/* ── Gitaarstudio ─────────────────────────────────────────────
   Palet: ebony #241b15 · rosewood #33261d · walnut #4b382b
          brass #d9a441 · parchment #f1e7d7 · clay #c96a4e
   Type:  Fraunces (display) · Albert Sans (UI) · Spline Sans Mono (akkoorden)
──────────────────────────────────────────────────────────────── */
:root {
  --ebony: #241b15;
  --ebony-deep: #1b140f;
  --rosewood: #33261d;
  --walnut: #4b382b;
  --walnut-soft: #5d4736;
  --brass: #d9a441;
  --brass-soft: #e8c477;
  --parchment: #f1e7d7;
  --parchment-dim: #c9bba6;
  --clay: #c96a4e;
  --radius: 14px;
  --font-ui: "Albert Sans", system-ui, sans-serif;
  --font-display: "Fraunces", Georgia, serif;
  --font-chord: "Spline Sans Mono", ui-monospace, monospace;
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background:
    radial-gradient(1200px 500px at 50% -10%, #3a2b20 0%, transparent 60%),
    var(--ebony);
  color: var(--parchment);
  font-family: var(--font-ui);
  font-size: 16px;
  line-height: 1.4;
}

button { font-family: inherit; cursor: pointer; }
input, select { font-family: inherit; }

/* ── Topbar ── */
.topbar {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
  padding: 14px 18px;
  border-bottom: 1px solid var(--walnut);
}
.wordmark {
  font-family: var(--font-display);
  font-style: italic;
  font-weight: 500;
  font-size: 1.45rem;
  color: var(--brass-soft);
  letter-spacing: .01em;
}
.wordmark span { color: var(--parchment); font-style: normal; font-weight: 400; }
.song-title {
  flex: 1;
  min-width: 140px;
  background: transparent;
  border: 1px solid transparent;
  border-radius: 8px;
  color: var(--parchment);
  font-family: var(--font-display);
  font-size: 1.1rem;
  padding: 6px 10px;
}
.song-title:hover { border-color: var(--walnut); }
.song-title:focus { outline: none; border-color: var(--brass); background: var(--ebony-deep); }
.topbar-actions { display: flex; gap: 8px; }

/* ── Knoppen ── */
.btn {
  border: 1px solid var(--walnut-soft);
  background: var(--rosewood);
  color: var(--parchment);
  border-radius: 10px;
  padding: 9px 16px;
  font-size: .95rem;
  font-weight: 600;
  transition: background .15s, border-color .15s;
}
.btn:hover { border-color: var(--brass); }
.btn-brass {
  background: var(--brass);
  border-color: var(--brass);
  color: var(--ebony-deep);
}
.btn-brass:hover { background: var(--brass-soft); }
.btn-quiet { background: transparent; }
.btn:focus-visible, .pad:focus-visible, .seg-btn:focus-visible, .chip:focus-visible {
  outline: 2px solid var(--brass-soft);
  outline-offset: 2px;
}

/* ── Panelen ── */
main {
  max-width: 900px;
  margin: 0 auto;
  padding: 18px 14px 60px;
  display: grid;
  gap: 18px;
}
.panel {
  background: var(--rosewood);
  border: 1px solid var(--walnut);
  border-radius: var(--radius);
  padding: 16px;
}
.panel-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 14px;
}
.panel h2 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.15rem;
  color: var(--brass-soft);
}
.hint { color: var(--parchment-dim); font-size: .85rem; margin: 12px 2px 0; }
.hint strong { color: var(--brass-soft); }

/* ── Toonsoortbediening ── */
.key-controls { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; }
select, input[type="number"] {
  background: var(--ebony-deep);
  color: var(--parchment);
  border: 1px solid var(--walnut-soft);
  border-radius: 8px;
  padding: 8px 10px;
  font-size: .95rem;
}
.seg {
  display: inline-flex;
  border: 1px solid var(--walnut-soft);
  border-radius: 9px;
  overflow: hidden;
}
.seg-btn {
  background: transparent;
  border: none;
  color: var(--parchment-dim);
  padding: 8px 14px;
  font-size: .9rem;
  font-weight: 600;
}
.seg-btn.is-active { background: var(--brass); color: var(--ebony-deep); }

/* ── Snaren-signatuur + pads ── */
.strings-stage { position: relative; padding: 10px 0; }
.strings {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  justify-content: space-evenly;
  pointer-events: none;
}
.strings i {
  display: block;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--brass) 12%, var(--brass) 88%, transparent);
  opacity: .28;
  transition: opacity .2s;
}
.strings.is-ringing i { opacity: .6; animation: shimmer .5s ease-out; }
@keyframes shimmer {
  0%   { transform: scaleY(2.5); opacity: .9; }
  100% { transform: scaleY(1); }
}

.pad-grid {
  position: relative;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(96px, 1fr));
  gap: 10px;
}
.pad {
  position: relative;
  border: 1px solid var(--walnut-soft);
  border-radius: 12px;
  background: linear-gradient(180deg, #3d2e23, #2c211a);
  color: var(--parchment);
  padding: 16px 8px 12px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  transition: transform .08s, border-color .15s, box-shadow .15s;
  touch-action: manipulation;
  min-height: 84px;
}
.pad:active, .pad:has(.pad-hit:active) { transform: scale(.96); }
.pad-hit {
  position: absolute;
  inset: 0;
  background: transparent;
  border: none;
  border-radius: 12px;
  cursor: pointer;
}
.pad:has(.pad-hit:focus-visible) { outline: 2px solid var(--brass-soft); outline-offset: 2px; }
.pad-label, .pad-sub, .pad-diagram { pointer-events: none; position: relative; }
.chord-svg { display: block; color: var(--parchment-dim); }
.pad-diagram .chord-svg { width: 58px; }
.slot-diagram .chord-svg { width: 48px; }
.pad.is-playing {
  border-color: var(--brass);
  box-shadow: 0 0 0 1px var(--brass), 0 0 18px rgba(217, 164, 65, .35);
}
.pad-label {
  font-family: var(--font-chord);
  font-weight: 600;
  font-size: 1.25rem;
  letter-spacing: .01em;
}
.pad-sub {
  font-size: .72rem;
  color: var(--parchment-dim);
  text-transform: uppercase;
  letter-spacing: .12em;
}
.pad-add {
  position: absolute;
  z-index: 2;
  top: 5px;
  right: 5px;
  width: 26px;
  height: 26px;
  border-radius: 8px;
  border: 1px solid var(--walnut-soft);
  background: var(--ebony-deep);
  color: var(--brass-soft);
  font-size: 1rem;
  line-height: 1;
  display: grid;
  place-items: center;
}
.pad-add:hover { border-color: var(--brass); }

/* ── Vrije kiezer ── */
.chip-row { display: flex; flex-wrap: wrap; gap: 7px; margin-bottom: 10px; }
.chip {
  border: 1px solid var(--walnut-soft);
  background: var(--ebony-deep);
  color: var(--parchment);
  border-radius: 999px;
  padding: 7px 13px;
  font-family: var(--font-chord);
  font-size: .9rem;
  font-weight: 500;
}
.chip.is-active { background: var(--brass); border-color: var(--brass); color: var(--ebony-deep); font-weight: 600; }
.free-actions { display: flex; align-items: center; gap: 14px; margin-top: 4px; }
.pad-free { min-width: 130px; min-height: 76px; }

/* ── Schema ── */
.transport { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
.btn-play { min-width: 96px; }
.bpm-label, .check-label {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: .88rem;
  color: var(--parchment-dim);
}
.bpm-label input { width: 64px; }
.check-label input { accent-color: var(--brass); width: 16px; height: 16px; }

.slots { display: flex; flex-wrap: wrap; gap: 10px; }
.slot {
  border: 1px solid var(--walnut-soft);
  border-radius: 12px;
  background: var(--ebony-deep);
  padding: 10px 12px 8px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  min-width: 92px;
  transition: border-color .1s, box-shadow .1s;
}
.slot.is-current {
  border-color: var(--brass);
  box-shadow: 0 0 12px rgba(217, 164, 65, .3);
}
.slot-chord { font-family: var(--font-chord); font-weight: 600; font-size: 1.1rem; }
.slot-diagram { pointer-events: none; }
.slot-beats { display: flex; align-items: center; gap: 6px; }
.slot-beats button {
  width: 24px; height: 24px;
  border-radius: 7px;
  border: 1px solid var(--walnut-soft);
  background: transparent;
  color: var(--parchment);
  line-height: 1;
}
.slot-beats span { font-size: .82rem; color: var(--parchment-dim); min-width: 42px; text-align: center; }
.slot-del {
  border: none;
  background: transparent;
  color: var(--parchment-dim);
  font-size: .78rem;
}
.slot-del:hover { color: var(--clay); }

/* ── Neurie ── */
.hum-controls { display: flex; align-items: center; gap: 14px; flex-wrap: wrap; }
.hum-live {
  display: flex;
  align-items: center;
  gap: 12px;
  background: var(--ebony-deep);
  border: 1px solid var(--walnut-soft);
  border-radius: 12px 12px 0 0;
  padding: 12px 16px;
}
.hum-status { color: var(--parchment-dim); font-size: .9rem; }
.hum-canvas {
  display: block;
  width: 100%;
  height: 170px;
  background: var(--ebony-deep);
  border: 1px solid var(--walnut-soft);
  border-radius: 0 0 12px 12px;
  margin-bottom: 12px;
}
.hum-canvas:not(.is-attached) { border-radius: 12px; }
.hum-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--clay);
  animation: humpulse 1.1s ease-in-out infinite;
}
@keyframes humpulse {
  0%, 100% { transform: scale(1); opacity: 1; }
  50% { transform: scale(1.35); opacity: .55; }
}
.hum-note {
  font-family: var(--font-chord);
  font-weight: 600;
  font-size: 1.3rem;
  min-width: 56px;
  color: var(--brass-soft);
}
.hum-time { margin-left: auto; color: var(--parchment-dim); font-variant-numeric: tabular-nums; }
.hum-result {
  background: var(--ebony-deep);
  border: 1px solid var(--brass);
  border-radius: 12px;
  padding: 14px 16px;
}
.hum-result p { margin: 0 0 12px; }
.hum-result .hint { margin: 0 0 12px; }
.hum-result strong { font-family: var(--font-chord); color: var(--brass-soft); }
.hum-bars { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 4px; }
.hum-bar {
  border: 1px solid var(--walnut-soft);
  background: var(--rosewood);
  color: var(--parchment);
  border-radius: 10px;
  padding: 8px 12px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  min-width: 64px;
}
.hum-bar:hover { border-color: var(--brass); }
.hum-bar-chord { font-family: var(--font-chord); font-weight: 600; font-size: 1.05rem; }
.hum-bar-num { font-size: .68rem; color: var(--parchment-dim); text-transform: uppercase; letter-spacing: .1em; }
.hum-bar.is-alt .hum-bar-chord { color: var(--brass-soft); }
.hum-actions { display: flex; gap: 10px; flex-wrap: wrap; }
.hum-swap { padding: 5px 12px; font-size: .82rem; margin-left: 8px; vertical-align: middle; }
@media (prefers-reduced-motion: reduce) { .hum-dot { animation: none; } }

/* ── Dialoog ── */
.overlay {
  position: fixed;
  inset: 0;
  background: rgba(20, 14, 10, .7);
  display: grid;
  place-items: center;
  padding: 16px;
  z-index: 20;
}
.dialog {
  background: var(--rosewood);
  border: 1px solid var(--walnut);
  border-radius: var(--radius);
  width: min(440px, 100%);
  max-height: 80vh;
  overflow: auto;
  padding: 18px;
}
.dialog-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 14px; }
.dialog h2 { margin: 0; font-family: var(--font-display); color: var(--brass-soft); font-size: 1.15rem; }
.song-list { list-style: none; margin: 14px 0 0; padding: 0; display: grid; gap: 8px; }
.song-list li {
  display: flex;
  align-items: center;
  gap: 10px;
  border: 1px solid var(--walnut-soft);
  border-radius: 10px;
  padding: 10px 12px;
  background: var(--ebony-deep);
}
.song-open { flex: 1; text-align: left; background: none; border: none; color: var(--parchment); font-size: .98rem; padding: 0; }
.song-open small { display: block; color: var(--parchment-dim); font-size: .78rem; margin-top: 2px; }
.song-open:hover { color: var(--brass-soft); }

/* ── Akkoordenboek ── */
.dialog-book { width: min(720px, 100%); }
.book-row { margin-bottom: 18px; }
.book-title {
  margin: 0 0 8px;
  font-family: var(--font-chord);
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--brass-soft);
}
.book-cards { display: flex; flex-wrap: wrap; gap: 10px; }
.book-card {
  border: 1px solid var(--walnut-soft);
  background: var(--ebony-deep);
  border-radius: 10px;
  padding: 8px 10px 6px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 3px;
  color: var(--parchment);
}
.book-card:hover { border-color: var(--brass); }
.book-card .chord-svg { width: 72px; }
.book-card span { font-size: .7rem; color: var(--parchment-dim); text-transform: uppercase; letter-spacing: .08em; }

/* ── Toast & loader ── */
.toast, .loader {
  position: fixed;
  left: 50%;
  bottom: 22px;
  transform: translateX(-50%);
  background: var(--ebony-deep);
  border: 1px solid var(--brass);
  color: var(--parchment);
  border-radius: 10px;
  padding: 10px 18px;
  font-size: .92rem;
  z-index: 30;
}

@media (prefers-reduced-motion: reduce) {
  .strings.is-ringing i { animation: none; }
  .pad, .btn { transition: none; }
}

@media (max-width: 560px) {
  .pad-grid { grid-template-columns: repeat(auto-fill, minmax(80px, 1fr)); }
  .topbar { padding: 12px; }
  .panel { padding: 13px; }
}