/* Triads — dark neumorphism (matches site + note-finder game theme) */

.triads-app {
  --bg: #1a1d23;
  --bg-deep: #14161b;
  --surface: #1e2229;
  --surface-raised: #232830;

  --text: #e6e8ec;
  --text-soft: #c4c8d0;
  --muted: #8b919c;

  --accent: #7eb8a8;
  --accent-dim: #5a8f82;
  --accent-glow: rgba(126, 184, 168, 0.18);

  /* Game feedback — keep readable */
  --fret: #c8c8c8;
  --good: #3dd68c;
  --bad: #e85d5d;
  --warn: #e6b84d;
  --sel: #e6c35c;

  --btn: #232830;
  --btn-hover: #2a303a;
  --panel: #1e2229;
  --border: transparent;
  --deep: #14161b;

  /* Neumorphic shadows */
  --neu-dark: rgba(0, 0, 0, 0.45);
  --neu-light: rgba(255, 255, 255, 0.04);
  --neu-out:
    8px 8px 16px var(--neu-dark),
    -6px -6px 14px var(--neu-light);
  --neu-out-sm:
    4px 4px 10px var(--neu-dark),
    -3px -3px 8px var(--neu-light);
  --neu-in:
    inset 5px 5px 12px var(--neu-dark),
    inset -4px -4px 10px var(--neu-light);
  --neu-in-sm:
    inset 3px 3px 8px var(--neu-dark),
    inset -2px -2px 6px var(--neu-light);

  --radius: 16px;
  --radius-sm: 10px;
  --radius-pill: 999px;
  --font-display: Georgia, "Times New Roman", serif;

  max-width: 1100px;
  margin: 0 auto;
  padding: 0 0 2rem;
  color: var(--text);
}

.triads-hero {
  text-align: center;
  margin-bottom: 1rem;
}

.triads-hero h1 {
  margin: 0 0 0.25rem;
  font-size: 1.7rem;
  font-family: var(--font-display);
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--text);
}

.triads-hero .subtitle {
  margin: 0;
  color: var(--muted);
  font-size: 0.95rem;
  line-height: 1.5;
}

/* Top nav screens */
.triads-app .screen-nav {
  display: flex;
  gap: 0.45rem;
  justify-content: center;
  margin-bottom: 1.15rem;
  flex-wrap: wrap;
}

.triads-app .screen-nav button {
  font: inherit;
  border-radius: var(--radius-pill);
  border: none;
  background: var(--surface-raised);
  color: var(--text);
  padding: 0.45rem 1rem;
  cursor: pointer;
  font-size: 0.9rem;
  font-weight: 600;
  box-shadow: var(--neu-out-sm);
  transition: box-shadow 0.15s ease, color 0.15s ease;
}

.triads-app .screen-nav button:hover {
  background: var(--btn-hover);
  color: var(--text-soft);
}

.triads-app .screen-nav button.active {
  background: var(--surface-raised);
  background-image: linear-gradient(
    145deg,
    rgba(126, 184, 168, 0.16),
    transparent 55%
  );
  border: none;
  color: var(--accent);
  box-shadow: var(--neu-in-sm);
}

.triads-app .screen {
  display: none;
}

.triads-app .screen.active {
  display: block;
}

.triads-app .panel {
  background: var(--panel);
  border: none;
  border-radius: var(--radius);
  padding: 1.15rem 1.25rem;
  box-shadow: var(--neu-out);
}

.triads-app .panel h2 {
  margin: 0 0 0.75rem;
  font-size: 1.05rem;
  font-weight: 650;
  letter-spacing: -0.01em;
  color: var(--text);
}

.triads-app .stack {
  display: flex;
  flex-direction: column;
  gap: 1.1rem;
}

.triads-app .group-title {
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--muted);
  font-weight: 600;
  margin-bottom: 0.4rem;
}

.triads-app .hint {
  font-size: 0.8rem;
  color: var(--muted);
  margin: 0.35rem 0 0;
  line-height: 1.35;
}

.triads-app .hint.tight {
  margin-top: 0;
}

.triads-app label.field {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--muted);
  font-weight: 600;
}

.triads-app select,
.triads-app button.action {
  font: inherit;
  border-radius: var(--radius-sm);
  border: none;
  background: var(--btn);
  color: var(--text);
  padding: 0.55rem 0.75rem;
  box-shadow: var(--neu-out-sm);
  transition: box-shadow 0.15s ease, background 0.15s ease, color 0.15s ease;
}

.triads-app select {
  width: 100%;
  max-width: 420px;
  cursor: pointer;
  background: var(--bg-deep);
  box-shadow: var(--neu-in-sm);
}

.triads-app select:hover,
.triads-app button.action:hover:not(:disabled) {
  background: var(--btn-hover);
}

.triads-app button.action:hover:not(:disabled) {
  box-shadow: var(--neu-in-sm);
}

.triads-app button.action {
  cursor: pointer;
}

.triads-app button.action:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

.triads-app .btn-primary {
  background: var(--surface-raised) !important;
  background-image: linear-gradient(
    145deg,
    rgba(126, 184, 168, 0.16),
    transparent 55%
  ) !important;
  border: none !important;
  color: var(--accent) !important;
  font-weight: 700;
  box-shadow: var(--neu-out-sm);
  filter: none;
}

.triads-app .btn-primary:hover:not(:disabled) {
  filter: none;
  color: var(--text) !important;
  box-shadow: var(--neu-in-sm);
}

.triads-app .btn-danger {
  background: #2a1c22 !important;
  border: none !important;
  color: #d4a0a8 !important;
  box-shadow: var(--neu-out-sm);
}

.triads-app .btn-danger:hover:not(:disabled) {
  color: #f0c4c8 !important;
  box-shadow: var(--neu-in-sm);
}

.triads-app .btn-ghost {
  font-size: 0.9rem;
}

.triads-app .chip-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.triads-app .chip {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  border-radius: var(--radius-pill);
  border: none;
  background: var(--surface-raised);
  color: var(--text);
  padding: 0.4rem 0.75rem;
  cursor: pointer;
  font-size: 0.88rem;
  user-select: none;
  box-shadow: var(--neu-out-sm);
  transition: box-shadow 0.15s ease, color 0.15s ease, background 0.15s ease;
}

.triads-app .chip input {
  accent-color: var(--accent);
  margin: 0;
}

.triads-app .chip.on {
  outline: none;
  background: var(--bg-deep);
  color: var(--accent);
  box-shadow: var(--neu-in-sm);
}

.triads-app .mode-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 0.5rem;
}

.triads-app .mode-card {
  text-align: left;
  border-radius: var(--radius-sm);
  border: none;
  background: var(--surface-raised);
  color: var(--text);
  padding: 0.7rem 0.8rem;
  cursor: pointer;
  font: inherit;
  box-shadow: var(--neu-out-sm);
  transition: box-shadow 0.15s ease, color 0.15s ease, background 0.15s ease;
}

.triads-app .mode-card:hover {
  background: var(--btn-hover);
}

.triads-app .mode-card.active {
  background: var(--surface-raised);
  background-image: linear-gradient(
    145deg,
    rgba(126, 184, 168, 0.16),
    transparent 55%
  );
  border: none;
  color: var(--accent);
  box-shadow: var(--neu-in-sm);
}

.triads-app .mode-card b {
  display: block;
  font-size: 0.95rem;
  margin-bottom: 0.15rem;
}

.triads-app .mode-card span {
  display: block;
  font-size: 0.78rem;
  opacity: 0.85;
  line-height: 1.3;
  color: inherit;
}

.triads-app .mode-card.active span {
  opacity: 0.9;
  color: var(--text-soft);
}

.triads-app .start-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  align-items: center;
  margin-top: 0.25rem;
}

.triads-app .pool-status {
  font-size: 0.85rem;
  color: var(--muted);
  padding: 0.55rem 0.7rem;
  background: var(--deep);
  border: none;
  border-radius: var(--radius-sm);
  box-shadow: var(--neu-in-sm);
}

.triads-app .pool-status strong {
  color: var(--accent);
}

/* Play layout */
.triads-app .play-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.9rem;
}

.triads-app .prompt-kicker {
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--muted);
  font-weight: 600;
  margin-bottom: 0.25rem;
}

.triads-app .prompt-main {
  font-size: 1.28rem;
  font-weight: 700;
  margin: 0 0 0.35rem;
  letter-spacing: -0.01em;
  color: var(--text);
}

.triads-app .prompt-main em {
  font-style: normal;
  color: var(--accent);
}

.triads-app .prompt-sub {
  margin: 0;
  color: var(--muted);
  font-size: 0.9rem;
}

.triads-app .play-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  margin-top: 0.75rem;
}

.triads-app .pill {
  background: var(--deep);
  border: none;
  border-radius: var(--radius-pill);
  padding: 0.3rem 0.7rem;
  font-size: 0.8rem;
  color: var(--muted);
  box-shadow: var(--neu-in-sm);
}

.triads-app .pill b {
  color: var(--text);
}

.triads-app .feedback {
  margin-top: 0.7rem;
  padding: 0.55rem 0.75rem;
  border-radius: var(--radius-sm);
  font-size: 0.92rem;
  font-weight: 600;
  display: none;
  box-shadow: var(--neu-in-sm);
}

.triads-app .feedback.show {
  display: block;
}

.triads-app .feedback.ok {
  background: rgba(61, 214, 140, 0.12);
  border: none;
  color: #8ef0b8;
}

.triads-app .feedback.bad {
  background: rgba(232, 93, 93, 0.12);
  border: none;
  color: #ffb0a8;
}

.triads-app .feedback.info {
  background: rgba(126, 184, 168, 0.12);
  border: none;
  color: #b5ddd2;
}

.triads-app .options {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  gap: 0.5rem;
  margin-top: 0.75rem;
}

.triads-app .options button {
  font: inherit;
  text-align: left;
  border-radius: var(--radius-sm);
  border: none;
  background: var(--surface-raised);
  color: var(--text);
  padding: 0.65rem 0.75rem;
  cursor: pointer;
  font-size: 0.9rem;
  box-shadow: var(--neu-out-sm);
  transition: box-shadow 0.15s ease, background 0.15s ease;
}

.triads-app .options button:hover:not(:disabled) {
  background: var(--btn-hover);
  box-shadow: var(--neu-in-sm);
}

.triads-app .options button:disabled {
  cursor: default;
}

.triads-app .options button.picked-ok {
  background: rgba(61, 214, 140, 0.18) !important;
  border: none !important;
  box-shadow: inset 0 0 0 2px var(--good), var(--neu-in-sm) !important;
}

.triads-app .options button.picked-bad {
  background: rgba(232, 93, 93, 0.18) !important;
  border: none !important;
  box-shadow: inset 0 0 0 2px var(--bad), var(--neu-in-sm) !important;
}

.triads-app .options button.reveal {
  outline: none;
  box-shadow: inset 0 0 0 2px var(--good), var(--neu-out-sm);
}

.triads-app .action-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  margin-top: 0.85rem;
}

.triads-app .action-bar button {
  min-width: 110px;
}

.triads-app .board-meta {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.5rem 1rem;
  margin-bottom: 0.5rem;
  color: var(--muted);
  font-size: 0.85rem;
}

.triads-app .board-meta strong {
  color: var(--text);
}

.triads-app .board-wrap {
  overflow-x: auto;
  padding-bottom: 0.35rem;
}

/* Fretboard — wood/metal stay real; outer frame gets soft depth */
.triads-app .fretboard {
  --label-w: 70px;
  --nut-w: 18px;
  --open-w: 52px;
  --fret-min: 48px;
  --string-h: 52px;
  display: grid;
  background: linear-gradient(180deg, #5a3a1a 0%, #3d2914 40%, #2a1a0c 100%);
  border-radius: 12px;
  border: 2px solid #1a1008;
  box-shadow:
    inset 0 2px 8px rgba(255, 255, 255, 0.06),
    10px 12px 28px var(--neu-dark),
    -4px -4px 12px var(--neu-light);
  min-width: min-content;
}

.triads-app .corner,
.triads-app .fret-num,
.triads-app .string-label,
.triads-app .nut-cell,
.triads-app .open-cell,
.triads-app .fret-cell {
  min-height: var(--string-h);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  user-select: none;
}

.triads-app .fret-num,
.triads-app .corner {
  color: var(--muted);
  font-size: 0.75rem;
  font-weight: 600;
  background: var(--bg-deep);
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
  min-height: 32px;
}

.triads-app .string-label {
  justify-content: flex-end;
  padding-right: 0.6rem;
  font-weight: 700;
  font-size: 0.95rem;
  background: var(--surface);
  border-right: 1px solid rgba(0, 0, 0, 0.35);
  color: var(--text);
  transition: color 0.25s ease, box-shadow 0.25s ease, opacity 0.25s ease;
}

.triads-app .string-label.dim {
  opacity: 0.35;
}

.triads-app .string-label.hot {
  color: var(--accent);
  box-shadow: inset 3px 0 0 var(--accent);
}

.triads-app .nut-cell {
  background: linear-gradient(90deg, #f0e6d0, #d8c8a8);
  border-left: 1px solid #bba88a;
  border-right: 3px solid #eee8dc;
}

.triads-app .open-cell,
.triads-app .fret-cell {
  border-right: 3px solid var(--fret);
}

.triads-app .fret-cell::before,
.triads-app .open-cell::before,
.triads-app .nut-cell::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  height: var(--sw, 2px);
  background: linear-gradient(180deg, #f0e6a8, #b8962e 45%, #6a5418);
  box-shadow: 0 1px 1px rgba(0, 0, 0, 0.35);
  z-index: 1;
  pointer-events: none;
}

.triads-app .open-cell::before {
  left: 20%;
}

.triads-app .fretboard .s0 {
  --sw: 1.5px;
}
.triads-app .fretboard .s1 {
  --sw: 1.8px;
}
.triads-app .fretboard .s2 {
  --sw: 2.1px;
}
.triads-app .fretboard .s3 {
  --sw: 2.5px;
}
.triads-app .fretboard .s4 {
  --sw: 3px;
}
.triads-app .fretboard .s5 {
  --sw: 3.5px;
}

.triads-app .fret-cell.marker-single::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 100%;
  transform: translate(-50%, -50%);
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: radial-gradient(circle at 35% 35%, #fff8e8, #e8dcc4 45%, #a89878);
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.5), inset 0 1px 2px rgba(255, 255, 255, 0.4);
  z-index: 0;
  pointer-events: none;
}

.triads-app .fret-cell.marker-double .inlay-pair {
  position: absolute;
  left: 50%;
  top: 100%;
  transform: translate(-50%, -50%);
  z-index: 0;
  pointer-events: none;
  display: flex;
  flex-direction: column;
  gap: 22px;
}

.triads-app .fret-cell.marker-double .inlay-pair span {
  width: 13px;
  height: 13px;
  border-radius: 50%;
  background: radial-gradient(circle at 35% 35%, #fff8e8, #e8dcc4 45%, #a89878);
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.5), inset 0 1px 2px rgba(255, 255, 255, 0.4);
  display: block;
}

.triads-app .fret-hit {
  position: relative;
  z-index: 2;
  width: 100%;
  height: 100%;
  min-height: var(--string-h);
  display: flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: none;
  padding: 0;
  cursor: pointer;
  border-radius: 4px;
  color: inherit;
  box-shadow: none;
}

.triads-app .fret-hit:hover:not(:disabled) {
  background: rgba(126, 184, 168, 0.12);
}

.triads-app .fret-hit:disabled {
  cursor: default;
}

.triads-app .fret-cell.locked,
.triads-app .open-cell.locked {
  opacity: 0.38;
}

.triads-app .fret-cell.locked .fret-hit,
.triads-app .open-cell.locked .fret-hit {
  cursor: not-allowed;
}

.triads-app .fret-cell.selected .fret-hit,
.triads-app .open-cell.selected .fret-hit {
  box-shadow: inset 0 0 0 2px var(--sel);
  background: rgba(230, 195, 92, 0.14);
}

.triads-app .fret-cell.ghost .fret-hit,
.triads-app .open-cell.ghost .fret-hit {
  box-shadow: inset 0 0 0 2px rgba(126, 184, 168, 0.55);
}

.triads-app .fret-cell.correct .fret-hit,
.triads-app .open-cell.correct .fret-hit {
  box-shadow: inset 0 0 0 2px var(--good);
  background: rgba(61, 214, 140, 0.16);
}

.triads-app .fret-cell.wrong .fret-hit,
.triads-app .open-cell.wrong .fret-hit {
  box-shadow: inset 0 0 0 2px var(--bad);
  background: rgba(232, 93, 93, 0.16);
}

.triads-app .dot-stack {
  display: flex;
  align-items: center;
  justify-content: center;
  pointer-events: none;
  max-width: 100%;
  padding: 0 2px;
}

/* Degree dots: slightly softened, still distinct roles */
.triads-app .fret-dot {
  --dot: #7eb8a8;
  --dot-ink: #0c241f;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: radial-gradient(circle at 32% 28%, rgba(255, 255, 255, 0.55), transparent 42%), var(--dot);
  border: 2px solid rgba(255, 255, 255, 0.55);
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.45), inset 0 1px 2px rgba(255, 255, 255, 0.25);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--dot-ink);
  font-weight: 800;
  font-size: 0.72rem;
  line-height: 1;
}

.triads-app .fret-dot.root {
  --dot: #7eb8a8;
}
.triads-app .fret-dot.third {
  --dot: #e6b84d;
}
.triads-app .fret-dot.fifth {
  --dot: #6a9fd4;
  --dot-ink: #fff;
}
.triads-app .fret-dot.neutral {
  --dot: #a078c0;
  --dot-ink: #fff;
}

/* Stats screen */
.triads-app .stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: 0.55rem;
}

.triads-app .stat-card {
  background: var(--surface-raised);
  border: none;
  border-radius: var(--radius-sm);
  padding: 0.85rem 0.75rem;
  text-align: center;
  box-shadow: var(--neu-in-sm);
}

.triads-app .stat-card b {
  display: block;
  font-size: 1.55rem;
  color: var(--accent);
  font-variant-numeric: tabular-nums;
}

.triads-app .stat-card span {
  font-size: 0.72rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.triads-app .history {
  margin-top: 0.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  max-height: 280px;
  overflow: auto;
}

.triads-app .history-row {
  display: flex;
  justify-content: space-between;
  gap: 0.75rem;
  padding: 0.45rem 0.6rem;
  background: var(--surface-raised);
  border: none;
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  box-shadow: var(--neu-in-sm);
}

.triads-app .history-row .ok {
  color: var(--good);
  font-weight: 700;
}

.triads-app .history-row .bad {
  color: var(--bad);
  font-weight: 700;
}

.triads-app .history-empty {
  color: var(--muted);
  font-size: 0.9rem;
}

@media (max-width: 640px) {
  .triads-app .fretboard {
    --label-w: 56px;
    --open-w: 44px;
    --fret-min: 40px;
    --string-h: 46px;
  }

  .triads-app .fret-dot {
    width: 24px;
    height: 24px;
    font-size: 0.65rem;
  }
}