/**
 * BoxyKit Design Tokens v1 (shared/v1/tokens.css)
 * Frozen Design System Tokens for BoxyKit v1 ecosystem.
 * Supports dark mode (default) and light mode via [data-theme="light"].
 */

:root {
  /* Color Scheme declaration for native browser widgets */
  color-scheme: dark;

  /* ==========================================================================
     1. Surface & Background Colors (Dark Mode Default)
     ========================================================================== */
  --bg-base: #090d16;
  --bg-surface: #0f172a;
  --bg-surface-elevated: #1e293b;
  --bg-surface-solid: #111827;
  --bg-card: rgba(17, 24, 39, 0.75);
  --bg-card-subtle: rgba(22, 31, 50, 0.5);
  --bg-glass: rgba(15, 23, 42, 0.75);
  --bg-glass-strong: rgba(15, 23, 42, 0.9);
  --bg-input: rgba(15, 23, 42, 0.9);
  --bg-sidebar: rgba(13, 19, 33, 0.95);
  --bg-overlay: rgba(3, 7, 18, 0.7);

  /* ==========================================================================
     2. Typography Colors
     ========================================================================== */
  --text-main: #f8fafc;
  --text-sub: #94a3b8;
  --text-muted: #64748b;
  --text-dim: #475569;
  --text-inverse: #090d16;

  /* ==========================================================================
     3. Border Colors
     ========================================================================== */
  --border-subtle: rgba(255, 255, 255, 0.08);
  --border-medium: rgba(255, 255, 255, 0.12);
  --border-strong: rgba(255, 255, 255, 0.18);
  --border-focus: #6366f1;
  --border-highlight: rgba(99, 102, 241, 0.4);

  /* ==========================================================================
     4. Brand & Accent Palette
     ========================================================================== */
  --primary: #6366f1;
  --primary-hover: #4f46e5;
  --primary-active: #4338ca;
  --primary-light: rgba(99, 102, 241, 0.12);
  --primary-glow: rgba(99, 102, 241, 0.3);

  --accent: #06b6d4;
  --accent-hover: #0891b2;
  --accent-light: rgba(6, 182, 212, 0.12);
  --accent-glow: rgba(6, 182, 212, 0.25);

  /* Functional Status Colors */
  --color-success: #10b981;
  --color-success-hover: #059669;
  --color-success-bg: rgba(16, 185, 129, 0.12);

  --color-warning: #f59e0b;
  --color-warning-hover: #d97706;
  --color-warning-bg: rgba(245, 158, 11, 0.12);

  --color-danger: #ef4444;
  --color-danger-hover: #dc2626;
  --color-danger-bg: rgba(239, 68, 68, 0.12);

  --color-info: #3b82f6;
  --color-info-hover: #2563eb;
  --color-info-bg: rgba(59, 130, 246, 0.12);

  /* ==========================================================================
     5. Typography Families & Sizing
     ========================================================================== */
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji";
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;

  /* ==========================================================================
     6. Border Radii
     ========================================================================== */
  --radius-xs: 4px;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 20px;
  --radius-2xl: 28px;
  --radius-full: 9999px;

  /* ==========================================================================
     7. Elevation & Shadows (Dark Mode)
     ========================================================================== */
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 6px 16px -2px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 12px 32px -4px rgba(0, 0, 0, 0.5);
  --shadow-card: 0 10px 30px -10px rgba(0, 0, 0, 0.5), 0 0 0 1px rgba(255, 255, 255, 0.06);
  --shadow-hover: 0 20px 40px -15px rgba(99, 102, 241, 0.25), 0 0 0 1px rgba(99, 102, 241, 0.4);
  --shadow-glow: 0 0 20px rgba(99, 102, 241, 0.25);

  /* ==========================================================================
     8. Motion & Transitions
     ========================================================================== */
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 250ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-smooth: 350ms cubic-bezier(0.16, 1, 0.3, 1);

  /* ==========================================================================
     9. Backward Compatibility Aliases
     ========================================================================== */
  --bg-page: var(--bg-base);
  --bg-primary: var(--bg-base);
  --bg-secondary: var(--bg-surface);
  --text-primary: var(--text-main);
  --text-secondary: var(--text-sub);
  --border-color: var(--border-subtle);
  --accent-primary: var(--primary);
  --accent-hover: var(--primary-hover);
  --accent-light: #818cf8;
  --accent-glow: var(--primary-glow);
  --accent-bg: var(--primary-light);
}

/* ==========================================================================
   Light Mode Overrides
   ========================================================================== */
[data-theme="light"] {
  color-scheme: light;

  --bg-base: #f8fafc;
  --bg-surface: #ffffff;
  --bg-surface-elevated: #f1f5f9;
  --bg-surface-solid: #ffffff;
  --bg-card: rgba(255, 255, 255, 0.85);
  --bg-card-subtle: rgba(241, 245, 249, 0.85);
  --bg-glass: rgba(255, 255, 255, 0.82);
  --bg-glass-strong: rgba(255, 255, 255, 0.95);
  --bg-input: #ffffff;
  --bg-sidebar: rgba(255, 255, 255, 0.95);
  --bg-overlay: rgba(15, 23, 42, 0.4);

  --text-main: #0f172a;
  --text-sub: #475569;
  --text-muted: #64748b;
  --text-dim: #94a3b8;
  --text-inverse: #ffffff;

  --border-subtle: rgba(0, 0, 0, 0.08);
  --border-medium: rgba(0, 0, 0, 0.12);
  --border-strong: rgba(0, 0, 0, 0.18);
  --border-focus: #4f46e5;
  --border-highlight: rgba(79, 70, 229, 0.35);

  --primary: #4f46e5;
  --primary-hover: #4338ca;
  --primary-active: #3730a3;
  --primary-light: rgba(79, 70, 229, 0.1);
  --primary-glow: rgba(79, 70, 229, 0.18);

  --accent: #0891b2;
  --accent-hover: #0e7490;
  --accent-light: rgba(8, 145, 178, 0.1);
  --accent-glow: rgba(8, 145, 178, 0.15);

  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08);
  --shadow-md: 0 6px 16px -2px rgba(15, 23, 42, 0.08);
  --shadow-lg: 0 12px 32px -4px rgba(15, 23, 42, 0.12);
  --shadow-card: 0 10px 25px -8px rgba(15, 23, 42, 0.08), 0 0 0 1px rgba(0, 0, 0, 0.05);
  --shadow-hover: 0 20px 35px -10px rgba(79, 70, 229, 0.15), 0 0 0 1px var(--primary);
  --shadow-glow: 0 0 20px rgba(79, 70, 229, 0.18);
}

/* ==========================================================================
   10. Unified Tool SEO Landing Components (shared across all plugins & portal)
   ========================================================================== */
.seo-landing-section {
  width: 100%;
  max-width: 1100px;
  margin: 48px auto 24px;
  padding: 32px 24px;
  box-sizing: border-box;
  color: var(--text-main);
  border-top: 1px solid var(--border-subtle);
}

.seo-hero-block {
  text-align: center;
  max-width: 860px;
  margin: 0 auto 36px;
}

.seo-h1 {
  font-size: 1.85rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin: 0 0 16px 0;
  line-height: 1.3;
  color: var(--text-main);
}

.seo-intro-lead {
  font-size: 1.05rem;
  line-height: 1.75;
  color: var(--text-sub);
  margin: 0 0 20px 0;
}

.seo-highlight-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.82rem;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: var(--radius-full);
  background: var(--primary-light);
  color: var(--primary);
  border: 1px solid var(--border-highlight);
  margin-bottom: 12px;
}

.seo-section-title {
  font-size: 1.35rem;
  font-weight: 600;
  margin: 40px 0 20px 0;
  letter-spacing: -0.01em;
  color: var(--text-main);
  display: flex;
  align-items: center;
  gap: 10px;
}

.seo-feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 18px;
  margin-bottom: 32px;
}

.seo-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 22px;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  transition: transform var(--transition-normal), border-color var(--transition-normal), box-shadow var(--transition-normal);
}

.seo-card:hover {
  transform: translateY(-2px);
  border-color: var(--border-highlight);
  box-shadow: var(--shadow-md);
}

.seo-card-icon {
  font-size: 1.6rem;
  line-height: 1;
  margin-bottom: 12px;
  display: block;
}

.seo-card-title {
  font-size: 1.05rem;
  font-weight: 600;
  margin: 0 0 8px 0;
  color: var(--text-main);
}

.seo-card-desc {
  font-size: 0.92rem;
  line-height: 1.6;
  color: var(--text-sub);
  margin: 0;
}

.seo-steps-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
  margin-bottom: 36px;
}

.seo-step-item {
  position: relative;
  background: var(--bg-card-subtle);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 20px;
}

.seo-step-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--primary);
  color: #ffffff;
  font-weight: 700;
  font-size: 0.85rem;
  margin-bottom: 12px;
}

.seo-tech-box {
  background: var(--bg-card);
  border: 1px solid var(--border-highlight);
  border-radius: var(--radius-lg);
  padding: 24px;
  margin: 32px 0;
  display: flex;
  gap: 20px;
  align-items: flex-start;
}

.seo-tech-icon {
  font-size: 2.2rem;
  flex-shrink: 0;
}

.seo-tech-content h3 {
  margin: 0 0 8px 0;
  font-size: 1.15rem;
  color: var(--text-main);
}

.seo-tech-content p {
  margin: 0;
  font-size: 0.94rem;
  line-height: 1.65;
  color: var(--text-sub);
}

.seo-faq-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 16px;
  margin-bottom: 40px;
}

.seo-faq-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 22px 24px;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.04);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  transition: all var(--transition-normal);
}

.seo-faq-card:hover {
  transform: translateY(-2px);
  border-color: var(--primary);
  box-shadow: 0 12px 28px -6px rgba(99, 102, 241, 0.15);
}

.seo-faq-q {
  font-weight: 600;
  font-size: 1.02rem;
  line-height: 1.45;
  color: var(--text-main);
  margin-bottom: 12px;
  display: flex;
  align-items: flex-start;
  gap: 12px;
}

.seo-faq-q-icon {
  width: 24px;
  height: 24px;
  border-radius: 7px;
  background: var(--primary-light);
  border: 1px solid var(--border-highlight);
  color: var(--primary);
  font-weight: 800;
  font-size: 0.8rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  margin-top: 1px;
}

.seo-faq-a {
  font-size: 0.92rem;
  line-height: 1.7;
  color: var(--text-sub);
  padding-left: 36px;
}

.seo-related-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
  margin-top: 16px;
}

.seo-related-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px;
  background: var(--bg-card-subtle);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  color: var(--text-main);
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 500;
  transition: all var(--transition-normal);
}

.seo-related-card:hover {
  background: var(--bg-surface-elevated);
  border-color: var(--primary);
  transform: translateX(3px);
  color: var(--primary);
}

@media (max-width: 640px) {
  .seo-landing-section {
    padding: 24px 16px;
    margin-top: 24px;
  }
  .seo-h1 {
    font-size: 1.5rem;
  }
  .seo-tech-box {
    flex-direction: column;
    gap: 12px;
  }
  .seo-faq-grid {
    grid-template-columns: 1fr;
  }
}

/* ==========================================================================
   SEO Friendly Text Truncate & Read More Component
   ========================================================================== */
.boxy-truncate {
  --truncate-collapsed-height: 80px;
  --truncate-mask-height: 56px;
  --truncate-mask-bg: var(--bg-surface, var(--bg-base, #0f172a));
  --truncate-transition-duration: 0.35s;
  --truncate-transition-timing: cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  display: block;
  width: 100%;
}

[data-theme="light"] .boxy-truncate {
  --truncate-mask-bg: var(--bg-surface, #ffffff);
}

.boxy-truncate-content {
  position: relative;
  overflow: hidden;
  max-height: var(--truncate-collapsed-height);
  transition: max-height var(--truncate-transition-duration) var(--truncate-transition-timing);
  will-change: max-height;
}

.boxy-truncate-content::after {
  content: '';
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: var(--truncate-mask-height);
  background: linear-gradient(to bottom, rgba(15, 23, 42, 0) 0%, var(--truncate-mask-bg) 95%);
  pointer-events: none;
  opacity: 1;
  visibility: visible;
  transition: opacity 0.25s ease, visibility 0.25s ease;
  z-index: 2;
}

[data-theme="light"] .boxy-truncate-content::after {
  background: linear-gradient(to bottom, rgba(255, 255, 255, 0) 0%, var(--truncate-mask-bg) 95%);
}

.boxy-truncate.is-expanded .boxy-truncate-content::after {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.boxy-truncate.is-not-overflowing .boxy-truncate-content {
  max-height: none !important;
  overflow: visible !important;
}

.boxy-truncate.is-not-overflowing .boxy-truncate-content::after,
.boxy-truncate.is-not-overflowing .boxy-truncate-actions {
  display: none !important;
}

.boxy-truncate-actions {
  display: flex;
  justify-content: center;
  align-items: center;
  margin-top: 10px;
  position: relative;
  z-index: 3;
}

.boxy-truncate-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 6px 16px;
  min-height: 32px;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--primary, #6366f1);
  background: var(--bg-card-subtle, rgba(22, 31, 50, 0.6));
  border: 1px solid var(--border-subtle, rgba(255, 255, 255, 0.1));
  border-radius: var(--radius-full, 9999px);
  cursor: pointer;
  user-select: none;
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.15);
  outline: none;
}

.boxy-truncate-btn:hover {
  background: var(--primary-light, rgba(99, 102, 241, 0.15));
  border-color: var(--border-highlight, rgba(99, 102, 241, 0.4));
  color: #ffffff;
  transform: translateY(-1px);
  box-shadow: 0 4px 12px var(--primary-glow, rgba(99, 102, 241, 0.25));
}

.boxy-truncate-btn:active {
  transform: translateY(0);
}

.boxy-truncate-btn:focus-visible {
  outline: 2px solid var(--border-focus, #6366f1);
  outline-offset: 2px;
}

.boxy-truncate-icon {
  width: 14px;
  height: 14px;
  flex-shrink: 0;
  transition: transform var(--truncate-transition-duration) var(--truncate-transition-timing);
}

.boxy-truncate.is-expanded .boxy-truncate-icon {
  transform: rotate(180deg);
}

@media (prefers-reduced-motion: reduce) {
  .boxy-truncate-content,
  .boxy-truncate-content::after,
  .boxy-truncate-btn,
  .boxy-truncate-icon {
    transition: none !important;
  }
}