:root {
    --primary-color: #6096B4;
    --secondary-color: #93BFCF;
    --accent-color: #3088b9;
    --text-dark: #1a1a1a;
    --text-light: #666;
    --text-white: #fff;
    --bg-light: #f8fafc;
    --bg-primary: #BDCDD6;
    --bg-secondary: #EEE9DA;
    --border-color: #e2e8f0;
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-hover: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --shadow-primary: 0 4px 15px rgba(96, 150, 180, 0.4);
    --radius: 16px;
    --radius-small: 12px;
    --radius-large: 24px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);

    /* 모던 컬러 추가 */
    --success-color: #10b981;
    --warning-color: #f59e0b;
    --error-color: #ef4444;
    --info-color: #3b82f6;
    --glass-bg: rgba(255, 255, 255, 0.7);
    --glass-border: rgba(255, 255, 255, 0.2);
}

/* 반응형 */
@media (max-width: 768px) {
    .hero-title {
        font-size: 2.5rem;
    }

    .section-title {
        font-size: 2rem;
    }

    .download-buttons {
        flex-direction: column;
    }

    .download-stats {
        justify-content: center;
    }

    .step-item {
        flex-direction: column !important;
        text-align: center;
    }

    .step-item:nth-child(even) {
        flex-direction: column !important;
    }

    .step-content::before {
        display: none;
    }

    .step-number-wrapper {
        margin: 0 0 2rem 0;
    }

    .phone-mockup {
        transform: none;
        max-width: 250px;
    }

    .modal-body {
        padding: 1rem;
    }

    .support-card {
        margin-bottom: 1rem;
    }
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    line-height: 1.6;
    color: var(--text-dark);
    overflow-x: hidden;
}

/* 글래스모피즘 효과 */
.glass {
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
}

/* 네비게이션 - 플로팅 스타일 */
.navbar {
    background: var(--glass-bg) !important;
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--glass-border);
    padding: 1.2rem 0;
    transition: var(--transition);
}

.navbar-brand {
    font-size: 1.75rem;
    font-weight: 800;
    color: var(--primary-color) !important;
    display: flex;
    align-items: center;
}

.navbar-brand i {
    background: var(--primary-color);
    color: white;
    width: 40px;
    height: 40px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 12px;
}

.navbar-nav .nav-link {
    color: var(--text-dark) !important;
    font-weight: 500;
    margin: 0 0.8rem;
    transition: var(--transition);
    position: relative;
    padding: 8px 16px !important;
    border-radius: 8px;
}

.navbar-nav .nav-link:hover {
    color: var(--primary-color) !important;
    background: rgba(96, 150, 180, 0.1);
}
.hero-section {
    background: var(--bg-light);
    padding: 120px 0 80px;
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: 0;
    right: -200px;
    width: 400px;
    height: 400px;
    background: var(--bg-primary);
    border-radius: 50%;
    opacity: 0.1;
    z-index: 0;
}

.hero-section::after {
    content: '';
    position: absolute;
    bottom: -150px;
    left: -150px;
    width: 300px;
    height: 300px;
    background: var(--secondary-color);
    border-radius: 50%;
    opacity: 0.1;
    z-index: 0;
}

.hero-content {
    position: relative;
    z-index: 2;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    padding: 8px 20px;
    border-radius: 50px;
    font-size: 0.9rem;
    font-weight: 500;
    margin-bottom: 2rem;
    color: var(--primary-color);
}

.hero-badge i {
    margin-right: 8px;
    color: var(--success-color);
}

.hero-title {
    font-size: 4rem;
    font-weight: 800;
    color: var(--text-dark);
    margin-bottom: 1.5rem;
    line-height: 1.1;
}

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

.hero-subtitle {
    font-size: 1.3rem;
    color: var(--text-light);
    margin-bottom: 3rem;
    line-height: 1.6;
}
.download-section {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.download-buttons {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.download-btn {
    display: flex;
    align-items: center;
    padding: 16px 32px;
    border-radius: var(--radius);
    text-decoration: none;
    font-weight: 600;
    font-size: 1.1rem;
    transition: var(--transition);
    min-width: 200px;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.download-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
    transition: left 0.6s;
}

.download-btn:hover::before {
    left: 100%;
}

.download-btn.android {
    background: var(--primary-color);
    color: white;
    box-shadow: 0 8px 30px rgba(96, 150, 180, 0.3);
}

.download-btn.ios {
    background: var(--text-dark);
    color: white;
    box-shadow: 0 8px 30px rgba(26, 26, 26, 0.3);
}

.download-btn:hover {
    transform: translateY(-4px);
    box-shadow: 0 20px 40px rgba(96, 150, 180, 0.4);
    color: white !important;
}

.download-btn i {
    font-size: 1.8rem;
    margin-right: 12px;
}



.app-showcase {
    position: relative;
    z-index: 2;
}

.phone-mockup {
    position: relative;
    max-width: 300px;
    margin: 0 auto;
    transform: perspective(1000px) rotateY(-15deg) rotateX(2deg);
    transition: transform 0.6s ease;
}

.phone-mockup:hover {
    transform: perspective(1000px) rotateY(-5deg) rotateX(0deg) scale(1.05);
}

.phone-frame {
    background: #2a2a2a;
    border-radius: 40px;
    padding: 20px;
    box-shadow:
            0 50px 100px rgba(0, 0, 0, 0.3),
            0 20px 60px rgba(0, 0, 0, 0.2),
            inset 0 0 0 1px rgba(255, 255, 255, 0.1);
}

.phone-screen {
    border-radius: 30px;
    overflow: hidden;
    background: #000;
    aspect-ratio: 9/16;
    position: relative;
}

.phone-screen img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}





/* 섹션 스타일 개선 */
.section {
    padding: 100px 0;
    position: relative;
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-badge {
    display: inline-block;
    background: var(--primary-color);
    color: white;
    padding: 8px 24px;
    border-radius: 50px;
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
}

.section-title {
    font-size: 3rem;
    font-weight: 800;
    color: var(--text-dark);
    margin-bottom: 1.5rem;
    line-height: 1.2;
}

.section-subtitle {
    font-size: 1.2rem;
    color: var(--text-light);
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.6;
}

/* 특징 카드 - 모던 3D 스타일 */
.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.feature-card {
    background: white;
    border-radius: var(--radius-large);
    padding: 3rem 2rem;
    text-align: center;
    transition: var(--transition);
    border: 1px solid var(--border-color);
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--primary-color);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

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

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-hover);
}

.feature-icon {
    width: 80px;
    height: 80px;
    background: var(--primary-color);
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 2rem;
    font-size: 2rem;
    color: white;
    position: relative;
    overflow: hidden;
}

.feature-icon::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
    transition: left 0.6s;
}

.feature-card:hover .feature-icon::before {
    left: 100%;
}

.feature-title {
    font-size: 1.4rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--text-dark);
}

.feature-description {
    color: var(--text-light);
    line-height: 1.6;
}

/* 사용법 섹션 - 타임라인 스타일 */
.how-to-section {
    background: var(--bg-light);
    position: relative;
}

.steps-container {
    position: relative;
    max-width: 1000px;
    margin: 0 auto;
}

.step-item {
    display: flex;
    align-items: center;
    margin-bottom: 4rem;
    position: relative;
}

.step-item:nth-child(even) {
    flex-direction: row-reverse;
}

.step-number-wrapper {
    width: 100px;
    height: 100px;
    background: var(--primary-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    font-weight: 800;
    color: white;
    margin: 0 3rem;
    box-shadow: 0 10px 30px rgba(96, 150, 180, 0.3);
    position: relative;
    z-index: 2;
}

.step-content {
    flex: 1;
    background: white;
    padding: 3rem;
    border-radius: var(--radius-large);
    box-shadow: var(--shadow);
    position: relative;
}

.step-content::before {
    content: '';
    position: absolute;
    top: 50%;
    width: 0;
    height: 0;
    border: 15px solid transparent;
}

.step-item:nth-child(odd) .step-content::before {
    right: -30px;
    border-left-color: white;
    transform: translateY(-50%);
}

.step-item:nth-child(even) .step-content::before {
    left: -30px;
    border-right-color: white;
    transform: translateY(-50%);
}

.step-title {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--text-dark);
}

.step-description {
    color: var(--text-light);
    line-height: 1.6;
}

/* 정책 섹션 - 아코디언 스타일 */
.policy-accordion .card {
    background: white;
    border: none;
    border-radius: var(--radius) !important;
    box-shadow: var(--shadow);
    margin-bottom: 1rem;
    overflow: hidden;
}

.policy-accordion .card-header {
    background: white;
    border: none;
    padding: 0;
}

.policy-accordion .btn {
    background: none;
    border: none;
    width: 100%;
    text-align: left;
    padding: 1.5rem 2rem;
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--text-dark);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.policy-accordion .btn:hover {
    background: var(--bg-light);
}

.policy-accordion .card-body {
    padding: 0 2rem 2rem;
    color: var(--text-light);
    line-height: 1.6;
}
.cta-section {
    background: var(--text-dark);
    color: white;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.cta-section::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, var(--primary-color) 0%, transparent 70%);
    opacity: 0.1;
    animation: pulse 4s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.1); }
}

.cta-content {
    position: relative;
    z-index: 2;
}

.cta-title {
    font-size: 3rem;
    font-weight: 800;
    margin-bottom: 1.5rem;
}

.cta-subtitle {
    font-size: 1.3rem;
    margin-bottom: 3rem;
    opacity: 0.9;
}

.footer {
    background: #0f0f0f;
    color: white;
    padding: 4rem 0 2rem;
}

.footer-content {
    border-bottom: 1px solid #333;
    padding-bottom: 3rem;
    margin-bottom: 2rem;
}

.footer-brand {
    font-size: 1.5rem;
    font-weight: 800;
    color: white;
    margin-bottom: 1rem;
}

.footer-description {
    color: #999;
    margin-bottom: 2rem;
}

.footer-title {
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    color: white;
}

.footer-link {
    color: #ccc;
    text-decoration: none;
    display: block;
    margin-bottom: 0.8rem;
    transition: var(--transition);
    padding: 4px 0;
}

.footer-link:hover {
    color: var(--primary-color);
    transform: translateX(4px);
}

.footer-bottom {
    text-align: center;
    color: #666;
}

.modal-content {
    border: none;
    border-radius: var(--radius-large);
    box-shadow: var(--shadow-hover);
}

.modal-header {
    background: var(--primary-color);
    color: white;
    border-radius: var(--radius-large) var(--radius-large) 0 0;
    border-bottom: none;
}

.modal-title {
    font-weight: 700;
}

.btn-close {
    filter: invert(1);
}

.modal-body {
    padding: 2rem;
    max-height: 70vh;
}

.modal-body h6 {
    color: var(--primary-color);
    font-weight: 700;
    margin-top: 2rem;
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid var(--bg-light);
}

.modal-body h6:first-child {
    margin-top: 0;
}

.modal-body ul, .modal-body ol {
    padding-left: 1.5rem;
}

.modal-body li {
    margin-bottom: 0.5rem;
    line-height: 1.6;
}

.modal-footer {
    border-top: 1px solid var(--border-color);
    padding: 1rem 2rem;
}

.faq-item {
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    margin-bottom: 1rem;
    overflow: hidden;
}

.faq-question {
    background: var(--bg-light);
    padding: 1rem 1.5rem;
    margin: 0;
    cursor: pointer;
    border: none;
    width: 100%;
    text-align: left;
    font-weight: 600;
    color: var(--text-dark);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.faq-question:hover {
    background: var(--bg-primary);
}

.faq-answer {
    padding: 1.5rem;
    background: white;
    border-top: 1px solid var(--border-color);
    line-height: 1.6;
}

.faq-icon {
    transition: transform 0.3s ease;
}

.faq-item.active .faq-icon {
    transform: rotate(180deg);
}
.support-card {
    background: white;
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    padding: 2rem;
    text-align: center;
    transition: var(--transition);
    height: 100%;
}

.support-card:hover {
    border-color: var(--primary-color);
    transform: translateY(-5px);
    box-shadow: var(--shadow);
}

.support-icon {
    width: 60px;
    height: 60px;
    background: var(--primary-color);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
    font-size: 1.5rem;
}

.support-title {
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--text-dark);
}

.support-description {
    color: var(--text-light);
    margin-bottom: 1.5rem;
}

.support-contact {
    font-weight: 600;
    color: var(--primary-color);
}
@media (max-width: 768px) {
    .hero-title {
        font-size: 2.5rem;
    }

    .section-title {
        font-size: 2rem;
    }

    .download-buttons {
        flex-direction: column;
    }

    .download-stats {
        justify-content: center;
    }

    .step-item {
        flex-direction: column !important;
        text-align: center;
    }

    .step-item:nth-child(even) {
        flex-direction: column !important;
    }

    .step-content::before {
        display: none;
    }

    .step-number-wrapper {
        margin: 0 0 2rem 0;
    }

    .phone-mockup {
        transform: none;
        max-width: 250px;
    }
}
.animate-on-scroll {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s ease;
}

.animate-on-scroll.animated {
    opacity: 1;
    transform: translateY(0);
}