body {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    background: linear-gradient(155deg, #ffffff 0%, var(--color-violet-tint) 60%, #dbeafe 100%);
}
.auth-content {
    flex: 1;
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem 1rem;
}
.auth-card {
    width: 100%;
    max-width: 430px;
    padding: 2.5rem;
    background: white;
    border: 1px solid var(--color-border-soft);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
}
.auth-card h1 { margin-bottom: 0.5rem; text-align: center; font-size: 1.5rem; }
.subtitle { margin-bottom: 2rem; color: var(--color-text-muted); text-align: center; font-size: 0.9rem; }
.alert-success {
    margin-bottom: 1.2rem;
    padding: 10px 14px;
    color: var(--color-success);
    background: var(--color-success-tint);
    border: 1px solid #A7F3D0;
    border-radius: var(--radius-md);
    font-size: 0.88rem;
}
.back-link { display: block; margin-top: 1.25rem; text-align: center; font-size: 0.88rem; }