/* ═══════════════════════════════════════════════════
   Gov Image & PDF Tool — Blog-Modern Design System
   ═══════════════════════════════════════════════════ */

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

/* ── Tokens ── */
:root {
  --primary:       #4f46e5;
  --primary-dark:  #3730a3;
  --primary-light: #eef2ff;
  --primary-glow:  rgba(79,70,229,.18);
  --accent:        #f59e0b;
  --success:       #10b981;
  --error:         #ef4444;
  --warn:          #f59e0b;

  --text:          #0f172a;
  --text-2:        #475569;
  --text-3:        #94a3b8;
  --border:        #e2e8f0;
  --border-focus:  #6366f1;
  --bg-page:       #f1f5f9;
  --bg-card:       #ffffff;
  --bg-input:      #f8fafc;

  --radius-sm:  6px;
  --radius:     12px;
  --radius-lg:  18px;
  --shadow-sm:  0 1px 3px rgba(0,0,0,.08), 0 1px 2px rgba(0,0,0,.05);
  --shadow:     0 4px 16px rgba(0,0,0,.08), 0 1px 4px rgba(0,0,0,.05);
  --shadow-lg:  0 12px 40px rgba(0,0,0,.1), 0 4px 12px rgba(0,0,0,.06);
  --transition: .18s ease;
  --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

html { font-size: 16px; scroll-behavior: smooth; }
body {
  font-family: var(--font);
  color: var(--text);
  background: var(--bg-page);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  -webkit-font-smoothing: antialiased;
}

/* ═══════════════════════════════════════════════════
   HERO
   ═══════════════════════════════════════════════════ */
.hero {
  background: linear-gradient(135deg, #0f0a2e 0%, #1e1b4b 40%, #312e81 75%, #3730a3 100%);
  position: relative;
  overflow: hidden;
  padding: 56px 20px 52px;
  text-align: center;
}
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 60% 50% at 20% 60%, rgba(99,102,241,.25) 0%, transparent 70%),
    radial-gradient(ellipse 50% 60% at 80% 30%, rgba(139,92,246,.2) 0%, transparent 70%);
  pointer-events: none;
}
.hero-inner { position: relative; max-width: 720px; margin: 0 auto; }

.hero-badge {
  display: inline-block;
  background: rgba(255,255,255,.12);
  border: 1px solid rgba(255,255,255,.2);
  color: rgba(255,255,255,.9);
  font-size: .78rem;
  font-weight: 600;
  letter-spacing: .6px;
  text-transform: uppercase;
  padding: 5px 14px;
  border-radius: 20px;
  margin-bottom: 18px;
  backdrop-filter: blur(6px);
}

.hero-title {
  font-size: clamp(1.8rem, 5vw, 3rem);
  font-weight: 800;
  color: #fff;
  letter-spacing: -.5px;
  line-height: 1.15;
  margin-bottom: 14px;
}
.hero-sub {
  font-size: clamp(.9rem, 2.5vw, 1.1rem);
  color: rgba(255,255,255,.72);
  margin-bottom: 32px;
  font-weight: 400;
}

.hero-stats {
  display: inline-flex;
  align-items: center;
  gap: 0;
  background: rgba(255,255,255,.1);
  border: 1px solid rgba(255,255,255,.15);
  border-radius: 14px;
  padding: 12px 24px;
  gap: 20px;
  backdrop-filter: blur(8px);
}
.hero-stat { text-align: center; }
.stat-num { display: block; font-size: 1.4rem; font-weight: 800; color: #fff; line-height: 1; }
.stat-lbl { display: block; font-size: .7rem; color: rgba(255,255,255,.6); font-weight: 500; margin-top: 2px; text-transform: uppercase; letter-spacing: .5px; }
.hero-divider { width: 1px; height: 32px; background: rgba(255,255,255,.2); }

/* ═══════════════════════════════════════════════════
   FORMAT SHOWCASE
   ═══════════════════════════════════════════════════ */
.formats-section {
  background: var(--bg-card);
  border-bottom: 1px solid var(--border);
  padding: 48px 20px;
}
.formats-inner { max-width: 960px; margin: 0 auto; }

.formats-heading {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--text);
  text-align: center;
  margin-bottom: 6px;
}
.formats-sub {
  text-align: center;
  font-size: .9rem;
  color: var(--text-2);
  margin-bottom: 32px;
}

.formats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(210px, 1fr));
  gap: 14px;
}

.fmt-card {
  border: 1px solid var(--border);
  border-top: 3px solid var(--fmt-color, #6366f1);
  border-radius: var(--radius);
  background: var(--bg-card);
  padding: 16px;
  transition: box-shadow var(--transition), transform var(--transition);
  display: flex;
  gap: 12px;
  align-items: flex-start;
}
.fmt-card:hover { box-shadow: var(--shadow); transform: translateY(-2px); }

.fmt-badge {
  font-size: .72rem;
  font-weight: 800;
  letter-spacing: .4px;
  padding: 4px 10px;
  border-radius: 6px;
  white-space: nowrap;
  flex-shrink: 0;
}
.fmt-body { flex: 1; }
.fmt-name { font-size: .83rem; font-weight: 700; color: var(--text); margin-bottom: 2px; }
.fmt-exts { font-size: .73rem; color: var(--text-3); font-family: monospace; margin-bottom: 6px; }
.fmt-desc { font-size: .78rem; color: var(--text-2); line-height: 1.45; margin-bottom: 8px; }

.fmt-support { display: flex; gap: 4px; flex-wrap: wrap; }
.sup-badge {
  font-size: .65rem;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: 4px;
  letter-spacing: .3px;
}
.sup-read   { background: #dbeafe; color: #1d4ed8; }
.sup-write  { background: #dcfce7; color: #15803d; }
.sup-modern { background: #f3e8ff; color: #7c3aed; }
.sup-nowrite { background: #fef9c3; color: #a16207; }

/* ═══════════════════════════════════════════════════
   MAIN APP
   ═══════════════════════════════════════════════════ */
main {
  max-width: 960px;
  margin: 32px auto 40px;
  padding: 0 16px;
  flex: 1;
  width: 100%;
}

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

/* ── Tab Nav ── */
.tab-nav {
  display: flex;
  gap: 0;
  background: var(--bg-page);
  border-bottom: 1px solid var(--border);
  overflow-x: auto;
  scrollbar-width: none;
}
.tab-nav::-webkit-scrollbar { display: none; }

.tab-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 14px 20px;
  border: none;
  background: transparent;
  color: var(--text-2);
  font-family: var(--font);
  font-size: .875rem;
  font-weight: 500;
  cursor: pointer;
  white-space: nowrap;
  border-bottom: 2px solid transparent;
  transition: color var(--transition), border-color var(--transition), background var(--transition);
  position: relative;
}
.tab-btn:hover { background: var(--primary-light); color: var(--primary); }
.tab-btn.active {
  color: var(--primary);
  font-weight: 700;
  border-bottom-color: var(--primary);
  background: var(--bg-card);
}
.tab-icon { font-size: 1rem; }

/* ── Panels ── */
.panels-wrap { padding: 28px 28px 32px; }

.tab-panel { display: none; }
.tab-panel.active { display: block; }

.panel-header { margin-bottom: 20px; }
.panel-header h2 {
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--text);
  margin-bottom: 4px;
}
.hint { font-size: .85rem; color: var(--text-2); }

/* ── Upload Zone ── */
.upload-zone {
  border: 2px dashed var(--border);
  border-radius: var(--radius);
  background: var(--bg-input);
  padding: 36px 20px;
  text-align: center;
  cursor: pointer;
  transition: border-color var(--transition), background var(--transition), box-shadow var(--transition);
  margin-bottom: 20px;
  position: relative;
}
.upload-zone:hover,
.upload-zone.drag-over {
  border-color: var(--primary);
  background: var(--primary-light);
  box-shadow: 0 0 0 4px var(--primary-glow);
}
.upload-zone input[type="file"] { display: none; }

.upload-icon { font-size: 2.4rem; display: block; margin-bottom: 10px; }
.upload-main { font-size: .95rem; font-weight: 600; color: var(--text); margin-bottom: 4px; }
.upload-or   { font-size: .85rem; color: var(--text-2); margin-bottom: 6px; }
.upload-formats { font-size: .75rem; color: var(--text-3); letter-spacing: .2px; }

.small-zone { padding: 18px 16px; }
.small-zone .upload-icon { font-size: 1.5rem; margin-bottom: 6px; }

.link { color: var(--primary); text-decoration: underline; cursor: pointer; font-weight: 600; }

/* ── Options Row ── */
.options-row {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 18px;
  align-items: flex-end;
}

.opt-label {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.opt-title {
  font-size: .78rem;
  font-weight: 600;
  color: var(--text-2);
  text-transform: uppercase;
  letter-spacing: .4px;
  display: flex;
  align-items: center;
  gap: 6px;
}

.input-with-unit {
  display: flex;
  align-items: stretch;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  overflow: hidden;
  background: var(--bg-card);
}
.input-with-unit input {
  border: none;
  padding: 7px 10px;
  font-size: .88rem;
  font-family: var(--font);
  background: transparent;
  width: 80px;
  color: var(--text);
  outline: none;
}
.input-with-unit:focus-within { border-color: var(--border-focus); box-shadow: 0 0 0 3px var(--primary-glow); }
.unit {
  background: var(--bg-input);
  border-left: 1px solid var(--border);
  padding: 7px 10px;
  font-size: .78rem;
  color: var(--text-3);
  font-weight: 600;
}

.select-styled {
  padding: 8px 12px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: .88rem;
  font-family: var(--font);
  background: var(--bg-card);
  color: var(--text);
  cursor: pointer;
  min-width: 140px;
  outline: none;
}
.select-styled:focus { border-color: var(--border-focus); box-shadow: 0 0 0 3px var(--primary-glow); }

input[type="range"] {
  -webkit-appearance: none;
  height: 4px;
  background: var(--border);
  border-radius: 2px;
  cursor: pointer;
  width: 160px;
  outline: none;
}
input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 16px; height: 16px;
  border-radius: 50%;
  background: var(--primary);
  box-shadow: 0 1px 4px rgba(79,70,229,.4);
}
input[type="range"]:focus { box-shadow: none; }
.quality-pct { font-weight: 700; color: var(--primary); font-size: .85rem; }

.checkbox-label {
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  font-size: .85rem;
  color: var(--text-2);
  font-weight: 500;
  padding-bottom: 2px;
}
.checkbox-label input[type="checkbox"] {
  width: 16px; height: 16px;
  accent-color: var(--primary);
  cursor: pointer;
}

/* ── Buttons ── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 10px 22px;
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-family: var(--font);
  font-size: .9rem;
  font-weight: 600;
  transition: all var(--transition);
}
.btn:disabled { opacity: .42; cursor: not-allowed; }
.btn:not(:disabled):active { transform: scale(.97); }

.btn-primary {
  background: linear-gradient(135deg, var(--primary), #7c3aed);
  color: #fff;
  box-shadow: 0 2px 8px rgba(79,70,229,.3);
}
.btn-primary:not(:disabled):hover { box-shadow: 0 4px 16px rgba(79,70,229,.45); filter: brightness(1.06); }

.btn-success {
  background: linear-gradient(135deg, var(--success), #059669);
  color: #fff;
  box-shadow: 0 2px 8px rgba(16,185,129,.3);
}
.btn-success:not(:disabled):hover { box-shadow: 0 4px 16px rgba(16,185,129,.4); filter: brightness(1.06); }

.btn-outline {
  background: transparent;
  color: var(--primary);
  border: 1.5px solid var(--primary);
}
.btn-outline:not(:disabled):hover { background: var(--primary-light); }

.btn-ghost {
  background: var(--bg-input);
  color: var(--text-2);
  border: 1px solid var(--border);
}
.btn-ghost:not(:disabled):hover { background: var(--border); color: var(--text); }

.btn-small { padding: 6px 14px; font-size: .8rem; }

/* ── File List ── */
.file-list { margin-bottom: 16px; }
.file-item {
  display: flex;
  align-items: center;
  gap: 10px;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 9px 12px;
  margin-bottom: 6px;
  font-size: .85rem;
  transition: border-color var(--transition);
}
.file-item:hover { border-color: #cbd5e1; }
.file-icon { font-size: 1.2rem; flex-shrink: 0; }
.file-info { flex: 1; overflow: hidden; }
.file-name { font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; color: var(--text); }
.file-meta { color: var(--text-3); font-size: .75rem; margin-top: 1px; }
.file-fmt-badge {
  font-size: .65rem;
  font-weight: 700;
  padding: 1px 7px;
  border-radius: 4px;
  text-transform: uppercase;
  letter-spacing: .3px;
  background: var(--primary-light);
  color: var(--primary);
  flex-shrink: 0;
}
.remove-btn {
  background: none;
  border: none;
  cursor: pointer;
  font-size: 1rem;
  color: var(--text-3);
  padding: 0 4px;
  border-radius: 4px;
  transition: color var(--transition), background var(--transition);
  line-height: 1;
}
.remove-btn:hover { color: var(--error); background: #fee2e2; }

/* ── Results Area ── */
.results-area { margin-top: 16px; }
.result-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  margin-bottom: 14px;
  box-shadow: var(--shadow-sm);
  transition: box-shadow var(--transition);
}
.result-card:hover { box-shadow: var(--shadow); }
.result-card.success { border-left: 4px solid var(--success); }
.result-card.error   { border-left: 4px solid var(--error); }
.result-card.warn    { border-left: 4px solid var(--warn); }

.result-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 10px;
}
.result-header h4 { font-size: .92rem; font-weight: 700; word-break: break-all; color: var(--text); }

.status-badge {
  font-size: .7rem;
  font-weight: 700;
  padding: 3px 10px;
  border-radius: 20px;
  white-space: nowrap;
  letter-spacing: .3px;
}
.badge-success { background: #dcfce7; color: #15803d; }
.badge-error   { background: #fee2e2; color: #b91c1c; }
.badge-warn    { background: #fef9c3; color: #a16207; }

.result-meta { font-size: .8rem; color: var(--text-2); margin-bottom: 8px; display: flex; flex-wrap: wrap; gap: 10px; align-items: center; }

.preview-thumb {
  max-width: 180px;
  max-height: 140px;
  object-fit: contain;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  display: block;
  margin-bottom: 10px;
  background: repeating-conic-gradient(#e2e8f0 0% 25%, #fff 0% 50%) 0 0 / 12px 12px;
}

.size-bar-wrap { margin: 8px 0 10px; }
.size-bar-label { font-size: .78rem; color: var(--text-2); margin-bottom: 4px; }
.size-bar-label strong { color: var(--text); }
.size-bar { height: 6px; background: var(--bg-input); border-radius: 3px; overflow: hidden; border: 1px solid var(--border); }
.size-bar-fill { height: 100%; border-radius: 3px; transition: width .5s ease; }
.fill-ok   { background: linear-gradient(90deg, #10b981, #059669); }
.fill-warn { background: linear-gradient(90deg, #f59e0b, #d97706); }
.fill-bad  { background: linear-gradient(90deg, #ef4444, #dc2626); }

.check-list { list-style: none; font-size: .83rem; margin-bottom: 10px; }
.check-list li { display: flex; align-items: flex-start; gap: 8px; margin-bottom: 6px; line-height: 1.4; }
.icon-pass { color: var(--success); }
.icon-fail { color: var(--error); }
.icon-warn { color: var(--warn); }

.download-row { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 10px; }

/* ── Spinner / Progress ── */
.spinner {
  display: inline-block;
  width: 18px; height: 18px;
  border: 2.5px solid var(--border);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: spin .7s linear infinite;
  vertical-align: middle;
  margin-right: 8px;
  flex-shrink: 0;
}
@keyframes spin { to { transform: rotate(360deg); } }

.processing-msg { display: flex; align-items: center; color: var(--text-2); font-size: .88rem; padding: 12px 0; }

/* ── PDF Tool Tabs ── */
.pdf-tool-tabs {
  display: flex;
  gap: 6px;
  margin-bottom: 22px;
  flex-wrap: wrap;
}
.pdf-tab {
  padding: 8px 16px;
  border: 1.5px solid var(--border);
  background: var(--bg-input);
  color: var(--text-2);
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: .83rem;
  font-weight: 500;
  font-family: var(--font);
  transition: all var(--transition);
}
.pdf-tab:hover { border-color: var(--primary); color: var(--primary); background: var(--primary-light); }
.pdf-tab.active { border-color: var(--primary); color: var(--primary); background: var(--primary-light); font-weight: 700; }
.pdf-panel { display: none; }
.pdf-panel.active { display: block; }

/* ── Creator Two-col ── */
.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px;
}
@media (max-width: 680px) { .two-col { grid-template-columns: 1fr; } }

.section-sub {
  font-size: .9rem;
  font-weight: 700;
  color: var(--text);
  margin: 18px 0 10px;
  padding-bottom: 6px;
  border-bottom: 1px solid var(--border);
}
.section-sub:first-child { margin-top: 0; }

/* ── Preset Grid ── */
.preset-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  margin-bottom: 4px;
}
.preset-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 12px 8px;
  border: 1.5px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg-input);
  cursor: pointer;
  transition: all var(--transition);
  text-align: center;
  gap: 4px;
}
.preset-btn:hover { border-color: var(--primary); background: var(--primary-light); }
.preset-btn.selected { border-color: var(--primary); background: var(--primary-light); box-shadow: 0 0 0 3px var(--primary-glow); }
.preset-icon { font-size: 1.4rem; }
.preset-name { font-size: .8rem; font-weight: 700; color: var(--text); }
.preset-dim  { font-size: .7rem; color: var(--text-3); font-family: monospace; }

/* ── Quick Dim ── */
.dim-quick-wrap {
  display: flex;
  gap: 6px;
  align-items: center;
  margin-bottom: 4px;
}
.dim-quick-input {
  flex: 1;
  padding: 8px 12px;
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: .88rem;
  font-family: monospace;
  background: var(--bg-input);
  color: var(--text);
  outline: none;
  transition: border-color var(--transition), box-shadow var(--transition);
}
.dim-quick-input:focus { border-color: var(--border-focus); box-shadow: 0 0 0 3px var(--primary-glow); }
.dim-quick-hint { font-size: .73rem; color: var(--text-3); }

/* ── Preview wrap ── */
.preview-wrap {
  min-height: 200px;
  background: repeating-conic-gradient(#e2e8f0 0% 25%, #fff 0% 50%) 0 0 / 14px 14px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}
.preview-wrap canvas { max-width: 100%; max-height: 340px; display: none; }
.preview-hint { font-size: .85rem; color: var(--text-3); padding: 24px; text-align: center; }

/* ── Format note ── */
.fmt-note {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  background: #fffbeb;
  border: 1px solid #fde68a;
  border-radius: var(--radius-sm);
  padding: 10px 14px;
  font-size: .82rem;
  color: #92400e;
  margin-bottom: 14px;
}

/* ── Rules table ── */
.rules-details { margin-top: 24px; }
.rules-details summary {
  cursor: pointer;
  font-size: .88rem;
  color: var(--primary);
  font-weight: 600;
  list-style: none;
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 10px 0;
}
.rules-details summary::before { content: '▶'; font-size: .7rem; transition: transform var(--transition); }
.rules-details[open] summary::before { transform: rotate(90deg); }
.rules-table-wrap { overflow-x: auto; border-radius: var(--radius-sm); border: 1px solid var(--border); }
.rules-table {
  width: 100%;
  border-collapse: collapse;
  font-size: .82rem;
}
.rules-table th {
  background: var(--primary);
  color: #fff;
  padding: 9px 12px;
  text-align: left;
  font-weight: 600;
  font-size: .78rem;
  text-transform: uppercase;
  letter-spacing: .4px;
}
.rules-table td { padding: 8px 12px; border-bottom: 1px solid var(--border); color: var(--text-2); }
.rules-table tr:last-child td { border-bottom: none; }
.rules-table tr:nth-child(even) td { background: var(--bg-input); }

/* ═══════════════════════════════════════════════════
   FOOTER
   ═══════════════════════════════════════════════════ */
.site-footer {
  background: #0f172a;
  color: rgba(255,255,255,.6);
  padding: 32px 20px;
  margin-top: auto;
}
.footer-inner { max-width: 960px; margin: 0 auto; text-align: center; }
.footer-logo { font-size: 1rem; font-weight: 700; color: #fff; margin-bottom: 8px; }
.footer-note { font-size: .8rem; margin-bottom: 16px; }
.footer-tags { display: flex; justify-content: center; flex-wrap: wrap; gap: 6px; }
.footer-tags span {
  background: rgba(255,255,255,.08);
  border: 1px solid rgba(255,255,255,.12);
  padding: 3px 10px;
  border-radius: 4px;
  font-size: .72rem;
  font-weight: 600;
  letter-spacing: .3px;
  color: rgba(255,255,255,.7);
}

.footer-nav {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 6px 18px;
  margin-top: 18px;
}
.footer-nav a {
  font-size: .78rem;
  color: rgba(255,255,255,.6);
  text-decoration: none;
  font-weight: 500;
  transition: color var(--transition);
}
.footer-nav a:hover { color: #fff; text-decoration: underline; }

.footer-brand {
  margin-top: 18px;
  padding-top: 16px;
  border-top: 1px solid rgba(255,255,255,.1);
  font-size: .78rem;
  color: rgba(255,255,255,.5);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
}
.footer-brand strong { color: rgba(255,255,255,.8); }
.footer-brand a { color: rgba(255,255,255,.55); text-decoration: none; font-weight: 500; }
.footer-brand a:hover { color: #fff; text-decoration: underline; }

/* ═══════════════════════════════════════════════════
   RESPONSIVE
   ═══════════════════════════════════════════════════ */
@media (max-width: 640px) {
  .hero { padding: 36px 16px 32px; }
  .hero-stats { gap: 12px; padding: 10px 16px; }
  .stat-num { font-size: 1.1rem; }
  main { padding: 0 10px; margin: 16px auto 24px; }
  .panels-wrap { padding: 18px 16px 24px; }
  .tab-btn { padding: 11px 14px; font-size: .8rem; }
  .upload-zone { padding: 24px 14px; }
  .formats-grid { grid-template-columns: repeat(auto-fill, minmax(170px, 1fr)); }
  .preset-grid { grid-template-columns: 1fr 1fr; }
  .options-row { gap: 12px; }
}
@media (max-width: 400px) {
  .hero-stats { flex-direction: column; gap: 8px; }
  .hero-divider { width: 60px; height: 1px; }
}