:root {
    --primary-blue: #0066cc;
    --light-blue: #3399ff;
    --lighter-blue: #60a5fa;
    --very-light-blue: #e6f2ff;
    --accent-blue: #0052a3;
    --white: #ffffff;
    --light-gray: #f8fafc;
    --border-gray: #e2e8f0;
    --text-gray: #475569;
    --text-dark: #1e293b;
    --font-sans: 'Open Sans', sans-serif;
    --font-serif: 'Merriweather', serif;
    --spacing-xs: 0.3rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --shadow-sm: 0 2px 4px rgba(0,0,0,0.06);
    --shadow-md: 0 2px 8px rgba(0,0,0,0.08);
    --shadow-lg: 0 4px 12px rgba(0,0,0,0.1);
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
}

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

body {
    font-family: var(--font-sans);
    font-size: 14px;
    line-height: 1.6;
    color: var(--text-gray);
    background-color: var(--light-gray);
    min-height: 100vh;
}

.skip-link {
    position: absolute;
    top: -40px;
    left: 0;
    background: var(--primary-blue);
    color: var(--white);
    padding: 8px 16px;
    text-decoration: none;
    z-index: 100;
    border-radius: 0 0 4px 0;
    font-size: 14px;
    font-weight: 500;
    transition: top var(--transition-normal);
}

.skip-link:focus {
    top: 0;
    outline: 2px solid var(--white);
    outline-offset: 2px;
}

.header {
    background-color: #2c5f9e;
    color: var(--white);
    padding: 0;
    box-shadow: var(--shadow-md);
}

.header-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.logo {
    width: 480px;
    height: 205px;
    margin-top: 0;
    border-radius: 8px;
    object-fit: contain;
    background-color: transparent;
    padding: 4px;
}

.commemoration-banner {
    background: linear-gradient(135deg, var(--text-dark), var(--text-dark));
    color: var(--white);
    text-align: center;
    padding: 0.6rem;
    font-weight: 600;
    font-size: 1.1rem;
    box-shadow: var(--shadow-sm);
    position: relative;
    overflow: hidden;
}

.commemoration-text {
    position: relative;
    z-index: 1;
    text-shadow: 1px 1px 2px rgba(0,0,0,0.2);
    letter-spacing: 0.5px;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 280px 1fr;
    gap: var(--spacing-xl);
    padding: var(--spacing-xl) var(--spacing-md);
    min-height: calc(100vh - 200px);
}

.sidebar {
    background-color: var(--white);
    border-radius: 8px;
    box-shadow: var(--shadow-md);
    padding: 0;
    height: fit-content;
    border: 1px solid var(--border-gray);
}

.sidebar-menu {
    list-style: none;
    padding-top: 0;
}

.menu-item {
    border-bottom: 1px solid var(--border-gray);
}

.menu-item:last-child {
    border-bottom: none;
}

.menu-link {
    display: block;
    width: 100%;
    padding: 0.8rem 1rem;
    color: var(--text-gray);
    text-decoration: none;
    font-size: 0.85rem;
    background: none;
    border: none;
    text-align: left;
    cursor: pointer;
    font-family: inherit;
    transition: background-color var(--transition-fast), 
                color var(--transition-fast);
    position: relative;
}

.menu-link:hover {
    background-color: var(--very-light-blue);
    color: var(--primary-blue);
}

.menu-link:focus {
    outline: 2px solid var(--primary-blue);
    outline-offset: -2px;
}

.menu-link.active {
    background-color: transparent;
    color: var(--text-gray);
    font-weight: 500;
}

.menu-link.active:hover {
    background-color: var(--very-light-blue);
    color: var(--primary-blue);
}

.menu-link.search-highlight {
    color: var(--accent-blue);
    font-weight: 500;
}

.menu-toggle {
    float: right;
    font-size: 0.7rem;
    transition: transform var(--transition-fast);
}

.menu-toggle.rotated {
    transform: rotate(180deg);
}

.submenu {
    background-color: var(--light-gray);
    display: none;
}

.submenu.show {
    display: block;
}

.submenu-item {
    padding: 0.6rem 1rem 0.6rem 2rem;
    font-size: 0.8rem;
    color: var(--text-gray);
    border-bottom: 1px solid var(--border-gray);
    transition: background-color var(--transition-fast);
}

.submenu-item a {
    color: var(--text-gray);
    text-decoration: none;
    display: block;
    transition: color var(--transition-fast);
}

.submenu-item:hover {
    background-color: var(--white);
}

.submenu-item:hover a {
    color: var(--primary-blue);
}

.submenu-item:last-child {
    border-bottom: none;
}

.main-content {
    background: linear-gradient(135deg, 
        #e6f2ff 0%, 
        #f0f7ff 25%,
        #ffffff 50%,
        #f0f7ff 75%,
        #e6f2ff 100%);
    border-radius: 8px;
    box-shadow: var(--shadow-md);
    overflow: hidden;
    border: 1px solid var(--border-gray);
    position: relative;
}

.main-content::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        radial-gradient(circle at 20% 30%, rgba(96, 165, 250, 0.12) 0%, transparent 50%),
        radial-gradient(circle at 80% 70%, rgba(0, 102, 204, 0.08) 0%, transparent 50%);
    pointer-events: none;
    z-index: 0;
}

.main-content > * {
    position: relative;
    z-index: 1;
}

.content-section,
.search-section,
.casos-section {
    padding: var(--spacing-xl);
}

.search-section {
    background: transparent;
}

.content-section {
    display: grid;
    grid-template-columns: 1fr 240px;
    gap: var(--spacing-xl);
    align-items: start;
}

.text-column {
    min-width: 0;
}

.content-title {
    font-family: var(--font-serif);
    font-size: 1.4rem;
    color: var(--text-dark);
    margin-bottom: 1.2rem;
    font-weight: 600;
    text-align: left;
}

.content-title.centered {
    text-align: center;
    margin-bottom: var(--spacing-lg);
}

.content-text {
    font-size: 0.9rem;
    line-height: 1.7;
    color: var(--text-gray);
    margin-bottom: 1.2rem;
    text-align: justify;
}

.highlight-box {
    background-color: var(--very-light-blue);
    border-left: 4px solid var(--primary-blue);
    padding: 1.2rem;
    margin: var(--spacing-lg) 0;
    border-radius: 0 6px 6px 0;
}

.highlight-box h3,
.highlight-box h2 {
    color: var(--text-dark);
    font-size: 1rem;
    margin-bottom: 0.8rem;
    font-weight: 600;
}

.highlight-box.spaced-top {
    margin-top: var(--spacing-xl);
}

.stats-column {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.stats-column-title {
    font-family: var(--font-serif);
    font-size: 0.95rem;
    color: var(--text-dark);
    margin-bottom: var(--spacing-sm);
    font-weight: 600;
    text-align: center;
}

.stat-item {
    background-color: rgba(255, 255, 255, 0.7);
    padding: var(--spacing-md);
    border-radius: 6px;
    text-align: center;
    border: 1px solid var(--border-gray);
    transition: transform var(--transition-fast),
                box-shadow var(--transition-fast);
}

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

.stat-number {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--primary-blue);
    display: block;
}

.stat-label {
    font-size: 0.75rem;
    color: var(--text-gray);
    margin-top: var(--spacing-xs);
    display: block;
}

.intro-text {
    font-size: 0.95rem;
    line-height: 1.7;
    color: var(--text-gray);
    margin-bottom: var(--spacing-xl);
    text-align: justify;
    padding: var(--spacing-lg);
    background-color: var(--very-light-blue);
    border-radius: 6px;
}

.pais-titulo {
    font-family: var(--font-serif);
    font-size: 1.6rem;
    color: var(--text-dark);
    margin-bottom: var(--spacing-lg);
    font-weight: 600;
    text-align: center;
}

.casos-grid {
    display: grid;
    gap: var(--spacing-lg);
}

.caso-item {
    display: grid;
    grid-template-columns: 200px 1fr;
    gap: var(--spacing-lg);
    background-color: rgba(255, 255, 255, 0.9);
    border-radius: 8px;
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-sm);
    transition: box-shadow var(--transition-fast),
                transform var(--transition-fast);
}

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

.caso-imagen {
    width: 200px;
    height: 250px;
    border-radius: 6px;
    background-color: var(--border-gray);
    overflow: hidden;
}

.caso-imagen img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.caso-contenido h3 {
    font-family: var(--font-serif);
    font-size: 1.1rem;
    color: var(--text-dark);
    margin-bottom: 0.8rem;
    font-weight: 600;
}

.caso-descripcion {
    font-size: 0.9rem;
    line-height: 1.6;
    color: var(--text-gray);
    margin-bottom: var(--spacing-md);
    text-align: justify;
}

.caso-estado {
    display: inline-block;
    padding: 0.3rem 0.8rem;
    border-radius: 4px;
    font-size: 0.75rem;
    font-weight: 600;
    margin-bottom: 0.8rem;
}

.estado-sentencia {
    background-color: #dcfce7;
    color: #166534;
}

.estado-curso {
    background-color: #fef3c7;
    color: #92400e;
}

.caso-link {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    color: var(--primary-blue);
    text-decoration: none;
    font-size: 0.85rem;
    font-weight: 500;
    transition: color var(--transition-fast);
}

.caso-link:hover {
    color: var(--accent-blue);
    text-decoration: underline;
}

.caso-link:focus {
    outline: 2px solid var(--primary-blue);
    outline-offset: 2px;
}

.search-form-column {
    min-width: 0;
}

.search-title {
    font-family: var(--font-serif);
    font-size: 1.4rem;
    color: var(--text-dark);
    margin-bottom: 1.2rem;
    font-weight: 600;
    text-align: center;
}

.search-subtitle {
    font-size: 1rem;
    color: var(--text-gray);
    margin-bottom: var(--spacing-lg);
    font-weight: 500;
    text-align: left;
}

.search-form-container {
    max-width: 100%;
    margin: 0;
}

.form-group {
    margin-bottom: 1.2rem;
    text-align: left;
}

.form-label {
    display: block;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-gray);
    margin-bottom: 0.4rem;
}

.search-input {
    width: 100%;
    padding: 0.7rem var(--spacing-md);
    border: 1px solid var(--border-gray);
    border-radius: 6px;
    font-size: 0.9rem;
    font-family: inherit;
    background-color: var(--white);
    transition: border-color var(--transition-fast),
                box-shadow var(--transition-fast);
}

.search-input:focus {
    outline: none;
    border-color: var(--primary-blue);
    box-shadow: 0 0 0 3px rgba(0, 102, 204, 0.1);
}

.search-select {
    width: 100%;
    padding: 0.7rem;
    border: 1px solid var(--border-gray);
    border-radius: 6px;
    font-size: 0.9rem;
    font-family: inherit;
    background-color: var(--white);
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%23475569' d='M6 9L1 4h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 0.7rem center;
    padding-right: 2.5rem;
    transition: border-color var(--transition-fast),
                box-shadow var(--transition-fast);
}

.search-select:focus {
    outline: none;
    border-color: var(--primary-blue);
    box-shadow: 0 0 0 3px rgba(0, 102, 204, 0.1);
}

.button-group {
    display: flex;
    gap: 0.8rem;
    margin-top: var(--spacing-lg);
    justify-content: center;
}

.button-group .search-button,
.button-group .reset-button {
    padding: 0.65rem 1.5rem;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-size: 0.9rem;
    font-weight: 500;
    font-family: inherit;
    flex: 0 0 auto;
    min-width: 120px;
    max-width: 140px;
    width: auto;
    transition: background-color var(--transition-fast),
                transform var(--transition-fast),
                box-shadow var(--transition-fast);
}

.button-group .search-button {
    background-color: var(--primary-blue);
    color: var(--white);
}

.button-group .search-button:hover:not(:disabled) {
    background-color: var(--accent-blue);
    transform: translateY(-1px);
    box-shadow: 0 4px 8px rgba(0, 102, 204, 0.2);
}

.button-group .search-button:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.button-group .search-button:focus,
.button-group .reset-button:focus {
    outline: 2px solid var(--primary-blue);
    outline-offset: 2px;
}

.button-group .reset-button {
    background-color: var(--light-gray);
    color: var(--text-dark);
    border: 1px solid var(--border-gray);
}

.button-group .reset-button:hover {
    background-color: #e2e8f0;
    border-color: #cbd5e1;
}

.info-box {
    background-color: rgba(255, 255, 255, 0.9);
    border-left: 4px solid var(--primary-blue);
    padding: var(--spacing-md);
    margin-top: var(--spacing-lg);
    border-radius: 0 6px 6px 0;
    text-align: left;
    box-shadow: 0 2px 8px rgba(0, 102, 204, 0.08);
}

.info-box p {
    font-size: 0.85rem;
    color: var(--text-gray);
    margin-bottom: var(--spacing-xs);
    line-height: 1.5;
}

.info-box p:last-child {
    margin-bottom: 0;
}

.info-box strong {
    color: var(--text-dark);
}

.footer {
    background-color: var(--text-dark);
    color: var(--white);
    padding: var(--spacing-xl) var(--spacing-md) var(--spacing-md);
    margin-top: 3rem;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    text-align: center;
    font-size: 0.8rem;
    opacity: 0.8;
}

.footer-links {
    margin-bottom: var(--spacing-md);
}

.footer-links a {
    color: var(--white);
    text-decoration: none;
    margin: 0 var(--spacing-md);
    transition: opacity var(--transition-fast);
}

.footer-links a:hover {
    opacity: 0.7;
}

.footer-links a:focus {
    outline: 2px solid var(--white);
    outline-offset: 2px;
}

@media (max-width: 900px) {
    .container {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
        padding: var(--spacing-md);
    }
    .sidebar {
        order: 2;
    }
    .main-content {
        order: 1;
    }
    .content-section {
        grid-template-columns: 1fr;
    }
    .stats-column {
        order: 2;
    }
    .text-column,
    .search-form-column {
        order: 1;
    }
    .logo {
        margin-bottom: 0.8rem;
        width: 400px;
        height: 170px;
    }
    .commemoration-banner {
        font-size: 1rem;
        padding: var(--spacing-sm);
    }
    .search-title {
        font-size: 1.2rem;
    }
    .search-subtitle {
        font-size: 0.9rem;
    }
    .button-group {
        flex-wrap: wrap;
    }
}

@media (max-width: 768px) {
    .caso-item {
        grid-template-columns: 1fr;
    }
    .caso-imagen {
        width: 100%;
        height: 180px;
    }
    .pais-titulo {
        font-size: 1.4rem;
    }
}

@media (max-width: 600px) {
    .header {
        padding: 0.2rem 0;
    }
    .commemoration-banner {
        font-size: 0.9rem;
        padding: 0.4rem;
    }
    .logo {
        width: 300px;
        height: 128px;
    }
    .button-group .search-button,
    .button-group .reset-button {
        flex: 1 1 100%;
        min-width: 100%;
        max-width: 100%;
    }
    .content-title {
        font-size: 1.2rem;
    }
    .pais-titulo {
        font-size: 1.2rem;
    }
}

.visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    margin: -1px;
    padding: 0;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

.no-js .submenu {
    display: block;
}

@media print {
    .sidebar,
    .skip-link,
    .button-group {
        display: none;
    }
    .container {
        grid-template-columns: 1fr;
    }
    .main-content {
        box-shadow: none;
        border: 1px solid var(--border-gray);
    }
    body {
        background: var(--white);
    }
}