:root {
  color-scheme: dark;
  --bg: #17181b;
  --panel: #222327;
  --panel-2: #2b2d32;
  --line: #3b3e45;
  --text: #eceef1;
  --muted: #a4a9b3;
  --cell: #2c2e34;
  --cell-beat: #383b42;
  --accent: #e5483f;
  --accent-text: #ffffff;
  --on: 229, 72, 63;
  --ok: #4cc38a;
  --warn: #f5b74f;
  --label-width: clamp(92px, 14vw, 190px);
}

* { box-sizing: border-box; }

[hidden] { display: none !important; }

html, body { height: 100%; overflow: hidden; }

body {
  margin: 0;
  display: flex;
  flex-direction: column;
  height: 100dvh;
  background: var(--bg);
  color: var(--text);
  font: 14px/1.4 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

h1 { margin: 0 8px 0 0; font-size: 16px; font-weight: 700; letter-spacing: 0.02em; }

.bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px 14px;
  padding: 7px 16px;
  background: var(--panel);
  border-bottom: 1px solid var(--line);
}

.foot { border-top: 1px solid var(--line); border-bottom: 0; }
.spacer { flex: 1; }

label {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--muted);
  font-size: 12px;
}

label.check { color: var(--text); }

select, input[type="number"], input[type="text"], button {
  height: 30px;
  padding: 0 8px;
  color: var(--text);
  background: var(--panel-2);
  border: 1px solid var(--line);
  border-radius: 5px;
  font: inherit;
}

input[type="number"] { width: 76px; }
input[type="text"] { width: 170px; }
select { max-width: 210px; }

button { cursor: pointer; padding: 0 12px; }
button:hover:not(:disabled) { border-color: var(--muted); }
button:disabled { opacity: 0.45; cursor: default; }
button.primary { min-width: 72px; background: var(--accent); border-color: var(--accent); color: var(--accent-text); font-weight: 600; }

:focus-visible { outline: 2px solid #fff; outline-offset: 1px; }

.pill {
  padding: 4px 10px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--muted);
  font-size: 12px;
}
.pill.ok { color: var(--ok); border-color: var(--ok); }
.pill.warn { color: var(--warn); border-color: var(--warn); }

.group-label { color: var(--muted); font-size: 12px; }

.field { display: inline-flex; align-items: center; gap: 6px; }

.live-slider { width: 76px; accent-color: var(--accent); }

.segmented { display: inline-flex; }
.segmented button { padding: 0 9px; border-radius: 0; margin-left: -1px; }
.segmented button:first-child { margin-left: 0; border-radius: 5px 0 0 5px; }
.segmented button:last-child { border-radius: 0 5px 5px 0; }
.segmented button[aria-pressed="true"],
.toggle[aria-pressed="true"] {
  position: relative;
  z-index: 1;
  background: var(--text);
  border-color: var(--text);
  color: var(--bg);
  font-weight: 600;
}

.slots { display: flex; flex-wrap: wrap; gap: 4px; }
.slot {
  position: relative;
  width: 40px;
  height: 36px;
  padding: 0;
  color: var(--muted);
  background: var(--cell);
  font-variant-numeric: tabular-nums;
}
.slot.has-pattern { color: var(--text); background: #4a2a2a; border-color: rgb(var(--on)); }
.slot[aria-current="true"] { color: var(--accent-text); background: var(--accent); border-color: #fff; font-weight: 700; }
.slot.queued { border: 2px dashed #fff; }
.slot.changed::after,
.bank.has-notes::after {
  content: "";
  position: absolute;
  top: 3px;
  right: 3px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--warn);
}
.bank.has-notes::after { background: rgb(var(--on)); }

.grid-nav {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: 4px 12px;
  padding: 6px 16px 0;
  background: var(--bg);
}
.pager { display: inline-flex; align-items: center; gap: 8px; color: var(--muted); font-size: 12px; font-variant-numeric: tabular-nums; }
.pager button { width: 30px; padding: 0; font-size: 18px; line-height: 1; }
.banks { display: flex; gap: 2px; flex-wrap: wrap; }
.bank { position: relative; min-width: 42px; border-radius: 5px 5px 0 0; border-bottom: 0; background: var(--panel); color: var(--muted); }
.bank.used { padding: 0 12px; }
.bank[aria-current="true"] { background: var(--accent); border-color: var(--accent); color: var(--accent-text); font-weight: 700; }
.bank[aria-current="true"].has-notes::after { background: #fff; }

/* Columns always fit the width. Rows share the height, and scroll only if a
   very long "In use" list can't stay readable. */
.grid-wrap { position: relative; flex: 1; min-height: 0; overflow: hidden auto; padding: 0 16px 8px; }
.grid { display: grid; gap: 2px; width: 100%; height: 100%; user-select: none; }
.grid.dense { column-gap: 1px; }

.step-number {
  position: sticky;
  top: 0;
  z-index: 2;
  overflow: visible;
  background: var(--bg);
  color: var(--muted);
  font-size: 11px;
  line-height: 20px;
  text-align: center;
  white-space: nowrap;
}
.step-number.bar-start { color: var(--text); font-weight: 700; }

.corner { position: sticky; top: 0; left: 0; z-index: 4; background: var(--bg); }

.pad {
  position: sticky;
  left: 0;
  z-index: 3;
  display: flex;
  align-items: center;
  gap: 8px;
  width: 100%;
  height: 100%;
  min-height: 0;
  padding: 0 8px;
  overflow: hidden;
  background: var(--panel);
  border-radius: 4px;
  text-align: left;
  white-space: nowrap;
  font-size: 12px;
}
.pad .id { color: var(--muted); font-variant-numeric: tabular-nums; flex: none; }
.pad .name { overflow: hidden; text-overflow: ellipsis; }
.pad:active { background: var(--accent); }

.cell {
  position: relative;
  width: 100%;
  height: 100%;
  min-width: 0;
  min-height: 0;
  padding: 0;
  background: var(--cell);
  border: 0;
  border-radius: 3px;
}
.cell.beat { background: var(--cell-beat); }
.cell.bar-start { box-shadow: inset 2px 0 0 var(--muted); }
.cell:hover:not(.on) { background: #4a4e57; }
.cell.on { background: rgba(var(--on), var(--velocity, 1)); box-shadow: inset 0 0 0 1px rgb(var(--on)); }
/* One bar per hit, so note repeats are visible at any cell size. */
.cell.repeat {
  --hit-width: calc(100% / var(--hits));
  background:
    repeating-linear-gradient(
      90deg,
      rgb(var(--on)) 0 calc(var(--hit-width) - 1px),
      rgba(0, 0, 0, 0.55) calc(var(--hit-width) - 1px) var(--hit-width)
    );
  opacity: var(--velocity, 1);
}
.cell.has-bar { background: rgba(var(--on), 0.18); box-shadow: inset 0 0 0 1px rgba(var(--on), 0.5); }
.cell:has(.note-bar) { z-index: 1; }
/* Runs across steps, so clicks on the steps it covers still reach them. */
.note-bar {
  position: absolute;
  top: 15%;
  bottom: 15%;
  width: calc(var(--steps) * 100% + var(--gaps) * var(--grid-gap, 2px));
  min-width: 3px;
  background: rgba(var(--on), var(--velocity, 1));
  border-radius: 2px;
  pointer-events: none;
}
.note-handle {
  position: absolute;
  top: -15%;
  bottom: -15%;
  right: -4px;
  width: 9px;
  cursor: ew-resize;
  pointer-events: auto;
}
.note-handle:hover { background: rgba(255, 255, 255, 0.55); border-radius: 2px; }
.cell.chance { outline: 1px dashed #fff; outline-offset: -3px; }
.cell.editing { box-shadow: 0 0 0 2px #fff; z-index: 1; }
.cell.off-grid::after {
  content: "";
  position: absolute;
  top: 3px;
  right: 3px;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: #fff;
}

.playhead {
  position: absolute;
  top: 6px;
  width: 2px;
  background: #fff;
  pointer-events: none;
  z-index: 2;
}

.note-editor {
  position: fixed;
  z-index: 10;
  width: 300px;
  max-height: calc(100dvh - 16px);
  overflow-y: auto;
  padding: 12px;
  background: var(--panel-2);
  border: 1px solid var(--muted);
  border-radius: 8px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.55);
}
.note-editor h2 { margin: 0 0 8px; font-size: 13px; font-weight: 600; }
.editor-hits { margin: -4px 0 8px; color: var(--warn); font-size: 12px; }
.editor-row {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 8px;
  color: var(--text);
}
.editor-row input[type="range"] { flex: 1; min-width: 0; accent-color: var(--accent); }
.editor-row input[type="number"] { width: 72px; margin-left: auto; background: var(--bg); }
.editor-row input[aria-invalid="true"] { border-color: #ff8f88; }
.unit-note { color: var(--muted); font-size: 11px; }
.editor-actions { display: flex; gap: 6px; margin-top: 10px; }
.editor-actions #edit-done { margin-left: auto; }

.help {
  width: min(760px, calc(100vw - 32px));
  max-height: calc(100dvh - 32px);
  padding: 0;
  color: var(--text);
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 10px;
  overflow: hidden;
}
.help[open] { display: flex; flex-direction: column; }
.help::backdrop { background: rgba(0, 0, 0, 0.65); }
.help-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 12px 20px;
  border-bottom: 1px solid var(--line);
}
.help-head h2 { margin: 0; font-size: 17px; }
.help-body { min-height: 0; overflow-y: auto; padding: 4px 20px 20px; line-height: 1.5; }
.help-body h3 { margin: 22px 0 6px; font-size: 14px; }
.help-body p { margin: 8px 0; }
.help-body ol, .help-body ul { margin: 8px 0; padding-left: 22px; }
.help-body li { margin: 5px 0; }
.help-body code { font-size: 12px; color: var(--text); }
.help-body a { color: inherit; }
.help-body kbd {
  padding: 1px 5px;
  background: var(--panel-2);
  border: 1px solid var(--line);
  border-radius: 4px;
  font: 12px ui-monospace, Menlo, monospace;
  white-space: nowrap;
}
.help-body table { width: 100%; border-collapse: collapse; }
.help-body th, .help-body td { padding: 7px 8px; border-top: 1px solid var(--line); text-align: left; vertical-align: top; }
.help-body th { width: 34%; font-weight: 600; }
.help-body small { color: var(--muted); font-weight: 400; }
.help-warning { padding: 8px 12px; border-left: 3px solid var(--warn); background: var(--panel-2); }

.status { margin: 0; color: var(--muted); }
.status.error { color: #ff8f88; }
.dirty { color: var(--warn); font-size: 12px; }
.hint { margin: 0; padding: 0 16px 7px; background: var(--panel); color: var(--muted); font-size: 12px; }