:root {
    --black: #000000;
    --navy-blue: #0a1628;
    --baby-blue: #7A9BAD;
    --grey: #6c757d;
    --orange: #C9875B;
    --light-grey: #e9ecef;
    --white: #ffffff;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--white);
    background: linear-gradient(135deg, var(--black) 0%, var(--navy-blue) 100%);
    min-height: 100vh;
}

a {
    color: var(--orange);
}

a:visited {
    color: var(--orange);
}

a:hover {
    color: var(--orange);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.navbar {
    background: var(--navy-blue);
    padding: 1rem 0;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    text-decoration: none;
    color: var(--baby-blue);
    font-size: 1.5rem;
    font-weight: bold;
}

.logo img {
    height: 50px;
    margin-right: 15px;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-item {
    position: relative;
}

.nav-link {
    color: var(--orange);
    text-decoration: none;
    padding: 0.5rem 1rem;
    transition: color 0.3s ease, background-color 0.3s ease;
    border-radius: 4px;
    display: block;
}

.nav-link:hover {
    color: var(--orange);
    background-color: rgba(201, 135, 91, 0.1);
}

.dropdown-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    background: var(--navy-blue);
    min-width: 250px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.5);
    border-radius: 4px;
    margin-top: 0.5rem;
    max-height: 400px;
    overflow-y: auto;
}

.dropdown:hover .dropdown-menu {
    display: block;
}

.dropdown-item {
    display: block;
    padding: 0.75rem 1rem;
    color: var(--orange);
    text-decoration: none;
    transition: background-color 0.2s ease;
}

.dropdown-item:hover {
    background-color: rgba(201, 135, 91, 0.2);
    color: var(--orange);
}

.hero {
    text-align: center;
    padding: 6px 20px;
    background: var(--grey);
}

.hero-content h1 {
    font-size: 3rem;
    color: var(--navy-blue);
}

.hero-content p {
    font-size: 1.25rem;
    line-height: 1.2;
    color: var(--navy-blue);
}

.recent-posts, .categories-section, .blog-list, .blog-detail, .applications-content {
    padding: 3rem 0;
}

h2 {
    color: var(--baby-blue);
    margin-bottom: 2rem;
    font-size: 2rem;
    text-align: center;
}

.posts-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.post-card {
    background: var(--navy-blue);
    border-radius: 8px;
    overflow: hidden;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
}

.post-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(137, 207, 240, 0.3);
}

.post-image {
    width: 100%;
    height: 250px;
    object-fit: contain;
    object-position: center;
    background: var(--navy-blue);
}

.post-content {
    padding: 1.5rem;
}

.post-category {
    display: inline-block;
    background: var(--baby-blue);
    color: var(--black);
    padding: 0.25rem 0.75rem;
    border-radius: 4px;
    font-size: 0.875rem;
    font-weight: bold;
    margin-bottom: 0.5rem;
}

.post-content h3 {
    margin: 0.5rem 0;
}

.post-content h3 a {
    color: var(--orange);
    text-decoration: none;
    transition: color 0.3s ease;
}

.post-content h3 a:hover {
    color: var(--orange);
}

.post-content h3 a:visited {
    color: var(--orange);
}

.post-excerpt {
    color: var(--light-grey);
    margin-bottom: 1rem;
}

.post-meta {
    display: flex;
    gap: 1rem;
    font-size: 0.875rem;
    color: var(--grey);
    flex-wrap: wrap;
}

.categories-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 1.5rem;
}

.category-card {
    background: var(--navy-blue);
    padding: 2rem;
    border-radius: 8px;
    text-decoration: none;
    color: var(--orange);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
}

.category-card:visited {
    color: var(--orange);
}

.category-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(137, 207, 240, 0.3);
}

.category-card h3 {
    color: var(--baby-blue);
    margin-bottom: 0.5rem;
}

.category-card p {
    color: var(--light-grey);
}

.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    background: var(--baby-blue);
    color: var(--black);
    text-decoration: none;
    border-radius: 4px;
    font-weight: bold;
    transition: background-color 0.3s ease, transform 0.2s ease;
    border: none;
    cursor: pointer;
}

.btn:hover {
    background: #657f8f;
    transform: translateY(-2px);
}

.btn-secondary {
    background: var(--grey);
    color: var(--white);
}

.btn-secondary:hover {
    background: #5a6268;
}

.blog-header {
    background: var(--navy-blue);
    padding: 3rem 0;
    text-align: center;
}

.blog-header h1 {
    color: var(--baby-blue);
    margin-bottom: 1rem;
}

.category-filter {
    display: flex;
    gap: 1rem;
    margin-bottom: 2rem;
    flex-wrap: wrap;
    justify-content: center;
}

.filter-btn {
    padding: 0.5rem 1rem;
    background: var(--navy-blue);
    color: var(--orange);
    text-decoration: none;
    border-radius: 4px;
    transition: background-color 0.3s ease;
}

.filter-btn:visited {
    color: var(--orange);
}

.filter-btn:hover, .filter-btn.active {
    background: var(--baby-blue);
    color: var(--black);
}

.posts-list {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.blog-post-item {
    background: var(--navy-blue);
    border-radius: 8px;
    overflow: hidden;
    display: flex;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
}

.post-image-container {
    flex: 0 0 300px;
    background: var(--navy-blue);
}

.post-image-container img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    object-position: center;
}

.post-info {
    padding: 2rem;
    flex: 1;
}

.post-info h2 {
    text-align: left;
    margin: 0.5rem 0 1rem 0;
    font-size: 1.75rem;
}

.post-info h2 a {
    color: var(--orange);
    text-decoration: none;
}

.post-info h2 a:visited {
    color: var(--orange);
}

.post-info h2 a:hover {
    color: var(--orange);
}

.read-more {
    color: var(--orange);
    text-decoration: none;
    font-weight: bold;
    transition: color 0.3s ease;
}

.read-more:visited {
    color: var(--orange);
}

.read-more:hover {
    color: var(--orange);
}

.no-posts {
    text-align: center;
    color: var(--grey);
    font-size: 1.25rem;
}

.blog-detail {
    padding: 3rem 0;
}

.post-header {
    margin-bottom: 2rem;
}

.post-header h1 {
    color: var(--baby-blue);
    font-size: 2.5rem;
    margin: 1rem 0;
}

.post-featured-image {
    margin-bottom: 2rem;
    border-radius: 8px;
    overflow: hidden;
    max-height: 500px;
    background: var(--navy-blue);
}

.post-featured-image img {
    width: 100%;
    height: auto;
    object-fit: contain;
    object-position: center;
    max-height: 500px;
}

.post-content {
    background: var(--navy-blue);
    padding: 2rem;
    border-radius: 8px;
    margin-bottom: 2rem;
    line-height: 1.8;
}

.post-content p {
    margin-bottom: 1rem;
}

.post-content h2, .post-content h3 {
    color: var(--baby-blue);
    margin: 1.5rem 0 1rem 0;
}

.post-content ul, .post-content ol {
    margin-left: 2rem;
    margin-bottom: 1rem;
}

.post-footer {
    display: flex;
    gap: 1rem;
}

.applications-header {
    background: var(--navy-blue);
    padding: 3rem 0;
    text-align: center;
}

.applications-header h1 {
    color: var(--baby-blue);
    margin-bottom: 1rem;
}

.section-group {
    margin-bottom: 3rem;
}

.section-group h2 {
    text-align: left;
    margin-bottom: 1.5rem;
}

.apps-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 2rem;
}

.app-card {
    background: var(--navy-blue);
    padding: 2rem;
    border-radius: 8px;
    text-align: center;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
}

.app-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(137, 207, 240, 0.3);
}

.app-icon {
    width: 80px;
    height: 80px;
    object-fit: contain;
    margin-bottom: 1rem;
}

.app-icon-placeholder {
    font-size: 4rem;
    margin-bottom: 1rem;
}

.app-card h3 {
    color: var(--baby-blue);
    margin-bottom: 0.5rem;
}

.app-version, .app-platform, .app-size {
    color: var(--grey);
    font-size: 0.875rem;
    margin-bottom: 0.5rem;
}

.app-card p {
    color: var(--light-grey);
    margin-bottom: 1rem;
}

.no-apps {
    text-align: center;
    color: var(--grey);
    font-size: 1.25rem;
}

footer {
    background: var(--black);
    color: var(--grey);
    text-align: center;
    padding: 2rem 0;
    margin-top: 4rem;
}

@media (max-width: 768px) {
    .nav-menu {
        flex-direction: column;
        gap: 0.5rem;
    }

    .hero-content h1 {
        font-size: 2rem;
    }

    .posts-grid {
        grid-template-columns: 1fr;
    }

    .blog-post-item {
        flex-direction: column;
    }

    .post-image-container {
        flex: 0 0 200px;
    }

    .apps-grid {
        grid-template-columns: 1fr;
    }
}