/* ============================================
   TIMELINE - SECCIÓN HISTORIA
   ============================================ */

.timeline {
    position: relative;
    max-width: 900px;
    margin: var(--space-16) auto;
    padding: var(--space-8) 0;
}

/* Línea vertical del timeline */
.timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 3px;
    background: linear-gradient(to bottom,
            var(--color-primary) 0%,
            var(--color-primary-light) 50%,
            var(--color-primary) 100%);
    transform: translateX(-50%);
}

.timeline-item {
    position: relative;
    width: 100%;
    padding: var(--space-6) 0;
    display: flex;
    align-items: center;
}

/* Alternar lados en desktop */
.timeline-item:nth-child(odd) {
    justify-content: flex-start;
}

.timeline-item:nth-child(even) {
    justify-content: flex-end;
}

.timeline-item:nth-child(odd) .timeline-content {
    margin-right: calc(50% + var(--space-8));
    text-align: right;
}

.timeline-item:nth-child(even) .timeline-content {
    margin-left: calc(50% + var(--space-8));
    text-align: left;
}

/* Marker (círculo en la línea) */
.timeline-marker {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    width: 20px;
    height: 20px;
    background-color: var(--color-primary);
    border: 4px solid var(--color-white);
    border-radius: var(--radius-full);
    box-shadow: var(--shadow-lg);
    z-index: 2;
    transition: all var(--transition-base);
}

.timeline-item:hover .timeline-marker {
    width: 28px;
    height: 28px;
    background-color: var(--color-primary-dark);
}

/* Marker especial para item destacado */
.timeline-highlight .timeline-marker {
    width: 28px;
    height: 28px;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    box-shadow: 0 0 0 6px rgba(249, 115, 22, 0.2), var(--shadow-xl);
    animation: pulse-marker 2s ease-in-out infinite;
}

@keyframes pulse-marker {

    0%,
    100% {
        box-shadow: 0 0 0 6px rgba(249, 115, 22, 0.2), var(--shadow-xl);
    }

    50% {
        box-shadow: 0 0 0 12px rgba(249, 115, 22, 0), var(--shadow-xl);
    }
}

/* Contenido del timeline */
.timeline-content {
    background: var(--color-white);
    padding: var(--space-8);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    max-width: 45%;
    transition: all var(--transition-base);
    border-left: 4px solid var(--color-primary);
}

.timeline-content:hover {
    transform: scale(1.02);
    box-shadow: var(--shadow-xl);
}

.timeline-highlight .timeline-content {
    background: linear-gradient(135deg, rgba(249, 115, 22, 0.05) 0%, var(--color-white) 100%);
    border-left: 6px solid var(--color-primary);
}

.timeline-year {
    display: inline-block;
    padding: var(--space-2) var(--space-4);
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    color: var(--color-white);
    font-family: var(--font-heading);
    font-size: var(--text-sm);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border-radius: var(--radius-full);
    margin-bottom: var(--space-3);
}

.timeline-content h4 {
    color: var(--color-dark);
    margin-bottom: var(--space-3);
    font-size: var(--text-xl);
}

.timeline-content p {
    color: var(--color-gray);
    line-height: 1.7;
    font-size: var(--text-base);
}

/* ============================================
   ANTES Y DESPUÉS - COMPARACIÓN
   ============================================ */

.comparacion-grid {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    gap: var(--space-8);
    align-items: center;
    max-width: 1000px;
    margin: 0 auto;
}

.comparacion-card {
    background: var(--color-white);
    padding: var(--space-8);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    position: relative;
    transition: all var(--transition-base);
}

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

.comparacion-badge {
    position: absolute;
    top: var(--space-4);
    right: var(--space-4);
    padding: var(--space-2) var(--space-4);
    background-color: var(--color-gray);
    color: var(--color-white);
    font-size: var(--text-xs);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border-radius: var(--radius-full);
}

.comparacion-badge-new {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
}

.comparacion-highlight {
    border: 2px solid var(--color-primary);
}

.comparacion-card h4 {
    margin-bottom: var(--space-6);
    color: var(--color-dark);
}

.comparacion-card ul li {
    padding: var(--space-2) 0;
    color: var(--color-gray);
    font-size: var(--text-base);
}

.comparacion-arrow {
    font-size: var(--text-6xl);
    color: var(--color-primary);
    font-weight: 700;
    text-align: center;
}

/* Responsive - Timeline */
@media (max-width: 768px) {
    .timeline::before {
        left: 20px;
    }

    .timeline-item {
        justify-content: flex-start !important;
    }

    .timeline-item .timeline-content {
        margin-left: 50px !important;
        margin-right: 0 !important;
        text-align: left !important;
        max-width: calc(100% - 60px);
    }

    .timeline-marker {
        left: 20px;
    }

    .timeline-content {
        padding: var(--space-6);
    }

    .comparacion-grid {
        grid-template-columns: 1fr;
        gap: var(--space-6);
    }

    .comparacion-arrow {
        display: none;
    }

    .comparacion-card {
        padding: var(--space-6);
    }
}