*{box-sizing:border-box;margin:0;padding:0}
body.auth-body{font-family:"Segoe UI",system-ui,-apple-system,"Noto Sans Bengali",sans-serif;background:linear-gradient(160deg,#2563eb 0%,#1e40af 55%,#172554 100%);min-height:100vh;display:flex;align-items:center;justify-content:center;padding:20px}
.auth-card{background:#fff;width:100%;max-width:420px;border-radius:24px;padding:30px 26px;box-shadow:0 25px 60px rgba(0,0,0,.3)}
.auth-card.wide{max-width:640px}
.auth-logo{display:flex;justify-content:center;margin-bottom:14px;text-decoration:none;color:#2563eb;font-size:22px}
.auth-logo img{max-height:54px;max-width:200px}
h1{font-size:22px;text-align:center;color:#111827}
.auth-sub{text-align:center;color:#6b7280;font-size:14px;margin:4px 0 20px}
label{display:block;font-size:13px;font-weight:700;color:#374151;margin:12px 0 6px}
.in{position:relative}.in i{position:absolute;left:14px;top:50%;transform:translateY(-50%);color:#9ca3af;font-size:14px}
.in input{width:100%;padding:13px 14px 13px 40px;border:1.5px solid #e5e7eb;border-radius:12px;font-size:15px;outline:0;transition:.2s;background:#f9fafb}
.in input:focus{border-color:#2563eb;background:#fff;box-shadow:0 0 0 4px rgba(37,99,235,.12)}
.g2{display:grid;grid-template-columns:1fr 1fr;gap:0 14px}
@media(max-width:560px){.g2{grid-template-columns:1fr}}
.rem{display:flex;align-items:center;gap:8px;font-weight:600;font-size:13px;margin:14px 0}
.rem input{width:17px;height:17px}
.auth-btn{width:100%;padding:14px;border:0;border-radius:12px;background:linear-gradient(135deg,#2563eb,#1d4ed8);color:#fff;font-size:16px;font-weight:700;cursor:pointer;margin-top:6px;box-shadow:0 8px 20px rgba(37,99,235,.35)}
.auth-btn:hover{filter:brightness(1.06)}
.auth-foot{text-align:center;margin-top:18px;font-size:14px;color:#6b7280}.auth-foot a{color:#2563eb;font-weight:700;text-decoration:none}
.auth-alert{padding:11px 14px;border-radius:12px;font-size:13.5px;font-weight:600;margin-bottom:10px}
.auth-alert.bad{background:#fef2f2;color:#b91c1c;border:1px solid #fecaca}.auth-alert.ok{background:#ecfdf5;color:#047857;border:1px solid #a7f3d0}