/* Ambient: soundscape mixer (dock button + popover). */
.ambient { position: relative; display: inline-flex; }

/* Dock button: drops fall softly while something plays (never during focus, never with reduced motion). */
.ambient-btn .ambient-drop { transition: opacity var(--t-med) var(--ease); }
.ambient-btn:not(.is-playing) .ambient-drop { opacity: 0.55; }
.ambient-btn.is-playing .ambient-drop { animation: ambient-fall 2.4s var(--ease-in-out) infinite; }
.ambient-btn.is-playing .ambient-drop:nth-of-type(2) { animation-delay: -0.8s; }
.ambient-btn.is-playing .ambient-drop:nth-of-type(3) { animation-delay: -1.6s; }
body[data-phase='focus'] .ambient-btn .ambient-drop { animation: none; opacity: 1; }
.ambient-btn[aria-expanded='true']:hover::after { display: none; }
@keyframes ambient-fall {
  0% { transform: translateY(-1.5px); opacity: 0; }
  35% { opacity: 1; }
  100% { transform: translateY(2.5px); opacity: 0; }
}
@media (prefers-reduced-motion: reduce) {
  .ambient-btn.is-playing .ambient-drop { animation: none; opacity: 1; }
}

/* ---------- popover (portalled into #mount-overlays, positioned fixed by JS) ---------- */
.ambient-pop {
  position: fixed; left: 12px; bottom: calc(var(--dock-h) + 24px);
  width: 360px; max-width: calc(100vw - 16px); min-width: 0;
  display: flex; flex-direction: column; gap: var(--s-4);
  overflow-y: auto; overscroll-behavior: contain;
  visibility: hidden;
  box-shadow: var(--shadow), 0 0 0 0 transparent;
  transition:
    opacity var(--t-med) var(--ease),
    transform var(--t-med) var(--ease),
    box-shadow var(--t-slow) var(--ease),
    visibility 0s linear var(--t-med);
}
.ambient-pop.open {
  visibility: visible;
  box-shadow: var(--shadow), 0 0 70px -28px var(--lamp-glow);
  transition:
    opacity var(--t-med) var(--ease),
    transform var(--t-med) var(--ease),
    box-shadow var(--t-slow) var(--ease),
    visibility 0s;
}

.ambient-head { display: flex; align-items: flex-end; justify-content: space-between; gap: var(--s-3); }
.ambient-eyebrow { margin: 0 0 2px; }
.ambient-status {
  font-family: var(--font-mono); font-size: var(--fs-xs); color: var(--text-faint);
  font-variant-numeric: tabular-nums; padding-bottom: 3px;
}

/* ---------- presets ---------- */
.ambient-presets { display: flex; flex-wrap: wrap; gap: 6px; }
.ambient-chip {
  min-height: 32px; padding: 5px 12px; border-radius: var(--r-pill);
  border: 1px solid var(--glass-line-strong); background: rgba(243, 233, 216, 0.04);
  color: var(--text-dim); font-size: var(--fs-xs); letter-spacing: 0.01em;
  transition: background var(--t-fast) var(--ease), color var(--t-fast), border-color var(--t-fast), box-shadow var(--t-med) var(--ease);
}
.ambient-chip:hover { background: rgba(243, 233, 216, 0.09); color: var(--text); }
.ambient-chip[aria-pressed='true'] {
  background: var(--lamp); color: var(--ink-900); border-color: transparent; font-weight: 600;
  box-shadow: 0 0 22px -6px var(--lamp-glow);
}
.ambient-chip:active { transform: scale(0.97); }

/* ---------- channel rows ---------- */
.ambient-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 2px; }
.ambient-row {
  --lvl: 0;
  position: relative; isolation: isolate;
  display: grid; grid-template-columns: 38px minmax(0, 1fr) auto;
  grid-template-areas: 'ico text val' 'ico range range';
  column-gap: var(--s-3); row-gap: 0; align-items: center;
  padding: 6px 8px 4px; border-radius: var(--r-md);
}
/* The lamp glow grows with the level. */
.ambient-row::before {
  content: ''; position: absolute; inset: 0; z-index: -1; border-radius: inherit;
  background: radial-gradient(130% 160% at 0% 50%, rgba(255, 179, 92, 0.15), transparent 62%);
  opacity: var(--lvl); transition: opacity var(--t-med) var(--ease);
}
.ambient-row:hover { background: rgba(243, 233, 216, 0.03); }

.ambient-ch-btn {
  grid-area: ico; width: 38px; height: 38px; display: grid; place-items: center;
  border-radius: 50%; border: 1px solid var(--glass-line); background: rgba(243, 233, 216, 0.04);
  color: var(--text-faint);
  transition: color var(--t-med) var(--ease), background var(--t-med) var(--ease), box-shadow var(--t-slow) var(--ease), border-color var(--t-med);
}
.ambient-ch-btn svg { width: 18px; height: 18px; }
.ambient-ch-btn:hover { color: var(--text); background: rgba(243, 233, 216, 0.08); }
.ambient-row.is-on .ambient-ch-btn {
  color: var(--lamp); border-color: rgba(255, 179, 92, 0.35); background: rgba(255, 179, 92, 0.1);
  box-shadow: 0 0 18px -6px var(--lamp-glow);
}
.ambient-ch-btn:active { transform: scale(0.95); }

.ambient-text { grid-area: text; display: flex; align-items: baseline; gap: var(--s-2); min-width: 0; }
.ambient-name { font-size: var(--fs-sm); color: var(--text-dim); white-space: nowrap; transition: color var(--t-med); }
.ambient-row.is-on .ambient-name { color: var(--text); }
.ambient-hint {
  font-size: var(--fs-xs); color: var(--text-faint); min-width: 0;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
  font-family: var(--font-display); font-style: italic; font-variation-settings: 'SOFT' 100;
}
.ambient-val {
  grid-area: val; font-family: var(--font-mono); font-size: var(--fs-xs); color: var(--text-faint);
  font-variant-numeric: tabular-nums; min-width: 3ch; text-align: right;
}
.ambient-row.is-on .ambient-val { color: var(--lamp-soft); }

.ambient-row-master { border-top: 1px solid var(--glass-line); border-radius: 0 0 var(--r-md) var(--r-md); padding-top: var(--s-3); }
.ambient-row-master.is-on .ambient-ch-btn { color: var(--text); border-color: var(--glass-line-strong); background: rgba(243, 233, 216, 0.06); box-shadow: none; }
.ambient-row-master:not(.is-on) .ambient-ch-btn { color: var(--danger); }
.ambient-row-master::before { display: none; }
.ambient-duck {
  font-size: 10px; text-transform: uppercase; letter-spacing: 0.12em; color: var(--rose);
  border: 1px solid var(--rose-glow); border-radius: var(--r-pill); padding: 0 6px;
  opacity: 0; transition: opacity var(--t-med) var(--ease);
}
.ambient-pop.is-ducked .ambient-duck { opacity: 1; }

/* ---------- slider ---------- */
.ambient-range {
  --p: 0%;
  grid-area: range; width: 100%; height: 22px; margin: 0; background: transparent; cursor: pointer;
  -webkit-appearance: none; appearance: none;
}
.ambient-range:focus { outline: none; }
.ambient-range::-webkit-slider-runnable-track {
  height: 4px; border-radius: var(--r-pill);
  background: linear-gradient(to right, var(--lamp-deep), var(--lamp) var(--p), rgba(243, 233, 216, 0.13) var(--p));
}
.ambient-range::-moz-range-track { height: 4px; border-radius: var(--r-pill); background: rgba(243, 233, 216, 0.13); }
.ambient-range::-moz-range-progress { height: 4px; border-radius: var(--r-pill); background: linear-gradient(to right, var(--lamp-deep), var(--lamp)); }
.ambient-range::-webkit-slider-thumb {
  -webkit-appearance: none; appearance: none; width: 16px; height: 16px; margin-top: -6px; border: 0; border-radius: 50%;
  background: var(--lamp-soft); box-shadow: 0 0 0 0 var(--lamp-glow), 0 0 14px var(--lamp-glow);
  transition: box-shadow var(--t-fast) var(--ease), background var(--t-fast);
}
.ambient-range::-moz-range-thumb {
  width: 16px; height: 16px; border: 0; border-radius: 50%;
  background: var(--lamp-soft); box-shadow: 0 0 14px var(--lamp-glow);
}
.ambient-range[data-zero]::-webkit-slider-thumb { background: var(--text-dim); box-shadow: none; }
.ambient-range[data-zero]::-moz-range-thumb { background: var(--text-dim); box-shadow: none; }
.ambient-range:hover::-webkit-slider-thumb { box-shadow: 0 0 0 5px rgba(255, 179, 92, 0.16), 0 0 14px var(--lamp-glow); }
.ambient-range:focus-visible::-webkit-slider-thumb { box-shadow: 0 0 0 2px var(--ink-900), 0 0 0 4px var(--lamp); }
.ambient-range:focus-visible::-moz-range-thumb { box-shadow: 0 0 0 2px var(--ink-900), 0 0 0 4px var(--lamp); }

/* ---------- phone ---------- */
@media (max-width: 560px) {
  .ambient-pop { width: auto; padding: var(--s-3); gap: var(--s-3); }
  .ambient-chip { min-height: 36px; }
  .ambient-ch-btn { width: 40px; height: 40px; }
  .ambient-row { grid-template-columns: 40px minmax(0, 1fr) auto; }
  .ambient-range { height: 28px; }
  .ambient-range::-webkit-slider-thumb { width: 20px; height: 20px; margin-top: -8px; }
  .ambient-range::-moz-range-thumb { width: 20px; height: 20px; }
}