/* style.css */
:root {
  --bg-color: #f8fafc;
  --text-color: #0f172a;
  --text-muted: #475569;
  --card-bg: #ffffff;
  --card-border: #e2e8f0;
  --accent-color: #2563eb;
  --accent-hover: #1d4ed8;
  --brand-gradient-from: #2563eb;
  --brand-gradient-to: #9333ea;
  --success-color: #10b981;
  --error-color: #ef4444;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: 'Outfit', sans-serif;
}

body {
  background-color: var(--bg-color);
  color: var(--text-color);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  position: relative;
  overflow-x: hidden;
}

/* Background effects hidden in light theme */
.background-effects {
  display: none;
}

#app {
  width: 100%;
  max-width: 800px;
  padding: 0.5rem 2rem 2rem;
  display: flex;
  flex-direction: column;
  gap: 2.25rem;
}

/* Header */
header {
  text-align: center;
  margin-top: 2rem;
}

.logo {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  margin-bottom: 0.5rem;
}

.logo h1 {
  font-size: 2.5rem;
  font-weight: 800;
  background: linear-gradient(to right, var(--brand-gradient-from), var(--brand-gradient-to));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.lightning {
  font-size: 2rem;
}

.subtitle {
  color: var(--text-muted);
  font-size: 1.1rem;
  letter-spacing: 0.3px;
  margin-bottom: 1.5rem;
}

.highlights {
  display: flex;
  justify-content: center;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 1rem;
}

.highlight-badge {
  background: rgba(59, 130, 246, 0.08);
  color: #1d4ed8;
  padding: 0.5rem 1rem;
  border-radius: 9999px;
  font-size: 0.95rem;
  font-weight: 600;
  border: 1px solid rgba(59, 130, 246, 0.25);
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

/* Main Card */
.converter-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 24px;
  padding: 3rem 2rem;
  text-align: center;
  box-shadow: 0 10px 25px -12px rgba(15, 23, 42, 0.1);
  transition: transform 0.3s ease, border-color 0.3s ease;
  position: relative;
  min-height: 350px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
}

.converter-card.dragover {
  border-color: var(--accent-color);
  transform: scale(1.02);
  background: rgba(59, 130, 246, 0.05);
}

.hidden {
  display: none !important;
}

/* Drop Area */
.drop-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
  width: 100%;
}

.icon-group {
  background: rgba(59, 130, 246, 0.1);
  padding: 20px;
  border-radius: 50%;
  margin-bottom: 1rem;
  color: var(--accent-color);
}

.supports-text {
  color: var(--text-muted);
  font-size: 0.9rem;
}

/* Buttons */
.btn {
  padding: 0.75rem 1.5rem;
  border-radius: 9999px;
  border: none;
  font-weight: 600;
  font-size: 1rem;
  cursor: pointer;
  transition: all 0.2s ease;
  text-decoration: none;
  display: inline-block;
}

.browse-btn {
  background: var(--text-color);
  color: #ffffff;
  border: 1px solid var(--text-color);
  margin-top: 1rem;
}

.browse-btn:hover {
  background: #1e293b;
}

.primary-btn {
  background: var(--accent-color);
  color: #ffffff;
}

.primary-btn:hover {
  background: var(--accent-hover);
  transform: translateY(-2px);
}

.secondary-btn {
  background: transparent;
  color: var(--text-muted);
  border: 1px solid var(--card-border);
}

.secondary-btn:hover {
  background: #f1f5f9;
  color: var(--text-color);
}

/* Loading State */
.loading-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.5rem;
}

.spinner {
  width: 50px;
  height: 50px;
  border: 4px solid #e2e8f0;
  border-left-color: var(--accent-color);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

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

/* Success State */
.success-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
}

.success-circle {
  background: rgba(16, 185, 129, 0.12);
  color: var(--success-color);
  padding: 1rem;
  border-radius: 50%;
  margin-bottom: 0.5rem;
}

.actions {
  display: flex;
  gap: 1rem;
  margin-top: 1.5rem;
}

/* Error State */
.error-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.5rem;
}

.error-circle {
  background: rgba(239, 68, 68, 0.12);
  color: var(--error-color);
  padding: 1rem;
  border-radius: 50%;
}

#error-message {
  color: var(--error-color);
}

/* Features Grid */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 2rem;
  margin-top: 2rem;
}

.feature {
  background: var(--card-bg);
  padding: 1.5rem;
  border-radius: 16px;
  border: 1px solid var(--card-border);
}

.feature h3 {
  margin-bottom: 0.5rem;
  color: var(--accent-color);
  font-size: 1.1rem;
}

.feature p {
  color: var(--text-muted);
  font-size: 0.9rem;
  line-height: 1.5;
}

/* Coming-soon category card */
.coming-soon-card {
  border-left: 3px solid var(--accent-color);
  padding-left: 1.5rem;
}

.coming-soon-card h2 {
  color: var(--accent-color);
}

/* Site header */
.site-header {
  width: 100%;
  max-width: 1100px;
  margin: 0 auto;
  padding: 0.85rem 2rem;
  display: flex;
  align-items: center;
  justify-content: flex-start;
  gap: 0.75rem;
}

.site-header .logo {
  margin-bottom: 0;
  text-decoration: none;
  color: var(--text-color);
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.site-header .brand {
  font-size: 1.35rem;
  font-weight: 800;
  background: linear-gradient(to right, var(--brand-gradient-from), var(--brand-gradient-to));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.site-header .lightning {
  font-size: 1.5rem;
}

.site-header--home {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: baseline;
  gap: 0.85rem;
}

.site-header--home .logo {
  justify-self: start;
}

.site-tagline {
  margin: 0;
  justify-self: center;
  text-align: center;
  font-size: 1.6rem;
  font-weight: 800;
  line-height: 1.25;
  background: linear-gradient(to right, var(--brand-gradient-from), var(--brand-gradient-to));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  color: transparent;
}

@media (max-width: 700px) {
  .site-tagline {
    font-size: 1.25rem;
  }
}

@media (max-width: 700px) {
  .site-header--home {
    grid-template-columns: 1fr;
    justify-items: center;
  }
  .site-header--home .logo {
    justify-self: center;
  }
}

.hero--home {
  padding: 0;
}

/* Breadcrumb */
.breadcrumb {
  display: flex;
  gap: 0.5rem;
  align-items: center;
  font-size: 0.9rem;
  color: var(--text-muted);
  flex-wrap: wrap;
}

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

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

.breadcrumb [aria-current="page"] {
  color: var(--text-color);
}

/* Hero */
.hero {
  text-align: center;
  padding: 0 0 0.25rem;
}

.hero h1 {
  font-size: 2.25rem;
  font-weight: 800;
  margin-bottom: 0.75rem;
  background: linear-gradient(to right, var(--brand-gradient-from), var(--brand-gradient-to));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* Content blocks */
.content-block {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 20px;
  padding: 2rem;
  box-shadow: 0 4px 12px -4px rgba(15, 23, 42, 0.06);
}

.content-block h2 {
  font-size: 1.4rem;
  font-weight: 700;
  margin-bottom: 1rem;
  color: var(--text-color);
}

.content-block p {
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 0.75rem;
}

.content-block p:last-child {
  margin-bottom: 0;
}

.content-block a {
  color: var(--accent-color);
  text-decoration: none;
}

.content-block a:hover {
  text-decoration: underline;
}

.use-cases {
  list-style: none;
  display: grid;
  gap: 0.5rem;
}

.use-cases li {
  color: var(--text-muted);
  padding-left: 1.5rem;
  position: relative;
  line-height: 1.5;
}

.use-cases li::before {
  content: "✓";
  color: var(--success-color);
  position: absolute;
  left: 0;
  font-weight: 700;
}

/* Related grid */
.related-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 0.75rem;
}

.related-card {
  background: #f1f5f9;
  border: 1px solid var(--card-border);
  border-radius: 12px;
  padding: 0.85rem 1rem;
  color: var(--text-color) !important;
  text-decoration: none;
  text-align: center;
  font-weight: 600;
  font-size: 0.95rem;
  transition: all 0.2s ease;
}

.related-card:hover {
  background: rgba(59, 130, 246, 0.08);
  border-color: rgba(59, 130, 246, 0.4);
  color: var(--accent-hover) !important;
  transform: translateY(-2px);
  text-decoration: none !important;
}

/* Comparison table */
.comparison-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.95rem;
}

.comparison-table th,
.comparison-table td {
  padding: 0.75rem 1rem;
  text-align: left;
  border-bottom: 1px solid var(--card-border);
  color: var(--text-muted);
}

.comparison-table th {
  color: var(--text-color);
  font-weight: 700;
  background: #f1f5f9;
}

.comparison-table tr:last-child td {
  border-bottom: none;
}

/* FAQ */
.faq-list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.faq-item {
  background: #f8fafc;
  border: 1px solid var(--card-border);
  border-radius: 12px;
  padding: 0.75rem 1rem;
}

.faq-item summary {
  cursor: pointer;
  font-weight: 600;
  color: var(--text-color);
  padding: 0.25rem 0;
  list-style: none;
  position: relative;
  padding-right: 1.5rem;
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-item summary::after {
  content: "+";
  position: absolute;
  right: 0;
  top: 0.25rem;
  color: var(--accent-color);
  font-weight: 700;
  font-size: 1.2rem;
}

.faq-item[open] summary::after {
  content: "−";
}

.faq-item p {
  color: var(--text-muted);
  line-height: 1.6;
  margin-top: 0.5rem;
}

/* Legal pages */
.legal-content {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.legal-content h3 {
  color: var(--text-color);
  font-size: 1.15rem;
  margin-bottom: 0.5rem;
  margin-top: 0.5rem;
}

/* Ad slot — dashed placeholder when empty, fills with AdSense markup when enabled */
.ad-slot {
  width: 100%;
  min-height: 120px;
  border: 1px dashed var(--card-border);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #ffffff;
}

.ad-slot::before {
  content: 'ad slot';
  color: #cbd5e1;
  font-size: 0.75rem;
  letter-spacing: 2px;
  text-transform: uppercase;
}

.ad-slot:has(ins.adsbygoogle)::before {
  display: none;
}

/* Site footer */
.site-footer {
  width: 100%;
  max-width: 1100px;
  margin: 3rem auto 0;
  padding: 2.5rem 2rem 2rem;
  border-top: 1px solid var(--card-border);
}

.footer-cols {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 2rem;
  margin-bottom: 2rem;
}

.footer-col {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.footer-col h4 {
  color: var(--text-color);
  font-size: 0.9rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 0.5rem;
}

.footer-col a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.9rem;
  transition: color 0.2s ease;
}

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

.footer-legal {
  border-top: 1px solid var(--card-border);
  padding-top: 1.5rem;
  text-align: center;
  color: var(--text-muted);
  font-size: 0.85rem;
}

/* Responsive */
@media (max-width: 700px) {
  .site-header {
    padding: 0.75rem 1rem;
    gap: 0.5rem;
    justify-content: flex-start;
  }
  .hero h1 {
    font-size: 1.75rem;
  }
  .content-block {
    padding: 1.5rem;
  }
  #app {
    padding: 0.5rem 1rem 1.5rem;
    gap: 1.75rem;
  }
  .actions {
    flex-direction: column;
  }
  .site-footer {
    padding: 2rem 1rem 1.5rem;
  }
}

/* ─────────────────────────────────────────────────────────────
   Interactive tool widgets (Color hub: hex/rgb, contrast, palette)
   ───────────────────────────────────────────────────────────── */

.tool-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 24px;
  padding: 2.5rem 2rem;
  box-shadow: 0 10px 25px -12px rgba(15, 23, 42, 0.1);
}

.tool-grid {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.tool-input {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.tool-label {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.tool-text-input {
  font-family: 'SFMono-Regular', Menlo, Monaco, 'Roboto Mono', monospace;
  font-size: 1rem;
  padding: 0.75rem 1rem;
  border: 1px solid var(--card-border);
  border-radius: 10px;
  background: #ffffff;
  color: var(--text-color);
  width: 100%;
  box-sizing: border-box;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.tool-text-input:focus {
  outline: none;
  border-color: var(--accent-color);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
}

.rgb-inputs {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.5rem;
}

.tool-preview {
  height: 90px;
  border-radius: 12px;
  border: 1px solid var(--card-border);
}

.tool-output {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.output-row {
  display: grid;
  grid-template-columns: 70px 1fr auto;
  align-items: center;
  gap: 0.75rem;
  padding: 0.6rem 0.85rem;
  background: #f8fafc;
  border: 1px solid var(--card-border);
  border-radius: 10px;
}

.output-label {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.output-value {
  font-family: 'SFMono-Regular', Menlo, Monaco, 'Roboto Mono', monospace;
  font-size: 0.95rem;
  color: var(--text-color);
  background: transparent;
  word-break: break-all;
}

.copy-btn {
  font-size: 0.8rem;
  font-weight: 600;
  padding: 0.4rem 0.8rem;
  border: 1px solid var(--card-border);
  background: #ffffff;
  color: var(--text-muted);
  border-radius: 8px;
  cursor: pointer;
  transition: color 0.15s ease, border-color 0.15s ease;
}

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

.tool-error {
  margin-top: 1rem;
  color: var(--error-color);
  font-size: 0.9rem;
  padding: 0.6rem 0.85rem;
  background: rgba(239, 68, 68, 0.08);
  border: 1px solid rgba(239, 68, 68, 0.25);
  border-radius: 8px;
}

/* ── Contrast checker ─────────────────────────────────────── */

.contrast-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
}

.contrast-input {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.color-row {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.color-row input[type="color"] {
  width: 44px;
  height: 44px;
  border: 1px solid var(--card-border);
  border-radius: 10px;
  background: #ffffff;
  padding: 4px;
  cursor: pointer;
  flex-shrink: 0;
}

.contrast-preview {
  grid-column: 1 / -1;
  padding: 1.5rem;
  border-radius: 12px;
  border: 1px solid var(--card-border);
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  transition: background 0.15s ease, color 0.15s ease;
}

.contrast-sample.big {
  font-size: 1.25rem;
  font-weight: 700;
}

.contrast-sample.small {
  font-size: 1rem;
}

.contrast-result {
  grid-column: 1 / -1;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.ratio-display {
  display: flex;
  align-items: baseline;
  gap: 0.5rem;
  padding: 1rem 1.25rem;
  background: #f8fafc;
  border: 1px solid var(--card-border);
  border-radius: 12px;
}

.ratio-label {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.ratio-value {
  font-family: 'SFMono-Regular', Menlo, Monaco, 'Roboto Mono', monospace;
  font-size: 2rem;
  font-weight: 800;
  color: var(--text-color);
}

.ratio-suffix {
  color: var(--text-muted);
  font-size: 1rem;
}

.wcag-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.6rem;
}

.wcag-cell {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem 1rem;
  border: 1px solid var(--card-border);
  border-radius: 10px;
  background: #ffffff;
  font-size: 0.9rem;
}

.wcag-name {
  color: var(--text-muted);
  font-weight: 500;
}

.wcag-status {
  font-weight: 700;
  font-size: 0.8rem;
  padding: 0.2rem 0.6rem;
  border-radius: 999px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.wcag-cell.pass .wcag-status {
  background: rgba(16, 185, 129, 0.12);
  color: var(--success-color);
}

.wcag-cell.fail .wcag-status {
  background: rgba(239, 68, 68, 0.1);
  color: var(--error-color);
}

/* ── Palette from image ───────────────────────────────────── */

.palette-drop {
  padding: 0;
}

.palette-empty {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
  text-align: center;
  padding: 2rem 1rem;
}

.palette-drop.dragover {
  border-color: var(--accent-color);
  background: rgba(37, 99, 235, 0.05);
  border-radius: 12px;
}

.palette-result {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.palette-preview-row {
  display: flex;
  gap: 1.25rem;
  align-items: flex-start;
}

.palette-preview-row img {
  max-width: 180px;
  max-height: 180px;
  border-radius: 12px;
  border: 1px solid var(--card-border);
  object-fit: cover;
}

.palette-meta {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  flex: 1;
  min-width: 0;
}

.palette-meta p {
  color: var(--text-muted);
  font-size: 0.9rem;
  word-break: break-all;
  margin: 0;
}

.palette-swatches {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 0.5rem;
}

.swatch {
  aspect-ratio: 1 / 1;
  border-radius: 12px;
  border: 1px solid rgba(15, 23, 42, 0.1);
  cursor: pointer;
  position: relative;
  display: flex;
  align-items: flex-end;
  justify-content: center;
  padding: 0.5rem;
  transition: transform 0.12s ease;
}

.swatch:hover {
  transform: translateY(-2px);
}

.swatch-hex {
  font-family: 'SFMono-Regular', Menlo, Monaco, 'Roboto Mono', monospace;
  font-size: 0.75rem;
  font-weight: 700;
  color: #ffffff;
  background: rgba(15, 23, 42, 0.55);
  padding: 0.2rem 0.45rem;
  border-radius: 6px;
  text-transform: lowercase;
  letter-spacing: 0.02em;
}

.swatch.copied::after {
  content: 'copied';
  position: absolute;
  top: 0.4rem;
  right: 0.4rem;
  font-size: 0.65rem;
  font-weight: 700;
  text-transform: uppercase;
  background: rgba(15, 23, 42, 0.8);
  color: #ffffff;
  padding: 0.15rem 0.4rem;
  border-radius: 4px;
  letter-spacing: 0.05em;
}

@media (max-width: 600px) {
  .contrast-grid {
    grid-template-columns: 1fr;
  }
  .palette-swatches {
    grid-template-columns: repeat(3, 1fr);
  }
  .palette-preview-row {
    flex-direction: column;
  }
  .palette-preview-row img {
    max-width: 100%;
    width: 100%;
  }
  .output-row {
    grid-template-columns: 60px 1fr auto;
    gap: 0.5rem;
  }
}

/* ─────────────────────────────────────────────────────────────
   Text-input tool widgets (Dev hub: base64, url, jwt, regex)
   ───────────────────────────────────────────────────────────── */

.text-tool-grid {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.tool-textarea {
  font-family: 'SFMono-Regular', Menlo, Monaco, 'Roboto Mono', monospace;
  font-size: 0.95rem;
  line-height: 1.5;
  padding: 0.85rem 1rem;
  border: 1px solid var(--card-border);
  border-radius: 10px;
  background: #ffffff;
  color: var(--text-color);
  width: 100%;
  min-height: 110px;
  box-sizing: border-box;
  resize: vertical;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.tool-textarea:focus {
  outline: none;
  border-color: var(--accent-color);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
}

.tool-textarea.readonly {
  background: #f8fafc;
  color: var(--text-color);
}

.tool-output-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  margin-bottom: 0.5rem;
}

.tool-output-header .tool-label {
  margin: 0;
}

.tool-checkbox,
.tool-radio {
  display: flex;
  align-items: flex-start;
  gap: 0.6rem;
  font-size: 0.9rem;
  color: var(--text-muted);
  cursor: pointer;
  line-height: 1.5;
}

.tool-checkbox code,
.tool-radio code {
  background: #f1f5f9;
  border: 1px solid var(--card-border);
  border-radius: 4px;
  padding: 0.05rem 0.35rem;
  font-size: 0.85em;
  color: var(--text-color);
}

.tool-checkbox input,
.tool-radio input {
  margin-top: 0.2rem;
  flex-shrink: 0;
  accent-color: var(--accent-color);
}

.radio-row {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  padding: 0.75rem 1rem;
  border: 1px solid var(--card-border);
  border-radius: 10px;
  background: #f8fafc;
}

/* ── JWT decoder ──────────────────────────────────────────── */

.jwt-input {
  min-height: 90px;
  word-break: break-all;
}

.jwt-section {
  display: flex;
  flex-direction: column;
}

.jwt-block {
  font-family: 'SFMono-Regular', Menlo, Monaco, 'Roboto Mono', monospace;
  font-size: 0.9rem;
  line-height: 1.5;
  padding: 0.85rem 1rem;
  border: 1px solid var(--card-border);
  border-radius: 10px;
  background: #f8fafc;
  color: var(--text-color);
  margin: 0;
  white-space: pre-wrap;
  word-break: break-word;
  min-height: 2.5rem;
}

.jwt-header-block { border-left: 3px solid #ef4444; }
.jwt-payload-block { border-left: 3px solid #2563eb; }
.jwt-signature-block { border-left: 3px solid #10b981; color: var(--text-muted); }

.jwt-meta {
  font-size: 0.9rem;
  color: var(--text-muted);
  padding: 0.85rem 1rem;
  border: 1px solid var(--card-border);
  border-radius: 10px;
  background: #ffffff;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.jwt-meta code {
  background: #f1f5f9;
  border: 1px solid var(--card-border);
  border-radius: 4px;
  padding: 0.05rem 0.35rem;
  font-family: 'SFMono-Regular', Menlo, Monaco, 'Roboto Mono', monospace;
  font-size: 0.85em;
}

.jwt-valid { color: var(--success-color); }
.jwt-expired { color: var(--error-color); }

/* ── Regex tester ─────────────────────────────────────────── */

.regex-input-wrap {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  border: 1px solid var(--card-border);
  border-radius: 10px;
  background: #ffffff;
  padding: 0.4rem 0.6rem;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.regex-input-wrap:focus-within {
  border-color: var(--accent-color);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
}

.regex-slash {
  color: var(--text-muted);
  font-family: 'SFMono-Regular', Menlo, Monaco, 'Roboto Mono', monospace;
  font-size: 1.1rem;
}

.regex-pattern,
.regex-flags {
  border: none;
  background: transparent;
  padding: 0.35rem 0;
  border-radius: 0;
}

.regex-pattern:focus,
.regex-flags:focus {
  border: none;
  box-shadow: none;
  outline: none;
}

.regex-pattern { flex: 1; }

.regex-flags {
  width: 80px;
  text-align: center;
  color: var(--accent-color);
  font-weight: 700;
}

.regex-highlight {
  font-family: 'SFMono-Regular', Menlo, Monaco, 'Roboto Mono', monospace;
  font-size: 0.95rem;
  line-height: 1.6;
  padding: 0.85rem 1rem;
  border: 1px solid var(--card-border);
  border-radius: 10px;
  background: #f8fafc;
  margin: 0;
  white-space: pre-wrap;
  word-break: break-word;
  min-height: 2.5rem;
  color: var(--text-color);
}

mark.regex-match {
  background: rgba(250, 204, 21, 0.45);
  color: var(--text-color);
  padding: 0.05rem 0.15rem;
  border-radius: 3px;
}

.regex-summary {
  font-size: 0.9rem;
  color: var(--text-muted);
}

.regex-empty {
  color: var(--text-muted);
  font-style: italic;
}

.regex-count {
  font-weight: 700;
  color: var(--text-color);
  margin-bottom: 0.5rem;
}

.regex-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.regex-list li {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.6rem;
  padding: 0.5rem 0.75rem;
  background: #ffffff;
  border: 1px solid var(--card-border);
  border-radius: 8px;
}

.regex-list code {
  font-family: 'SFMono-Regular', Menlo, Monaco, 'Roboto Mono', monospace;
  background: rgba(250, 204, 21, 0.25);
  padding: 0.1rem 0.4rem;
  border-radius: 4px;
  color: var(--text-color);
  word-break: break-all;
}

.regex-idx { color: var(--text-muted); font-weight: 600; }
.regex-pos { color: var(--text-muted); font-size: 0.8rem; }
.regex-groups { color: var(--text-muted); font-size: 0.85rem; }
.regex-groups code { background: rgba(37, 99, 235, 0.15); }

.regex-truncated {
  margin-top: 0.5rem;
  color: var(--text-muted);
  font-size: 0.85rem;
  font-style: italic;
}


/* ── PDF tool widgets ─────────────────────────────────────── */

.pdf-tool {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.pdf-tool-zone {
  border: 2px dashed var(--card-border);
  border-radius: 14px;
  padding: 2rem 1.5rem;
  text-align: center;
  background: #fafbfc;
  transition: border-color 0.15s ease, background 0.15s ease;
  cursor: pointer;
}

.pdf-tool-zone:hover,
.pdf-tool-zone.dragover {
  border-color: var(--accent-color);
  background: rgba(37, 99, 235, 0.04);
}

.pdf-tool-zone p {
  margin: 0 0 0.5rem;
  color: var(--text-muted);
}

.pdf-tool-zone .pdf-pick-btn {
  display: inline-block;
  margin-top: 0.5rem;
  padding: 0.55rem 1.1rem;
  border: 1px solid var(--card-border);
  border-radius: 8px;
  background: #ffffff;
  color: var(--text-color);
  font-weight: 600;
  cursor: pointer;
}

.pdf-tool-zone .pdf-pick-btn:hover {
  border-color: var(--accent-color);
  color: var(--accent-color);
}

.pdf-tool-files {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.pdf-file-row {
  display: grid;
  grid-template-columns: 1fr auto auto;
  align-items: center;
  gap: 0.5rem;
  padding: 0.55rem 0.85rem;
  background: #f8fafc;
  border: 1px solid var(--card-border);
  border-radius: 10px;
  font-size: 0.9rem;
}

.pdf-file-name {
  font-weight: 500;
  color: var(--text-color);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.pdf-file-size {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.pdf-file-remove {
  background: none;
  border: 0;
  color: var(--text-muted);
  cursor: pointer;
  font-size: 1.1rem;
  line-height: 1;
  padding: 0 0.25rem;
}

.pdf-file-remove:hover { color: var(--error-color); }

.pdf-tool-actions {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
  align-items: center;
}

.pdf-action-btn {
  padding: 0.7rem 1.3rem;
  border: 0;
  border-radius: 10px;
  background: var(--accent-color);
  color: #ffffff;
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  transition: background 0.15s ease;
}

.pdf-action-btn:hover:not(:disabled) {
  background: #1d4ed8;
}

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

.pdf-status {
  font-size: 0.9rem;
  color: var(--text-muted);
  padding: 0.55rem 0.85rem;
  background: #f8fafc;
  border: 1px solid var(--card-border);
  border-radius: 8px;
}

.pdf-status.success { color: #059669; background: rgba(5, 150, 105, 0.06); border-color: rgba(5, 150, 105, 0.25); }
.pdf-status.error   { color: var(--error-color); background: rgba(239, 68, 68, 0.06); border-color: rgba(239, 68, 68, 0.25); }

.pdf-action-btn--ghost {
  background: transparent;
  color: var(--accent-color);
  border: 1px solid var(--card-border);
}
.pdf-action-btn--ghost:hover:not(:disabled) {
  background: rgba(37, 99, 235, 0.06);
}

.tool-hint {
  margin: 0.4rem 0 0;
  font-size: 0.85rem;
  color: var(--text-muted);
}
.tool-hint code {
  background: #eef2f7;
  padding: 0.1em 0.35em;
  border-radius: 4px;
  font-size: 0.92em;
}

.pdf-thumbs {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: 0.85rem;
  padding: 0.5rem 0;
  max-height: 520px;
  overflow-y: auto;
}

.pdf-thumb {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.35rem;
  padding: 0.45rem;
  background: #ffffff;
  border: 2px solid var(--card-border);
  border-radius: 8px;
  cursor: pointer;
  user-select: none;
  transition: border-color 0.15s ease, transform 0.1s ease, box-shadow 0.15s ease;
}

.pdf-thumb canvas {
  display: block;
  max-width: 100%;
  height: auto;
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.08);
}

.pdf-thumb-label {
  font-size: 0.78rem;
  color: var(--text-muted);
  font-family: system-ui, sans-serif;
}

.pdf-thumb:hover {
  border-color: var(--accent-color);
}

.pdf-thumb.is-selected {
  border-color: var(--accent-color);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
}

.pdf-thumb.is-marked-delete {
  border-color: var(--error-color);
  opacity: 0.55;
}
.pdf-thumb.is-marked-delete::after {
  content: '✕';
  position: absolute;
  top: 6px;
  right: 8px;
  font-size: 1.4rem;
  color: var(--error-color);
  font-weight: 700;
}

.pdf-thumbs--draggable .pdf-thumb {
  cursor: grab;
}
.pdf-thumb.is-dragging {
  opacity: 0.4;
}
.pdf-thumb.is-drop-target {
  border-color: var(--accent-color);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.2);
}

.pdf-render-frame {
  position: absolute;
  left: -99999px;
  top: 0;
  width: 1px;
  height: 1px;
  overflow: hidden;
  pointer-events: none;
}