:root {
    --primary: #0f172a;
    --accent: #3b82f6;
    --accent-glow: rgba(59, 130, 246, 0.5);
    --bg-main: #f8fafc;
    --card-bg: #ffffff;
    --text-main: #1e293b;
    --text-muted: #64748b;
    --radius-lg: 1.5rem;
    --radius-md: 1rem;
    --shadow-premium: 0 20px 25px -5px rgb(0 0 0 / 0.05), 0 8px 10px -6px rgb(0 0 0 / 0.05);
}

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

body {
    font-family: 'Inter', 'Lato', system-ui, -apple-system, sans-serif;
    background-color: var(--bg-main);
    color: var(--text-main);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* Header */
header {
    height: 100px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(12px);
    position: sticky;
    top: 0;
    z-index: 100;
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-weight: 800;
    font-size: 1.5rem;
    color: var(--primary);
    text-decoration: none;
}

.logo i {
    color: var(--accent);
}

.nav-links {
    display: flex;
    gap: 2rem;
}

.nav-links a {
    text-decoration: none;
    color: var(--text-main);
    font-weight: 600;
    font-size: 0.9rem;
    transition: color 0.2s;
}

.nav-links a.active {
    color: var(--accent);
    border-bottom: 2px solid var(--accent);
}

/* Hero Section */
.hero {
    padding: 4rem 0;
    text-align: center;
}

.hero h1 {
    font-size: 4rem;
    font-weight: 900;
    letter-spacing: -0.05em;
    margin-bottom: 1rem;
}

.hero p {
    color: var(--text-muted);
    font-size: 1.25rem;
    max-width: 600px;
    margin: 0 auto;
}

/* Featured Article */
.featured-card {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    background: var(--card-bg);
    border-radius: var(--radius-lg);
    overflow: hidden;
    margin-bottom: 4rem;
    box-shadow: var(--shadow-premium);
    transition: transform 0.3s ease;
}

.featured-card:hover {
    transform: translateY(-5px);
}

.featured-img {
    width: 100%;
    height: 500px;
    object-fit: cover;
}

.featured-content {
    padding: 3.5rem;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.badge {
    display: inline-block;
    padding: 0.4rem 1rem;
    border-radius: 2rem;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 1.5rem;
    background: rgba(59, 130, 246, 0.1);
    color: var(--accent);
}

.featured-content h2 {
    font-size: 2.5rem;
    line-height: 1.2;
    margin-bottom: 1.5rem;
    font-weight: 800;
}

.featured-content p {
    color: var(--text-muted);
    margin-bottom: 2rem;
}

/* Blog Grid */
.blog-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 2.5rem;
    margin-bottom: 6rem;
}

.post-card {
    background: var(--card-bg);
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-premium);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    cursor: pointer;
    display: flex;
    flex-direction: column;
}

.post-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 30px 60px -12px rgba(50, 50, 93, 0.25), 0 18px 36px -18px rgba(0, 0, 0, 0.3);
}

.post-img-wrapper {
    position: relative;
    width: 100%;
    padding-top: 66%;
    overflow: hidden;
}

.post-img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s ease;
}

.post-card:hover .post-img {
    transform: scale(1.05);
}

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

.post-meta {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1rem;
    font-size: 0.8rem;
    color: var(--text-muted);
    font-weight: 500;
}

.post-info h3 {
    font-size: 1.5rem;
    font-weight: 800;
    line-height: 1.3;
    margin-bottom: 1rem;
    color: var(--primary);
}

.post-excerpt {
    color: var(--text-muted);
    font-size: 0.95rem;
    margin-bottom: 1.5rem;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
    flex: 1;
}

/* Article Modal/Detail */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(255, 255, 255, 0.98);
    z-index: 1000;
    overflow-y: auto;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
}

.modal.active {
    opacity: 1;
    pointer-events: all;
}

.modal-content {
    max-width: 800px;
    margin: 4rem auto;
    padding: 0 2rem;
}

.modal-close {
    position: fixed;
    top: 2rem;
    right: 2rem;
    width: 3rem;
    height: 3rem;
    border-radius: 50%;
    background: #f1f5f9;
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    transition: all 0.2s;
}

.modal-close:hover {
    background: #e2e8f0;
    transform: rotate(90deg);
}

.modal-header {
    text-align: center;
    margin-bottom: 3rem;
}

.modal-header .badge {
    margin-bottom: 1rem;
}

.modal-header h1 {
    font-size: 3.5rem;
    font-weight: 900;
    letter-spacing: -0.04em;
    line-height: 1.1;
    margin-bottom: 2rem;
}

.modal-hero-img {
    width: 100%;
    border-radius: var(--radius-lg);
    margin-bottom: 3rem;
    box-shadow: var(--shadow-premium);
}

.article-body {
    font-size: 1.2rem;
    color: var(--text-main);
    line-height: 1.8;
}

.article-body h2 {
    margin: 2.5rem 0 1rem;
    font-size: 2rem;
    font-weight: 800;
}

.article-body p {
    margin-bottom: 1.5rem;
}

.article-body img {
    max-width: 100%;
    border-radius: var(--radius-md);
    margin: 2rem 0;
}

.article-body ul {
    margin-bottom: 1.5rem;
    padding-left: 1.5rem;
}

.skeleton {
    background: linear-gradient(90deg, #f0f0f0 25%, #e0e0e0 50%, #f0f0f0 75%);
    background-size: 200% 100%;
    animation: skeleton-loading 1.5s infinite;
}

@keyframes skeleton-loading {
    0% {
        background-position: 200% 0;
    }

    100% {
        background-position: -200% 0;
    }
}

.share-btn {
    background: none;
    border: none;
    cursor: pointer;
    color: var(--text-muted);
    transition: all 0.2s ease;
    padding: 0.5rem;
    border-radius: 0.5rem;
}

.share-btn:hover {
    color: var(--accent);
    background: rgba(59, 130, 246, 0.05);
    transform: translateY(-2px);
}

@media (max-width: 900px) {
    .featured-card {
        grid-template-columns: 1fr;
    }

    .hero h1 {
        font-size: 2.5rem;
    }

    .modal-header h1 {
        font-size: 2.2rem;
    }
}
/* Content Media Styles */
.video-container {
    position: relative;
    padding-bottom: 56.25%; /* 16:9 */
    height: 0;
    overflow: hidden;
    max-width: 100%;
    background: #000;
    border-radius: 12px;
    margin: 2.5rem 0;
}

.video-container iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: 0;
}

audio {
    width: 100%;
    margin: 2rem 0;
    border-radius: 99px;
    display: block;
}