:root {
    --primary-green: #03C75A;
    --primary-green-light: #1DD875;
    --primary-green-dark: #00A651;
    --secondary-green: #E8FFF2;
    --accent-green: #00C851;
    --text-dark: #2C3E50;
    --text-light: #7F8C8D;
    --border-light: #E5E7EB;
    --background-light: #F8F9FA;
    --white: #FFFFFF;
    --shadow-sm: 0 2px 4px rgba(0,0,0,0.06);
    --shadow-md: 0 4px 12px rgba(0,0,0,0.08);
    --shadow-lg: 0 8px 25px rgba(0,0,0,0.12);
}

body {
    font-family: 'Pretendard', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', sans-serif;
    color: var(--text-dark);
    line-height: 1.6;
    background: linear-gradient(135deg, #F8F9FA 0%, #F0F8F0 100%);
    min-height: 100vh;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-green) 0%, var(--primary-green-light) 100%);
    border: none;
    border-radius: 12px;
    padding: 12px 24px;
    font-weight: 600;
    letter-spacing: -0.3px;
    transition: all 0.3s ease;
    box-shadow: var(--shadow-sm);
}

.btn-primary:hover {
    background: #1e7e34;
    border-color: #1e7e34;
    transform: translateY(-1px);
}

.btn-secondary {
    background: var(--white);
    border: 2px solid var(--border-light);
    color: var(--text-dark);
    border-radius: 12px;
    padding: 12px 24px;
    font-weight: 600;
    letter-spacing: -0.3px;
    transition: all 0.3s ease;
}

.btn-secondary:hover {
    background: var(--secondary-green);
    border-color: var(--primary-green);
    color: var(--text-dark);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(40, 199, 111, 0.15);
}

.article-card {
    transition: all 0.3s ease;
    border: 1px solid var(--border-light);
    border-radius: 16px;
    background: var(--white);
    box-shadow: 0 2px 8px rgba(3, 199, 90, 0.08);
    overflow: hidden;
    margin-bottom: 16px;
    display: flex;
    flex-wrap: wrap;
    align-items: stretch;
}

.article-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(3, 199, 90, 0.15);
    border-color: var(--primary-green);
}

.article-card:hover .article-thumbnail {
    transform: scale(1.05);
}

.article-thumbnail-container {
    flex: 0 0 300px;
    position: relative;
    overflow: hidden;
    background: linear-gradient(135deg, var(--secondary-green) 0%, #F0FFF0 100%);
    display: flex;
    align-items: center;
    justify-content: center;
}

.corporation-card {
    transition: all 0.3s ease;
    border: 2px solid var(--border-light);
    background: var(--white);
    box-shadow: 0 4px 20px rgba(40, 199, 111, 0.08);
    margin-bottom: 24px;
}

.corporation-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 40px rgba(40, 199, 111, 0.15);
    border-color: var(--primary-green);
}

.company-avatar {
    width: 64px;
    height: 64px;
    border-radius: 18px;
    background: var(--secondary-green);
    display: flex;
    align-items: center;
    justify-content: center;
    border: 2px solid var(--border-light);
    transition: all 0.3s ease;
}

.corporation-card:hover .company-avatar {
    border-color: var(--primary-green);
    background: linear-gradient(135deg, var(--secondary-green) 0%, rgba(3, 199, 90, 0.1) 100%);
}

.articles-container, .articles-list-container {
    max-width: 800px;
    margin: 0 auto;
}

@media (max-width: 768px) {
    .article-card {
        flex-direction: column;
    }
    
    .article-thumbnail-container {
        flex: none;
        height: 200px;
        order: 0;
    }
    
    .article-content {
        padding: 16px;
        order: 2;
    }
    
    .article-thumbnail {
        height: 180px;
        border-radius: 0;
    }
}

.article-thumbnail {
    height: 155.22px;
    width: 100%;
    object-fit: cover;
    object-position: center;
    background: var(--primary-green);
    transition: transform 0.3s ease;
    display: block;
    border-radius: 8px;
}

.article-content {
    flex: 1;
    padding: 24px;
    display: flex;
    flex-direction: column;
    order: 1;
    min-width: 0;
}

.company-logo {
    width: 36px;
    height: 36px;
    object-fit: contain;
    border-radius: 10px;
    border: 1px solid var(--border-light);
    background: var(--white);
    padding: 2px;
}

.tag-badge {
    font-size: 0.75rem;
    background: var(--secondary-green) !important;
    color: var(--primary-green-dark) !important;
    border-radius: 20px;
    padding: 4px 12px;
    font-weight: 500;
}

.reading-time {
    color: var(--text-light);
    font-size: 0.875rem;
    font-weight: 500;
}

.navbar {
    background: var(--white) !important;
    box-shadow: var(--shadow-sm);
    padding: 16px 0;
}

.navbar-brand {
    font-weight: 800;
    font-size: 1.75rem;
    color: var(--primary-green) !important;
    letter-spacing: -0.5px;
    transform: skewX(-10deg);
}

.nav-link {
    font-weight: 600;
    color: var(--text-dark) !important;
    padding: 8px 16px !important;
    border-radius: 8px;
    transition: all 0.2s ease;
}

.nav-link:hover {
    background: var(--secondary-green);
    color: var(--primary-green-dark) !important;
}

.nav-tabs {
    border: none;
    justify-content: center;
    gap: 8px;
}

.nav-tabs .nav-link {
    border: none;
    border-radius: 25px;
    padding: 12px 24px;
    background: var(--white);
    color: var(--text-light);
    font-weight: 600;
    transition: all 0.3s ease;
    box-shadow: var(--shadow-sm);
}

.nav-tabs .nav-link.active {
    background: linear-gradient(135deg, var(--primary-green) 0%, var(--primary-green-light) 100%);
    color: var(--white) !important;
    box-shadow: var(--shadow-md);
}

.nav-tabs .nav-link:hover {
    background: var(--secondary-green);
    color: var(--primary-green-dark);
}

.card {
    border: none;
    border-radius: 16px;
    box-shadow: var(--shadow-sm);
    transition: all 0.3s ease;
    max-width: 800px;
    margin: 0 auto;
}

.card:hover {
    box-shadow: var(--shadow-md);
}

.form-control {
    border: 2px solid var(--border-light);
    border-radius: 12px;
    padding: 12px 16px;
    font-size: 1rem;
    transition: all 0.3s ease;
}

.form-control:focus {
    border-color: var(--primary-green);
    box-shadow: 0 0 0 0.2rem rgba(40, 199, 111, 0.25);
}

.table {
    border-radius: 16px;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    background: var(--white);
}

.table thead th {
    background: var(--secondary-green);
    color: var(--primary-green-dark);
    font-weight: 700;
    border: none;
    padding: 16px;
}

.table tbody td {
    padding: 16px;
    border-color: var(--border-light);
    vertical-align: middle;
}

.pagination {
    gap: 8px;
}

.page-link {
    border: none;
    border-radius: 12px;
    padding: 12px 16px;
    color: var(--text-dark);
    background: var(--white);
    box-shadow: var(--shadow-sm);
    font-weight: 600;
    transition: all 0.3s ease;
}

.page-link:hover {
    background: var(--secondary-green);
    color: var(--primary-green-dark);
}

.page-item.active .page-link {
    background: linear-gradient(135deg, var(--primary-green) 0%, var(--primary-green-light) 100%);
    color: var(--white);
    box-shadow: var(--shadow-md);
}

.alert {
    border: none;
    border-radius: 12px;
    padding: 16px 20px;
    font-weight: 600;
}

.alert-success {
    background: var(--secondary-green);
    color: var(--primary-green-dark);
}

.alert-danger {
    background: #FEF2F2;
    color: #DC2626;
}

.hero-section {
    background: linear-gradient(135deg, var(--secondary-green) 0%, #F0F8F0 100%);
    border-radius: 24px;
    padding: 24px 32px;
    margin-bottom: 48px;
    text-align: center;
    border: 1px solid rgba(40, 199, 111, 0.1);
    height: 33vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    position: relative;
    overflow: hidden;
}

.card-separator {
    height: 1px;
    background: linear-gradient(90deg, transparent 0%, var(--border-light) 50%, transparent 100%);
    margin: 20px 0;
}

.article-card .card-body {
    position: relative;
}

.article-card .card-body::before {
    content: '';
    position: absolute;
    top: -1px;
    left: 20px;
    right: 20px;
    height: 1px;
    background: linear-gradient(90deg, transparent 0%, var(--border-light) 50%, transparent 100%);
}

.hero-title {
    font-size: 2rem;
    font-weight: 800;
    color: #03C75A;
    margin-bottom: 12px;
    letter-spacing: -1px;
    transform: skewX(-10deg);
}

.hero-subtitle {
    font-size: 1.1rem;
    color: var(--text-light);
    font-weight: 500;
    margin-bottom: 20px;
}

.stats-card {
    background: var(--white);
    border-radius: 16px;
    padding: 16px;
    text-align: center;
    box-shadow: var(--shadow-sm);
    transition: all 0.3s ease;
}

.stats-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.stats-number {
    font-size: 1.6rem;
    font-weight: 800;
    color: var(--primary-green);
    display: block;
}

.stats-label {
    color: var(--text-light);
    font-weight: 600;
    margin-top: 8px;
}

.footer {
    background: var(--white) !important;
    border-top: 1px solid var(--border-light);
    padding: 32px 0;
    margin-top: 64px;
}

.company-logo {
    transition: all 0.2s ease;
    opacity: 1;
}

.comapny-logo:hover {
    opacity: 0.7;
    transform: translateY(-4px);
}

.more-corporation-articles {
    transition: all 0.2s ease;
    order: 4;
    display: flex; 
    justify-content: center;
    align-items: center;
    flex-basis: 100%;
    padding-bottom: 20px;
}

.more-corporation-articles:hover {
    opacity: 0.7;
    transform: translateY(-4px);
}