:root{--color-bg:#f5f7fa;--color-surface:#ffffff;--color-text:#1a2332;--color-muted:#5c6b7a;--color-accent:#1f6b4a;--color-accent-soft:#e8f3ee;--color-border:#d8e0e8;--font-sans:"Segoe UI",system-ui,-apple-system,sans-serif}*{box-sizing:border-box}body,html{margin:0;padding:0;min-height:100%;font-family:var(--font-sans);color:var(--color-text);background:radial-gradient(ellipse at top left,#e8f3ee 0,transparent 45%),radial-gradient(ellipse at bottom right,#e6eef7 0,transparent 40%),var(--color-bg)}a{color:var(--color-accent);text-decoration:none}a:hover{text-decoration:underline}main{min-height:100vh;display:flex;flex-direction:column}