/**
 * ========================================================================
 * SessionVault – Stylesheet
 * Autor: Michael Schäfer
 * Version: 1.0.0
 * ========================================================================
 */

/* --- CSS Custom Properties (Design Tokens) --- */
:root {
  /* Colors - Dark Theme (Default) */
  --bg-primary: #0a1628;
  --bg-secondary: #0f2140;
  --bg-tertiary: #152847;
  --bg-card: rgba(15, 33, 64, 0.7);
  --bg-glass: rgba(10, 22, 40, 0.85);

  --text-primary: #ffffff;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;

  --accent-primary: #00D4FF;
  --accent-secondary: #0066FF;
  --accent-gradient: linear-gradient(135deg, #00D4FF 0%, #0066FF 100%);
  --accent-glow: rgba(0, 212, 255, 0.3);

  --success: #10B981;
  --warning: #F59E0B;
  --error: #EF4444;

  --border-color: rgba(255, 255, 255, 0.08);
  --border-hover: rgba(255, 255, 255, 0.15);

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

  /* Spacing */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;

  /* Border Radius */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 8px 40px rgba(0, 0, 0, 0.5);
  --shadow-glow: 0 0 30px var(--accent-glow);

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
  --transition-slow: 400ms ease;

  /* Layout */
  --navbar-height: 72px;
  --container-max: 1200px;
}

/* Light Theme Override */
[data-theme="light"] {
  --bg-primary: #f8fafc;
  --bg-secondary: #f1f5f9;
  --bg-tertiary: #e2e8f0;
  --bg-card: rgba(255, 255, 255, 0.9);
  --bg-glass: rgba(248, 250, 252, 0.9);

  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-muted: #94a3b8;

  --border-color: rgba(0, 0, 0, 0.08);
  --border-hover: rgba(0, 0, 0, 0.15);

  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.08);
  --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 8px 40px rgba(0, 0, 0, 0.12);
}

/* --- Reset & Base --- */
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

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

body {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  color: var(--text-primary);
  background-color: var(--bg-primary);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* --- Utility Classes --- */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

.gradient-text {
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.section {
  padding: var(--space-3xl) 0;
  position: relative;
}

.section-header {
  text-align: center;
  max-width: 700px;
  margin: 0 auto var(--space-3xl);
}

.section-tag {
  display: inline-block;
  padding: var(--space-xs) var(--space-md);
  background: var(--accent-gradient);
  color: #000;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  border-radius: var(--radius-full);
  margin-bottom: var(--space-md);
}

.section-title {
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: var(--space-md);
}

.section-desc {
  font-size: 1.125rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* --- Navigation --- */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--navbar-height);
  z-index: 1000;
  background: var(--bg-glass);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-color);
  transition: var(--transition-base);
}

.navbar.scrolled {
  box-shadow: var(--shadow-md);
}

.nav-container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--space-lg);
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  text-decoration: none;
  color: var(--text-primary);
  font-weight: 700;
  font-size: 1.25rem;
}

.logo-icon {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-sm);
}

.logo-text {
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: var(--space-xl);
  list-style: none;
}

.nav-link {
  color: var(--text-secondary);
  text-decoration: none;
  font-weight: 500;
  font-size: 0.9375rem;
  transition: var(--transition-fast);
  position: relative;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--accent-gradient);
  transition: var(--transition-base);
}

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

.nav-link:hover::after {
  width: 100%;
}

.nav-cta {
  padding: var(--space-sm) var(--space-lg);
  background: var(--accent-gradient);
  color: #000 !important;
  border-radius: var(--radius-full);
  font-weight: 600;
}

.nav-cta::after {
  display: none;
}

.nav-cta:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-glow);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--space-sm);
}

.nav-toggle span {
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  transition: var(--transition-base);
}

/* --- Hero Section --- */
.hero {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-3xl);
  align-items: center;
  padding-top: calc(var(--navbar-height) + var(--space-3xl));
  position: relative;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: -1;
}

.hero-particles {
  position: absolute;
  inset: 0;
  opacity: 0.4;
}

.hero-gradient {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at 20% 50%, rgba(0, 212, 255, 0.12) 0%, transparent 60%),
    radial-gradient(ellipse at 80% 20%, rgba(0, 102, 255, 0.1) 0%, transparent 50%),
    radial-gradient(ellipse at 50% 80%, rgba(0, 212, 255, 0.08) 0%, transparent 50%);
}

.hero-content {
  max-width: 600px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-md);
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-full);
  font-size: 0.8125rem;
  color: var(--text-secondary);
  margin-bottom: var(--space-xl);
  backdrop-filter: blur(10px);
}

.badge-dot {
  width: 8px;
  height: 8px;
  background: var(--success);
  border-radius: 50%;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

.hero-title {
  font-size: clamp(2.5rem, 6vw, 4rem);
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: var(--space-xl);
  letter-spacing: -0.02em;
}

.hero-subtitle {
  font-size: 1.1875rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: var(--space-2xl);
}

.hero-actions {
  display: flex;
  gap: var(--space-md);
  margin-bottom: var(--space-3xl);
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-md) var(--space-xl);
  border-radius: var(--radius-full);
  font-weight: 600;
  font-size: 1rem;
  text-decoration: none;
  transition: var(--transition-base);
  cursor: pointer;
  border: none;
}

.btn svg {
  width: 20px;
  height: 20px;
}

.btn-primary {
  background: var(--accent-gradient);
  color: #000;
  box-shadow: var(--shadow-glow);
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 0 40px var(--accent-glow);
}

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

.btn-secondary:hover {
  background: var(--bg-card);
  border-color: var(--accent-primary);
}

.hero-stats {
  display: flex;
  align-items: center;
  gap: var(--space-xl);
}

.stat {
  display: flex;
  align-items: baseline;
  gap: 2px;
}

.stat-number {
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--text-primary);
  font-variant-numeric: tabular-nums;
}

.stat-unit {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--accent-primary);
}

.stat-label {
  display: block;
  font-size: 0.8125rem;
  color: var(--text-muted);
  margin-top: var(--space-xs);
}

.stat-divider {
  width: 1px;
  height: 48px;
  background: var(--border-color);
}

/* Hero Visual / Mockup */
.hero-visual {
  display: flex;
  justify-content: center;
  align-items: center;
}

.app-mockup {
  position: relative;
  width: 100%;
  max-width: 500px;
}

.mockup-screen {
  background: var(--bg-secondary);
  border-radius: var(--radius-xl);
  border: 1px solid var(--border-color);
  overflow: hidden;
  display: grid;
  grid-template-columns: 140px 1fr;
  min-height: 360px;
  box-shadow: var(--shadow-lg);
}

.mockup-sidebar {
  background: var(--bg-tertiary);
  padding: var(--space-md);
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  border-right: 1px solid var(--border-color);
}

.sidebar-item {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--radius-sm);
  font-size: 0.8125rem;
  color: var(--text-secondary);
  cursor: pointer;
  transition: var(--transition-fast);
}

.sidebar-item.active {
  background: var(--bg-card);
  color: var(--text-primary);
}

.sidebar-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  flex-shrink: 0;
}

.sidebar-add {
  margin-top: auto;
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  border: 1px dashed var(--border-hover);
  color: var(--text-muted);
  font-size: 1.25rem;
  cursor: pointer;
  transition: var(--transition-fast);
}

.sidebar-add:hover {
  border-color: var(--accent-primary);
  color: var(--accent-primary);
}

.mockup-browser {
  padding: var(--space-md);
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.browser-bar {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-sm) var(--space-md);
  background: var(--bg-tertiary);
  border-radius: var(--radius-sm);
}

.browser-dots {
  display: flex;
  gap: 6px;
}

.browser-dots span {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--text-muted);
  opacity: 0.3;
}

.browser-dots span:first-child { background: #EF4444; opacity: 1; }
.browser-dots span:nth-child(2) { background: #F59E0B; opacity: 1; }
.browser-dots span:last-child { background: #10B981; opacity: 1; }

.browser-url {
  font-size: 0.75rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
}

.browser-content {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.content-line {
  height: 12px;
  background: var(--bg-tertiary);
  border-radius: 4px;
}

.content-line.long { width: 90%; }
.content-line.medium { width: 70%; }
.content-line.short { width: 45%; }

.content-card {
  margin-top: auto;
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-md);
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
}

.card-icon {
  font-size: 1.5rem;
}

.card-text {
  flex: 1;
}

.card-title {
  font-size: 0.875rem;
  font-weight: 600;
  margin-bottom: 2px;
}

.card-desc {
  font-size: 0.75rem;
  color: var(--text-muted);
}

.mockup-glow {
  position: absolute;
  inset: -20%;
  background: radial-gradient(circle at center, var(--accent-glow), transparent 70%);
  filter: blur(60px);
  z-index: -1;
  opacity: 0.5;
}

/* --- Features Grid --- */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: var(--space-xl);
}

.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: var(--space-2xl);
  transition: var(--transition-base);
  backdrop-filter: blur(10px);
}

.feature-card:hover {
  border-color: var(--accent-primary);
  transform: translateY(-4px);
  box-shadow: var(--shadow-md), 0 0 30px var(--accent-glow);
}

.feature-icon {
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--accent-gradient);
  border-radius: var(--radius-md);
  margin-bottom: var(--space-lg);
}

.feature-icon svg {
  width: 28px;
  height: 28px;
  stroke: #000;
  stroke-width: 1.5;
  fill: none;
}

.feature-title {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: var(--space-sm);
}

.feature-desc {
  color: var(--text-secondary);
  font-size: 0.9375rem;
  line-height: 1.7;
}

/* --- Platforms Grid --- */
.platforms-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: var(--space-xl);
  margin-bottom: var(--space-2xl);
}

.platform-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: var(--space-2xl);
  text-align: center;
  transition: var(--transition-base);
  backdrop-filter: blur(10px);
}

.platform-card:hover {
  border-color: var(--accent-primary);
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.platform-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto var(--space-lg);
  color: var(--accent-primary);
}

.platform-icon svg {
  width: 100%;
  height: 100%;
}

.platform-name {
  font-size: 1.375rem;
  font-weight: 700;
  margin-bottom: var(--space-xs);
}

.platform-tech {
  display: block;
  font-size: 0.8125rem;
  color: var(--text-muted);
  margin-bottom: var(--space-xs);
}

.platform-version {
  display: block;
  font-size: 0.8125rem;
  color: var(--text-secondary);
  margin-bottom: var(--space-md);
}

.platform-status {
  display: inline-block;
  padding: var(--space-xs) var(--space-md);
  border-radius: var(--radius-full);
  font-size: 0.8125rem;
  font-weight: 600;
}

.status-live {
  background: rgba(16, 185, 129, 0.15);
  color: var(--success);
}

.platform-note {
  display: flex;
  align-items: flex-start;
  gap: var(--space-md);
  padding: var(--space-lg);
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  border-left: 4px solid var(--accent-primary);
}

.platform-note svg {
  width: 24px;
  height: 24px;
  flex-shrink: 0;
  color: var(--accent-primary);
  margin-top: 2px;
}

.platform-note p {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

.platform-note code {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  padding: 2px 6px;
  background: var(--bg-tertiary);
  border-radius: 4px;
  color: var(--accent-primary);
}

/* --- Security Section --- */
.security {
  background: var(--bg-secondary);
}

.security-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: var(--space-lg);
  margin-bottom: var(--space-2xl);
}

.security-item {
  display: flex;
  gap: var(--space-lg);
  padding: var(--space-xl);
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  transition: var(--transition-base);
}

.security-item:hover {
  border-color: var(--accent-primary);
}

.security-letter {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--accent-gradient);
  color: #000;
  font-size: 1.5rem;
  font-weight: 800;
  border-radius: var(--radius-md);
  flex-shrink: 0;
}

.security-content h4 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: var(--space-xs);
}

.security-content p {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

.security-extra {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-lg);
}

.extra-card {
  display: flex;
  gap: var(--space-md);
  padding: var(--space-xl);
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
}

.extra-icon {
  font-size: 2rem;
  flex-shrink: 0;
}

.extra-card h4 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: var(--space-xs);
}

.extra-card p {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* --- Download Section --- */
.download-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--space-lg);
  margin-bottom: var(--space-2xl);
}

.download-card {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
  padding: var(--space-xl);
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  text-decoration: none;
  color: inherit;
  transition: var(--transition-base);
}

.download-card:hover {
  border-color: var(--accent-primary);
  transform: translateX(8px);
  box-shadow: var(--shadow-md);
}

.download-icon {
  width: 52px;
  height: 52px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--accent-gradient);
  border-radius: var(--radius-md);
  flex-shrink: 0;
}

.download-icon svg {
  width: 26px;
  height: 26px;
  stroke: #000;
}

.download-info {
  flex: 1;
}

.download-info h3 {
  font-size: 1.125rem;
  font-weight: 700;
  margin-bottom: 2px;
}

.download-info p {
  font-size: 0.875rem;
  color: var(--text-secondary);
}

.download-arrow {
  font-size: 1.5rem;
  color: var(--text-muted);
  transition: var(--transition-fast);
}

.download-card:hover .download-arrow {
  color: var(--accent-primary);
  transform: translateX(4px);
}

.download-note {
  text-align: center;
  padding: var(--space-lg);
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
}

.download-note p {
  font-size: 0.9375rem;
  color: var(--text-secondary);
}

.download-note strong {
  color: var(--accent-primary);
}

/* --- Footer --- */
.footer {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-color);
  padding: var(--space-3xl) 0 var(--space-xl);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--space-2xl);
  margin-bottom: var(--space-2xl);
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  text-decoration: none;
  color: var(--text-primary);
  font-weight: 700;
  font-size: 1.125rem;
  margin-bottom: var(--space-md);
}

.footer-desc {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

.footer-links h4 {
  font-size: 0.9375rem;
  font-weight: 700;
  margin-bottom: var(--space-md);
  color: var(--text-primary);
}

.footer-links ul {
  list-style: none;
}

.footer-links li {
  margin-bottom: var(--space-sm);
}

.footer-links a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.9375rem;
  transition: var(--transition-fast);
}

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

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: var(--space-xl);
  border-top: 1px solid var(--border-color);
  font-size: 0.875rem;
  color: var(--text-muted);
}

.footer-love {
  color: var(--accent-primary);
}

/* --- Responsive Design --- */
@media (max-width: 1024px) {
  .hero {
    grid-template-columns: 1fr;
    text-align: center;
    padding-top: calc(var(--navbar-height) + var(--space-2xl));
  }

  .hero-content {
    max-width: 100%;
  }

  .hero-actions {
    justify-content: center;
  }

  .hero-stats {
    justify-content: center;
  }

  .hero-visual {
    order: -1;
  }

  .app-mockup {
    max-width: 400px;
  }

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

@media (max-width: 768px) {
  :root {
    --navbar-height: 64px;
  }

  .nav-toggle {
    display: flex;
  }

  .nav-menu {
    position: fixed;
    top: var(--navbar-height);
    left: 0;
    right: 0;
    background: var(--bg-glass);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    flex-direction: column;
    padding: var(--space-xl);
    gap: var(--space-lg);
    border-bottom: 1px solid var(--border-color);
    transform: translateY(-100%);
    opacity: 0;
    visibility: hidden;
    transition: var(--transition-base);
  }

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

  .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);
  }

  .section {
    padding: var(--space-2xl) 0;
  }

  .section-header {
    margin-bottom: var(--space-2xl);
  }

  .features-grid,
  .platforms-grid,
  .security-grid,
  .security-extra,
  .download-grid {
    grid-template-columns: 1fr;
  }

  .mockup-screen {
    grid-template-columns: 100px 1fr;
    min-height: 280px;
  }

  .sidebar-item {
    font-size: 0.75rem;
    padding: var(--space-xs) var(--space-sm);
  }

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

  .footer-bottom {
    flex-direction: column;
    gap: var(--space-sm);
    text-align: center;
  }

  .hero-stats {
    flex-wrap: wrap;
    gap: var(--space-lg);
  }

  .stat-divider {
    display: none;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 var(--space-md);
  }

  .hero-title {
    font-size: 2rem;
  }

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

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

  .platform-note {
    flex-direction: column;
  }

  .security-item {
    flex-direction: column;
    text-align: center;
  }

  .extra-card {
    flex-direction: column;
    text-align: center;
  }

  .download-card {
    flex-direction: column;
    text-align: center;
  }
}

/* --- Animations --- */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

[data-aos="fade-up"] {
  opacity: 0;
  animation: fadeInUp 0.6s ease forwards;
}

[data-aos="fade-up"][data-delay="100"] {
  animation-delay: 100ms;
}

[data-aos="fade-up"][data-delay="200"] {
  animation-delay: 200ms;
}

/* --- Scrollbar Styling --- */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: var(--bg-primary);
}

::-webkit-scrollbar-thumb {
  background: var(--bg-tertiary);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--text-muted);
}

/* --- Selection Styling --- */
::selection {
  background: var(--accent-primary);
  color: #000;
}