:root { --auth-navy: #102a2e; --auth-mint: #5ee0bd; --auth-text: #172b36; --auth-muted: #667985; }
* { box-sizing: border-box; }
.auth-body { min-height: 100vh; margin: 0; color: var(--auth-text); background: #f4f7fb; }
.auth-shell { display: grid; min-height: 100vh; }
.auth-brand-panel { position: relative; display: flex; flex-direction: column; min-height: 260px; padding: 1.5rem; overflow: hidden; color: #fff; background: var(--auth-navy); }
.auth-brand-panel::after { position: absolute; right: -120px; bottom: -150px; width: 390px; height: 390px; content: ""; border: 1px solid rgba(94,224,189,.18); border-radius: 50%; box-shadow: 0 0 0 70px rgba(94,224,189,.035), 0 0 0 140px rgba(94,224,189,.025); }
.auth-brand { position: relative; z-index: 1; display: inline-flex; align-items: center; gap: .75rem; width: fit-content; color: #fff; text-decoration: none; }
.auth-brand:hover { color: #fff; }
.auth-brand-mark { display: grid; width: 38px; height: 38px; place-items: center; color: var(--auth-navy); font-weight: 800; background: var(--auth-mint); border-radius: 11px; }
.auth-brand strong, .auth-brand small { display: block; }
.auth-brand strong { font-size: 1rem; }
.auth-brand small { margin-top: .15rem; color: #9eb9ba; font-size: .69rem; }
.auth-brand-message { position: relative; z-index: 1; max-width: 470px; margin: auto 0; padding: 2.5rem 0; }
.auth-eyebrow, .auth-kicker { color: var(--auth-mint); font-size: .68rem; font-weight: 800; letter-spacing: .13em; }
.auth-brand-message h1 { max-width: 390px; margin: .8rem 0 1rem; font-size: clamp(2rem, 5vw, 3.7rem); line-height: 1.06; letter-spacing: -.045em; }
.auth-brand-message p { max-width: 420px; margin: 0; color: #b9cece; font-size: .95rem; line-height: 1.7; }
.auth-security { position: relative; z-index: 1; display: flex; align-items: center; gap: .5rem; color: #86a6a7; font-size: .7rem; }
.auth-security span { width: 7px; height: 7px; background: var(--auth-mint); border-radius: 50%; box-shadow: 0 0 0 4px rgba(94,224,189,.1); }
.auth-brand-footer { position: relative; z-index: 1; display: grid; gap: .45rem; }
.auth-powered-by { padding-left: 1.2rem; color: #78999a; font-size: .66rem; }
.auth-powered-by a { color: #9eb9ba; font-weight: 650; text-decoration: none; }
.auth-powered-by a:hover, .auth-powered-by a:focus-visible { color: #d8e8e7; text-decoration: underline; }
.auth-content { display: grid; padding: 2rem 1rem; place-items: center; }
.auth-card { width: 100%; max-width: 450px; padding: clamp(1.5rem, 5vw, 2.5rem); background: #fff; border: 1px solid #e3eaf0; border-radius: 18px; box-shadow: 0 18px 50px rgba(34,57,70,.08); }
.auth-card-heading { margin-bottom: 1.7rem; }
.auth-kicker { color: #198f76; }
.auth-card-heading h2 { margin: .55rem 0 .45rem; font-size: 1.65rem; font-weight: 750; letter-spacing: -.03em; }
.auth-card-heading p { margin: 0; color: var(--auth-muted); font-size: .88rem; }
.auth-form { display: grid; gap: 1rem; }
.auth-form .form-label { margin-bottom: .4rem; color: #344b56; font-size: .78rem; font-weight: 700; }
.auth-form .form-control { min-height: 45px; border-color: #d7e0e6; border-radius: 9px; font-size: .9rem; }
.auth-form .form-control:focus, .auth-form .form-check-input:focus { border-color: #36b998; box-shadow: 0 0 0 .2rem rgba(54,185,152,.14); }
.auth-form .form-check-label { color: #536975; font-size: .82rem; }
.auth-form .form-check-input:checked { background-color: #198f76; border-color: #198f76; }
.auth-submit { min-height: 46px; margin-top: .25rem; color: var(--auth-navy); font-weight: 750; background: var(--auth-mint); border: 0; border-radius: 9px; }
.auth-submit:hover, .auth-submit:focus { color: var(--auth-navy); background: #78e8ca; }
.auth-switch { margin: 1.4rem 0 0; color: var(--auth-muted); font-size: .82rem; text-align: center; }
.auth-switch a { color: #147d69; font-weight: 700; text-decoration: none; }
.field-validation { display: block; margin-top: .3rem; font-size: .75rem; }
.validation-summary { margin: 0; padding: .7rem .85rem; font-size: .79rem; }
.validation-summary:empty, .validation-summary.validation-summary-valid { display: none; }
.validation-summary ul { margin: 0; padding-left: 1.1rem; }
@media (min-width: 850px) { .auth-shell { grid-template-columns: minmax(360px, 44%) minmax(0, 1fr); } .auth-brand-panel { min-height: 100vh; padding: clamp(2rem, 4vw, 4rem); } .auth-content { padding: 3rem; } }