:root {
  color-scheme: dark;
  --ink: #f6f4eb;
  --muted: rgba(246, 244, 235, 0.68);
  --line: rgba(255, 255, 255, 0.2);
  --panel: rgba(12, 17, 14, 0.72);
  --accent: #d5f06a;
  --stage-ratio: 1.5384615385;
}

* {
  box-sizing: border-box;
}

html,
body {
  min-width: 320px;
  min-height: 100%;
  margin: 0;
  background: #101612;
}

body {
  min-height: 100dvh;
  overflow: hidden;
  color: var(--ink);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  -webkit-font-smoothing: antialiased;
}

button,
a {
  color: inherit;
}

button {
  font: inherit;
}

.viewer {
  position: relative;
  display: grid;
  width: 100vw;
  height: 100dvh;
  place-items: center;
  isolation: isolate;
  overflow: hidden;
  background:
    radial-gradient(circle at 50% 38%, #3b4a40 0, #172019 48%, #0a0d0b 100%);
}

.stage-shell {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
}

.stage {
  position: relative;
  width: 100vw;
  height: 100dvh;
  overflow: hidden;
  touch-action: none;
  cursor: grab;
  user-select: none;
  -webkit-user-select: none;
}

.stage.is-dragging {
  cursor: grabbing;
}

.stage img,
.stage__shade {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.stage img {
  display: block;
  object-fit: cover;
  pointer-events: none;
  -webkit-user-drag: none;
}

.stage__shade {
  pointer-events: none;
  background:
    linear-gradient(180deg, rgba(4, 8, 5, 0.22), transparent 24%, transparent 68%, rgba(4, 8, 5, 0.28)),
    linear-gradient(90deg, rgba(4, 8, 5, 0.12), transparent 18%, transparent 82%, rgba(4, 8, 5, 0.12));
}

.topbar {
  position: absolute;
  z-index: 5;
  top: 0;
  left: 0;
  display: flex;
  width: 100%;
  align-items: center;
  justify-content: space-between;
  padding: max(22px, env(safe-area-inset-top)) max(24px, env(safe-area-inset-right)) 0 max(24px, env(safe-area-inset-left));
  pointer-events: none;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--ink);
  text-decoration: none;
  pointer-events: auto;
}

.brand__mark {
  display: grid;
  width: 42px;
  height: 42px;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: 50%;
  background: rgba(9, 13, 10, 0.22);
  font: 600 18px/1 Georgia, serif;
  backdrop-filter: blur(12px);
}

.brand strong,
.brand small {
  display: block;
  text-transform: uppercase;
}

.brand strong {
  font: 600 13px/1.1 ui-sans-serif, system-ui, sans-serif;
  letter-spacing: 0.2em;
}

.brand small {
  margin-top: 5px;
  color: var(--muted);
  font-size: 9px;
  letter-spacing: 0.32em;
}

.topbar__actions {
  display: flex;
  align-items: center;
  gap: 12px;
  pointer-events: auto;
}

.frame-counter {
  display: flex;
  align-items: center;
  gap: 7px;
  color: var(--muted);
  font-size: 10px;
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.16em;
}

.frame-counter i {
  width: 26px;
  height: 1px;
  background: var(--line);
}

.frame-counter span:first-child {
  color: var(--ink);
}

.icon-button,
.step-button,
.play-button {
  display: grid;
  place-items: center;
  padding: 0;
  border: 1px solid var(--line);
  border-radius: 50%;
  background: var(--panel);
  cursor: pointer;
  backdrop-filter: blur(14px);
  transition: border-color 180ms ease, background 180ms ease, transform 180ms ease;
}

.icon-button {
  width: 42px;
  height: 42px;
}

.icon-button svg,
.step-button svg,
.play-button svg {
  width: 18px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.7;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.icon-button:hover,
.step-button:hover,
.play-button:hover {
  border-color: rgba(255, 255, 255, 0.5);
  background: rgba(25, 34, 28, 0.88);
  transform: translateY(-2px);
}

button:focus-visible,
a:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

.orientation {
  position: absolute;
  z-index: 4;
  top: 50%;
  right: max(25px, env(safe-area-inset-right));
  display: flex;
  align-items: center;
  gap: 13px;
  transform: translateY(-50%);
  pointer-events: none;
}

.orientation > span {
  color: var(--muted);
  font-size: 9px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  writing-mode: vertical-rl;
  transform: rotate(180deg);
}

.compass {
  position: relative;
  display: grid;
  width: 48px;
  height: 48px;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: 50%;
  background: rgba(12, 17, 14, 0.42);
  backdrop-filter: blur(10px);
}

.compass span {
  position: absolute;
  top: 5px;
  color: var(--ink);
  font-size: 8px;
}

.compass i {
  position: absolute;
  width: 1px;
  height: 30px;
  background: linear-gradient(var(--accent) 0 45%, rgba(255, 255, 255, 0.35) 45% 100%);
  transition: transform 100ms linear;
}

.drag-hint {
  position: absolute;
  z-index: 4;
  bottom: 102px;
  left: 50%;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 9px 13px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--panel);
  color: var(--muted);
  font-size: 10px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  transform: translateX(-50%);
  pointer-events: none;
  backdrop-filter: blur(12px);
  transition: opacity 400ms ease, transform 400ms ease;
}

.viewer.has-interacted .drag-hint {
  opacity: 0;
  transform: translate(-50%, 8px);
}

.drag-hint svg {
  width: 38px;
  fill: none;
  stroke: var(--ink);
  stroke-width: 1.2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.controls {
  position: absolute;
  z-index: 5;
  bottom: max(28px, env(safe-area-inset-bottom));
  left: 50%;
  display: flex;
  align-items: center;
  gap: 9px;
  transform: translateX(-50%);
}

.step-button {
  width: 42px;
  height: 42px;
}

.play-button {
  width: 54px;
  height: 54px;
  border-color: rgba(255, 255, 255, 0.34);
}

.play-button .play-icon {
  fill: currentColor;
  stroke: none;
}

.play-button .pause-icon,
.play-button.is-playing .play-icon {
  display: none;
}

.play-button.is-playing .pause-icon {
  display: block;
}

.loading {
  position: absolute;
  z-index: 6;
  right: max(24px, env(safe-area-inset-right));
  bottom: max(30px, env(safe-area-inset-bottom));
  width: min(230px, calc(100vw - 48px));
  transition: opacity 350ms ease, transform 350ms ease;
}

.loading.is-complete {
  opacity: 0;
  transform: translateY(8px);
  pointer-events: none;
}

.loading__copy {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 8px;
  color: var(--muted);
  font-size: 9px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.loading__copy strong {
  color: var(--ink);
  font-size: 10px;
  font-variant-numeric: tabular-nums;
}

.loading__track {
  height: 2px;
  overflow: hidden;
  background: rgba(255, 255, 255, 0.16);
}

.loading__track i {
  display: block;
  width: 1%;
  height: 100%;
  background: var(--accent);
  transition: width 150ms ease;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

noscript {
  position: fixed;
  z-index: 20;
  inset: 0;
  display: grid;
  place-items: center;
  padding: 24px;
  background: #101612;
  color: #fff;
}

@media (max-width: 720px) {
  .topbar {
    padding-top: max(16px, env(safe-area-inset-top));
    padding-right: max(16px, env(safe-area-inset-right));
    padding-left: max(16px, env(safe-area-inset-left));
  }

  .brand__mark,
  .icon-button {
    width: 38px;
    height: 38px;
  }

  .brand strong {
    font-size: 11px;
  }

  .frame-counter,
  .orientation {
    display: none;
  }

  .drag-hint {
    bottom: 93px;
    white-space: nowrap;
  }

  .loading {
    right: 50%;
    bottom: max(19px, env(safe-area-inset-bottom));
    transform: translateX(50%);
  }

  .loading.is-complete {
    transform: translate(50%, 8px);
  }

  .controls {
    bottom: max(22px, env(safe-area-inset-bottom));
  }
}

@media (max-height: 520px) {
  .drag-hint {
    bottom: 72px;
  }

  .controls {
    bottom: 12px;
  }

  .loading {
    display: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }
}