/* ==========================================================================
   ISEG TIMELINE - ESTILOS FRONTEND PREMIUM
   ========================================================================== */

:root {
    --iseg-teal: #1AD1B9;
    --iseg-gray-light: #E5E7EB;
    --iseg-gray-dark: #707070;
    --iseg-text-dark: #1F2937;
    --iseg-text-active: #000000;
    --iseg-font-sans: inherit;
}

/* Contenedor Principal */
.iseg-timeline-wrapper {
    font-family: var(--iseg-font-sans);
    width: 100%;
    margin: 40px auto;
    position: relative;
    box-sizing: border-box;
    overflow: hidden;
}

.iseg-timeline-wrapper *, 
.iseg-timeline-wrapper *::before, 
.iseg-timeline-wrapper *::after {
    box-sizing: border-box;
}

/* Contenedor de Desplazamiento (Mobile Friendly) */
.iseg-timeline-scroller {
    width: 100%;
    overflow-x: auto;
    overflow-y: visible;
    padding: 70px 40px; /* Espacio para etiquetas superiores e inferiores */
    -webkit-overflow-scrolling: touch;
    scroll-behavior: smooth;
}

/* Ocultar barra de desplazamiento estándar */
.iseg-timeline-scroller::-webkit-scrollbar {
    display: none;
}
.iseg-timeline-scroller {
    -ms-overflow-style: none;  /* IE and Edge */
    scrollbar-width: none;  /* Firefox */
}

/* Contenedor Interno de la Línea de Tiempo */
.iseg-timeline-container {
    position: relative;
    height: 4px;
    min-width: calc(var(--total-items) * 90px); /* Ajusta dinámicamente el ancho según la cantidad de años */
    margin: 0 auto;
    background-color: transparent;
}

/* Línea de Fondo (Gris) */
.iseg-timeline-line-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: var(--iseg-gray-light);
    border-radius: 2px;
    z-index: 1;
}

/* Línea de Progreso Activa (Turquesa) */
.iseg-timeline-line-progress {
    position: absolute;
    top: 0;
    left: 0;
    width: 0%; /* Calculado dinámicamente por JS */
    height: 100%;
    background-color: var(--iseg-teal);
    border-radius: 2px;
    transition: width 0.6s cubic-bezier(0.25, 1, 0.5, 1);
    z-index: 2;
}

/* Nodos */
.iseg-timeline-nodes {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 3;
}

.iseg-timeline-node {
    position: absolute;
    top: 50%;
    transform: translate(-50%, -50%);
    transition: all 0.4s ease;
}

/* Botón del Punto (Dot) */
.iseg-timeline-dot {
    background: none;
    border: none;
    padding: 0;
    margin: 0;
    cursor: pointer;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background-color: #C2C2C2;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background-color 0.4s ease, transform 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275), box-shadow 0.4s ease;
    position: relative;
    outline: none;
}

/* Ampliar área de clic interactiva */
.iseg-timeline-dot::after {
    content: '';
    position: absolute;
    top: -15px;
    bottom: -15px;
    left: -15px;
    right: -15px;
    border-radius: 50%;
}

.iseg-timeline-dot-inner {
    width: 0px;
    height: 0px;
    border-radius: 50%;
    background-color: #FFFFFF;
    transition: width 0.4s ease, height 0.4s ease;
}

/* Nodo Completado (Años anteriores al seleccionado) */
.iseg-timeline-node.completed .iseg-timeline-dot {
    background-color: var(--iseg-teal);
}

/* Nodo Activo (Año seleccionado) */
.iseg-timeline-node.active .iseg-timeline-dot {
    background-color: var(--iseg-teal);
    transform: scale(1.5);
    box-shadow: 0 0 0 6px rgba(26, 209, 185, 0.25);
}

.iseg-timeline-node.active .iseg-timeline-dot-inner {
    width: 6px;
    height: 6px;
}

/* Efectos Hover */
.iseg-timeline-dot:hover {
    transform: scale(1.3);
    background-color: var(--iseg-teal);
}

.iseg-timeline-node.active .iseg-timeline-dot:hover {
    transform: scale(1.5); /* Mantener escala del activo */
}

/* Etiquetas de Años (Texto) */
.iseg-timeline-label {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    font-size: 16px;
    font-weight: 500;
    color: var(--iseg-gray-dark);
    white-space: nowrap;
    transition: font-size 0.4s cubic-bezier(0.25, 1, 0.5, 1), 
                color 0.4s ease, 
                font-weight 0.4s ease,
                transform 0.4s cubic-bezier(0.25, 1, 0.5, 1);
    user-select: none;
    pointer-events: none;
}

/* Etiquetas Superiores (Años Pares 0, 2, 4...) */
.iseg-timeline-label-top {
    bottom: 24px;
}

/* Etiquetas Inferiores (Años Impares 1, 3, 5...) */
.iseg-timeline-label-bottom {
    top: 24px;
}

/* Estilo del Año Seleccionado */
.iseg-timeline-node.active .iseg-timeline-label {
    font-size: 24px;
    font-weight: 800;
    color: var(--iseg-text-active);
}

/* Panel Inferior: Contenedor de Detalle */
.iseg-timeline-details-viewport {
    position: relative;
    margin-top: 20px;
    width: 100%;
    display: flex;
    justify-content: center;
    padding-top: 20px;
}

.iseg-timeline-details-container {
    display: grid;
    grid-template-columns: 1fr;
    grid-template-rows: 1fr;
    width: 100%;
    max-width: 600px;
    margin: 0 auto;
}

/* Tarjeta del Detalle de Hito */
.iseg-timeline-details-card {
    grid-column: 1;
    grid-row: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 32px;
    opacity: 0;
    transform: translateY(15px) scale(0.98);
    visibility: hidden;
    width: 100%;
    transition: opacity 0.3s ease, transform 0.3s ease, visibility 0.3s ease;
    box-sizing: border-box;
    padding: 0 20px;
    text-align: left;
}

/* Tarjeta Activa */
.iseg-timeline-details-card.active {
    opacity: 1;
    visibility: visible;
    transform: translateY(0) scale(1);
    z-index: 2;
    transition: opacity 0.5s cubic-bezier(0.25, 1, 0.5, 1) 0.15s, 
                transform 0.5s cubic-bezier(0.25, 1, 0.5, 1) 0.15s, 
                visibility 0s ease;
}

/* Icono SVG */
.iseg-timeline-details-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 64px;
    height: 64px;
    min-width: 64px;
    max-width: 64px;
    flex-shrink: 0;
}

.iseg-timeline-details-icon svg,
.iseg-timeline-details-icon img {
    width: 100%;
    height: 100%;
    display: block;
    object-fit: contain;
}

/* Frase descriptiva */
.iseg-timeline-details-phrase {
    flex-grow: 1;
}

.iseg-timeline-details-phrase p {
    margin: 0;
    font-size: 20px;
    line-height: 1.5;
    color: var(--iseg-text-dark);
    font-weight: 500;
    letter-spacing: -0.01em;
}

/* ==========================================================================
   ESTILOS ADAPTATIVOS (RESPONSIVOS)
   ========================================================================== */

@media (max-width: 768px) {
    .iseg-timeline-scroller {
        padding: 60px 20px;
    }
    
    .iseg-timeline-details-card {
        flex-direction: column;
        text-align: center;
        gap: 16px;
        max-width: 100%;
    }

    .iseg-timeline-details-phrase p {
        font-size: 17px;
    }

    .iseg-timeline-details-icon {
        width: 56px;
        height: 56px;
        min-width: 56px;
    }
}