* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        :root {
            --primary-dark: #1a1f2e;
            --secondary-dark: #252b3d;
            --accent-teal: #2dd4bf;
            --accent-purple: #a855f7;
            --text-primary: #f1f5f9;
            --text-secondary: #cbd5e1;
            --border-color: #475569;
            --success-green: #10b981;
            --warning-amber: #f59e0b;
            --card-bg: rgba(30, 41, 59, 0.7);
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.7;
            color: var(--text-primary);
            background: linear-gradient(135deg, var(--primary-dark) 0%, #0f172a 100%);
            min-height: 100vh;
            background-attachment: fixed;
        }
        a {
            color: var(--accent-teal);
            text-decoration: none;
            transition: color 0.3s ease;
        }
        a:hover {
            color: #5eead4;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: 8px;
        }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        section {
            padding: 60px 0;
        }
        .section-title {
            font-size: 2.5rem;
            margin-bottom: 2rem;
            color: var(--accent-teal);
            border-left: 5px solid var(--accent-purple);
            padding-left: 20px;
        }
        .subsection-title {
            font-size: 1.8rem;
            margin: 2.5rem 0 1rem;
            color: var(--text-primary);
        }
        .paragraph {
            margin-bottom: 1.5rem;
            text-align: justify;
            color: var(--text-secondary);
        }
        .highlight {
            background: linear-gradient(90deg, transparent, rgba(45, 212, 191, 0.1), transparent);
            border-left: 3px solid var(--accent-teal);
            padding: 15px 20px;
            margin: 25px 0;
            font-style: italic;
        }
        .keyword {
            font-weight: bold;
            color: var(--accent-teal);
        }
        .emoji {
            margin-right: 8px;
        }
        .btn {
            display: inline-block;
            padding: 12px 28px;
            background: linear-gradient(90deg, var(--accent-teal), var(--accent-purple));
            color: white;
            border: none;
            border-radius: 50px;
            font-weight: bold;
            cursor: pointer;
            transition: transform 0.3s, box-shadow 0.3s;
        }
        .btn:hover {
            transform: translateY(-3px);
            box-shadow: 0 10px 20px rgba(0, 0, 0, 0.3);
        }
        .site-header {
            background-color: rgba(10, 15, 28, 0.95);
            backdrop-filter: blur(10px);
            position: sticky;
            top: 0;
            z-index: 1000;
            border-bottom: 1px solid var(--border-color);
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 15px 20px;
        }
        .logo a {
            font-size: 2.2rem;
            font-weight: 800;
            background: linear-gradient(to right, var(--accent-teal), var(--accent-purple));
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            letter-spacing: -0.5px;
        }
        .nav-desktop ul {
            display: flex;
            list-style: none;
            gap: 30px;
        }
        .nav-desktop a {
            color: var(--text-primary);
            font-weight: 500;
            padding: 8px 0;
            position: relative;
        }
        .nav-desktop a:after {
            content: '';
            position: absolute;
            width: 0;
            height: 2px;
            bottom: 0;
            left: 0;
            background-color: var(--accent-teal);
            transition: width 0.3s;
        }
        .nav-desktop a:hover:after {
            width: 100%;
        }
        .nav-toggle {
            display: none;
            background: none;
            border: none;
            color: var(--text-primary);
            font-size: 1.8rem;
            cursor: pointer;
        }
        .nav-mobile {
            display: none;
            background-color: var(--secondary-dark);
            position: absolute;
            top: 100%;
            left: 0;
            width: 100%;
            padding: 20px;
            border-top: 1px solid var(--border-color);
        }
        .nav-mobile.active {
            display: block;
        }
        .nav-mobile ul {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 15px;
        }
        .nav-mobile a {
            color: var(--text-primary);
            display: block;
            padding: 12px;
            border-radius: 5px;
            transition: background 0.3s;
        }
        .nav-mobile a:hover {
            background-color: rgba(255, 255, 255, 0.05);
        }
        .breadcrumb {
            padding: 15px 20px;
            background-color: rgba(30, 41, 59, 0.5);
            border-bottom: 1px solid var(--border-color);
            font-size: 0.9rem;
        }
        .breadcrumb a {
            color: var(--text-secondary);
        }
        .breadcrumb span {
            color: var(--text-secondary);
            margin: 0 8px;
        }
        .hero {
            padding: 80px 20px;
            text-align: center;
            background: radial-gradient(circle at 30% 20%, rgba(45, 212, 191, 0.15) 0%, transparent 50%);
        }
        .hero h1 {
            font-size: 3.5rem;
            margin-bottom: 20px;
            background: linear-gradient(to right, #fff, var(--accent-teal));
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
        }
        .hero p {
            font-size: 1.2rem;
            max-width: 800px;
            margin: 0 auto 30px;
            color: var(--text-secondary);
        }
        .card-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
            gap: 30px;
            margin-top: 40px;
        }
        .card {
            background: var(--card-bg);
            border-radius: 12px;
            padding: 25px;
            border: 1px solid var(--border-color);
            transition: transform 0.3s, border-color 0.3s;
        }
        .card:hover {
            transform: translateY(-10px);
            border-color: var(--accent-teal);
        }
        .card-icon {
            font-size: 2.5rem;
            margin-bottom: 15px;
            color: var(--accent-purple);
        }
        .card h3 {
            margin-bottom: 15px;
            color: var(--text-primary);
        }
        .form-container {
            background: var(--card-bg);
            border-radius: 12px;
            padding: 30px;
            border: 1px solid var(--border-color);
            margin-top: 40px;
        }
        .form-group {
            margin-bottom: 20px;
        }
        .form-group label {
            display: block;
            margin-bottom: 8px;
            font-weight: 500;
        }
        .form-control {
            width: 100%;
            padding: 12px 16px;
            background-color: rgba(15, 23, 42, 0.7);
            border: 1px solid var(--border-color);
            border-radius: 8px;
            color: var(--text-primary);
            font-size: 1rem;
            transition: border 0.3s;
        }
        .form-control:focus {
            outline: none;
            border-color: var(--accent-teal);
        }
        .star-rating {
            display: flex;
            gap: 10px;
            margin: 10px 0;
        }
        .star-rating input {
            display: none;
        }
        .star-rating label {
            font-size: 2rem;
            color: var(--border-color);
            cursor: pointer;
            transition: color 0.2s;
        }
        .star-rating input:checked ~ label,
        .star-rating label:hover,
        .star-rating label:hover ~ label {
            color: var(--warning-amber);
        }
        .web-links {
            display: flex;
            flex-wrap: wrap;
            gap: 15px;
            margin: 40px 0;
            padding: 30px;
            background: var(--card-bg);
            border-radius: 12px;
            justify-content: center;
        }
        .web-link {
            padding: 10px 20px;
            background: rgba(45, 212, 191, 0.1);
            border: 1px solid var(--accent-teal);
            border-radius: 50px;
            transition: background 0.3s;
        }
        .web-link:hover {
            background: rgba(45, 212, 191, 0.2);
        }
        .site-footer {
            background-color: rgba(10, 15, 28, 0.98);
            border-top: 1px solid var(--border-color);
            padding: 40px 20px 20px;
            text-align: center;
        }
        .copyright {
            margin-top: 30px;
            padding-top: 20px;
            border-top: 1px solid var(--border-color);
            color: var(--text-secondary);
            font-size: 0.9rem;
        }
        @media (max-width: 992px) {
            .hero h1 { font-size: 2.8rem; }
            .section-title { font-size: 2.2rem; }
        }
        @media (max-width: 768px) {
            .nav-desktop { display: none; }
            .nav-toggle { display: block; }
            .hero h1 { font-size: 2.3rem; }
            .section-title { font-size: 2rem; }
            .subsection-title { font-size: 1.5rem; }
            .card-grid { grid-template-columns: 1fr; }
            .header-container { padding: 12px 15px; }
        }
        @media (max-width: 480px) {
            .hero { padding: 60px 15px; }
            .hero h1 { font-size: 1.9rem; }
            .section-title { font-size: 1.7rem; padding-left: 15px; }
            .btn { padding: 10px 22px; }
            .form-container { padding: 20px; }
        }