/* ==========================================================================
   quickPDFs — Component overrides
   One section per UI area. Every color here references a token from
   index.css — no hard-coded hex values.
   ========================================================================== */

/* ---------- Navbar ---------- */

.navbar.app-navbar {
  background: var(--navbar-bg) !important;
  border-bottom: 1px solid var(--border);
  backdrop-filter: saturate(140%) blur(6px);
}

.app-navbar .navbar-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  font-size: 1.15rem;
  color: var(--text-1) !important;
}

.app-navbar .navbar-brand img {
  border-radius: 8px;
}

.app-navbar .navbar-brand .brand-pdf {
  color: var(--accent-ink);
}

.navbar-icon-group {
  display: flex;
  align-items: center;
  gap: 10px;
}

.navbar-icon-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--toolbar-btn-bg);
  color: var(--text-2);
  cursor: pointer;
  transition: color 0.15s, border-color 0.15s, transform 0.15s;
}

.navbar-icon-btn:hover {
  color: var(--accent-ink);
  border-color: var(--accent);
  transform: translateY(-1px);
}

/* Animated hamburger — morphs into an X on open */
.menu-toggle-btn.is-open {
  color: var(--accent-ink);
  border-color: var(--accent);
}

.hamburger-box {
  position: relative;
  display: inline-block;
  width: 18px;
  height: 14px;
}

.hamburger-inner,
.hamburger-inner::before,
.hamburger-inner::after {
  position: absolute;
  left: 0;
  width: 18px;
  height: 2px;
  border-radius: 2px;
  background: currentColor;
  transition: transform 0.28s cubic-bezier(0.4, 0, 0.2, 1), opacity 0.2s ease, top 0.2s ease;
}

.hamburger-inner {
  top: 6px;
}

.hamburger-inner::before {
  content: "";
  top: -6px;
}

.hamburger-inner::after {
  content: "";
  top: 6px;
}

.menu-toggle-btn.is-open .hamburger-inner {
  transform: rotate(45deg);
  transition-delay: 0.1s;
}

.menu-toggle-btn.is-open .hamburger-inner::before {
  top: 0;
  opacity: 0;
  transition: top 0.1s ease, opacity 0.1s ease;
}

.menu-toggle-btn.is-open .hamburger-inner::after {
  top: 0;
  transform: rotate(-90deg);
  transition: top 0.1s ease, transform 0.28s cubic-bezier(0.4, 0, 0.2, 1) 0.1s;
}

/* ---------- Offcanvas sidebar ---------- */

.offcanvas.app-offcanvas {
  background: var(--bg-surface) !important;
  color: var(--text-1);
  border-left: 1px solid var(--border);
}

.sidebar-section {
  margin-bottom: 24px;
}

.sidebar-section-label {
  color: var(--text-3);
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.6px;
  margin-bottom: 8px;
}

.sidebar-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.sidebar-list li + li {
  margin-top: 2px;
}

.sidebar-list .sidebar-link {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
  padding: 9px 10px;
  border-radius: 8px;
  border: none;
  background: transparent;
  color: var(--text-2);
  text-decoration: none;
  text-align: left;
  font-family: inherit;
  font-weight: 600;
  font-size: 0.92rem;
  cursor: pointer;
}

.sidebar-list .sidebar-link i {
  width: 18px;
  text-align: center;
  color: var(--text-3);
}

.sidebar-list .sidebar-link:hover,
.sidebar-list .sidebar-link.active {
  background: var(--accent-dim);
  color: var(--accent-ink);
}

.sidebar-list .sidebar-link:hover i,
.sidebar-list .sidebar-link.active i {
  color: var(--accent-ink);
}

.sidebar-credit {
  padding: 0 10px;
  font-size: 0.82rem;
  color: var(--text-3);
  margin: 10px 0 0;
}

.sidebar-credit .fa-heart {
  color: var(--danger);
}

.version-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.8rem;
  color: var(--text-3);
}

.version-pill b {
  color: var(--accent-ink);
}

/* ---------- Page title (compact hero — playbook §4.8) ---------- */

.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin: 0 0 10px;
  padding: 5px 14px;
  border: 1px solid var(--accent);
  border-radius: 999px;
  background: var(--accent-dim);
  color: var(--accent-ink);
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.4px;
  text-transform: uppercase;
}

.page-title {
  font-size: clamp(1.15rem, 2vw, 1.5rem);
  font-weight: 800;
  letter-spacing: -0.2px;
  line-height: 1.3;
  margin: 0 auto;
  max-width: 720px;
  color: var(--text-1);
}

/* ---------- Home (all 17 tools, grouped by category, at a glance) ---------- */

.home-cat-section {
  margin-bottom: 26px;
}

.home-cat-heading {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.92rem;
  font-weight: 800;
  color: var(--accent-ink);
  margin-bottom: 12px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border);
}

.home-tool-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 12px;
}

.home-tool-card {
  --tab-color: var(--accent-ink);
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  text-align: left;
  gap: 8px;
  padding: 16px;
  border-radius: 14px;
  border: 1px solid var(--border);
  background: var(--card-bg);
  cursor: pointer;
  transition: border-color 0.15s, transform 0.12s, box-shadow 0.15s;
}

.home-tool-card:hover,
.home-tool-card:focus-visible {
  border-color: var(--tab-color);
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
  outline: none;
}

.home-tool-card .htc-icon {
  width: 38px;
  height: 38px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: color-mix(in srgb, var(--tab-color) 16%, transparent);
  color: var(--tab-color);
  font-size: 1.05rem;
}

.home-tool-card .htc-name {
  font-weight: 700;
  font-size: 0.9rem;
  color: var(--text-1);
}

.home-tool-card .htc-desc {
  font-size: 0.78rem;
  color: var(--text-3);
  line-height: 1.4;
}

.home-tool-card[data-tab-color="merge"]     { --tab-color: var(--tool-teal); }
.home-tool-card[data-tab-color="split"]     { --tab-color: var(--tool-purple); }
.home-tool-card[data-tab-color="compress"]  { --tab-color: var(--tool-green); }
.home-tool-card[data-tab-color="edit"]      { --tab-color: var(--tool-blue); }
.home-tool-card[data-tab-color="redact"]    { --tab-color: var(--tool-rose); }
.home-tool-card[data-tab-color="watermark"] { --tab-color: var(--tool-amber); }
.home-tool-card[data-tab-color="pagenum"]   { --tab-color: var(--tool-teal); }
.home-tool-card[data-tab-color="toimg"]     { --tab-color: var(--tool-blue); }
.home-tool-card[data-tab-color="fromimg"]   { --tab-color: var(--tool-green); }
.home-tool-card[data-tab-color="text"]      { --tab-color: var(--tool-purple); }
.home-tool-card[data-tab-color="meta"]      { --tab-color: var(--tool-amber); }
.home-tool-card[data-tab-color="crop"]      { --tab-color: var(--tool-green); }
.home-tool-card[data-tab-color="forms"]     { --tab-color: var(--tool-teal); }
.home-tool-card[data-tab-color="unlock"]    { --tab-color: var(--tool-amber); }
.home-tool-card[data-tab-color="compare"]   { --tab-color: var(--tool-blue); }
.home-tool-card[data-tab-color="toword"]    { --tab-color: var(--tool-rose); }

@media (max-width: 480px) {
  .home-tool-grid {
    grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  }
}

/* ---------- Card / tool shell ---------- */

.tool-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 16px;
  box-shadow: var(--shadow-md);
  padding: 22px;
}

.tool-card-desc {
  color: var(--text-3);
  font-size: 0.85rem;
  margin: 0 0 18px;
}

/* ---------- Tool switcher ---------- */
/* Two-level navigation: 5 category pills on top, then an aligned grid of
   that category's tool tiles (max 4) below — 16 tools without ever showing
   more than ~9 buttons at once. */

.tool-cats {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 10px;
}

.tool-cat {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--toolbar-btn-bg);
  color: var(--text-2);
  font-weight: 700;
  font-size: 0.82rem;
  cursor: pointer;
  transition: color 0.15s, border-color 0.15s, background 0.15s;
}

.tool-cat:hover {
  color: var(--accent-ink);
  border-color: var(--accent);
}

.tool-cat.active {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--accent-contrast-text);
}

.tool-cat .cat-count {
  font-size: 0.68rem;
  font-weight: 800;
  opacity: 0.75;
}

.tool-tabs {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 20px;
}

.tool-tab {
  --tab-color: var(--accent-ink);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 11px 8px;
  border-radius: 10px;
  color: var(--text-2);
  font-weight: 700;
  font-size: 0.82rem;
  white-space: nowrap;
  cursor: pointer;
  border: 1px solid var(--border);
  background: var(--toolbar-btn-bg);
  transition: color 0.15s, border-color 0.15s, transform 0.12s, box-shadow 0.15s;
}

.tool-tab i {
  font-size: 0.95rem;
}

.tool-tab:hover {
  color: var(--tab-color);
  border-color: var(--tab-color);
  transform: translateY(-1px);
  box-shadow: var(--shadow-sm);
}

.tool-tab.active {
  color: var(--tab-color);
  border-color: var(--tab-color);
  background: var(--accent-dim); /* fallback where color-mix is unsupported */
  background: color-mix(in srgb, var(--tab-color) 14%, transparent);
}

@media (max-width: 575.98px) {
  .tool-tabs {
    grid-template-columns: repeat(2, 1fr);
  }

  .tool-tab {
    font-size: 0.76rem;
    padding: 9px 6px;
  }

  .tool-cat {
    font-size: 0.74rem;
    padding: 7px 12px;
  }
}

.tool-tab[data-tab-color="merge"]     { --tab-color: var(--tool-teal); }
.tool-tab[data-tab-color="split"]     { --tab-color: var(--tool-purple); }
.tool-tab[data-tab-color="compress"]  { --tab-color: var(--tool-green); }
.tool-tab[data-tab-color="edit"]      { --tab-color: var(--tool-blue); }
.tool-tab[data-tab-color="redact"]    { --tab-color: var(--tool-rose); }
.tool-tab[data-tab-color="watermark"] { --tab-color: var(--tool-amber); }
.tool-tab[data-tab-color="pagenum"]   { --tab-color: var(--tool-teal); }
.tool-tab[data-tab-color="toimg"]     { --tab-color: var(--tool-blue); }
.tool-tab[data-tab-color="fromimg"]   { --tab-color: var(--tool-green); }
.tool-tab[data-tab-color="text"]      { --tab-color: var(--tool-purple); }
.tool-tab[data-tab-color="meta"]      { --tab-color: var(--tool-amber); }
.tool-tab[data-tab-color="crop"]      { --tab-color: var(--tool-green); }
.tool-tab[data-tab-color="forms"]     { --tab-color: var(--tool-teal); }
.tool-tab[data-tab-color="unlock"]    { --tab-color: var(--tool-amber); }
.tool-tab[data-tab-color="compare"]   { --tab-color: var(--tool-blue); }
.tool-tab[data-tab-color="toword"]    { --tab-color: var(--tool-rose); }

.tool-pane {
  display: none;
}

.tool-pane.active {
  display: block;
}

/* ---------- Toolbar buttons (icon + label) ---------- */

.toolbar-group {
  display: flex;
  flex-wrap: wrap;
  align-items: stretch;
  gap: 8px;
  margin-bottom: 10px;
}

.toolbar-group + .toolbar-group {
  padding-top: 10px;
  border-top: 1px dashed var(--border-subtle);
}

.toolbar-label {
  flex: 0 0 100%;
  color: var(--text-3);
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.6px;
  margin-bottom: 2px;
}

.toolbar-btn {
  --hover-color: var(--accent-ink);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  min-width: 84px;
  flex: 1 1 84px;
  background: var(--toolbar-btn-bg);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 10px 8px;
  color: var(--text-2);
  cursor: pointer;
  font-size: 0.72rem;
  font-weight: 700;
  text-align: center;
  transition: border-color 0.15s, color 0.15s, transform 0.12s, box-shadow 0.15s;
}

.toolbar-btn i {
  font-size: 1.05rem;
}

.toolbar-btn:hover,
.toolbar-btn:focus-visible {
  border-color: var(--hover-color);
  color: var(--hover-color);
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
}

.toolbar-btn:disabled {
  opacity: 0.45;
  cursor: not-allowed;
  transform: none;
}

.toolbar-btn.tb-io      { --hover-color: var(--tool-blue); }
.toolbar-btn.tb-copy    { --hover-color: var(--success); }
.toolbar-btn.tb-danger  { --hover-color: var(--danger); }
.toolbar-btn.tb-neutral { --hover-color: var(--text-1); }
.toolbar-btn.tb-accent  { --hover-color: var(--accent-ink); }
.toolbar-btn.tb-teal    { --hover-color: var(--tool-teal); }
.toolbar-btn.tb-purple  { --hover-color: var(--tool-purple); }

.toolbar-btn.is-active {
  border-color: var(--hover-color);
  color: var(--hover-color);
  background: var(--accent-dim);
}

/* Primary filled action button (Merge, Split, Apply...) */
.btn-accent {
  background: var(--accent);
  color: var(--accent-contrast-text);
  border: 1px solid var(--accent);
  font-weight: 700;
  border-radius: 10px;
  padding: 10px 20px;
  transition: background 0.15s, transform 0.12s, box-shadow 0.15s;
}

.btn-accent:hover:not(:disabled) {
  background: var(--accent-hover);
  border-color: var(--accent-hover);
  color: var(--accent-contrast-text);
  transform: translateY(-1px);
  box-shadow: var(--shadow-sm);
}

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

.btn-outline-app {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text-2);
  border-radius: 10px;
  padding: 10px 18px;
  font-weight: 700;
  transition: border-color 0.15s, color 0.15s;
}

.btn-outline-app:hover:not(:disabled) {
  border-color: var(--accent);
  color: var(--accent-ink);
}

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

.btn-outline-app.btn-sm {
  padding: 6px 12px;
  font-size: 0.82rem;
}

.btn-danger-app {
  background: var(--danger);
  color: #fff;
  border: 1px solid var(--danger);
  font-weight: 700;
  border-radius: 10px;
  padding: 10px 20px;
  transition: transform 0.12s, box-shadow 0.15s, filter 0.15s;
}

.btn-danger-app:hover {
  filter: brightness(1.08);
  transform: translateY(-1px);
  box-shadow: var(--shadow-sm);
  color: #fff;
}

.form-switch .form-check-input:checked {
  background-color: var(--accent);
  border-color: var(--accent);
}

.form-switch .form-check-input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 0.2rem var(--accent-dim);
}

.form-check-input:checked {
  background-color: var(--accent);
  border-color: var(--accent);
}

/* ---------- Form controls ---------- */

.app-input,
.app-select,
textarea.app-input {
  background: var(--input-bg);
  border: 1px solid var(--input-border);
  color: var(--text-1);
  border-radius: 10px;
  padding: 10px 12px;
  font-family: "JetBrains Mono", monospace;
  font-size: 0.9rem;
  width: 100%;
}

.app-input::placeholder {
  color: var(--text-3);
}

.app-input:focus,
.app-select:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-dim);
}

.field-label {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--text-3);
  margin-bottom: 6px;
  display: block;
}

.field-block {
  margin-bottom: 16px;
}

.field-error {
  color: var(--danger);
  font-size: 0.82rem;
  margin-top: 6px;
  display: none;
}

.field-error.show {
  display: block;
}

/* Native color input, aligned with the app inputs */
.app-color {
  width: 48px;
  height: 42px;
  padding: 4px;
  background: var(--input-bg);
  border: 1px solid var(--input-border);
  border-radius: 10px;
  cursor: pointer;
}

/* Range slider */
input[type="range"].app-range {
  accent-color: var(--accent);
  width: 100%;
}

.range-value {
  font-family: "JetBrains Mono", monospace;
  font-size: 0.82rem;
  color: var(--accent-ink);
  font-weight: 700;
  min-width: 46px;
  text-align: right;
}

/* Segmented control (radio group rendered as buttons) */
.seg-control {
  display: inline-flex;
  flex-wrap: wrap;
  gap: 0;
  border: 1px solid var(--border);
  border-radius: 10px;
  overflow: hidden;
}

.seg-control .seg-btn {
  border: none;
  background: var(--toolbar-btn-bg);
  color: var(--text-2);
  font-size: 0.82rem;
  font-weight: 700;
  padding: 9px 14px;
  cursor: pointer;
  border-right: 1px solid var(--border);
}

.seg-control .seg-btn:last-child {
  border-right: none;
}

.seg-control .seg-btn.active {
  background: var(--accent);
  color: var(--accent-contrast-text);
}

/* 3×3 position picker (watermark) */
.pos-grid {
  display: grid;
  grid-template-columns: repeat(3, 38px);
  gap: 4px;
}

.pos-grid button {
  width: 38px;
  height: 32px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--toolbar-btn-bg);
  color: var(--text-3);
  cursor: pointer;
  font-size: 0.7rem;
}

.pos-grid button:hover {
  border-color: var(--accent);
  color: var(--accent-ink);
}

.pos-grid button.active {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--accent-contrast-text);
}

/* Inline informational note */
.notice {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  background: var(--info-dim);
  border: 1px solid var(--info);
  border-radius: 10px;
  padding: 10px 12px;
  font-size: 0.83rem;
  color: var(--text-2);
  margin: 12px 0;
}

.notice i {
  color: var(--info);
  margin-top: 2px;
}

.notice.notice-warn {
  background: var(--warning-dim);
  border-color: var(--warning);
}

.notice.notice-warn i {
  color: var(--warning);
}

/* ---------- Dropzone / file slot ---------- */

.dropzone {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
  width: 100%;
  padding: 42px 20px;
  border: 2px dashed var(--border);
  border-radius: 14px;
  background: var(--input-bg);
  color: var(--text-2);
  font-weight: 700;
  cursor: pointer;
  text-align: center;
  transition: border-color 0.15s, color 0.15s, background 0.15s;
}

.dropzone:hover,
.dropzone:focus-visible,
.dropzone.drag-over {
  border-color: var(--accent);
  color: var(--accent-ink);
  background: var(--accent-dim);
}

.dropzone i {
  font-size: 2rem;
  color: var(--accent-ink);
}

.dropzone .dz-note {
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--text-3);
}

/* Loaded-file chip */
.file-chip {
  display: flex;
  align-items: center;
  gap: 12px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 10px 14px;
  margin-bottom: 16px;
  scroll-margin-top: 84px; /* auto-scroll target — clear the fixed navbar */
}

.file-chip .fc-icon {
  flex-shrink: 0;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 10px;
  background: var(--accent-dim);
  color: var(--accent-ink);
  font-size: 1.1rem;
}

.file-chip .fc-body {
  min-width: 0;
  flex: 1;
}

.file-chip .fc-name {
  font-weight: 700;
  font-size: 0.9rem;
  color: var(--text-1);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.file-chip .fc-meta {
  font-size: 0.75rem;
  color: var(--text-3);
  font-family: "JetBrains Mono", monospace;
}

.file-chip .fc-actions {
  display: flex;
  gap: 6px;
  flex-shrink: 0;
}

.icon-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text-3);
  cursor: pointer;
  transition: color 0.15s, border-color 0.15s;
}

.icon-btn:hover {
  color: var(--accent-ink);
  border-color: var(--accent);
}

.icon-btn.danger:hover {
  color: var(--danger);
  border-color: var(--danger);
}

/* ---------- File list (Merge / Images→PDF) ---------- */

.file-list {
  list-style: none;
  margin: 0 0 16px;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
  scroll-margin-top: 84px; /* auto-scroll target — clear the fixed navbar */
}

.file-row {
  display: flex;
  align-items: center;
  gap: 12px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 8px 12px;
}

.file-row.drag-over-row {
  border-color: var(--accent);
  background: var(--accent-dim);
}

.file-row .fr-handle {
  color: var(--text-3);
  cursor: grab;
  flex-shrink: 0;
}

.file-row .fr-thumb {
  width: 44px;
  height: 56px;
  flex-shrink: 0;
  border-radius: 6px;
  border: 1px solid var(--border-subtle);
  background: var(--paper);
  object-fit: cover;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-ink);
  overflow: hidden;
}

.file-row .fr-thumb img,
.file-row .fr-thumb canvas {
  max-width: 100%;
  max-height: 100%;
}

.file-row .fr-body {
  min-width: 0;
  flex: 1;
}

.file-row .fr-name {
  font-weight: 700;
  font-size: 0.88rem;
  color: var(--text-1);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.file-row .fr-meta {
  font-size: 0.73rem;
  color: var(--text-3);
  font-family: "JetBrains Mono", monospace;
}

.file-row .fr-actions {
  display: flex;
  gap: 6px;
  flex-shrink: 0;
}

/* ---------- Page-thumbnail grid (Organize) ---------- */

.thumb-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  gap: 14px;
  padding: 16px;
  background: var(--stage-bg);
  border: 1px solid var(--border);
  border-radius: 14px;
  margin-bottom: 16px;
  min-height: 120px;
}

.page-tile {
  position: relative;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 8px 8px 4px;
  cursor: grab;
  transition: border-color 0.15s, transform 0.12s, box-shadow 0.15s;
}

.page-tile:hover {
  border-color: var(--accent);
  box-shadow: var(--shadow-sm);
}

.page-tile.dragging {
  opacity: 0.4;
}

.page-tile.drag-over-tile {
  border-color: var(--accent);
  background: var(--accent-dim);
}

.page-tile .pt-canvas-wrap {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  height: 170px;
  overflow: hidden;
  background: var(--stage-bg);
  border-radius: 6px;
}

.page-tile canvas {
  max-width: 100%;
  max-height: 100%;
  background: var(--paper);
  box-shadow: var(--shadow-sm);
  transition: transform 0.2s ease;
}

.page-tile .pt-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 6px;
}

.page-tile .pt-num {
  font-size: 0.72rem;
  font-weight: 800;
  color: var(--text-3);
  font-family: "JetBrains Mono", monospace;
}

.page-tile .pt-actions {
  display: flex;
  gap: 2px;
}

.page-tile .pt-actions button {
  width: 26px;
  height: 26px;
  border: none;
  border-radius: 6px;
  background: transparent;
  color: var(--text-3);
  cursor: pointer;
  font-size: 0.78rem;
}

.page-tile .pt-actions button:hover {
  background: var(--accent-dim);
  color: var(--accent-ink);
}

.page-tile .pt-actions button.pt-delete:hover {
  background: var(--danger-dim);
  color: var(--danger);
}

.page-tile.is-deleted {
  opacity: 0.45;
}

.page-tile.is-deleted canvas {
  filter: grayscale(1);
}

.page-tile.is-deleted::after {
  content: "Removed — click ↺ to restore";
  position: absolute;
  inset: auto 8px 40px 8px;
  text-align: center;
  font-size: 0.68rem;
  font-weight: 800;
  color: var(--danger);
  background: var(--bg-overlay);
  border-radius: 6px;
  padding: 4px;
}

/* ---------- Viewer stage (Edit / Redact) ---------- */

.stage-toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-bottom: 10px;
}

.stage-toolbar .st-sep {
  width: 1px;
  align-self: stretch;
  background: var(--border);
  margin: 0 4px;
}

.stage-tool-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--toolbar-btn-bg);
  color: var(--text-2);
  font-size: 0.78rem;
  font-weight: 700;
  padding: 8px 10px;
  cursor: pointer;
  transition: color 0.15s, border-color 0.15s, background 0.15s;
}

.stage-tool-btn:hover {
  color: var(--accent-ink);
  border-color: var(--accent);
}

.stage-tool-btn.active {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--accent-contrast-text);
}

.stage-wrap {
  position: relative;
  display: flex;
  justify-content: center;
  background: var(--stage-bg);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 20px;
  overflow: auto;
  max-height: 72vh;
  margin-bottom: 12px;
}

.stage-page {
  position: relative;
  flex-shrink: 0;
  box-shadow: var(--shadow-md);
}

.stage-page canvas.stage-canvas {
  display: block;
  background: var(--paper);
}

/* Transparent interaction/annotation layer on top of the page canvas */
.anno-layer {
  position: absolute;
  inset: 0;
  overflow: hidden;
}

.anno-layer.tool-armed {
  cursor: crosshair;
}

.anno-el {
  position: absolute;
  user-select: none;
}

.anno-el.selectable {
  cursor: move;
}

.anno-el.selected {
  outline: 2px dashed var(--accent);
  outline-offset: 1px;
}

.anno-el .anno-text {
  font-family: Helvetica, Arial, sans-serif;
  white-space: pre-wrap;
  line-height: 1.15;
  pointer-events: none;
}

.anno-el svg {
  display: block;
  overflow: visible;
  pointer-events: none;
}

.anno-el img {
  width: 100%;
  height: 100%;
  pointer-events: none;
}

.anno-handle {
  position: absolute;
  right: -7px;
  bottom: -7px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--accent);
  border: 2px solid var(--paper);
  cursor: nwse-resize;
  display: none;
}

.anno-el.selected .anno-handle {
  display: block;
}

/* Redact boxes */
.redact-box {
  position: absolute;
  background: rgba(0, 0, 0, 0.82);
  border: 1px solid var(--danger);
  cursor: pointer;
}

.redact-box:hover::after {
  content: "\00d7";
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 1rem;
  font-weight: 800;
  background: var(--danger-dim);
}

/* Crop box — bright dashed frame with everything outside dimmed */
.crop-box {
  position: absolute;
  border: 2px dashed var(--accent);
  box-shadow: 0 0 0 9999px rgba(0, 0, 0, 0.45);
  pointer-events: none;
}

/* Compare view */
.compare-stage {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  justify-content: center;
  align-items: flex-start;
}

.compare-cell {
  text-align: center;
  max-width: 100%;
}

.compare-label {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--text-3);
  font-family: "JetBrains Mono", monospace;
  margin-bottom: 6px;
  max-width: 480px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.compare-missing {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 200px;
  min-width: 240px;
  border: 2px dashed var(--border);
  border-radius: 10px;
  color: var(--text-3);
  font-size: 0.85rem;
  padding: 20px;
}

/* Fill Forms field rows */
.form-field-row {
  display: grid;
  grid-template-columns: minmax(140px, 260px) 1fr;
  gap: 12px;
  align-items: center;
  padding: 10px 12px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 10px;
  margin-bottom: 8px;
}

.form-field-row .field-label {
  margin: 0;
  overflow-wrap: anywhere;
}

@media (max-width: 575.98px) {
  .form-field-row {
    grid-template-columns: 1fr;
  }
}

/* Pager */
.pager {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  margin-bottom: 12px;
}

.pager .pager-label {
  font-family: "JetBrains Mono", monospace;
  font-size: 0.85rem;
  color: var(--text-2);
  min-width: 90px;
  text-align: center;
}

/* Contextual properties bar (Edit tool) */
.prop-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 8px 12px;
  margin-bottom: 10px;
}

.prop-bar label {
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--text-3);
  display: flex;
  align-items: center;
  gap: 6px;
  margin: 0;
}

.prop-bar .app-input,
.prop-bar .app-select {
  width: auto;
  padding: 5px 8px;
  font-size: 0.8rem;
}

/* Watermark live preview */
.wm-preview-text {
  position: absolute;
  white-space: nowrap;
  font-weight: 700;
  font-family: Helvetica, Arial, sans-serif;
  pointer-events: none;
  transform-origin: center;
  line-height: 1;
}

/* ---------- Signature pad ---------- */

.signature-pad-wrap {
  border: 2px dashed var(--border);
  border-radius: 12px;
  background: var(--paper);
  display: flex;
  justify-content: center;
  overflow: hidden;
}

.signature-pad-wrap canvas {
  touch-action: none;
  cursor: crosshair;
}

/* ---------- Results ---------- */

.result-card {
  display: none;
  align-items: center;
  gap: 14px;
  background: var(--success-dim);
  border: 1px solid var(--success);
  border-radius: 12px;
  padding: 14px 16px;
  margin-top: 16px;
  flex-wrap: wrap;
}

.result-card.show {
  display: flex;
}

.result-card .rc-icon {
  width: 42px;
  height: 42px;
  border-radius: 10px;
  background: var(--success);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  flex-shrink: 0;
}

.result-card .rc-body {
  flex: 1;
  min-width: 200px;
}

.result-card .rc-title {
  font-weight: 800;
  color: var(--text-1);
  font-size: 0.92rem;
}

.result-card .rc-meta {
  font-size: 0.78rem;
  color: var(--text-2);
  font-family: "JetBrains Mono", monospace;
}

/* Output image grid (PDF → Images) */
.img-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  gap: 14px;
  margin-top: 16px;
}

.img-grid .img-cell {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 8px;
  text-align: center;
}

.img-grid .img-cell img {
  max-width: 100%;
  max-height: 160px;
  border-radius: 6px;
  background: var(--paper);
  box-shadow: var(--shadow-sm);
}

.img-grid .img-cell .ic-label {
  font-size: 0.72rem;
  color: var(--text-3);
  font-family: "JetBrains Mono", monospace;
  margin: 6px 0;
}

/* Text output (Extract Text) */
textarea.text-output {
  min-height: 320px;
  resize: vertical;
}

/* ---------- Busy overlay (performance UX — playbook §7) ---------- */

.busy-overlay {
  position: fixed;
  inset: 0;
  z-index: 1300;
  background: var(--bg-overlay);
  display: none;
  align-items: center;
  justify-content: center;
  backdrop-filter: blur(2px);
}

.busy-overlay.active {
  display: flex;
}

.busy-card {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 16px;
  box-shadow: var(--shadow-lg);
  padding: 28px 36px;
  text-align: center;
  min-width: min(340px, 86vw);
}

.busy-card .spinner-ring {
  width: 44px;
  height: 44px;
  margin: 0 auto 14px;
  border: 4px solid var(--accent-dim);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: busy-spin 0.9s linear infinite;
}

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

.busy-card .busy-label {
  font-weight: 800;
  color: var(--text-1);
  margin-bottom: 4px;
}

.busy-card .busy-sub {
  font-size: 0.8rem;
  color: var(--text-3);
  font-family: "JetBrains Mono", monospace;
  min-height: 1.2em;
  margin-bottom: 12px;
}

.busy-card .busy-track {
  height: 8px;
  border-radius: 999px;
  background: var(--accent-dim);
  overflow: hidden;
}

.busy-card .busy-fill {
  height: 100%;
  width: 0;
  border-radius: 999px;
  background: var(--accent);
  transition: width 0.2s ease;
}

/* ---------- Modals ---------- */

.modal-content.app-modal {
  background: var(--modal-bg);
  color: var(--text-1);
  border: 1px solid var(--border);
  border-radius: 14px;
}

.app-modal .modal-header {
  background: var(--modal-hdr-bg);
  border-bottom: 1px solid var(--border);
  border-radius: 14px 14px 0 0;
}

.app-modal .modal-title {
  font-weight: 800;
}

.app-modal .modal-footer {
  border-top: 1px solid var(--border);
}

.app-modal .btn-close,
.app-offcanvas .btn-close {
  filter: none;
  opacity: 0.7;
}

body:not(.theme-light) .app-modal .btn-close,
body:not(.theme-light) .app-offcanvas .btn-close {
  filter: invert(1) grayscale(1);
}

/* About modal */
.about-feature-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 10px;
  margin: 16px 0;
  padding: 0;
}

.about-feature-list li {
  list-style: none;
  background: var(--bg-page);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 10px 12px;
  font-size: 0.85rem;
  color: var(--text-2);
}

.about-feature-list li i {
  color: var(--accent-ink);
  margin-right: 8px;
}

.faq-accordion .accordion-item {
  background: var(--bg-page);
  border: 1px solid var(--border);
}

.faq-accordion .accordion-button {
  background: var(--bg-page);
  color: var(--text-1);
  font-weight: 700;
  font-size: 0.92rem;
}

.faq-accordion .accordion-button:not(.collapsed) {
  background: var(--accent-dim);
  color: var(--accent-ink);
}

.faq-accordion .accordion-button:focus {
  box-shadow: 0 0 0 3px var(--accent-dim);
}

.faq-accordion .accordion-button::after {
  filter: grayscale(1);
}

.faq-accordion .accordion-body {
  color: var(--text-2);
  font-size: 0.88rem;
}

/* ---------- Toasts (hardened per playbook §4.4) ---------- */

.toast-container {
  max-width: min(380px, calc(100vw - 24px));
  z-index: 1400;
}

.toast.app-toast {
  border: 1px solid var(--border);
  border-radius: 12px;
  max-height: 220px;
  box-shadow: var(--shadow-lg);
}

.app-toast .toast-body {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  max-height: 220px;
  overflow-y: auto;
  overflow-wrap: anywhere;
  word-break: break-word;
}

.app-toast .toast-close-btn {
  flex-shrink: 0;
}

.app-toast.text-bg-warning { background: var(--warning) !important; color: #221507 !important; }
.app-toast.text-bg-success { background: var(--success) !important; color: #0c1f14 !important; }
.app-toast.text-bg-danger  { background: var(--danger) !important;  color: #fff !important; }
.app-toast.text-bg-info    { background: var(--info) !important;    color: #071824 !important; }

/* ---------- Drag & drop overlay ---------- */

.drop-overlay {
  position: fixed;
  inset: 0;
  z-index: 1200;
  background: var(--bg-overlay);
  display: none;
  align-items: center;
  justify-content: center;
  backdrop-filter: blur(2px);
}

.drop-overlay.active {
  display: flex;
}

.drop-overlay-card {
  border: 2px dashed var(--accent);
  border-radius: 20px;
  padding: 48px 64px;
  background: var(--bg-surface);
  color: var(--text-1);
  text-align: center;
  font-weight: 700;
}

.drop-overlay-card i {
  font-size: 2.5rem;
  color: var(--accent-ink);
  display: block;
  margin-bottom: 12px;
}

/* ---------- Tooltips ---------- */

.tooltip .tooltip-inner {
  background: var(--bg-elevated);
  color: var(--text-1);
  border: 1px solid var(--border);
  font-size: 0.78rem;
}

/* ---------- Responsive ---------- */

@media (max-width: 576px) {
  .toolbar-btn {
    min-width: 72px;
    flex: 1 1 72px;
    font-size: 0.66rem;
  }

  .tool-card {
    padding: 14px;
  }

  .stage-wrap {
    padding: 10px;
    max-height: 64vh;
  }

  .thumb-grid {
    grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
    gap: 10px;
    padding: 10px;
  }

  .page-tile .pt-canvas-wrap {
    height: 130px;
  }

  .dropzone {
    padding: 30px 14px;
  }
}

/* ---------- Stage zoom button + Lightbox (full-size zoomable preview) ---- */

.stage-zoom-btn {
  position: absolute;
  top: 8px;
  right: 8px;
  z-index: 3;
  width: 30px;
  height: 30px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--bg-elevated);
  color: var(--text-2);
  cursor: pointer;
  opacity: 0.85;
}

.stage-zoom-btn:hover {
  opacity: 1;
  border-color: var(--accent);
  color: var(--accent-ink);
}

.lightbox-overlay {
  position: fixed;
  inset: 0;
  z-index: 2000;
  display: none;
  flex-direction: column;
  background: rgba(10, 6, 5, 0.92);
  backdrop-filter: blur(3px);
}

.lightbox-overlay.open {
  display: flex;
}

.lightbox-toolbar {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px;
  flex-shrink: 0;
}

.lightbox-btn {
  width: 38px;
  height: 38px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 10px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  background: rgba(255, 255, 255, 0.08);
  color: #fff;
  cursor: pointer;
}

.lightbox-btn:hover {
  background: rgba(255, 255, 255, 0.16);
}

.lightbox-btn.lightbox-close {
  margin-left: 18px;
}

.lightbox-zoom-label {
  color: #fff;
  font-family: "JetBrains Mono", monospace;
  font-size: 0.85rem;
  min-width: 48px;
  text-align: center;
}

.lightbox-scroll {
  flex: 1;
  overflow: auto;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.lightbox-img {
  max-width: 92vw;
  max-height: 82vh;
  object-fit: contain;
  transform-origin: center center;
  transition: transform 0.15s ease;
  background: var(--paper);
  border-radius: 4px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
}

@media (max-width: 576px) {
  .lightbox-btn {
    width: 34px;
    height: 34px;
  }

  .lightbox-btn.lightbox-close {
    margin-left: 8px;
  }
}