/* Oscine theme: dark, flat, DAW-grade density.

   Design tokens live in styles/tokens/ (the Oscine design system).
   Surfaces, the cardinal accent + data-accent themes, type, spacing,
   radius, motion, and the self-hosted webfonts are all defined there;
   this file consumes them. @import must precede every other rule. */

@import url('./tokens/fonts.css');
@import url('./tokens/colors.css');
@import url('./tokens/typography.css');
@import url('./tokens/spacing.css');

* { box-sizing: border-box; margin: 0; padding: 0; }

html, body {
  height: 100%;
  background: var(--bg-0);
  color: var(--text);
  font-family: var(--font-ui);
  font-size: 12px;
  overflow: hidden;
  -webkit-font-smoothing: antialiased;
  user-select: none;
}

#app {
  display: grid;
  grid-template-rows: 50px minmax(0, 1fr) auto auto;
  height: 100vh;
}

/* ---------- layout regions ---------- */

header.transportbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 0 12px;
  background: var(--bg-1);
  border-bottom: 1px solid var(--line);
}

.body {
  display: grid;
  grid-template-columns: 218px minmax(0, 1fr) 268px;
  min-height: 0;
}

.panel {
  background: var(--bg-1);
  border-right: 1px solid var(--line);
  overflow-y: auto;
  min-height: 0;
}

.insp-panel {
  border-right: none;
  border-left: 1px solid var(--line);
  padding-bottom: 16px;
}

.center {
  display: flex;
  flex-direction: column;
  min-width: 0;
  min-height: 0;
  background: var(--bg-0);
}

.editor-bar {
  display: flex;
  align-items: center;
  gap: 10px;
  height: 34px;
  padding: 0 10px;
  background: var(--bg-1);
  border-bottom: 1px solid var(--line);
  flex: none;
}

.editor-title { font-weight: 600; letter-spacing: 0.02em; }
.spacer { flex: 1; }
.snap-ctl { display: flex; align-items: center; gap: 6px; }
.snap-ctl .knob-label { margin: 0; }

.editor-host {
  flex: 1;
  min-height: 0;
  position: relative;
  display: flex;
}

.editor-empty {
  margin: auto;
  color: var(--dim);
  font-size: 13px;
}

footer.keysbar {
  background: var(--bg-1);
  border-top: 1px solid var(--line);
  padding: 8px 12px;
}
footer.keysbar.hidden { display: none; }

/* ---------- shared bits ---------- */

.panel-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 10px 8px;
}

.panel-title {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--dim);
}

.empty-hint {
  padding: 14px 12px;
  color: var(--dim);
  line-height: 1.5;
}

.btn {
  background: var(--bg-2);
  color: var(--text);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  font: inherit;
  padding: 5px 10px;
  cursor: pointer;
  transition: background 0.12s, border-color 0.12s;
}
.btn:hover { background: var(--bg-3); border-color: var(--line-strong); }
.btn.accent { background: var(--accent-soft); border-color: var(--accent); color: var(--accent); }
.btn.mini { padding: 2px 6px; font-size: 10px; border-radius: 5px; }
.btn.icon-btn { padding: 5px 8px; font-size: 13px; }
.btn.on-warn { background: var(--warn-soft); border-color: var(--warn); color: var(--warn); }
.btn.on-accent { background: var(--accent-soft); border-color: var(--accent); color: var(--accent); }
.btn.del.confirm { background: var(--warn); color: #fff; border-color: var(--warn); }
.btn.tgl.on { background: var(--accent-soft); border-color: var(--accent); color: var(--accent); }

.select {
  background: var(--bg-2);
  color: var(--text);
  border: 1px solid var(--line);
  border-radius: 6px;
  font: inherit;
  font-size: 11px;
  padding: 3px 6px;
  cursor: pointer;
}
.select-wrap { display: flex; flex-direction: column; align-items: center; gap: 2px; }

input.song-name, input.name-edit, input.numdrag-edit {
  background: var(--bg-2);
  border: 1px solid var(--line);
  border-radius: 6px;
  color: var(--text);
  font: inherit;
  padding: 4px 8px;
  outline: none;
}
input.song-name { width: 130px; text-align: center; }
input.song-name:focus, input.name-edit:focus { border-color: var(--accent); }
input.numdrag-edit { width: 56px; padding: 0 4px; text-align: center; }

/* ---------- transport bar ---------- */

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

.logo {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-right: 4px;
}
/* Cardinal mark, painted by background-color through a mask so it
   retints with the active accent (data-accent). Sized to the mark's
   ~2.34:1 aspect. */
.logo-mark {
  flex: none;
  width: 52px;
  height: 22px;
  background-color: var(--accent);
  -webkit-mask: url('brand/oscine-mark-mono.svg') left center / contain no-repeat;
  mask: url('brand/oscine-mark-mono.svg') left center / contain no-repeat;
}
.logo-word {
  font-weight: var(--fw-black);
  letter-spacing: var(--ls-wordmark);
  font-size: var(--text-wordmark);
  color: var(--text);
}

.play-btn {
  width: 38px;
  height: 32px;
  font-size: 13px;
  display: grid;
  place-items: center;
  border-radius: 8px;
}
.play-btn.playing { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); }

.pos-readout {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--dim);
  min-width: 34px;
  text-align: center;
}

.numdrag {
  font-family: var(--font-mono);
  font-size: 13px;
  padding: 5px 9px;
  background: var(--bg-2);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  cursor: ns-resize;
  min-width: 74px;
  text-align: center;
}

.tb-label {
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--dim);
}

.slot-btn {
  width: 30px;
  height: 28px;
  font-weight: 700;
  padding: 0;
}
.slot-btn.on { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); }
.slot-btn.queued { border-color: var(--accent); color: var(--accent); animation: pulse 0.8s infinite alternate; }
@keyframes pulse { from { background: var(--bg-2); } to { background: var(--accent-soft); } }

.tb-meter {
  width: 6px;
  height: 30px;
}

/* ---------- knobs / faders / meters ---------- */

.knob {
  display: flex;
  flex-direction: column;
  align-items: center;
  width: 52px;
  cursor: ns-resize;
  touch-action: none;
}
.knob svg { width: 34px; height: 34px; display: block; }
.knob-sm { width: 46px; }
.knob-sm svg { width: 28px; height: 28px; }

.knob-track, .knob-fill {
  fill: none;
  stroke-width: 3.4;
  stroke-linecap: round;
  transform: rotate(135deg);
  transform-origin: 17px 17px;
}
.knob-track { stroke: var(--knob-track); }
.knob-fill { stroke: var(--accent); }
.knob-needle {
  stroke: var(--text);
  stroke-width: 1.7;
  stroke-linecap: round;
}
.knob.active .knob-needle { stroke: #fff; }

.knob-value {
  font-family: var(--font-mono);
  font-size: 9px;
  color: var(--dim);
  margin-top: 1px;
  pointer-events: none;
  white-space: nowrap;
}
.knob.active .knob-value { color: var(--text); }

.knob-label {
  font-size: 9px;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--dim);
  margin-top: 1px;
  pointer-events: none;
  white-space: nowrap;
}

.fader {
  width: 26px;
  height: 100%;
  min-height: 90px;
  display: flex;
  justify-content: center;
  cursor: ns-resize;
  touch-action: none;
}
.fader-track {
  position: relative;
  width: 4px;
  height: 100%;
  background: var(--knob-track);
  border-radius: 2px;
}
.fader-fill {
  position: absolute;
  bottom: 0;
  width: 100%;
  background: var(--accent);
  border-radius: 2px;
  opacity: 0.55;
}
.fader-cap {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  width: 22px;
  height: 12px;
  background: #cdd5ea;
  border-radius: 3px;
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.5);
}

.meter {
  position: relative;
  width: 6px;
  height: 100%;
  min-height: 30px;
  background: #161a26;
  border-radius: 3px;
  overflow: hidden;
}
.meter-fill {
  position: absolute;
  bottom: 0;
  width: 100%;
  height: 0%;
  background: linear-gradient(to top, var(--good), #ffd166 78%, var(--warn));
  border-radius: 3px;
}
.meter.hot::after {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: var(--warn);
}

/* ---------- track list ---------- */

.track-rows { display: flex; flex-direction: column; }

.track-row {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 10px;
  border-bottom: 1px solid var(--line-soft);
  cursor: pointer;
}
.track-row:hover { background: var(--bg-2); }
.track-row.selected { background: var(--bg-3); box-shadow: inset 2px 0 0 var(--accent); }

.led {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  flex: none;
  opacity: 0.55;
}
.led.hit { animation: ledhit 0.18s ease-out; }
@keyframes ledhit {
  0% { box-shadow: 0 0 0 4px rgba(255, 255, 255, 0.18); opacity: 1; }
  100% { box-shadow: 0 0 0 0 rgba(255, 255, 255, 0); }
}

.track-mid { flex: 1; min-width: 0; }
.track-name { font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.track-sub { font-size: 10px; color: var(--dim); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.track-ctl { display: flex; gap: 4px; flex: none; }

/* ---------- inspector ---------- */

.inspector .preset-row { flex-direction: row; gap: 8px; padding: 0 10px 4px; align-items: center; }
.inspector .preset-row .select { flex: 1; }

.insp-group { padding: 8px 10px 2px; }
.insp-group-title {
  font-size: 9px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--dim);
  border-bottom: 1px solid var(--line-soft);
  padding-bottom: 3px;
  margin-bottom: 7px;
}
.insp-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 2px;
  align-items: flex-start;
}
.insp-select { width: 78px; display: flex; justify-content: center; padding-top: 4px; }
.insp-select .select { width: 72px; }

/* ---------- mixer ---------- */

.mixer {
  background: var(--bg-1);
  border-top: 1px solid var(--line);
}
.mixer-handle {
  display: block;
  width: 100%;
  background: none;
  border: none;
  color: var(--dim);
  font: inherit;
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  padding: 4px 0 3px;
  cursor: pointer;
}
.mixer-handle:hover { color: var(--text); }

.mixer-body { display: none; }
.mixer.open .mixer-body {
  display: flex;
  gap: 6px;
  padding: 4px 10px 10px;
  overflow-x: auto;
  align-items: stretch;
}

.strip {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  background: var(--bg-2);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 7px 6px;
  width: 86px;
  flex: none;
}
.strip.selected { border-color: #38415e; }
.strip-name {
  font-size: 10px;
  font-weight: 700;
  max-width: 100%;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  cursor: pointer;
}
.strip-knobs { display: flex; gap: 0; flex-wrap: wrap; justify-content: center; }
.strip-fade {
  display: flex;
  gap: 6px;
  align-items: stretch;
  height: 110px;
}
.strip-ms { display: flex; gap: 4px; }

.master-strip { width: auto; min-width: 200px; flex-direction: row; align-items: stretch; gap: 10px; }
.master-strip > .strip-name { writing-mode: vertical-rl; transform: rotate(180deg); align-self: center; }
.master-fx { display: flex; gap: 10px; }
.fx-col { display: flex; flex-direction: column; gap: 4px; align-items: center; }

/* ---------- step grid ---------- */

.stepgrid {
  flex: 1;
  min-width: 0;
  display: flex;
  padding: 14px;
}
.sg-scroll { overflow: auto; flex: 1; }
.sg-grid {
  display: grid;
  gap: 3px;
  align-content: start;
}
.sg-corner { position: sticky; left: 0; background: var(--bg-0); z-index: 2; }
.sg-head {
  font-family: var(--font-mono);
  font-size: 9px;
  color: var(--dim);
  display: flex;
  align-items: flex-end;
  justify-content: center;
  padding-bottom: 2px;
}
.sg-head.bar { color: var(--text); }
.sg-label {
  position: sticky;
  left: 0;
  z-index: 2;
  background: var(--bg-2);
  border: 1px solid var(--line);
  border-radius: 6px;
  color: var(--text);
  font: inherit;
  font-size: 10px;
  font-weight: 600;
  text-align: left;
  padding: 0 8px;
  cursor: pointer;
  margin-right: 6px;
}
.sg-label:hover { background: var(--bg-3); }

.step {
  background: var(--bg-2);
  border: 1px solid var(--line-soft);
  border-radius: 5px;
  cursor: pointer;
  transition: background 0.06s;
}
.step.offbeat { background: #131722; }
.step.bar { border-left-color: #313a57; }
.step:hover { border-color: var(--dim); }
.step.on { border-color: transparent; background: var(--track-color, var(--accent)); }
.step.on.v1 { opacity: 0.42; }
.step.on.v2 { opacity: 0.7; }
.step.on.v3 { opacity: 1; }
.step.ph { box-shadow: inset 0 0 0 1.6px rgba(255, 255, 255, 0.75); }

/* ---------- piano roll ---------- */

.pianoroll {
  flex: 1;
  min-width: 0;
  min-height: 0;
  position: relative;
}
.pianoroll canvas { position: absolute; inset: 0; }

/* ---------- keyboard footer ---------- */

.piano { display: flex; align-items: center; gap: 12px; }
.oct-ctl { display: flex; flex-direction: column; align-items: center; gap: 3px; }
.oct-label { font-family: var(--font-mono); font-size: 11px; color: var(--dim); }

.piano-keys {
  position: relative;
  display: flex;
  height: 74px;
  flex: 1;
  max-width: 980px;
}
.pkey { touch-action: none; }
.pkey.white {
  flex: 1;
  background: var(--key-white);
  border: 1px solid var(--bg-0);
  border-radius: 0 0 4px 4px;
  position: relative;
  z-index: 1;
}
.pkey.black {
  width: 0;
  position: relative;
  z-index: 2;
}
.pkey.black::after {
  content: '';
  position: absolute;
  left: -11px;
  top: 0;
  width: 22px;
  height: 46px;
  background: var(--key-black);
  border: 1px solid var(--bg-0);
  border-radius: 0 0 3px 3px;
}
.pkey.white.pressed { background: var(--accent); }
.pkey.black.pressed::after { background: var(--accent); }
.pkey-label {
  position: absolute;
  bottom: 4px;
  left: 50%;
  transform: translateX(-50%);
  font-size: 8px;
  color: #3a4154;
  pointer-events: none;
}

.pads { display: flex; gap: 8px; }
.pad {
  width: 84px;
  height: 64px;
  background: var(--bg-2);
  border: 1px solid var(--line);
  border-radius: 9px;
  color: var(--text);
  font: inherit;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
  touch-action: none;
}
.pad.pressed { background: var(--bg-3); transform: translateY(1px); }
.pad-key { font-family: var(--font-mono); font-size: 10px; color: var(--dim); }
.pad-label { font-weight: 700; }

.src-link {
  position: fixed;
  right: 10px;
  bottom: 8px;
  z-index: 60;
  color: var(--dim);
  opacity: 0.55;
  line-height: 0;
  transition: opacity 0.15s, color 0.15s;
}
.src-link:hover { opacity: 1; color: var(--text); }

.bridge-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #3a4154;
  box-shadow: 0 0 0 2px var(--bg-2);
  transition: background 0.3s;
}
.bridge-dot.on { background: var(--good); }
/* Multi-instance: the dot grows into a small count chip. Active session
   reads as good; a background tab reads as warn so it's clear another tab
   holds the agent's focus. */
.bridge-dot.multi {
  width: auto;
  height: 14px;
  min-width: 14px;
  padding: 0 4px;
  border-radius: var(--radius-pill);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: var(--fs-micro);
  font-weight: var(--fw-bold);
  color: var(--bg-0);
}
.bridge-dot.multi.inactive { background: var(--warn); }

/* ---------- menus & toast ---------- */

.menu {
  position: fixed;
  z-index: 100;
  background: var(--bg-2);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 4px;
  min-width: 170px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.55);
}
.menu-item {
  display: block;
  width: 100%;
  text-align: left;
  background: none;
  border: none;
  color: var(--text);
  font: inherit;
  padding: 7px 10px;
  border-radius: 5px;
  cursor: pointer;
}
.menu-item:hover { background: var(--accent-soft); color: var(--accent); }

.toast {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%) translateY(8px);
  background: var(--bg-3);
  border: 1px solid var(--line);
  color: var(--text);
  padding: 9px 16px;
  border-radius: 9px;
  box-shadow: 0 8px 28px rgba(0, 0, 0, 0.5);
  opacity: 0;
  transition: opacity 0.25s, transform 0.25s;
  z-index: 200;
  pointer-events: none;
}
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }

/* ---------- scrollbars ---------- */

::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb {
  background: var(--knob-track);
  border-radius: 5px;
  border: 2px solid var(--bg-1);
}
::-webkit-scrollbar-thumb:hover { background: #313a57; }