/* 랜딩 페이지 스타일 */

:root {
    --primary-color: #3498db;
    --secondary-color: #2ecc71;
    --dark-color: #2c3e50;
    --light-color: #ecf0f1;
    --text-color: #34495e;
    --border-color: #bdc3c7;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: #fff;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* 헤더 */
.landing-header {
    background-color: #fff;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 1000;
}

.landing-header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.landing-header .logo h1 {
    color: var(--primary-color);
    font-size: 1.8rem;
    font-weight: 700;
}

.landing-header .logo h1 a {
    color: inherit;
    text-decoration: none;
}

.landing-header nav a {
    color: var(--text-color);
    text-decoration: none;
    padding: 0.5rem 1rem;
    margin-left: 0.5rem;
    border: 2px solid var(--primary-color);
    border-radius: 5px;
    transition: all 0.3s ease;
    font-weight: 500;
}

.landing-header nav a:hover {
    background-color: var(--primary-color);
    color: #fff;
}

/* Hero 섹션 */
.hero {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: #fff;
    padding: 80px 0;
    text-align: center;
}

.hero h1 {
    font-size: 3rem;
    margin-bottom: 1rem;
    font-weight: 700;
}

.hero .subtitle {
    font-size: 1.25rem;
    margin-bottom: 2rem;
    opacity: 0.95;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.cta-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
}

.btn {
    display: inline-block;
    padding: 1rem 2rem;
    text-decoration: none;
    border-radius: 5px;
    font-weight: 600;
    transition: all 0.3s ease;
    border: 2px solid transparent;
}

.btn-primary {
    background-color: #fff;
    color: #667eea;
}

.btn-primary:hover {
    background-color: transparent;
    color: #fff;
    border-color: #fff;
}

/* Features 섹션 */
.features {
    padding: 80px 0;
    background-color: #f8f9fa;
}

.features h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    color: var(--dark-color);
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.feature-card {
    background: #fff;
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 6px 12px rgba(0,0,0,0.15);
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.feature-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--dark-color);
}

.feature-card p {
    color: #7f8c8d;
    line-height: 1.6;
}

/* About 섹션 */
.about {
    padding: 80px 0;
    background-color: #fff;
}

.about h2 {
    font-size: 2.5rem;
    margin-bottom: 2rem;
    color: var(--dark-color);
    text-align: center;
}

.about p {
    font-size: 1.1rem;
    line-height: 1.8;
    margin-bottom: 1.5rem;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.about ul {
    max-width: 800px;
    margin: 2rem auto;
    padding-left: 2rem;
}

.about ul li {
    font-size: 1.1rem;
    margin-bottom: 0.75rem;
    color: #555;
}

/* Footer */
.landing-footer {
    background-color: var(--dark-color);
    color: #fff;
    padding: 3rem 0 1rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-section h3,
.footer-section h4 {
    margin-bottom: 1rem;
    color: #fff;
}

.footer-section p {
    color: #bdc3c7;
    line-height: 1.6;
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: 0.5rem;
}

.footer-section ul li a {
    color: #bdc3c7;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-section ul li a:hover {
    color: var(--primary-color);
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid #34495e;
    color: #95a5a6;
}

/* 법적 문서 페이지 */
.legal-page {
    padding: 60px 0;
    background-color: #f8f9fa;
}

.legal-page .container {
    max-width: 900px;
    background-color: #fff;
    padding: 3rem;
    border-radius: 10px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

.legal-page h1 {
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
    color: var(--dark-color);
}

.update-date {
    color: #7f8c8d;
    margin-bottom: 2rem;
    font-size: 0.9rem;
}

.legal-page section {
    margin-bottom: 2.5rem;
}

.legal-page h2 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--dark-color);
    border-bottom: 2px solid var(--primary-color);
    padding-bottom: 0.5rem;
}

.legal-page p,
.legal-page li {
    line-height: 1.8;
    color: #555;
    margin-bottom: 0.75rem;
}

.legal-page ul {
    padding-left: 2rem;
}

.legal-page ul li {
    margin-bottom: 0.5rem;
}

.legal-page strong {
    color: var(--dark-color);
}

.legal-page a {
    color: var(--primary-color);
    text-decoration: none;
}

.legal-page a:hover {
    text-decoration: underline;
}

/* 반응형 디자인 */
@media (max-width: 768px) {
    .hero h1 {
        font-size: 2rem;
    }
    
    .hero .subtitle {
        font-size: 1rem;
    }
    
    .features h2,
    .about h2 {
        font-size: 2rem;
    }
    
    .feature-grid {
        grid-template-columns: 1fr;
    }
    
    .cta-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .legal-page .container {
        padding: 2rem 1.5rem;
    }
    
    .legal-page h1 {
        font-size: 2rem;
    }
}