:root {
  --bg: #f8fafc;
  --surface: #ffffff;
  --surface-subtle: #f1f5f9;
  --border: #cbd5e1;
  --border-strong: #94a3b8;
  --text: #0f172a;
  --text-muted: #475569;
  --primary: #1d4ed8;
  --primary-hover: #1e40af;
  --primary-soft: #dbeafe;
  --danger-bg: #fef2f2;
  --danger-border: #fca5a5;
  --danger-text: #991b1b;
  --success-bg: #f0fdf4;
  --success-border: #86efac;
  --success-text: #166534;
  --warn-bg: #fffbeb;
  --warn-border: #fde68a;
  --warn-text: #92400e;
  --radius: 12px;
  --shadow: 0 1px 3px rgba(15, 23, 42, 0.08), 0 1px 2px rgba(15, 23, 42, 0.04);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background-color: var(--bg);
  color: var(--text);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

code {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 0.9em;
  background: var(--surface-subtle);
  padding: 0.12rem 0.35rem;
  border-radius: 4px;
}

.container {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 1.25rem;
}

.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;
}

/* Header */
.site-header {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 20;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 64px;
  gap: 1rem;
  flex-wrap: wrap;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  text-decoration: none;
  color: var(--text);
}

.brand-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 8px;
  background: var(--primary);
  color: #ffffff;
  font-weight: 700;
  font-size: 0.9rem;
  letter-spacing: 0.02em;
}

.brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}

.brand-text strong {
  font-size: 1rem;
}

.brand-text small {
  font-size: 0.75rem;
  color: var(--text-muted);
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 1.15rem;
  flex-wrap: wrap;
}

.site-nav a {
  text-decoration: none;
  color: var(--text-muted);
  font-size: 0.92rem;
  font-weight: 500;
}

.site-nav a:hover,
.site-nav a[aria-current="page"] {
  color: var(--primary);
}

/* Hero */
.main-content {
  padding-top: 2rem;
  padding-bottom: 3.5rem;
}

.hero {
  margin-bottom: 1.75rem;
}

.scope-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--primary-soft);
  color: var(--primary-hover);
  font-size: 0.82rem;
  font-weight: 600;
  padding: 0.3rem 0.75rem;
  border-radius: 999px;
  margin-bottom: 0.75rem;
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--primary);
}

.hero h1 {
  font-size: clamp(1.65rem, 3vw, 2.25rem);
  line-height: 1.2;
  margin: 0 0 0.65rem 0;
  letter-spacing: -0.02em;
}

.hero-subtitle {
  margin: 0 0 1rem 0;
  color: var(--text-muted);
  max-width: 78ch;
  font-size: 1.02rem;
}

.notice-banner {
  background: var(--warn-bg);
  border: 1px solid var(--warn-border);
  color: var(--warn-text);
  padding: 0.75rem 1rem;
  border-radius: 8px;
  font-size: 0.9rem;
}

/* Workspace Grid */
.workspace-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
  align-items: start;
  margin-bottom: 2.75rem;
}

@media (max-width: 860px) {
  .workspace-grid {
    grid-template-columns: 1fr;
  }
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.35rem;
  box-shadow: var(--shadow);
}

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

.card-header h2 {
  font-size: 1.15rem;
  margin: 0;
}

.limit-badge {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--text-muted);
  background: var(--surface-subtle);
  padding: 0.25rem 0.6rem;
  border-radius: 6px;
  border: 1px solid var(--border);
}

/* Dropzone */
.dropzone {
  border: 2px dashed var(--border-strong);
  border-radius: 10px;
  padding: 1.75rem 1.25rem;
  text-align: center;
  background: var(--surface-subtle);
  cursor: pointer;
  transition: border-color 0.15s ease, background-color 0.15s ease;
}

.dropzone:hover,
.dropzone:focus-visible,
.dropzone.drag-over {
  border-color: var(--primary);
  background: #eff6ff;
  outline: none;
}

.dropzone-icon {
  color: var(--primary);
  margin-bottom: 0.5rem;
}

.dropzone-primary {
  margin: 0 0 0.35rem 0;
  font-size: 1rem;
}

.dropzone-secondary {
  margin: 0 0 1rem 0;
  font-size: 0.84rem;
  color: var(--text-muted);
}

/* Buttons */
.btn {
  appearance: none;
  border: 1px solid transparent;
  border-radius: 8px;
  font-size: 0.92rem;
  font-weight: 600;
  padding: 0.55rem 1rem;
  cursor: pointer;
  transition: background-color 0.15s ease, opacity 0.15s ease;
}

.btn:disabled {
  opacity: 0.55;
  cursor: not-allowed;
}

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

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

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

.btn-secondary:hover:not(:disabled) {
  background: var(--surface-subtle);
}

/* Alerts */
.alert {
  margin-top: 1rem;
  padding: 0.85rem 1rem;
  border-radius: 8px;
  font-size: 0.9rem;
}

.alert-error {
  background: var(--danger-bg);
  border: 1px solid var(--danger-border);
  color: var(--danger-text);
}

.alert-title {
  font-weight: 700;
  margin-bottom: 0.25rem;
}

.alert-message {
  margin: 0;
}

/* File Summary & Video Preview */
.file-summary {
  margin-top: 1rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border);
}

.file-meta-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.file-meta-info {
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.file-meta-info strong {
  font-size: 0.95rem;
  word-break: break-all;
}

.file-submeta {
  font-size: 0.82rem;
  color: var(--text-muted);
}

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

.video-preview-wrap {
  margin-top: 0.85rem;
  background: #0f172a;
  border-radius: 8px;
  overflow: hidden;
  max-height: 260px;
  display: flex;
  justify-content: center;
}

.video-preview-wrap video {
  max-width: 100%;
  max-height: 260px;
  display: block;
}

/* Progress Panel */
.progress-panel {
  margin-top: 1rem;
  padding: 0.9rem 1rem;
  background: var(--surface-subtle);
  border: 1px solid var(--border);
  border-radius: 8px;
}

.progress-header {
  display: flex;
  justify-content: space-between;
  font-size: 0.88rem;
  font-weight: 600;
  margin-bottom: 0.45rem;
}

.progress-bar-track {
  width: 100%;
  height: 10px;
  background: #e2e8f0;
  border-radius: 999px;
  overflow: hidden;
}

.progress-bar-fill {
  height: 100%;
  background: var(--primary);
  transition: width 0.2s ease;
}

.progress-detail {
  margin: 0.45rem 0 0 0;
  font-size: 0.82rem;
  color: var(--text-muted);
}

/* Output Card */
.view-toggle {
  display: inline-flex;
  background: var(--surface-subtle);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 2px;
}

.toggle-btn {
  border: none;
  background: transparent;
  padding: 0.3rem 0.65rem;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-muted);
  border-radius: 6px;
  cursor: pointer;
}

.toggle-btn.active {
  background: var(--surface);
  color: var(--text);
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.06);
}

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

.transcript-stats {
  display: flex;
  gap: 0.9rem;
  font-size: 0.84rem;
  color: var(--text-muted);
  flex-wrap: wrap;
}

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

.copy-feedback {
  background: var(--success-bg);
  border: 1px solid var(--success-border);
  color: var(--success-text);
  padding: 0.5rem 0.75rem;
  border-radius: 6px;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 0.75rem;
}

.transcript-textarea {
  width: 100%;
  min-height: 290px;
  resize: vertical;
  padding: 0.9rem;
  border-radius: 8px;
  border: 1px solid var(--border);
  font-family: inherit;
  font-size: 0.96rem;
  line-height: 1.6;
  color: var(--text);
  background: var(--surface-subtle);
}

.transcript-textarea:focus {
  outline: 2px solid var(--primary);
  background: var(--surface);
}

.output-footnote {
  margin: 0.65rem 0 0 0;
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* Supporting Sections */
.info-section {
  margin-top: 2.5rem;
}

.info-section h2 {
  font-size: 1.35rem;
  margin: 0 0 1rem 0;
}

.steps-grid,
.limitations-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1rem;
}

.step-card,
.limitation-item,
.info-box {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.15rem 1.25rem;
  box-shadow: var(--shadow);
}

.step-num {
  display: inline-block;
  font-size: 0.76rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--primary);
  background: var(--primary-soft);
  padding: 0.15rem 0.5rem;
  border-radius: 4px;
  margin-bottom: 0.45rem;
}

.step-card h3,
.limitation-item h3 {
  margin: 0 0 0.4rem 0;
  font-size: 1rem;
}

.step-card p,
.limitation-item p {
  margin: 0;
  font-size: 0.9rem;
  color: var(--text-muted);
}

.clean-list {
  margin: 0;
  padding-left: 1.2rem;
}

.clean-list li {
  margin-bottom: 0.55rem;
  font-size: 0.94rem;
}

.clean-list li:last-child {
  margin-bottom: 0;
}

/* Legal pages */
.legal-content {
  max-width: 780px;
  padding-top: 2rem;
  padding-bottom: 3.5rem;
}

.legal-updated {
  color: var(--text-muted);
  font-size: 0.9rem;
  margin-bottom: 1.75rem;
}

.legal-section {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem 1.5rem;
  margin-bottom: 1.25rem;
}

.legal-section h2 {
  margin-top: 0;
  font-size: 1.15rem;
}

.inline-status {
  margin-left: 0.75rem;
  font-size: 0.88rem;
  color: var(--success-text);
  font-weight: 600;
}

/* Footer */
.site-footer {
  border-top: 1px solid var(--border);
  background: var(--surface);
  padding: 1.25rem 0;
  font-size: 0.86rem;
  color: var(--text-muted);
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}

.footer-links {
  display: flex;
  gap: 1rem;
}

.footer-links a {
  color: var(--text-muted);
  text-decoration: none;
}

.footer-links a:hover {
  color: var(--primary);
}