/* ====================================================================
   ExaMeld — Dark Developer Theme
   ==================================================================== */

/* ====================================================================
   1. CSS VARIABLES
   ==================================================================== */

:root {
  --bg-primary: #0a0a0f;
  --bg-secondary: #12121a;
  --bg-tertiary: #1a1a2e;
  --bg-hover: #1f1f35;

  --accent: #6366f1;
  --accent-secondary: #22d3ee;
  --accent-tertiary: #8b5cf6;

  --text-primary: #e2e8f0;
  --text-secondary: #94a3b8;
  --text-tertiary: #64748b;

  --border: #2d2d44;
  --border-light: #3d3d54;

  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', 'Courier New', monospace;

  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-full: 9999px;

  --shadow-sm: 0 1px 2px rgba(0,0,0,0.3);
  --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.4);
  --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.5);
  --shadow-xl: 0 20px 25px -5px rgba(0,0,0,0.6);

  --glow-accent: 0 0 20px rgba(99,102,241,0.3);
  --glow-accent-strong: 0 0 30px rgba(99,102,241,0.5);

  --transition-fast: 150ms ease-in-out;
  --transition-base: 300ms ease-in-out;
}

/* ====================================================================
   2. RESET & BASE
   ==================================================================== */

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

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--text-primary);
  background-color: var(--bg-primary);
  min-height: 100vh;
  overflow-x: hidden;
}

/* ====================================================================
   3. TYPOGRAPHY
   ==================================================================== */

h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: -0.02em;
  color: var(--text-primary);
}

h1 { font-size: 3rem; margin-bottom: 1.5rem; }
h2 { font-size: 2.25rem; margin-bottom: 1.5rem; }
h3 { font-size: 1.5rem; margin-bottom: 1rem; }
h4 { font-size: 1.25rem; margin-bottom: 0.75rem; }

p {
  margin-bottom: 1rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

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

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

strong { font-weight: 600; color: var(--text-primary); }

code {
  font-family: var(--font-mono);
  font-size: 0.9em;
  background: var(--bg-secondary);
  color: var(--accent-secondary);
  padding: 0.15rem 0.4rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
}

pre {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  margin-bottom: 1.5rem;
  overflow-x: auto;
}

pre code {
  background: transparent;
  border: none;
  padding: 0;
  color: var(--text-primary);
  font-size: 0.875rem;
}

ul, ol {
  margin-bottom: 1.5rem;
  padding-left: 2rem;
}

li {
  margin-bottom: 0.5rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

li strong { color: var(--text-primary); }

table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: 1.5rem;
  font-size: 0.875rem;
}

table thead {
  background: var(--bg-secondary);
  border-bottom: 2px solid var(--border-light);
}

table thead th {
  padding: 1rem;
  text-align: left;
  font-weight: 600;
  color: var(--text-primary);
}

table tbody td {
  padding: 1rem;
  border-bottom: 1px solid var(--border);
  color: var(--text-secondary);
}

table tbody tr:hover { background: var(--bg-secondary); }

blockquote {
  border-left: 4px solid var(--accent);
  padding-left: 1.5rem;
  margin: 0 0 1.5rem 0;
  color: var(--text-secondary);
  font-style: italic;
}

/* ====================================================================
   4. NAVIGATION — nav.nav
   ==================================================================== */

nav.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 300;
  background: rgba(10, 10, 15, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  box-shadow: var(--shadow-md);
}

nav.nav.scrolled {
  background: rgba(10, 10, 15, 0.98);
}

.nav-container {
  max-width: 1400px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 2rem;
  height: 70px;
}

.nav-brand .logo {
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--text-primary);
  text-decoration: none;
  letter-spacing: -0.03em;
  background: linear-gradient(135deg, var(--accent), var(--accent-secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.nav-brand .logo:hover {
  opacity: 0.85;
}

/* Nav menu */
.nav-menu {
  display: flex;
  list-style: none;
  align-items: center;
  gap: 0.5rem;
  margin: 0;
  padding: 0;
}

.nav-item {
  position: relative;
  margin: 0;
}

.nav-link {
  display: block;
  padding: 0.5rem 1rem;
  color: var(--text-secondary);
  font-size: 0.9rem;
  font-weight: 500;
  transition: color var(--transition-fast);
}

.nav-link:hover {
  color: var(--text-primary);
}

/* Dropdown toggle */
.dropdown-toggle::after {
  content: '';
  display: inline-block;
  width: 0;
  height: 0;
  margin-left: 0.4rem;
  vertical-align: middle;
  border-top: 4px solid currentColor;
  border-right: 4px solid transparent;
  border-left: 4px solid transparent;
  transition: transform var(--transition-fast);
}

.dropdown:hover .dropdown-toggle::after {
  transform: rotate(180deg);
}

/* Dropdown menu */
.dropdown-menu {
  position: absolute;
  top: 100%;
  left: 0;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  min-width: 220px;
  list-style: none;
  padding: 0.5rem 0;
  margin: 0;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-8px);
  transition: opacity var(--transition-fast), visibility var(--transition-fast), transform var(--transition-fast);
  box-shadow: var(--shadow-lg);
  z-index: 100;
}

.dropdown:hover .dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.dropdown-menu li {
  margin: 0;
}

.dropdown-menu a {
  display: block;
  padding: 0.6rem 1.25rem;
  color: var(--text-secondary);
  font-size: 0.875rem;
  transition: all var(--transition-fast);
}

.dropdown-menu a:hover {
  background: var(--bg-tertiary);
  color: var(--accent-secondary);
  padding-left: 1.5rem;
}

/* Mobile nav toggle */
.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
  flex-direction: column;
  gap: 5px;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: all var(--transition-fast);
}

.nav-toggle.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.nav-toggle.active span:nth-child(2) { opacity: 0; }
.nav-toggle.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

/* ====================================================================
   5. BUTTONS
   ==================================================================== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.75rem;
  border-radius: var(--radius-lg);
  font-size: 0.9rem;
  font-weight: 600;
  border: none;
  cursor: pointer;
  transition: all var(--transition-base);
  text-decoration: none;
  white-space: nowrap;
  gap: 0.5rem;
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-tertiary));
  color: white;
  box-shadow: var(--glow-accent);
}

.btn-primary:hover {
  box-shadow: var(--glow-accent-strong);
  transform: translateY(-2px);
  color: white;
}

.btn-secondary {
  background: transparent;
  color: var(--accent-secondary);
  border: 2px solid var(--accent-secondary);
}

.btn-secondary:hover {
  background: rgba(34, 211, 238, 0.1);
  box-shadow: 0 0 20px rgba(34, 211, 238, 0.3);
  transform: translateY(-2px);
  color: var(--accent-secondary);
}

.btn-lg {
  padding: 1rem 2.5rem;
  font-size: 1rem;
}

/* ====================================================================
   6. HERO SECTION
   ==================================================================== */

.hero {
  margin-top: 70px;
  padding: 6rem 2rem;
  min-height: calc(100vh - 70px);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -30%;
  right: -10%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(99,102,241,0.12), transparent);
  border-radius: 50%;
  z-index: 0;
}

.hero::after {
  content: '';
  position: absolute;
  bottom: -20%;
  left: 5%;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(34,211,238,0.08), transparent);
  border-radius: 50%;
  z-index: 0;
}

.hero-content {
  text-align: center;
  max-width: 900px;
  position: relative;
  z-index: 1;
}

.hero-title {
  font-size: clamp(2.5rem, 7vw, 4.5rem);
  font-weight: 800;
  background: linear-gradient(135deg, var(--text-primary) 30%, var(--accent-secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 1.5rem;
  line-height: 1.1;
}

.hero-subtitle {
  font-size: 1.3rem;
  color: var(--text-secondary);
  margin-bottom: 2.5rem;
  line-height: 1.7;
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}

.hero-buttons {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}

/* ====================================================================
   7. REPLACES SECTION
   ==================================================================== */

.replaces-section {
  padding: 4rem 2rem;
  text-align: center;
  background: var(--bg-secondary);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.replaces-section h2 {
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--text-tertiary);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 2rem;
}

.tool-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  justify-content: center;
  max-width: 800px;
  margin: 0 auto;
}

.badge {
  display: inline-block;
  padding: 0.5rem 1.25rem;
  background: var(--bg-tertiary);
  color: var(--text-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-full);
  font-size: 0.875rem;
  font-weight: 600;
  white-space: nowrap;
  transition: all var(--transition-base);
}

.badge:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: rgba(99,102,241,0.1);
}

/* ====================================================================
   8. FEATURE GRID (homepage + features list)
   ==================================================================== */

.features {
  padding: 6rem 2rem;
  max-width: 1400px;
  margin: 0 auto;
}

.features > h2 {
  text-align: center;
  margin-bottom: 3rem;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.feature-grid-large {
  grid-template-columns: repeat(3, 1fr);
}

.feature-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: 2rem;
  transition: all var(--transition-base);
  position: relative;
  display: flex;
  flex-direction: column;
  text-decoration: none;
  color: inherit;
}

.feature-card:hover {
  background: var(--bg-tertiary);
  border-color: var(--accent);
  box-shadow: var(--glow-accent);
  transform: translateY(-4px);
  color: inherit;
}

.feature-card-large {
  padding: 2.5rem;
}

.feature-icon {
  width: 56px;
  height: 56px;
  background: var(--bg-tertiary);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.25rem;
  border: 1px solid var(--border-light);
  transition: all var(--transition-base);
  color: var(--accent);
}

.feature-card:hover .feature-icon {
  background: linear-gradient(135deg, var(--accent), var(--accent-secondary));
  border-color: var(--accent);
  color: white;
}

.feature-card h3 {
  color: var(--text-primary);
  margin-bottom: 0.75rem;
  font-size: 1.25rem;
}

.feature-card p {
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 1rem;
  flex: 1;
}

.feature-link {
  color: var(--accent);
  font-size: 0.875rem;
  font-weight: 600;
  transition: color var(--transition-fast);
}

.feature-card:hover .feature-link {
  color: var(--accent-secondary);
}

/* ====================================================================
   9. SCALE / STATS SECTION
   ==================================================================== */

.scale-section {
  padding: 6rem 2rem;
  text-align: center;
  max-width: 1200px;
  margin: 0 auto;
}

.scale-section > h2 {
  margin-bottom: 3rem;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.stat-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: 2.5rem 2rem;
  transition: all var(--transition-base);
}

.stat-card:hover {
  border-color: var(--accent);
  box-shadow: var(--glow-accent);
  transform: translateY(-2px);
}

.stat-card h3 {
  font-size: 1.25rem;
  margin-bottom: 0.75rem;
  color: var(--accent-secondary);
}

.stat-card p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin: 0;
}

/* ====================================================================
   10. DOWNLOAD CTA
   ==================================================================== */

.download-cta {
  padding: 6rem 2rem;
  text-align: center;
  background: linear-gradient(135deg, rgba(99,102,241,0.06), rgba(34,211,238,0.04));
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.download-cta h2 {
  margin-bottom: 1rem;
}

.download-cta p {
  font-size: 1.15rem;
  max-width: 600px;
  margin: 0 auto 2.5rem;
}

/* ====================================================================
   11. FEATURE DETAIL PAGES
   ==================================================================== */

.feature-detail-page {
  margin-top: 70px;
  padding: 3rem 2rem 6rem;
}

.feature-detail-container {
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: 3rem;
  max-width: 1400px;
  margin: 0 auto;
}

/* Sidebar */
.feature-sidebar {
  position: sticky;
  top: 100px;
  height: fit-content;
}

.feature-sidebar .feature-nav h3 {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--text-tertiary);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 1rem;
  padding-left: 1rem;
}

.feature-sidebar .feature-nav ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.feature-sidebar .feature-nav li {
  margin: 0;
}

.feature-sidebar .feature-nav a {
  display: block;
  padding: 0.6rem 1rem;
  color: var(--text-secondary);
  font-size: 0.875rem;
  border-radius: var(--radius-md);
  border-left: 3px solid transparent;
  transition: all var(--transition-fast);
}

.feature-sidebar .feature-nav a:hover {
  background: var(--bg-secondary);
  color: var(--accent-secondary);
  border-left-color: var(--accent-secondary);
}

.feature-sidebar .feature-nav a.active {
  background: rgba(99,102,241,0.1);
  color: var(--accent);
  border-left-color: var(--accent);
  font-weight: 600;
}

/* Feature content area */
.feature-content {
  min-width: 0;
}

.feature-header {
  display: flex;
  align-items: flex-start;
  gap: 1.5rem;
  margin-bottom: 2.5rem;
  padding-bottom: 2rem;
  border-bottom: 1px solid var(--border);
}

.feature-header-icon {
  flex-shrink: 0;
  width: 64px;
  height: 64px;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
}

.feature-header-icon svg {
  display: block;
}

.feature-header-text h1 {
  font-size: 2.25rem;
  margin-bottom: 0.5rem;
}

.feature-description {
  font-size: 1.1rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin: 0;
}

/* Feature article body */
.feature-article {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: 2.5rem;
}

.feature-article > p:first-child {
  font-size: 1.05rem;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 2rem;
}

.feature-article h2 {
  font-size: 1.5rem;
  margin-top: 2.5rem;
  padding-top: 2rem;
  border-top: 1px solid var(--border);
  position: relative;
  padding-bottom: 0.75rem;
}

.feature-article h2::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 50px;
  height: 3px;
  background: linear-gradient(90deg, var(--accent), var(--accent-secondary));
  border-radius: var(--radius-full);
}

.feature-article h2:first-of-type {
  margin-top: 0;
  padding-top: 0;
  border-top: none;
}

.feature-article h3 {
  font-size: 1.15rem;
  margin-top: 1.5rem;
  color: var(--accent-secondary);
}

/* Prev/Next navigation */
.feature-nav-bottom {
  display: flex;
  justify-content: space-between;
  margin-top: 3rem;
  padding-top: 2rem;
  border-top: 1px solid var(--border);
  gap: 1rem;
}

.feature-nav-bottom a {
  display: flex;
  flex-direction: column;
  padding: 1rem 1.5rem;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  transition: all var(--transition-base);
  text-decoration: none;
  min-width: 160px;
}

.feature-nav-bottom a:hover {
  border-color: var(--accent);
  box-shadow: var(--glow-accent);
}

.nav-prev { align-items: flex-start; }
.nav-next { align-items: flex-end; margin-left: auto; }

.nav-label {
  font-size: 0.75rem;
  color: var(--text-tertiary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 0.25rem;
}

.nav-title {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--accent);
}

/* ====================================================================
   12. FEATURES LIST PAGE
   ==================================================================== */

.features-list-page {
  margin-top: 70px;
  padding: 4rem 2rem 6rem;
  max-width: 1400px;
  margin-left: auto;
  margin-right: auto;
}

/* ====================================================================
   13. PAGE HEADER
   ==================================================================== */

.page-header {
  text-align: center;
  margin-bottom: 3rem;
  padding-bottom: 2rem;
  border-bottom: 1px solid var(--border);
}

.page-header h1 {
  margin-bottom: 0.75rem;
}

.page-subtitle {
  font-size: 1.15rem;
  color: var(--text-secondary);
  margin: 0;
}

.features-overview {
  margin-top: 2rem;
}

/* ====================================================================
   14. SINGLE PAGE (download, default)
   ==================================================================== */

.single-page {
  margin-top: 70px;
  padding: 4rem 2rem 6rem;
  max-width: 900px;
  margin-left: auto;
  margin-right: auto;
}

.article-header {
  margin-bottom: 2rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--border);
}

.article-content h2 {
  margin-top: 2.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
  position: relative;
  padding-bottom: 0.75rem;
}

.article-content h2::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 50px;
  height: 3px;
  background: linear-gradient(90deg, var(--accent), var(--accent-secondary));
  border-radius: var(--radius-full);
}

.article-content h2:first-of-type {
  margin-top: 0;
  padding-top: 0;
  border-top: none;
}

/* ====================================================================
   15. LIST PAGE (default)
   ==================================================================== */

.list-page {
  margin-top: 70px;
  padding: 4rem 2rem 6rem;
  max-width: 1100px;
  margin-left: auto;
  margin-right: auto;
}

.page-content {
  margin-bottom: 2rem;
}

.pages-list {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.page-summary {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.5rem 2rem;
  transition: all var(--transition-base);
}

.page-summary:hover {
  border-color: var(--accent);
  box-shadow: var(--glow-accent);
}

.page-summary h2 {
  font-size: 1.25rem;
  margin-bottom: 0.5rem;
}

.page-summary h2 a {
  color: var(--text-primary);
}

.page-summary h2 a:hover {
  color: var(--accent);
}

.page-summary p {
  margin-bottom: 0.75rem;
  font-size: 0.9rem;
}

.read-more {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--accent);
}

/* ====================================================================
   16. SUPPORT PAGE
   ==================================================================== */

.support-page {
  margin-top: 70px;
  padding: 4rem 2rem 6rem;
  max-width: 1100px;
  margin-left: auto;
  margin-right: auto;
}

.support-sections {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2rem;
  margin-bottom: 3rem;
}

.support-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: 2.5rem;
  transition: all var(--transition-base);
}

.support-card:hover {
  border-color: var(--accent);
  box-shadow: var(--glow-accent);
}

.support-card-icon {
  width: 64px;
  height: 64px;
  background: var(--bg-tertiary);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.5rem;
  border: 1px solid var(--border-light);
  color: var(--accent);
}

.support-card h2 {
  font-size: 1.5rem;
  margin-bottom: 0.75rem;
}

.support-card > p {
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 1.5rem;
}

.support-contact {
  margin-bottom: 1.5rem;
}

.support-email {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.75rem 1.5rem;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  color: var(--accent-secondary);
  font-family: var(--font-mono);
  font-size: 0.95rem;
  font-weight: 500;
  transition: all var(--transition-base);
}

.support-email:hover {
  border-color: var(--accent-secondary);
  background: rgba(34, 211, 238, 0.08);
  box-shadow: 0 0 15px rgba(34, 211, 238, 0.2);
  color: var(--accent-secondary);
}

.support-email svg {
  flex-shrink: 0;
  color: var(--accent-secondary);
}

.support-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.support-list li {
  padding: 0.4rem 0;
  padding-left: 1.25rem;
  position: relative;
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin: 0;
}

.support-list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.85rem;
  width: 6px;
  height: 6px;
  background: var(--accent);
  border-radius: 50%;
}

.support-commitment {
  background: linear-gradient(135deg, rgba(99,102,241,0.06), rgba(34,211,238,0.04));
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: 2.5rem;
  text-align: center;
}

.support-commitment h2 {
  font-size: 1.5rem;
  margin-bottom: 1rem;
}

.support-commitment p {
  max-width: 700px;
  margin: 0 auto;
  color: var(--text-secondary);
  line-height: 1.8;
  font-size: 1.05rem;
}

@media (max-width: 768px) {
  .support-sections {
    grid-template-columns: 1fr;
  }
}

/* ====================================================================
   17. FOOTER
   ==================================================================== */

.footer {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border);
  padding: 4rem 2rem 2rem;
  margin-top: 0;
}

.footer-container {
  max-width: 1400px;
  margin: 0 auto;
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 3rem;
  margin-bottom: 3rem;
}

.footer-column h3 {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 1.25rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.footer-column ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer-column li {
  margin-bottom: 0.6rem;
}

.footer-column a {
  color: var(--text-secondary);
  font-size: 0.875rem;
  transition: color var(--transition-fast);
}

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

.footer-bottom {
  border-top: 1px solid var(--border);
  padding-top: 1.5rem;
  text-align: center;
}

.footer-bottom p {
  color: var(--text-tertiary);
  font-size: 0.8rem;
  margin: 0;
}

/* ====================================================================
   17. SCROLLBAR
   ==================================================================== */

::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: var(--bg-primary); }
::-webkit-scrollbar-thumb { background: var(--border-light); border-radius: var(--radius-full); }
::-webkit-scrollbar-thumb:hover { background: var(--accent); }

/* ====================================================================
   18. ANIMATIONS
   ==================================================================== */

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

.feature-card,
.stat-card,
.page-summary {
  opacity: 0;
  transform: translateY(10px);
  animation: fadeIn 0.4s ease-out forwards;
}

.feature-card:nth-child(1) { animation-delay: 0.05s; }
.feature-card:nth-child(2) { animation-delay: 0.1s; }
.feature-card:nth-child(3) { animation-delay: 0.15s; }
.feature-card:nth-child(4) { animation-delay: 0.2s; }
.feature-card:nth-child(5) { animation-delay: 0.25s; }
.feature-card:nth-child(6) { animation-delay: 0.3s; }

.stat-card:nth-child(1) { animation-delay: 0.05s; }
.stat-card:nth-child(2) { animation-delay: 0.1s; }
.stat-card:nth-child(3) { animation-delay: 0.15s; }

/* ====================================================================
   19. FOCUS & ACCESSIBILITY
   ==================================================================== */

a:focus-visible,
button:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

/* ====================================================================
   20. RESPONSIVE
   ==================================================================== */

@media (max-width: 1024px) {
  .feature-grid,
  .feature-grid-large {
    grid-template-columns: repeat(2, 1fr);
  }

  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .feature-detail-container {
    grid-template-columns: 200px 1fr;
    gap: 2rem;
  }

  .footer-content {
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
  }
}

@media (max-width: 768px) {
  .feature-grid,
  .feature-grid-large,
  .stats-grid {
    grid-template-columns: 1fr;
  }

  .feature-detail-container {
    grid-template-columns: 1fr;
  }

  .feature-sidebar {
    position: static;
  }

  .feature-sidebar .feature-nav ul {
    flex-direction: row;
    flex-wrap: wrap;
    gap: 0.5rem;
  }

  .feature-sidebar .feature-nav a {
    border-left: none;
    border-bottom: 2px solid transparent;
    border-radius: var(--radius-sm);
    padding: 0.4rem 0.75rem;
    font-size: 0.8rem;
  }

  .feature-sidebar .feature-nav a.active {
    border-left: none;
    border-bottom-color: var(--accent);
  }

  .feature-header {
    flex-direction: column;
    gap: 1rem;
  }

  .footer-content {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .hero {
    padding: 4rem 1.5rem;
    min-height: auto;
  }

  .hero-title {
    font-size: clamp(2rem, 6vw, 3rem);
  }

  .hero-subtitle {
    font-size: 1.1rem;
  }

  .feature-article {
    padding: 1.5rem;
  }

  .feature-nav-bottom {
    flex-direction: column;
  }

  .nav-next { align-items: flex-start; margin-left: 0; }
}

@media (max-width: 480px) {
  .nav-menu {
    display: none;
    position: absolute;
    top: 70px;
    left: 0;
    right: 0;
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border);
    flex-direction: column;
    padding: 1rem;
    gap: 0;
  }

  .nav-menu.active {
    display: flex;
  }

  .nav-toggle {
    display: flex;
  }

  .dropdown-menu {
    position: static;
    opacity: 1;
    visibility: visible;
    transform: none;
    box-shadow: none;
    border: none;
    padding-left: 1rem;
    background: transparent;
  }

  .dropdown-toggle::after {
    display: none;
  }

  .hero-buttons {
    flex-direction: column;
  }

  .btn { width: 100%; }

  h1 { font-size: 2rem; }
  h2 { font-size: 1.5rem; }
  h3 { font-size: 1.15rem; }

  .features-list-page,
  .single-page,
  .list-page,
  .support-page {
    padding: 3rem 1rem 4rem;
  }

  .feature-detail-page {
    padding: 2rem 1rem 4rem;
  }
}

/* ====================================================================
   21. PRINT
   ==================================================================== */

@media print {
  nav.nav, .footer, .hero, .download-cta { display: none; }
  body { background: white; color: #000; }
  a { color: #0066cc; }
}