/* 폰트 */
@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+KR:wght@100;300;400;500;700;900&display=swap');
@import url('https://fonts.googleapis.com/css2?family=Google+Sans:wght@400;500;700&family=Roboto:wght@300;400;500;700&display=swap');

/* 기본 스타일 리셋 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Google Sans', 'Noto Sans KR', Roboto, -apple-system, BlinkMacSystemFont, 'Segoe UI', Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
}

/* 스크롤 관련 설정 */
html {
    scroll-behavior: smooth;
}

body {
    color: #202124;
    background-color: #ffffff;
    line-height: 1.5;
    font-weight: 400;
    overflow-x: hidden;
}

:root {
    --primary-color: #ff6b5a;
    /* 메인 살구색 */
    --primary-hover: #e65d4f;
    /* 호버 시 진한 살구색 */
    --primary-light: #fff3f1;
    /* 연한 살구 배경 */
    --primary-alpha-10: rgba(255, 107, 90, 0);
    --primary-alpha-20: rgba(255, 107, 90, 0);
}

/* 섹션 공통 스타일 */
section {
    position: relative;
    padding: 80px 0;
    overflow: hidden;
}

/* 컨테이너 스타일 */
.container {
    max-width: 1440px;
    margin: 0 auto;
    padding: 0 48px;
    position: relative;
    z-index: 2;
}

/* 헤더 스타일 */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 80px;
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 48px;
    z-index: 1000;
    transition: all 0.3s ease;
    box-shadow: 0 1px 2px rgba(60, 64, 67, 0.3), 0 1px 3px 1px rgba(60, 64, 67, 0.15);
}

.logo {
    height: 60px;
    display: flex;
    align-items: center;
}

.logo img {
    height: 40px;
}

/* 내비게이션 스타일 */
.nav-items {
    display: flex;
    list-style: none;
    gap: 40px;
}

.nav-item {
    font-size: 16px;
    font-weight: 500;
    cursor: pointer;
    color: #5f6368;
    transition: all 0.2s ease;
    position: relative;
}

.nav-item::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--primary-color);
    transition: width 0.3s ease;
}

.nav-item:hover {
    color: #202124;
}

.nav-item:hover::after {
    width: 100%;
}

/* 버튼 스타일 */
.button {
    display: inline-block;
    padding: 12px 24px;
    font-size: 14px;
    font-weight: 500;
    border-radius: 24px;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    text-align: center;
}

.button-primary {
    background-color: var(--primary-color);
    color: #ffffff;
    border: none;
}

.button-primary:hover {
    background-color: var(--primary-hover);
    transform: translateY(-3px);
    box-shadow: 0 1px 2px rgba(60, 64, 67, 0.3), 0 1px 3px 1px rgba(60, 64, 67, 0.15);
}

.button-secondary {
    background-color: transparent;
    color: var(--primary-color);
    border: 1px solid #dadce0;
}

.button-secondary:hover {
    background-color: var(--primary-alpha-10);
    border-color: var(--primary-color);
    transform: translateY(-3px);
}

/* 모바일 메뉴 버튼 */
.menu-btn {
    display: none;
    width: 48px;
    height: 48px;
    background: none;
    border: none;
    cursor: pointer;
    justify-content: center;
    align-items: center;
}

.menu-btn-line {
    position: relative;
    width: 24px;
    height: 24px;
}

.menu-btn-line span {
    display: block;
    position: absolute;
    width: 100%;
    height: 2px;
    background-color: #5f6368;
    transition: all 0.3s ease;
}

.menu-btn-line span:nth-child(1) {
    top: 8px;
}

.menu-btn-line span:nth-child(2) {
    top: 16px;
}

/* 언어 선택 스타일 */
.language-selector {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-left: 20px;
}

.language-link {
    font-size: 14px;
    font-weight: 500;
    color: #5f6368;
    text-decoration: none;
    padding: 6px 8px;
    border-radius: 4px;
    transition: all 0.2s ease;
}

.language-link:hover {
    color: #202124;
    background-color: rgba(0, 0, 0, 0.04);
}

.language-link.active {
    color: var(--primary-color);
    font-weight: 600;
}

.language-separator {
    color: #dadce0;
    font-size: 14px;
}

/* 모바일 언어 선택 */
.mobile-language-selector {
    display: flex;
    gap: 20px;
    padding: 20px 0;
    border-bottom: 1px solid #dadce0;
    margin-bottom: 20px;
}

.mobile-language-link {
    font-size: 16px;
    font-weight: 500;
    color: #5f6368;
    text-decoration: none;
    transition: all 0.3s ease;
}

.mobile-language-link:hover {
    color: var(--primary-hover);
}

.mobile-language-link.active {
    color: var(--primary-color);
    font-weight: 600;
}

/* 반응형 스타일 */
@media (max-width: 992px) {
    .language-selector {
        display: none;
    }
}

/* 히어로 섹션 스타일 */
.hero-section {
    height: 100vh;
    padding: 0;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
    background-color: #f8f9fa;
}

.hero-video-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 1;
    z-index: 1;
}

.hero-video-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to bottom, rgba(248, 249, 250, 0.7) 0%, rgba(248, 249, 250, 0.5) 50%, rgba(248, 249, 250, 0.8) 100%);
    z-index: 2;
}

.hero-video-placeholder {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at center, var(--primary-light) 0%, #f8f9fa 100%);
    z-index: 1;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 18px;
    color: #5f6368;
    text-transform: uppercase;
    letter-spacing: 2px;
}

.hero-content {
    max-width: 1000px;
    position: relative;
    z-index: 3;
}

.hero-badge {
    font-size: 16px;
    font-weight: 500;
    color: var(--primary-color);
    margin-bottom: 24px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.hero-title {
    font-size: 64px;
    font-weight: 700;
    line-height: 1.1;
    margin-bottom: 24px;
    color: #202124;
}

.hero-title .highlight {
    color: var(--primary-color);
    position: relative;
    display: inline-block;
}

.hero-title .highlight::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 8px;
    background-color: var(--primary-alpha-20);
    z-index: -1;
}

.hero-subtitle {
    font-size: 24px;
    font-weight: 300;
    margin-bottom: 40px;
    max-width: 700px;
    color: #5f6368;
}

.hero-buttons {
    display: flex;
    gap: 20px;
}

.hero-scroll-indicator {
    position: absolute;
    bottom: 48px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    z-index: 3;
    opacity: 0.7;
    animation: bounce 2s infinite;
}

.hero-scroll-indicator span {
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 8px;
    color: #5f6368;
}

.hero-scroll-icon {
    width: 30px;
    height: 50px;
    border: 2px solid #5f6368;
    border-radius: 15px;
    position: relative;
}

.hero-scroll-icon::before {
    content: '';
    position: absolute;
    top: 8px;
    left: 50%;
    transform: translateX(-50%);
    width: 8px;
    height: 8px;
    background-color: #5f6368;
    border-radius: 50%;
    animation: scrollDown 2s infinite;
}

@keyframes scrollDown {
    0% {
        opacity: 1;
        top: 8px;
    }

    100% {
        opacity: 0;
        top: 32px;
    }
}

@keyframes bounce {

    0%,
    20%,
    50%,
    80%,
    100% {
        transform: translateY(0) translateX(-50%);
    }

    40% {
        transform: translateY(-10px) translateX(-50%);
    }

    60% {
        transform: translateY(-5px) translateX(-50%);
    }
}

/* 섹션 제목 스타일 */
.section-title-container {
    margin-bottom: 80px;
    text-align: center;
}

.section-title-badge {
    font-size: 16px;
    font-weight: 500;
    color: var(--primary-color);
    margin-bottom: 16px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.section-title {
    font-size: 48px;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 24px;
    color: #202124;
}

.section-description {
    font-size: 20px;
    font-weight: 300;
    max-width: 800px;
    margin: 0 auto;
    color: #5f6368;
}

/* 로고 섹션 스타일 */
.logo-section {
    padding: 80px 0;
    background-color: #f8f9fa;
    position: relative;
}

.logo-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 128px;
}

.main-logo {
    display: flex;
    justify-content: center;
    align-items: center;
}

.large-logo {
    height: 150px;
    max-width: 100%;
    object-fit: contain;
    filter: drop-shadow(0 4px 8px rgba(0, 0, 0, 0.1));
}

/* 로고 섹션의 CES 수상 배지 */
.logo-award-badge {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
}

.logo-award-badge .award-icon {
    width: 512px;
    height: 512px;
    object-fit: contain;
    filter: drop-shadow(0 4px 8px rgba(0, 0, 0, 0.1));
}

.logo-award-badge span {
    display: inline-flex;
    align-items: center;
    padding: 12px 24px;
    /*background: linear-gradient(135deg, #ffd700 0%, #ffed4a 100%);*/
    border-radius: 25px;
    font-size: 16px;
    font-weight: 600;
    /*color: #8b5000;*/
    text-transform: uppercase;
    letter-spacing: 0.5px;
    /*box-shadow: 0 4px 12px rgba(255, 215, 0, 0.3);*/
    /*animation: gentle-glow 2s ease-in-out infinite alternate;*/
}

/* 모바일 반응형 */
@media (max-width: 768px) {
    .logo-section {
        padding: 60px 0;
    }

    .logo-content {
        gap: 30px;
    }

    .large-logo {
        height: 80px;
    }

    .logo-award-badge .award-icon {
        width: 256px;
        height: 256px;
    }

    .logo-award-badge span {
        font-size: 14px;
        padding: 10px 20px;
    }
}

/* 컨텐츠 섹션 스타일 */
.content-section {
    padding: 120px 0;
    background-color: #ffffff;
    position: relative;
}

.content-cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin-top: 60px;
}

.content-card {
    position: relative;
    background: #ffffff;
    border-radius: 16px;
    overflow: hidden;
    transition: all 0.3s ease;
    height: 100%;
    display: flex;
    flex-direction: column;
    box-shadow: 0 1px 2px rgba(60, 64, 67, 0.3), 0 1px 3px 1px rgba(60, 64, 67, 0.15);
    aspect-ratio: 1/1.78;
    /* 1:1.78 비율 */
}

.content-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 8px 16px rgba(60, 64, 67, 0.3), 0 16px 32px rgba(60, 64, 67, 0.6);
}

.content-card-video {
    position: relative;
    flex: 1;
    overflow: hidden;
}

.content-video {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    transition: all 0.3s ease;
}

.content-card:hover .content-video {
    transform: scale(1.05);
}

.content-card-content {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 32px;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.8) 0%, rgba(0, 0, 0, 0.4) 50%, rgba(0, 0, 0, 0) 100%);
    color: #ffffff;
}

.content-card-icon {
    width: 48px;
    height: 48px;
    margin-bottom: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: rgba(255, 255, 255, 0.2);
    border-radius: 12px;
    backdrop-filter: blur(10px);
}

.content-card-icon img {
    width: 28px;
    height: 28px;
    object-fit: contain;
    filter: brightness(0) invert(1);
    /* 아이콘을 흰색으로 변경 */
}

.content-card-title {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 12px;
    color: #ffffff;
    position: relative;
}

/* 제목 밑에 파란색 줄 추가 */
.content-card-title::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 0;
    width: 128px;
    height: 3px;
    background-color: var(--primary-color);
    transition: all 0.3s ease;
}

/* 호버 시 줄이 길어지는 애니메이션 */
.content-card:hover .content-card-title::after {
    width: 116px;
}

.content-card-icon {
    width: 48px;
    height: 48px;
    margin-bottom: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: rgba(255, 255, 255, 0.2);
    border-radius: 12px;
    backdrop-filter: blur(10px);
    transition: all 0.3s ease;
    /* 추가 */
}

/* 호버 시 아이콘 박스가 파란색으로 변하는 애니메이션 */
.content-card:hover .content-card-icon {
    background-color: var(--primary-color);
}

.content-card-description {
    font-size: 14px;
    line-height: 1.5;
    color: rgba(255, 255, 255, 0.9);
}

/* 반응형 스타일 */
@media (max-width: 1200px) {
    .content-cards {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .content-cards {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .content-card {
        aspect-ratio: 1/1.78;
    }
}

/* 특징 섹션 스타일 */
.feature-section {
    padding: 120px 0;
    background-color: #ffffff;
    position: relative;
    overflow: hidden;
}

.feature-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at 70% 50%, var(--primary-alpha-10) 0%, rgba(0, 0, 0, 0) 70%);
    z-index: 1;
}

.feature-card {
    display: flex;
    align-items: center;
    gap: 80px;
    margin-top: 60px;
    position: relative;
    z-index: 2;
}

.feature-card.reverse {
    flex-direction: row-reverse;
}

.feature-media {
    flex: 1;
    position: relative;
}

.feature-image-container {
    position: relative;
    padding-bottom: 178%;
    /* 16:9 비율 */
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 4px 8px rgba(60, 64, 67, 0.2), 0 8px 16px rgba(60, 64, 67, 0.1);
}

.feature-image-placeholder {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--primary-light) 0%, #f8f9fa 100%);
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 16px;
    color: #5f6368;
    text-transform: uppercase;
    letter-spacing: 2px;
}

.feature-image-placeholder video {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    border-radius: 16px;
}

.feature-content {
    flex: 1;
}

.feature-badge {
    font-size: 16px;
    font-weight: 500;
    color: var(--primary-color);
    margin-bottom: 16px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.feature-title {
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 24px;
    line-height: 1.2;
    color: #202124;
}

.feature-description {
    font-size: 18px;
    line-height: 1.6;
    color: #5f6368;
    margin-bottom: 32px;
}

.feature-list {
    list-style: none;
    margin-bottom: 32px;
}

.feature-list-item {
    display: flex;
    align-items: flex-start;
    margin-bottom: 16px;
}

.feature-list-icon {
    min-width: 24px;
    height: 24px;
    margin-right: 16px;
    background-color: var(--primary-light);
    border-radius: 50%;
    position: relative;
}

.feature-list-icon::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 8px;
    height: 8px;
    background-color: var(--primary-color);
    border-radius: 50%;
}

.feature-list-text {
    font-size: 16px;
    line-height: 1.6;
    color: #5f6368;
}

/* 테스티모니얼 섹션 스타일 */
.testimonial-section {
    padding: 120px 0;
    background: #ffffff;
    position: relative;
    overflow: hidden;
}

.testimonial-container {
    position: relative;
    z-index: 2;
    max-width: 1000px;
    margin: 0 auto;
}

.testimonial-slider {
    position: relative;
    margin-top: 60px;
    overflow: hidden;
}

.testimonial-grid {
    display: flex;
    width: 300%;
    /* 4페이지 * 100% */
    transition: transform 0.5s ease;
}

.testimonial-page {
    display: flex;
    flex-direction: column;
    gap: 30px;
    width: 33.33%;
    /* 전체의 1/4 */
    flex-shrink: 0;
    padding: 15px;
    /* 상하좌우 모든 방향에 패딩 추가 */
}

.testimonial-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 4px 8px rgba(60, 64, 67, 0.2), 0 8px 16px rgba(60, 64, 67, 0.1);
}

.testimonial-item {
    background-color: #ffffff;
    border-radius: 16px;
    padding: 40px;
    position: relative;
    box-shadow: 0 1px 2px rgba(60, 64, 67, 0.3), 0 1px 3px 1px rgba(60, 64, 67, 0.15);
    width: 100%;
    min-height: auto;
    /* 높이 고정 제거 */
}

.testimonial-item::before {
    content: '"';
    position: absolute;
    top: 20px;
    left: 20px;
    font-size: 100px;
    font-weight: 700;
    color: var(--primary-alpha-10);
    line-height: 1;
    z-index: 1;
}

.testimonial-text {
    font-size: 20px;
    line-height: 1.7;
    margin-bottom: 32px;
    position: relative;
    z-index: 2;
    color: #202124;
}

.testimonial-author {
    display: flex;
    align-items: center;
}

.testimonial-author-image {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    overflow: hidden;
    margin-right: 20px;
    background-color: var(--primary-light);
}

.testimonial-author-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.testimonial-author-info {
    flex: 1;
}

.testimonial-author-name {
    font-size: 18px;
    font-weight: 500;
    margin-bottom: 4px;
    color: #202124;
}

.testimonial-author-title {
    font-size: 14px;
    color: #5f6368;
}

.testimonial-controls {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-top: 40px;
}

.testimonial-control {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background-color: #ffffff;
    border: 1px solid #dadce0;
    display: flex;
    justify-content: center;
    align-items: center;
    cursor: pointer;
    transition: all 0.3s ease;
}

.testimonial-control:hover {
    background-color: var(--primary-light);
    border-color: var(--primary-color);
}

.testimonial-control svg {
    width: 24px;
    height: 24px;
    fill: none;
    stroke: #5f6368;
    stroke-width: 2;
}

/* 유즈케이스 섹션 스타일 */
.usecase-section {
    padding: 80px 24px;
    background-color: #ffffff;
    position: relative;
    overflow: hidden;
}

.usecase-section .container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    /* makes sure content is padded inside container */
    box-sizing: border-box;
}

.usecase-group {
    margin-bottom: 80px;
}

@media (max-width: 768px) {
    .usecase-section {
        padding: 60px 16px;
    }

    .usecase-section .container {
        padding: 0 16px;
    }

    .usecase-group {
        margin-bottom: 60px;
    }
}

.usecase-group {
    margin-bottom: 80px;
}

.usecase-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at 30% 50%, var(--primary-alpha-10) 0%, rgba(0, 0, 0, 0) 70%);
    z-index: 1;
}

.usecase-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin-top: 60px;
}

.usecase-item {
    position: relative;
    background: #ffffff;
    border-radius: 16px;
    overflow: hidden;
    cursor: pointer;
    box-shadow: 0 1px 2px rgba(60, 64, 67, 0.3), 0 1px 3px 1px rgba(60, 64, 67, 0.15);
    transition: all 0.3s ease;
    height: 300px;
    display: flex;
    flex-direction: column;
}

.usecase-item:hover {
    transform: translateY(-10px);
    box-shadow: 0 4px 8px rgba(60, 64, 67, 0.2), 0 8px 16px rgba(60, 64, 67, 0.1);
}

.usecase-image {
    position: absolute;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: all 0.5s ease;
}

.usecase-image-placeholder {
    width: 100%;
    height: 200px;
    background: linear-gradient(135deg, var(--primary-light) 0%, #f8f9fa 100%);
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 16px;
    color: #5f6368;
    text-transform: uppercase;
    letter-spacing: 2px;
}

.usecase-image-container {
    width: 100%;
    height: 200px;
    overflow: hidden;
    position: relative;
}

.usecase-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    /* div 크기에 맞춰서 이미지 크롭 */
    object-position: center;
    /* 이미지 중앙 정렬 */
}

.usecase-content {
    padding: 24px;
    flex: 1;
    display: flex;
    flex-direction: column;
    position: relative;
    z-index: 2;
}

.usecase-title {
    font-size: 20px;
    font-weight: 500;
    margin-bottom: 8px;
    color: #202124;
    position: relative;
}

.usecase-title::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 0;
    width: 40px;
    height: 3px;
    background-color: var(--primary-color);
    transition: all 0.3s ease;
}

.usecase-item:hover .usecase-title::after {
    width: 116px;
}

.usecase-description {
    font-size: 14px;
    color: #5f6368;
    line-height: 1.5;
    margin-top: 16px;
    /*max-height: 0;*/
    /*overflow: hidden;*/
    /*opacity: 0;*/
    /*transition: all 0.3s ease;*/
}

/*.usecase-item:hover .usecase-description {*/
/*    max-height: 100px;*/
/*    opacity: 1;*/
/*}*/

/* CTA 섹션 스타일 */
.cta-section {
    padding: 120px 0;
    background: var(--primary-light);
    position: relative;
    overflow: hidden;
}

.cta-gradient {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at center, var(--primary-alpha-10) 0%, rgba(0, 0, 0, 0) 70%);
    z-index: 1;
}

.cta-container {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
    position: relative;
    z-index: 2;
}

.cta-title {
    font-size: 48px;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 24px;
    color: #202124;
}

.cta-description {
    font-size: 20px;
    font-weight: 300;
    margin-bottom: 40px;
    color: #5f6368;
}

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

/* 푸터 스타일 */
footer {
    background-color: #ffffff;
    padding: 80px 0 40px;
    position: relative;
    overflow: hidden;
    border-top: 1px solid #dadce0;
}

.footer-container {
    position: relative;
    z-index: 2;
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 40px;
}

.footer-logo {
    margin-bottom: 24px;
}

.footer-logo img {
    height: 40px;
}

.footer-description {
    font-size: 14px;
    color: #5f6368;
    max-width: 400px;
    margin-bottom: 32px;
}

.footer-social {
    display: flex;
    gap: 16px;
}

.footer-social-link {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: #f8f9fa;
    display: flex;
    justify-content: center;
    align-items: center;
    transition: all 0.3s ease;
}

.footer-social-link:hover {
    background-color: var(--primary-light);
    transform: translateY(-3px);
}

.footer-social-icon {
    width: 32px;
    height: auto;
    opacity: 0.7;
}

.footer-column-title {
    font-size: 16px;
    font-weight: 500;
    color: #202124;
    margin-bottom: 24px;
}

.footer-links {
    list-style: none;
}

.footer-link-item {
    margin-bottom: 12px;
}

.footer-link {
    font-size: 14px;
    color: #5f6368;
    text-decoration: none;
    transition: all 0.3s ease;
}

.footer-link:hover {
    color: var(--primary-color);
}

.footer-bottom {
    margin-top: 80px;
    padding-top: 20px;
    border-top: 1px solid #dadce0;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 20px;
}

.footer-copyright {
    font-size: 14px;
    color: #5f6368;
}

.footer-bottom-links {
    display: flex;
    gap: 24px;
}

.footer-bottom-link {
    font-size: 14px;
    color: #5f6368;
    text-decoration: none;
    transition: all 0.3s ease;
}

.footer-bottom-link:hover {
    color: var(--primary-color);
}

/* 트레일러 섹션 스타일 */
.trailer-section {
    padding: 120px 0;
    background-color: #f8f9fa;
    position: relative;
    color: #ffffff;
}

.trailer-section .section-title-container {
    margin-bottom: 60px;
}

.trailer-section .section-title-badge {
    color: var(--primary-color);
}

.trailer-video-container {
    max-width: 1200px;
    margin: 0 auto;
    position: relative;
}

.video-wrapper {
    position: relative;
    width: 100%;
    height: 0;
    padding-bottom: 56.25%;
    /* 16:9 비율 */
    overflow: hidden;
    border-radius: 16px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

.video-wrapper iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border-radius: 16px;
}

/* 반응형 스타일 */
@media (max-width: 1200px) {
    .trailer-video-container {
        max-width: 100%;
        padding: 0 20px;
    }
}

@media (max-width: 768px) {
    .trailer-section {
        padding: 80px 0;
    }

    .trailer-section .section-title-container {
        margin-bottom: 40px;
    }

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

    .video-wrapper {
        border-radius: 12px;
        box-shadow: 0 10px 20px rgba(0, 0, 0, 0.3);
    }

    .video-wrapper iframe {
        border-radius: 12px;
    }
}

@media (max-width: 480px) {
    .trailer-video-container {
        padding: 0 10px;
    }

    .video-wrapper {
        border-radius: 8px;
    }

    .video-wrapper iframe {
        border-radius: 8px;
    }
}

/* 애니메이션 */
.fade-in {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 1s ease, transform 1s ease;
}

.fade-in.active {
    opacity: 1;
    transform: translateY(0);
}

/* 반응형 스타일 */
@media (max-width: 1200px) {
    .container {
        padding: 0 40px;
    }

    .hero-title {
        font-size: 56px;
    }

    .section-title {
        font-size: 42px;
    }

    .usecase-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .footer-container {
        grid-template-columns: 1fr 1fr 1fr;
    }
}

@media (max-width: 992px) {
    .nav-items {
        display: none;
    }

    .menu-btn {
        display: flex;
    }

    .hero-title {
        font-size: 48px;
    }

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

    .feature-card {
        flex-direction: column;
        gap: 40px;
    }

    .feature-card.reverse {
        flex-direction: column;
    }

    .footer-container {
        grid-template-columns: 1fr 1fr;
        gap: 40px;
    }

    /* iPad 세로 전용 미디어쿼리 */
    @media (min-width: 768px) and (max-width: 992px) {
        .feature-image-container {
            padding-bottom: 0;
            /* padding-bottom 제거 */
            height: 50vh;
            /* 직접 높이 지정 */
            width: 60%;
            /* 너비도 제한 */
            margin: 0 auto;
            /* 중앙 정렬 */
        }

        .feature-image-placeholder {
            position: relative;
            /* absolute → relative */
            width: 100%;
            height: 100%;
            border-radius: 16px;
            overflow: hidden;
        }

        .feature-image-placeholder video {
            width: 100%;
            height: 100%;
            object-fit: cover;
            border-radius: 16px;
        }
    }
}

@media (max-width: 768px) {
    .container {
        padding: 0 24px;
    }

    .hero-title {
        font-size: 36px;
    }

    .hero-subtitle {
        font-size: 18px;
    }

    .hero-buttons {
        flex-direction: column;
        width: 100%;
    }

    .button {
        width: 100%;
        text-align: center;
    }

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

    .feature-image-container {
        margin-bottom: 30px;
    }

    .feature-media {
        width: 100%;
        max-width: 100%;
    }

    .feature-image-placeholder {
        font-size: 14px;
        text-align: center;
    }

    .feature-image-placeholder video {
        width: 100%;
        height: 100%;
        object-fit: cover;
        border-radius: 16px;
    }

    .usecase-grid {
        grid-template-columns: 1fr;
    }

    .testimonial-grid {
        grid-template-columns: 1fr;
    }

    .testimonial-page {
        grid-template-columns: 1fr;
    }

    .testimonial-item {
        padding: 30px;
    }

    .testimonial-text {
        font-size: 18px;
    }

    .cta-title {
        font-size: 36px;
    }

    .cta-buttons {
        flex-direction: column;
        width: 100%;
    }

    .footer-container {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .footer-bottom {
        flex-direction: column;
        align-items: flex-start;
    }

    .content-card-title::after {
        width: 40px;
        transition: width 0.8s ease 0.5s;
        /* 0.5초 지연 후 0.8초 동안 */
    }

    .content-card-icon {
        transition: background-color 0.8s ease 0.5s;
        /* 0.3초 지연 후 */
    }

    .content-card.fade-in.active .content-card-title::after {
        width: 116px;
    }

    .content-card.fade-in.active .content-card-icon {
        background-color: var(--primary-color);
    }

    /* 유즈케이스 섹션 */
    .usecase-title::after {
        transition: width 0.8s ease 0.5s;
        /* 지연 추가 */
    }

    .usecase-card-group {
        display: flex;
        flex-direction: row;
        overflow-x: auto;
        scroll-snap-type: x mandatory;
        gap: 24px;
        padding-bottom: 16px;
        width: 100vw;
        box-sizing: border-box;
        padding-left: calc(50vw - 160px);
        /* Center first card (160px is half card width) */
        /* Remove right padding and justify-content */
        -ms-overflow-style: none;
        scrollbar-width: none;
    }

    .usecase-card-group::-webkit-scrollbar {
        display: none;
    }

    .usecase-card-group {
        display: flex;
        flex-direction: row;
        overflow-x: auto;
        scroll-snap-type: x mandatory;
        gap: 24px;
        padding-bottom: 16px;
        width: 100vw;
        box-sizing: border-box;
        -ms-overflow-style: none;
        scrollbar-width: none;
    }

    .usecase-card-group::-webkit-scrollbar {
        display: none;
    }

    /* Center the first card in each group */
    .usecase-card-group .content-card:first-child {
        margin-left: auto;
        margin-right: auto;
    }

    .usecase-item.fade-in.active .usecase-title::after {
        width: 116px;
    }
}

/* 모바일 메뉴 스타일 */
.mobile-menu {
    position: fixed;
    top: 80px;
    left: 0;
    width: 100%;
    height: calc(100vh - 80px);
    background-color: rgba(255, 255, 255, 0.8);
    z-index: 999;
    padding: 40px 24px;
    transform: translateX(100%);
    transition: all 0.3s ease;
    overflow-y: auto;
}

.mobile-menu.active {
    transform: translateX(0);
}

.mobile-nav-items {
    list-style: none;
}

.mobile-nav-item {
    margin-bottom: 24px;
}

.mobile-nav-link {
    display: block;
    font-size: 18px;
    font-weight: 500;
    color: #202124;
    text-decoration: none;
    transition: all 0.3s ease;
}

.mobile-nav-link:hover {
    color: var(--primary-color);
}

.menu-btn.active .menu-btn-line span:nth-child(1) {
    transform: rotate(45deg) translate(2px, 2px);
    top: 11px;
}

.menu-btn.active .menu-btn-line span:nth-child(2) {
    transform: rotate(-45deg);
    top: 11px;
}

.usecase-scroll-container {
    display: flex;
    flex-direction: column;
    gap: 48px;
    align-items: center;
    width: 100%;
    overflow: hidden; /* Prevent horizontal overflow on container */
}

.usecase-card-group {
    display: flex;
    flex-direction: row;
    gap: 24px;
    padding-bottom: 16px;
    box-sizing: border-box;
    -ms-overflow-style: none;
    scrollbar-width: none;
    
    /* Modern scrolling with proper snap */
    scroll-behavior: smooth;
    overscroll-behavior-x: contain;
}

.usecase-card-group::-webkit-scrollbar {
    display: none;
}

.content-card {
    flex-shrink: 0;
    scroll-snap-align: start;
}

/* Mobile-first approach */
/* Small screens: horizontal scroll with proper padding */
@media (max-width: 640px) {
    .usecase-card-group {
        width: 100vw;
        overflow-x: auto;
        scroll-snap-type: x mandatory;
        padding: 0 max(20px, calc((100vw - 280px) / 2)) 16px 20px;
        /* Left padding ensures first card is visible, right padding centers when fewer cards */
    }
    
    .content-card {
        min-width: 280px;
        max-width: 280px;
    }
}

/* Medium screens: horizontal scroll with better spacing */
@media (min-width: 641px) and (max-width: 1023px) {
    .usecase-card-group {
        width: 100%;
        max-width: min(100vw, 1200px);
        margin: 0 auto;
        overflow-x: auto;
        scroll-snap-type: x mandatory;
        padding: 0 max(24px, calc((100vw - 900px) / 2)) 16px 24px;
        /* Dynamic padding that adapts to screen size */
    }
    
    .content-card {
        min-width: 320px;
        max-width: 350px;
    }
}

/* Large screens: centered grid layout */
@media (min-width: 1024px) {
    .usecase-card-group {
        width: 100%;
        max-width: 1200px;
        margin: 0 auto;
        justify-content: center;
        flex-wrap: wrap;
        overflow-x: visible;
        scroll-snap-type: none;
        padding: 0 24px 16px;
        gap: 32px;
    }
    
    .content-card {
        min-width: 320px;
        max-width: 380px;
        flex: 1 1 320px; /* Grow and shrink as needed */
        scroll-snap-align: none;
    }
}

/* Extra large screens: more breathing room */
@media (min-width: 1440px) {
    .usecase-card-group {
        max-width: 1400px;
        gap: 40px;
    }
    
    .content-card {
        max-width: 400px;
    }
}

/* Fallback for very small screens */
@media (max-width: 360px) {
    .usecase-card-group {
        padding: 0 16px 16px 16px;
    }
    
    .content-card {
        min-width: 260px;
        max-width: 260px;
    }
}

/* Accessibility and performance optimizations */
@media (prefers-reduced-motion: reduce) {
    .usecase-card-group {
        scroll-behavior: auto;
    }
}

/* Touch device optimizations */
@media (hover: none) and (pointer: coarse) {
    .usecase-card-group {
        scroll-padding-left: 20px; /* Ensures good snap positioning */
        -webkit-overflow-scrolling: touch; /* Smooth iOS scrolling */
    }
}


.content-card {
    width: 320px;
    max-width: 90vw;
    aspect-ratio: 1 / 1.78;
    flex: 0 0 auto;
    scroll-snap-align: start;
    border-radius: 16px;
    box-shadow: 0 1px 2px rgba(60, 64, 67, 0.3), 0 1px 3px 1px rgba(60, 64, 67, 0.15);
    background: #fff;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    transition: all 0.3s ease;
}

@media (max-width: 768px) {
    .content-card {
        width: 90vw;
        min-width: 240px;
        aspect-ratio: 1 / 1.78;
    }
}

/* ...existing code... */
.xr-system-section {
    padding: 80px 0;
    background: #f8f9fa;
}

.xr-system-content {
    text-align: center;
}

.xr-system-image-wrapper {
    margin: 32px auto 0 auto;
    max-width: 900px;
}

.xr-system-image {
    width: 100%;
    max-width: 100%;
    height: auto;
    border-radius: 16px;
    box-shadow: 0 4px 24px rgba(60, 64, 67, 0.10);
}

/* ...existing code... */

.logo-list {
  display: flex;
  justify-content: center;   /* 가운데 정렬 */
  align-items: center;       /* 수직 가운데 */
  flex-wrap: wrap;           /* 화면 작으면 줄바꿈 */
  gap: 2rem;                 /* 아이템 간격 */
  margin-top: 2rem;
}
.logo-item {
  display: flex;
  flex-direction: column;
  align-items: center;
}
.logo-item img {
  max-width: 130px; /* 로고 크기 제한 */
  height: auto;
}
.logo-item span {
  margin-top: 0.5rem;
  font-size: 0.9rem;
  color: #444;
}