.auth-container {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    background: var(--bg-light);
    padding: 20px;
}

.auth-box {
    background: #ffffff;
    border-radius: var(--radius);
    padding: 48px;
    max-width: 480px;
    width: 100%;
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow);
}

.auth-logo {
    text-align: center;
    margin-bottom: 32px;
}

.auth-logo img { height: 48px; width: auto; }

.auth-tabs {
    display: flex;
    gap: 8px;
    margin-bottom: 32px;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 16px;
}

.auth-tab {
    background: transparent;
    border: none;
    color: var(--text-muted);
    padding: 10px 20px;
    cursor: pointer;
    font-weight: 500;
    transition: var(--transition);
    border-radius: var(--radius-sm);
    font-size: 0.95rem;
    flex: 1;
    text-align: center;
}

.auth-tab i {
    margin-right: 8px;
}

.auth-tab.active {
    color: var(--primary);
    background: rgba(247,147,26,0.08);
}

.auth-tab:hover { color: var(--primary); }

.auth-form { display: none; }
.auth-form.active { display: block; }

.auth-form h2 {
    font-size: 1.8rem;
    margin-bottom: 8px;
    color: var(--text-dark);
}

.auth-form h2 i {
    color: var(--primary);
}

.auth-form p {
    color: var(--text-muted);
    margin-bottom: 24px;
}

.auth-links {
    margin-top: 16px;
    text-align: center;
}

.auth-links a {
    color: var(--text-muted);
    font-size: 0.9rem;
    transition: var(--transition);
}

.auth-links a:hover {
    color: var(--primary);
}

.auth-links a i {
    margin-right: 6px;
}

@media (max-width: 480px) {
    .auth-box { padding: 32px 24px; }
    .auth-tabs { flex-wrap: wrap; }
    .auth-tab { flex: 1; text-align: center; padding: 8px 12px; font-size: 0.85rem; }
}
@keyframes shake {
    0%, 100% { transform: translateX(0); }
    10%, 30%, 50%, 70%, 90% { transform: translateX(-10px); }
    20%, 40%, 60%, 80% { transform: translateX(10px); }
}

.shake {
    animation: shake 0.5s ease-in-out;
}

.auth-error {
    color: #dc3545;
    margin-top: 12px;
    font-size: 0.9rem;
    transition: all 0.3s ease;
}

.auth-box {
    transition: all 0.3s ease;
}