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

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
}

body {
    font-family: 'Roboto', Arial, sans-serif;
    background-color: #E8ECE9;
    color: #333333;
    line-height: 1.6;
}

.container {
    max-width: 1000px;
    margin: 0 auto;
    padding: 0 20px;
}

header {
    background-color: #2C4C3B;
    color: #FFFFFF;
    padding: 40px 0;
    text-align: center;
}

header h1 {
    font-size: 2.2rem;
    margin-bottom: 5px;
}

header .en-title {
    font-size: 1.2rem;
    font-weight: 300;
    font-style: italic;
    opacity: 0.9;
    margin-bottom: 20px;
}

.header-info {
    margin-top: 35px;
    padding-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.2);
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 10px 35px;
    font-size: 1.05rem;
    font-weight: 300;
}

.header-info p {
    margin: 0;
}

.header-info strong {
    font-weight: 700;
    color: rgba(255, 255, 255, 0.7);
    margin-right: 5px;
}

nav {
    background-color: #1A2E24;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
}

nav ul {
    list-style-type: none;
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
}

nav ul li a {
    display: block;
    color: #FFFFFF;
    text-align: center;
    padding: 15px 20px;
    text-decoration: none;
    font-weight: bold;
    transition: background-color 0.3s ease;
}

nav ul li a:hover {
    background-color: #5C832F;
}

main {
    padding: 40px 20px;
}

.card {
    background-color: #FFFFFF;
    padding: 30px;
    margin-bottom: 30px;
    border-radius: 8px;
    border-top: 5px solid #2C4C3B;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
}

.card h2 {
    color: #2C4C3B;
    border-bottom: 2px solid #E8ECE9;
    padding-bottom: 10px;
    margin-bottom: 20px;
}

.card h3 {
    color: #5C832F;
    margin-top: 25px;
    margin-bottom: 10px;
}

.card p {
    margin-bottom: 15px;
}

.methodology-grid {
    display: flex;
    gap: 20px;
    margin: 20px 0;
}

.method-box {
    flex: 1;
    padding: 20px;
    border-radius: 8px;
    color: white;
}

.method-box h3 {
    color: white;
    margin-top: 0;
    border-bottom: 1px solid rgba(255,255,255,0.3);
    padding-bottom: 10px;
}

.method-box ul {
    margin-left: 20px;
}

.box-p1 {
    background-color: #C0504D;
}

.box-p2 {
    background-color: #5C832F;
}

.responsive-img {
    max-width: 100%;
    height: auto;
    display: block;
    margin: 0 auto;
    border-radius: 4px;
}

.map-figure img {
    max-width: 600px;
    width: 100%;
}

.shadow {
    box-shadow: 0 4px 8px rgba(0,0,0,0.1);
    border: 1px solid #E8ECE9;
}

.map-figure {
    margin: 30px 0;
    text-align: center;
}

.map-figure figcaption {
    font-style: italic;
    color: #666666;
    margin-top: 10px;
    font-size: 0.9rem;
}

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

.download-buttons {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-top: 20px;
    flex-wrap: wrap;
}

.btn {
    display: inline-block;
    padding: 15px 25px;
    text-decoration: none;
    font-weight: bold;
    border-radius: 5px;
    transition: transform 0.2s, background-color 0.3s;
}

.btn:hover {
    transform: translateY(-3px);
}

.btn-primary {
    background-color: #2C4C3B;
    color: white;
}

.btn-primary:hover {
    background-color: #1A2E24;
}

footer {
    background-color: #333333;
    color: white;
    text-align: center;
    padding: 30px 0;
    margin-top: 20px;
}

.table-responsive {
    overflow-x: auto;
    margin: 20px 0;
    box-shadow: 0 2px 5px rgba(0,0,0,0.05);
    border-radius: 8px;
}

.comparison-table {
    width: 100%;
    border-collapse: collapse;
    background-color: #f9f9f9;
    min-width: 600px;
}

.comparison-table thead tr {
    background-color: #2C4C3B;
    color: white;
    text-align: left;
}

.comparison-table th,
.comparison-table td {
    padding: 12px;
    border: 1px solid #ddd;
}

.comparison-table .group-p1 td {
    background-color: #ffffff;
}

.comparison-table .col-bold {
    font-weight: bold;
}

@media (max-width: 768px) {
    .methodology-grid {
        flex-direction: column;
    }
    
    header h1 {
        font-size: 1.8rem;
    }
    
    nav ul {
        flex-direction: column;
    }
    
    .download-buttons {
        flex-direction: column;
    }
    
    .card {
        padding: 20px;
    }
}