/* QDET Website - Main Styles */

/* ===== CSS Variables (Design Tokens) ===== */
:root {
  /* Colors */
  --bg-primary: #0a0a0c;
  --bg-secondary: #141418;
  --bg-tertiary: #1a1a1f;
  --bg-card: rgba(20, 20, 24, 0.8);
  --bg-glass: rgba(255, 255, 255, 0.05);
  
  /* Accent Colors */
  --accent-blue: #4a7dff;
  --accent-cyan: #00d4ff;
  --accent-purple: #7c3aed;
  --accent-green: #10b981;
  --accent-orange: #f59e0b;
  
  /* Text Colors */
  --text-primary: #ffffff;
  --text-secondary: #a0a0a8;
  --text-muted: #6b6b75;
  
  /* Gradients */
  --gradient-primary: linear-gradient(135deg, #4a7dff 0%, #00d4ff 100%);
  --gradient-secondary: linear-gradient(135deg, #7c3aed 0%, #4a7dff 100%);
  --gradient-accent: linear-gradient(135deg, #00d4ff 0%, #10b981 100%);
  --gradient-hero: linear-gradient(180deg, rgba(74, 125, 255, 0.15) 0%, transparent 50%);
  
  /* Border Colors */
  --border-default: rgba(255, 255, 255, 0.1);
  --border-hover: rgba(255, 255, 255, 0.2);
  
  /* Shadows */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.5);
  --shadow-glow-blue: 0 0 40px rgba(74, 125, 255, 0.3);
  --shadow-glow-cyan: 0 0 40px rgba(0, 212, 255, 0.3);
  
  /* Spacing */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;
  --spacing-2xl: 4rem;
  --spacing-3xl: 6rem;
  
  /* Border Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.75rem;
  --radius-lg: 1rem;
  --radius-xl: 1.5rem;
  --radius-full: 9999px;
  
  /* Typography */
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --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: 1.875rem;
  --font-size-4xl: 2.25rem;
  --font-size-5xl: 3rem;
  --font-size-6xl: 3.75rem;
  --font-size-7xl: 4.5rem;
  
  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 250ms ease;
  --transition-slow: 350ms ease;
  
  /* Container */
  --container-max: 1280px;
  --container-padding: 1.5rem;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

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

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition-base);
}

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

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

ul, ol {
  list-style: none;
}

/* ===== Typography ===== */
h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.2;
  color: var(--text-primary);
}

h1 { font-size: var(--font-size-5xl); }
h2 { font-size: var(--font-size-4xl); }
h3 { font-size: var(--font-size-2xl); }
h4 { font-size: var(--font-size-xl); }

@media (min-width: 768px) {
  h1 { font-size: var(--font-size-6xl); }
  h2 { font-size: var(--font-size-5xl); }
}

@media (min-width: 1024px) {
  h1 { font-size: var(--font-size-7xl); }
}

p {
  color: var(--text-secondary);
  font-size: var(--font-size-base);
}

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

/* ===== Layout ===== */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-padding);
}

.section {
  padding: var(--spacing-3xl) 0;
}

.section-header {
  text-align: center;
  margin-bottom: var(--spacing-2xl);
}

.section-header h2 {
  margin-bottom: var(--spacing-sm);
}

.section-header p {
  max-width: 600px;
  margin: 0 auto;
  font-size: var(--font-size-lg);
}

/* ===== Header & Navigation ===== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(10, 10, 12, 0.8);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-default);
  transition: background var(--transition-base);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.logo {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  font-size: var(--font-size-xl);
  font-weight: 800;
}

.logo-icon {
  width: 40px;
  height: 40px;
  background: var(--gradient-primary);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 900;
  font-size: var(--font-size-lg);
}

.nav {
  display: none;
}

@media (min-width: 1024px) {
  .nav {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
  }
}

.nav-link {
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--text-secondary);
  padding: var(--spacing-xs) 0;
  position: relative;
}

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

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

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

.header-actions {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.header-phone {
  display: none;
  align-items: center;
  gap: var(--spacing-xs);
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--text-secondary);
}

@media (min-width: 768px) {
  .header-phone {
    display: flex;
  }
}

.header-phone:hover {
  color: var(--accent-cyan);
}

.lang-switch {
  display: flex;
  align-items: center;
  gap: 2px;
  background: var(--bg-glass);
  border-radius: var(--radius-full);
  padding: 4px;
}

.lang-btn {
  padding: 6px 12px;
  font-size: var(--font-size-xs);
  font-weight: 600;
  color: var(--text-secondary);
  border-radius: var(--radius-full);
  transition: all var(--transition-fast);
}

.lang-btn.active {
  background: var(--gradient-primary);
  color: var(--text-primary);
}

.mobile-menu-btn {
  display: flex;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
  background: var(--bg-glass);
  border-radius: var(--radius-md);
}

@media (min-width: 1024px) {
  .mobile-menu-btn {
    display: none;
  }
}

.mobile-menu-btn span {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 1px;
  transition: var(--transition-fast);
}

/* Mobile Menu */
.mobile-menu {
  position: fixed;
  top: 72px;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--bg-primary);
  padding: var(--spacing-lg);
  transform: translateX(-100%);
  transition: transform var(--transition-base);
  z-index: 999;
}

.mobile-menu.active {
  transform: translateX(0);
}

.mobile-nav {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.mobile-nav-link {
  font-size: var(--font-size-lg);
  font-weight: 500;
  color: var(--text-secondary);
  padding: var(--spacing-sm) 0;
  border-bottom: 1px solid var(--border-default);
}

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

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-xs);
  padding: 12px 24px;
  font-size: var(--font-size-sm);
  font-weight: 600;
  border-radius: var(--radius-lg);
  transition: all var(--transition-base);
  white-space: nowrap;
}

.btn-primary {
  background: var(--gradient-primary);
  color: var(--text-primary);
  box-shadow: var(--shadow-glow-blue);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 60px rgba(74, 125, 255, 0.5);
}

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

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

.btn-outline {
  background: transparent;
  color: var(--text-primary);
  border: 2px solid var(--accent-blue);
}

.btn-outline:hover {
  background: var(--accent-blue);
}

.btn-lg {
  padding: 16px 32px;
  font-size: var(--font-size-base);
}

/* ===== Hero Section ===== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: 72px;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 100%;
  max-width: 1200px;
  height: 600px;
  background: radial-gradient(ellipse at center top, rgba(74, 125, 255, 0.2) 0%, transparent 70%);
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 900px;
  margin: 0 auto;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
  padding: 8px 16px;
  background: var(--bg-glass);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-full);
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
  margin-bottom: var(--spacing-lg);
}

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

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

.hero h1 {
  margin-bottom: var(--spacing-lg);
}

.hero-description {
  font-size: var(--font-size-lg);
  max-width: 700px;
  margin: 0 auto var(--spacing-xl);
}

@media (min-width: 768px) {
  .hero-description {
    font-size: var(--font-size-xl);
  }
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--spacing-sm);
}

.hero-features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-md);
  margin-top: var(--spacing-3xl);
}

.hero-feature {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-md);
  background: var(--bg-glass);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-lg);
  transition: all var(--transition-base);
}

.hero-feature:hover {
  background: var(--bg-tertiary);
  border-color: var(--border-hover);
  transform: translateY(-4px);
}

.hero-feature-icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--gradient-primary);
  border-radius: var(--radius-md);
  font-size: 20px;
  flex-shrink: 0;
}

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

.hero-feature-text strong {
  display: block;
  font-weight: 600;
  margin-bottom: 2px;
}

.hero-feature-text span {
  font-size: var(--font-size-sm);
  color: var(--text-muted);
}

/* ===== Feature Cards ===== */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-lg);
}

.feature-card {
  position: relative;
  padding: var(--spacing-xl);
  background: var(--bg-card);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-xl);
  transition: all var(--transition-base);
  overflow: hidden;
}

.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--gradient-primary);
  opacity: 0;
  transition: opacity var(--transition-base);
}

.feature-card:hover {
  transform: translateY(-8px);
  border-color: var(--border-hover);
  box-shadow: var(--shadow-lg);
}

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

.feature-icon {
  width: 64px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-glass);
  border-radius: var(--radius-lg);
  font-size: 28px;
  margin-bottom: var(--spacing-md);
}

.feature-card h3 {
  margin-bottom: var(--spacing-sm);
}

.feature-card p {
  font-size: var(--font-size-sm);
}

/* ===== Products Section ===== */
.products-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-xl);
}

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

.product-card {
  position: relative;
  padding: var(--spacing-xl);
  background: var(--bg-card);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-xl);
  text-align: center;
  transition: all var(--transition-base);
  overflow: hidden;
}

.product-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--gradient-primary);
  opacity: 0;
  transition: opacity var(--transition-slow);
}

.product-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-glow-blue);
}

.product-card:hover::before {
  opacity: 0.05;
}

.product-card-content {
  position: relative;
  z-index: 1;
}

.product-icon {
  width: 80px;
  height: 80px;
  margin: 0 auto var(--spacing-md);
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--gradient-primary);
  border-radius: var(--radius-xl);
  font-size: 36px;
}

.product-card h3 {
  margin-bottom: var(--spacing-sm);
}

.product-card p {
  margin-bottom: var(--spacing-lg);
  min-height: 60px;
}

/* ===== Pricing Section ===== */
.pricing-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-lg);
}

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

.pricing-card {
  position: relative;
  padding: var(--spacing-xl);
  background: var(--bg-card);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-xl);
  transition: all var(--transition-base);
}

.pricing-card.featured {
  border-color: var(--accent-blue);
  transform: scale(1.02);
}

.pricing-card.featured::before {
  content: 'Популярный';
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  padding: 6px 16px;
  background: var(--gradient-primary);
  border-radius: var(--radius-full);
  font-size: var(--font-size-xs);
  font-weight: 600;
}

.pricing-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-glow-blue);
}

.pricing-card.featured:hover {
  transform: scale(1.02) translateY(-8px);
}

.pricing-header {
  text-align: center;
  padding-bottom: var(--spacing-lg);
  border-bottom: 1px solid var(--border-default);
  margin-bottom: var(--spacing-lg);
}

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

.pricing-price {
  font-size: var(--font-size-4xl);
  font-weight: 800;
}

.pricing-price span {
  font-size: var(--font-size-base);
  font-weight: 400;
  color: var(--text-secondary);
}

.pricing-description {
  font-size: var(--font-size-sm);
  color: var(--text-muted);
  margin-top: var(--spacing-xs);
}

.pricing-features {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-xl);
}

.pricing-feature {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  font-size: var(--font-size-sm);
}

.pricing-feature.included {
  color: var(--text-primary);
}

.pricing-feature.excluded {
  color: var(--text-muted);
  text-decoration: line-through;
}

.pricing-feature-icon {
  width: 20px;
  height: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  font-size: 12px;
  flex-shrink: 0;
}

.pricing-feature.included .pricing-feature-icon {
  background: rgba(16, 185, 129, 0.2);
  color: var(--accent-green);
}

.pricing-feature.excluded .pricing-feature-icon {
  background: rgba(255, 255, 255, 0.1);
  color: var(--text-muted);
}

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

/* ===== Stats Section ===== */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-lg);
}

@media (min-width: 768px) {
  .stats-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

.stat-item {
  text-align: center;
  padding: var(--spacing-lg);
  background: var(--bg-glass);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-xl);
}

.stat-value {
  font-size: var(--font-size-4xl);
  font-weight: 800;
  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(--text-muted);
  margin-top: var(--spacing-xs);
}

/* ===== Testimonials ===== */
.testimonials-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-lg);
}

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

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

.testimonial-card {
  padding: var(--spacing-xl);
  background: var(--bg-card);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-xl);
}

.testimonial-content {
  font-size: var(--font-size-base);
  font-style: italic;
  color: var(--text-secondary);
  margin-bottom: var(--spacing-lg);
  line-height: 1.7;
}

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

.testimonial-avatar {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--gradient-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: var(--font-size-lg);
}

.testimonial-info strong {
  display: block;
  font-weight: 600;
  font-size: var(--font-size-sm);
}

.testimonial-info span {
  font-size: var(--font-size-xs);
  color: var(--text-muted);
}

/* ===== CTA Section ===== */
.cta-section {
  position: relative;
  padding: var(--spacing-3xl) 0;
  overflow: hidden;
}

.cta-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--gradient-primary);
  opacity: 0.1;
}

.cta-content {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 700px;
  margin: 0 auto;
}

.cta-content h2 {
  margin-bottom: var(--spacing-md);
}

.cta-content p {
  font-size: var(--font-size-lg);
  margin-bottom: var(--spacing-xl);
}

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

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

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

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

.footer-brand {
  max-width: 300px;
}

.footer-brand .logo {
  margin-bottom: var(--spacing-md);
}

.footer-brand p {
  font-size: var(--font-size-sm);
  margin-bottom: var(--spacing-lg);
}

.footer-social {
  display: flex;
  gap: var(--spacing-sm);
}

.footer-social a {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-glass);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

.footer-social a:hover {
  background: var(--accent-blue);
  border-color: var(--accent-blue);
}

.footer-column h4 {
  font-size: var(--font-size-sm);
  font-weight: 600;
  margin-bottom: var(--spacing-md);
  color: var(--text-primary);
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.footer-links a {
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
}

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

.footer-bottom {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-sm);
  padding-top: var(--spacing-lg);
  border-top: 1px solid var(--border-default);
}

@media (min-width: 768px) {
  .footer-bottom {
    flex-direction: row;
    justify-content: space-between;
  }
}

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

.footer-bottom-links {
  display: flex;
  gap: var(--spacing-md);
}

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

.footer-bottom-links a:hover {
  color: var(--text-secondary);
}

/* ===== About Page Specific ===== */
.about-hero {
  padding-top: 120px;
  text-align: center;
}

.team-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-lg);
}

.team-card {
  padding: var(--spacing-xl);
  background: var(--bg-card);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-xl);
  text-align: center;
  transition: all var(--transition-base);
}

.team-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
}

.team-avatar {
  width: 100px;
  height: 100px;
  margin: 0 auto var(--spacing-md);
  border-radius: 50%;
  background: var(--gradient-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--font-size-4xl);
  font-weight: 700;
}

.team-card h4 {
  margin-bottom: var(--spacing-xs);
}

.team-card span {
  font-size: var(--font-size-sm);
  color: var(--accent-cyan);
}

/* ===== Contact Page Specific ===== */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-xl);
}

@media (min-width: 1024px) {
  .contact-grid {
    grid-template-columns: 1fr 1fr;
  }
}

.contact-form {
  padding: var(--spacing-xl);
  background: var(--bg-card);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-xl);
}

.form-group {
  margin-bottom: var(--spacing-md);
}

.form-group label {
  display: block;
  font-size: var(--font-size-sm);
  font-weight: 500;
  margin-bottom: var(--spacing-xs);
}

.form-input,
.form-textarea {
  width: 100%;
  padding: 14px 16px;
  background: var(--bg-glass);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-md);
  font-size: var(--font-size-base);
  color: var(--text-primary);
  transition: all var(--transition-fast);
}

.form-input:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--accent-blue);
  box-shadow: 0 0 0 3px rgba(74, 125, 255, 0.2);
}

.form-textarea {
  min-height: 150px;
  resize: vertical;
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
}

.contact-info-card {
  padding: var(--spacing-lg);
  background: var(--bg-card);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-xl);
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-md);
}

.contact-info-icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--gradient-primary);
  border-radius: var(--radius-md);
  font-size: 20px;
  flex-shrink: 0;
}

.contact-info-text h4 {
  margin-bottom: var(--spacing-xs);
}

.contact-info-text p {
  font-size: var(--font-size-sm);
}

.contact-info-text a {
  color: var(--accent-cyan);
}

/* ===== Page Specific Headers ===== */
.page-hero {
  padding: calc(72px + var(--spacing-3xl)) 0 var(--spacing-3xl);
  text-align: center;
  background: var(--gradient-hero);
}

.page-hero h1 {
  margin-bottom: var(--spacing-md);
}

.page-hero p {
  font-size: var(--font-size-lg);
  max-width: 700px;
  margin: 0 auto;
}

/* ===== Feature Details (for subpages) ===== */
.feature-details {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-2xl);
}

.feature-detail-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-xl);
  align-items: center;
}

@media (min-width: 1024px) {
  .feature-detail-row {
    grid-template-columns: 1fr 1fr;
  }
  
  .feature-detail-row.reverse {
    direction: rtl;
  }
  
  .feature-detail-row.reverse > * {
    direction: ltr;
  }
}

.feature-detail-content h3 {
  margin-bottom: var(--spacing-md);
}

.feature-detail-content p {
  margin-bottom: var(--spacing-lg);
}

.feature-detail-list {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.feature-detail-list li {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  font-size: var(--font-size-sm);
}

.feature-detail-list li::before {
  content: '✓';
  width: 20px;
  height: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(16, 185, 129, 0.2);
  color: var(--accent-green);
  border-radius: 50%;
  font-size: 12px;
  flex-shrink: 0;
}

.feature-detail-image {
  background: var(--bg-card);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-xl);
  padding: var(--spacing-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 300px;
}

.feature-detail-image-placeholder {
  width: 100%;
  height: 100%;
  min-height: 250px;
  background: var(--gradient-primary);
  opacity: 0.1;
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 48px;
}

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

.animate-fade-in-up {
  animation: fadeInUp 0.6s ease forwards;
}

.delay-100 { animation-delay: 100ms; }
.delay-200 { animation-delay: 200ms; }
.delay-300 { animation-delay: 300ms; }
.delay-400 { animation-delay: 400ms; }
.delay-500 { animation-delay: 500ms; }

/* ===== Responsive Utilities ===== */
.hide-mobile {
  display: none;
}

@media (min-width: 768px) {
  .hide-mobile {
    display: block;
  }
}

.hide-desktop {
  display: block;
}

@media (min-width: 1024px) {
  .hide-desktop {
    display: none;
  }
}