/* =============================================
   통합된 모바일 스타일 - 모든 모바일 관련 CSS 통합
   ============================================= */

/* CSS 변수 정의 */
:root {
    --bg-darker: #0d0d0d;
    --bg-dark: #1a1a1a;
    --border-gray: #333333;
    --text-gray: #cccccc;
    --primary-red: #ff3333;
    --primary-dark: #cc0000;
}

/* PC에서 nav 기본 스타일 */
nav {
    display: flex;
    align-items: center;
}

/* =============================================
   모바일 네비게이션 (새로운 슬라이드 메뉴)
   ============================================= */

/* 모바일 메뉴 버튼 */
.mobile-menu-btn {
    display: none;
    position: relative;
    width: 30px;
    height: 24px;
    background: none;
    border: none;
    cursor: pointer;
    z-index: 1001;
    transition: opacity 0.3s ease;
}

/* 메뉴가 열렸을 때 햄버거 버튼 완전히 숨기기 */
.mobile-menu-btn.active {
    display: none !important;
}

.mobile-menu-btn span {
    display: block;
    position: absolute;
    height: 3px;
    width: 100%;
    background: #ffffff;
    border-radius: 3px;
    opacity: 1;
    left: 0;
    transform: rotate(0deg);
    transition: all 0.3s ease;
}

.mobile-menu-btn span:nth-child(1) {
    top: 0px;
}

.mobile-menu-btn span:nth-child(2) {
    top: 10px;
}

.mobile-menu-btn span:nth-child(3) {
    top: 20px;
}

/* 메뉴 열렸을 때 span 요소들도 숨기기 */
.mobile-menu-btn.active span {
    display: none !important;
}

/* 모바일 네비게이션 컨테이너 */
.mobile-nav-container {
    display: none;
    position: fixed;
    top: 60px; /* 헤더 아래부터 시작 */
    right: -100%;
    width: 100%;
    height: calc(100vh - 60px); /* 헤더 높이 제외 */
    background: #000000;
    z-index: 999;
    transition: right 0.3s ease;
    overflow-y: auto;
    flex-direction: column;
}

.mobile-nav-container.active {
    right: 0;
}

/* 모바일 닫기 버튼 */
.mobile-close-btn {
    position: absolute;
    top: 20px;
    right: 20px;
    width: 40px;
    height: 40px;
    background: none;
    border: none;
    cursor: pointer;
    z-index: 1002;
    color: rgba(255, 255, 255, 0.6);
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
}

.mobile-close-btn:hover {
    color: #ffffff;
    background: rgba(255, 255, 255, 0.1);
    transform: rotate(90deg);
}

/* 모바일 메뉴 헤더 - 제거 */
.mobile-nav-header {
    display: none;
}

/* 모바일 메뉴 리스트 */
.mobile-nav-menu {
    list-style: none;
    padding: 0;
    margin: 0;
    flex: 1;
    padding-top: 30px;
}

/* 메뉴 아이템 애니메이션 */
.mobile-nav-container.active .mobile-nav-menu li {
    opacity: 0;
    transform: translateX(30px);
    animation: slideInMenu 0.4s ease forwards;
}

.mobile-nav-container.active .mobile-nav-menu li:nth-child(1) { animation-delay: 0.1s; }
.mobile-nav-container.active .mobile-nav-menu li:nth-child(2) { animation-delay: 0.15s; }
.mobile-nav-container.active .mobile-nav-menu li:nth-child(3) { animation-delay: 0.2s; }
.mobile-nav-container.active .mobile-nav-menu li:nth-child(4) { animation-delay: 0.25s; }
.mobile-nav-container.active .mobile-nav-menu li:nth-child(5) { animation-delay: 0.3s; }
.mobile-nav-container.active .mobile-nav-menu li:nth-child(6) { animation-delay: 0.35s; }
.mobile-nav-container.active .mobile-nav-menu li:nth-child(7) { animation-delay: 0.4s; }

@keyframes slideInMenu {
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.mobile-nav-menu li {
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.mobile-nav-menu .nav-link {
    display: block;
    padding: 20px 30px;
    color: rgba(255, 255, 255, 0.9);
    text-decoration: none;
    font-size: 1.05rem;
    font-weight: 400;
    transition: all 0.3s ease;
    position: relative;
    letter-spacing: 0.5px;
    text-align: center; /* 가운데 정렬 추가 */
}

.mobile-nav-menu .nav-link:hover,
.mobile-nav-menu .nav-link.active {
    color: #ff3333;
    /* 배경색 제거 */
}

.mobile-nav-menu .nav-link.active::before {
    display: none; /* 빨간 세로선 제거 */
}

/* 모바일 메뉴 푸터 */
.mobile-nav-footer {
    padding: 40px 30px 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    margin-top: auto;
    text-align: center;
    /* 배경색 제거 */
}

.mobile-contact-info {
    color: #666666;
    font-size: 0.9rem;
    line-height: 2;
}

.mobile-contact-info p:first-child {
    color: #999999;
    margin-bottom: 15px;
    font-weight: 500;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.mobile-contact-info a {
    color: #ff3333;
    text-decoration: none;
    font-size: 0.95rem;
    display: inline-block;
    transition: all 0.3s ease;
}

.mobile-contact-info a:hover {
    color: #ff6666;
    transform: translateY(-2px);
}

/* 오버레이 - 제거 */
.mobile-nav-overlay {
    display: none !important;
}

/* 바디 스크롤 막기 */
body.mobile-menu-open {
    overflow: hidden;
}

/* =============================================
   768px 이하 모바일 스타일
   ============================================= */
@media (max-width: 768px) {
    /* 모바일 메뉴 버튼 표시 */
    .mobile-menu-btn {
        display: block;
        z-index: 900; /* 닫기 버튼보다 낮게 설정 */
    }
    
    /* PC 네비게이션 숨기기 */
    .header nav {
        display: none !important;
    }
    
    /* 헤더 스타일 */
    .header {
        height: 60px !important;
        padding: 0 !important;
        position: fixed !important;
        transform: translateY(0) !important;
        background: #000000 !important;
        background-color: #000000 !important;
        z-index: 900 !important; /* 모바일 네비게이션보다 낮게 */
    }
    
    .header.hidden {
        transform: translateY(0) !important;
    }
    
    .header-container {
        padding: 0 1rem !important;
        height: 60px !important;
        display: flex !important;
        align-items: center !important;
        justify-content: space-between !important;
    }
    
    /* 헤더 로고 크기 조정 */
    .header .logo-text {
        font-size: 1.4rem !important;
        color: #ffffff !important;
    }
    
    .header .logo-sub {
        font-size: 0.7rem !important;
        color: #ff3333 !important;
    }
    
    /* 스크롤된 헤더 스타일 */
    .header.scrolled {
        background: rgba(0, 0, 0, 0.95) !important;
    }
    
    /* 모바일 네비게이션 표시 */
    .mobile-nav-container {
        display: flex;
    }
    
    /* 메인 비주얼 모바일 조정 */
    .main-visual {
        margin-top: 60px !important;
        height: calc(100vh - 60px) !important;
        min-height: 500px !important;
    }
    
    .visual-title {
        margin-bottom: 1rem !important;
    }
    
    .title-line {
        font-size: clamp(2.5rem, 10vw, 4rem) !important;
        letter-spacing: -1px !important;
        margin-bottom: 0.5rem !important;
    }
    
    .title-sub {
        font-size: 1.1rem !important;
        margin-top: 1rem !important;
        line-height: 1.4 !important;
    }
    
    .visual-desc {
        font-size: 0.95rem !important;
        line-height: 1.6 !important;
        padding: 0 1rem !important;
        margin-bottom: 2rem !important;
    }
    
    .visual-desc br {
        display: none;
    }
    
    /* 버튼 모바일 스타일 */
    .visual-buttons {
        width: 100%;
        padding: 0 1rem;
    }
    
    .btn-primary,
    .btn-secondary {
        width: 100% !important;
        padding: 14px 24px !important;
        font-size: 1rem !important;
    }
    
    /* 스크롤 인디케이터 */
    .scroll-indicator {
        bottom: 20px !important;
    }
    
    /* 회사 소개 섹션 모바일 */
    .company-intro {
        padding: 60px 0 !important;
    }
    
    .section-header {
        margin-bottom: 2rem !important;
    }
    
    .section-title {
        font-size: 2rem !important;
        margin-bottom: 0.5rem !important;
    }
    
    .section-desc {
        font-size: 1rem !important;
    }
    
    .intro-content h3 {
        font-size: 1.5rem !important;
        margin-bottom: 1rem !important;
    }
    
    .intro-content p {
        font-size: 0.95rem !important;
        line-height: 1.6 !important;
        margin-bottom: 1rem !important;
    }
    
    .intro-features {
        margin: 2rem 0 !important;
    }
    
    .feature-item {
        padding: 1rem !important;
    }
    
    .feature-number {
        font-size: 1.5rem !important;
    }
    
    .feature-text {
        font-size: 0.85rem !important;
    }
    
    /* 주요 제품 섹션 모바일 */
    .main-products {
        padding: 60px 0 !important;
    }
    
    .products-grid {
        grid-template-columns: 1fr !important;
        gap: 1.5rem !important;
        padding: 0 1rem !important;
    }
    
    .product-card {
        margin: 0 !important;
        border-radius: 12px !important;
        overflow: hidden !important;
        box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3) !important;
        background: var(--bg-darker) !important;
        border: 1px solid var(--border-gray) !important;
        display: flex !important;
        flex-direction: column !important;
    }
    
    .product-image {
        width: 100% !important;
        height: 200px !important;
        overflow: hidden !important;
        background: #ffffff !important;
        display: flex !important;
        align-items: center !important;
        justify-content: center !important;
        padding: 20px !important;
        border-bottom: 1px solid var(--border-gray) !important;
    }
    
    .product-image img {
        max-width: 80% !important;
        max-height: 80% !important;
        width: auto !important;
        height: auto !important;
        object-fit: contain !important;
    }
    
    .product-content {
        padding: 1.5rem !important;
        text-align: center !important;
    }
    
    .product-content h3 {
        font-size: 1.3rem !important;
        margin-bottom: 0.5rem !important;
    }
    
    .product-content p {
        font-size: 0.9rem !important;
        margin-bottom: 1rem !important;
        color: var(--text-gray) !important;
    }
    
    .product-link {
        display: inline-block !important;
        padding: 0.75rem 2rem !important;
        background: var(--primary-red) !important;
        color: white !important;
        border-radius: 25px !important;
        font-size: 0.9rem !important;
        font-weight: 500 !important;
        transition: all 0.3s ease !important;
    }
    
    .product-link:hover {
        background: var(--primary-dark) !important;
        transform: translateY(-2px) !important;
    }
    
    /* CTA 섹션 모바일 */
    .cta-section {
        padding: 60px 0 !important;
    }
    
    .cta-content h2 {
        font-size: 1.8rem !important;
        margin-bottom: 1rem !important;
        line-height: 1.3 !important;
    }
    
    .cta-content p {
        font-size: 1rem !important;
        margin-bottom: 2rem !important;
    }
    
    .cta-buttons {
        flex-direction: column !important;
        width: 100% !important;
        padding: 0 1rem !important;
    }
    
    .btn-white,
    .btn-outline {
        width: 100% !important;
        padding: 14px 24px !important;
        font-size: 1rem !important;
        justify-content: center !important;
    }
    
    /* 푸터 모바일 */
    .footer {
        background-color: var(--bg-darker) !important;
    }
    
    .footer-top {
        padding: 40px 0 !important;
        background-color: var(--bg-darker) !important;
        border-bottom: 1px solid var(--border-gray) !important;
    }
    
    .footer-content {
        display: grid !important;
        grid-template-columns: 1fr !important;
        gap: 2rem !important;
        text-align: center !important;
    }
    
    .footer-info {
        margin-bottom: 2rem !important;
    }
    
    .footer-logo {
        font-size: 1.5rem !important;
        margin-bottom: 0.5rem !important;
    }
    
    .footer-links {
        display: grid !important;
        grid-template-columns: 1fr 1fr !important;
        gap: 2rem !important;
        margin-bottom: 2rem !important;
        text-align: left !important;
    }
    
    .footer-column h4 {
        font-size: 1rem !important;
        margin-bottom: 1rem !important;
    }
    
    .footer-column ul {
        text-align: left !important;
    }
    
    .footer-column li {
        margin-bottom: 0.5rem !important;
    }
    
    .footer-column a {
        font-size: 0.9rem !important;
    }
    
    .footer-contact {
        text-align: left !important;
        padding: 0 1rem !important;
    }
    
    .footer-contact h4 {
        font-size: 1rem !important;
        margin-bottom: 1rem !important;
        text-align: center !important;
    }
    
    .contact-item {
        font-size: 0.9rem !important;
        margin-bottom: 0.75rem !important;
        display: flex !important;
        align-items: flex-start !important;
        gap: 0.5rem !important;
    }
    
    .contact-item svg {
        flex-shrink: 0 !important;
        margin-top: 2px !important;
    }
    
    .footer-bottom {
        padding: 20px 0 !important;
        background-color: var(--bg-darker) !important;
    }
    
    .footer-bottom-content {
        display: flex !important;
        flex-direction: column !important;
        align-items: center !important;
        gap: 1rem !important;
        text-align: center !important;
    }
    
    .copyright {
        font-size: 0.85rem !important;
    }
    
    .footer-legal {
        gap: 1rem !important;
    }
    
    .footer-legal a {
        font-size: 0.85rem !important;
    }
    
    /* 모달 모바일 */
    .modal-content {
        margin: 20px !important;
        padding: 20px !important;
        max-height: calc(100vh - 40px) !important;
        overflow-y: auto !important;
    }
    
    .modal-title {
        font-size: 1.5rem !important;
    }
    
    .modal-body {
        font-size: 0.9rem !important;
    }
    
    .modal-close {
        font-size: 24px !important;
        top: 10px !important;
        right: 10px !important;
    }
}

/* =============================================
   아주 작은 화면 대응 (320px 이하)
   ============================================= */
@media (max-width: 320px) {
    .mobile-nav-container {
        width: 90%;
    }
    
    .mobile-nav-menu .nav-link {
        font-size: 1rem;
        padding: 18px 20px;
    }
}

/* =============================================
   작은 모바일 기기 (480px 이하)
   ============================================= */
@media (max-width: 480px) {
    .header-container {
        padding: 0 0.75rem !important;
    }
    
    .logo-text {
        font-size: 1.1rem !important;
    }
    
    .logo-sub {
        font-size: 0.65rem !important;
    }
    
    .title-line {
        font-size: 2.2rem !important;
    }
    
    .title-sub {
        font-size: 1rem !important;
    }
    
    .visual-desc {
        font-size: 0.9rem !important;
    }
    
    .section-title {
        font-size: 1.75rem !important;
    }
    
    .product-card {
        margin: 0 0.5rem !important;
    }
}

/* =============================================
   가로 모드 대응
   ============================================= */
@media (max-width: 768px) and (orientation: landscape) {
    .mobile-nav-container {
        width: 60%;
        max-width: 400px;
    }
    
    .mobile-nav-header {
        padding: 20px;
    }
    
    .mobile-nav-menu .nav-link {
        padding: 15px 20px;
    }
    
    .main-visual {
        min-height: 400px !important;
    }
}

/* =============================================
   iOS Safari 대응
   ============================================= */
@supports (-webkit-touch-callout: none) {
    .nav-menu {
        -webkit-overflow-scrolling: touch;
    }
    
    .main-visual {
        min-height: -webkit-fill-available;
    }
}

/* =============================================
   태블릿 (769px - 1024px)
   ============================================= */
@media (min-width: 769px) and (max-width: 1024px) {
    .header-container {
        padding: 0 2rem;
    }
    
    .nav-menu {
        gap: 2rem;
    }
}

/* =============================================
   큰 화면 (1400px 이상)
   ============================================= */
@media (min-width: 1400px) {
    .container {
        max-width: 1400px;
    }
}