/* ══════════════════════════════════════════════════════════════
   PicDriver - EXIF & Photo Metadata Tools (24-in-1 Suite) CSS
══════════════════════════════════════════════════════════════ */

:root {
  --bg-base:        #0d0f14;
  --bg-card:        #13161e;
  --bg-card2:       #191c27;
  --bg-hover:       #1e2230;
  --border:         #252a3a;
  --border-light:   #2e3347;
  --accent:         #00c7a8;
  --accent-dim:     rgba(0,199,168,.12);
  --accent-glow:    rgba(0,199,168,.3);
  --accent2:        #4f8ef7;
  --accent2-dim:    rgba(79,142,247,.12);
  --accent2-glow:   rgba(79,142,247,.3);
  --purple:         #a855f7;
  --purple-dim:     rgba(168,85,247,.15);
  --red:            #ff5b70;
  --red-dim:        rgba(255,91,112,.12);
  --yellow:         #f5c842;
  --yellow-dim:     rgba(245,200,66,.12);
  --green:          #10b981;
  --green-dim:      rgba(16,185,129,.12);
  --text-primary:   #e8eaf0;
  --text-secondary: #8890a6;
  --text-muted:     #525b72;
  --radius:         12px;
  --radius-sm:      8px;
  --radius-lg:      18px;
  --shadow:         0 4px 24px rgba(0,0,0,.5);
  --shadow-lg:      0 12px 48px rgba(0,0,0,.7);
  --font-body:      'DM Sans', sans-serif;
  --font-mono:      'Space Mono', monospace;
  --transition:     0.22s cubic-bezier(.4,0,.2,1);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
  scroll-behavior: smooth;
  color-scheme: dark;
}

body {
  background: var(--bg-base);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* ── Top Header Bar ── */
.site-header {
  background: rgba(13,15,20,.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-inner {
  max-width: 1240px;
  margin: 0 auto;
  padding: 14px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--text-primary);
  font-weight: 700;
  font-size: 19px;
  letter-spacing: -.01em;
}

.logo-icon {
  width: 32px;
  height: 32px;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
}

.logo-badge {
  font-size: 11px;
  font-weight: 700;
  padding: 3px 8px;
  border-radius: 6px;
  background: var(--accent-dim);
  color: var(--accent);
  border: 1px solid rgba(0,199,168,.3);
  text-transform: uppercase;
  letter-spacing: .05em;
}

.header-right {
  display: flex;
  align-items: center;
  gap: 12px;
}

.privacy-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(16,185,129,.1);
  border: 1px solid rgba(16,185,129,.25);
  color: #34d399;
  font-size: 12px;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: 100px;
}

/* ── Page Layout ── */
.page-wrapper {
  max-width: 1240px;
  margin: 0 auto;
  padding: 24px 20px 80px;
  flex: 1;
  width: 100%;
}

.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12.5px;
  color: var(--text-muted);
  margin-bottom: 20px;
}

.breadcrumb a {
  color: var(--text-secondary);
  text-decoration: none;
  transition: color var(--transition);
}

.breadcrumb a:hover { color: var(--accent); }

/* ── Hero ── */
.hero {
  text-align: center;
  padding: 36px 0 28px;
  position: relative;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--accent-dim);
  border: 1px solid rgba(0,199,168,.25);
  border-radius: 100px;
  padding: 5px 14px;
  font-size: 12px;
  font-weight: 600;
  color: var(--accent);
  letter-spacing: .04em;
  text-transform: uppercase;
  margin-bottom: 16px;
}

.hero h1 {
  font-size: clamp(26px, 4.5vw, 44px);
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -.02em;
  color: var(--text-primary);
  margin-bottom: 12px;
}

.hero h1 span {
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent2) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero p {
  font-size: 15.5px;
  color: var(--text-secondary);
  max-width: 680px;
  margin: 0 auto 20px;
  line-height: 1.65;
}

/* ── 24 Quick-Switch Tool Chips ── */
.tools-chips-container {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 16px 20px;
  margin-bottom: 28px;
  box-shadow: var(--shadow);
}

.tools-chips-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
  flex-wrap: wrap;
  gap: 10px;
}

.tools-chips-title {
  font-size: 11.5px;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: .08em;
  text-transform: uppercase;
  display: flex;
  align-items: center;
  gap: 6px;
}

.tools-chips-counter {
  font-size: 11px;
  color: var(--text-muted);
  font-family: var(--font-mono);
}

.tools-chips-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.tool-chip {
  background: var(--bg-card2);
  color: var(--text-secondary);
  border: 1px solid var(--border);
  border-radius: 100px;
  padding: 6px 14px;
  font-size: 12px;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition);
  white-space: nowrap;
  display: inline-flex;
  align-items: center;
  gap: 5px;
  text-decoration: none;
}

.tool-chip:hover {
  background: var(--bg-hover);
  border-color: var(--accent);
  color: var(--text-primary);
  transform: translateY(-1px);
}

.tool-chip.active {
  background: linear-gradient(135deg, var(--accent) 0%, #009d85 100%);
  color: #0d0f14;
  border-color: var(--accent);
  font-weight: 700;
  box-shadow: 0 2px 10px var(--accent-glow);
}

.tool-chip.fire {
  border-color: rgba(255,91,112,.3);
}

.tool-chip.fire.active {
  background: linear-gradient(135deg, #ff5b70 0%, #d93d52 100%);
  color: #fff;
  border-color: #ff5b70;
  box-shadow: 0 2px 10px rgba(255,91,112,.35);
}

/* ── Suite Main Navigation Tabs ── */
.suite-mode-nav {
  display: flex;
  gap: 10px;
  margin-bottom: 24px;
  overflow-x: auto;
  padding-bottom: 4px;
  scrollbar-width: none;
}

.suite-mode-nav::-webkit-scrollbar { display: none; }

.mode-tab-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  color: var(--text-secondary);
  padding: 10px 20px;
  border-radius: var(--radius);
  font-size: 13.5px;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition);
  white-space: nowrap;
}

.mode-tab-btn:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
}

.mode-tab-btn.active {
  background: var(--bg-card2);
  border-color: var(--accent);
  color: var(--accent);
  box-shadow: 0 0 16px var(--accent-dim);
}

/* ── Mode Panels ── */
.mode-panel { display: none; }
.mode-panel.active { display: block; animation: fadeIn .3s ease; }

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ── Drop Zones ── */
.drop-zone {
  position: relative;
  border: 2px dashed var(--border-light);
  border-radius: var(--radius);
  background: var(--bg-card);
  padding: 50px 24px;
  text-align: center;
  cursor: pointer;
  transition: all var(--transition);
  overflow: hidden;
  margin-bottom: 24px;
}

.drop-zone::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 80% 60% at 50% 120%, rgba(0,199,168,.06), transparent);
  pointer-events: none;
}

.drop-zone:hover, .drop-zone.drag-over {
  border-color: var(--accent);
  background: var(--bg-card2);
  transform: translateY(-2px);
  box-shadow: 0 8px 30px var(--accent-dim);
}

.drop-zone.drag-over { background: rgba(0,199,168,.08); }

.drop-icon {
  width: 60px;
  height: 60px;
  margin: 0 auto 16px;
  background: var(--accent-dim);
  border: 1px solid rgba(0,199,168,.25);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
}

.drop-title {
  font-size: 17px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 6px;
}

.drop-sub {
  font-size: 13.5px;
  color: var(--text-secondary);
  margin-bottom: 16px;
}

.btn-browse {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: linear-gradient(135deg, var(--accent) 0%, #00a48b 100%);
  color: #0d0f14;
  font-weight: 700;
  font-size: 13px;
  padding: 9px 20px;
  border-radius: var(--radius-sm);
  border: none;
  cursor: pointer;
  transition: all var(--transition);
}

.btn-browse:hover {
  filter: brightness(1.1);
  transform: translateY(-1px);
  box-shadow: 0 4px 16px var(--accent-glow);
}

.drop-formats {
  margin-top: 14px;
  font-size: 11.5px;
  color: var(--text-muted);
  font-family: var(--font-mono);
}

/* ── Loading Spinner ── */
.loading-box {
  display: none;
  text-align: center;
  padding: 60px 20px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 24px;
}

.spinner {
  width: 44px;
  height: 44px;
  border: 3px solid var(--border-light);
  border-top-color: var(--accent);
  border-radius: 50%;
  margin: 0 auto 16px;
  animation: spin .8s linear infinite;
}

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

/* ── Results Container ── */
.results-container {
  display: none;
  animation: fadeIn .4s ease;
}

/* ── Active File Action Bar ── */
.active-file-bar {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 14px;
  margin-bottom: 20px;
}

.file-info-group {
  display: flex;
  align-items: center;
  gap: 12px;
}

.file-thumb {
  width: 44px;
  height: 44px;
  border-radius: 8px;
  object-fit: cover;
  border: 1px solid var(--border);
}

.file-name {
  font-weight: 700;
  font-size: 14.5px;
  color: var(--text-primary);
  max-width: 320px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.file-details {
  font-size: 12px;
  color: var(--text-secondary);
}

.action-buttons-group {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.btn-action {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--bg-card2);
  border: 1px solid var(--border-light);
  color: var(--text-primary);
  font-size: 12.5px;
  font-weight: 600;
  padding: 7px 14px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition);
  text-decoration: none;
}

.btn-action:hover {
  background: var(--bg-hover);
  border-color: var(--accent);
  color: var(--accent);
}

.btn-action.btn-danger {
  border-color: rgba(255,91,112,.3);
  color: #ff5b70;
}

.btn-action.btn-danger:hover {
  background: var(--red-dim);
  border-color: var(--red);
}

.btn-action.btn-primary {
  background: var(--accent);
  color: #0d0f14;
  border-color: var(--accent);
  font-weight: 700;
}

.btn-action.btn-primary:hover {
  filter: brightness(1.1);
  box-shadow: 0 4px 14px var(--accent-glow);
  color: #0d0f14;
}

/* ── 10 Spotlight Finder Cards ── */
.finders-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(210px, 1fr));
  gap: 12px;
  margin-bottom: 24px;
}

.finder-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px;
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}

.finder-card:hover {
  border-color: var(--border-light);
  transform: translateY(-2px);
  box-shadow: 0 4px 16px rgba(0,0,0,.3);
}

.finder-card.highlighted {
  border-color: var(--accent);
  box-shadow: 0 0 16px var(--accent-dim);
  background: var(--bg-card2);
}

.finder-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 6px;
}

.finder-label {
  font-size: 11px;
  font-weight: 700;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: .06em;
}

.finder-icon {
  font-size: 14px;
}

.finder-val {
  font-size: 15px;
  font-weight: 700;
  color: var(--text-primary);
  font-family: var(--font-mono);
  word-break: break-word;
}

.finder-sub {
  font-size: 11px;
  color: var(--text-muted);
  margin-top: 3px;
}

/* ── Main Results Grid (Preview + Deep Dive Tabs) ── */
.results-grid {
  display: grid;
  grid-template-columns: 310px 1fr;
  gap: 20px;
  align-items: start;
}

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

.preview-sidebar {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.preview-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
}

.preview-img-wrap {
  width: 100%;
  max-height: 280px;
  background: #080a0f;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  position: relative;
}

.preview-img {
  max-width: 100%;
  max-height: 280px;
  object-fit: contain;
  display: block;
}

.preview-stats-list {
  padding: 14px 16px;
  border-top: 1px solid var(--border);
}

.preview-stat-row {
  display: flex;
  justify-content: space-between;
  padding: 6px 0;
  font-size: 12.5px;
  border-bottom: 1px solid var(--border);
}

.preview-stat-row:last-child { border-bottom: none; }
.preview-stat-label { color: var(--text-secondary); }
.preview-stat-value { font-family: var(--font-mono); color: var(--text-primary); font-weight: 600; }

/* ── Deep Dive Category Tabs Inside Viewer ── */
.subtabs-wrap {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
}

.subtabs-nav {
  display: flex;
  overflow-x: auto;
  border-bottom: 1px solid var(--border);
  scrollbar-width: none;
  background: var(--bg-card2);
}

.subtabs-nav::-webkit-scrollbar { display: none; }

.subtab-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 12px 16px;
  border: none;
  background: transparent;
  color: var(--text-muted);
  font-size: 12.5px;
  font-weight: 600;
  cursor: pointer;
  white-space: nowrap;
  border-bottom: 2px solid transparent;
  transition: all var(--transition);
  flex-shrink: 0;
}

.subtab-btn:hover { color: var(--text-primary); background: var(--bg-hover); }

.subtab-btn.active {
  color: var(--accent);
  border-bottom-color: var(--accent);
  background: var(--accent-dim);
}

.subtab-count {
  background: var(--bg-base);
  border-radius: 100px;
  padding: 1px 6px;
  font-size: 10px;
  font-weight: 700;
  color: var(--text-muted);
}

.subtab-btn.active .subtab-count {
  background: rgba(0,199,168,.25);
  color: var(--accent);
}

.subtab-panel { display: none; padding: 20px; }
.subtab-panel.active { display: block; }

/* ── Meta Table ── */
.meta-group { margin-bottom: 24px; }
.meta-group:last-child { margin-bottom: 0; }

.meta-group-title {
  font-size: 11px;
  font-weight: 700;
  color: var(--text-muted);
  letter-spacing: .1em;
  text-transform: uppercase;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 12px;
}

.meta-table { width: 100%; border-collapse: collapse; }
.meta-table tr:hover td { background: var(--bg-hover); }

.meta-table td {
  padding: 8px 10px;
  font-size: 13px;
  border-bottom: 1px solid var(--border);
  vertical-align: top;
}

.meta-table tr:last-child td { border-bottom: none; }
.meta-table .key { color: var(--text-secondary); font-weight: 500; width: 42%; min-width: 140px; }
.meta-table .val { color: var(--text-primary); font-family: var(--font-mono); font-size: 12px; word-break: break-all; }

/* ── GPS Map & Coordinates ── */
.gps-coords-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-bottom: 16px;
}

.coord-card {
  background: var(--bg-card2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 10px 14px;
}

.coord-label { font-size: 11px; color: var(--text-muted); text-transform: uppercase; font-weight: 700; }
.coord-val { font-size: 15px; font-weight: 700; color: var(--accent); font-family: var(--font-mono); }

.map-frame {
  width: 100%;
  height: 280px;
  border-radius: var(--radius-sm);
  overflow: hidden;
  border: 1px solid var(--border);
  margin-bottom: 18px;
}

.map-frame iframe { width: 100%; height: 100%; border: none; }

.gps-external-links {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 20px;
}

/* ── Remover & Sanitizer Panel ── */
.remover-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  margin-bottom: 24px;
}

.remover-options-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 16px;
  margin: 20px 0;
}

.remover-option {
  background: var(--bg-card2);
  border: 1.5px solid var(--border);
  border-radius: var(--radius);
  padding: 18px;
  cursor: pointer;
  transition: all var(--transition);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.remover-option:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
}

.remover-option.selected {
  border-color: var(--accent);
  background: rgba(0,199,168,.05);
  box-shadow: 0 0 16px var(--accent-dim);
}

.remover-option-title {
  font-size: 15px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 6px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.remover-option-desc {
  font-size: 12.5px;
  color: var(--text-secondary);
  line-height: 1.5;
  margin-bottom: 14px;
}

.remover-badge {
  font-size: 11px;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: 4px;
  align-self: flex-start;
}

.badge-green { background: var(--green-dim); color: var(--green); border: 1px solid rgba(16,185,129,.3); }
.badge-yellow { background: var(--yellow-dim); color: var(--yellow); border: 1px solid rgba(245,200,66,.3); }
.badge-red { background: var(--red-dim); color: var(--red); border: 1px solid rgba(255,91,112,.3); }

/* ── Editor Panel ── */
.editor-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  margin-bottom: 24px;
}

.editor-form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin: 20px 0;
}

@media (max-width: 768px) {
  .editor-form-grid { grid-template-columns: 1fr; }
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form-label {
  font-size: 12px;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: .04em;
}

.form-input {
  background: var(--bg-card2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 10px 14px;
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 13.5px;
  transition: border-color var(--transition);
}

.form-input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 10px var(--accent-dim);
}

/* ── Comparison Panel ── */
.compare-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-bottom: 24px;
}

@media (max-width: 768px) {
  .compare-grid { grid-template-columns: 1fr; }
}

.compare-drop-zone {
  border: 2px dashed var(--border-light);
  border-radius: var(--radius);
  background: var(--bg-card);
  padding: 30px 16px;
  text-align: center;
  cursor: pointer;
  transition: all var(--transition);
}

.compare-drop-zone:hover { border-color: var(--accent); background: var(--bg-card2); }

.diff-table-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}

.diff-table { width: 100%; border-collapse: collapse; font-size: 13px; }
.diff-table th { background: var(--bg-card2); padding: 10px 14px; text-align: left; font-weight: 600; border-bottom: 1px solid var(--border); }
.diff-table td { padding: 9px 14px; border-bottom: 1px solid var(--border); vertical-align: top; }
.diff-table tr.different td { background: rgba(255,91,112,.08); }
.diff-table tr.different td:first-child { color: var(--red); font-weight: 700; }

/* ── Batch Cleaner Panel ── */
.batch-list-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  margin-top: 20px;
}

.batch-queue-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 14px;
  background: var(--bg-card2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  margin-bottom: 8px;
  gap: 12px;
}

.batch-queue-name {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-primary);
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.batch-queue-status {
  font-size: 11.5px;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: 4px;
}

/* ── SEO Section ── */
.seo-section {
  margin: 50px 0 30px;
  border-top: 1px solid var(--border);
  padding-top: 40px;
}

.seo-section h2 {
  font-size: 26px;
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 16px;
  line-height: 1.3;
}

.seo-section h3 {
  font-size: 18px;
  font-weight: 700;
  color: var(--text-primary);
  margin: 28px 0 12px;
}

.seo-section p {
  color: var(--text-secondary);
  font-size: 15px;
  line-height: 1.7;
  margin-bottom: 16px;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 16px;
  margin: 24px 0;
}

.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
}

.feature-card-icon {
  width: 38px;
  height: 38px;
  background: var(--accent-dim);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  margin-bottom: 12px;
  font-size: 18px;
}

.feature-card h4 { font-size: 15px; font-weight: 700; color: var(--text-primary); margin-bottom: 6px; }
.feature-card p { font-size: 13px; color: var(--text-secondary); line-height: 1.5; margin: 0; }

/* ── FAQ Accordion ── */
.faq-list { margin-top: 20px; }

.faq-item {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg-card);
  margin-bottom: 10px;
  overflow: hidden;
  transition: border-color var(--transition);
}

.faq-item:hover { border-color: var(--border-light); }

.faq-q {
  width: 100%;
  text-align: left;
  background: transparent;
  border: none;
  padding: 16px 20px;
  color: var(--text-primary);
  font-size: 15px;
  font-weight: 600;
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
  gap: 12px;
}

.faq-q svg {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
  transition: transform var(--transition);
  color: var(--text-muted);
}

.faq-item.open .faq-q svg { transform: rotate(45deg); color: var(--accent); }

.faq-a {
  display: none;
  padding: 0 20px 18px;
  color: var(--text-secondary);
  font-size: 14.5px;
  line-height: 1.65;
}

.faq-item.open .faq-a { display: block; }

/* ── Toast ── */
.toast {
  position: fixed;
  bottom: 24px;
  right: 24px;
  background: var(--bg-card2);
  border: 1px solid var(--accent);
  color: var(--text-primary);
  padding: 12px 20px;
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 13.5px;
  font-weight: 600;
  box-shadow: 0 8px 32px rgba(0,0,0,.6);
  z-index: 9999;
  opacity: 0;
  transform: translateY(12px);
  pointer-events: none;
  transition: all .25s ease;
}

.toast.show {
  opacity: 1;
  transform: translateY(0);
}


/* ==========================================================================
   Universal Mobile & Tablet Responsiveness Suite (320px - 1040px)
   ========================================================================== */

/* 1. Fluid Media & Canvas Scaling */
img, canvas, svg, video {
  max-width: 100% !important;
  height: auto !important;
}

/* 2. Responsive Touch-Scroll Tables */
table {
  width: 100%;
  max-width: 100%;
  border-collapse: collapse;
}

.table-responsive,
.table-container,
.table-wrap,
.table-wrapper,
.matrix-container,
.data-table-wrap {
  width: 100%;
  max-width: 100%;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

/* 3. Tablet Breakpoint (<= 1040px) */
@media (max-width: 1040px) {
  .workspace,
  .studio-layout,
  .finder-workspace,
  .simulator-grid,
  .layout-grid,
  .remover-workspace {
    grid-template-columns: 1fr !important;
    gap: 20px !important;
  }

  .sidebar-panel,
  .controls-sidebar {
    border-left: none !important;
    border-top: 1px solid var(--border, rgba(255,255,255,0.1));
  }
}

/* 4. Mobile Portrait & Landscape (<= 768px) */
@media (max-width: 768px) {
  .site-header {
    height: auto !important;
    padding: 10px 16px !important;
  }

  .header-inner,
  .header-container {
    flex-wrap: wrap;
    gap: 10px;
    justify-content: space-between;
    width: 100%;
  }

  .logo,
  .brand-logo,
  .logo-wrap {
    font-size: 1.15rem !important;
  }

  .menu-toggle {
    display: block !important;
  }

  .nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    background: #0a0d14;
    flex-direction: column;
    padding: 1rem 1.25rem;
    border-bottom: 1px solid var(--border, rgba(255,255,255,0.1));
    z-index: 1000;
  }

  .nav-links.open {
    display: flex !important;
  }

  .hero {
    padding: 28px 16px 20px !important;
  }

  .hero h1 {
    font-size: clamp(1.6rem, 5.5vw, 2.3rem) !important;
    line-height: 1.2 !important;
  }

  .hero p {
    font-size: 0.92rem !important;
  }

  .page-wrapper,
  .portal-main,
  .container {
    padding: 16px 12px 40px !important;
  }

  .workspace,
  .studio-layout,
  .finder-workspace,
  .remover-workspace {
    padding: 0 !important;
    gap: 16px !important;
  }

  .panel-card,
  .results-card,
  .sidebar-panel,
  .stage-area,
  .card {
    padding: 16px 14px !important;
    border-radius: 12px !important;
  }

  .metrics-grid,
  .data-grid,
  .grid-2,
  .grid-3,
  .grid-4,
  .calc-grid,
  .features-grid,
  .steps-grid {
    grid-template-columns: 1fr !important;
    gap: 12px !important;
  }

  .tool-chips-grid,
  .chips-bar,
  .preset-chip-group,
  .mode-tabs {
    flex-wrap: wrap !important;
    gap: 6px !important;
  }

  .tool-chip,
  .preset-btn,
  .mode-tab-btn {
    padding: 6px 12px !important;
    font-size: 0.78rem !important;
  }

  .btn-primary,
  .btn-secondary,
  .action-btn,
  .btn-action {
    min-height: 44px;
    width: 100%;
    justify-content: center;
  }

  .btn-group,
  .action-btns,
  .download-row {
    flex-direction: column !important;
    width: 100% !important;
    gap: 8px !important;
  }

  table {
    display: block !important;
    width: 100% !important;
    overflow-x: auto !important;
    -webkit-overflow-scrolling: touch !important;
    white-space: nowrap !important;
  }

  th, td {
    padding: 8px 10px !important;
    font-size: 0.8rem !important;
  }
}

/* 5. Small Handsets (<= 480px) */
@media (max-width: 480px) {
  .hero-pill,
  .hero-badge {
    font-size: 0.72rem !important;
    padding: 3px 10px !important;
  }

  .form-group {
    margin-bottom: 14px !important;
  }

  .form-control,
  .form-select,
  .control-input,
  .control-select,
  input[type="text"],
  input[type="number"],
  select {
    font-size: 16px !important; /* Prevents auto-zoom in iOS Safari */
    min-height: 42px;
  }

  .info-section,
  .guide-section,
  .faq-section {
    padding: 24px 12px !important;
  }
}