:root {
    --bg-color: #090d16;
    --text-color: #f3f4f6;
    --primary-color: #a855f7;
    --primary-hover: #9333ea;
    --secondary-bg: #0f1422;
    --accent-color: #f43f5e;
    --border-color: rgba(255, 255, 255, 0.08);
    --glass-bg: rgba(17, 24, 39, 0.7);
    --glass-border: rgba(255, 255, 255, 0.05);
    --card-shadow: 0 10px 30px -10px rgba(0, 0, 0, 0.7);
    --font-sans: 'Outfit', 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

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

body {
    background-color: var(--bg-color);
    color: var(--text-color);
    font-family: var(--font-sans);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

a {
    color: var(--primary-color);
    text-decoration: none;
    transition: color 0.2s ease;
}

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

header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--glass-border);
}

.nav-container {
    max-width: 1100px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.25rem 1.5rem;
}

.logo {
    font-size: 1.4rem;
    font-weight: 700;
    color: #fff;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

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

.nav-links a {
    color: #9ca3af;
    font-weight: 500;
}

.nav-links a:hover, .nav-links a.active {
    color: #fff;
}

main {
    max-width: 1100px;
    margin: 0 auto;
    padding: 3rem 1.5rem;
}

.hero {
    text-align: center;
    padding: 5rem 1rem;
    background: radial-gradient(circle at center, rgba(168, 85, 247, 0.15) 0%, transparent 70%);
    border-radius: 24px;
    margin-bottom: 4rem;
    border: 1px solid var(--border-color);
}

.hero h1 {
    font-size: 3rem;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 1.5rem;
    color: #fff;
}

.hero p {
    font-size: 1.25rem;
    color: #9ca3af;
    max-width: 700px;
    margin: 0 auto 2.5rem auto;
}

.btn {
    display: inline-block;
    background-color: var(--primary-color);
    color: #fff;
    padding: 0.75rem 2rem;
    border-radius: 9999px;
    font-weight: 600;
    transition: all 0.2s ease;
    border: none;
    cursor: pointer;
    box-shadow: 0 4px 14px 0 rgba(59, 130, 246, 0.4);
}

.btn:hover {
    background-color: var(--primary-hover);
    color: #fff;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px 0 rgba(59, 130, 246, 0.5);
}

.section-title {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 2rem;
    color: #fff;
    position: relative;
    padding-bottom: 0.5rem;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 60px;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
    border-radius: 2px;
}

.grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 2rem;
}

.card {
    background-color: var(--secondary-bg);
    border-radius: 16px;
    overflow: hidden;
    border: 1px solid var(--border-color);
    box-shadow: var(--card-shadow);
    transition: transform 0.3s ease, border-color 0.3s ease;
    display: flex;
    flex-direction: column;
}

.card:hover {
    transform: translateY(-5px);
    border-color: rgba(59, 130, 246, 0.3);
}

.card-img {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.card-content {
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    flex-grow: 1;
}

.card-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: #fff;
    margin-bottom: 0.75rem;
}

.card-desc {
    color: #9ca3af;
    font-size: 0.95rem;
    margin-bottom: 1.5rem;
    flex-grow: 1;
}

.card-more {
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.article-container {
    max-width: 800px;
    margin: 0 auto;
}

.article-header {
    margin-bottom: 3rem;
}

.article-title {
    font-size: 2.5rem;
    font-weight: 800;
    color: #fff;
    line-height: 1.2;
    margin-bottom: 1rem;
}

.article-meta {
    color: #6b7280;
    font-size: 0.9rem;
}

.article-hero-img {
    width: 100%;
    max-height: 450px;
    object-fit: cover;
    border-radius: 16px;
    margin-bottom: 2.5rem;
    border: 1px solid var(--border-color);
}

.article-body {
    font-size: 1.1rem;
    color: #d1d5db;
}

.article-body h2 {
    font-size: 1.6rem;
    color: #fff;
    margin-top: 2.5rem;
    margin-bottom: 1rem;
}

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

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

.article-body li {
    margin-bottom: 0.5rem;
}

footer {
    background-color: var(--secondary-bg);
    border-top: 1px solid var(--border-color);
    padding: 3rem 1.5rem;
    margin-top: 5rem;
}

.footer-content {
    max-width: 1100px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1.5rem;
}

.footer-text {
    color: #6b7280;
    font-size: 0.9rem;
}

.footer-links {
    display: flex;
    gap: 1.5rem;
    list-style: none;
}

.footer-links a {
    color: #6b7280;
    font-size: 0.9rem;
}

.footer-links a:hover {
    color: #fff;
}

@media (max-width: 768px) {
    .nav-container {
        flex-direction: column;
        gap: 1rem;
    }
    .hero h1 {
        font-size: 2.25rem;
    }
    .footer-content {
        flex-direction: column;
        text-align: center;
    }
}