:root {
  --bg: #e8eaee;
  --panel: #f7f8fa;
  --panel-strong: #ffffff;
  --panel-border: #d9dde3;
  --surface: #ffffff;
  --surface2: #eff1f4;
  --border: #d9dde3;
  --text: #1f2937;
  --text2: #64748b;
  --muted: #8a94a6;
  --accent: #2f6fe4;
  --accent2: #2563eb;
  --blue: #93b4f2;
  --success: #10b981;
  --warn: #f59e0b;
  --danger: #ef4444;
  --radius: 8px;
  --shadow: 0 4px 12px rgba(60, 75, 110, 0.1);
  --glass-blur: none;
  --font-sans: Inter, ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

html {
  min-height: 100%;
  background: var(--bg);
}

body {
  min-height: 100vh;
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 13px;
}

#header {
  min-height: 52px;
  padding: 8px 16px;
  gap: 12px;
  background: #fff;
  border-bottom: 1px solid var(--border);
  box-shadow: 0 1px 2px rgba(60, 75, 110, 0.06);
}

#header h1 {
  color: var(--text);
  font-size: 20px;
  font-weight: 750;
  letter-spacing: -0.025em;
}

#header h1 > span:first-child {
  color: var(--accent);
}

#header h1 > span:last-child {
  color: var(--text2) !important;
  font-size: 12px !important;
  font-weight: 500 !important;
}

#header-actions,
#header-controls {
  gap: 6px !important;
}

.btn,
#load-more-btn,
#show-all-btn,
#export-btn,
#batch-download-btn,
.glyph-context-action {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 30px;
  padding: 0 11px;
  border: 1px solid var(--border);
  border-radius: 7px;
  background: #fff;
  box-shadow: none;
  color: var(--text2);
  font: 600 12px/1 var(--font-sans);
  text-transform: none;
  letter-spacing: 0;
  text-decoration: none;
  cursor: pointer;
  transition: background-color .15s, border-color .15s, color .15s, box-shadow .15s;
}

.btn:hover,
#load-more-btn:hover,
#show-all-btn:hover,
.glyph-context-action:hover {
  background: #f1f3f6;
  border-color: #c9ced7;
  color: var(--text);
  transform: none;
}

.btn:focus-visible,
button:focus-visible,
select:focus-visible,
input:focus-visible,
textarea:focus-visible {
  outline: 2px solid rgba(47, 111, 228, .28);
  outline-offset: 1px;
}

.btn.success,
.btn.primary,
#export-btn,
#batch-download-btn {
  border-color: var(--accent);
  background: var(--accent);
  color: #fff;
}

.btn.success:hover,
.btn.primary:hover,
#export-btn:hover,
#batch-download-btn:hover {
  border-color: var(--accent2);
  background: var(--accent2);
  color: #fff;
}

#drop-zone {
  width: min(620px, calc(100% - 32px));
  max-width: 620px;
  min-height: 300px;
  margin: 64px auto;
  padding: 44px 36px;
  gap: 10px;
  border: 1px dashed #b9c1cd;
  border-radius: 10px;
  background: #fff;
  box-shadow: var(--shadow);
  backdrop-filter: none;
}

#drop-zone:hover,
#drop-zone.drag-over {
  border-color: var(--accent);
  background: #f8faff;
  box-shadow: 0 6px 18px rgba(60, 75, 110, .12);
  transform: none;
}

#drop-zone::before {
  content: "";
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  margin-bottom: 4px;
  border: 1px solid #cdd8ee;
  border-radius: 10px;
  background-color: #f2f6ff;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%232f6fe4' stroke-width='1.8' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M12 16V4'/%3E%3Cpath d='m7.5 8.5 4.5-4.5 4.5 4.5'/%3E%3Cpath d='M5 15v4h14v-4'/%3E%3C/svg%3E");
  background-position: center;
  background-repeat: no-repeat;
  background-size: 24px 24px;
}

#drop-zone h2 {
  color: var(--text);
  font-size: 18px;
  font-weight: 700;
}

#drop-zone p {
  color: var(--text2);
}

#drop-zone p[style*="font-weight"] {
  color: var(--text2) !important;
  font-weight: 500 !important;
}

.ext-badges {
  margin-top: 8px;
}

.badge {
  padding: 4px 7px;
  border: 1px solid var(--border);
  border-radius: 5px;
  background: #f6f7f9;
  color: var(--text2);
  font: 600 10px/1 var(--font-mono);
  box-shadow: none;
}

.card,
#batch-panel,
#font-info,
#font-preview-panel,
#controls,
#stats-bar,
#export-panel {
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--panel-strong);
  box-shadow: 0 1px 2px rgba(60, 75, 110, .07);
  backdrop-filter: none;
}

#batch-panel {
  width: min(720px, calc(100% - 32px));
  max-width: 720px;
  margin: 40px auto;
  padding: 24px;
}

#batch-panel h2,
#font-preview-panel h3 {
  color: var(--text);
  font-size: 15px;
  font-weight: 700;
}

.batch-info,
.progress-text {
  color: var(--text2);
}

.batch-format-selector,
.batch-output-selector,
.batch-buttons {
  gap: 8px;
}

.batch-format-selector select,
#save-as,
#search-box,
textarea,
input[type="search"] {
  min-height: 32px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: #fff;
  box-shadow: inset 0 1px 1px rgba(15, 23, 42, .025);
  color: var(--text);
  font-family: var(--font-sans);
}

.batch-format-selector select,
#save-as {
  appearance: none;
  padding-left: 10px;
  padding-right: 34px;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20' fill='none' stroke='%2364748b' stroke-width='1.7' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m6 8 4 4 4-4'/%3E%3C/svg%3E");
  background-position: right 9px center;
  background-repeat: no-repeat;
  background-size: 16px 16px;
}

.batch-format-selector select:hover,
#save-as:hover,
#search-box:hover,
textarea:hover {
  border-color: #c5cbd5;
}

.progress-bar,
#progress-bar {
  overflow: hidden;
  border: 0;
  border-radius: 999px;
  background: #e8ebf0;
}

.progress-fill,
#progress-fill {
  background: var(--accent);
}

.batch-result-item {
  border: 1px solid var(--border-soft, #e7eaef);
  border-left-width: 3px;
  border-radius: 5px;
  background: #fafbfc;
}

.batch-result-item.success { border-left-color: var(--success); }
.batch-result-item.error { border-left-color: var(--danger); }

#font-info,
#font-preview-panel,
#controls,
#stats-bar,
#glyph-grid,
#export-panel,
#load-more-container {
  width: min(1180px, calc(100% - 32px));
  max-width: 1180px;
  margin-left: auto;
  margin-right: auto;
}

#font-info {
  margin-top: 24px;
}

.font-meta,
#font-preview-panel,
#controls,
#export-panel {
  padding: 16px;
}

.font-meta h2,
#fi-family {
  color: var(--text);
  font-size: 18px;
}

.meta-item {
  border: 1px solid var(--border-soft, #e7eaef);
  border-radius: 6px;
  background: #f8f9fb;
}

.meta-item .label,
#export-summary,
#rebuild-note {
  color: var(--text2);
}

#font-preview-text {
  border-color: var(--border);
  border-radius: 6px;
  background: #fff;
  color: var(--text);
}

#controls,
#stats-bar,
#export-panel {
  margin-top: 10px;
}

.mode-toggle {
  border: 1px solid var(--border);
  border-radius: 7px;
  background: #f2f4f7;
}

.mode-toggle .btn {
  border: 0;
  background: transparent;
}

.mode-toggle .btn.active {
  background: #fff;
  color: var(--accent);
  box-shadow: 0 1px 3px rgba(60, 75, 110, .12);
}

.sep {
  background: var(--border);
}

#glyph-grid {
  gap: 8px;
  padding-top: 12px;
  padding-bottom: 12px;
}

.glyph-card {
  border: 1px solid var(--border);
  border-radius: 7px;
  background: #fff;
  box-shadow: none;
}

.glyph-card:hover {
  border-color: #aebed8;
  box-shadow: 0 3px 8px rgba(60, 75, 110, .09);
  transform: none;
}

.glyph-card.selected {
  border-color: var(--accent);
  background: #f4f7ff;
  box-shadow: 0 0 0 1px rgba(47, 111, 228, .12);
}

.glyph-name,
.glyph-code {
  color: var(--text2);
  font-family: var(--font-mono);
}

#export-panel {
  border-top: 1px solid var(--border);
  background: #fff;
  box-shadow: 0 -2px 10px rgba(60, 75, 110, .06);
}

#export-btn,
#batch-download-btn {
  min-height: 36px;
  padding: 0 18px;
  border-radius: 7px;
  box-shadow: none !important;
}

#glyph-context-menu {
  border: 1px solid var(--border);
  border-radius: 9px;
  background: #fff;
  box-shadow: 0 12px 32px rgba(30, 41, 59, .18);
}

#loading-overlay {
  background: rgba(232, 234, 238, .88);
  backdrop-filter: blur(2px);
}

.loading-spinner {
  border-color: #d5dbe5;
  border-top-color: var(--accent);
}

#error-toast {
  border: 1px solid #dc2626;
  border-radius: 7px;
  background: #b91c1c;
  box-shadow: 0 8px 22px rgba(127, 29, 29, .2);
}

#footer {
  min-height: 58px;
  margin-top: auto;
  padding: 10px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  border-top: 1px solid var(--border);
  background: #fff;
  color: var(--text2);
  font-size: 13px;
}

.tool-footer-links {
  display: flex;
  align-items: center;
  gap: 16px;
}

.tool-footer-links a {
  color: var(--accent);
  text-decoration: none;
}

.keypdf-footer-brand {
  font-weight: 700;
  font-size: 15px;
  color: var(--text);
}

.keypdf-footer-brand a {
  color: #3569d4;
}

.footer-social-link {
  font-weight: 700;
  font-size: 13px;
  padding: 6px 10px;
  border: 1px solid #c8d7fb;
  border-radius: 7px;
  background: #f5f8ff;
}

.tool-footer-links a:hover {
  text-decoration: underline;
}

.scroll-top-btn {
  border: 1px solid var(--border);
  border-radius: 7px;
  background: #fff;
  color: var(--text2);
  box-shadow: var(--shadow);
}

@media (max-width: 720px) {
  #header {
    position: static;
    padding: 9px 12px;
  }

  #header h1 > span:last-child {
    display: none;
  }

  #header-actions {
    width: 100%;
    margin-left: 0;
  }

  #drop-zone {
    width: calc(100% - 24px);
    min-height: 260px;
    margin: 24px auto;
    padding: 32px 18px;
  }

  #footer {
    flex-wrap: wrap;
    padding: 10px 12px;
  }

  #batch-panel,
  #font-info,
  #font-preview-panel,
  #controls,
  #stats-bar,
  #glyph-grid,
  #export-panel,
  #load-more-container {
    width: calc(100% - 24px);
  }
}