:root {
  color-scheme: dark;
  --bg: #0f1115;
  --surface: #171a21;
  --surface-2: #1f2430;
  --border: #2d3444;
  --text: #e8ecf3;
  --muted: #9aa4b2;
  --primary: #3ecf8e;
  --primary-hover: #2fb87c;
  --success: #3ecf8e;
  --warning: #f5b942;
  --error: #ff6b6b;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: radial-gradient(circle at top, #14261f 0%, var(--bg) 45%);
  color: var(--text);
  min-height: 100vh;
}

.container {
  width: min(960px, 92vw);
  margin: 0 auto;
  padding: 2.5rem 0 4rem;
}

.header h1 {
  margin: 0 0 0.35rem;
  font-size: 2rem;
}

.login-card {
  width: min(360px, 92vw);
  margin: 4rem auto 0;
  text-align: center;
}

.brand {
  margin: 0 0 0.5rem;
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--primary);
}

.login-card h2 {
  margin: 0 0 0.35rem;
}

.login-form {
  display: flex;
  gap: 0.75rem;
  margin-top: 1rem;
}

.code-input {
  flex: 1;
  padding: 0.7rem 0.85rem;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--surface-2);
  color: var(--text);
  font-size: 1.25rem;
  letter-spacing: 0.35em;
  text-align: center;
  font-variant-numeric: tabular-nums;
}

.code-input:focus {
  outline: none;
  border-color: var(--primary);
}

.login-error {
  margin: 0.75rem 0 0;
  color: var(--error);
  font-size: 0.9rem;
}

.header p,
.muted {
  color: var(--muted);
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 1.25rem;
  margin-top: 1.25rem;
}

.dropzone {
  border: 2px dashed var(--border);
  border-radius: 14px;
  padding: 2.5rem 1rem;
  text-align: center;
  cursor: pointer;
  transition: border-color 0.2s, background 0.2s;
}

.dropzone:hover,
.dropzone.dragover {
  border-color: var(--primary);
  background: rgba(62, 207, 142, 0.08);
}

.dropzone-title {
  margin: 0;
  font-size: 1.1rem;
  font-weight: 600;
}

.dropzone-subtitle,
.dropzone-hint {
  margin: 0.4rem 0 0;
  color: var(--muted);
}

.controls {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  align-items: end;
  margin-top: 1rem;
}

.controls-secondary {
  margin-top: 0.5rem;
}

.control-field label {
  display: block;
  margin-bottom: 0.35rem;
  color: var(--muted);
  font-size: 0.9rem;
}

.control-field textarea {
  width: 100%;
  padding: 0.75rem 0.85rem;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--surface-2);
  color: var(--text);
  resize: vertical;
  min-height: 84px;
  line-height: 1.5;
  font-family: inherit;
}

.context-field {
  margin-top: 1rem;
}

.control-field select,
.control-field input[type="number"] {
  min-width: 200px;
  padding: 0.65rem 0.75rem;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--surface-2);
  color: var(--text);
}

.advanced-settings {
  margin-top: 1rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border);
}

.advanced-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 0.75rem;
}

.hint {
  margin: 0.75rem 0 0;
  font-size: 0.85rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.7rem 1rem;
  border-radius: 10px;
  border: 1px solid transparent;
  text-decoration: none;
  font-weight: 600;
  cursor: pointer;
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.btn.primary {
  background: var(--primary);
  color: #0b1a12;
}

.btn.primary:hover:not(:disabled) {
  background: var(--primary-hover);
}

.btn.secondary {
  background: var(--surface-2);
  color: var(--text);
  border-color: var(--border);
}

.btn.secondary:hover:not(:disabled) {
  border-color: var(--primary);
  color: var(--primary);
}

.btn.copied {
  border-color: var(--success);
  color: var(--success);
}

.status-header,
.result-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
}

.badge {
  display: inline-flex;
  padding: 0.25rem 0.65rem;
  border-radius: 999px;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  background: var(--surface-2);
  border: 1px solid var(--border);
}

.badge.pending,
.badge.processing {
  color: var(--warning);
}

.badge.done {
  color: var(--success);
}

.badge.error {
  color: var(--error);
}

.badge.cancelled {
  color: var(--muted);
}

.queue-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 0.75rem;
}

.queue-header h2 {
  margin: 0;
}

.queue-list {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.queue-item {
  display: grid;
  grid-template-columns: 1fr auto auto auto;
  gap: 0.75rem;
  align-items: center;
  padding: 0.75rem 0.85rem;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--surface-2);
  cursor: pointer;
  transition: border-color 0.15s ease;
}

.queue-item:hover {
  border-color: var(--accent);
}

.queue-filename {
  font-size: 0.95rem;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.queue-meta {
  font-size: 0.8rem;
  color: var(--muted);
  white-space: nowrap;
}

.queue-actions {
  display: flex;
  gap: 0.5rem;
}

.btn.danger {
  color: #f87171;
  border-color: rgba(239, 68, 68, 0.35);
}

.btn.danger:hover {
  background: rgba(239, 68, 68, 0.1);
}

.progress-bar {
  width: 100%;
  height: 10px;
  background: var(--surface-2);
  border-radius: 999px;
  overflow: hidden;
  margin: 1rem 0 0.75rem;
}

.progress-fill {
  width: 0%;
  height: 100%;
  background: linear-gradient(90deg, var(--primary), #7ddeb0);
  transition: width 0.3s ease;
}

.status-message {
  margin: 0;
}

.full-text {
  margin: 0 0 1rem;
  padding: 0.9rem 1rem;
  background: var(--surface-2);
  border-radius: 10px;
  line-height: 1.6;
}

.descriptions-section {
  margin-bottom: 1rem;
}

.descriptions-section h3 {
  margin: 0 0 0.75rem;
  font-size: 1rem;
}

.descriptions-list {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

.description-item {
  display: grid;
  grid-template-columns: 72px 1fr;
  gap: 0.75rem;
  padding: 0.75rem 0.85rem;
  border-radius: 10px;
  background: var(--surface-2);
  border: 1px solid var(--border);
}

.description-time {
  color: var(--accent);
  font-variant-numeric: tabular-nums;
  font-size: 0.9rem;
}

.description-text {
  margin: 0;
  line-height: 1.5;
}

.frames-gallery-section {
  margin-bottom: 1rem;
}

.frames-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  margin-bottom: 0.75rem;
  flex-wrap: wrap;
}

.frames-toolbar-actions {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.frames-gallery {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 0.75rem;
}

.frame-card {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  padding: 0.65rem;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--surface-2);
}

.frame-card-label {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  cursor: pointer;
}

.frame-card-label input[type="checkbox"] {
  align-self: flex-start;
}

.frame-time {
  font-size: 0.85rem;
  color: var(--accent);
  font-variant-numeric: tabular-nums;
}

.frame-thumb {
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
  border-radius: 8px;
  background: #000;
}

.frame-download {
  width: 100%;
  text-align: center;
  padding: 0.45rem 0.5rem;
  font-size: 0.85rem;
}

.segments {
  max-height: 420px;
  overflow: auto;
  display: grid;
  gap: 0.75rem;
}

.segment {
  padding: 0.85rem 1rem;
  background: var(--surface-2);
  border-radius: 10px;
  border: 1px solid var(--border);
}

.segment-time {
  color: var(--primary);
  font-size: 0.85rem;
  margin-bottom: 0.35rem;
  font-variant-numeric: tabular-nums;
}

.segment-text {
  margin: 0;
  line-height: 1.5;
}

.download-actions {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.error-card {
  border-color: rgba(255, 107, 107, 0.4);
}

.hidden {
  display: none;
}

@media (max-width: 640px) {
  .btn {
    width: 100%;
  }

  .control-field select,
  .control-field input[type="number"] {
    width: 100%;
    min-width: 0;
  }

  .status-header,
  .result-header,
  .queue-header {
    flex-direction: column;
    align-items: flex-start;
  }

  .queue-item {
    grid-template-columns: 1fr;
    gap: 0.5rem;
  }

  .queue-actions {
    justify-content: flex-end;
  }
}