/* ==========================================================================
   quickImages — Component overrides
   One section per UI area. Every color here references a token from
   index.css — no hard-coded hex values. Navbar/offcanvas/form-control/
   dropzone/modal/toast/busy-overlay sections are ported near-verbatim from
   quickPdf's theme-enhancements.css (same generic component contracts,
   playbook §4) — only the tool-switcher category colors and the
   canvas-workspace sections below are new to this project.
   ========================================================================== */

/* ---------- 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-word {
  display: inline-flex;
}

.app-navbar .navbar-brand .brand-hi {
  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);
}

.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;
  /* No margin:auto/max-width centering here — unlike a narrow single-column
     welcome screen, this page's category pills/tool grid below span the
     full container width, so centering just the heading made it visually
     drift right of everything else instead of lining up with it. */
  color: var(--text-1);
}

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

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

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

.home-cat-heading[data-cat="compress"]  { --cat-color: var(--tool-amber); }
.home-cat-heading[data-cat="resize"]    { --cat-color: var(--tool-blue); }
.home-cat-heading[data-cat="color"]     { --cat-color: var(--tool-purple); }
.home-cat-heading[data-cat="creative"]  { --cat-color: var(--tool-rose); }
.home-cat-heading[data-cat="batch"]     { --cat-color: var(--tool-green); }
.home-cat-heading[data-cat="metadata"]  { --cat-color: var(--tool-teal); }
.home-cat-heading[data-cat="advanced"]  { --cat-color: var(--tool-gold); }

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

.home-tool-card {
  --cat-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(--cat-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(--cat-color) 16%, transparent);
  color: var(--cat-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-cat="compress"]  { --cat-color: var(--tool-amber); }
.home-tool-card[data-cat="resize"]    { --cat-color: var(--tool-blue); }
.home-tool-card[data-cat="color"]     { --cat-color: var(--tool-purple); }
.home-tool-card[data-cat="creative"]  { --cat-color: var(--tool-rose); }
.home-tool-card[data-cat="batch"]     { --cat-color: var(--tool-green); }
.home-tool-card[data-cat="metadata"]  { --cat-color: var(--tool-teal); }
.home-tool-card[data-cat="advanced"]  { --cat-color: var(--tool-gold); }

@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: 7 category pills, then that category's tool tiles —
   28 tools without ever showing more than ~6 buttons at once. */

.tool-cats {
  display: flex;
  flex-wrap: nowrap;
  gap: 6px;
  margin-bottom: 10px;
}

.tool-cat {
  --cat-color: var(--accent-ink);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 12px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--toolbar-btn-bg);
  color: var(--text-2);
  font-weight: 700;
  font-size: 0.78rem;
  white-space: nowrap;
  cursor: pointer;
  flex: 1 1 0;
  min-width: 0; /* flex items default to min-width:auto (content-based), which
                   blocks shrinking below that and overflows narrow screens —
                   the same pitfall already hit elsewhere in this family */
  justify-content: center;
  transition: color 0.15s, border-color 0.15s, background 0.15s;
}

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

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

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

.tool-cat[data-cat="compress"]  { --cat-color: var(--tool-amber); }
.tool-cat[data-cat="resize"]    { --cat-color: var(--tool-blue); }
.tool-cat[data-cat="color"]     { --cat-color: var(--tool-purple); }
.tool-cat[data-cat="creative"]  { --cat-color: var(--tool-rose); }
.tool-cat[data-cat="batch"]     { --cat-color: var(--tool-green); }
.tool-cat[data-cat="metadata"]  { --cat-color: var(--tool-teal); }
.tool-cat[data-cat="advanced"]  { --cat-color: var(--tool-gold); }

.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: 0.8rem;
  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);
  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: 0.74rem;
    padding: 9px 6px;
  }

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

  .tool-cat span.cat-label {
    display: none;
  }
}

/* Category color carried onto each tool tile it belongs to */
.tool-tab[data-tab-cat="compress"] { --tab-color: var(--tool-amber); }
.tool-tab[data-tab-cat="resize"]   { --tab-color: var(--tool-blue); }
.tool-tab[data-tab-cat="color"]    { --tab-color: var(--tool-purple); }
.tool-tab[data-tab-cat="creative"] { --tab-color: var(--tool-rose); }
.tool-tab[data-tab-cat="batch"]    { --tab-color: var(--tool-green); }
.tool-tab[data-tab-cat="metadata"] { --tab-color: var(--tool-teal); }
.tool-tab[data-tab-cat="advanced"] { --tab-color: var(--tool-gold); }

.tool-pane {
  display: none;
}

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

/* ---------- Primary/secondary/danger buttons ---------- */

.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,
.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 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;
}

.app-color {
  width: 48px;
  height: 42px;
  padding: 4px;
  background: var(--input-bg);
  border: 1px solid var(--input-border);
  border-radius: 10px;
  cursor: pointer;
}

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;
}

.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/crop anchor) */
.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);
}

.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 single-image chip */
.img-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;
}

.img-chip canvas {
  width: 56px;
  height: 56px;
  object-fit: contain;
  border-radius: 6px;
  border: 1px solid var(--border-subtle);
  background: repeating-conic-gradient(var(--checker-a) 0% 25%, var(--checker-b) 0% 50%) 50% / 12px 12px;
  flex-shrink: 0;
}

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

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

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

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

/* ---------- Multi-image list (Collage / GIF Maker / Image→PDF / Batch) --- */

.file-list {
  list-style: none;
  margin: 0 0 16px;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
  scroll-margin-top: 84px;
}

.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 .fr-thumb {
  width: 48px;
  height: 48px;
  flex-shrink: 0;
  border-radius: 6px;
  border: 1px solid var(--border-subtle);
  background: repeating-conic-gradient(var(--checker-a) 0% 25%, var(--checker-b) 0% 50%) 50% / 12px 12px;
  object-fit: contain;
}

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

.file-row .fr-name {
  font-weight: 700;
  font-size: 0.86rem;
  color: var(--text-1);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.file-row .fr-meta {
  font-size: 0.72rem;
  color: var(--text-3);
  font-family: "JetBrains Mono", monospace;
}

.file-row .fr-actions {
  display: flex;
  gap: 4px;
  flex-shrink: 0;
}

.file-row .fr-actions .btn {
  color: var(--text-3);
  border: 1px solid var(--border);
  background: var(--toolbar-btn-bg);
}

.file-row .fr-actions .btn:hover:not(:disabled) {
  color: var(--accent-ink);
  border-color: var(--accent);
}

/* ---------- Canvas workspace (before/after preview) ---------- */

.workspace {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.canvas-pair {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}

.canvas-pair.single {
  grid-template-columns: 1fr;
}

.canvas-pane {
  display: flex;
  flex-direction: column;
  gap: 8px;
  min-width: 0;
}

.canvas-pane-label {
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--text-3);
}

.canvas-stage {
  background: var(--stage-bg);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 180px;
  max-height: 52vh;
  overflow: auto;
}

.canvas-stage canvas,
.canvas-stage img {
  max-width: 100%;
  max-height: 48vh;
  background: repeating-conic-gradient(var(--checker-a) 0% 25%, var(--checker-b) 0% 50%) 50% / 16px 16px;
  border-radius: 4px;
  box-shadow: var(--shadow-sm);
}

.controls-panel {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 16px;
}

.stats-row {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
  font-size: 0.85rem;
  color: var(--text-2);
  margin: 12px 0;
}

.stats-row .stat-good {
  color: var(--success);
  font-weight: 700;
}

.stats-row .stat-bad {
  color: var(--danger);
  font-weight: 700;
}

.actions-row {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  align-items: center;
}

@media (max-width: 760px) {
  .canvas-pair {
    grid-template-columns: 1fr;
  }

  .canvas-stage {
    max-height: 34vh;
  }

  .canvas-stage canvas,
  .canvas-stage img {
    max-height: 30vh;
  }
}

/* ---------- 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: repeating-conic-gradient(var(--checker-a) 0% 25%, var(--checker-b) 0% 50%) 50% / 20px 20px;
  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;
  }
}

/* ---------- Crop overlay (draggable selection box) ---------- */

.canvas-stage {
  position: relative;
}

.crop-overlay {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.crop-box {
  position: absolute;
  border: 2px dashed var(--accent);
  background: color-mix(in srgb, var(--accent) 10%, transparent);
  box-shadow: 0 0 0 2000px rgba(0, 0, 0, 0.35);
  pointer-events: auto;
  cursor: move;
  touch-action: none;
}

.crop-handle {
  position: absolute;
  width: 16px;
  height: 16px;
  margin: -8px;
  border-radius: 50%;
  background: var(--accent);
  border: 2px solid var(--accent-contrast-text);
  touch-action: none;
}

.crop-handle[data-h="nw"] { left: 0; top: 0; cursor: nwse-resize; }
.crop-handle[data-h="ne"] { left: 100%; top: 0; cursor: nesw-resize; }
.crop-handle[data-h="sw"] { left: 0; top: 100%; cursor: nesw-resize; }
.crop-handle[data-h="se"] { left: 100%; top: 100%; cursor: nwse-resize; }

/* ---------- 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;
}

.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,
.img-grid .img-cell canvas {
  max-width: 100%;
  max-height: 160px;
  border-radius: 6px;
  background: repeating-conic-gradient(var(--checker-a) 0% 25%, var(--checker-b) 0% 50%) 50% / 12px 12px;
  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;
}

textarea.text-output {
  min-height: 220px;
  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-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;
}

/* ==========================================================================
   Narrow screens (tablet/phone) — every rule here exists because of a
   specific real-device bug found (and fixed) on an earlier sibling site;
   see docs/BUILD_PLAN.md §6 for the full list this section implements.
   ========================================================================== */

@media (max-width: 760px) {
  .tool-card {
    padding: 14px;
  }

  .dropzone {
    padding: 30px 14px;
  }

  /* iOS Safari auto-zooms the page in when a focused input's font-size is
     under 16px — every text input/select gets bumped to the safe minimum. */
  .app-input,
  .app-select,
  input[type="text"],
  input[type="number"],
  input[type="url"] {
    font-size: 16px;
  }

  .about-feature-list {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 576px) {
  .file-row .fr-thumb,
  .img-chip canvas {
    width: 40px;
    height: 40px;
  }
}