*, *::before, *::after {
  box-sizing: border-box;
}

:root {
  --bg: #080b11;
  --bg-deep: #11161f;
  --panel: rgba(19, 25, 35, 0.92);
  --border: #263142;
  --border-strong: #3b4a60;
  --text: #f3f6fb;
  --muted: #9ba8bb;
  --accent: #f3f6fb;
  --accent-soft: #1a2330;
  --scale: #16a394;
  --root: #f5f7fb;
  --chord: #4f8cff;
  --muted-dot: #4a5566;
  --shadow: 0 20px 50px rgba(0, 0, 0, 0.32);
  --wood-1: #3a241c;
  --wood-2: #4b3024;
  --wood-3: #241510;
  --fret-metal: #dce2ea;
  --fret-shadow: #7e8897;
  --inlay: rgba(234, 238, 244, 0.94);
  --cyan: #00c8ff;
  --cyan-dim: #0090bb;
  --site-border: rgba(0, 180, 255, 0.1);
  --site-border-hi: rgba(0, 200, 255, 0.28);
}

/* ── Chord mode amber theme ─────────────────────────────────────────────────
   Applied via body.chord-mode. Overrides accent colors to warm amber/gold
   so chord mode feels like a distinct "room" from the scale visualizer.      */
body.chord-mode {
  --cyan: #f5a623;
  --cyan-dim: #b87214;
  --chord: #f5a623;
  --site-border: rgba(245, 166, 35, 0.12);
  --site-border-hi: rgba(245, 166, 35, 0.32);
  --border-strong: #5a4018;
  background:
    radial-gradient(circle at top left, rgba(245, 166, 35, 0.10), transparent 24%),
    radial-gradient(circle at top right, rgba(200, 120, 20, 0.08), transparent 20%),
    linear-gradient(180deg, #06080d 0%, var(--bg) 55%, var(--bg-deep) 100%);
}

html, body {
  margin: 0;
  min-height: 100%;
}

body {
  font-family: 'Inter', "Avenir Next", "Segoe UI", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(79, 140, 255, 0.16), transparent 24%),
    radial-gradient(circle at top right, rgba(22, 163, 148, 0.12), transparent 20%),
    linear-gradient(180deg, #06080d 0%, var(--bg) 55%, var(--bg-deep) 100%);
}

/* ── SITE NAV ── */
.site-nav {
  position: sticky;
  top: 0;
  z-index: 200;
  padding: 0.85rem 5vw;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: rgba(4, 8, 15, 0.82);
  backdrop-filter: blur(18px);
  border-bottom: 1px solid rgba(0, 180, 255, 0.08);
}

.site-nav-logo {
  display: flex;
  align-items: center;
  text-decoration: none;
}

.site-nav-logo img {
  height: 28px;
  width: auto;
  max-width: 160px;
  object-fit: contain;
  object-position: left center;
  border-radius: 3px;
}

.site-nav-links {
  display: flex;
  gap: 2rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.site-nav-links a {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(100, 140, 170, 0.7);
  text-decoration: none;
  transition: color 0.2s;
}

.site-nav-links a:hover,
.site-nav-links a.active { color: var(--cyan); }

.site-nav-social {
  display: flex;
  gap: 0.65rem;
  align-items: center;
}

.site-nav-social a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 30px;
  border: 1px solid var(--site-border);
  border-radius: 6px;
  color: rgba(100, 140, 170, 0.7);
  text-decoration: none;
  transition: color 0.2s, border-color 0.2s, background 0.2s;
}

.site-nav-social a:hover {
  color: var(--cyan);
  border-color: var(--site-border-hi);
  background: rgba(0, 200, 255, 0.06);
}

.shell {
  min-height: 100vh;
  padding: 36px 10px 48px;
}

.app {
  width: min(1460px, 100%);
  margin: 0 auto;
}

.hero {
  margin-bottom: 18px;
  text-align: center;
}

.eyebrow,
.kicker,
.field span,
.info-label,
.status-pill span {
  display: block;
  color: var(--muted);
  font-size: 0.74rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.hero h1 {
  margin: 0 0 6px;
  font-family: 'Exo 2', sans-serif;
  font-weight: 800;
  font-size: clamp(2.4rem, 4.5vw, 3.8rem);
  line-height: 0.96;
  letter-spacing: -0.02em;
  color: #eef4ff;
}

.subtitle,
.supporting-copy,
.info-card p {
  margin: 0;
  color: var(--muted);
  line-height: 1.55;
}

.subtitle {
  max-width: none;
  font-size: 1rem;
}

.panel {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 24px;
  box-shadow: var(--shadow);
  backdrop-filter: blur(10px);
  transition: background 0.4s ease, border-color 0.4s ease;
}

body.chord-mode .neck-panel,
body.chord-mode .controls-panel,
body.chord-mode .progression-panel {
  background: rgba(24, 18, 8, 0.94);
  border-color: rgba(120, 80, 20, 0.35);
}

.controls-panel,
.details-panel,
.positions-panel,
.side-panel {
  padding: 24px;
}

.neck-panel {
  padding: 24px 14px;
}

.controls-panel,
.positions-panel,
.neck-panel {
  margin-bottom: 18px;
}

.progression-panel {
  padding: 18px 24px;
  margin-bottom: 18px;
  position: relative;
  z-index: 100;
}

.section-head {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: flex-start;
  margin-bottom: 20px;
}

.section-head.compact {
  margin-bottom: 18px;
}

.section-head h2 {
  margin: 6px 0 0;
  font-size: 1.6rem;
  line-height: 1.05;
  letter-spacing: -0.03em;
}

.supporting-copy {
  max-width: 360px;
}

.controls-panel,
.bottom-grid {
  display: grid;
  gap: 18px;
}

.control-stack {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}

.field-scale {
  grid-column: 1 / -1;
}

.bottom-grid {
  grid-template-columns: minmax(0, 1.45fr) minmax(320px, 0.8fr);
  align-items: start;
}

.field {
  display: grid;
  gap: 10px;
}

.field select {
  width: 100%;
  min-height: 44px;
  padding: 0 14px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: #0f1520;
  color: var(--text);
  font: inherit;
}

.field select:focus {
  outline: none;
  border-color: var(--border-strong);
  box-shadow: 0 0 0 3px rgba(15, 23, 42, 0.06);
}

.segmented-control {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.segment-button {
  min-height: 40px;
  padding: 0 14px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: #0f1520;
  color: var(--muted);
  font: inherit;
  cursor: pointer;
  transition: border-color 0.18s ease, background 0.18s ease, color 0.18s ease, transform 0.18s ease;
}

.segment-button:hover {
  transform: translateY(-1px);
  border-color: var(--border-strong);
}

.segment-button.active {
  background: #eef3fb;
  border-color: #eef3fb;
  color: #09111d;
}

.progression-bar {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr);
  gap: 16px;
  margin-top: 18px;
  padding-top: 18px;
  border-top: 1px solid var(--border);
}

.top-progress {
  margin-top: 0;
  padding-top: 0;
  border-top: 0;
}

.progression-field {
  align-content: start;
}

.progression-input-row {
  display: flex;
  gap: 10px;
}

.progression-input-wrap {
  position: relative;
  flex: 1;
}

.progression-input-wrap input {
  width: 100%;
  min-height: 44px;
  padding: 0 14px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: #0f1520;
  color: var(--text);
  font: inherit;
}

.progression-input-wrap input.gated-input {
  padding: 0 16px;
  border-color: var(--border);
  border-radius: 10px;
  background: #0a0f19;
  color: var(--muted);
  font-size: 0.98rem;
  font-weight: 500;
  letter-spacing: 0.01em;
  cursor: pointer;
  transition: border-color 0.18s, color 0.18s, background 0.18s;
}

.progression-input-wrap input.gated-input::placeholder {
  color: var(--muted);
  opacity: 1;
}

.progression-input-wrap input.gated-input:hover,
.progression-input-wrap input.gated-input:focus {
  border-color: var(--cyan);
  color: var(--text);
  outline: none;
}

.progression-suggestions {
  position: absolute;
  top: calc(100% + 6px);
  left: 0;
  right: 0;
  z-index: 1000;
  background: #111927;
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 6px;
  margin: 0;
  list-style: none;
  box-shadow: 0 8px 24px rgba(0,0,0,0.5);
  max-height: 260px;
  overflow-y: auto;
}

.progression-suggestions[hidden] { display: none; }

.progression-suggestion-item {
  padding: 9px 12px;
  border-radius: 8px;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  gap: 2px;
  transition: background 0.12s ease;
}

.progression-suggestion-item:hover,
.progression-suggestion-item.highlighted {
  background: #162133;
}

.suggestion-chords,
.progression-suggestion-item .suggestion-chords,
.progression-suggestion-item .suggestion-name {
  font-size: 0.9rem;
  color: #dce8ff;
  font-weight: 500;
  letter-spacing: 0.02em;
  text-transform: none !important;
  font-variant: normal;
}

.progression-suggestion-item .suggestion-name {
  font-size: 0.75rem;
  color: var(--muted);
  font-weight: 400;
}

.progression-suggestion-item .suggestion-translated {
  font-size: 0.75rem;
  color: var(--cyan-dim, #0090bb);
  font-weight: 400;
  letter-spacing: 0.02em;
  text-transform: none !important;
}

.progression-meta {
  display: grid;
  gap: 10px;
  align-content: start;
}

.progression-help {
  margin: 0;
}

.progression-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.progression-chip {
  border: 1px solid var(--border);
  border-radius: 999px;
  background: #0f1520;
  color: var(--muted);
  padding: 8px 12px;
  font: inherit;
  font-size: 0.86rem;
  cursor: pointer;
}

.progression-chip.active {
  background: #162133;
  border-color: #5a86d8;
  color: #dce8ff;
}

.status-stack {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.status-pill {
  min-width: 124px;
  padding: 12px 14px;
  border: 1px solid var(--border);
  border-radius: 16px;
  background: #111926;
}

.status-pill strong {
  display: block;
  margin-top: 7px;
  font-size: 0.96rem;
}

.status-pill small {
  display: block;
  margin-top: 5px;
  color: var(--muted);
  font-size: 0.94rem;
  font-weight: 600;
  line-height: 1.35;
}

.status-pill-context {
  min-width: 210px;
}

.status-pill-share {
  min-width: 170px;
}

.share-view-btn {
  display: block;
  width: 100%;
  margin-top: 8px;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: #0f1520;
  color: var(--text);
  font: inherit;
  font-size: 0.9rem;
  font-weight: 700;
  cursor: pointer;
  transition: border-color 0.15s ease, background 0.15s ease, color 0.15s ease;
}

.share-view-btn:hover,
.share-view-btn:focus {
  border-color: var(--cyan);
  background: rgba(0, 200, 255, 0.08);
  outline: none;
}

body.chord-mode .share-view-btn:hover,
body.chord-mode .share-view-btn:focus {
  background: rgba(245, 166, 35, 0.1);
}

/* Position dropdown inside status pill */
.shape-select {
  display: block;
  margin-top: 6px;
  width: 100%;
  background: transparent;
  border: none;
  color: var(--text);
  font-family: inherit;
  font-size: 0.94rem;
  font-weight: 600;
  cursor: pointer;
  outline: none;
  padding: 0;
  appearance: auto;
  -webkit-appearance: auto;
}

.shape-select option,
.shape-select optgroup {
  background: #111926;
  color: var(--text);
  font-size: 0.88rem;
}

.neck-head {
  align-items: flex-start;
  flex-wrap: nowrap;
  gap: 12px;
}

.neck-head .title-root-group {
  flex: 1 1 auto;
  min-width: 0;
}

.neck-head .status-stack {
  flex: 0 0 auto;
  flex-wrap: nowrap;
  align-self: flex-start;
}

.neck-head h2 {
  margin: 0;
  font-size: clamp(1.6rem, 3vw, 2.1rem);
}

.neck-frame {
  overflow-x: auto;
  border: 1px solid var(--border);
  border-radius: 20px;
  background: linear-gradient(180deg, #0c1118 0%, #131a25 100%);
  padding: 18px 18px 24px;
  width: 100%;
  max-width: 920px;
  margin: 0 auto;
  scrollbar-width: thin;
  transition: background 0.4s ease, border-color 0.4s ease;
}

.neck-frame.progression-grid-mode {
  overflow: visible;
  max-width: none;
  padding: 14px;
}

body.chord-mode .neck-frame {
  background: linear-gradient(180deg, #110e08 0%, #1a1509 100%);
  border-color: rgba(180, 120, 30, 0.28);
}

.fretboard-stage {
  position: relative;
  width: max-content;
  min-width: 100%;
  height: 400px;
}

.fretboard-stage.progression-grid-mode {
  width: 100%;
  min-width: 0;
  height: auto;
}

.fingerboard {
  position: absolute;
  border-radius: 14px;
  background:
    radial-gradient(circle at 18% 20%, rgba(255, 255, 255, 0.06), transparent 20%),
    radial-gradient(circle at 78% 72%, rgba(255, 255, 255, 0.05), transparent 18%),
    repeating-linear-gradient(
      90deg,
      rgba(255, 255, 255, 0.025) 0,
      rgba(255, 255, 255, 0.025) 3px,
      rgba(0, 0, 0, 0.025) 3px,
      rgba(0, 0, 0, 0.025) 6px
    ),
    linear-gradient(180deg, var(--wood-2) 0%, var(--wood-1) 45%, var(--wood-3) 100%);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.05), inset 0 16px 28px rgba(0, 0, 0, 0.14);
}

.window-highlight {
  position: absolute;
  border-radius: 18px;
  background: rgba(79, 140, 255, 0.1);
  border: 1px solid rgba(133, 176, 255, 0.28);
  box-shadow: inset 0 0 0 1px rgba(159, 193, 255, 0.08), 0 0 0 1px rgba(9, 17, 29, 0.25);
  pointer-events: none;
}

.string-line,
.fret-line {
  position: absolute;
}

.string-line {
  height: 2px;
  background: linear-gradient(180deg, rgba(239, 241, 245, 0.95), rgba(129, 138, 150, 0.7));
  box-shadow: 0 1px 0 rgba(0, 0, 0, 0.12);
}

.fret-line {
  width: 5px;
  margin-left: -1px;
  border-radius: 3px;
  background: linear-gradient(90deg,
    var(--fret-shadow) 0%,
    var(--fret-metal) 30%,
    #ffffff 50%,
    var(--fret-metal) 70%,
    var(--fret-shadow) 100%
  );
  box-shadow: 1px 0 3px rgba(0, 0, 0, 0.22), -1px 0 2px rgba(0,0,0,0.1);
}

.fret-line.nut {
  width: 8px;
  background: linear-gradient(90deg, #f2f4f7, #ffffff 55%, #ced4dc);
  box-shadow: 1px 0 0 rgba(0, 0, 0, 0.25);
}

.fret-label,
.open-label {
  position: absolute;
  transform: translateX(-50%);
  color: #e7edf7;
  font-size: 0.78rem;
  background: rgba(15, 21, 32, 0.96);
  border: 1px solid rgba(53, 67, 88, 0.95);
  border-radius: 999px;
  padding: 2px 8px;
  text-shadow: none;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.24);
}

.fret-label {
  top: 10px;
}

.open-label {
  left: 0;
  top: 10px;
}

.string-label {
  position: absolute;
  left: 0;
  transform: translateY(-50%);
  color: rgba(248, 250, 252, 0.82);
  font-size: 0.76rem;
  font-weight: 700;
  text-shadow: 0 1px 1px rgba(0, 0, 0, 0.3);
}

/* ── String pill-switch toggle (scale mode) ── */
.string-toggle-wrap {
  position: absolute;
  left: 0;
  transform: translateY(-50%);
  display: flex;
  align-items: center;
  gap: 5px;
  cursor: pointer;
  user-select: none;
}

.string-toggle-letter {
  font-size: 0.76rem;
  font-weight: 700;
  color: rgba(248, 250, 252, 0.9);
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.5);
  width: 12px;
  text-align: center;
  transition: color 0.2s;
}

.string-toggle-letter-off {
  color: rgba(155, 168, 187, 0.38);
}

/* The pill track */
.pill-switch {
  position: relative;
  width: 26px;
  height: 14px;
  border-radius: 7px;
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.15);
  transition: background 0.22s, border-color 0.22s;
  flex-shrink: 0;
}

.pill-switch.pill-on {
  background: rgba(0, 200, 255, 0.55);
  border-color: rgba(0, 200, 255, 0.7);
}

/* The sliding knob */
.pill-knob {
  position: absolute;
  top: 2px;
  left: 2px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: rgba(200, 215, 230, 0.6);
  transition: left 0.22s cubic-bezier(0.34, 1.3, 0.64, 1), background 0.22s;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.35);
}

.pill-on .pill-knob {
  left: 14px;
  background: #fff;
}

.string-toggle-wrap:hover .pill-switch:not(.pill-on) {
  background: rgba(255, 255, 255, 0.2);
  border-color: rgba(255, 255, 255, 0.28);
}

/* Muted string line */
.string-line-muted {
  opacity: 0.18;
}

.inlay-dot {
  position: absolute;
  /* top, height, width, margin-left all set dynamically in JS */
  /* Trapezoid shape: wider at top, narrower at bottom — Les Paul style */
  clip-path: polygon(6% 0%, 94% 0%, 86% 100%, 14% 100%);
  background: linear-gradient(160deg,
    rgba(255, 252, 240, 0.30) 0%,
    rgba(240, 235, 210, 0.20) 40%,
    rgba(180, 170, 145, 0.13) 100%
  );
  box-shadow: inset 0 1px 2px rgba(255, 255, 255, 0.14), 0 1px 3px rgba(0, 0, 0, 0.1);
  opacity: 0.38;
}

.inlay-dot.double.top,
.inlay-dot.double.bottom {
  /* positioning handled in JS */
}

.note-dot {
  position: absolute;
  transform: translate(-50%, -50%);
  width: 24px;
  height: 24px;
  border-radius: 999px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: #0b1220;
  background: #f8fbff;
  box-shadow: 0 4px 10px rgba(15, 23, 42, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.85);
  cursor: pointer;
  transition: transform 0.1s ease, box-shadow 0.1s ease;
}

.note-dot:active {
  transform: translate(-50%, -50%) scale(0.88);
  box-shadow: 0 2px 6px rgba(15, 23, 42, 0.18);
}

.note-dot.root {
  background: #ffffff;
  box-shadow: 0 0 0 1px rgba(79, 140, 255, 0.2), 0 4px 10px rgba(15, 23, 42, 0.12);
}

.note-dot.degree-root {
  background: #f8f2cf;
  color: #3e3208;
  border-color: rgba(226, 196, 92, 0.72);
}

.note-dot.degree-pent {
  background: linear-gradient(180deg, #83e7dc 0%, #5bc6d4 100%);
  color: #082f36;
  border-color: rgba(67, 174, 184, 0.78);
}

.note-dot.degree-color {
  background: linear-gradient(180deg, #8b78ff 0%, #6e5df1 100%);
  color: #f7f5ff;
  border-color: rgba(142, 121, 255, 0.78);
}

.note-dot.chord {
  background: var(--chord);
  color: #ffffff;
  border-color: rgba(113, 164, 255, 0.9);
  box-shadow: 0 0 0 3px #ffffff, 0 0 8px 3px rgba(255,255,255,0.5), 0 4px 10px rgba(15, 23, 42, 0.12);
}

.note-dot.chord-root {
  background: var(--chord);
  color: #ffffff;
  box-shadow: 0 0 0 3px #ffffff, 0 0 10px 4px rgba(255,255,255,0.6), 0 4px 10px rgba(15, 23, 42, 0.12);
}

.note-dot.chord-outline {
  box-shadow: 0 0 0 3px #ffffff, 0 0 8px 3px rgba(255,255,255,0.5), 0 4px 10px rgba(15, 23, 42, 0.12);
}

.note-dot.chord-root-outline {
  box-shadow: 0 0 0 3px #ffffff, 0 0 10px 4px rgba(255,255,255,0.6), 0 4px 10px rgba(15, 23, 42, 0.12);
}

.note-dot.faded {
  background: var(--muted-dot);
  color: #eef2f7;
  box-shadow: none;
  border-color: transparent;
}

.note-dot.shape-deemphasized {
  opacity: 0.42;
  transform: translate(-50%, -50%) scale(0.92);
  filter: saturate(0.7);
}

.note-dot.label-none {
  color: transparent;
}

.note-dot.shape-c {
  background: #f8fbff;
  color: #0b1220;
}

.note-dot.shape-a {
  background: #7ed7ca;
  color: #072d29;
  border-color: rgba(22, 163, 148, 0.72);
}

.note-dot.shape-g {
  background: #8cb5ff;
  color: #0f2850;
  border-color: rgba(79, 140, 255, 0.72);
}

.note-dot.shape-e {
  background: #c8a0ff;
  color: #34165c;
  border-color: rgba(139, 92, 246, 0.68);
}

.note-dot.shape-d {
  background: #ffb989;
  color: #5d2408;
  border-color: rgba(234, 88, 12, 0.68);
}

.legend {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 16px;
}

.legend.vertical {
  flex-direction: column;
  align-items: stretch;
}

.legend-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: #111926;
  padding: 8px 12px;
  color: #d6dfeb;
  font-size: 0.84rem;
}

.swatch {
  width: 12px;
  height: 12px;
  border-radius: 999px;
  display: inline-block;
}

.swatch-root {
  background: var(--root);
  border: 1px solid rgba(59, 74, 96, 0.9);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.72);
}
.swatch-scale { background: var(--scale); }
.swatch-chord { background: var(--chord); }
.swatch-extra { background: linear-gradient(180deg, #8b78ff 0%, #6e5df1 100%); border-color: rgba(142, 121, 255, 0.78); }
.swatch-muted { background: var(--muted-dot); }

/* Degree-color style swatches */
.swatch-degree-root { background: #f8f2cf; border: 1px solid rgba(226,196,92,0.72); }
.swatch-degree-pent { background: linear-gradient(180deg, #83e7dc 0%, #5bc6d4 100%); border: 1px solid rgba(67,174,184,0.78); }
.swatch-degree-color { background: linear-gradient(180deg, #8b78ff 0%, #6e5df1 100%); border: 1px solid rgba(142,121,255,0.78); }
/* Chord overlay ring on a degree-color dot */
.swatch-chord-ring {
  background: linear-gradient(180deg, #8b78ff 0%, #6e5df1 100%);
  border: 1px solid rgba(142,121,255,0.78);
  box-shadow: 0 0 0 2px #ffffff, 0 0 4px 1px rgba(255,255,255,0.4);
}
/* Chord root ring on a degree-root dot */
.swatch-chord-root-ring {
  background: #f8f2cf;
  border: 1px solid rgba(226,196,92,0.72);
  box-shadow: 0 0 0 2px #ffffff, 0 0 4px 1px rgba(255,255,255,0.4);
}
/* Shape color swatches */
.swatch-shape-c { background: #f8fbff; border: 1px solid rgba(59,74,96,0.5); }
.swatch-shape-a { background: #7ed7ca; border: 1px solid rgba(22,163,148,0.72); }
.swatch-shape-g { background: #8cb5ff; border: 1px solid rgba(79,140,255,0.72); }
.swatch-shape-e { background: #c8a0ff; border: 1px solid rgba(139,92,246,0.68); }
.swatch-shape-d { background: #ffb989; border: 1px solid rgba(234,88,12,0.68); }
/* Chord tone (solid blue) for shape/white styles */
.swatch-chord-blue { background: var(--chord); border: 1px solid rgba(113,164,255,0.9); box-shadow: 0 0 0 2px #ffffff, 0 0 4px 1px rgba(255,255,255,0.4); }

.details-panel {
  display: grid;
  gap: 14px;
  padding: 0;
}

.side-panel {
  display: grid;
  gap: 18px;
}

.info-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.info-card {
  border: 1px solid var(--border);
  border-radius: 18px;
  background: #111926;
  padding: 14px;
}

.position-cards {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
}

.position-card {
  border: 1px solid var(--border);
  border-radius: 18px;
  background: #111926;
  padding: 16px;
  cursor: pointer;
  transition: border-color 0.18s ease, background 0.18s ease, transform 0.18s ease;
}

.position-card:hover {
  transform: translateY(-1px);
  border-color: var(--border-strong);
}

.position-card.active {
  background: #152133;
  border-color: #5a86d8;
}

.position-card-top {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  align-items: flex-start;
  margin-bottom: 10px;
}

.position-card h3 {
  margin: 0;
  font-size: 1rem;
}

.position-card p {
  margin: 0 0 12px;
  color: var(--muted);
  line-height: 1.45;
  font-size: 0.9rem;
}

.shape-pill,
.range-pill {
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 5px 9px;
  font-size: 0.73rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
  background: #0f1520;
}

.position-meta {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  color: var(--muted);
  font-size: 0.83rem;
}

/* ── Voicing Browser (chord mode) ──────────────────────────────────────────── */
.voicing-card {
  cursor: pointer;
}

.voicing-card.active {
  background: #1e1608;
  border-color: #b87214;
}

.vb-mini-diagram {
  margin-top: 10px;
  overflow: hidden;
  line-height: 0;
}

/* ── Chord tone chips (chord mode sidebar) ──────────────────────────────────── */
.chord-tone-row {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-top: 6px;
}

.chord-tone-chip {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  padding: 8px 10px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: #1a2330;
  min-width: 48px;
}

.chord-tone-chip.chord-tone-root {
  background: rgba(245, 166, 35, 0.12);
  border-color: rgba(245, 166, 35, 0.45);
}

.chord-tone-note {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text);
}

.chord-tone-chip.chord-tone-root .chord-tone-note {
  color: #f5c96a;
}

.chord-tone-deg {
  font-size: 0.65rem;
  font-weight: 600;
  color: var(--muted);
  letter-spacing: 0.04em;
}

/* Legend swatches for chord mode */
.swatch-chord-root-amber {
  background: #f5a623;
  border: 1px solid rgba(245, 166, 35, 0.8);
}

.swatch-chord-tone-amber {
  background: rgba(245, 210, 140, 0.88);
  border: 1px solid rgba(200, 150, 50, 0.65);
}

.window-highlight-pair {
  background: rgba(79, 140, 255, 0.07);
  border-color: rgba(133, 176, 255, 0.22);
}

/* ── Diatonic palette ─────────────────────────────────────────────────────── */

.diatonic-panel {
  padding: 18px 24px;
  margin-bottom: 18px;
}

.diatonic-head {
  align-items: center;
  margin-bottom: 14px;
}

.field-root-inline {
  display: flex;
  flex-direction: column;
  gap: 8px;
  min-width: 210px;
}

.field-root-inline span {
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: normal;
  text-transform: none;
  color: var(--text);
}

.field-root-inline select {
  width: 100%;
  min-height: 54px;
  padding: 0 18px;
  border: 1px solid var(--border);
  border-radius: 14px;
  background: #0f1520;
  color: var(--text);
  font: inherit;
  font-size: 1.15rem;
  font-weight: 600;
}

.field-root-inline select:focus {
  outline: none;
  border-color: var(--border-strong);
}

.diatonic-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.diatonic-chip {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 3px;
  min-width: 52px;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 14px;
  background: #0f1520;
  color: var(--muted);
  font: inherit;
  cursor: pointer;
  transition: border-color 0.18s ease, background 0.18s ease, color 0.18s ease, transform 0.18s ease;
}

.diatonic-chip:hover {
  transform: translateY(-1px);
  border-color: var(--border-strong);
}

.diatonic-chip.active {
  background: #162133;
  border-color: #5a86d8;
  color: #dce8ff;
}

.diatonic-symbol {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--muted);
}

.diatonic-chip.active .diatonic-symbol {
  color: #8aaef5;
}

.diatonic-name {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--text);
}

/* ── Position cards divider ───────────────────────────────────────────────── */

.cards-divider {
  display: block;
  color: var(--muted);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  padding: 6px 4px 2px;
  border-top: 1px solid var(--border);
  margin-top: 4px;
}

@media (max-width: 1040px) {
  .control-stack {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .bottom-grid {
    grid-template-columns: 1fr;
  }

  .progression-bar {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 720px) {
  .site-nav {
    backdrop-filter: none;
  }

  body:not(.chord-mode) .positions-panel {
    display: none;
  }

  .panel {
    backdrop-filter: none;
    box-shadow: 0 10px 24px rgba(0, 0, 0, 0.22);
  }

  .shell {
    padding: 20px 12px 32px;
  }

  .controls-panel,
  .neck-panel,
  .details-panel,
  .positions-panel,
  .side-panel {
    padding: 18px;
    border-radius: 20px;
  }

  .section-head {
    flex-direction: column;
  }

  .supporting-copy {
    max-width: none;
  }

  .control-stack,
  .info-grid {
    grid-template-columns: 1fr;
  }

  .progression-input-row {
    flex-direction: column;
  }

  .note-dot,
  .note-dot.root,
  .note-dot.chord,
  .note-dot.chord-root,
  .note-dot.chord-outline,
  .note-dot.chord-root-outline {
    box-shadow: none;
  }

  .window-draggable {
    transition: none;
  }

  .diatonic-panel,
  .controls-panel,
  .positions-panel,
  .side-panel {
    content-visibility: auto;
  }

  .diatonic-panel {
    contain-intrinsic-size: 240px;
  }

  .controls-panel {
    contain-intrinsic-size: 220px;
  }

  .positions-panel {
    contain-intrinsic-size: 420px;
  }

  .side-panel {
    contain-intrinsic-size: 520px;
  }
}

/* ── Mobile (≤ 540px) ─────────────────────────────────────────────────────── */
@media (max-width: 540px) {
  /* Nav — hide links and social, keep logo only */
  .site-nav {
    padding: 0.65rem 4vw;
  }

  .site-nav-logo img {
    height: 22px;
    max-width: 130px;
  }

  .site-nav-links {
    display: none;
  }

  .site-nav-social {
    display: none;
  }

  /* Hero */
  .hero {
    margin-bottom: 12px;
  }

  .subtitle {
    font-size: 0.82rem;
  }

  /* Shell padding */
  .shell {
    padding: 14px 10px 28px;
  }

  /* Panels */
  .controls-panel,
  .neck-panel,
  .details-panel,
  .positions-panel,
  .side-panel,
  .progression-panel,
  .diatonic-panel {
    padding: 14px;
    border-radius: 16px;
  }

  /* Neck head — stack mode toggle + selectors vertically */
  .neck-head {
    flex-direction: column;
    gap: 10px;
  }

  .neck-head .status-stack {
    flex-direction: row;
    justify-content: flex-start;
    flex-wrap: wrap;
    gap: 8px;
  }

  .status-pill {
    min-width: 100px;
    padding: 10px 12px;
  }

  /* Make title root selectors smaller on mobile */
  .root-title-select,
  .scale-title-select,
  .chord-quality-select {
    font-size: clamp(1.1rem, 5vw, 1.6rem) !important;
  }

  /* Scale title/root group — wrap onto two lines if needed */
  .title-root-group {
    flex-direction: column;
    align-items: flex-start;
    gap: 6px;
  }

  .title-root-selector {
    flex-wrap: wrap;
    gap: 6px;
  }

  /* Mode toggle — full width */
  .mode-toggle {
    width: 100%;
  }

  .mode-btn {
    flex: 1;
    padding: 6px 10px;
  }

  /* Controls — single column */
  .control-stack {
    grid-template-columns: 1fr 1fr;
    gap: 10px;
  }

  /* Segmented controls — wrap */
  .segmented-control {
    flex-wrap: wrap;
    gap: 6px;
  }

  .segment-button {
    min-height: 36px;
    padding: 0 10px;
    font-size: 0.78rem;
  }

  /* Progression panel */
  .progression-bar {
    grid-template-columns: 1fr;
    gap: 10px;
  }

  /* Chord diagram panel */
  .prog-diagram-strip {
    gap: 8px;
  }

  .prog-diagram-card {
    padding: 6px 6px 4px;
  }

  /* Neck frame — tighter padding */
  .neck-frame {
    padding: 12px 10px 16px;
    border-radius: 14px;
  }

  /* Bottom grid — already stacked at 1040px, just tighten */
  .bottom-grid {
    gap: 12px;
  }

  /* Position cards — tighter */
  .position-card {
    padding: 12px;
    border-radius: 14px;
  }

  /* Diatonic chips — smaller */
  .diatonic-chip {
    min-width: 44px;
    padding: 8px 10px;
  }

  .diatonic-name {
    font-size: 0.8rem;
  }

  /* Info grid — single column */
  .info-grid {
    grid-template-columns: 1fr;
  }

  /* Legend — tighter */
  .legend-chip {
    padding: 6px 10px;
    font-size: 0.78rem;
  }

  /* Voicing browser mini diagrams — allow scroll */
  .position-cards {
    display: flex;
    flex-direction: row;
    flex-wrap: wrap;
    gap: 10px;
  }

  .voicing-card {
    flex: 1 1 140px;
  }

  /* Chord tone chips */
  .chord-tone-row {
    gap: 6px;
  }

  .chord-tone-chip {
    padding: 6px 8px;
    min-width: 40px;
  }
}

/* ── Root title selector ──────────────────────────────────────────────────── */

.title-root-group {
  display: flex;
  align-items: center;
  gap: 10px;
}

.title-root-selector {
  display: flex;
  align-items: center;
  gap: 10px;
}

.root-title-select {
  appearance: none;
  -webkit-appearance: none;
  background: transparent;
  border: none;
  border-bottom: 2px solid rgba(133, 176, 255, 0.5);
  border-radius: 0;
  color: var(--text);
  font: inherit;
  font-size: clamp(1.4rem, 2.8vw, 2.4rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  padding: 0 28px 2px 2px;
  cursor: pointer;
  min-width: 60px;
  line-height: 1;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%239ba8bb' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 4px center;
  transition: border-color 0.18s ease;
}

.root-title-select:hover {
  border-bottom-color: rgba(133, 176, 255, 0.9);
}

.root-title-select:focus {
  outline: none;
  border-bottom-color: #5a86d8;
}

.root-title-select option {
  background: #0f1520;
  color: var(--text);
  font-size: 1rem;
}

.scale-name-label {
  font-size: clamp(1.8rem, 3.5vw, 2.8rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  color: #ffffff;
  line-height: 1;
}

.scale-title-select {
  appearance: none;
  -webkit-appearance: none;
  background: transparent;
  border: none;
  border-bottom: 2px solid rgba(133, 176, 255, 0.5);
  border-radius: 0;
  color: #ffffff;
  font: inherit;
  font-size: clamp(1.4rem, 2.8vw, 2.4rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  padding: 0 32px 2px 2px;
  cursor: pointer;
  line-height: 1;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%23ffffff' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 4px center;
  transition: border-color 0.18s ease;
}

.scale-title-select:hover {
  border-bottom-color: rgba(133, 176, 255, 0.9);
}

.scale-title-select:focus {
  outline: none;
  border-bottom-color: #5a86d8;
}

.scale-title-select option {
  background: #0f1520;
  color: var(--text);
  font-size: 1rem;
}

/* ── Draggable + resizable window highlight ───────────────────────────────── */

.window-draggable {
  cursor: grab;
  pointer-events: all;
  transition: left 0.25s cubic-bezier(0.34, 1.56, 0.64, 1), width 0.25s cubic-bezier(0.34, 1.56, 0.64, 1), background 0.15s ease;
  user-select: none;
}

.window-draggable:hover {
  background: rgba(79, 140, 255, 0.15);
  border-color: rgba(133, 176, 255, 0.45);
}

.window-draggable:active {
  cursor: grabbing;
  background: rgba(79, 140, 255, 0.2);
  border-color: rgba(133, 176, 255, 0.6);
}

.drag-handle-left,
.drag-handle-right {
  position: absolute;
  top: 0;
  bottom: 0;
  width: 18px;
  cursor: ew-resize;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 2;
}

.drag-handle-left { left: 0; border-radius: 18px 0 0 18px; }
.drag-handle-right { right: 0; border-radius: 0 18px 18px 0; }

.drag-handle-left::after,
.drag-handle-right::after {
  content: '';
  width: 3px;
  height: 28px;
  border-radius: 2px;
  background: rgba(133, 176, 255, 0.45);
  transition: background 0.15s ease, height 0.15s ease;
}

.window-draggable:hover .drag-handle-left::after,
.window-draggable:hover .drag-handle-right::after {
  background: rgba(133, 176, 255, 0.85);
  height: 36px;
}

.drag-hint {
  position: absolute;
  bottom: 6px;
  left: 50%;
  transform: translateX(-50%);
  font-size: 0.72rem;
  color: rgba(133, 176, 255, 0.5);
  pointer-events: none;
  white-space: nowrap;
  letter-spacing: 0.04em;
  transition: opacity 0.2s ease;
}

.window-draggable:hover .drag-hint {
  color: rgba(133, 176, 255, 0.85);
}

/* ── MODE TOGGLE ── */
.mode-toggle {
  display: flex;
  gap: 2px;
  background: var(--accent-soft);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 3px;
  margin-bottom: 10px;
}

.mode-btn {
  flex: 1;
  padding: 5px 16px;
  border: none;
  border-radius: 8px;
  background: transparent;
  color: var(--muted);
  font-family: inherit;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  cursor: pointer;
  transition: background 0.15s, color 0.15s;
}

.mode-btn.active {
  background: var(--border-strong);
  color: var(--text);
}

body.chord-mode .mode-btn#mode-chord.active {
  background: rgba(245, 166, 35, 0.22);
  color: #f5c96a;
  border-radius: 8px;
}

body.chord-mode .window-highlight {
  background: rgba(245, 166, 35, 0.08);
  border-color: rgba(245, 166, 35, 0.30);
  box-shadow: inset 0 0 0 1px rgba(245, 166, 35, 0.06), 0 0 0 1px rgba(9, 17, 29, 0.25);
}

body.chord-mode .diatonic-chip.active {
  background: #1e1608;
  border-color: #b87214;
  color: #f5c96a;
}

body.chord-mode .diatonic-chip.active .diatonic-symbol {
  color: #e8a832;
}

body.chord-mode .progression-chip.active {
  background: #1e1608;
  border-color: #b87214;
  color: #f5c96a;
}

body.chord-mode .segment-button.active {
  background: #f5c96a;
  border-color: #f5c96a;
  color: #2a1a00;
}

.chord-quality-select {
  appearance: none;
  -webkit-appearance: none;
  background: transparent;
  border: none;
  border-bottom: 2px solid rgba(133, 176, 255, 0.5);
  border-radius: 0;
  color: var(--text);
  font-family: 'Exo 2', sans-serif;
  font-size: clamp(1.4rem, 2.8vw, 2.4rem);
  font-weight: 700;
  cursor: pointer;
  outline: none;
  padding: 0 28px 2px 2px;
  min-width: 60px;
  line-height: 1;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%239ba8bb' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 4px center;
  transition: border-color 0.18s ease;
}

.chord-quality-select:hover {
  border-bottom-color: rgba(133, 176, 255, 0.9);
}

.chord-quality-select:focus {
  outline: none;
  border-bottom-color: #5a86d8;
}

.chord-quality-select option,
.chord-quality-select optgroup {
  background: #111926;
  color: var(--text);
  font-size: 0.9rem;
}

/* ── CHORD DIAGRAM ── */
.chord-diagram-panel {
  margin-top: 18px;
  padding: 16px 20px 12px;
  border-top: 1px solid var(--border);
}

.chord-diagram-wrap {
  display: flex;
  align-items: flex-end;
  gap: 20px;
  flex-wrap: wrap;
}

.chord-diagram-name {
  font-family: 'Exo 2', sans-serif;
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text);
  min-width: 60px;
}

.chord-diagram {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 0;
}

/* The diagram is horizontal — strings run left-right, frets run up-down */
/* We'll render it as an SVG injected by JS */
.chord-diagram svg {
  display: block;
}

/* Mute / open indicators above diagram */
.chord-diagram-indicators {
  display: flex;
  gap: 0;
  margin-bottom: 4px;
}

/* Fingering labels below diagram */
.chord-diagram-fingering {
  display: flex;
  gap: 0;
  margin-top: 4px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.65rem;
  color: var(--muted);
}

/* ── CHORD VOICING DOTS ── */
.chord-voicing-dot {
  /* Base style — used for all chord dots on the main fretboard */
  background: rgba(200, 225, 255, 0.85);
  color: #0b1220;
  border: 1px solid rgba(100, 180, 255, 0.6);
  box-shadow: 0 2px 8px rgba(0,0,0,0.2);
}

/* Non-root chord tones: blue */
.chord-voicing-tone {
  background: rgba(200, 225, 255, 0.85);
  border-color: rgba(100, 180, 255, 0.6);
  color: #0b1220;
}

/* Root dot: amber */
.chord-voicing-root {
  background: #f5a623;
  color: #2a1200;
  border-color: rgba(245, 166, 35, 0.9);
  box-shadow: 0 0 0 2px rgba(245, 166, 35, 0.35), 0 2px 8px rgba(0,0,0,0.2);
}

.chord-voicing-dot.chord.chord-root {
  background: #f8f2cf;
  color: #3e3208;
  border-color: rgba(226, 196, 92, 0.8);
  box-shadow: 0 0 0 2px rgba(248,242,207,0.5), 0 2px 8px rgba(0,0,0,0.2);
}

body.chord-mode .chord-voicing-dot.chord.chord-root {
  background: #f5a623;
  color: #2a1200;
  border-color: rgba(245, 166, 35, 0.9);
  box-shadow: 0 0 0 2px rgba(245, 166, 35, 0.35), 0 2px 8px rgba(0,0,0,0.2);
}

/* Finger numbers inside chord dots — larger, bolder, clearly different from degree labels */
.chord-finger-label {
  font-family: 'JetBrains Mono', monospace !important;
  font-size: 0.78rem !important;
  font-weight: 700 !important;
  letter-spacing: 0 !important;
}

/* Note names on chord dots — smaller font to fit */
.chord-note-label {
  font-size: 0.58rem !important;
  font-weight: 700 !important;
  letter-spacing: -0.03em !important;
}

/* Mute marker to left of nut */
.chord-mute-marker {
  font-family: sans-serif;
  line-height: 1;
  user-select: none;
}

/* ── CHORD MODE window — display only, no manual dragging ── */
.window-chord-mode .drag-handle-left,
.window-chord-mode .drag-handle-right {
  display: none;
}

.window-chord-mode {
  cursor: default;
}

.window-chord-mode .drag-hint {
  display: none;
}

/* ── GHOSTED KEY PENTATONIC DOTS ── */
/* Shown during chord swap — original key pent notes that aren't in chord's pent */
.note-dot.pent-ghost {
  background: rgba(80, 100, 130, 0.55);
  color: rgba(180, 205, 230, 0.8);
  border-color: rgba(100, 130, 170, 0.5);
  box-shadow: none;
  transform: translate(-50%, -50%) scale(0.88);
  z-index: 0;
  pointer-events: none;
}

.note-dot.pent-ghost.pent-ghost-root {
  background: rgba(160, 140, 60, 0.5);
  color: rgba(230, 205, 110, 0.8);
  border-color: rgba(200, 170, 70, 0.5);
}

.note-dot.pent-ghost.faded {
  opacity: 0.3;
}

/* ── PROGRESSION DIAGRAM STRIP (chord mode) ── */
.progression-chips:has(.prog-diagram-card) {
  display: flex;
  flex-direction: row;
  gap: 10px;
  overflow-x: auto;
  padding: 8px 2px 12px;
  scrollbar-width: thin;
  scrollbar-color: var(--border) transparent;
}

.prog-diagram-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 5px;
  padding: 10px 10px 8px;
  background: #111926;
  border: 1px solid var(--border);
  border-radius: 12px;
  cursor: pointer;
  transition: border-color 0.15s, background 0.15s, transform 0.12s;
  flex-shrink: 0;
}

.prog-diagram-card:hover {
  border-color: var(--accent);
  background: #151f30;
}

.prog-diagram-card.active {
  border-color: var(--cyan);
  background: rgba(0, 200, 255, 0.06);
  box-shadow: 0 0 0 1px rgba(0, 200, 255, 0.25);
}

.prog-diagram-name {
  font-family: 'Exo 2', sans-serif;
  font-size: 0.84rem;
  font-weight: 700;
  color: var(--text);
  letter-spacing: 0.02em;
  line-height: 1.15;
  text-align: center;
}

.prog-diagram-card.active .prog-diagram-name {
  color: var(--cyan);
}

.prog-diagram-svg {
  display: block;
  line-height: 0;
  pointer-events: none;
}

.prog-diagram-svg svg,
.prog-diagram-svg svg * {
  pointer-events: none;
}

/* ── PROGRESSION DIAGRAM STRIP (below fretboard in chord mode) ── */
.prog-diagram-strip {
  display: flex;
  flex-direction: row;
  gap: 10px;
  overflow-x: auto;
  padding: 2px 2px 6px;
  scrollbar-width: thin;
  scrollbar-color: var(--border) transparent;
}

/* ── SCALE MODE PROGRESSION MINI FRETBOARDS ── */
.prog-diagram-card.scale-mini {
  min-width: 80px;
}

.prog-diagram-card.scale-mini .prog-diagram-svg svg {
  display: block;
}
.fingering-legend {
  font-size: 0.72rem;
  color: var(--text-muted, #7a8fa8);
  letter-spacing: 0.02em;
  line-height: 1.4;
  padding: 4px 0;
}

.chord-diagram-hint {
  font-size: 0.7rem;
  color: var(--text-muted, #7a8fa8);
  text-align: center;
  margin: 4px 0 0;
  letter-spacing: 0.02em;
  opacity: 0.8;
}

.progression-grid {
  display: grid;
  grid-template-columns: repeat(var(--progression-grid-columns, 1), minmax(0, 1fr));
  gap: 10px;
  width: 100%;
}

.progression-grid-card {
  display: grid;
  gap: 10px;
  padding: 12px;
  border-radius: 16px;
  border: 1px solid var(--border);
  background: #101723;
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.02);
  cursor: pointer;
  min-width: 0;
  width: 100%;
  max-width: 920px;
  justify-self: center;
}

.progression-grid-card.active {
  border-color: var(--cyan);
  background: rgba(0, 200, 255, 0.06);
  box-shadow: 0 0 0 1px rgba(0, 200, 255, 0.18);
}

body.chord-mode .progression-grid-card.active {
  border-color: #b87214;
  background: rgba(245, 166, 35, 0.08);
  box-shadow: 0 0 0 1px rgba(245, 166, 35, 0.22);
}

.progression-grid-card-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 10px;
}

.progression-grid-card-name {
  font-family: 'Exo 2', sans-serif;
  font-size: 1.02rem;
  font-weight: 700;
  color: var(--text);
}

.progression-grid-card-shape,
.progression-grid-window {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.68rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
}

.progression-grid-window {
  letter-spacing: 0.08em;
}

.progression-grid-card-controls {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-shrink: 0;
}

.progression-grid-btn {
  min-height: 30px;
  padding: 0 10px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: #151f30;
  color: var(--text);
  font: inherit;
  cursor: pointer;
  transition: border-color 0.16s ease, background 0.16s ease, transform 0.16s ease;
}

.progression-grid-btn:hover {
  transform: translateY(-1px);
  border-color: var(--border-strong);
}

body.chord-mode .progression-grid-btn:hover {
  border-color: rgba(245, 166, 35, 0.5);
}

.progression-grid-toggle {
  font-size: 0.78rem;
  white-space: nowrap;
}

.progression-grid-fretboard {
  overflow: hidden;
  border-radius: 12px;
  border: 1px solid rgba(255,255,255,0.04);
  background: linear-gradient(180deg, rgba(9,15,25,0.9), rgba(12,19,30,0.96));
  padding: 8px;
}

.progression-grid-fretboard svg {
  width: 100%;
  height: auto;
  display: block;
}

.chord-progression-grid-card .progression-grid-card-shape,
.chord-progression-grid-card .progression-grid-window {
  color: #d6b27a;
}

@media (max-width: 1180px) {
  .progression-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 720px) {
  .progression-grid {
    grid-template-columns: 1fr;
  }

  .progression-grid-card-head {
    flex-direction: column;
  }
}
/* ── PRESET SYSTEM ──────────────────────────────────────────────────────────── */

/* Panel wrapper */
.presets-panel {
  padding: 24px;
  margin-bottom: 18px;
}

/* Empty state */
.presets-empty {
  color: var(--muted);
  font-size: 0.85rem;
  line-height: 1.6;
  margin: 0;
}
.presets-empty em { color: var(--text); font-style: normal; }

/* Save current button (in section-head) */
.preset-save-btn {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 7px 14px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: transparent;
  color: var(--cyan);
  font: inherit;
  font-size: 0.78rem;
  font-family: 'JetBrains Mono', monospace;
  letter-spacing: 0.04em;
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s, color 0.15s;
  white-space: nowrap;
  flex-shrink: 0;
}
.preset-save-btn:hover {
  background: rgba(0, 180, 255, 0.07);
  border-color: var(--cyan);
}

/* Preset list */
.presets-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

/* Preset card */
.preset-card {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 16px;
  border: 1px solid var(--border);
  border-radius: 14px;
  background: #0d1724;
  transition: border-color 0.15s, background 0.15s;
}
.preset-card:hover {
  border-color: rgba(90, 134, 216, 0.4);
  background: #101e30;
}

.preset-card-main {
  flex: 1;
  min-width: 0;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 10px;
}

.preset-card-body {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.preset-card-name {
  font-size: 0.92rem;
  font-weight: 600;
  color: #dce8ff;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.preset-card-summary {
  font-size: 0.76rem;
  color: var(--muted);
  font-family: 'JetBrains Mono', monospace;
  letter-spacing: 0.02em;
}

.preset-card-notes {
  margin-top: 5px;
  font-size: 0.78rem;
  color: rgba(160, 185, 210, 0.75);
  line-height: 1.5;
  white-space: pre-wrap;
  word-break: break-word;
  max-height: 4.5em;
  overflow: hidden;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
}

.preset-card-meta {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 8px;
  flex-shrink: 0;
}

.preset-card-date {
  font-size: 0.7rem;
  color: var(--muted);
  font-family: 'JetBrains Mono', monospace;
  opacity: 0.7;
}

.preset-card-actions {
  display: flex;
  gap: 5px;
}

.preset-action-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  transition: background 0.13s, color 0.13s, border-color 0.13s;
}
.preset-action-btn:hover {
  background: rgba(90, 134, 216, 0.12);
  color: var(--cyan);
  border-color: rgba(90, 134, 216, 0.35);
}
.preset-action-btn--danger:hover {
  background: rgba(239, 68, 68, 0.1);
  color: #f87171;
  border-color: rgba(239, 68, 68, 0.35);
}

.preset-load-btn {
  flex-shrink: 0;
  padding: 8px 16px;
  border: 1px solid rgba(90, 134, 216, 0.45);
  border-radius: 10px;
  background: rgba(90, 134, 216, 0.08);
  color: var(--cyan);
  font: inherit;
  font-size: 0.78rem;
  font-family: 'JetBrains Mono', monospace;
  letter-spacing: 0.06em;
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s;
}
.preset-load-btn:hover {
  background: rgba(90, 134, 216, 0.18);
  border-color: var(--cyan);
}

/* ── Save Preset Modal ───────────────────────────────────────────────────────── */

.preset-modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 9000;
  background: rgba(4, 8, 18, 0.72);
  backdrop-filter: blur(6px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.preset-modal {
  width: min(520px, 100%);
  background: #0d1826;
  border: 1px solid rgba(90, 134, 216, 0.3);
  border-radius: 18px;
  padding: 28px;
  display: flex;
  flex-direction: column;
  gap: 20px;
  box-shadow: 0 24px 64px rgba(0, 0, 0, 0.6);
  animation: preset-modal-in 0.18s ease;
}

@keyframes preset-modal-in {
  from { opacity: 0; transform: translateY(10px) scale(0.97); }
  to   { opacity: 1; transform: translateY(0) scale(1); }
}

.preset-modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.preset-modal-header h3 {
  margin: 0;
  font-family: 'Exo 2', sans-serif;
  font-size: 1.1rem;
  font-weight: 700;
  color: #dce8ff;
}

.preset-modal-close {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  transition: color 0.13s, background 0.13s;
}
.preset-modal-close:hover { color: #fff; background: rgba(255,255,255,0.07); }

.preset-modal-summary {
  font-size: 0.78rem;
  font-family: 'JetBrains Mono', monospace;
  color: var(--cyan-dim);
  background: rgba(0, 180, 255, 0.05);
  border: 1px solid rgba(0, 180, 255, 0.12);
  border-radius: 8px;
  padding: 9px 14px;
  letter-spacing: 0.03em;
}

.preset-modal-field {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.preset-modal-label {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.74rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
}

.preset-notes-counter {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.72rem;
  font-weight: 400;
  letter-spacing: 0.04em;
  text-transform: none;
  color: var(--muted);
  opacity: 0.7;
  transition: color 0.15s;
}
.preset-notes-counter--warn { color: #f5a623; opacity: 1; }

.preset-modal-input,
.preset-modal-textarea {
  width: 100%;
  padding: 10px 14px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: #0a1120;
  color: var(--text);
  font: inherit;
  font-size: 0.9rem;
  box-sizing: border-box;
  transition: border-color 0.15s;
  resize: vertical;
}
.preset-modal-input:focus,
.preset-modal-textarea:focus {
  outline: none;
  border-color: var(--cyan);
}
.preset-modal-input--error {
  border-color: #f87171 !important;
}
.preset-modal-textarea {
  min-height: 96px;
  line-height: 1.55;
}

.preset-modal-actions {
  display: flex;
  justify-content: flex-end;
  gap: 10px;
  margin-top: 4px;
}

.preset-modal-btn {
  padding: 10px 22px;
  border-radius: 10px;
  font: inherit;
  font-size: 0.85rem;
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s, color 0.15s;
}
.preset-modal-cancel {
  border: 1px solid var(--border);
  background: transparent;
  color: var(--muted);
}
.preset-modal-cancel:hover { background: rgba(255,255,255,0.05); color: var(--text); }
.preset-modal-save {
  border: 1px solid rgba(90, 134, 216, 0.6);
  background: rgba(90, 134, 216, 0.15);
  color: var(--cyan);
  font-weight: 600;
}
.preset-modal-save:hover {
  background: rgba(90, 134, 216, 0.28);
  border-color: var(--cyan);
}

/* ── Toast ───────────────────────────────────────────────────────────────────── */

.preset-toast {
  position: fixed;
  bottom: 28px;
  left: 50%;
  transform: translateX(-50%) translateY(12px);
  z-index: 9500;
  padding: 10px 20px;
  background: #1a2840;
  border: 1px solid rgba(90, 134, 216, 0.35);
  border-radius: 999px;
  color: #dce8ff;
  font-size: 0.82rem;
  font-family: 'JetBrains Mono', monospace;
  letter-spacing: 0.04em;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.5);
  opacity: 0;
  transition: opacity 0.22s ease, transform 0.22s ease;
  white-space: nowrap;
  pointer-events: none;
}
.preset-toast--visible {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

/* ── Chord mode tinting for presets panel ───────────────────────────────────── */
body.chord-mode .presets-panel {
  background: rgba(24, 18, 8, 0.94);
  border-color: rgba(120, 80, 20, 0.35);
}
body.chord-mode .preset-save-btn {
  color: var(--cyan);
  border-color: rgba(120, 80, 20, 0.4);
}
body.chord-mode .preset-save-btn:hover {
  background: rgba(245, 166, 35, 0.07);
  border-color: var(--cyan);
}
body.chord-mode .preset-load-btn {
  border-color: rgba(245, 166, 35, 0.35);
  background: rgba(245, 166, 35, 0.07);
}
body.chord-mode .preset-load-btn:hover {
  background: rgba(245, 166, 35, 0.15);
  border-color: var(--cyan);
}

/* ── Responsive ─────────────────────────────────────────────────────────────── */
@media (max-width: 600px) {
  .preset-card {
    flex-direction: column;
    align-items: stretch;
    gap: 10px;
  }
  .preset-load-btn {
    width: 100%;
    text-align: center;
  }
  .preset-card-meta {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }
}

/* ── Preset system additions (v2) ────────────────────────────────────────────── */

/* Title row with count badge */
.presets-title-group {
  display: flex;
  align-items: center;
  gap: 10px;
}
.presets-title-group h3 {
  margin: 0;
}
.presets-count {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.68rem;
  letter-spacing: 0.08em;
  color: var(--muted);
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 2px 9px;
  opacity: 0.75;
}

/* Disabled save button (at limit) */
.preset-save-btn--disabled {
  opacity: 0.38;
  cursor: not-allowed;
  pointer-events: none;
}

/* Drag handle */
.preset-drag-handle {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 22px;
  color: var(--border);
  cursor: grab;
  padding: 0 2px;
  transition: color 0.13s;
  touch-action: none;
}
.preset-card:hover .preset-drag-handle {
  color: rgba(100, 140, 180, 0.45);
}
.preset-drag-handle:active {
  cursor: grabbing;
}

/* Active preset card */
.preset-card--active {
  border-color: rgba(90, 134, 216, 0.55);
  background: #101e30;
}
.preset-card--active .preset-drag-handle {
  color: rgba(90, 134, 216, 0.35);
}

/* Drag-over drop target highlight */
.preset-card--drag-over {
  border-color: var(--cyan);
  background: rgba(0, 180, 255, 0.07);
  transform: scale(1.01);
  transition: transform 0.1s ease, border-color 0.1s ease;
}

/* Dragging ghost — fade the source card */
.preset-card--dragging {
  opacity: 0.35;
}

/* Name row with active badge inline */
.preset-card-name-row {
  display: flex;
  align-items: center;
  gap: 8px;
  min-width: 0;
}
.preset-card-name-row .preset-card-name {
  flex: 1;
  min-width: 0;
}

/* Active badge */
.preset-active-badge {
  flex-shrink: 0;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.6rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: #5acea8;
  background: rgba(90, 206, 168, 0.1);
  border: 1px solid rgba(90, 206, 168, 0.3);
  border-radius: 4px;
  padding: 2px 6px;
}

/* Chord mode tinting for active badge */
body.chord-mode .preset-active-badge {
  color: #f5a623;
  background: rgba(245, 166, 35, 0.1);
  border-color: rgba(245, 166, 35, 0.3);
}

/* Adjust card layout to accommodate drag handle */
.preset-card {
  display: flex;
  align-items: center;
  gap: 0;
}
.preset-card .preset-drag-handle {
  margin-right: 8px;
}

/* ── AUTH SYSTEM ─────────────────────────────────────────────────────────────── */

/* Nav auth slot */
.nav-auth-slot {
  display: flex;
  align-items: center;
  position: relative;
  margin-right: 0.5rem;
}

.nav-auth-btns {
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav-btn-ghost {
  padding: 7px 14px;
  border: 1px solid var(--site-border);
  border-radius: 8px;
  background: transparent;
  color: rgba(100, 140, 170, 0.85);
  font: inherit;
  font-size: 0.78rem;
  font-family: 'JetBrains Mono', monospace;
  letter-spacing: 0.06em;
  cursor: pointer;
  transition: color 0.15s, border-color 0.15s, background 0.15s;
  white-space: nowrap;
}
.nav-btn-ghost:hover {
  color: var(--cyan);
  border-color: var(--site-border-hi);
  background: rgba(0, 200, 255, 0.05);
}

.nav-btn-primary {
  padding: 7px 16px;
  border: 1px solid var(--cyan);
  border-radius: 8px;
  background: rgba(0, 200, 255, 0.1);
  color: var(--cyan);
  font: inherit;
  font-size: 0.78rem;
  font-family: 'JetBrains Mono', monospace;
  letter-spacing: 0.06em;
  cursor: pointer;
  transition: background 0.15s, box-shadow 0.15s;
  white-space: nowrap;
}
.nav-btn-primary:hover {
  background: rgba(0, 200, 255, 0.18);
  box-shadow: 0 0 12px rgba(0, 200, 255, 0.15);
}

/* Logged-in user pill */
.nav-user-pill {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 5px 10px 5px 6px;
  border: 1px solid var(--site-border);
  border-radius: 999px;
  background: rgba(255,255,255,0.03);
  cursor: pointer;
  transition: border-color 0.15s, background 0.15s;
  user-select: none;
}
.nav-user-pill:hover,
.nav-user-pill--open {
  border-color: var(--site-border-hi);
  background: rgba(0, 200, 255, 0.06);
}

.nav-avatar {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: linear-gradient(135deg, #0090bb, #00c8ff);
  color: #020810;
  font-size: 0.68rem;
  font-weight: 700;
  font-family: 'Exo 2', sans-serif;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.nav-username {
  font-size: 0.76rem;
  font-family: 'JetBrains Mono', monospace;
  color: var(--text);
  max-width: 100px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.nav-chevron {
  color: var(--muted);
  transition: transform 0.18s ease;
  flex-shrink: 0;
}
.nav-user-pill--open .nav-chevron {
  transform: rotate(180deg);
}

/* Dropdown menu */
.nav-user-dropdown {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  z-index: 500;
  min-width: 200px;
  background: #0d1826;
  border: 1px solid rgba(90, 134, 216, 0.3);
  border-radius: 12px;
  padding: 8px;
  box-shadow: 0 12px 32px rgba(0,0,0,0.5);
  animation: nav-dropdown-in 0.14s ease;
}
.nav-user-dropdown[hidden] { display: none; }

@keyframes nav-dropdown-in {
  from { opacity: 0; transform: translateY(-6px); }
  to   { opacity: 1; transform: translateY(0); }
}

.nav-dropdown-email {
  font-size: 0.72rem;
  color: var(--muted);
  padding: 6px 10px 8px;
  letter-spacing: 0.02em;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.nav-dropdown-divider {
  height: 1px;
  background: var(--border);
  margin: 2px 0 6px;
}

.nav-dropdown-item {
  display: flex;
  align-items: center;
  gap: 9px;
  width: 100%;
  padding: 9px 10px;
  border: none;
  border-radius: 8px;
  background: transparent;
  color: var(--muted);
  font: inherit;
  font-size: 0.82rem;
  cursor: pointer;
  transition: background 0.12s, color 0.12s;
  text-align: left;
}
.nav-dropdown-item:hover { background: rgba(255,255,255,0.05); color: var(--text); }
.nav-dropdown-signout:hover { color: #f87171; background: rgba(239, 68, 68, 0.08); }

/* ── Feature gate overlay ────────────────────────────────────────────────────── */

.panel--gated {
  position: relative;
  overflow: hidden;
  padding-top: 62px !important;
}

/* Dim the actual panel content so it shows faintly through the gate overlay */
.panel--gated > *:not(.feature-gate) {
  opacity: 0.25;
  pointer-events: none;
  user-select: none;
}

/* Overlay — covers the entire panel to block clicks, content dimmed via sibling rule */
.feature-gate {
  position: absolute;
  inset: 0;
  z-index: 10;
  background: transparent;
  border-radius: inherit;
  display: flex;
  flex-direction: column;
  align-items: stretch;
  justify-content: flex-start;
  pointer-events: all;
}

.feature-gate-inner {
  display: flex;
  flex-direction: row;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 10px 20px;
  flex-wrap: wrap;
  background: rgba(8, 14, 24, 0.97);
  border-bottom: 1px solid rgba(0, 200, 255, 0.12);
  border-radius: inherit inherit 0 0;
}

.feature-gate-icon {
  color: var(--cyan);
  opacity: 0.9;
  flex-shrink: 0;
  width: 18px;
  height: 18px;
}

.feature-gate-label {
  margin: 0;
  font-size: 0.85rem;
  color: var(--text);
  font-weight: 500;
  letter-spacing: 0.01em;
  flex: 1;
  min-width: 120px;
}

.feature-gate-btns {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  justify-content: flex-end;
  flex-shrink: 0;
}

.feature-gate-btn {
  padding: 8px 18px;
  border-radius: 9px;
  font: inherit;
  font-size: 0.8rem;
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s;
}
.feature-gate-btn--primary {
  border: 1px solid var(--cyan);
  background: rgba(0, 200, 255, 0.12);
  color: var(--cyan);
  font-family: 'JetBrains Mono', monospace;
  letter-spacing: 0.06em;
}
.feature-gate-btn--primary:hover {
  background: rgba(0, 200, 255, 0.22);
}
.feature-gate-btn--ghost {
  border: 1px solid var(--border);
  background: transparent;
  color: var(--muted);
}
.feature-gate-btn--ghost:hover {
  background: rgba(255,255,255,0.05);
  color: var(--text);
}

/* ── Auth modal ──────────────────────────────────────────────────────────────── */

.auth-modal-overlay {
  position: fixed;
  inset: 0;
  z-index: 9100;
  background: rgba(4, 8, 18, 0.78);
  backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.auth-modal {
  width: min(440px, 100%);
  background: #0b1524;
  border: 1px solid rgba(90, 134, 216, 0.25);
  border-radius: 20px;
  padding: 32px;
  display: flex;
  flex-direction: column;
  gap: 22px;
  box-shadow: 0 28px 70px rgba(0, 0, 0, 0.65);
  animation: auth-modal-in 0.2s ease;
}

@keyframes auth-modal-in {
  from { opacity: 0; transform: translateY(14px) scale(0.96); }
  to   { opacity: 1; transform: translateY(0) scale(1); }
}

.auth-modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.auth-modal-logo {
  display: flex;
  align-items: center;
  gap: 9px;
  font-family: 'Exo 2', sans-serif;
  font-weight: 700;
  font-size: 1rem;
  color: var(--text);
  letter-spacing: -0.01em;
}

.auth-modal-close {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  transition: color 0.13s, background 0.13s;
}
.auth-modal-close:hover { color: var(--text); background: rgba(255,255,255,0.06); }

/* Tabs */
.auth-modal-tabs {
  display: flex;
  gap: 2px;
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 3px;
}

.auth-tab {
  flex: 1;
  padding: 8px;
  border: none;
  border-radius: 8px;
  background: transparent;
  color: var(--muted);
  font: inherit;
  font-size: 0.82rem;
  font-weight: 500;
  cursor: pointer;
  transition: background 0.15s, color 0.15s;
}
.auth-tab--active {
  background: rgba(90, 134, 216, 0.18);
  color: var(--cyan);
  font-weight: 600;
}
.auth-tab:not(.auth-tab--active):hover {
  color: var(--text);
  background: rgba(255,255,255,0.04);
}

/* Panels */
.auth-panel { display: flex; flex-direction: column; gap: 16px; }
.auth-panel--hidden { display: none; }

.auth-panel-desc {
  margin: 0;
  font-size: 0.83rem;
  color: var(--muted);
  line-height: 1.55;
}

.auth-field {
  display: flex;
  flex-direction: column;
  gap: 7px;
}

.auth-label {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
}

.auth-input {
  width: 100%;
  padding: 11px 14px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: #080f1a;
  color: var(--text);
  font: inherit;
  font-size: 0.9rem;
  box-sizing: border-box;
  transition: border-color 0.15s;
}
.auth-input:focus {
  outline: none;
  border-color: var(--cyan);
}

.auth-error {
  font-size: 0.8rem;
  color: #f87171;
  background: rgba(239, 68, 68, 0.08);
  border: 1px solid rgba(239, 68, 68, 0.2);
  border-radius: 8px;
  padding: 9px 12px;
}
.auth-error[hidden] { display: none; }

@keyframes auth-shake {
  0%, 100% { transform: translateX(0); }
  20%, 60% { transform: translateX(-5px); }
  40%, 80% { transform: translateX(5px); }
}
.auth-error--shake { animation: auth-shake 0.35s ease; }

.auth-submit-btn {
  width: 100%;
  padding: 12px;
  border: 1px solid var(--cyan);
  border-radius: 10px;
  background: rgba(0, 200, 255, 0.12);
  color: var(--cyan);
  font: inherit;
  font-size: 0.88rem;
  font-weight: 600;
  font-family: 'JetBrains Mono', monospace;
  letter-spacing: 0.06em;
  cursor: pointer;
  transition: background 0.15s, box-shadow 0.15s;
  margin-top: 2px;
}
.auth-submit-btn:hover {
  background: rgba(0, 200, 255, 0.22);
  box-shadow: 0 0 18px rgba(0, 200, 255, 0.12);
}

.auth-switch-text {
  margin: 0;
  font-size: 0.78rem;
  color: var(--muted);
  text-align: center;
}
.auth-switch-link {
  border: none;
  background: none;
  color: var(--cyan);
  font: inherit;
  font-size: inherit;
  cursor: pointer;
  padding: 0;
  text-decoration: underline;
  text-underline-offset: 2px;
}
.auth-switch-link:hover { opacity: 0.8; }

/* Chord mode tinting */
body.chord-mode .nav-btn-primary {
  border-color: var(--cyan);
  background: rgba(245, 166, 35, 0.1);
  color: var(--cyan);
}
body.chord-mode .nav-avatar {
  background: linear-gradient(135deg, #b87214, #f5a623);
}

/* ── Gated dropdown options ──────────────────────────────────────────────────── */

/* Mute the appearance of disabled (gated) options */
select option:disabled {
  color: rgba(155, 168, 187, 0.45);
}

/* Small lock badge that appears next to gated optgroup labels — CSS only, no extra markup */
select optgroup[label*="Modes"] {
  /* Browser support for styling optgroups is limited; the 🔒 on each option is the main signal */
}
/* ── Shape browser cards ─────────────────────────────────────────────────────── */

/* Slightly wider than chord prog cards to accommodate the shape label */
.shape-browser-card {
  min-width: 104px;
}

.shape-browser-card .prog-diagram-name {
  display: flex;
  flex-direction: column;
  gap: 4px;
  font-size: 0.8rem;
  letter-spacing: 0.03em;
}

.chord-shape-card .prog-diagram-svg svg {
  width: 86px;
  height: auto;
}

.scale-shape-card .prog-diagram-svg svg {
  width: 98px;
  height: auto;
}

.shape-browser-chord-name {
  font-size: 0.92rem;
  font-weight: 800;
}

.shape-browser-shape-label {
  font-size: 0.82rem;
  font-weight: 700;
  color: rgba(214, 224, 239, 0.74);
  letter-spacing: 0.02em;
}

/* Active shape gets cyan border, same pattern as active progression card */
.shape-browser-card.active {
  border-color: var(--cyan);
  background: rgba(0, 200, 255, 0.08);
}

body.chord-mode .shape-browser-card.active {
  border-color: var(--cyan);
  background: rgba(245, 166, 35, 0.08);
}

/* ── Optional chord voicing strings (e.g. G-shape outer strings) ─────────────── */
.chord-voicing-optional {
  opacity: 0.38;
}

.roadmap-prompt-overlay {
  position: fixed;
  inset: 0;
  z-index: 1900;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  background: rgba(4, 8, 15, 0.78);
  backdrop-filter: blur(6px);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease;
}

.roadmap-prompt-overlay.open {
  opacity: 1;
  pointer-events: auto;
}

.roadmap-prompt-modal {
  width: min(460px, 100%);
  position: relative;
  padding: 26px 24px 22px;
  border-radius: 18px;
  border: 1px solid var(--site-border-hi);
  background: rgba(10, 15, 24, 0.96);
  box-shadow: 0 32px 80px rgba(0, 0, 0, 0.48);
}

.roadmap-prompt-close {
  position: absolute;
  top: 12px;
  right: 12px;
  width: 32px;
  height: 32px;
  border: none;
  border-radius: 8px;
  background: transparent;
  color: var(--muted);
  font-size: 1.3rem;
  cursor: pointer;
}

.roadmap-prompt-close:hover {
  color: var(--text);
  background: rgba(255, 255, 255, 0.06);
}

.roadmap-prompt-kicker {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.66rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--cyan-dim);
  margin-bottom: 10px;
}

.roadmap-prompt-title {
  margin: 0 0 10px;
  font-family: 'Exo 2', sans-serif;
  font-size: 1.55rem;
  line-height: 1.05;
}

.roadmap-prompt-copy {
  margin: 0 0 18px;
  color: var(--muted);
  line-height: 1.72;
  font-size: 0.95rem;
}

.roadmap-prompt-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.roadmap-prompt-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  padding: 0 14px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: rgba(0, 200, 255, 0.05);
  color: var(--text);
  text-decoration: none;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.7rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  transition: border-color 0.18s, color 0.18s, background 0.18s, transform 0.18s;
}

.roadmap-prompt-btn:hover {
  transform: translateY(-1px);
  border-color: var(--cyan);
  color: var(--cyan);
  background: rgba(0, 200, 255, 0.09);
}

.roadmap-prompt-btn--primary {
  border-color: var(--cyan);
  background: var(--cyan);
  color: #041019;
}

.roadmap-prompt-btn--primary:hover {
  color: #041019;
}

.roadmap-prompt-later {
  margin-top: 12px;
  padding: 0;
  border: none;
  background: none;
  color: var(--muted);
  cursor: pointer;
  font: inherit;
  font-size: 0.82rem;
}

.roadmap-prompt-later:hover {
  color: var(--text);
}

body.chord-mode .roadmap-prompt-modal {
  border-color: rgba(245, 166, 35, 0.38);
  background: rgba(23, 17, 9, 0.97);
}

body.chord-mode .roadmap-prompt-btn {
  background: rgba(245, 166, 35, 0.08);
}

body.chord-mode .roadmap-prompt-btn:hover {
  border-color: var(--cyan);
  color: var(--cyan);
  background: rgba(245, 166, 35, 0.14);
}

body.chord-mode .roadmap-prompt-btn--primary {
  background: var(--cyan);
  color: #1b1004;
}

@media (max-width: 560px) {
  .roadmap-prompt-actions {
    flex-direction: column;
  }

  .roadmap-prompt-btn {
    width: 100%;
  }
}