/* ============================================
   CSS Variables & Root Configuration
   ============================================ */
   :root {
    /* Color Palette */
    --primary-color: #00ffff;
    --secondary-color: #9900ff;
    --accent-color: #ff00ff;
    --dark-bg: #0B0E32;
    --darker-bg: #000000;
    --card-bg: rgba(255, 255, 255, 0.05);
    --border-color: rgba(255, 255, 255, 0.1);
    --text-primary: #ffffff;
    --text-secondary: #b8b8b8;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-xxl: 4rem;
    
    /* Layout */
    --content-width: 85%;
    --max-width: 1200px;
    --border-radius-sm: 5px;
    --border-radius-md: 10px;
    --border-radius-lg: 15px;
    --border-radius-full: 50%;
    
    /* Shadows */
    --shadow-primary: 0 0 15px var(--primary-color);
    --shadow-primary-lg: 0 0 30px var(--primary-color);
    --shadow-primary-xl: 0 0 35px var(--primary-color), 0 0 70px #FFFFFF;
    --shadow-card: 0 0 10px var(--primary-color);
    --shadow-card-hover: 0 0 16px var(--primary-color);
    
    /* Transitions */
    --transition-fast: 0.3s ease;
    --transition-medium: 0.5s ease;
    --transition-slow: 0.8s ease;
    
    /* Typography */
    --font-family: 'Poppins', sans-serif;
    --font-size-base: 1rem;
    --font-size-lg: 1.5rem;
    --font-size-xl: 2rem;
    --font-size-xxl: 2.5rem;
  }
  
  
  /* ============================================
     Reset & Base Styles
     ============================================ */
  * {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: var(--font-family);
  }
  
  html {
    scroll-behavior: smooth;
  }
  
  body {
    background: linear-gradient(135deg, var(--dark-bg) 0%, var(--darker-bg) 100%);
    min-height: 100vh;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    line-height: 1.6;
    overflow-x: hidden;
    position: relative;
  }
  
  /* Animated Background Effect */
  body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
      radial-gradient(circle at 20% 50%, rgba(0, 255, 255, 0.1) 0%, transparent 50%),
      radial-gradient(circle at 80% 80%, rgba(153, 0, 255, 0.1) 0%, transparent 50%);
    pointer-events: none;
    z-index: -1;
    animation: bgPulse 8s ease-in-out infinite;
  }
  
  @keyframes bgPulse {
    0%, 100% { opacity: 0.5; }
    50% { opacity: 0.8; }
  }
  
  
  /* ============================================
     Layout Container
     ============================================ */
  .container {
    width: var(--content-width);
    max-width: var(--max-width);
    padding: var(--spacing-lg) 0;
    position: relative;
    z-index: 1;
  }
  
  
  /* ============================================
     Hero Section
     ============================================ */
  .hero-section {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xxl);
    align-items: center;
    margin-bottom: var(--spacing-xxl);
    padding: var(--spacing-lg);
  }
  
  .intro-content h1 {
    font-size: var(--font-size-xxl);
    margin-bottom: var(--spacing-md);
    background: linear-gradient(45deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: 600;
    line-height: 1.2;
  }
  
  .description {
    color: var(--text-secondary);
    font-size: 1.1rem;
    margin-top: var(--spacing-sm);
    line-height: 1.8;
  }
  
  
  /* ============================================
     Social Links
     ============================================ */
  .social-links {
    display: flex;
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
  }
  
  .social-links a {
    font-size: 1.8rem;
    text-decoration: none;
    color: var(--primary-color);
    transition: all var(--transition-fast);
    position: relative;
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--border-radius-full);
    background: var(--card-bg);
    backdrop-filter: blur(10px);
    border: 2px solid transparent;
  }
  
  .social-links a::before {
    content: '';
    position: absolute;
    inset: -2px;
    border-radius: var(--border-radius-full);
    background: linear-gradient(45deg, var(--primary-color), var(--secondary-color));
    z-index: -1;
    opacity: 0;
    transition: opacity var(--transition-fast);
  }
  
  .social-links a:hover {
    transform: translateY(-8px) scale(1.1);
    box-shadow: var(--shadow-primary);
    color: var(--text-primary);
  }
  
  .social-links a:hover::before {
    opacity: 1;
  }
  
  
  /* ============================================
     Profile Section
     ============================================ */
  .profile-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-xl);
  }
  
  .profile-img {
    width: 100%;
    max-width: 350px;
    border-radius: var(--border-radius-full);
    border: 8px solid var(--primary-color);
    box-shadow: var(--shadow-primary-lg);
    transition: all var(--transition-fast);
    transform-style: preserve-3d;
    position: relative;
  }
  
  .profile-img::after {
    content: '';
    position: absolute;
    inset: -8px;
    border-radius: var(--border-radius-full);
    background: linear-gradient(45deg, var(--primary-color), var(--secondary-color), var(--accent-color));
    z-index: -1;
    opacity: 0;
    transition: opacity var(--transition-fast);
  }
  
  .profile-img:hover {
    box-shadow: var(--shadow-primary-xl);
    animation: floatProfile 2s ease-in-out infinite;
  }
  
  .profile-img:hover::after {
    opacity: 0.5;
    animation: rotateBorder 3s linear infinite;
  }
  
  @keyframes floatProfile {
    0%, 100% { transform: translateY(0) scale(1); }
    50% { transform: translateY(-15px) scale(1.02); }
  }
  
  @keyframes rotateBorder {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
  }
  
  
  /* ============================================
     Profile Buttons
     ============================================ */
  .profile-buttons {
    display: flex;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-xl);
  }
  
  .profile-buttons button {
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--border-radius-sm);
    cursor: pointer;
    font-size: var(--font-size-base);
    font-weight: 500;
    transition: all var(--transition-medium);
    position: relative;
    overflow: hidden;
    border: none;
  }
  
  .profile-buttons button::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: var(--border-radius-full);
    background: rgba(255, 255, 255, 0.3);
    transition: width 0.6s, height 0.6s, top 0.6s, left 0.6s;
    transform: translate(-50%, -50%);
  }
  
  .profile-buttons button:hover::before {
    width: 300px;
    height: 300px;
  }
  
  .call-btn {
    background: var(--primary-color);
    color: var(--darker-bg);
    box-shadow: var(--shadow-primary);
    transition: all var(--transition-fast);
  }
  
  .call-btn:hover {
    background: var(--secondary-color);
    transform: translateY(-3px);
    box-shadow: 0 0 25px var(--secondary-color);
  }
  
  .message-btn {
    background: transparent;
    color: var(--primary-color);
    border: 3px solid var(--primary-color);
    box-shadow: var(--shadow-primary);
  }
  
  .message-btn:hover {
    background: var(--primary-color);
    color: var(--darker-bg);
    transform: perspective(500px) translate3d(5px, 0, 10px) rotateY(10deg);
    border-color: var(--primary-color);
  }
  
  
  /* ============================================
     Skills Section
     ============================================ */
  .skills-section {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-lg);
    margin-top: var(--spacing-xxl);
  }
  
  .skill-card {
    background: var(--card-bg);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius-lg);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border-color);
    transition: all var(--transition-fast);
    box-shadow: var(--shadow-card);
    position: relative;
    overflow: hidden;
  }
  
  .skill-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(0, 255, 255, 0.1), transparent);
    transition: left 0.5s;
  }
  
  .skill-card:hover::before {
    left: 100%;
  }
  
  .skill-card:hover {
    transform: translateY(-10px) scale(1.02);
    box-shadow: var(--shadow-card-hover);
    border-color: var(--primary-color);
  }
  
  .skill-card h2 {
    color: var(--primary-color);
    margin-bottom: var(--spacing-md);
    font-size: var(--font-size-lg);
    position: relative;
    padding-bottom: var(--spacing-xs);
    font-weight: 600;
  }
  
  .skill-card h2::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 50px;
    height: 3px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    border-radius: 2px;
    transition: width var(--transition-fast);
  }
  
  .skill-card:hover h2::after {
    width: 100px;
  }
  
  
  /* ============================================
     Skill List
     ============================================ */
  .skill-list {
    list-style: none;
  }
  
  .skill-list li {
    padding: 0.8rem 0;
    display: flex;
    align-items: center;
    gap: 0.8rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    transition: all var(--transition-fast);
    position: relative;
    padding-left: 0;
  }
  
  .skill-list li:last-child {
    border-bottom: none;
  }
  
  .skill-list li::before {
    content: '';
    position: absolute;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-color);
    bottom: 0;
    transition: width var(--transition-fast);
  }
  
  .skill-list li:hover::before {
    width: 30px;
  }
  
  .skill-list li:hover {
    padding-left: var(--spacing-sm);
    color: var(--primary-color);
  }
  
  .skill-list li i {
    color: var(--primary-color);
    font-size: 1.2rem;
    transition: transform var(--transition-fast);
  }
  
  .skill-list li:hover i {
    transform: scale(1.2) rotate(10deg);
  }
  
  
  /* ============================================
     Animations
     ============================================ */
  @keyframes fadeIn {
    from { 
      opacity: 0; 
      transform: translateY(30px);
    }
    to { 
      opacity: 1; 
      transform: translateY(0);
    }
  }
  
  .fade-in {
    animation: fadeIn var(--transition-slow) ease forwards;
  }
  
  /* Stagger animation for multiple elements */
  .hero-section.fade-in {
    animation-delay: 0.1s;
  }
  
  .skills-section.fade-in {
    animation-delay: 0.3s;
  }
  
  
  /* ============================================
     Responsive Design
     ============================================ */
  @media (max-width: 968px) {
    :root {
      --content-width: 90%;
      --font-size-xxl: 2rem;
    }
    
    .hero-section {
      gap: var(--spacing-xl);
    }
  }
  
  @media (max-width: 768px) {
    :root {
      --font-size-xxl: 1.8rem;
      --font-size-xl: 1.5rem;
    }
    
    .hero-section {
      grid-template-columns: 1fr;
      text-align: center;
      gap: var(--spacing-lg);
    }
  
    .social-links {
      justify-content: center;
    }
  
    .profile-img {
      max-width: 280px;
    }
  
    .profile-buttons {
      flex-wrap: wrap;
      justify-content: center;
    }
    
    .skills-section {
      grid-template-columns: 1fr;
    }
  }
  
  @media (max-width: 480px) {
    :root {
      --content-width: 95%;
      --font-size-xxl: 1.5rem;
      --spacing-xxl: 2rem;
    }
    
    .profile-img {
      max-width: 220px;
    }
    
    .social-links a {
      width: 45px;
      height: 45px;
      font-size: 1.5rem;
    }
  }
  
  
  /* ============================================
     Utility Classes
     ============================================ */
  .gradient-text {
    background: linear-gradient(45deg, var(--primary-color), var(--secondary-color), var(--accent-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
  }
  
  .text-glow {
    text-shadow: 0 0 10px var(--primary-color);
  }
  
  /* Scrollbar Styling */
  ::-webkit-scrollbar {
    width: 10px;
  }
  
  ::-webkit-scrollbar-track {
    background: var(--dark-bg);
  }
  
  ::-webkit-scrollbar-thumb {
    background: linear-gradient(180deg, var(--primary-color), var(--secondary-color));
    border-radius: 10px;
  }
  
  ::-webkit-scrollbar-thumb:hover {
    background: var(--primary-color);
  }