* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}
body {
    background: linear-gradient(135deg, #0a1a2d 0%, #1a3a5f 100%);
    color: #f0f0f0;
    line-height: 1.7;
    min-height: 100vh;
    padding-bottom: 60px;
}
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}
.site-header {
    background: rgba(10, 26, 45, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 2px solid #00a8ff;
    position: sticky;
    top: 0;
    z-index: 1000;
    padding: 15px 0;
}
.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.my-logo {
    font-size: 2.2rem;
    font-weight: 900;
    color: #00a8ff;
    text-decoration: none;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    background: linear-gradient(90deg, #00a8ff, #4cd964);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    transition: transform 0.3s ease;
}
.my-logo:hover {
    transform: scale(1.05);
}
.desktop-nav {
    display: flex;
    gap: 30px;
}
.desktop-nav a {
    color: #b0d0ff;
    text-decoration: none;
    font-weight: 600;
    font-size: 1.05rem;
    padding: 8px 15px;
    border-radius: 6px;
    transition: all 0.3s ease;
    position: relative;
}
.desktop-nav a:hover {
    background: rgba(0, 168, 255, 0.15);
    color: #fff;
}
.desktop-nav a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 15px;
    width: 0;
    height: 2px;
    background: #00a8ff;
    transition: width 0.3s;
}
.desktop-nav a:hover::after {
    width: calc(100% - 30px);
}
.hamburger {
    display: none;
    font-size: 1.8rem;
    background: none;
    border: none;
    color: #00a8ff;
    cursor: pointer;
}
.mobile-nav {
    display: none;
    flex-direction: column;
    background: rgba(10, 26, 45, 0.98);
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    padding: 20px;
    border-top: 1px solid #1a3a5f;
}
.mobile-nav.active {
    display: flex;
}
.mobile-nav a {
    color: #b0d0ff;
    text-decoration: none;
    padding: 15px 20px;
    border-bottom: 1px solid #1a3a5f;
    font-weight: 600;
    transition: background 0.3s;
}
.mobile-nav a:hover {
    background: rgba(0, 168, 255, 0.1);
    color: #fff;
}
.breadcrumb {
    padding: 15px 0;
    font-size: 0.9rem;
    color: #8bb5ff;
}
.breadcrumb a {
    color: #00a8ff;
    text-decoration: none;
}
.breadcrumb a:hover {
    text-decoration: underline;
}
.breadcrumb span {
    margin: 0 8px;
    color: #5a8bcc;
}
.main-content {
    display: grid;
    grid-template-columns: 1fr 300px;
    gap: 40px;
    margin-top: 30px;
}
@media (max-width: 992px) {
    .main-content {
        grid-template-columns: 1fr;
    }
}
article {
    background: rgba(20, 40, 65, 0.7);
    border-radius: 15px;
    padding: 40px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    border: 1px solid #2a4a75;
}
.article-header {
    margin-bottom: 40px;
    text-align: center;
    border-bottom: 2px solid #00a8ff;
    padding-bottom: 25px;
}
.article-header h1 {
    font-size: 2.8rem;
    color: #fff;
    margin-bottom: 15px;
    line-height: 1.2;
}
.article-meta {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 20px;
    color: #8bb5ff;
    font-size: 0.95rem;
    flex-wrap: wrap;
}
.last-updated {
    color: #4cd964;
    font-weight: 600;
}
.featured-image {
    width: 100%;
    border-radius: 12px;
    overflow: hidden;
    margin: 30px 0;
    border: 3px solid #2a4a75;
}
.featured-image img {
    width: 100%;
    height: auto;
    display: block;
    transition: transform 0.5s ease;
}
.featured-image:hover img {
    transform: scale(1.03);
}
h2 {
    font-size: 2.2rem;
    color: #00a8ff;
    margin: 40px 0 20px;
    padding-bottom: 10px;
    border-bottom: 1px solid #2a4a75;
}
h3 {
    font-size: 1.8rem;
    color: #4cd964;
    margin: 30px 0 15px;
}
h4 {
    font-size: 1.4rem;
    color: #ffa726;
    margin: 25px 0 10px;
}
p {
    margin-bottom: 20px;
    font-size: 1.1rem;
    text-align: justify;
}
strong {
    color: #ffa726;
    font-weight: 700;
}
em {
    color: #4cd964;
    font-style: italic;
}
blockquote {
    border-left: 4px solid #00a8ff;
    padding-left: 20px;
    margin: 25px 0;
    color: #b0d0ff;
    font-style: italic;
    background: rgba(0, 168, 255, 0.05);
    padding: 15px 20px;
    border-radius: 0 8px 8px 0;
}
ul, ol {
    margin-left: 25px;
    margin-bottom: 25px;
}
li {
    margin-bottom: 10px;
}
a.article-link {
    color: #00a8ff;
    text-decoration: none;
    font-weight: 600;
    border-bottom: 1px dashed #00a8ff;
    transition: all 0.3s ease;
}
a.article-link:hover {
    color: #4cd964;
    border-bottom: 1px solid #4cd964;
}
.interactive-module {
    background: rgba(10, 26, 45, 0.8);
    border-radius: 12px;
    padding: 25px;
    margin: 35px 0;
    border: 1px solid #2a4a75;
}
.interactive-module h3 {
    margin-top: 0;
    color: #ffa726;
}
.search-box, .comment-form, .rating-form {
    display: flex;
    flex-direction: column;
    gap: 15px;
}
input, textarea, select {
    padding: 14px 18px;
    border-radius: 8px;
    border: 1px solid #2a4a75;
    background: rgba(20, 40, 65, 0.8);
    color: #fff;
    font-size: 1rem;
    transition: border 0.3s;
}
input:focus, textarea:focus, select:focus {
    outline: none;
    border-color: #00a8ff;
    box-shadow: 0 0 0 2px rgba(0, 168, 255, 0.2);
}
button, .btn {
    background: linear-gradient(90deg, #00a8ff, #4cd964);
    color: #0a1a2d;
    border: none;
    padding: 14px 25px;
    border-radius: 8px;
    font-weight: 700;
    font-size: 1rem;
    cursor: pointer;
    transition: transform 0.3s, box-shadow 0.3s;
    text-align: center;
    text-decoration: none;
    display: inline-block;
}
button:hover, .btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 7px 15px rgba(0, 168, 255, 0.4);
}
.star-rating {
    display: flex;
    gap: 10px;
    margin: 10px 0;
}
.star-rating label {
    font-size: 2rem;
    color: #555;
    cursor: pointer;
    transition: color 0.2s;
}
.star-rating input {
    display: none;
}
.star-rating label:hover,
.star-rating label:hover ~ label,
.star-rating input:checked ~ label {
    color: #ffa726;
}
.sidebar {
    background: rgba(20, 40, 65, 0.7);
    border-radius: 15px;
    padding: 30px;
    height: fit-content;
    border: 1px solid #2a4a75;
}
.sidebar-widget {
    margin-bottom: 35px;
}
.sidebar-widget h3 {
    font-size: 1.5rem;
    color: #ffa726;
    margin-bottom: 20px;
    padding-bottom: 10px;
    border-bottom: 1px solid #2a4a75;
}
.related-links {
    list-style: none;
    margin: 0;
    padding: 0;
}
.related-links li {
    margin-bottom: 12px;
}
.related-links a {
    color: #b0d0ff;
    text-decoration: none;
    display: block;
    padding: 12px 15px;
    background: rgba(10, 26, 45, 0.8);
    border-radius: 8px;
    border-left: 4px solid transparent;
    transition: all 0.3s ease;
}
.related-links a:hover {
    background: rgba(0, 168, 255, 0.15);
    border-left-color: #00a8ff;
    color: #fff;
    transform: translateX(5px);
}
.download-cta {
    text-align: center;
    background: linear-gradient(135deg, rgba(0, 168, 255, 0.1), rgba(76, 217, 100, 0.1));
    padding: 25px;
    border-radius: 10px;
    border: 2px dashed #00a8ff;
}
.site-footer {
    background: rgba(10, 26, 45, 0.95);
    border-top: 2px solid #00a8ff;
    margin-top: 60px;
    padding: 40px 0 20px;
}
.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-bottom: 30px;
}
.footer-section h3 {
    color: #00a8ff;
    font-size: 1.4rem;
    margin-bottom: 20px;
}
.footer-links {
    list-style: none;
}
.footer-links li {
    margin-bottom: 12px;
}
.footer-links a {
    color: #b0d0ff;
    text-decoration: none;
    transition: color 0.3s;
}
.footer-links a:hover {
    color: #4cd964;
}
friend-link {
    display: block;
    background: rgba(20, 40, 65, 0.8);
    padding: 15px;
    border-radius: 8px;
    margin-bottom: 10px;
    border: 1px solid #2a4a75;
}
friend-link a {
    color: #00a8ff;
    font-weight: 600;
    text-decoration: none;
}
friend-link a:hover {
    text-decoration: underline;
}
.copyright {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid #2a4a75;
    color: #8bb5ff;
    font-size: 0.9rem;
}
@media (max-width: 768px) {
    .header-content {
        flex-wrap: wrap;
    }
    .desktop-nav {
        display: none;
    }
    .hamburger {
        display: block;
    }
    .article-header h1 {
        font-size: 2.2rem;
    }
    h2 {
        font-size: 1.8rem;
    }
    h3 {
        font-size: 1.5rem;
    }
    article, .sidebar {
        padding: 25px;
    }
    .main-content {
        gap: 25px;
    }
}