/* 기본 설정 */
:root {
    --primary-color: #d4af37; /* 골드 색상 */
    --primary-light: #f5e7a3; /* 밝은 골드 */
    --primary-dark: #b8860b; /* 어두운 골드 */
    --secondary-color: #333;
    --accent-color: #c0c0c0; /* 실버 액센트 색상 */
    --light-color: #f9f7f1; /* 약간 따뜻한 톤의 밝은 색상 */
    --dark-color: #1a1a1a;
    --text-color: #333;
    --border-color: #e0e0e0;
    --shadow: 0 2px 15px rgba(0, 0, 0, 0.05);
    --gradient-gold: linear-gradient(135deg, #d4af37 0%, #f5e7a3 50%, #d4af37 100%);
    --gradient-dark: linear-gradient(135deg, #1a1a1a 0%, #333 100%);
}

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

body {
    font-family: 'Noto Sans KR', 'Montserrat', sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: #fff;
}

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

a {
    text-decoration: none;
    color: inherit;
    transition: all 0.3s ease;
}

ul {
    list-style: none;
}

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

.btn {
    display: inline-block;
    padding: 12px 30px;
    border-radius: 4px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    text-align: center;
    letter-spacing: 0.5px;
}

.primary-btn {
    background-color: var(--primary-color);
    color: white;
    box-shadow: 0 4px 8px rgba(212, 175, 55, 0.2);
}

.primary-btn:hover {
    background-color: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 6px 12px rgba(212, 175, 55, 0.3);
}

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

.secondary-btn:hover {
    background-color: var(--primary-color);
    color: white;
    transform: translateY(-2px);
}

.video-btn {
    background-color: rgba(255, 255, 255, 0.2);
    color: white;
    border: 1px solid rgba(255, 255, 255, 0.5);
    backdrop-filter: blur(5px);
}

.video-btn:hover {
    background-color: rgba(255, 255, 255, 0.3);
    transform: translateY(-2px);
}

.video-btn i {
    margin-right: 8px;
}

.section-header {
    text-align: center;
    margin-bottom: 50px;
}

.section-header h2 {
    font-size: 2.5rem;
    position: relative;
    display: inline-block;
    margin-bottom: 15px;
    color: var(--dark-color);
}

.section-header h2::after {
    content: '';
    position: absolute;
    width: 60px;
    height: 3px;
    background-color: var(--primary-color);
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
}

/* 헤더 스타일 */
header {
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    transition: all 0.3s ease;
}

header.scrolled {
    background-color: rgba(255, 255, 255, 0.98);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 20px;
}

.logo a {
    display: flex;
    align-items: center;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
    letter-spacing: 1px;
}

.logo span {
    font-family: 'Montserrat', sans-serif;
    font-weight: 800;
    letter-spacing: 1.5px;
}

.logo img {
    height: 40px;
    margin-right: 10px;
}

nav .menu {
    display: flex;
}

nav .menu li {
    margin-left: 25px;
}

nav .menu li a {
    font-weight: 500;
    transition: color 0.3s ease;
    position: relative;
}

nav .menu li a::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    background-color: var(--primary-color);
    bottom: -5px;
    left: 0;
    transition: width 0.3s ease;
}

nav .menu li a:hover {
    color: var(--primary-color);
}

nav .menu li a:hover::after {
    width: 100%;
}

.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
}

.mobile-menu-toggle span {
    display: block;
    width: 25px;
    height: 3px;
    background-color: var(--dark-color);
    margin: 5px 0;
    transition: all 0.3s ease;
}

.search-toggle {
    cursor: pointer;
    font-size: 1.2rem;
    color: var(--primary-color);
}

.search-container {
    display: none;
    background-color: var(--light-color);
    padding: 15px 0;
    border-top: 1px solid var(--border-color);
    transition: all 0.3s ease;
}

.search-container form {
    display: flex;
}

.search-container input {
    flex: 1;
    padding: 12px 15px;
    border: 1px solid var(--border-color);
    border-radius: 4px 0 0 4px;
    outline: none;
    background-color: white;
    font-size: 16px;
}

.search-container button {
    padding: 12px 20px;
    background-color: var(--primary-color);
    color: white;
    border: none;
    border-radius: 0 4px 4px 0;
    cursor: pointer;
    font-weight: 500;
}

/* 히어로 섹션 */
.hero {
    position: relative;
    height: 100vh;
    min-height: 700px;
    width: 100%;
    display: flex;
    align-items: center;
    overflow: hidden;
}

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

.slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    opacity: 0;
    transition: opacity 1s ease-in-out;
    z-index: 1;
    filter: brightness(1.2) contrast(0.95);
}

.slide.active {
    opacity: 1;
    z-index: 2;
}

.overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.4);
}

.hero-content {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
    padding: 0 20px;
    z-index: 3;
}

.hero h1 {
    font-size: 3.5rem;
    font-weight: 700;
    color: white;
    margin-bottom: 1.5rem;
    text-shadow: 0px 2px 4px rgba(0, 0, 0, 0.5);
    animation: fadeInUp 1s ease-out;
}

.hero p {
    font-size: 1.5rem;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 2rem;
    text-shadow: 0px 1px 2px rgba(0, 0, 0, 0.5);
    animation: fadeInUp 1s ease-out 0.3s;
    animation-fill-mode: both;
}

.hero-buttons {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-top: 2rem;
    animation: fadeInUp 1s ease-out 0.6s;
    animation-fill-mode: both;
}

.scroll-down {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    animation: bounce 2s infinite;
}

.scroll-down a {
    display: block;
    font-size: 1.5rem;
    color: var(--primary-color);
    text-align: center;
}

.scroll-down a:hover {
    color: white;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateX(-50%) translateY(0);
    }
    40% {
        transform: translateX(-50%) translateY(-20px);
    }
    60% {
        transform: translateX(-50%) translateY(-10px);
    }
}

/* 핵심 가치 섹션 */
.core-values-section {
    padding: 100px 0;
    background-color: var(--light-color);
}

.values-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 50px;
}

.value-card {
    background-color: white;
    border-radius: 10px;
    padding: 40px 30px;
    text-align: center;
    box-shadow: var(--shadow);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    position: relative;
    overflow: hidden;
}

.value-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 5px;
    background: var(--gradient-gold);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.3s ease;
}

.value-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
}

.value-card:hover::before {
    transform: scaleX(1);
}

.value-icon {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 25px;
    transition: transform 0.3s ease;
}

.value-card:hover .value-icon {
    transform: scale(1.1);
}

.value-card h3 {
    font-size: 1.5rem;
    margin-bottom: 15px;
    color: var(--dark-color);
}

.value-card p {
    color: var(--text-color);
    line-height: 1.7;
}

/* 금 시세 위젯 섹션 */
.gold-price-section {
    padding: 50px 0;
    background-color: white;
}

.gold-price-widget {
    background: var(--gradient-dark);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
    color: white;
}

.widget-header {
    background-color: var(--dark-color);
    padding: 1rem;
    border-radius: 8px 8px 0 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.widget-header h3 {
    color: var(--primary-color);
    margin: 0;
    font-size: 1.5rem;
}

.widget-header .last-update {
    font-size: 0.8rem;
    color: var(--light-color);
    opacity: 0.8;
}

.widget-content {
    padding: 30px;
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
}

.price-data, .mining-data {
    flex: 1;
    min-width: 300px;
    padding: 0 15px;
}

.data-item {
    margin-bottom: 25px;
    padding-bottom: 15px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    align-items: center;
}

.data-item:last-child {
    border-bottom: none;
    margin-bottom: 0;
    padding-bottom: 0;
}

.data-item .label {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.9rem;
}

.data-item .value {
    font-size: 1.4rem;
    font-weight: 700;
    color: white;
    transition: color 0.3s ease;
}

.data-item .change {
    font-size: 0.9rem;
    padding: 3px 8px;
    border-radius: 4px;
    margin-left: 10px;
}

.data-item .change.up {
    background-color: rgba(46, 213, 115, 0.2);
    color: #2ed573;
}

.data-item .change.down {
    background-color: rgba(255, 71, 87, 0.2);
    color: #ff4757;
}

.data-item .value.updating {
    animation: pulse-gold 1.5s infinite;
}

@keyframes pulse-gold {
    0% { color: var(--light-color); }
    50% { color: var(--primary-color); }
    100% { color: var(--light-color); }
}

/* 프로젝트 소개 섹션 */
.about-section {
    padding: 100px 0;
    background-color: var(--light-color);
}

.project-overview {
    margin-bottom: 60px;
}

.content-box {
    display: flex;
    align-items: center;
    gap: 40px;
    margin-bottom: 50px;
}

.content-box.reverse {
    flex-direction: row-reverse;
}

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

.text-content h3 {
    font-size: 1.8rem;
    color: var(--primary-color);
    margin-bottom: 20px;
}

.text-content p {
    line-height: 1.8;
    margin-bottom: 20px;
}

.image-content {
    border-radius: 10px;
    overflow: hidden;
    box-shadow: var(--shadow);
}

.image-content img {
    width: 100%;
    height: auto;
    display: block;
    transition: transform 0.5s ease;
}

.image-content img:hover {
    transform: scale(1.03);
}

/* 프로젝트 혜택 */
.project-benefits {
    margin-bottom: 60px;
}

.project-benefits h3 {
    font-size: 1.8rem;
    color: var(--primary-color);
    margin-bottom: 40px;
    text-align: center;
}

.benefits-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.benefit-card {
    background-color: white;
    border-radius: 10px;
    padding: 30px;
    box-shadow: var(--shadow);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.benefit-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

.benefit-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
}

.benefit-icon i {
    font-size: 1.8rem;
    color: white;
}

.benefit-card h4 {
    font-size: 1.2rem;
    color: var(--primary-color);
    margin-bottom: 15px;
}

.benefit-card p {
    line-height: 1.7;
    color: var(--text-color);
}

/* 문제점과 해결방안 */
.problems-solutions {
    margin-bottom: 60px;
}

.problems-solutions h3 {
    font-size: 1.8rem;
    color: var(--primary-color);
    margin-bottom: 40px;
    text-align: center;
}

.table-container {
    max-width: 900px;
    margin: 0 auto;
    overflow-x: auto;
}

.solutions-table {
    width: 100%;
    border-collapse: collapse;
    box-shadow: var(--shadow);
    border-radius: 10px;
    overflow: hidden;
}

.solutions-table th, 
.solutions-table td {
    padding: 15px 20px;
    text-align: left;
    border-bottom: 1px solid #eeeeee;
}

.solutions-table th {
    background-color: var(--primary-color);
    color: white;
    font-weight: 600;
    font-size: 1.1rem;
}

.solutions-table tr:last-child td {
    border-bottom: none;
}

.solutions-table tbody tr {
    background-color: white;
    transition: background-color 0.3s ease;
}

.solutions-table tbody tr:hover {
    background-color: rgba(212, 175, 55, 0.05);
}

/* 반응형 스타일 */
@media (max-width: 992px) {
    .content-box {
        flex-direction: column;
        gap: 30px;
    }
    
    .content-box.reverse {
        flex-direction: column;
    }
    
    .text-content, .image-content {
        width: 100%;
    }
    
    .image-content {
        margin-top: 20px;
    }
    
    .benefits-grid {
        grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    }
}

.mine-overview, .mining-plan {
    margin-top: 60px;
    padding-top: 60px;
    border-top: 1px solid var(--border-color);
}

.mine-overview h3, .mining-plan h3 {
    font-size: 1.8rem;
    color: var(--primary-color);
    margin-bottom: 30px;
    text-align: center;
}

.mine-details-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 40px;
    margin-top: 30px;
}

.mine-details, .mine-map {
    flex: 1;
    min-width: 300px;
}

.details-table {
    width: 100%;
    border-collapse: collapse;
    background-color: white;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: var(--shadow);
}

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

.details-table th {
    background-color: var(--light-color);
    color: var(--primary-color);
    font-weight: 600;
    width: 40%;
}

.details-table tr:last-child th,
.details-table tr:last-child td {
    border-bottom: none;
}

.map-container {
    position: relative;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: var(--shadow);
}

.map-container img {
    width: 100%;
    display: block;
}

.map-markers {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.marker {
    position: absolute;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background-color: var(--primary-color);
    border: 3px solid white;
    box-shadow: 0 0 0 rgba(212, 175, 55, 0.4);
    cursor: pointer;
    animation: pulse 2s infinite;
}

.marker.mine {
    top: 40%;
    left: 60%;
    background-color: var(--primary-color);
}

.marker.railroad {
    top: 70%;
    left: 30%;
    background-color: #3498db;
}

.marker.power {
    top: 25%;
    left: 45%;
    background-color: #e74c3c;
}

.marker::after {
    content: attr(data-info);
    position: absolute;
    left: 50%;
    bottom: 100%;
    transform: translateX(-50%);
    background-color: rgba(0, 0, 0, 0.8);
    color: white;
    padding: 5px 10px;
    border-radius: 4px;
    white-space: nowrap;
    font-size: 12px;
    opacity: 0;
    pointer-events: none;
    transition: all 0.3s ease;
}

.marker:hover::after {
    opacity: 1;
    bottom: calc(100% + 10px);
}

@keyframes pulse {
    0% {
        box-shadow: 0 0 0 0 rgba(212, 175, 55, 0.4);
    }
    70% {
        box-shadow: 0 0 0 10px rgba(212, 175, 55, 0);
    }
    100% {
        box-shadow: 0 0 0 0 rgba(212, 175, 55, 0);
    }
}

.map-legend {
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
    margin-top: 15px;
    justify-content: center;
}

.legend-item {
    display: flex;
    align-items: center;
    margin-right: 15px;
}

.legend-item .dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    margin-right: 8px;
}

.dot.mine {
    background-color: var(--primary-color);
}

.dot.railroad {
    background-color: #3498db;
}

.dot.power {
    background-color: #e74c3c;
}

.mining-chart-container {
    display: flex;
    flex-wrap: wrap;
    gap: 30px;
    margin-top: 30px;
}

.chart-box {
    flex: 1;
    min-width: 300px;
    background-color: white;
    border-radius: 10px;
    padding: 20px;
    box-shadow: var(--shadow);
}

.chart-box h4 {
    margin-bottom: 20px;
    text-align: center;
    color: var(--dark-color);
}

/* 토큰 생태계 섹션 */
.tokenomics-section {
    padding: 100px 0;
    background-color: white;
}

.token-overview {
    margin-bottom: 80px;
}

.token-info {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 30px;
    margin-top: 30px;
}

.info-card {
    flex: 1;
    min-width: 200px;
    max-width: 250px;
    background-color: var(--light-color);
    border-radius: 10px;
    padding: 30px 20px;
    text-align: center;
    box-shadow: var(--shadow);
    transition: transform 0.3s ease;
}

.info-card:hover {
    transform: translateY(-5px);
}

.info-card .icon {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 20px;
}

.info-card h4 {
    margin-bottom: 10px;
    color: var(--dark-color);
}

.info-card p {
    color: var(--text-color);
    font-weight: 600;
}

/* 토큰 분배 섹션 */
.token-distribution {
    background-color: var(--dark-color);
    color: var(--light-color);
    padding: 4rem 2rem;
    text-align: center;
}

.token-distribution h3 {
    color: var(--primary-color);
    margin-bottom: 2rem;
    font-size: 2.5rem;
}

.distribution-content {
    display: flex;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
    max-width: 1200px;
    margin: 0 auto;
    gap: 2rem;
}

.distribution-chart {
    position: relative;
    width: 100%;
    max-width: 500px;
    margin: 0 auto;
}

.chart-container {
    position: relative;
    width: 350px;
    height: 350px;
    margin: 0 auto;
    border-radius: 50%;
    transform-style: preserve-3d;
    perspective: 1000px;
}

.pie-segment {
    position: absolute;
    width: 100%;
    height: 100%;
    left: 0;
    top: 0;
    border-radius: 50%;
    clip-path: polygon(50% 50%, 50% 0%, 100% 0%, 100% 100%, 0% 100%, 0% 0%, 50% 0%);
    transform: rotate(calc(var(--start-angle))) scale(1.005);
    transition: transform 0.3s ease-out;
    transform-origin: center;
    background: conic-gradient(
        from calc(var(--start-angle) - 90deg),
        var(--color-start) 0deg,
        var(--color-end) var(--segment-size)
    );
    overflow: hidden;
}

.pie-segment::before {
    content: attr(data-label) " " attr(data-percentage) "%";
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) rotate(calc(-1 * var(--start-angle))) translateY(-85px) rotate(calc(var(--mid-angle) * 1deg));
    color: white;
    font-weight: bold;
    font-size: 0.85rem;
    text-shadow: 0px 1px 3px rgba(0, 0, 0, 0.6);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.pie-segment:hover {
    transform: rotate(calc(var(--start-angle))) scale(1.05);
    z-index: 10;
}

.pie-segment:hover::before {
    opacity: 1;
}

.chart-inner-circle {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 120px;
    height: 120px;
    background: linear-gradient(135deg, var(--primary-color-light), var(--primary-color));
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    box-shadow: 0 0 20px rgba(0, 0, 0, 0.1);
    z-index: 3;
    overflow: hidden;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.chart-inner-circle:hover {
    transform: translate(-50%, -50%) scale(1.05);
    box-shadow: 0 0 30px rgba(212, 175, 55, 0.3);
}

.chart-inner-circle img {
    width: 85%;
    height: auto;
    object-fit: contain;
    transition: transform 0.5s ease;
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.2));
}

.chart-inner-circle:hover img {
    transform: scale(1.1) rotate(5deg);
}

.chart-shadow {
    position: absolute;
    width: 350px;
    height: 20px;
    bottom: -20px;
    left: 50%;
    transform: translateX(-50%);
    border-radius: 50%;
    background: radial-gradient(ellipse at center, rgba(0, 0, 0, 0.4) 0%, rgba(0, 0, 0, 0) 70%);
    filter: blur(3px);
    z-index: -1;
}

.chart-legend {
    margin-top: 3rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
}

.total-supply {
    font-size: 1.2rem;
    color: var(--primary-color);
    font-weight: bold;
    margin-bottom: 1rem;
}

@media (max-width: 768px) {
    .chart-container {
        width: 280px;
        height: 280px;
    }
    
    .chart-inner-circle {
        width: 120px;
        height: 120px;
    }
    
    .chart-shadow {
        width: 280px;
    }
}

.gold-backing {
    margin-top: 80px;
}

.gold-backing h3 {
    font-size: 1.8rem;
    color: var(--primary-color);
    margin-bottom: 40px;
    text-align: center;
}

.backing-infographic {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    align-items: center;
    gap: 10px;
    margin-top: 30px;
}

.step {
    flex: 1;
    min-width: 200px;
    background-color: var(--light-color);
    border-radius: 10px;
    padding: 25px;
    text-align: center;
    box-shadow: var(--shadow);
}

.step-arrow {
    font-size: 1.5rem;
    color: var(--primary-color);
}

.step-icon {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 15px;
}

.step-content h4 {
    margin-bottom: 10px;
    color: var(--dark-color);
}

.step-content p {
    color: var(--text-color);
    font-size: 0.9rem;
}

.step-content img {
    border-radius: 10px;
    margin-top: 20px;
    box-shadow: var(--shadow);
}

.mining-equipment {
    margin-top: 80px;
}

.mining-equipment h3 {
    font-size: 1.8rem;
    color: var(--primary-color);
    margin-bottom: 40px;
    text-align: center;
}

.equipment-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin-top: 30px;
}

.equipment-card {
    background-color: white;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.equipment-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
}

.equipment-image {
    height: 200px;
    overflow: hidden;
}

.equipment-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.equipment-card:hover .equipment-image img {
    transform: scale(1.05);
}

.equipment-details {
    padding: 20px;
}

.equipment-details h4 {
    font-size: 1.2rem;
    margin-bottom: 10px;
    color: var(--dark-color);
}

.equipment-details p {
    color: var(--text-color);
    font-size: 0.9rem;
    line-height: 1.6;
}

.environmental-impact {
    margin-top: 80px;
}

.environmental-impact h3 {
    font-size: 1.8rem;
    color: var(--primary-color);
    margin-bottom: 40px;
    text-align: center;
}

.impact-container {
    display: flex;
    flex-wrap: wrap;
    gap: 40px;
    align-items: center;
}

.impact-text, .impact-image {
    flex: 1;
    min-width: 300px;
}

.impact-text p {
    margin-bottom: 15px;
    line-height: 1.7;
}

.impact-text ul {
    margin-top: 20px;
    list-style: disc;
    padding-left: 20px;
}

.impact-text ul li {
    margin-bottom: 10px;
    line-height: 1.6;
}

.impact-image img {
    border-radius: 10px;
    box-shadow: var(--shadow);
}

/* 블록체인 기술 섹션 */
.blockchain-section {
    padding: 100px 0;
    background-color: white;
}

.tech-overview {
    margin-bottom: 80px;
}

.blockchain-architecture {
    margin-top: 80px;
}

.blockchain-architecture h3, .smart-contracts h3, .security h3 {
    font-size: 1.8rem;
    color: var(--primary-color);
    margin-bottom: 40px;
    text-align: center;
}

.architecture-diagram {
    background-color: var(--light-color);
    border-radius: 10px;
    padding: 40px;
    box-shadow: var(--shadow);
    margin-top: 30px;
    text-align: center;
}

.architecture-diagram img {
    max-width: 100%;
    margin-bottom: 30px;
}

.diagram-desc {
    text-align: left;
    margin-top: 30px;
}

.diagram-desc h4 {
    margin-bottom: 15px;
    color: var(--dark-color);
}

.diagram-desc p {
    line-height: 1.7;
}

.smart-contracts {
    margin-top: 80px;
}

.contract-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 30px;
}

.contract-card {
    background-color: var(--light-color);
    border-radius: 10px;
    padding: 30px;
    box-shadow: var(--shadow);
    transition: transform 0.3s ease;
}

.contract-card:hover {
    transform: translateY(-5px);
}

.contract-card h4 {
    color: var(--primary-color);
    margin-bottom: 15px;
    display: flex;
    align-items: center;
}

.contract-card h4 i {
    margin-right: 10px;
}

.contract-card p {
    line-height: 1.7;
    margin-bottom: 20px;
}

.contract-card .code-preview {
    background-color: #2f3542;
    border-radius: 5px;
    padding: 15px;
    margin-top: 20px;
    overflow-x: auto;
}

.contract-card .code-preview pre {
    font-family: 'Fira Code', monospace;
    color: #f1f2f6;
    font-size: 0.85rem;
    line-height: 1.5;
}

.security {
    margin-top: 80px;
}

.security-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 30px;
}

.security-card {
    background-color: white;
    border-radius: 10px;
    padding: 30px;
    box-shadow: var(--shadow);
    text-align: center;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.security-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
}

.security-card .icon {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 20px;
}

.security-card h4 {
    color: var(--dark-color);
    margin-bottom: 15px;
}

.security-card p {
    line-height: 1.7;
}

/* 거버넌스 및 커뮤니티 섹션 */
.governance-section {
    padding: 100px 0;
    background-color: var(--light-color);
}

.dao-structure {
    margin-bottom: 80px;
}

.governance-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 50px;
}

.governance-card {
    background-color: white;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: var(--shadow);
}

.governance-card-header {
    background-color: var(--primary-color);
    color: white;
    padding: 20px;
    text-align: center;
}

.governance-card-header h4 {
    font-size: 1.3rem;
    margin: 0;
}

.governance-card-body {
    padding: 30px;
}

.governance-card-body ul {
    padding-left: 20px;
    margin-top: 15px;
}

.governance-card-body ul li {
    margin-bottom: 10px;
    line-height: 1.6;
    list-style-type: disc;
}

.community-engagement {
    margin-top: 80px;
}

.community-engagement h3 {
    font-size: 1.8rem;
    color: var(--primary-color);
    margin-bottom: 40px;
    text-align: center;
}

.community-tabs {
    max-width: 800px;
    margin: 0 auto;
    margin-top: 30px;
}

.tabs-nav {
    display: flex;
    background-color: white;
    border-radius: 10px 10px 0 0;
    overflow: hidden;
}

.tab-button {
    flex: 1;
    padding: 15px;
    cursor: pointer;
    text-align: center;
    background-color: white;
    transition: all 0.3s ease;
    border-bottom: 2px solid var(--border-color);
    font-weight: 500;
}

.tab-button.active {
    color: var(--primary-color);
    border-bottom: 2px solid var(--primary-color);
}

.tab-content {
    background-color: white;
    padding: 30px;
    border-radius: 0 0 10px 10px;
    box-shadow: var(--shadow);
}

.tab-pane {
    display: none;
}

.tab-pane.active {
    display: block;
}

.tab-pane h4 {
    color: var(--primary-color);
    margin-bottom: 20px;
}

.tab-pane p {
    line-height: 1.7;
    margin-bottom: 15px;
}

.tab-pane ul {
    padding-left: 20px;
    margin-top: 15px;
    margin-bottom: 15px;
}

.tab-pane ul li {
    margin-bottom: 10px;
    line-height: 1.6;
    list-style-type: disc;
}

.social-channels {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 15px;
    margin-top: 30px;
}

.social-icon {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background-color: var(--primary-color);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    transition: transform 0.3s ease, background-color 0.3s ease;
}

.social-icon:hover {
    transform: translateY(-5px);
    background-color: var(--primary-dark);
}

/* 팀 및 파트너 섹션 */
.team-section {
    padding: 100px 0;
    background-color: white;
}

.team-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 30px;
    margin-top: 50px;
}

.team-card {
    background-color: var(--light-color);
    border-radius: 10px;
    overflow: hidden;
    box-shadow: var(--shadow);
    text-align: center;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.team-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
}

.team-image {
    width: 100%;
    height: 250px;
    overflow: hidden;
}

.team-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.team-card:hover .team-image img {
    transform: scale(1.05);
}

.team-info {
    padding: 25px;
}

.team-info h3 {
    font-size: 1.3rem;
    margin-bottom: 5px;
    color: var(--dark-color);
}

.team-info .position {
    color: var(--primary-color);
    font-weight: 500;
    margin-bottom: 15px;
}

.team-info p {
    font-size: 0.9rem;
    line-height: 1.6;
    margin-bottom: 20px;
}

.social-links {
    display: flex;
    justify-content: center;
    gap: 15px;
}

.social-links a {
    width: 35px;
    height: 35px;
    border-radius: 50%;
    border: 1px solid var(--primary-color);
    color: var(--primary-color);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
}

.social-links a:hover {
    background-color: var(--primary-color);
    color: white;
}

.partners-section {
    margin-top: 100px;
}

.partners-section h3 {
    font-size: 1.8rem;
    color: var(--primary-color);
    margin-bottom: 40px;
    text-align: center;
}

.partners-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 30px;
    margin-top: 50px;
}

.partner-card {
    background-color: white;
    border-radius: 10px;
    padding: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    height: 120px;
    box-shadow: var(--shadow);
    transition: transform 0.3s ease;
}

.partner-card:hover {
    transform: translateY(-5px);
}

.partner-card img {
    max-width: 80%;
    max-height: 80%;
    object-fit: contain;
    filter: grayscale(100%);
    transition: filter 0.3s ease;
}

.partner-card:hover img {
    filter: grayscale(0%);
}

.advisors-section {
    margin-top: 100px;
}

.advisors-section h3 {
    font-size: 1.8rem;
    color: var(--primary-color);
    margin-bottom: 40px;
    text-align: center;
}

.advisors-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 50px;
}

.advisor-card {
    display: flex;
    align-items: center;
    background-color: var(--light-color);
    border-radius: 10px;
    padding: 20px;
    box-shadow: var(--shadow);
    transition: transform 0.3s ease;
}

.advisor-card:hover {
    transform: translateY(-5px);
}

.advisor-image {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    overflow: hidden;
    margin-right: 20px;
    flex-shrink: 0;
}

.advisor-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.advisor-info h4 {
    margin-bottom: 5px;
    color: var(--dark-color);
}

.advisor-info .position {
    color: var(--primary-color);
    font-weight: 500;
    margin-bottom: 10px;
    font-size: 0.9rem;
}

.advisor-info p {
    font-size: 0.85rem;
    line-height: 1.6;
}

/* 로드맵 섹션 */
.roadmap-section {
    margin-top: 80px;
}

.roadmap-section h3 {
    font-size: 1.8rem;
    color: var(--primary-color);
    margin-bottom: 40px;
    text-align: center;
}

.roadmap-container {
    display: flex;
    flex-direction: column;
    gap: 30px;
    max-width: 1000px;
    margin: 0 auto;
}

.phase-card {
    background-color: white;
    border-radius: 12px;
    box-shadow: var(--shadow);
    overflow: hidden;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.phase-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
}

.phase-header {
    display: flex;
    align-items: center;
    padding: 20px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    color: white;
}

.phase-number {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: white;
    color: var(--primary-color);
    display: flex;
    justify-content: center;
    align-items: center;
    font-weight: 700;
    font-size: 1.3rem;
    margin-right: 15px;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
}

.phase-title {
    flex: 1;
}

.phase-title h4 {
    font-size: 1.2rem;
    margin-bottom: 5px;
}

.phase-period {
    font-size: 0.9rem;
    opacity: 0.9;
}

.phase-motto {
    padding: 15px 20px;
    background-color: rgba(212, 175, 55, 0.1);
    font-style: italic;
    font-weight: 600;
    color: var(--dark-color);
    text-align: center;
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
}

.phase-items {
    padding: 20px 25px 20px 45px;
    list-style-type: none;
}

.phase-items li {
    position: relative;
    margin-bottom: 12px;
    padding-left: 20px;
    line-height: 1.5;
}

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

.phase-items li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 8px;
    width: 8px;
    height: 8px;
    background-color: var(--primary-color);
    border-radius: 50%;
}

/* 각 단계별 고유 색상 */
.phase-card:nth-child(1) .phase-header {
    background: linear-gradient(135deg, #ffd700, #e6b800);
}

.phase-card:nth-child(2) .phase-header {
    background: linear-gradient(135deg, #e6b800, #cc9900);
}

.phase-card:nth-child(3) .phase-header {
    background: linear-gradient(135deg, #cc9900, #b38600);
}

.phase-card:nth-child(4) .phase-header {
    background: linear-gradient(135deg, #b38600, #997300);
}

/* 반응형 조정 */
@media (max-width: 768px) {
    .phase-header {
        flex-direction: column;
        text-align: center;
        padding: 15px;
    }
    
    .phase-number {
        margin-right: 0;
        margin-bottom: 10px;
    }
    
    .phase-items {
        padding: 15px 15px 15px 35px;
    }
}

.future-plans {
    margin-top: 100px;
}

.future-plans h3 {
    font-size: 1.8rem;
    color: var(--primary-color);
    margin-bottom: 40px;
    text-align: center;
}

.plans-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 30px;
}

.plan-card {
    background-color: white;
    border-radius: 10px;
    padding: 30px;
    box-shadow: var(--shadow);
    text-align: center;
    transition: transform 0.3s ease;
}

.plan-card:hover {
    transform: translateY(-5px);
}

.plan-card .icon {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 20px;
}

.plan-card h4 {
    margin-bottom: 15px;
    color: var(--dark-color);
}

.plan-card p {
    line-height: 1.7;
}

/* 푸터 */
footer {
    background-color: var(--dark-color);
    color: var(--light-color);
    padding: 50px 0 20px;
    position: relative;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 30px;
}

.footer-logo {
    flex: 1;
}

.footer-logo img {
    height: 50px;
    margin-bottom: 15px;
}

.footer-logo p {
    max-width: 300px;
    font-size: 14px;
    opacity: 0.8;
}

.footer-nav {
    flex: 1;
    text-align: right;
}

.footer-nav h4 {
    font-size: 18px;
    margin-bottom: 15px;
    color: var(--gold-color);
}

.footer-links {
    display: flex;
    justify-content: flex-end;
    list-style: none;
    padding: 0;
    margin: 0;
}

.footer-links li {
    margin-left: 20px;
}

.footer-links a {
    color: var(--light-color);
    text-decoration: none;
    font-size: 14px;
    transition: color 0.3s;
}

.footer-links a:hover {
    color: var(--gold-color);
}

.copyright {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    font-size: 14px;
}

/* 미디어 쿼리 - 모바일 대응 */
@media (max-width: 768px) {
    .footer-content {
        flex-direction: column;
    }
    
    .footer-logo, .footer-nav {
        width: 100%;
        margin-bottom: 20px;
        text-align: center;
    }
    
    .footer-links {
        justify-content: center;
        flex-wrap: wrap;
    }
    
    .footer-links li {
        margin: 0 10px 10px;
    }
}

/* 미디어 쿼리 */
@media (max-width: 1200px) {
    .hero h1 {
        font-size: 3rem;
    }
    
    .section-header h2 {
        font-size: 2.2rem;
    }
}

@media (max-width: 992px) {
    .hero h1 {
        font-size: 2.5rem;
    }
    
    .hero p {
        font-size: 1.1rem;
    }
    
    .section-header h2 {
        font-size: 2rem;
    }
    
    .content-box {
        flex-direction: column;
    }
    
    .content-box.reverse {
        flex-direction: column;
    }
    
    .text-content, .image-content {
        width: 100%;
    }
    
    .image-content {
        margin-top: 30px;
    }
    
    .roadmap-content {
        width: 42%;
    }
}

@media (max-width: 768px) {
    header .container {
        padding: 15px;
    }
    
    nav .menu {
        display: none;
    }
    
    .mobile-menu-toggle {
        display: block;
    }
    
    .hero h1 {
        font-size: 2.2rem;
    }
    
    .hero-buttons {
        flex-direction: column;
        gap: 15px;
    }
    
    .section-header h2 {
        font-size: 1.8rem;
    }
    
    .roadmap-line {
        left: 30px;
    }
    
    .roadmap-item:nth-child(odd), 
    .roadmap-item:nth-child(even) {
        justify-content: flex-start;
        padding-left: 60px;
    }
    
    .roadmap-dot {
        left: 30px;
    }
    
    .roadmap-content {
        width: 100%;
    }
    
    .roadmap-item:nth-child(odd) .roadmap-arrow,
    .roadmap-item:nth-child(even) .roadmap-arrow {
        left: -10px;
    }
    
    .timeline-item {
        width: 100%;
        left: 0;
        padding-left: 40px;
        text-align: left;
    }
    
    .timeline-item:nth-child(even) {
        left: 0;
    }
    
    .timeline-item::before {
        left: -10px;
    }
    
    .timeline-item:nth-child(odd)::before {
        right: auto;
        left: -10px;
    }
    
    .exchange-timeline::before {
        left: 0;
    }
    
    .footer-menu {
        flex-direction: column;
    }
    
    .footer-nav ul {
        flex-direction: column;
    }
    
    .footer-nav ul li {
        margin-bottom: 10px;
    }
    
    .social-links ul {
        margin-top: 10px;
    }
}

@media (max-width: 576px) {
    .hero h1 {
        font-size: 1.8rem;
    }
    
    .hero p {
        font-size: 1rem;
    }
    
    .btn {
        padding: 10px 20px;
    }
    
    .section-header h2 {
        font-size: 1.6rem;
    }
    
    .process-step {
        flex-direction: column;
    }
    
    .step-number {
        margin-right: 0;
        margin-bottom: 20px;
    }
    
    .process-step:not(:last-child) .step-number::after {
        display: none;
    }
    
    .footer-column {
        flex: 100%;
    }
}

.mining-3d-model {
    margin-top: 80px;
    position: relative;
}

.mining-3d-model h3 {
    font-size: 1.8rem;
    color: var(--primary-color);
    margin-bottom: 40px;
    text-align: center;
}

.model-viewer {
    max-width: 900px;
    margin: 0 auto;
    border-radius: 15px;
    overflow: hidden;
    position: relative;
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.15);
}

.model-placeholder {
    position: relative;
    width: 100%;
    height: 0;
    padding-bottom: 56.25%; /* 16:9 비율 */
    background-color: var(--dark-color);
    overflow: hidden;
}

.model-placeholder img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease-in-out;
}

.model-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to bottom, rgba(0,0,0,0.4), rgba(0,0,0,0.7));
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.model-placeholder:hover .model-overlay {
    opacity: 1;
}

.model-placeholder:hover img {
    transform: scale(1.05);
}

.model-play-button {
    width: 80px;
    height: 80px;
    background-color: var(--primary-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.3);
    transition: transform 0.3s ease, background-color 0.3s ease;
}

.model-play-button:hover {
    transform: scale(1.1);
    background-color: var(--primary-dark);
}

.model-play-button i {
    color: white;
    font-size: 2rem;
}

.model-controls {
    position: absolute;
    bottom: 20px;
    right: 20px;
    display: flex;
    gap: 10px;
    z-index: 10;
}

.model-btn {
    background-color: rgba(0, 0, 0, 0.6);
    color: white;
    border: none;
    border-radius: 30px;
    padding: 10px 20px;
    font-size: 0.9rem;
    cursor: pointer;
    backdrop-filter: blur(5px);
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 8px;
}

.model-btn:hover {
    background-color: var(--primary-color);
    transform: translateY(-3px);
}

.model-btn i {
    font-size: 1.1rem;
}

.model-info {
    position: absolute;
    bottom: 20px;
    left: 20px;
    color: white;
    z-index: 10;
    background-color: rgba(0, 0, 0, 0.6);
    padding: 10px 20px;
    border-radius: 30px;
    font-size: 0.9rem;
    backdrop-filter: blur(5px);
}

.model-tags {
    position: absolute;
    top: 20px;
    left: 20px;
    display: flex;
    gap: 10px;
    z-index: 10;
}

.model-tag {
    background-color: var(--primary-color);
    color: white;
    padding: 5px 15px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 500;
}

.model-features {
    display: flex;
    flex-wrap: wrap;
    gap: 30px;
    margin-top: 40px;
    justify-content: center;
}

.model-feature {
    flex: 1;
    min-width: 250px;
    max-width: 300px;
    background-color: white;
    padding: 25px;
    border-radius: 10px;
    box-shadow: var(--shadow);
    text-align: center;
    transition: transform 0.3s ease;
}

.model-feature:hover {
    transform: translateY(-5px);
}

.feature-icon {
    width: 60px;
    height: 60px;
    background-color: var(--light-color);
    color: var(--primary-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    font-size: 1.8rem;
}

.model-feature h4 {
    margin-bottom: 15px;
    color: var(--dark-color);
}

.model-feature p {
    font-size: 0.95rem;
    line-height: 1.6;
    color: var(--text-color);
}

@media (max-width: 768px) {
    .model-controls {
        bottom: 10px;
        right: 10px;
    }
    
    .model-info {
        bottom: 10px;
        left: 10px;
    }
    
    .model-tags {
        top: 10px;
        left: 10px;
    }
    
    .model-play-button {
        width: 60px;
        height: 60px;
    }
    
    .model-play-button i {
        font-size: 1.5rem;
    }
}

.eco-mining {
    margin-top: 80px;
    position: relative;
    background-color: #f4f9f4; /* 연한 녹색 배경 */
    padding: 60px 30px;
    border-radius: 20px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
    overflow: hidden;
}

.eco-mining::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 10px;
    background: linear-gradient(90deg, #2ecc71, var(--primary-color));
}

.eco-mining h3 {
    font-size: 1.8rem;
    color: var(--primary-color);
    margin-bottom: 40px;
    text-align: center;
    position: relative;
    display: inline-block;
    left: 50%;
    transform: translateX(-50%);
}

.eco-mining h3::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 0;
    width: 100%;
    height: 3px;
    background: linear-gradient(90deg, #2ecc71, var(--primary-color));
}

.eco-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 25px;
    position: relative;
    z-index: 1;
}

.eco-card {
    background-color: white;
    border-radius: 15px;
    padding: 25px 20px;
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    border-bottom: 4px solid transparent;
    height: 100%;
}

.eco-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
    border-bottom: 4px solid #2ecc71;
}

.eco-icon {
    position: relative;
    width: 70px;
    height: 70px;
    border-radius: 50%;
    background: linear-gradient(135deg, #f4f9f4, #e8f5e9);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
    transition: all 0.3s ease;
}

.eco-icon::before {
    content: '';
    position: absolute;
    width: 90%;
    height: 90%;
    border-radius: 50%;
    border: 2px dashed #2ecc71;
    animation: spin 30s linear infinite;
}

@keyframes spin {
    0% {
        transform: rotate(0deg);
    }
    100% {
        transform: rotate(360deg);
    }
}

.eco-card:hover .eco-icon {
    background: linear-gradient(135deg, #e8f5e9, #c8e6c9);
}

.eco-icon i {
    font-size: 2.2rem;
    color: #2ecc71;
    transition: all 0.3s ease;
}

.eco-card:hover .eco-icon i {
    color: var(--primary-color);
    transform: scale(1.1);
}

.eco-card h4 {
    font-size: 1.2rem;
    margin-bottom: 12px;
    color: var(--dark-color);
    position: relative;
    padding-bottom: 12px;
    transition: all 0.3s ease;
}

.eco-card h4::after {
    content: '';
    position: absolute;
    width: 40px;
    height: 2px;
    background-color: #2ecc71;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    transition: all 0.3s ease;
}

.eco-card:hover h4::after {
    width: 60px;
    background-color: var(--primary-color);
}

.eco-card p {
    color: var(--text-color);
    line-height: 1.6;
    font-size: 0.9rem;
    margin: 0;
}

.eco-stats {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 40px;
    margin-top: 50px;
}

.eco-stat {
    flex: 1;
    min-width: 180px;
    text-align: center;
    padding: 20px;
    background-color: white;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
}

.stat-icon {
    font-size: 2rem;
    color: #2ecc71;
    margin-bottom: 15px;
}

.stat-value {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 5px;
    line-height: 1;
}

.stat-label {
    color: var(--text-color);
    font-size: 0.9rem;
}

.eco-facts {
    margin-top: 60px;
    text-align: center;
}

.eco-facts h4 {
    font-size: 1.4rem;
    color: var(--primary-color);
    margin-bottom: 20px;
}

.facts-container {
    display: flex;
    gap: 20px;
    margin-top: 30px;
    overflow-x: auto;
    padding-bottom: 20px;
    scrollbar-width: thin;
    scrollbar-color: var(--primary-light) transparent;
}

.facts-container::-webkit-scrollbar {
    height: 8px;
}

.facts-container::-webkit-scrollbar-track {
    background: transparent;
}

.facts-container::-webkit-scrollbar-thumb {
    background-color: var(--primary-light);
    border-radius: 20px;
}

.fact-card {
    flex: 0 0 auto;
    width: 280px;
    background-color: white;
    border-radius: 10px;
    padding: 20px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.05);
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.fact-icon {
    width: 50px;
    height: 50px;
    background-color: #e8f5e9;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 15px;
}

.fact-icon i {
    color: #2ecc71;
    font-size: 1.5rem;
}

.fact-card p {
    color: var(--text-color);
    font-size: 0.9rem;
    line-height: 1.6;
}

.eco-cta {
    margin-top: 50px;
    text-align: center;
}

.eco-btn {
    display: inline-block;
    padding: 12px 30px;
    background: linear-gradient(90deg, #2ecc71, var(--primary-color));
    color: white;
    border-radius: 30px;
    font-weight: 500;
    box-shadow: 0 10px 20px rgba(46, 204, 113, 0.2);
    transition: all 0.3s ease;
}

.eco-btn:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 30px rgba(46, 204, 113, 0.3);
}

@media (min-width: 1400px) {
    .eco-grid {
        max-width: 1300px;
        margin: 0 auto;
    }
    
    .eco-card {
        padding: 30px 25px;
    }
    
    .eco-icon {
        width: 80px;
        height: 80px;
    }
    
    .eco-card h4 {
        font-size: 1.3rem;
    }
    
    .eco-card p {
        font-size: 0.95rem;
    }
}

@media (max-width: 992px) {
    .eco-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }
    
    .eco-card {
        padding: 20px 15px;
    }
    
    .eco-icon {
        width: 65px;
        height: 65px;
        margin-bottom: 15px;
    }
    
    .eco-card h4 {
        font-size: 1.1rem;
        margin-bottom: 10px;
        padding-bottom: 10px;
    }
}

@media (max-width: 576px) {
    .eco-stats {
        flex-direction: column;
    }
    
    .eco-stat {
        width: 100%;
    }
}

@media (max-width: 768px) {
    .eco-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .eco-mining {
        padding: 40px 20px;
    }
    
    .eco-icon {
        width: 60px;
        height: 60px;
    }
    
    .eco-stats {
        gap: 20px;
    }
    
    .eco-controls {
        bottom: 10px;
        right: 10px;
    }
    
    .eco-info {
        bottom: 10px;
        left: 10px;
    }
    
    .eco-tags {
        top: 10px;
        left: 10px;
    }
    
    .model-play-button {
        width: 60px;
        height: 60px;
    }
    
    .model-play-button i {
        font-size: 1.5rem;
    }
}

.distribution-details {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    width: 100%;
    max-width: 400px;
    text-align: left;
}

.distribution-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 0.5rem;
    border-radius: 8px;
    transition: transform 0.3s ease, background-color 0.3s ease;
}

.distribution-item:hover {
    background-color: rgba(255, 255, 255, 0.1);
    transform: translateX(5px);
}

.color-box {
    width: 20px;
    height: 20px;
    border-radius: 4px;
}

.color-box.sale {
    background: linear-gradient(135deg, #2ecc71, #26ae60);
}

.color-box.team {
    background: linear-gradient(135deg, #3498db, #2980b9);
}

.color-box.marketing {
    background: linear-gradient(135deg, #9b59b6, #8e44ad);
}

.color-box.community {
    background: linear-gradient(135deg, #e74c3c, #c0392b);
}

.color-box.liquidity {
    background: linear-gradient(135deg, #f39c12, #d35400);
}

.color-box.reserve {
    background: linear-gradient(135deg, #1abc9c, #16a085);
}

.item-info h4 {
    font-size: 1rem;
    margin-bottom: 0.2rem;
    color: var(--primary-color);
}

.item-info p {
    font-size: 0.9rem;
    color: var(--light-color);
}

.token-use-cases {
    margin-top: 80px;
}

.token-use-cases h3 {
    font-size: 1.8rem;
    color: var(--primary-color);
    margin-bottom: 40px;
    text-align: center;
}

.use-cases-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin-top: 30px;
}

.use-case-card {
    background-color: white;
    border: 1px solid var(--border-color);
    border-radius: 10px;
    padding: 30px;
    text-align: center;
    box-shadow: var(--shadow);
    transition: transform 0.3s ease;
}

.use-case-card:hover {
    transform: translateY(-5px);
}

.use-case-card .icon {
    font-size: 2rem;
    color: var(--primary-color);
    margin-bottom: 20px;
}

.use-case-card h4 {
    margin-bottom: 15px;
    color: var(--dark-color);
}

.use-case-card p {
    color: var(--text-color);
}

.exchange-listing {
    margin-top: 80px;
}

.exchange-listing h3 {
    font-size: 1.8rem;
    color: var(--primary-color);
    margin-bottom: 40px;
    text-align: center;
}

.exchange-timeline {
    position: relative;
    max-width: 800px;
    margin: 50px auto 0;
    padding: 0 20px;
}

.exchange-timeline::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    width: 2px;
    height: 100%;
    background-color: var(--primary-color);
    transform: translateX(-50%);
}

.timeline-item {
    position: relative;
    width: 50%;
    padding: 0 40px 50px;
}

.timeline-item:nth-child(odd) {
    left: 0;
    text-align: right;
}

.timeline-item:nth-child(even) {
    left: 50%;
}

.timeline-item::before {
    content: '';
    position: absolute;
    top: 0;
    width: 20px;
    height: 20px;
    background-color: var(--primary-color);
    border-radius: 50%;
    box-shadow: 0 0 0 4px rgba(212, 175, 55, 0.2);
}

.timeline-item:nth-child(odd)::before {
    right: -10px;
}

.timeline-item:nth-child(even)::before {
    left: -10px;
}

.timeline-date {
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 10px;
}

.timeline-content h4 {
    margin-bottom: 10px;
}

/* 금 채굴 과정 섹션 */
.mining-process-section {
    background-color: var(--light-color);
    padding: 80px 0;
    position: relative;
}

.mining-process-container {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
    margin-top: 50px;
}

.process-card {
    background-color: white;
    border-radius: 12px;
    box-shadow: var(--shadow);
    position: relative;
    overflow: hidden;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.process-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
}

.process-icon {
    position: absolute;
    top: 20px;
    right: 20px;
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    color: white;
    font-size: 20px;
    z-index: 2;
}

.process-number {
    position: absolute;
    top: 0;
    left: 0;
    padding: 10px 15px;
    background-color: var(--primary-color);
    color: white;
    font-weight: 700;
    font-size: 18px;
    border-bottom-right-radius: 12px;
    z-index: 2;
}

.process-card h3 {
    padding: 25px 20px 5px;
    margin-top: 30px;
    color: var(--dark-color);
    font-size: 20px;
    position: relative;
}

.process-card p {
    padding: 0 20px 15px;
    color: #555;
    font-size: 15px;
    line-height: 1.6;
}

.process-image {
    width: 100%;
    height: 200px;
    overflow: hidden;
    margin-bottom: 15px;
}

.process-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.process-card:hover .process-image img {
    transform: scale(1.1);
}

.process-details {
    padding: 0 20px 25px;
}

.process-details ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.process-details li {
    position: relative;
    padding-left: 20px;
    margin-bottom: 10px;
    font-size: 14px;
    color: #666;
}

.process-details li:before {
    content: '\f105';
    font-family: 'Font Awesome 5 Free';
    font-weight: 900;
    position: absolute;
    left: 0;
    top: 0;
    color: var(--primary-color);
}

.process-cta {
    text-align: center;
    margin-top: 50px;
}

@media (max-width: 1200px) {
    .mining-process-container {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .mining-process-container {
        grid-template-columns: 1fr;
    }
    
    .process-card {
        max-width: 450px;
        margin: 0 auto;
    }
}

/* 프로젝트 다이아그램 스타일 */
.project-diagram {
    position: relative;
    width: 100%;
    height: 400px;
    background-color: #fff;
    border-radius: 10px;
    box-shadow: var(--shadow);
    overflow: hidden;
    display: flex;
    justify-content: center;
    align-items: center;
}

.diagram-center {
    position: absolute;
    width: 120px;
    height: 120px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    border-radius: 50%;
    z-index: 3;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
    animation: pulse 3s infinite;
}

.center-icon {
    font-size: 2.5rem;
    color: white;
    margin-bottom: 5px;
}

.center-text {
    color: white;
    font-weight: 700;
    font-size: 1.2rem;
    text-align: center;
}

.diagram-items {
    position: absolute;
    width: 100%;
    height: 100%;
    z-index: 2;
}

.diagram-item {
    position: absolute;
    width: 90px;
    height: 90px;
    background-color: white;
    border-radius: 50%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    box-shadow: 0 3px 10px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.diagram-item:hover {
    transform: scale(1.1);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
}

.diagram-item:nth-child(1) {
    top: 20%;
    left: 15%;
}

.diagram-item:nth-child(2) {
    top: 10%;
    right: 15%;
}

.diagram-item:nth-child(3) {
    bottom: 20%;
    right: 15%;
}

.diagram-item:nth-child(4) {
    bottom: 10%;
    left: 15%;
}

.diagram-item:nth-child(5) {
    top: 50%;
    right: 10%;
}

.item-icon {
    font-size: 1.8rem;
    color: var(--primary-color);
    margin-bottom: 5px;
}

.item-text {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--dark-color);
    text-align: center;
}

.diagram-lines {
    position: absolute;
    width: 100%;
    height: 100%;
    z-index: 1;
}

.line {
    position: absolute;
    background-color: rgba(212, 175, 55, 0.2);
    transform-origin: center;
}

.line-1, .line-2, .line-3, .line-4, .line-5 {
    width: 150px;
    height: 3px;
    top: 50%;
    left: 50%;
    margin-top: -1px;
    margin-left: -75px;
}

.line-1 {
    transform: rotate(-45deg) translateX(-50px);
}

.line-2 {
    transform: rotate(45deg) translateX(-50px);
}

.line-3 {
    transform: rotate(135deg) translateX(-50px);
}

.line-4 {
    transform: rotate(225deg) translateX(-50px);
}

.line-5 {
    transform: rotate(0deg) translateX(80px);
}

/* 애니메이션 */
@keyframes pulse {
    0% {
        box-shadow: 0 0 0 0 rgba(212, 175, 55, 0.4);
    }
    70% {
        box-shadow: 0 0 0 15px rgba(212, 175, 55, 0);
    }
    100% {
        box-shadow: 0 0 0 0 rgba(212, 175, 55, 0);
    }
}

/* 반응형 조정 */
@media (max-width: 768px) {
    .project-diagram {
        height: 350px;
    }
    
    .diagram-center {
        width: 100px;
        height: 100px;
    }
    
    .diagram-item {
        width: 80px;
        height: 80px;
    }
    
    .center-icon {
        font-size: 2rem;
    }
    
    .center-text {
        font-size: 1rem;
    }
    
    .item-icon {
        font-size: 1.5rem;
    }
    
    .item-text {
        font-size: 0.8rem;
    }
}

/* 광산 탐사 결과 섹션 */
.exploration-results-section {
    padding: 80px 0;
    background-color: #f8f8f8;
}

.exploration-gallery {
    margin-top: 40px;
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

.gallery-item {
    background-color: #fff;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.gallery-item:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.15);
}

.gallery-image {
    height: 200px;
    overflow: hidden;
}

.gallery-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.gallery-item:hover .gallery-image img {
    transform: scale(1.1);
}

.image-caption {
    padding: 15px;
    font-size: 0.9rem;
    color: #333;
    text-align: center;
    font-weight: 500;
    border-top: 1px solid #eee;
}

.exploration-cta {
    margin-top: 50px;
    text-align: center;
}

/* 반응형 디자인 */
@media (max-width: 1200px) {
    .gallery-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 768px) {
    .gallery-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 576px) {
    .gallery-grid {
        grid-template-columns: 1fr;
    }
    
    .gallery-image {
        height: 180px;
    }
}

/* Mining Videos Section */
.mining-videos-section {
    padding: 80px 0;
    background-color: #f8f8f8;
}

.videos-container {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin-top: 40px;
}

.video-card {
    background-color: #fff;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    overflow: hidden;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.video-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
}

.video-wrapper {
    position: relative;
    width: 100%;
    padding-top: 56.25%; /* 16:9 Aspect Ratio */
    overflow: hidden;
}

.video-wrapper video {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    border: none;
}

.video-info {
    padding: 20px;
}

.video-info h3 {
    font-size: 18px;
    margin-bottom: 10px;
    color: #333;
}

.video-info p {
    font-size: 14px;
    line-height: 1.6;
    color: #666;
}

/* Responsive Adjustments for Videos */
@media (max-width: 1024px) {
    .videos-container {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .videos-container {
        grid-template-columns: 1fr;
    }
    
    .mining-videos-section {
        padding: 60px 0;
    }
}