:root { --rex-lime: #26867c; --rex-lime-deep: #183153; }
body { margin: 0; }

.rex-login {
    min-height: 100vh;
    min-height: 100dvh;
    display: flex;
    align-items: center;
    justify-content: center;
    box-sizing: border-box;
    padding: 32px 20px;
    background: #edf2f7;
    color: #183153;
    font-size: 16px;
    line-height: 1.5;
    color-scheme: light;
}

.rex-login .rex-login-card {
    box-sizing: border-box;
    padding: 32px;
    background: #fff;
    border: 1px solid #cbd5e1;
    box-shadow: 0 12px 32px rgba(24, 49, 83, 0.1);
}

.rex-login h1 { font-size: 30px; line-height: 1.2; margin: 0 0 12px; }
.rex-login p { margin: 0; color: #475569; }
.rex-login form + p { margin-top: 24px; font-size: 14px; }
.rex-login label { display: block; margin: 20px 0 8px; font-weight: 600; }

.rex-login input:not([type="hidden"]) {
    width: 100%;
    min-height: 48px;
    padding: 12px;
    box-sizing: border-box;
    border: 1px solid #64748b;
    border-radius: 6px;
    background: #fff;
    color: #183153;
    font: inherit;
}

.rex-login button {
    width: 100%;
    min-height: 48px;
    padding: 12px 24px;
    margin-top: 24px;
    border: 1px solid #17665e;
    border-radius: 6px;
    background: #17665e;
    color: #fff;
    font: inherit;
    font-weight: 600;
    cursor: pointer;
}

.rex-login button:hover { background: #124f49; }
.rex-login input:focus, .rex-login button:focus-visible {
    outline: 3px solid #2563eb;
    outline-offset: 3px;
}

.rex-login [role="alert"] {
    margin-top: 20px;
    padding: 12px;
    border: 1px solid #b91c1c;
    border-radius: 6px;
    background: #fef2f2;
    color: #991b1b;
}

@media (max-width: 480px) {
    .rex-login { padding: 24px 16px; }
    .rex-login .rex-login-card { padding: 24px; }
    .rex-login h1 { font-size: 26px; }
}