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

/* 기본 설정 */
body {
    font-family: 'Noto Sans KR', sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #ffffff;
}

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

/* 헤더 */
.header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 1.5rem 0;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 15px;
}

.logo i {
    font-size: 2.2rem;
    color: #fff;
}

.logo h1 {
    font-size: 2rem;
    font-weight: 700;
    margin: 0;
}

.logo .subtitle {
    font-size: 1.1rem;
    opacity: 0.9;
    font-weight: 300;
}

/* 히어로 섹션 */
.hero {
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    padding: 5rem 0;
    text-align: center;
}

.hero-title {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    color: #2c3e50;
}

.hero-description {
    font-size: 1.3rem;
    color: #5a6c7d;
    line-height: 1.8;
    max-width: 600px;
    margin: 0 auto;
}

/* 앱 섹션 */
.apps {
    padding: 6rem 0;
    background-color: #ffffff;
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 4rem;
    color: #2c3e50;
}

.apps-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(450px, 1fr));
    gap: 3rem;
    max-width: 1000px;
    margin: 0 auto;
}

.app-card {
    background: white;
    padding: 2.5rem;
    border-radius: 20px;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    border: 1px solid #f1f3f4;
}

.app-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 35px rgba(0, 0, 0, 0.15);
}

.app-icon {
    width: 80px;
    height: 80px;
    margin-bottom: 2rem;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 20px;
    display: flex;
    justify-content: center;
    align-items: center;
}

.app-icon i {
    font-size: 2.2rem;
    color: white;
}

.app-info h4 {
    font-size: 1.8rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    color: #2c3e50;
}

.app-subtitle {
    font-size: 1.1rem;
    color: #667eea;
    font-weight: 500;
    margin-bottom: 1rem;
}

.app-description {
    color: #5a6c7d;
    line-height: 1.7;
    margin-bottom: 1.5rem;
    font-size: 1.05rem;
}

.app-status {
    margin-bottom: 2rem;
}

.status-badge {
    display: inline-block;
    padding: 6px 16px;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.status-badge.available {
    background: linear-gradient(135deg, #4CAF50, #45a049);
    color: white;
}

.status-badge.coming-soon {
    background: linear-gradient(135deg, #FF9800, #F57C00);
    color: white;
}

.app-actions {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 30px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 500;
    font-size: 1.1rem;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.btn-primary {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

.btn-secondary {
    background: linear-gradient(135deg, #f8f9fa, #e9ecef);
    color: #5a6c7d;
    border: 2px solid #dee2e6;
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.15);
}

.download-links {
    display: flex;
    gap: 1rem;
    justify-content: center;
}

.download-btn {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    text-decoration: none;
    transition: all 0.3s ease;
    box-shadow: 0 3px 10px rgba(0, 0, 0, 0.1);
}

.download-btn.android {
    background: linear-gradient(135deg, #4CAF50, #45a049);
    color: white;
}

.download-btn.ios {
    background: linear-gradient(135deg, #007AFF, #0056b3);
    color: white;
}

.download-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
}

.download-btn i {
    font-size: 1.3rem;
}

/* 소개 섹션 */
.about {
    padding: 5rem 0;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    text-align: center;
}

.about-description {
    font-size: 1.3rem;
    color: #5a6c7d;
    line-height: 1.8;
    margin-bottom: 3rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.contact-info {
    max-width: 500px;
    margin: 0 auto;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 15px;
    justify-content: center;
    padding: 1.5rem;
    background: white;
    border-radius: 15px;
    box-shadow: 0 3px 15px rgba(0, 0, 0, 0.08);
}

.contact-item i {
    font-size: 1.5rem;
    color: #667eea;
    flex-shrink: 0;
}

.contact-item span {
    color: #5a6c7d;
    line-height: 1.6;
}

/* 푸터 */
.footer {
    background: #2c3e50;
    color: white;
    padding: 3rem 0;
    text-align: center;
}

.footer-logo {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 12px;
    margin-bottom: 1rem;
    font-size: 1.4rem;
    font-weight: 600;
}

.footer-logo i {
    font-size: 1.6rem;
}

.footer-text {
    color: #bdc3c7;
    margin-bottom: 2rem;
    font-size: 1.1rem;
}

.footer-links {
    display: flex;
    justify-content: center;
    gap: 2rem;
}

.footer-links a {
    color: #ecf0f1;
    text-decoration: none;
    transition: color 0.3s ease;
    font-weight: 500;
}

.footer-links a:hover {
    color: #667eea;
}

/* 반응형 디자인 */
@media (max-width: 768px) {
    .hero-title {
        font-size: 2.2rem;
    }

    .hero-description {
        font-size: 1.1rem;
    }

    .apps-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .app-card {
        padding: 2rem;
    }

    .footer-links {
        flex-direction: column;
        gap: 1rem;
    }

    .logo {
        flex-direction: column;
        gap: 5px;
        text-align: center;
    }

    .logo h1 {
        font-size: 1.6rem;
    }

    .contact-item {
        flex-direction: column;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }

    .hero {
        padding: 3rem 0;
    }

    .hero-title {
        font-size: 1.9rem;
    }

    .apps {
        padding: 4rem 0;
    }

    .about {
        padding: 4rem 0;
    }

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

    .app-card {
        padding: 1.5rem;
    }

    .app-info h4 {
        font-size: 1.5rem;
    }

    .download-links {
        gap: 0.5rem;
    }

    .download-btn {
        width: 45px;
        height: 45px;
    }
}