/* Scroll progress bar under the header — fills as you scroll the page */
#scroll-progress {
    height: 2px;
    background: linear-gradient(90deg, #6366F1, #F5B94A);
    width: 0%;
    transition: width 0.1s linear;
}

/* Timeline node states — dim until its section is in view, then glow amber */
.timeline-node {
    transition: background-color 0.4s ease, box-shadow 0.4s ease, transform 0.4s ease;
}

    .timeline-node.is-active {
        background-color: #F5B94A;
        box-shadow: 0 0 0 6px rgba(245, 185, 74, 0.2), 0 0 20px rgba(245, 185, 74, 0.5);
        transform: scale(1.15);
    }

/* Line segment that "fills in" behind you as you scroll past each node */
.timeline-fill {
    transition: height 0.5s ease;
}

/* Scroll-reveal for content blocks */
.reveal {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

    .reveal.is-visible {
        opacity: 1;
        transform: translateY(0);
    }

@media (prefers-reduced-motion: reduce) {
    .reveal {
        opacity: 1;
        transform: none;
        transition: none;
    }

    .timeline-node, .timeline-fill {
        transition: none;
    }
}