/* PasteXray - Modern, Inspection-First CSS Architecture */
:root {
  --bg-primary: #0f172a;
  --bg-surface: #1e293b;
  --bg-elevated: #334155;
  --bg-input: #0b1120;
  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --border-color: #334155;
  --border-focus: #38bdf8;
  --primary-accent: #38bdf8;
  --primary-hover: #0284c7;
  --success-color: #10b981;
  --warning-color: #f59e0b;
  --danger-color: #ef4444;
  --info-color: #6366f1;
  --vault-gold: #fbbf24;

  --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji";
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
}

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

html, body {
  max-width: 100%;
  overflow-x: hidden;
}

body {
  font-family: var(--font-family);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.5;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

a {
  color: var(--primary-accent);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

/* Header & Navigation */
.site-header {
  background-color: var(--bg-surface);
  border-bottom: 1px solid var(--border-color);
  padding: 0.75rem 1.5rem;
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-container {
  max-width: 1400px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.brand-wrapper {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.brand-logo {
  font-weight: 800;
  font-size: 1.25rem;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 0.5rem;
  text-decoration: none;
}

.brand-logo .logo-xray {
  color: var(--primary-accent);
}

.brand-tagline {
  font-size: 0.75rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border-left: 1px solid var(--border-color);
  padding-left: 0.75rem;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 1.25rem;
}

.nav-link {
  font-size: 0.875rem;
  color: var(--text-secondary);
  font-weight: 500;
  transition: color 0.15s;
}

.nav-link:hover, .nav-link.active {
  color: var(--primary-accent);
  text-decoration: none;
}

.vault-btn {
  background: linear-gradient(135deg, #b45309, #d97706);
  color: #fff !important;
  font-weight: 600;
  font-size: 0.8125rem;
  padding: 0.4rem 0.85rem;
  border-radius: var(--radius-md);
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  border: 1px solid rgba(251, 191, 36, 0.4);
  transition: transform 0.1s, box-shadow 0.15s;
  text-decoration: none !important;
}

.vault-btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(217, 119, 6, 0.35);
}

.vault-badge-indicator {
  background-color: var(--vault-gold);
  color: #000;
  font-size: 0.7rem;
  font-weight: 700;
  padding: 0.1rem 0.35rem;
  border-radius: 999px;
  text-transform: uppercase;
}

/* Privacy Disclosures Banners */
.privacy-banner {
  font-size: 0.8125rem;
  padding: 0.65rem 1.5rem;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
}

.public-banner {
  background-color: rgba(30, 41, 59, 0.8);
  color: var(--text-secondary);
}

.vault-banner {
  background: linear-gradient(90deg, rgba(180, 83, 9, 0.25), rgba(15, 23, 42, 0.95));
  border-bottom: 1px solid rgba(251, 191, 36, 0.3);
  color: #fde68a;
}

/* Main Content Container */
.main-wrapper {
  max-width: 1400px;
  margin: 0 auto;
  padding: 1.5rem;
  width: 100%;
  flex: 1;
}

.tool-header-block {
  margin-bottom: 1.5rem;
}

.tool-header-block h1 {
  font-size: 1.75rem;
  font-weight: 700;
  margin-bottom: 0.35rem;
}

.tool-header-block p {
  color: var(--text-secondary);
  font-size: 0.95rem;
}

/* Workspace Options Toolbar */
.options-bar {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 0.75rem 1rem;
  margin-bottom: 1rem;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1.25rem;
}

.option-group {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.option-group label {
  cursor: pointer;
  user-select: none;
}

.option-group select {
  background-color: var(--bg-input);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  padding: 0.3rem 0.6rem;
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  outline: none;
}

.option-group select:focus {
  border-color: var(--border-focus);
}

.option-group input[type="checkbox"] {
  cursor: pointer;
  accent-color: var(--primary-accent);
  width: 1rem;
  height: 1rem;
}

/* Anomaly Notification Bar */
.anomaly-bar {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 0.65rem 1rem;
  margin-bottom: 1rem;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.85rem;
}

.anomaly-bar-title {
  font-weight: 600;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.anomaly-chip {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.2rem 0.55rem;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 600;
}

.chip-info {
  background-color: rgba(56, 189, 248, 0.15);
  color: var(--primary-accent);
  border: 1px solid rgba(56, 189, 248, 0.3);
}

.chip-warning {
  background-color: rgba(245, 158, 11, 0.15);
  color: var(--warning-color);
  border: 1px solid rgba(245, 158, 11, 0.3);
}

.chip-error {
  background-color: rgba(239, 68, 68, 0.15);
  color: var(--danger-color);
  border: 1px solid rgba(239, 68, 68, 0.3);
}

/* 3-Pane Inspection Workspace */
.workspace-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  margin-bottom: 1.5rem;
}

@media (max-width: 1024px) {
  .workspace-grid {
    grid-template-columns: 1fr;
  }
}

.pane-card {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.pane-header {
  padding: 0.65rem 1rem;
  background-color: rgba(15, 23, 42, 0.6);
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.pane-title {
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-secondary);
}

.pane-actions {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.btn-secondary {
  background-color: var(--bg-elevated);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  font-size: 0.75rem;
  padding: 0.25rem 0.5rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: background-color 0.15s;
}

.btn-secondary:hover {
  background-color: var(--border-color);
}

.btn-primary {
  background-color: var(--primary-accent);
  border: 1px solid var(--primary-accent);
  color: #0f172a;
  font-weight: 600;
  font-size: 0.75rem;
  padding: 0.25rem 0.65rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: background-color 0.15s;
}

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

.pane-body {
  position: relative;
  flex: 1;
  min-height: 380px;
  display: flex;
  flex-direction: column;
}

.pane-textarea {
  width: 100%;
  height: 100%;
  min-height: 380px;
  background-color: var(--bg-input);
  color: var(--text-primary);
  font-family: var(--font-mono);
  font-size: 0.875rem;
  line-height: 1.6;
  padding: 1rem;
  border: none;
  resize: vertical;
  outline: none;
}

.pane-textarea:focus {
  box-shadow: inset 0 0 0 1px var(--border-focus);
}

/* X-Ray Highlight Pane (Read-Only Formatted Inspector) */
.xray-container {
  width: 100%;
  height: 100%;
  min-height: 380px;
  background-color: #060913;
  color: #e2e8f0;
  font-family: var(--font-mono);
  font-size: 0.875rem;
  line-height: 1.7;
  padding: 1rem;
  overflow-y: auto;
  white-space: pre-wrap;
  word-break: break-all;
}

/* X-Ray High-Contrast Inline Badges */
.badge-zwsp, .badge-zwnj, .badge-zwj, .badge-bom {
  background-color: #be123c;
  color: #fff;
  font-size: 0.725rem;
  font-weight: 700;
  padding: 0.1rem 0.35rem;
  border-radius: var(--radius-sm);
  margin: 0 0.15rem;
  display: inline-block;
  user-select: all;
  border: 1px solid #f43f5e;
}

.badge-nbsp {
  background-color: #0369a1;
  color: #e0f2fe;
  font-size: 0.725rem;
  font-weight: 700;
  padding: 0.1rem 0.35rem;
  border-radius: var(--radius-sm);
  margin: 0 0.15rem;
  display: inline-block;
}

.badge-dir, .badge-shy {
  background-color: #854d0e;
  color: #fef08a;
  font-size: 0.725rem;
  font-weight: 700;
  padding: 0.1rem 0.35rem;
  border-radius: var(--radius-sm);
  margin: 0 0.15rem;
  display: inline-block;
}

.badge-ctrl {
  background-color: #7f1d1d;
  color: #fecaca;
  font-size: 0.725rem;
  font-weight: 800;
  padding: 0.1rem 0.35rem;
  border-radius: var(--radius-sm);
  margin: 0 0.15rem;
  display: inline-block;
  border: 1px solid #dc2626;
}

.badge-quote, .badge-dash {
  background-color: #475569;
  color: #f1f5f9;
  font-size: 0.725rem;
  font-weight: 600;
  padding: 0.1rem 0.35rem;
  border-radius: var(--radius-sm);
  margin: 0 0.15rem;
  display: inline-block;
}

.badge-escaped {
  background-color: #065f46;
  color: #a7f3d0;
  font-size: 0.75rem;
  font-weight: 600;
  padding: 0.1rem 0.4rem;
  border-radius: var(--radius-sm);
  display: inline-block;
}

.badge-trimmed {
  background-color: #3b0764;
  color: #e9d5ff;
  font-size: 0.75rem;
  font-weight: 600;
  padding: 0.1rem 0.4rem;
  border-radius: var(--radius-sm);
  display: inline-block;
}

.badge-dup, .badge-dup-kept {
  background-color: #78350f;
  color: #fde68a;
  font-size: 0.75rem;
  font-weight: 600;
  padding: 0.1rem 0.4rem;
  border-radius: var(--radius-sm);
  display: inline-block;
}

.badge-empty {
  color: var(--text-muted);
  font-size: 0.75rem;
  font-style: italic;
}

.badge-ragged {
  background-color: #881337;
  color: #fecdd3;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0.15rem 0.5rem;
  border-radius: var(--radius-sm);
  display: inline-block;
  border: 1px solid #f43f5e;
}

.badge-align-stripped, .badge-header {
  background-color: #1e293b;
  color: #94a3b8;
  font-size: 0.75rem;
  padding: 0.1rem 0.4rem;
  border-radius: var(--radius-sm);
  display: inline-block;
}

.badge-joined-wrap {
  background-color: #065f46;
  color: #6ee7b7;
  font-size: 0.725rem;
  font-weight: 700;
  padding: 0.1rem 0.35rem;
  border-radius: var(--radius-sm);
  margin: 0 0.2rem;
  display: inline-block;
}

.badge-case-change {
  background-color: rgba(56, 189, 248, 0.18);
  color: #38bdf8;
  border: 1px solid rgba(56, 189, 248, 0.4);
  font-size: 0.725rem;
  font-weight: 700;
  padding: 0.1rem 0.35rem;
  border-radius: var(--radius-sm);
  margin: 0 0.2rem;
  display: inline-block;
}

.badge-hyphen {
  background-color: #0e7490;
  color: #a5f3fc;
  font-size: 0.725rem;
  font-weight: 700;
  padding: 0.1rem 0.35rem;
  border-radius: var(--radius-sm);
  margin: 0 0.2rem;
  display: inline-block;
}

.badge-preserved-break {
  background-color: #1e3a8a;
  color: #bfdbfe;
  font-size: 0.725rem;
  font-weight: 700;
  padding: 0.1rem 0.35rem;
  border-radius: var(--radius-sm);
  margin: 0 0.2rem;
  display: inline-block;
}

/* Technical Guide Section & Expandable Accordion */
.technical-guide-section {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 1.25rem 1.5rem;
  margin-top: 2rem;
}

.guide-accordion {
  padding: 0.85rem 1.25rem;
  transition: border-color 0.15s, background-color 0.15s;
}

.guide-accordion:hover {
  border-color: var(--primary-accent);
}

.guide-accordion-summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--text-primary);
  user-select: none;
  cursor: pointer;
  list-style: none;
}

.guide-accordion-summary::-webkit-details-marker {
  display: none;
}

.guide-accordion-summary::after {
  content: '▸';
  font-size: 1.1rem;
  color: var(--primary-accent);
  transition: transform 0.2s ease;
}

.guide-accordion[open] .guide-accordion-summary::after {
  content: '▾';
}

.guide-toggle-hint {
  font-size: 0.75rem;
  color: var(--text-muted);
  font-weight: normal;
  margin-left: auto;
  margin-right: 0.75rem;
}

.guide-accordion-body {
  margin-top: 1rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border-color);
}

.guide-accordion-body p,
.technical-guide-section p {
  color: var(--text-secondary);
  font-size: 0.925rem;
  margin-bottom: 0.85rem;
  line-height: 1.6;
}

.technical-guide-section h2 {
  font-size: 1.25rem;
  margin-bottom: 0.75rem;
  color: var(--text-primary);
}

/* 150px Minimum Vertical Safety Buffer for Ads (Public Site ONLY) */
.ad-safety-buffer {
  min-height: 150px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  margin-top: 2.5rem;
}

.ad-structural-divider {
  width: 100%;
  border-top: 1px dashed var(--border-color);
  margin-bottom: 1.5rem;
  position: relative;
  text-align: center;
}

.ad-divider-label {
  position: relative;
  top: -0.65rem;
  background-color: var(--bg-primary);
  padding: 0 0.75rem;
  font-size: 0.7rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.ad-container {
  width: 100%;
  max-width: 970px;
  min-height: 90px;
  background-color: rgba(30, 41, 59, 0.3);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  font-size: 0.8rem;
  text-align: center;
  padding: 1rem;
}

/* Landing Page Grid */
.tools-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 1.5rem;
  margin-top: 1.5rem;
}

.tool-card {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: transform 0.15s, border-color 0.15s;
}

.tool-card:hover {
  transform: translateY(-2px);
  border-color: var(--primary-accent);
}

.tool-card h3 {
  font-size: 1.2rem;
  margin-top: 0.5rem;
  margin-bottom: 0.5rem;
  color: var(--text-primary);
}

.tool-card p {
  color: var(--text-secondary);
  font-size: 0.875rem;
  margin-bottom: 1.25rem;
  flex: 1;
}

.tool-card .card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.category-tag {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 600;
  padding: 0.2rem 0.65rem;
  border-radius: 9999px;
  background-color: rgba(56, 189, 248, 0.12);
  color: #38bdf8;
  border: 1px solid rgba(56, 189, 248, 0.25);
  margin-bottom: 0.6rem;
  letter-spacing: 0.02em;
}

.priority-tag {
  font-size: 0.7rem;
  font-weight: 700;
  padding: 0.2rem 0.5rem;
  border-radius: var(--radius-sm);
  background-color: var(--bg-elevated);
  color: var(--text-secondary);
}

/* Footer */
.site-footer {
  background-color: var(--bg-surface);
  border-top: 1px solid var(--border-color);
  padding: 1.5rem;
  text-align: center;
  color: var(--text-muted);
  font-size: 0.8rem;
  margin-top: auto;
}

.footer-links {
  display: flex;
  justify-content: center;
  gap: 1.5rem;
  margin-bottom: 0.75rem;
}

.footer-brand-credit {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.45rem;
  margin-top: 1.25rem;
  font-size: 0.72rem;
  color: var(--text-muted);
  opacity: 0.5;
  transition: opacity 0.2s ease;
}

.footer-brand-credit:hover {
  opacity: 0.85;
}

.oskarwerk-link {
  display: inline-flex;
  align-items: center;
  text-decoration: none;
  line-height: 1;
}

.oskarwerk-logo-img {
  height: 12px;
  width: auto;
  max-height: 12px;
  max-width: 100px;
  vertical-align: middle;
  display: inline-block;
}

/* Landing Page Header & Utility Classes (Zero inline styles) */
.index-header-block {
  text-align: center;
  max-width: 800px;
  margin: 2rem auto 2.5rem;
}

.index-title {
  font-size: 2.25rem;
  margin-bottom: 0.75rem;
}

.index-desc {
  font-size: 1.1rem;
  line-height: 1.6;
}

.index-desc-vault {
  font-size: 1.1rem;
  line-height: 1.6;
  color: #fde68a;
}

.index-guide-section {
  margin-top: 3rem;
}

/* Mobile Responsive Ergonomics (Zero Horizontal Overflow at 375px/390px) */
.mobile-vault-callout {
  display: none;
  margin-bottom: 1rem;
}

@media (max-width: 840px) {
  .site-header {
    padding: 0.6rem 1rem;
  }

  .header-container {
    flex-direction: column;
    align-items: stretch;
    gap: 0.6rem;
  }

  .brand-wrapper {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
  }

  .brand-tagline {
    display: none;
  }

  .site-nav {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    white-space: nowrap;
    padding-bottom: 0.35rem;
    width: 100%;
    scrollbar-width: thin;
  }

  .site-nav::-webkit-scrollbar {
    height: 3px;
  }

  .site-nav::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: var(--radius-sm);
  }

  .nav-link {
    font-size: 0.8125rem;
    padding: 0.35rem 0.65rem;
    background-color: var(--bg-elevated);
    border-radius: var(--radius-sm);
    flex-shrink: 0;
  }

  .nav-link.active {
    background-color: rgba(56, 189, 248, 0.25);
    color: var(--primary-accent);
    border: 1px solid rgba(56, 189, 248, 0.4);
  }

  .vault-btn {
    font-size: 0.8rem;
    padding: 0.35rem 0.75rem;
    flex-shrink: 0;
  }

  .mobile-vault-callout {
    display: block;
  }

  .mobile-vault-btn {
    display: flex;
    justify-content: center;
    width: 100%;
    padding: 0.65rem 1rem;
    font-size: 0.875rem;
    text-align: center;
  }

  .privacy-banner {
    padding: 0.5rem 0.75rem;
    font-size: 0.75rem;
  }

  .main-wrapper {
    padding: 1rem 0.75rem;
    max-width: 100%;
  }

  .pane-card {
    min-width: 0;
  }

  .pane-textarea {
    min-height: 180px;
    font-size: 0.8125rem;
  }

  .xray-content {
    min-height: 180px;
    max-height: 280px;
    font-size: 0.8125rem;
  }

  .options-bar {
    gap: 0.75rem;
  }

  .tool-header-block h1 {
    font-size: 1.35rem;
  }

  .index-title {
    font-size: 1.6rem;
  }

  .index-desc, .index-desc-vault {
    font-size: 0.95rem;
  }

  .tools-grid {
    grid-template-columns: 1fr;
  }
}