*{box-sizing:border-box}
:root{--blue-dark:#123b63;--blue:#1769aa;--blue-light:#eaf4fb;--text:#243746;--border:#d7e1e8;--danger:#a52828;--danger-bg:#fdecec}
body{margin:0;min-height:100vh;font-family:Arial,Helvetica,sans-serif;color:var(--text);background:linear-gradient(135deg,#eef6fb,#fff)}
.container{width:100%;min-height:100vh;display:flex;align-items:center;justify-content:center;padding:20px}
.card{width:100%;max-width:460px;background:#fff;border:1px solid var(--border);border-radius:18px;padding:32px 26px;box-shadow:0 12px 35px rgba(18,59,99,.10)}
.brand{text-align:center;margin-bottom:28px;color:var(--blue-dark);font-size:30px;font-weight:700}.brand strong{display:block;color:var(--blue);font-size:20px}
h1{text-align:center;font-size:25px;color:var(--blue-dark);margin:0 0 8px}.intro{text-align:center;color:#647786;margin:0 0 24px}
.access-options{display:grid;gap:14px}.access-button,.primary-button{min-height:58px;border:0;border-radius:12px;background:var(--blue);color:#fff;font-size:17px;font-weight:700;text-decoration:none;display:flex;align-items:center;justify-content:center;gap:12px;cursor:pointer}.access-button:hover,.primary-button:hover{background:var(--blue-dark)}
label{display:block;margin-bottom:7px;font-weight:700}input{width:100%;height:50px;padding:0 14px;border:1px solid var(--border);border-radius:10px;font-size:16px;margin-bottom:16px}.primary-button{width:100%}
.alert{padding:12px 14px;margin-bottom:18px;border-radius:10px;background:var(--danger-bg);color:var(--danger);text-align:center;font-weight:700}
.info-box{background:var(--blue-light);border-radius:10px;padding:16px;text-align:center;line-height:1.5}.back-link{display:block;margin-top:22px;text-align:center;color:var(--blue);text-decoration:none}
@media(max-width:480px){.container{padding:12px}.card{padding:26px 18px;border-radius:14px}.brand{font-size:27px}}