body {
      box-sizing: border-box;
    }
    
    :root {
      --navy: #0B1C2D;
      --white: #FFFFFF;
      --emerald: #1FA971;
      --gold: #C9A24D;
      --light-gray: #F2F4F7;
    }
    
    * {
      margin: 0;
      padding: 0;
      box-sizing: border-box;
    }
    
    body {
      font-family: 'Inter', sans-serif;
      background: var(--white);
      color: var(--navy);
      overflow-x: hidden;
    }
    
    body.dark-mode {
      background: var(--navy);
      color: var(--white);
    }
    
    h1, h2, h3, h4, h5, h6 {
      font-family: 'Poppins', sans-serif;
      font-weight: 700;
    }
    
    .btn-primary {
      font-family: 'DM Sans', sans-serif;
    }
    
    .hero-gradient {
      background: linear-gradient(135deg, rgba(11, 28, 45, 0.95) 0%, rgba(31, 169, 113, 0.8) 100%);
    }
    
    .card-hover {
      transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    }
    
    .card-hover:hover {
      transform: translateY(-8px);
      box-shadow: 0 20px 40px rgba(11, 28, 45, 0.15);
    }
    
    .glass-effect {
      background: rgba(255, 255, 255, 0.1);
      backdrop-filter: blur(10px);
      border: 1px solid rgba(255, 255, 255, 0.2);
    }
    
    .stat-counter {
      animation: countUp 2s ease-out forwards;
    }
    
    @keyframes countUp {
      from { opacity: 0; transform: translateY(20px); }
      to { opacity: 1; transform: translateY(0); }
    }
    
    @keyframes fadeInUp {
      from {
        opacity: 0;
        transform: translateY(30px);
      }
      to {
        opacity: 1;
        transform: translateY(0);
      }
    }
    
    .fade-in-up {
      animation: fadeInUp 0.6s ease-out forwards;
    }
    
    .category-filter-btn {
      transition: all 0.3s ease;
      border: 2px solid transparent;
    }
    
    .category-filter-btn.active {
      background: var(--emerald);
      color: white;
      border-color: var(--emerald);
    }
    
    .category-filter-btn:hover {
      border-color: var(--emerald);
      transform: translateY(-2px);
    }
    
    .modal {
      display: none;
      position: fixed;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      background: rgba(11, 28, 45, 0.8);
      z-index: 1000;
      align-items: center;
      justify-content: center;
      backdrop-filter: blur(5px);
    }
    
    .modal.active {
      display: flex;
    }
    
    .modal-content {
      background: white;
      border-radius: 16px;
      max-width: 600px;
      width: 90%;
      max-height: 90%;
      overflow-y: auto;
      position: relative;
      animation: fadeInUp 0.4s ease-out;
    }
    
    body.dark-mode .modal-content {
      background: #1a2332;
      color: white;
    }
    
    .toast {
      position: fixed;
      bottom: 30px;
      right: 30px;
      background: var(--emerald);
      color: white;
      padding: 16px 24px;
      border-radius: 8px;
      box-shadow: 0 10px 30px rgba(31, 169, 113, 0.3);
      z-index: 2000;
      display: none;
      animation: slideInRight 0.4s ease-out;
    }
    
    .toast.active {
      display: block;
    }
    
    @keyframes slideInRight {
      from {
        transform: translateX(400px);
        opacity: 0;
      }
      to {
        transform: translateX(0);
        opacity: 1;
      }
    }
    
    .nav-link {
      position: relative;
      transition: color 0.3s ease;
    }
    
    .nav-link::after {
      content: '';
      position: absolute;
      bottom: -4px;
      left: 0;
      width: 0;
      height: 2px;
      background: var(--emerald);
      transition: width 0.3s ease;
    }
    
    .nav-link:hover::after {
      width: 100%;
    }
    
    .section-padding {
      padding: 80px 20px;
    }
    
    @media (max-width: 768px) {
      .section-padding {
        padding: 50px 16px;
      }
    }
    
    .hero-bg {
      background-image: url('https://images.unsplash.com/photo-1486406146926-c627a92ad1ab?w=1600&h=900&fit=crop');
      background-size: cover;
      background-position: center;
    }
    
    .smooth-scroll {
      scroll-behavior: smooth;
    }