::selection {
    background-color: #500000; /* dark mode background */
    color: #DBC6A5;
}

::-moz-selection {
    background-color: #500000;
    color: #DBC6A5;
}

.dark ::selection {
    background-color: #DBC6A5; /* light mode background */
    color: #500000;
}

.dark ::-moz-selection {
    background-color: #DBC6A5;
    color: #500000;
}

.app {
	height: 100vh;
  width: 100vw;

  cursor: url(cursors/neo-nyan-cursor.png), auto;
}

.app button {
  cursor: url(cursors/neo-nyan-pointer.png), auto;
}

#pcb-background {
    position: fixed;
    inset: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 0;
    opacity: 0.38;
}
nav,
header,
section {
    position: relative;
    z-index: 1;
}

#lidar-background {
    position: absolute;
    top: 0;
    right: 0;
    width: 50%;
    height: 600px;
    pointer-events: none;
    z-index: 2;
}

header {
    position: relative;
    overflow: hidden;
}

.experience-timeline {
    --timeline-color: #6BAB4F;
    position: relative;
    max-width: 100%;
    margin: 2.75rem 0;
    padding: 1.5rem 1.35rem 1.6rem;
    border: 1px solid rgba(255, 255, 255, 0.5);
    border-radius: 1rem;
    background: rgba(255, 255, 255, 0.22);
    backdrop-filter: blur(12px) saturate(150%);
    box-shadow: 0 12px 32px rgba(12, 52, 61, 0.08);
}

.timeline-years {
    display: flex;
    justify-content: space-between;
    color: #0C343D;
    font-size: 0.75rem;
    font-weight: 800;
    letter-spacing: 0.14em;
}

.timeline-track {
    position: relative;
    display: grid;
    grid-template-columns: repeat(6, minmax(0, 1fr));
    gap: 0.5rem;
    margin-top: 0.75rem;
}

.timeline-track::before,
.timeline-track::after {
    content: "";
    position: absolute;
    top: 1.35rem;
    left: 0;
    height: 2px;
    border-radius: 999px;
}

.timeline-track::before {
    right: 0;
    background: rgba(12, 52, 61, 0.18);
}

.timeline-track::after {
    width: 0;
    background: var(--timeline-color);
    box-shadow: 0 0 14px rgba(107, 171, 79, 0.75);
    transition: width 1.35s cubic-bezier(.22, 1, .36, 1);
}

.experience-timeline.is-visible .timeline-track::after {
    width: 100%;
}

.timeline-event {
    position: relative;
    z-index: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    min-width: 0;
    color: #0C343D;
    text-align: center;
    cursor: default;
    opacity: 0;
    transform: translateY(18px);
    transition: opacity .45s ease, transform .45s ease;
}

.experience-timeline.is-visible .timeline-event {
    opacity: 1;
    transform: translateY(0);
}

.experience-timeline.is-visible .timeline-event:nth-child(1) { transition-delay: .1s; }
.experience-timeline.is-visible .timeline-event:nth-child(2) { transition-delay: .2s; }
.experience-timeline.is-visible .timeline-event:nth-child(3) { transition-delay: .3s; }
.experience-timeline.is-visible .timeline-event:nth-child(4) { transition-delay: .4s; }
.experience-timeline.is-visible .timeline-event:nth-child(5) { transition-delay: .5s; }
.experience-timeline.is-visible .timeline-event:nth-child(6) { transition-delay: .6s; }

.timeline-node {
    display: grid;
    width: 2.7rem;
    height: 2.7rem;
    place-items: center;
    margin-bottom: 0.75rem;
    border: 1px solid rgba(12, 52, 61, 0.18);
    border-radius: 999px;
    background: rgba(219, 198, 165, 0.74);
    box-shadow: 0 0 0 5px rgba(219, 198, 165, 0.92);
    font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
    font-size: 0.72rem;
    font-weight: 800;
    letter-spacing: 0.08em;
    transition: transform .25s ease, box-shadow .25s ease, background .25s ease, color .25s ease;
}

.timeline-event:hover .timeline-node,
.timeline-event:focus .timeline-node {
    color: #fff;
    background: #0C343D;
    box-shadow: 0 0 0 5px rgba(219, 198, 165, 0.8), 0 0 22px rgba(107, 171, 79, .9);
    transform: translateY(-5px) scale(1.08);
}

.timeline-event:focus {
    outline: none;
}

.timeline-event:focus-visible .timeline-node {
    outline: 3px solid #0C343D;
    outline-offset: 3px;
}

.timeline-label {
    font-size: 0.78rem;
    font-weight: 800;
    line-height: 1.2;
}

.timeline-detail {
    max-width: 8rem;
    margin-top: 0.3rem;
    color: rgba(12, 52, 61, 0.72);
    font-size: 0.64rem;
    font-weight: 600;
    line-height: 1.25;
}

.dark .experience-timeline {
    --timeline-color: #67B2D8;
    border-color: rgba(219, 198, 165, 0.18);
    background: rgba(12, 52, 61, 0.23);
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.16);
}
.dark .timeline-years,
.dark .timeline-event { color: #DBC6A5; }
.dark .timeline-track::before { background: rgba(219, 198, 165, 0.3); }
.dark .timeline-track::after { box-shadow: 0 0 14px rgba(103, 178, 216, 0.75); }
.dark .timeline-node {
    border-color: rgba(219, 198, 165, 0.45);
    background: rgba(80, 0, 0, 0.58);
    box-shadow: 0 0 0 5px rgba(80, 0, 0, 0.58);
}
.dark .timeline-event:hover .timeline-node,
.dark .timeline-event:focus .timeline-node {
    color: #0C343D;
    background: #DBC6A5;
    box-shadow: 0 0 0 5px rgba(80, 0, 0, 0.58), 0 0 22px rgba(103, 178, 216, .9);
}
.dark .timeline-event:focus-visible .timeline-node { outline-color: #DBC6A5; }
.dark .timeline-detail { color: rgba(219, 198, 165, 0.78); }

.experience-card {
    opacity: 0;
    transform: translateY(24px);
}

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

@media (max-width: 768px){

    #lidar-background{
        display:none;
    }

    .experience-timeline {
        margin: 2.25rem 0;
        padding: 1.25rem;
    }

    .timeline-track {
        display: grid;
        grid-template-columns: 1fr;
        gap: 0;
        margin-top: 1rem;
    }

    .timeline-track::before,
    .timeline-track::after {
        top: 0;
        bottom: 0;
        left: 1.3rem;
        width: 2px;
        height: auto;
    }

    .timeline-track::after {
        width: 2px;
        height: 0;
        transition: height 1.35s cubic-bezier(.22, 1, .36, 1);
    }

    .experience-timeline.is-visible .timeline-track::after { height: 100%; }

    .timeline-event {
        display: grid;
        grid-template-columns: 2.7rem 1fr;
        column-gap: 1rem;
        min-height: 4.6rem;
        text-align: left;
    }

    .timeline-node {
        grid-row: span 2;
        margin: 0;
    }

    .timeline-label { align-self: end; font-size: 0.9rem; }
    .timeline-detail { align-self: start; max-width: none; margin-top: .2rem; font-size: .72rem; }

}