/* Variables globales */
:root {
    --primary-color: #1a237e;
    --secondary-color: #0d47a1;
    --accent-color: #2962ff;
    --text-color: #333;
    --light-bg: #f5f5f5;
    --white: #ffffff;
    --international-color: #e91e63;
}

/* Estilos generales */
body {
    font-family: 'Roboto', sans-serif;
    line-height: 1.6;
    color: var(--text-color);
}

/* Header */
.header {
    background-color: var(--white);
    /*padding: 1rem 0;*/
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.navbar {
    padding: 0;
    width: 100%;
}

.navbar-brand {
    color: var(--primary-color) !important;
    font-size: 1.5rem;
    font-weight: bold;
    padding: 0;
}

.logo {
    height: 40px;
    margin-right: 10px;
}

.nav-link {
    color: var(--primary-color) !important;
    font-weight: 600;
    padding: 0.5rem 1rem !important;
    transition: all 0.3s ease;
}

.nav-link:hover {
    color: var(--accent-color) !important;
    transform: translateY(-2px);
}

/* Ajuste para el botón del menú móvil */
.navbar-toggler {
    border-color: var(--primary-color);
}

.navbar-toggler-icon {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba(26, 35, 126, 1)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e") !important;
}

/* Hero Section */
.hero {
    padding: 120px 0 60px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: var(--white);
}

.hero h1 {
    font-size: 3rem;
    font-weight: bold;
    margin-bottom: 1rem;
}

.hero .subtitle {
    font-size: 1.8rem;
    color: var(--accent-color);
    margin-bottom: 1.5rem;
}

.hero .lead {
    font-size: 1.25rem;
    margin-bottom: 1.5rem;
}

.hero .description {
    font-size: 1.1rem;
    margin-bottom: 2rem;
    opacity: 0.9;
}

.event-details {
    background: rgba(255, 255, 255, 0.1);
    padding: 2rem;
    border-radius: 10px;
    margin-top: 2rem;
}

.detail-item {
    display: flex;
    align-items: center;
    margin-bottom: 1.5rem;
}

.detail-item i {
    font-size: 1.5rem;
    margin-right: 1rem;
    color: var(--accent-color);
}

.detail-item span {
    font-size: 1.1rem;
}

/* Agenda Section */
.agenda {
    padding: 4rem 0;
    background: #f8f9fa;
}

/* Date Selector */
.date-selector {
    display: flex;
    gap: 1rem;
    margin-bottom: 2rem;
}

.date-card {
    flex: 1;
    background: #fff;
    border: 2px solid #e9ecef;
    border-radius: 1rem;
    padding: 1.5rem;
    cursor: pointer;
    transition: all 0.3s ease;
    text-align: center;
}

.date-card.active {
    background: linear-gradient(135deg, #002D72 0%, #004AAD 100%);
    border-color: transparent;
    color: white;
    transform: translateY(-3px);
    box-shadow: 0 10px 20px rgba(0,0,0,0.1);
}

.date-number {
    font-size: 2.5rem;
    font-weight: 700;
    line-height: 1;
    margin-bottom: 0.5rem;
}

.date-info {
    font-size: 0.9rem;
}

.date-location {
    font-weight: 600;
    margin-top: 0.5rem;
}

.date-details {
    font-size: 0.8rem;
    opacity: 0.8;
}

/* Event Filters */
.event-filters {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    margin-bottom: 2rem;
    justify-content: center;
    transition: gap 0.3s ease;
}

.filter-btn {
    background: #fff;
    border: none;
    padding: 0.8rem 1.5rem;
    border-radius: 2rem;
    font-size: 0.9rem;
    color: #495057;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    opacity: 1;
    transform: scale(1);
}

.filter-btn i {
    font-size: 1rem;
}

.filter-btn:hover {
    background: #f8f9fa;
    transform: translateY(-2px);
}

.filter-btn.active {
    background: #002D72;
    color: white;
}

.filter-btn.disabled {
    opacity: 0.5;
    pointer-events: none;
    transform: scale(0.95);
}

.filter-btn[style*="display: none"] {
    opacity: 0;
    transform: scale(0.9);
    margin: 0;
    padding: 0;
    width: 0;
    height: 0;
    overflow: hidden;
}

/* Timeline Styles */
.timeline-container {
    position: relative;
    padding: 2rem;
    background: #fff;
    border-radius: 20px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.05);
}

.timeline-events {
    position: relative;
    padding-left: 3rem;
}

.timeline-events::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 2px;
    background: #e9ecef;
}

.timeline-event {
    position: relative;
    margin-bottom: 2rem;
    padding: 1.5rem;
    background: #f8f9fa;
    border-radius: 15px;
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.3s ease;
    border-left: 4px solid transparent;
}

.timeline-event::before {
    content: '';
    position: absolute;
    left: -3rem;
    top: 2rem;
    width: 1rem;
    height: 1rem;
    border-radius: 50%;
    background: #fff;
    border: 2px solid #002D72;
    z-index: 1;
}

/* Event Types */
.timeline-event.registro {
    border-left-color: #00BCD4;
}

.timeline-event.plenaria {
    border-left-color: #673AB7;
}

.timeline-event.conferencia {
    border-left-color: #4CAF50;
}

.timeline-event.receso {
    border-left-color: #FF9800;
}

.timeline-event.actividad {
    border-left-color: #2196F3;
}

.timeline-event.registro::before { background: #00BCD4; border-color: #03A9F4; }
.timeline-event.plenaria::before { background: #673AB7; border-color: #9C27B0; }
.timeline-event.conferencia::before { background: #4CAF50; border-color: #8BC34A; }
.timeline-event.receso::before { background: #FF9800; border-color: #FF5722; }
.timeline-event.actividad::before { background: #2196F3; border-color: #1976D2; }

.timeline-event.visible {
    opacity: 1;
    transform: translateY(0);
}

.timeline-time {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: #fff;
    border-radius: 20px;
    font-weight: 600;
    color: #495057;
    margin-bottom: 0.5rem;
    box-shadow: 0 2px 4px rgba(0,0,0,0.05);
}

.timeline-content {
    padding: 0.5rem;
}

.timeline-title {
    font-size: 1.1rem;
    font-weight: 600;
    color: #212529;
    margin-bottom: 1rem;
}

.timeline-speaker {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1rem;
    padding: 0.8rem;
    background: #fff;
    border-radius: 10px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.05);
}

.speaker-flag {
    width: 24px;
    height: auto;
    border-radius: 4px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.speaker-info {
    flex: 1;
}

.speaker-info strong {
    display: block;
    color: #212529;
    margin-bottom: 0.2rem;
}

.speaker-info span {
    font-size: 0.9rem;
    color: #6c757d;
}

.timeline-details {
    display: flex;
    flex-wrap: wrap;
    gap: 0.8rem;
    margin-top: 1rem;
}

.timeline-detail {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: #fff;
    border-radius: 20px;
    font-size: 0.9rem;
    color: #495057;
    box-shadow: 0 2px 4px rgba(0,0,0,0.05);
}

.timeline-detail i {
    color: #6c757d;
}

@media (max-width: 768px) {
    .timeline-container {
        padding: 1rem;
    }

    .timeline-events {
        padding-left: 2rem;
    }

    .timeline-event {
        padding: 1rem;
        margin-bottom: 1.5rem;
    }

    .timeline-event::before {
        left: -2rem;
        width: 0.8rem;
        height: 0.8rem;
    }

    .timeline-speaker {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.5rem;
    }

    .timeline-details {
        flex-direction: column;
    }

    .timeline-detail {
        width: 100%;
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.timeline-event {
    animation: fadeInUp 0.5s ease forwards;
    animation-delay: calc(var(--item-index) * 0.1s);
}

/* Event Cards */
.event-card, .conference-card {
    background: var(--white);
    border-radius: 1rem;
    overflow: hidden;
    box-shadow: 0 4px 15px rgba(0,0,0,0.05);
    transition: all 0.3s ease;
}

.event-card:hover, .conference-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(0,0,0,0.1);
}

.event-header, .conference-header {
    padding: 1.25rem 1.5rem;
    color: var(--white);
    display: flex;
    align-items: center;
    gap: 1rem;
}

/* Header Types */
.event-header.registro { background: linear-gradient(135deg, #00BCD4, #03A9F4); }
.event-header.plenaria { background: linear-gradient(135deg, #673AB7, #9C27B0); }
.event-header.receso { background: linear-gradient(135deg, #FF9800, #FF5722); }
.event-header.almuerzo { background: linear-gradient(135deg, #4CAF50, #8BC34A); }
.event-header.mesas { background: linear-gradient(135deg, #2196F3, #1976D2); }
.event-header.closing { background: linear-gradient(135deg, #E91E63, #C2185B); }

.conference-header.sociales { background: linear-gradient(135deg, #9C27B0, #E91E63); }
.conference-header.agricolas { background: linear-gradient(135deg, #4CAF50, #8BC34A); }
.conference-header.medicas { background: linear-gradient(135deg, #2196F3, #03A9F4); }
.conference-header.naturales { background: linear-gradient(135deg, #FF9800, #FF5722); }
.conference-header.ingenieria { background: linear-gradient(135deg, #607D8B, #90A4AE); }
.conference-header.tecnologia { background: linear-gradient(135deg, #00BCD4, #0097A7); }

.event-header i, .conference-header i {
    font-size: 1.5rem;
    opacity: 0.9;
}

.event-header h3, .conference-header h3 {
    margin: 0;
    font-size: 1.25rem;
    font-weight: 600;
}

.event-body, .conference-body {
    padding: 1.5rem;
}

/* Conference Grid */
.conferencias-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
    margin-top: 1rem;
}

.conference-title {
    font-size: 1rem;
    color: var(--text-color);
    line-height: 1.4;
    margin: 0;
}

/* Event Meta */
.event-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-top: 1rem;
}

.activity {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.4rem 1rem;
    background: rgba(0,0,0,0.05);
    border-radius: 2rem;
    font-size: 0.9rem;
    color: #666;
    transition: all 0.3s ease;
}

.activity:hover {
    background: rgba(0,0,0,0.08);
    transform: translateX(3px);
}

.activity i {
    font-size: 1rem;
    opacity: 0.8;
}

/* Participants Grid */
.participants-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
    gap: 1rem;
    margin: 1.5rem 0;
}

.participant {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem;
    background: rgba(0,0,0,0.03);
    border-radius: 0.75rem;
    transition: all 0.3s ease;
}

.participant:hover {
    background: rgba(0,0,0,0.05);
    transform: translateY(-2px);
}

.participant-flag {
    width: 1.5rem;
    height: auto;
    border-radius: 3px;
}

.participant span {
    font-size: 0.9rem;
    color: var(--text-color);
}

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

/* Responsive */
@media (max-width: 768px) {
    .timeline {
        padding-left: 1.5rem;
    }

    .timeline-item::before {
        left: -1.85rem;
    }

    .conferencias-grid {
        grid-template-columns: 1fr;
    }

    .participants-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .event-header, .conference-header {
        padding: 1rem;
    }

    .event-body, .conference-body {
        padding: 1.25rem;
    }

    .activity {
        padding: 0.3rem 0.75rem;
        font-size: 0.85rem;
    }
}

/* Dark Mode Support */
@media (prefers-color-scheme: dark) {
    .event-card, .conference-card {
        background: rgba(255,255,255,0.05);
    }

    .time {
        background: rgba(255,255,255,0.1);
    }

    .activity {
        background: rgba(255,255,255,0.1);
    }

    .participant {
        background: rgba(255,255,255,0.05);
    }
}

/* Ponentes Section */
.ponentes {
    background-color: #f8f9fa;
    padding: 80px 0;
}

/* Estilos para los botones de filtrado */
.filter-buttons {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 30px;
}

.filter-btn {
    padding: 10px 25px;
    border: none;
    border-radius: 25px;
    background: white;
    color: #333;
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

.filter-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
}

.filter-btn.active {
    background: #1a237e;
    color: white;
    transform: translateY(-2px);
}

/* Animaciones para las tarjetas de ponentes */
[data-category] {
    transition: all 0.3s ease;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

[data-category] {
    animation: fadeInUp 0.5s ease-out;
}

/* Cards */
.speaker-card {
    perspective: 1000px;
    height: 280px;
    margin-bottom: 20px;
}

.speaker-card-inner {
    position: relative;
    width: 100%;
    height: 100%;
    text-align: center;
    transition: transform 0.6s;
    transform-style: preserve-3d;
}

.speaker-card:hover .speaker-card-inner {
    transform: rotateY(180deg);
}

.speaker-card-front, .speaker-card-back {
    position: absolute;
    width: 100%;
    height: 100%;
    backface-visibility: hidden;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
}

.speaker-card-front {
    background: white;
}

.speaker-card-back {
    background: white;
    transform: rotateY(180deg);
    padding: 20px;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.speaker-image {
    width: 100%;
    height: 180px;
    overflow: hidden;
    background-color: #f0f0f0;
}

.speaker-photo {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.speaker-card:hover .speaker-photo {
    transform: scale(1.1);
}

.speaker-basic-info {
    padding: 15px;
}

.speaker-name {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 10px;
}

.speaker-name h3 {
    margin: 0;
    font-size: 0.95rem;
    font-weight: 600;
    color: #333;
    line-height: 1.2;
}

.flag-icon {
    width: 20px;
    height: auto;
    border-radius: 3px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.info-item {
    display: flex;
    align-items: flex-start;
    gap: 8px;
    margin-bottom: 12px;
    color: #666;
    font-size: 0.85rem;
    text-align: left;
}

.info-item i {
    color: #1a237e;
    width: 16px;
    text-align: center;
    margin-top: 3px;
}

/* Responsive */
@media (max-width: 1200px) {
    .speaker-card {
        height: 300px;
    }
}

@media (max-width: 768px) {
    .speaker-card {
        max-width: 280px;
        margin: 0 auto 20px;
    }

    .filter-buttons {
        flex-direction: column;
        align-items: center;
    }

    .filter-btn {
        width: 100%;
        max-width: 280px;
    }

    .speaker-name h3 {
        font-size: 0.9rem;
    }
}

/* Speakers Grid */
.speakers-grid {
    opacity: 1;
    transition: opacity 0.3s ease;
}

.speakers-grid .row {
    margin: -10px;
}

.speakers-grid [data-category] {
    padding: 10px;
    transition: all 0.3s ease;
}

.speakers-grid [data-category].hidden {
    display: none;
}

/* Registro Section */
.registro {
    padding: 80px 0;
    background-color: var(--light-bg);
}

.registro-form {
    max-width: 800px;
    margin: 0 auto;
    background: var(--white);
    padding: 30px;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

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

/* Footer */
.footer {
    background-color: var(--primary-color);
    color: var(--white);
    padding: 60px 0 30px;
}

.social-links a {
    color: var(--white);
    font-size: 1.5rem;
    margin-right: 15px;
    transition: color 0.3s ease;
}

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

/* Botones */
.btn-primary {
    background-color: var(--accent-color);
    border-color: var(--accent-color);
    padding: 10px 25px;
    font-weight: 500;
    transition: all 0.3s ease;
}

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

/* Responsive */
@media (max-width: 768px) {
    .hero {
        padding: 100px 0 40px;
    }

    .hero h1 {
        font-size: 2.5rem;
    }

    .hero .subtitle {
        font-size: 1.5rem;
    }

    .timeline {
        margin-left: 0;
    }

    .timeline-item {
        margin-left: 20px;
        padding-left: 1rem;
    }

    .event-details {
        margin-top: 2rem;
    }

    .conference-header {
        padding: 0.8rem 1rem;
    }

    .event-meta {
        flex-direction: column;
    }
}

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

.timeline-item, .speaker-card {
    animation: fadeIn 0.5s ease-out;
}

/* Conferencias Section */
.conferencia-card {
    perspective: 1000px;
    height: 400px;
    margin-bottom: 30px;
    width: 100%;
}

.card-inner {
    position: relative;
    width: 100%;
    height: 100%;
    text-align: center;
    transition: transform 0.8s;
    transform-style: preserve-3d;
    cursor: pointer;
}

.conferencia-card:hover .card-inner {
    transform: rotateY(180deg);
}

.card-front, .card-back {
    position: absolute;
    width: 100%;
    height: 100%;
    backface-visibility: hidden;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
}

.card-front {
    background: white;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding: 20px;
}

.card-back {
    background: white;
    transform: rotateY(180deg);
    padding: 20px;
    overflow-y: auto;
}

.flag-wrapper {
    width: 100%;
    height: 200px;
    overflow: hidden;
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.country-flag {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.conferencia-card:hover .country-flag {
    transform: scale(1.1);
}

.country-name {
    font-size: 1.8rem;
    font-weight: 600;
    color: #333;
    margin: 15px 0;
}

.conference-count {
    font-size: 1.1rem;
    color: #666;
    background: #f8f9fa;
    padding: 5px 15px;
    border-radius: 20px;
}

.scroll-content {
    height: 100%;
    overflow-y: auto;
    padding-right: 10px;
}

.conference-item {
    text-align: left;
    padding: 15px;
    border-bottom: 1px solid #eee;
    transition: background-color 0.3s ease;
}

.conference-item:hover {
    background-color: #f8f9fa;
}

.conference-date {
    font-size: 0.9rem;
    color: #1a237e;
    font-weight: 600;
    margin-bottom: 5px;
}

.conference-speaker {
    font-size: 1rem;
    font-weight: 500;
    color: #333;
    margin-bottom: 5px;
}

.conference-title {
    font-size: 0.9rem;
    color: #666;
    line-height: 1.4;
}

.card-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(to bottom, rgba(0,0,0,0) 0%, rgba(0,0,0,0.2) 100%);
    pointer-events: none;
}

/* Scrollbar styles for the conference cards */
.scroll-content::-webkit-scrollbar {
    width: 6px;
}

.scroll-content::-webkit-scrollbar-track {
    background: #f1f1f1;
    border-radius: 3px;
}

.scroll-content::-webkit-scrollbar-thumb {
    background: #1a237e;
    border-radius: 3px;
}

.scroll-content::-webkit-scrollbar-thumb:hover {
    background: #0d47a1;
}

/* Responsive adjustments */
@media (max-width: 1200px) {
    .conferencia-card {
        height: 380px;
    }
}

@media (max-width: 992px) {
    .conferencia-card {
        height: 360px;
    }
}

@media (max-width: 768px) {
    .conferencia-card {
        perspective: none;
        height: auto;
        margin-bottom: 15px;
        max-width: 100%;
    }

    .card-inner {
        transform-style: flat;
        transition: none;
        transform: none !important;
    }

    .conferencia-card:hover .card-inner {
        transform: none !important;
    }

    .card-front, .card-back {
        position: relative;
        height: auto;
        transform: none !important;
        box-shadow: 0 2px 5px rgba(0,0,0,0.1);
        backface-visibility: visible;
    }

    .card-front {
        cursor: pointer;
        padding: 15px;
        background: #fff;
        border: 1px solid #e9ecef;
        border-radius: 10px;
        position: relative;
        display: flex;
        align-items: center;
    }

    .card-back {
        display: none;
        margin-top: 10px;
        padding: 15px;
        border: 1px solid #e9ecef;
        border-radius: 10px;
        background: #fff;
    }

    .card-front::after {
        content: '\f107';
        font-family: 'Font Awesome 5 Free';
        font-weight: 900;
        position: absolute;
        right: 15px;
        top: 50%;
        transform: translateY(-50%);
        transition: transform 0.3s ease;
        font-size: 1.2rem;
        color: #666;
    }

    .conferencia-card.active .card-front::after {
        transform: translateY(-50%) rotate(180deg);
    }

    .conferencia-card.active .card-back {
        display: block;
        animation: slideDown 0.3s ease-out;
    }

    .flag-wrapper {
        height: 40px;
        width: 40px;
        margin: 0 15px 0 0;
        flex-shrink: 0;
    }

    .country-name {
        font-size: 1.2rem;
        margin: 0;
        flex-grow: 1;
        text-align: left;
    }

    .conference-count {
        margin-right: 35px;
        color: #666;
        font-size: 0.9rem;
    }

    @keyframes slideDown {
        from {
            opacity: 0;
            transform: translateY(-10px);
        }
        to {
            opacity: 1;
            transform: translateY(0);
        }
    }

    .scroll-content {
        max-height: none;
        overflow: visible;
    }

    .conference-item {
        margin-bottom: 15px;
        padding: 15px;
        background: #f8f9fa;
        border-radius: 8px;
    }
}

/* Estilos del carrusel */
.speakers-carousel-container {
    position: relative;
    overflow: hidden;
    padding: 0 50px;
    margin: 0 -50px;
}

.speakers-carousel {
    overflow: hidden;
    margin: 0 auto;
}

.carousel-items {
    display: flex;
    transition: transform 0.5s ease;
    gap: 20px;
}

.carousel-items .col-xl-3 {
    flex: 0 0 calc(25% - 15px);
    max-width: calc(25% - 15px);
    transition: all 0.3s ease;
    opacity: 1;
    transform: translateY(0);
}

.carousel-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 40px;
    height: 40px;
    border: none;
    border-radius: 50%;
    background: #1a237e;
    color: white;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10;
    transition: all 0.3s ease;
    box-shadow: 0 2px 5px rgba(0,0,0,0.2);
}

.carousel-nav:hover {
    background: #283593;
    transform: translateY(-50%) scale(1.1);
}

.carousel-nav:disabled {
    background: #ccc;
    cursor: not-allowed;
    opacity: 0.5;
}

.carousel-nav.prev {
    left: 10px;
}

.carousel-nav.next {
    right: 10px;
}

.carousel-nav i {
    font-size: 1.2rem;
}

@media (max-width: 1200px) {
    .carousel-items .col-xl-3 {
        flex: 0 0 calc(33.333% - 13.333px);
        max-width: calc(33.333% - 13.333px);
    }
}

@media (max-width: 992px) {
    .carousel-items .col-xl-3 {
        flex: 0 0 calc(50% - 10px);
        max-width: calc(50% - 10px);
    }
}

@media (max-width: 576px) {
    .carousel-items .col-xl-3 {
        flex: 0 0 100%;
        max-width: 100%;
    }

    .speakers-carousel-container {
        padding: 0 30px;
        margin: 0 -30px;
    }
}

/* Estilos para el modo de filtrado */
.speakers-carousel-container[data-filter]:not([data-filter="todos"]) {
    padding: 0;
    margin: 0;
}

.speakers-carousel-container[data-filter]:not([data-filter="todos"]) .carousel-nav {
    display: none;
}

.speakers-carousel-container[data-filter]:not([data-filter="todos"]) .carousel-items {
    transform: none !important;
    flex-wrap: wrap;
}

.speakers-carousel-container[data-filter]:not([data-filter="todos"]) .col-xl-3 {
    flex: 0 0 calc(25% - 15px);
    max-width: calc(25% - 15px);
}

@media (max-width: 1200px) {
    .speakers-carousel-container[data-filter]:not([data-filter="todos"]) .col-xl-3 {
        flex: 0 0 calc(33.333% - 13.333px);
        max-width: calc(33.333% - 13.333px);
    }
}

@media (max-width: 992px) {
    .speakers-carousel-container[data-filter]:not([data-filter="todos"]) .col-xl-3 {
        flex: 0 0 calc(50% - 10px);
        max-width: calc(50% - 10px);
    }
}

@media (max-width: 576px) {
    .speakers-carousel-container[data-filter]:not([data-filter="todos"]) .col-xl-3 {
        flex: 0 0 100%;
        max-width: 100%;
    }
}

/* Estilos para el Timeline */
.conference-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-top: 1rem;
}

.conference-track {
    background: rgba(0,45,114,0.05);
    padding: 1rem;
    border-radius: 10px;
    border: 1px solid rgba(0,45,114,0.1);
}

.conference-track h4 {
    color: #002D72;
    margin-bottom: 1rem;
    font-size: 1.1rem;
}

.room-capacity {
    display: inline-block;
    margin-top: 0.5rem;
    font-size: 0.9rem;
    color: #6c757d;
}

.event-header.receso {
    color: #FB8C00;
}

.event-header.receso i {
    color: #FB8C00;
}

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

.timeline-item {
    animation-delay: calc(var(--item-index) * 0.1s);
}

/* Responsive */
@media (max-width: 768px) {
    .timeline {
        padding-left: 60px;
    }

    .timeline::before {
        left: 20px;
    }

    .timeline-item::before {
        left: -45px;
    }

    .timeline-time {
        left: -50px;
        width: 40px;
    }

    .conference-grid {
        grid-template-columns: 1fr;
    }
}

.hero-content-left {
    background-image: url('./assets/baner_congreso.jpg');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    padding: 3rem;
    border-radius: 15px;
    position: relative;
}

.hero-content-left::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 45, 114, 0.8);
    border-radius: 15px;
    z-index: 1;
}

.hero-content-left h1,
.hero-content-left h2,
.hero-content-left p,
.hero-content-left .countdown-container,
.hero-content-left .btn {
    position: relative;
    z-index: 2;
}

/* PDF Link Styles */
.nav-link.pdf-link {
    display: flex;
    align-items: center;
    background-color: #002D72;
    color: white !important;
    border-radius: 20px;
    padding: 0.5rem 1rem !important;
    margin-left: 0.5rem;
    transition: all 0.3s ease;
}

.nav-link.pdf-link:hover {
    background-color: #004AAD;
    transform: translateY(-2px);
    box-shadow: 0 2px 5px rgba(0, 45, 114, 0.3);
}

.nav-link.pdf-link i {
    margin-right: 5px;
    font-size: 1.1rem;
}

@media (max-width: 768px) {
    .nav-link.pdf-link {
        margin: 0.5rem 0;
        justify-content: center;
    }
}

/* Simultaneous Conferences Grid */
.simultaneous-conferences {
    background: #fff;
    border-radius: 15px;
    padding: 1.5rem;
    margin: 1rem 0;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

.conference-grid {
    display: grid;
    grid-template-columns: auto repeat(4, 1fr);
    gap: 1rem;
    margin-top: 1rem;
}

.conference-grid-header {
    display: contents;
}

.grid-header-cell {
    background: #002D72;
    color: #fff;
    padding: 1rem;
    border-radius: 10px;
    font-weight: 600;
    text-align: center;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 60px;
}

.grid-time-cell {
    background: #f8f9fa;
    padding: 1rem;
    border-radius: 10px;
    font-weight: 600;
    color: #495057;
    display: flex;
    align-items: center;
    justify-content: center;
}

.conference-cell {
    background: #fff;
    border: 1px solid #e9ecef;
    border-radius: 10px;
    padding: 1rem;
    transition: all 0.3s ease;
}

.conference-cell:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}

.conference-cell .speaker-name {
    font-weight: 600;
    color: #212529;
    margin-bottom: 0.5rem;
}

.conference-cell .conference-title {
    font-size: 0.9rem;
    color: #6c757d;
    margin-bottom: 0.5rem;
}

.conference-cell .speaker-country {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.8rem;
    color: #6c757d;
}

.conference-cell .speaker-country img {
    width: 16px;
    height: auto;
    border-radius: 2px;
}

/* Area Colors */
.area-agricolas { background: linear-gradient(135deg, #4CAF50, #8BC34A); }
.area-medicas { background: linear-gradient(135deg, #2196F3, #03A9F4); }
.area-naturales { background: linear-gradient(135deg, #FF9800, #FF5722); }
.area-ingenieria { background: linear-gradient(135deg, #673AB7, #9C27B0); }

@media (max-width: 992px) {
    .conference-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .conference-grid-header {
        display: none;
    }

    .conference-cell {
        position: relative;
        padding-top: 2.5rem;
    }

    .conference-cell::before {
        content: attr(data-area);
        position: absolute;
        top: 0;
        left: 0;
        right: 0;
        padding: 0.5rem;
        background: #002D72;
        color: #fff;
        font-size: 0.8rem;
        text-align: center;
        border-radius: 10px 10px 0 0;
    }

    .grid-time-cell {
        text-align: center;
        font-weight: 700;
        background: #e9ecef;
        border-radius: 10px;
    }
}

/* Animación para la aparición/desaparición de los filtros */
@keyframes filterFadeIn {
    from {
        opacity: 0;
        transform: translateY(-10px) scale(0.95);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.filter-btn:not(.disabled):not([style*="display: none"]) {
    animation: filterFadeIn 0.3s ease forwards;
}

.speaker-link {
    color: #002D72;
    text-decoration: none;
    position: relative;
    transition: color 0.3s ease;
}

.speaker-link:hover {
    color: #004AAD;
    text-decoration: none;
}

.speaker-link strong {
    font-weight: 600;
}

.speaker-card {
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.speaker-card.highlight {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0,0,0,0.2);
    animation: highlightFade 2s ease;
}

@keyframes highlightFade {
    0% {
        background-color: rgba(0, 45, 114, 0.1);
    }
    100% {
        background-color: transparent;
    }
}

.timeline-speaker .speaker-link,
.conference-cell .speaker-link {
    color: #002D72;
    text-decoration: none;
    position: relative;
    transition: color 0.3s ease;
}

.timeline-speaker .speaker-link::after,
.conference-cell .speaker-link::after {
    content: '';
    position: absolute;
    width: 100%;
    height: 2px;
    bottom: -2px;
    left: 0;
    background-color: #002D72;
    transform: scaleX(0);
    transform-origin: right;
    transition: transform 0.3s ease;
}

.timeline-speaker .speaker-link:hover::after,
.conference-cell .speaker-link:hover::after {
    transform: scaleX(1);
    transform-origin: left;
}