:root {
    --primary-color: #2c5f4f;
    --primary-dark: #1a4838;
    --accent-color: #d4af37;
    --accent-light: #f0d98c;
    --bg-primary: #ffffff;
    --bg-secondary: #f5f7fa;
    --text-primary: #1a1a1a;
    --text-secondary: #666666;
    --border-color: #e0e0e0;
    --shadow-sm: 0 2px 5px rgba(0,0,0,0.05);
    --shadow-md: 0 4px 15px rgba(0,0,0,0.1);
    --shadow-lg: 0 10px 40px rgba(0,0,0,0.15);
}

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

body {
    font-family: 'Noto Sans KR', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background: var(--bg-secondary);
    overflow-x: hidden;
}

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

.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: linear-gradient(135deg, rgba(44, 95, 79, 0.98) 0%, rgba(26, 72, 56, 0.98) 100%);
    backdrop-filter: blur(20px);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
    z-index: 1000;
    transition: all 0.3s ease;
    border-bottom: 2px solid rgba(212, 175, 55, 0.3);
}

.nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 40px;
    max-width: 1400px;
    margin: 0 auto;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    transition: all 0.3s ease;
}

.logo-icon {
    width: 55px;
    height: 55px;
    object-fit: contain;
    filter: drop-shadow(0 2px 8px rgba(44, 95, 79, 0.3));
    transition: all 0.3s ease;
}

.nav-logo:hover .logo-icon {
    transform: scale(1.08) translateY(-2px);
    filter: drop-shadow(0 4px 12px rgba(44, 95, 79, 0.5));
}

.logo-text {
    font-size: 1.8rem;
    font-weight: 800;
    background: linear-gradient(135deg, #ffffff 0%, #d4af37 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: -0.5px;
    text-shadow: 0 2px 8px rgba(255, 255, 255, 0.3);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 45px;
    align-items: center;
}

.nav-link {
    color: rgba(255, 255, 255, 0.9);
    text-decoration: none;
    font-weight: 600;
    font-size: 1.1rem;
    position: relative;
    transition: all 0.3s ease;
    padding: 10px 18px;
    border-radius: 8px;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 2px;
    left: 16px;
    width: 0;
    height: 2px;
    background: var(--accent-color);
    transition: width 0.3s ease;
    box-shadow: 0 0 10px rgba(212, 175, 55, 0.6);
}

.nav-link:hover {
    color: #ffffff;
    background: rgba(255, 255, 255, 0.1);
    transform: translateY(-2px);
}

.nav-link:hover::after {
    width: calc(100% - 32px);
}

.nav-link.admin-link {
    color: #ffffff;
    font-weight: 700;
    background: linear-gradient(135deg, rgba(212, 175, 55, 0.3), rgba(212, 175, 55, 0.2));
    border: 1px solid rgba(212, 175, 55, 0.5);
    box-shadow: 0 2px 8px rgba(212, 175, 55, 0.3);
}

.nav-link.admin-link:hover {
    background: linear-gradient(135deg, rgba(212, 175, 55, 0.5), rgba(212, 175, 55, 0.3));
    border-color: rgba(212, 175, 55, 0.8);
    box-shadow: 0 4px 16px rgba(212, 175, 55, 0.5);
}

.nav-link.admin-link i {
    margin-right: 6px;
    color: #d4af37;
}

.theme-toggle {
    background: var(--bg-secondary);
    border: none;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
}

.theme-toggle:hover {
    background: var(--primary-color);
    color: white;
    transform: rotate(20deg);
}

.section {
    padding: 80px 20px;
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--primary-color);
    margin-bottom: 15px;
}

.section-description {
    font-size: 1.1rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 14px 32px;
    border: none;
    border-radius: 12px;
    font-size: 1.05rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent-color) 0%, var(--accent-light) 100%);
    color: var(--primary-dark);
    box-shadow: 0 4px 15px rgba(212, 175, 55, 0.3);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(212, 175, 55, 0.5);
}

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

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

.btn-test {
    width: 100%;
    background: linear-gradient(135deg, var(--accent-color) 0%, var(--accent-light) 100%);
    color: var(--primary-dark);
    padding: 14px 24px;
    border: none;
    border-radius: 10px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn-test:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(212, 175, 55, 0.4);
}

.test-search {
    position: relative;
    max-width: 600px;
    margin: 0 auto 30px;
}

.test-search input {
    width: 100%;
    padding: 16px 50px 16px 20px;
    border: 2px solid var(--border-color);
    border-radius: 12px;
    font-size: 1rem;
    transition: all 0.3s ease;
}

.test-search input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(44, 95, 79, 0.1);
}

.test-search i {
    position: absolute;
    right: 20px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-secondary);
}

.test-filters {
    display: flex;
    gap: 15px;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 40px;
}

.filter-btn {
    padding: 12px 24px;
    border: 2px solid var(--border-color);
    background: white;
    color: var(--text-secondary);
    border-radius: 25px;
    font-size: 0.95rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 8px;
}

.filter-btn:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
    transform: translateY(-2px);
}

.filter-btn.active {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    color: white;
    border-color: transparent;
}

.tests-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.test-card {
    background: white;
    border-radius: 20px;
    padding: 30px;
    box-shadow: var(--shadow-md);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.test-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 5px;
    background: linear-gradient(90deg, var(--primary-color) 0%, var(--accent-color) 100%);
}

.test-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
}

.test-badge-hot,
.test-badge {
    position: absolute;
    top: 20px;
    right: 20px;
    padding: 6px 14px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
}

.test-badge-hot {
    background: linear-gradient(135deg, #ff6b6b 0%, #ee5a6f 100%);
    color: white;
    animation: pulse 2s infinite;
}

.test-badge {
    background: linear-gradient(135deg, var(--accent-color) 0%, var(--accent-light) 100%);
    color: var(--primary-dark);
}

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.05); }
}

.test-icon {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
    font-size: 2rem;
    color: var(--accent-color);
    box-shadow: 0 4px 15px rgba(44, 95, 79, 0.2);
}

.test-title {
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 12px;
}

.test-description {
    color: var(--text-secondary);
    margin-bottom: 20px;
    line-height: 1.6;
}

.test-stats {
    display: flex;
    gap: 20px;
    margin-bottom: 15px;
}

.test-stat-item {
    flex: 1;
    text-align: center;
}

.test-stat-number {
    font-weight: 700;
    color: var(--accent-color);
    font-size: 1.1rem;
}

.test-stat-label {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-top: 3px;
}

.test-info {
    display: flex;
    gap: 15px;
    margin-bottom: 20px;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.test-info span {
    display: flex;
    align-items: center;
    gap: 5px;
}

.test-review {
    background: var(--bg-secondary);
    border-radius: 12px;
    padding: 15px;
    margin-bottom: 20px;
}

.test-review-stars {
    color: var(--accent-color);
    margin-bottom: 8px;
}

.test-review-text {
    font-size: 0.9rem;
    color: var(--text-primary);
    line-height: 1.5;
    margin-bottom: 5px;
}

.test-review-author {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.pricing {
    background: var(--bg-secondary);
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    max-width: 1200px;
    margin: 0 auto;
}

.pricing-card {
    background: white;
    border-radius: 20px;
    padding: 40px 30px;
    box-shadow: var(--shadow-md);
    transition: all 0.3s ease;
    position: relative;
}

.pricing-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
}

.pricing-card.featured {
    border: 3px solid var(--primary-color);
    transform: scale(1.05);
}

.pricing-badge {
    position: absolute;
    top: -15px;
    right: 30px;
    background: linear-gradient(135deg, var(--accent-color) 0%, var(--accent-light) 100%);
    color: var(--primary-dark);
    padding: 8px 20px;
    border-radius: 20px;
    font-weight: 600;
    font-size: 0.9rem;
}

.pricing-name {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 20px;
}

.pricing-price {
    margin-bottom: 30px;
}

.price-amount {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--primary-color);
}

.price-period {
    font-size: 1rem;
    color: var(--text-secondary);
}

.pricing-features {
    list-style: none;
    margin-bottom: 30px;
}

.pricing-features li {
    padding: 12px 0;
    display: flex;
    align-items: center;
    gap: 10px;
    border-bottom: 1px solid var(--border-color);
}

.pricing-features li:last-child {
    border-bottom: none;
}

.pricing-features i {
    color: var(--primary-color);
}

.pricing-features li.disabled {
    opacity: 0.4;
}

.pricing-features li.disabled i {
    color: var(--text-secondary);
}

.btn-pricing {
    width: 100%;
    padding: 14px 24px;
    border: none;
    border-radius: 12px;
    font-size: 1.05rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    background: linear-gradient(135deg, var(--accent-color) 0%, var(--accent-light) 100%);
    color: var(--primary-dark);
}

.btn-pricing:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(212, 175, 55, 0.4);
}

.btn-pricing.featured {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    color: white;
}

.statistics {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    color: white;
    position: relative;
    overflow: hidden;
}

.statistics::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 20% 50%, rgba(212, 175, 55, 0.1) 0%, transparent 50%),
                radial-gradient(circle at 80% 80%, rgba(212, 175, 55, 0.1) 0%, transparent 50%);
}

.statistics .container {
    position: relative;
    z-index: 1;
}

.statistics .section-title,
.statistics .section-description {
    color: white;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin-bottom: 60px;
}

.stat-card {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border-radius: 20px;
    padding: 30px;
    text-align: center;
    transition: all 0.3s ease;
}

.stat-card:hover {
    background: rgba(255, 255, 255, 0.15);
    transform: translateY(-5px);
}

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

.stat-number {
    font-size: 2.75rem;
    font-weight: 800;
    color: var(--accent-color);
    margin-bottom: 8px;
    text-shadow: 0 2px 10px rgba(0,0,0,0.2);
}

.stat-label {
    font-size: 1rem;
    opacity: 0.9;
}

.stat-content {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.charts-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 30px;
}

.chart-card {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border-radius: 20px;
    padding: 30px;
}

.chart-card h3 {
    color: white;
    margin-bottom: 20px;
    font-size: 1.3rem;
}

.reviews {
    padding: 80px 20px;
}

.reviews-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 30px;
}

.review-card {
    background: white;
    border-radius: 20px;
    padding: 30px;
    box-shadow: var(--shadow-md);
    transition: all 0.3s ease;
}

.review-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.review-header {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 20px;
}

.review-avatar {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--accent-color) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 700;
    font-size: 1.3rem;
}

.review-user {
    flex: 1;
}

.review-name {
    color: var(--primary-color);
    font-weight: 600;
    margin-bottom: 5px;
}

.review-info h4 {
    color: var(--primary-color);
    font-weight: 600;
    margin-bottom: 5px;
}

.review-stars {
    color: var(--accent-color);
}

.review-text {
    color: var(--text-primary);
    line-height: 1.7;
    margin-bottom: 15px;
}

.review-footer {
    display: flex;
    justify-content: space-between;
    font-size: 0.9rem;
    color: var(--text-secondary);
    padding-top: 15px;
    border-top: 1px solid var(--border-color);
}

.review-test {
    background: var(--bg-secondary);
    padding: 5px 12px;
    border-radius: 15px;
    font-weight: 500;
}

.review-date {
    color: var(--text-secondary);
}

.footer {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    color: white;
    padding: 60px 20px 30px;
    position: relative;
}

.footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 30% 50%, rgba(212, 175, 55, 0.1) 0%, transparent 50%);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    max-width: 1200px;
    margin: 0 auto 40px;
    position: relative;
    z-index: 1;
}

.footer-section {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(212, 175, 55, 0.2);
    border-radius: 16px;
    padding: 30px;
    transition: all 0.3s ease;
}

.footer-section:hover {
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(212, 175, 55, 0.4);
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.footer-section h4 {
    color: #d4af37;
    font-size: 1rem;
    margin-bottom: 20px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    padding-bottom: 10px;
    border-bottom: 2px solid rgba(212, 175, 55, 0.3);
}

.footer-section p {
    color: rgba(255, 255, 255, 0.85);
    line-height: 1.8;
    margin-bottom: 10px;
    font-size: 0.95rem;
}

.footer-section ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.footer-section ul li {
    margin-bottom: 12px;
}

.footer-section ul li a {
    color: rgba(255, 255, 255, 0.75);
    text-decoration: none;
    transition: all 0.3s ease;
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    gap: 8px;
}

.footer-section ul li a::before {
    content: '→';
    color: #d4af37;
    opacity: 0;
    transform: translateX(-10px);
    transition: all 0.3s ease;
}

.footer-section ul li a:hover {
    color: #d4af37;
}

.footer-section ul li a:hover::before {
    opacity: 1;
    transform: translateX(0);
}

.footer-tagline {
    font-style: italic;
    opacity: 0.9;
    color: #d4af37;
    margin-bottom: 15px;
    font-size: 0.95rem;
}

.company-info {
    margin-top: 20px;
}

.company-info p {
    font-size: 0.85rem;
    margin-bottom: 6px;
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.6;
}

.company-info strong {
    color: #d4af37;
    font-weight: 600;
    display: block;
    margin-bottom: 8px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 20px;
}

.footer-logo img {
    width: 55px;
    height: 55px;
    object-fit: contain;
    filter: drop-shadow(0 2px 8px rgba(212, 175, 55, 0.4));
}

.footer-logo span {
    color: #d4af37;
    font-size: 1.6rem;
    font-weight: 700;
    background: linear-gradient(135deg, #d4af37 0%, #f0d98c 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: 12px;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: all 0.3s ease;
}

.footer-links a:hover {
    color: var(--accent-color);
    padding-left: 5px;
}

.social-links {
    display: flex;
    gap: 12px;
    margin-top: 20px;
}

.social-links a {
    width: 50px;
    height: 50px;
    border-radius: 12px;
    background: rgba(212, 175, 55, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #d4af37;
    text-decoration: none;
    transition: all 0.3s ease;
    border: 2px solid rgba(212, 175, 55, 0.3);
    font-size: 1.2rem;
}

.social-links a:hover {
    background: #d4af37;
    color: #1a4838;
    transform: translateY(-5px) scale(1.05);
    box-shadow: 0 8px 20px rgba(212, 175, 55, 0.5);
    border-color: #d4af37;
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 30px;
    border-top: 2px solid rgba(212, 175, 55, 0.2);
    flex-wrap: wrap;
    gap: 20px;
}

.footer-bottom p {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.9rem;
    margin: 0;
}

.footer-bottom .social-links {
    margin-top: 0;
}

.ai-recommendation {
    background: linear-gradient(135deg, rgba(44, 95, 79, 0.05) 0%, rgba(212, 175, 55, 0.05) 100%);
    border: 2px solid var(--border-color);
    border-radius: 20px;
    padding: 30px;
    margin-bottom: 40px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 30px;
}

.ai-recommendation-content {
    display: flex;
    align-items: center;
    gap: 20px;
}

.ai-recommendation-actions {
    flex-shrink: 0;
}

.ai-recommendation i {
    font-size: 3rem;
    color: var(--primary-color);
}

.ai-recommendation h3 {
    color: var(--primary-color);
    font-size: 1.3rem;
    margin-bottom: 5px;
}

.ai-recommendation p {
    color: var(--text-secondary);
    margin: 0;
}

.tests {
    padding: 60px 20px;
    background: var(--bg-secondary);
}

@media (max-width: 768px) {
    .nav-menu {
        display: none;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .tests-grid {
        grid-template-columns: 1fr;
    }
    
    .pricing-card.featured {
        transform: scale(1);
    }
    
    .charts-container {
        grid-template-columns: 1fr;
    }
    
    .ai-recommendation {
        flex-direction: column;
        text-align: center;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
    }
}