/* 메인 페이지 스타일 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: #333333;
    background-color: #ffffff;
}

.main-content {
    width: 100%;
}

/* 히어로 섹션 (슬라이더) */
.hero-section {
    position: relative;
    overflow: hidden;
    min-height: 500px;
    /* background: linear-gradient(135deg, #667eea 0%, #764ba2 100%); */
}

.hero-slider {
    position: relative;
    width: 100%;
    height: 500px;
}

.hero-slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.8s ease, visibility 0.8s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
}

/* 각 슬라이드별 배경 이미지 */
.hero-slide.slide-1 {
    background-image: url('../img/slide__1.jpg');
}

.hero-slide.slide-2 {
    background-image: url('../img/slide__2.jpg');
}

.hero-slide.slide-3 {
    background-image: url('../img/slide__3.jpg');
}

/* 배경 오버레이 (텍스트 가독성 향상) */
.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    /* background: linear-gradient(135deg, rgba(102, 126, 234, 0.85) 0%, rgba(118, 75, 162, 0.85) 100%); */
    z-index: 1;
}

.hero-slide.active {
    opacity: 1;
    visibility: visible;
    z-index: 1;
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 40px;
    position: relative;
    z-index: 2;
}

.hero-content {
    text-align: center;
    color: #ffffff;
    position: relative;
    z-index: 2;
}

.hero-title {
    font-size: 64px;
    font-weight: 700;
    margin-bottom: 20px;
    letter-spacing: -1px;
    animation: fadeInUp 0.8s ease;
}

.hero-subtitle {
    font-size: 28px;
    font-weight: 500;
    margin-bottom: 20px;
    opacity: 0.95;
    animation: fadeInUp 0.8s ease 0.2s both;
}

.hero-description {
    font-size: 18px;
    margin-bottom: 40px;
    opacity: 0.9;
    line-height: 1.8;
    animation: fadeInUp 0.8s ease 0.4s both;
}

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

.hero-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
}

.btn {
    padding: 16px 40px;
    font-size: 16px;
    font-weight: 600;
    text-decoration: none;
    border-radius: 6px;
    transition: all 0.3s ease;
    display: inline-block;
    cursor: pointer;
}

.btn-primary {
    background-color: #ffffff;
    color: #dc143c;
}

.btn-primary:hover {
    background-color: #f8f9fa;
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
}

.btn-secondary {
    background-color: transparent;
    color: #ffffff;
    border: 2px solid #ffffff;
}

.btn-secondary:hover {
    background-color: rgba(255, 255, 255, 0.1);
    transform: translateY(-2px);
}

/* 슬라이더 버튼 */
.slider-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background-color: rgba(255, 255, 255, 0.3);
    color: #ffffff;
    border: none;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    font-size: 32px;
    cursor: pointer;
    z-index: 10;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.slider-btn:hover {
    background-color: rgba(255, 255, 255, 0.5);
    transform: translateY(-50%) scale(1.1);
}

.prev-btn {
    left: 30px;
}

.next-btn {
    right: 30px;
}

/* 슬라이더 인디케이터 */
.slider-indicators {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 12px;
    z-index: 10;
}

.indicator {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.4);
    cursor: pointer;
    transition: all 0.3s ease;
}

.indicator:hover {
    background-color: rgba(255, 255, 255, 0.7);
}

.indicator.active {
    background-color: #ffffff;
    width: 30px;
    border-radius: 6px;
}

/* 섹션 공통 스타일 */
.section-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 80px 40px;
}

.section-title {
    font-size: 42px;
    font-weight: 700;
    text-align: center;
    margin-bottom: 16px;
    color: #1a1a1a;
}

.section-description {
    font-size: 18px;
    text-align: center;
    color: #666666;
    margin-bottom: 60px;
}

/* 모바일에서만 줄바꿈 표시 */
.mobile-break {
    display: none;
}

@media (max-width: 768px) {
    .mobile-break {
        display: inline;
    }
}

/* 제품 섹션 */
.products-section {
    background-color: #ffffff;
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
}

.product-card {
    background-color: #ffffff;
    padding: 40px;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
    border: 1px solid #e5e5e5;
}

.product-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.15);
}

.product-title {
    font-size: 26px;
    font-weight: 700;
    margin-bottom: 16px;
    color: #1a1a1a;
}

.product-description {
    font-size: 16px;
    color: #666666;
    margin-bottom: 24px;
    line-height: 1.7;
}

.product-link {
    color: #dc143c;
    text-decoration: none;
    font-weight: 600;
    font-size: 16px;
    transition: color 0.3s ease;
}

.product-link:hover {
    color: #dc143c;
}

/* 서비스 섹션 */
.services-section {
    background-color: #f8f9fa;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 30px;
}

.service-card {
    background-color: #ffffff;
    padding: 40px 30px;
    border-radius: 10px;
    box-shadow: 0 2px 15px rgba(0, 0, 0, 0.06);
    transition: all 0.3s ease;
    text-align: center;
    border: 1px solid #e5e5e5;
}

.service-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.12);
}

.service-title {
    font-size: 22px;
    font-weight: 700;
    margin-bottom: 16px;
    color: #1a1a1a;
}

.service-description {
    font-size: 15px;
    color: #666666;
    margin-bottom: 20px;
    line-height: 1.7;
}

.service-link {
    color: #667eea;
    text-decoration: none;
    font-weight: 600;
    font-size: 15px;
    transition: color 0.3s ease;
}

.service-link:hover {
    color: #764ba2;
}

/* CTA 섹션 */
.cta-section {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: #ffffff;
}

.cta-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 100px 40px;
    text-align: center;
}

.cta-title {
    font-size: 42px;
    font-weight: 700;
    margin-bottom: 20px;
}

.cta-description {
    font-size: 18px;
    margin-bottom: 40px;
    opacity: 0.95;
}

.btn-cta {
    background-color: #ffffff;
    color: #667eea;
    padding: 18px 50px;
    font-size: 18px;
}

.btn-cta:hover {
    background-color: #f8f9fa;
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

/* 반응형 디자인 */
@media (max-width: 768px) {
    .hero-slider {
        height: 500px;
    }
    
    .hero-section {
        min-height: 500px;
    }
    
    .hero-title {
        font-size: 42px;
    }
    
    .hero-subtitle {
        font-size: 22px;
    }
    
    .hero-description {
        font-size: 16px;
    }
    
    .slider-btn {
        width: 40px;
        height: 40px;
        font-size: 24px;
    }
    
    .prev-btn {
        left: 15px;
    }
    
    .next-btn {
        right: 15px;
    }
    
    .slider-indicators {
        bottom: 20px;
    }
    
    .section-container {
        padding: 60px 20px;
    }
    
    .section-title {
        font-size: 32px;
    }
    
    .section-description {
        font-size: 16px;
        margin-bottom: 40px;
    }
    
    .products-grid,
    .services-grid {
        grid-template-columns: 1fr;
        gap: 25px;
    }
    
    .cta-container {
        padding: 80px 20px;
    }
    
    .cta-title {
        font-size: 32px;
    }
    
    .cta-description {
        font-size: 16px;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 36px;
    }
    
    .hero-subtitle {
        font-size: 20px;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .btn {
        width: 100%;
        max-width: 300px;
    }
}