:root{color-scheme:light dark;--bg:#0f1115;--card:#1a1d24;--text:#e8eaed;--muted:#9aa1ac;--accent:#4f8cff;--accent-text:#fff;--error:#ff6b6b;--notice:#4fd18c;--border:#2a2e37}*{box-sizing:border-box}body{margin:0;min-height:100vh;display:flex;align-items:center;justify-content:center;background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;padding:24px}.card{background:var(--card);border:1px solid var(--border);border-radius:12px;padding:32px;width:100%;max-width:420px}h1{font-size:1.3rem;margin:0 0 8px}label{display:block;font-size:.85rem;margin:16px 0 6px;color:var(--muted)}input[type="text"],input[type="password"]{width:100%;padding:10px 12px;border-radius:8px;border:1px solid var(--border);background:#11141a;color:var(--text);font-size:1rem}button[type="submit"]{width:100%;margin-top:24px;padding:12px;border:none;border-radius:8px;background:var(--accent);color:var(--accent-text);font-size:1rem;font-weight:600;cursor:pointer}button[type="submit"]:hover{opacity:.9}.error{color:var(--error);font-size:.9rem}.notice{color:var(--notice);font-size:.9rem}.recaptcha-box{margin-top:16px}