.certino-login {
    margin: 0;
    min-height: 100vh;
    min-height: 100svh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 40px 24px;
    background: radial-gradient(ellipse at 15% 15%, #e7efff, transparent 55%), #f3f5f9;
    color: #172338;
    font-family: "Segoe UI", Arial, sans-serif;
    -webkit-font-smoothing: antialiased;
}
.certino-login * { box-sizing: border-box; }
.login-shell {
    display: grid;
    grid-template-columns: minmax(0, 1.2fr) minmax(340px, 1fr);
    width: min(1080px, 100%);
    border: 1px solid #dfe6ef;
    border-radius: 28px;
    overflow: hidden;
    background: #fff;
    box-shadow: 0 24px 80px #182e5512;
}
.login-info { padding: 48px; background: #121d30; color: #fff; }
.login-brand { display: flex; align-items: center; gap: 20px; }
.login-brand .certino-logo { width: 88px; height: 88px; }
.login-wordmark { font-size: 48px; font-weight: 650; letter-spacing: -.04em; }
.login-intro { margin-top: 48px; }
.login-intro h1 { margin: 0; font-size: clamp(32px, 3.3vw, 44px); line-height: 1.15; font-weight: 600; letter-spacing: -.03em; }
.login-intro p { max-width: 420px; margin: 22px 0 0; font-size: 19px; line-height: 1.6; color: #bbc9dc; }
.login-benefits { display: flex; flex-wrap: wrap; gap: 10px; list-style: none; padding: 28px 0 0; margin: 36px 0 0; border-top: 1px solid #344155; }
.login-benefits li { padding: 8px 13px; border-radius: 20px; background: #112e4d; color: #70bcff; font-size: 14px; line-height: 1.4; }
.login-form-box { padding: 56px 44px; align-self: center; min-width: 0; }
.login-eyebrow { color: #596a82; font-size: 12px; font-weight: 600; letter-spacing: .09em; text-transform: uppercase; }
.login-form-box h2 { margin: 12px 0; font-size: 30px; line-height: 1.2; font-weight: 600; letter-spacing: -.025em; }
.login-description { margin: 0 0 32px; color: #607087; font-size: 15px; line-height: 1.6; }
.login-form-box label { display: block; margin-bottom: 8px; font-size: 14px; font-weight: 600; }
.login-form-box input { width: 100%; min-width: 0; height: 50px; margin-bottom: 20px; padding: 0 14px; border: 1px solid #becbda; border-radius: 10px; background: #fff; color: #172338; font: inherit; font-size: 16px; }
.login-form-box input:focus { outline: 3px solid #2f75ee25; outline-offset: 1px; border-color: #2765d5; }
.login-form-box button { display: flex; align-items: center; justify-content: center; gap: 14px; width: 100%; min-height: 50px; margin-top: 6px; padding: 12px 18px; border: 0; border-radius: 10px; background: #2164df; color: white; font: inherit; font-weight: 600; cursor: pointer; }
.login-form-box button:hover { background: #184fb6; }
.login-form-box button:focus-visible { outline: 3px solid #173f8c; outline-offset: 3px; }
.login-help { margin: 26px 0 0; color: #637188; font-size: 13px; line-height: 1.65; }
.login-error { padding: 12px 14px; margin-bottom: 22px; border: 1px solid #efbec2; border-radius: 10px; background: #fff1f2; color: #a31e2b; font-size: 14px; line-height: 1.5; }
@media (max-width: 800px) {
    .certino-login { padding: 20px 16px; }
    .login-shell { grid-template-columns: minmax(0, 1fr); max-width: 480px; border-radius: 22px; }
    .login-info { padding: 26px 28px; }
    .login-brand { gap: 14px; }
    .login-brand .certino-logo { width: 56px; height: 56px; }
    .login-wordmark { font-size: 36px; }
    .login-intro { margin-top: 22px; }
    .login-intro h1 { font-size: 26px; }
    .login-intro h1 br { display: none; }
    .login-intro p { margin-top: 12px; font-size: 14px; line-height: 1.5; }
    .login-benefits { display: none; }
    .login-form-box { padding: 30px 28px; }
    .login-form-box h2 { font-size: 27px; }
    .login-description { margin-bottom: 24px; }
    .desktop-break { display: none; }
}
@media (max-width: 360px) {
    .certino-login { padding: 12px 8px; }
    .login-info, .login-form-box { padding: 24px 20px; }
}