:root{--bg:#0b0c10;--surface:#15171c;--border:#2a2d36;--text:#e6e8ee;--muted:#8b909d;--accent:#4fb7ff;--error:#ff6b6b}*{box-sizing:border-box}body,html{margin:0;padding:0;background:var(--bg);color:var(--text);font-family:ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;font-size:15px;line-height:1.55}a{color:var(--accent);text-decoration:none}a:hover{text-decoration:underline}button,input[type=email],input[type=password],input[type=text]{font:inherit;color:inherit;background:var(--surface);border:1px solid var(--border);border-radius:6px;padding:8px 12px;width:100%}button{cursor:pointer;background:var(--accent);color:#001020;border-color:transparent;font-weight:600}button[type=submit]:hover{filter:brightness(1.05)}button[disabled]{opacity:.6;cursor:not-allowed}.page{max-width:960px;margin:0 auto;padding:32px 20px}.card{background:var(--surface);border:1px solid var(--border);border-radius:10px;padding:24px}.muted{color:var(--muted)}.error{color:var(--error)}.stack>*+*{margin-top:12px}