:root {
  color-scheme: dark;
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Display", "SF Pro Text", "PingFang SC", "Noto Sans CJK SC", "Microsoft YaHei", sans-serif;
  background: #000;
  color: #fff;
  font-synthesis: none;
  --accent: #fff;
  --muted: rgba(255, 255, 255, 0.56);
  --hairline: rgba(255, 255, 255, 0.14);
  --panel: rgba(19, 19, 19, 0.82);
  --subtitle-scale: 1;
}

* {
  box-sizing: border-box;
}

html,
body {
  width: 100%;
  min-height: 100%;
  margin: 0;
  background: #000;
  overscroll-behavior: none;
}

body {
  min-height: 100dvh;
  -webkit-tap-highlight-color: transparent;
}

button,
input,
select {
  font: inherit;
}

button,
select {
  color: inherit;
}

button {
  border: 0;
  cursor: pointer;
}

button:focus-visible,
select:focus-visible,
input:focus-visible {
  outline: 2px solid #fff;
  outline-offset: 3px;
}

svg {
  display: block;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.8;
}

[hidden] {
  display: none !important;
}

.app {
  width: 100%;
  min-height: 100dvh;
  background: #000;
}

.import-view {
  width: min(100% - 40px, 520px);
  min-height: 100dvh;
  margin: 0 auto;
  padding: max(48px, calc(env(safe-area-inset-top) + 28px)) 0 max(28px, env(safe-area-inset-bottom));
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.brand {
  display: flex;
  align-items: center;
  gap: 15px;
  margin: 0 2px 34px;
}

.brand-mark {
  width: 48px;
  height: 48px;
  display: grid;
  place-items: center;
  border: 1px solid rgba(255, 255, 255, 0.85);
  border-radius: 15px;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.1);
}

.brand-mark span {
  font-size: 22px;
  font-weight: 650;
}

.eyebrow {
  margin: 0 0 3px;
  color: var(--muted);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.2em;
}

h1 {
  margin: 0;
  font-size: 28px;
  font-weight: 680;
  letter-spacing: -0.035em;
}

.drop-zone {
  position: relative;
  min-height: 285px;
  padding: 38px 28px 30px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  border: 1px dashed rgba(255, 255, 255, 0.25);
  border-radius: 24px;
  background: linear-gradient(145deg, rgba(255, 255, 255, 0.055), rgba(255, 255, 255, 0.018));
  transition: border-color 180ms ease, background 180ms ease, transform 180ms ease;
}

.drop-zone.is-dragging {
  border-color: #fff;
  background: rgba(255, 255, 255, 0.08);
  transform: scale(1.01);
}

.file-input {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
}

.upload-icon {
  width: 52px;
  height: 52px;
  margin-bottom: 22px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.09);
}

.upload-icon svg {
  width: 24px;
  height: 24px;
}

.drop-title {
  margin: 0;
  font-size: 19px;
  font-weight: 620;
}

.drop-help {
  margin: 7px 0 24px;
  color: var(--muted);
  font-size: 14px;
}

.primary-button {
  min-width: 132px;
  min-height: 48px;
  padding: 0 24px;
  border-radius: 999px;
  background: #fff;
  color: #000;
  font-weight: 650;
  transition: transform 120ms ease, background 120ms ease;
}

.primary-button:active {
  transform: scale(0.97);
  background: rgba(255, 255, 255, 0.82);
}

.import-options {
  min-height: 48px;
  margin: 16px 2px 0;
  padding: 0 4px 0 13px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border: 1px solid var(--hairline);
  border-radius: 14px;
  color: var(--muted);
  font-size: 13px;
}

.import-options select,
.speed-setting select {
  min-height: 36px;
  padding: 0 28px 0 10px;
  border: 0;
  border-radius: 9px;
  background-color: rgba(255, 255, 255, 0.07);
  color: #fff;
}

.restore-button {
  width: 100%;
  min-height: 58px;
  margin-top: 12px;
  padding: 10px 15px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  border: 1px solid var(--hairline);
  border-radius: 14px;
  background: transparent;
  text-align: left;
  font-size: 13px;
}

.restore-name {
  max-width: 58%;
  overflow: hidden;
  color: var(--muted);
  text-overflow: ellipsis;
  white-space: nowrap;
}

.privacy-note {
  margin: 22px 0 0;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  color: rgba(255, 255, 255, 0.42);
  font-size: 12px;
}

.privacy-note svg {
  width: 14px;
  height: 14px;
}

.player-view {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100dvh;
  overflow: hidden;
  background: #000;
  touch-action: manipulation;
}

.stage {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  padding: max(90px, calc(env(safe-area-inset-top) + 72px)) max(24px, calc(env(safe-area-inset-right) + 24px)) max(170px, calc(env(safe-area-inset-bottom) + 150px)) max(24px, calc(env(safe-area-inset-left) + 24px));
  user-select: none;
  -webkit-user-select: none;
}

.subtitle {
  width: min(100%, 1280px);
  color: #fff;
  font-size: clamp(30px, calc(7.2vmin * var(--subtitle-scale)), 96px);
  font-weight: 610;
  line-height: 1.32;
  letter-spacing: 0.005em;
  text-align: center;
  text-wrap: balance;
  white-space: pre-line;
  overflow-wrap: anywhere;
  opacity: 0;
  transform: translateY(7px);
  transition: opacity 110ms ease, transform 110ms ease;
}

.subtitle.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.empty-cue {
  position: absolute;
  margin: 0;
  color: rgba(255, 255, 255, 0.24);
  font-size: 14px;
  letter-spacing: 0.04em;
  transition: opacity 180ms ease;
}

.player-view.is-playing .empty-cue,
.subtitle.is-visible + .empty-cue {
  opacity: 0;
}

.top-bar {
  position: absolute;
  z-index: 4;
  top: 0;
  left: 0;
  right: 0;
  min-height: calc(76px + env(safe-area-inset-top));
  padding: max(12px, env(safe-area-inset-top)) max(14px, calc(env(safe-area-inset-right) + 10px)) 14px max(14px, calc(env(safe-area-inset-left) + 10px));
  display: grid;
  grid-template-columns: 48px minmax(0, 1fr) 48px;
  align-items: center;
  gap: 10px;
  background: linear-gradient(to bottom, rgba(0, 0, 0, 0.96), rgba(0, 0, 0, 0));
}

.icon-button,
.transport-button,
.play-button {
  display: grid;
  place-items: center;
  background: rgba(255, 255, 255, 0.07);
  color: #fff;
  border-radius: 50%;
}

.icon-button {
  width: 46px;
  height: 46px;
}

.icon-button svg {
  width: 22px;
  height: 22px;
}

.file-meta {
  min-width: 0;
  text-align: center;
}

.file-name,
.cue-summary {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.file-name {
  margin: 0;
  font-size: 14px;
  font-weight: 600;
}

.cue-summary {
  margin: 3px 0 0;
  color: var(--muted);
  font-size: 11px;
}

.exit-fullscreen {
  display: none;
}

:fullscreen .enter-fullscreen {
  display: none;
}

:fullscreen .exit-fullscreen {
  display: block;
}

.control-dock {
  position: absolute;
  z-index: 4;
  left: 50%;
  bottom: max(14px, env(safe-area-inset-bottom));
  width: min(calc(100% - 28px - env(safe-area-inset-left) - env(safe-area-inset-right)), 720px);
  padding: 17px 18px 13px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 22px;
  background: var(--panel);
  box-shadow: 0 18px 60px rgba(0, 0, 0, 0.55);
  -webkit-backdrop-filter: blur(24px) saturate(140%);
  backdrop-filter: blur(24px) saturate(140%);
  transform: translateX(-50%);
}

.timeline-row {
  display: grid;
  grid-template-columns: 46px minmax(0, 1fr) 46px;
  align-items: center;
  gap: 8px;
}

.time-label {
  color: rgba(255, 255, 255, 0.58);
  font-size: 11px;
  font-variant-numeric: tabular-nums;
  text-align: center;
}

.timeline {
  --progress: 0%;
  width: 100%;
  height: 28px;
  margin: 0;
  appearance: none;
  -webkit-appearance: none;
  background: transparent;
  cursor: pointer;
}

.timeline::-webkit-slider-runnable-track {
  height: 4px;
  border-radius: 999px;
  background: linear-gradient(to right, #fff var(--progress), rgba(255, 255, 255, 0.2) var(--progress));
}

.timeline::-webkit-slider-thumb {
  width: 16px;
  height: 16px;
  margin-top: -6px;
  appearance: none;
  -webkit-appearance: none;
  border: 0;
  border-radius: 50%;
  background: #fff;
  box-shadow: 0 1px 7px rgba(0, 0, 0, 0.5);
}

.timeline::-moz-range-track {
  height: 4px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.2);
}

.timeline::-moz-range-progress {
  height: 4px;
  border-radius: 999px;
  background: #fff;
}

.timeline::-moz-range-thumb {
  width: 16px;
  height: 16px;
  border: 0;
  border-radius: 50%;
  background: #fff;
}

.transport-row {
  margin-top: 2px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: clamp(10px, 4vw, 25px);
}

.transport-button {
  width: 43px;
  height: 43px;
  background: transparent;
}

.transport-button svg {
  width: 24px;
  height: 24px;
}

.seek-button svg text {
  fill: currentColor;
  stroke: none;
  font-size: 8px;
  font-weight: 700;
}

.play-button {
  width: 58px;
  height: 58px;
  background: #fff;
  color: #000;
}

.play-button svg {
  width: 28px;
  height: 28px;
  stroke-width: 2;
}

.pause-icon {
  display: none;
}

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

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

.settings-row {
  min-height: 36px;
  margin-top: 8px;
  padding-top: 8px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  border-top: 1px solid rgba(255, 255, 255, 0.09);
}

.compact-setting {
  display: flex;
  align-items: center;
  gap: 5px;
  color: var(--muted);
  font-size: 11px;
}

.compact-setting button,
.compact-setting output {
  min-width: 38px;
  height: 30px;
  padding: 0 7px;
  display: grid;
  place-items: center;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.07);
  color: #fff;
  font-size: 11px;
  font-variant-numeric: tabular-nums;
}

.compact-setting output {
  min-width: 47px;
  background: transparent;
  color: var(--muted);
}

.speed-setting select {
  min-height: 30px;
  padding-left: 8px;
  font-size: 11px;
}

.player-chrome {
  opacity: 1;
  transition: opacity 240ms ease, transform 240ms ease;
}

.player-view.controls-hidden {
  cursor: none;
}

.player-view.controls-hidden .top-bar {
  opacity: 0;
  transform: translateY(-12px);
  pointer-events: none;
}

.player-view.controls-hidden .control-dock {
  opacity: 0;
  transform: translate(-50%, 14px);
  pointer-events: none;
}

.player-view.controls-hidden .stage {
  padding-top: max(32px, env(safe-area-inset-top));
  padding-bottom: max(32px, env(safe-area-inset-bottom));
}

.reveal-controls {
  position: absolute;
  z-index: 3;
  inset: 0;
  display: none;
  width: 100%;
  height: 100%;
  background: transparent;
}

.controls-hidden .reveal-controls {
  display: block;
}

.orientation-hint {
  position: absolute;
  z-index: 2;
  top: max(86px, calc(env(safe-area-inset-top) + 68px));
  left: 50%;
  padding: 9px 13px;
  display: none;
  align-items: center;
  gap: 8px;
  border: 1px solid var(--hairline);
  border-radius: 999px;
  background: rgba(20, 20, 20, 0.82);
  color: var(--muted);
  font-size: 11px;
  transform: translateX(-50%);
  white-space: nowrap;
}

.orientation-hint svg {
  width: 17px;
  height: 17px;
}

.toast {
  position: fixed;
  z-index: 20;
  left: 50%;
  bottom: max(26px, calc(env(safe-area-inset-bottom) + 18px));
  max-width: min(calc(100% - 36px), 560px);
  padding: 11px 16px;
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 12px;
  background: rgba(35, 35, 35, 0.94);
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.4);
  color: rgba(255, 255, 255, 0.9);
  font-size: 13px;
  line-height: 1.4;
  opacity: 0;
  pointer-events: none;
  transform: translate(-50%, 10px);
  transition: opacity 180ms ease, transform 180ms ease;
}

.toast.is-visible {
  opacity: 1;
  transform: translate(-50%, 0);
}

@media (orientation: portrait) and (pointer: coarse) {
  .player-view.is-playing .orientation-hint {
    display: flex;
  }
}

@media (orientation: landscape) {
  .stage {
    padding-top: max(76px, calc(env(safe-area-inset-top) + 58px));
    padding-right: max(64px, calc(env(safe-area-inset-right) + 44px));
    padding-bottom: max(130px, calc(env(safe-area-inset-bottom) + 110px));
    padding-left: max(64px, calc(env(safe-area-inset-left) + 44px));
  }

  .subtitle {
    font-size: clamp(30px, calc(7.8vmin * var(--subtitle-scale)), 94px);
  }

  .control-dock {
    padding: 12px 18px 10px;
  }

  .transport-row {
    margin-top: -2px;
  }

  .play-button {
    width: 52px;
    height: 52px;
  }

}

@media (orientation: landscape) and (max-height: 500px) {
  .top-bar {
    min-height: calc(58px + env(safe-area-inset-top));
    padding-top: max(7px, env(safe-area-inset-top));
  }

  .icon-button {
    width: 40px;
    height: 40px;
  }

  .cue-summary {
    display: none;
  }

  .control-dock {
    width: min(calc(100% - 180px - env(safe-area-inset-left) - env(safe-area-inset-right)), 620px);
    bottom: max(8px, env(safe-area-inset-bottom));
  }

  .stage {
    padding-top: max(48px, env(safe-area-inset-top));
    padding-bottom: max(102px, calc(env(safe-area-inset-bottom) + 92px));
  }

  .transport-button {
    width: 38px;
    height: 38px;
  }
}

@media (max-width: 420px) {
  .import-view {
    width: min(100% - 28px, 520px);
  }

  .drop-zone {
    min-height: 264px;
  }

  .control-dock {
    width: calc(100% - 20px - env(safe-area-inset-left) - env(safe-area-inset-right));
    padding-right: 12px;
    padding-left: 12px;
  }

  .transport-row {
    gap: 7px;
  }

  .settings-row {
    gap: 7px;
  }
}

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