/* 
   Modern Portfolio Styles 2024-2025
   Incorporating latest design trends: Glassmorphism, Glow Effects, Micro-interactions
*/

/* ===== Modern Variables ===== */
:root {
  /* Modern Color Palette - Cyberpunk/Futuristic */
  --primary-glow: #00f5ff;
  --secondary-glow: #b347d9;
  --accent-glow: #32ff7e;
  --warning-glow: #ff6b6b;
  --success-glow: #4ecdc4;
  
  /* Dark Theme Enhanced */
  --bg-primary: #0a0a0a;
  --bg-secondary: #1a1a1a;
  --bg-tertiary: #2d2d2d;
  --bg-glass: rgba(255, 255, 255, 0.05);
  --bg-glass-hover: rgba(255, 255, 255, 0.1);
  --bg-glass-active: rgba(255, 255, 255, 0.15);
  
  /* Text Colors */
  --text-primary: #ffffff;
  --text-secondary: #b0b0b0;
  --text-tertiary: #808080;
  --text-accent: var(--primary-glow);
  
  /* Glass Effects */
  --glass-blur: blur(20px);
  --glass-border: rgba(255, 255, 255, 0.1);
  --glass-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
  
  /* Glow Effects */
  --glow-sm: 0 0 5px currentColor;
  --glow-md: 0 0 10px currentColor, 0 0 20px currentColor;
  --glow-lg: 0 0 10px currentColor, 0 0 20px currentColor, 0 0 40px currentColor;
  --glow-xl: 0 0 20px currentColor, 0 0 40px currentColor, 0 0 80px currentColor;
  
  /* Modern Typography */
  --font-heading: 'Montserrat', sans-serif;
  --font-body: 'Inter', sans-serif;
  --font-mono: 'Roboto Mono', monospace;
  
  /* Enhanced Spacing */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 2rem;
  --space-xl: 3rem;
  --space-2xl: 4rem;
  --space-3xl: 6rem;
  
  /* Modern Borders */
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-xl: 32px;
  --radius-full: 9999px;
  
  /* Smooth Transitions */
  --transition-fast: 0.15s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-bounce: 0.4s cubic-bezier(0.68, -0.55, 0.265, 1.55);
  
  /* Modern Shadows */
  --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.1);
  --shadow-md: 0 4px 8px rgba(0, 0, 0, 0.15);
  --shadow-lg: 0 8px 16px rgba(0, 0, 0, 0.2);
  --shadow-xl: 0 16px 32px rgba(0, 0, 0, 0.25);
  --shadow-inner: inset 0 2px 4px rgba(0, 0, 0, 0.1);
  
  /* Neumorphism */
  --neuro-shadow: 8px 8px 16px rgba(0, 0, 0, 0.3), -8px -8px 16px rgba(255, 255, 255, 0.05);
  --neuro-inset: inset 8px 8px 16px rgba(0, 0, 0, 0.3), inset -8px -8px 16px rgba(255, 255, 255, 0.05);
  
  /* Container Width */
  --container-width: 1200px;
  
  /* Z-index layers */
  --z-back: -1;
  --z-normal: 1;
  --z-tooltip: 10;
  --z-fixed: 100;
  --z-modal: 1000;
}

/* Light Theme Variables */
.light-theme {
  --bg-primary: #f5f5f5;
  --bg-secondary: #ffffff;
  --bg-tertiary: #e0e0e0;
  --text-primary: #333333;
  --text-secondary: #555555;
  --text-tertiary: #777777;
  --shadow-color: rgba(0, 0, 0, 0.1);
  --overlay-color: rgba(255, 255, 255, 0.8);
}

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

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

body {
  font-family: var(--font-body);
  background: linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
  transition: all var(--transition-normal);
  position: relative;
}

/* Animated Background */
body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: 
    radial-gradient(circle at 20% 20%, rgba(0, 245, 255, 0.1) 0%, transparent 50%),
    radial-gradient(circle at 80% 80%, rgba(179, 71, 217, 0.1) 0%, transparent 50%),
    radial-gradient(circle at 40% 60%, rgba(50, 255, 126, 0.05) 0%, transparent 50%);
  z-index: -1;
  animation: backgroundShift 20s ease-in-out infinite;
}

@keyframes backgroundShift {
  0%, 100% { opacity: 0.5; }
  50% { opacity: 0.8; }
}

/* ===== Modern Typography ===== */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: var(--space-md);
}

h1 {
  font-size: clamp(2.5rem, 8vw, 5rem);
  line-height: 1.1;
  background: linear-gradient(135deg, var(--primary-glow), var(--secondary-glow));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  text-shadow: var(--glow-lg);
  animation: textGlow 3s ease-in-out infinite alternate;
}

@keyframes textGlow {
  0% { filter: brightness(1); }
  100% { filter: brightness(1.2); }
}

h2 {
  font-size: clamp(2rem, 5vw, 3.5rem);
  line-height: 1.2;
  color: var(--text-primary);
  text-shadow: var(--glow-md);
}

h3 {
  font-size: clamp(1.5rem, 4vw, 2.5rem);
  line-height: 1.3;
  color: var(--text-primary);
}

p {
  font-size: clamp(1rem, 2vw, 1.125rem);
  line-height: 1.7;
  color: var(--text-secondary);
  margin-bottom: var(--space-md);
}

/* ===== Glassmorphism Components ===== */
.glass-card {
  background: var(--bg-glass);
  backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  box-shadow: var(--glass-shadow);
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
}

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

.glass-card:hover {
  background: var(--bg-glass-hover);
  transform: translateY(-5px);
  box-shadow: var(--glass-shadow), 0 20px 40px rgba(0, 0, 0, 0.2);
}

.glass-nav {
  background: var(--bg-glass);
  backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-full);
  padding: var(--space-sm) var(--space-lg);
  position: sticky;
  top: var(--space-md);
  z-index: 100;
  transition: all var(--transition-normal);
}

/* ===== Modern Buttons ===== */
.btn-modern {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-md) var(--space-xl);
  background: var(--bg-glass);
  backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-full);
  color: var(--text-primary);
  font-weight: 600;
  text-decoration: none;
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
  cursor: pointer;
}

.btn-modern::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.1), transparent);
  transition: left var(--transition-slow);
}

.btn-modern:hover::before {
  left: 100%;
}

.btn-modern:hover {
  background: var(--bg-glass-hover);
  transform: translateY(-2px);
  box-shadow: var(--glow-md), var(--shadow-lg);
}

.btn-modern:active {
  transform: translateY(0);
}

.btn-glow {
  background: linear-gradient(135deg, var(--primary-glow), var(--secondary-glow));
  color: var(--bg-primary);
  box-shadow: var(--glow-md);
  border: none;
}

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

.btn-neuro {
  background: var(--bg-secondary);
  box-shadow: var(--neuro-shadow);
  border: none;
}

.btn-neuro:hover {
  box-shadow: var(--neuro-inset);
}

/* ===== Interactive Elements ===== */
.interactive-card {
  background: var(--bg-glass);
  backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  transition: all var(--transition-bounce);
  cursor: pointer;
  position: relative;
  overflow: hidden;
}

.interactive-card::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  background: radial-gradient(circle, var(--primary-glow), transparent);
  opacity: 0;
  transition: all var(--transition-slow);
  transform: translate(-50%, -50%);
}

.interactive-card:hover::after {
  width: 200%;
  height: 200%;
  opacity: 0.1;
}

.interactive-card:hover {
  transform: scale(1.02) rotateY(5deg);
  box-shadow: var(--glow-lg), var(--shadow-xl);
}

/* ===== Glow Effects ===== */
.glow-text {
  color: var(--primary-glow);
  text-shadow: var(--glow-md);
  animation: pulseGlow 2s ease-in-out infinite alternate;
}

@keyframes pulseGlow {
  0% { text-shadow: var(--glow-md); }
  100% { text-shadow: var(--glow-lg); }
}

.glow-border {
  border: 1px solid var(--primary-glow);
  box-shadow: var(--glow-sm);
  animation: borderGlow 3s ease-in-out infinite alternate;
}

@keyframes borderGlow {
  0% { 
    border-color: var(--primary-glow);
    box-shadow: var(--glow-sm);
  }
  50% { 
    border-color: var(--secondary-glow);
    box-shadow: var(--glow-md);
  }
  100% { 
    border-color: var(--accent-glow);
    box-shadow: var(--glow-lg);
  }
}

/* ===== Micro-Interactions ===== */
.hover-float {
  transition: transform var(--transition-normal);
}

.hover-float:hover {
  transform: translateY(-10px);
}

.hover-tilt {
  transition: transform var(--transition-normal);
}

.hover-tilt:hover {
  transform: perspective(1000px) rotateX(5deg) rotateY(5deg);
}

.hover-scale {
  transition: transform var(--transition-bounce);
}

.hover-scale:hover {
  transform: scale(1.05);
}

/* ===== Modern Header ===== */
.modern-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: var(--space-md);
  background: var(--bg-glass);
  backdrop-filter: var(--glass-blur);
  border-bottom: 1px solid var(--glass-border);
  transition: all var(--transition-normal);
}

.modern-header.scrolled {
  background: var(--bg-glass-active);
  box-shadow: var(--shadow-lg);
}

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

.nav-link {
  color: var(--text-secondary);
  text-decoration: none;
  font-weight: 500;
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--radius-md);
  transition: all var(--transition-normal);
  position: relative;
}

.nav-link::before {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--primary-glow), var(--secondary-glow));
  transition: all var(--transition-normal);
  transform: translateX(-50%);
}

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

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

/* ===== Modern Sections ===== */
.modern-section {
  padding: var(--space-3xl) var(--space-xl);
  position: relative;
  overflow: hidden;
}

.modern-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

/* ===== Scroll Animations ===== */
@keyframes slideInUp {
  from {
    opacity: 0;
    transform: translateY(50px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes slideInLeft {
  from {
    opacity: 0;
    transform: translateX(-50px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes slideInRight {
  from {
    opacity: 0;
    transform: translateX(50px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

.animate-on-scroll {
  opacity: 0;
  transform: translateY(50px);
  transition: all var(--transition-slow);
}

.animate-on-scroll.animated {
  animation: slideInUp 0.8s ease-out forwards;
}

/* ===== Contact Section Layout ===== */
.contact-grid {
  grid-template-columns: 1fr 1fr;
  align-items: start;
}

.contact-info {
  height: fit-content;
}

.contact-form-container {
  height: fit-content;
}

.social-btn {
  transition: all var(--transition-normal);
}

.social-btn:hover {
  transform: translateY(-2px);
  box-shadow: var(--glow-md);
}

.contact-info h4 {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: var(--space-md);
}

/* ===== Responsive Design ===== */
@media (max-width: 768px) {
  .modern-section {
    padding: var(--space-2xl) var(--space-md);
  }
  
  .glass-card {
    padding: var(--space-lg);
  }
  
  .btn-modern {
    padding: var(--space-sm) var(--space-lg);
  }
  
  .nav-menu {
    gap: var(--space-md);
  }
  
  .contact-grid {
    grid-template-columns: 1fr;
    gap: var(--space-xl);
  }
}

/* ===== Utility Classes ===== */
.text-glow { color: var(--primary-glow); text-shadow: var(--glow-md); }
.text-secondary-glow { color: var(--secondary-glow); text-shadow: var(--glow-md); }
.text-accent-glow { color: var(--accent-glow); text-shadow: var(--glow-md); }

.mb-xl { margin-bottom: var(--space-xl); }
.mb-2xl { margin-bottom: var(--space-2xl); }
.mb-3xl { margin-bottom: var(--space-3xl); }

.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.justify-center { justify-content: center; }
.gap-md { gap: var(--space-md); }
.gap-lg { gap: var(--space-lg); }
.gap-xl { gap: var(--space-xl); }

.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.w-full { width: 100%; }
.max-w-4xl { max-width: 64rem; }
.mx-auto { margin-left: auto; margin-right: auto; }

.grid { display: grid; }
.grid-cols-1 { grid-template-columns: repeat(1, 1fr); }
.grid-cols-2 { grid-template-columns: repeat(2, 1fr); }
.grid-cols-3 { grid-template-columns: repeat(3, 1fr); }

@media (max-width: 768px) {
  .grid-cols-2, .grid-cols-3 {
    grid-template-columns: 1fr;
  }
}