* { margin: 0; padding: 0; box-sizing: border-box; }
        html { scroll-behavior: smooth; }
        body {
            font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
            line-height: 1.7;
            color: #e0e0e0;
            background: linear-gradient(135deg, #0a0e17 0%, #1a1f2e 100%);
            min-height: 100vh;
        }
        img { max-width: 100%; height: auto; display: block; }
        a { color: #4dabf7; text-decoration: none; transition: color 0.3s ease, transform 0.2s ease; }
        a:hover { color: #74c0fc; transform: translateY(-2px); }
        .container {
            width: 100%;
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }
        .sr-only {
            position: absolute;
            width: 1px;
            height: 1px;
            padding: 0;
            margin: -1px;
            overflow: hidden;
            clip: rect(0,0,0,0);
            border: 0;
        }
        .site-header {
            background: rgba(10, 14, 23, 0.95);
            backdrop-filter: blur(10px);
            border-bottom: 1px solid #2d3748;
            position: sticky;
            top: 0;
            z-index: 1000;
            padding: 15px 0;
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .my-logo {
            font-size: 2.2rem;
            font-weight: 800;
            background: linear-gradient(90deg, #ff6b6b, #4dabf7, #20c997);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            letter-spacing: -0.5px;
            text-shadow: 0 2px 4px rgba(0,0,0,0.3);
        }
        .my-logo:hover { transform: scale(1.03); }
        .main-nav ul {
            display: flex;
            list-style: none;
            gap: 30px;
        }
        .main-nav a {
            color: #cbd5e0;
            font-weight: 600;
            padding: 8px 0;
            position: relative;
        }
        .main-nav a:after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background: #4dabf7;
            transition: width 0.3s ease;
        }
        .main-nav a:hover:after { width: 100%; }
        .hamburger {
            display: none;
            background: none;
            border: none;
            color: #cbd5e0;
            font-size: 1.8rem;
            cursor: pointer;
            padding: 5px;
        }
        .mobile-nav {
            display: none;
            flex-direction: column;
            background: #1a202c;
            padding: 20px;
            border-radius: 8px;
            margin-top: 15px;
            border: 1px solid #2d3748;
        }
        .mobile-nav.active { display: flex; }
        .mobile-nav a {
            padding: 12px 15px;
            border-bottom: 1px solid #2d3748;
        }
        .mobile-nav a:last-child { border-bottom: none; }
        .breadcrumb {
            padding: 15px 0;
            font-size: 0.9rem;
            color: #a0aec0;
            background: rgba(26, 32, 44, 0.6);
            margin-bottom: 30px;
        }
        .breadcrumb a { color: #a0aec0; }
        .breadcrumb a:hover { color: #fff; }
        .search-section {
            background: rgba(255, 255, 255, 0.05);
            padding: 30px;
            border-radius: 12px;
            margin: 30px 0;
            text-align: center;
            border: 1px solid rgba(255, 255, 255, 0.1);
        }
        .search-form {
            max-width: 600px;
            margin: 20px auto 0;
            display: flex;
            border-radius: 50px;
            overflow: hidden;
            box-shadow: 0 10px 25px rgba(0, 0, 0, 0.3);
        }
        .search-input {
            flex-grow: 1;
            padding: 18px 25px;
            border: none;
            background: #2d3748;
            color: #fff;
            font-size: 1.1rem;
        }
        .search-btn {
            background: linear-gradient(90deg, #4dabf7, #339af0);
            color: white;
            border: none;
            padding: 0 30px;
            cursor: pointer;
            font-weight: 600;
            font-size: 1rem;
            transition: background 0.3s ease;
        }
        .search-btn:hover { background: linear-gradient(90deg, #339af0, #228be6); }
        .main-content {
            display: grid;
            grid-template-columns: 1fr 300px;
            gap: 40px;
            padding: 30px 0;
        }
        @media (max-width: 992px) {
            .main-content { grid-template-columns: 1fr; }
        }
        article {
            background: rgba(26, 32, 44, 0.7);
            border-radius: 16px;
            padding: 40px;
            border: 1px solid rgba(255, 255, 255, 0.08);
            box-shadow: 0 15px 35px rgba(0, 0, 0, 0.4);
        }
        .hero-image {
            width: 100%;
            border-radius: 12px;
            margin: 25px 0 35px;
            border: 2px solid #4dabf7;
            box-shadow: 0 10px 30px rgba(77, 171, 247, 0.2);
        }
        .content-section {
            margin-bottom: 50px;
        }
        h1 {
            font-size: 3.2rem;
            background: linear-gradient(to right, #fff, #4dabf7);
            -webkit-background-clip: text;
            background-clip: text;
            color: transparent;
            margin-bottom: 25px;
            line-height: 1.2;
        }
        h2 {
            font-size: 2.2rem;
            color: #74c0fc;
            margin: 35px 0 20px;
            padding-bottom: 10px;
            border-bottom: 2px solid #2d3748;
        }
        h3 { font-size: 1.7rem; color: #20c997; margin: 25px 0 15px; }
        h4 { font-size: 1.4rem; color: #ffd43b; margin: 20px 0 12px; }
        p {
            margin-bottom: 22px;
            font-size: 1.1rem;
            text-align: justify;
        }
        .highlight {
            background: rgba(77, 171, 247, 0.15);
            border-left: 4px solid #4dabf7;
            padding: 20px;
            margin: 25px 0;
            border-radius: 0 8px 8px 0;
        }
        .info-box {
            background: rgba(32, 201, 151, 0.1);
            border: 1px solid #20c997;
            border-radius: 10px;
            padding: 25px;
            margin: 25px 0;
        }
        .quote {
            font-style: italic;
            color: #a5d8ff;
            border-left: 3px solid #ff6b6b;
            padding-left: 20px;
            margin: 25px 0;
        }
        .last-updated {
            text-align: right;
            font-size: 0.9rem;
            color: #a0aec0;
            margin-top: 40px;
            padding-top: 20px;
            border-top: 1px solid #2d3748;
        }
        .sidebar {
            background: rgba(26, 32, 44, 0.7);
            border-radius: 16px;
            padding: 30px;
            border: 1px solid rgba(255, 255, 255, 0.08);
            align-self: start;
            position: sticky;
            top: 120px;
        }
        .sidebar h3 { color: #ffa94d; margin-top: 0; }
        .related-links { list-style: none; }
        .related-links li { margin-bottom: 15px; }
        .related-links a {
            display: block;
            padding: 12px 15px;
            background: rgba(255, 255, 255, 0.05);
            border-radius: 8px;
            border-left: 3px solid #ff6b6b;
        }
        .related-links a:hover { background: rgba(255, 255, 255, 0.1); }
        .user-interaction {
            background: rgba(255, 255, 255, 0.05);
            padding: 35px;
            border-radius: 16px;
            margin: 40px 0;
            border: 1px solid rgba(255, 255, 255, 0.1);
        }
        .form-group { margin-bottom: 25px; }
        label {
            display: block;
            margin-bottom: 8px;
            color: #cbd5e0;
            font-weight: 600;
        }
        input, textarea, select {
            width: 100%;
            padding: 15px;
            background: #2d3748;
            border: 1px solid #4a5568;
            border-radius: 8px;
            color: #fff;
            font-size: 1rem;
        }
        textarea { min-height: 150px; resize: vertical; }
        .star-rating {
            display: flex;
            gap: 10px;
            font-size: 2rem;
            color: #4a5568;
            margin: 10px 0;
        }
        .star-rating label { margin: 0; cursor: pointer; }
        .star-rating input { display: none; }
        .star-rating label:hover,
        .star-rating label:hover ~ label { color: #ffd43b; }
        .star-rating input:checked ~ label { color: #ffd43b; }
        .submit-btn {
            background: linear-gradient(90deg, #20c997, #12b886);
            color: white;
            border: none;
            padding: 16px 40px;
            border-radius: 8px;
            font-weight: 700;
            font-size: 1.1rem;
            cursor: pointer;
            transition: all 0.3s ease;
        }
        .submit-btn:hover {
            background: linear-gradient(90deg, #12b886, #0ca678);
            transform: translateY(-3px);
            box-shadow: 0 7px 14px rgba(18, 184, 134, 0.4);
        }
        .site-footer {
            background: #0a0e17;
            padding: 50px 0 25px;
            margin-top: 60px;
            border-top: 1px solid #2d3748;
        }
        .footer-container {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer-section h4 { color: #74c0fc; margin-bottom: 20px; }
        .footer-links { list-style: none; }
        .footer-links li { margin-bottom: 12px; }
        friend-link {
            display: inline-block;
            background: rgba(77, 171, 247, 0.1);
            padding: 10px 20px;
            border-radius: 20px;
            margin: 5px 10px 5px 0;
            border: 1px solid #4dabf7;
        }
        .copyright {
            text-align: center;
            padding-top: 25px;
            border-top: 1px solid #2d3748;
            color: #a0aec0;
            font-size: 0.9rem;
        }
        @media (max-width: 768px) {
            h1 { font-size: 2.5rem; }
            h2 { font-size: 1.9rem; }
            h3 { font-size: 1.5rem; }
            .main-nav ul { display: none; }
            .hamburger { display: block; }
            .header-container { flex-wrap: wrap; }
            .main-nav { width: 100%; order: 3; margin-top: 15px; }
            .mobile-nav { width: 100%; }
            article, .sidebar { padding: 25px; }
            .search-input { padding: 15px 20px; }
        }