* { margin: 0; padding: 0; box-sizing: border-box; }
:root {
    --bg: #0a0a0f; --card: #13131a; --border: #1e1e2a;
    --text: #e4e4ec; --muted: #888899;
    --accent: #7c5cfc; --accent-hover: #9b7cff;
    --gradient: linear-gradient(135deg, #7c5cfc, #c084fc);
}

body { font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif; background: var(--bg); color: var(--text); line-height: 1.6; }
.container { max-width: 1100px; margin: 0 auto; padding: 0 20px; }

/* Header */
header { border-bottom: 1px solid var(--border); background: rgba(10,10,15,0.9); backdrop-filter: blur(12px); position: sticky; top: 0; z-index: 100; }
.header-content { display: flex; align-items: center; justify-content: space-between; height: 64px; }
.logo { font-size: 1.5rem; font-weight: 800; text-decoration: none; color: var(--text); letter-spacing: -0.5px; }
.logo-accent { color: var(--accent); }
nav a { color: var(--muted); text-decoration: none; margin-left: 24px; font-size: 0.9rem; transition: color 0.2s; }
nav a:hover { color: var(--text); }

/* Hero */
.hero { padding: 80px 0 60px; text-align: center; }
.hero h1 { font-size: 3rem; font-weight: 800; line-height: 1.15; margin-bottom: 16px; }
.gradient-text { background: var(--gradient); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.subtitle { font-size: 1.15rem; color: var(--muted); max-width: 600px; margin: 0 auto; }

/* Articles */
.featured { padding: 40px 0 60px; }
.featured h2, .categories h2 { font-size: 1.5rem; margin-bottom: 24px; }
.article-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); gap: 20px; }
.article-card { background: var(--card); border: 1px solid var(--border); border-radius: 12px; padding: 20px; transition: border-color 0.2s, transform 0.2s; }
.article-card:hover { border-color: var(--accent); transform: translateY(-2px); }
.article-card h3 { font-size: 1.1rem; margin: 8px 0; }
.article-card h3 a { color: var(--text); text-decoration: none; }
.article-card h3 a:hover { color: var(--accent); }
.tag { display: inline-block; font-size: 0.75rem; font-weight: 600; padding: 3px 10px; border-radius: 100px; background: rgba(124,92,252,0.15); color: var(--accent); }
.excerpt { font-size: 0.9rem; color: var(--muted); margin: 8px 0; }
.meta { display: flex; align-items: center; gap: 12px; font-size: 0.8rem; color: var(--muted); margin-top: 12px; }
.loading { color: var(--muted); }

/* Categories */
.categories { padding: 40px 0 80px; }
.category-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 16px; }
.category-card { background: var(--card); border: 1px solid var(--border); border-radius: 12px; padding: 20px; text-decoration: none; color: var(--text); transition: border-color 0.2s; }
.category-card:hover { border-color: var(--accent); }
.cat-icon { font-size: 1.5rem; margin-bottom: 8px; }
.category-card h3 { font-size: 1rem; margin-bottom: 4px; }
.category-card p { font-size: 0.85rem; color: var(--muted); }

/* Footer */
footer { border-top: 1px solid var(--border); padding: 24px 0; text-align: center; color: var(--muted); font-size: 0.85rem; }
.footer-links { margin-top: 8px; }
.footer-links a { color: var(--muted); text-decoration: none; margin: 0 6px; }
.footer-links a:hover { color: var(--text); }

/* Article page */
.article-page { max-width: 720px; margin: 0 auto; padding: 40px 20px; }
.article-page h1 { font-size: 2rem; margin: 16px 0 8px; }
.article-page .meta { margin-bottom: 24px; }
.article-page p { margin-bottom: 16px; }
.article-page ul, .article-page ol { margin: 0 0 16px 24px; }

/* Responsive */
@media (max-width: 600px) {
    .hero h1 { font-size: 2rem; }
    .header-content { flex-direction: column; height: auto; padding: 12px 0; gap: 8px; }
    nav a { margin: 0 8px; }
    .article-grid { grid-template-columns: 1fr; }
}