/* 60-30-10 색상 법칙 적용 */
:root {
    /* 주요 색상 (60%) */
    --primary-bg: #f8fbff;
    --white: #ffffff;
    
    /* 보조 색상 (30%) */
    --brand-color: #4188fe;
    --brand-light: #6ba3ff;
    --brand-dark: #2968d9;
    --accent-blue: #e8f2ff;
    
    /* 강조 색상 (10%) */
    --text-dark: #2c3e50;
    --text-gray: #6c757d;
    --text-light: #8e9aaf;
    --success: #28a745;
    --warning: #ffc107;
    --danger: #dc3545;
    
    /* 테두리 색상 */
    --border-color: #e9ecef;
    --border-light: #f1f3f4;
    
    /* 그라데이션 */
    --gradient-primary: linear-gradient(135deg, var(--brand-color) 0%, var(--brand-light) 100%);
    --gradient-light: linear-gradient(135deg, var(--primary-bg) 0%, var(--white) 100%);
    
    /* 그림자 */
    --shadow-sm: 0 2px 8px rgba(65, 136, 254, 0.1);
    --shadow-md: 0 4px 16px rgba(65, 136, 254, 0.15);
    --shadow-lg: 0 8px 32px rgba(65, 136, 254, 0.2);
    
    /* 폰트 크기 */
    --font-xs: 0.75rem;
    --font-sm: 0.875rem;
    --font-base: 1rem;
    --font-lg: 1.125rem;
    --font-xl: 1.25rem;
    --font-2xl: 1.5rem;
    --font-3xl: 1.875rem;
    --font-4xl: 2.25rem;
    --font-5xl: 3rem;
    
    /* 간격 */
    --spacing-1: 0.25rem;
    --spacing-2: 0.5rem;
    --spacing-3: 0.75rem;
    --spacing-4: 1rem;
    --spacing-5: 1.25rem;
    --spacing-6: 1.5rem;
    --spacing-8: 2rem;
    --spacing-10: 2.5rem;
    --spacing-12: 3rem;
    --spacing-16: 4rem;
    --spacing-20: 5rem;
    
    /* 컨테이너 */
    --container-max-width: 1200px;
    --container-padding: 1rem;
    
    /* 전환 */
    --transition: all 0.3s ease;
    --transition-fast: all 0.15s ease;
    --transition-slow: all 0.5s ease;
}

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

body {
    font-family: 'Noto Sans KR', sans-serif;
    line-height: 1.6;
    color: var(--text-dark);
    background-color: var(--primary-bg);
    overflow-x: hidden;
}

.container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

/* 헤더 */
.header {
    background: var(--white);
    box-shadow: var(--shadow-sm);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    transition: var(--transition);
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-4) 0;
}

/* 로고 링크 스타일 */
.logo-link {
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
    text-decoration: none;
    color: inherit;
    transition: var(--transition);
}

.logo-link:hover {
    opacity: 0.8;
}

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

.logo-image {
    height: 40px;
    width: auto;
}

.logo-text h1 {
    font-size: var(--font-2xl);
    font-weight: 700;
    color: var(--brand-color);
    margin-bottom: var(--spacing-1);
}

.logo-text span {
    font-size: var(--font-sm);
    color: var(--text-gray);
}

.nav ul {
    display: flex;
    list-style: none;
    gap: var(--spacing-8);
    align-items: center;
}

.nav a {
    text-decoration: none;
    color: var(--text-dark);
    font-weight: 500;
    transition: var(--transition);
    position: relative;
}



.nav a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--brand-color);
    transition: var(--transition);
}

.nav a:hover::after {
    width: 100%;
}

.btn-contact {
    background: var(--gradient-primary);
    color: var(--white) !important;
    padding: var(--spacing-2) var(--spacing-5);
    border-radius: 25px;
    font-weight: 600;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.btn-contact:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-contact::after {
    display: none;
}

/* 모바일 메뉴 토글 버튼 */
.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    position: relative;
    z-index: 1002;
    width: 40px;
    height: 40px;
    border-radius: 6px;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    transition: var(--transition);
}


.mobile-menu-toggle span {
    display: block;
    height: 2px;
    width: 24px;
    background: var(--brand-color);
    margin: 3px 0;
    transition: all 0.3s ease;
    border-radius: 1px;
}

.mobile-menu-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.mobile-menu-toggle.active span:nth-child(2) {
    opacity: 0;
}

.mobile-menu-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -6px);
}



/* 히어로 섹션 */
.hero {
    padding: var(--spacing-20) 0 var(--spacing-16) 0;
    background: var(--gradient-light);
    margin-top: 80px;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    right: -50%;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle, rgba(65, 136, 254, 0.1) 0%, transparent 70%);
    z-index: 1;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-12);
    align-items: center;
    position: relative;
    z-index: 2;
}

.hero-title {
    font-size: var(--font-5xl);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--spacing-6);
    color: var(--text-dark);
}

.highlight {
    color: var(--brand-color);
    position: relative;
}

.highlight::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: var(--brand-color);
    opacity: 0.3;
}

.hero-subtitle {
    font-size: var(--font-xl);
    color: var(--text-gray);
    margin-bottom: var(--spacing-8);
    line-height: 1.5;
}

.hero-features {
    display: flex;
    gap: var(--spacing-6);
    margin-bottom: var(--spacing-10);
}

.feature-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
    font-size: var(--font-sm);
    color: var(--text-gray);
        white-space: nowrap;
}

.feature-item i {
    color: var(--brand-color);
    font-size: var(--font-base);
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-4);
}

.hero-image {
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero-card {
    background: var(--white);
    border-radius: 20px;
    padding: var(--spacing-8);
    box-shadow: var(--shadow-lg);
    transform: rotate(5deg);
    transition: var(--transition);
}

.hero-card:hover {
    transform: rotate(0deg) scale(1.05);
}

.hero-card h3 {
    font-size: var(--font-xl);
    margin-bottom: var(--spacing-4);
    color: var(--text-dark);
}

.hero-card ul {
    list-style: none;
}

.hero-card li {
    padding: var(--spacing-2) 0;
    font-size: var(--font-base);
    color: var(--text-gray);
}

/* 섹션 공통 스타일 */
.section-title {
    text-align: center;
    font-size: var(--font-4xl);
    font-weight: 700;
    margin-bottom: var(--spacing-6);
    color: var(--text-dark);
}

.section-subtitle {
    text-align: center;
    font-size: var(--font-lg);
    color: var(--text-gray);
    margin-bottom: var(--spacing-12);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* 협력사 로고 섹션 */
.partners {
    padding: var(--spacing-20) 0;
    background: var(--white);
    overflow: hidden;
}

.partners-scrolling {
    margin-top: var(--spacing-12);
    position: relative;
    width: 100vw;
    margin-left: calc(-50vw + 50%);
}

.scroll-row {
    display: flex;
    margin-bottom: var(--spacing-8);
    width: 100%;
}

.scroll-row:last-child {
    margin-bottom: 0;
}

.scroll-content {
    display: flex;
    gap: var(--spacing-1);
    animation: scroll-left 40s linear infinite;
    white-space: nowrap;
    margin-right: var(--spacing-1);
}

.scroll-row.reverse .scroll-content {
    animation: scroll-right 40s linear infinite;
    margin-right: var(--spacing-1);
}

.partner-logo {
    flex-shrink: 0;
    width: 200px;
    height: 90px;
    background: var(--white);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
    margin: 0 var(--spacing-4);
}



.partner-logo img {
    max-width: 120px;
    max-height: 50px;
    object-fit: contain;
    filter: grayscale(100%);
    transition: var(--transition);
}

/* 스크롤 애니메이션 */
@keyframes scroll-left {
    0% {
        transform: translateX(0);
    }
    100% {
        transform: translateX(-50%);
    }
}

@keyframes scroll-right {
    0% {
        transform: translateX(-50%);
    }
    100% {
        transform: translateX(0);
    }
}


/* 프로세스 섹션 */
.process {
    padding: var(--spacing-20) 0;
    background: var(--white);
}

.step {
    /* 공통 카드 및 아이콘 스타일은 위에서 정의됨 */
    text-align: center;
    padding: var(--spacing-6);
    background: var(--primary-bg);
    position: relative;
    margin: 10px 0;
}

.step-icon {
    /* 공통 아이콘 스타일은 위에서 정의됨 */
    margin: 0 auto var(--spacing-4);
}

.step h3 {
    font-size: var(--font-xl);
    font-weight: 600;
    margin-bottom: var(--spacing-3);
    color: var(--text-dark);
}

.step p {
    font-size: var(--font-sm);
    color: var(--text-gray);
    line-height: 1.5;
}

/* 체험 섹션 */
.experience {
    padding: var(--spacing-20) 0;
    background: var(--primary-bg);
}

.phone-mockups {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-8);
    margin-top: var(--spacing-12);
}

.phone-mockup {
    display: flex;
    justify-content: center;
}


.phone-frame {
    width: 330px;
    height: 660px;
    background: var(--text-dark);
    border-radius: 30px;
    padding: var(--spacing-4);
    position: relative;
    box-shadow: var(--shadow-lg);
    cursor: pointer;
    transition: var(--transition);
}

.phone-frame::before {
    content: '';
    position: absolute;
    top: var(--spacing-2);
    left: 50%;
    transform: translateX(-50%);
    width: 120px;
    height: 6px;
    background: var(--text-gray);
    border-radius: 3px;
    z-index: 5;
}

.phone-frame::after {
    content: '👆 광고 체험하기';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    border-radius: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: var(--font-xl);
    font-weight: 600;
    z-index: 10;
    opacity: 1;
    visibility: visible;
    transition: all 0.3s ease;
    backdrop-filter: blur(8px);
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.5);
}

.phone-frame.clicked::after {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
}

.phone-frame iframe {
    pointer-events: none;
    transition: var(--transition);
    width: 100%;
    height: 630px;
    border: none;
    border-radius: 12px;
    
}

.phone-frame.clicked iframe {
    pointer-events: auto;
}

.phone-screen {
    width: 100%;
    height: 100%;
    border-radius: 25px;
    display: flex;
    flex-direction: column;
}

.ad-preview h4 {
    font-size: var(--font-base);
    font-weight: 600;
    margin-top: var(--spacing-5);
    color: var(--text-dark);
    text-align: center;
}

.ad-content {
    flex: 1;
    background: var(--accent-blue);
    border-radius: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--brand-color);
    font-size: var(--font-sm);
}

/* 비교 섹션 */
.comparison {
    padding: var(--spacing-20) 0;
    background: var(--white);
}

.comparison-chart {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: var(--spacing-10);
    margin-top: var(--spacing-12);
}

.chart-item {
    background: var(--primary-bg);
    border-radius: 15px;
    padding: var(--spacing-8);
    box-shadow: var(--shadow-sm);
}

.chart-item h3 {
    font-size: var(--font-xl);
    font-weight: 600;
    margin-bottom: var(--spacing-6);
    color: var(--text-dark);
    text-align: center;
}

.chart-bar {
    height: 60px;
    background: var(--white);
    border-radius: 30px;
    display: flex;
    overflow: hidden;
    margin-bottom: var(--spacing-4);
    box-shadow: var(--shadow-sm);
}

.bar-segment {
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: var(--font-sm);
    font-weight: 600;
    position: relative;
    transition: var(--transition);
    width: 0%;
}
.bar-segment span {
    white-space: nowrap;
    opacity: 0;
}

.bar-segment.external {
    background: var(--danger);
}

.bar-segment.margin {
    background: var(--warning);
}

.bar-segment.actual {
    background: var(--text-gray);
}

.bar-segment.actual.primary {
    background: var(--brand-color);
}

.bar-segment.management {
    background: var(--brand-light);
}

.chart-note {
    font-size: var(--font-sm);
    width: 100%;
    max-width: 260px;
    white-space: nowrap;
    margin: var(--spacing-4) auto;
    font-weight: 500;
}

.chart-note p {
    margin: var(--spacing-2) 0;
    line-height: 1.4;
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.4s ease-in-out;
}

.chart-note p.animated {
    opacity: 1;
    transform: translateY(0);
}

.comparison-summary {
    margin-top: var(--spacing-8);
    text-align: center;
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.6s ease-in-out;
}

.comparison-summary.animated {
    opacity: 1;
    transform: translateY(0);
}

.summary-subtitle {
    font-size: var(--font-xl);
    font-weight: 700;
    color: var(--brand-color);
    margin-bottom: var(--spacing-4);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.comparison-summary p {
    font-size: var(--font-lg);
    font-weight: 600;
    color: var(--text-dark);
    line-height: 1.6;
    background: linear-gradient(135deg, var(--accent-blue) 0%, rgba(255, 255, 255, 0.8) 100%);
    padding: var(--spacing-6);
    border-radius: 12px;
    box-shadow: var(--shadow-sm);
}

.comparison-summary strong {
    color: var(--brand-color);
    font-size: var(--font-xl);
}

/* 차별화 섹션 */
.differentiation {
    padding: var(--spacing-20) 0;
    background: var(--primary-bg);
}


.diff-item {
    /* 공통 카드 스타일은 위에서 정의됨 */
    padding: var(--spacing-8);
}

.diff-icon {
    /* 공통 아이콘 스타일은 위에서 정의됨 */
    margin-bottom: var(--spacing-4);
}

.diff-item h3 {
    font-size: var(--font-xl);
    font-weight: 600;
    margin-bottom: var(--spacing-4);
    color: var(--text-dark);
}

.diff-item p {
    color: var(--text-gray);
    line-height: 1.6;
    margin-bottom: var(--spacing-4);
}

.strategy-comparison {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-4);
    margin-top: var(--spacing-4);
}

.strategy-item {
    padding: var(--spacing-4);
    border-radius: 10px;
    background: var(--primary-bg);
    text-align: center;
}

.strategy-item.highlight-bg {
    background: var(--accent-blue);
    border: 2px solid var(--brand-color);
}

.strategy-item h4 {
    font-size: var(--font-base);
    font-weight: 600;
    margin-bottom: var(--spacing-2);
    color: var(--text-dark);
}

.strategy-item p {
    font-size: var(--font-sm);
    color: var(--text-gray);
    margin: 0;
}

/* 차별화 슬라이드 */
.diff-slides {
    margin-top: var(--spacing-16);
}

.slide-container {
    position: relative;
    width: 100%;
    height: 600px;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: all 0.8s ease-in-out;
    transform: translateX(100%);
}

.slide.active {
    opacity: 1;
    transform: translateX(0);
}

.slide.prev {
    transform: translateX(-100%);
}

.slide-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.slide-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(transparent, rgba(0,0,0,0.7));
    padding: var(--spacing-8) var(--spacing-6);
    color: var(--white);
}

.slide-overlay h4 {
    font-size: var(--font-2xl);
    font-weight: 700;
    margin-bottom: var(--spacing-3);
}

.slide-overlay p {
    font-size: var(--font-base);
    line-height: 1.6;
    margin: 0;
}

.slide-indicators {
    display: flex;
    justify-content: center;
    gap: var(--spacing-3);
    margin-top: var(--spacing-6);
}

.indicator {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    border: 2px solid var(--brand-color);
    background: transparent;
    cursor: pointer;
    transition: var(--transition);
}

.indicator.active {
    background: var(--brand-color);
}

.indicator:hover {
    background: var(--brand-color);
    transform: scale(1.2);
}

/* 차별화 아이템 포커스 효과 */
.diff-item.focused {
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(65, 136, 254, 0.15);
    border: 2px solid var(--brand-color);
}

.diff-item.focused .diff-icon {
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% { transform: scale(1); }
    50% { transform: scale(1.05); }
    100% { transform: scale(1); }
}

/* 사례 섹션 */
.cases {
    padding: var(--spacing-20) 0;
    background: var(--white);
    overflow: hidden;
}

.cases-slider {
    position: relative;
    margin-top: var(--spacing-12);
    height: 600px;
    perspective: 1000px;
}

.cases-wrapper {
    position: relative;
    width: 100%;
    height: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
    transform-style: preserve-3d;
}

.case-card {
    position: absolute;
    width: 450px;

    background: var(--white);
    border-radius: 20px;
    box-shadow: var(--shadow-lg);
    transition: all 0.6s cubic-bezier(0.4, 0, 0.2, 1);
    transform-style: preserve-3d;
    cursor: pointer;
    overflow: hidden;
}

.case-card:hover {
    box-shadow: 0 20px 40px rgba(65, 136, 254, 0.3);
}

.case-card:hover {
    box-shadow: 0 20px 40px rgba(65, 136, 254, 0.3);
}

.case-image {
    width: 100%;
    height: 200px;
    overflow: hidden;
    border-radius: 20px 20px 0 0;
    background: var(--accent-blue);
    display: flex;
    align-items: center;
    justify-content: center;
}

.case-image img {
    width: 80%;
    height: 80%;
    object-fit: contain;
    filter: drop-shadow(0 4px 8px rgba(65, 136, 254, 0.2));
}

.case-content {
    padding: var(--spacing-8);
    height: calc(100% - 200px);
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.case-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-6);
}

.case-header h3 {
    font-size: var(--font-xl);
    font-weight: 700;
    color: var(--text-dark);
}

.case-type {
    background: var(--brand-color);
    color: var(--white);
    padding: var(--spacing-2) var(--spacing-4);
    border-radius: 20px;
    font-size: var(--font-xs);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.case-info {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-3);
    margin-bottom: var(--spacing-6);
}

.case-detail {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-2) 0;
    border-bottom: 1px solid var(--accent-blue);
}

.detail-label {
    font-size: var(--font-sm);
    color: var(--text-gray);
    font-weight: 500;
}

.detail-value {
    font-size: var(--font-sm);
    color: var(--text-dark);
    font-weight: 600;
}

.case-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-4);
}

.stat {
    text-align: center;
    padding: var(--spacing-4);
    background: var(--primary-bg);
    border-radius: 15px;
    border: 2px solid var(--accent-blue);
    transition: var(--transition);
}

.stat:hover {
    border-color: var(--brand-color);
    background: var(--white);
}

.stat-label {
    font-size: var(--font-xs);
    color: var(--text-gray);
    font-weight: 500;
    margin-bottom: var(--spacing-2);
    display: block;
}

.stat-value {
    font-size: var(--font-lg);
    color: var(--brand-color);
    font-weight: 700;
    display: block;
}

.cases-navigation {
    display: flex;
    justify-content: center;
    align-items: center;
    margin-top: 20px;
    gap: 200px;
}

.nav-btn {
    width: 50px;
    height: 50px;
    border: none;
    border-radius: 50%;
    background: var(--brand-color);
    color: var(--white);
    font-size: var(--font-lg);
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
}

.nav-btn:hover {
    background: var(--brand-dark);
    transform: scale(1.1);
}

.nav-btn:disabled {
    background: var(--text-light);
    cursor: not-allowed;
    transform: none;
}

/* CTA 섹션 */
.cta {
    padding: var(--spacing-20) 0;
    background: var(--gradient-primary);
    text-align: center;
}

.cta-content h2 {
    font-size: var(--font-4xl);
    font-weight: 700;
    color: var(--white);
    margin-bottom: var(--spacing-4);
}

.cta-content p {
    font-size: var(--font-lg);
    color: var(--white);
    opacity: 0.9;
    margin-bottom: var(--spacing-8);
}

.cta-buttons {
    display: flex;
    justify-content: center;
    gap: var(--spacing-4);
}

.cta .btn-primary {
    background: var(--white);
    color: var(--brand-color);
    box-shadow: var(--shadow-md);
}

.cta .btn-primary:hover {
    background: var(--primary-bg);
    transform: translateY(-3px);
}

.cta .btn-secondary {
    background: transparent;
    color: var(--white);
    border: 2px solid var(--white);
}

.cta .btn-secondary:hover {
    background: var(--white);
    color: var(--brand-color);
}

/* 푸터 */
.footer {
    background: var(--text-dark);
    color: var(--white);
    padding: var(--spacing-16) 0 var(--spacing-8) 0;
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-12);
    margin-bottom: var(--spacing-8);
}

.footer-info .footer-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-3);
    margin-bottom: var(--spacing-6);
}

.footer-logo-image {
    height: 75px;
    width: auto;
    filter: brightness(0) invert(1);
}

.footer-info h3 {
    font-size: var(--font-2xl);
    font-weight: 700;
    color: var(--brand-color);
    margin: 0;
}

.company-info p {
    margin-bottom: var(--spacing-2);
    color: var(--text-light);
    font-size: var(--font-sm);
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: var(--spacing-8);
}

.link-group h4 {
    font-size: var(--font-lg);
    font-weight: 600;
    margin-bottom: var(--spacing-4);
    color: var(--white);
}

.link-group ul {
    list-style: none;
}

.link-group li {
    margin-bottom: var(--spacing-2);
}

.link-group a {
    color: var(--text-light);
    text-decoration: none;
    font-size: var(--font-sm);
    transition: var(--transition);
}

.link-group a:hover {
    color: var(--brand-color);
}

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-8);
    border-top: 1px solid #444;
    color: var(--text-light);
    font-size: var(--font-sm);
}

/* 활성 메뉴 스타일 */
.nav a.active {
    color: var(--brand-color);
}

.nav a.active::after {
    width: 100%;
}

@media (max-width: 768px) {
    /* 네비게이션 */
    .mobile-menu-toggle {
        display: flex;
    }
    
    .nav {
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background: rgba(0, 0, 0, 0.227);
        backdrop-filter: blur(10px);
        transform: translateX(100%);
        opacity: 0;
        visibility: hidden;
        transition: all 0.3s ease;
        z-index: 999;
        display: flex;
        align-items: center;
        justify-content: center;
    }
    
    .nav.active {
        transform: translateX(0) !important;
        opacity: 1 !important;
        visibility: visible !important;
    }
    
    .nav ul {
        flex-direction: column;
        gap: var(--spacing-6);
        padding: var(--spacing-8);
        list-style: none;
        margin: 0;
        text-align: center;
        width: 100%;
        max-width: 400px;
    }
    
    .nav li {
        transform: translateY(20px);
        opacity: 0;
        transition: all 0.3s ease;
        width: 100%;
    }
    
    .nav.active li {
        transform: translateY(0) !important;
        opacity: 1 !important;
    }
    
    .nav.active li:nth-child(1) { transition-delay: 0.1s; }
    .nav.active li:nth-child(2) { transition-delay: 0.2s; }
    .nav.active li:nth-child(3) { transition-delay: 0.3s; }
    .nav.active li:nth-child(4) { transition-delay: 0.4s; }
    .nav.active li:nth-child(5) { transition-delay: 0.5s; }
    .nav.active li:nth-child(6) { transition-delay: 0.6s; }
    .nav.active li:nth-child(7) { transition-delay: 0.7s; }
    .nav.active li:nth-child(8) { transition-delay: 0.8s; }
    
    .nav a {
        display: block;
        padding: var(--spacing-4) var(--spacing-6);
        font-size: var(--font-2xl);
        font-weight: 500;
        color: var(--white);
        text-decoration: none;
        border-radius: 12px;
        transition: all 0.3s ease;
        position: relative;
        overflow: hidden;
        width: 100%;
        text-align: center;
        text-shadow: 0 0 4px rgba(0, 0, 0, 0.8);
    }
    
    .nav a::before {
        content: '';
        position: absolute;
        top: 0;
        left: -100%;
        width: 100%;
        height: 100%;
        background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.1), transparent);
        transition: left 0.5s ease;
    }
    
    .nav a:hover::before {
        left: 100%;
    }
    
    .nav a:hover {
        background: rgba(255, 255, 255, 0.1);
        transform: translateY(-2px);
        box-shadow: 0 8px 25px rgba(65, 136, 254, 0.3);
    }
    
    .nav a.active {
        background: var(--brand-color);
        color: var(--white);
        box-shadow: 0 4px 15px rgba(65, 136, 254, 0.4);
    }
    
    .btn-contact {
        background: var(--gradient-primary) !important;
        color: var(--white) !important;
        border-radius: 25px !important;
        padding: var(--spacing-4) var(--spacing-8) !important;
        font-weight: 600 !important;
        box-shadow: 0 4px 15px rgba(65, 136, 254, 0.4) !important;
        border: 2px solid var(--brand-color) !important;
    }
    
    .btn-contact:hover {
        background: var(--brand-dark) !important;
        transform: translateY(-3px) !important;
        box-shadow: 0 8px 25px rgba(65, 136, 254, 0.5) !important;
    }
    
    /* 모바일 메뉴 오버레이 */
    .nav::before {
        content: '';
        position: absolute;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background: radial-gradient(circle at center, rgba(0, 0, 0, 0.1) 0%, transparent 70%);
        z-index: -1;
    }

    /* 레이아웃 */
    .hero-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-8);
    }
    
    .hero-image {
        order: -1;
    }
    
    .hero-buttons {
        gap: var(--spacing-4);
    }
    
    .hero-features {
        grid-template-columns: 1fr;
    }
    
    .hero-card {
        display: none;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-8);
    }
    

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

    /* 슬라이더 */
    .cases-slider {
        height: 500px;
    }
    
    .case-card {
        width: 350px;
        height: 450px;
    }
    
    .case-image {
        height: 150px;
    }
    
    .case-content {
        padding: var(--spacing-6);
        height: calc(100% - 150px);
    }
    
    .case-header h3 {
        font-size: var(--font-lg);
    }
    
    .case-stats {
        grid-template-columns: repeat(3, 1fr);
        gap: var(--spacing-2);
    }
    
    .stat {
        padding: var(--spacing-2);
    }
    
    .stat-label {
        font-size: 10px;
    }
    
    .stat-value {
        font-size: var(--font-sm);
    }
    
    .nav-btn {
        width: 40px;
        height: 40px;
        font-size: var(--font-base);
    }
}

@media (max-width: 480px) {
    

    .nav {
        padding: var(--spacing-8);
        flex-direction: column;
        align-items: center;
        gap: var(--spacing-6);

    }
    .nav a {
        padding: var(--spacing-4) var(--spacing-8);
        border-radius: 12px;
        transition: background 0.3s ease;
        font-size: var(--font-lg);
    }
    .nav ul {
        flex-direction: column;
        align-items: center;
        gap: var(--spacing-4);
    }

    .cta-buttons {
        flex-direction: column;
        gap: var(--spacing-2);
    }
    
    .cases-slider {
        height: 450px;
    }
    
    .case-card {
        width: 300px;
    }
    
    .case-image {
        height: 120px;
    }
    
    .case-content {
        padding: var(--spacing-4);
        height: calc(100% - 120px);
    }
    
    .case-stats {
        grid-template-columns: repeat(3, 1fr);
        gap: var(--spacing-1);
    }
    
    .stat {
        padding: var(--spacing-1);
    }
    
    .stat-label {
        font-size: 8px;
    }
    
    .stat-value {
        font-size: var(--font-xs);
    }

    /* 비교 섹션 */
    .comparison-summary strong {
        font-size: var(--font-lg);
    }
    
    .comparison-summary p {
        font-size: var(--font-base);
    }
    
    .comparison-chart {
        grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    }
    
    .chart-bar {
        width: 100%;
        height: 30px;
        margin-bottom: var(--spacing-2);
    }
    
    .chart-item {
        padding: var(--spacing-4);
        border-radius: 10px;
        box-shadow: var(--shadow-sm);
    }
    
    .bar-segment {
        font-size: var(--font-xs);
        font-weight: 500;
    }

    /* 슬라이드 */
    .slide-container {
        height: 200px;
    }
    
    .slide-overlay {
        padding: var(--spacing-4) var(--spacing-3);
    }
    
    .slide-overlay h4 {
        font-size: var(--font-lg);
    }
    
    .slide-overlay p {
        font-size: var(--font-sm);
    }

    /* 히어로 및 레이아웃 */
    .hero-content {
        grid-template-columns: 1fr;
    }
    
    .hero-features {
        gap: var(--spacing-3);
        flex-direction: column;
    }
    
    .hero-card {
        display: none;
    }
    
    .partner-logo img {
        width: 50px;
    }
    
    .partner-logo {
        width: 100px;
        height: 80px;
    }

    /* 버튼 */
    .btn-primary,
    .btn-secondary {
        width: 100%;
        font-size: var(--font-sm);
        white-space: nowrap;
        text-align: center;
    }

    /* 푸터 */
    .footer-links {
        grid-template-columns: 1fr 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        justify-content: center;
        align-items: center;
        padding: var(--spacing-4);
    }
    
    .footer-info .footer-logo {
        flex-direction: column;
        align-items: center;
    }
    
    /* 터치 최적화 */
    .btn-primary,
    .btn-secondary,
    .btn-submit,
    .btn-inquiry,
    .btn-contact {
        min-height: 44px;
        touch-action: manipulation;
        -webkit-tap-highlight-color: rgba(0, 0, 0, 0);
    }
    
    .btn-primary:active,
    .btn-secondary:active,
    .btn-submit:active,
    .btn-inquiry:active,
    .btn-contact:active {
        transform: scale(0.95);
        transition: transform 0.1s ease;
    }
    
    .step:hover,
    .diff-item:hover,
    .info-item:hover {
        transform: none;
        box-shadow: var(--shadow-sm);
    }
    
    .step:active,
    .diff-item:active,
    .info-item:active {
        transform: scale(0.98);
        transition: transform 0.1s ease;
    }
    
    .nav-btn {
        min-height: 44px;
        min-width: 44px;
        touch-action: manipulation;
    }
    
    .nav-btn:active {
        transform: scale(0.9);
        transition: transform 0.1s ease;
    }
    
    .indicator {
        min-width: 44px;
        min-height: 44px;
        display: flex;
        align-items: center;
        justify-content: center;
        touch-action: manipulation;
    }
    
    .indicator::before {
        content: '';
        width: 12px;
        height: 12px;
        border-radius: 50%;
        border: 2px solid var(--brand-color);
        background: transparent;
        transition: var(--transition);
    }
    
    .indicator.active::before {
        background: var(--brand-color);
    }
    
    /* 성능 최적화 */
    .hero-card,
    .step,
    .diff-item,
    .case-card,
    .info-item {
        -webkit-transform: translateZ(0);
        transform: translateZ(0);
        -webkit-backface-visibility: hidden;
        backface-visibility: hidden;
        will-change: transform;
    }
    
    .scroll-content {
        -webkit-transform: translateZ(0);
        transform: translateZ(0);
        will-change: transform;
    }
    
    body {
        -webkit-font-smoothing: antialiased;
        -moz-osx-font-smoothing: grayscale;
        text-rendering: optimizeLegibility;
    }
    
    .logo-image,
    .partner-logo img,
    .case-image img {
        image-rendering: -webkit-optimize-contrast;
        image-rendering: optimize-contrast;
    }
    
    .nav {
        -webkit-overflow-scrolling: touch;
        overscroll-behavior: contain;
    }
    
    .header {
        padding-top: env(safe-area-inset-top);
    }
    
    .footer {
        padding-bottom: env(safe-area-inset-bottom);
    }
    
    .cases-slider,
    .diff-slides {
        touch-action: pan-y;
    }
    
    .form-group input:focus,
    .form-group textarea:focus {
        scroll-margin-top: 100px;
    }
    
    /* 가독성 향상 */
    .hero-title {
        word-break: keep-all;
        line-height: 1.3;
        font-size: var(--font-5xl);
    }
    
    .hero-subtitle {
        word-break: keep-all;
        line-height: 1.5;
        font-size: var(--font-base);
    }
    
    .section-title,
    .cta-content h2 {
        word-break: keep-all;
        line-height: 1.3;
        font-size: var(--font-xl);
        font-weight: 700;
    }
    
    .section-subtitle {
        word-break: keep-all;
        line-height: 1.5;
        font-size: var(--font-base);
    }
    
    .loading-spinner {
        animation: spin 1s linear infinite;
        will-change: transform;
    }
    
    .mobile-menu-toggle {
        -webkit-tap-highlight-color: rgba(0, 0, 0, 0);
    }
    
    .container {
        scroll-padding-top: 80px;
    }
}

/* 공통 버튼 스타일 통합 */
.btn-primary,
.btn-secondary,
.btn-submit,
.btn-inquiry,
.btn-contact {
    border: none;
    cursor: pointer;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-2);
    text-decoration: none;
    font-weight: 600;
    font-size: var(--font-base);
    border-radius: 30px;
    padding: var(--spacing-4) var(--spacing-8);
}

.btn-primary,
.btn-submit,
.btn-inquiry {
    background: var(--gradient-primary);
    color: var(--white);
    box-shadow: var(--shadow-md);
}

.btn-primary:hover,
.btn-submit:hover,
.btn-inquiry:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

.btn-secondary {
    background: var(--white);
    color: var(--brand-color);
    border: 2px solid var(--brand-color);
}

.btn-secondary:hover {
    background: var(--brand-color);
    color: var(--white);
    transform: translateY(-2px);
}

.btn-submit:disabled,
.btn-inquiry:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

/* 공통 카드 스타일 통합 */
.hero-card,
.case-card,
.step,
.diff-item {
    background: var(--white);
    border-radius: 15px;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.hero-card:hover,
.case-card:hover,
.step:hover,
.diff-item:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
}

/* 공통 아이콘 스타일 통합 */
.step-icon,
.diff-icon {
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    background: var(--gradient-primary);
    box-shadow: var(--shadow-sm);
}

.step-icon {
    width: 80px;
    height: 80px;
    font-size: var(--font-2xl);
}

.diff-icon {
    width: 60px;
    height: 60px;
    font-size: var(--font-xl);
}

/* 공통 그리드 스타일 통합 */
.process-steps,
.diff-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-8);
    margin-top: var(--spacing-12);
}

.diff-content {
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

/* 간편 문의 양식 스타일 */
.inquiry-form .form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-4);
    margin-bottom: var(--spacing-4);
}

.inquiry-form .form-row .form-group {
    margin-bottom: 0;
}

.inquiry-form .form-group {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-2);
    margin-bottom: var(--spacing-4);
}

.inquiry-form .form-group label {
    font-weight: 500;
    color: var(--text-dark);
    font-size: var(--font-sm);
}

.inquiry-form .form-group input,
.inquiry-form .form-group select {
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: var(--spacing-3);
    font-size: var(--font-base);
    transition: var(--transition);
    background: var(--white);
    color: var(--text-dark);
}

.inquiry-form .form-group input:focus,
.inquiry-form .form-group select:focus {
    outline: none;
    border-color: var(--brand-color);
    box-shadow: 0 0 0 3px rgba(65, 136, 254, 0.1);
}

.inquiry-form .checkbox-group {
    flex-direction: row;
    align-items: center;
    gap: var(--spacing-3);
}

.inquiry-form .checkbox-label {
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
    cursor: pointer;
    font-size: var(--font-sm);
}

.inquiry-form .checkbox-label input[type="checkbox"] {
    display: none;
}

.inquiry-form .checkmark {
    width: 20px;
    height: 20px;
    background: var(--white);
    border: 2px solid #e9ecef;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.inquiry-form .checkbox-label input[type="checkbox"]:checked + .checkmark {
    background: var(--brand-color);
    border-color: var(--brand-color);
}

.inquiry-form .checkbox-label input[type="checkbox"]:checked + .checkmark::after {
    content: '\f00c';
    font-family: 'Font Awesome 5 Free';
    font-weight: 900;
    color: var(--white);
    font-size: var(--font-xs);
}

/* 확인 모달 스타일 */
.confirmation-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 10000;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

.confirmation-modal.active {
    opacity: 1;
    visibility: visible;
}

.modal-content {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    max-width: 400px;
    width: 90%;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
    text-align: center;
    transform: scale(0.9);
    transition: transform 0.3s ease;
}

.confirmation-modal.active .modal-content {
    transform: scale(1);
}

.modal-header {
    margin-bottom: 1.5rem;
}

.modal-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 0.5rem;
}

.modal-info {
    margin-bottom: 1.5rem;
}

.info-item {
    margin-bottom: 0.75rem;
    padding: 0.5rem 0;
    border-bottom: 1px solid var(--border-light);
}

.info-item:last-child {
    border-bottom: none;
}

.info-label {
    display: inline-block;
    font-weight: 500;
    color: var(--text-gray);
    margin-right: 0.5rem;
}

.info-value {
    font-weight: 600;
    color: var(--text-dark);
}

.modal-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    margin-top: 1rem;
}

.modal-btn {
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 8px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    min-width: 100px;
}

.modal-btn-confirm {
    background: var(--brand-color);
    color: white;
}

.modal-btn-confirm:hover {
    background: var(--brand-dark);
}

.modal-btn-cancel {
    background: var(--border-color);
    color: var(--text-dark);
}

.modal-btn-cancel:hover {
    background: var(--text-light);
    color: var(--white);
}

.modal-notice {
    font-size: 0.875rem;
    color: var(--text-gray);
    margin-top: 1rem;
    padding: 0.75rem;
    background: var(--accent-blue);
    border-radius: 6px;
}

@media (max-width: 480px) {
    .phone-frame iframe {
        width: 100%;
        height: 470px;
    }

    .modal-content {
        padding: 1.5rem;
        margin: 1rem;
    }
    

    
    .modal-btn {
        width: 100%;
    }
    .inquiry-form .form-row {
        grid-template-columns: 1fr;
    }
    .process-steps, .diff-content {
        grid-template-columns: 1fr;
        gap : var(--spacing-4);
    }
    .step h3 {
        font-size: var(--font-lg);
    }
    .step p {
        font-size: var(--font-xs);
    }
    .step-icon {
        font-size: var(--font-lg);
        width: 60px;
        height: 60px;
    }
    .step {
        padding: var(--spacing-4);
        margin: 0;
    }

    /* 폰 프레임 모바일 스타일 */
    .phone-frame {
        width: 310px;
        height: 500px;
    }
    
    .phone-frame::after {
        font-size: var(--font-lg);
        backdrop-filter: blur(6px);
    }

}