:root { --fg: #0f172a; --muted: #64748b; --bg: #f8fafc; --card: #fff; --accent: #6366f1; }
* { box-sizing: border-box; }
body { font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif; margin: 0; padding: 0; color: var(--fg); background: var(--bg); line-height: 1.65; }
.container { max-width: 820px; margin: 0 auto; padding: 3rem 1.5rem; }
header { text-align: center; margin-bottom: 3rem; }
header h1 { font-size: 2.5rem; margin: 0; letter-spacing: -0.02em; }
header p { color: var(--muted); font-size: 1.1rem; margin-top: 0.5rem; }
nav { display: flex; justify-content: center; gap: 1.5rem; margin-top: 1rem; }
nav a { color: var(--accent); text-decoration: none; font-weight: 500; }
ul.articles { list-style: none; padding: 0; display: grid; gap: 1rem; }
ul.articles li { background: var(--card); padding: 1.25rem 1.5rem; border-radius: 12px; box-shadow: 0 1px 3px rgba(0,0,0,0.05); }
ul.articles a { color: var(--fg); text-decoration: none; font-weight: 500; }
article { background: var(--card); padding: 2.5rem; border-radius: 16px; box-shadow: 0 1px 3px rgba(0,0,0,0.05); }
article h1 { margin-top: 0; letter-spacing: -0.02em; }
article h2 { margin-top: 2rem; color: var(--accent); }
footer { text-align: center; margin-top: 3rem; color: var(--muted); font-size: 0.9rem; }