/* 
   Estilos para la Landing Page de Neuroeducación Transformadora
   International Institute of Rinsa Inc.
*/

/* Variables y Configuración General */
:root {
    /* Colores principales */
    --color-primary: #1A365D;
    --color-secondary: #4ECDC4;
    --color-accent: #FF6B6B;
    --color-light: #FFFFFF;
    --color-dark: #333333;
    --color-gray: #F5F5F5;
    --color-gray-dark: #666666;
    
    /* Sombras */
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 8px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 8px 16px rgba(0, 0, 0, 0.1);
    
    /* Transiciones */
    --transition-fast: 0.3s ease;
    --transition-normal: 0.5s ease;
    --transition-slow: 0.8s ease;
    
    /* Bordes */
    --border-radius-sm: 4px;
    --border-radius-md: 8px;
    --border-radius-lg: 16px;
    --border-radius-xl: 24px;
}

/* Tema Oscuro */
[data-theme="dark"] {
    --color-primary: #2A4365;
    --color-secondary: #38B2AC;
    --color-accent: #F56565;
    --color-light: #1A202C;
    --color-dark: #F7FAFC;
    --color-gray: #2D3748;
    --color-gray-dark: #CBD5E0;
    
    color-scheme: dark;
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: 'Lora', serif;
    line-height: 1.6;
    color: var(--color-dark);
    background-color: var(--color-light);
    transition: background-color var(--transition-normal), color var(--transition-normal);
}

h1, h2, h3, h4, h5, h6 {
    font-family: 'Montserrat', sans-serif;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1rem;
}

p {
    margin-bottom: 1.5rem;
}

a {
    color: var(--color-primary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--color-accent);
}

img {
    max-width: 100%;
    height: auto;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

section {
    padding: 5rem 0;
}

.section-title {
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: 3rem;
    position: relative;
    color: var(--color-primary);
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -0.5rem;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 4px;
    background-color: var(--color-accent);
    border-radius: 2px;
}

/* Botones */
.btn {
    display: inline-block;
    padding: 0.8rem 1.8rem;
    border-radius: var(--border-radius-md);
    font-family: 'Montserrat', sans-serif;
    font-weight: 600;
    text-align: center;
    cursor: pointer;
    transition: all var(--transition-fast);
    border: none;
    font-size: 1rem;
}

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

.btn-primary:hover {
    background-color: #e05e5e;
    color: var(--color-light);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

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

.btn-secondary:hover {
    background-color: #3db8b0;
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-tertiary {
    background-color: var(--color-gray);
    color: var(--color-dark);
}

.btn-tertiary:hover {
    background-color: #e0e0e0;
    transform: translateY(-2px);
}

/* Navegación */
#main-nav {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background-color: var(--color-light);
    box-shadow: var(--shadow-sm);
    z-index: 1000;
    transition: background-color var(--transition-normal), box-shadow var(--transition-normal);
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
}

.logo {
    font-family: 'Montserrat', sans-serif;
    font-weight: 700;
    font-size: 1.2rem;
    color: var(--color-primary);
}

.nav-links {
    display: flex;
    list-style: none;
    align-items: center;
}

.nav-links li {
    margin-left: 1.5rem;
}

.nav-links a {
    font-family: 'Montserrat', sans-serif;
    font-weight: 500;
    font-size: 0.9rem;
    color: var(--color-dark);
    transition: color var(--transition-fast);
}

.nav-links a:hover {
    color: var(--color-accent);
}

.menu-toggle {
    display: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--color-dark);
}

#theme-toggle {
    background: none;
    border: none;
    cursor: pointer;
    font-size: 1.2rem;
    color: var(--color-dark);
    transition: color var(--transition-fast);
}

#theme-toggle:hover {
    color: var(--color-accent);
}

/* Botón flotante para PDF */
.pdf-float-button {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    z-index: 99;
}

.pdf-float-button a {
    display: flex;
    justify-content: center;
    align-items: center;
    width: 60px;
    height: 60px;
    background-color: var(--color-accent);
    color: var(--color-light);
    border-radius: 50%;
    box-shadow: var(--shadow-md);
    font-size: 1.5rem;
    transition: all var(--transition-fast);
}

.pdf-float-button a:hover {
    transform: scale(1.1);
    box-shadow: var(--shadow-lg);
}

/* Sección Hero */
.hero {
    position: relative;
    height: 100vh;
    min-height: 600px;
    display: flex;
    align-items: center;
    background-image: url('img/portada.png');
    background-size: cover;
    background-position: center;
    color: var(--color-light);
    padding-top: 160px; /* AUMENTADO para evitar que el menú cubra el título */
    overflow: hidden;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(26, 54, 93, 0.9) 0%, rgba(26, 54, 93, 0.7) 100%);
    z-index: 1;
}

.hero .container {
    position: relative;
    z-index: 2;
}

.hero-content {
    max-width: 700px;
}

.hero h1 {
    font-size: 2rem;
    margin-bottom: 0.5rem;
}

.hero h2 {
    font-size: 3rem;
    margin-bottom: 0.5rem;
    color: var(--color-secondary);
}

.hero h3 {
    font-size: 1.8rem;
    margin-bottom: 1.5rem;
    font-weight: 500;
}

.hero p {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    max-width: 600px;
}

.cta-container {
    display: flex;
    flex-wrap: wrap;
    gap: 1.5rem;
    align-items: center;
    margin-bottom: 2rem;
}

.start-date {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-family: 'Montserrat', sans-serif;
    font-weight: 500;
}

.countdown-container {
    margin-top: 2rem;
}

#countdown {
    display: flex;
    gap: 1.5rem;
}

.countdown-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    background-color: rgba(255, 255, 255, 0.1);
    padding: 1rem;
    border-radius: var(--border-radius-md);
    min-width: 80px;
}

.countdown-item span:first-child {
    font-size: 2rem;
    font-weight: 700;
    font-family: 'Montserrat', sans-serif;
}

.countdown-label {
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* Sección Descripción */
.descripcion {
    background-color: var(--color-light);
}

.descripcion-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
}

.descripcion-text p {
    margin-bottom: 1.5rem;
}

.descripcion-features {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
}

.feature {
    text-align: center;
    padding: 1.5rem;
    border-radius: var(--border-radius-md);
    background-color: var(--color-gray);
    transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.feature:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
}

.feature-icon {
    font-size: 2.5rem;
    color: var(--color-accent);
    margin-bottom: 1rem;
}

.feature h3 {
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
}

/* Sección Para Quién */
.para-quien {
    background-color: var(--color-gray);
}

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

.perfil-card {
    background-color: var(--color-light);
    border-radius: var(--border-radius-md);
    padding: 2rem;
    text-align: center;
    box-shadow: var(--shadow-sm);
    transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

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

.perfil-icon {
    font-size: 3rem;
    color: var(--color-secondary);
    margin-bottom: 1.5rem;
}

.perfil-card h3 {
    font-size: 1.3rem;
    margin-bottom: 1rem;
}

.requisitos {
    background-color: var(--color-light);
    border-radius: var(--border-radius-md);
    padding: 1.5rem;
    text-align: center;
    box-shadow: var(--shadow-sm);
}

.requisitos p {
    margin-bottom: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.requisitos i {
    color: var(--color-accent);
    font-size: 1.2rem;
}

/* Sección Módulos */
.modulos {
    background-color: var(--color-light);
}

.tabs {
    max-width: 900px;
    margin: 0 auto;
}

.tab-header {
    display: flex;
    overflow-x: auto;
    scrollbar-width: thin;
    scrollbar-color: var(--color-secondary) var(--color-gray);
    margin-bottom: 2rem;
    padding-bottom: 0.5rem;
}

.tab-header::-webkit-scrollbar {
    height: 6px;
}

.tab-header::-webkit-scrollbar-track {
    background: var(--color-gray);
    border-radius: 10px;
}

.tab-header::-webkit-scrollbar-thumb {
    background-color: var(--color-secondary);
    border-radius: 10px;
}

.tab {
    flex: 1;
    min-width: 120px;
    text-align: center;
    padding: 1rem;
    cursor: pointer;
    border-bottom: 3px solid transparent;
    transition: all var(--transition-fast);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
}

.tab.active {
    border-bottom-color: var(--color-accent);
}

/* Contenedor del ícono */
.tab-icon {
    display: flex;
    justify-content: center;
    align-items: center;
    width: 60px;
    height: 60px;
    margin: 0 auto 0.5rem;
    border-radius: 50%;
    background-color: var(--color-gray);
    transition: all 0.3s ease-in-out;
    position: relative;
    overflow: hidden;
}

/* Ícono dentro del contenedor */
.tab-icon i {
    font-size: 1.8rem;
    color: var(--color-primary);
    transition: all 0.3s ease-in-out;
}

/* Efecto de fondo para el ícono activo */
.tab-icon::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle, var(--color-secondary) 0%, transparent 70%);
    opacity: 0;
    transform: scale(0);
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

/* Estilos para el tab activo */
.tab.active .tab-icon {
    background-color: var(--color-light);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    transform: translateY(-5px);
}

.tab.active .tab-icon::before {
    opacity: 0.15;
    transform: scale(1.5);
}

.tab.active .tab-icon i {
    color: var(--color-accent);
    transform: scale(1.2);
}

/* Animación al pasar el mouse */
.tab:not(.active):hover .tab-icon {
    background-color: var(--color-light);
    transform: translateY(-3px);
}

.tab:not(.active):hover .tab-icon i {
    color: var(--color-secondary);
}

/* Animación de pulso para el ícono activo */
@keyframes pulse {
    0% {
        box-shadow: 0 0 0 0 rgba(255, 107, 107, 0.4);
    }
    70% {
        box-shadow: 0 0 0 10px rgba(255, 107, 107, 0);
    }
    100% {
        box-shadow: 0 0 0 0 rgba(255, 107, 107, 0);
    }
}

.tab.active .tab-icon {
    animation: pulse 2s infinite;
}

/* Animación de rotación para ciertos íconos */
.tab[data-tab="5"] .tab-icon i {
    transition: transform 0.5s ease-in-out;
}

.tab[data-tab="5"]:hover .tab-icon i,
.tab[data-tab="5"].active .tab-icon i {
    transform: rotate(180deg);
}

/* Animación de rebote para el ícono de puzzle */
@keyframes bounce {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-5px);
    }
}

.tab[data-tab="6"].active .tab-icon i {
    animation: bounce 2s ease infinite;
}

/* Animación de giro para el ícono del globo */
@keyframes rotate {
    0% {
        transform: rotate(0deg);
    }
    100% {
        transform: rotate(360deg);
    }
}

.tab[data-tab="7"].active .tab-icon i {
    animation: rotate 10s linear infinite;
}

.tab-title {
    font-family: 'Montserrat', sans-serif;
    font-weight: 600;
    font-size: 0.9rem;
}

.tab-content {
    background-color: var(--color-gray);
    border-radius: var(--border-radius-md);
    padding: 2rem;
}

.tab-pane {
    display: none;
}

.tab-pane.active {
    display: block;
}

.tab-pane h3 {
    color: var(--color-primary);
    margin-bottom: 1.5rem;
    font-size: 1.5rem;
}

.tab-pane-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 2rem;
}

.hito-aprendizaje {
    background-color: var(--color-light);
    border-radius: var(--border-radius-md);
    padding: 1.5rem;
    margin-top: 2rem;
    box-shadow: var(--shadow-sm);
}

.hito-aprendizaje h4 {
    color: var(--color-accent);
    margin-bottom: 0.5rem;
    font-size: 1.1rem;
}

.tab-pane-info {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.fecha, .duracion {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    background-color: var(--color-light);
    padding: 1rem;
    border-radius: var(--border-radius-md);
    box-shadow: var(--shadow-sm);
}

.fecha i, .duracion i {
    color: var(--color-secondary);
    font-size: 1.2rem;
}

/* Sección Cronograma */
.cronograma {
    background-color: var(--color-gray);
}

.timeline-container {
    max-width: 800px;
    margin: 0 auto;
}

.timeline {
    position: relative;
    padding: 2rem 0;
}

.timeline::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 4px;
    height: 100%;
    background-color: var(--color-secondary);
    border-radius: 2px;
}

.timeline-item {
    position: relative;
    margin-bottom: 3rem;
    width: 100%;
}

.timeline-item:nth-child(odd) {
    padding-right: calc(50% + 2rem);
    text-align: right;
}

.timeline-item:nth-child(even) {
    padding-left: calc(50% + 2rem);
}

.timeline-dot {
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 20px;
    height: 20px;
    background-color: var(--color-accent);
    border-radius: 50%;
    z-index: 2;
}

.timeline-date {
    font-family: 'Montserrat', sans-serif;
    font-weight: 600;
    color: var(--color-accent);
    margin-bottom: 0.5rem;
}

.timeline-content {
    background-color: var(--color-light);
    border-radius: var(--border-radius-md);
    padding: 1.5rem;
    box-shadow: var(--shadow-sm);
}

.timeline-content h3 {
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
}

.timeline-content p {
    margin-bottom: 0;
}

/* Sección Metodología */
.metodologia {
    background-color: var(--color-light);
}

.metodologia-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
}

.metodologia-features {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
}

.metodologia-feature {
    text-align: center;
    padding: 1.5rem;
    border-radius: var(--border-radius-md);
    background-color: var(--color-gray);
    transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.metodologia-feature:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
}

/* Sección Testimonios */
.testimonios {
    background-color: var(--color-gray);
}

.testimonios-slider {
    max-width: 700px;
    margin: 0 auto;
    position: relative;
}

.testimonio-container {
    position: relative;
    overflow: hidden;
    border-radius: var(--border-radius-md);
    height: 300px;
}

.testimonio {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    transform: translateX(100%);
    transition: all var(--transition-normal);
}

.testimonio.active {
    opacity: 1;
    transform: translateX(0);
}

.testimonio-content {
    background-color: var(--color-light);
    padding: 2rem;
    border-radius: var(--border-radius-md);
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    box-shadow: var(--shadow-md);
}

.testimonio-content p {
    font-size: 1.1rem;
    font-style: italic;
}

.testimonio-autor {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.testimonio-avatar {
    font-size: 2.5rem;
    color: var(--color-secondary);
}

.testimonio-info h4 {
    margin-bottom: 0.2rem;
    font-size: 1.1rem;
}

.testimonio-info p {
    margin-bottom: 0;
    font-size: 0.9rem;
    font-style: normal;
    color: var(--color-gray-dark);
}

.testimonio-controls {
    display: flex;
    justify-content: center;
    align-items: center;
    margin-top: 2rem;
    gap: 1rem;
}

.testimonio-prev, .testimonio-next {
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--color-primary);
    cursor: pointer;
    transition: color var(--transition-fast);
}

.testimonio-prev:hover, .testimonio-next:hover {
    color: var(--color-accent);
}

.testimonio-dots {
    display: flex;
    gap: 0.5rem;
}

.testimonio-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background-color: var(--color-gray-dark);
    cursor: pointer;
    transition: background-color var(--transition-fast);
}

.testimonio-dot.active {
    background-color: var(--color-accent);
}

/* Sección Final */
.final {
    background-color: var(--color-primary);
    color: var(--color-light);
    text-align: center;
}

.final .section-title {
    color: var(--color-light);
}

.final-content p {
    font-size: 1.2rem;
    max-width: 700px;
    margin: 0 auto 2rem;
}

.final-cta {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
    flex-wrap: wrap;
}

/* Footer */
footer {
    background-color: var(--color-dark);
    color: var(--color-light);
    padding: 4rem 0 2rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-logo {
    font-family: 'Montserrat', sans-serif;
    font-weight: 700;
    font-size: 1.2rem;
}

.footer-links h3, .footer-contact h3 {
    font-size: 1.2rem;
    margin-bottom: 1.5rem;
    color: var(--color-secondary);
}

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

.footer-links li {
    margin-bottom: 0.8rem;
}

.footer-links a {
    color: var(--color-light);
    transition: color var(--transition-fast);
}

.footer-links a:hover {
    color: var(--color-secondary);
}

.footer-contact p {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.social-links {
    display: flex;
    gap: 1rem;
    margin-top: 1.5rem;
}

.social-links a {
    display: flex;
    justify-content: center;
    align-items: center;
    width: 40px;
    height: 40px;
    background-color: rgba(255, 255, 255, 0.1);
    color: var(--color-light);
    border-radius: 50%;
    transition: all var(--transition-fast);
}

.social-links a:hover {
    background-color: var(--color-secondary);
    color: var(--color-dark);
    transform: translateY(-3px);
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    font-size: 0.9rem;
}

/* Modal para PDF */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.8);
    z-index: 2000;
    overflow: auto;
}

.modal-content {
    position: relative;
    background-color: var(--color-light);
    margin: 5% auto;
    padding: 2rem;
    width: 90%;
    max-width: 1000px;
    border-radius: var(--border-radius-md);
    box-shadow: var(--shadow-lg);
}

.close-modal {
    position: absolute;
    top: 1rem;
    right: 1.5rem;
    font-size: 2rem;
    cursor: pointer;
    color: var(--color-gray-dark);
    transition: color var(--transition-fast);
}

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

.modal-content h2 {
    text-align: center;
    margin-bottom: 2rem;
}

.pdf-container {
    width: 100%;
    height: 70vh;
    margin-bottom: 2rem;
    border: 1px solid var(--color-gray-dark);
    border-radius: var(--border-radius-sm);
    overflow: hidden;
}

#pdf-iframe {
    width: 100%;
    height: 100%;
    border: none;
}

.modal-buttons {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
}

/* Animaciones */
.animate-on-scroll {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity var(--transition-normal), transform var(--transition-normal);
}

.animate-on-scroll.show {
    opacity: 1;
    transform: translateY(0);
}

/* Sección Certificaciones */
.certificaciones {
    background-color: var(--color-gray);
    padding: 5rem 0;
}

.certificaciones-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
}

.certificaciones-info p {
    font-size: 1.1rem;
    margin-bottom: 2rem;
}

.certificaciones-cards {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
}

.certificacion-card {
    background-color: var(--color-light);
    border-radius: var(--border-radius-md);
    padding: 2rem;
    box-shadow: var(--shadow-sm);
    transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

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

.certificacion-icon {
    font-size: 2.5rem;
    color: var(--color-secondary);
    margin-bottom: 1rem;
    text-align: center;
}

.certificacion-card h3 {
    font-size: 1.3rem;
    margin-bottom: 1rem;
    color: var(--color-primary);
}

.certificado-preview {
    position: relative;
}

.certificado-imagen {
    position: relative;
    border-radius: var(--border-radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-md);
}

.certificado-imagen img {
    width: 100%;
    height: auto;
    display: block;
}

.certificado-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    background-color: rgba(26, 54, 93, 0.8);
    color: var(--color-light);
    padding: 1rem;
    text-align: center;
    font-family: 'Montserrat', sans-serif;
    font-weight: 600;
}

.certificado-sellos {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin-top: 1.5rem;
}

.sello {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
}

.sello i {
    font-size: 2rem;
    color: var(--color-primary);
}

.sello span {
    font-family: 'Montserrat', sans-serif;
    font-weight: 600;
    font-size: 0.9rem;
}

/* Sección Inversión */
.inversion {
    background-color: var(--color-light);
    padding: 5rem 0;
}

.inversion-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 3rem;
}

.planes-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
}

.plan-card {
    background-color: var(--color-gray);
    border-radius: var(--border-radius-md);
    padding: 2rem;
    box-shadow: var(--shadow-sm);
    position: relative;
    transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

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

.plan-destacado {
    background-color: var(--color-light);
    border: 2px solid var(--color-accent);
    z-index: 2;
    transform: scale(1.05);
}

.plan-badge {
    position: absolute;
    top: -15px;
    right: 20px;
    background-color: var(--color-accent);
    color: var(--color-light);
    padding: 0.5rem 1rem;
    border-radius: var(--border-radius-sm);
    font-family: 'Montserrat', sans-serif;
    font-weight: 600;
    font-size: 0.9rem;
    animation: pulsate 2s infinite;
}

.plan-header {
    text-align: center;
    margin-bottom: 2rem;
}

.plan-header h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--color-primary);
}

.plan-price {
    font-family: 'Montserrat', sans-serif;
    margin-bottom: 0.5rem;
}

.plan-price .currency {
    font-size: 1.5rem;
    font-weight: 600;
    vertical-align: top;
}

.plan-price .amount {
    font-size: 3rem;
    font-weight: 700;
}

.plan-price .period {
    font-size: 1rem;
    color: var(--color-gray-dark);
}

.plan-savings {
    color: #2ECC71;
    font-weight: 600;
    font-size: 1.1rem;
    margin-top: 0.5rem;
}

.plan-features {
    margin-bottom: 2rem;
}

.plan-features ul {
    list-style: none;
    padding: 0;
}

.plan-features li {
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.plan-features i {
    color: #2ECC71;
}

.feature-destacado {
    margin-top: 1rem;
    padding-top: 1rem;
    border-top: 1px solid rgba(0, 0, 0, 0.1);
}

.feature-destacado i {
    color: var(--color-accent);
}

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

.becas-counter-container {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.becas-counter {
    background-color: var(--color-gray);
    border-radius: var(--border-radius-md);
    padding: 2rem;
    text-align: center;
    box-shadow: var(--shadow-sm);
}

.becas-counter h3 {
    font-size: 1.3rem;
    margin-bottom: 1.5rem;
    color: var(--color-primary);
}

.counter-display {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.counter-number {
    font-size: 3rem;
    font-weight: 700;
    font-family: 'Montserrat', sans-serif;
    color: var(--color-accent);
}

.counter-text {
    font-size: 1.2rem;
    font-family: 'Montserrat', sans-serif;
}

.counter-bar {
    height: 10px;
    background-color: #e0e0e0;
    border-radius: 5px;
    margin-bottom: 1.5rem;
    overflow: hidden;
}

.counter-progress {
    height: 100%;
    background-color: var(--color-accent);
    width: 50%; /* Será actualizado por JS */
}

.counter-info {
    font-style: italic;
    color: var(--color-gray-dark);
}

.becas-info {
    background-color: var(--color-gray);
    border-radius: var(--border-radius-md);
    padding: 2rem;
    box-shadow: var(--shadow-sm);
}

.becas-info h4 {
    font-size: 1.2rem;
    margin-bottom: 1rem;
    color: var(--color-primary);
}

/* Botón de acento */
.btn-accent {
    background-color: #2ECC71;
    color: var(--color-light);
}

.btn-accent:hover {
    background-color: #27ae60;
    color: var(--color-light);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* Animaciones adicionales */
@keyframes pulsate {
    0% { transform: scale(1); }
    50% { transform: scale(1.05); }
    100% { transform: scale(1); }
}

.pulsate {
    animation: pulsate 0.5s ease-in-out;
}

/* Media Queries */
@media (max-width: 992px) {
    html {
        font-size: 15px;
    }
    
    .descripcion-content,
    .metodologia-content,
    .certificaciones-content,
    .inversion-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .planes-container {
        grid-template-columns: 1fr;
    }
    
    .tab-pane-content {
        grid-template-columns: 1fr;
    }
    
    .timeline::before {
        left: 30px;
    }
    
    .timeline-item:nth-child(odd),
    .timeline-item:nth-child(even) {
        padding-left: 80px;
        padding-right: 0;
        text-align: left;
    }
    
    .timeline-dot {
        left: 30px;
    }
}

@media (max-width: 768px) {
    section {
        padding: 4rem 0;
    }
    
    .hero {
        height: auto;
        min-height: 500px;
        padding-top: 100px;
        padding-bottom: 3rem;
    }
    
    .hero h1 {
        font-size: 1.8rem;
    }
    
    .hero h2 {
        font-size: 2.5rem;
    }
    
    .hero h3 {
        font-size: 1.5rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .nav-links {
        position: fixed;
        top: 70px;
        left: 0;
        width: 100%;
        height: 0;
        background-color: var(--color-light);
        flex-direction: column;
        overflow: hidden;
        transition: height var(--transition-normal);
        box-shadow: var(--shadow-md);
    }
    
    .nav-links.active {
        height: auto;
        padding: 1.5rem 0;
    }
    
    .nav-links li {
        margin: 1rem 0;
    }
    
    .menu-toggle {
        display: block;
    }
    
    .descripcion-features,
    .metodologia-features {
        grid-template-columns: 1fr;
    }
    
    .final-cta {
        flex-direction: column;
        align-items: center;
    }
}

@media (max-width: 576px) {
    html {
        font-size: 14px;
    }
    
    .countdown-item {
        min-width: 60px;
        padding: 0.8rem;
    }
    
    .countdown-item span:first-child {
        font-size: 1.5rem;
    }
    
    .modal-content {
        padding: 1.5rem;
        margin: 10% auto;
    }
    
    .pdf-container {
        height: 60vh;
    }
    
    .modal-buttons {
        flex-direction: column;
    }
}

/* Botón flotante PDF: pulsación + onda */
.pdf-float-button {
    position: fixed;
    bottom: 20px;
    right: 20px;
    z-index: 1000;
}

.pdf-float-button a {
    background-color: #FF6B6B; /* color del botón flotante */
    color: white;
    font-size: 1.5rem;
    padding: 16px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
    animation: pulse-grow 2.5s infinite;
    position: relative;
    z-index: 2;
}

/* Animación del ícono PDF */
@keyframes pulse-grow {
    0% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.15);
    }
    100% {
        transform: scale(1);
    }
}

/* Anillo animado tipo onda */
.pulse-ring {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 100%;
    height: 100%;
    background: rgba(192, 57, 43, 0.5);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    z-index: 1;
    animation: ripple 2.5s infinite ease-out;
}

/* Expansión y desvanecimiento del anillo */
@keyframes ripple {
    0% {
        transform: translate(-50%, -50%) scale(1);
        opacity: 0.6;
    }
    100% {
        transform: translate(-50%, -50%) scale(2.8);
        opacity: 0;
    }
}