/* ==================== HARVARD UNIVERSITY STYLE - ISTS ==================== */
/* Réplica exacta del diseño de Harvard.edu para ISTS */

/* Importar fuentes de Google */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&display=swap');

/* Variables específicas para Harvard Style */
:root {
    /* Colores Harvard */
    --harvard-crimson: #A51C30;
    --harvard-dark: #1E1E1E;
    --harvard-gray: #6B6B6B;
    --harvard-light-gray: #F5F5F5;
    --harvard-white: #FFFFFF;
    
    /* Colores ISTS adaptados */
    --ists-primary: #00A86B;
    --ists-secondary: #1E3A8A;
    --ists-accent: #F59E0B;
    
    /* Tipografía Harvard */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-size-base: 16px;
    --line-height-base: 1.6;
    
    /* Espaciado Harvard */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-xxl: 4rem;
    
    /* Transiciones */
    --transition: all 0.3s ease;
}

/* ==================== LAYOUT PRINCIPAL ==================== */
body {
    font-family: var(--font-primary);
    font-size: var(--font-size-base);
    line-height: var(--line-height-base);
    color: var(--harvard-dark);
    background: var(--harvard-white);
    margin: 0;
    padding: 0;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-sm);
}

/* ==================== FOCUS SECTION - HARVARD STYLE ==================== */
.focus-section {
    padding: 2rem 0 0.5rem 0;
    background: var(--harvard-white);
}

.focus-header {
    text-align: center;
    margin-bottom: 1.5rem;
}

.focus-header h2 {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--harvard-dark);
    margin-bottom: var(--spacing-sm);
    letter-spacing: -0.02em;
}

.focus-header p {
    font-size: 1.125rem;
    color: var(--harvard-gray);
    max-width: 600px;
    margin: 0 auto;
}

.focus-main {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: var(--spacing-xl);
    align-items: start;
}

.focus-featured {
    background: var(--harvard-white);
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    transition: var(--transition);
}

.focus-featured:hover {
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.15);
    transform: translateY(-2px);
}

.focus-image {
    position: relative;
    overflow: hidden;
}

.focus-image img {
    width: 100%;
    height: 300px;
    object-fit: cover;
    transition: var(--transition);
}

.focus-featured:hover .focus-image img {
    transform: scale(1.05);
}

.focus-content {
    padding: var(--spacing-lg);
}

.focus-content h3 {
    font-size: 1.75rem;
    font-weight: 600;
    color: var(--harvard-dark);
    margin-bottom: var(--spacing-sm);
    line-height: 1.3;
}

.focus-content p {
    font-size: 1rem;
    color: var(--harvard-gray);
    margin-bottom: var(--spacing-md);
    line-height: 1.6;
}

.focus-actions {
    margin-top: var(--spacing-md);
}

.focus-sidebar {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.focus-item {
    background: var(--harvard-white);
    padding: var(--spacing-lg);
    border-radius: 8px;
    border-left: 4px solid var(--ists-primary);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    transition: var(--transition);
}

.focus-item:hover {
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.15);
    transform: translateX(4px);
}

.focus-item h4 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--harvard-dark);
    margin-bottom: var(--spacing-sm);
}

.focus-item p {
    font-size: 0.9rem;
    color: var(--harvard-gray);
    margin-bottom: var(--spacing-sm);
    line-height: 1.5;
}

/* ==================== BOTONES HARVARD STYLE ==================== */
.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    border-radius: 4px;
    text-decoration: none;
    font-weight: 500;
    font-size: 0.9rem;
    transition: var(--transition);
    border: 1px solid transparent;
    cursor: pointer;
    text-align: center;
}

.btn-outline {
    background: transparent;
    color: var(--ists-primary);
    border-color: var(--ists-primary);
}

.btn-outline:hover {
    background: var(--ists-primary);
    color: var(--harvard-white);
    transform: translateY(-1px);
}

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

.btn-primary:hover {
    background: var(--ists-secondary);
    border-color: var(--ists-secondary);
    transform: translateY(-1px);
}

/* ==================== PROGRAMS SECTION - HARVARD STYLE ==================== */
.programs-section {
    padding: var(--spacing-xxl) 0;
    background: var(--harvard-light-gray);
}

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

.section-header h2 {
    font-size: 2.25rem;
    font-weight: 700;
    color: var(--harvard-dark);
    margin-bottom: var(--spacing-sm);
}

.section-header p {
    font-size: 1.125rem;
    color: var(--harvard-gray);
    max-width: 600px;
    margin: 0 auto;
}

.programs-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-lg);
}

.program-card {
    background: var(--harvard-white);
    padding: var(--spacing-lg);
    border-radius: 8px;
    text-align: center;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    transition: var(--transition);
}

.program-card:hover {
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.15);
    transform: translateY(-4px);
}

.program-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-md);
}

.program-card h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--harvard-dark);
    margin-bottom: var(--spacing-sm);
}

.program-card p {
    font-size: 0.9rem;
    color: var(--harvard-gray);
    margin-bottom: var(--spacing-md);
    line-height: 1.5;
}

/* ==================== NEWS SECTION - HARVARD STYLE ==================== */
.news-section {
    padding: var(--spacing-xxl) 0;
    background: var(--harvard-white);
}

.news-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.news-card {
    background: var(--harvard-white);
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    transition: var(--transition);
}

.news-card:hover {
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.15);
    transform: translateY(-2px);
}

.news-card.featured {
    grid-row: span 2;
}

.news-image {
    position: relative;
    overflow: hidden;
}

.news-image img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    transition: var(--transition);
}

.news-card:hover .news-image img {
    transform: scale(1.05);
}

.news-content {
    padding: var(--spacing-lg);
}

.news-category {
    display: inline-block;
    background: var(--ists-primary);
    color: var(--harvard-white);
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 500;
    margin-bottom: var(--spacing-sm);
}

.news-content h3 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--harvard-dark);
    margin-bottom: var(--spacing-sm);
    line-height: 1.3;
}

.news-content p {
    font-size: 0.9rem;
    color: var(--harvard-gray);
    margin-bottom: var(--spacing-sm);
    line-height: 1.5;
}

.read-more {
    color: var(--ists-primary);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.9rem;
    transition: var(--transition);
}

.read-more:hover {
    color: var(--ists-secondary);
}

.news-actions {
    text-align: center;
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    flex-wrap: wrap;
}

/* ==================== QUICK LINKS - HARVARD STYLE ==================== */
.quick-links {
    padding: var(--spacing-xl) 0;
    background: var(--harvard-light-gray);
}

.quick-links h2 {
    font-size: 1.75rem;
    font-weight: 600;
    color: var(--harvard-dark);
    text-align: center;
    margin-bottom: var(--spacing-lg);
}

.links-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-md);
}

.quick-link {
    display: block;
    padding: var(--spacing-md);
    background: var(--harvard-white);
    color: var(--harvard-dark);
    text-decoration: none;
    border-radius: 4px;
    text-align: center;
    font-weight: 500;
    transition: var(--transition);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.quick-link:hover {
    background: var(--ists-primary);
    color: var(--harvard-white);
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.15);
}

/* ==================== FOOTER - HARVARD STYLE ==================== */
.footer {
    background: var(--harvard-dark);
    color: var(--harvard-white);
    padding: var(--spacing-xxl) 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 {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    color: var(--harvard-white);
}

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

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

.footer-section a {
    color: #CCCCCC;
    text-decoration: none;
    font-size: 0.9rem;
    transition: var(--transition);
}

.footer-section a:hover {
    color: var(--harvard-white);
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: var(--spacing-lg);
    border-top: 1px solid #333333;
    flex-wrap: wrap;
    gap: var(--spacing-md);
}

.footer-bottom p {
    font-size: 0.9rem;
    color: #CCCCCC;
    margin: 0;
}

.footer-social {
    display: flex;
    gap: var(--spacing-sm);
}

.footer-social a {
    color: #CCCCCC;
    text-decoration: none;
    font-size: 1.25rem;
    transition: var(--transition);
}

.footer-social a:hover {
    color: var(--harvard-white);
    transform: translateY(-2px);
}

/* ==================== RESPONSIVE DESIGN ==================== */
@media (max-width: 768px) {
    .focus-main {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }
    
    .news-grid {
        grid-template-columns: 1fr;
    }
    
    .news-card.featured {
        grid-row: span 1;
    }
    
    .programs-grid {
        grid-template-columns: 1fr;
    }
    
    .links-grid {
        grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    }
    
    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
    
    .focus-header h2 {
        font-size: 2rem;
    }
    
    .section-header h2 {
        font-size: 1.75rem;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 var(--spacing-sm);
    }
    
    .focus-section,
    .programs-section,
    .news-section {
        padding: var(--spacing-xl) 0;
    }
    
    .focus-header h2 {
        font-size: 1.75rem;
    }
    
    .section-header h2 {
        font-size: 1.5rem;
    }
    
    .news-actions {
        flex-direction: column;
        align-items: center;
    }
}

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

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.focus-featured,
.focus-item,
.program-card,
.news-card {
    animation: fadeInUp 0.6s ease-out;
}

.focus-featured {
    animation-delay: 0.1s;
}

.focus-item:nth-child(1) {
    animation-delay: 0.2s;
}

.focus-item:nth-child(2) {
    animation-delay: 0.3s;
}

/* ==================== UTILIDADES ==================== */
.text-center {
    text-align: center;
}

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

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

.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: var(--spacing-xs); }
.mb-2 { margin-bottom: var(--spacing-sm); }
.mb-3 { margin-bottom: var(--spacing-md); }
.mb-4 { margin-bottom: var(--spacing-lg); }
.mb-5 { margin-bottom: var(--spacing-xl); }

.mt-0 { margin-top: 0; }
.mt-1 { margin-top: var(--spacing-xs); }
.mt-2 { margin-top: var(--spacing-sm); }
.mt-3 { margin-top: var(--spacing-md); }
.mt-4 { margin-top: var(--spacing-lg); }
.mt-5 { margin-top: var(--spacing-xl); }