*{box-sizing:border-box}
body{margin:0;font-family:Arial,Helvetica,sans-serif;background:#f4f7fb;color:#172033}
.login-shell{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:24px}
.login-card{width:100%;max-width:520px;background:#fff;border:1px solid #dce3ec;border-radius:14px;padding:28px;box-shadow:0 8px 30px rgba(20,40,70,.08)}
h1{margin-top:0;color:#123b68}
label{display:block;font-weight:700;margin:16px 0 7px}
input{width:100%;padding:12px;border:1px solid #cfd9e6;border-radius:8px;font:inherit}
.button{display:inline-block;margin-top:18px;background:#0e6be6;color:#fff;border:0;border-radius:8px;padding:12px 18px;font-weight:700;text-decoration:none;cursor:pointer}
.notice{padding:13px 15px;border-radius:8px;margin:16px 0}
.error{background:#fff1f1;color:#9b1c1c}
.success{background:#eaf8f0;color:#126b3b}
.warning{color:#9b1c1c;font-weight:700}
.family-choice{margin:10px 0}
.family-button{width:100%;text-align:left;margin:0;display:flex;justify-content:space-between;gap:15px}
.family-button span{font-weight:400;opacity:.9}