight: 500; }
.count-input {
  display: flex;
  align-items: center;
  gap: 20px;
}
.count-input input[type=range] {
  flex: 1;
  accent-color: var(--accent);
  height: 4px;
}
.count-value {
  min-width: 42px;
  text-align: right;
  font-size: 22px;
  font-weight: 500;
  color: var(--accent);
  letter-spacing: 0.02em;
  font-variant-numeric: tabular-nums;
}
.generate-btn {
  width: 100%;
  padding: 18px;
  background: var(--accent);
  border: none;
  color: var(--bg);
  font-family: inherit;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  cursor: pointer;
  transition: all 150ms ease;
  margin-bottom: 40px;
}
.generate-btn:hover { background: var(--accent-hi); }
.generate-btn:active { transform: translateY(1px); }
.generate-btn:disabled { background: var(--panel); color: var(--text-mute); cursor: not-allowed; }
.output-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border);
  gap: 12px;
  flex-wrap: wrap;
}
.output-count {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-dim);
}
.output-count span { color: var(--accent); }
.output-actions { display: flex; gap: 8px; }
.action-btn {
  padding: 8px 14px;
  background: transparent;
  border: 1px solid var(--border-hi);
  color: var(--text-dim);
  font-family: inherit;
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  cursor: pointer;
  transition: all 150ms ease;
}
.action-btn:hover { color: var(--text); border-color: var(--text-dim); }
.action-btn.copied { color: var(--accent); border-color: var(--accent); }
.prompt-card {
  background: var(--panel);
  border: 1px solid var(--border);
  margin-bottom: 16px;
  animation: fadeIn 250ms ease both;
}
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(4px); }
  to { opacity: 1; transform: translateY(0); }
}
.prompt-header {
  padding: 14px 20px;
  border-bottom: 1px solid var(--border);
  display: flex;
  gap: 14px;
  align-items: center;
  flex-wrap: wrap;
  font-size: 11px;
  letter-spacing: 0.06em;
}
.prompt-num {
  color: var(--accent);
  font-weight: 700;
  font-variant-numeric: tabular-nums;
}
.prompt-meta {
  color: var(--text);
  font-weight: 500;
  flex: 1;
  min-width: 0;
}
.prompt-tag {
  padding: 3px 8px;
  background: var(--bg);
  border: 1px solid var(--border-hi);
  color: var(--text-dim);
  text-transform: lowercase;
  font-size: 10px;
  letter-spacing: 0.04em;
  font-weight: 500;
}
.prompt-tag.weight { color: var(--warn); border-color: var(--warn); }
.prompt-block {
  padding: 18px 20px;
  border-bottom: 1px solid var(--border);
}
.prompt-block:last-child { border-bottom: none; }
.block-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 10px;
  gap: 12px;
}
.block-label {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-mute);
}
.block-label .hint {
  color: var(--text-dim);
  font-weight: 400;
  letter-spacing: 0.06em;
  text-transform: none;
  margin-left: 6px;
}
.copy-btn {
  padding: 5px 11px;
  background: transparent;
  border: 1px solid var(--border-hi);
  color: var(--text-dim);
  font-family: inherit;
  font-size: 10px;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  cursor: pointer;
  transition: all 150ms ease;
  white-space: nowrap;
}
.copy-btn:hover { color: var(--accent); border-color: var(--accent); }
.copy-btn.copied { color: var(--accent); border-color: var(--accent); }
.block-head-btns { display: flex; gap: 6px; flex-wrap: wrap; }
.open-partner {
  color: var(--zone-prompt);
  border-color: rgba(167,139,250,0.3);
}
.open-partner:hover {
  color: var(--zone-prompt);
  border-color: var(--zone-prompt);
  background: rgba(167,139,250,0.07);
}



/* ---------- CARD ZONES ----------
   Prompt / Structure / Musical DNA each get their own hue so a long card
   reads as three areas instead of one wall of teal. */
:root {
  --zone-prompt: #a78bfa;      /* violet — text you copy into Suno */
  --zone-prompt-bg: rgba(167,139,250,0.04);
  --zone-prompt-line: rgba(167,139,250,0.22);
  --zone-struct: #ffc857;      /* amber — the arrangement form */
  --zone-struct-bg: rgba(255,200,87,0.035);
  --zone-struct-line: rgba(255,200,87,0.22);
  --zone-dna: #2ef2c2;         /* mint — anything that makes sound */
  --zone-dna-bg: rgba(46,242,194,0.04);
  --zone-dna-line: rgba(46,242,194,0.24);
}

/* Style and Structure side by side on the Gen card too */
.prompt-pair {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  background: var(--border);
}
@media (max-width: 700px) { .prompt-pair { grid-template-columns: 1fr; } }
.prompt-pair .prompt-block { border-bottom: none; }
.prompt-pair .block-content { max-height: 120px; overflow: auto; }

/* zone: prompt text */
.prompt-block.zone-prompt {
  background: var(--zone-prompt-bg);
  border-left: 2px solid var(--zone-prompt-line);
}
.prompt-block.zone-prompt .block-label { color: var(--zone-prompt); }
.prompt-block.zone-prompt .copy-btn:hover,
.prompt-block.zone-prompt .copy-btn.copied {
  color: var(--zone-prompt); border-color: var(--zone-prompt);
}

/* zone: structure map */
.prompt-block.zone-struct {
  background: var(--zone-struct-bg);
  border-left: 2px solid var(--zone-struct-line);
}
.prompt-block.zone-struct .block-label { color: var(--zone-struct); }
.prompt-block.zone-struct .copy-btn:hover,
.prompt-block.zone-struct .copy-btn.copied {
  color: var(--zone-struct); border-color: var(--zone-struct);
}
.prompt-block.zone-struct .bracket { color: var(--zone-struct); }

/* zone: musical DNA — keeps the brand mint, sits visually lowest and loudest */
.dna-block {
  background: var(--zone-dna-bg);
  border-top: 1px solid var(--zone-dna-line) !important;
  border-left: 2px solid var(--zone-dna-line);
}
.dna-block .block-label { color: var(--zone-dna); }

/* the card header carries a hairline in the prompt hue so the top reads first */
.prompt-header {
  border-bottom: 1px solid var(--border);
  box-shadow: inset 0 -1px 0 var(--zone-prompt-line);
}

/* Musical DNA block */
.dna-buttons {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}
.dna-btn {
  padding: 8px 12px;
  background: transparent;
  border: 1px solid var(--border-hi);
  color: var(--text-dim);
  font-family: inherit;
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.06em;
  cursor: pointer;
  transition: all 150ms ease;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.dna-btn:hover { color: var(--accent); border-color: var(--accent); background: rgba(46,242,194,0.05); }
.dna-btn.brief-btn:hover { color: var(--warn); border-color: var(--warn); background: rgba(255,200,87,0.05); }
.dna-btn .icon { font-size: 14px; }
.dna-btn .fname { color: var(--text-mute); }
.dna-btn.copied { color: var(--accent); border-color: var(--accent); }

/* DNA track blocks (Chords / Bass / Melody with piano roll) */
.dna-sections {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  margin: 10px 0 4px;
}
.sec-chip {
  font-size: 9px;
  letter-spacing: 0.06em;
  padding: 3px 8px;
  border: 1px solid var(--border-hi);
  color: var(--text-mute);
  text-transform: uppercase;
}
.sec-chip strong { font-weight: 700; }
.sec-intro     { border-color: rgba(138,139,133,0.35); }
.sec-intro strong { color: var(--text-dim); }
.sec-build     { border-color: rgba(255,200,87,0.35); }
.sec-build strong { color: var(--warn); }
.sec-drop      { border-color: rgba(255,107,71,0.45); background: rgba(255,107,71,0.05); }
.sec-drop strong { color: var(--accent); }
.sec-breakdown { border-color: rgba(46,242,194,0.35); }
.sec-breakdown strong { color: var(--accent); }
.sec-outro     { border-color: rgba(138,139,133,0.3); }
.sec-outro strong { color: var(--text-dim); }
.dna-track {
  margin-top: 12px;
  border: 1px solid var(--border);
  background: var(--bg);
}
.dna-toolbar {
  display: flex;
  gap: 8px;
  align-items: center;
  margin: 10px 0 2px;
  flex-wrap: wrap;
}
.dna-role-picker {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  margin: 10px 0 4px;
}
.role-chip {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 5px 9px;
  background: var(--bg);
  border: 1px solid var(--border);
  font-size: 10px;
  letter-spacing: 0.02em;
  color: var(--text-mute);
  cursor: pointer;
  user-select: none;
  transition: all 120ms ease;
}
.role-chip:hover { border-color: var(--border-hi); color: var(--text-dim); }
.role-chip.on { border-color: var(--accent); color: var(--text); background: rgba(46,242,194,0.05); }
.role-chip input { width: 12px; height: 12px; accent-color: var(--accent); cursor: pointer; margin: 0; }
.voice-sel {
  padding: 5px 8px;
  background: var(--bg);
  border: 1px solid var(--border-hi);
  color: var(--text-dim);
  font-family: inherit;
  font-size: 10px;
  cursor: pointer;
  outline: none;
  max-width: 120px;
}
.voice-sel:focus { border-color: var(--accent); }
.dna-play-all { padding: 6px 12px; font-size: 10px; }
.dna-play-all.playing { color: var(--accent); border-color: var(--accent); background: rgba(46,242,194,0.08); }
.dna-stop-all { padding: 6px 10px; font-size: 10px; }
.dna-mix-wav { padding: 6px 12px; font-size: 10px; }
.dna-drummap {
  padding: 6px 10px;
  background: var(--bg);
  border: 1px solid var(--border-hi);
  color: var(--text-dim);
  font-family: inherit;
  font-size: 10px;
  cursor: pointer;
  outline: none;
}
.dna-drummap:focus { border-color: var(--accent); }
.dna-all-mid { padding: 6px 12px; font-size: 10px; }
.take-badge {
  color: var(--accent);
  font-size: 9px;
  font-weight: 500;
  letter-spacing: 0.04em;
}
.dna-regen, .dna-keep {
  padding: 6px 9px;
  font-size: 11px;
  min-width: 30px;
  justify-content: center;
}
.dna-roll .var-canvas { height: 72px; }
.dna-track:first-of-type { margin-top: 10px; }
.dna-track-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 12px;
  border-bottom: 1px solid var(--border);
  gap: 10px;
}
.dna-track-label {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--text);
  display: flex;
  align-items: center;
  gap: 6px;
}
.voice-tag {
  font-size: 9px;
  font-weight: 400;
  letter-spacing: 0.06em;
  color: var(--accent);
  background: rgba(46,242,194,0.1);
  border: 1px solid rgba(46,242,194,0.25);
  padding: 2px 6px;
  text-transform: lowercase;
}
.dna-track-btns {
  display: flex;
  gap: 6px;
  flex-shrink: 0;
}
.dna-track-btns .var-play {
  padding: 6px 10px;
  min-width: 34px;
  font-size: 11px;
}
.dna-track-btns .dna-btn {
  padding: 6px 10px;
  font-size: 10px;
}
.dna-roll {
  padding: 0;
}
.dna-roll .var-canvas {
  height: 88px;
}

/* Modal */
.modal {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}
.modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(15,17,20,0.85);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
}
.modal-card {
  position: relative;
  background: var(--panel);
  border: 1px solid var(--border-hi);
  max-width: 780px;
  width: 100%;
  max-height: 88vh;
  display: flex;
  flex-direction: column;
  animation: modalIn 200ms ease;
}
@keyframes modalIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}
.modal-head {
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.modal-title {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--warn);
}
.modal-close {
  background: transparent;
  border: none;
  color: var(--text-dim);
  cursor: pointer;
  font-size: 18px;
  padding: 4px 8px;
  font-family: inherit;
}
.modal-close:hover { color: var(--text); }
.modal-body {
  padding: 20px;
  overflow: auto;
  flex: 1;
  font-family: var(--font);
  font-size: 11px;
  line-height: 1.6;
  color: var(--text);
  background: var(--bg);
  margin: 0;
  white-space: pre;
  min-height: 0;
}
.modal-foot {
  padding: 12px 20px;
  border-top: 1px solid var(--border);
  display: flex;
  gap: 8px;
  justify-content: flex-end;
}
.block-content {
  font-size: 12px;
  line-height: 1.75;
  color: var(--text);
  white-space: pre-wrap;
  word-break: break-word;
}
.block-content.structure-content { color: var(--text-dim); }
.bracket { color: var(--warn); }

/* View switcher (GEN / LAB) */
.view-switch {
  display: flex;
  gap: 2px;
  padding: 2px;
  border: 1px solid var(--border);
  background: var(--panel);
  margin-left: auto;
}
.view-btn {
  padding: 6px 12px;
  background: transparent;
  border: none;
  color: var(--text-dim);
  font-family: inherit;
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.08em;
  cursor: pointer;
  transition: all 150ms ease;
}
.view-btn:hover { color: var(--text); }
.view-btn.active {
  background: var(--accent);
  color: var(--bg);
  font-weight: 700;
}

/* Library */
.lib-count {
  display: inline-block;
  margin-left: 5px;
  font-size: 9px;
  padding: 1px 5px;
  background: var(--accent);
  color: var(--bg);
  font-weight: 700;
  min-width: 14px;
  text-align: center;
}
.view-btn.active .lib-count { background: var(--bg); color: var(--accent); }
.lib-intro {
  padding: 12px 14px;
  margin-bottom: 16px;
  background: rgba(46,242,194,0.05);
  border: 1px solid rgba(46,242,194,0.2);
  border-left: 2px solid var(--accent);
  color: var(--text-dim);
  font-size: 11px;
  line-height: 1.7;
}
.lib-intro .hi { color: var(--accent); font-weight: 500; }
.lib-toolbar {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  align-items: center;
  margin-bottom: 14px;
}
.lib-toolbar .dna-btn { padding: 8px 12px; font-size: 10px; }
.lib-danger:hover { color: #F87070; border-color: #F87070; background: rgba(248,112,112,0.05); }
.lib-status { font-size: 10px; color: var(--text-mute); margin-left: auto; }
.lib-filters { display: flex; gap: 4px; flex-wrap: wrap; }
.lib-filter {
  padding: 7px 12px;
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text-mute);
  font-family: inherit;
  font-size: 10px;
  letter-spacing: 0.06em;
  cursor: pointer;
  transition: all 120ms ease;
}
.lib-filter:hover { color: var(--text-dim); border-color: var(--border-hi); }
.lib-filter.active { background: var(--accent); color: var(--bg); border-color: var(--accent); font-weight: 700; }
.lib-card {
  background: var(--panel);
  border: 1px solid var(--border);
  margin-bottom: 8px;
  animation: fadeIn 200ms ease both;
}
.lib-card-head {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  flex-wrap: wrap;
}
.lib-icon { font-size: 14px; min-width: 20px; text-align: center; }
.lib-prompt .lib-icon { color: var(--accent); }
.lib-set .lib-icon { color: var(--warn); }
.lib-motif .lib-icon { color: var(--accent); }
.lib-meta { flex: 1; min-width: 160px; }
.lib-title {
  font-size: 12px;
  font-weight: 500;
  color: var(--text);
  margin-bottom: 3px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.lib-sub { font-size: 10px; color: var(--text-mute); letter-spacing: 0.02em; }
.lib-when { font-size: 9px; color: var(--text-mute); white-space: nowrap; }
.lib-actions { display: flex; gap: 5px; flex-shrink: 0; }
.lib-actions .action-btn { padding: 6px 10px; font-size: 10px; }
.lib-del:hover { color: #F87070; border-color: #F87070; }

/* Journey Planner */
.set-intro {
  padding: 12px 14px;
  margin-bottom: 20px;
  background: rgba(255,200,87,0.05);
  border: 1px solid rgba(255,200,87,0.2);
  border-left: 2px solid var(--warn);
  color: var(--text-dim);
  font-size: 11px;
  line-height: 1.7;
}
.set-intro .hi { color: var(--warn); font-weight: 500; }
.set-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}
@media (max-width: 640px) { .set-grid { grid-template-columns: 1fr; } }
.set-hint {
  margin-top: 6px;
  font-size: 10px;
  color: var(--text-mute);
  line-height: 1.5;
}
.set-curve {
  display: flex;
  align-items: flex-end;
  gap: 3px;
  height: 130px;
  padding: 12px 14px 8px;
  background: var(--bg);
  border: 1px solid var(--border);
  margin-bottom: 16px;
}
.curve-col {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  height: 100%;
  gap: 3px;
}
.curve-bar-wrap {
  flex: 1;
  width: 100%;
  display: flex;
  align-items: flex-end;
}
.curve-bar {
  width: 100%;
  background: linear-gradient(180deg, var(--accent), rgba(46,242,194,0.25));
  transition: height 250ms ease;
}
.curve-lbl { font-size: 9px; color: var(--text-mute); }
.curve-bpm { font-size: 9px; color: var(--text-dim); font-variant-numeric: tabular-nums; }
.set-card {
  background: var(--panel);
  border: 1px solid var(--border);
  margin-bottom: 10px;
  animation: fadeIn 250ms ease both;
}
.set-card-head {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
}
.set-num {
  color: var(--accent);
  font-weight: 700;
  font-size: 13px;
  font-variant-numeric: tabular-nums;
  min-width: 26px;
}
.set-meta { flex: 1; min-width: 0; }
.set-genre {
  font-size: 12px;
  font-weight: 500;
  color: var(--text);
  margin-bottom: 4px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.set-bridge-tag {
  font-size: 9px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  border: 1px solid rgba(46,242,194,0.35);
  padding: 1px 6px;
  font-weight: 400;
}
.set-sub {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  font-size: 10px;
  color: var(--text-mute);
  align-items: baseline;
}
.set-role {
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}
.set-camelot {
  color: var(--warn);
  font-weight: 700;
  border: 1px solid rgba(255,200,87,0.3);
  padding: 1px 6px;
}
.set-bpm { color: var(--text-dim); font-variant-numeric: tabular-nums; }
.set-delta { font-variant-numeric: tabular-nums; font-size: 9px; }
.set-delta.up { color: var(--accent); }
.set-delta.down { color: var(--accent); }
.set-trick {
  color: var(--warn);
  border: 1px solid rgba(255,200,87,0.3);
  padding: 1px 6px;
  font-size: 9px;
  letter-spacing: 0.04em;
}
.set-move { font-style: normal; opacity: 0.75; }
.set-copy-style, .set-copy-struct { padding: 6px 10px; font-size: 10px; }
.set-prompt-body {
  display: none;
  border-top: 1px solid var(--border);
  padding: 14px 16px;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}
.set-prompt-body.open { display: grid; }
@media (max-width: 700px) { .set-prompt-body { grid-template-columns: 1fr; } }
.set-prompt-label {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-mute);
  margin-bottom: 6px;
}
.set-prompt-text {
  font-size: 11px;
  line-height: 1.7;
  color: var(--text-dim);
  white-space: pre-wrap;
  word-break: break-word;
  margin-bottom: 14px;
}
.set-prompt-text:last-child { margin-bottom: 0; }

.set-prompt-text { max-height: 120px; overflow: auto; }

/* set card zones — same logic as the Gen card, tighter spacing */
.set-prompt-body .zone-prompt-row {
  background: var(--zone-prompt-bg);
  border-left: 2px solid var(--zone-prompt-line);
  padding: 12px 14px;
  margin-bottom: 10px;
}
.set-prompt-body .zone-prompt-row .set-prompt-label { color: var(--zone-prompt); }
.set-prompt-label {
  display: flex; align-items: baseline; gap: 8px; flex-wrap: wrap;
}
.set-prompt-hint {
  font-size: 10px; font-weight: 400; letter-spacing: 0.02em;
  text-transform: none; color: var(--text-mute);
}
.set-prompt-body .zone-struct-row {
  background: var(--zone-struct-bg);
  border-left: 2px solid var(--zone-struct-line);
  padding: 12px 14px;
}
.set-prompt-body .zone-struct-row .set-prompt-label { color: var(--zone-struct); }
.set-prompt-body .zone-struct-row .bracket { color: var(--zone-struct); }
.set-prompt-body .set-prompt-text { margin-bottom: 0; }
.set-dna-panel {
  border-left: 2px solid var(--zone-dna-line);
  background: var(--zone-dna-bg);
}
.set-dna-panel .set-dna-title { color: var(--zone-dna); }
/* buttons on the set card echo their zone */
.set-copy-style:hover, .set-copy-style.copied {
  color: var(--zone-prompt); border-color: var(--zone-prompt);
}
.set-copy-struct:hover, .set-copy-struct.copied {
  color: var(--zone-struct); border-color: var(--zone-struct);
}
.set-dna-btn:hover, .set-dna-btn.copied {
  color: var(--zone-dna); border-color: var(--zone-dna);
}


/* Set DNA panel */
.set-dna-panel {
  border-top: 1px solid var(--border);
  background: rgba(46,242,194,0.03);
  animation: fadeIn 220ms ease both;
}
.set-dna-head {
  padding: 10px 16px;
  display: flex;
  align-items: center;
  gap: 12px;
  border-bottom: 1px solid var(--border);
  background: rgba(46,242,194,0.05);
  flex-wrap: wrap;
}
.set-dna-title {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--accent);
}
.set-dna-info {
  font-size: 10px;
  color: var(--text-mute);
  flex: 1;
  min-width: 140px;
}
.set-dna-panel .dna-sections,
.set-dna-panel .dna-toolbar { margin-left: 16px; margin-right: 16px; }
.set-dna-panel .dna-track { margin: 10px 16px; }
.set-dna-panel .dna-track:last-child { margin-bottom: 16px; }
.set-dna-btn:hover { color: var(--accent); border-color: var(--accent); }

/* Motif Lab */
.lab-intro {
  padding: 12px 14px;
  margin-bottom: 20px;
  background: rgba(46,242,194,0.05);
  border: 1px solid rgba(46,242,194,0.2);
  border-left: 2px solid var(--accent);
  color: var(--text-dim);
  font-size: 11px;
  line-height: 1.7;
}
.lab-intro .hi {
  color: var(--accent);
  font-weight: 500;
}
.lab-drop {
  padding: 40px 20px;
  border: 2px dashed var(--border-hi);
  background: var(--bg);
  text-align: center;
  cursor: pointer;
  transition: all 200ms ease;
  position: relative;
}
.lab-drop:hover, .lab-drop.dragover {
  border-color: var(--accent);
  background: rgba(46,242,194,0.05);
}
.lab-drop-icon {
  font-size: 32px;
  margin-bottom: 8px;
  opacity: 0.7;
}
.lab-drop-title {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--text);
  margin-bottom: 4px;
}
.lab-drop-sub {
  font-size: 10px;
  letter-spacing: 0.08em;
  color: var(--text-mute);
}
.lab-analysis {
  background: var(--bg);
  border: 1px solid var(--border);
  padding: 16px 18px;
  margin-top: 16px;
}
.lab-or {
  text-align: center;
  font-size: 10px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-mute);
  margin: 14px 0 10px;
}
.lab-text-row {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}
.lab-text-row input[type=text] {
  flex: 1;
  min-width: 200px;
  padding: 11px 13px;
  background: var(--bg);
  border: 1px solid var(--border-hi);
  color: var(--text);
  font-family: inherit;
  font-size: 12px;
  outline: none;
}
.lab-text-row input[type=text]:focus { border-color: var(--accent); }
.lab-text-row select {
  width: auto;
  min-width: 110px;
  padding: 11px 12px;
  font-size: 11px;
}
#lab-text-go { padding: 11px 16px; font-size: 11px; white-space: nowrap; }
.lab-text-hint {
  margin-top: 8px;
  font-size: 10px;
  color: var(--text-mute);
  line-height: 1.6;
}
.dna-head-btns { display: flex; gap: 6px; flex-wrap: wrap; }
.dna-open-btn:hover { color: var(--accent); border-color: var(--accent); background: rgba(46,242,194,0.05); }
.dna-open-btn.copied { color: var(--accent); border-color: var(--accent); background: rgba(46,242,194,0.08); }
.dna-body { animation: fadeIn 220ms ease both; }
.cover-btn:hover { color: var(--accent); border-color: var(--accent); background: rgba(46,242,194,0.05); }
.var-accomp-prog {
  padding: 8px 14px;
  border-bottom: 1px solid var(--border);
  display: flex;
  gap: 12px;
  align-items: baseline;
  flex-wrap: wrap;
  font-size: 10px;
}
.prog-chords { color: var(--text); letter-spacing: 0.04em; }
.prog-source { color: var(--text-mute); font-style: normal; }
.lab-analysis-head {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 12px;
}
.lab-analysis-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 10px 20px;
}
.lab-stat { display: flex; flex-direction: column; gap: 3px; }
.lab-stat-lbl {
  font-size: 9px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-mute);
}
.lab-stat-val {
  font-size: 13px;
  font-weight: 500;
  color: var(--text);
  font-variant-numeric: tabular-nums;
}
.lab-controls-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}
@media (max-width: 640px) {
  .lab-controls-grid { grid-template-columns: 1fr; }
}
.lab-intensity {
  display: flex;
  gap: 2px;
  padding: 2px;
  border: 1px solid var(--border);
  background: var(--bg);
}
.lab-int-btn {
  flex: 1;
  padding: 10px 8px;
  background: transparent;
  border: none;
  color: var(--text-dim);
  font-family: inherit;
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.06em;
  cursor: pointer;
  transition: all 150ms ease;
}
.lab-int-btn:hover { color: var(--text); }
.lab-int-btn.active {
  background: var(--accent);
  color: var(--bg);
  font-weight: 700;
}
.lab-preserve {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.lab-preserve-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  background: var(--bg);
  border: 1px solid var(--border);
  cursor: pointer;
  transition: all 120ms ease;
  font-size: 12px;
}
.lab-preserve-item:hover { border-color: var(--border-hi); }
.lab-preserve-item input[type=checkbox] {
  width: 14px; height: 14px;
  accent-color: var(--accent);
  cursor: pointer;
}
.lab-preserve-hint {
  color: var(--text-mute);
  font-size: 11px;
  font-weight: 400;
}
.lab-accomp-hint {
  margin-top: 8px;
  padding: 8px 10px;
  background: rgba(255,200,87,0.04);
  border-left: 2px solid var(--warn);
  font-size: 10px;
  color: var(--text-dim);
  line-height: 1.6;
}


/* lab: the variation card is source material, the accompaniment makes sound */
.var-card { border-left: 2px solid var(--zone-struct-line); }
.var-strategy { color: var(--zone-struct); }
.var-dl-mid:hover, .var-dl-mid.copied {
  color: var(--zone-struct); border-color: var(--zone-struct);
}
.var-accomp-panel {
  border-left: 2px solid var(--zone-dna-line);
  background: var(--zone-dna-bg);
}
.var-accomp-lbl { color: var(--zone-dna); }

/* Accompaniment panel inside variation cards */
.var-accomp-panel {
  border-top: 1px solid var(--border);
  background: rgba(46,242,194,0.03);
  animation: fadeIn 200ms ease both;
}
.var-accomp-head {
  padding: 8px 14px;
  display: flex;
  align-items: center;
  gap: 10px;
  border-bottom: 1px solid var(--border);
  background: rgba(46,242,194,0.05);
}
.var-accomp-lbl {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--accent);
}
.var-accomp-info {
  font-size: 10px;
  color: var(--text-mute);
  letter-spacing: 0.04em;
  flex: 1;
}
.var-accomp-close {
  background: transparent;
  border: 1px solid var(--border-hi);
  color: var(--text-mute);
  padding: 3px 8px;
  cursor: pointer;
  font-family: inherit;
  font-size: 10px;
  transition: all 150ms ease;
}
.var-accomp-close:hover { color: var(--red, #F87070); border-color: var(--red, #F87070); }
.var-accomp-panel .dna-track { margin: 8px 12px; }
.var-accomp-panel .dna-track:last-child { margin-bottom: 12px; }
.var-dl-accomp:hover { color: var(--warn); border-color: var(--warn); background: rgba(255,200,87,0.05); }

/* Variation cards */
.var-card {
  background: var(--panel);
  border: 1px solid var(--border);
  margin-bottom: 12px;
  padding: 14px 18px;
  display: flex;
  align-items: center;
  gap: 14px;
  animation: fadeIn 250ms ease both;
}
.var-num {
  color: var(--accent);
  font-weight: 700;
  font-size: 12px;
  font-variant-numeric: tabular-nums;
  min-width: 34px;
}
.var-meta { flex: 1; min-width: 0; }
.var-strategy {
  font-size: 12px;
  color: var(--text);
  font-weight: 500;
  margin-bottom: 3px;
}
.var-desc {
  font-size: 10px;
  color: var(--text-dim);
  letter-spacing: 0.02em;
}
.var-dl {
  padding: 8px 14px;
  background: transparent;
  border: 1px solid var(--border-hi);
  color: var(--text-dim);
  font-family: inherit;
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.06em;
  cursor: pointer;
  transition: all 150ms ease;
  display: flex;
  align-items: center;
  gap: 6px;
  white-space: nowrap;
}
.var-dl:hover { color: var(--accent); border-color: var(--accent); }
.var-dl.copied { color: var(--accent); border-color: var(--accent); }

/* Piano roll + play controls for Motif Lab */
.var-card-expanded {
  display: block;
  padding: 0;
}
.var-header {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 12px 16px;
  border-bottom: 1px solid var(--border);
}
.var-btns {
  display: flex;
  gap: 6px;
  flex-shrink: 0;
}
.var-play {
  padding: 8px 12px;
  background: transparent;
  border: 1px solid var(--border-hi);
  color: var(--text-dim);
  font-family: inherit;
  font-size: 12px;
  font-weight: 500;
  cursor: pointer;
  transition: all 150ms ease;
  min-width: 42px;
}
.var-play:hover {
  color: var(--accent);
  border-color: var(--accent);
}
.var-play.playing {
  color: var(--accent);
  border-color: var(--accent);
  background: rgba(46,242,194,0.08);
}
.var-roll {
  padding: 0;
  background: var(--bg);
  border-bottom: 1px solid var(--border);
}
.var-canvas {
  display: block;
  width: 100%;
  height: 110px;
}
.var-card-expanded .var-roll {
  border-bottom: none;
}

/* Original preview in analysis block */
.lab-orig-preview {
  margin-top: 14px;
  padding-top: 14px;
  border-top: 1px solid var(--border);
}
.lab-orig-preview .var-btns {
  margin-bottom: 8px;
}
.lab-orig-preview .var-roll {
  border: 1px solid var(--border);
}
.empty-state {
  padding: 80px 24px;
  text-align: center;
  color: var(--text-mute);
  border: 1px dashed var(--border);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}
.empty-state::before {
  content: '◇';
  display: block;
  font-size: 32px;
  color: var(--border-hi);
  margin-bottom: 16px;
}
footer {
  margin-top: 60px;
  padding-top: 20px;
  border-top: 1px solid var(--border);
  font-size: 10px;
  color: var(--text-mute);
  text-align: center;
  letter-spacing: 0.08em;
  line-height: 1.8;
}
@media (max-width: 640px) {
  body { padding: 20px 12px 60px; }
  .mode-tab { padding: 10px 4px; font-size: 10px; letter-spacing: 0.06em; }
  .prompt-header { padding: 12px 16px; }
  .prompt-block { padding: 14px 16px; }
  .config-panel { padding: 16px; }
  header { gap: 8px; }
  .subtitle { display: none; }
}

/* Explain mode */
.explain-toggle {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 6px 11px;
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text-mute);
  font-family: inherit;
  font-size: 10px;
  letter-spacing: 0.08em;
  cursor: pointer;
  transition: all 150ms ease;
  margin-left: auto;
}
.explain-toggle:hover { color: var(--text-dim); border-color: var(--border-hi); }
.explain-dot {
  width: 8px; height: 8px;
  border: 1px solid var(--text-mute);
  border-radius: 50%;
  transition: all 150ms ease;
}
.explain-toggle.on {
  color: var(--accent);
  border-color: var(--accent);
  background: rgba(46,242,194,0.06);
}
.explain-toggle.on .explain-dot {
  background: var(--accent);
  border-color: var(--accent);
  box-shadow: 0 0 6px rgba(46,242,194,0.6);
}
.explain-tip {
  position: fixed;
  z-index: 2000;
  max-width: 340px;
  padding: 11px 14px;
  background: var(--panel-hi);
  border: 1px solid var(--accent);
  border-left-width: 2px;
  color: var(--text);
  font-family: var(--font);
  font-size: 11px;
  line-height: 1.65;
  letter-spacing: 0.01em;
  box-shadow: 0 8px 28px rgba(0,0,0,0.55);
  pointer-events: none;
  animation: tipIn 140ms ease both;
}
@keyframes tipIn { from { opacity: 0; transform: translateY(-3px); } to { opacity: 1; transform: none; } }
.explain-on [data-explain] { cursor: help; }
.explain-on [data-explain]:hover {
  outline: 1px solid rgba(46,242,194,0.35);
  outline-offset: 2px;
}
@media (max-width: 640px) {
  .explain-label { display: none; }
  .explain-tip { max-width: calc(100vw - 24px); }
}

/* === Site shell (unified with landing) === */
.site-top {
  display: flex; align-items: center; gap: 12px; flex-wrap: wrap;
  margin-bottom: 20px; padding-bottom: 16px;
  border-bottom: 1px solid var(--border);
}
.site-top .logo-link {
  display: flex; align-items: center; gap: 10px;
  text-decoration: none; color: var(--text);
  font-weight: 700; font-size: 15px; letter-spacing: 0.02em;
}
.site-top .logo-mark {
  width: 28px; height: 28px; border-radius: 8px;
  background: linear-gradient(135deg, var(--accent), var(--accent-dim));
  display: grid; place-items: center;
  color: #04120e; font-size: 13px; font-weight: 800; flex-shrink: 0;
}
.site-top .logo-sub {
  font-size: 10px; color: var(--text-mute); font-weight: 500;
  letter-spacing: 0.06em; margin-top: 1px;
}
.site-top .home-link {
  font-size: 11px; color: var(--text-mute); text-decoration: none;
  padding: 6px 10px; border: 1px solid var(--border); border-radius: 999px;
  transition: color 120ms, border-color 120ms;
}
.site-top .home-link:hover { color: var(--accent); border-color: var(--accent-dim); }
.site-lang {
  display: flex; background: var(--panel); border: 1px solid var(--border);
  border-radius: 999px; padding: 3px; gap: 2px;
}
.site-lang button {
  border: 0; background: transparent; color: var(--text-mute);
  font-size: 11px; font-weight: 600; letter-spacing: 0.06em;
  padding: 6px 10px; border-radius: 999px; cursor: pointer;
  font-family: inherit;
}
.site-lang button.active {
  background: rgba(46, 242, 194, 0.15); color: var(--accent);
}
.site-top .view-switch { margin-left: auto; border-radius: 8px; }
.site-top .version {
  font-size: 10px; color: var(--text-mute);
  padding: 3px 8px; border: 1px solid var(--border); letter-spacing: 0.1em;
}
.view-btn.active { color: #04120e !important; }
header.app-header {
  display: none; /* replaced by site-top */
}


/* ============================================================
   Soft UI — match landing (rounded, less angular)
   ============================================================ */
:root {
  --radius: 14px;
  --radius-sm: 10px;
  --radius-lg: 18px;
  --radius-pill: 999px;
  --font-ui: "Inter", system-ui, -apple-system, sans-serif;
  --font-mono: "JetBrains Mono", "SF Mono", Consolas, monospace;
}
body {
  font-family: var(--font-ui) !important;
  letter-spacing: 0.01em;
}
.container { max-width: 960px; }

.config-panel,
.prompt-card,
.modal-card,
.dna-track,
.lib-card {
  border-radius: var(--radius-lg) !important;
  overflow: hidden;
}
.config-panel {
  border: 1px solid var(--border) !important;
  background: rgba(17, 24, 28, 0.92) !important;
  box-shadow: 0 12px 40px rgba(0,0,0,0.25);
  padding: 28px !important;
}

.mode-tabs,
.view-switch {
  border-radius: var(--radius-pill) !important;
  padding: 4px !important;
  gap: 4px !important;
  border: 1px solid var(--border) !important;
  background: var(--panel) !important;
}
.mode-tab,
.view-btn {
  border-radius: var(--radius-pill) !important;
  font-family: var(--font-ui) !important;
  font-weight: 600 !important;
  letter-spacing: 0.03em !important;
  text-transform: none !important;
  padding: 10px 16px !important;
  transition: background 150ms, color 150ms, box-shadow 150ms !important;
}
.mode-tab.active,
.view-btn.active {
  background: linear-gradient(135deg, var(--accent), var(--accent-dim)) !important;
  color: #04120e !important;
  font-weight: 700 !important;
  box-shadow: 0 0 20px rgba(46, 242, 194, 0.22);
}

select,
input[type="text"],
input[type="number"],
textarea,
.voice-sel,
.dna-drummap {
  border-radius: var(--radius-sm) !important;
  font-family: var(--font-ui) !important;
}
.genre-check,
.role-chip,
.sec-chip {
  border-radius: 12px !important;
}
.genre-checks { gap: 8px !important; }

.generate-btn {
  border-radius: var(--radius-pill) !important;
  background: linear-gradient(135deg, var(--accent), var(--accent-dim)) !important;
  color: #04120e !important;
  font-family: var(--font-ui) !important;
  font-weight: 700 !important;
  letter-spacing: 0.06em !important;
  text-transform: none !important;
  box-shadow: 0 0 28px rgba(46, 242, 194, 0.28);
  border: none !important;
  padding: 16px 24px !important;
}
.generate-btn:hover {
  background: linear-gradient(135deg, var(--accent-hi), var(--accent)) !important;
  box-shadow: 0 0 36px rgba(46, 242, 194, 0.4) !important;
}
.generate-btn:disabled {
  background: var(--panel) !important;
  color: var(--text-mute) !important;
  box-shadow: none !important;
}

.mini-btn,
.action-btn,
.copy-btn,
.dna-btn,
.explain-toggle {
  border-radius: var(--radius-pill) !important;
  font-family: var(--font-ui) !important;
  letter-spacing: 0.03em !important;
  text-transform: none !important;
}
.dna-btn, .action-btn, .copy-btn { padding: 7px 12px !important; }

.label {
  font-family: var(--font-ui);
  letter-spacing: 0.08em;
  font-weight: 600;
}
.label::before {
  border-radius: 2px;
  background: var(--accent) !important;
  opacity: 0.75;
}

.site-top .view-switch { border-radius: var(--radius-pill) !important; }
.weight-slider { border-radius: var(--radius-sm) !important; overflow: hidden; }
.bridge-note, .lib-intro { border-radius: var(--radius) !important; }
.prompt-card {
  box-shadow: 0 8px 32px rgba(0,0,0,0.2);
  border: 1px solid var(--border) !important;
}
.prompt-tag { border-radius: 8px !important; }
.modal-card {
  border-radius: var(--radius-lg) !important;
  box-shadow: 0 24px 80px rgba(0,0,0,0.5);
}
.explain-tip { border-radius: 12px !important; }

#seed-drop, #tpl-drop, #lab-drop, [id$="-drop"] {
  border-radius: var(--radius-lg) !important;
}
.var-play, .dna-track-btns .var-play {
  border-radius: var(--radius-pill) !important;
}
.dna-track, .dna-track-head {
  border-radius: var(--radius) !important;
}
.dna-track { overflow: hidden; }

/* technical mono only in code-ish areas */
.prompt-block, .block-label + *, pre, code {
  /* keep readable */
}
.prompt-num, .fname { font-family: var(--font-mono); }



/* panels solid over photo */
.config-panel, .prompt-card, .modal-card, .dna-track, .lib-card {
  background: rgba(17, 24, 28, 0.94) !important;
}
/* app-bg panels */

/* site footer — matches landing, terms and privacy */
.site-footer {
  margin-top: auto;
  border-top: 1px solid var(--border);
  padding-top: 20px;
}
/* the visible view expands so short pages still push the footer down,
   and its bottom padding keeps air above the divider */
.container > #gen-view,
.container > #lab-view,
.container > #set-view,
.container > #lib-view { flex: 1 0 auto; padding-bottom: 60px; }
.footer-hint {
  font-size: 10px;
  color: var(--text-mute);
  letter-spacing: 0.08em;
  line-height: 1.8;
  text-align: center;
  margin-bottom: 18px;
}
.footer-bar {
  display: flex; flex-wrap: wrap; gap: 16px;
  align-items: center; justify-content: space-between;
  padding-bottom: 8px;
  color: var(--text-mute); font-size: 12px;
}
.footer-bar .links { display: flex; gap: 16px; flex-wrap: wrap; }
.footer-bar a { color: inherit; text-decoration: none; }
.footer-bar a:hover { color: var(--accent); }


/* —— App responsive shell —— */
html { -webkit-text-size-adjust: 100%; }
body { overflow-x: hidden; }

@media (max-width: 900px) {
  .container { padding-left: 16px; padding-right: 16px; max-width: 100%; }
  .site-top {
    gap: 10px;
  }
  .site-top .view-switch {
    margin-left: 0;
    width: 100%;
    order: 10;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
  }
  .site-top .view-switch .view-btn {
    text-align: center;
    padding: 10px 4px;
    font-size: 11px;
  }
}

@media (max-width: 640px) {
  body { padding: 16px 12px 48px !important; }
  .container { padding: 0; }
  .site-top {
    margin-bottom: 16px;
    padding-bottom: 12px;
  }
  .site-top .logo-sub { display: none; }
  .site-top .version { display: none; }
  .site-top .home-link { padding: 6px 8px; font-size: 10px; }
  .mode-tabs {
    display: grid !important;
    grid-template-columns: 1fr 1fr;
    gap: 6px !important;
    border-radius: 14px !important;
  }
  .mode-tab {
    text-align: center;
    padding: 10px 8px !important;
    font-size: 12px !important;
  }
  .generate-btn {
    width: 100%;
    min-height: 48px;
  }
  .config-panel {
    padding: 16px !important;
  }
  .genre-checks {
    gap: 6px !important;
  }
  .prompt-card {
    border-radius: 14px !important;
  }
  .dna-track {
    overflow-x: auto;
  }
  .site-footer {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
    padding: 20px 0 12px;
  }
  .site-footer .links {
    gap: 8px 12px;
    font-size: 11px;
  }
  .footer-hint {
    font-size: 11px;
    line-height: 1.45;
  }
  .lab-controls-grid,
  .set-grid {
    grid-template-columns: 1fr !important;
  }
  select, input[type="text"], input[type="number"], textarea {
    font-size: 16px !important; /* prevent iOS zoom */
  }
}

@media (max-width: 400px) {
  .site-top .view-switch .view-btn {
    font-size: 10px;
    padding: 8px 2px;
  }
  .site-lang button { padding: 5px 7px; }
}


/* explain-tip-fixed-boost */
.explain-tip {
  position: fixed !important;
  z-index: 99999 !important;
  pointer-events: none !important;
  background: #172025 !important;
  border: 1px solid #2ef2c2 !important;
  color: #e8f0f2 !important;
  max-width: min(340px, calc(100vw - 24px)) !important;
}
.explain-toggle {
  position: relative;
  z-index: 5;
  cursor: pointer !important;
}
.explain-toggle.on {
  color: #2ef2c2 !important;
  border-color: #2ef2c2 !important;
}

/* Lab full track panel */
.var-fulltrack-panel { margin-top: 12px; }
/* Stacked, and reading the same way as the Gen card: violet for the prompt
   you paste, amber for the arrangement form. */
.lab-prompt-box {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin: 12px 0 14px;
}
@media (max-width: 700px) {
  .lab-prompt-box { grid-template-columns: 1fr; }
}
.lab-prompt-block { padding: 12px 14px; }
.lab-prompt-block.zone-prompt {
  background: var(--zone-prompt-bg);
  border-left: 2px solid var(--zone-prompt-line);
}
.lab-prompt-block.zone-struct {
  background: var(--zone-struct-bg);
  border-left: 2px solid var(--zone-struct-line);
}
.lab-prompt-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 8px;
  flex-wrap: wrap;
}
.lab-prompt-lbl {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  display: flex;
  align-items: baseline;
  gap: 8px;
}
.lab-prompt-block.zone-prompt .lab-prompt-lbl { color: var(--zone-prompt); }
.lab-prompt-block.zone-struct .lab-prompt-lbl { color: var(--zone-struct); }
.lab-prompt-hint {
  font-size: 10px;
  font-weight: 400;
  letter-spacing: 0.02em;
  text-transform: none;
  color: var(--text-mute);
}
.lab-prompt-block.zone-prompt .lab-copy-style:hover,
.lab-prompt-block.zone-prompt .lab-copy-style.copied {
  color: var(--zone-prompt); border-color: var(--zone-prompt);
}
.lab-prompt-block.zone-struct .lab-copy-struct:hover,
.lab-prompt-block.zone-struct .lab-copy-struct.copied {
  color: var(--zone-struct); border-color: var(--zone-struct);
}
.lab-prompt-block.zone-struct .lab-prompt-pre .bracket { color: var(--zone-struct); }
.lab-prompt-pre {
  white-space: pre-wrap;
  word-break: break-word;
  font-family: var(--mono, ui-monospace, monospace);
  font-size: 11px;
  line-height: 1.6;
  color: var(--text-dim, #8aa0a8);
  max-height: 120px;
  overflow: auto;
  margin: 0;
}
.lab-full-picker { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 10px; }
.lab-full-actions { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 10px; }
.var-dl-full {
  border-color: rgba(46,242,194,0.45) !important;
  color: var(--accent, #2ef2c2) !important;
}
.var-dl-full:hover {
  border-color: var(--accent) !important;
  background: rgba(46,242,194,0.07);
}

/* ---------- CARD SEPARATION ----------
   Long lists of generated items blur together. Two things fix that:
   neighbouring cards alternate their surface, and the number strip cycles
   through the palette so #03 and #04 never look the same. */

/* alternating surface — subtle, but the eye finds the boundary */
.prompt-card:nth-child(even),
.var-card:nth-child(even),
.set-card:nth-child(even) {
  background: var(--panel-hi);
}
.prompt-card:nth-child(odd),
.var-card:nth-child(odd),
.set-card:nth-child(odd) {
  background: var(--panel);
}

/* a coloured rail on the left, cycling every four cards */
.prompt-card, .var-card, .set-card {
  border-left: 3px solid var(--border-hi);
}
.prompt-card:nth-child(4n+1), .var-card:nth-child(4n+1), .set-card:nth-child(4n+1) { border-left-color: var(--accent); }
.prompt-card:nth-child(4n+2), .var-card:nth-child(4n+2), .set-card:nth-child(4n+2) { border-left-color: var(--zone-prompt); }
.prompt-card:nth-child(4n+3), .var-card:nth-child(4n+3), .set-card:nth-child(4n+3) { border-left-color: var(--zone-struct); }
.prompt-card:nth-child(4n+4), .var-card:nth-child(4n+4), .set-card:nth-child(4n+4) { border-left-color: var(--alt); }

/* the number picks up the same colour, so header and rail agree */
.prompt-card:nth-child(4n+1) .prompt-num,
.var-card:nth-child(4n+1) .var-num,
.set-card:nth-child(4n+1) .set-num { color: var(--accent); }
.prompt-card:nth-child(4n+2) .prompt-num,
.var-card:nth-child(4n+2) .var-num,
.set-card:nth-child(4n+2) .set-num { color: var(--zone-prompt); }
.prompt-card:nth-child(4n+3) .prompt-num,
.var-card:nth-child(4n+3) .var-num,
.set-card:nth-child(4n+3) .set-num { color: var(--zone-struct); }
.prompt-card:nth-child(4n+4) .prompt-num,
.var-card:nth-child(4n+4) .var-num,
.set-card:nth-child(4n+4) .set-num { color: var(--alt); }

/* the header of every card sits a shade above its body, so the
   inside of a card is legible as head + content */
.prompt-header, .var-head, .set-card-head {
  background: rgba(0,0,0,0.22);
}
.prompt-card:nth-child(even) .prompt-header,
.set-card:nth-child(even) .set-card-head { background: rgba(0,0,0,0.3); }

/* gaps between cards, so they never touch */
.prompt-card { margin-bottom: 18px; }
.var-card, .set-card { margin-bottom: 14px; }


/* ---------- feedback form ---------- */
.feedback-block {
  margin-top: 48px;
  padding: 20px 22px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-left: 2px solid var(--zone-prompt-line);
}
.fb-head { margin-bottom: 14px; }
.fb-title {
  display: block; font-size: 13px; font-weight: 700;
  color: var(--zone-prompt); letter-spacing: 0.04em; margin-bottom: 3px;
}
.fb-sub { font-size: 11px; color: var(--text-mute); }
.fb-stars-pick { display: flex; gap: 4px; margin-bottom: 12px; }
.fb-stars-pick button {
  background: transparent; border: 0; cursor: pointer;
  font-size: 22px; line-height: 1; padding: 2px 3px;
  color: var(--border-hi); transition: color 120ms, transform 120ms;
  font-family: inherit;
}
.fb-stars-pick button:hover { transform: scale(1.15); }
.fb-stars-pick button.on { color: var(--warn); }
.feedback-block textarea {
  width: 100%; padding: 11px 13px; background: var(--bg);
  border: 1px solid var(--border-hi); color: var(--text);
  font-family: inherit; font-size: 12px; line-height: 1.6;
  outline: none; resize: vertical; margin-bottom: 10px;
}
.feedback-block textarea:focus { border-color: var(--zone-prompt); }
.fb-row { display: flex; gap: 8px; flex-wrap: wrap; }
.fb-row input {
  flex: 1; min-width: 200px; padding: 10px 13px;
  background: var(--bg); border: 1px solid var(--border-hi);
  color: var(--text); font-family: inherit; font-size: 12px; outline: none;
}
.fb-row input:focus { border-color: var(--zone-prompt); }
#fb-send { padding: 10px 20px; }
.fb-status { margin-top: 10px; font-size: 11px; min-height: 15px; color: var(--text-mute); }
.fb-status.ok { color: var(--accent); }
.fb-status.err { color: #f87070; }

/* ---------- uploaded logo ----------
   A square mark drops into the 28px badge. A wide logo that already contains
   the name replaces the whole lockup instead — squeezing it into a square
   would show nothing but the middle of the image. */
.logo.has-wide-logo .logo-mark { display: none; }
.logo.has-wide-logo span:not(.logo-mark) { display: none; }
.logo-image {
  display: block;
  height: 34px;
  width: auto;
  max-width: 220px;
  object-fit: contain;
}
.logo-mark img {
  width: 100%; height: 100%;
  object-fit: contain;
  border-radius: inherit;
  /* the uploaded file may have its own background, so trim the padding away */
  padding: 1px;
}
@media (max-width: 759px) {
  .logo-image { height: 28px; max-width: 150px; }
}