/* Global Portfolio Styles - Unified Design System */

:root {
  /* Light Theme Colors */
  --bg-primary-light: #ffffff;
  --bg-secondary-light: #f8fafc;
  --text-primary-light: #1f2937;
  --text-secondary-light: #6b7280;
  --border-light: #e5e7eb;
  
  /* Dark Theme Colors */
  --bg-primary-dark: #111827;
  --bg-secondary-dark: #1f2937;
  --text-primary-dark: #f9fafb;
  --text-secondary-dark: #d1d5db;
  --border-dark: #374151;
  
  /* Accent Colors */
  --accent-orange: #ff6b35;
  --accent-blue: #667eea;
  --accent-purple: #764ba2;
  --accent-green: #00b894;
  
  /* Gradients */
  --gradient-primary: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  --gradient-accent: linear-gradient(135deg, #ff6b35 0%, #f093fb 100%);
  --gradient-success: linear-gradient(135deg, #00b894 0%, #00a085 100%);
}

/* Theme Variables */
[data-theme="light"] {
  --bg-primary: var(--bg-primary-light);
  --bg-secondary: var(--bg-secondary-light);
  --text-primary: var(--text-primary-light);
  --text-secondary: var(--text-secondary-light);
  --border-color: var(--border-light);
}

[data-theme="dark"] {
  --bg-primary: var(--bg-primary-dark);
  --bg-secondary: var(--bg-secondary-dark);
  --text-primary: var(--text-primary-dark);
  --text-secondary: var(--text-secondary-dark);
  --border-color: var(--border-dark);
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', sans-serif;
  line-height: 1.6;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  transition: all 0.3s ease;
  overflow-x: hidden;
}

/* Typography */
.heading-primary {
  font-family: 'Space Grotesk', sans-serif;
  font-size: clamp(2rem, 5vw, 4rem);
  font-weight: 700;
  line-height: 1.1;
  margin-bottom: 1rem;
}

.heading-secondary {
  font-family: 'Space Grotesk', sans-serif;
  font-size: clamp(1.5rem, 4vw, 2.5rem);
  font-weight: 600;
  margin-bottom: 0.75rem;
}

.text-large {
  font-size: clamp(1rem, 2.5vw, 1.25rem);
  color: var(--text-secondary);
}

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

/* Layout Components */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1rem;
}

.section-padding {
  padding: 4rem 1rem;
}

/* Navigation */
.nav-unified {
  position: fixed;
  top: 0;
  width: 100%;
  z-index: 1000;
  background-color: rgba(17, 24, 39, 0.9);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border-color);
  transition: all 0.3s ease;
}

[data-theme="light"] .nav-unified {
  background-color: rgba(255, 255, 255, 0.9);
}

.nav-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem;
  max-width: 1200px;
  margin: 0 auto;
}

.nav-logo {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-primary);
  text-decoration: none;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.nav-links {
  display: flex;
  gap: 2rem;
  align-items: center;
}

.nav-link {
  color: var(--text-secondary);
  text-decoration: none;
  font-weight: 500;
  transition: color 0.3s ease;
  position: relative;
}

.nav-link:hover,
.nav-link.active {
  color: var(--accent-orange);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--gradient-accent);
  transition: width 0.3s ease;
}

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

/* Controls */
.controls {
  display: flex;
  gap: 0.5rem;
  align-items: center;
}

.control-btn {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  padding: 0.5rem;
  border-radius: 0.5rem;
  cursor: pointer;
  transition: all 0.3s ease;
  font-size: 0.875rem;
}

.control-btn:hover {
  background-color: var(--accent-orange);
  color: white;
  border-color: var(--accent-orange);
}

.language-selector {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  padding: 0.5rem;
  border-radius: 0.5rem;
  font-size: 0.875rem;
  cursor: pointer;
}

/* Buttons */
.btn-primary {
  background: var(--gradient-primary);
  color: white;
  border: none;
  padding: 0.75rem 1.5rem;
  border-radius: 0.5rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 25px rgba(102, 126, 234, 0.3);
}

.btn-secondary {
  background-color: transparent;
  color: var(--text-primary);
  border: 2px solid var(--border-color);
  padding: 0.75rem 1.5rem;
  border-radius: 0.5rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.btn-secondary:hover {
  border-color: var(--accent-orange);
  color: var(--accent-orange);
  transform: translateY(-2px);
}

/* Cards */
.card {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 1rem;
  padding: 1.5rem;
  transition: all 0.3s ease;
}

.card:hover {
  transform: translateY(-5px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

[data-theme="dark"] .card:hover {
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

.card-highlighted {
  border-left: 4px solid var(--accent-orange);
}

/* Footer */
.footer-unified {
  background-color: var(--bg-secondary);
  border-top: 1px solid var(--border-color);
  padding: 2rem 1rem;
  margin-top: auto;
}

.footer-content {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
}

.footer-social {
  display: flex;
  gap: 1rem;
}

.footer-social a {
  color: var(--text-secondary);
  font-size: 1.25rem;
  transition: color 0.3s ease;
}

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

.footer-copyright {
  color: var(--text-secondary);
  font-size: 0.875rem;
}

/* Animations */
.fade-in {
  animation: fadeIn 0.6s ease-out;
}

.slide-up {
  animation: slideUp 0.6s ease-out;
}

@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Grid Layouts */
.grid-auto {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
}

/* Responsive Design */
@media (max-width: 768px) {
  .nav-content {
    flex-direction: column;
    gap: 1rem;
  }
  
  .nav-links {
    gap: 1rem;
  }
  
  .footer-content {
    flex-direction: column;
    text-align: center;
  }
  
  .section-padding {
    padding: 2rem 1rem;
  }
  
  .controls {
    position: fixed;
    top: 1rem;
    right: 1rem;
    z-index: 1001;
  }
}

/* Utilities */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.mb-1 { margin-bottom: 0.25rem; }
.mb-2 { margin-bottom: 0.5rem; }
.mb-4 { margin-bottom: 1rem; }
.mb-8 { margin-bottom: 2rem; }

.mt-1 { margin-top: 0.25rem; }
.mt-2 { margin-top: 0.5rem; }
.mt-4 { margin-top: 1rem; }
.mt-8 { margin-top: 2rem; }

.hidden { display: none; }
.block { display: block; }
.flex { display: flex; }
.grid { display: grid; }

.w-full { width: 100%; }
.h-full { height: 100%; }
.min-h-screen { min-height: 100vh; }

.gap-2 { gap: 0.5rem; }
.gap-4 { gap: 1rem; }
.gap-8 { gap: 2rem; }

.items-center { align-items: center; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }