/* ================================================================
   Developer Timeline – Frontend Styles
   ================================================================ */

/* Wrapper */
.devtl-wrapper {
    position: relative;
    overflow: hidden;
    background: transparent;
    background-size: cover;
    background-position: center center;
}

/* Overlay */
.devtl-overlay {
    position: absolute;
    inset: 0;
    z-index: 1;
    pointer-events: none;
    background: transparent;
}

/* ==================================================================
   LAYOUT — Contenido izquierda, Años derecha (3 visibles, sliding)
   ================================================================== */
.devtl-inner {
    position: relative;
    z-index: 2;
    display: flex;
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
    min-height: inherit;
    box-sizing: border-box;
}

/* — Columna izquierda: contenido — */
.devtl-right {
    flex: 1 1 0%;
    position: relative;
    min-height: 120px;
}

/* Slides */
.devtl-slide {
    position: absolute;
    top: 0; left: 0; width: 100%;
    opacity: 0;
    visibility: hidden;
    transform: translateY(14px);
    transition: opacity var(--devtl-speed, 400ms) ease,
                transform var(--devtl-speed, 400ms) ease,
                visibility 0s var(--devtl-speed, 400ms);
    pointer-events: none;
}
.devtl-slide.is-visible {
    position: relative;
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
    transition: opacity var(--devtl-speed, 400ms) ease,
                transform var(--devtl-speed, 400ms) ease,
                visibility 0s 0s;
    pointer-events: auto;
}

.devtl-title {
    margin: 0 0 16px;
    line-height: 1.2;
}
.devtl-content {
    line-height: 1.6;
}
.devtl-content p:last-child {
    margin-bottom: 0;
}

/* — Columna derecha: timeline — */
.devtl-left {
    flex: 0 0 auto;
    display: flex;
    align-items: center;
    position: relative;
    order: 2; /* Enviar a la derecha en desktop */
}

.devtl-right {
    order: 1; /* Contenido a la izquierda en desktop */
}

/* Timeline container */
.devtl-timeline {
    position: relative;
    display: flex;
    flex-direction: row;
    align-items: center;
}

/* ---- Viewport deslizable, solo 3 años visibles ---- */
.devtl-years-viewport {
    position: relative;
    overflow: hidden;
    height: calc(var(--devtl-row-h, 90px) * 3);
    width: auto;
}

.devtl-years-track {
    display: flex;
    flex-direction: column;
    transition: transform var(--devtl-speed, 400ms) cubic-bezier(.4,0,.2,1);
    will-change: transform;
}

/* Spacers visibles (una fila vacía arriba y abajo para centrar primero/último) */
.devtl-spacer {
    display: flex;
    height: var(--devtl-row-h, 90px);
    flex-shrink: 0;
}

/* Fila de cada año */
.devtl-year-row {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    cursor: pointer;
    user-select: none;
    -webkit-user-select: none;
    position: relative;
    padding-right: 20px;
    transition: opacity 0.3s ease;
    height: var(--devtl-row-h, 90px);
    margin-bottom: 0;
    flex-shrink: 0;
}
.devtl-year-row:hover .devtl-year {
    opacity: 1;
}

/* Texto del año */
.devtl-year {
    white-space: nowrap;
    font-size: 1.8rem;
    font-weight: 600;
    opacity: 0.45;
    transition: all 0.35s ease;
    color: inherit;
}
.devtl-year-row.is-active .devtl-year {
    font-size: 2.6rem;
    font-weight: 900;
    opacity: 1;
}

/* ---- Línea + puntos — contenedor (altura = 3 filas) ---- */
.devtl-line-col {
    position: relative;
    width: 20px;
    flex-shrink: 0;
    height: calc(var(--devtl-row-h, 90px) * 3);
    align-self: auto;
}

/* Línea vertical CON DEGRADADO */
.devtl-line {
    position: absolute;
    top: 0;
    bottom: 0;
    left: 50%;
    width: 2px;
    transform: translateX(-50%);
    pointer-events: none;
    z-index: 0;
    background: linear-gradient(
        to bottom,
        transparent 0%,
        var(--devtl-line-color, #fff) 15%,
        var(--devtl-line-color, #fff) 85%,
        transparent 100%
    );
}

/* Dots viewport: absolute sobre la línea, overflow hidden + sliding */
.devtl-dots-viewport {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
    z-index: 2;
    pointer-events: none;
}
.devtl-dots-track {
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    transition: transform var(--devtl-speed, 400ms) cubic-bezier(.4,0,.2,1);
    will-change: transform;
}

/* Punto row */
.devtl-dot-row {
    display: flex;
    align-items: center;
    justify-content: center;
    height: var(--devtl-row-h, 90px);
    flex: none;
    pointer-events: auto;
}
.devtl-dot {
    display: block;
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--devtl-dot-color, #888);
    border: 2px solid var(--devtl-dot-color, #888);
    box-sizing: border-box;
    flex-shrink: 0;
    transition: all 0.35s ease;
    z-index: 2;
}
.devtl-dot-row.is-active .devtl-dot {
    width: 14px;
    height: 14px;
    background: var(--devtl-dot-active, #e84c6a);
    border-color: var(--devtl-dot-active, #e84c6a);
}

/* ==================================================================
   MOBILE — Viewport deslizable, solo 3 años visibles
   ================================================================== */
@media (max-width: 767px) {
    /* En mobile: timeline a la izquierda, contenido a la derecha */
    .devtl-left {
        order: 1;
        justify-content: center;
    }
    .devtl-right {
        order: 2;
        max-width: 100%;
        padding: 0 16px;
    }

    .devtl-year-row {
        padding-right: 16px;
    }
}