:root {
  --bg: #f2f3f6;
  --panel: #ffffff;
  --text: #1a1c22;
  --muted: #6b7280;
  --border: #e3e5eb;
  --accent-green: #16a35f;
  --accent-red: #e0384f;
  --accent-blue: #3763d9;
  --shadow-color: rgba(20, 20, 30, 0.14);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #16171d;
    --panel: #1e2028;
    --text: #f0f1f5;
    --muted: #9498a8;
    --border: #2c2f3a;
    --accent-green: #34d38f;
    --accent-red: #ef4b5f;
    --accent-blue: #5b8cff;
    --shadow-color: rgba(0, 0, 0, 0.4);
  }
}

:root[data-theme="dark"] {
  --bg: #16171d;
  --panel: #1e2028;
  --text: #f0f1f5;
  --muted: #9498a8;
  --border: #2c2f3a;
  --accent-green: #34d38f;
  --accent-red: #ef4b5f;
  --accent-blue: #5b8cff;
  --shadow-color: rgba(0, 0, 0, 0.4);
}

* { box-sizing: border-box; }

[hidden] {
  display: none !important;
}

html, body {
  height: 100%;
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: "Segoe UI", system-ui, -apple-system, sans-serif;
  overflow: hidden;
  user-select: none;
  -webkit-tap-highlight-color: transparent;
  transition: background-color .2s ease, color .2s ease;
}

.screen {
  height: 100dvh;
  width: 100vw;
  display: flex;
  align-items: center;
  justify-content: center;
}

.start-box {
  max-width: 480px;
  text-align: center;
  padding: 32px;
}

.start-icon {
  color: var(--muted);
  margin-bottom: 6px;
  opacity: 0.8;
}

.start-box h1 {
  font-size: 28px;
  font-weight: 700;
  letter-spacing: -0.01em;
  margin-bottom: 8px;
}

.start-box p {
  color: var(--muted);
  line-height: 1.5;
}

.hint {
  font-size: 13px;
  margin-top: 18px;
  color: var(--muted);
}

.folder-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-top: 10px;
  max-height: 40vh;
  overflow-y: auto;
  text-align: left;
}

.folder-list-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 14px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--panel);
  color: var(--text);
  cursor: pointer;
  font-size: 14px;
  transition: border-color .15s ease;
}
.folder-list-item:hover { border-color: var(--accent-blue); }
.folder-list-item .owner {
  color: var(--muted);
  font-size: 12px;
  margin-left: auto;
  white-space: nowrap;
}

.folder-fallback {
  margin-top: 20px;
  text-align: left;
}
.folder-fallback summary {
  cursor: pointer;
  color: var(--accent-blue);
  font-size: 13px;
}

.folder-input {
  width: 100%;
  padding: 12px 14px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--panel);
  color: var(--text);
  font-size: 14px;
  margin-top: 16px;
  margin-bottom: 4px;
}
.folder-input:focus {
  outline: none;
  border-color: var(--accent-blue);
}

.theme-toggle {
  position: fixed;
  top: calc(env(safe-area-inset-top, 0px) + 12px);
  right: calc(env(safe-area-inset-right, 0px) + 16px);
  z-index: 100;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--panel);
  border: 1px solid var(--border);
  color: var(--text);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: transform .15s ease, border-color .15s ease, box-shadow .15s ease;
  box-shadow: 0 2px 8px var(--shadow-color);
}
.theme-toggle:hover { border-color: var(--accent-blue); transform: scale(1.06); }
.theme-toggle:active { transform: scale(0.92); }

.btn {
  border: none;
  border-radius: 10px;
  cursor: pointer;
  font-size: 15px;
  font-weight: 600;
  padding: 12px 22px;
  transition: transform .08s ease, opacity .15s ease, filter .15s ease, border-color .15s ease;
}
.btn:active { transform: scale(0.96); }

.btn-primary {
  background: var(--accent-blue);
  color: white;
}
.btn-primary:hover { filter: brightness(1.1); }

.btn-secondary {
  background: var(--panel);
  color: var(--text);
  border: 1px solid var(--border);
}
.btn-secondary:hover { border-color: var(--accent-blue); }

.btn-big {
  padding: 16px 32px;
  font-size: 17px;
  margin-top: 12px;
  display: block;
  width: 100%;
}

.recent-wrap {
  margin-top: 22px;
}
.recent-label {
  color: var(--muted);
  font-size: 12px;
  margin-bottom: 6px;
}

#app-screen {
  flex-direction: column;
  align-items: stretch;
  justify-content: flex-start;
  padding: calc(env(safe-area-inset-top, 0px) + 16px) 24px 8px;
}

.topbar {
  flex: 0 0 auto;
}

.folder-line {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
  color: var(--muted);
}

.folder-path {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  max-width: 60vw;
}

.btn-link {
  background: none;
  border: none;
  color: var(--accent-blue);
  cursor: pointer;
  font-size: 13px;
  padding: 0;
}
.btn-link:hover { text-decoration: underline; }

.stats {
  margin-top: 6px;
  font-size: 13px;
  color: var(--muted);
}

.stat-speed {
  margin-top: 4px;
  font-size: 12px;
  color: var(--muted);
}

.stat-people {
  margin-top: 4px;
  font-size: 12px;
  font-weight: 600;
  color: var(--accent-blue);
}

.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 8px;
}

.filter-pill {
  background: var(--panel);
  color: var(--muted);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 5px 13px;
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  transition: all .12s ease;
}
.filter-pill:hover { border-color: var(--accent-blue); }
.filter-pill.active {
  background: var(--accent-blue);
  color: white;
  border-color: var(--accent-blue);
}

.progress-row {
  margin-top: 10px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.progress-bar {
  flex: 1 1 auto;
  height: 5px;
  background: var(--border);
  border-radius: 3px;
  overflow: hidden;
}
.progress-fill {
  height: 100%;
  width: 0%;
  background: var(--accent-blue);
  transition: width .2s ease;
}
.progress-percent {
  flex: 0 0 auto;
  font-size: 12px;
  font-weight: 600;
  color: var(--muted);
  min-width: 32px;
  text-align: right;
}

.stage {
  flex: 1 1 auto;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 18px;
  min-height: 0;
  padding: 14px 0;
  position: relative;
}

.card-zone {
  height: 100%;
  width: min(760px, 90%);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}

.card {
  height: 100%;
  width: 100%;
  max-height: 100%;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 18px;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  position: relative;
  touch-action: none;
  cursor: grab;
  box-shadow: 0 10px 40px var(--shadow-color);
  transition: box-shadow .2s ease, border-color .2s ease;
}
.card:hover { box-shadow: 0 14px 48px var(--shadow-color); }
.card.dragging { cursor: grabbing; transition: none; }
.card.snap-back { transition: transform .25s ease; }
.card.fly-out { transition: transform .35s ease, opacity .35s ease; }

@keyframes cardPop {
  from { transform: scale(0.97); opacity: 0.5; }
  to { transform: scale(1); opacity: 1; }
}
.card.pop { animation: cardPop .22s ease; }

.badge {
  position: absolute;
  top: 26px;
  z-index: 5;
  font-size: 26px;
  font-weight: 800;
  letter-spacing: 2px;
  padding: 8px 16px;
  border-radius: 8px;
  border: 4px solid;
  opacity: 0;
  pointer-events: none;
}
.badge-nope {
  left: 26px;
  color: var(--accent-red);
  border-color: var(--accent-red);
  transform: rotate(-18deg);
}
.badge-like {
  right: 26px;
  color: var(--accent-green);
  border-color: var(--accent-green);
  transform: rotate(18deg);
}

.media-wrap {
  flex: 1 1 auto;
  min-height: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #000;
  position: relative;
}

.media {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
  pointer-events: none;
  transition: transform .15s ease;
}

.audio-icon-overlay {
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 3;
  pointer-events: none;
}

.video-progress-ring {
  position: absolute;
  top: 14px;
  right: 14px;
  z-index: 6;
  width: 30px;
  height: 30px;
  transform: rotate(-90deg);
  filter: drop-shadow(0 1px 2px rgba(0, 0, 0, 0.6));
}

.ring-track {
  fill: rgba(0, 0, 0, 0.35);
  stroke: rgba(255, 255, 255, 0.25);
  stroke-width: 2.5;
}

.ring-fill {
  fill: none;
  stroke: white;
  stroke-width: 2.5;
  stroke-linecap: round;
  stroke-dasharray: 97.39;
  stroke-dashoffset: 97.39;
}

.video-controls {
  position: absolute;
  left: 14px;
  bottom: 14px;
  z-index: 6;
  display: flex;
  align-items: center;
  gap: 10px;
  background: rgba(0, 0, 0, 0.55);
  padding: 7px 14px 7px 10px;
  border-radius: 20px;
  touch-action: auto;
  opacity: 1;
  transition: opacity .3s ease;
}

.video-controls.controls-faded {
  opacity: 0;
  pointer-events: none;
}

.btn-mute {
  background: none;
  border: none;
  color: white;
  cursor: pointer;
  display: flex;
  align-items: center;
  padding: 2px;
  transition: transform .1s ease;
}
.btn-mute:hover { transform: scale(1.1); }

.volume-slider {
  -webkit-appearance: none;
  appearance: none;
  width: 90px;
  height: 4px;
  border-radius: 2px;
  background: rgba(255, 255, 255, 0.3);
  cursor: pointer;
  outline: none;
}
.volume-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 13px;
  height: 13px;
  border-radius: 50%;
  background: white;
  cursor: pointer;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.5);
}

.pdf-frame {
  width: 100%;
  height: 100%;
  border: none;
  background: white;
}

.text-preview {
  width: 100%;
  height: 100%;
  overflow: auto;
  background: #1b1b1b;
  box-sizing: border-box;
  padding: 16px;
}
.text-preview pre {
  color: #e8e8e8;
  font-family: "Consolas", "Cascadia Mono", monospace;
  font-size: 13px;
  line-height: 1.5;
  white-space: pre-wrap;
  word-break: break-word;
  margin: 0;
}

.other-preview, .preview-error {
  color: var(--muted);
  text-align: center;
  padding: 20px;
}
.file-icon {
  font-size: 13px;
  letter-spacing: 2px;
  background: var(--border);
  display: inline-block;
  padding: 18px 22px;
  border-radius: 10px;
  margin-bottom: 10px;
}
.other-ext {
  font-size: 16px;
  font-weight: 600;
}

.card-footer {
  flex: 0 0 auto;
  padding: 12px 18px;
  border-top: 1px solid var(--border);
}
.file-name {
  font-size: 14px;
  font-weight: 600;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.file-meta {
  font-size: 12px;
  color: var(--muted);
  margin-top: 2px;
}

.side-actions {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.btn-icon {
  background: var(--panel);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 10px;
  padding: 10px 14px;
  font-size: 12px;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 6px;
  transition: border-color .15s ease, transform .08s ease;
}
.btn-icon:hover { border-color: var(--accent-blue); }
.btn-icon:active { transform: scale(0.95); }
.btn-icon-svg { flex: 0 0 auto; }

.controls {
  flex: 0 0 auto;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 22px;
  padding: 16px 0 calc(env(safe-area-inset-bottom, 0px) + 4px);
}

.btn-round {
  width: 62px;
  height: 62px;
  border-radius: 50%;
  border: none;
  font-size: 26px;
  font-weight: 700;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: filter .15s ease, border-color .15s ease, transform .08s ease;
}
.btn-reject { background: var(--accent-red); color: white; font-size: 32px; }
.btn-accept { background: var(--accent-green); color: white; }
.btn-reject:hover, .btn-accept:hover { filter: brightness(1.1); }
.btn-round:active { transform: scale(0.92); }

.pillBtn {
  width: 56px;
  padding: 8px 0;
  border-radius: 14px;
  border: 1px solid var(--border);
  background: var(--panel);
  color: var(--muted);
  cursor: pointer;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2px;
  transition: border-color .15s ease, color .15s ease, transform .08s ease;
}
.pillBtn:hover:not(:disabled) { border-color: var(--accent-blue); color: var(--accent-blue); }
.pillBtn:active { transform: scale(0.95); }
.pillBtn:disabled { opacity: 0.35; cursor: default; }
.pillBtnIcon { font-size: 17px; }
.pillBtnLabel { font-size: 10px; font-weight: 600; }

.keys-hint {
  text-align: center;
  color: var(--muted);
  font-size: 11px;
  padding-bottom: 8px;
}

.toast {
  position: fixed;
  bottom: calc(env(safe-area-inset-bottom, 0px) + 22px);
  left: 50%;
  transform: translateX(-50%);
  background: var(--accent-red);
  color: white;
  padding: 10px 18px;
  border-radius: 8px;
  font-size: 13px;
  z-index: 50;
  box-shadow: 0 6px 20px var(--shadow-color);
  max-width: 90vw;
}

.reorg-overlay {
  position: fixed;
  inset: 0;
  z-index: 60;
  background: rgba(10, 10, 14, 0.55);
  -webkit-backdrop-filter: blur(6px);
  backdrop-filter: blur(6px);
  display: flex;
  align-items: center;
  justify-content: center;
}
.reorg-box {
  background: var(--panel);
  color: var(--text);
  padding: 26px 32px;
  border-radius: 16px;
  text-align: center;
  box-shadow: 0 12px 44px var(--shadow-color);
  max-width: 280px;
}
.reorg-box p {
  margin: 14px 0 0;
  font-size: 14px;
  font-weight: 600;
  color: var(--muted);
}
.spinner {
  width: 30px;
  height: 30px;
  margin: 0 auto;
  border: 3px solid var(--border);
  border-top-color: var(--accent-blue);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}
@keyframes spin {
  to { transform: rotate(360deg); }
}

.newfiles-banner {
  position: fixed;
  top: calc(env(safe-area-inset-top, 0px) + 76px);
  left: 50%;
  transform: translateX(-50%);
  z-index: 55;
  display: flex;
  align-items: center;
  gap: 12px;
  background: var(--panel);
  color: var(--text);
  border: 1px solid var(--border);
  padding: 10px 10px 10px 16px;
  border-radius: 12px;
  box-shadow: 0 8px 28px var(--shadow-color);
  max-width: min(420px, 90vw);
}
.newfiles-message {
  font-size: 13px;
  font-weight: 600;
}
.newfiles-refresh {
  flex: 0 0 auto;
  background: var(--accent-blue);
  color: white;
  border: none;
  border-radius: 8px;
  padding: 7px 14px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: filter .15s ease, transform .08s ease;
}
.newfiles-refresh:hover { filter: brightness(1.1); }
.newfiles-refresh:active { transform: scale(0.96); }
.newfiles-dismiss {
  flex: 0 0 auto;
  background: none;
  border: none;
  color: var(--muted);
  font-size: 20px;
  line-height: 1;
  cursor: pointer;
  padding: 2px 4px;
}
.newfiles-dismiss:hover { color: var(--text); }

/* ---------- Mobile: media fills the screen, controls float over it ---------- */
@media (max-width: 640px) {
  #app-screen {
    padding: 0;
  }

  /* Clears the mobile top bar even at its tallest (folder name + filter
     pills + progress row all shown), rather than the desktop offset which
     assumes a shorter bar. Wraps onto two lines (message, then buttons)
     instead of squeezing everything into one narrow row - at mobile width
     a single row forced the message into an ugly one-word-per-line column. */
  .newfiles-banner {
    flex-wrap: wrap;
    justify-content: center;
    max-width: min(320px, 88vw);
    top: calc(env(safe-area-inset-top, 0px) + 132px);
  }
  .newfiles-message {
    flex: 1 1 100%;
    text-align: center;
  }

  /* Top overlay: folder name + "Ouvrir" share one fixed-height row, so
     Ouvrir's position never depends on how tall the rest of the bar gets
     (filter pills, progress bar) - that mismatch used to make it drift down
     into the progress bar on real content. */
  .topbar {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 20;
    padding: calc(env(safe-area-inset-top, 0px) + 10px) 58px 14px 16px;
  }
  /* The blur itself needs to fade out, not just the tint color - a plain
     backdrop-filter on a box with a hard edge leaves a visible seam where
     the blur stops. Putting it on a taller pseudo-element (extending past
     the bar, into the media below) with a mask-image gradient fades the
     blur amount smoothly instead of cutting it off. Sits behind the actual
     text/icons (z-index: -1) so they stay crisp. */
  .topbar::before {
    content: "";
    position: absolute;
    inset: 0 0 -60px 0;
    z-index: -1;
    background: linear-gradient(to bottom, rgba(0, 0, 0, 0.55) 0%, rgba(0, 0, 0, 0.25) 40%, transparent 75%);
    -webkit-backdrop-filter: blur(16px);
    backdrop-filter: blur(16px);
    -webkit-mask-image: linear-gradient(to bottom, black 0%, black 45%, transparent 80%);
    mask-image: linear-gradient(to bottom, black 0%, black 45%, transparent 80%);
  }
  .folder-path, .btn-link { color: rgba(255, 255, 255, 0.92); }
  .stat-people { color: rgba(140, 180, 255, 0.95); }
  .stats, .stat-speed { display: none; }
  .progress-row { margin-top: 12px; }
  .progress-bar { background: rgba(255, 255, 255, 0.25); }
  .progress-percent { color: rgba(255, 255, 255, 0.85); }

  .stage {
    position: fixed;
    inset: 0;
    padding: 0;
    gap: 0;
  }
  .card-zone {
    width: 100%;
    height: 100%;
  }
  .card {
    border-radius: 0;
    border: none;
    box-shadow: none;
  }

  .card-footer {
    position: absolute;
    left: 0; right: 0; bottom: 0;
    z-index: 5;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.7) 0%, rgba(0, 0, 0, 0.35) 55%, transparent 100%);
    border-top: none;
    padding: 60px 20px 116px;
    pointer-events: none;
  }
  .file-name { color: white; font-size: 15px; }
  .file-meta { color: rgba(255, 255, 255, 0.75); }

  /* Aligned to the same top offset as .topbar's own padding, so it always
     sits on the folder-name row itself instead of trailing below it. */
  .side-actions {
    position: fixed;
    top: calc(env(safe-area-inset-top, 0px) + 8px);
    right: 14px;
    z-index: 25;
  }
  .btn-icon {
    background: rgba(255, 255, 255, 0.14);
    border-color: rgba(255, 255, 255, 0.3);
    color: white;
    width: 38px;
    height: 38px;
    padding: 0;
    border-radius: 50%;
    justify-content: center;
    -webkit-backdrop-filter: blur(10px);
    backdrop-filter: blur(10px);
  }
  .btn-icon-label { display: none; }

  /* Video-specific overlays: pushed clear of the top icon row and the
     bottom controls bar now that media-wrap spans the full screen height. */
  .video-progress-ring {
    top: calc(env(safe-area-inset-top, 0px) + 62px);
  }
  .video-controls {
    bottom: calc(env(safe-area-inset-bottom, 0px) + 170px);
  }
  /* Volume is handled by the phone's hardware buttons on mobile - the
     on-screen slider is redundant, keep just the mute toggle. */
  .volume-slider { display: none; }
  .video-controls { padding: 8px; }

  .controls {
    position: fixed;
    left: 0; right: 0; bottom: 0;
    z-index: 20;
    padding: 18px 22px calc(env(safe-area-inset-bottom, 0px) + 18px);
    gap: 18px;
  }
  /* Same fading-blur technique as .topbar::before, mirrored upward. */
  .controls::before {
    content: "";
    position: absolute;
    inset: -60px 0 0 0;
    z-index: -1;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.55) 0%, rgba(0, 0, 0, 0.25) 40%, transparent 75%);
    -webkit-backdrop-filter: blur(16px);
    backdrop-filter: blur(16px);
    -webkit-mask-image: linear-gradient(to top, black 0%, black 45%, transparent 80%);
    mask-image: linear-gradient(to top, black 0%, black 45%, transparent 80%);
  }
  .pillBtn {
    background: rgba(255, 255, 255, 0.14);
    border-color: rgba(255, 255, 255, 0.28);
    color: rgba(255, 255, 255, 0.92);
  }
  .btn-round {
    box-shadow: 0 6px 18px rgba(0, 0, 0, 0.35);
  }

  .keys-hint { display: none; }
}