/* Factory Twin - Liquid Glass Design System */

:root {
  /* Color Palette */
  --primary: #3b82f6;
  --primary-light: #60a5fa;
  --primary-dark: #2563eb;
  --secondary: #8b5cf6;
  --accent: #06b6d4;
  --success: #10b981;
  --warning: #f59e0b;
  --danger: #ef4444;
  
  /* Glass Effect Colors */
  --glass-white: rgba(255, 255, 255, 0.1);
  --glass-border: rgba(255, 255, 255, 0.18);
  --glass-shadow: rgba(0, 0, 0, 0.1);
  
  /* Gradients */
  --gradient-primary: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  --gradient-secondary: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
  --gradient-tech: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
  --gradient-dark: linear-gradient(135deg, #1e3a8a 0%, #312e81 100%);
  
  /* Spacing */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;
  --spacing-2xl: 4rem;
  
  /* Border Radius - Universal Softness */
  --radius-2xl: 1.5rem;
  --radius-full: 9999px;
  
  /* Transitions */
  --transition-smooth: cubic-bezier(0.4, 0.0, 0.2, 1);
  --duration-fast: 200ms;
  --duration-normal: 300ms;
  --duration-slow: 500ms;
}

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

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
  line-height: 1.6;
  color: #e5e7eb;
  background: linear-gradient(135deg, #0f172a 0%, #1e1b4b 50%, #1e3a8a 100%);
  min-height: 100vh;
  overflow-x: hidden;
  position: relative;
}

/* Animated Background */
body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: 
    radial-gradient(circle at 20% 30%, rgba(99, 102, 241, 0.15) 0%, transparent 50%),
    radial-gradient(circle at 80% 70%, rgba(139, 92, 246, 0.15) 0%, transparent 50%),
    radial-gradient(circle at 50% 50%, rgba(6, 182, 212, 0.1) 0%, transparent 70%);
  animation: gradientShift 15s ease infinite;
  pointer-events: none;
  z-index: 0;
}

@keyframes gradientShift {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.7; }
}

/* Glass Container Mixin */
.glass {
  background: rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(20px) saturate(180%) brightness(110%);
  -webkit-backdrop-filter: blur(20px) saturate(180%) brightness(110%);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-2xl);
  box-shadow: 
    0 8px 32px rgba(0, 0, 0, 0.1),
    inset 0 1px 0 rgba(255, 255, 255, 0.1);
}

/* Header & Navigation */
header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: var(--spacing-md) 0;
  transition: all var(--duration-normal) var(--transition-smooth);
}

header.scrolled {
  background: rgba(15, 23, 42, 0.8);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
}

nav {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
  display: flex;
  justify-content: space-between;
  align-items: center;
  position: relative;
  z-index: 10;
}

.logo {
  font-size: 1.5rem;
  font-weight: 700;
  background: linear-gradient(135deg, #60a5fa, #a78bfa);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  transition: transform var(--duration-normal) var(--transition-smooth);
}

.logo:hover {
  transform: translateY(-2px);
}

.nav-links {
  display: flex;
  gap: var(--spacing-md);
  list-style: none;
  align-items: center;
}

.nav-links a {
  color: #e5e7eb;
  text-decoration: none;
  font-weight: 500;
  padding: 0.5rem 1rem;
  border-radius: var(--radius-full);
  transition: all var(--duration-normal) var(--transition-smooth);
  position: relative;
}

.nav-links a::before {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-full);
  opacity: 0;
  transition: opacity var(--duration-normal) var(--transition-smooth);
}

.nav-links a:hover::before,
.nav-links a.active::before {
  opacity: 1;
}

.nav-links a:hover {
  color: #ffffff;
  box-shadow: 0 4px 15px rgba(96, 165, 250, 0.3);
}

.nav-links a.active {
  color: #60a5fa;
}

/* Mobile Menu Toggle */
.mobile-menu-toggle {
  display: none;
  flex-direction: column;
  gap: 6px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
}

.mobile-menu-toggle span {
  width: 25px;
  height: 2px;
  background: #e5e7eb;
  border-radius: var(--radius-full);
  transition: all var(--duration-normal) var(--transition-smooth);
}

/* Container */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
  position: relative;
  z-index: 1;
}

/* Hero Section */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: var(--spacing-2xl) var(--spacing-lg);
  padding-top: calc(80px + var(--spacing-2xl));
}

.hero-content {
  max-width: 800px;
  animation: fadeInUp 1s var(--transition-smooth);
}

.hero h1 {
  font-size: clamp(2.5rem, 6vw, 4rem);
  font-weight: 800;
  margin-bottom: var(--spacing-md);
  background: linear-gradient(135deg, #ffffff, #60a5fa, #a78bfa);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1.2;
}

.hero p {
  font-size: clamp(1.1rem, 2vw, 1.3rem);
  margin-bottom: var(--spacing-xl);
  color: #cbd5e1;
  line-height: 1.8;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.875rem 2rem;
  border-radius: var(--radius-2xl);
  font-weight: 600;
  text-decoration: none;
  border: none;
  cursor: pointer;
  transition: all var(--duration-normal) var(--transition-smooth);
  font-size: 1rem;
  position: relative;
  overflow: hidden;
}

.btn::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  border-radius: var(--radius-full);
  background: rgba(255, 255, 255, 0.2);
  transform: translate(-50%, -50%);
  transition: width var(--duration-slow) var(--transition-smooth),
              height var(--duration-slow) var(--transition-smooth);
}

.btn:hover::before {
  width: 300px;
  height: 300px;
}

.btn > * {
  position: relative;
  z-index: 1;
}

.btn-primary {
  background: linear-gradient(135deg, #3b82f6, #8b5cf6);
  color: white;
  box-shadow: 0 10px 30px rgba(59, 130, 246, 0.3);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 15px 40px rgba(59, 130, 246, 0.4);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.1);
  color: white;
  backdrop-filter: blur(10px);
  border: 1px solid var(--glass-border);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.15);
  transform: translateY(-2px);
  box-shadow: 0 10px 30px rgba(255, 255, 255, 0.1);
}

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

/* Sections */
section {
  padding: var(--spacing-2xl) 0;
  position: relative;
  z-index: 1;
}

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

.section-title h2 {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  margin-bottom: var(--spacing-md);
  background: linear-gradient(135deg, #ffffff, #60a5fa);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.section-title p {
  font-size: 1.1rem;
  color: #cbd5e1;
  max-width: 600px;
  margin: 0 auto;
}

/* Cards Grid */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-lg);
  margin-top: var(--spacing-xl);
}

.card {
  background: rgba(255, 255, 255, 0.05);
  backdrop-filter: blur(20px) saturate(180%) brightness(110%);
  -webkit-backdrop-filter: blur(20px) saturate(180%) brightness(110%);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-2xl);
  padding: var(--spacing-xl);
  transition: all var(--duration-normal) var(--transition-smooth);
  position: relative;
  overflow: hidden;
}

.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, #3b82f6, #8b5cf6, #06b6d4);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--duration-slow) var(--transition-smooth);
}

.card:hover::before {
  transform: scaleX(1);
}

.card:hover {
  transform: translateY(-8px);
  box-shadow: 
    0 20px 60px rgba(59, 130, 246, 0.2),
    inset 0 1px 0 rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.3);
}

.card-icon {
  width: 60px;
  height: 60px;
  background: linear-gradient(135deg, #3b82f6, #8b5cf6);
  border-radius: var(--radius-2xl);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: var(--spacing-md);
  box-shadow: 0 10px 30px rgba(59, 130, 246, 0.3);
}

.card h3 {
  font-size: 1.5rem;
  margin-bottom: var(--spacing-sm);
  color: #ffffff;
}

.card p {
  color: #cbd5e1;
  line-height: 1.8;
}

/* Features Grid */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-lg);
  margin-top: var(--spacing-xl);
}

.feature-item {
  text-align: center;
  padding: var(--spacing-lg);
  background: rgba(255, 255, 255, 0.03);
  border-radius: var(--radius-2xl);
  border: 1px solid rgba(255, 255, 255, 0.1);
  transition: all var(--duration-normal) var(--transition-smooth);
}

.feature-item:hover {
  background: rgba(255, 255, 255, 0.06);
  transform: translateY(-5px);
  box-shadow: 0 15px 40px rgba(59, 130, 246, 0.15);
}

.feature-icon {
  font-size: 2.5rem;
  margin-bottom: var(--spacing-md);
  display: inline-block;
}

.feature-item h4 {
  font-size: 1.2rem;
  margin-bottom: var(--spacing-sm);
  color: #ffffff;
}

.feature-item p {
  color: #94a3b8;
  font-size: 0.95rem;
}

/* Contact Form */
.contact-form {
  max-width: 600px;
  margin: var(--spacing-xl) auto;
  background: rgba(255, 255, 255, 0.05);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-2xl);
  padding: var(--spacing-xl);
}

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

.form-group label {
  display: block;
  margin-bottom: var(--spacing-xs);
  color: #e5e7eb;
  font-weight: 500;
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 0.875rem 1.25rem;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: var(--radius-2xl);
  color: #ffffff;
  font-size: 1rem;
  font-family: inherit;
  transition: all var(--duration-normal) var(--transition-smooth);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  outline: none;
  border-color: #3b82f6;
  background: rgba(255, 255, 255, 0.12);
  box-shadow: 
    0 0 0 3px rgba(59, 130, 246, 0.1),
    inset 0 2px 10px rgba(59, 130, 246, 0.1);
}

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

/* Footer */
footer {
  background: rgba(15, 23, 42, 0.8);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding: var(--spacing-xl) 0 var(--spacing-lg);
  margin-top: var(--spacing-2xl);
  position: relative;
  z-index: 1;
}

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

.footer-section h3 {
  margin-bottom: var(--spacing-md);
  color: #60a5fa;
}

.footer-section p,
.footer-section li {
  color: #94a3b8;
  line-height: 1.8;
}

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

.footer-section ul li {
  margin-bottom: var(--spacing-xs);
}

.footer-section a {
  color: #94a3b8;
  text-decoration: none;
  transition: color var(--duration-fast) var(--transition-smooth);
}

.footer-section a:hover {
  color: #60a5fa;
}

.footer-bottom {
  text-align: center;
  padding-top: var(--spacing-lg);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  color: #64748b;
}

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

.fade-in-up {
  animation: fadeInUp 0.8s var(--transition-smooth);
}

/* Responsive Design */
@media (max-width: 768px) {
  .nav-links {
    position: fixed;
    top: 0;
    right: -100%;
    width: 70%;
    height: 100vh;
    background: rgba(15, 23, 42, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    flex-direction: column;
    justify-content: center;
    align-items: center;
    transition: right var(--duration-normal) var(--transition-smooth);
    box-shadow: -5px 0 20px rgba(0, 0, 0, 0.3);
  }
  
  .nav-links.active {
    right: 0;
  }
  
  .mobile-menu-toggle {
    display: flex;
    z-index: 1001;
  }
  
  .mobile-menu-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(8px, 8px);
  }
  
  .mobile-menu-toggle.active span:nth-child(2) {
    opacity: 0;
  }
  
  .mobile-menu-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -7px);
  }
  
  .cards-grid {
    grid-template-columns: 1fr;
  }
  
  .cta-buttons {
    flex-direction: column;
    align-items: stretch;
  }
  
  .btn {
    width: 100%;
    justify-content: center;
  }
}

/* Page Specific Styles */
.page-header {
  padding-top: calc(80px + var(--spacing-2xl));
  padding-bottom: var(--spacing-xl);
  text-align: center;
}

.page-header h1 {
  font-size: clamp(2rem, 5vw, 3.5rem);
  background: linear-gradient(135deg, #ffffff, #60a5fa);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: var(--spacing-md);
}

.page-header p {
  font-size: 1.2rem;
  color: #cbd5e1;
  max-width: 700px;
  margin: 0 auto;
}

/* Content Section */
.content-section {
  background: rgba(255, 255, 255, 0.05);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-2xl);
  padding: var(--spacing-xl);
  margin-bottom: var(--spacing-lg);
}

.content-section h2 {
  color: #60a5fa;
  margin-bottom: var(--spacing-md);
  font-size: 1.8rem;
}

.content-section h3 {
  color: #a78bfa;
  margin-top: var(--spacing-lg);
  margin-bottom: var(--spacing-sm);
  font-size: 1.4rem;
}

.content-section p {
  color: #cbd5e1;
  line-height: 1.8;
  margin-bottom: var(--spacing-md);
}

.content-section ul {
  list-style: none;
  padding-left: 0;
}

.content-section ul li {
  padding-left: 1.5rem;
  margin-bottom: var(--spacing-sm);
  color: #cbd5e1;
  position: relative;
}

.content-section ul li::before {
  content: '→';
  position: absolute;
  left: 0;
  color: #60a5fa;
  font-weight: bold;
}

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

.mt-xl {
  margin-top: var(--spacing-xl);
}

.mb-xl {
  margin-bottom: var(--spacing-xl);
}