/* ========================================
   ログイン・同期UI スタイル
   ======================================== */

.auth-card {
    background: rgba(30, 35, 40, 0.6);
    border: 1px solid rgba(200, 155, 60, 0.3);
    border-radius: 12px;
    padding: var(--spacing-lg);
    margin: var(--spacing-lg) 0;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

.auth-info {
    margin-bottom: var(--spacing-md);
    text-align: center;
}

#user-info {
    color: var(--success-color);
    font-size: 0.95rem;
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
}

.sync-status {
    padding: 8px 16px;
    border-radius: 6px;
    font-size: 0.9rem;
    font-weight: 500;
    margin: var(--spacing-sm) auto;
    max-width: 300px;
}

.sync-status.success {
    background: rgba(0, 208, 132, 0.2);
    color: var(--success-color);
    border: 1px solid var(--success-color);
}

.sync-status.error {
    background: rgba(209, 54, 57, 0.2);
    color: var(--error-color);
    border: 1px solid var(--error-color);
}

.sync-status.info {
    background: rgba(3, 151, 171, 0.2);
    color: var(--secondary-color);
    border: 1px solid var(--secondary-color);
}

.auth-buttons {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    align-items: center;
}

.btn-google {
    background: linear-gradient(135deg, #4285F4, #34A853);
    color: white;
    border: none;
    padding: 12px 24px;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 8px rgba(66, 133, 244, 0.3);
    width: 100%;
    max-width: 320px;
}

.btn-google:hover {
    background: linear-gradient(135deg, #5a95f5, #46b865);
    transform: translateY(-2px);
    box-shadow: 0 6px 12px rgba(66, 133, 244, 0.4);
}

.btn-google:active {
    transform: translateY(0);
}

.btn-sync {
    background: rgba(3, 151, 171, 0.2);
    color: var(--secondary-color);
    border: 1px solid var(--secondary-color);
    padding: 10px 20px;
    border-radius: 6px;
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    max-width: 200px;
}

.btn-sync:hover {
    background: rgba(3, 151, 171, 0.3);
    border-color: #04B8D4;
    color: #04B8D4;
}

.btn-sync:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.auth-note {
    margin-top: var(--spacing-md);
    font-size: 0.85rem;
    color: var(--text-light);
    text-align: center;
    line-height: 1.5;
}

/* ========================================
   レスポンシブ対応
   ======================================== */

@media (max-width: 768px) {
    .auth-card {
        padding: var(--spacing-md);
    }

    .btn-google {
        font-size: 0.9rem;
        padding: 10px 20px;
    }

    .auth-note {
        font-size: 0.8rem;
    }
}