/* ================================
   SISTEMA DE IMÁGENES EN EVENTOS
   ================================ */

/* Evento sin imagen - solo fondo de color */
.event-header:not(.with-image) {
    background: #f8f9fa;
    border-bottom: 4px solid #007bff;
}

/* Colores temáticos para eventos sin imagen */
.event-header.theme-finance {
    background: linear-gradient(135deg, #ffd89b 0%, #ffecd2 100%);
    color: #2c3e50;
}

.event-header.theme-personal {
    background: linear-gradient(135deg, #a8edea 0%, #fed6e3 100%);
    color: #2c3e50;
}

.event-header.theme-productivity {
    background: linear-gradient(135deg, #d299c2 0%, #fef9d3 100%);
    color: #2c3e50;
}

.event-header.theme-wellness {
    background: linear-gradient(135deg, #89f7fe 0%, #66a6ff 100%);
    color: #2c3e50;
}

/* Imagen placeholder para eventos */
.event-image-placeholder {
    width: 80px;
    height: 80px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    margin: 0 auto 1rem;
}

.event-header.with-image .event-image-placeholder {
    display: none;
}

/* ================================
   SISTEMA DE IMÁGENES EN EVENTOS
   ================================ */

/* Evento sin imagen - solo fondo de color */
.event-header:not(.with-image) {
    background: #f8f9fa;
    border-bottom: 4px solid #007bff;
}

/* Colores temáticos para eventos sin imagen */
.event-header.theme-finance {
    background: linear-gradient(135deg, #ffd89b 0%, #ffecd2 100%);
    color: #2c3e50;
}

.event-header.theme-personal {
    background: linear-gradient(135deg, #a8edea 0%, #fed6e3 100%);
    color: #2c3e50;
}

.event-header.theme-productivity {
    background: linear-gradient(135deg, #d299c2 0%, #fef9d3 100%);
    color: #2c3e50;
}

.event-header.theme-wellness {
    background: linear-gradient(135deg, #89f7fe 0%, #66a6ff 100%);
    color: #2c3e50;
}

/* Imagen placeholder para eventos */
.event-image-placeholder {
    width: 80px;
    height: 80px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    margin: 0 auto 1rem;
}

.event-header.with-image .event-image-placeholder {
    display: none;
}

/* Mejoras en el responsive para imágenes */
@media (max-width: 768px) {
    .event-header {
        min-height: 150px;
        padding: 1.5rem;
    }

    .event-header.with-image {
        min-height: 180px;
    }

    .event-title {
        font-size: 1.4rem;
    }

    .event-image-placeholder {
        width: 60px;
        height: 60px;
        font-size: 1.5rem;
    }
}

/* Animación para el overlay de imágenes */
.event-header.with-image::before {
    transition: background-color 0.3s ease;
}

.event-card:hover .event-header.with-image::before {
    background: rgba(0, 0, 0, 0.3);
}

/* Estilos para iconos temáticos */
.topic-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
    opacity: 0.8;
}

/* Estados de carga para imágenes */
.event-header.loading {
    background: #f8f9fa;
    position: relative;
}

.event-header.loading::after {
    content: "";
    position: absolute;
    top: 50%;
    left: 50%;
    width: 40px;
    height: 40px;
    margin: -20px 0 0 -20px;
    border: 3px solid #007bff;
    border-top: 3px solid transparent;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% {
        transform: rotate(0deg);
    }
    100% {
        transform: rotate(360deg);
    }
} /* ================================
   RESET Y CONFIGURACIÓN BASE
   ================================ */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    height: 100%;
    margin: 0;
    display: flex;
    flex-direction: column;
    font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: #333;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    min-height: 100vh;
}

.container {
    flex: 1;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* ================================
   HEADER
   ================================ */
header {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    padding: 1rem 0;
    margin-bottom: 2rem;
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.1);
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
}

.logo h1 {
    color: #2c3e50;
    font-size: 2.5rem;
    font-weight: 700;
    text-shadow: none;
}

.logo p {
    color: #6c757d;
    font-size: 1.1rem;
    margin-top: 0.5rem;
}

/* ================================
   NAVEGACIÓN
   ================================ */
nav ul {
    list-style: none;
    display: flex;
    gap: 2rem;
}

nav a {
    color: #495057;
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
    padding: 0.5rem 1rem;
    border-radius: 25px;
}

nav a:hover,
nav a.active {
    background: #007bff;
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0, 123, 255, 0.3);
}

/* ================================
   CONTENIDO PRINCIPAL
   ================================ */
main {
    padding: 2rem 0;
}

.section {
    display: none;
    animation: fadeIn 0.5s ease-in;
}

.section.active {
    display: block;
}

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

/* ================================
   GRILLA DE EVENTOS
   ================================ */
.events-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

/* Grilla específica para eventos anteriores */
#past .events-grid {
    grid-template-columns: repeat(2, 1fr);
    max-width: 1200px;
    margin: 0 auto 3rem;
}

/* Responsive para eventos anteriores */
@media (max-width: 768px) {
    #past .events-grid {
        grid-template-columns: 1fr;
    }
}

/* ================================
   TARJETAS DE EVENTOS
   ================================ */
.event-card {
    background: white;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    position: relative;
}

.event-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.15);
}

.event-card.featured {
    transform: scale(1.05);
    border: 3px solid #ffd700;
}

.event-card.featured::before {
    content: "PRÓXIMO EVENTO";
    position: absolute;
    top: 15px;
    right: 15px;
    background: #ffd700;
    color: #333;
    padding: 5px 15px;
    border-radius: 15px;
    font-size: 0.8rem;
    font-weight: bold;
    z-index: 2;
}

/* ================================
   HEADER DE EVENTOS
   ================================ */
.event-header {
    background: #f8f9fa;
    padding: 2rem;
    text-align: center;
    color: #2c3e50;
    position: relative;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 200px;
}

.event-header.with-image {
    background-size: cover;
    background-position: center;
    color: white;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.7);
}

.event-header.with-image::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.4);
    z-index: 1;
}

.event-header-content {
    position: relative;
    z-index: 2;
}

.event-header::after {
    content: "";
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grain" width="100" height="100" patternUnits="userSpaceOnUse"><circle cx="25" cy="25" r="1" fill="white" opacity="0.05"/><circle cx="75" cy="75" r="1" fill="white" opacity="0.05"/><circle cx="50" cy="10" r="0.5" fill="white" opacity="0.05"/></pattern></defs><rect width="100" height="100" fill="url(%23grain)"/></svg>');
    animation: float 20s ease-in-out infinite;
}

@keyframes float {
    0%,
    100% {
        transform: translateX(0) translateY(0) rotate(0deg);
    }
    50% {
        transform: translateX(10px) translateY(-10px) rotate(180deg);
    }
}

.event-title {
    font-size: 1.8rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    position: relative;
    z-index: 1;
}

.event-subtitle {
    font-size: 1.1rem;
    opacity: 0.9;
    position: relative;
    z-index: 1;
}

/* ================================
   CUERPO DE EVENTOS
   ================================ */
.event-body {
    padding: 2rem;
}

.event-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
    flex-wrap: wrap;
    gap: 1rem;
}

.date-time {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    background: #f8f9fa;
    padding: 0.5rem 1rem;
    border-radius: 15px;
}

.location {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: #666;
}

.event-description {
    color: #555;
    margin-bottom: 1.5rem;
    line-height: 1.8;
}

/* ================================
   INFORMACIÓN DEL PONENTE
   ================================ */
.speaker {
    display: flex;
    align-items: center;
    gap: 1rem;
    background: #f8f9fa;
    padding: 1rem;
    border-radius: 15px;
    margin-bottom: 1rem;
}

.speaker-avatar {
    width: 50px;
    height: 50px;
    background: #007bff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: bold;
    font-size: 1.2rem;
}

/* ================================
   BOTONES
   ================================ */
.btn {
    background: #007bff;
    color: white;
    padding: 12px 30px;
    border: none;
    border-radius: 25px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    display: inline-block;
    text-align: center;
}

.btn:hover {
    background: #0056b3;
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(0, 123, 255, 0.3);
}

.btn.secondary {
    background: transparent;
    border: 2px solid #6c757d;
    color: #6c757d;
}

.btn.secondary:hover {
    background: #6c757d;
    color: white;
}

/* ================================
   EVENTOS ANTERIORES
   ================================ */
.past-events {
    margin-top: 3rem;
}

.past-events h2 {
    text-align: center;
    margin-bottom: 2rem;
    font-size: 2rem;
}

.past-event-item {
    background: white;
    border-radius: 15px;
    padding: 1.5rem;
    margin-bottom: 1rem;
    color: #495057;
    transition: all 0.3s ease;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
}

.past-event-item:hover {
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
    transform: translateY(-5px);
}

.past-event-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.5rem;
}

.past-event-title {
    font-size: 1.3rem;
    font-weight: 600;
}

.past-event-date {
    font-size: 0.9rem;
    opacity: 0.8;
}
/* El footer se queda pegado al final */
footer {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.1);
    text-align: center;
    padding: 10px 0;
}
/* ================================
   ICONOS
   ================================ */
.icon {
    width: 20px;
    height: 20px;
    fill: currentColor;
}

/* ================================
   RESPONSIVE DESIGN
   ================================ */
@media (max-width: 768px) {
    .header-content {
        flex-direction: column;
        text-align: center;
        gap: 1rem;
    }

    .logo h1 {
        font-size: 2rem;
    }

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

    .event-meta {
        flex-direction: column;
        align-items: flex-start;
    }

    nav ul {
        flex-wrap: wrap;
        justify-content: center;
    }
}

/* ================================
   ANIMACIONES ADICIONALES
   ================================ */
.event-card {
    opacity: 0;
    transform: translateY(20px);
    transition:
        opacity 0.6s ease,
        transform 0.6s ease;
}

.past-event-item {
    opacity: 0;
    transform: translateY(20px);
    transition:
        opacity 0.6s ease,
        transform 0.6s ease;
}

/* Estados para animaciones dinámicas */
.animate-in {
    opacity: 1 !important;
    transform: translateY(0) !important;
}