/* midiflow components. Every value comes from tokens.css (generated from tokens.json); load that first. */

:root, [data-theme="dark"] { color-scheme: dark; }
[data-theme="light"] { color-scheme: light; }

.mf {
  font-family: var(--font-sans);
  color: var(--ink);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
.mf *, .mf *::before, .mf *::after { box-sizing: border-box; }
.mf :focus-visible { outline: 2px solid var(--accent-ink); outline-offset: 2px; }
.label { text-transform: uppercase; color: var(--ink-muted); }
.readout-l, .readout, .readout-xs { font-variant-numeric: tabular-nums; }
.mf-sign { margin-right: -0.08em; }   /* the true minus (U+2212) has wide side bearings; this closes the gap to the digit */
.mf-icon { width: 16px; height: 16px; flex: none; display: block; }
.mf-muted { color: var(--ink-muted); }

/* Button: primary (one per surface), secondary, ghost; icon-only and toggle variants. */
.mf-btn {
  display: inline-flex; align-items: center; justify-content: center; gap: var(--space-2);
  height: 32px; padding: 0 var(--space-3);
  border: 1px solid var(--line-strong); border-radius: var(--radius-md);
  background: var(--panel-raised); color: var(--ink);
  font: 600 13px/1 var(--font-sans); white-space: nowrap; cursor: pointer;
  transition: background-color 120ms, border-color 120ms, color 120ms;
}
.mf-btn:hover { background: var(--line); }
.mf-btn--primary { background: var(--accent-fill); border-color: var(--accent-fill); color: var(--on-accent); }
.mf-btn--primary:hover { background: var(--accent-fill-hover); border-color: var(--accent-fill-hover); }
.mf-btn--ghost { background: transparent; border-color: transparent; color: var(--ink-muted); }
.mf-btn--ghost:hover { background: var(--panel-raised); color: var(--ink); }
.mf-btn--sm { height: 28px; padding: 0 var(--space-2); font-size: 12px; }
.mf-btn--icon { width: 32px; padding: 0; }
.mf-btn--sm.mf-btn--icon { width: 28px; }
.mf-btn[aria-pressed="true"] { background: var(--accent-tint); border-color: var(--accent); color: var(--ink); }
.mf-btn[aria-pressed="true"] .mf-icon { color: var(--accent-ink); }
.mf-btn:disabled { opacity: .45; cursor: default; pointer-events: none; }

/* Play button: the one filled control of the player. */
.mf-play {
  width: 40px; height: 40px; flex: none; display: grid; place-items: center; padding: 0;
  border: 0; border-radius: var(--radius-md);
  background: var(--accent-fill); color: var(--on-accent); cursor: pointer;
  transition: background-color 120ms;
}
.mf-play:hover { background: var(--accent-fill-hover); }
.mf-play:disabled { opacity: .45; cursor: default; }

/* Transport row: play, time, then the take tools on the right. */
.mf-transport { display: flex; align-items: center; gap: var(--space-3); min-width: 0; }
.mf-transport__time { color: var(--ink-muted); }
.mf-transport__time b { color: var(--ink); font-weight: 600; }
.mf-transport__tools { margin-left: auto; display: flex; gap: var(--space-1); }

/* Display: the screen sunk into a panel, holding the note lane and the waveform. */
.mf-display {
  position: relative; display: block; width: 100%;
  background: var(--display); border: 1px solid var(--line); border-radius: var(--radius-lg);
  box-shadow: var(--shadow-display); overflow: hidden;
}
.mf-display svg { display: block; width: 100%; height: auto; }
.mf-display .grid { stroke: var(--grid); stroke-width: 1; }
.mf-display .grid-bar { stroke: var(--line); stroke-width: 1; }
.mf-display .bar-no { fill: var(--ink-muted); font: 500 10px/1 var(--font-sans); font-variant-numeric: tabular-nums; }
.mf-display .note { fill: var(--note); }
.mf-display .note-silent { fill: none; stroke: var(--note); stroke-width: 1.5; }
.mf-display .wave { fill: var(--wave); }
.mf-display .wave-rest { fill: var(--wave-rest); }
.mf-display .playhead { fill: var(--accent); }

/* Meter: segmented like hardware LEDs, the number it is about above it. */
.mf-meter { display: grid; gap: 6px; min-width: 0; }
.mf-meter__head { display: flex; align-items: baseline; gap: var(--space-2); }
.mf-meter__value { color: var(--ink); }
.mf-meter__unit { color: var(--ink-muted); }
.mf-meter__note { margin-left: auto; color: var(--ink-muted); }
.mf-meter__track { position: relative; display: flex; gap: 2px; height: 8px; }
.mf-meter__seg { flex: 1; border-radius: var(--radius-xs); background: var(--panel-raised); }
.mf-meter__seg.is-level { background: var(--accent); }
.mf-meter__seg.is-good { background: var(--good); }
.mf-meter__seg.is-caution { background: var(--caution); }
.mf-meter__seg.is-critical { background: var(--critical); }
.mf-meter__mark { position: absolute; top: -3px; bottom: -3px; width: 2px; margin-left: -1px; border-radius: 1px; background: var(--ink); }
.mf-meter__scale { position: relative; height: 12px; color: var(--ink-muted); }
.mf-meter__scale span { position: absolute; transform: translateX(-50%); }
.mf-meter__scale span:first-child { transform: none; }
.mf-meter__scale span:last-child { transform: translateX(-100%); }

/* Status line: what happened, in words, with its icon. */
.mf-status {
  display: flex; align-items: flex-start; gap: var(--space-2);
  padding: var(--space-2) var(--space-3); border-radius: var(--radius-md);
  background: var(--good-tint); color: var(--ink);
}
.mf-status .mf-icon { margin-top: 1px; color: var(--good); }
.mf-status--caution { background: var(--caution-tint); }
.mf-status--caution .mf-icon { color: var(--caution); }
.mf-status--critical { background: var(--critical-tint); }
.mf-status--critical .mf-icon { color: var(--critical); }
.mf-status b { font-weight: 650; }
.mf-status > span { text-wrap: pretty; }

/* Chips: the sound in at most three words, and what changed since the last take. */
.mf-chips { display: flex; flex-wrap: wrap; gap: var(--space-1); }
.mf-chip {
  display: inline-flex; align-items: center; gap: var(--space-1); height: 22px; padding: 0 var(--space-2);
  border-radius: var(--radius-sm); background: var(--panel-raised); color: var(--ink);
  font: 500 12px/1 var(--font-sans);
}
.mf-chip--change { background: transparent; box-shadow: inset 0 0 0 1px var(--line-strong); }

/* Take list: recent takes for A/B; the selected one is tinted. */
.mf-takes { display: flex; flex-direction: column; gap: var(--space-1); margin: 0; padding: 0; list-style: none; }
.mf-take {
  display: grid; grid-template-columns: auto minmax(0, 1fr) auto; align-items: center; gap: var(--space-2);
  min-height: 36px; padding: var(--space-1) var(--space-2) var(--space-1) var(--space-1);
  border: 1px solid var(--line); border-radius: var(--radius-md); background: transparent;
  color: var(--ink); cursor: pointer;
  transition: background-color 120ms, border-color 120ms;
}
.mf-take:hover { border-color: var(--line-strong); }
.mf-take[aria-selected="true"] { background: var(--accent-tint); border-color: var(--accent); }
.mf-take__slot {
  display: grid; place-items: center; width: 24px; height: 24px; border-radius: var(--radius-sm);
  background: var(--panel-raised); color: var(--ink-muted); font: 700 11px/1 var(--font-sans);
}
.mf-take__slot:empty { background: transparent; box-shadow: inset 0 0 0 1px var(--line); }
.mf-take[aria-selected="true"] .mf-take__slot { background: var(--accent-fill); color: var(--on-accent); }
.mf-take__name { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.mf-take__meta { color: var(--ink-muted); }

/* Card: the panel that holds the player, or a website card. */
.mf-card {
  background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius-xl);
  padding: var(--space-4); display: flex; flex-direction: column; gap: var(--space-4); min-width: 0;
}
.mf-card__head { display: flex; align-items: center; gap: var(--space-2); min-width: 0; }
.mf-card__mark { width: 22px; height: auto; flex: none; }
.mf-card__title { margin: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.mf-card__aside { margin-left: auto; color: var(--ink-muted); white-space: nowrap; }
.mf-card__row { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: var(--space-5); }
.mf-divider { height: 1px; background: var(--line); border: 0; margin: 0; }

/* Tooltip: plain words for a warning; floats above the panel. */
.mf-tip {
  max-width: 280px; padding: var(--space-2) var(--space-3); border-radius: var(--radius-md);
  background: var(--panel-raised); color: var(--ink); box-shadow: var(--shadow-pop);
}

@media (prefers-reduced-motion: reduce) {
  .mf * { transition: none !important; animation: none !important; }
}