:root{--bg:#0b1220;--card:#111b2e;--text:#e8eefc;--muted:#a7b3ce;--border:rgba(255,255,255,0.12);--btn:#2a5bd7}*{box-sizing:border-box}body{margin:0;font-family:ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial;background:var(--bg);color:var(--text)}.container{max-width:980px;margin:0 auto;padding:24px}.card{background:var(--card);border:1px solid var(--border);border-radius:16px;padding:16px}.row{display:flex;gap:12px;flex-wrap:wrap}button,input{font:inherit}input{background:transparent;border:1px solid var(--border);border-radius:12px;color:var(--text);min-width:220px}button,input{padding:10px 12px}button{background:var(--btn);color:white;border:none;border-radius:12px;cursor:pointer}button.secondary{background:transparent;border:1px solid var(--border)}small{color:var(--muted)}hr{border:none;border-top:1px solid var(--border);margin:16px 0}a{color:#8bb0ff;text-decoration:none}a:hover{text-decoration:underline}