/* Reset y variables CSS */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary: #FF6B35;
    --primary-dark: #E55A2B;
    --primary-light: #FF8C5A;
    --secondary: #27AE60;
    --secondary-dark: #219653;
    --accent: #2C3E50;
    --light: #FAFAFA;
    --light-gray: #ECF0F1;
    --dark: #2C3E50;
    --text: #34495E;
    --text-light: #7F8C8D;
    --shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.15);
    --border-radius: 12px;
    --transition: all 0.3s ease;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--text);
    background-color: var(--light);
    overflow-x: hidden;
}

/* Layout Principal */
.app-container {
    display: flex;
    min-height: 100vh;
}

/* Sidebar/Navegación Lateral */
.sidebar {
    width: 280px;
    background: var(--dark);
    color: white;
    position: fixed;
    height: 100vh;
    overflow-y: auto;
    z-index: 1000;
    transition: transform 0.3s ease;
}

.sidebar-header {
    padding: 20px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    justify-content: center;
    margin-bottom: 10px;
}

.logo-icon {
    width: 40px;
    height: 40px;
    background: var(--primary);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: bold;
    font-size: 1.2rem;
}

.logo h1 {
    font-size: 1.4rem;
    color: white;
}

.logo span {
    color: var(--primary);
}

.sidebar-nav {
    padding: 20px 0;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 15px 25px;
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: var(--transition);
    border-left: 4px solid transparent;
    cursor: pointer;
}

.nav-item:hover, 
.nav-item.active {
    background: rgba(255, 255, 255, 0.1);
    color: white;
    border-left-color: var(--primary);
}

.nav-item i {
    width: 20px;
    text-align: center;
    font-size: 1.1rem;
}

/* Contenido Principal */
.main-content {
    flex: 1;
    margin-left: 280px;
    transition: margin-left 0.3s ease;
}

/* Header Móvil */
.mobile-header {
    display: none;
    background: white;
    box-shadow: var(--shadow);
    padding: 15px 20px;
    position: sticky;
    top: 0;
    z-index: 999;
    align-items: center;
    justify-content: space-between;
}

.mobile-header .logo {
    justify-content: flex-start;
}

.mobile-menu-btn {
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--dark);
    cursor: pointer;
    padding: 5px;
    border-radius: 5px;
    transition: var(--transition);
}

.mobile-menu-btn:hover {
    background: var(--light-gray);
}

/* Secciones */
.section {
    display: none;
    padding: 30px;
    animation: fadeIn 0.5s ease;
}

.section.active {
    display: block;
}

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

.section-title {
    margin-bottom: 30px;
    text-align: center;
}

.section-title h2 {
    font-size: 2.2rem;
    color: var(--dark);
    margin-bottom: 10px;
    font-weight: 700;
}

.section-title p {
    font-size: 1.1rem;
    color: var(--text-light);
    max-width: 600px;
    margin: 0 auto;
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: white;
    padding: 80px 0;
    text-align: center;
    border-radius: 0 0 20px 20px;
    margin-bottom: 40px;
}

.hero-content h1 {
    font-size: 3rem;
    margin-bottom: 20px;
    font-weight: 700;
}

.hero-content .highlight {
    color: var(--light);
    text-shadow: 2px 2px 4px rgba(0,0,0,0.3);
}

.hero-subtitle {
    font-size: 1.3rem;
    margin-bottom: 40px;
    opacity: 0.9;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.hero-features {
    display: flex;
    justify-content: center;
    gap: 30px;
    margin-bottom: 40px;
    flex-wrap: wrap;
}

.feature {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 500;
    background: rgba(255, 255, 255, 0.1);
    padding: 10px 20px;
    border-radius: 50px;
    backdrop-filter: blur(10px);
    transition: var(--transition);
}

.feature:hover {
    transform: translateY(-2px);
    background: rgba(255, 255, 255, 0.2);
}

.feature i {
    font-size: 1.2rem;
}

/* Botones */
.cta-button {
    background: white;
    color: var(--primary);
    padding: 12px 30px;
    border: none;
    border-radius: 25px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
    display: inline-block;
    text-align: center;
}

.cta-button:hover {
    background: var(--light-gray);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.cta-button.small {
    padding: 10px 20px;
    font-size: 0.9rem;
}

.cta-button.secondary {
    background: transparent;
    border: 2px solid white;
    color: white;
}

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

/* Acerca de Mí */
.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    align-items: start;
}

.profile-card {
    background: white;
    border-radius: 15px;
    padding: 30px;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

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

.profile-header {
    text-align: center;
    margin-bottom: 25px;
}

.profile-header h3 {
    font-size: 2rem;
    color: var(--dark);
    margin-bottom: 10px;
}

.profile-title {
    color: var(--primary);
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 5px;
}

.profile-subtitle {
    color: var(--text);
    margin-bottom: 3px;
}

.profile-postgraduate {
    color: var(--secondary);
    font-style: italic;
}

/* Video Section */
.video-section {
    margin: 30px 0;
}

.video-wrapper {
    border-radius: 15px;
    overflow: hidden;
    background: var(--dark);
    margin-bottom: 20px;
    box-shadow: var(--shadow-lg);
    position: relative;
}

.video-wrapper video {
    width: 100%;
    height: 400px;
    object-fit: cover;
    display: block;
}

.video-description {
    text-align: center;
    padding: 15px;
}

.video-description p {
    color: var(--text-light);
    font-size: 1.1rem;
    margin: 0;
    font-style: italic;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    margin: 25px 0;
}

.stat-card {
    background: var(--light-gray);
    padding: 20px 15px;
    border-radius: 10px;
    text-align: center;
    transition: var(--transition);
}

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

.stat-icon {
    width: 50px;
    height: 50px;
    background: var(--primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 10px;
    color: white;
    font-size: 1.3rem;
}

.stat-number {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 5px;
}

.stat-label {
    color: var(--text-light);
    font-size: 0.9rem;
}

.philosophy-card {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: white;
    padding: 30px;
    border-radius: 15px;
    margin-top: 25px;
    transition: var(--transition);
}

.philosophy-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

.philosophy-content h4 {
    margin-bottom: 15px;
    font-size: 1.5rem;
}

.philosophy-content p {
    font-style: italic;
    line-height: 1.6;
}

/* Timeline */
.timeline {
    margin: 20px 0;
}

.timeline-item {
    display: flex;
    gap: 20px;
    margin-bottom: 25px;
    padding-bottom: 25px;
    border-bottom: 1px solid var(--light-gray);
}

.timeline-item:last-child {
    border-bottom: none;
    margin-bottom: 0;
    padding-bottom: 0;
}

.timeline-period {
    min-width: 120px;
    background: var(--primary);
    color: white;
    padding: 8px 12px;
    border-radius: 20px;
    text-align: center;
    font-weight: 600;
    font-size: 0.9rem;
    height: fit-content;
}

.timeline-content h5 {
    color: var(--dark);
    margin-bottom: 5px;
    font-size: 1.1rem;
}

.timeline-company {
    color: var(--primary);
    font-weight: 600;
    margin-bottom: 8px;
}

.timeline-description {
    color: var(--text-light);
    line-height: 1.5;
}

/* Servicios */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 25px;
}

.service-card {
    background: white;
    border-radius: 15px;
    padding: 30px;
    box-shadow: var(--shadow);
    text-align: center;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--primary);
    transform: scaleX(0);
    transition: var(--transition);
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
}

.service-card:hover::before {
    transform: scaleX(1);
}

.service-icon {
    width: 70px;
    height: 70px;
    background: var(--primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    color: white;
    font-size: 1.8rem;
    transition: var(--transition);
}

.service-card:hover .service-icon {
    transform: scale(1.1) rotate(5deg);
}

.service-card h3 {
    color: var(--dark);
    margin-bottom: 15px;
    font-size: 1.4rem;
}

.service-card p {
    color: var(--text-light);
    margin-bottom: 20px;
    line-height: 1.6;
}

.service-features {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    justify-content: center;
}

.service-features li {
    background: var(--light-gray);
    padding: 5px 15px;
    border-radius: 20px;
    font-size: 0.9rem;
    color: var(--text);
    list-style: none;
    transition: var(--transition);
}

.service-features li:hover {
    background: var(--primary);
    color: white;
    transform: translateY(-2px);
}

/* Servicios Especializados */
.specialized-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 20px;
}

.specialized-card {
    background: white;
    border-radius: 15px;
    padding: 25px;
    box-shadow: var(--shadow);
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.specialized-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--primary);
    transform: scaleX(0);
    transition: var(--transition);
}

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

.specialized-card:hover::before {
    transform: scaleX(1);
}

.specialized-icon {
    width: 60px;
    height: 60px;
    background: var(--primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 15px;
    color: white;
    font-size: 1.5rem;
    transition: var(--transition);
}

.specialized-card:hover .specialized-icon {
    transform: scale(1.1) rotate(10deg);
}

.specialized-card h3 {
    color: var(--dark);
    margin-bottom: 10px;
    font-size: 1.3rem;
}

.specialized-card p {
    color: var(--text-light);
    line-height: 1.5;
}

/* Recursos */
.resources-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 25px;
}

.resource-card {
    background: white;
    border-radius: 15px;
    padding: 30px;
    box-shadow: var(--shadow);
    display: flex;
    flex-direction: column;
    height: 100%;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.resource-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--primary);
    transform: scaleX(0);
    transition: var(--transition);
}

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

.resource-card:hover::before {
    transform: scaleX(1);
}

.resource-icon {
    width: 70px;
    height: 70px;
    background: var(--primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
    color: white;
    font-size: 1.8rem;
    transition: var(--transition);
}

.resource-card:hover .resource-icon {
    transform: scale(1.1) rotate(5deg);
}

.resource-card h3 {
    color: var(--dark);
    margin-bottom: 15px;
    font-size: 1.4rem;
}

.resource-card p {
    color: var(--text-light);
    margin-bottom: 20px;
    line-height: 1.6;
    flex-grow: 1;
}

.resource-features {
    display: flex;
    gap: 10px;
    margin-bottom: 20px;
    flex-wrap: wrap;
}

.feature-badge {
    background: var(--light-gray);
    padding: 5px 12px;
    border-radius: 15px;
    font-size: 0.8rem;
    color: var(--text);
    transition: var(--transition);
}

.feature-badge:hover {
    background: var(--primary);
    color: white;
    transform: translateY(-2px);
}

.resource-button {
    background: var(--primary);
    color: white;
    border: none;
    padding: 12px 20px;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    width: 100%;
}

.resource-button:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
}

/* Herramientas */
.tools-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
    margin-bottom: 40px;
}

.tool-card {
    background: white;
    border-radius: 15px;
    padding: 25px;
    box-shadow: var(--shadow);
    display: flex;
    flex-direction: column;
    border: 1px solid var(--light-gray);
    cursor: pointer;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.tool-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--primary);
    transform: scaleX(0);
    transition: var(--transition);
}

.tool-card:hover, 
.tool-card.active {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary);
}

.tool-card.active {
    background: var(--light-gray);
}

.tool-card:hover::before,
.tool-card.active::before {
    transform: scaleX(1);
}

.tool-icon {
    width: 60px;
    height: 60px;
    background: var(--primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
    color: white;
    font-size: 1.5rem;
    transition: var(--transition);
}

.tool-card:hover .tool-icon {
    transform: scale(1.1) rotate(10deg);
}

.tool-content {
    flex-grow: 1;
    margin-bottom: 20px;
}

.tool-content h3 {
    color: var(--dark);
    margin-bottom: 10px;
    font-size: 1.3rem;
}

.tool-content p {
    color: var(--text-light);
    line-height: 1.6;
    margin-bottom: 15px;
}

.tool-features {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.feature-tag {
    background: var(--light-gray);
    padding: 4px 10px;
    border-radius: 12px;
    font-size: 0.75rem;
    color: var(--text);
    transition: var(--transition);
}

.feature-tag:hover {
    background: var(--primary);
    color: white;
    transform: translateY(-2px);
}

.tool-button {
    background: var(--primary);
    color: white;
    border: none;
    padding: 10px 15px;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    width: 100%;
}

.tool-button:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
}

/* Contenedor de herramientas */
.tool-container {
    background: white;
    border-radius: 15px;
    padding: 40px;
    box-shadow: var(--shadow);
    border: 1px solid var(--light-gray);
    min-height: 400px;
    transition: var(--transition);
}

.tool-container:hover {
    box-shadow: var(--shadow-lg);
}

.tool-placeholder {
    text-align: center;
    padding: 60px 20px;
    color: var(--text-light);
}

.tool-placeholder i {
    font-size: 4rem;
    margin-bottom: 20px;
    color: var(--light-gray);
}

.tool-placeholder h3 {
    margin-bottom: 10px;
    color: var(--dark);
}

/* MaidanaChat Iframe */
.maidana-chat-iframe {
    width: 100%;
    height: 600px;
    border: none;
    border-radius: 10px;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.maidana-chat-iframe:hover {
    box-shadow: var(--shadow-lg);
}

/* Contacto */
.contact-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    align-items: start;
}

.contact-info {
    background: white;
    border-radius: 15px;
    padding: 30px;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

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

.contact-info h3 {
    color: var(--dark);
    margin-bottom: 25px;
    font-size: 1.6rem;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.contact-item {
    display: flex;
    gap: 15px;
    align-items: flex-start;
    transition: var(--transition);
}

.contact-item:hover {
    transform: translateX(5px);
}

.contact-item i {
    width: 45px;
    height: 45px;
    background: var(--primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.2rem;
    flex-shrink: 0;
    transition: var(--transition);
}

.contact-item:hover i {
    transform: scale(1.1);
}

.contact-item h4 {
    color: var(--dark);
    margin-bottom: 5px;
    font-size: 1.1rem;
}

.contact-item p {
    color: var(--text-light);
}

.contact-form {
    background: white;
    padding: 30px;
    border-radius: 15px;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

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

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    color: var(--dark);
    font-weight: 500;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 15px;
    border: 1px solid var(--light-gray);
    border-radius: 8px;
    font-family: inherit;
    font-size: 1rem;
    transition: var(--transition);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(255, 107, 53, 0.1);
}

.form-group textarea {
    min-height: 120px;
    resize: vertical;
}

/* Chat de Telegram */
.telegram-chat {
    position: fixed;
    bottom: 30px;
    right: 30px;
    z-index: 1000;
}

.chat-button {
    width: 60px;
    height: 60px;
    background: var(--primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.5rem;
    cursor: pointer;
    box-shadow: var(--shadow-lg);
    transition: var(--transition);
    position: relative;
}

.chat-button:hover {
    background: var(--primary-dark);
    transform: scale(1.1);
}

.chat-notification {
    position: absolute;
    top: -5px;
    right: -5px;
    background: var(--secondary);
    color: white;
    width: 24px;
    height: 24px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.8rem;
    font-weight: bold;
    display: none;
}

.chat-window {
    position: absolute;
    bottom: 80px;
    right: 0;
    width: 350px;
    height: 500px;
    background: white;
    border-radius: 15px;
    box-shadow: var(--shadow-lg);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: var(--transition);
}

.chat-window.active {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.chat-header {
    background: var(--primary);
    color: white;
    padding: 20px;
    display: flex;
    align-items: center;
    gap: 15px;
}

.chat-avatar {
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.chat-header:hover .chat-avatar {
    transform: scale(1.1);
}

.chat-info h4 {
    margin-bottom: 5px;
    font-size: 1.1rem;
}

.chat-status {
    font-size: 0.8rem;
    opacity: 0.8;
}

.close-chat {
    background: none;
    border: none;
    color: white;
    font-size: 1.2rem;
    cursor: pointer;
    margin-left: auto;
    padding: 5px;
    border-radius: 50%;
    transition: var(--transition);
}

.close-chat:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: scale(1.1);
}

.chat-messages {
    flex-grow: 1;
    padding: 20px;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.message {
    display: flex;
    gap: 10px;
    max-width: 80%;
    animation: fadeIn 0.3s ease;
}

.bot-message {
    align-self: flex-start;
}

.user-message {
    align-self: flex-end;
    flex-direction: row-reverse;
}

.message-avatar {
    width: 30px;
    height: 30px;
    background: var(--light-gray);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.8rem;
    flex-shrink: 0;
    transition: var(--transition);
}

.message:hover .message-avatar {
    transform: scale(1.1);
}

.user-message .message-avatar {
    background: var(--primary);
    color: white;
}

.message-content {
    background: var(--light-gray);
    padding: 12px 15px;
    border-radius: 15px;
    position: relative;
    transition: var(--transition);
}

.message:hover .message-content {
    transform: translateY(-2px);
}

.user-message .message-content {
    background: var(--primary);
    color: white;
}

.message-content p {
    margin-bottom: 5px;
    line-height: 1.4;
}

.message-time {
    font-size: 0.7rem;
    opacity: 0.7;
}

.chat-input-container {
    padding: 20px;
    border-top: 1px solid var(--light-gray);
}

.user-info-form h5 {
    margin-bottom: 15px;
    color: var(--dark);
    text-align: center;
}

.form-row {
    display: flex;
    gap: 10px;
    margin-bottom: 15px;
}

.user-input {
    flex: 1;
    padding: 10px 12px;
    border: 1px solid var(--light-gray);
    border-radius: 8px;
    font-size: 0.9rem;
    transition: var(--transition);
}

.user-input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 2px rgba(255, 107, 53, 0.1);
}

.chat-input {
    display: flex;
    gap: 10px;
}

.chat-input input {
    flex-grow: 1;
    padding: 12px 15px;
    border: 1px solid var(--light-gray);
    border-radius: 25px;
    transition: var(--transition);
}

.chat-input input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 2px rgba(255, 107, 53, 0.1);
}

.send-button {
    background: var(--primary);
    color: white;
    border: none;
    width: 45px;
    height: 45px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition);
}

.send-button:hover {
    background: var(--primary-dark);
    transform: scale(1.05);
}

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

@keyframes slideIn {
    from { 
        transform: translateX(-100%); 
    }
    to { 
        transform: translateX(0); 
    }
}

/* Efectos de carga */
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: white;
    animation: spin 1s ease-in-out infinite;
}

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

/* Responsive */
@media (max-width: 1024px) {
    .sidebar {
        transform: translateX(-100%);
    }
    
    .sidebar.active {
        transform: translateX(0);
    }
    
    .main-content {
        margin-left: 0;
    }
    
    .mobile-header {
        display: flex;
    }
    
    .about-content {
        grid-template-columns: 1fr;
    }
    
    .contact-container {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .hero-content h1 {
        font-size: 2.2rem;
    }
    
    .hero-subtitle {
        font-size: 1.1rem;
    }
    
    .hero-features {
        gap: 15px;
    }
    
    .feature {
        padding: 8px 15px;
        font-size: 0.9rem;
    }
    
    .services-grid,
    .resources-grid,
    .tools-grid {
        grid-template-columns: 1fr;
    }
    
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .chat-window {
        width: calc(100vw - 30px);
        right: 15px;
    }
    
    .video-wrapper video {
        height: 300px;
    }
    
    .section {
        padding: 20px;
    }
}

@media (max-width: 480px) {
    .section {
        padding: 20px 15px;
    }
    
    .section-title h2 {
        font-size: 1.8rem;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .service-card,
    .resource-card,
    .tool-card {
        padding: 20px;
    }
    
    .tool-container {
        padding: 20px;
    }
    
    .video-wrapper video {
        height: 250px;
    }
    
    .form-row {
        flex-direction: column;
    }
    
    .hero-content h1 {
        font-size: 1.8rem;
    }
    
    .chat-window {
        height: 400px;
    }
}

/* Overlay para móvil */
.mobile-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: 999;
}

.mobile-overlay.active {
    display: block;
}

/* Estados de video */
.video-loading {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: var(--primary);
    font-size: 2rem;
}

.video-error {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background: var(--light);
    color: var(--text-light);
    text-align: center;
    padding: 2rem;
}

.video-error i {
    font-size: 3rem;
    color: var(--primary);
    margin-bottom: 1rem;
}