body.login-page {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    padding: 0;
}

.login-page-main {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 24px;
}

.login-container {
    background: var(--surface-card, #fff);
    padding: 2rem;
    border-radius: 16px;
    box-shadow: 0 4px 18px color-mix(in srgb, var(--text-color-content, #1e293b) 8%, transparent);
    border: 1px solid var(--border-subtle, #e2e8f0);
    width: min(600px, 90vw);
    display: flex;
    flex-direction: column;
    gap: 1rem;
    box-sizing: border-box;
}

.login-container h2 {
    text-align: center;
    margin: 0 0 1rem;
    color: #312e81;
    letter-spacing: 0.04em;
}

label {
    font-weight: 500;
}

input[type="text"], input[type="password"] {
    padding: 0.85rem;
    border-radius: 10px;
    border: 1px solid var(--border-subtle);
    font-size: 1rem;
    width: 100%;
    box-sizing: border-box;
}

input[type="text"]:focus,
input[type="password"]:focus {
    outline: 2px solid #818cf8;
    outline-offset: 1px;
    border-color: #4f46e5;
}

#loginForm {
    display: flex;
    flex-direction: column;
    gap: 0.35rem;
}

#loginForm button[type="submit"] {
    width: 100%;
    box-sizing: border-box;
    margin-top: 0.65rem;
    padding: 0.85rem;
    background: var(--sunrise-red);
    color: #fff;
    border: none;
    border-radius: 10px;
    cursor: pointer;
    font-size: 1rem;
    font-weight: 600;
}

#loginForm button[type="submit"]:hover {
    background: var(--sunrise-red-hover);
}

.error {
    color: #ff4d4f;
    text-align: center;
    min-height: 1.2em;
}

.login-page--auth-ui .login-page-main {
    justify-content: center;
    align-items: center;
    width: 100%;
    max-width: 100vw;
    box-sizing: border-box;
    padding: 12px 20px 24px;
    min-height: 0;
}

body.login-page--auth-ui {
    overflow-x: hidden;
}

/* Handover / no_grant / ?debug=true — nur ein Login-Formular, kein iframe */
.login-page--alternative-only .login-page-main,
.login-page--handover-only .login-page-main {
    justify-content: center;
    align-items: center;
}

.login-page--alternative-only .login-auth-ui-shell,
.login-page--handover-only .login-auth-ui-shell {
    display: none !important;
}

.login-page--alternative-only .login-fallback,
.login-page--handover-only .login-fallback {
    display: flex !important;
    width: min(600px, 90vw);
    margin: 0 auto;
}

.login-fallback[hidden] {
    display: none !important;
}

.login-fallback {
    width: min(520px, calc(100vw - 40px));
    margin: 0 auto;
    padding: 1.25rem 1.5rem;
}

.login-fallback-title {
    margin: 0 0 0.75rem;
    text-align: center;
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-color-content, #1e1235);
}

.login-auth-ui-shell {
    width: min(520px, calc(100vw - 40px));
    max-width: 520px;
    margin: 0 auto;
    flex: 0 0 auto;
    height: min(720px, calc(100vh - 96px));
    min-height: 680px;
    display: block;
    overflow: hidden;
    border-radius: 16px;
    border: 1px solid var(--border-subtle, #e2e8f0);
    background: var(--surface-card, #fff);
    box-shadow: 0 4px 18px color-mix(in srgb, var(--text-color-content, #1e293b) 8%, transparent);
    box-sizing: border-box;
}

.login-auth-ui-frame {
    display: block;
    width: 100%;
    height: 100%;
    min-height: 680px;
    border: 0;
    border-radius: 0;
    background: var(--surface-card, #fff);
    box-shadow: none;
    overflow: hidden;
}

.login-debug-hint {
    margin: 0 0 1rem;
    padding: 0.5rem 0.75rem;
    font-size: 0.85rem;
    color: var(--rec-muted, #64748b);
    background: rgba(100, 116, 139, 0.08);
    border-radius: 6px;
}