/* ========================================
   Reset & Base Styles
   ======================================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --color-primary: #000;
    --color-secondary: #333;
    --color-accent: #2c2855;
    --color-white: #fff;
    --color-gray-light: #f5f5f5;
    --color-gray: #999;
    --font-main: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Malgun Gothic', sans-serif;
    --transition: all 0.3s ease;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-main);
    color: var(--color-secondary);
    line-height: 1.6;
    overflow-x: hidden;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition);
}

button {
    cursor: pointer;
    border: none;
    background: none;
    font-family: inherit;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Skip Navigation */
.skip-nav {
    position: absolute;
    top: -100px;
    left: 0;
    padding: 10px;
    background: var(--color-primary);
    color: var(--color-white);
    z-index: 9999;
}

.skip-nav:focus {
    top: 0;
}

/* ========================================
   Header
   ======================================== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    transition: all 0.3s ease;
}

.header-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 15px 20px;
    max-width: 1400px;
    margin: 0 auto;
}

.logo {
    flex-shrink: 0;
}

.logo img {
    height: 40px;
    width: auto;
}

/* Desktop Navigation */
.gnb {
    display: none;
}

.gnb-list {
    display: flex;
    list-style: none;
    gap: 40px;
}

.gnb-item {
    position: relative;
}

.gnb-item > a {
    font-size: 14px;
    font-weight: 500;
    padding: 10px 0;
    display: block;
}

.gnb-item:hover > a {
    color: var(--color-accent);
}

.gnb-sub {
    position: absolute;
    top: 100%;
    left: 0;
    background: var(--color-white);
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
    min-width: 200px;
    padding: 10px 0;
    list-style: none;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: var(--transition);
}

.gnb-item:hover .gnb-sub {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.gnb-sub li {
    padding: 8px 20px;
    font-size: 13px;
}

.gnb-sub li:hover {
    background: var(--color-gray-light);
}

/* Language Toggle */
.lang-toggle {
    display: none;
    gap: 10px;
    font-size: 13px;
}

.lang-toggle a {
    padding: 5px 10px;
}

.lang-active {
    font-weight: bold;
    color: var(--color-accent);
}

/* Mobile Menu Button */
.mobile-menu-btn {
    display: flex;
    flex-direction: column;
    gap: 5px;
    width: 30px;
    height: 25px;
    z-index: 1001;
}

.mobile-menu-btn span {
    display: block;
    width: 100%;
    height: 3px;
    background: var(--color-primary);
    transition: var(--transition);
}

.mobile-menu-btn.active span:nth-child(1) {
    transform: rotate(45deg) translate(8px, 8px);
}

.mobile-menu-btn.active span:nth-child(2) {
    opacity: 0;
}

.mobile-menu-btn.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -7px);
}

/* Mobile Navigation */
.mobile-nav {
    position: fixed;
    top: 0;
    right: -100%;
    width: 80%;
    max-width: 350px;
    height: 100vh;
    background: var(--color-white);
    z-index: 1002;
    transition: right 0.3s ease;
    overflow-y: auto;
    box-shadow: -5px 0 15px rgba(0,0,0,0.1);
}

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

.mobile-nav-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px;
    border-bottom: 1px solid var(--color-gray-light);
}

.mobile-nav-header img {
    height: 30px;
}

.mobile-nav-close {
    font-size: 36px;
    color: var(--color-primary);
    line-height: 1;
}

.mobile-lang {
    display: flex;
    gap: 15px;
    padding: 15px 20px;
    border-bottom: 1px solid var(--color-gray-light);
    font-size: 14px;
}

.mobile-nav-menu {
    padding: 20px 0;
}

.mobile-nav-menu ul {
    list-style: none;
}

.mobile-nav-menu > ul > li {
    border-bottom: 1px solid var(--color-gray-light);
}

.mobile-nav-menu > ul > li > a {
    display: block;
    padding: 15px 20px;
    font-weight: 500;
    font-size: 15px;
}

.mobile-nav-menu ul ul {
    background: var(--color-gray-light);
}

.mobile-nav-menu ul ul li a {
    display: block;
    padding: 12px 20px 12px 40px;
    font-size: 13px;
}

/* ========================================
   Hero Section
   ======================================== */
.hero {
    position: relative;
    height: 100vh;
    min-height: 600px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    margin-top: 70px;
}

.hero-media {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
    overflow: hidden;
}

.hero-media img,
.hero-media video {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.hero-media-item {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.3);
    z-index: 2;
}

.hero-content {
    position: relative;
    z-index: 3;
    text-align: center;
    color: var(--color-white);
    padding: 20px;
}

.hero-title {
    font-size: clamp(36px, 6vw, 72px);
    font-weight: 700;
    margin-bottom: 24px;
    letter-spacing: -1px;
    font-family: 'Georgia', 'Times New Roman', serif;
    line-height: 1.2;
    text-shadow: 0 2px 8px rgba(0,0,0,0.3);
    transition: opacity 0.6s ease-in-out;
}

.hero-subtitle {
    font-size: clamp(16px, 2vw, 22px);
    font-weight: 300;
    opacity: 0.95;
    letter-spacing: 0.5px;
    line-height: 1.6;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Malgun Gothic', sans-serif;
    transition: opacity 0.6s ease-in-out;
}

.scroll-indicator {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 3;
}

.scroll-indicator span {
    display: block;
    width: 2px;
    height: 40px;
    background: var(--color-white);
    animation: scroll 2s infinite;
}

@keyframes scroll {
    0%, 100% { opacity: 0; transform: translateY(0); }
    50% { opacity: 1; transform: translateY(20px); }
}

/* ========================================
   Sections
   ======================================== */
section {
    padding: 80px 20px;
}

.section-title {
    font-size: clamp(28px, 4vw, 42px);
    font-weight: 300;
    text-align: center;
    margin-bottom: 20px;
    letter-spacing: 1px;
}

.section-subtitle {
    text-align: center;
    font-size: 16px;
    color: var(--color-gray);
    margin-bottom: 50px;
    line-height: 1.8;
}

/* ========================================
   Brands Section
   ======================================== */
.brands-section {
    background: var(--color-gray-light);
}

.brands-slider {
    display: flex;
    overflow: hidden;
    margin-bottom: 30px;
}

.brand-card {
    min-width: 100%;
    padding: 40px 20px;
    text-align: center;
    transition: var(--transition);
}

.brand-card img {
    width: 100%;
    max-width: 300px;
    height: 300px;
    object-fit: cover;
    margin: 0 auto 30px;
    border-radius: 10px;
}

.brand-card h3 {
    font-size: 24px;
    margin-bottom: 15px;
    font-weight: 500;
}

.brand-card p {
    color: var(--color-gray);
    font-size: 15px;
}

.slider-controls {
    display: flex;
    justify-content: center;
    gap: 20px;
}

.slider-btn {
    width: 50px;
    height: 50px;
    border: 2px solid var(--color-primary);
    border-radius: 50%;
    font-size: 20px;
    transition: var(--transition);
}

.slider-btn:hover {
    background: var(--color-primary);
    color: var(--color-white);
}

/* ========================================
   About Preview Section
   ======================================== */
.about-preview {
    display: flex;
    flex-direction: column;
    gap: 40px;
}

.about-image img {
    width: 100%;
    height: 400px;
    object-fit: cover;
}

.about-content {
    padding: 0 20px;
}

.about-content h3 {
    font-size: 32px;
    margin-bottom: 20px;
    font-weight: 300;
}

.about-content p {
    font-size: 16px;
    line-height: 1.8;
    margin-bottom: 30px;
    color: var(--color-gray);
}

/* ========================================
   PR/News Section
   ======================================== */
.news-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 30px;
    margin-bottom: 50px;
}

.news-card {
    background: var(--color-white);
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
    transition: var(--transition);
}

.news-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(0,0,0,0.15);
}

.news-card img {
    width: 100%;
    height: 250px;
    object-fit: cover;
}

.news-card-content {
    padding: 25px;
}

.news-card h3 {
    font-size: 20px;
    margin-bottom: 15px;
    font-weight: 500;
}

.news-card p {
    font-size: 14px;
    color: var(--color-gray);
    line-height: 1.6;
}

/* ========================================
   Buttons
   ======================================== */
.btn-primary,
.btn-secondary {
    display: inline-block;
    padding: 15px 40px;
    border-radius: 30px;
    font-size: 14px;
    font-weight: 500;
    text-align: center;
    transition: var(--transition);
}

.btn-primary {
    background: var(--color-primary);
    color: var(--color-white);
}

.btn-primary:hover {
    background: var(--color-secondary);
}

.btn-secondary {
    border: 2px solid var(--color-primary);
    color: var(--color-primary);
}

.btn-secondary:hover {
    background: var(--color-primary);
    color: var(--color-white);
}

/* ========================================
   Footer
   ======================================== */
.footer {
    background: var(--color-accent);
    color: var(--color-white);
    padding: 50px 20px 30px;
    position: relative;
}

.footer-logo {
    text-align: center;
    margin-bottom: 30px;
}

.footer-logo img {
    height: 40px;
    margin: 0 auto;
    filter: brightness(0) invert(1);
}

.footer-info {
    margin-bottom: 30px;
}

.info-row {
    display: flex;
    flex-direction: column;
    padding: 10px 0;
    font-size: 13px;
    line-height: 1.8;
}

.info-label {
    font-weight: 500;
    margin-bottom: 5px;
}

.info-value {
    opacity: 0.8;
}

.footer-copyright {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid rgba(255,255,255,0.2);
    font-size: 12px;
    opacity: 0.7;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 15px;
}

/* ========================================
   Admin Access Button
   ======================================== */
.admin-access-btn {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.2);
    color: var(--color-white);
    font-size: 20px;
    transition: var(--transition);
    border: 2px solid rgba(255, 255, 255, 0.3);
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    margin-top: 20px;
}

.admin-access-btn:hover {
    background: rgba(255, 255, 255, 0.3);
    border-color: rgba(255, 255, 255, 0.5);
    transform: scale(1.1);
}

.admin-access-btn:active {
    transform: scale(0.95);
}

/* Admin Modal */
.admin-modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.7);
    z-index: 9999;
    align-items: center;
    justify-content: center;
    animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.admin-modal-content {
    background: var(--color-white);
    padding: 40px;
    border-radius: 15px;
    width: 90%;
    max-width: 400px;
    position: relative;
    box-shadow: 0 10px 50px rgba(0,0,0,0.3);
    animation: slideUp 0.3s ease;
}

@keyframes slideUp {
    from { 
        opacity: 0;
        transform: translateY(30px);
    }
    to { 
        opacity: 1;
        transform: translateY(0);
    }
}

.admin-modal-close {
    position: absolute;
    top: 15px;
    right: 15px;
    font-size: 32px;
    color: var(--color-gray);
    background: none;
    border: none;
    cursor: pointer;
    line-height: 1;
    transition: var(--transition);
}

.admin-modal-close:hover {
    color: var(--color-primary);
    transform: rotate(90deg);
}

.admin-modal-content h3 {
    font-size: 24px;
    margin-bottom: 25px;
    text-align: center;
    font-weight: 500;
}

.admin-modal-content .form-group {
    margin-bottom: 20px;
}

.admin-modal-content .form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    font-size: 14px;
}

.admin-modal-content .form-group input {
    width: 100%;
    padding: 12px;
    border: 1px solid #ddd;
    border-radius: 5px;
    font-size: 14px;
    font-family: inherit;
}

.admin-modal-content .form-group input:focus {
    outline: none;
    border-color: var(--color-accent);
}

/* ========================================
   Tablet Styles (768px+)
   ======================================== */
@media (min-width: 768px) {
    .header-container {
        padding: 20px 40px;
    }

    .logo img {
        height: 50px;
    }

    .mobile-menu-btn {
        display: none;
    }

    .gnb {
        display: block;
    }

    .lang-toggle {
        display: flex;
    }

    .hero {
        margin-top: 90px;
    }

    section {
        padding: 100px 40px;
    }

    .brand-card {
        padding: 60px 40px;
    }

    .news-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 40px;
    }

    .about-preview {
        flex-direction: row;
        align-items: center;
    }

    .about-image,
    .about-content {
        flex: 1;
    }

    .info-row {
        flex-direction: row;
        gap: 20px;
    }

    .info-label {
        min-width: 150px;
        margin-bottom: 0;
    }
}

/* ========================================
   Desktop Styles (1024px+)
   ======================================== */
@media (min-width: 1024px) {
    .brand-card {
        min-width: 50%;
    }

    .news-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .about-image img {
        height: 500px;
    }
}

/* ========================================
   Large Desktop Styles (1400px+)
   ======================================== */
@media (min-width: 1400px) {
    .brand-card {
        min-width: 33.333%;
    }
}