:root {
  --pdf-border: rgba(148, 163, 184, 0.2);
  --pdf-surface: rgba(15, 23, 42, 0.72);
  --pdf-surface-strong: rgba(15, 23, 42, 0.9);
  --pdf-accent: #5b8cff;
  --pdf-success: #16a34a;
  --pdf-warning: #f59e0b;
  --pdf-danger: #dc2626;
}

.pdf-works-package .package-content {
  padding: 80px 24px 24px;
}

.pdf-works-package .package-nav {
  padding-top: 80px;
}

.pdf-shell {
  display: grid;
  gap: 20px;
}

.pdf-hero,
.workspace-card,
.panel-card,
.result-card,
.library-card {
  background: var(--pdf-surface);
  border: 1px solid var(--pdf-border);
  border-radius: 20px;
  backdrop-filter: blur(12px);
}

.pdf-hero {
  padding: 24px;
}

.pdf-kicker {
  display: inline-flex;
  gap: 8px;
  align-items: center;
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-secondary);
}

.pdf-shell-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.5fr) minmax(320px, 1fr);
  gap: 20px;
}

.workspace-card,
.panel-card,
.result-card,
.library-card {
  padding: 20px;
}

.upload-dropzone {
  border: 2px dashed var(--pdf-border);
  border-radius: 18px;
  padding: 28px;
  text-align: center;
  display: grid;
  gap: 10px;
  cursor: pointer;
  margin-top: 60px;
}

.upload-dropzone.is-dragover {
  border-color: var(--pdf-accent);
  background: rgba(91, 140, 255, 0.08);
}

.button-row,
.panel-actions,
.workspace-actions,
.result-actions,
.meta-row,
.library-header-row,
.library-header-actions,
.library-document-actions,
.quota-row {
  display: flex;
  gap: 12px !important;
  flex-wrap: wrap;
  align-items: center;
  margin-top: 16px;
}

.result-card {
  margin-top: 20px;
}

.button,
.button-secondary,
.button-danger {
  border: 0;
  border-radius: 12px;
  padding: 12px 16px;
  font: inherit;
  cursor: pointer;
}

.button { background: var(--pdf-accent); color: white; }
.button-secondary { background: rgba(148,163,184,0.12); color: var(--text-primary); border: 1px solid var(--pdf-border); }
.button-danger { background: rgba(220,38,38,0.12); color: #fecaca; border: 1px solid rgba(220,38,38,0.25); }
.button[disabled],
.button-secondary[disabled],
.button-danger[disabled] { opacity: 0.5; cursor: not-allowed; }

.workspace-summary {
  display: grid;
  gap: 14px;
}

.document-chip,
.library-upgrade-callout,
.library-quota-card,
.library-document-card,
.library-empty-state {
  padding: 12px 14px;
  border-radius: 14px;
  background: rgba(148,163,184,0.08);
  border: 1px solid var(--pdf-border);
}

.thumb-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
  gap: 12px;
}

.thumb-card {
  background: rgba(15,23,42,0.55);
  border: 1px solid var(--pdf-border);
  border-radius: 14px;
  overflow: hidden;
}

.thumb-card img {
  width: 100%;
  display: block;
  aspect-ratio: 0.75;
  object-fit: cover;
  background: white;
}

.thumb-card span {
  display: block;
  padding: 8px 10px;
  font-size: 12px;
  color: var(--text-secondary);
}

.form-row { display: grid; gap: 8px; margin-bottom: 14px; }
.form-row label { font-size: 13px; color: var(--text-secondary); }
.form-row input,
.form-row select,
.form-row textarea {
  width: 100%;
  border-radius: 12px;
  border: 1px solid var(--pdf-border);
  background: rgba(15,23,42,0.7);
  color: var(--text-primary);
  padding: 12px 14px;
  font: inherit;
}

.toggle-group { display: flex; gap: 12px; flex-wrap: wrap; }
.toggle-pill { border: 1px solid var(--pdf-border); background: rgba(148,163,184,0.08); color: var(--text-primary); border-radius: 999px; padding: 8px 12px; cursor: pointer; }
.toggle-pill.is-active { background: var(--pdf-accent); color: white; border-color: var(--pdf-accent); }

/* Category nav groups */
.nav-category {
  border: none;
  margin: 0;
  padding: 0 0 4px;
}

.nav-category-label {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 12px 8px 14px;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-secondary);
  cursor: pointer;
  list-style: none;
  user-select: none;
  border-radius: 8px;
  transition: color 0.15s ease, background 0.15s ease;
}

.nav-category-label::-webkit-details-marker { display: none; }

/* Chevron icon via pseudo-element */
.nav-category-label::before {
  content: '';
  display: inline-block;
  width: 12px;
  height: 12px;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 12 12'%3E%3Cpath d='M4 2l4 4-4 4' stroke='%2394a3b8' stroke-width='1.5' fill='none' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-size: contain;
  flex-shrink: 0;
  transition: transform 0.18s ease;
}

.nav-category[open] .nav-category-label::before {
  transform: rotate(90deg);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 12 12'%3E%3Cpath d='M4 2l4 4-4 4' stroke='%23e2e8f0' stroke-width='1.5' fill='none' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
}

.nav-category[open] .nav-category-label {
  color: var(--text-primary);
}

.nav-category-label:hover {
  background: rgba(148, 163, 184, 0.08);
  color: var(--text-primary);
}

/* Indent child operation links under category */
.nav-category .package-nav-link {
  padding-left: 30px;
  font-size: 13px;
  font-weight: 400;
  color: var(--text-secondary);
}

.nav-category .package-nav-link:hover,
.nav-category .package-nav-link.active {
  color: var(--text-primary);
}

.package-nav .nav-link-inner { display: flex; gap: 10px; align-items: center; width: 100%; }
.package-nav .nav-meta { margin-left: auto; }
.pro-badge-inline {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 2px 6px;
  border-radius: 999px;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.08em;
  background: #facc15;
  color: #111827;
}

.status-note { font-size: 13px; color: var(--text-secondary); }
.status-note.is-success { color: #86efac; }
.status-note.is-error { color: #fca5a5; }
.status-note.is-warning { color: #fcd34d; }

.inline-list,
.library-document-list,
.library-benefits-list {
  display: grid;
  gap: 10px;
}

.inline-item {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  padding: 12px 14px;
  border: 1px solid var(--pdf-border);
  border-radius: 12px;
  background: rgba(148,163,184,0.08);
  cursor: pointer;
  transition: background 0.15s ease, border-color 0.15s ease;
  font: inherit;
  color: inherit;
  text-align: left;
  width: 100%;
}

.inline-item:hover {
  background: rgba(91, 140, 255, 0.12);
  border-color: rgba(91, 140, 255, 0.3);
}

.inline-item.is-active {
  background: rgba(91, 140, 255, 0.2);
  border-color: var(--pdf-accent);
}

.library-card h2,
.library-document-card h3 {
  margin-bottom: 6px;
}

.library-card {
  display: grid;
  gap: 20px;
}

.library-header-row {
  justify-content: space-between;
  align-items: flex-start;
}

.library-header-actions {
  margin-top: 0;
  justify-content: flex-end;
}

.library-document-card {
  display: grid;
  gap: 12px;
}

.library-document-actions {
  margin-top: 0;
}

.library-benefits-list {
  padding-left: 18px;
}

.quota-meter {
  width: min(220px, 100%);
  height: 12px;
  border-radius: 999px;
  overflow: hidden;
  background: rgba(148,163,184,0.12);
  border: 1px solid var(--pdf-border);
}

.quota-meter span {
  display: block;
  height: 100%;
  background: linear-gradient(90deg, #5b8cff 0%, #7c3aed 100%);
}

body.is-pro #pro-cta-bar {
  display: none !important;
}

/* ---- Focus states ---- */
:focus-visible {
  outline: 2px solid var(--pdf-accent);
  outline-offset: 2px;
}

button:focus-visible,
[role="button"]:focus-visible,
.toggle-pill:focus-visible,
.inline-item:focus-visible,
.upload-dropzone:focus-visible,
.button:focus-visible,
.button-secondary:focus-visible,
.button-danger:focus-visible {
  outline: 2px solid var(--pdf-accent);
  outline-offset: 2px;
}

/* ---- aria-live status region ---- */
.pdf-sr-status {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
  border: 0;
}

/* ---- Touch targets (44px minimum) ---- */
button,
.toggle-pill,
.inline-item {
  min-height: 44px;
}

@media (max-width: 960px) {
  .pdf-shell-grid { grid-template-columns: 1fr; }

  .pdf-works-package .package-nav-toggle {
    left: 16px;
    right: auto;
    top: 76px;
    bottom: auto;
  }

  .library-header-actions {
    justify-content: flex-start;
  }
}

@media (max-width: 900px) {
  .pdf-shell-grid { grid-template-columns: 1fr; }

  .library-header-actions {
    justify-content: flex-start;
    flex-wrap: wrap;
  }
}

@media (max-width: 600px) {
  .pdf-shell-grid {
    grid-template-columns: 1fr;
  }

  .meta-row {
    flex-direction: column;
    gap: 8px;
  }

  .workspace-actions {
    width: 100%;
    flex-wrap: wrap;
  }

  .workspace-actions button {
    flex: 1;
  }

  .panel-actions {
    flex-direction: column;
  }

  .panel-actions button {
    width: 100%;
  }

  .button-row {
    flex-direction: column;
  }

  .button-row button {
    width: 100%;
  }

  .thumb-grid {
    grid-template-columns: repeat(auto-fit, minmax(80px, 1fr));
  }

  .inline-list {
    gap: 4px;
  }

  .inline-item {
    padding: 8px 10px;
  }

  .library-header-row {
    flex-direction: column;
    align-items: flex-start;
  }

  .library-header-actions {
    justify-content: flex-start;
    width: 100%;
  }

  .toggle-group {
    flex-wrap: wrap;
  }
}