/* Fretboard Diagram Maker — dark neumorphism (matches site + trainer theme) */

.diagram-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);

  --fret: #c8c8c8;
  --good: #3dd68c;
  --bad: #e85d5d;
  --warn: #e6b84d;
  --sel: #e6c35c;

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

  --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;
}

.diagram-header {
  text-align: center;
  margin-bottom: 1.25rem;
}

.diagram-header h1 {
  margin: 0 0 0.25rem;
  font-size: 1.6rem;
  font-family: var(--font-display);
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--text);
}

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

.diagram-layout {
  display: grid;
  grid-template-columns: 300px 1fr;
  gap: 1.25rem;
  align-items: start;
}

@media (max-width: 900px) {
  .diagram-layout {
    grid-template-columns: 1fr;
  }
}

.diagram-app .panel {
  background: var(--panel);
  border: none;
  border-radius: var(--radius);
  padding: 1rem 1.1rem;
  box-shadow: var(--neu-out);
}

.toolbar {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  position: sticky;
  top: 4.25rem;
}

@media (max-width: 900px) {
  .toolbar { position: static; }
}

.tool-group {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.tool-group > label,
.group-title {
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--muted);
  font-weight: 600;
}

.diagram-app .hint {
  font-size: 0.78rem;
  color: var(--muted);
  line-height: 1.35;
}

.diagram-app .hint.tight { margin: 0; }

.diagram-app select,
.diagram-app input[type="number"],
.diagram-app input[type="text"],
.diagram-app button {
  font: inherit;
  border-radius: var(--radius-sm);
  border: none;
  background: var(--btn);
  color: var(--text);
  padding: 0.5rem 0.7rem;
  box-shadow: var(--neu-out-sm);
  transition: box-shadow 0.15s ease, background 0.15s ease, color 0.15s ease;
}

.diagram-app select,
.diagram-app input[type="number"],
.diagram-app input[type="text"] {
  width: 100%;
  cursor: text;
  background: var(--bg-deep);
  box-shadow: var(--neu-in-sm);
}

.diagram-app select { cursor: pointer; }

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

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

.diagram-app button {
  cursor: pointer;
}

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

.btn-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.btn-row button { flex: 1 1 auto; font-size: 0.85rem; }

.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;
}

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

.btn-secondary { font-size: 0.85rem; }

.btn-danger {
  background: #2a1c22 !important;
  border: none !important;
  color: #d4a0a8 !important;
  font-size: 0.85rem;
  box-shadow: var(--neu-out-sm);
}

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

.color-swatches {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 0.4rem;
}

.swatch {
  width: 100%;
  aspect-ratio: 1;
  border-radius: 50%;
  border: 2px solid rgba(255, 255, 255, 0.2);
  cursor: pointer;
  padding: 0;
  box-shadow:
    inset 0 1px 2px rgba(255, 255, 255, 0.25),
    3px 3px 8px var(--neu-dark),
    -2px -2px 6px var(--neu-light);
  transition: transform 0.12s, box-shadow 0.12s;
}

.swatch:hover { transform: scale(1.08); }

.swatch:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.swatch[data-color="eraser"] {
  background:
    linear-gradient(135deg, transparent 46%, #e85d5d 46%, #e85d5d 54%, transparent 54%),
    var(--surface-raised);
  border-style: dashed;
  border-color: rgba(255, 255, 255, 0.2);
}

.label-mode {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
}

.chip-radio {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  background: var(--surface-raised);
  border: none;
  border-radius: var(--radius-pill);
  padding: 0.3rem 0.65rem;
  cursor: pointer;
  font-size: 0.85rem;
  color: var(--text);
  box-shadow: var(--neu-out-sm);
  transition: box-shadow 0.15s ease, color 0.15s ease;
}

.chip-radio:has(input:checked) {
  color: var(--accent);
  box-shadow: var(--neu-in-sm);
}

.chip-radio input { accent-color: var(--accent); }

.selection-readout {
  font-size: 0.8rem;
  color: var(--muted);
  background: var(--bg-deep);
  border: none;
  border-radius: var(--radius-sm);
  padding: 0.55rem 0.7rem;
  line-height: 1.4;
  box-shadow: var(--neu-in-sm);
}

.board-panel {
  min-width: 0;
}

.board-meta {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.5rem 1rem;
  margin-bottom: 0.65rem;
  color: var(--muted);
  font-size: 0.85rem;
}

.board-meta #boardTitle {
  color: var(--text);
  font-weight: 600;
}

.legend-hint { font-size: 0.8rem; }

.board-wrap {
  overflow-x: auto; /* fallback only on very small widths */
  padding-bottom: 0.5rem;
  width: 100%;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
}

/* —— Fretboard (shared look with trainer; overflow fixes kept) —— */

.diagram-app .fretboard {
  --label-w: 70px;
  --nut-w: 18px;
  --open-w: 52px;
  --fret-min: 0px;          /* was 52px — caused overflow */
  --string-h: 52px;
  display: grid;
  width: 100%;              /* fill panel */
  min-width: 0;             /* was min-content — caused overflow */
  box-sizing: border-box;
  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);
  position: relative;
}

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

.diagram-app .fret-num {
  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;
}

.diagram-app .corner {
  background: var(--bg-deep);
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
  min-height: 32px;
}

.diagram-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);
}

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

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

.diagram-app .fret-cell::before,
.diagram-app .open-cell::before,
.diagram-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;
}

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

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

.diagram-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;
}

.diagram-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;
}

.diagram-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;
}

/* Playable hit target */
.diagram-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;
  box-shadow: none;
}

.diagram-app .fret-hit:hover {
  background: rgba(126, 184, 168, 0.12);
}

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

.diagram-app .fret-cell.has-marks .fret-hit:hover,
.diagram-app .open-cell.has-marks .fret-hit:hover {
  background: rgba(126, 184, 168, 0.1);
}

/* Stacked / adjacent dots on one fret */
.dot-stack {
  display: flex;
  flex-direction: row;
  align-items: center;
  justify-content: center;
  gap: 3px;
  pointer-events: none;
  max-width: 100%;
  padding: 0 2px;
  flex-wrap: nowrap;
}

/* Keep dots usable when frets get narrow */
.fret-dot {
  --dot: #7eb8a8;
  --dot-ink: #0c241f;
  width: var(--dot-size, 28px);
  height: var(--dot-size, 28px);
  max-width: calc(100% - 2px);
  max-height: calc(var(--string-h) - 12px);
  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;
  flex: 0 1 auto;
  color: var(--dot-ink);
  font-weight: 800;
  font-size: var(--dot-fs, 0.72rem);
  line-height: 1;
  letter-spacing: -0.02em;
  text-shadow: 0 1px 0 rgba(255, 255, 255, 0.15);
  overflow: hidden;
}

/* Shrink dots when several share a fret */
.dot-stack[data-count="2"] { --dot-size: 24px; --dot-fs: 0.65rem; gap: 2px; }
.dot-stack[data-count="3"] { --dot-size: 20px; --dot-fs: 0.58rem; gap: 2px; }
.dot-stack[data-count="4"] { --dot-size: 17px; --dot-fs: 0.5rem; gap: 1px; }
.dot-stack[data-count="5"] { --dot-size: 14px; --dot-fs: 0.45rem; gap: 1px; }
.dot-stack[data-count="6"] { --dot-size: 12px; --dot-fs: 0.4rem; gap: 1px; }

.fret-dot.ink-light {
  --dot-ink: #fff;
  text-shadow: 0 1px 1px rgba(0, 0, 0, 0.45);
}

/* Export mount: off-screen clean clone */
.export-mount {
  position: absolute;
  left: -9999px;
  top: 0;
  pointer-events: none;
}

.export-mount .fretboard {
  /* same vars inherited when class diagram-app wraps it — we clone styles inline via class */
}

.export-mount .fret-cell.selected .fret-hit,
.export-mount .open-cell.selected .fret-hit {
  box-shadow: none;
  background: transparent;
}

.export-mount .fret-hit:hover {
  background: transparent;
}

.boards-toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem 1rem;
  margin-bottom: 0.85rem;
}

.boards-list {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.board-card {
  background: var(--panel);
  border: none;
  border-radius: var(--radius);
  padding: 0.85rem 1rem 1rem;
  box-shadow: var(--neu-out);
  transition: box-shadow 0.15s ease;
}

.board-card.is-active {
  border: none;
  box-shadow:
    var(--neu-out),
    inset 0 0 0 2px rgba(126, 184, 168, 0.55),
    0 0 24px var(--accent-glow);
}

.board-card-header {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  gap: 0.65rem 0.85rem;
  margin-bottom: 0.65rem;
}

.board-card-header .board-title {
  color: var(--text);
  font-weight: 600;
  font-size: 0.95rem;
  margin-right: auto;
}

.board-card-header label {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--muted);
  font-weight: 600;
}

.board-card-header select,
.board-card-header input[type="number"] {
  min-width: 7.5rem;
  font-size: 0.85rem;
  padding: 0.35rem 0.5rem;
}

.board-card-header .btn-danger {
  flex: 0 0 auto;
  align-self: flex-end;
}

.board-card .board-wrap {
  overflow-x: auto;
  width: 100%;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
}