/**
 * Audio Graph UI + Collaboration UI — additive layer for the create surface.
 * Reuses create-system / style tokens when present; no purple AI look, no modals.
 */
:root {
  /* Fallbacks match FL create tokens (create-system.css overrides when loaded) */
  --acu-ink: var(--cs-ink, var(--ink, #e0e0e0));
  --acu-muted: var(--cs-muted, var(--muted, #9a9a9a));
  --acu-line: var(--cs-line, var(--line, #3a3a3a));
  --acu-bg: var(--cs-bg, var(--bg1, #242424));
  --acu-bg-deep: var(--cs-bg-deep, var(--bg0, #1a1a1a));
  --acu-accent: var(--cs-accent, var(--accent, #ff8a00));
  --acu-accent-2: var(--cs-accent-2, var(--accent-2, #00e5ff));
  --acu-good: var(--cs-success, var(--good, #a6ff00));
  --acu-warn: var(--cs-warning, var(--warn, #ff8a00));
  --acu-bad: var(--cs-error, var(--bad, #ff3b4a));
  --acu-font: var(--cs-font-body, var(--font-body, "DM Sans", system-ui, sans-serif));
  --acu-mono: var(--cs-font-mono, var(--font-mono, "JetBrains Mono", ui-monospace, monospace));
}

/* —— Latency: colored dot only —— */
.acu-latency {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  color: var(--acu-muted);
  font-size: 0.75rem;
  font-family: var(--acu-font);
  user-select: none;
}
.acu-latency__dot {
  width: 0.55rem;
  height: 0.55rem;
  border-radius: 50%;
  background: var(--acu-muted);
  box-shadow: 0 0 0 0 transparent;
  transition: background 160ms ease, box-shadow 160ms ease;
}
.acu-latency[data-level="good"] .acu-latency__dot {
  background: var(--acu-good);
}
.acu-latency[data-level="warn"] .acu-latency__dot {
  background: var(--acu-warn);
}
.acu-latency[data-level="bad"] .acu-latency__dot {
  background: var(--acu-bad);
}
.acu-latency__ms {
  font-variant-numeric: tabular-nums;
  font-family: var(--acu-mono);
  font-size: 0.7rem;
  opacity: 0.55;
}

/* —— Monitoring toggle —— */
.acu-monitor {
  display: inline-flex;
  align-items: stretch;
  border: 1px solid var(--acu-line);
  border-radius: 6px;
  overflow: hidden;
  background: linear-gradient(180deg, #2a2a2a, #1e1e1e);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.06);
}
.acu-monitor__btn {
  appearance: none;
  border: 0;
  background: transparent;
  color: var(--acu-muted);
  font: inherit;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  padding: 0.4rem 0.65rem;
  cursor: pointer;
  transition: background 120ms ease, color 120ms ease, box-shadow 120ms ease;
}
.acu-monitor__btn[aria-pressed="true"] {
  background: rgba(166, 255, 0, 0.12);
  color: var(--acu-good);
  box-shadow: 0 0 10px rgba(166, 255, 0, 0.2);
}
.acu-monitor__btn:focus-visible {
  outline: 2px solid var(--acu-accent);
  outline-offset: -2px;
}

/* —— Record button states —— */
.acu-record {
  --rec: var(--acu-bad);
  appearance: none;
  border: 2px solid var(--rec);
  background: transparent;
  color: var(--acu-ink);
  width: 2.75rem;
  height: 2.75rem;
  border-radius: 50%;
  display: inline-grid;
  place-items: center;
  cursor: pointer;
  position: relative;
  transition: transform 120ms ease, box-shadow 160ms ease, background 160ms ease;
}
.acu-record__glyph {
  width: 0.95rem;
  height: 0.95rem;
  border-radius: 50%;
  background: var(--rec);
  transition: border-radius 120ms ease, transform 120ms ease;
}
.acu-record[data-state="idle"] {
  --rec: var(--acu-bad);
}
.acu-record[data-state="armed"] {
  --rec: var(--acu-warn);
  box-shadow: 0 0 0 3px rgba(224, 176, 74, 0.25);
  animation: acu-arm-pulse 1.1s ease-in-out infinite;
}
.acu-record[data-state="recording"] {
  --rec: var(--acu-bad);
  background: rgba(224, 106, 92, 0.18);
  box-shadow: 0 0 0 4px rgba(224, 106, 92, 0.2);
}
.acu-record[data-state="recording"] .acu-record__glyph {
  border-radius: 0.2rem;
  width: 0.8rem;
  height: 0.8rem;
}
.acu-record:active {
  transform: scale(0.96);
}
@keyframes acu-arm-pulse {
  0%,
  100% {
    box-shadow: 0 0 0 2px rgba(224, 176, 74, 0.15);
  }
  50% {
    box-shadow: 0 0 0 6px rgba(224, 176, 74, 0.28);
  }
}

/* —— Clip dock control —— */
.acu-clip {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
}
.acu-clip__btn {
  appearance: none;
  border: 1px solid var(--acu-line);
  background: rgba(0, 0, 0, 0.18);
  color: var(--acu-ink);
  font: inherit;
  font-size: 0.8rem;
  font-weight: 600;
  padding: 0.45rem 0.85rem;
  border-radius: 0.55rem;
  cursor: pointer;
}
.acu-clip__btn:hover {
  border-color: rgba(224, 138, 60, 0.45);
}
.acu-clip__input {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
}

/* —— Onset / envelope pulse —— */
.acu-onset-target {
  transition: box-shadow 80ms ease, filter 80ms ease;
}
.acu-onset-target.is-onset {
  box-shadow: inset 0 0 0 2px rgba(240, 176, 106, 0.55),
    0 0 28px rgba(224, 138, 60, 0.22);
  filter: saturate(1.15);
}
.acu-dock.is-onset .acu-record {
  transform: scale(1.04);
}

/* —— Presence avatar stack —— */
.acu-presence {
  display: inline-flex;
  align-items: center;
  flex-direction: row-reverse;
  padding-left: 0.45rem;
}
.acu-presence__bubble {
  width: 1.7rem;
  height: 1.7rem;
  margin-left: -0.45rem;
  border-radius: 50%;
  border: 2px solid var(--acu-bg-deep);
  display: grid;
  place-items: center;
  font-size: 0.62rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--acu-bg-deep);
  background: var(--acu-accent-2);
  text-transform: uppercase;
  position: relative;
}
.acu-presence__bubble[data-online="false"] {
  opacity: 0.45;
  filter: grayscale(0.4);
}
.acu-presence__bubble[data-recording="true"]::after {
  content: "";
  position: absolute;
  right: -1px;
  bottom: -1px;
  width: 0.45rem;
  height: 0.45rem;
  border-radius: 50%;
  background: var(--acu-bad);
  border: 1px solid var(--acu-bg-deep);
}
.acu-presence__more {
  background: var(--acu-bg);
  color: var(--acu-muted);
  font-size: 0.65rem;
}

/* —— Someone is recording —— */
.acu-rec-banner {
  display: none;
  align-items: center;
  gap: 0.45rem;
  padding: 0.35rem 0.75rem;
  border-radius: 999px;
  background: rgba(224, 106, 92, 0.16);
  border: 1px solid rgba(224, 106, 92, 0.35);
  color: var(--acu-ink);
  font-size: 0.78rem;
  font-weight: 600;
}
.acu-rec-banner[data-active="true"] {
  display: inline-flex;
}
.acu-rec-banner__dot {
  width: 0.45rem;
  height: 0.45rem;
  border-radius: 50%;
  background: var(--acu-bad);
  animation: acu-rec-blink 0.9s ease-in-out infinite;
}
@keyframes acu-rec-blink {
  0%,
  100% {
    opacity: 1;
  }
  50% {
    opacity: 0.35;
  }
}

/* —— Chat sheet (not a modal) —— */
.acu-chat-sheet {
  position: fixed;
  z-index: 40;
  display: flex;
  flex-direction: column;
  background: linear-gradient(180deg, rgba(42, 34, 27, 0.97), rgba(20, 17, 14, 0.98));
  border: 1px solid var(--acu-line);
  color: var(--acu-ink);
  font-family: var(--acu-font);
  transform: translateY(110%);
  transition: transform 220ms cubic-bezier(0.2, 0.8, 0.2, 1);
  pointer-events: none;
}
.acu-chat-sheet[data-open="true"] {
  transform: translateY(0);
  pointer-events: auto;
}
.acu-chat-sheet--bottom {
  left: 0;
  right: 0;
  bottom: 0;
  max-height: min(48vh, 420px);
  border-radius: 1rem 1rem 0 0;
  border-bottom: 0;
}
.acu-chat-sheet--side {
  top: 0;
  right: 0;
  bottom: 0;
  width: min(22rem, 92vw);
  max-height: none;
  border-radius: 1rem 0 0 1rem;
  border-right: 0;
  transform: translateX(110%);
}
.acu-chat-sheet--side[data-open="true"] {
  transform: translateX(0);
}
.acu-chat-sheet__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  padding: 0.75rem 1rem 0.5rem;
  border-bottom: 1px solid var(--acu-line);
}
.acu-chat-sheet__head h3 {
  margin: 0;
  font-size: 0.95rem;
  font-weight: 600;
}
.acu-chat-sheet__close {
  appearance: none;
  border: 0;
  background: transparent;
  color: var(--acu-muted);
  font-size: 1.25rem;
  line-height: 1;
  cursor: pointer;
  padding: 0.2rem;
}
.acu-chat-sheet__list {
  list-style: none;
  margin: 0;
  padding: 0.65rem 1rem;
  overflow: auto;
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
}
.acu-chat-sheet__list li {
  font-size: 0.85rem;
  line-height: 1.35;
}
.acu-chat-sheet__list strong {
  color: var(--acu-accent-2);
  font-weight: 600;
}
.acu-chat-sheet__list .muted {
  color: var(--acu-muted);
  font-size: 0.75rem;
}
.acu-chat-sheet__compose {
  display: flex;
  gap: 0.4rem;
  padding: 0.65rem 1rem calc(0.75rem + env(safe-area-inset-bottom, 0));
  border-top: 1px solid var(--acu-line);
}
.acu-chat-sheet__compose input {
  flex: 1;
  min-width: 0;
  border: 1px solid var(--acu-line);
  background: rgba(0, 0, 0, 0.25);
  color: var(--acu-ink);
  border-radius: 0.55rem;
  padding: 0.55rem 0.7rem;
  font: inherit;
  font-size: 0.9rem;
}
.acu-chat-sheet__compose button {
  appearance: none;
  border: 1px solid rgba(224, 138, 60, 0.45);
  background: rgba(224, 138, 60, 0.2);
  color: var(--acu-ink);
  border-radius: 0.55rem;
  padding: 0.5rem 0.85rem;
  font: inherit;
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
}

/* —— Live cursor markers (DOM overlay helpers) —— */
.acu-cursor-layer {
  position: absolute;
  inset: 0;
  pointer-events: none;
  overflow: hidden;
  z-index: 2;
}
.acu-cursor-mark {
  position: absolute;
  top: 0;
  bottom: 0;
  width: 2px;
  transform: translateX(-1px);
  background: var(--acu-cursor, #7aa2e0);
  opacity: 0.85;
}
.acu-cursor-mark__label {
  position: absolute;
  top: 0.25rem;
  left: 0.3rem;
  font-size: 0.65rem;
  font-weight: 700;
  color: var(--acu-bg-deep);
  background: var(--acu-cursor, #7aa2e0);
  padding: 0.1rem 0.3rem;
  border-radius: 0.25rem;
  white-space: nowrap;
  max-width: 7rem;
  overflow: hidden;
  text-overflow: ellipsis;
}

@media (min-width: 900px) {
  .acu-chat-sheet--auto {
    top: 0;
    right: 0;
    bottom: 0;
    left: auto;
    width: min(22rem, 32vw);
    max-height: none;
    border-radius: 1rem 0 0 1rem;
    border-right: 0;
    transform: translateX(110%);
  }
  .acu-chat-sheet--auto[data-open="true"] {
    transform: translateX(0);
  }
}