/* ========================================
   Tab Showcase Styles
   タブ切り替えショーケーススタイル
   ======================================== */

/* Tab Container */
.tab-showcase-wrapper {
    background: #fff;
    padding: 80px 0;
}

/* Tab Buttons */
.service-tabs {
    display: flex;
    justify-content: center;
    gap: 0;
    margin-bottom: 60px;
    border-bottom: 1px solid #e0e0e0;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.service-tab-btn {
    flex: 1;
    padding: 20px 40px;
    background: transparent;
    border: none;
    font-size: 18px;
    font-weight: 600;
    color: #999;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    letter-spacing: 0.05em;
}

.service-tab-btn:hover {
    color: #666;
}

.service-tab-btn.active {
    color: #333;
}

.service-tab-btn.active::after {
    content: '';
    position: absolute;
    bottom: -1px;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(135deg, #817d6c, #928c7b);
    transition: all 0.3s ease;
}

/* Tab Content */
.service-tab-content {
    display: none;
    animation: fadeIn 0.5s ease;
}

.service-tab-content.active {
    display: block;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Section Header inside Tab */
.tab-section-header {
    text-align: center;
    margin-bottom: 60px;
}

.tab-section-title {
    font-size: 42px;
    font-weight: 600;
    margin-bottom: 12px;
    color: #333;
}

.tab-section-subtitle {
    font-size: 14px;
    letter-spacing: 3px;
    color: #999;
    text-transform: uppercase;
    margin-bottom: 24px;
}

.tab-section-description {
    font-size: 15px;
    line-height: 1.8;
    color: #666;
    max-width: 700px;
    margin: 0 auto;
}

/* ========================================
   Responsive Design
   ======================================== */

/* Tablet */
@media (max-width: 1024px) {
    .service-tab-btn {
        padding: 18px 30px;
        font-size: 16px;
    }

    .tab-section-title {
        font-size: 36px;
    }
}

/* Mobile */
@media (max-width: 768px) {
    .tab-showcase-wrapper {
        padding: 60px 0;
    }

    .service-tabs {
        margin-bottom: 40px;
    }

    .service-tab-btn {
        padding: 16px 20px;
        font-size: 15px;
    }

    .tab-section-header {
        margin-bottom: 40px;
        padding: 0 16px;
    }

    .tab-section-title {
        font-size: 32px;
    }

    .tab-section-subtitle {
        font-size: 12px;
        letter-spacing: 2px;
    }

    .tab-section-description {
        font-size: 14px;
    }
}

/* Small Mobile */
@media (max-width: 480px) {
    .service-tab-btn {
        padding: 14px 16px;
        font-size: 14px;
    }

    .tab-section-title {
        font-size: 28px;
    }
}