/* ---------- Base / theme ---------- */
:root {
  /* Dark theme (default) */
  --bg: #111215;
  --bg-elev: #23262c;        /* lighter button background */
  --bg-elev-2: #2d3037;
  --bg-elev-3: #383c44;
  --fg: #f2f3f5;
  --fg-dim: #b4b8bf;
  --fg-mute: #6d727b;
  /* Brighter, warmer amber */
  --accent: #ffb84a;
  --accent-strong: #ffcf6b;
  --accent-soft: #d99434;
  /* Signature gradient used for primary actions / progress */
  --accent-gradient: linear-gradient(135deg, #ffd275 0%, #ffb23c 50%, #f09122 100%);
  --accent-gradient-soft: linear-gradient(135deg, rgba(255,210,117,0.18) 0%, rgba(240,145,34,0.14) 100%);
  --track: #32353c;
  --radius: 14px;
  --radius-lg: 22px;
  --tap-highlight: rgba(255, 184, 74, 0.2);
  /* Theme-aware tokens */
  --border: rgba(255,255,255,0.06);
  --border-strong: rgba(255,255,255,0.10);
  --border-dashed: rgba(255,255,255,0.08);
  --inner-glow: rgba(255,255,255,0.04);
  --inner-glow-strong: rgba(255,255,255,0.06);
  --section-bg: rgba(241, 228, 191, 0.04);
  --legend-bg: rgba(241, 228, 191, 0.10);
  --shadow-sm: 0 3px 10px rgba(0,0,0,0.22);
  --shadow-md: 0 8px 24px rgba(0,0,0,0.35);
  --shadow-sheet: 0 -10px 30px rgba(0,0,0,0.45);
  --shell-tint-1: rgba(255,184,74,0.08);
  --shell-tint-2: rgba(255,184,74,0.05);
  --scrim: rgba(0,0,0,0.55);
  /* Top bar — slightly darker than --bg */
  --bar-bg: #0b0c0f;
  --bar-border: rgba(0,0,0,0.5);
}

[data-theme="light"] {
  --bg: #f6f3ec;
  --bg-elev: #ffffff;
  --bg-elev-2: #f0ede3;
  --bg-elev-3: #e4e0d2;
  --fg: #1a1a1d;
  --fg-dim: #4a4d54;
  --fg-mute: #7c8089;
  --track: #d8d4c8;
  --border: rgba(0,0,0,0.08);
  --border-strong: rgba(0,0,0,0.14);
  --border-dashed: rgba(0,0,0,0.14);
  --inner-glow: rgba(255,255,255,0.6);
  --inner-glow-strong: rgba(255,255,255,0.8);
  --section-bg: rgba(241, 228, 191, 0.45);
  --legend-bg: rgba(241, 228, 191, 0.55);
  --shadow-sm: 0 2px 8px rgba(74, 50, 10, 0.06);
  --shadow-md: 0 6px 20px rgba(74, 50, 10, 0.12);
  --shadow-sheet: 0 -10px 30px rgba(74, 50, 10, 0.18);
  --shell-tint-1: rgba(255,184,74,0.18);
  --shell-tint-2: rgba(255,184,74,0.10);
  --scrim: rgba(40, 30, 12, 0.45);
  --bar-bg: #ece8db;
  --bar-border: rgba(0,0,0,0.08);
}

* { box-sizing: border-box; }

/* Ensure [hidden] always hides — class-based display rules (flex/grid/etc.)
   would otherwise override the user-agent default for [hidden]. */
[hidden] { display: none !important; }

html, body {
  margin: 0;
  padding: 0;
  min-height: 100%;
  background:
    radial-gradient(1200px 700px at 80% -200px, var(--shell-tint-1), transparent 60%),
    radial-gradient(900px 500px at -10% 110%, var(--shell-tint-2), transparent 60%),
    var(--bg);
  color: var(--fg);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
  -webkit-tap-highlight-color: transparent;
  overscroll-behavior: none;
  transition: background-color 240ms ease, color 240ms ease;
}

button {
  font-family: inherit;
  color: inherit;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 0;
}

#app {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px 32px;
}

/* ---------- Header ---------- */
.app-header {
  width: 100%;
  background: var(--bar-bg);
  border-bottom: 1px solid var(--bar-border);
  margin-bottom: 16px;
}
.app-header-inner {
  display: grid;
  grid-template-columns: 44px 1fr 44px auto 44px;
  align-items: center;
  gap: 4px;
  padding: 10px 20px;
  max-width: 1000px;
  width: 100%;
  margin: 0 auto;
}
.app-header.is-hidden { display: none; }
.app-header h1 {
  margin: 0;
  font-size: 18px;
  font-weight: 600;
  letter-spacing: 0.2px;
  text-align: center;
  color: var(--fg);
}
.header-brand {
  justify-self: center;
  display: inline-flex;
  align-items: center;
  gap: 0;
  padding: 4px 10px;
  background: transparent;
  border: 0;
  border-radius: 12px;
  cursor: pointer;
  color: var(--fg);
  transition: background 140ms ease, transform 140ms ease;
}
.header-brand:hover { background: var(--bg-elev); }
.header-brand:active { transform: scale(0.97); }
.header-brand-mark {
  width: 28px;
  height: 28px;
  display: block;
  flex: 0 0 auto;
}
.header-brand-f {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  font-size: 34px;
  font-weight: 700;
  fill: #1a1408;
  letter-spacing: -0.5px;
}
.header-brand-name {
  font-size: 20px;
  font-weight: 700;
  letter-spacing: -0.3px;
  color: var(--fg);
  line-height: 1;
  margin-left: 2px;
}
/* Same gold-script wordmark as the home view, scaled down for the
   header. The gold gradient gets washed out at small sizes against
   the header background, so we collapse it to a solid silhouette
   that contrasts cleanly with whichever theme is active:
     - light theme → black
     - dark theme  → white  (brightness(0) inverts to white)
   Height-driven so the width follows the SVG's own ~2.87:1 aspect. */
.header-brand-logo {
  display: block;
  height: 32px;
  width: auto;
  flex: 0 0 auto;
  filter: brightness(0);
}
[data-theme="dark"] .header-brand-logo {
  filter: brightness(0) invert(1);
}
body[data-view="home"] .header-brand { visibility: hidden; }
@media (max-width: 480px) {
  .header-brand-name { display: none; }
  .header-brand-logo { height: 26px; }
}
.nav-btn {
  width: 44px;
  height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--fg-dim);
  border-radius: 12px;
  transition: background 140ms ease, color 140ms ease, transform 140ms ease;
}
.nav-btn:hover { background: var(--bg-elev); color: var(--fg); }
.nav-btn:active { transform: scale(0.96); }
.nav-btn.active { color: var(--accent); }

/* Theme toggle: show moon in dark, sun in light */
.theme-toggle .theme-icon-sun { display: none; }
.theme-toggle .theme-icon-moon { display: block; }
[data-theme="light"] .theme-toggle .theme-icon-sun { display: block; }
[data-theme="light"] .theme-toggle .theme-icon-moon { display: none; }

/* ---------- Mini metronome (header) ----------
   A small play/pause + tempo control that lives in the header. The full
   metronome page hides it (its own controls are right there). When the
   metronome is playing, each downbeat briefly outlines the control. */
.mini-metronome {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 2px;
  height: 36px;
  padding: 2px;
  border-radius: 12px;
  background: var(--bg-elev);
  transition: box-shadow 140ms ease, transform 60ms ease;
}
body[data-view="metronome"] .mini-metronome { display: none; }
.mini-metronome.is-playing { box-shadow: 0 0 0 1px var(--accent-soft, rgba(255, 178, 60, 0.35)); }
.mini-metronome-play,
.mini-metronome-tempo {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 0;
  background: transparent;
  color: var(--fg);
  border-radius: 10px;
  cursor: pointer;
  transition: background 140ms ease, color 140ms ease, transform 60ms ease;
  font-family: inherit;
}
.mini-metronome-play {
  width: 32px;
  height: 32px;
}
.mini-metronome-play:hover { background: var(--bg-elev-2); }
.mini-metronome-play:active { transform: scale(0.94); }
.mini-metronome.is-playing .mini-metronome-play { color: var(--accent); }
.mini-metronome-tempo {
  height: 32px;
  padding: 0 10px 0 6px;
  font-size: 14px;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.2px;
}
.mini-metronome-tempo:hover { background: var(--bg-elev-2); color: var(--accent); }
.mini-metronome-tempo:active { transform: scale(0.97); }

/* Beat pulse — adds a brief outline on the downbeat (and stronger on accent) */
@keyframes mini-metronome-pulse {
  0%   { box-shadow: 0 0 0 1px var(--accent); }
  100% { box-shadow: 0 0 0 1px transparent; }
}
.mini-metronome.beat-pulse { animation: mini-metronome-pulse 200ms ease-out; }
.mini-metronome.beat-pulse-accent { animation-duration: 260ms; }

@media (max-width: 480px) {
  .mini-metronome-tempo { padding: 0 8px 0 4px; font-size: 13px; }
}

#view-root {
  flex: 1;
  display: flex;
  flex-direction: column;
  width: 100%;
  max-width: 1000px;
  margin: 0 auto;
}

/* ---------- Home ---------- */
.home { padding: 8px 4px 0; width: 100%; }

/* Brand block on home */
.brand {
  display: flex;
  flex-direction: row;
  align-items: center;
  justify-content: center;
  gap: 0;
  /* Top is small because .app-header already adds 16px of margin-bottom
     above this block — the previous 18px doubled up and the logo was
     visibly off-centre vertically. */
  padding: 4px 0 24px;
}
.brand-mark {
  width: 52px;
  height: 52px;
  display: block;
  flex: 0 0 auto;
  margin-right: 4px;
  transform: translateY(2px);
  filter: drop-shadow(0 6px 18px rgba(255,184,74,0.32));
}
.brand-mark-f {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  font-size: 34px;
  font-weight: 700;
  fill: #1a1408;
  letter-spacing: -0.5px;
}
.brand-name {
  margin: 0;
  font-size: 40px;
  font-weight: 700;
  letter-spacing: -0.8px;
  color: var(--fg);
  line-height: 1;
}
/* Gold-script wordmark used on the home view. The asset carries its
   own glow filter; no drop-shadow needed here. Width-driven so the
   height follows the SVG's own aspect (≈ 816×284). */
.brand-logo {
  width: 240px;
  height: auto;
  max-width: 80%;
  display: block;
}
@media (min-width: 640px) {
  .brand-mark { width: 60px; height: 60px; }
  .brand-name { font-size: 46px; }
  .brand-logo { width: 300px; }
}
.section-title {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 1.2px;
  text-transform: uppercase;
  color: var(--fg-mute);
  margin: 10px 4px 16px;
}
.tile-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
}
@media (min-width: 640px) { .tile-grid { grid-template-columns: repeat(3, 1fr); gap: 16px; } }
@media (min-width: 900px) { .tile-grid { grid-template-columns: repeat(4, 1fr); gap: 18px; } }

.tile {
  position: relative;
  aspect-ratio: 1 / 1;
  background:
    linear-gradient(160deg, var(--inner-glow), transparent 55%),
    var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
  color: var(--fg);
  box-shadow: var(--shadow-sm);
  transition: transform 140ms ease, background 140ms ease, border-color 140ms ease, box-shadow 140ms ease;
}
.tile:hover:not(:disabled) {
  background:
    linear-gradient(160deg, var(--inner-glow-strong), transparent 55%),
    var(--bg-elev-2);
  border-color: rgba(255,184,74,0.35);
  box-shadow: var(--shadow-md);
}
.tile:active:not(:disabled) { transform: scale(0.98); }
.tile:disabled { opacity: 0.55; cursor: not-allowed; }
.tile-icon {
  font-size: 42px;
  line-height: 1;
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  filter: drop-shadow(0 2px 6px rgba(255,184,74,0.25));
}
/* SVG-based tile icons skip the background-clip text trick — they
   bring their own gradient via a <linearGradient> in defs. */
.tile-icon.tile-icon-svg {
  background: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}
.tile-icon-svg svg { display: block; }
.tile-label {
  font-size: 14px;
  font-weight: 500;
  color: var(--fg);
}
.tile-soon {
  position: absolute;
  top: 10px;
  right: 12px;
  font-size: 10px;
  letter-spacing: 0.6px;
  text-transform: uppercase;
  color: var(--fg-mute);
  background: var(--bg-elev-3);
  padding: 3px 7px;
  border-radius: 6px;
}

/* ---------- Metronome ---------- */
.metronome {
  display: grid;
  grid-template-columns: 84px minmax(0, 1fr);
  align-items: start;
  gap: 18px;
  width: 100%;
  max-width: 640px;
  margin: 0 auto;
  padding-top: 8px;
}
.metronome-main {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  min-width: 0;
}
.met-sidebar {
  display: flex;
  flex-direction: column;
  gap: 8px;
  min-width: 0;
}
.met-sidebar-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 4px;
  padding: 0 2px;
}
.met-sidebar-title {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.6px;
  text-transform: uppercase;
  color: var(--fg-mute);
}
.met-add-preset {
  width: 24px;
  height: 24px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--accent-gradient);
  color: #1a1408;
  border: none;
  border-radius: 6px;
  font-size: 16px;
  font-weight: 700;
  line-height: 1;
  cursor: pointer;
  box-shadow: 0 2px 8px rgba(255, 184, 74, 0.28);
  transition: transform 100ms ease, filter 140ms ease;
}
.met-add-preset:hover { filter: brightness(1.05); }
.met-add-preset:active { transform: scale(0.95); }
.met-presets {
  list-style: none;
  margin: 0;
  padding: 2px 0;
  display: flex;
  flex-direction: column;
  gap: 4px;
  overflow-y: auto;
  max-height: calc(100vh - 200px);
  scrollbar-width: thin;
}
.met-preset {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: stretch;
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
  transition: background 140ms ease, border-color 140ms ease, transform 100ms ease;
}
.met-preset.is-active {
  border-color: rgba(255, 210, 117, 0.65);
  background: rgba(255, 184, 74, 0.14);
}
.met-preset.is-active::before {
  content: "";
  position: absolute;
  left: 0;
  top: 6px;
  bottom: 6px;
  width: 3px;
  border-radius: 2px;
  background: var(--accent);
}
.met-preset.flash {
  animation: met-preset-flash 500ms ease-out;
}
@keyframes met-preset-flash {
  0%   { background: rgba(255, 184, 74, 0.4); }
  100% { background: var(--bg-elev); }
}
.met-preset-btn {
  flex: 1 1 auto;
  background: transparent;
  border: none;
  color: var(--fg);
  font: inherit;
  font-size: 14px;
  font-weight: 600;
  padding: 8px 4px 8px 10px;
  text-align: left;
  cursor: pointer;
  font-variant-numeric: tabular-nums;
  outline: none;
}
.met-preset:hover .met-preset-btn { color: var(--fg); }
.met-preset.is-active .met-preset-btn { color: var(--fg); }
.met-preset-remove {
  width: 24px;
  height: 28px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: none;
  color: var(--fg-mute);
  cursor: pointer;
  opacity: 0;
  transition: opacity 140ms ease, color 140ms ease, background 140ms ease;
}
.met-preset:hover .met-preset-remove,
.met-preset:focus-within .met-preset-remove {
  opacity: 1;
}
.met-preset-remove:hover {
  background: rgba(255, 90, 90, 0.18);
  color: #ff8080;
}

@media (max-width: 540px) {
  .metronome {
    grid-template-columns: 66px minmax(0, 1fr);
    gap: 10px;
  }
  .met-add-preset { width: 22px; height: 22px; font-size: 14px; }
  .met-preset-btn { font-size: 13px; padding: 6px 2px 6px 8px; }
  /* Always show the × on touch — there's no hover. */
  .met-preset-remove { opacity: 0.7; }
}

/* Subdivision selector */
.subdivisions {
  display: flex;
  gap: 6px;
  width: 100%;
  padding: 0 2px;
}
.sub-btn {
  flex: 1;
  min-width: 0;
  height: 44px;
  overflow: hidden;
  background:
    linear-gradient(160deg, var(--inner-glow), transparent 55%),
    var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--fg-dim);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: background 140ms ease, color 140ms ease, border-color 140ms ease, transform 140ms ease;
}
.sub-btn:hover { background: var(--bg-elev-2); color: var(--fg); }
.sub-btn:active { transform: scale(0.97); }
.sub-btn.active {
  background:
    linear-gradient(160deg, rgba(255,210,117,0.12), rgba(255,184,74,0.05) 60%),
    var(--bg-elev-2);
  color: var(--accent);
  border-color: rgba(255,210,117,0.45);
  box-shadow: inset 0 0 0 1px rgba(255,184,74,0.15), 0 4px 18px rgba(255,184,74,0.12);
}
.sub-btn svg { display: block; height: 30px; width: auto; max-width: 100%; }

@media (max-width: 540px) {
  .subdivisions { gap: 4px; }
  .sub-btn { height: 40px; }
  .sub-btn svg { height: 24px; }
}

/* Tempo row */
.tempo-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: 4px 14px;
  max-width: 480px;
}
.tempo-step {
  width: 52px;
  height: 52px;
  font-size: 36px;
  line-height: 1;
  color: var(--fg-dim);
  font-weight: 300;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: background 140ms ease, color 140ms ease, transform 140ms ease;
}
.tempo-step:hover { background: var(--bg-elev); color: var(--fg); }
.tempo-step:active { background: var(--tap-highlight); color: var(--accent); transform: scale(0.95); }
.tempo-display { text-align: center; }
.tempo-display #bpm-value {
  font-size: 48px;
  font-weight: 500;
  letter-spacing: 0.5px;
  font-variant-numeric: tabular-nums;
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* Dial + play */
.dial-wrap {
  position: relative;
  width: 100%;
  max-width: 420px;
  display: flex;
  justify-content: center;
}
#dial {
  width: 100%;
  height: auto;
  display: block;
  touch-action: none;
  pointer-events: none;
}
#dial-track,
#dial-hit,
#dial-handle {
  pointer-events: auto;
}
#dial-track {
  fill: none;
  stroke: var(--track);
  stroke-width: 6;
  stroke-linecap: round;
}
#dial-hit {
  fill: none;
  stroke: transparent;
  stroke-width: 32;
  stroke-linecap: round;
  cursor: pointer;
}
#dial-progress {
  fill: none;
  stroke: url(#dialGradient);
  stroke-width: 7;
  stroke-linecap: round;
  pointer-events: none;
  filter: drop-shadow(0 0 6px rgba(255,184,74,0.35));
}
#dial-handle {
  fill: url(#dialGradient);
  stroke: var(--bg);
  stroke-width: 2;
  cursor: grab;
  transition: r 140ms ease;
  filter: drop-shadow(0 2px 8px rgba(255,184,74,0.55));
}
#dial-handle:active { cursor: grabbing; r: 14; }
.dial-label {
  fill: var(--fg-dim);
  font-size: 12px;
  font-family: inherit;
  font-variant-numeric: tabular-nums;
}

.play-btn {
  position: absolute;
  left: 50%;
  top: 62%;
  z-index: 2;
  transform: translate(-50%, -50%);
  width: 96px;
  height: 96px;
  border-radius: 50%;
  background: var(--accent-gradient);
  color: #1a1408;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  box-shadow:
    0 12px 28px rgba(255,184,74,0.32),
    0 2px 6px rgba(0,0,0,0.35),
    inset 0 -3px 0 rgba(0,0,0,0.15),
    inset 0 2px 0 rgba(255,255,255,0.35);
  transition: transform 140ms ease, filter 140ms ease;
}
.play-btn:hover { filter: brightness(1.07); }
.play-btn:active { transform: translate(-50%, -50%) scale(0.96); }

/* Beat bars — one per beat, 3 volume levels */
.beat-bars {
  display: flex;
  gap: 10px;
  width: 100%;
  justify-content: center;
  align-items: flex-end;
  flex-wrap: wrap;
  padding: 2px 0;
}
.beat {
  position: relative;
  min-width: 42px;
  flex: 0 1 56px;
  height: 66px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-end;
  gap: 4px;
  padding: 8px 6px;
  background:
    linear-gradient(160deg, var(--inner-glow), transparent 55%),
    var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: 12px;
  transition: transform 100ms ease, background 140ms ease, border-color 140ms ease, box-shadow 140ms ease;
}
.beat:hover { background: var(--bg-elev-2); }
.beat:active { transform: scale(0.96); }
.beat .seg {
  display: block;
  width: 60%;
  border-radius: 3px;
  background: var(--fg-mute);
  opacity: 0.25;
  transition: background 140ms ease, opacity 140ms ease;
}
.beat .s1 { height: 10px; }
.beat .s2 { height: 14px; }
.beat .s3 { height: 18px; }
/* Level 1 — only bottom seg lit (soft) */
.beat[data-level="1"] .s1 { opacity: 1; background: var(--accent-soft); }
/* Level 2 — bottom + middle lit (medium) */
.beat[data-level="2"] .s1,
.beat[data-level="2"] .s2 { opacity: 1; background: var(--accent); }
/* Level 3 — all three lit (accent / downbeat) */
.beat[data-level="3"] .s1,
.beat[data-level="3"] .s2,
.beat[data-level="3"] .s3 { opacity: 1; background: var(--accent-strong); }
.beat[data-level="3"] {
  box-shadow: inset 0 0 0 1px rgba(255,210,117,0.25);
}
/* Level 0 — muted. No segments lit; whole beat dimmed so it visibly
   reads as "off". Playhead still flashes through normally via the
   .playing rule below (which restores full opacity). */
.beat[data-level="0"]:not(.playing) {
  opacity: 0.45;
}

.beat.playing {
  border-color: rgba(255,210,117,0.6);
  background:
    linear-gradient(160deg, rgba(255,210,117,0.14), rgba(255,184,74,0.04) 60%),
    var(--bg-elev-2);
  box-shadow: 0 0 16px rgba(255,184,74,0.35), inset 0 0 0 1px rgba(255,210,117,0.4);
}
.beat.playing .seg { filter: brightness(1.15); }

/* Bottom row */
.bottom-row {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  width: 100%;
  padding: 4px 10px 0;
}
.bottom-btn {
  color: var(--fg-dim);
  font-size: 15px;
  font-weight: 500;
  padding: 10px 8px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  border-radius: 10px;
  transition: color 140ms ease, background 140ms ease;
}
.bottom-btn:hover { color: var(--fg); background: var(--bg-elev); }
#ts-btn { justify-self: start; }
#tap-btn { justify-self: end; }
.ts-note { color: var(--fg-dim); font-size: 17px; }

/* ---------- TS picker popover ---------- */
.ts-popover {
  position: fixed;
  inset: 0;
  background: var(--scrim);
  display: flex;
  align-items: flex-end;
  justify-content: center;
  z-index: 10;
}
.ts-sheet {
  width: 100%;
  max-width: 520px;
  background: var(--bg-elev);
  border-top-left-radius: 22px;
  border-top-right-radius: 22px;
  padding: 20px 20px 30px;
  box-shadow: var(--shadow-sheet);
}
.ts-sheet h3 {
  margin: 0 0 14px;
  font-size: 12px;
  letter-spacing: 1.2px;
  text-transform: uppercase;
  color: var(--fg-mute);
  font-weight: 700;
}
.ts-list { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; }
.ts-option {
  background: var(--bg-elev-2);
  border-radius: 12px;
  padding: 14px 0;
  font-size: 17px;
  font-weight: 500;
  color: var(--fg);
  transition: background 140ms ease, color 140ms ease, transform 140ms ease;
}
.ts-option:hover { background: var(--bg-elev-3); }
.ts-option:active { transform: scale(0.97); }
.ts-option.active {
  background: var(--accent-gradient);
  color: #1a1408;
}

/* ---------- Preset tempos strip ---------- */
.preset-strip {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  width: 100%;
  padding: 4px 2px 2px;
  scrollbar-width: none;
  flex-wrap: nowrap;
}
.preset-strip::-webkit-scrollbar { display: none; }
@media (min-width: 640px) {
  .preset-strip { flex-wrap: wrap; justify-content: center; overflow: visible; }
}
.preset-chip {
  flex: 0 0 auto;
  padding: 8px 14px;
  border-radius: 999px;
  background: var(--bg-elev);
  color: var(--fg-dim);
  font-size: 13px;
  font-weight: 500;
  font-variant-numeric: tabular-nums;
  border: 1px solid var(--border);
  transition: background 140ms ease, color 140ms ease, border-color 140ms ease, transform 140ms ease;
}
.preset-chip:hover { background: var(--bg-elev-2); color: var(--fg); }
.preset-chip:active { transform: scale(0.96); }
.preset-chip.active {
  background: var(--accent-gradient);
  color: #1a1408;
  border-color: transparent;
  box-shadow: 0 4px 14px rgba(255,184,74,0.3);
}

/* ---------- Journal ---------- */
.journal {
  display: grid;
  grid-template-columns: 260px minmax(0, 1fr);
  gap: 16px;
  width: 100%;
  min-height: calc(100vh - 140px);
  align-items: stretch;
}

/* Sidebar */
.journal-sidebar {
  display: flex;
  flex-direction: column;
  gap: 8px;
  min-width: 0;
}
.journal-new-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 40px;
  padding: 0 14px;
  border-radius: 10px;
  background: var(--accent-gradient);
  color: #1a1408;
  font-weight: 600;
  font-size: 14px;
  letter-spacing: 0.2px;
  box-shadow: 0 4px 14px rgba(255,184,74,0.28);
  transition: transform 140ms ease, filter 140ms ease;
}
.journal-new-btn:hover { filter: brightness(1.05); }
.journal-new-btn:active { transform: scale(0.98); }
.journal-new-icon {
  font-size: 18px;
  font-weight: 700;
  line-height: 1;
}
.journal-page-list {
  list-style: none;
  margin: 0;
  padding: 4px 0;
  display: flex;
  flex-direction: column;
  gap: 4px;
  overflow-y: auto;
  max-height: calc(100vh - 220px);
  scrollbar-width: thin;
}
.journal-page-empty {
  list-style: none;
  padding: 16px 12px;
  color: var(--fg-mute);
  font-size: 13px;
  text-align: center;
  background: var(--bg-elev);
  border: 1px dashed var(--border-dashed);
  border-radius: 10px;
}
.journal-page-item {
  position: relative;
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 10px 12px 10px 16px;
  border-radius: 10px;
  background: var(--bg-elev);
  border: 1px solid var(--border);
  cursor: pointer;
  transition: background 140ms ease, border-color 140ms ease, transform 100ms ease;
  outline: none;
  min-width: 0;
}
.journal-page-item:hover { background: var(--bg-elev-2); }
.journal-page-item:active { transform: scale(0.99); }
.journal-page-item:focus-visible {
  border-color: rgba(255,184,74,0.55);
  box-shadow: 0 0 0 2px rgba(255,184,74,0.18);
}
.journal-page-item.is-active {
  background: #5a606b;
  border-color: rgba(255,210,117,0.55);
  box-shadow: inset 0 0 0 1px rgba(255,184,74,0.2);
}
[data-theme="light"] .journal-page-item.is-active {
  background: #ffffff;
}
/* Orange indicator bar on the left of the active item */
.journal-page-item.is-active::before {
  content: "";
  position: absolute;
  left: 5px;
  top: 10px;
  bottom: 10px;
  width: 3px;
  border-radius: 2px;
  background: var(--accent);
}
.journal-page-title {
  font-size: 14px;
  font-weight: 600;
  color: var(--fg);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.journal-page-item.is-active .journal-page-title {
  color: var(--fg);
  font-weight: 700;
}
.journal-page-date {
  font-size: 11px;
  color: var(--fg-mute);
  font-variant-numeric: tabular-nums;
}

/* Editor */
.journal-editor {
  display: flex;
  flex-direction: column;
  min-width: 0;
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: 14px;
  overflow: hidden;
}
.journal-empty[hidden],
.journal-pane[hidden] { display: none; }
.journal-empty {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 14px;
  text-align: center;
  color: var(--fg-mute);
  font-size: 14px;
  line-height: 1.6;
  padding: 40px 20px;
}
.journal-empty-icon {
  width: 96px;
  height: 96px;
  color: var(--fg-mute);
  opacity: 0.6;
}
.journal-empty-link {
  background: transparent;
  border: none;
  padding: 4px 6px;
  font: inherit;
  font-size: 14px;
  font-weight: 600;
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 3px;
  cursor: pointer;
  border-radius: 6px;
  transition: color 140ms ease, background 140ms ease;
}
.journal-empty-link:hover { color: var(--accent-strong); background: rgba(255,184,74,0.08); }
.journal-empty-link:active { transform: scale(0.98); }
.journal-empty-link:focus-visible {
  outline: 2px solid rgba(255,184,74,0.6);
  outline-offset: 2px;
}
.journal-pane {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-height: 0;
}
.journal-header {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 14px;
  border-bottom: 1px solid var(--border);
  background: var(--bg-elev);
}
.journal-back {
  display: none;
  width: 36px;
  height: 36px;
  align-items: center;
  justify-content: center;
  border-radius: 8px;
  color: var(--fg-dim);
  transition: background 140ms ease, color 140ms ease;
}
.journal-back:hover { background: var(--bg-elev-2); color: var(--fg); }
.journal-title {
  flex: 1 1 auto;
  min-width: 0;
  width: auto;
  background: transparent;
  border: none;
  outline: none;
  font: inherit;
  color: var(--fg);
  font-size: 18px;
  font-weight: 600;
  letter-spacing: -0.2px;
  padding: 6px 4px;
  border-radius: 6px;
  min-width: 0;
}
.journal-title::placeholder { color: var(--fg-mute); }
.journal-title:focus { background: var(--bg-elev-2); }
.journal-date {
  width: 140px;
  flex: 0 0 auto;
  margin-left: auto;
  background: var(--bg-elev-2);
  border: 1px solid var(--border);
  outline: none;
  color: var(--fg-dim);
  font: inherit;
  font-size: 12px;
  padding: 6px 6px;
  border-radius: 8px;
  font-variant-numeric: tabular-nums;
  color-scheme: light dark;
}
.journal-date:focus { border-color: rgba(255,184,74,0.45); color: var(--fg); }
.journal-delete {
  width: 36px;
  height: 36px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 8px;
  color: var(--fg-mute);
  transition: background 140ms ease, color 140ms ease;
}
.journal-delete:hover { background: rgba(255,90,90,0.12); color: #ff8080; }

/* Toolbar */
.journal-toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  padding: 8px 10px;
  border-bottom: 1px solid var(--border);
  background: var(--section-bg);
}
.journal-toolbar button {
  min-width: 34px;
  height: 32px;
  padding: 0 8px;
  border-radius: 8px;
  color: var(--fg-dim);
  font-size: 13px;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: background 140ms ease, color 140ms ease, transform 100ms ease;
}
.journal-toolbar button:hover { background: var(--bg-elev-2); color: var(--fg); }
.journal-toolbar button:active { transform: scale(0.96); }
.journal-toolbar button.is-active {
  background: var(--accent-gradient-soft);
  color: var(--accent-strong);
  box-shadow: inset 0 0 0 1px rgba(255,210,117,0.35);
}
.journal-toolbar .t-h { font-size: 12px; letter-spacing: 0.4px; }
.journal-toolbar-sep {
  width: 1px;
  height: 20px;
  background: var(--border);
  margin: 0 4px;
  align-self: center;
}

/* Editable body */
.journal-body {
  flex: 1;
  overflow-y: auto;
  padding: 18px 22px 32px;
  outline: none;
  color: var(--fg);
  font-size: 15px;
  line-height: 1.65;
  background: var(--bg-elev);
  min-height: 280px;
  caret-color: var(--accent);
}
.journal-body:empty::before {
  content: attr(data-placeholder);
  color: var(--fg-mute);
  pointer-events: none;
}
.journal-body:focus { outline: none; }
.journal-body h1 { font-size: 26px; margin: 18px 0 8px; line-height: 1.25; font-weight: 700; }
.journal-body h2 { font-size: 21px; margin: 16px 0 6px; line-height: 1.3; font-weight: 700; }
.journal-body h3 { font-size: 17px; margin: 14px 0 4px; line-height: 1.35; font-weight: 600; }
.journal-body p { margin: 6px 0; }
.journal-body ul, .journal-body ol { margin: 6px 0; padding-left: 24px; }
.journal-body li { margin: 2px 0; }
.journal-body b, .journal-body strong { font-weight: 700; }
.journal-body i, .journal-body em { font-style: italic; }
.journal-body a { color: var(--accent); text-decoration: underline; }

/* ---------- Login screen ---------- */
.login {
  min-height: calc(100vh - 40px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 40px 20px;
}
.login-card {
  width: 100%;
  max-width: 420px;
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 36px 28px;
  box-shadow: var(--shadow-md);
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}
.login-brand {
  margin-bottom: 18px;
}
.login-title {
  margin: 0 0 6px;
  font-size: 20px;
  font-weight: 600;
  color: var(--fg);
}
.login-sub {
  margin: 0 0 20px;
  color: var(--fg-dim);
  font-size: 14px;
  line-height: 1.4;
}
.login-form {
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.login-form input[type="email"] {
  width: 100%;
  padding: 12px 14px;
  font: inherit;
  font-size: 15px;
  background: var(--bg-elev-2);
  border: 1px solid var(--border);
  border-radius: 10px;
  color: var(--fg);
  outline: none;
  transition: border-color 140ms ease, background 140ms ease;
}
.login-form input[type="email"]:focus {
  border-color: rgba(255,184,74,0.55);
  background: var(--bg-elev-3);
}
.login-form input[type="email"]::placeholder { color: var(--fg-mute); }
.login-form button {
  width: 100%;
  padding: 12px 14px;
  font: inherit;
  font-size: 15px;
  font-weight: 600;
  background: var(--accent-gradient);
  color: #1a1408;
  border-radius: 10px;
  cursor: pointer;
  transition: transform 100ms ease, opacity 140ms ease;
}
.login-form button:hover { opacity: 0.95; }
.login-form button:active { transform: scale(0.99); }
.login-form button:disabled { opacity: 0.6; cursor: default; }
.login-form.is-sent input[type="email"],
.login-form.is-sent button { display: none; }
.login-message {
  margin: 16px 0 0;
  padding: 12px 14px;
  background: var(--section-bg);
  border: 1px solid var(--border);
  border-radius: 10px;
  color: var(--fg);
  font-size: 14px;
  line-height: 1.45;
  width: 100%;
}
.login-message.is-error {
  background: rgba(255,90,90,0.10);
  border-color: rgba(255,90,90,0.35);
  color: #ffb0b0;
}
[data-theme="light"] .login-message.is-error { color: #b03030; }

/* ---------- Avatar (header + settings) ---------- */
.avatar-circle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: #444;
  color: #fff;
  font-weight: 700;
  font-size: 14px;
  letter-spacing: 0.2px;
  user-select: none;
  overflow: hidden;
  border: 1px solid rgba(255,255,255,0.12);
}
.avatar-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.nav-avatar {
  padding: 0;
}
.nav-avatar:hover { background: var(--bg-elev); }
.nav-avatar .avatar-circle {
  width: 38px;
  height: 38px;
  font-size: 15px;
}
.nav-avatar.active .avatar-circle {
  box-shadow: 0 0 0 2px var(--accent);
}

/* ---------- Settings page ---------- */
.settings {
  display: flex;
  justify-content: center;
  padding: 20px 16px 40px;
}
.settings-card {
  position: relative;
  width: 100%;
  max-width: 560px;
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 28px 24px;
  box-shadow: var(--shadow-md);
}
.settings-close {
  position: absolute;
  top: 12px;
  right: 12px;
  width: 36px;
  height: 36px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 0;
  background: transparent;
  color: var(--fg-dim);
  border-radius: 10px;
  cursor: pointer;
  transition: background 140ms ease, color 140ms ease;
}
.settings-close:hover { background: var(--bg-elev-2); color: var(--fg); }
.settings-close:active { transform: scale(0.96); }
.settings-header {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 22px;
}
.settings-avatar {
  width: 64px;
  height: 64px;
  font-size: 26px;
  flex: 0 0 auto;
}
.settings-headings { display: flex; flex-direction: column; gap: 2px; min-width: 0; }
.settings-title {
  margin: 0;
  font-size: 20px;
  font-weight: 600;
  color: var(--fg);
}
.settings-sub {
  margin: 0;
  color: var(--fg-dim);
  font-size: 14px;
  line-height: 1.4;
}
.settings-form {
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.settings-field {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.settings-label {
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.6px;
  color: var(--fg-dim);
}
.settings-form input {
  width: 100%;
  padding: 11px 13px;
  font: inherit;
  font-size: 15px;
  background: var(--bg-elev-2);
  border: 1px solid var(--border);
  border-radius: 10px;
  color: var(--fg);
  outline: none;
  transition: border-color 140ms ease, background 140ms ease;
}
.settings-form input:focus {
  border-color: rgba(255,184,74,0.55);
  background: var(--bg-elev-3);
}
.settings-form input[readonly] {
  color: var(--fg-dim);
  cursor: default;
}
.settings-form input::placeholder { color: var(--fg-mute); }
.settings-hint {
  font-size: 12px;
  color: var(--fg-mute);
  line-height: 1.4;
}
.avatar-upload-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
}
.avatar-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 14px;
  font: inherit;
  font-size: 14px;
  font-weight: 600;
  background: var(--bg-elev-2);
  color: var(--fg);
  border: 1px solid var(--border);
  border-radius: 10px;
  cursor: pointer;
  transition: background 140ms ease, border-color 140ms ease, color 140ms ease;
}
.avatar-btn:hover { background: var(--bg-elev-3); border-color: rgba(255,184,74,0.45); }
.avatar-btn:disabled { opacity: 0.6; cursor: default; }
.avatar-btn-ghost {
  background: transparent;
  color: var(--fg-dim);
}
.avatar-btn-ghost:hover {
  background: rgba(255,90,90,0.10);
  border-color: rgba(255,90,90,0.45);
  color: #ff8080;
}
[data-theme="light"] .avatar-btn-ghost:hover { color: #b03030; }

.settings-status {
  margin: 0;
  padding: 10px 12px;
  background: var(--section-bg);
  border: 1px solid var(--border);
  border-radius: 10px;
  color: var(--fg-dim);
  font-size: 13px;
}
.settings-status.is-error {
  background: rgba(255,90,90,0.10);
  border-color: rgba(255,90,90,0.35);
  color: #ffb0b0;
}
[data-theme="light"] .settings-status.is-error { color: #b03030; }
.settings-actions {
  display: flex;
  justify-content: flex-end;
  margin-top: 22px;
  padding-top: 18px;
  border-top: 1px solid var(--border);
}
.settings-signout {
  padding: 10px 18px;
  font: inherit;
  font-size: 14px;
  font-weight: 600;
  background: transparent;
  color: var(--fg);
  border: 1px solid var(--border);
  border-radius: 10px;
  cursor: pointer;
  transition: background 140ms ease, color 140ms ease, border-color 140ms ease;
}
.settings-signout:hover {
  background: rgba(255,90,90,0.10);
  border-color: rgba(255,90,90,0.45);
  color: #ff8080;
}
[data-theme="light"] .settings-signout:hover { color: #b03030; }
.settings-signout:disabled { opacity: 0.6; cursor: default; }

/* Mobile: single-pane (sidebar OR editor at a time) */
@media (max-width: 720px) {
  .journal {
    grid-template-columns: 1fr;
    min-height: calc(100vh - 120px);
  }
  .journal-page-list { max-height: none; }
  .journal[data-mode="editor"] .journal-sidebar { display: none; }
  .journal[data-mode="list"] .journal-editor { display: none; }
  .journal-back { display: inline-flex; }
}

/* ---------- Fretboard view (Scales / Triads / Chords) ---------- */
.fbview,
.double-stops {
  width: 100%;
  max-width: 960px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding-top: 8px;
}

/* Section wrappers visually separate Key from Quality */
.fb-section {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 10px 12px;
  background: var(--section-bg);
  border: 1px solid var(--border);
  border-radius: 12px;
}
/* Collapsible-box styling for <details class="fb-section">. The summary
   row acts as the always-visible header; clicking it opens / closes the
   box so the user can reclaim vertical space for the fretboard. */
.fb-section > summary {
  list-style: none;
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  user-select: none;
  /* Remove the default focus outline; tab-focus still works via aria. */
  outline: none;
}
.fb-section > summary::-webkit-details-marker {
  display: none;
}
.fb-section > summary::after {
  content: '▾';
  margin-left: auto;
  font-size: 24px;
  line-height: 1;
  color: var(--fg-mute);
  transform-origin: 50% 45%;
  transition: transform 200ms ease, color 200ms ease;
}
.fb-section > summary:hover::after { color: var(--fg); }
.fb-section:not([open]) > summary::after {
  transform: rotate(-90deg);
}
/* When collapsed remove the extra header-to-body gap so the summary
   reads as a compact pill. */
.fb-section:not([open]) {
  padding-top: 8px;
  padding-bottom: 8px;
  gap: 0;
}
.fb-section-label {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 1.2px;
  text-transform: uppercase;
  color: var(--fg-mute);
}
.fb-section-quality .quality-strip { width: 100%; }

/* CAGED controls now live in the title bar, after the subtitle / hint. */
.caged-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin-left: auto;  /* push to the right side of the titlebar */
}

/* Toggle switch — looks like an iOS-style on/off slider. The real
   <input type="checkbox"> sits visually-hidden behind the track so
   keyboard / screen-reader semantics stay correct. */
.caged-toggle {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  user-select: none;
}
.caged-toggle-input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}
.caged-toggle-track {
  position: relative;
  display: inline-block;
  width: 34px;
  height: 18px;
  background: var(--bg-elev-3);
  border: 1px solid var(--border);
  border-radius: 999px;
  transition: background 200ms ease, border-color 200ms ease;
}
.caged-toggle-thumb {
  position: absolute;
  top: 1px;
  left: 1px;
  width: 14px;
  height: 14px;
  background: #fff;
  border-radius: 50%;
  box-shadow: 0 1px 3px rgba(0,0,0,0.4);
  transition: transform 200ms ease;
}
.caged-toggle-input:checked + .caged-toggle-track {
  background: var(--accent);
  border-color: transparent;
}
.caged-toggle-input:checked + .caged-toggle-track .caged-toggle-thumb {
  transform: translateX(16px);
}
.caged-toggle-input:focus-visible + .caged-toggle-track {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}
.caged-toggle-label {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--fg-mute);
  transition: color 200ms ease;
}
.caged-toggle-input:checked ~ .caged-toggle-label {
  color: var(--accent);
}

.caged-chips {
  display: flex;
  gap: 6px;
}
.caged-chip {
  width: 32px;
  height: 32px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font: inherit;
  font-size: 13px;
  font-weight: 700;
  background: var(--bg-elev);
  color: var(--fg-dim);
  border: 1px solid var(--border);
  border-radius: 50%;
  cursor: pointer;
  transition: background 140ms ease, color 140ms ease, border-color 140ms ease, transform 140ms ease;
}
.caged-chip:hover { background: var(--bg-elev-2); color: var(--fg); }
.caged-chip:active { transform: scale(0.95); }
.caged-chip.active {
  background: var(--accent-gradient);
  color: #1a1408;
  border-color: transparent;
  box-shadow: 0 4px 14px rgba(255,184,74,0.3);
}

.quality-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  padding: 2px 0 0;
  width: 100%;
}
.quality-chip {
  flex: 0 0 auto;
  padding: 8px 14px;
  border-radius: 999px;
  background: var(--bg-elev);
  color: var(--fg-dim);
  border: 1px solid var(--border);
  font-size: 14px;
  font-weight: 500;
  white-space: nowrap;
  transition: background 140ms ease, color 140ms ease, border-color 140ms ease, transform 140ms ease, box-shadow 140ms ease;
}
.quality-chip:hover { background: var(--bg-elev-2); color: var(--fg); }
.quality-chip:active { transform: scale(0.97); }
.quality-chip.active {
  background: var(--accent-gradient);
  color: #1a1408;
  border-color: transparent;
  box-shadow: 0 4px 14px rgba(255,184,74,0.3);
}

/* ============================================================
 * Diatonic Triads section (Triads view only).
 * ============================================================ */

.fb-section-diatonic > .fb-section-summary {
  display: flex;
  align-items: center;
  gap: 10px;
}
/* Toggle switch sitting inside the <summary>. Same shape as the
   metronome's .dyn-toggle so the apps feel consistent. */
.dia-toggle {
  position: relative;
  display: inline-block;
  width: 38px;
  height: 22px;
  flex: 0 0 auto;
}
.dia-toggle input {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  cursor: pointer;
  z-index: 1;
}
.dia-toggle-slider {
  position: absolute;
  inset: 0;
  background: var(--bg-elev-2);
  border: 1px solid var(--border);
  border-radius: 999px;
  transition: background 160ms ease, border-color 160ms ease;
}
.dia-toggle-slider::before {
  content: "";
  position: absolute;
  width: 16px;
  height: 16px;
  left: 2px;
  top: 2px;
  background: var(--fg-mute);
  border-radius: 50%;
  transition: transform 160ms ease, background 160ms ease;
}
.dia-toggle input:checked + .dia-toggle-slider {
  background: var(--accent-gradient);
  border-color: rgba(255, 184, 74, 0.7);
}
.dia-toggle input:checked + .dia-toggle-slider::before {
  transform: translateX(16px);
  background: #1a1408;
}
.dia-grid {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 8px 0 4px;
}
.dia-mode-strip,
.dia-degree-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}
.dia-hint {
  margin: 2px 2px 0;
  font-size: 12px;
  color: var(--fg-mute);
  line-height: 1.4;
}
.mode-chip,
.degree-chip {
  flex: 0 0 auto;
  padding: 6px 12px;
  border-radius: 999px;
  background: var(--bg-elev);
  color: var(--fg-dim);
  border: 1px solid var(--border);
  font: inherit;
  font-size: 13px;
  font-weight: 500;
  white-space: nowrap;
  cursor: pointer;
  transition: background 140ms ease, color 140ms ease, border-color 140ms ease, transform 100ms ease;
}
.mode-chip:hover,
.degree-chip:hover { background: var(--bg-elev-2); color: var(--fg); }
.mode-chip:active,
.degree-chip:active { transform: scale(0.97); }
.mode-chip.active,
.degree-chip.active {
  background: var(--accent-gradient);
  color: #1a1408;
  border-color: transparent;
  box-shadow: 0 4px 14px rgba(255, 184, 74, 0.3);
}
/* Subtle quality cue on degree chips — corner accent so the user can
   see at a glance which degree is which quality without reading the
   Roman numeral case. */
.degree-chip {
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.3px;
}
.degree-chip-diminished:not(.active) { border-color: rgba(120, 160, 220, 0.35); }
.degree-chip-augmented:not(.active)  { border-color: rgba(220, 130, 220, 0.35); }

.key-row {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}
.key-label {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 1.2px;
  text-transform: uppercase;
  color: var(--fg-mute);
}
.key-chips {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}
.key-chip {
  min-width: 42px;
  height: 38px;
  padding: 0 8px;
  border-radius: 10px;
  background: var(--bg-elev);
  color: var(--fg-dim);
  font-size: 13px;
  font-weight: 600;
  border: 1px solid var(--border);
  transition: background 140ms ease, color 140ms ease, border-color 140ms ease, transform 140ms ease, box-shadow 140ms ease;
  white-space: nowrap;
}
/* Dual-label chips (C♯/D♭ etc.) get slightly smaller text so they fit
   without dominating the row. */
.key-chip-dual {
  font-size: 12px;
  letter-spacing: -0.2px;
  padding: 0 6px;
}
.key-chip:hover { background: var(--bg-elev-2); color: var(--fg); }
.key-chip:active { transform: scale(0.96); }
.key-chip.active {
  background: var(--accent-gradient);
  color: #1a1408;
  border-color: transparent;
  box-shadow: 0 4px 14px rgba(255,184,74,0.3);
}

.fb-titlebar {
  display: flex;
  align-items: baseline;
  gap: 10px;
  flex-wrap: wrap;
  padding: 4px 2px 2px;
}
.fb-subtitle {
  margin: 0;
  font-size: 20px;
  font-weight: 600;
  color: var(--fg);
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.fb-hint {
  font-size: 12px;
  letter-spacing: 0.4px;
  color: var(--fg-mute);
}

/* Double-stops view: pair-count chip at the right of the title bar. */
.ds-count {
  margin-left: auto;
  font-variant-numeric: tabular-nums;
  color: var(--accent);
}
/* Each string-set section gets a header + its own mini-fretboard. */
.ds-set { margin-bottom: 14px; }
.ds-set-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin: 0 4px 4px;
}
.ds-set-title {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.6px;
  text-transform: uppercase;
  color: var(--fg-dim);
}
.ds-set-count {
  font-size: 11px;
  font-variant-numeric: tabular-nums;
  color: var(--fg-mute);
}
.ds-set-empty {
  padding: 14px 10px;
  font-size: 12px;
  color: var(--fg-mute);
  text-align: center;
  border: 1px dashed var(--border);
  border-radius: 8px;
}
#ds-board .fretboard-svg {
  width: 100%;
  height: auto;
  display: block;
}
.ds-exception-toggle {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 8px;
  cursor: pointer;
  user-select: none;
}
.fretboard-wrap {
  width: 100%;
  overflow-x: auto;
  padding: 4px 0 6px;
  scrollbar-width: thin;
}
.fb-group-title {
  margin: 14px 0 4px;
  padding: 0 2px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 1.4px;
  text-transform: uppercase;
  color: var(--fg-mute);
  border-bottom: 1px solid var(--border);
  padding-bottom: 4px;
}
.fretboard-wrap.is-triads .fb-group-title:first-child {
  margin-top: 0;
}
.fretboard-svg {
  width: 100%;
  min-width: 680px;
  height: auto;
  display: block;
}

.fb-label-str,
.fb-label-fret,
.fb-note-text {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;
}
.fb-label-str { font-size: 12px; font-weight: 600; fill: var(--fg-mute); }
.fb-label-fret { font-size: 11px; font-weight: 500; fill: var(--fg-dim); }
.fb-note-text { font-size: 11px; font-weight: 700; pointer-events: none; }

.fb-legend {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 12px;
  padding: 10px 14px;
  flex-wrap: wrap;
  background: var(--legend-bg);
  border-radius: 10px;
  color: var(--fg-dim);
  margin-top: 8px;
}
.fb-legend .legend-dot {
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: #3a362f;
  border: 1px solid #121009;
  display: inline-block;
}
.fb-legend .legend-dot.root {
  background: var(--accent-gradient);
  border-color: rgba(122,74,16,0.6);
}
.fb-legend .legend-tip {
  margin-left: auto;
  color: var(--fg-mute);
  font-size: 11px;
  letter-spacing: 0.3px;
}

/* ---------- Chord grid (chords view) ---------- */
.fretboard-wrap.is-chords {
  overflow-x: visible;
  padding: 8px 2px 4px;
}
.chord-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: 12px;
  width: 100%;
}
.chord-card {
  appearance: none;
  -webkit-appearance: none;
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 6px 4px 10px;
  color: var(--fg);
  transition: background 140ms ease, border-color 140ms ease, box-shadow 140ms ease;
  display: flex;
  align-items: center;
  justify-content: center;
}
.chord-diagram {
  width: 100%;
  height: auto;
  display: block;
}
.chord-name {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;
  font-size: 11px;
  font-weight: 700;
  fill: var(--fg-mute);
  letter-spacing: 0.3px;
  text-transform: uppercase;
}
.chord-fret-num {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;
  font-size: 12px;
  font-weight: 700;
  fill: var(--fg);
  letter-spacing: 0.2px;
}
.chord-mark {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;
  font-size: 12px;
  font-weight: 600;
}
.chord-degree {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;
  font-size: 9.5px;
  font-weight: 700;
  pointer-events: none;
  letter-spacing: -0.2px;
}
.chord-degree.wide {
  font-size: 8.5px;
  letter-spacing: -0.5px;
}
.chord-empty {
  padding: 24px 18px;
  border-radius: 14px;
  background: var(--bg-elev);
  color: var(--fg-mute);
  border: 1px dashed var(--border-dashed);
  font-size: 13px;
  line-height: 1.5;
  text-align: center;
}

/* Legend variants */
.fb-legend.is-chords .legend-dot,
.fb-legend.is-chords .legend-dot.root,
.fb-legend.is-chords .legend-dot + span {
  display: none;
}

/* ---------- Wider screens ---------- */
@media (min-width: 900px) {
  .metronome { max-width: 640px; gap: 22px; }
  .play-btn { width: 108px; height: 108px; }
  .tempo-display #bpm-value { font-size: 56px; }
  .chord-grid { grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 14px; }
}

/* ---------- Generic buttons used by Tutorials & Picker ---------- */
.btn-primary {
  padding: 10px 16px;
  font: inherit;
  font-size: 14px;
  font-weight: 600;
  background: var(--accent-gradient);
  color: #1a1408;
  border: 0;
  border-radius: 10px;
  cursor: pointer;
  transition: opacity 140ms ease, transform 140ms ease;
}
.btn-primary:hover { opacity: 0.95; }
.btn-primary:active { transform: scale(0.98); }
.btn-primary:disabled { opacity: 0.6; cursor: default; }
.btn-ghost {
  padding: 10px 16px;
  font: inherit;
  font-size: 14px;
  font-weight: 600;
  background: transparent;
  color: var(--fg);
  border: 1px solid var(--border);
  border-radius: 10px;
  cursor: pointer;
  transition: background 140ms ease, border-color 140ms ease;
}
.btn-ghost:hover { background: var(--bg-elev-2); border-color: rgba(255,184,74,0.45); }

/* ---------- Tutorials view ---------- */
.tutorials {
  display: flex;
  flex-direction: column;
  gap: 16px;
  width: 100%;
  max-width: 1100px;
  margin: 0 auto;
}
.tutorials-toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}
.tutorials-filters {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
}
.tutorials-filter-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--fg-dim);
}
.tutorials-filter-label select {
  padding: 8px 12px;
  font: inherit;
  font-size: 14px;
  background: var(--bg-elev-2);
  color: var(--fg);
  border: 1px solid var(--border);
  border-radius: 10px;
  cursor: pointer;
}
.tutorials-fav-toggle {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 12px;
  font: inherit;
  font-size: 14px;
  font-weight: 600;
  background: var(--bg-elev-2);
  color: var(--fg-dim);
  border: 1px solid var(--border);
  border-radius: 10px;
  cursor: pointer;
  transition: background 140ms ease, color 140ms ease, border-color 140ms ease;
}
.tutorials-fav-toggle:hover { background: var(--bg-elev-3); color: var(--fg); }
.tutorials-fav-toggle.is-active {
  background: rgba(255,184,74,0.12);
  color: var(--accent);
  border-color: rgba(255,184,74,0.45);
}
.tutorials-add-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 9px 14px;
  font: inherit;
  font-size: 14px;
  font-weight: 600;
  background: var(--accent-gradient);
  color: #1a1408;
  border: 0;
  border-radius: 10px;
  cursor: pointer;
  transition: opacity 140ms ease, transform 140ms ease;
}
.tutorials-add-btn:hover { opacity: 0.95; }
.tutorials-add-btn:active { transform: scale(0.98); }

.tutorials-form {
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 18px 18px 16px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.tutorials-form-title {
  margin: 0;
  font-size: 16px;
  font-weight: 600;
  color: var(--fg);
}
.tutorials-field {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.tutorials-field > span {
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.6px;
  color: var(--fg-dim);
}
.tutorials-field input,
.tutorials-field select {
  padding: 10px 12px;
  font: inherit;
  font-size: 14px;
  background: var(--bg-elev-2);
  color: var(--fg);
  border: 1px solid var(--border);
  border-radius: 10px;
  outline: none;
  transition: border-color 140ms ease, background 140ms ease;
}
.tutorials-field input:focus,
.tutorials-field select:focus {
  border-color: rgba(255,184,74,0.55);
  background: var(--bg-elev-3);
}
.tutorials-form-actions {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  margin-top: 4px;
}
.tutorials-form-status {
  margin: 0;
  padding: 8px 12px;
  font-size: 13px;
  border-radius: 8px;
  background: var(--section-bg);
  border: 1px solid var(--border);
  color: var(--fg-dim);
}
.tutorials-form-status.is-error {
  background: rgba(255,90,90,0.10);
  border-color: rgba(255,90,90,0.35);
  color: #ffb0b0;
}
[data-theme="light"] .tutorials-form-status.is-error { color: #b03030; }

.tutorials-empty {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  padding: 36px 20px;
  text-align: center;
  border-radius: 14px;
  background: var(--bg-elev);
  border: 1px dashed var(--border-dashed, var(--border));
  color: var(--fg-dim);
}

.tutorials-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 16px;
}
.tut-card {
  position: relative;
  display: flex;
  flex-direction: column;
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: 14px;
  overflow: hidden;
  transition: border-color 140ms ease, transform 140ms ease, box-shadow 140ms ease;
}
.tut-card:hover {
  border-color: rgba(255,184,74,0.4);
  box-shadow: 0 6px 20px rgba(0,0,0,0.18);
  transform: translateY(-1px);
}
.tut-thumb {
  position: relative;
  display: block;
  aspect-ratio: 16 / 9;
  background: var(--bg-elev-2);
  overflow: hidden;
}
.tut-thumb-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.tut-thumb-placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--fg-mute);
  background: var(--bg-elev-2);
}
.tut-source {
  position: absolute;
  top: 8px;
  left: 8px;
  padding: 3px 8px;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.4px;
  text-transform: uppercase;
  background: rgba(0,0,0,0.7);
  color: #fff;
  border-radius: 6px;
}
.tut-thumb-play {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 48px;
  height: 48px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: rgba(0,0,0,0.6);
  color: #fff;
  opacity: 0;
  transition: opacity 140ms ease, transform 140ms ease;
}
.tut-card:hover .tut-thumb-play { opacity: 1; transform: translate(-50%, -50%) scale(1.05); }
.tut-body {
  padding: 12px 14px 8px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.tut-title {
  margin: 0;
  font-size: 15px;
  font-weight: 600;
  line-height: 1.35;
  color: var(--fg);
}
.tut-title a {
  color: inherit;
  text-decoration: none;
}
.tut-title a:hover { color: var(--accent); }
.tut-category {
  align-self: flex-start;
  padding: 3px 8px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.3px;
  background: var(--bg-elev-2);
  color: var(--fg-dim);
  border-radius: 999px;
}
.tut-actions {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 0 8px 10px;
  margin-top: auto;
}
.tut-action {
  width: 32px;
  height: 32px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  color: var(--fg-mute);
  border: 0;
  border-radius: 8px;
  cursor: pointer;
  transition: background 140ms ease, color 140ms ease;
}
.tut-action:hover { background: var(--bg-elev-2); color: var(--fg); }
.tut-fav.is-on { color: var(--accent); }
.tut-delete:hover { color: #ff8080; background: rgba(255,90,90,0.10); }
[data-theme="light"] .tut-delete:hover { color: #b03030; }

/* ---------- Journal: linked tutorials strip ---------- */
.journal-tutorials {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  background: var(--section-bg);
  border-bottom: 1px solid var(--border);
}
.journal-tutorials-label {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.8px;
  text-transform: uppercase;
  color: var(--fg-mute);
  margin-right: 4px;
}
.journal-tutorials-list {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}
.journal-tut-chip {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 2px 6px 2px 2px;
}
.journal-tut-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  text-decoration: none;
  color: var(--fg);
  font-size: 12px;
  max-width: 220px;
}
.journal-tut-link:hover { color: var(--accent); }
.journal-tut-thumb {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  object-fit: cover;
  flex: 0 0 auto;
  background: var(--bg-elev-2);
}
.journal-tut-thumb-fallback {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--fg-mute);
  font-size: 12px;
}
.journal-tut-title {
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 180px;
}
.journal-tut-unlink {
  width: 18px;
  height: 18px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  color: var(--fg-mute);
  border: 0;
  border-radius: 50%;
  cursor: pointer;
}
.journal-tut-unlink:hover { background: rgba(255,90,90,0.18); color: #ff8080; }
[data-theme="light"] .journal-tut-unlink:hover { color: #b03030; }
.journal-tutorials-add {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px 10px;
  font: inherit;
  font-size: 12px;
  font-weight: 600;
  background: transparent;
  color: var(--fg-dim);
  border: 1px dashed var(--border);
  border-radius: 999px;
  cursor: pointer;
  transition: background 140ms ease, color 140ms ease, border-color 140ms ease;
}
.journal-tutorials-add:hover {
  background: var(--bg-elev-2);
  color: var(--fg);
  border-color: rgba(255,184,74,0.5);
}

/* ---------- Tutorial picker (modal) ---------- */
.tut-picker-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.55);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  z-index: 1000;
}
.tut-picker-panel {
  width: 100%;
  max-width: 480px;
  max-height: 80vh;
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: 16px;
  display: flex;
  flex-direction: column;
  box-shadow: 0 20px 60px rgba(0,0,0,0.5);
  overflow: hidden;
}
.tut-picker-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 16px;
  border-bottom: 1px solid var(--border);
}
.tut-picker-header h3 {
  margin: 0;
  font-size: 15px;
  font-weight: 600;
  color: var(--fg);
}
.tut-picker-close {
  width: 32px;
  height: 32px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  color: var(--fg-dim);
  border: 0;
  border-radius: 8px;
  cursor: pointer;
}
.tut-picker-close:hover { background: var(--bg-elev-2); color: var(--fg); }
.tut-picker-list {
  overflow-y: auto;
  padding: 8px;
}
.tut-picker-empty {
  margin: 0;
  padding: 24px 12px;
  text-align: center;
  color: var(--fg-dim);
  font-size: 13px;
}
.tut-picker-item {
  width: 100%;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 8px 10px;
  background: transparent;
  color: var(--fg);
  border: 0;
  border-radius: 10px;
  cursor: pointer;
  text-align: left;
  transition: background 140ms ease;
}
.tut-picker-item:hover { background: var(--bg-elev-2); }
.tut-picker-thumb {
  width: 64px;
  height: 36px;
  flex: 0 0 auto;
  border-radius: 6px;
  object-fit: cover;
  background: var(--bg-elev-2);
}
.tut-picker-thumb-fallback {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--fg-mute);
  font-size: 18px;
}
.tut-picker-meta {
  flex: 1 1 auto;
  display: flex;
  flex-direction: column;
  gap: 4px;
  min-width: 0;
}
.tut-picker-title {
  font-size: 14px;
  font-weight: 500;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.tut-picker-cat {
  align-self: flex-start;
  font-size: 11px;
  color: var(--fg-mute);
  background: var(--bg-elev-2);
  padding: 2px 6px;
  border-radius: 999px;
}
body.is-modal-open { overflow: hidden; }

/* ---------- Backing tracks view ---------- */
.bt-view {
  display: flex;
  flex-direction: column;
  gap: 16px;
  width: 100%;
  max-width: 1100px;
  margin: 0 auto;
}
.bt-toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}
.bt-filters {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
}
.bt-filter-label {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  color: var(--fg-dim);
}
.bt-filter-label select {
  padding: 8px 12px;
  font: inherit;
  font-size: 14px;
  background: var(--bg-elev-2);
  color: var(--fg);
  border: 1px solid var(--border);
  border-radius: 10px;
  cursor: pointer;
}
.bt-fav-toggle {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 12px;
  font: inherit;
  font-size: 14px;
  font-weight: 600;
  background: var(--bg-elev-2);
  color: var(--fg-dim);
  border: 1px solid var(--border);
  border-radius: 10px;
  cursor: pointer;
  transition: background 140ms ease, color 140ms ease, border-color 140ms ease;
}
.bt-fav-toggle:hover { background: var(--bg-elev-3); color: var(--fg); }
.bt-fav-toggle.is-active {
  background: rgba(255,184,74,0.12);
  color: var(--accent);
  border-color: rgba(255,184,74,0.45);
}
.bt-add-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 9px 14px;
  font: inherit;
  font-size: 14px;
  font-weight: 600;
  background: var(--accent-gradient);
  color: #1a1408;
  border: 0;
  border-radius: 10px;
  cursor: pointer;
  transition: opacity 140ms ease, transform 140ms ease;
}
.bt-add-btn:hover { opacity: 0.95; }
.bt-add-btn:active { transform: scale(0.98); }

.bt-form {
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 18px 18px 16px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.bt-form-title {
  margin: 0;
  font-size: 16px;
  font-weight: 600;
  color: var(--fg);
}
.bt-field {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.bt-field > span {
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.6px;
  color: var(--fg-dim);
}
.bt-field input,
.bt-field select {
  padding: 10px 12px;
  font: inherit;
  font-size: 14px;
  background: var(--bg-elev-2);
  color: var(--fg);
  border: 1px solid var(--border);
  border-radius: 10px;
  outline: none;
  transition: border-color 140ms ease, background 140ms ease;
}
.bt-field input:focus,
.bt-field select:focus {
  border-color: rgba(255,184,74,0.55);
  background: var(--bg-elev-3);
}
.bt-field-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}
.bt-form-actions {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  margin-top: 4px;
}
.bt-form-status {
  margin: 0;
  padding: 8px 12px;
  font-size: 13px;
  border-radius: 8px;
  background: var(--section-bg);
  border: 1px solid var(--border);
  color: var(--fg-dim);
}
.bt-form-status.is-error {
  background: rgba(255,90,90,0.10);
  border-color: rgba(255,90,90,0.35);
  color: #ffb0b0;
}
[data-theme="light"] .bt-form-status.is-error { color: #b03030; }

.bt-empty {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  padding: 36px 20px;
  text-align: center;
  border-radius: 14px;
  background: var(--bg-elev);
  border: 1px dashed var(--border);
  color: var(--fg-dim);
}

.bt-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 16px;
}
.bt-card {
  position: relative;
  display: flex;
  flex-direction: column;
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: 14px;
  overflow: hidden;
  transition: border-color 140ms ease, transform 140ms ease, box-shadow 140ms ease;
}
.bt-card:hover {
  border-color: rgba(255,184,74,0.4);
  box-shadow: 0 6px 20px rgba(0,0,0,0.18);
  transform: translateY(-1px);
}
.bt-thumb {
  position: relative;
  display: block;
  aspect-ratio: 16 / 9;
  background: var(--bg-elev-2);
  overflow: hidden;
}
.bt-thumb-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.bt-thumb-placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255,255,255,0.85);
}
/* Source-themed placeholders. */
.bt-thumb-placeholder.bt-source-spotify    { background: linear-gradient(135deg, #1ed760 0%, #128a3c 100%); }
.bt-thumb-placeholder.bt-source-youtube    { background: linear-gradient(135deg, #ff5757 0%, #b30000 100%); }
.bt-thumb-placeholder.bt-source-soundcloud { background: linear-gradient(135deg, #ff8a3d 0%, #cf5a00 100%); }
.bt-thumb-placeholder.bt-source-other      { background: linear-gradient(135deg, #4a4f57 0%, #2c3036 100%); }

.bt-source-badge {
  position: absolute;
  top: 8px;
  left: 8px;
  padding: 3px 8px;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.4px;
  text-transform: uppercase;
  background: rgba(0,0,0,0.7);
  color: #fff;
  border-radius: 6px;
}
.bt-source-badge.bt-source-spotify    { background: #1ed760; color: #052816; }
.bt-source-badge.bt-source-youtube    { background: #ff0000; color: #fff; }
.bt-source-badge.bt-source-soundcloud { background: #ff7700; color: #2a1500; }

.bt-thumb-play {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 48px;
  height: 48px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: rgba(0,0,0,0.6);
  color: #fff;
  opacity: 0;
  transition: opacity 140ms ease, transform 140ms ease;
}
.bt-card:hover .bt-thumb-play { opacity: 1; transform: translate(-50%, -50%) scale(1.05); }

.bt-body {
  padding: 12px 14px 8px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.bt-title {
  margin: 0;
  font-size: 15px;
  font-weight: 600;
  line-height: 1.35;
  color: var(--fg);
}
.bt-title a {
  color: inherit;
  text-decoration: none;
}
.bt-title a:hover { color: var(--accent); }
.bt-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
}
.bt-key, .bt-style {
  padding: 3px 8px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.3px;
  border-radius: 999px;
}
.bt-key {
  background: rgba(255,184,74,0.16);
  color: var(--accent);
}
.bt-style {
  background: var(--bg-elev-2);
  color: var(--fg-dim);
}
.bt-actions {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 0 8px 10px;
  margin-top: auto;
}
.bt-action {
  width: 32px;
  height: 32px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  color: var(--fg-mute);
  border: 0;
  border-radius: 8px;
  cursor: pointer;
  transition: background 140ms ease, color 140ms ease;
}
.bt-action:hover { background: var(--bg-elev-2); color: var(--fg); }
.bt-fav.is-on { color: var(--accent); }
.bt-delete:hover { color: #ff8080; background: rgba(255,90,90,0.10); }
[data-theme="light"] .bt-delete:hover { color: #b03030; }

/* ---------- Shell voicings view ---------- */
.shells {
  width: 100%;
  max-width: 960px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding-top: 8px;
}
.shells-pair {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
}
.shell-card {
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 14px 16px 16px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.shell-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}
.shell-card-tag {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--accent);
}
.shell-card-pos {
  font-size: 12px;
  font-weight: 600;
  color: var(--fg-dim);
  font-variant-numeric: tabular-nums;
}
.shell-card-diagram {
  display: flex;
  justify-content: center;
}
.shell-card-diagram .chord-diagram {
  /* Slightly larger than the diagrams in the chord grid. */
  max-width: 200px;
  width: 100%;
}
.shell-card-help {
  margin: 0;
  font-size: 12px;
  line-height: 1.4;
  color: var(--fg-mute);
  text-align: center;
}
.shells-explainer {
  margin: 0;
  padding: 12px 14px;
  background: var(--section-bg);
  border: 1px solid var(--border);
  border-radius: 12px;
  color: var(--fg-dim);
  font-size: 13px;
  line-height: 1.5;
}
.shells-error {
  padding: 16px;
  background: var(--section-bg);
  border: 1px solid var(--border);
  border-radius: 12px;
  color: var(--fg-mute);
  text-align: center;
}

@media (max-width: 480px) {
  .shells-pair {
    grid-template-columns: 1fr;
  }
}

/* ---------- Note Guessing game ---------- */
.game {
  width: 100%;
  max-width: 960px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
  padding-top: 8px;
}
.game-header {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}
.game-stat {
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 14px 18px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  transition: background 200ms ease, border-color 200ms ease, color 200ms ease;
}
.game-stat-label {
  font-size: 11px;
  letter-spacing: 1px;
  text-transform: uppercase;
  font-weight: 700;
  color: var(--fg-mute);
}
.game-stat-value {
  font-size: 28px;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  line-height: 1;
}
.game-stat.is-low {
  border-color: rgba(255, 90, 90, 0.45);
  background: rgba(255, 90, 90, 0.08);
}
.game-stat.is-low .game-stat-value {
  background: linear-gradient(135deg, #ff8080, #d33);
  -webkit-background-clip: text;
  background-clip: text;
}

/* Idle / over screens share the same hero card layout */
.game-idle, .game-over {
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 36px 24px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
  text-align: center;
}
.game-idle-title, .game-over-title {
  margin: 0;
  font-size: 28px;
  font-weight: 700;
  color: var(--fg);
}
.game-idle-sub {
  margin: 0;
  max-width: 480px;
  color: var(--fg-dim);
  font-size: 15px;
  line-height: 1.5;
}
.game-idle-best, .game-over-score {
  margin: 0;
  color: var(--fg-dim);
  font-size: 14px;
}
.game-idle-best strong, .game-over-score strong {
  color: var(--accent);
  font-weight: 700;
}
.game-over-best {
  margin: 0;
  font-size: 15px;
  font-weight: 600;
  color: var(--accent);
}
.game-start-btn {
  margin-top: 4px;
  padding: 14px 32px;
  font: inherit;
  font-size: 16px;
  font-weight: 700;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  background: var(--accent-gradient);
  color: #1a1408;
  border: 0;
  border-radius: 999px;
  cursor: pointer;
  transition: opacity 140ms ease, transform 140ms ease;
}
.game-start-btn:hover { opacity: 0.95; }
.game-start-btn:active { transform: scale(0.97); }

.game-stop-btn {
  align-self: center;
  padding: 8px 18px;
  font: inherit;
  font-size: 13px;
  font-weight: 600;
  background: transparent;
  color: var(--fg-dim);
  border: 1px solid var(--border);
  border-radius: 999px;
  cursor: pointer;
  transition: background 140ms ease, color 140ms ease, border-color 140ms ease;
}
.game-stop-btn:hover {
  background: rgba(255,90,90,0.10);
  border-color: rgba(255,90,90,0.45);
  color: #ff8080;
}
[data-theme="light"] .game-stop-btn:hover { color: #b03030; }

.game-playing {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
}
.game-fretboard-wrap {
  width: 100%;
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 8px;
  position: relative;
  transition: box-shadow 140ms ease, border-color 140ms ease;
}
.game-fretboard-svg {
  width: 100%;
  height: auto;
  display: block;
}
.game-label-str {
  font-size: 12px;
  font-weight: 700;
  fill: var(--fg-mute);
}
.game-label-fret {
  font-size: 11px;
  fill: var(--fg-dim);
}
.game-dot {
  filter: drop-shadow(0 0 8px rgba(255,184,74,0.45));
}

@keyframes game-flash-correct {
  0%   { box-shadow: 0 0 0 0 rgba(46,170,95,0.7); border-color: rgba(46,170,95,0.7); }
  100% { box-shadow: 0 0 0 14px rgba(46,170,95,0);   border-color: var(--border);     }
}
@keyframes game-flash-wrong {
  0%, 100% { transform: translateX(0); }
  20%  { transform: translateX(-6px); }
  40%  { transform: translateX(6px);  }
  60%  { transform: translateX(-3px); }
  80%  { transform: translateX(3px);  }
}
.game-fretboard-wrap.flash-correct { animation: game-flash-correct 320ms ease-out; }
.game-fretboard-wrap.flash-wrong   { animation: game-flash-wrong 280ms ease-in-out; }

.game-buttons {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 8px;
  width: 100%;
}
.game-note-btn {
  padding: 14px 6px;
  font: inherit;
  font-size: 18px;
  font-weight: 700;
  background: var(--bg-elev);
  color: var(--fg);
  border: 1px solid var(--border);
  border-radius: 12px;
  cursor: pointer;
  transition: background 140ms ease, color 140ms ease, border-color 140ms ease, transform 140ms ease;
}
.game-note-btn:hover {
  background: var(--bg-elev-2);
  border-color: rgba(255,184,74,0.45);
}
.game-note-btn:active { transform: scale(0.97); }
.game-note-btn .game-sharp {
  font-weight: 600;
  font-size: 0.85em;
}
@keyframes game-btn-correct {
  0%   { transform: scale(1); }
  40%  { transform: scale(1.08); }
  100% { transform: scale(1); }
}
@keyframes game-btn-wrong {
  0%, 100% { transform: translateX(0); }
  20%  { transform: translateX(-6px); }
  40%  { transform: translateX(6px);  }
  60%  { transform: translateX(-3px); }
  80%  { transform: translateX(3px);  }
}
.game-note-btn.correct {
  background: rgba(46, 170, 95, 0.18);
  border-color: rgba(46, 170, 95, 0.7);
  color: #2eaa5f;
  animation: game-btn-correct 220ms ease-out;
}
.game-note-btn.wrong {
  background: rgba(255, 90, 90, 0.18);
  border-color: rgba(255, 90, 90, 0.7);
  color: #ff8080;
  animation: game-btn-wrong 280ms ease-in-out;
}
[data-theme="light"] .game-note-btn.wrong { color: #b03030; }

@media (max-width: 480px) {
  .game-buttons {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
  .game-note-btn { font-size: 16px; padding: 12px 4px; }
  .game-stat-value { font-size: 22px; }
}

/* ============================================================
 * Exercises (practice bank) — sidebar + editor, mirrors Journal.
 * ============================================================ */

.exercises {
  display: grid;
  grid-template-columns: 260px minmax(0, 1fr);
  gap: 16px;
  width: 100%;
  min-height: calc(100vh - 140px);
  align-items: stretch;
}

.exercises-sidebar {
  display: flex;
  flex-direction: column;
  gap: 8px;
  min-width: 0;
}
.exercises-new-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 40px;
  padding: 0 14px;
  border-radius: 10px;
  background: var(--accent-gradient);
  color: #1a1408;
  font-weight: 600;
  font-size: 14px;
  letter-spacing: 0.2px;
  box-shadow: 0 4px 14px rgba(255, 184, 74, 0.28);
  transition: transform 140ms ease, filter 140ms ease;
}
.exercises-new-btn:hover { filter: brightness(1.05); }
.exercises-new-btn:active { transform: scale(0.98); }
.exercises-new-icon {
  font-size: 18px;
  font-weight: 700;
  line-height: 1;
}
.exercises-search {
  height: 34px;
  padding: 0 10px;
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--fg);
  font: inherit;
  font-size: 13px;
  outline: none;
}
.exercises-search::placeholder { color: var(--fg-mute); }
.exercises-search:focus { border-color: rgba(255, 184, 74, 0.45); }

.exercises-list {
  list-style: none;
  margin: 0;
  padding: 4px 0;
  display: flex;
  flex-direction: column;
  gap: 4px;
  overflow-y: auto;
  max-height: calc(100vh - 260px);
  scrollbar-width: thin;
}
.exercises-list-item {
  position: relative;
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 10px 12px 10px 16px;
  border-radius: 10px;
  background: var(--bg-elev);
  border: 1px solid var(--border);
  cursor: pointer;
  transition: background 140ms ease, border-color 140ms ease, transform 100ms ease;
  outline: none;
  min-width: 0;
}
.exercises-list-item:hover { background: var(--bg-elev-2); }
.exercises-list-item:active { transform: scale(0.99); }
.exercises-list-item.is-active {
  background: #5a606b;
  border-color: rgba(255, 210, 117, 0.55);
  box-shadow: inset 0 0 0 1px rgba(255, 184, 74, 0.2);
}
[data-theme="light"] .exercises-list-item.is-active { background: #ffffff; }
.exercises-list-item.is-active::before {
  content: "";
  position: absolute;
  left: 5px;
  top: 10px;
  bottom: 10px;
  width: 3px;
  border-radius: 2px;
  background: var(--accent);
}
.exercises-item-name {
  font-size: 14px;
  font-weight: 600;
  color: var(--fg);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.exercises-item-meta {
  font-size: 11px;
  color: var(--fg-mute);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* Editor */
.exercises-editor {
  display: flex;
  flex-direction: column;
  min-width: 0;
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: 14px;
  overflow: hidden;
}
.exercises-empty[hidden],
.exercises-pane[hidden] { display: none; }
.exercises-empty {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 14px;
  text-align: center;
  color: var(--fg-mute);
  font-size: 14px;
  padding: 40px 20px;
}
.exercises-empty-icon {
  width: 96px;
  height: 96px;
  color: var(--fg-mute);
  opacity: 0.6;
}
.exercises-empty-link {
  background: transparent;
  border: none;
  padding: 4px 6px;
  font: inherit;
  font-size: 14px;
  font-weight: 600;
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 3px;
  cursor: pointer;
  border-radius: 6px;
}
.exercises-empty-link:hover { color: var(--accent-strong); background: rgba(255, 184, 74, 0.08); }

.exercises-pane {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-height: 0;
  overflow-y: auto;
}
.exercises-header {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 14px;
  border-bottom: 1px solid var(--border);
  background: var(--bg-elev);
}
.exercises-back {
  display: none;
  width: 36px;
  height: 36px;
  align-items: center;
  justify-content: center;
  border-radius: 8px;
  color: var(--fg-dim);
}
.exercises-back:hover { background: var(--bg-elev-2); color: var(--fg); }
.exercises-name {
  flex: 1 1 auto;
  min-width: 0;
  background: transparent;
  border: none;
  outline: none;
  font: inherit;
  color: var(--fg);
  font-size: 18px;
  font-weight: 600;
  letter-spacing: -0.2px;
  padding: 6px 4px;
  border-radius: 6px;
}
.exercises-name::placeholder { color: var(--fg-mute); }
.exercises-name:focus { background: var(--bg-elev-2); }
.exercises-delete {
  width: 36px;
  height: 36px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 8px;
  color: var(--fg-mute);
  background: transparent;
  border: none;
  cursor: pointer;
  transition: background 140ms ease, color 140ms ease;
}
.exercises-delete:hover { background: rgba(255, 90, 90, 0.12); color: #ff8080; }

/* Form */
.ex-form {
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding: 16px 18px;
}
.ex-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}
@media (max-width: 720px) {
  .ex-row { grid-template-columns: 1fr; }
}
.ex-field {
  display: flex;
  flex-direction: column;
  gap: 6px;
  min-width: 0;
}
.ex-field-label {
  font-size: 11px;
  font-weight: 600;
  color: var(--fg-mute);
  text-transform: uppercase;
  letter-spacing: 0.6px;
}
.ex-field input[type="text"],
.ex-field input[type="number"],
.ex-form textarea {
  background: var(--bg-elev-2);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--fg);
  font: inherit;
  font-size: 14px;
  padding: 8px 10px;
  outline: none;
  transition: border-color 140ms ease;
}
.ex-field input:focus,
.ex-form textarea:focus { border-color: rgba(255, 184, 74, 0.45); }
.ex-form textarea {
  resize: vertical;
  min-height: 90px;
  line-height: 1.5;
  font-family: inherit;
}

/* Difficulty chips */
.ex-difficulty {
  display: inline-flex;
  gap: 6px;
}
.ex-difficulty button {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  background: var(--bg-elev-2);
  border: 1px solid var(--border);
  color: var(--fg-dim);
  font: inherit;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: background 140ms ease, color 140ms ease, border-color 140ms ease;
}
.ex-difficulty button:hover { background: var(--bg-elev); color: var(--fg); }
.ex-difficulty button.is-active {
  background: var(--accent-gradient);
  color: #1a1408;
  border-color: rgba(255, 184, 74, 0.7);
}

/* BPM range */
.ex-bpm-range {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.ex-bpm-range input {
  width: 90px;
}
.ex-bpm-sep { color: var(--fg-mute); font-weight: 600; }

/* Tags */
.ex-tags-wrap {
  background: var(--bg-elev-2);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 6px 8px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
}
.ex-tags-wrap:focus-within { border-color: rgba(255, 184, 74, 0.45); }
.ex-tags {
  list-style: none;
  margin: 0;
  padding: 0;
  display: contents;
}
.ex-tag {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  background: rgba(255, 184, 74, 0.14);
  border: 1px solid rgba(255, 184, 74, 0.4);
  color: var(--fg);
  font-size: 12px;
  font-weight: 500;
  border-radius: 999px;
  padding: 2px 4px 2px 10px;
}
.ex-tag-x {
  width: 18px;
  height: 18px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: transparent;
  border: none;
  color: var(--fg-mute);
  font: inherit;
  font-size: 14px;
  line-height: 1;
  cursor: pointer;
  padding: 0;
}
.ex-tag-x:hover { background: rgba(255, 90, 90, 0.18); color: #ff8080; }
.ex-tags-input {
  flex: 1 1 140px;
  min-width: 120px;
  background: transparent;
  border: none;
  outline: none;
  font: inherit;
  font-size: 13px;
  color: var(--fg);
  padding: 4px 2px;
}
.ex-tags-input::placeholder { color: var(--fg-mute); }

/* Media section */
.ex-media-section {
  border-top: 1px solid var(--border);
  padding: 16px 18px 22px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.ex-media-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  flex-wrap: wrap;
}
.ex-media-header h3 {
  margin: 0;
  font-size: 13px;
  font-weight: 700;
  color: var(--fg-mute);
  text-transform: uppercase;
  letter-spacing: 0.6px;
}
.ex-media-actions {
  display: inline-flex;
  flex-wrap: wrap;
  gap: 6px;
}
.ex-add-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  height: 30px;
  padding: 0 10px;
  background: var(--bg-elev-2);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--fg-dim);
  font: inherit;
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  transition: background 140ms ease, color 140ms ease, border-color 140ms ease;
}
.ex-add-btn:hover {
  background: var(--bg-elev);
  color: var(--fg);
  border-color: rgba(255, 184, 74, 0.45);
}
.ex-media-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.ex-media-item {
  position: relative;
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 10px;
  background: var(--bg-elev-2);
  border: 1px solid var(--border);
  border-radius: 10px;
}
.ex-media-body {
  flex: 1 1 auto;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.ex-media-yt {
  position: relative;
  width: 100%;
  max-width: 520px;
  aspect-ratio: 16 / 9;
  background: #000;
  border-radius: 8px;
  overflow: hidden;
}
.ex-media-yt iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: 0;
}
.ex-media-img {
  display: block;
  max-width: 100%;
  max-height: 360px;
  border-radius: 8px;
  object-fit: contain;
}
.ex-media-file {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--fg-dim);
}
.ex-media-file a {
  color: var(--fg);
  font-weight: 500;
  text-decoration: none;
  border-bottom: 1px dotted var(--border);
}
.ex-media-file a:hover { color: var(--accent); border-color: var(--accent); }
.ex-media-fileicon { color: var(--fg-mute); flex: 0 0 auto; }
.ex-media-label {
  font-size: 12px;
  color: var(--fg-mute);
}
.ex-media-link {
  color: var(--fg);
  word-break: break-all;
}
.ex-media-remove {
  width: 28px;
  height: 28px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: none;
  color: var(--fg-mute);
  border-radius: 6px;
  cursor: pointer;
  flex: 0 0 auto;
  transition: background 140ms ease, color 140ms ease;
}
.ex-media-remove:hover { background: rgba(255, 90, 90, 0.14); color: #ff8080; }

/* Responsive: collapse to single column on narrow screens */
@media (max-width: 720px) {
  .exercises {
    grid-template-columns: 1fr;
  }
  .exercises[data-mode="list"] .exercises-editor { display: none; }
  .exercises:not([data-mode="list"]) .exercises-sidebar { display: none; }
  .exercises-back { display: inline-flex; }
}

/* ============================================================
 * Journal ↔ Exercise picker + inline exercise links.
 * Picker reuses the .tut-picker-* skeleton; ex-picker-* overrides
 * tweak it for our use (search input + checklist icon).
 * ============================================================ */

.ex-picker-search {
  margin: 10px 12px 4px;
  height: 34px;
  padding: 0 10px;
  background: var(--bg-elev-2);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--fg);
  font: inherit;
  font-size: 13px;
  outline: none;
}
.ex-picker-search::placeholder { color: var(--fg-mute); }
.ex-picker-search:focus { border-color: rgba(255, 184, 74, 0.45); }
.ex-picker-icon {
  width: 32px;
  height: 32px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  flex: 0 0 auto;
  background: var(--bg-elev-2);
  border-radius: 8px;
}

/* Inserted exercise link inside the journal body — a subtle pill style
 * makes it clear this is a clickable reference, not just text. */
.journal-body a[data-exercise-id] {
  display: inline;
  color: var(--accent);
  font-weight: 600;
  text-decoration: none;
  border-bottom: 1px dashed rgba(255, 184, 74, 0.55);
  padding-bottom: 1px;
  cursor: pointer;
}
.journal-body a[data-exercise-id]:hover {
  color: var(--accent-strong);
  border-bottom-style: solid;
}

/* ============================================================
 * Dynamic tempo section in the Metronome view
 * ============================================================ */

.metronome .dyn-section {
  width: 100%;
  max-width: 360px;
  margin: 8px auto 0;
}
.dyn-section > .fb-section-summary {
  display: flex;
  align-items: center;
  gap: 10px;
}
.dyn-summary-label { flex: 1 1 auto; }

/* Toggle switch sitting inside the <summary> */
.dyn-toggle {
  position: relative;
  display: inline-block;
  width: 38px;
  height: 22px;
  flex: 0 0 auto;
}
.dyn-toggle input {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  cursor: pointer;
  z-index: 1;
}
.dyn-toggle-slider {
  position: absolute;
  inset: 0;
  background: var(--bg-elev-2);
  border: 1px solid var(--border);
  border-radius: 999px;
  transition: background 160ms ease, border-color 160ms ease;
}
.dyn-toggle-slider::before {
  content: "";
  position: absolute;
  width: 16px;
  height: 16px;
  left: 2px;
  top: 2px;
  background: var(--fg-mute);
  border-radius: 50%;
  transition: transform 160ms ease, background 160ms ease;
}
.dyn-toggle input:checked + .dyn-toggle-slider {
  background: var(--accent-gradient);
  border-color: rgba(255, 184, 74, 0.7);
}
.dyn-toggle input:checked + .dyn-toggle-slider::before {
  transform: translateX(16px);
  background: #1a1408;
}

.dyn-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px 12px;
  padding: 12px 6px 6px;
}
.dyn-grid.is-disabled {
  opacity: 0.5;
  pointer-events: none;
}
.dyn-field {
  display: flex;
  flex-direction: column;
  gap: 4px;
  min-width: 0;
}
.dyn-label {
  font-size: 11px;
  font-weight: 600;
  color: var(--fg-mute);
  text-transform: uppercase;
  letter-spacing: 0.6px;
}
.dyn-field input,
.dyn-field select {
  background: var(--bg-elev-2);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--fg);
  font: inherit;
  font-size: 14px;
  padding: 6px 8px;
  outline: none;
  font-variant-numeric: tabular-nums;
}
.dyn-field input:focus,
.dyn-field select:focus { border-color: rgba(255, 184, 74, 0.45); }
.dyn-field-amount { grid-column: 1 / -1; }
.dyn-hint {
  grid-column: 1 / -1;
  margin: 4px 2px 0;
  font-size: 12px;
  color: var(--fg-mute);
  line-height: 1.4;
}

/* ============================================================
 * My Guitars view — grid + detail (sidebar/editor) modes.
 * ============================================================ */

.guitars {
  width: 100%;
  max-width: 1100px;
  margin: 0 auto;
}
.guitars-grid-pane[hidden],
.guitars-detail-pane[hidden] { display: none; }
.guitars[data-mode="grid"] .guitars-detail-pane { display: none; }
.guitars[data-mode="detail"] .guitars-grid-pane { display: none; }

/* --- Grid mode --- */
.guitars-grid-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 16px;
}
.guitars-grid-title {
  margin: 0;
  font-size: 22px;
  font-weight: 700;
  color: var(--fg);
  letter-spacing: -0.2px;
}
.guitars-new-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  height: 38px;
  padding: 0 14px;
  border-radius: 10px;
  background: var(--accent-gradient);
  color: #1a1408;
  font: inherit;
  font-weight: 600;
  font-size: 14px;
  cursor: pointer;
  border: none;
  box-shadow: 0 4px 14px rgba(255, 184, 74, 0.28);
  transition: transform 140ms ease, filter 140ms ease;
}
.guitars-new-btn:hover { filter: brightness(1.05); }
.guitars-new-btn:active { transform: scale(0.98); }
.guitars-new-icon { font-size: 18px; font-weight: 700; line-height: 1; }
.guitars-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 16px;
}
.guitar-card {
  display: flex;
  flex-direction: column;
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: 14px;
  overflow: hidden;
  text-align: left;
  cursor: pointer;
  padding: 0;
  transition: background 140ms ease, border-color 140ms ease, transform 100ms ease;
  font: inherit;
  color: var(--fg);
}
.guitar-card:hover { background: var(--bg-elev-2); border-color: rgba(255, 184, 74, 0.4); }
.guitar-card:active { transform: scale(0.99); }
.guitar-card-photo {
  width: 100%;
  height: 160px;
  object-fit: cover;
  background: var(--bg-elev-2);
  display: block;
}
.guitar-card-photo-empty {
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--fg-mute);
  opacity: 0.6;
}
.guitar-card-photo-empty svg { width: 64px; height: 64px; }
.guitar-card-body {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: 10px 12px 12px;
}
.guitar-card-name {
  font-size: 14px;
  font-weight: 600;
  color: var(--fg);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.guitar-card-meta {
  font-size: 11px;
  color: var(--fg-mute);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.guitars-empty {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  padding: 60px 20px;
  color: var(--fg-mute);
  text-align: center;
}
.guitars-empty[hidden] { display: none; }
.guitars-empty-icon {
  width: 96px;
  height: 96px;
  color: var(--fg-mute);
  opacity: 0.6;
}
.guitars-empty-link {
  background: transparent;
  border: none;
  padding: 4px 6px;
  font: inherit;
  font-size: 14px;
  font-weight: 600;
  color: var(--accent);
  text-decoration: underline;
  cursor: pointer;
  border-radius: 6px;
}
.guitars-empty-link:hover { color: var(--accent-strong); background: rgba(255, 184, 74, 0.08); }

/* --- Detail mode --- */
.guitars-detail-pane {
  display: grid;
  grid-template-columns: 200px minmax(0, 1fr);
  gap: 18px;
}
.guitars-sidebar {
  display: flex;
  flex-direction: column;
  gap: 8px;
  min-width: 0;
}
.guitars-back-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  height: 32px;
  padding: 0 10px;
  background: transparent;
  border: 1px solid var(--border);
  color: var(--fg-dim);
  border-radius: 8px;
  font: inherit;
  font-size: 12px;
  font-weight: 500;
  cursor: pointer;
  transition: background 140ms ease, color 140ms ease, border-color 140ms ease;
}
.guitars-back-btn:hover { background: var(--bg-elev-2); color: var(--fg); }
.guitars-sidebar-list {
  list-style: none;
  margin: 0;
  padding: 4px 0;
  display: flex;
  flex-direction: column;
  gap: 6px;
  overflow-y: auto;
  max-height: calc(100vh - 220px);
}
.guitar-mini {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 6px 8px;
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: 10px;
  cursor: pointer;
  min-width: 0;
  transition: background 140ms ease, border-color 140ms ease;
}
.guitar-mini:hover { background: var(--bg-elev-2); }
.guitar-mini.is-active {
  border-color: rgba(255, 210, 117, 0.55);
  background: rgba(255, 184, 74, 0.12);
}
.guitar-mini-thumb {
  width: 36px;
  height: 36px;
  border-radius: 6px;
  object-fit: cover;
  background: var(--bg-elev-2);
  flex: 0 0 auto;
  display: block;
}
.guitar-mini-thumb-empty { background: var(--bg-elev-2); }
.guitar-mini-name {
  font-size: 13px;
  font-weight: 500;
  color: var(--fg);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.guitars-editor {
  display: flex;
  flex-direction: column;
  min-width: 0;
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: 14px;
  overflow: hidden;
}
.guitars-header {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  border-bottom: 1px solid var(--border);
}
.guitars-nickname {
  flex: 1 1 auto;
  min-width: 0;
  background: transparent;
  border: none;
  outline: none;
  font: inherit;
  color: var(--fg);
  font-size: 18px;
  font-weight: 600;
  letter-spacing: -0.2px;
  padding: 6px 4px;
  border-radius: 6px;
}
.guitars-nickname::placeholder { color: var(--fg-mute); }
.guitars-nickname:focus { background: var(--bg-elev-2); }
.guitars-delete {
  width: 36px;
  height: 36px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: none;
  color: var(--fg-mute);
  border-radius: 8px;
  cursor: pointer;
  transition: background 140ms ease, color 140ms ease;
}
.guitars-delete:hover { background: rgba(255, 90, 90, 0.12); color: #ff8080; }

/* Gallery */
.guitars-gallery {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 14px 18px 4px;
}
.guitars-photo-main {
  width: 100%;
  aspect-ratio: 16 / 9;
  background: var(--bg-elev-2);
  border-radius: 12px;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}
.guitar-photo-large {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
  display: block;
}
.guitar-photo-empty-main {
  color: var(--fg-mute);
  font-size: 13px;
  padding: 24px;
  text-align: center;
}
.guitars-photo-thumbs {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  align-items: center;
}
.guitar-thumb {
  position: relative;
  width: 56px;
  height: 56px;
  border-radius: 8px;
  overflow: hidden;
  cursor: pointer;
  border: 2px solid transparent;
  transition: border-color 140ms ease;
}
.guitar-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.guitar-thumb.is-active { border-color: var(--accent); }
.guitar-thumb-remove {
  position: absolute;
  top: 2px;
  right: 2px;
  width: 18px;
  height: 18px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: rgba(0, 0, 0, 0.55);
  color: #fff;
  border: none;
  cursor: pointer;
  opacity: 0;
  transition: opacity 140ms ease;
}
.guitar-thumb:hover .guitar-thumb-remove { opacity: 1; }
.guitars-photo-add {
  width: 56px;
  height: 56px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-elev-2);
  border: 2px dashed var(--border-dashed);
  border-radius: 8px;
  color: var(--fg-mute);
  cursor: pointer;
  transition: background 140ms ease, color 140ms ease, border-color 140ms ease;
}
.guitars-photo-add:hover {
  background: var(--bg-elev);
  color: var(--accent);
  border-color: rgba(255, 184, 74, 0.45);
}

/* Spec form */
.g-form {
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding: 12px 18px 22px;
}
.g-section {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding-top: 10px;
  border-top: 1px solid var(--border);
}
.g-section:first-of-type { border-top: 0; padding-top: 0; }
.g-section-title {
  margin: 0;
  font-size: 11px;
  font-weight: 700;
  color: var(--fg-mute);
  text-transform: uppercase;
  letter-spacing: 0.6px;
}
.g-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}
@media (max-width: 720px) {
  .g-row { grid-template-columns: 1fr; }
}
.g-field {
  display: flex;
  flex-direction: column;
  gap: 4px;
  min-width: 0;
}
.g-field-full { grid-column: 1 / -1; }
.g-label {
  font-size: 11px;
  font-weight: 600;
  color: var(--fg-mute);
  text-transform: uppercase;
  letter-spacing: 0.6px;
}
.g-field input,
.g-form textarea {
  background: var(--bg-elev-2);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--fg);
  font: inherit;
  font-size: 14px;
  padding: 8px 10px;
  outline: none;
  transition: border-color 140ms ease;
}
.g-field input:focus,
.g-form textarea:focus { border-color: rgba(255, 184, 74, 0.45); }
.g-form textarea {
  resize: vertical;
  min-height: 80px;
  line-height: 1.5;
  font-family: inherit;
}

/* Responsive: mobile collapses sidebar */
@media (max-width: 720px) {
  .guitars-detail-pane { grid-template-columns: 1fr; }
  .guitars-sidebar { display: none; }
}