/* Base & Reset */
@import url('https://cdn.jsdelivr.net/gh/orioncactus/pretendard/dist/web/static/pretendard.css');

:root {
    --color-black: #000;
    --color-white: #fff;
    --color-gray-dark: #333;
    --color-gray-light: #888;
    --color-gray-bg: #f9f9f9;
    --color-border: #e5e5e5;

    --header-height: 90px;
    --font-family: 'Pretendard', -apple-system, BlinkMacSystemFont, system-ui, Roboto, sans-serif;
}

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

body {
    font-family: var(--font-family);
    color: var(--color-black);
    background-color: var(--color-white);
    line-height: 1.6;
    letter-spacing: -0.02em;
    -webkit-font-smoothing: antialiased;
}

a {
    color: inherit;
    text-decoration: none;
}

ul,
li {
    list-style: none;
}

/* 
 * Safe Animations (JS 장애/로딩 이슈 대비 가시성 보장)
 * 요소가 투명한 상태로 남는 것을 방지하기 위해, 애니메이션을 CSS 단독으로 처리하는 키프레임 추가
 */
.fade-in-safe {
    opacity: 0;
    transform: translateY(30px);
    /* 0.5초 대기 후 강제 노출 수행 */
    animation: fadeInFallback 0.8s ease-out 0.5s forwards;
    transition: opacity 1s cubic-bezier(0.165, 0.84, 0.44, 1), transform 1s cubic-bezier(0.165, 0.84, 0.44, 1);
}

@keyframes fadeInFallback {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* JS 활성화 시 적용되는 트랜지션 (CSS 애니메이션을 무효화) */
.is-visible .fade-in-safe {
    opacity: 1 !important;
    transform: translateY(0) !important;
    animation: none;
}

/* Common Layout (Blank Corp Style: 넓은 여백) */
.content-inner {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 40px;
}

/* Buttons */
.btn-ghost {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 16px 36px;
    border: 1px solid var(--color-black);
    color: var(--color-black);
    font-size: 15px;
    font-weight: 700;
    background: transparent;
    transition: all 0.4s ease;
    cursor: pointer;
}

.btn-ghost:hover {
    background: var(--color-black);
    color: var(--color-white);
}

/* Header */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: var(--header-height);
    background-color: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(12px);
    z-index: 9999;
    border-bottom: 1px solid transparent;
    transition: all 0.3s ease;
}

.header.scrolled {
    border-bottom: 1px solid var(--color-border);
}

.header-inner {
    max-width: 1600px;
    margin: 0 auto;
    padding: 0 50px;
    height: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo a {
    font-size: 24px;
    font-weight: 900;
    letter-spacing: -0.05em;
}

.gnb .nav-list {
    display: flex;
    gap: 60px;
}

.nav-list a {
    font-size: 15px;
    font-weight: 600;
    position: relative;
    padding: 10px 0;
    display: block;
    /* 드롭다운 적용을 위해 노출 방식 수정 */
}

/* Dropdown Menu */
.has-dropdown {
    position: relative;
}

.dropdown {
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%) translateY(10px);
    background: var(--color-white);
    border: 1px solid var(--color-border);
    padding: 24px 30px;
    min-width: 200px;
    text-align: center;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s cubic-bezier(0.165, 0.84, 0.44, 1);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
    /* 은은한 입체감 */
}

.has-dropdown:hover .dropdown {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
}

.dropdown li {
    margin-bottom: 16px;
}

.dropdown li:last-child {
    margin-bottom: 0;
}

.dropdown a {
    font-size: 13px;
    color: var(--color-gray-dark);
    padding: 4px 0;
    font-weight: 500;
    transition: color 0.3s ease;
}

.dropdown a:hover {
    color: var(--color-black);
    font-weight: 700;
}

/* 기존 nav-list 관련 밑줄 애니메이션 */
.nav-list>li>a::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--color-black);
    transition: width 0.3s ease;
}

.nav-list>li>a:hover::after {
    width: 100%;
}


.header-right {
    display: flex;
    align-items: center;
    gap: 30px;
}

.lang-toggle {
    display: flex;
    gap: 12px;
    align-items: center;
    font-size: 13px;
    color: var(--color-gray-light);
    font-weight: 500;
}

.lang-btn {
    border: none;
    background: none;
    color: inherit;
    font-family: inherit;
    font-weight: inherit;
    cursor: pointer;
    transition: color 0.3s ease;
}

.lang-btn.active,
.lang-btn:hover {
    color: var(--color-black);
    font-weight: 800;
}

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

/* Helper Class for Sub Pages */
.page-padding {
    padding-top: calc(var(--header-height) + 100px);
}

/* Hero Section */
.hero-section {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding-top: var(--header-height);
    background-color: var(--color-gray-bg);
}

.hero-title {
    font-size: 90px;
    font-weight: 900;
    line-height: 1.15;
    margin-bottom: 30px;
    letter-spacing: -0.04em;
    color: var(--color-black);
}

.hero-subtitle {
    font-size: 24px;
    font-weight: 500;
    /* 서브 카피의 무게감 */
    color: var(--color-gray-dark);
    letter-spacing: -0.02em;
}

.mt-60 {
    margin-top: 60px;
}

/* Quick Link */
.quick-link {
    position: absolute;
    right: 50px;
    bottom: 50px;
    font-size: 15px;
    font-weight: 700;
    color: var(--color-black);
    display: inline-flex;
    align-items: center;
    gap: 8px;
    transition: opacity 0.3s ease;
}

.quick-link:hover {
    opacity: 0.6;
}

/* About Section */
.about-section {
    padding: 150px 0;
    background-color: var(--color-gray-bg);
}

.vision-area {
    text-align: center;
    margin-bottom: 150px;
}

.section-title {
    font-size: 50px;
    font-weight: 800;
    margin-bottom: 20px;
}

.section-subtitle {
    font-size: 24px;
    font-weight: 600;
    margin-bottom: 40px;
    color: var(--color-gray-dark);
}

.section-desc {
    font-size: 16px;
    line-height: 1.8;
    color: var(--color-gray-dark);
}

/* Area Title (공통) */
.area-title {
    font-size: 30px;
    font-weight: 800;
    margin-bottom: 60px;
    padding-bottom: 20px;
    border-bottom: 2px solid var(--color-black);
    letter-spacing: -0.02em;
}

.mt-120 {
    margin-top: 120px;
}

.mt-40 {
    margin-top: 40px;
}

/* Timeline Area */
.timeline-list {
    position: relative;
    padding-left: 40px;
}

.timeline-list::before {
    content: '';
    position: absolute;
    top: 0;
    left: 20px;
    width: 2px;
    height: 100%;
    background-color: var(--color-border);
}

.timeline-item {
    position: relative;
    padding-left: 60px;
    margin-bottom: 80px;
    /* 기본적으로 연하게 시작해서 active 시 진해짐 */
    opacity: 0.3;
    transform: translateX(30px);
    transition: all 0.8s cubic-bezier(0.165, 0.84, 0.44, 1);
}

/* Fallback: JS 미작동(스크롤 미감지 시)에도 타임라인 내용이 보이도록 1초 딜레이 후 강제 렌더링 */
.timeline-item.fall-safe {
    animation: timelineFallback 0.5s ease-out 1s forwards;
}

@keyframes timelineFallback {
    to {
        opacity: 0.6;
        transform: translateX(0);
    }
}

.timeline-item.active {
    opacity: 1 !important;
    transform: translateX(0) !important;
    animation: none;
    /* Fallback 해제 */
}

.timeline-item::before {
    content: '';
    position: absolute;
    top: 15px;
    left: -26px;
    /* 20px 기준점을 맞춤 */
    width: 14px;
    height: 14px;
    border-radius: 50%;
    background-color: var(--color-border);
    transition: all 0.4s ease;
}

.timeline-item.active::before {
    transform: scale(1.5);
    background-color: var(--color-black);
}

.timeline-year {
    display: block;
    font-size: 36px;
    font-weight: 800;
    margin-bottom: 12px;
    color: var(--color-gray-dark);
    letter-spacing: -0.03em;
    transition: all 0.4s ease;
}

.timeline-item.active .timeline-year {
    color: var(--color-black);
    font-size: 42px;
}

.timeline-content {
    display: block;
    font-size: 18px;
    color: var(--color-gray-light);
    line-height: 1.8;
    transition: all 0.4s ease;
    font-weight: 400;
}

.timeline-item.active .timeline-content {
    color: var(--color-black);
    font-weight: 500;
}

/* Information Area */
.info-layout {
    display: flex;
    gap: 60px;
    align-items: stretch;
}

.info-logo-box {
    flex: 0 0 300px;
    border: 1px solid var(--color-border);
    display: flex;
    justify-content: center;
    align-items: center;
    background-color: var(--color-white);
    padding: 40px;
}

.logo-placeholder {
    font-size: 24px;
    font-weight: 800;
    color: var(--color-gray-light);
    text-align: center;
    line-height: 1.2;
}

.info-table-wrap {
    flex: 1;
}

.info-table {
    width: 100%;
    border-collapse: collapse;
    border-top: 1px solid var(--color-black);
}

.info-table th,
.info-table td {
    padding: 24px 0;
    border-bottom: 1px solid var(--color-border);
    text-align: left;
    font-size: 15px;
}

.info-table th {
    width: 160px;
    font-weight: 600;
    color: var(--color-black);
}

.info-table td {
    color: var(--color-gray-dark);
    line-height: 1.6;
}

/* Business Section */
.division-area {
    padding: 150px 0;
    border-bottom: 1px solid var(--color-border);
}

.game-area {
    background-color: var(--color-white);
    /* 톤 차이 */
}

.business-section .division-area:first-child {
    background-color: var(--color-gray-bg);
}

.division-header {
    text-align: center;
    margin-bottom: 100px;
}

.division-badge {
    display: inline-block;
    padding: 8px 20px;
    border: 1px solid var(--color-black);
    font-size: 13px;
    font-weight: 700;
    border-radius: 30px;
    margin-bottom: 30px;
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
}

.feature-card {
    padding: 60px 40px;
    background: var(--color-white);
    text-align: center;
    border: 1px solid var(--color-border);
    transition: transform 0.4s ease, box-shadow 0.4s ease;
}

.game-area .feature-card {
    background: var(--color-gray-bg);
    border: none;
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.05);
}

.feature-card h4 {
    font-size: 20px;
    font-weight: 800;
    margin-bottom: 20px;
    letter-spacing: -0.02em;
}

.feature-card p {
    font-size: 15px;
    color: var(--color-gray-dark);
    line-height: 1.6;
}

/* Brand Grid (Commerce) */
.brand-grid {
    display: flex;
    flex-direction: column;
    gap: 60px;
}

.brand-card {
    display: flex;
    align-items: center;
    gap: 80px;
    padding: 80px;
    background: var(--color-white);
    border: 1px solid var(--color-border);
    transition: box-shadow 0.4s ease;
}

.brand-card:hover {
    box-shadow: 0 30px 60px rgba(0, 0, 0, 0.08);
}

.brand-logo {
    flex: 0 0 360px;
    height: 360px;
    display: flex;
    justify-content: center;
    align-items: center;
    background: #f4f4f4;
    font-size: 20px;
    font-weight: 800;
    color: var(--color-gray-light);
}

.brand-info {
    flex: 1;
}

.brand-info h5 {
    font-size: 16px;
    font-weight: 600;
    color: var(--color-gray-dark);
    margin-bottom: 15px;
}

.brand-info h3 {
    font-size: 46px;
    font-weight: 800;
    margin-bottom: 30px;
    letter-spacing: -0.02em;
    line-height: 1.2;
}

.brand-info p {
    font-size: 18px;
    color: var(--color-gray-dark);
    line-height: 1.8;
}

.brand-links {
    display: flex;
    gap: 30px;
}

.text-link {
    font-size: 15px;
    font-weight: 700;
    text-decoration: underline;
    text-underline-offset: 4px;
    transition: color 0.3s ease;
}

.text-link:hover {
    color: var(--color-gray-light);
}

/* Platform Grid (Game) */
.platform-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 40px;
}

.platform-card {
    padding: 80px 60px;
    background: var(--color-gray-bg);
    text-align: center;
    border: 1px solid var(--color-border);
    transition: all 0.4s ease;
    display: block;
}

.platform-card:hover {
    background: var(--color-black);
    color: var(--color-white);
    transform: translateY(-10px);
}

.platform-card h3 {
    font-size: 32px;
    font-weight: 800;
    margin-bottom: 15px;
    letter-spacing: 0.05em;
}

.platform-card p {
    font-size: 16px;
    color: var(--color-gray-light);
    margin-bottom: 30px;
    transition: color 0.4s ease;
}

.platform-card:hover p {
    color: #e0e0e0;
}

.platform-card .text-link {
    display: inline-block;
    font-size: 24px;
    text-decoration: none;
    color: inherit;
}

/* Global Redesign Section */
.global-redesign-area {
    padding-bottom: 150px;
    background-color: var(--color-white);
}

.text-center {
    text-align: center;
}

.global-hero {
    margin-bottom: 100px;
}

.global-main-title {
    font-size: 64px;
    font-weight: 900;
    margin-bottom: 24px;
    letter-spacing: -0.02em;
    color: var(--color-black);
}

.global-sub-title {
    font-size: 24px;
    font-weight: 500;
    color: var(--color-gray-dark);
}

.mt-80 {
    margin-top: 80px;
}

/* Map Visual Container */
.global-map-visual {
    position: relative;
    max-width: 1100px;
    margin: 0 auto;
    padding: 20px;
}

.asia-map-svg {
    width: 100%;
    height: auto;
    display: block;
}

.continent-line {
    fill: none;
    stroke: var(--color-border);
    stroke-width: 2;
    stroke-linecap: round;
    opacity: 0.5;
}

.net-line {
    fill: none;
    stroke: var(--color-gray-dark);
    stroke-width: 1.5;
    stroke-dasharray: 4 6;
    opacity: 0.6;
    animation: dashMove 20s linear infinite;
}

@keyframes dashMove {
    to {
        stroke-dashoffset: -1000;
    }
}

/* Red Points */
.red-point .core-dot {
    fill: #E53935;
    /* 사용자 요청 빨간색 포인트 */
}

.red-point .ring-pulse {
    fill: transparent;
    stroke: #E53935;
    stroke-width: 2;
    animation: redPulse 2s infinite ease-out;
}

@keyframes redPulse {
    0% {
        transform: scale(0.5);
        opacity: 0.8;
    }

    100% {
        transform: scale(3);
        opacity: 0;
    }
}

.point-label {
    font-family: inherit;
    font-size: 20px;
    font-weight: 800;
    fill: var(--color-black);
}

.point-label.align-right {
    text-anchor: end;
}

/* Center Text */
.global-center-text {
    max-width: 900px;
    margin-left: auto;
    margin-right: auto;
    text-align: center;
}

.global-center-text p {
    font-size: 20px;
    font-weight: 400;
    line-height: 1.8;
    color: var(--color-gray-dark);
    word-break: keep-all;
}

/* Corporation Line Card (Information) */
.corp-info-list {
    max-width: 900px;
    margin-left: auto;
    margin-right: auto;
    border-top: 2px solid var(--color-black);
}

.corp-item {
    display: flex;
    align-items: center;
    padding: 40px 0;
    border-bottom: 1px solid var(--color-border);
}

.corp-title {
    flex: 0 0 200px;
    font-size: 22px;
    font-weight: 800;
    color: var(--color-black);
}

.corp-address {
    flex: 1;
    font-size: 18px;
    font-weight: 400;
    color: var(--color-gray-dark);
    line-height: 1.6;
}

/* Contact Redesign Section */
.contact-redesign-area {
    padding-bottom: 50px;
    background-color: var(--color-white);
}

.contact-hero {
    max-width: 900px;
}

.contact-main-title {
    font-size: 56px;
    font-weight: 800;
    color: var(--color-black);
    letter-spacing: -0.02em;
}

.contact-sub-title {
    font-size: 24px;
    font-weight: 700;
    color: var(--color-black);
    letter-spacing: -0.01em;
}

.contact-desc {
    font-size: 16px;
    font-weight: 400;
    color: var(--color-black);
    line-height: 1.8;
}

.contact-info-block {
    max-width: 600px;
    margin-left: 150px;
    /* 이미지처럼 좌측에서 약간 들여쓰기된 느낌 */
}

.info-label {
    font-size: 18px;
    font-weight: 700;
    color: var(--color-black);
    margin-bottom: 5px;
}

.info-line {
    width: 100%;
    height: 1px;
    background-color: var(--color-black);
    margin-bottom: 15px;
}

.info-text {
    font-size: 16px;
    font-weight: 400;
    color: var(--color-black);
}

.email-item {
    display: flex;
    align-items: center;
    gap: 30px;
    margin-bottom: 10px;
}

.email-label {
    font-size: 16px;
    font-weight: 400;
    color: var(--color-black);
    width: 100px;
    /* 이메일 라벨 너비 고정으로 줄맞춤 */
}

.email-link {
    font-size: 16px;
    font-weight: 400;
    color: #4A90E2;
    /* 은은한 블루 톤 링크 색상 */
    text-decoration: underline;
    text-underline-offset: 4px;
    transition: opacity 0.3s ease;
}

.email-link:hover {
    opacity: 0.7;
}

.info-notice {
    font-size: 14px;
    font-weight: 400;
    color: var(--color-black);
    line-height: 1.6;
}

.contact-closing {
    max-width: 1000px;
    margin-left: auto;
    margin-right: auto;
    text-align: center;
}

.contact-closing p {
    font-size: 18px;
    font-weight: 400;
    color: var(--color-black);
    line-height: 1.8;
}

.mb-80 {
    margin-bottom: 80px;
}

/* Footer (Modern Brutalist/Sophisticated) */
.footer {
    padding: 20px 0;
    background-color: var(--color-white);
    border-top: 1px solid var(--color-black);
}

.footer-inner {
    max-width: 1600px;
    margin: 0 auto;
    padding: 0 50px;
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
}

.footer-logo {
    font-family: 'Arial', sans-serif;
    font-size: 13px;
    font-weight: 700;
    margin-bottom: 0;
    color: var(--color-black);
}

.footer-info address {
    font-style: normal;
    font-size: 13px;
    line-height: 1.5;
    color: #555;
    margin-bottom: 5px;
    letter-spacing: 0;
}

.copyright {
    display: block;
    font-family: 'Arial', sans-serif;
    font-size: 12px;
    line-height: 1.5;
    color: #999;
}

.footer-contact a {
    font-size: 13px;
    font-weight: 500;
    color: var(--color-gray-dark);
    text-decoration: none;
    transition: transform 0.3s ease, color 0.3s ease;
    display: inline-block;
}

.footer-contact a:hover {
    background: transparent;
    color: var(--color-black);
    transform: translateX(5px);
}

/* Responsive */
@media (max-width: 1024px) {

    /* Mobile Header & GNB */
    .gnb {
        display: none;
        position: absolute;
        top: var(--header-height);
        left: 0;
        width: 100%;
        height: calc(100vh - var(--header-height));
        background-color: var(--color-white);
        box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
        padding: 40px;
        z-index: 99;
    }

    .gnb.active {
        display: block;
    }

    .nav-list {
        flex-direction: column;
        gap: 30px;
        align-items: flex-start;
    }

    .nav-list>li>a {
        font-size: 24px;
        font-weight: 800;
    }

    .dropdown {
        position: static;
        box-shadow: none;
        background: transparent;
        padding: 15px 0 0 20px;
        opacity: 1;
        visibility: visible;
        display: flex;
        transform: none;
    }

    .mobile-menu-btn {
        display: flex;
        flex-direction: column;
        justify-content: space-between;
        width: 30px;
        height: 20px;
        background: none;
        border: none;
        cursor: pointer;
        z-index: 100;
    }

    .mobile-menu-btn span {
        display: block;
        width: 100%;
        height: 2px;
        background-color: var(--color-black);
        transition: all 0.3s ease;
    }

    /* 햄버거 버튼 애니메이션 (X 자) */
    .mobile-menu-btn.active span:nth-child(1) {
        transform: translateY(9px) rotate(45deg);
    }

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

    .mobile-menu-btn.active span:nth-child(3) {
        transform: translateY(-9px) rotate(-45deg);
    }

    .footer-inner {
        flex-direction: column;
        gap: 60px;
    }

    .hero-title {
        font-size: 50px;
    }

    /* About Responsive */
    .info-layout {
        flex-direction: column;
        gap: 30px;
    }

    .info-logo-box {
        flex: auto;
        padding: 60px 0;
    }

    /* Business Responsive */
    .feature-grid,
    .platform-grid {
        grid-template-columns: 1fr;
    }

    .brand-card {
        flex-direction: column;
        gap: 40px;
        padding: 40px;
    }

    .brand-logo {
        flex: auto;
        width: 100%;
        height: 200px;
    }

    /* Global & Contact Responsive */
    .office-grid {
        grid-template-columns: 1fr;
    }

    .corp-item {
        flex-direction: column;
        align-items: flex-start;
        gap: 20px;
    }

    /* Contact Redesign Responsive */
    .contact-main-title {
        font-size: 40px;
    }

    .contact-info-block {
        margin-left: 0;
    }

    .contact-closing p {
        font-size: 16px;
    }
}