:root {
  color-scheme: dark;
  --bg: #0a0a0b;
  --bg-soft: #141418;
  --fg: #e8e6e1;
  --fg-dim: #8a8780;
  --selected: #7bd88f;
  --danger: #f87171;
  --radius: 10px;
  --shadow: 0 1px 2px rgba(0, 0, 0, 0.4), 0 8px 32px rgba(0, 0, 0, 0.3);
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: -apple-system, BlinkMacSystemFont, "Inter", "Segoe UI", sans-serif;
  font-size: 14px;
  -webkit-font-smoothing: antialiased;
}

body {
  min-height: 100vh;
  padding: 64px 24px 80px;
}

@media (max-width: 640px) {
  body {
    padding: 72px 12px 64px;
  }
}

.upload {
  position: fixed;
  top: 16px;
  left: 16px;
  width: 40px;
  height: 40px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(20, 20, 24, 0.7);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  color: var(--fg);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  z-index: 40;
  transition: transform 0.15s ease, border-color 0.15s ease, background 0.15s ease;
}

.upload svg {
  width: 18px;
  height: 18px;
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
}

.upload:hover {
  transform: scale(1.05);
  border-color: rgba(255, 255, 255, 0.3);
  background: rgba(30, 30, 36, 0.9);
}

.upload.dragover {
  transform: scale(1.15);
  border-color: var(--selected);
  background: rgba(123, 216, 143, 0.15);
  color: var(--selected);
}

.upload.busy {
  pointer-events: none;
  opacity: 0.6;
}

.upload.busy svg {
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

.tray {
  position: fixed;
  top: 16px;
  right: 16px;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(20, 20, 24, 0.8);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  box-shadow: var(--shadow);
  z-index: 40;
  max-width: calc(100vw - 32px);
}

.tray-thumbs {
  display: flex;
  gap: 4px;
  overflow-x: auto;
  scrollbar-width: none;
  max-width: min(320px, 40vw);
  padding: 2px;
}

.tray-thumbs::-webkit-scrollbar {
  display: none;
}

.tray-thumb {
  flex: 0 0 auto;
  width: 32px;
  height: 32px;
  border-radius: 6px;
  overflow: hidden;
  position: relative;
  cursor: pointer;
  border: 0;
  padding: 0;
  background: var(--bg-soft);
  transition: transform 0.1s ease;
}

.tray-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.tray-thumb span {
  display: grid;
  place-items: center;
  width: 100%;
  height: 100%;
  color: var(--fg);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0;
}

.tray-thumb:hover {
  transform: scale(1.08);
}

.tray-thumb:hover::after {
  content: "×";
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  background: rgba(0, 0, 0, 0.65);
  color: #fff;
  font-size: 16px;
  line-height: 1;
}

.tray-copy,
.tray-clear {
  border: 0;
  background: var(--fg);
  color: #111;
  border-radius: 999px;
  padding: 6px 12px;
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  white-space: nowrap;
  letter-spacing: 0.01em;
}

.tray-clear {
  background: transparent;
  color: var(--fg-dim);
  padding: 4px 8px;
  font-size: 18px;
  line-height: 1;
}

.tray-clear:hover {
  color: var(--fg);
}

.key-chip {
  position: fixed;
  top: 16px;
  right: 16px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(20, 20, 24, 0.7);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  color: var(--fg-dim);
  border-radius: 999px;
  padding: 8px 14px;
  font-size: 12px;
  cursor: pointer;
  z-index: 30;
  transition: color 0.15s ease, border-color 0.15s ease;
}

.key-chip:hover {
  color: var(--fg);
  border-color: rgba(255, 255, 255, 0.25);
}

.trash-actions {
  position: fixed;
  top: 16px;
  right: 16px;
  display: flex;
  gap: 8px;
  z-index: 30;
}

.trash-toggle,
.trash-empty {
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(20, 20, 24, 0.7);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  color: var(--fg-dim);
  border-radius: 999px;
  padding: 8px 14px;
  font-size: 12px;
  cursor: pointer;
  transition: color 0.15s ease, border-color 0.15s ease, background 0.15s ease;
}

.trash-toggle:hover,
.trash-empty:hover {
  color: var(--fg);
  border-color: rgba(255, 255, 255, 0.25);
  background: rgba(30, 30, 36, 0.9);
}

.trash-empty {
  color: var(--danger);
}

body[data-has-tray="1"] .key-chip {
  top: 68px;
}

body[data-has-tray="1"] .trash-actions {
  top: 68px;
}

.key-chip:not([hidden]) + .trash-actions:not([hidden]) {
  top: 60px;
}

body[data-has-tray="1"] .key-chip:not([hidden]) + .trash-actions:not([hidden]) {
  top: 112px;
}

.gallery {
  column-width: 280px;
  column-gap: 12px;
  max-width: 1600px;
  margin: 0 auto;
}

@media (min-width: 1400px) {
  .gallery {
    column-width: 320px;
  }
}

.card {
  position: relative;
  break-inside: avoid;
  margin: 0 0 12px;
  border-radius: var(--radius);
  overflow: hidden;
  cursor: pointer;
  background: var(--bg-soft);
  box-shadow: var(--shadow);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.card img,
.card video {
  width: 100%;
  height: auto;
  display: block;
  transition: opacity 0.3s ease;
}

.card video {
  min-height: 160px;
  object-fit: cover;
  pointer-events: none;
}

.card.playing video {
  pointer-events: auto;
}

.card img[data-loaded="0"] {
  opacity: 0;
}

.audio-preview,
.file-preview {
  min-height: 180px;
  display: grid;
  place-items: center;
  background: linear-gradient(135deg, rgba(123, 216, 143, 0.18), rgba(20, 20, 24, 0.9));
  color: var(--fg);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.16em;
}

.audio-preview svg {
  width: 42px;
  height: 42px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.tray-thumb video,
.tray-thumb img,
.tray-thumb .audio-preview,
.tray-thumb .file-preview {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  min-height: 0;
  pointer-events: none;
}

.tray-thumb .audio-preview svg {
  width: 18px;
  height: 18px;
}

.card:hover {
  transform: translateY(-2px);
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.5), 0 16px 40px rgba(0, 0, 0, 0.5);
}

.card.selected {
  outline: 2px solid var(--selected);
  outline-offset: -2px;
}

.card.selected::before {
  content: "";
  position: absolute;
  top: 10px;
  left: 10px;
  width: 18px;
  height: 18px;
  border-radius: 999px;
  background: var(--selected);
  box-shadow: 0 0 0 3px rgba(0, 0, 0, 0.4);
  z-index: 2;
}

.card.selected::after {
  content: "";
  position: absolute;
  top: 14px;
  left: 14px;
  width: 10px;
  height: 10px;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 10 10'><path d='M1 5l3 3 5-6' fill='none' stroke='%23000' stroke-width='1.8' stroke-linecap='round' stroke-linejoin='round'/></svg>");
  background-repeat: no-repeat;
  background-size: contain;
  z-index: 3;
}

.trash-card {
  cursor: default;
}

.trash-badge {
  position: absolute;
  left: 8px;
  bottom: 8px;
  max-width: calc(100% - 16px);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  border-radius: 999px;
  background: rgba(0, 0, 0, 0.7);
  color: var(--fg);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0;
  padding: 5px 8px;
  z-index: 2;
}

.audio-card {
  display: grid;
  gap: 14px;
  min-height: 128px;
  padding: 22px 16px 16px;
}

.audio-card span {
  color: var(--fg);
  font-size: 13px;
  overflow-wrap: anywhere;
}

.audio-card audio {
  width: 100%;
}

.card-delete,
.card-download,
.card-play {
  position: absolute;
  width: 28px;
  height: 28px;
  border-radius: 999px;
  border: 0;
  background: rgba(0, 0, 0, 0.65);
  color: #fff;
  cursor: pointer;
  display: grid;
  place-items: center;
  opacity: 0;
  transform: scale(0.9);
  transition: opacity 0.15s ease, transform 0.15s ease, background 0.15s ease;
  z-index: 2;
  padding: 0;
}

.card-delete,
.card-download {
  top: 8px;
}

.card-delete {
  right: 8px;
}

.card-download {
  right: 42px;
}

.card-play {
  top: 50%;
  left: 50%;
  width: 46px;
  height: 46px;
  opacity: 1;
  transform: translate(-50%, -50%);
}

.card-play[hidden] {
  display: none;
}

.card-delete svg,
.card-download svg,
.card-play svg {
  width: 14px;
  height: 14px;
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
}

.card-play svg {
  width: 20px;
  height: 20px;
  fill: currentColor;
  stroke: none;
  margin-left: 2px;
}

.card:hover .card-delete,
.card:hover .card-download,
.card-delete:focus-visible,
.card-download:focus-visible,
.card-play:focus-visible {
  opacity: 1;
  transform: scale(1);
}

.card:hover .card-play,
.card-play:focus-visible {
  transform: translate(-50%, -50%) scale(1.04);
}

.card-delete:hover {
  background: var(--danger);
}

.card-download:hover,
.card-play:hover {
  background: rgba(123, 216, 143, 0.8);
  color: #111;
}

.status {
  position: fixed;
  bottom: 16px;
  left: 50%;
  transform: translateX(-50%);
  font-size: 11px;
  color: var(--fg-dim);
  pointer-events: none;
  z-index: 20;
}

.toast {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%) translateY(20px);
  background: var(--fg);
  color: #111;
  padding: 10px 18px;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 500;
  box-shadow: var(--shadow);
  opacity: 0;
  transition: opacity 0.2s ease, transform 0.2s ease;
  pointer-events: none;
  z-index: 60;
}

.toast.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

.toast.error {
  background: var(--danger);
  color: #fff;
}

.key-dialog {
  border: 0;
  padding: 0;
  background: transparent;
  color: var(--fg);
}

.key-dialog::backdrop {
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
}

.key-dialog form {
  background: var(--bg-soft);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 14px;
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  min-width: 300px;
  box-shadow: var(--shadow);
}

.key-dialog h2 {
  margin: 0 0 4px;
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.01em;
}

.key-dialog input {
  background: var(--bg);
  border: 1px solid rgba(255, 255, 255, 0.1);
  color: var(--fg);
  padding: 10px 12px;
  border-radius: 8px;
  font-size: 14px;
  outline: none;
}

.key-dialog input:focus {
  border-color: rgba(255, 255, 255, 0.3);
}

.key-dialog button {
  border: 0;
  background: var(--fg);
  color: #111;
  padding: 10px 12px;
  border-radius: 8px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
}

.sentinel {
  height: 1px;
}