/* Project timeline (homepage). Data: data/projects.yaml. Partial: layouts/partials/project_timeline.html.
   Script: static/js/project-timeline.js. Rule: first project of each year sits on the LEFT; a second
   project sharing the same year goes RIGHT. */

.ptl-section {
    text-align: center;
    margin-top: 50px;
    padding: 0 32px;
    max-width: 1100px;
    margin-left: auto;
    margin-right: auto;
}

.ptl-section .highlighted-text {
    margin-bottom: 30px;
    display: inline-block;
}

/* Inner side padding so pills at the 0% / 100% ends don't clip. */
.ptl {
    position: relative;
    padding: 0 160px;
    text-align: left;
}

/* ---------- Plot ---------- */
.ptl-plot {
    position: relative;
    height: 200px;
}

.ptl-node {
    position: absolute;
    transform: translate(-50%, -50%);
    width: 0;
    height: 0;
    /* JS sets left/top; hide until positioned to avoid flash. */
    visibility: hidden;
}

.ptl.is-positioned .ptl-node {
    visibility: visible;
}

.ptl-dot {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 14px;
    height: 14px;
    border-radius: 50%;
    background: #0dc469;
    border: 2px solid #fff;
    box-shadow: 0 0 0 1px #0dc469;
    cursor: pointer;
    z-index: 2;
    transition: transform 0.18s ease, box-shadow 0.18s ease;
}

.ptl-node:hover .ptl-dot {
    transform: translate(-50%, -50%) scale(1.15);
}

.ptl-node.is-active .ptl-dot {
    box-shadow: 0 0 0 4px rgba(13, 196, 105, 0.28), 0 0 0 1px #0dc469;
}

.ptl-stem {
    position: absolute;
    top: 50%;
    height: 1px;
    background: #c9c9c9;
    z-index: 1;
}

/* Vertical dashed line from the dot down to the axis, color-matched to the dot.
   Height is set in JS based on the dot's vertical position within the 200px plot. */
.ptl-projection {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    border-left: 2px dashed #0dc469;
    transform: translateX(-50%);
    opacity: 0.85;
    z-index: 0;
    pointer-events: none;
}

.ptl-node.is-wip .ptl-projection {
    border-left-color: #ff7a18;
}

.ptl-node.side-left .ptl-stem {
    right: 7px;
    width: 18px;
}

.ptl-node.side-right .ptl-stem {
    left: 7px;
    width: 18px;
}

.ptl-pill {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: #fff;
    border: 1px solid #e8e8e8;
    border-radius: 999px;
    padding: 4px 12px 4px 4px;
    cursor: pointer;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
    white-space: nowrap;
    font-family: 'Poppins', sans-serif;
    transition: box-shadow 0.18s ease, transform 0.18s ease, border-color 0.18s ease;
}

.ptl-pill:hover {
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.10);
}

.ptl-pill:focus-visible {
    outline: none;
    border-color: #0dc469;
    box-shadow: 0 0 0 2px rgba(13, 196, 105, 0.25);
}

.ptl-node.is-active .ptl-pill {
    border-color: #0dc469;
    box-shadow: 0 0 0 2px rgba(13, 196, 105, 0.18);
}

.ptl-pill img {
    width: 22px;
    height: 22px;
    object-fit: cover;
    border-radius: 50%;
    background: #ddd;
    flex-shrink: 0;
}

.ptl-pill-name {
    font-size: 12px;
    font-weight: 600;
    color: #1c1c1c;
    line-height: 1.1;
}

.ptl-node.side-left .ptl-pill {
    right: 25px;
}

.ptl-node.side-right .ptl-pill {
    left: 25px;
}

/* ---------- WIP (in-development) variant — orange theme ---------- */
.ptl-node.is-wip .ptl-dot {
    background: #ff7a18;
    box-shadow: 0 0 0 1px #ff7a18;
}

.ptl-node.is-wip.is-active .ptl-dot {
    box-shadow: 0 0 0 4px rgba(255, 122, 24, 0.28), 0 0 0 1px #ff7a18;
}

.ptl-pill-wip {
    background: #fff7ef;
    border-color: #ffd2a8;
}

.ptl-pill-wip:hover {
    box-shadow: 0 4px 10px rgba(255, 122, 24, 0.16);
}

.ptl-pill-wip:focus-visible {
    outline: none;
    border-color: #ff7a18;
    box-shadow: 0 0 0 2px rgba(255, 122, 24, 0.25);
}

.ptl-node.is-wip.is-active .ptl-pill-wip {
    border-color: #ff7a18;
    box-shadow: 0 0 0 2px rgba(255, 122, 24, 0.18);
}

.ptl-pill-wip .ptl-pill-name {
    color: #7a3b00;
}

.ptl-pill-lock {
    width: 22px;
    height: 22px;
    border-radius: 50%;
    background: linear-gradient(135deg, #ffb066, #ff7a18);
    color: #fff;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.ptl-pill-tag {
    margin-left: 2px;
    font-size: 9px;
    font-weight: 700;
    letter-spacing: 0.08em;
    background: #ff7a18;
    color: #fff;
    padding: 2px 6px;
    border-radius: 999px;
    text-transform: uppercase;
    line-height: 1;
}

/* ---------- Axis ---------- */
.ptl-axis {
    position: relative;
    height: 1px;
    background: #d6d6d6;
    margin-bottom: 24px;
}

.ptl-tick {
    position: absolute;
    top: -5px;
    width: 1px;
    height: 11px;
    background: #c2c2c2;
}

.ptl-tick-label {
    position: absolute;
    top: 14px;
    left: 0;
    transform: translateX(-50%);
    font-size: 11px;
    color: #999;
    font-weight: 500;
    white-space: nowrap;
}

/* ---------- Anchored detail card ---------- */
.ptl-panel-wrap {
    position: relative;
    min-height: 12px;
}

.ptl-panel {
    position: absolute;
    top: 0;
    transform: translateX(-50%);
    width: 300px;
    background: #fff;
    border: 1px solid #e0e0e0;
    border-radius: 10px;
    padding: 12px;
    box-shadow: 0 6px 18px rgba(0, 0, 0, 0.08);
    text-align: left;
    z-index: 5;
}

.ptl-panel[hidden] {
    display: none;
}

.ptl-panel::before {
    content: "";
    position: absolute;
    left: 50%;
    top: -7px;
    transform: translateX(-50%) rotate(45deg);
    width: 12px;
    height: 12px;
    background: #fff;
    border-left: 1px solid #e0e0e0;
    border-top: 1px solid #e0e0e0;
}

.ptl-panel-hero-wrap {
    position: relative;
    width: 100%;
    height: 110px;
    border-radius: 6px;
    overflow: hidden;
    background: #ddd;
}

.ptl-panel-hero {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.ptl-panel-hero-gate {
    position: absolute;
    inset: 0;
    background: repeating-linear-gradient(135deg,
        #ffd2a8 0 14px,
        #ffe6cf 14px 28px);
    display: flex;
    align-items: center;
    justify-content: center;
}

.ptl-panel-hero-gate svg {
    width: 28px;
    height: 28px;
    color: #ff7a18;
    background: rgba(255, 255, 255, 0.9);
    border-radius: 50%;
    padding: 8px;
    box-sizing: content-box;
}

.ptl-panel-head {
    display: flex;
    align-items: center;
    gap: 10px;
    margin: 10px 0 6px;
}

.ptl-panel-icon {
    width: 36px;
    height: 36px;
    object-fit: cover;
    border-radius: 6px;
    background: #ddd;
    flex-shrink: 0;
}

.ptl-panel-icon-gate {
    width: 36px;
    height: 36px;
    border-radius: 6px;
    background: linear-gradient(135deg, #ffb066, #ff7a18);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.ptl-panel.is-wip-panel .ptl-panel-meta {
    color: #ff7a18;
    font-weight: 600;
}

.ptl-panel-head-text {
    min-width: 0;
}

.ptl-panel-name {
    font-size: 14px;
    font-weight: 600;
    margin: 0;
    font-family: 'Poppins', sans-serif;
    color: #1c1c1c;
}

.ptl-panel-meta {
    font-size: 10px;
    color: #888;
    margin: 2px 0 0;
    letter-spacing: 0.04em;
    text-transform: uppercase;
}

.ptl-panel-desc {
    font-size: 12px;
    color: #555;
    margin: 0 0 12px;
    line-height: 1.55;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.ptl-panel-cta {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 11.5px;
    font-weight: 600;
    color: #0a1f12;
    background: #0dc469;
    border-radius: 6px;
    padding: 6px 12px;
    text-decoration: none;
}

.ptl-panel-cta:hover {
    background: #11d775;
}

.ptl-panel-cta-locked {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 11.5px;
    font-weight: 600;
    color: #7a3b00;
    background: #ffe6cf;
    border: 1px solid #ffd2a8;
    border-radius: 6px;
    padding: 6px 12px;
    cursor: not-allowed;
}

/* The detail panel toggles children via the `hidden` attribute (hero vs hero-gate,
   icon vs icon-gate, cta vs cta-locked). Several of those children declare
   `display: flex|inline-flex`, which would otherwise override the UA default
   `[hidden] { display: none }`. Make `hidden` authoritative across the panel. */
.ptl-panel [hidden] {
    display: none !important;
}

/* ---------- Mobile fallback: collapse to a vertical card list ---------- */
@media (max-width: 700px) {
    .ptl-section {
        padding: 0 16px;
    }

    .ptl {
        padding: 0;
    }

    .ptl-plot,
    .ptl-axis {
        display: none;
    }

    .ptl-panel-wrap {
        position: static;
        min-height: 0;
    }

    .ptl-mobile {
        display: grid;
        gap: 10px;
    }

    .ptl-mobile-item {
        display: flex;
        align-items: center;
        gap: 12px;
        padding: 10px 14px;
        background: #f3f3f3;
        border-radius: 10px;
        border-left: 3px solid transparent;
        text-decoration: none;
        color: inherit;
        transition: background 0.18s ease, border-color 0.18s ease;
    }

    .ptl-mobile-item:hover {
        background: #ececec;
        border-left-color: #0dc469;
    }

    .ptl-mobile-item.is-wip {
        background: #fff7ef;
        border-left-color: #ff7a18;
        cursor: default;
    }

    .ptl-mobile-item.is-wip:hover {
        background: #fff7ef;
    }

    .ptl-mobile-item.is-wip .ptl-mobile-lock {
        width: 48px;
        height: 48px;
        border-radius: 6px;
        background: linear-gradient(135deg, #ffb066, #ff7a18);
        color: #fff;
        display: flex;
        align-items: center;
        justify-content: center;
        flex-shrink: 0;
    }

    .ptl-mobile-item.is-wip .ptl-mobile-meta {
        color: #ff7a18;
        font-weight: 600;
        text-transform: uppercase;
        letter-spacing: 0.04em;
        font-size: 10px;
    }

    .ptl-mobile-item img {
        width: 48px;
        height: 48px;
        object-fit: cover;
        border-radius: 6px;
        background: #ddd;
        flex-shrink: 0;
    }

    .ptl-mobile-item .ptl-mobile-name {
        font-size: 13px;
        font-weight: 600;
        color: #1c1c1c;
    }

    .ptl-mobile-item .ptl-mobile-meta {
        font-size: 11px;
        color: #777;
        margin-top: 2px;
    }
}

/* Hide the mobile list above the breakpoint */
@media (min-width: 701px) {
    .ptl-mobile {
        display: none;
    }
}