:root {
  --bg: #0c1222;
  --card: #151d30;
  --text: #eef2ff;
  --muted: #94a3b8;
  --accent: #38bdf8;
  --live: #22c55e;
  --warn: #eab308;
  --error: #ef4444;
  --border: rgba(255, 255, 255, 0.08);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: system-ui, -apple-system, 'Segoe UI', sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.45;
  overscroll-behavior: none;
  -webkit-text-size-adjust: 100%;
  padding: env(safe-area-inset-top) env(safe-area-inset-right)
    env(safe-area-inset-bottom) env(safe-area-inset-left);
}

.app {
  max-width: 1100px;
  margin: 0 auto;
  padding: 1rem 1rem 2rem;
  padding-left: max(1rem, env(safe-area-inset-left));
  padding-right: max(1rem, env(safe-area-inset-right));
  padding-bottom: max(2rem, env(safe-area-inset-bottom));
}

.header { margin-bottom: 1rem; }

.header-main {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem;
}

h1 {
  margin: 0;
  font-size: clamp(1.35rem, 4vw, 1.75rem);
  font-weight: 700;
}

.badge {
  padding: 0.25rem 0.7rem;
  border-radius: 999px;
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.badge-live { background: rgba(34, 197, 94, 0.2); color: var(--live); }
.badge-loading { background: rgba(234, 179, 8, 0.2); color: var(--warn); }
.badge-error { background: rgba(239, 68, 68, 0.2); color: var(--error); }

.time-label {
  margin: 0.5rem 0 0;
  font-size: clamp(1.1rem, 3vw, 1.45rem);
  font-weight: 600;
  font-variant-numeric: tabular-nums;
}

.meta-info {
  margin: 0.25rem 0 0;
  color: var(--muted);
  font-size: 0.88rem;
}

.viewer { margin-bottom: 1rem; }

.app:fullscreen,
.app:-webkit-full-screen {
  max-width: none;
  width: 100%;
  height: 100%;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  background: #000;
  position: relative;
}

.app:fullscreen .header,
.app:-webkit-full-screen .header {
  display: none;
}

.app:fullscreen .viewer,
.app:-webkit-full-screen .viewer {
  flex: 1 1 auto;
  min-height: 0;
  margin: 0;
}

.app:fullscreen .image-wrap,
.app:-webkit-full-screen .image-wrap {
  height: 100%;
  max-height: none;
  aspect-ratio: unset;
  border-radius: 0;
  border: none;
}

.app:fullscreen .controls,
.app:-webkit-full-screen .controls,
.app:fullscreen .controls.card,
.app:-webkit-full-screen .controls.card {
  flex: 0 0 auto;
  display: grid;
  grid-template-columns: 1.75rem 1.75rem minmax(0, 1fr) auto;
  align-items: center;
  column-gap: 0.35rem;
  background: linear-gradient(
    to top,
    rgba(0, 0, 0, 0.62) 0%,
    rgba(0, 0, 0, 0.28) 55%,
    transparent 100%
  );
  border: none;
  border-radius: 0;
  box-shadow: none;
  padding: 0.2rem max(0.45rem, env(safe-area-inset-left))
    max(0.3rem, env(safe-area-inset-bottom)) max(0.45rem, env(safe-area-inset-right));
  min-height: 0;
}

.app:fullscreen .live-hint,
.app:-webkit-full-screen .live-hint,
.app:fullscreen .slider-labels,
.app:-webkit-full-screen .slider-labels,
.app:fullscreen #btnRefresh,
.app:-webkit-full-screen #btnRefresh,
.app:fullscreen #btnLiveEnd,
.app:-webkit-full-screen #btnLiveEnd {
  display: none !important;
}

.app:fullscreen .row-main,
.app:-webkit-full-screen .row-main {
  display: contents;
  margin: 0;
}

.app:fullscreen .slider-block,
.app:-webkit-full-screen .slider-block {
  display: contents;
  margin: 0;
}

.app:fullscreen #btnPrev,
.app:-webkit-full-screen #btnPrev {
  grid-column: 1;
  grid-row: 1;
}

.app:fullscreen #btnNext,
.app:-webkit-full-screen #btnNext {
  grid-column: 2;
  grid-row: 1;
}

.app:fullscreen #liveSlider,
.app:-webkit-full-screen #liveSlider {
  grid-column: 3;
  grid-row: 1;
  width: 100%;
  min-height: 1.35rem;
  height: 1.35rem;
  margin: 0;
  --buffer-start: 0%;
  --buffer-end: 0%;
  -webkit-appearance: none;
  appearance: none;
  background: transparent;
}

.app:fullscreen #liveCacheCounter,
.app:-webkit-full-screen #liveCacheCounter {
  grid-column: 4;
  grid-row: 1;
  display: block !important;
  margin: 0;
  padding: 0.1rem 0.35rem;
  font-size: 0.72rem;
  font-weight: 700;
  white-space: nowrap;
  color: #fff;
  text-shadow: 0 1px 3px rgba(0, 0, 0, 0.95);
  background: rgba(0, 0, 0, 0.45);
  border-radius: 4px;
  border: 1px solid rgba(255, 255, 255, 0.18);
}

.app:fullscreen #btnPrev,
.app:-webkit-full-screen #btnPrev,
.app:fullscreen #btnNext,
.app:-webkit-full-screen #btnNext {
  min-height: 1.75rem;
  height: 1.75rem;
  width: 1.75rem;
  padding: 0;
  font-size: 0.72rem;
  line-height: 1;
  background: rgba(0, 0, 0, 0.5);
  border-color: rgba(255, 255, 255, 0.28);
  color: #fff;
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.9);
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.45);
}

.app:fullscreen #liveSlider::-webkit-slider-runnable-track,
.app:-webkit-full-screen #liveSlider::-webkit-slider-runnable-track {
  height: 5px;
  border-radius: 3px;
  background:
    repeating-linear-gradient(
      to right,
      rgba(255, 255, 255, 0.08) 0,
      rgba(255, 255, 255, 0.08) 1px,
      transparent 1px,
      transparent calc(100% / 30)
    ),
    linear-gradient(
      to right,
      rgba(255, 255, 255, 0.22) 0%,
      rgba(255, 255, 255, 0.22) var(--buffer-start),
      rgba(56, 189, 248, 0.9) var(--buffer-start),
      rgba(56, 189, 248, 0.9) var(--buffer-end),
      rgba(255, 255, 255, 0.22) var(--buffer-end),
      rgba(255, 255, 255, 0.22) 100%
    );
  box-shadow: 0 0 0 1px rgba(0, 0, 0, 0.55);
}

.app:fullscreen #liveSlider::-webkit-slider-thumb,
.app:-webkit-full-screen #liveSlider::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 14px;
  height: 14px;
  margin-top: -4.5px;
  border-radius: 50%;
  background: #fff;
  border: 2px solid rgba(56, 189, 248, 0.95);
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.65);
}

.app:fullscreen #liveSlider::-moz-range-track,
.app:-webkit-full-screen #liveSlider::-moz-range-track {
  height: 5px;
  border-radius: 3px;
  background:
    repeating-linear-gradient(
      to right,
      rgba(255, 255, 255, 0.08) 0,
      rgba(255, 255, 255, 0.08) 1px,
      transparent 1px,
      transparent calc(100% / 30)
    ),
    rgba(255, 255, 255, 0.22);
  box-shadow: 0 0 0 1px rgba(0, 0, 0, 0.55);
}

.app:fullscreen #liveSlider::-moz-range-progress,
.app:-webkit-full-screen #liveSlider::-moz-range-progress {
  height: 5px;
  border-radius: 3px 0 0 3px;
  background: rgba(56, 189, 248, 0.9);
}

.app:fullscreen #liveSlider::-moz-range-thumb,
.app:-webkit-full-screen #liveSlider::-moz-range-thumb {
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: #fff;
  border: 2px solid rgba(56, 189, 248, 0.95);
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.65);
}

.btn-fs-overlay {
  position: absolute;
  top: max(0.55rem, env(safe-area-inset-top));
  right: max(0.55rem, env(safe-area-inset-right));
  z-index: 20;
  border: 1px solid rgba(255, 255, 255, 0.35);
  background: rgba(0, 0, 0, 0.62);
  color: #fff;
  border-radius: 8px;
  width: 2.75rem;
  height: 2.75rem;
  cursor: pointer;
  font-size: 1rem;
  line-height: 1;
  touch-action: manipulation;
  pointer-events: auto;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.55);
  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.9);
}

.app:fullscreen .btn-fs-overlay,
.app:-webkit-full-screen .btn-fs-overlay {
  position: fixed;
  z-index: 2147483646;
}

.btn-fs-overlay:hover {
  background: rgba(0, 0, 0, 0.75);
}

.image-wrap {
  position: relative;
  background: #000;
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid var(--border);
  aspect-ratio: 16 / 10;
  display: flex;
  align-items: center;
  justify-content: center;
  touch-action: none;
  cursor: default;
  user-select: none;
  -webkit-user-select: none;
  -webkit-touch-callout: none;
}

.image-wrap.zoomable { cursor: grab; }
.image-wrap.panning { cursor: grabbing; }

#mainImage {
  width: 100%;
  height: 100%;
  object-fit: contain;
  display: block;
  opacity: 1;
  transition: opacity 0.15s ease;
  transform-origin: 50% 50%;
  will-change: transform;
  user-select: none;
  -webkit-user-drag: none;
}

#mainImage.fading { opacity: 0.35; }

.btn-fs { margin-left: auto; }

.live-hint {
  margin: 0 0 0.35rem;
  font-size: 0.78rem;
  color: var(--muted);
}

.live-cache-counter {
  margin: 0 0 0.5rem;
  font-size: 0.85rem;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
  color: var(--accent);
}

.loader.subtle {
  inset: auto;
  top: 0.65rem;
  right: 0.65rem;
  left: auto;
  bottom: auto;
  width: auto;
  height: auto;
  min-height: 0;
  padding: 0.35rem 0.65rem;
  border-radius: 8px;
  background: rgba(0, 0, 0, 0.62);
  font-size: 0.78rem;
  font-weight: 500;
  pointer-events: none;
}

.loader {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 0, 0, 0.45);
  font-weight: 600;
}

.error-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  text-align: center;
  background: rgba(0, 0, 0, 0.7);
  color: var(--error);
}

.hidden { display: none !important; }

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1rem;
}

.row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  align-items: center;
  margin-bottom: 0.75rem;
}

.row:last-child { margin-bottom: 0; }

.btn {
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.06);
  color: var(--text);
  border-radius: 8px;
  padding: 0.45rem 0.85rem;
  cursor: pointer;
  font-size: 0.9rem;
  touch-action: manipulation;
  min-height: 2.75rem;
}

.btn:hover { background: rgba(255, 255, 255, 0.1); }
.btn:disabled { opacity: 0.45; cursor: not-allowed; }

.btn-live {
  background: rgba(34, 197, 94, 0.15);
  border-color: rgba(34, 197, 94, 0.35);
  color: var(--live);
  font-weight: 600;
}

.btn-live.active {
  background: var(--live);
  color: #052e16;
}

.btn-ghost { background: transparent; }
.btn-sm { padding: 0.35rem 0.65rem; font-size: 0.82rem; }

.slider-block { margin: 0.5rem 0 0; }

#liveSlider {
  width: 100%;
  accent-color: var(--accent);
  min-height: 2.75rem;
  touch-action: manipulation;
}

.slider-labels {
  display: flex;
  justify-content: space-between;
  font-size: 0.75rem;
  color: var(--muted);
  margin-top: 0.25rem;
}

@media (pointer: coarse) {
  .btn {
    min-height: 3rem;
    padding: 0.55rem 1rem;
    font-size: 1rem;
  }

  .btn-sm {
    min-height: 3rem;
    padding: 0.5rem 0.85rem;
    font-size: 0.95rem;
  }

  #liveSlider {
    min-height: 3rem;
  }

  .app:fullscreen #liveSlider,
  .app:-webkit-full-screen #liveSlider {
    min-height: 1.75rem;
    height: 1.75rem;
  }

  .app:fullscreen #btnPrev,
  .app:-webkit-full-screen #btnPrev,
  .app:fullscreen #btnNext,
  .app:-webkit-full-screen #btnNext {
    min-height: 2rem;
    height: 2rem;
    width: 2rem;
  }

  .image-wrap {
    border-radius: 8px;
  }
}

@media (max-width: 600px) {
  .app {
    padding: 0.75rem 0.75rem 1.5rem;
  }

  .header-main {
    gap: 0.5rem;
  }

  .row-main {
    justify-content: center;
  }
}

.traffic-stats {
  margin-top: 1.25rem;
  padding-top: 0.65rem;
  border-top: 1px solid var(--border);
  font-size: 0.72rem;
  color: var(--muted);
  line-height: 1.55;
}

.traffic-stats p {
  margin: 0.1rem 0;
}

.traffic-label {
  opacity: 0.9;
}

.app:fullscreen .traffic-stats,
.app:-webkit-full-screen .traffic-stats {
  display: none !important;
}