:root {
    --bg-color: #081c1c;
    --card-bg: #0f2e2e;
    --accent: #14b8a6;
    --accent-hover: #14b8a6;
    --text-primary: #f0fdfa;
    --text-secondary: #99f6e4;
    --border-color: rgba(255, 255, 255, 0.1);
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    --font-heading: 'Outfit', -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-primary);
    font-family: var(--font-sans);
    line-height: 1.7;
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
}

.container {
    max-width: 1080px;
    margin: 0 auto;
    padding: 0 24px;
}

header {
    border-bottom: 1px solid var(--border-color);
    background: rgba(15, 23, 42, 0.85);
    backdrop-filter: blur(12px);
    position: sticky;
    top: 0;
    z-index: 100;
}

.nav-wrapper {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 72px;
}

.logo {
    font-family: var(--font-heading);
    font-size: 20px;
    font-weight: 800;
    color: var(--text-primary);
    text-decoration: none;
    letter-spacing: -0.5px;
}

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

nav ul {
    display: flex;
    list-style: none;
    gap: 28px;
}

nav a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    transition: color 0.2s ease;
}

nav a:hover {
    color: var(--accent);
}

.hero {
    padding: 70px 0 40px;
    text-align: center;
}

.hero h1 {
    font-family: var(--font-heading);
    font-size: 42px;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 18px;
    letter-spacing: -1px;
    background: linear-gradient(135deg, #ffffff 0%, var(--accent) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero p {
    font-size: 18px;
    color: var(--text-secondary);
    max-width: 760px;
    margin: 0 auto 30px;
}

.author-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 28px;
    margin: 30px 0;
    display: flex;
    gap: 20px;
    align-items: center;
}

.author-avatar {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--accent), #1e293b);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    font-weight: 700;
    color: #ffffff;
    flex-shrink: 0;
}

.author-info h3 {
    font-family: var(--font-heading);
    font-size: 18px;
    margin-bottom: 4px;
}

.author-info .role {
    font-size: 13px;
    color: var(--accent);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 8px;
}

.author-info p {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.5;
}

.grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 24px;
    margin: 40px 0;
}

.card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 24px;
    display: flex;
    flex-direction: column;
    transition: transform 0.2s ease, border-color 0.2s ease;
}

.card:hover {
    transform: translateY(-4px);
    border-color: var(--accent);
}

.card .date {
    font-size: 12px;
    color: var(--text-secondary);
    margin-bottom: 8px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.card h3 {
    font-family: var(--font-heading);
    font-size: 18px;
    margin-bottom: 12px;
    line-height: 1.4;
}

.card p {
    color: var(--text-secondary);
    font-size: 14px;
    margin-bottom: 20px;
    flex-grow: 1;
}

.card a.read-more {
    color: var(--accent);
    text-decoration: none;
    font-weight: 600;
    font-size: 14px;
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

article.main-article {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 40px;
    margin: 40px 0;
}

article h1 {
    font-family: var(--font-heading);
    font-size: 34px;
    line-height: 1.3;
    margin-bottom: 16px;
    letter-spacing: -0.5px;
}

article .meta {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 30px;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--border-color);
}

article h2 {
    font-family: var(--font-heading);
    font-size: 22px;
    margin: 32px 0 16px;
    color: var(--text-primary);
}

article h3 {
    font-family: var(--font-heading);
    font-size: 18px;
    margin: 24px 0 12px;
    color: var(--text-primary);
}

article p {
    margin-bottom: 20px;
    color: var(--text-primary);
    font-size: 16px;
}

article ul, article ol {
    margin: 0 0 20px 24px;
    color: var(--text-primary);
}

article li {
    margin-bottom: 8px;
}

article a {
    color: var(--accent);
    text-decoration: underline;
    font-weight: 500;
}

article a:hover {
    color: #ffffff;
}

article code {
    background: rgba(255, 255, 255, 0.08);
    padding: 2px 6px;
    border-radius: 4px;
    font-family: monospace;
    font-size: 14px;
    color: var(--accent);
}

footer {
    border-top: 1px solid var(--border-color);
    padding: 40px 0;
    text-align: center;
    color: var(--text-secondary);
    font-size: 14px;
    margin-top: 60px;
}

footer .footer-links {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-bottom: 16px;
}

footer a {
    color: var(--text-secondary);
    text-decoration: none;
}

footer a:hover {
    color: var(--accent);
}

@media (max-width: 768px) {
    .hero h1 { font-size: 32px; }
    article h1 { font-size: 28px; }
    article.main-article { padding: 24px; }
    .author-card { flex-direction: column; text-align: center; }
}