/* ==========================================
   導入プロセスセクション - クリーン版（円図削除）
   4ステップカードを主役にしたシンプルデザイン
   ========================================== */

/* セクション全体 */
.process-section-clean {
    padding: 100px 0;
    background: linear-gradient(180deg, #E8F3FF 0%, #F5FAFF 100%);
    position: relative;
    overflow: hidden;
}

/* 背景インフォグラフィック（うっすら） */
.process-clean-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 0;
    opacity: 0.15;
    background-image: url('../images/intro-process-infographic.png');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    filter: blur(12px);
}

/* コンテンツ層 */
.process-clean-content {
    position: relative;
    z-index: 1;
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 20px;
}

/* ヘッダー */
.process-clean-header {
    text-align: center;
    margin-bottom: 60px;
}

.process-clean-title {
    font-size: 42px;
    font-weight: 700;
    color: #07193B;
    margin-bottom: 16px;
    line-height: 1.3;
}

.process-clean-subtitle {
    font-size: 18px;
    color: #64748b;
    font-weight: 400;
    line-height: 1.8;
    margin-bottom: 24px;
}

/* 細い下線 */
.process-title-underline {
    width: 80px;
    height: 3px;
    background: linear-gradient(90deg, #3b82f6, #06b6d4);
    margin: 0 auto;
    border-radius: 2px;
}

/* 4ステップカードグリッド */
.process-clean-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 28px;
    margin-bottom: 50px;
}

/* ステップカード */
.process-clean-card {
    background: #FFFFFF;
    border: 1px solid #E8EEF5;
    border-radius: 20px;
    padding: 40px 28px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
    transition: all 0.3s ease;
    text-align: center;
    position: relative;
    overflow: hidden;
}

/* カード上部グラデーションライン */
.process-clean-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--card-gradient-start), var(--card-gradient-end));
    opacity: 0;
    transition: opacity 0.3s ease;
}

.process-clean-card:hover::before {
    opacity: 1;
}

/* ホバーエフェクト */
.process-clean-card:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: 
        0 12px 40px rgba(0, 0, 0, 0.12),
        0 0 0 1px var(--card-gradient-start);
}

/* ステップ番号バッジ */
.process-step-number {
    width: 64px;
    height: 64px;
    background: linear-gradient(135deg, var(--card-gradient-start), var(--card-gradient-end));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 24px;
    font-size: 28px;
    font-weight: 700;
    color: #FFFFFF;
    box-shadow: 0 6px 20px rgba(59, 130, 246, 0.3);
    transition: all 0.3s ease;
}

.process-clean-card:hover .process-step-number {
    transform: scale(1.05);
    box-shadow: 0 10px 30px rgba(59, 130, 246, 0.4);
}

/* アイコン（番号の代わりにアイコンを使う場合） */
.process-step-icon {
    font-size: 32px;
}

/* ステップラベル */
.process-step-label-text {
    font-size: 11px;
    font-weight: 700;
    color: var(--card-gradient-start);
    text-transform: uppercase;
    letter-spacing: 1.2px;
    margin-bottom: 12px;
    display: block;
}

/* ステップタイトル */
.process-step-title-text {
    font-size: 20px;
    font-weight: 700;
    color: #07193B;
    margin-bottom: 16px;
    line-height: 1.4;
}

/* ステップ説明 */
.process-step-description-text {
    font-size: 14px;
    color: #64748b;
    line-height: 1.7;
    margin: 0;
}

/* ステップ別カラー定義 */
.process-clean-card[data-step="1"] {
    --card-gradient-start: #3b82f6;
    --card-gradient-end: #60a5fa;
}

.process-clean-card[data-step="2"] {
    --card-gradient-start: #06b6d4;
    --card-gradient-end: #22d3ee;
}

.process-clean-card[data-step="3"] {
    --card-gradient-start: #f59e0b;
    --card-gradient-end: #fbbf24;
}

.process-clean-card[data-step="4"] {
    --card-gradient-start: #10b981;
    --card-gradient-end: #34d399;
}

/* 下部メッセージエリア */
.process-bottom-message {
    text-align: center;
    padding: 32px 40px;
    background: linear-gradient(135deg, #F8FAFF 0%, #FFFFFF 100%);
    border: 1px solid #E8EEF5;
    border-radius: 16px;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.04);
    margin-bottom: 0;
}

.process-bottom-text {
    font-size: 16px;
    color: #475569;
    line-height: 1.8;
    margin: 0;
}

.process-bottom-text strong {
    color: #07193B;
    font-weight: 700;
}

/* CTAボタンエリア */
.process-cta-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
}

.process-cta-primary {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 16px 32px;
    background: linear-gradient(135deg, #3b82f6, #2563eb);
    color: #FFFFFF;
    font-size: 16px;
    font-weight: 700;
    border: none;
    border-radius: 40px;
    text-decoration: none;
    box-shadow: 0 6px 20px rgba(59, 130, 246, 0.3);
    transition: all 0.3s ease;
    cursor: pointer;
}

.process-cta-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(59, 130, 246, 0.4);
}

.process-cta-primary i {
    font-size: 18px;
}

.process-cta-secondary {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 16px 32px;
    background: #FFFFFF;
    color: #3b82f6;
    font-size: 16px;
    font-weight: 700;
    border: 2px solid #3b82f6;
    border-radius: 40px;
    text-decoration: none;
    transition: all 0.3s ease;
    cursor: pointer;
}

.process-cta-secondary:hover {
    background: #EFF6FF;
    transform: translateY(-2px);
}

.process-cta-secondary i {
    font-size: 18px;
}

/* レスポンシブデザイン */
@media (max-width: 1200px) {
    .process-clean-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 24px;
    }
}

@media (max-width: 768px) {
    .process-section-clean {
        padding: 60px 0;
    }
    
    .process-clean-title {
        font-size: 32px;
    }
    
    .process-clean-subtitle {
        font-size: 16px;
    }
    
    .process-clean-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .process-clean-card {
        padding: 32px 24px;
    }
    
    .process-step-number {
        width: 56px;
        height: 56px;
        font-size: 24px;
    }
    
    .process-step-title-text {
        font-size: 18px;
    }
    
    .process-bottom-message {
        padding: 24px 20px;
    }
    
    .process-bottom-text {
        font-size: 14px;
    }
}

@media (max-width: 480px) {
    .process-clean-title {
        font-size: 28px;
    }
    
    .process-step-title-text {
        font-size: 16px;
    }
    
    .process-step-description-text {
        font-size: 13px;
    }
}

/* アニメーション */
.process-clean-card {
    animation: fadeInUp 0.6s ease-out backwards;
}

.process-clean-card[data-step="1"] {
    animation-delay: 0.1s;
}

.process-clean-card[data-step="2"] {
    animation-delay: 0.2s;
}

.process-clean-card[data-step="3"] {
    animation-delay: 0.3s;
}

.process-clean-card[data-step="4"] {
    animation-delay: 0.4s;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* アクセシビリティ対応 */
@media (prefers-reduced-motion: reduce) {
    .process-clean-card,
    .process-step-number {
        animation: none;
        transition: none;
    }
    
    .process-clean-card:hover {
        transform: none;
    }
}

/* プリント対応 */
@media print {
    .process-section-clean {
        background: white;
        padding: 20px 0;
    }
    
    .process-clean-background {
        display: none;
    }
    
    .process-clean-card {
        break-inside: avoid;
        box-shadow: none;
        border: 1px solid #ccc;
    }
}