/* 5-2 제니스와 시작하면 달라지는 4가지 변화 섹션 전용 스타일 */

.shopping-changes-section {
    background: linear-gradient(135deg, #1f2937 0%, #374151 100%);
    padding: 120px 0;
    position: relative;
    color: white;
}

.changes-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* 섹션 타이틀 */
.changes-title {
    font-size: 3rem;
    font-weight: 800;
    text-align: center;
    margin-bottom: 2rem;
    color: #5B21B6;
    line-height: 1.2;
    text-shadow: 0 2px 4px rgba(91, 33, 182, 0.1);
}

/* 리드 카피 */
.changes-lead {
    font-size: 1.5rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: 2rem;
    color: #ffffff;
    line-height: 1.4;
}

/* 설명 문구 */
.changes-description {
    font-size: 1.1rem;
    line-height: 1.8;
    text-align: center;
    margin-bottom: 4rem;
    color: #e5e7eb;
    max-width: 900px;
    margin-left: auto;
    margin-right: auto;
    font-weight: 500;
}

/* 변화 카드 그리드 */
.changes-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 3rem;
    margin-bottom: 4rem;
}

.change-card {
    background: rgba(255, 255, 255, 0.1);
    padding: 3rem;
    border-radius: 20px;
    box-shadow: 0 10px 24px rgba(0, 0, 0, 0.2);
    text-align: center;
    position: relative;
    overflow: hidden;
    transition: all 0.3s ease;
    border: 2px solid rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
}

.change-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, #5B21B6, #14B8A6);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.change-card:hover::before {
    transform: scaleX(1);
}

.change-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(91, 33, 182, 0.15);
    border-color: #5B21B6;
}

/* 아이콘 영역 */
.change-icon {
    width: 100px;
    height: 100px;
    margin: 0 auto 2rem;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.5rem;
    position: relative;
    transition: all 0.3s ease;
}

.change-card:hover .change-icon {
    transform: scale(1.1);
}

/* 아이콘별 색상 */
.change-icon.efficiency {
    background: linear-gradient(135deg, #14B8A6, #0EA5E9);
    color: white;
}

.change-icon.automation {
    background: linear-gradient(135deg, #3B82F6, #8B5CF6);
    color: white;
}

.change-icon.conversion {
    background: linear-gradient(135deg, #FACC15, #F59E0B);
    color: white;
}

.change-icon.retention {
    background: linear-gradient(135deg, #F43F5E, #EC4899);
    color: white;
}

/* 아이콘 펄스 효과 */
.change-icon::after {
    content: '';
    position: absolute;
    top: -10px;
    left: -10px;
    right: -10px;
    bottom: -10px;
    border: 2px solid currentColor;
    border-radius: 50%;
    opacity: 0;
    transition: all 0.3s ease;
}

.change-card:hover .change-icon::after {
    opacity: 0.3;
    transform: scale(1.2);
}

/* 카드 타이틀 */
.change-title {
    font-size: 1.4rem;
    font-weight: 700;
    color: #ffffff;
    margin-bottom: 1rem;
    transition: all 0.3s ease;
}

.change-card:hover .change-title {
    color: #5B21B6;
    transform: translateY(-4px);
}

/* 카드 설명 */
.change-description {
    font-size: 1rem;
    line-height: 1.6;
    color: #d1d5db;
    transition: all 0.3s ease;
}

.change-card:hover .change-description {
    color: #374151;
    transform: translateY(-4px);
}

/* 변화 번호 */
.change-number {
    position: absolute;
    top: 1.5rem;
    left: 1.5rem;
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, #5B21B6, #14B8A6);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1.1rem;
    box-shadow: 0 4px 12px rgba(91, 33, 182, 0.3);
}

/* 강조 문구 */
.highlight-message {
    text-align: center;
    margin-top: 4rem;
    padding: 3rem;
    background: linear-gradient(135deg, #f3e8ff, #e0e7ff);
    border-radius: 20px;
    border: 2px solid #5B21B6;
    position: relative;
    overflow: hidden;
}

.highlight-message::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(91, 33, 182, 0.1) 0%, transparent 70%);
    animation: rotate 20s linear infinite;
}

@keyframes rotate {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.highlight-text {
    font-size: 1.5rem;
    font-weight: 600;
    color: #5B21B6;
    line-height: 1.6;
    margin: 0;
    position: relative;
    z-index: 2;
}

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

@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.8);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

.changes-grid {
    animation: fadeInUp 0.8s ease-out;
}

.change-card {
    animation: scaleIn 0.6s ease-out both;
}

.change-card:nth-child(1) { animation-delay: 0.1s; }
.change-card:nth-child(2) { animation-delay: 0.2s; }
.change-card:nth-child(3) { animation-delay: 0.3s; }
.change-card:nth-child(4) { animation-delay: 0.4s; }

.highlight-message {
    animation: fadeInUp 0.8s ease-out 0.6s both;
}

/* 호버 효과 강화 */
.change-card {
    cursor: pointer;
}

.change-card:hover {
    transform: translateY(-15px) scale(1.02);
}

.change-card:hover .change-icon {
    transform: scale(1.15) rotate(5deg);
}

.change-card:hover .change-number {
    transform: scale(1.1);
    box-shadow: 0 6px 20px rgba(91, 33, 182, 0.4);
}

/* 반응형 디자인 */
@media (max-width: 1024px) {
    .changes-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .change-card {
        padding: 2.5rem;
    }
}

@media (max-width: 768px) {
    .shopping-changes-section {
        padding: 80px 0;
    }
    
    .changes-title {
        font-size: 2.5rem;
    }
    
    .changes-lead {
        font-size: 1.3rem;
    }
    
    .change-card {
        padding: 2rem;
    }
    
    .change-icon {
        width: 80px;
        height: 80px;
        font-size: 2rem;
    }
    
    .change-title {
        font-size: 1.2rem;
    }
    
    .highlight-text {
        font-size: 1.3rem;
    }
}

@media (max-width: 480px) {
    .changes-title {
        font-size: 2rem;
    }
    
    .changes-lead {
        font-size: 1.1rem;
    }
    
    .change-card {
        padding: 1.5rem;
    }
    
    .change-icon {
        width: 60px;
        height: 60px;
        font-size: 1.5rem;
    }
    
    .change-title {
        font-size: 1.1rem;
    }
    
    .change-description {
        font-size: 0.9rem;
    }
    
    .highlight-text {
        font-size: 1.1rem;
    }
    
    .change-number {
        width: 30px;
        height: 30px;
        font-size: 0.9rem;
        top: 1rem;
        left: 1rem;
    }
}