/* shared reactive-video viewer
   minimal chrome. page background tint is driven by the current frame. */

:root {
  --v-bg: #0a0a0a;
  --v-bg-tint: #0a0a0a;
  --v-ink: #f4eee6;
  --v-ink-soft: #bfb7aa;
  --v-rule: rgba(255, 255, 255, 0.14);
  --v-chrome-bg: rgba(0, 0, 0, 0.38);
  --v-font: "Iowan Old Style", Georgia, serif;
  --v-mono: "Space Mono", ui-monospace, Menlo, monospace;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  height: 100%;
  background: var(--v-bg);
  color: var(--v-ink);
  font-family: var(--v-font);
  overflow: hidden;
}

.viewer {
  position: relative;
  min-height: 100vh;
  min-height: 100dvh;
  display: grid;
  grid-template-rows: auto 1fr;
  background: var(--v-bg-tint, var(--v-bg));
  transition: background 800ms ease;
}

/* tint wash: takes the hue of the current video frame.
   sits behind all content and covers the whole viewport. */
.viewer__wash {
  position: fixed; inset: 0;
  background: var(--v-bg-tint, var(--v-bg));
  transition: background 800ms ease;
  z-index: 0;
  pointer-events: none;
}

/* top chrome */
.viewer__top {
  position: relative;
  z-index: 3;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.25rem 1.5rem;
  font-family: var(--v-mono);
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: lowercase;
  color: var(--v-ink-soft);
  opacity: 0.85;
  transition: opacity 400ms ease;
}
.viewer.is-idle .viewer__top { opacity: 0; }

.viewer__back {
  color: inherit;
  text-decoration: none;
  border-bottom: 1px dotted transparent;
  transition: color 200ms ease, border-color 200ms ease;
}
.viewer__back:hover, .viewer__back:focus-visible {
  color: var(--v-ink);
  border-color: currentColor;
  outline: none;
}

.viewer__title {
  font-family: var(--v-font);
  font-style: italic;
  letter-spacing: 0.04em;
  text-transform: none;
  color: var(--v-ink);
}

/* stage */
.viewer__stage {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem 1rem 6rem;
  overflow: hidden;
}

.viewer__frame {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  max-width: 100%;
  max-height: 100%;
  box-shadow: 0 30px 80px -30px rgba(0, 0, 0, 0.75);
  border-radius: 2px;
  overflow: hidden;
}

/* the <video> fills the frame's intrinsic box */
.viewer__video {
  display: block;
  max-width: 92vw;
  max-height: calc(100vh - 9rem);
  max-height: calc(100dvh - 9rem);
  width: auto;
  height: auto;
  background: #000;
}

/* portrait orientation (tall sources): constrain height first */
.viewer[data-orientation="portrait"] .viewer__video {
  max-height: calc(100vh - 9rem);
  max-height: calc(100dvh - 9rem);
  max-width: min(92vw, calc((100vh - 9rem) * 9 / 16));
  max-width: min(92vw, calc((100dvh - 9rem) * 9 / 16));
}

/* center play overlay (before first play or when paused and idle) */
.viewer__play-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 4;
  background: rgba(0, 0, 0, 0.18);
  opacity: 0;
  pointer-events: none;
  transition: opacity 300ms ease;
}
.viewer__play-overlay.is-visible {
  opacity: 1;
  pointer-events: auto;
}
.viewer__play-overlay-button {
  all: unset;
  cursor: pointer;
  width: 72px;
  height: 72px;
  border-radius: 50%;
  background: rgba(10, 10, 10, 0.55);
  border: 1px solid rgba(255, 255, 255, 0.28);
  color: var(--v-ink);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform 200ms ease, background 200ms ease;
}
.viewer__play-overlay-button:hover,
.viewer__play-overlay-button:focus-visible {
  transform: scale(1.05);
  background: rgba(20, 20, 20, 0.75);
  outline: none;
}
.viewer__play-overlay-button svg { width: 26px; height: 26px; display: block; }

/* bottom controls */
.viewer__controls {
  position: fixed;
  left: 0; right: 0; bottom: 0;
  z-index: 5;
  padding: 1rem 1.5rem 1.25rem;
  background: linear-gradient(to top, rgba(0,0,0,0.55), rgba(0,0,0,0));
  display: grid;
  grid-template-columns: auto 1fr auto auto;
  align-items: center;
  gap: 0.9rem;
  color: var(--v-ink);
  opacity: 1;
  transition: opacity 400ms ease, transform 400ms ease;
}
.viewer.is-idle .viewer__controls {
  opacity: 0;
  transform: translateY(4px);
  pointer-events: none;
}

.viewer__btn {
  all: unset;
  cursor: pointer;
  width: 36px;
  height: 36px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 2px;
  color: var(--v-ink);
  transition: color 180ms ease, background 180ms ease;
}
.viewer__btn:hover,
.viewer__btn:focus-visible {
  background: rgba(255, 255, 255, 0.08);
  outline: none;
}
.viewer__btn svg { width: 18px; height: 18px; display: block; }

/* scrub — native <input type="range"> with custom styling */
.viewer__scrub {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  min-width: 0;    /* allow collapse inside the 1fr grid track */
  height: 24px;
  background: transparent;
  padding: 0;
  margin: 0;
  cursor: pointer;
  touch-action: none;
  outline: none;
  --pct: 0%;
}
.viewer__scrub:focus-visible { outline: none; }

/* chromium / webkit track — gradient provides the “fill” */
.viewer__scrub::-webkit-slider-runnable-track {
  height: 2px;
  border-radius: 1px;
  background: linear-gradient(
    to right,
    var(--v-ink) 0%,
    var(--v-ink) var(--pct),
    rgba(255, 255, 255, 0.22) var(--pct),
    rgba(255, 255, 255, 0.22) 100%
  );
}
.viewer__scrub::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 10px;
  height: 10px;
  margin-top: -4px; /* center on 2px track */
  border-radius: 50%;
  background: var(--v-ink);
  border: none;
  cursor: pointer;
  transform: scale(0);
  transition: transform 180ms ease;
}
.viewer__scrub:hover::-webkit-slider-thumb,
.viewer__scrub:active::-webkit-slider-thumb,
.viewer__scrub:focus-visible::-webkit-slider-thumb {
  transform: scale(1);
}

/* firefox */
.viewer__scrub::-moz-range-track {
  height: 2px;
  border-radius: 1px;
  background: rgba(255, 255, 255, 0.22);
}
.viewer__scrub::-moz-range-progress {
  height: 2px;
  border-radius: 1px;
  background: var(--v-ink);
}
.viewer__scrub::-moz-range-thumb {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--v-ink);
  border: none;
  cursor: pointer;
  transform: scale(0);
  transition: transform 180ms ease;
}
.viewer__scrub:hover::-moz-range-thumb,
.viewer__scrub:active::-moz-range-thumb,
.viewer__scrub:focus-visible::-moz-range-thumb {
  transform: scale(1);
}

/* volume */
.viewer__vol {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.viewer__vol-slider {
  -webkit-appearance: none;
  appearance: none;
  width: 80px;
  height: 2px;
  background: rgba(255, 255, 255, 0.25);
  border-radius: 1px;
  outline: none;
  opacity: 0.9;
  transition: opacity 200ms ease, width 240ms ease;
}
.viewer__vol-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 10px; height: 10px;
  background: var(--v-ink);
  border-radius: 50%;
  cursor: pointer;
  border: none;
}
.viewer__vol-slider::-moz-range-thumb {
  width: 10px; height: 10px;
  background: var(--v-ink);
  border-radius: 50%;
  cursor: pointer;
  border: none;
}

.viewer__time {
  font-family: var(--v-mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  color: var(--v-ink-soft);
  font-variant-numeric: tabular-nums;
  min-width: 8.5ch;
  text-align: right;
}

/* responsive: collapse volume at narrow widths */
@media (max-width: 640px) {
  .viewer__controls {
    grid-template-columns: auto 1fr auto;
    padding: 0.75rem 1rem 1rem;
  }
  .viewer__vol { display: none; }
  .viewer__time { font-size: 0.65rem; min-width: 7ch; }
}

/* reduced motion: drop the wash transition */
@media (prefers-reduced-motion: reduce) {
  .viewer,
  .viewer__wash,
  .viewer__play-overlay,
  .viewer__controls,
  .viewer__top { transition: none; }
}