/* ==== tokens ==== */
:root {
  --bg: #688BFF;
  --card: #B5C7FF;
  --btn: #5B79DE;
  --soft: #9CADE4;
  --ink: #1c2547;
  --ink-soft: #41508a;

  --panel: #dce5ff;
  --panel-deep: #c9d6ff;
  --line: rgba(28, 37, 71, 0.14);
  --line-hard: rgba(28, 37, 71, 0.28);

  --wave: #5B79DE;
  --wave-played: #1c2547;
  --grid-bar: rgba(28, 37, 71, 0.45);
  --grid-beat: rgba(28, 37, 71, 0.22);
  --grid-sub: rgba(28, 37, 71, 0.09);
  --sel: rgba(28, 37, 71, 0.13);
  --sel-edge: #1c2547;
  --head: #ff5c8a;

  --radius: 14px;
  --radius-sm: 9px;
  --shadow: 0 2px 0 var(--ink-soft), 0 6px 18px rgba(28, 37, 71, 0.22);
  --shadow-sm: 0 2px 0 var(--ink-soft);

  --mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
}

* { box-sizing: border-box; }

/* Several elements below get an explicit display (grid, flex) and are toggled with
   the hidden attribute. The UA rule [hidden]{display:none} is only class-specificity,
   so a later class rule beats it and hidden silently stops working. Force it. */
[hidden] { display: none !important; }

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

body {
  background: var(--bg);
  background-image:
    radial-gradient(circle at 12% 0%, rgba(255,255,255,0.22), transparent 45%),
    radial-gradient(circle at 88% 8%, rgba(255,255,255,0.14), transparent 40%);
  background-attachment: fixed;
  color: var(--ink);
  font-family: "Fredoka", system-ui, sans-serif;
  font-weight: 500;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3 { margin: 0; font-weight: 600; letter-spacing: -0.01em; }
h2 { font-size: 22px; }
h3 { font-size: 15px; }

.mono { font-family: var(--mono); font-weight: 600; }
.muted { color: var(--ink-soft); font-size: 13px; line-height: 1.45; margin: 0; }
.hint { color: var(--ink-soft); font-weight: 400; font-size: 12px; margin-left: 6px; }

kbd {
  font-family: var(--mono);
  font-size: 10px;
  background: var(--panel-deep);
  border: 1px solid var(--line-hard);
  border-bottom-width: 2px;
  border-radius: 5px;
  padding: 1px 5px;
  color: var(--ink);
}

/* ==== controls ==== */
.btn {
  font-family: inherit;
  font-weight: 600;
  font-size: 13px;
  color: #fff;
  background: var(--btn);
  border: 1px solid var(--ink-soft);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-sm);
  padding: 7px 13px;
  cursor: pointer;
  transition: transform .06s ease, filter .12s ease;
  white-space: nowrap;
}
.btn:hover { filter: brightness(1.08); }
.btn:active { transform: translateY(2px); box-shadow: none; }
.btn:focus-visible { outline: 3px solid var(--ink); outline-offset: 2px; }
.btn:disabled { opacity: .5; cursor: not-allowed; transform: none; }

.btn-primary { background: var(--ink); }
.btn-ghost { background: var(--soft); color: var(--ink); }
.btn-sq { padding: 7px 10px; min-width: 34px; }
.btn-play { min-width: 82px; }

.btn.toggle { background: var(--soft); color: var(--ink); }
.btn.toggle.on { background: var(--ink); color: #fff; }

input, select {
  font-family: inherit;
  font-weight: 500;
  font-size: 13px;
  color: var(--ink);
  background: #fff;
  border: 1px solid var(--ink-soft);
  border-radius: var(--radius-sm);
  padding: 7px 10px;
  min-width: 0;
}
input:focus, select:focus { outline: 3px solid var(--ink); outline-offset: 1px; }
input[type=range] { padding: 0; border: none; background: none; accent-color: var(--ink); width: 100%; }
input[type=number] { font-family: var(--mono); font-weight: 600; }

.field { display: flex; flex-direction: column; gap: 5px; min-width: 0; }
.field > span { font-size: 11px; text-transform: uppercase; letter-spacing: .06em; color: var(--ink-soft); font-weight: 600; }
.row { display: flex; gap: 6px; align-items: center; }
.row > input { flex: 1; }

.card {
  background: var(--card);
  border: 1px solid var(--ink-soft);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 14px;
}

/* ==== gate ==== */
.gate {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px;
}
.gate-card {
  background: var(--card);
  border: 1px solid var(--ink-soft);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 28px;
  width: 320px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  text-align: center;
}
.gate-mark { font-size: 30px; }
.gate-card h1 { font-size: 30px; font-weight: 700; }
.gate-sub { color: var(--ink-soft); font-size: 13px; margin: 0 0 4px; }
.gate-err, .empty-err { color: #8c1030; font-size: 13px; min-height: 18px; }

/* ==== topbar ==== */
.topbar {
  position: sticky;
  top: 0;
  z-index: 30;
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 12px 18px;
  background: var(--card);
  border-bottom: 1px solid var(--ink-soft);
  box-shadow: 0 3px 0 rgba(28, 37, 71, .18);
}
.brand { font-weight: 700; font-size: 20px; display: flex; align-items: center; gap: 7px; }
.brand-mark {
  display: grid; place-items: center;
  width: 28px; height: 28px;
  background: var(--ink); color: #fff;
  border-radius: 8px; font-size: 14px;
}
.topbar-mid { flex: 1; display: flex; align-items: center; gap: 10px; min-width: 0; }
.project-name {
  flex: 1;
  max-width: 380px;
  font-weight: 600;
  background: var(--panel);
}
.save-state { font-size: 12px; color: var(--ink-soft); white-space: nowrap; }
.save-state.dirty { color: #8c1030; }
.topbar-right { display: flex; gap: 8px; }

/* ==== layout ==== */
.editor { padding: 18px; max-width: 1360px; margin: 0 auto; }
#bench { display: flex; flex-direction: column; gap: 14px; }
.cols { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }

/* ==== empty ==== */
.empty { display: flex; flex-direction: column; gap: 16px; padding-top: 24px; }
.empty h2 { text-align: center; }
.load-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.load-card { display: flex; flex-direction: column; gap: 10px; }
.load-card.over { background: var(--panel); border-style: dashed; }
.drop-hint { font-size: 12px; color: var(--ink-soft); text-align: center; }
.empty-err { text-align: center; }

/* ==== canvases ==== */
.overview-card, .wave-card { padding: 8px; }
#overview { display: block; width: 100%; height: 68px; border-radius: var(--radius-sm); cursor: pointer; }
#wave { display: block; width: 100%; height: 300px; border-radius: var(--radius-sm); cursor: crosshair; touch-action: none; }
.wave-legend {
  display: flex; flex-wrap: wrap; gap: 12px;
  padding: 8px 4px 2px;
  font-size: 11px; color: var(--ink-soft);
}
.wave-legend span { display: flex; align-items: center; gap: 4px; }

/* ==== transport ==== */
.transport { display: flex; flex-wrap: wrap; gap: 18px; align-items: flex-end; }
.tp-group { display: flex; gap: 10px; align-items: flex-end; flex-wrap: wrap; }
.tp-group:nth-child(4) { flex: 1; min-width: 240px; }
.tp-group:nth-child(4) .field { flex: 1; min-width: 110px; }
.sel-readout { display: flex; align-items: center; gap: 6px; }
.sel-readout input { width: 96px; text-align: center; }
.sel-readout em { font-size: 11px; color: var(--ink-soft); font-style: normal; }
.sel-meta { font-size: 11px; color: var(--ink-soft); font-family: var(--mono); align-self: flex-end; padding-bottom: 8px; }

/* ==== grid + chop ==== */
.grid-card, .chop-card { display: flex; flex-direction: column; gap: 12px; }
.grid-row { display: flex; gap: 10px; align-items: flex-end; flex-wrap: wrap; }
.grid-row .field { flex: 1; }
.grid-card input[type=number] { width: 100%; }
.analysis {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 10px 12px;
  font-family: var(--mono);
  font-size: 12px;
  line-height: 1.6;
  color: var(--ink-soft);
  white-space: pre-wrap;
}

/* ==== pads ==== */
.pads-card { display: flex; flex-direction: column; gap: 10px; }
.pads { display: grid; grid-template-columns: repeat(8, 1fr); gap: 8px; }
.pad {
  aspect-ratio: 1.5 / 1;
  border-radius: var(--radius-sm);
  border: 1px solid var(--ink-soft);
  box-shadow: var(--shadow-sm);
  background: var(--soft);
  color: var(--ink);
  font-family: inherit;
  font-weight: 600;
  font-size: 11px;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 7px;
  text-align: left;
  overflow: hidden;
  transition: transform .05s ease;
}
.pad:active, .pad.hit { transform: translateY(2px); box-shadow: none; filter: brightness(1.12); }
.pad.empty { background: var(--panel-deep); color: var(--ink-soft); opacity: .6; cursor: default; }
.pad-key { font-family: var(--mono); font-size: 10px; opacity: .7; }
.pad-name { line-height: 1.15; word-break: break-word; }

/* ==== slices table ==== */
.slices-card { display: flex; flex-direction: column; gap: 12px; }
.slices-head { display: flex; justify-content: space-between; align-items: center; gap: 12px; flex-wrap: wrap; }
.slices-head .row { flex-wrap: wrap; }
.table-wrap { max-height: 340px; overflow: auto; border-radius: var(--radius-sm); border: 1px solid var(--line); background: var(--panel); }
table.slices { width: 100%; border-collapse: collapse; font-size: 13px; }
table.slices th {
  position: sticky; top: 0;
  background: var(--panel-deep);
  text-align: left;
  font-size: 11px; text-transform: uppercase; letter-spacing: .06em;
  color: var(--ink-soft);
  padding: 8px 10px;
  border-bottom: 1px solid var(--line-hard);
}
table.slices td { padding: 5px 10px; border-bottom: 1px solid var(--line); vertical-align: middle; }
table.slices tr:last-child td { border-bottom: none; }
table.slices tr.active td { background: rgba(28, 37, 71, .08); }
.c-idx { width: 42px; }
.c-t { width: 104px; }
.c-bars { width: 92px; }
.c-act { width: 130px; }
.swatch { display: inline-block; width: 10px; height: 10px; border-radius: 3px; margin-right: 6px; border: 1px solid var(--line-hard); }
table.slices input { padding: 4px 7px; width: 100%; background: #fff; }
table.slices td.c-t input { font-family: var(--mono); text-align: right; }
.slices-empty { padding: 22px; text-align: center; color: var(--ink-soft); font-size: 13px; }

/* ==== library ==== */
.library {
  position: fixed; top: 0; right: 0; bottom: 0;
  width: min(420px, 92vw);
  z-index: 50;
  background: var(--card);
  border-left: 1px solid var(--ink-soft);
  box-shadow: -12px 0 30px rgba(28, 37, 71, .3);
  padding: 16px;
  overflow-y: auto;
  display: flex; flex-direction: column; gap: 18px;
}
.lib-head { display: flex; justify-content: space-between; align-items: center; }
.lib-section { display: flex; flex-direction: column; gap: 8px; }
.lib-list { display: flex; flex-direction: column; gap: 7px; }
.lib-item {
  display: flex; align-items: center; gap: 8px;
  background: var(--panel);
  border: 1px solid var(--line-hard);
  border-radius: var(--radius-sm);
  padding: 9px 10px;
}
.lib-item.stem { margin-left: 16px; background: var(--panel-deep); }
.lib-item .lib-open { flex: 1; text-align: left; background: none; border: none; padding: 0; font: inherit; color: var(--ink); cursor: pointer; min-width: 0; }
.lib-item .lib-open b { display: block; font-weight: 600; font-size: 13px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.lib-item .lib-open small { color: var(--ink-soft); font-size: 11px; font-family: var(--mono); }
.lib-empty { color: var(--ink-soft); font-size: 12px; padding: 6px 2px; }
.scrim { position: fixed; inset: 0; z-index: 40; background: rgba(28, 37, 71, .38); }

/* ==== toast + busy ==== */
.toast {
  position: fixed; left: 50%; bottom: 24px; transform: translateX(-50%);
  z-index: 80;
  background: var(--ink); color: #fff;
  border-radius: var(--radius-sm);
  padding: 10px 16px;
  font-size: 13px; font-weight: 600;
  box-shadow: 0 8px 22px rgba(28, 37, 71, .4);
}
.busy { position: fixed; inset: 0; z-index: 90; display: grid; place-items: center; background: rgba(28, 37, 71, .45); }
.busy-card {
  background: var(--card);
  border: 1px solid var(--ink-soft);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 26px 34px;
  display: flex; flex-direction: column; align-items: center; gap: 12px;
  min-width: 260px;
}
.busy-sub { font-size: 12px; color: var(--ink-soft); text-align: center; max-width: 260px; }
.spinner {
  width: 26px; height: 26px;
  border: 3px solid var(--soft);
  border-top-color: var(--ink);
  border-radius: 50%;
  animation: spin .7s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

@media (prefers-reduced-motion: reduce) {
  * { animation-duration: .01ms !important; transition-duration: .01ms !important; }
}

@media (max-width: 940px) {
  .cols, .load-grid { grid-template-columns: 1fr; }
  .pads { grid-template-columns: repeat(4, 1fr); }
  .topbar { flex-wrap: wrap; }
  .topbar-mid { order: 3; width: 100%; }
  #wave { height: 220px; }
}

/* ==== pitch, reverse, bake ==== */
.pitch-mode { font-style: normal; display: inline-flex; align-items: center; gap: 3px; margin-left: 6px; }
.pitch-mode input { width: auto; min-width: 0; padding: 0; margin: 0; accent-color: var(--ink); }
.pitch-mode label { font-size: 10px; text-transform: none; letter-spacing: 0; cursor: pointer; }
.c-rev { width: 52px; }
.c-rev .btn { padding: 4px 8px; min-width: 0; }
.bake {
  display: inline-flex; align-items: center; gap: 5px;
  font-size: 12px; color: var(--ink-soft); font-weight: 600;
  cursor: pointer; white-space: nowrap;
}
.bake input { width: auto; min-width: 0; padding: 0; accent-color: var(--ink); }