:root{--bg:#0c0d10;--fg:#e8e8ea;--muted:#9c9ca0;--border:#2a2b30;--accent:#4ade80;--error:#f87171;--card-bg:#14151a}*{box-sizing:border-box}html,body{background:var(--bg);color:var(--fg);margin:0;padding:0;font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif;font-size:15px;line-height:1.5}main{min-height:100vh}a{color:var(--accent)}.container{max-width:460px;margin:4rem auto;padding:1rem}.card{background:var(--card-bg);border:1px solid var(--border);border-radius:8px;padding:1.5rem}h1{margin:0 0 1rem;font-size:1.4rem}label{color:var(--muted);margin-bottom:.3rem;font-size:.85rem;display:block}input[type=text],input[type=email],input[type=password]{border:1px solid var(--border);width:100%;color:var(--fg);font-family:inherit;font-size:inherit;background:#0a0b0e;border-radius:6px;margin-bottom:1rem;padding:.55rem .75rem;display:block}input:focus{outline:2px solid var(--accent);outline-offset:-1px}button[type=submit]{background:var(--accent);color:#06120a;cursor:pointer;font-family:inherit;font-weight:600;font-size:inherit;border:none;border-radius:6px;padding:.6rem 1.2rem;display:inline-block}button[type=submit]:disabled{opacity:.5;cursor:not-allowed}.msg-error{color:var(--error);margin-bottom:1rem;font-size:.9rem}.msg-info{color:var(--muted);margin-bottom:1rem;font-size:.9rem}.footer-link{color:var(--muted);margin-top:1rem;font-size:.85rem}