/* css/dock.css — the About section's side figure: sotorasib docking to Cys12
   (rendered by js/dock3d.js), with a timeline scrubber and a free camera.
   The poster is the pre-boot and no-WebGL frame. */

.dock {
  position: relative;
  container: dock / inline-size;
  isolation: isolate;
  margin: 0;
  aspect-ratio: 1 / 1;
  border: 1px solid var(--line);
  border-radius: calc(var(--radius) + 6px);
  background:
    radial-gradient(60% 55% at 62% 38%, color-mix(in srgb, var(--accent-2) 16%, transparent), transparent 72%),
    radial-gradient(45% 40% at 28% 78%, color-mix(in srgb, var(--accent) 8%, transparent), transparent 70%),
    linear-gradient(180deg, color-mix(in srgb, var(--surface) 85%, transparent), color-mix(in srgb, var(--bg) 92%, transparent));
  box-shadow:
    inset 0 1px 0 color-mix(in srgb, var(--ink) 7%, transparent),
    0 40px 90px -50px color-mix(in srgb, var(--accent-2) 45%, transparent);
  overflow: hidden;
}

/* A faint dot grid behind the scene, fading out toward the edges. */
.dock::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background-image: radial-gradient(color-mix(in srgb, var(--ink) 16%, transparent) 1px, transparent 1.2px);
  background-size: 22px 22px;
  -webkit-mask-image: radial-gradient(75% 70% at 55% 42%, #000 10%, transparent 78%);
  mask-image: radial-gradient(75% 70% at 55% 42%, #000 10%, transparent 78%);
  opacity: 0.45;
  pointer-events: none;
}

.dock .poster,
.dock-host {
  position: absolute;
  inset: 0;
}

.dock .poster img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.dock-host {
  opacity: 0;
  cursor: grab;
  touch-action: pan-y;
  user-select: none;
  -webkit-user-select: none;
  transition: opacity 0.6s ease;
}

.dock-host.is-dragging {
  cursor: grabbing;
}

.dock.is-live .dock-host {
  opacity: 1;
}

.dock.is-live .poster {
  opacity: 0;
  transition: opacity 0.6s ease;
}

.dock-host canvas {
  display: block;
  width: 100%;
  height: 100%;
}

.dock-caption {
  position: absolute;
  top: 0.65rem;
  left: 0.65rem;
  z-index: 2;
  margin: 0;
  padding: 0.3rem 0.65rem;
  border: 1px solid color-mix(in srgb, var(--ink) 8%, transparent);
  border-radius: 999px;
  background: color-mix(in srgb, var(--bg) 55%, transparent);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  color: var(--faint);
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  pointer-events: none;
}

/* Screen-reader description of the animation (kept in sync by the module). */
.dock-desc {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
}

/* --- top: scene picker + caption --- */
.dock-top {
  position: absolute;
  top: 0.65rem;
  left: 0.65rem;
  right: 4rem;
  z-index: 3;
  display: grid;
  justify-items: start;
  gap: 0.45rem;
  pointer-events: none;
}

.dock-top > * {
  pointer-events: auto;
}

.dock-top .dock-caption {
  position: static;
  border-radius: 12px;
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.2rem 0.75rem;
  max-width: 100%;
}

.dock-picker {
  display: inline-flex;
  gap: 2px;
  padding: 3px;
  border: 1px solid color-mix(in srgb, var(--ink) 10%, transparent);
  border-radius: 999px;
  background: color-mix(in srgb, var(--bg) 55%, transparent);
  -webkit-backdrop-filter: blur(14px) saturate(150%);
  backdrop-filter: blur(14px) saturate(150%);
}

.dock-chip {
  min-height: 1.9rem;
  padding: 0 0.8rem;
  border: 0;
  border-radius: 999px;
  background: transparent;
  color: var(--muted);
  font: inherit;
  font-size: 0.78rem;
  font-weight: 500;
  cursor: pointer;
  transition: background-color var(--dur-quick) ease, color var(--dur-quick) ease;
}

.dock-chip:hover {
  color: var(--ink);
}

.dock-chip[aria-pressed="true"] {
  background: var(--ink);
  color: var(--bg);
}

.dock-chip:disabled {
  cursor: progress;
}

.dock-chip:focus-visible,
.dock-open:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.dock-open {
  color: var(--accent);
  text-decoration: none;
  white-space: nowrap;
}

.dock-open:hover {
  color: var(--ink);
}

.dock[aria-busy="true"] .dock-host {
  opacity: 0.55;
}

/* --- floating atom labels --- */
.dock-label {
  position: absolute;
  top: 0;
  left: 0;
  z-index: 1;
  padding: 0.14rem 0.5rem;
  border: 1px solid color-mix(in srgb, var(--ink) 12%, transparent);
  border-radius: 999px;
  background: color-mix(in srgb, var(--bg) 78%, transparent);
  box-shadow: 0 6px 18px -8px rgba(0, 0, 0, 0.5);
  color: var(--ink);
  font-family: var(--font-mono);
  font-size: 0.66rem;
  letter-spacing: 0.02em;
  white-space: nowrap;
  pointer-events: none;
  transition: opacity 0.35s ease;
  will-change: transform;
}

.dock-label-ligand {
  color: var(--accent);
  border-color: color-mix(in srgb, var(--accent) 35%, transparent);
}

/* --- controls: stage readout + scrubber --- */
.dock-ui {
  position: absolute;
  right: 0.75rem;
  bottom: 0.75rem;
  left: 0.75rem;
  z-index: 3;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0.5rem;
  opacity: 0;
  transform: translateY(8px);
  transition: opacity 0.5s ease, transform 0.6s var(--ease-out);
}

.dock.is-live .dock-ui {
  opacity: 1;
  transform: none;
}

.dock-meta {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  padding: 0 0.35rem;
  pointer-events: none;
}

.dock-stage,
.dock-hint {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  white-space: nowrap;
}

.dock-stage {
  display: flex;
  align-items: baseline;
  gap: 0.55rem;
  min-width: 0;
  color: var(--muted);
}

.dock-stage-idx {
  color: var(--faint);
}

.dock-stage-name {
  color: var(--ink);
}

.dock-stage-detail {
  overflow: hidden;
  text-overflow: ellipsis;
  color: var(--faint);
  text-transform: none;
  letter-spacing: 0.02em;
}

.dock-stage[data-final="true"] .dock-stage-name {
  color: #f2c14e;
  text-shadow: 0 0 14px color-mix(in srgb, #f2c14e 55%, transparent);
}

.dock-hint {
  flex: 0 1 auto;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  color: var(--faint);
  text-transform: none;
  letter-spacing: 0.02em;
  transition: opacity 0.4s ease;
}

/* The stage readout wins when space is tight. */
@container dock (max-width: 560px) {
  .dock-hint {
    display: none;
  }
}

.dock-hint.is-quiet {
  opacity: 0;
}

.dock-bar {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  padding: 0.35rem 1rem 0.35rem 0.35rem;
  border: 1px solid color-mix(in srgb, var(--ink) 10%, transparent);
  border-radius: 999px;
  background: color-mix(in srgb, var(--bg) 58%, transparent);
  -webkit-backdrop-filter: blur(16px) saturate(150%);
  backdrop-filter: blur(16px) saturate(150%);
  box-shadow: 0 10px 30px -18px rgba(0, 0, 0, 0.6);
}

.dock-play {
  display: grid;
  flex: none;
  place-items: center;
  width: 2.1rem;
  height: 2.1rem;
  padding: 0;
  border: 0;
  border-radius: 50%;
  background: var(--ink);
  color: var(--bg);
  cursor: pointer;
  transition: transform var(--dur-quick) var(--ease-out), box-shadow var(--dur-quick) ease;
}

.dock-play:hover {
  transform: scale(1.06);
  box-shadow: 0 0 0 5px color-mix(in srgb, var(--ink) 10%, transparent);
}

.dock-play:active {
  transform: scale(0.96);
}

.dock-play svg {
  width: 0.85rem;
  height: 0.85rem;
}

.dock-track {
  --p: 0;
  position: relative;
  flex: 1;
  height: 2rem;
  cursor: pointer;
  touch-action: none;
  outline: none;
}

.dock-rail {
  position: absolute;
  top: 50%;
  right: 0;
  left: 0;
  height: 4px;
  margin-top: -2px;
  border-radius: 4px;
  background: color-mix(in srgb, var(--ink) 13%, transparent);
  overflow: hidden;
}

.dock-fill {
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, var(--accent-2), var(--accent) 70%, #f2c14e);
  transform: scaleX(var(--p));
  transform-origin: left;
}

.dock-tick {
  position: absolute;
  top: 50%;
  left: var(--at);
  width: 8px;
  height: 8px;
  margin: -4px 0 0 -4px;
  border: 1.5px solid color-mix(in srgb, var(--ink) 30%, transparent);
  border-radius: 50%;
  background: var(--surface);
  transition: background-color 0.3s ease, border-color 0.3s ease;
}

.dock-tick:first-of-type {
  margin-left: 0;
}

.dock-tick.is-passed {
  border-color: var(--accent);
  background: var(--accent);
}

.dock-tick:last-of-type.is-passed {
  border-color: #f2c14e;
  background: #f2c14e;
  box-shadow: 0 0 10px #f2c14e;
}

.dock-thumb {
  position: absolute;
  top: 50%;
  left: calc(var(--p) * 100%);
  width: 14px;
  height: 14px;
  margin: -7px 0 0 -7px;
  border-radius: 50%;
  background: var(--ink);
  box-shadow:
    0 0 0 4px color-mix(in srgb, var(--accent) 22%, transparent),
    0 2px 10px rgba(0, 0, 0, 0.45);
  transition: transform var(--dur-quick) var(--ease-out);
}

.dock-track:hover .dock-thumb,
.dock-track.is-scrubbing .dock-thumb {
  transform: scale(1.25);
}

.dock-track:focus-visible .dock-thumb {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

.dock-play:focus-visible,
.dock-reset:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

/* --- reset view --- */
.dock-reset {
  position: absolute;
  top: 0.65rem;
  right: 0.65rem;
  z-index: 3;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.35rem 0.7rem 0.35rem 0.55rem;
  border: 1px solid color-mix(in srgb, var(--ink) 12%, transparent);
  border-radius: 999px;
  background: color-mix(in srgb, var(--bg) 60%, transparent);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 0.66rem;
  letter-spacing: 0.04em;
  cursor: pointer;
  animation: dock-pop 0.3s var(--ease-out);
  transition: color var(--dur-quick) ease, border-color var(--dur-quick) ease;
}

.dock-reset[hidden] {
  display: none;
}

.dock-reset:hover {
  border-color: color-mix(in srgb, var(--ink) 25%, transparent);
  color: var(--ink);
}

.dock-reset svg {
  width: 0.8rem;
  height: 0.8rem;
}

@keyframes dock-pop {
  from {
    opacity: 0;
    transform: scale(0.9);
  }
}

@container dock (max-width: 420px) {
  .dock-stage-detail,
  .dock-reset span {
    display: none;
  }

  .dock-reset {
    padding: 0.4rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .dock-ui,
  .dock-reset {
    transition: none;
    animation: none;
  }
}