* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }
        body {
            font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
            line-height: 1.6;
            color: #f0f0f0;
            background-color: #0a0a12;
            background-image: radial-gradient(circle at 20% 30%, #1a1a2e 0%, #0a0a12 70%);
            overflow-x: hidden;
        }
        a {
            color: #00b4d8;
            text-decoration: none;
            transition: color 0.3s ease;
        }
        a:hover {
            color: #90e0ef;
            text-decoration: underline;
        }
        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: 8px;
        }
        .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;
        }
        header {
            background-color: #111122;
            padding: 15px 0;
            border-bottom: 2px solid #00b4d8;
            position: sticky;
            top: 0;
            z-index: 1000;
            box-shadow: 0 4px 12px rgba(0, 180, 216, 0.2);
        }
        .header-container {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }
        .logo a {
            font-size: 1.8rem;
            font-weight: 700;
            color: #00b4d8;
            text-transform: uppercase;
            letter-spacing: 1px;
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .logo i {
            font-size: 2rem;
        }
        .logo a:hover {
            color: #90e0ef;
            text-decoration: none;
        }
        .nav-desktop {
            display: flex;
            gap: 25px;
        }
        .nav-desktop a {
            font-size: 1.1rem;
            padding: 8px 12px;
            border-radius: 5px;
            position: relative;
        }
        .nav-desktop a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 50%;
            transform: translateX(-50%);
            width: 0;
            height: 2px;
            background-color: #00b4d8;
            transition: width 0.3s ease;
        }
        .nav-desktop a:hover::after {
            width: 80%;
        }
        .hamburger {
            display: none;
            font-size: 1.8rem;
            background: none;
            border: none;
            color: #00b4d8;
            cursor: pointer;
            padding: 5px;
        }
        .nav-mobile {
            display: none;
            flex-direction: column;
            gap: 15px;
            background-color: #111122;
            padding: 20px;
            border-radius: 8px;
            margin-top: 15px;
            border: 1px solid #00b4d8;
        }
        .nav-mobile a {
            padding: 10px;
            border-bottom: 1px solid #333344;
        }
        .nav-mobile a:last-child {
            border-bottom: none;
        }
        #menu-toggle {
            display: none;
        }
        #menu-toggle:checked ~ .nav-mobile {
            display: flex;
        }
        .breadcrumb {
            padding: 15px 0;
            background-color: #151522;
            border-bottom: 1px solid #333344;
        }
        .breadcrumb ol {
            display: flex;
            list-style: none;
            gap: 10px;
            flex-wrap: wrap;
        }
        .breadcrumb li {
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .breadcrumb a {
            color: #90e0ef;
        }
        .breadcrumb .separator {
            color: #00b4d8;
        }
        main {
            padding: 30px 0;
        }
        article {
            background-color: #151522;
            padding: 30px;
            border-radius: 12px;
            box-shadow: 0 8px 24px rgba(0, 0, 0, 0.5);
            margin-bottom: 30px;
        }
        h1, h2, h3 {
            color: #00b4d8;
            margin-bottom: 20px;
            line-height: 1.3;
        }
        h1 {
            font-size: 2.8rem;
            text-align: center;
            border-bottom: 3px solid #00b4d8;
            padding-bottom: 15px;
            margin-bottom: 30px;
        }
        h2 {
            font-size: 2rem;
            margin-top: 40px;
            border-left: 5px solid #00b4d8;
            padding-left: 15px;
        }
        h3 {
            font-size: 1.6rem;
            margin-top: 30px;
            color: #90e0ef;
        }
        p {
            margin-bottom: 20px;
            font-size: 1.1rem;
            text-align: justify;
        }
        .highlight {
            background-color: #1a1a2e;
            border-left: 4px solid #00b4d8;
            padding: 20px;
            margin: 25px 0;
            border-radius: 0 8px 8px 0;
        }
        .highlight p {
            margin-bottom: 0;
        }
        .bold {
            font-weight: 700;
            color: #90e0ef;
        }
        .emoji {
            font-size: 1.2rem;
            margin-right: 5px;
        }
        .image-container {
            margin: 30px auto;
            text-align: center;
            position: relative;
        }
        .image-container img {
            box-shadow: 0 6px 20px rgba(0, 180, 216, 0.3);
            transition: transform 0.3s ease, box-shadow 0.3s ease;
        }
        .image-container img:hover {
            transform: scale(1.02);
            box-shadow: 0 10px 30px rgba(0, 180, 216, 0.5);
        }
        .caption {
            margin-top: 10px;
            font-style: italic;
            color: #aaaacc;
            font-size: 0.95rem;
        }
        ul, ol {
            margin-left: 30px;
            margin-bottom: 20px;
        }
        li {
            margin-bottom: 10px;
        }
        .quote {
            font-style: italic;
            border-left: 4px solid #90e0ef;
            padding-left: 20px;
            margin: 25px 0;
            color: #ccccee;
            background-color: #1a1a2e;
            padding: 20px;
            border-radius: 0 8px 8px 0;
        }
        .author {
            text-align: right;
            font-weight: bold;
            color: #00b4d8;
            margin-top: 10px;
        }
        .feature-box {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            gap: 25px;
            margin: 40px 0;
        }
        .feature {
            background: linear-gradient(135deg, #1a1a2e 0%, #111122 100%);
            padding: 25px;
            border-radius: 10px;
            border: 1px solid #333344;
            transition: transform 0.3s ease, border-color 0.3s ease;
        }
        .feature:hover {
            transform: translateY(-5px);
            border-color: #00b4d8;
        }
        .feature i {
            font-size: 2.5rem;
            color: #00b4d8;
            margin-bottom: 15px;
        }
        .feature h3 {
            margin-top: 0;
        }
        .form-section {
            background-color: #1a1a2e;
            padding: 30px;
            border-radius: 10px;
            margin: 40px 0;
            border: 1px solid #333344;
        }
        .form-section h2 {
            border-left: none;
            padding-left: 0;
            text-align: center;
        }
        form {
            display: flex;
            flex-direction: column;
            gap: 20px;
            max-width: 600px;
            margin: 0 auto;
        }
        .form-group {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        label {
            font-weight: 600;
            color: #90e0ef;
        }
        input, textarea, select {
            padding: 12px 15px;
            border-radius: 6px;
            border: 1px solid #555566;
            background-color: #0a0a12;
            color: #f0f0f0;
            font-size: 1rem;
            transition: border-color 0.3s ease;
        }
        input:focus, textarea:focus, select:focus {
            outline: none;
            border-color: #00b4d8;
            box-shadow: 0 0 8px rgba(0, 180, 216, 0.5);
        }
        button {
            padding: 14px 20px;
            background: linear-gradient(90deg, #00b4d8, #0077b6);
            color: white;
            border: none;
            border-radius: 6px;
            font-size: 1.1rem;
            font-weight: 600;
            cursor: pointer;
            transition: background 0.3s ease, transform 0.2s ease;
        }
        button:hover {
            background: linear-gradient(90deg, #0077b6, #00b4d8);
            transform: translateY(-3px);
        }
        button:active {
            transform: translateY(0);
        }
        .rating {
            display: flex;
            gap: 10px;
            align-items: center;
            flex-wrap: wrap;
        }
        .rating input[type="radio"] {
            display: none;
        }
        .rating label {
            font-size: 2rem;
            color: #555566;
            cursor: pointer;
            transition: color 0.3s ease;
        }
        .rating input[type="radio"]:checked ~ label,
        .rating label:hover,
        .rating label:hover ~ label {
            color: #ffd700;
        }
        .internal-links {
            background-color: #111122;
            padding: 40px 0;
            border-top: 2px solid #00b4d8;
            border-bottom: 1px solid #333344;
        }
        .internal-links h3 {
            text-align: center;
            margin-bottom: 30px;
            border-left: none;
            padding-left: 0;
        }
        .links-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 20px;
        }
        .web-link {
            background-color: #1a1a2e;
            padding: 20px;
            border-radius: 8px;
            text-align: center;
            transition: background-color 0.3s ease;
        }
        .web-link:hover {
            background-color: #22223a;
        }
        .web-link a {
            font-size: 1.1rem;
            display: block;
            padding: 10px;
        }
        footer {
            background-color: #0a0a12;
            padding: 30px 0;
            text-align: center;
            color: #aaaacc;
            font-size: 0.95rem;
        }
        .footer-container {
            display: flex;
            flex-direction: column;
            gap: 20px;
        }
        .social-links {
            display: flex;
            justify-content: center;
            gap: 20px;
            margin-bottom: 20px;
        }
        .social-links a {
            font-size: 1.5rem;
            color: #00b4d8;
            transition: color 0.3s ease, transform 0.3s ease;
        }
        .social-links a:hover {
            color: #90e0ef;
            transform: scale(1.2);
        }
        @media (max-width: 768px) {
            .header-container {
                flex-wrap: wrap;
            }
            .nav-desktop {
                display: none;
            }
            .hamburger {
                display: block;
            }
            h1 {
                font-size: 2.2rem;
            }
            h2 {
                font-size: 1.8rem;
            }
            h3 {
                font-size: 1.4rem;
            }
            article {
                padding: 20px;
            }
            .feature-box {
                grid-template-columns: 1fr;
            }
            .links-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 480px) {
            .links-grid {
                grid-template-columns: 1fr;
            }
            h1 {
                font-size: 1.9rem;
            }
            .breadcrumb ol {
                font-size: 0.9rem;
            }
        }