/* DrumCoach — dark practice-room theme. */

:root {
  --bg: #0d1017;
  --panel: #151a24;
  --panel-2: #1b2230;
  --line: #283042;
  --text: #e8edf6;
  --muted: #7e8aa0;
  --accent: #ff5d73;
  --accent-2: #5aa0ff;
  --good: #43d17a;
  --warn: #f5c451;
  --early: #f5c451;
  --late: #5aa0ff;
  --miss: #ff5d73;
  --radius: 12px;
  font-synthesis: none;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: radial-gradient(1200px 600px at 70% -10%, #18202e 0%, var(--bg) 55%);
  color: var(--text);
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  min-height: 100vh;
}

h1, h2 { margin: 0; font-weight: 650; }
h2 { font-size: 0.95rem; letter-spacing: 0.02em; color: var(--muted); text-transform: uppercase; }

/* Top bar -------------------------------------------------------------- */
.topbar {
  border-bottom: 1px solid var(--line);
  background: rgba(13, 16, 23, 0.7);
  backdrop-filter: blur(8px);
  position: sticky; top: 0; z-index: 10;
}
/* Keep the bar background full-width, but align its content to the same
   centered column as <main>. */
.topbar-inner {
  max-width: 1080px; margin: 0 auto; padding: 14px 22px;
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
}
.topbar h1 { font-size: 1.25rem; display: flex; gap: 8px; align-items: center; }
.logo { filter: drop-shadow(0 2px 6px rgba(255,93,115,0.5)); }
.brand { display: flex; flex-direction: column; gap: 2px; }
.tagline { margin: 0; font-size: 0.78rem; color: var(--muted); }
.topbar-controls { display: flex; align-items: center; gap: 14px; }
.btn-sync { font-size: 0.85rem; white-space: nowrap; max-width: 200px; overflow: hidden; text-overflow: ellipsis; }
.btn-sync[hidden] { display: none; }

.meter {
  width: 120px; height: 10px; border-radius: 6px;
  background: var(--panel-2); overflow: hidden; border: 1px solid var(--line);
}
.meter-fill {
  height: 100%; width: 0%;
  background: linear-gradient(90deg, var(--good), var(--warn), var(--accent));
  transition: width 60ms linear;
}

/* Layout --------------------------------------------------------------- */
main {
  max-width: 1080px; margin: 0 auto; padding: 22px;
  display: flex; flex-direction: column; gap: 18px;
}
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
@media (max-width: 760px) { .grid-2 { grid-template-columns: 1fr; } }

.panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 16px 18px;
}
.panel-head {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 12px; gap: 12px; flex-wrap: wrap;
}

/* Staff ---------------------------------------------------------------- */
.staff-canvas {
  width: 100%; height: 340px; display: block;
  background: linear-gradient(180deg, #0f1420, #121826);
  border-radius: 8px; border: 1px solid var(--line);
}
.last-hit { font-size: 0.85rem; color: var(--muted); font-variant-numeric: tabular-nums; }
.last-hit #last-voice { color: var(--text); font-weight: 600; }
.conf { color: var(--accent-2); margin-left: 6px; }

/* Stats ---------------------------------------------------------------- */
.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; }
.stat {
  background: var(--panel-2); border: 1px solid var(--line);
  border-radius: 10px; padding: 12px; text-align: center;
}
.stat-value {
  font-size: 1.5rem; font-weight: 700; font-variant-numeric: tabular-nums;
}
.stat-value.good { color: var(--good); }
.stat-value.early { color: var(--early); }
.stat-value.late { color: var(--late); }
.stat-label { font-size: 0.72rem; color: var(--muted); margin-top: 2px; text-transform: uppercase; letter-spacing: 0.03em; }
.hint { color: var(--muted); font-size: 0.82rem; margin: 12px 0 0; }

/* Buttons & inputs ----------------------------------------------------- */
.btn {
  background: var(--panel-2); color: var(--text);
  border: 1px solid var(--line); border-radius: 8px;
  padding: 8px 14px; font-size: 0.9rem; cursor: pointer;
  transition: background 0.15s, border-color 0.15s, transform 0.05s;
}
.btn:hover { background: #232c3d; border-color: #3a4660; }
.btn:active { transform: translateY(1px); }
.btn.active { background: rgba(67,209,122,0.16); border-color: var(--good); color: var(--good); }
.btn-primary { background: var(--accent); border-color: var(--accent); color: #1b0a0e; font-weight: 600; }
.btn-primary:hover { background: #ff7384; }
.btn-icon { padding: 6px 10px; font-weight: 700; }
.btn-small { padding: 5px 10px; font-size: 0.8rem; }

.row { display: flex; align-items: center; gap: 14px; flex-wrap: wrap; margin-bottom: 12px; }
.row label { font-size: 0.85rem; color: var(--muted); display: flex; align-items: center; gap: 8px; }
select, input[type="number"] {
  background: var(--panel-2); color: var(--text);
  border: 1px solid var(--line); border-radius: 7px; padding: 6px 8px; font-size: 0.9rem;
}
input[type="number"] { width: 64px; text-align: center; }

.bpm-control { display: flex; align-items: center; gap: 6px; }
.unit { color: var(--muted); font-size: 0.8rem; }
.slider { -webkit-appearance: none; appearance: none; height: 6px; border-radius: 4px; background: var(--panel-2); outline: none; flex: 1; min-width: 120px; }
.slider::-webkit-slider-thumb { -webkit-appearance: none; width: 16px; height: 16px; border-radius: 50%; background: var(--accent); cursor: pointer; border: 2px solid #1b0a0e; }
.slider::-moz-range-thumb { width: 16px; height: 16px; border-radius: 50%; background: var(--accent); cursor: pointer; border: none; }
.vol { flex: 1; }

/* Beat dots ------------------------------------------------------------ */
.beat-dots { display: flex; gap: 10px; margin-top: 6px; }
.dot {
  width: 18px; height: 18px; border-radius: 50%;
  background: var(--panel-2); border: 1px solid var(--line);
  transition: transform 0.06s, background 0.06s, box-shadow 0.06s;
}
.dot.strong { border-color: var(--accent); }
.dot.on { background: var(--accent-2); box-shadow: 0 0 12px var(--accent-2); transform: scale(1.25); }
.dot.strong.on { background: var(--accent); box-shadow: 0 0 14px var(--accent); }

/* Sequencer ------------------------------------------------------------ */
.seq-controls { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.seq-scroll { overflow-x: auto; padding-bottom: 6px; }
.sequencer { display: flex; flex-direction: column; gap: 4px; min-width: 520px; }
.seq-row { display: grid; grid-template-columns: 92px max-content; align-items: center; gap: 8px; }
.seq-label {
  display: flex; align-items: center; justify-content: flex-end; gap: 5px;
  font-size: 0.78rem; color: var(--muted);
}
.seq-name { white-space: nowrap; }
.seq-play {
  display: inline-flex; align-items: center; justify-content: center; flex: none;
  width: 19px; height: 19px; padding: 0;
  background: transparent; border: none; border-radius: 5px;
  color: var(--muted); cursor: pointer; transition: color 0.12s, background 0.12s, transform 0.05s;
}
.seq-play:hover { color: var(--accent-2); background: rgba(90,160,255,0.14); }
.seq-play:active { transform: scale(0.88); }
.seq-play.playing { color: var(--accent); background: rgba(255,93,115,0.16); }
.seq-cells { display: grid; grid-template-columns: repeat(var(--steps), 18px); gap: 3px; }
.cell {
  height: 24px; width: 18px; min-width: 0; padding: 0;
  border: 1px solid var(--line); border-radius: 4px;
  background: var(--panel-2); cursor: pointer; transition: background 0.1s, transform 0.05s;
}
.cell.beat { border-color: #34405a; }
.cell.bar { border-left: 2px solid var(--accent); }
.cell:hover { background: #2a344a; }
.cell.on { background: linear-gradient(180deg, var(--accent), #c93a4e); border-color: var(--accent); }
.cell:active { transform: scale(0.92); }
/* Moving playhead column while the pattern is playing. */
.cell.playcol { box-shadow: 0 0 0 2px var(--accent-2), 0 0 9px rgba(90,160,255,0.55); }

/* Loop toggle + tempo control in the Pattern header. */
.loop-toggle { display: inline-flex; align-items: center; gap: 5px; font-size: 0.85rem; color: var(--muted); cursor: pointer; }
.loop-toggle input { accent-color: var(--accent-2); cursor: pointer; }
.tempo-control { display: inline-flex; align-items: center; gap: 5px; font-size: 0.85rem; color: var(--muted); }
.tempo-control input { width: 58px; text-align: center; }

/* Slot-count caption under the grid. */
.seq-meta { font-size: 0.74rem; color: var(--muted); margin-top: 8px; }

/* Saved-pattern row (reuses .kit-field / .kit-actions). */
.pattern-store-row { margin-top: 14px; gap: 14px; align-items: flex-end; flex-wrap: wrap; }
.pattern-store-row #pattern-store-status { flex-basis: 100%; margin: 2px 0 0; }

/* Score ---------------------------------------------------------------- */
.score { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 14px; align-items: center; }
.score-pill {
  background: var(--panel-2); border: 1px solid var(--line);
  border-radius: 20px; padding: 5px 12px; font-size: 0.82rem; color: var(--muted);
  font-variant-numeric: tabular-nums;
}
.score-pill.big { font-size: 1rem; font-weight: 700; color: var(--text); }
.score-pill.big.good { background: rgba(67,209,122,0.16); border-color: var(--good); color: var(--good); }
.score-pill.big.ok { background: rgba(245,196,81,0.16); border-color: var(--warn); color: var(--warn); }
.score-pill.big.bad { background: rgba(255,93,115,0.16); border-color: var(--miss); color: var(--miss); }
.score-pill.early { color: var(--early); }
.score-pill.late { color: var(--late); }
.score-pill.miss { color: var(--miss); }

/* Calibration ---------------------------------------------------------- */
.cal-step {
  font-size: 0.72rem; text-transform: uppercase; letter-spacing: 0.05em;
  color: var(--muted); margin: 14px 0 6px;
}
.cal-grid { display: flex; gap: 8px; flex-wrap: wrap; }
.cal-btn {
  background: var(--panel-2); color: var(--text);
  border: 1px solid var(--line); border-radius: 8px;
  padding: 8px 14px; font-size: 0.85rem; cursor: pointer; transition: all 0.15s;
}
.cal-btn:hover { border-color: var(--accent-2); }
.cal-btn:disabled { opacity: 0.4; cursor: not-allowed; }
.cal-btn.selected {
  background: rgba(90,160,255,0.18); border-color: var(--accent-2); color: var(--accent-2);
}
.cal-actions { margin-bottom: 4px; }

/* Start/Stop button — green "go" when idle, red "recording" while active. */
.btn.cal-start { background: var(--good); border-color: var(--good); color: #06160c; font-weight: 600; }
.btn.cal-start:hover { background: #5bdd92; }
.btn.cal-start:disabled { background: var(--panel-2); border-color: var(--line); color: var(--muted); font-weight: 400; }
.btn.recording {
  background: var(--miss); border-color: var(--miss); color: #1b0a0e; font-weight: 600;
  animation: pulse 1.1s infinite;
}
@keyframes pulse { 0%,100% { box-shadow: 0 0 0 0 rgba(255,93,115,0.5); } 50% { box-shadow: 0 0 0 8px rgba(255,93,115,0); } }

/* Big unmistakable "you are calibrating" banner. */
.cal-banner {
  display: flex; align-items: center; gap: 12px;
  margin: 10px 0 4px; padding: 12px 16px;
  background: rgba(255,93,115,0.12); border: 1px solid var(--miss); border-radius: 10px;
  color: var(--text); font-size: 0.9rem;
}
.cal-banner[hidden] { display: none; }
.rec-dot {
  width: 12px; height: 12px; border-radius: 50%; background: var(--miss);
  box-shadow: 0 0 10px var(--miss); animation: blink 1s infinite; flex: none;
}
@keyframes blink { 0%,100% { opacity: 1; } 50% { opacity: 0.25; } }
.cal-count { margin-left: auto; color: var(--accent-2); font-variant-numeric: tabular-nums; }
.sens { flex: 1; gap: 10px; }

/* Sub-sections inside the Calibrate & tune panel. Each is a darker inset card
   so the three concerns (save/load, calibrate, tune) read as separate groups. */
.subpanel {
  background: rgba(0, 0, 0, 0.16);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 12px 16px 16px;
  margin-top: 12px;
}
.subpanel:first-of-type { margin-top: 6px; }
.subpanel-head {
  display: flex; align-items: baseline; gap: 10px; flex-wrap: wrap;
  padding-bottom: 10px; margin-bottom: 4px; border-bottom: 1px solid var(--line);
}
.subpanel-title { font-size: 0.82rem; font-weight: 650; color: var(--text); letter-spacing: 0.02em; }
.subpanel-sub { font-size: 0.78rem; color: var(--muted); }
.subpanel .cal-step { margin-top: 12px; }
.cal-stepblock + .cal-stepblock { margin-top: 6px; }

/* Kit profile row: labelled Profile / Name fields + action buttons. */
.kit-row { gap: 14px; align-items: flex-end; }
.kit-field {
  display: flex; flex-direction: column; gap: 4px;
  font-size: 0.7rem; text-transform: uppercase; letter-spacing: 0.04em; color: var(--muted);
}
.kit-field.grow { flex: 1; min-width: 160px; }
.kit-field select { min-width: 160px; }
.kit-field input {
  width: 100%;
  background: var(--panel-2); color: var(--text);
  border: 1px solid var(--line); border-radius: 7px; padding: 6px 8px; font-size: 0.9rem;
}
.kit-field input::placeholder { color: var(--muted); text-transform: none; letter-spacing: 0; }
.kit-actions { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.btn.btn-accent { background: var(--good); border-color: var(--good); color: #06160c; font-weight: 600; }
.btn.btn-accent:hover { background: #5bdd92; }
.btn.btn-ghost { color: var(--muted); }
.btn.btn-ghost:hover { color: var(--text); border-color: var(--miss); }

/* Voice-rejection segmented control. */
.voice-row { gap: 14px; }
.seg { display: inline-flex; background: var(--panel-2); border: 1px solid var(--line); border-radius: 9px; padding: 3px; gap: 3px; }
.seg-btn {
  background: transparent; color: var(--muted); border: none; cursor: pointer;
  padding: 6px 14px; font-size: 0.85rem; border-radius: 6px; transition: all 0.12s;
}
.seg-btn:hover { color: var(--text); }
.seg-btn.active { background: var(--accent-2); color: #06101f; font-weight: 600; }

/* Footer --------------------------------------------------------------- */
.foot { text-align: center; color: var(--muted); font-size: 0.78rem; padding: 24px; }
.foot .credit { display: block; margin-top: 6px; font-size: 0.74rem; opacity: 0.75; }
.foot .credit a { color: inherit; }