.auth-section {
    padding: clamp(2.5rem, 6vw, 4rem) var(--content-space) clamp(4rem, 8vw, 5rem);
}

.auth-card {
    width: min(480px, 100%);
    margin-inline: auto;
    padding: clamp(1.5rem, 4vw, 2rem);
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
}

.auth-note {
    margin-bottom: 1.25rem;
    padding: 0.85rem 1rem;
    background: color-mix(in srgb, var(--brand-accent) 10%, var(--bg-primary));
    border: 1px solid color-mix(in srgb, var(--brand-accent) 28%, var(--border-color));
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    font-size: 0.92rem;
    line-height: 1.55;
}

.auth-error,
.auth-success {
    margin-bottom: 1rem;
    padding: 0.85rem 1rem;
    border-radius: var(--radius-sm);
    font-size: 0.92rem;
    line-height: 1.55;
}

.auth-error {
    background: #fdecea;
    border: 1px solid #f5c2c0;
    color: #8a2e2a;
}

.auth-success {
    background: color-mix(in srgb, var(--secondary-green) 12%, var(--bg-primary));
    border: 1px solid color-mix(in srgb, var(--secondary-green) 35%, var(--border-color));
    color: var(--dark-green);
}

.auth-form label {
    display: block;
    margin-top: 0.85rem;
    margin-bottom: 0.35rem;
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--text-muted);
}

.auth-form label:first-of-type {
    margin-top: 0;
}

.auth-form input {
    width: 100%;
    padding: 0.65rem 0.8rem;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    font: inherit;
    background: var(--bg-primary);
    color: var(--text-primary);
}

.auth-form input:focus {
    outline: none;
    border-color: var(--accent);
}

.auth-form .cta-button {
    width: 100%;
    margin-top: 1.35rem;
}

.auth-form .cta-button:disabled {
    opacity: 0.55;
    cursor: not-allowed;
    transform: none;
}

.auth-switch {
    margin-top: 1.25rem;
    text-align: center;
    color: var(--text-secondary);
    font-size: 0.92rem;
}

.auth-switch a {
    font-weight: 700;
}