/* 반응형 디자인 */

/* 태블릿 (1024px 이하) */
@media screen and (max-width: 1024px) {
    .container {
        padding: 0 30px;
    }
    
    h1 { font-size: 2rem; }
    h2 { font-size: 1.75rem; }
    h3 { font-size: 1.35rem; }
    
    section {
        padding: 60px 0;
    }
}

/* 모바일 (768px 이하) */
@media screen and (max-width: 768px) {
    .container {
        padding: 0 20px;
    }
    
    h1 { font-size: 1.75rem; }
    h2 { font-size: 1.5rem; }
    h3 { font-size: 1.25rem; }
    
    section {
        padding: 40px 0;
    }
    
    .section-title {
        margin-bottom: 30px;
    }
    
    .btn {
        padding: 10px 20px;
        font-size: 0.9rem;
    }
    
    .card {
        padding: 20px;
    }
}

/* 모바일 (768px 이하) - 헤더 */
@media screen and (max-width: 768px) {
    .header-container {
        padding: 0.75rem 0;
    }
    
    .logo {
        height: 42px;
    }
    
    .nav-menu {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background-color: var(--primary-color);
        flex-direction: column;
        padding: 20px;
        gap: 15px;
        box-shadow: 0 5px 10px rgba(0,0,0,0.1);
    }
    
    .nav-menu.active {
        display: flex;
    }
    
    .nav-menu a {
        text-align: center;
        padding: 10px;
        border-bottom: 1px solid rgba(255,255,255,0.1);
    }
    
    .nav-menu a:last-child {
        border-bottom: none;
    }
    
    .mobile-menu-btn {
        display: flex;
    }
}

/* 모바일 소형 (480px 이하) */
@media screen and (max-width: 480px) {
    .container {
        padding: 0 15px;
    }
    
    h1 { font-size: 1.5rem; }
    h2 { font-size: 1.35rem; }
    h3 { font-size: 1.15rem; }
    
    .btn {
        display: block;
        width: 100%;
        margin-bottom: 10px;
    }
    
    .header-container {
        padding: 0.5rem 0;
    }
    
    .logo {
        height: 36px;
    }
}

/* 푸터 반응형 */
@media screen and (max-width: 768px) {
    .footer-content {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    footer {
        padding: 40px 0 20px;
        margin-top: 60px;
    }
    
    .footer-section {
        text-align: center;
    }
    
    .footer-section ul li {
        justify-content: center;
    }
}

/* 메인 페이지 반응형 */
@media screen and (max-width: 1024px) {
    .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .about-stats {
        grid-template-columns: repeat(3, 1fr);
        gap: 15px;
    }
}

@media screen and (max-width: 768px) {
    /* 히어로 섹션 */
    .hero {
        padding: 120px 0 80px;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-subtitle {
        font-size: 1.1rem;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .hero-buttons .btn {
        width: 200px;
    }
    
    /* 서비스 섹션 */
    .services-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    /* 회사소개 요약 */
    .about-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .about-stats {
        grid-template-columns: repeat(3, 1fr);
    }
    
    /* 공지사항 */
    .news-item {
        flex-direction: column;
        text-align: center;
        gap: 15px;
    }
}

@media screen and (max-width: 480px) {
    .hero-title {
        font-size: 1.75rem;
    }
    
    .hero-subtitle {
        font-size: 1rem;
    }
    
    .service-card {
        padding: 30px 20px;
    }
    
    .about-stats {
        grid-template-columns: 1fr;
    }
    
    .stat {
        padding: 15px;
    }
    
    .news-item {
        padding: 20px;
    }
}

/* 회사소개 페이지 반응형 */
@media screen and (max-width: 1024px) {
    .values-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media screen and (max-width: 768px) {
    /* 페이지 배너 */
    .page-banner {
        padding: 80px 0 40px;
    }
    
    .page-banner h1 {
        font-size: 2rem;
    }
    
    /* CEO 메시지 */
    .ceo-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .ceo-placeholder {
        height: 250px;
        max-width: 300px;
        margin: 0 auto;
    }
    
    /* 비전/미션 */
    .vm-grid {
        grid-template-columns: 1fr;
    }
    
    /* 핵심가치 */
    .values-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    /* 연혁 */
    .timeline::before {
        left: 20px;
    }
    
    .timeline-item::before {
        left: 14px;
    }
    
    .timeline-item {
        flex-direction: column;
        padding-left: 50px;
        gap: 10px;
    }
    
    .timeline-date {
        text-align: left;
        width: auto;
    }
    
    /* 조직구성 */
    .org-chart {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .org-box {
        max-width: 300px;
        margin: 0 auto;
    }
}

@media screen and (max-width: 480px) {
    .page-banner h1 {
        font-size: 1.75rem;
    }
    
    .page-banner p {
        font-size: 1rem;
    }
    
    .vm-item,
    .value-card {
        padding: 30px 20px;
    }
    
    .timeline-content {
        padding: 15px 20px;
    }
}

/* 사업분야 페이지 반응형 */
@media screen and (max-width: 1024px) {
    .service-grid {
        grid-template-columns: 1fr;
    }
}

@media screen and (max-width: 768px) {
    .business-tabs {
        gap: 8px;
    }
    
    .tab-btn {
        padding: 12px 20px;
        font-size: 0.9rem;
    }
    
    .tab-content {
        padding: 30px 20px;
    }
    
    .tab-intro {
        font-size: 1rem;
        margin-bottom: 30px;
    }
    
    .service-item {
        padding: 20px;
    }
    
    .service-item h3 {
        font-size: 1.1rem;
    }
}

@media screen and (max-width: 480px) {
    .tab-btn {
        padding: 10px 15px;
        font-size: 0.85rem;
        flex: 1 1 calc(50% - 4px);
    }
    
    .tab-pane h2 {
        font-size: 1.5rem;
    }
}