:root{--bg: #0f172a;--panel: #1e293b;--text: #f8fafc;--muted: #94a3b8;--accent: #38bdf8;--danger: #f87171;--success: #4ade80}*{box-sizing:border-box}html,body,#root{height:100%;margin:0}body{font-family:system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;background:var(--bg);color:var(--text);line-height:1.5}a{color:var(--accent);text-decoration:none}button{cursor:pointer;border:none;border-radius:.5rem;padding:.5rem 1rem;font-size:.95rem;background:var(--accent);color:#0f172a;font-weight:600;transition:opacity .15s ease}button:hover{opacity:.9}button:disabled{opacity:.5;cursor:not-allowed}input,textarea{border:1px solid #334155;border-radius:.5rem;padding:.5rem .75rem;background:var(--panel);color:var(--text);font:inherit}textarea{resize:vertical}.card{background:var(--panel);border-radius:.75rem;padding:1rem}.container{max-width:1200px;margin:0 auto;padding:1rem}