/* =========================================================================
   OmniGest — Design System & Theme
   Production CSS | Dark/Light | WCAG AA | Mobile-first
   ========================================================================= */

/* -------------------------------------------------------------------------
   0. CSS Custom Properties (Light theme defaults)
   ------------------------------------------------------------------------- */

:root {
  /* --- Palette --------------------------------------------------------- */
  --color-bg:           #ffffff;
  --color-bg-alt:       #f8fafc;
  --color-surface:      #ffffff;
  --color-card:         #f8fafc;
  --color-card-hover:   #f1f5f9;
  --color-border:       #e2e8f0;
  --color-border-subtle:#f1f5f9;

  --color-text:         #1e293b;
  --color-text-secondary:#475569;
  --color-text-muted:   #64748b;
  --color-text-inv:     #ffffff;

  --color-accent:       #4f46e5;
  --color-accent-hover: #4338ca;
  --color-accent-light: #eef2ff;
  --color-accent-text:  #ffffff;

  --color-success:      #16a34a;
  --color-success-bg:   #f0fdf4;
  --color-success-border:#bbf7d0;
  --color-error:        #dc2626;
  --color-error-bg:     #fef2f2;
  --color-error-border: #fecaca;
  --color-warning:      #d97706;
  --color-warning-bg:   #fffbeb;
  --color-warning-border:#fde68a;
  --color-info:         #2563eb;
  --color-info-bg:      #eff6ff;
  --color-info-border:  #bfdbfe;

  --color-nav-bg:       rgba(255,255,255,0.85);
  --color-nav-border:   #e2e8f0;
  --color-footer-bg:    #0f172a;
  --color-footer-text:  #cbd5e1;
  --color-footer-heading:#f1f5f9;
  --color-footer-link:  #94a3b8;
  --color-footer-link-hover:#e2e8f0;

  --color-code-bg:      #1e293b;
  --color-code-text:    #e2e8f0;
  --color-code-inline-bg:#f1f5f9;
  --color-code-inline-text:#be185d;

  --color-selection-bg: #c7d2fe;
  --color-selection-text:#1e293b;

  --color-tag-bg:       #eef2ff;
  --color-tag-text:     #4338ca;
  --color-tag-border:   #c7d2fe;

  --color-input-bg:     #ffffff;
  --color-input-border: #cbd5e1;
  --color-input-focus:  #4f46e5;
  --color-input-placeholder:#94a3b8;

  --color-scrollbar-track:  #f1f5f9;
  --color-scrollbar-thumb:  #cbd5e1;
  --color-scrollbar-hover:  #94a3b8;

  /* --- Shadows --------------------------------------------------------- */
  --shadow-sm:    0 1px 2px rgba(0,0,0,0.05);
  --shadow-md:    0 4px 6px -1px rgba(0,0,0,0.07), 0 2px 4px -2px rgba(0,0,0,0.05);
  --shadow-lg:    0 10px 15px -3px rgba(0,0,0,0.08), 0 4px 6px -4px rgba(0,0,0,0.04);
  --shadow-xl:    0 20px 25px -5px rgba(0,0,0,0.08), 0 8px 10px -6px rgba(0,0,0,0.04);
  --shadow-card:  0 1px 3px rgba(0,0,0,0.06), 0 1px 2px rgba(0,0,0,0.04);
  --shadow-card-hover: 0 10px 20px -5px rgba(0,0,0,0.1), 0 4px 6px -2px rgba(0,0,0,0.05);
  --shadow-nav:   0 1px 3px rgba(0,0,0,0.05);

  /* --- Typography ------------------------------------------------------ */
  --font-sans:    'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
  --font-mono:    'JetBrains Mono', 'Fira Code', 'SF Mono', Consolas, 'Liberation Mono', monospace;
  --font-heading: var(--font-sans);

  --text-xs:   0.75rem;    /* 12px */
  --text-sm:   0.875rem;   /* 14px */
  --text-base: 1rem;       /* 16px */
  --text-lg:   1.125rem;   /* 18px */
  --text-xl:   1.25rem;    /* 20px */
  --text-2xl:  1.5rem;     /* 24px */
  --text-3xl:  1.875rem;   /* 30px */
  --text-4xl:  2.25rem;    /* 36px */
  --text-5xl:  3rem;       /* 48px */

  --leading-tight:   1.25;
  --leading-normal:  1.6;
  --leading-relaxed: 1.75;

  --weight-normal:  400;
  --weight-medium:  500;
  --weight-semi:    600;
  --weight-bold:    700;
  --weight-extra:   800;

  /* --- Spacing --------------------------------------------------------- */
  --space-1:  0.25rem;
  --space-2:  0.5rem;
  --space-3:  0.75rem;
  --space-4:  1rem;
  --space-5:  1.25rem;
  --space-6:  1.5rem;
  --space-8:  2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;

  /* --- Radii ----------------------------------------------------------- */
  --radius-sm:   0.375rem;
  --radius-md:   0.5rem;
  --radius-lg:   0.75rem;
  --radius-xl:   1rem;
  --radius-2xl:  1.5rem;
  --radius-full: 9999px;

  /* --- Transitions ----------------------------------------------------- */
  --transition-fast:   150ms ease;
  --transition-base:   200ms ease;
  --transition-theme:  300ms ease;

  /* --- Layout ---------------------------------------------------------- */
  --container-max: 1200px;
  --nav-height:    4rem;
}


/* -------------------------------------------------------------------------
   0b. Dark theme overrides
   ------------------------------------------------------------------------- */

[data-theme="dark"] {
  --color-bg:           #0f1117;
  --color-bg-alt:       #161822;
  --color-surface:      #1a1d27;
  --color-card:         #1a1d27;
  --color-card-hover:   #232736;
  --color-border:       #2d3248;
  --color-border-subtle:#1e2235;

  --color-text:         #e2e8f0;
  --color-text-secondary:#b0bac9;
  --color-text-muted:   #94a3b8;
  --color-text-inv:     #0f1117;

  --color-accent:       #6366f1;
  --color-accent-hover: #818cf8;
  --color-accent-light: rgba(99,102,241,0.12);
  --color-accent-text:  #ffffff;

  --color-success-bg:   rgba(22,163,74,0.1);
  --color-success-border:#166534;
  --color-error-bg:     rgba(220,38,38,0.1);
  --color-error-border: #991b1b;
  --color-warning-bg:   rgba(217,119,6,0.1);
  --color-warning-border:#92400e;
  --color-info-bg:      rgba(37,99,235,0.1);
  --color-info-border:  #1e40af;

  --color-nav-bg:       rgba(15,17,23,0.88);
  --color-nav-border:   #2d3248;
  --color-footer-bg:    #080a10;

  --color-code-bg:      #0d0f17;
  --color-code-inline-bg:rgba(99,102,241,0.1);
  --color-code-inline-text:#a5b4fc;

  --color-selection-bg: #4338ca;
  --color-selection-text:#e2e8f0;

  --color-tag-bg:       rgba(99,102,241,0.12);
  --color-tag-text:     #a5b4fc;
  --color-tag-border:   rgba(99,102,241,0.25);

  --color-input-bg:     #1a1d27;
  --color-input-border: #2d3248;

  --color-scrollbar-track:  #161822;
  --color-scrollbar-thumb:  #2d3248;
  --color-scrollbar-hover:  #3d4260;

  --shadow-sm:    0 1px 2px rgba(0,0,0,0.3);
  --shadow-md:    0 4px 6px -1px rgba(0,0,0,0.4), 0 2px 4px -2px rgba(0,0,0,0.3);
  --shadow-lg:    0 10px 15px -3px rgba(0,0,0,0.4), 0 4px 6px -4px rgba(0,0,0,0.3);
  --shadow-xl:    0 20px 25px -5px rgba(0,0,0,0.5), 0 8px 10px -6px rgba(0,0,0,0.3);
  --shadow-card:  0 1px 3px rgba(0,0,0,0.3), 0 1px 2px rgba(0,0,0,0.2);
  --shadow-card-hover: 0 10px 20px -5px rgba(0,0,0,0.5), 0 4px 6px -2px rgba(0,0,0,0.3);
  --shadow-nav:   0 1px 3px rgba(0,0,0,0.3);
}

/* Auto-detect when no cookie is set (JS applies data-theme on load) */
@media (prefers-color-scheme: dark) {
  :root:not([data-theme]) {
    --color-bg:           #0f1117;
    --color-bg-alt:       #161822;
    --color-surface:      #1a1d27;
    --color-card:         #1a1d27;
    --color-card-hover:   #232736;
    --color-border:       #2d3248;
    --color-border-subtle:#1e2235;

    --color-text:         #e2e8f0;
    --color-text-secondary:#b0bac9;
    --color-text-muted:   #94a3b8;
    --color-text-inv:     #0f1117;

    --color-accent:       #6366f1;
    --color-accent-hover: #818cf8;
    --color-accent-light: rgba(99,102,241,0.12);
    --color-accent-text:  #ffffff;

    --color-success-bg:   rgba(22,163,74,0.1);
    --color-success-border:#166534;
    --color-error-bg:     rgba(220,38,38,0.1);
    --color-error-border: #991b1b;
    --color-warning-bg:   rgba(217,119,6,0.1);
    --color-warning-border:#92400e;
    --color-info-bg:      rgba(37,99,235,0.1);
    --color-info-border:  #1e40af;

    --color-nav-bg:       rgba(15,17,23,0.88);
    --color-nav-border:   #2d3248;
    --color-footer-bg:    #080a10;

    --color-code-bg:      #0d0f17;
    --color-code-inline-bg:rgba(99,102,241,0.1);
    --color-code-inline-text:#a5b4fc;

    --color-selection-bg: #4338ca;
    --color-selection-text:#e2e8f0;

    --color-tag-bg:       rgba(99,102,241,0.12);
    --color-tag-text:     #a5b4fc;
    --color-tag-border:   rgba(99,102,241,0.25);

    --color-input-bg:     #1a1d27;
    --color-input-border: #2d3248;

    --color-scrollbar-track:  #161822;
    --color-scrollbar-thumb:  #2d3248;
    --color-scrollbar-hover:  #3d4260;

    --shadow-sm:    0 1px 2px rgba(0,0,0,0.3);
    --shadow-md:    0 4px 6px -1px rgba(0,0,0,0.4), 0 2px 4px -2px rgba(0,0,0,0.3);
    --shadow-lg:    0 10px 15px -3px rgba(0,0,0,0.4), 0 4px 6px -4px rgba(0,0,0,0.3);
    --shadow-xl:    0 20px 25px -5px rgba(0,0,0,0.5), 0 8px 10px -6px rgba(0,0,0,0.3);
    --shadow-card:  0 1px 3px rgba(0,0,0,0.3), 0 1px 2px rgba(0,0,0,0.2);
    --shadow-card-hover: 0 10px 20px -5px rgba(0,0,0,0.5), 0 4px 6px -2px rgba(0,0,0,0.3);
    --shadow-nav:   0 1px 3px rgba(0,0,0,0.3);
  }
}


/* -------------------------------------------------------------------------
   1. Reset & Base
   ------------------------------------------------------------------------- */

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

body {
  font-family: var(--font-sans);
  font-size: var(--text-base);
  line-height: var(--leading-normal);
  color: var(--color-text);
  background-color: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  transition: background-color var(--transition-theme),
              color var(--transition-theme);
}

main {
  flex: 1;
}

::selection {
  background-color: var(--color-selection-bg);
  color: var(--color-selection-text);
}

/* Scrollbar (Webkit) */
::-webkit-scrollbar {
  width: 10px;
  height: 10px;
}
::-webkit-scrollbar-track {
  background: var(--color-scrollbar-track);
}
::-webkit-scrollbar-thumb {
  background: var(--color-scrollbar-thumb);
  border-radius: var(--radius-full);
  border: 2px solid var(--color-scrollbar-track);
}
::-webkit-scrollbar-thumb:hover {
  background: var(--color-scrollbar-hover);
}

/* Firefox scrollbar */
* {
  scrollbar-width: thin;
  scrollbar-color: var(--color-scrollbar-thumb) var(--color-scrollbar-track);
}

/* Focus */
:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

a {
  color: var(--color-accent);
  text-decoration: none;
  transition: color var(--transition-fast);
}
a:hover {
  color: var(--color-accent-hover);
}

img, svg, video {
  display: block;
  max-width: 100%;
  height: auto;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: var(--weight-bold);
  line-height: var(--leading-tight);
  color: var(--color-text);
}


/* -------------------------------------------------------------------------
   2. Container
   ------------------------------------------------------------------------- */

.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--space-6);
}

@media (max-width: 767px) {
  .container {
    padding-inline: var(--space-4);
  }
}


/* -------------------------------------------------------------------------
   3. Navigation
   ------------------------------------------------------------------------- */

.nav {
  position: sticky;
  top: 0;
  z-index: 1000;
  height: var(--nav-height);
  background: var(--color-nav-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-nav-border);
  box-shadow: var(--shadow-nav);
  transition: background-color var(--transition-theme),
              border-color var(--transition-theme);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  gap: var(--space-6);
}

/* Logo */
.nav-logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-size: var(--text-lg);
  font-weight: var(--weight-bold);
  color: var(--color-text);
  text-decoration: none;
  flex-shrink: 0;
}
.nav-logo:hover {
  color: var(--color-accent);
}
.nav-logo img {
  width: 32px;
  height: 32px;
}

/* Links */
.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-1);
}

.nav-links a {
  display: inline-flex;
  align-items: center;
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-md);
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  color: var(--color-text-muted);
  text-decoration: none;
  transition: color var(--transition-fast),
              background-color var(--transition-fast);
}
.nav-links a:hover {
  color: var(--color-text);
  background-color: var(--color-card-hover);
}
.nav-links a.active {
  color: var(--color-accent);
  background-color: var(--color-accent-light);
}

/* Actions (right side) */
.nav-actions {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  flex-shrink: 0;
}

/* Mobile menu button */
.mobile-menu-btn {
  display: none;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  padding: 0;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: transparent;
  color: var(--color-text);
  font-size: var(--text-xl);
  cursor: pointer;
  transition: background-color var(--transition-fast),
              border-color var(--transition-fast);
  line-height: 1;
}
.mobile-menu-btn:hover {
  background-color: var(--color-card-hover);
}

/* Responsive nav */
@media (max-width: 767px) {
  .mobile-menu-btn {
    display: flex;
  }

  .nav-inner {
    flex-wrap: wrap;
  }

  .nav-links {
    display: none;
    flex-direction: column;
    width: 100%;
    padding: var(--space-4) 0;
    gap: var(--space-1);
    order: 10;
  }
  .nav-links.active {
    display: flex;
  }
  .nav-links a {
    width: 100%;
    padding: var(--space-3) var(--space-4);
    border-radius: var(--radius-md);
    font-size: var(--text-base);
  }

  .nav-actions {
    order: 2;
  }

  .nav {
    height: auto;
    min-height: var(--nav-height);
  }
  .nav-inner {
    padding-block: var(--space-3);
  }
}


/* -------------------------------------------------------------------------
   4. Theme Toggle
   ------------------------------------------------------------------------- */

.lang-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 38px;
  padding: 0 0.6rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: transparent;
  color: var(--color-text-muted);
  font-size: var(--text-sm);
  font-weight: var(--weight-semibold);
  text-decoration: none;
  cursor: pointer;
  transition: color var(--transition-fast),
              background-color var(--transition-fast),
              border-color var(--transition-fast);
  letter-spacing: 0.03em;
}
.lang-toggle:hover {
  color: var(--color-accent);
  background-color: var(--color-accent-light);
  border-color: var(--color-accent);
  text-decoration: none;
}

.theme-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  padding: 0;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: transparent;
  color: var(--color-text-muted);
  font-size: var(--text-lg);
  cursor: pointer;
  transition: color var(--transition-fast),
              background-color var(--transition-fast),
              border-color var(--transition-fast);
  line-height: 1;
}
.theme-toggle:hover {
  color: var(--color-accent);
  background-color: var(--color-accent-light);
  border-color: var(--color-accent);
}


/* -------------------------------------------------------------------------
   5. Buttons
   ------------------------------------------------------------------------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  border: 1px solid transparent;
  border-radius: var(--radius-md);
  font-family: var(--font-sans);
  font-size: var(--text-sm);
  font-weight: var(--weight-semi);
  line-height: 1;
  text-decoration: none;
  cursor: pointer;
  white-space: nowrap;
  transition: all var(--transition-fast);
}
.btn:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

.btn-primary {
  background-color: var(--color-accent);
  color: var(--color-accent-text);
  border-color: var(--color-accent);
}
.btn-primary:hover {
  background-color: var(--color-accent-hover);
  border-color: var(--color-accent-hover);
  color: var(--color-accent-text);
  box-shadow: var(--shadow-md);
  transform: translateY(-1px);
}
.btn-primary:active {
  transform: translateY(0);
}

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

.btn-ghost {
  background: transparent;
  color: var(--color-text-muted);
  border-color: transparent;
}
.btn-ghost:hover {
  background-color: var(--color-card-hover);
  color: var(--color-text);
}

.btn-sm {
  padding: var(--space-2) var(--space-4);
  font-size: var(--text-xs);
}
.btn-lg {
  padding: var(--space-4) var(--space-8);
  font-size: var(--text-base);
  border-radius: var(--radius-lg);
}


/* -------------------------------------------------------------------------
   6. Section
   ------------------------------------------------------------------------- */

.section {
  padding: var(--space-20) 0;
}

.section-sm {
  padding: var(--space-12) 0;
}

.section-alt {
  background-color: var(--color-bg-alt);
}

.section-title {
  font-size: var(--text-3xl);
  font-weight: var(--weight-extra);
  text-align: center;
  margin-bottom: var(--space-2);
}

.section-subtitle {
  font-size: var(--text-lg);
  color: var(--color-text-muted);
  text-align: center;
  max-width: 640px;
  margin-inline: auto;
  margin-bottom: var(--space-12);
}

@media (min-width: 768px) {
  .section-title {
    font-size: var(--text-4xl);
  }
}


/* -------------------------------------------------------------------------
   7. Hero
   ------------------------------------------------------------------------- */

.hero {
  padding: var(--space-24) 0 var(--space-20);
  text-align: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-1) var(--space-4);
  margin-bottom: var(--space-6);
  border-radius: var(--radius-full);
  background-color: var(--color-accent-light);
  color: var(--color-accent);
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
}

.hero h1 {
  font-size: var(--text-4xl);
  font-weight: var(--weight-extra);
  line-height: 1.15;
  max-width: 800px;
  margin-inline: auto;
  margin-bottom: var(--space-6);
}

.hero-gradient {
  background: linear-gradient(135deg, var(--color-accent) 0%, #a855f7 50%, #ec4899 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero p {
  font-size: var(--text-lg);
  color: var(--color-text-muted);
  max-width: 560px;
  margin-inline: auto;
  margin-bottom: var(--space-8);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: var(--space-4);
}

@media (min-width: 768px) {
  .hero {
    padding: var(--space-24) 0;
  }
  .hero h1 {
    font-size: var(--text-5xl);
  }
  .hero p {
    font-size: var(--text-xl);
  }
}


/* -------------------------------------------------------------------------
   8. Cards
   ------------------------------------------------------------------------- */

.card {
  background-color: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  padding: var(--space-6);
  transition: box-shadow var(--transition-base),
              transform var(--transition-base),
              border-color var(--transition-base),
              background-color var(--transition-theme);
}
.card:hover {
  box-shadow: var(--shadow-card-hover);
  border-color: var(--color-accent);
}


/* -------------------------------------------------------------------------
   9. Features Grid
   ------------------------------------------------------------------------- */

.features-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-6);
}

@media (min-width: 768px) {
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}
@media (min-width: 1024px) {
  .features-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.feature-card {
  background-color: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
  box-shadow: var(--shadow-card);
  transition: box-shadow var(--transition-base),
              transform var(--transition-base),
              border-color var(--transition-base),
              background-color var(--transition-theme);
}
.feature-card:hover {
  box-shadow: var(--shadow-card-hover);
  transform: translateY(-4px);
  border-color: var(--color-accent);
}

.feature-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  margin-bottom: var(--space-5);
  border-radius: var(--radius-lg);
  background-color: var(--color-accent-light);
  color: var(--color-accent);
  font-size: var(--text-2xl);
}

.feature-card h3 {
  font-size: var(--text-lg);
  font-weight: var(--weight-semi);
  margin-bottom: var(--space-3);
}

.feature-card p {
  color: var(--color-text-muted);
  font-size: var(--text-sm);
  line-height: var(--leading-relaxed);
}


/* -------------------------------------------------------------------------
   10. Blog Card
   ------------------------------------------------------------------------- */

.blog-card {
  background-color: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  box-shadow: var(--shadow-card);
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  transition: box-shadow var(--transition-base),
              transform var(--transition-base),
              border-color var(--transition-base),
              background-color var(--transition-theme);
}
.blog-card:hover {
  box-shadow: var(--shadow-card-hover);
  transform: translateY(-2px);
  border-color: var(--color-accent);
}

.blog-card-meta {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

.blog-card h3 {
  font-size: var(--text-xl);
  font-weight: var(--weight-semi);
}
.blog-card h3 a {
  color: var(--color-text);
  text-decoration: none;
}
.blog-card h3 a:hover {
  color: var(--color-accent);
}

.blog-card p {
  color: var(--color-text-secondary);
  font-size: var(--text-sm);
  line-height: var(--leading-relaxed);
  flex: 1;
}

.blog-card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}


/* -------------------------------------------------------------------------
   11. Tag
   ------------------------------------------------------------------------- */

.tag {
  display: inline-flex;
  align-items: center;
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-full);
  background-color: var(--color-tag-bg);
  color: var(--color-tag-text);
  border: 1px solid var(--color-tag-border);
  font-size: var(--text-xs);
  font-weight: var(--weight-medium);
  line-height: 1.4;
  white-space: nowrap;
  transition: background-color var(--transition-fast),
              color var(--transition-fast);
}
a.tag:hover {
  background-color: var(--color-accent);
  color: var(--color-accent-text);
  border-color: var(--color-accent);
}


/* -------------------------------------------------------------------------
   12. Sidebar & TOC
   ------------------------------------------------------------------------- */

.docs-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-8);
}

@media (min-width: 768px) {
  .docs-layout {
    grid-template-columns: 240px 1fr;
  }
}

@media (min-width: 1024px) {
  .docs-layout {
    grid-template-columns: 260px 1fr 200px;
  }
}

.sidebar {
  position: sticky;
  top: calc(var(--nav-height) + var(--space-6));
  max-height: calc(100vh - var(--nav-height) - var(--space-12));
  overflow-y: auto;
  padding-right: var(--space-4);
}

.sidebar-group {
  margin-bottom: var(--space-6);
}

.sidebar-group h4 {
  font-size: var(--text-xs);
  font-weight: var(--weight-semi);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-text-muted);
  margin-bottom: var(--space-3);
  padding-left: var(--space-3);
}

.sidebar a {
  display: block;
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-md);
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  text-decoration: none;
  transition: color var(--transition-fast),
              background-color var(--transition-fast);
}
.sidebar a:hover {
  color: var(--color-text);
  background-color: var(--color-card-hover);
}
.sidebar a.active {
  color: var(--color-accent);
  background-color: var(--color-accent-light);
  font-weight: var(--weight-medium);
}

.toc {
  position: sticky;
  top: calc(var(--nav-height) + var(--space-6));
  max-height: calc(100vh - var(--nav-height) - var(--space-12));
  overflow-y: auto;
  font-size: var(--text-sm);
}

.toc h4 {
  font-size: var(--text-xs);
  font-weight: var(--weight-semi);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-text-muted);
  margin-bottom: var(--space-3);
}

.toc a {
  display: block;
  padding: var(--space-1) 0;
  color: var(--color-text-muted);
  text-decoration: none;
  border-left: 2px solid transparent;
  padding-left: var(--space-3);
  font-size: var(--text-sm);
  transition: color var(--transition-fast),
              border-color var(--transition-fast);
}
.toc a:hover {
  color: var(--color-text);
  border-left-color: var(--color-border);
}
.toc a.active {
  color: var(--color-accent);
  border-left-color: var(--color-accent);
}

@media (max-width: 767px) {
  .sidebar {
    position: static;
    max-height: none;
    padding-right: 0;
    margin-bottom: var(--space-6);
    padding-bottom: var(--space-4);
    border-bottom: 1px solid var(--color-border);
  }
  .toc {
    display: none;
  }
}


/* -------------------------------------------------------------------------
   13. Prose (Markdown content)
   ------------------------------------------------------------------------- */

.prose {
  max-width: 72ch;
  font-size: var(--text-base);
  line-height: var(--leading-relaxed);
  color: var(--color-text-secondary);
}

.prose > * + * {
  margin-top: var(--space-5);
}

.prose h1 {
  font-size: var(--text-4xl);
  margin-top: var(--space-12);
  margin-bottom: var(--space-4);
}
.prose h2 {
  font-size: var(--text-3xl);
  margin-top: var(--space-10);
  margin-bottom: var(--space-4);
  padding-bottom: var(--space-3);
  border-bottom: 1px solid var(--color-border);
}
.prose h3 {
  font-size: var(--text-2xl);
  margin-top: var(--space-8);
  margin-bottom: var(--space-3);
}
.prose h4 {
  font-size: var(--text-xl);
  margin-top: var(--space-6);
  margin-bottom: var(--space-2);
}

.prose p {
  margin-bottom: var(--space-4);
}

.prose strong {
  font-weight: var(--weight-semi);
  color: var(--color-text);
}

.prose a {
  color: var(--color-accent);
  text-decoration: underline;
  text-underline-offset: 2px;
}
.prose a:hover {
  color: var(--color-accent-hover);
}

.prose ul,
.prose ol {
  padding-left: var(--space-6);
  margin-bottom: var(--space-4);
}
.prose li {
  margin-bottom: var(--space-2);
}
.prose li::marker {
  color: var(--color-text-muted);
}

.prose blockquote {
  border-left: 3px solid var(--color-accent);
  padding: var(--space-4) var(--space-6);
  margin: var(--space-6) 0;
  background-color: var(--color-accent-light);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  color: var(--color-text-secondary);
  font-style: italic;
}

.prose code {
  font-family: var(--font-mono);
  font-size: 0.875em;
  padding: 0.15em 0.4em;
  border-radius: var(--radius-sm);
  background-color: var(--color-code-inline-bg);
  color: var(--color-code-inline-text);
}

.prose pre {
  background-color: var(--color-code-bg);
  color: var(--color-code-text);
  padding: var(--space-6);
  border-radius: var(--radius-lg);
  overflow-x: auto;
  font-size: var(--text-sm);
  line-height: 1.7;
  margin: var(--space-6) 0;
  border: 1px solid var(--color-border);
}
.prose pre code {
  padding: 0;
  background: none;
  color: inherit;
  font-size: inherit;
  border-radius: 0;
}

.prose table {
  width: 100%;
  border-collapse: collapse;
  margin: var(--space-6) 0;
  font-size: var(--text-sm);
}
.prose th,
.prose td {
  padding: var(--space-3) var(--space-4);
  border: 1px solid var(--color-border);
  text-align: left;
}
.prose th {
  background-color: var(--color-bg-alt);
  font-weight: var(--weight-semi);
  color: var(--color-text);
}
.prose td {
  color: var(--color-text-secondary);
}
.prose tr:nth-child(even) td {
  background-color: var(--color-bg-alt);
}

.prose img {
  border-radius: var(--radius-lg);
  margin: var(--space-6) 0;
}

.prose hr {
  border: none;
  border-top: 1px solid var(--color-border);
  margin: var(--space-10) 0;
}


/* -------------------------------------------------------------------------
   14. Forms
   ------------------------------------------------------------------------- */

.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  margin-bottom: var(--space-5);
}

.form-label {
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  color: var(--color-text);
}

.form-input {
  padding: var(--space-3) var(--space-4);
  border: 1px solid var(--color-input-border);
  border-radius: var(--radius-md);
  background-color: var(--color-input-bg);
  color: var(--color-text);
  font-family: var(--font-sans);
  font-size: var(--text-base);
  line-height: 1.5;
  transition: border-color var(--transition-fast),
              box-shadow var(--transition-fast),
              background-color var(--transition-theme);
}
.form-input::placeholder {
  color: var(--color-input-placeholder);
}
.form-input:focus {
  outline: none;
  border-color: var(--color-input-focus);
  box-shadow: 0 0 0 3px rgba(79,70,229,0.15);
}

.form-hint {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
}

textarea.form-input {
  min-height: 120px;
  resize: vertical;
}

select.form-input {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%2364748b' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right var(--space-4) center;
  padding-right: var(--space-10);
}


/* -------------------------------------------------------------------------
   15. Alerts
   ------------------------------------------------------------------------- */

.alert {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  padding: var(--space-4) var(--space-5);
  border-radius: var(--radius-md);
  border: 1px solid;
  font-size: var(--text-sm);
  line-height: var(--leading-normal);
}

.alert-success {
  background-color: var(--color-success-bg);
  border-color: var(--color-success-border);
  color: var(--color-success);
}
.alert-error {
  background-color: var(--color-error-bg);
  border-color: var(--color-error-border);
  color: var(--color-error);
}
.alert-warning {
  background-color: var(--color-warning-bg);
  border-color: var(--color-warning-border);
  color: var(--color-warning);
}
.alert-info {
  background-color: var(--color-info-bg);
  border-color: var(--color-info-border);
  color: var(--color-info);
}


/* -------------------------------------------------------------------------
   16. Breadcrumb
   ------------------------------------------------------------------------- */

.breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-2);
  padding: var(--space-4) 0;
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  list-style: none;
}

.breadcrumb li {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
}
.breadcrumb li + li::before {
  content: "/";
  color: var(--color-text-muted);
  opacity: 0.5;
}

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

.breadcrumb-current {
  color: var(--color-text);
  font-weight: var(--weight-medium);
}


/* -------------------------------------------------------------------------
   17. Pagination
   ------------------------------------------------------------------------- */

.pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-8) 0;
}

.pagination a,
.pagination span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 40px;
  height: 40px;
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-md);
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  text-decoration: none;
  transition: all var(--transition-fast);
}

.pagination a {
  color: var(--color-text-muted);
  border: 1px solid var(--color-border);
}
.pagination a:hover {
  background-color: var(--color-card-hover);
  color: var(--color-text);
  border-color: var(--color-text-muted);
}

.pagination .active {
  background-color: var(--color-accent);
  color: var(--color-accent-text);
  border: 1px solid var(--color-accent);
}

.pagination .disabled {
  color: var(--color-text-muted);
  opacity: 0.4;
  pointer-events: none;
  border: 1px solid var(--color-border);
}


/* -------------------------------------------------------------------------
   18. Pricing
   ------------------------------------------------------------------------- */

.pricing-table {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-6);
  align-items: start;
}

@media (min-width: 768px) {
  .pricing-table {
    grid-template-columns: repeat(2, 1fr);
  }
}
@media (min-width: 1024px) {
  .pricing-table {
    grid-template-columns: repeat(3, 1fr);
  }
}

.pricing-card {
  background-color: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-card);
  transition: box-shadow var(--transition-base),
              transform var(--transition-base),
              border-color var(--transition-base),
              background-color var(--transition-theme);
}
.pricing-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}

.pricing-card.featured {
  border-color: var(--color-accent);
  box-shadow: var(--shadow-lg), 0 0 0 1px var(--color-accent);
  position: relative;
}
.pricing-card.featured::before {
  content: "Popular";
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  padding: var(--space-1) var(--space-4);
  background-color: var(--color-accent);
  color: var(--color-accent-text);
  font-size: var(--text-xs);
  font-weight: var(--weight-semi);
  border-radius: var(--radius-full);
}

.pricing-header {
  text-align: center;
  margin-bottom: var(--space-6);
  padding-bottom: var(--space-6);
  border-bottom: 1px solid var(--color-border);
}

.pricing-header h3 {
  font-size: var(--text-lg);
  font-weight: var(--weight-semi);
  margin-bottom: var(--space-2);
}

.pricing-header p {
  color: var(--color-text-muted);
  font-size: var(--text-sm);
  margin-bottom: var(--space-4);
}

.pricing-price {
  font-size: var(--text-4xl);
  font-weight: var(--weight-extra);
  color: var(--color-text);
}
.pricing-price span {
  font-size: var(--text-base);
  font-weight: var(--weight-normal);
  color: var(--color-text-muted);
}

.pricing-features {
  list-style: none;
  padding: 0;
  margin-bottom: var(--space-8);
  flex: 1;
}
.pricing-features li {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) 0;
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  border-bottom: 1px solid var(--color-border-subtle);
}
.pricing-features li::before {
  content: "\2713";
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  border-radius: var(--radius-full);
  background-color: var(--color-success-bg);
  color: var(--color-success);
  font-size: var(--text-xs);
  font-weight: var(--weight-bold);
}

.pricing-card .btn {
  width: 100%;
  justify-content: center;
}


/* -------------------------------------------------------------------------
   19. Testimonial
   ------------------------------------------------------------------------- */

.testimonial {
  background-color: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
  box-shadow: var(--shadow-card);
  transition: background-color var(--transition-theme),
              border-color var(--transition-theme);
}

.testimonial blockquote {
  font-size: var(--text-lg);
  line-height: var(--leading-relaxed);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-6);
  font-style: italic;
  position: relative;
  padding-left: var(--space-5);
  border-left: 3px solid var(--color-accent);
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.testimonial-avatar {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-full);
  background-color: var(--color-accent-light);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-accent);
  font-weight: var(--weight-bold);
  font-size: var(--text-lg);
  flex-shrink: 0;
}

.testimonial-name {
  font-weight: var(--weight-semi);
  font-size: var(--text-sm);
  color: var(--color-text);
}
.testimonial-role {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
}


/* -------------------------------------------------------------------------
   20. Steps (How it works)
   ------------------------------------------------------------------------- */

.steps {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-6);
  counter-reset: step-counter;
}

@media (min-width: 768px) {
  .steps {
    grid-template-columns: repeat(2, 1fr);
  }
}
@media (min-width: 1024px) {
  .steps {
    grid-template-columns: repeat(3, 1fr);
  }
}

.step-card {
  background-color: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
  box-shadow: var(--shadow-card);
  counter-increment: step-counter;
  position: relative;
  transition: box-shadow var(--transition-base),
              transform var(--transition-base),
              background-color var(--transition-theme),
              border-color var(--transition-base);
}
.step-card:hover {
  box-shadow: var(--shadow-card-hover);
  transform: translateY(-2px);
  border-color: var(--color-accent);
}

.step-number {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  margin-bottom: var(--space-5);
  border-radius: var(--radius-full);
  background-color: var(--color-accent);
  color: var(--color-accent-text);
  font-size: var(--text-lg);
  font-weight: var(--weight-bold);
}

.step-card h3 {
  font-size: var(--text-lg);
  font-weight: var(--weight-semi);
  margin-bottom: var(--space-3);
}

.step-card p {
  color: var(--color-text-muted);
  font-size: var(--text-sm);
  line-height: var(--leading-relaxed);
}


/* -------------------------------------------------------------------------
   21. Footer
   ------------------------------------------------------------------------- */

.footer {
  background-color: var(--color-footer-bg);
  color: var(--color-footer-text);
  padding: var(--space-16) 0 var(--space-8);
  margin-top: auto;
  transition: background-color var(--transition-theme);
}

.footer-inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-8);
}

@media (min-width: 768px) {
  .footer-inner {
    grid-template-columns: 2fr repeat(3, 1fr);
  }
}

.footer-col h4 {
  color: var(--color-footer-heading);
  font-size: var(--text-sm);
  font-weight: var(--weight-semi);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: var(--space-4);
}

.footer-col p {
  font-size: var(--text-sm);
  color: var(--color-footer-text);
  line-height: var(--leading-relaxed);
  max-width: 280px;
}

.footer-col a {
  display: block;
  padding: var(--space-1) 0;
  font-size: var(--text-sm);
  color: var(--color-footer-link);
  text-decoration: none;
  transition: color var(--transition-fast);
}
.footer-col a:hover {
  color: var(--color-footer-link-hover);
}

.footer-bottom {
  grid-column: 1 / -1;
  padding-top: var(--space-8);
  margin-top: var(--space-4);
  border-top: 1px solid rgba(255,255,255,0.08);
}
.footer-bottom p {
  font-size: var(--text-sm);
  color: var(--color-footer-link);
  text-align: center;
}


/* -------------------------------------------------------------------------
   22. Utility classes
   ------------------------------------------------------------------------- */

.text-center { text-align: center; }
.text-left   { text-align: left; }
.text-right  { text-align: right; }

.text-muted  { color: var(--color-text-muted); }
.text-accent { color: var(--color-accent); }

.mt-0  { margin-top: 0; }
.mt-4  { margin-top: var(--space-4); }
.mt-6  { margin-top: var(--space-6); }
.mt-8  { margin-top: var(--space-8); }
.mt-12 { margin-top: var(--space-12); }

.mb-0  { margin-bottom: 0; }
.mb-4  { margin-bottom: var(--space-4); }
.mb-6  { margin-bottom: var(--space-6); }
.mb-8  { margin-bottom: var(--space-8); }
.mb-12 { margin-bottom: var(--space-12); }

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.justify-center { justify-content: center; }
.gap-4 { gap: var(--space-4); }
.gap-6 { gap: var(--space-6); }

.hidden { display: none; }

@media (max-width: 767px) {
  .hide-mobile { display: none !important; }
}
@media (min-width: 768px) {
  .hide-desktop { display: none !important; }
}


/* -------------------------------------------------------------------------
   23. Animations (respect reduced-motion)
   ------------------------------------------------------------------------- */

@keyframes fade-in {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: translateY(0); }
}

.animate-fade-in {
  animation: fade-in 0.5s ease both;
}


/* -------------------------------------------------------------------------
   24. Page Header
   ------------------------------------------------------------------------- */

.page-header {
  padding: var(--space-16) 0 var(--space-10);
  text-align: center;
  background-color: var(--color-bg-alt);
  border-bottom: 1px solid var(--color-border);
}
.page-header h1 {
  font-size: var(--text-4xl);
  font-weight: var(--weight-extra);
  margin-bottom: var(--space-3);
}
.page-header p {
  font-size: var(--text-lg);
  color: var(--color-text-muted);
  max-width: 560px;
  margin-inline: auto;
}


/* -------------------------------------------------------------------------
   25. Content Sections
   ------------------------------------------------------------------------- */

.content-section {
  padding: var(--space-16) 0;
}

.content-narrow {
  max-width: 72ch;
  margin-inline: auto;
}

.markdown-body {
  max-width: 72ch;
  font-size: var(--text-base);
  line-height: var(--leading-relaxed);
  color: var(--color-text-secondary);
}
.markdown-body > * + * { margin-top: var(--space-5); }
.markdown-body h1 { font-size: var(--text-4xl); margin-top: var(--space-12); margin-bottom: var(--space-4); color: var(--color-text); font-weight: var(--weight-extra); }
.markdown-body h2 { font-size: var(--text-3xl); margin-top: var(--space-10); margin-bottom: var(--space-4); padding-bottom: var(--space-3); border-bottom: 1px solid var(--color-border); color: var(--color-text); font-weight: var(--weight-bold); }
.markdown-body h3 { font-size: var(--text-2xl); margin-top: var(--space-8); margin-bottom: var(--space-3); color: var(--color-text); font-weight: var(--weight-semi); }
.markdown-body p { margin-bottom: var(--space-4); }
.markdown-body strong { font-weight: var(--weight-semi); color: var(--color-text); }
.markdown-body a { color: var(--color-accent); text-decoration: underline; text-underline-offset: 2px; }
.markdown-body a:hover { color: var(--color-accent-hover); }
.markdown-body ul, .markdown-body ol { padding-left: var(--space-6); margin-bottom: var(--space-4); }
.markdown-body li { margin-bottom: var(--space-2); }
.markdown-body code { font-family: var(--font-mono); font-size: 0.875em; padding: 0.15em 0.4em; border-radius: var(--radius-sm); background-color: var(--color-code-inline-bg); color: var(--color-code-inline-text); }
.markdown-body pre { background-color: var(--color-code-bg); color: var(--color-code-text); padding: var(--space-6); border-radius: var(--radius-lg); overflow-x: auto; font-size: var(--text-sm); margin: var(--space-6) 0; border: 1px solid var(--color-border); }
.markdown-body pre code { padding: 0; background: none; color: inherit; font-size: inherit; }
.markdown-body hr { border: none; border-top: 1px solid var(--color-border); margin: var(--space-10) 0; }

.accent {
  color: var(--color-accent);
}

.hero-subtitle {
  font-size: var(--text-lg);
  color: var(--color-text-muted);
  max-width: 560px;
  margin-inline: auto;
  margin-bottom: var(--space-8);
}

.hero-note {
  margin-top: var(--space-4);
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}


/* -------------------------------------------------------------------------
   26. How It Works + FAQ + CTA
   ------------------------------------------------------------------------- */

.how-it-works,
.faq,
.pricing-teaser,
.pricing-full {
  padding: var(--space-20) 0;
}

.how-it-works { background-color: var(--color-bg-alt); }

.steps-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-8);
  margin-top: var(--space-10);
}
@media (min-width: 768px) {
  .steps-grid { grid-template-columns: repeat(3, 1fr); }
}

.step {
  text-align: center;
  padding: var(--space-6);
}
.step-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border-radius: var(--radius-full);
  background-color: var(--color-accent);
  color: #fff;
  font-size: var(--text-xl);
  font-weight: var(--weight-bold);
  margin-bottom: var(--space-4);
}
.step h3 {
  font-size: var(--text-lg);
  font-weight: var(--weight-semi);
  margin-bottom: var(--space-3);
}
.step p {
  color: var(--color-text-muted);
  font-size: var(--text-sm);
  line-height: var(--leading-relaxed);
}

.faq-list {
  max-width: 720px;
  margin-inline: auto;
}
.faq-item {
  border-bottom: 1px solid var(--color-border);
  padding: var(--space-5) 0;
}
.faq-item summary {
  font-weight: var(--weight-semi);
  cursor: pointer;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.faq-item summary::after {
  content: "+";
  font-size: var(--text-xl);
  color: var(--color-text-muted);
  transition: transform var(--transition-fast);
}
.faq-item[open] summary::after {
  content: "-";
}
.faq-item p {
  margin-top: var(--space-3);
  color: var(--color-text-muted);
  line-height: var(--leading-relaxed);
  font-size: var(--text-sm);
}

.cta-section {
  padding: var(--space-20) 0;
  text-align: center;
  background: linear-gradient(135deg, var(--color-accent) 0%, #7c3aed 100%);
  color: #fff;
}
.cta-section h2 {
  font-size: var(--text-3xl);
  font-weight: var(--weight-extra);
  margin-bottom: var(--space-4);
}
.cta-section p {
  font-size: var(--text-lg);
  opacity: 0.9;
  margin-bottom: var(--space-8);
}
.cta-section .btn-primary {
  background-color: #fff;
  color: var(--color-accent);
}
.cta-section .btn-primary:hover {
  background-color: #f1f5f9;
}


/* -------------------------------------------------------------------------
   27. Pricing Cards (landing + full page)
   ------------------------------------------------------------------------- */

.pricing-cards {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-8);
  max-width: 800px;
  margin-inline: auto;
}
@media (min-width: 768px) {
  .pricing-cards { grid-template-columns: repeat(2, 1fr); }
}

.pricing-card .price {
  font-size: var(--text-4xl);
  font-weight: var(--weight-extra);
  margin: var(--space-4) 0;
}
.pricing-card .price span {
  font-size: var(--text-base);
  font-weight: var(--weight-normal);
  color: var(--color-text-muted);
}
.pricing-card .badge {
  display: inline-block;
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-full);
  background-color: var(--color-accent);
  color: #fff;
  font-size: var(--text-xs);
  font-weight: var(--weight-semi);
  margin-bottom: var(--space-2);
}
.pricing-card .plan-desc {
  color: var(--color-text-muted);
  font-size: var(--text-sm);
  margin-bottom: var(--space-6);
}

.comparison-table-wrapper {
  margin-top: var(--space-16);
}
.comparison-table {
  width: 100%;
  border-collapse: collapse;
  font-size: var(--text-sm);
}
.comparison-table th,
.comparison-table td {
  padding: var(--space-3) var(--space-4);
  border: 1px solid var(--color-border);
  text-align: center;
}
.comparison-table th {
  background-color: var(--color-bg-alt);
  font-weight: var(--weight-semi);
  color: var(--color-text);
}
.comparison-table td:first-child {
  text-align: left;
  font-weight: var(--weight-medium);
}
.comparison-table .check { color: var(--color-success); font-weight: var(--weight-bold); }
.comparison-table .cross { color: var(--color-text-muted); }


/* -------------------------------------------------------------------------
   28. Blog Pages
   ------------------------------------------------------------------------- */

.blog-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
}

.blog-date {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

.blog-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.blog-excerpt {
  color: var(--color-text-muted);
  font-size: var(--text-sm);
  line-height: var(--leading-relaxed);
}

.read-more {
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  color: var(--color-accent);
  text-decoration: none;
}
.read-more:hover {
  text-decoration: underline;
}

.post-header {
  padding: var(--space-16) 0 var(--space-8);
  border-bottom: 1px solid var(--color-border);
  margin-bottom: var(--space-10);
}
.post-meta {
  display: flex;
  gap: var(--space-4);
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  margin-top: var(--space-4);
}

.back-link {
  display: inline-block;
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  text-decoration: none;
  margin-bottom: var(--space-4);
}
.back-link:hover { color: var(--color-accent); }

.pagination {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: var(--space-4);
  margin-top: var(--space-10);
}
.page-info {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

.empty-state {
  text-align: center;
  padding: var(--space-16) 0;
  color: var(--color-text-muted);
}


/* -------------------------------------------------------------------------
   29. Docs Pages
   ------------------------------------------------------------------------- */

.docs-sidebar {
  position: sticky;
  top: calc(var(--nav-height) + var(--space-6));
  max-height: calc(100vh - var(--nav-height) - var(--space-12));
  overflow-y: auto;
  padding-right: var(--space-4);
}

.docs-sidebar .sidebar-section {
  margin-bottom: var(--space-6);
}
.docs-sidebar h3 {
  font-size: var(--text-xs);
  font-weight: var(--weight-semi);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-text-muted);
  margin-bottom: var(--space-3);
}
.docs-sidebar ul {
  list-style: none;
  padding: 0;
}
.docs-sidebar a {
  display: block;
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-md);
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  text-decoration: none;
  transition: color var(--transition-fast), background-color var(--transition-fast);
}
.docs-sidebar a:hover {
  color: var(--color-text);
  background-color: var(--color-card-hover);
}
.docs-sidebar a.active {
  color: var(--color-accent);
  background-color: var(--color-accent-light);
  font-weight: var(--weight-medium);
}

.docs-content {
  min-width: 0;
  padding: var(--space-8) 0;
}

.docs-breadcrumb {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  margin-bottom: var(--space-6);
}
.docs-breadcrumb a {
  color: var(--color-accent);
  text-decoration: none;
}
.docs-breadcrumb a:hover { text-decoration: underline; }

.docs-nav-footer {
  display: flex;
  justify-content: space-between;
  margin-top: var(--space-12);
  padding-top: var(--space-6);
  border-top: 1px solid var(--color-border);
}
.docs-nav-footer a {
  color: var(--color-accent);
  text-decoration: none;
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
}
.docs-nav-footer a:hover { text-decoration: underline; }

.lang-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  padding: 0.4rem 0.8rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  color: var(--color-text);
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  text-decoration: none;
  transition: border-color var(--transition-fast), background var(--transition-fast);
  white-space: nowrap;
}
.lang-btn:hover {
  border-color: var(--color-accent);
  background: var(--color-accent-subtle, rgba(99, 102, 241, 0.1));
  text-decoration: none;
}
.sidebar-lang {
  margin-bottom: var(--space-4);
  padding-bottom: var(--space-3);
  border-bottom: 1px solid var(--color-border);
}
.docs-lang-toggle {
  flex-shrink: 0;
}

.docs-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-6);
}
@media (min-width: 768px) {
  .docs-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 1024px) {
  .docs-grid { grid-template-columns: repeat(3, 1fr); }
}

.docs-section-card {
  background-color: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  box-shadow: var(--shadow-card);
  transition: box-shadow var(--transition-base), border-color var(--transition-base);
}
.docs-section-card:hover {
  box-shadow: var(--shadow-card-hover);
  border-color: var(--color-accent);
}
.docs-section-card h2 {
  font-size: var(--text-lg);
  font-weight: var(--weight-semi);
  margin-bottom: var(--space-4);
}
.docs-section-card ul {
  list-style: none;
  padding: 0;
}
.docs-section-card li { margin-bottom: var(--space-2); }
.docs-section-card a {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  text-decoration: none;
}
.docs-section-card a:hover { color: var(--color-accent); }

@media (max-width: 767px) {
  .docs-sidebar {
    position: static;
    max-height: none;
    padding-right: 0;
    margin-bottom: var(--space-6);
    padding-bottom: var(--space-4);
    border-bottom: 1px solid var(--color-border);
  }
}


/* -------------------------------------------------------------------------
   30. Features section padding
   ------------------------------------------------------------------------- */

.features {
  padding: var(--space-20) 0;
}


/* -------------------------------------------------------------------------
   31. Auth Pages
   ------------------------------------------------------------------------- */

.auth-section {
  padding: var(--space-16) 0;
  min-height: 60vh;
  display: flex;
  align-items: center;
}

.auth-card {
  max-width: 440px;
  margin-inline: auto;
  background-color: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-10);
  box-shadow: var(--shadow-card);
}

.auth-card h1 {
  font-size: var(--text-2xl);
  font-weight: var(--weight-bold);
  text-align: center;
  margin-bottom: var(--space-2);
}

.auth-subtitle {
  text-align: center;
  color: var(--color-text-muted);
  font-size: var(--text-sm);
  margin-bottom: var(--space-8);
}

.auth-telegram {
  display: flex;
  justify-content: center;
  margin-bottom: var(--space-6);
}

.auth-divider {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  margin: var(--space-6) 0;
  color: var(--color-text-muted);
  font-size: var(--text-sm);
}
.auth-divider::before,
.auth-divider::after {
  content: "";
  flex: 1;
  height: 1px;
  background-color: var(--color-border);
}

.auth-form {
  margin-bottom: var(--space-6);
}

.btn-block {
  display: block;
  width: 100%;
  text-align: center;
}

.auth-links {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-3);
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}
.auth-links a {
  color: var(--color-accent);
  text-decoration: none;
}
.auth-links a:hover {
  text-decoration: underline;
}


/* -------------------------------------------------------------------------
   32. Dashboard
   ------------------------------------------------------------------------- */

.dashboard-header {
  padding: var(--space-10) 0 var(--space-6);
  border-bottom: 1px solid var(--color-border);
}
.dashboard-header h1 {
  font-size: var(--text-2xl);
  font-weight: var(--weight-bold);
}
.dashboard-header p {
  color: var(--color-text-muted);
  font-size: var(--text-sm);
  margin-top: var(--space-2);
}

.dashboard-content {
  padding: var(--space-10) 0;
}

.dashboard-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-6);
}
@media (min-width: 768px) {
  .dashboard-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 1024px) {
  .dashboard-grid { grid-template-columns: repeat(3, 1fr); }
}

.stat-card {
  background-color: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  box-shadow: var(--shadow-card);
}
.stat-card h3 {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  font-weight: var(--weight-medium);
  margin-bottom: var(--space-2);
}
.stat-card .stat-value {
  font-size: var(--text-3xl);
  font-weight: var(--weight-extra);
  color: var(--color-text);
}

.settings-form {
  max-width: 560px;
}

.settings-section {
  padding: var(--space-8) 0;
  border-bottom: 1px solid var(--color-border);
}
.settings-section:last-child { border-bottom: none; }
.settings-section h2 {
  font-size: var(--text-lg);
  font-weight: var(--weight-semi);
  margin-bottom: var(--space-6);
}


/* -------------------------------------------------------------------------
   33. Admin Panel
   ------------------------------------------------------------------------- */

.admin-table {
  width: 100%;
  border-collapse: collapse;
  font-size: var(--text-sm);
}
.admin-table th,
.admin-table td {
  padding: var(--space-3) var(--space-4);
  border-bottom: 1px solid var(--color-border);
  text-align: left;
}
.admin-table th {
  font-weight: var(--weight-semi);
  color: var(--color-text-muted);
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.admin-table tr:hover td {
  background-color: var(--color-card-hover);
}

.admin-actions {
  display: flex;
  gap: var(--space-2);
}

.status-badge {
  display: inline-flex;
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-full);
  font-size: var(--text-xs);
  font-weight: var(--weight-medium);
}
.status-badge.published {
  background-color: var(--color-success-bg);
  color: var(--color-success);
  border: 1px solid var(--color-success-border);
}
.status-badge.draft {
  background-color: var(--color-warning-bg);
  color: var(--color-warning);
  border: 1px solid var(--color-warning-border);
}

.editor-form textarea.form-input {
  min-height: 400px;
  font-family: var(--font-mono);
  font-size: var(--text-sm);
}