.timeline-progress {
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    transition: width 0.5s ease;
}
.timeline-point {
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background-color: var(--border-color);
    border: 3px solid var(--bg-color);
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}
.timeline-point.active {
    background-color: var(--primary-color);
    transform: scale(1.2);
}
.timeline-slide {
    opacity: 0;
    transition: opacity 0.5s ease;
    position: absolute;
    width: 100%;
    color: var(--text-color);
}
.timeline-slide.active {
    opacity: 1;
    position: relative;
}
.timeline-image {
    height: 0;
    padding-bottom: 56.25%;
    background-size: cover;
    background-position: center;
    border-radius: 12px;
    box-shadow: 0 10px 15px -3px rgba(0,0,0,0.1);
    transition: all 0.3s ease;
}
.timeline-image:hover {
    transform: translateY(-4px);
    box-shadow: 0 20px 25px -5px rgba(0,0,0,0.1);
}
.timeline-detail {
    background-color: var(--bg-dark);
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.875rem;
    margin-right: 8px;
    color: var(--text-light);
    border: 1px solid var(--border-color);
}
.timeline-nav-btn {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background-color: var(--bg-color);
    border: 1px solid var(--border-color);
    box-shadow: 0 4px 6px -1px rgba(0,0,0,0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.3s ease;
    color: var(--text-color);
}
.timeline-nav-btn:hover {
    background-color: var(--primary-color);
    color: var(--bg-color);
    transform: scale(1.1);
}
.timeline-year-marker {
    position: absolute;
    top: -30px;
    left: 50%;
    transform: translateX(-50%);
    background-color: var(--primary-color);
    color: var(--bg-color);
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.875rem;
    font-weight: 600;
    white-space: nowrap;
}

/* Centrado fiable de título y subtítulo en la línea de tiempo */
section[aria-label="Línea de tiempo de obras"] h2,
section[aria-label="Línea de tiempo de obras"] h4 {
    text-align: center !important;
    margin-left: auto;
    margin-right: auto;
}

/* Evitar que el contenido quede cortado en móviles */
@media (max-width: 768px) {
    section[aria-label="Línea de tiempo de obras"] .h-\[500px\] {
        height: auto !important;
        min-height: 0;
    }
}

/* Adaptaciones específicas para modo oscuro */
[data-theme="dark"] .timeline-point {
    box-shadow: 0 2px 4px rgba(0,0,0,0.3);
}

[data-theme="dark"] .timeline-image {
    box-shadow: 0 10px 15px -3px rgba(0,0,0,0.3);
}

[data-theme="dark"] .timeline-image:hover {
    box-shadow: 0 20px 25px -5px rgba(0,0,0,0.3);
}

[data-theme="dark"] .timeline-nav-btn {
    box-shadow: 0 4px 6px -1px rgba(0,0,0,0.3);
}