/* ============================================
   SIGA Landing Page - Design System
   Futuristic IoT Platform Aesthetic
   ============================================ */

/* === CSS Custom Properties === */
:root {
  /* Colors - Cyberpunk/IoT Palette */
  --color-bg-primary: #030014;
  --color-bg-secondary: #0a0a1f;
  --color-bg-tertiary: #12122a;
  
  --color-cyan: #00f5ff;
  --color-cyan-glow: rgba(0, 245, 255, 0.6);
  --color-violet: #7c3aed;
  --color-violet-glow: rgba(124, 58, 237, 0.5);
  --color-blue: #3b82f6;
  --color-emerald: #10b981;
  --color-amber: #f59e0b;
  --color-rose: #f43f5e;
  
  --color-text-primary: #ffffff;
  --color-text-secondary: #a1a1aa;
  --color-text-muted: #71717a;
  
  /* Gradients */
  --gradient-primary: linear-gradient(135deg, var(--color-cyan) 0%, var(--color-violet) 100%);
  --gradient-bg: radial-gradient(ellipse at 20% 0%, rgba(124, 58, 237, 0.15) 0%, transparent 50%),
                 radial-gradient(ellipse at 80% 100%, rgba(0, 245, 255, 0.1) 0%, transparent 50%),
                 linear-gradient(180deg, var(--color-bg-primary) 0%, var(--color-bg-secondary) 100%);
  --gradient-glass: linear-gradient(135deg, rgba(255, 255, 255, 0.1) 0%, rgba(255, 255, 255, 0.02) 100%);
  
  /* Glass Effects */
  --glass-bg: rgba(255, 255, 255, 0.03);
  --glass-border: rgba(255, 255, 255, 0.08);
  --glass-blur: blur(20px);
  
  /* Shadows */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 8px 32px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 16px 64px rgba(0, 0, 0, 0.5);
  --shadow-glow-cyan: 0 0 30px var(--color-cyan-glow);
  --shadow-glow-violet: 0 0 30px var(--color-violet-glow);
  
  /* Typography */
  --font-family: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', ui-monospace, monospace;
  
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 2rem;
  --font-size-4xl: 2.5rem;
  --font-size-5xl: 3.5rem;
  --font-size-6xl: 4.5rem;
  
  /* 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;
  
  /* Border Radius */
  --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 cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 300ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 500ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-bounce: 500ms cubic-bezier(0.34, 1.56, 0.64, 1);
  
  /* Z-Index */
  --z-base: 1;
  --z-dropdown: 100;
  --z-sticky: 200;
  --z-modal: 300;
  --z-tooltip: 400;
  --z-loader: 500;
}

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

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

body {
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  line-height: 1.6;
  color: var(--color-text-primary);
  background: var(--gradient-bg);
  background-attachment: fixed;
  min-height: 100vh;
  overflow-x: hidden;
}

a {
  color: inherit;
  text-decoration: none;
}

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

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

/* === Container === */
.container {
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 var(--space-6);
}

@media (max-width: 768px) {
  .container {
    padding: 0 var(--space-4);
  }
}

/* === Typography === */
h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.02em;
}

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

.text-glow {
  text-shadow: 0 0 20px var(--color-cyan-glow);
}

/* === Particles Background === */
#particles-js {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
}

/* === Loader === */
.loader {
  position: fixed;
  inset: 0;
  z-index: var(--z-loader);
  display: grid;
  place-items: center;
  background: var(--color-bg-primary);
  transition: opacity 0.6s ease, visibility 0.6s ease;
}

.loader.hidden {
  opacity: 0;
  visibility: hidden;
}

.loader-spinner {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  border: 3px solid var(--glass-border);
  border-top-color: var(--color-cyan);
  animation: spin 1s linear infinite;
  box-shadow: var(--shadow-glow-cyan);
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* === Header/Navbar === */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--z-sticky);
  padding: var(--space-4) 0;
  transition: var(--transition-base);
}

.header.scrolled {
  background: rgba(3, 0, 20, 0.8);
  backdrop-filter: var(--glass-blur);
  border-bottom: 1px solid var(--glass-border);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-8);
}

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

.nav-logo {
  width: 36px;
  height: 36px;
  color: var(--color-cyan);
  filter: drop-shadow(0 0 8px var(--color-cyan-glow));
}

.nav-title {
  font-size: var(--font-size-xl);
  font-weight: 800;
  letter-spacing: 0.1em;
}

.nav-badge {
  font-size: var(--font-size-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  padding: var(--space-1) var(--space-3);
  background: var(--gradient-glass);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-full);
  color: var(--color-cyan);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.nav-link {
  font-size: var(--font-size-sm);
  font-weight: 500;
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-full);
  color: var(--color-text-secondary);
  transition: var(--transition-fast);
}

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

.nav-cta {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--font-size-sm);
  font-weight: 600;
  padding: var(--space-2) var(--space-5);
  background: var(--gradient-primary);
  border-radius: var(--radius-full);
  color: var(--color-bg-primary);
  transition: var(--transition-base);
}

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

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: var(--space-2);
}

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

@media (max-width: 768px) {
  .nav-links {
    display: none;
  }
  
  .nav-toggle {
    display: flex;
  }
}

/* === Buttons === */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  font-size: var(--font-size-base);
  font-weight: 600;
  padding: var(--space-3) var(--space-6);
  border-radius: var(--radius-lg);
  transition: var(--transition-base);
  cursor: pointer;
}

.btn-primary {
  background: var(--gradient-primary);
  color: var(--color-bg-primary);
  box-shadow: var(--shadow-md);
}

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

.btn-secondary {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  color: var(--color-text-primary);
  backdrop-filter: blur(10px);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: var(--color-cyan);
}

.btn-lg {
  font-size: var(--font-size-lg);
  padding: var(--space-4) var(--space-8);
  border-radius: var(--radius-xl);
}

/* === Hero Section === */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: var(--space-24) 0 var(--space-16);
  position: relative;
  overflow: hidden;
}

.hero-content {
  max-width: 800px;
  position: relative;
  z-index: var(--z-base);
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--font-size-sm);
  font-weight: 500;
  padding: var(--space-2) var(--space-4);
  background: var(--gradient-glass);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-full);
  margin-bottom: var(--space-6);
  color: var(--color-cyan);
}

.hero-badge-dot {
  width: 8px;
  height: 8px;
  background: var(--color-emerald);
  border-radius: 50%;
  animation: pulse 2s ease-in-out infinite;
}

.hero-title {
  font-size: clamp(var(--font-size-4xl), 8vw, var(--font-size-6xl));
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: var(--space-6);
}

.hero-description {
  font-size: var(--font-size-lg);
  color: var(--color-text-secondary);
  max-width: 600px;
  margin-bottom: var(--space-8);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-4);
  margin-top: var(--space-16);
  padding-top: var(--space-8);
  border-top: 1px solid var(--glass-border);
}

.hero-stat {
  text-align: left;
}

.hero-stat-value {
  font-size: var(--font-size-3xl);
  font-weight: 700;
  font-family: var(--font-mono);
  color: var(--color-cyan);
  text-shadow: 0 0 20px var(--color-cyan-glow);
}

.hero-stat-label {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  margin-top: var(--space-1);
}

@media (max-width: 768px) {
  .hero-stats {
    grid-template-columns: 1fr;
    gap: var(--space-6);
  }
}

/* === Section Base === */
.section {
  padding: var(--space-24) 0;
  position: relative;
}

.section-header {
  text-align: center;
  max-width: 700px;
  margin: 0 auto var(--space-16);
}

.section-label {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--font-size-sm);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--color-cyan);
  margin-bottom: var(--space-4);
}

.section-title {
  font-size: clamp(var(--font-size-3xl), 5vw, var(--font-size-4xl));
  margin-bottom: var(--space-4);
}

.section-description {
  font-size: var(--font-size-lg);
  color: var(--color-text-secondary);
}

/* === Cards === */
.card {
  position: relative;
  padding: var(--space-8);
  background: var(--gradient-glass);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-2xl);
  backdrop-filter: blur(10px);
  transition: var(--transition-base);
  overflow: hidden;
}

.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--color-cyan), transparent);
  opacity: 0;
  transition: var(--transition-base);
}

.card:hover {
  transform: translateY(-4px);
  border-color: rgba(0, 245, 255, 0.3);
  box-shadow: var(--shadow-md);
}

.card:hover::before {
  opacity: 1;
}

.card-icon {
  width: 48px;
  height: 48px;
  display: grid;
  place-items: center;
  background: var(--gradient-primary);
  border-radius: var(--radius-lg);
  margin-bottom: var(--space-5);
  color: var(--color-bg-primary);
}

.card-title {
  font-size: var(--font-size-xl);
  margin-bottom: var(--space-3);
}

.card-description {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  line-height: 1.7;
}

.card-badge {
  position: absolute;
  top: var(--space-4);
  right: var(--space-4);
  font-size: var(--font-size-xs);
  font-weight: 600;
  padding: var(--space-1) var(--space-3);
  background: rgba(0, 245, 255, 0.1);
  border: 1px solid rgba(0, 245, 255, 0.3);
  border-radius: var(--radius-full);
  color: var(--color-cyan);
}

/* === Features Grid === */
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
}

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

@media (max-width: 640px) {
  .features-grid {
    grid-template-columns: 1fr;
  }
}

/* === Stats/KPI Section === */
.stats-section {
  background: var(--gradient-glass);
  border-top: 1px solid var(--glass-border);
  border-bottom: 1px solid var(--glass-border);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-6);
}

.stat-card {
  text-align: center;
  padding: var(--space-6);
}

.stat-value {
  font-size: var(--font-size-4xl);
  font-weight: 700;
  font-family: var(--font-mono);
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.stat-label {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  margin-top: var(--space-2);
}

.stat-sparkline {
  height: 40px;
  margin-top: var(--space-3);
}

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

@media (max-width: 640px) {
  .stats-grid {
    grid-template-columns: 1fr;
  }
}

/* === Dashboard Preview === */
.dashboard-preview {
  position: relative;
  border-radius: var(--radius-2xl);
  overflow: hidden;
  background: var(--gradient-glass);
  border: 1px solid var(--glass-border);
  box-shadow: var(--shadow-lg);
}

.dashboard-header {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-4) var(--space-6);
  background: rgba(0, 0, 0, 0.3);
  border-bottom: 1px solid var(--glass-border);
}

.dashboard-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
}

.dashboard-dot.red { background: #ff5f57; }
.dashboard-dot.yellow { background: #febc2e; }
.dashboard-dot.green { background: #28c840; }

.dashboard-content {
  padding: var(--space-6);
  min-height: 400px;
}

.dashboard-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-4);
  margin-bottom: var(--space-6);
}

.dashboard-kpi {
  padding: var(--space-4);
  background: rgba(0, 0, 0, 0.3);
  border-radius: var(--radius-lg);
  border: 1px solid var(--glass-border);
}

.dashboard-kpi-label {
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.dashboard-kpi-value {
  font-size: var(--font-size-2xl);
  font-weight: 700;
  font-family: var(--font-mono);
  margin-top: var(--space-2);
}

.dashboard-kpi-value.cyan { color: var(--color-cyan); }
.dashboard-kpi-value.violet { color: var(--color-violet); }
.dashboard-kpi-value.emerald { color: var(--color-emerald); }

.dashboard-table {
  width: 100%;
  font-size: var(--font-size-sm);
}

.dashboard-table th {
  text-align: left;
  padding: var(--space-3) var(--space-4);
  font-size: var(--font-size-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-text-muted);
  border-bottom: 1px solid var(--glass-border);
}

.dashboard-table td {
  padding: var(--space-3) var(--space-4);
  border-bottom: 1px solid var(--glass-border);
}

.dashboard-table tr:last-child td {
  border-bottom: none;
}

.status-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--font-size-xs);
  font-weight: 500;
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-full);
}

.status-badge.online {
  background: rgba(16, 185, 129, 0.2);
  color: var(--color-emerald);
}

.status-badge.offline {
  background: rgba(244, 63, 94, 0.2);
  color: var(--color-rose);
}

.status-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: currentColor;
}

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

/* === Pricing Section === */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6);
  align-items: stretch;
}

.pricing-card {
  position: relative;
  display: flex;
  flex-direction: column;
  padding: var(--space-8);
  background: var(--gradient-glass);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-2xl);
  backdrop-filter: blur(10px);
  transition: var(--transition-base);
}

.pricing-card.featured {
  border-color: var(--color-cyan);
  box-shadow: 0 0 40px rgba(0, 245, 255, 0.15);
}

.pricing-card.featured::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--gradient-primary);
}

.pricing-popular {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  font-size: var(--font-size-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  padding: var(--space-2) var(--space-4);
  background: var(--gradient-primary);
  border-radius: var(--radius-full);
  color: var(--color-bg-primary);
}

.pricing-name {
  font-size: var(--font-size-lg);
  font-weight: 600;
  margin-bottom: var(--space-2);
}

.pricing-description {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  margin-bottom: var(--space-6);
}

.pricing-price {
  display: flex;
  align-items: baseline;
  gap: var(--space-1);
  margin-bottom: var(--space-6);
}

.pricing-currency {
  font-size: var(--font-size-xl);
  font-weight: 600;
  color: var(--color-text-secondary);
}

.pricing-amount {
  font-size: var(--font-size-5xl);
  font-weight: 700;
  line-height: 1;
}

.pricing-period {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
}

.pricing-features {
  flex-grow: 1;
  margin-bottom: var(--space-8);
}

.pricing-feature {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  padding: var(--space-2) 0;
}

.pricing-feature-icon {
  width: 20px;
  height: 20px;
  color: var(--color-emerald);
  flex-shrink: 0;
}

@media (max-width: 1024px) {
  .pricing-grid {
    grid-template-columns: 1fr;
    max-width: 500px;
    margin: 0 auto;
  }
}

/* === Testimonials === */
.testimonials-container {
  position: relative;
  overflow: hidden;
}

.testimonials-track {
  display: flex;
  gap: var(--space-6);
  animation: scroll 40s linear infinite;
}

.testimonials-track:hover {
  animation-play-state: paused;
}

@keyframes scroll {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

.testimonial-card {
  flex-shrink: 0;
  width: 400px;
  padding: var(--space-6);
  background: var(--gradient-glass);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-xl);
  backdrop-filter: blur(10px);
}

.testimonial-content {
  font-size: var(--font-size-base);
  color: var(--color-text-secondary);
  line-height: 1.7;
  margin-bottom: var(--space-6);
}

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

.testimonial-avatar {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--gradient-primary);
  display: grid;
  place-items: center;
  font-weight: 700;
  color: var(--color-bg-primary);
}

.testimonial-name {
  font-weight: 600;
}

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

/* === CTA Section === */
.cta-section {
  text-align: center;
  padding: var(--space-24) 0;
  background: radial-gradient(ellipse at center, rgba(124, 58, 237, 0.15) 0%, transparent 70%);
}

.cta-title {
  font-size: clamp(var(--font-size-3xl), 5vw, var(--font-size-4xl));
  margin-bottom: var(--space-4);
}

.cta-description {
  font-size: var(--font-size-lg);
  color: var(--color-text-secondary);
  max-width: 600px;
  margin: 0 auto var(--space-8);
}

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

/* === Footer === */
.footer {
  padding: var(--space-16) 0 var(--space-8);
  border-top: 1px solid var(--glass-border);
  background: rgba(0, 0, 0, 0.3);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr repeat(3, 1fr);
  gap: var(--space-12);
  margin-bottom: var(--space-12);
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-bottom: var(--space-4);
}

.footer-brand-logo {
  width: 32px;
  height: 32px;
  color: var(--color-cyan);
}

.footer-brand-name {
  font-size: var(--font-size-xl);
  font-weight: 700;
}

.footer-description {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  max-width: 300px;
}

.footer-title {
  font-size: var(--font-size-sm);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: var(--space-4);
  color: var(--color-text-primary);
}

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

.footer-link {
  display: block;
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  padding: var(--space-2) 0;
  transition: var(--transition-fast);
}

.footer-link:hover {
  color: var(--color-cyan);
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: var(--space-8);
  border-top: 1px solid var(--glass-border);
}

.footer-copyright {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
}

.footer-socials {
  display: flex;
  gap: var(--space-4);
}

.footer-social {
  width: 40px;
  height: 40px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  color: var(--color-text-secondary);
  transition: var(--transition-fast);
}

.footer-social:hover {
  background: var(--color-cyan);
  border-color: var(--color-cyan);
  color: var(--color-bg-primary);
}

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

@media (max-width: 640px) {
  .footer-grid {
    grid-template-columns: 1fr;
  }
  
  .footer-bottom {
    flex-direction: column;
    gap: var(--space-4);
    text-align: center;
  }
}

/* === Animations (Base) === */
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

@keyframes glow {
  0%, 100% { box-shadow: 0 0 20px var(--color-cyan-glow); }
  50% { box-shadow: 0 0 40px var(--color-cyan-glow); }
}

/* === Reveal Animation (GSAP fallback) === */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

.reveal.active {
  opacity: 1;
  transform: translateY(0);
}

/* === Utility Classes === */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.hidden { display: none; }
.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;
}