/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Colors */
    --primary-color: #2C5F2D;
    --secondary-color: #97BC62;
    --accent-color: #F4A261;
    --neutral-color: #264653;
    --background-color: #FEFEFE;
    --text-color: #2A2A2A;
    --border-color: #E9ECEF;
    --success-color: #28A745;
    --warning-color: #FFC107;
    --error-color: #DC3545;
    
    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-mono: 'JetBrains Mono', 'Courier New', monospace;
    
    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;
    
    /* Breakpoints */
    --mobile: 768px;
    --tablet: 1024px;
    --desktop: 1200px;
    
    /* Transitions */
    --transition-fast: 200ms ease;
    --transition-normal: 300ms ease;
    --transition-slow: 500ms ease;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
}

body {
    font-family: var(--font-family);
    color: var(--text-color);
    background-color: var(--background-color);
    line-height: 1.6;
    font-size: 16px;
}

/* Container */
.container {
    max-width: var(--desktop);
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

@media (min-width: 768px) {
    .container {
        padding: 0 var(--spacing-xl);
    }
}

/* Header */
.header {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    transition: var(--transition-normal);
}

.header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-md) 0;
    gap: var(--spacing-lg);
}

.logo h1 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 0.125rem;
}

.logo .tagline {
    font-size: 0.75rem;
    color: var(--secondary-color);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.05em;
	padding-left: 15px;
}

.nav {
    display: none;
    gap: var(--spacing-lg);
}

@media (min-width: 768px) {
    .nav {
        display: flex;
    }
}

.nav-link {
    text-decoration: none;
    color: var(--text-color);
    font-weight: 500;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: 6px;
    transition: var(--transition-fast);
    position: relative;
}

.nav-link:hover,
.nav-link.active {
    color: var(--primary-color);
    background-color: rgba(44, 95, 45, 0.1);
}

.search-container {
    display: flex;
    align-items: center;
    background: white;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: var(--spacing-sm);
    min-width: 200px;
    box-shadow: var(--shadow-sm);
}

.search-input {
    border: none;
    outline: none;
    flex: 1;
    padding: var(--spacing-sm);
    font-size: 0.875rem;
}

.search-btn {
    background: none;
    border: none;
    color: var(--text-color);
    cursor: pointer;
    padding: var(--spacing-xs);
    border-radius: 4px;
    transition: var(--transition-fast);
}

.search-btn:hover {
    color: var(--primary-color);
    background-color: rgba(44, 95, 45, 0.1);
}

.mobile-menu-btn {
    display: flex;
    flex-direction: column;
    gap: 4px;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--spacing-sm);
}

@media (min-width: 768px) {
    .mobile-menu-btn {
        display: none;
    }
}

.mobile-menu-btn span {
    width: 20px;
    height: 2px;
    background-color: var(--text-color);
    transition: var(--transition-fast);
}

/* Hero Section */
.hero {
    padding: calc(80px + var(--spacing-3xl)) 0 var(--spacing-3xl);
    background: linear-gradient(135deg, rgba(44, 95, 45, 0.05) 0%, rgba(151, 188, 98, 0.05) 100%);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grid" width="10" height="10" patternUnits="userSpaceOnUse"><path d="M 10 0 L 0 0 0 10" fill="none" stroke="%23E9ECEF" stroke-width="0.5"/></pattern></defs><rect width="100" height="100" fill="url(%23grid)"/></svg>');
    opacity: 0.3;
}

.hero-content {
    position: relative;
    z-index: 1;
    display: grid;
    gap: var(--spacing-2xl);
    align-items: center;
}

@media (min-width: 768px) {
    .hero-content {
        grid-template-columns: 1fr 1fr;
    }
}

.hero-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: var(--spacing-md);
    line-height: 1.2;
}

@media (min-width: 768px) {
    .hero-title {
        font-size: 3.5rem;
    }
}

.hero-description {
    font-size: 1.125rem;
    color: var(--neutral-color);
    margin-bottom: var(--spacing-xl);
    line-height: 1.7;
}

.hero-actions {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

.hero-stats {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
}

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

.stat-card {
    background: white;
    padding: var(--spacing-lg);
    border-radius: 12px;
    text-align: center;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-color);
    transition: var(--transition-normal);
}

.stat-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.stat-number {
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary-color);
    font-family: var(--font-mono);
}

.stat-label {
    font-size: 0.875rem;
    color: var(--neutral-color);
    margin-top: var(--spacing-xs);
    font-weight: 500;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: 8px;
    font-weight: 500;
    text-decoration: none;
    border: none;
    cursor: pointer;
    transition: var(--transition-fast);
    font-size: 0.875rem;
    gap: var(--spacing-sm);
}

.btn-primary {
    background-color: var(--primary-color);
    color: white;
}

.btn-primary:hover {
    background-color: #1e4220;
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.btn-secondary {
    background-color: transparent;
    color: var(--primary-color);
    border: 1px solid var(--primary-color);
}

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

/* Sections */
section {
    padding: var(--spacing-3xl) 0;
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-2xl);
}

.section-title {
    font-size: 2rem;
    font-weight: 600;
    color: var(--primary-color);
    margin-bottom: var(--spacing-md);
}

.section-description {
    font-size: 1.125rem;
    color: var(--neutral-color);
    max-width: 600px;
    margin: 0 auto;
}

/* Categories Grid */
.categories-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
}

.category-card {
    background: white;
    padding: var(--spacing-xl);
    border-radius: 12px;
    text-align: center;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-color);
    transition: var(--transition-normal);
    cursor: pointer;
}

.category-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
    border-color: var(--primary-color);
}

.category-icon {
    width: 48px;
    height: 48px;
    margin: 0 auto var(--spacing-md);
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
}

.category-title {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-color);
    margin-bottom: var(--spacing-sm);
}

.category-count {
    font-size: 0.875rem;
    color: var(--neutral-color);
    font-family: var(--font-mono);
}

/* Datasets Grid */
.datasets-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-lg);
}

.dataset-card {
    background: white;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-color);
    transition: var(--transition-normal);
}

.dataset-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.dataset-header {
    padding: var(--spacing-lg);
    border-bottom: 1px solid var(--border-color);
}

.dataset-title {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-color);
    margin-bottom: var(--spacing-sm);
}

.dataset-description {
    font-size: 0.875rem;
    color: var(--neutral-color);
    line-height: 1.5;
}

.dataset-meta {
    padding: var(--spacing-md) var(--spacing-lg);
    background: rgba(44, 95, 45, 0.02);
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.75rem;
    color: var(--neutral-color);
}

.dataset-category {
    background: var(--secondary-color);
    color: white;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: 4px;
    font-weight: 500;
}

/* Visualizations */
.visualizations {
    background: rgba(44, 95, 45, 0.02);
}

.viz-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--spacing-lg);
}

.viz-card {
    background: white;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-color);
}

.viz-header {
    padding: var(--spacing-lg);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.viz-header h4 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-color);
}

.viz-type {
    font-size: 0.75rem;
    color: var(--neutral-color);
    background: rgba(44, 95, 45, 0.1);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: 4px;
}

.viz-content {
    padding: var(--spacing-lg);
    height: 300px;
}

/* Contribute Section */
.contribute {
    background: linear-gradient(135deg, rgba(44, 95, 45, 0.05) 0%, rgba(151, 188, 98, 0.05) 100%);
}

.contribute-content {
    display: grid;
    gap: var(--spacing-2xl);
    align-items: start;
}

@media (min-width: 768px) {
    .contribute-content {
        grid-template-columns: 1fr 1fr;
    }
}

.contribute-info h4 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--primary-color);
    margin-bottom: var(--spacing-md);
}

.contribute-info ol {
    margin-bottom: var(--spacing-lg);
    padding-left: var(--spacing-lg);
}

.contribute-info li {
    margin-bottom: var(--spacing-sm);
    color: var(--neutral-color);
}

.contribute-actions {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

.upload-area {
    background: white;
    border: 2px dashed var(--border-color);
    border-radius: 12px;
    padding: var(--spacing-2xl);
    text-align: center;
    transition: var(--transition-normal);
    cursor: pointer;
}

.upload-area:hover {
    border-color: var(--primary-color);
    background: rgba(44, 95, 45, 0.02);
}

.upload-icon {
    color: var(--neutral-color);
    margin-bottom: var(--spacing-md);
}

.upload-area p {
    color: var(--neutral-color);
}

.upload-link {
    color: var(--primary-color);
    font-weight: 500;
}

/* Footer */
.footer {
    background: var(--neutral-color);
    color: white;
    padding: var(--spacing-3xl) 0 var(--spacing-lg);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

.footer-section h4,
.footer-section h5 {
    margin-bottom: var(--spacing-md);
    color: white;
}

.footer-section p {
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: var(--spacing-md);
}

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

.footer-section li {
    margin-bottom: var(--spacing-sm);
}

.footer-section a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: var(--transition-fast);
}

.footer-section a:hover {
    color: white;
}

.social-links {
    display: flex;
    gap: var(--spacing-md);
}

.social-links a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 8px;
    transition: var(--transition-fast);
}

.social-links a:hover {
    background: rgba(255, 255, 255, 0.2);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: var(--spacing-lg);
    text-align: center;
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.875rem;
}

.footer-bottom a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in-up {
    animation: fadeInUp 0.6s ease forwards;
}

/* Responsive Design */
@media (max-width: 767px) {
    .hero-title {
        font-size: 2rem;
    }
    
    .section-title {
        font-size: 1.5rem;
    }
    
    .hero-actions {
        justify-content: center;
    }
    
    .btn {
        width: 100%;
        justify-content: center;
    }
    
    .search-container {
        min-width: auto;
        flex: 1;
    }
}

/* Smooth scrolling */
html {
    scroll-behavior: smooth;
}

/* Loading states */
.loading {
    opacity: 0.6;
    pointer-events: none;
}

.loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 20px;
    height: 20px;
    margin: -10px 0 0 -10px;
    border: 2px solid var(--border-color);
    border-top-color: var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

.dataset {padding: calc(80px + var(--spacing-3xl)) 0 var(--spacing-3xl);}

/* Table Styles */
table {
    width: 100%;
    border-collapse: collapse;
    background-color: white;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-color);
    font-family: var(--font-family);
    font-size: 0.875rem;
}

thead {
    background-color: var(--primary-color);
    color: white;
    text-align: left;
}

thead th {
    padding: var(--spacing-md);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border-bottom: 2px solid var(--secondary-color);
}

tbody tr {
    transition: var(--transition-fast);
}

tbody tr:nth-child(even) {
    background-color: rgba(44, 95, 45, 0.02);
}

tbody tr:hover {
    background-color: rgba(44, 95, 45, 0.08);
}

td {
    padding: var(--spacing-md);
    border-bottom: 1px solid var(--border-color);
    color: var(--text-color);
    line-height: 1.5;
}

tfoot {
    background-color: rgba(44, 95, 45, 0.05);
    font-weight: 500;
}

tfoot td {
    padding: var(--spacing-md);
    border-top: 2px solid var(--border-color);
    color: var(--neutral-color);
}

/* Responsive Table */
@media (max-width: 768px) {
    table {
        display: block;
        overflow-x: auto;
        white-space: nowrap;
    }
}

/* Separar la tabla del resto de la web */
#section-table {
    margin: var(--spacing-3xl) 0; /* espacio superior e inferior */
    padding: var(--spacing-xl);
    background-color: rgba(44, 95, 45, 0.02); /* leve fondo para diferenciar */
    border-radius: 12px;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border-color);
}

/* Mejorar lectura de párrafos y encabezados */
#section-content p {
    margin-bottom: var(--spacing-lg);
    line-height: 1.8;
    color: var(--text-color);
    font-size: 1rem;
}

#section-content h1,
#section-content h2,
#section-content h3,
#section-content h4,
#section-content h5,
#section-content h6 {
    margin-top: var(--spacing-2xl);
    margin-bottom: var(--spacing-md);
    color: var(--primary-color);
    font-weight: 600;
    line-height: 1.3;
}

/* Opcional: destacar el primer párrafo tras un título */
#section-content h1 + p,
#section-content h2 + p,
#section-content h3 + p {
    font-size: 1.125rem;
    color: var(--neutral-color);
}

/* Listas no ordenadas y ordenadas */
ul,
ol {
    margin: var(--spacing-lg) 0 var(--spacing-lg) var(--spacing-xl);
    padding: 0;
    line-height: 1.7;
    color: var(--text-color);
    font-size: 1rem;
}

/* Lista no ordenada con viñetas personalizadas */
ul {
    list-style: none;
}

ul li {
    position: relative;
    padding-left: var(--spacing-lg);
    margin-bottom: var(--spacing-sm);
}

ul li::before {
    content: "•";
    position: absolute;
    left: 0;
    color: var(--primary-color);
    font-weight: bold;
}

/* Lista ordenada */
ol {
    list-style: decimal;
    padding-left: var(--spacing-lg);
}

ol li {
    margin-bottom: var(--spacing-sm);
}

/* Listas anidadas */
ul ul,
ol ol,
ul ol,
ol ul {
    margin-top: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
    margin-left: var(--spacing-lg);
    font-size: 0.95rem;
}

/* Enlaces dentro de listas */
li a {
    color: var(--primary-color);
    text-decoration: none;
    transition: var(--transition-fast);
}

li a:hover {
    color: var(--secondary-color);
    text-decoration: underline;
}

.dataset-title a {
    color: var(--text-color);
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition-fast);
}

.dataset-title a:hover {
    color: var(--primary-color);
    text-decoration: underline;
}