/* 開発手法専用スタイル */

/* 開発メインビジュアル */
.dev_main_img {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    text-align: center;
    padding: 120px 0 80px;
}

.dev_main_img_title {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 2rem;
    letter-spacing: 0.1em;
}

.dev_main_img_subtitle {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    opacity: 0.9;
    line-height: 1.8;
}

/* 開発概要セクション */
.dev_about_top {
    text-align: center;
    margin-bottom: 4rem;
}

.dev_about_top .title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 2rem;
    color: #333;
}

.dev_about_top_txt {
    font-size: 1.1rem;
    line-height: 1.8;
    color: #666;
    max-width: 800px;
    margin: 0 auto;
}

/* 開発手法カード */
.dev_point_list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 3rem;
    margin-top: 3rem;
}

.dev_point_list li {
    background: white;
    border-radius: 15px;
    padding: 2.5rem;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
    text-align: center;
    transition: transform 0.3s ease;
}

.dev_point_list li:hover {
    transform: translateY(-5px);
}

.dev_point_icon {
    font-size: 3rem;
    margin-bottom: 1.5rem;
}

.dev_prototype { color: #667eea; }
.dev_agile { color: #764ba2; }
.dev_cost { color: #f093fb; }

.dev_point_list h4 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: #333;
}

.dev_point_list p {
    color: #666;
    line-height: 1.8;
}

/* 開発プロセスセクション */
.dev_process_list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.dev_process_list li {
    background: white;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 5px 20px rgba(0,0,0,0.1);
    transition: transform 0.3s ease;
}

.dev_process_list li:hover {
    transform: translateY(-3px);
}

.dev_process_img {
    height: 200px;
    background: linear-gradient(45deg, #667eea, #764ba2);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 3rem;
}

.dev_process_txt {
    padding: 2rem;
}

.dev_process_txt h4 {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: #333;
}

.dev_process_txt p {
    color: #666;
    line-height: 1.7;
}

/* 開発フローセクション */
.dev_flow_section {
    background: #f8f9fa;
    padding: 4rem 0;
    margin: 4rem 0;
}

.dev_flow_list {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 2rem;
    margin-top: 3rem;
}

.dev_flow_item {
    background: white;
    padding: 2rem;
    border-radius: 15px;
    text-align: center;
    box-shadow: 0 5px 20px rgba(0,0,0,0.1);
    flex: 1;
    min-width: 200px;
    max-width: 300px;
    position: relative;
}

.dev_flow_item:not(:last-child)::after {
    content: '→';
    position: absolute;
    right: -1.5rem;
    top: 50%;
    transform: translateY(-50%);
    font-size: 2rem;
    color: #667eea;
    font-weight: bold;
}

.dev_flow_number {
    font-size: 2.5rem;
    font-weight: 700;
    color: #667eea;
    margin-bottom: 1rem;
}

.dev_flow_title {
    font-size: 1.2rem;
    font-weight: 600;
    color: #333;
    margin-bottom: 1rem;
}

.dev_flow_desc {
    color: #666;
    line-height: 1.6;
}

/* メリットセクション */
.dev_benefits_list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.dev_benefits_list li {
    background: white;
    padding: 2rem;
    border-radius: 15px;
    text-align: center;
    box-shadow: 0 5px 20px rgba(0,0,0,0.1);
    border-left: 4px solid #667eea;
}

.dev_benefits_icon {
    font-size: 2.5rem;
    color: #667eea;
    margin-bottom: 1rem;
}

.dev_benefits_list h4 {
    font-size: 1.2rem;
    font-weight: 600;
    color: #333;
    margin-bottom: 1rem;
}

.dev_benefits_list p {
    color: #666;
    line-height: 1.7;
}

/* 事例セクション */
.dev_cases_list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.dev_case_card {
    background: white;
    border-radius: 15px;
    padding: 2rem;
    box-shadow: 0 5px 20px rgba(0,0,0,0.1);
    border-left: 4px solid #667eea;
}

.dev_case_title {
    font-size: 1.3rem;
    font-weight: 600;
    color: #333;
    margin-bottom: 1rem;
}

.dev_case_desc {
    color: #666;
    line-height: 1.8;
    margin-bottom: 1rem;
}

.dev_case_result {
    background: #f8f9fa;
    padding: 1rem;
    border-radius: 8px;
    font-weight: 600;
    color: #667eea;
}

/* 開発ツールセクション */
.dev_tools_list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    margin-top: 3rem;
}

.dev_tools_list li {
    background: white;
    padding: 1.5rem;
    border-radius: 10px;
    text-align: center;
    box-shadow: 0 3px 15px rgba(0,0,0,0.1);
    transition: transform 0.3s ease;
}

.dev_tools_list li:hover {
    transform: translateY(-3px);
}

.dev_tools_icon {
    font-size: 2rem;
    color: #667eea;
    margin-bottom: 0.5rem;
}

.dev_tools_list h4 {
    font-size: 1rem;
    font-weight: 600;
    color: #333;
}

/* CTAセクション */
.dev_cta_section {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    text-align: center;
    padding: 4rem 0;
}

.dev_cta_button {
    display: inline-block;
    background: white;
    color: #667eea;
    padding: 1rem 2rem;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    margin-top: 2rem;
    transition: transform 0.3s ease;
}

.dev_cta_button:hover {
    transform: translateY(-2px);
}

/* レスポンシブ対応 */
@media (max-width: 768px) {
    .dev_main_img_title {
        font-size: 2.5rem;
    }
    
    .dev_point_list,
    .dev_process_list,
    .dev_benefits_list,
    .dev_cases_list,
    .dev_tools_list {
        grid-template-columns: 1fr;
    }
    
    .dev_flow_list {
        flex-direction: column;
    }
    
    .dev_flow_item::after {
        display: none;
    }
    
    .dev_about_top .title {
        font-size: 2rem;
    }
}

/* 開発専用アニメーション */
.dev_fade_in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.dev_fade_in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* プログレスバー */
.dev_progress_bar {
    width: 100%;
    height: 8px;
    background: #e9ecef;
    border-radius: 4px;
    overflow: hidden;
    margin: 1rem 0;
}

.dev_progress_fill {
    height: 100%;
    background: linear-gradient(90deg, #667eea, #764ba2);
    border-radius: 4px;
    transition: width 0.8s ease;
}

.dev_progress_60 { width: 60%; }
.dev_progress_80 { width: 80%; }
.dev_progress_100 { width: 100%; }