/* Variables CSS para tema claro */
:root {
    --primary-color: #1e3a8a;
    --primary-light: #3b82f6;
    --secondary-color: #ffffff;
    --text-color: #1f2937;
    --text-light: #6b7280;
    --bg-color: #ffffff;
    --bg-secondary: #f8fafc;
    --border-color: #e5e7eb;
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
}

/* Variables CSS para tema oscuro */
[data-theme="dark"] {
    --primary-color: #60a5fa;
    --primary-light: #93c5fd;
    --secondary-color: #000000;
    --text-color: #ffffff;
    --text-light: #d1d5db;
    --bg-color: #000000;
    --bg-secondary: #111827;
    --border-color: #374151;
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.3);
}

/* Reset y estilos base */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.6;
    transition: all 0.3s ease;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header y Navegación */
.header {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    color: var(--secondary-color);
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.nav-brand h1 {
    font-size: 1.5rem;
    font-weight: 700;
}

.nav-brand i {
    margin-right: 0.5rem;
    color: #e5e7eb;
}

.nav-menu {
    display: flex;
    gap: 2rem;
}

.nav-link {
    color: var(--secondary-color);
    text-decoration: none;
    font-weight: 500;
    padding: 0.5rem 1rem;
    border-radius: 0.5rem;
    transition: all 0.3s ease;
}

.nav-link:hover,
.nav-link.active {
    background-color: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
}

.nav-auth {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.btn-login,
.btn-register {
    padding: 0.5rem 1rem;
    border: 2px solid var(--secondary-color);
    background: transparent;
    color: var(--secondary-color);
    border-radius: 0.5rem;
    cursor: pointer;
    font-weight: 500;
    transition: all 0.3s ease;
}

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

.btn-login:hover,
.btn-register:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow);
}

.user-menu {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.btn-logout {
    padding: 0.5rem 1rem;
    background-color: #dc2626;
    color: white;
    border: none;
    border-radius: 0.5rem;
    cursor: pointer;
    font-weight: 500;
    transition: all 0.3s ease;
}

.btn-logout:hover {
    background-color: #b91c1c;
    transform: translateY(-2px);
}

.theme-toggle {
    background: none;
    border: 2px solid var(--secondary-color);
    color: var(--secondary-color);
    padding: 0.5rem;
    border-radius: 50%;
    cursor: pointer;
    transition: all 0.3s ease;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.theme-toggle:hover {
    background-color: rgba(255, 255, 255, 0.2);
    transform: rotate(180deg);
}

/* Secciones */
.section {
    display: none;
    min-height: calc(100vh - 80px);
    padding: 2rem 0;
}

.section.active {
    display: block;
}

/* Página de Detalle del Proyecto */
.proyecto-detalle-section {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0.5rem;
}

.btn-back {
    background-color: var(--bg-color);
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
    padding: 0.75rem 1.5rem;
    border-radius: 0.5rem;
    cursor: pointer;
    font-weight: 600;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 2rem;
    font-size: 1rem;
}

.btn-back:hover {
    background-color: var(--primary-color);
    color: var(--secondary-color);
    transform: translateX(-5px);
}

.proyecto-detalle-content {
    background-color: var(--bg-color);
    border-radius: 1rem;
    box-shadow: var(--shadow-lg);
    padding: 2rem;
    border: 1px solid var(--border-color);
}

.detalle-header {
    margin-bottom: 2rem;
    padding-bottom: 1.5rem;
    border-bottom: 2px solid var(--border-color);
}

.detalle-titulo {
    font-size: 2.5rem;
    color: var(--primary-color);
    font-weight: 700;
    margin-bottom: 1rem;
}

.detalle-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    margin-bottom: 1rem;
}

.detalle-tag {
    background-color: var(--primary-color);
    color: var(--secondary-color);
    padding: 0.5rem 1rem;
    border-radius: 1rem;
    font-size: 0.875rem;
    font-weight: 500;
}

.detalle-info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.detalle-info-item {
    padding: 1rem;
    background-color: var(--bg-secondary);
    border-radius: 0.5rem;
    border: 1px solid var(--border-color);
}

.detalle-info-label {
    font-weight: 600;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
    display: block;
}

.detalle-info-value {
    color: var(--text-color);
    font-size: 1rem;
}

.detalle-descripcion {
    margin-bottom: 2rem;
    padding: 1.5rem;
    background-color: var(--bg-secondary);
    border-radius: 0.5rem;
    border: 1px solid var(--border-color);
}

.detalle-descripcion h3 {
    font-size: 1.5rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
    font-weight: 700;
}

.detalle-descripcion p {
    color: var(--text-color);
    line-height: 1.8;
    font-size: 1rem;
}

.detalle-palabras-clave {
    margin-bottom: 2rem;
    padding: 1.5rem;
    background-color: var(--bg-secondary);
    border-radius: 0.5rem;
    border: 1px solid var(--border-color);
}

.detalle-palabras-clave h3 {
    font-size: 1.25rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
    font-weight: 700;
}

.palabras-clave-list {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.palabra-clave-tag {
    background-color: var(--primary-light);
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 1rem;
    font-size: 0.875rem;
    font-weight: 500;
}

.detalle-archivos {
    margin-bottom: 2rem;
}

.detalle-archivos h3 {
    font-size: 1.5rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
    font-weight: 700;
}

.archivos-list {
    border: 1px solid var(--border-color);
    border-radius: 0.5rem;
    overflow: hidden;
}

.archivo-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 1.5rem;
    border-bottom: 1px solid var(--border-color);
    background-color: var(--bg-color);
    transition: background-color 0.2s ease;
}

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

.archivo-item:hover {
    background-color: var(--bg-secondary);
}

.archivo-info {
    display: flex;
    align-items: center;
    gap: 1rem;
    flex: 1;
}

.archivo-icono {
    font-size: 1.5rem;
    color: var(--primary-color);
}

.archivo-nombre {
    font-weight: 500;
    color: var(--text-color);
}

.archivo-tamaño {
    color: var(--text-light);
    font-size: 0.875rem;
    margin-left: auto;
    margin-right: 1rem;
}

.detalle-acciones {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    padding-top: 2rem;
    border-top: 2px solid var(--border-color);
}

.btn-download {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    color: var(--secondary-color);
    border: none;
    padding: 1rem 2rem;
    border-radius: 0.5rem;
    cursor: pointer;
    font-weight: 600;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1rem;
}

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

.btn-link {
    background-color: transparent;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
    padding: 1rem 2rem;
    border-radius: 0.5rem;
    cursor: pointer;
    font-weight: 600;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    text-decoration: none;
    font-size: 1rem;
}

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

/* Hacer los project cards clickeables */
.project-card {
    cursor: pointer;
}

.project-card:hover {
    cursor: pointer;
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    color: var(--secondary-color);
    padding: 4rem 2rem;
    text-align: center;
    border-radius: 1rem;
    margin: 2rem;
}

.hero-content h2 {
    font-size: 3rem;
    margin-bottom: 1rem;
    font-weight: 700;
}

.hero-content h2 i {
    margin-right: 1rem;
    color: #e5e7eb;
}

.hero-subtitle {
    font-size: 1.2rem;
    margin-bottom: 3rem;
    opacity: 0.9;
}

.hero-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.feature-card {
    background-color: rgba(255, 255, 255, 0.1);
    padding: 2rem;
    border-radius: 1rem;
    backdrop-filter: blur(10px);
    transition: all 0.3s ease;
    text-align: left;
}

.feature-card:hover {
    background-color: rgba(255, 255, 255, 0.15);
    transform: translateY(-5px);
}

.feature-icon {
    font-size: 2.5rem;
    color: #ffffff;
    margin-bottom: 1rem;
}

.feature-card h4 {
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
    font-weight: 600;
}

.feature-card p {
    font-size: 0.95rem;
    opacity: 0.9;
    line-height: 1.6;
}

.hero-stats {
    display: flex;
    justify-content: center;
    gap: 3rem;
    margin-top: 2rem;
}

.stat {
    text-align: center;
}

.stat h3 {
    font-size: 2.5rem;
    font-weight: 700;
    color: #e5e7eb;
    margin-bottom: 0.5rem;
}

.stat p {
    font-size: 1rem;
    opacity: 0.8;
}

/* Info Section */
.info-section {
    padding: 2rem;
}

.info-card-large {
    background-color: var(--bg-color);
    padding: 2.5rem;
    border-radius: 1rem;
    box-shadow: var(--shadow);
    margin-bottom: 2rem;
    border: 1px solid var(--border-color);
}

.info-card-large h3 {
    font-size: 1.75rem;
    color: var(--primary-color);
    margin-bottom: 1.5rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.info-card-large h3 i {
    font-size: 1.5rem;
    color: var(--primary-light);
}

.info-card-large p {
    color: var(--text-color);
    line-height: 1.8;
    font-size: 1rem;
    margin-bottom: 1rem;
}

.info-list {
    list-style: none;
    padding: 0;
    margin-top: 1rem;
}

.info-list li {
    padding: 0.75rem 0;
    color: var(--text-color);
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.info-list li i {
    color: var(--primary-color);
    font-size: 1rem;
}

.funcionalidades-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-top: 1.5rem;
}

.funcionalidad-item {
    background-color: var(--bg-secondary);
    padding: 1.5rem;
    border-radius: 0.75rem;
    border: 1px solid var(--border-color);
    text-align: center;
    transition: all 0.3s ease;
}

.funcionalidad-item:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow);
    border-color: var(--primary-color);
}

.funcionalidad-item i {
    font-size: 2rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.funcionalidad-item h4 {
    font-size: 1.1rem;
    color: var(--text-color);
    margin-bottom: 0.5rem;
    font-weight: 600;
}

.funcionalidad-item p {
    font-size: 0.9rem;
    color: var(--text-light);
    line-height: 1.5;
}

/* Carreras en formato compacto */
.carreras-summary {
    margin: 3rem 0;
    padding: 2rem;
    background-color: var(--bg-secondary);
    border-radius: 1rem;
}

.carreras-summary h3 {
    font-size: 1.75rem;
    margin-bottom: 0.5rem;
    color: var(--primary-color);
    font-weight: 700;
    text-align: center;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
}

.carreras-summary h3 i {
    color: var(--primary-light);
}

.carreras-intro {
    text-align: center;
    color: var(--text-light);
    margin-bottom: 1.5rem;
    font-size: 1rem;
}

.carreras-grid-compact {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    justify-content: center;
    margin-top: 1.5rem;
}

.carrera-badge {
    background-color: var(--primary-color);
    color: var(--secondary-color);
    padding: 0.5rem 1.25rem;
    border-radius: 1.5rem;
    font-size: 0.875rem;
    font-weight: 500;
    transition: all 0.3s ease;
    display: inline-block;
}

.carrera-badge:hover {
    background-color: var(--primary-light);
    transform: translateY(-2px);
    box-shadow: var(--shadow);
}

/* Section Header */
.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    padding: 0 2rem;
}

.section-header h2 {
    font-size: 2.5rem;
    color: var(--primary-color);
    font-weight: 700;
}

/* Botones */
.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    color: var(--secondary-color);
    border: none;
    padding: 0.75rem 1.5rem;
    border-radius: 0.5rem;
    cursor: pointer;
    font-weight: 600;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

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

/* Búsqueda y Filtros */
.search-filters {
    background-color: var(--bg-secondary);
    padding: 2rem;
    border-radius: 1rem;
    margin-bottom: 2rem;
    box-shadow: var(--shadow);
}

.search-bar {
    position: relative;
    margin-bottom: 1.5rem;
}

.search-bar input {
    width: 100%;
    padding: 1rem 3rem 1rem 1rem;
    border: 2px solid var(--border-color);
    border-radius: 0.5rem;
    font-size: 1rem;
    background-color: var(--bg-color);
    color: var(--text-color);
    transition: all 0.3s ease;
}

.search-bar input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.search-bar i {
    position: absolute;
    right: 1rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-light);
}

.filters {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.filters select {
    padding: 0.75rem 1rem;
    border: 2px solid var(--border-color);
    border-radius: 0.5rem;
    background-color: var(--bg-color);
    color: var(--text-color);
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.3s ease;
    min-width: 200px;
}

.filters select:focus {
    outline: none;
    border-color: var(--primary-color);
}

/* Grid de Proyectos */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 2rem;
    padding: 0 2rem;
}

.project-card {
    background-color: var(--bg-color);
    border-radius: 1rem;
    box-shadow: var(--shadow);
    overflow: hidden;
    transition: all 0.3s ease;
    border: 1px solid var(--border-color);
}

.project-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.project-image {
    width: 100%;
    height: 200px;
    object-fit: cover;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--secondary-color);
    font-size: 3rem;
}

.project-content {
    padding: 1.5rem;
}

.project-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-color);
    margin-bottom: 0.5rem;
    line-height: 1.4;
}

.project-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.project-tag {
    background-color: var(--primary-color);
    color: var(--secondary-color);
    padding: 0.25rem 0.75rem;
    border-radius: 1rem;
    font-size: 0.875rem;
    font-weight: 500;
}

.project-keywords {
    color: var(--primary-color);
    font-size: 0.875rem;
    margin-bottom: 1rem;
    font-style: italic;
}

.project-keywords strong {
    color: var(--text-color);
}

.project-description {
    color: var(--text-light);
    line-height: 1.6;
    margin-bottom: 1rem;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.project-actions {
    display: flex;
    gap: 0.5rem;
    margin-top: 1rem;
}

.btn-secondary {
    background-color: transparent;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
    padding: 0.5rem 1rem;
    border-radius: 0.5rem;
    cursor: pointer;
    font-weight: 500;
    transition: all 0.3s ease;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.btn-secondary:hover {
    background-color: var(--primary-color);
    color: var(--secondary-color);
    transform: translateY(-2px);
}

/* Información Institucional */
.info-content {
    padding: 0 2rem;
}

.info-content h2 {
    text-align: center;
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 3rem;
    font-weight: 700;
}

.info-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.info-card {
    background-color: var(--bg-color);
    padding: 2rem;
    border-radius: 1rem;
    box-shadow: var(--shadow);
    text-align: center;
    transition: all 0.3s ease;
    border: 1px solid var(--border-color);
}

.info-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.card-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    color: var(--secondary-color);
    font-size: 2rem;
}

.info-card h3 {
    font-size: 1.5rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
    font-weight: 700;
}

.info-card p {
    color: var(--text-light);
    line-height: 1.6;
    margin-bottom: 1rem;
}

.info-card ul {
    list-style: none;
    text-align: left;
}

.info-card li {
    color: var(--text-light);
    padding: 0.5rem 0;
    border-bottom: 1px solid var(--border-color);
    position: relative;
    padding-left: 1.5rem;
}

.info-card li:before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--primary-color);
    font-weight: bold;
}

/* Modales */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 2000;
    backdrop-filter: blur(5px);
}

.modal.active {
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-content {
    background-color: var(--bg-color);
    border-radius: 1rem;
    box-shadow: var(--shadow-lg);
    max-width: 500px;
    width: 90%;
    max-height: 90vh;
    overflow-y: auto;
}

.modal-content.large {
    max-width: 800px;
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem;
    border-bottom: 1px solid var(--border-color);
}

.modal-header h3 {
    font-size: 1.5rem;
    color: var(--primary-color);
    font-weight: 700;
}

.modal-close {
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--text-light);
    transition: color 0.3s ease;
}

.modal-close:hover {
    color: var(--text-color);
}

/* Formularios */
form {
    padding: 1.5rem;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: var(--text-color);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.75rem;
    border: 2px solid var(--border-color);
    border-radius: 0.5rem;
    font-size: 1rem;
    background-color: var(--bg-color);
    color: var(--text-color);
    transition: all 0.3s ease;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.form-group small {
    color: var(--text-light);
    font-size: 0.875rem;
    margin-top: 0.5rem;
    display: block;
}

/* Responsive Design */
@media (max-width: 768px) {
    .detalle-titulo {
        font-size: 1.75rem;
    }
    
    .detalle-info-grid {
        grid-template-columns: 1fr;
    }
    
    .detalle-acciones {
        flex-direction: column;
    }
    
    .btn-download,
    .btn-link {
        width: 100%;
        justify-content: center;
    }
    
    .navbar {
        flex-direction: column;
        gap: 1rem;
        padding: 1rem;
    }
    
    .nav-menu {
        gap: 1rem;
    }
    
    .nav-auth {
        flex-direction: row;
        gap: 0.5rem;
        flex-wrap: wrap;
        justify-content: center;
    }
    
    .hero-content h2 {
        font-size: 2rem;
    }
    
    .btn-login,
    .btn-register {
        font-size: 0.875rem;
        padding: 0.4rem 0.8rem;
    }
    
    .hero {
        padding: 2rem 1rem;
        margin: 1rem;
    }

    .hero-content h2 {
        font-size: 2rem;
    }
    
    .hero-subtitle {
        font-size: 1rem;
    }

    .hero-features {
        grid-template-columns: repeat(2, 1fr);
        gap: 1rem;
    }

    .feature-card {
        padding: 1rem;
    }

    .feature-icon {
        font-size: 1.75rem;
        margin-bottom: 0.5rem;
    }

    .feature-card h4 {
        font-size: 1rem;
    }

    .feature-card p {
        font-size: 0.85rem;
    }

    .info-section {
        padding: 1rem;
    }

    .info-card-large {
        padding: 1.5rem;
    }

    .info-card-large h3 {
        font-size: 1.5rem;
        flex-direction: column;
        gap: 0.5rem;
    }

    .funcionalidades-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }

    .carreras-grid-compact {
        gap: 0.5rem;
    }

    .carrera-badge {
        font-size: 0.8rem;
        padding: 0.4rem 0.9rem;
    }

    .hero-stats {
        flex-direction: column;
        gap: 1rem;
    }
    
    .section-header {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }
    
    .search-filters {
        padding: 1rem;
    }
    
    .filters {
        flex-direction: column;
    }
    
    .filters select {
        min-width: auto;
    }
    
    .projects-grid {
        grid-template-columns: 1fr;
        padding: 0 1rem;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .info-cards {
        grid-template-columns: 1fr;
    }
    
    .modal-content {
        width: 95%;
        margin: 1rem;
    }
}

@media (max-width: 480px) {
    .hero {
        margin: 0.5rem;
        padding: 1.5rem 1rem;
    }
    
    .hero-content h2 {
        font-size: 1.5rem;
    }

    .hero-subtitle {
        font-size: 0.9rem;
    }

    .hero-features {
        grid-template-columns: repeat(2, 1fr);
        gap: 0.75rem;
    }

    .feature-card {
        padding: 1rem 0.75rem;
        text-align: center;
    }

    .feature-icon {
        font-size: 1.5rem;
        margin-bottom: 0.5rem;
    }

    .feature-card h4 {
        font-size: 0.9rem;
        margin-bottom: 0.25rem;
    }

    .feature-card p {
        font-size: 0.75rem;
        line-height: 1.4;
    }

    .info-section {
        padding: 0.5rem;
    }

    .info-card-large {
        padding: 1rem;
    }

    .info-card-large h3 {
        font-size: 1.25rem;
        margin-bottom: 1rem;
    }

    .info-card-large p {
        font-size: 0.9rem;
        line-height: 1.6;
    }

    .funcionalidad-item {
        padding: 1rem;
    }

    .funcionalidad-item h4 {
        font-size: 1rem;
    }

    .funcionalidad-item p {
        font-size: 0.85rem;
    }

    .carreras-summary {
        padding: 1.5rem 1rem;
    }

    .carreras-summary h3 {
        font-size: 1.5rem;
    }

    .carreras-intro {
        font-size: 0.9rem;
    }
    
    .section-header h2 {
        font-size: 2rem;
    }
    
    .info-content h2 {
        font-size: 2rem;
    }
    
    .projects-grid {
        padding: 0 0.5rem;
    }
    
    .search-filters {
        padding: 0.5rem;
    }
}

/* Animaciones */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.project-card {
    animation: fadeIn 0.5s ease-out;
}

/* Estados de carga */
.loading {
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 2rem;
}

.spinner {
    width: 40px;
    height: 40px;
    border: 4px solid var(--border-color);
    border-top: 4px solid var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Mensajes de estado */
.message {
    padding: 1rem;
    border-radius: 0.5rem;
    margin: 1rem 0;
    font-weight: 500;
}

.message.success {
    background-color: #d1fae5;
    color: #065f46;
    border: 1px solid #a7f3d0;
}

.message.error {
    background-color: #fee2e2;
    color: #991b1b;
    border: 1px solid #fca5a5;
}

[data-theme="dark"] .message.success {
    background-color: #064e3b;
    color: #6ee7b7;
    border-color: #10b981;
}

[data-theme="dark"] .message.error {
    background-color: #7f1d1d;
    color: #fca5a5;
    border-color: #ef4444;
}