/* Event sourcing series — interactive architecture diagram (page-scoped) */

.esd {
    --esd-log: #00e5ff;
    --esd-line: rgba(121, 192, 255, 0.55);
    --esd-write: #79c0ff;
    --esd-read: #7ee787;
    --esd-react: #d2a8ff;
}

.esd-intro {
    color: var(--muted-text);
    margin: 1.5rem 0;
    font-size: 1.05rem;
}

/* Detail panel below the diagram */
.esd-detail {
    margin-top: 1rem;
}

.esd-detail__hint {
    text-align: center;
    color: var(--muted-text);
    font-size: 0.95rem;
    padding: 1rem;
    border: 1px dashed var(--card-border);
    border-radius: var(--border-radius);
}

.esd-detail__panel {
    background: var(--card-background);
    border: 1px solid var(--card-border);
    border-radius: var(--border-radius);
    padding: 1.25rem 1.25rem 0.5rem;
    animation: esd-fade 0.25s ease;
}

@keyframes esd-fade {
    from { opacity: 0; transform: translateY(6px); }
    to { opacity: 1; transform: translateY(0); }
}

.esd-detail__head {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-bottom: 1rem;
}

.esd-detail__blurb {
    color: var(--muted-text);
    font-size: 0.9rem;
}

.esd-detail__badge {
    display: inline-block;
    font-size: 0.72rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    padding: 0.2rem 0.6rem;
    border-radius: 999px;
    color: #0d1117;
    background: var(--accent, var(--primary-color));
}

.esd-detail__badge--log { --accent: var(--esd-log); }
.esd-detail__badge--write { --accent: var(--esd-write); }
.esd-detail__badge--read { --accent: var(--esd-read); }
.esd-detail__badge--react { --accent: var(--esd-react); }

.esd-detail__empty {
    color: var(--muted-text);
    font-size: 0.9rem;
    padding: 0 0 1rem;
    margin: 0;
}

.esd-posts {
    list-style: none;
    display: grid;
    gap: 0.6rem;
}

.esd-post__link {
    display: grid;
    grid-template-columns: 1fr auto;
    grid-template-areas:
        "title meta"
        "desc desc";
    gap: 0.25rem 1rem;
    padding: 0.85rem 1rem;
    border: 1px solid var(--card-border);
    border-radius: 10px;
    text-decoration: none;
    color: var(--text-color);
    transition: border-color var(--transition-speed), background var(--transition-speed), transform var(--transition-speed);
}

.esd-post__link:hover {
    border-color: var(--primary-color);
    background: rgba(255, 255, 255, 0.06);
    transform: translateX(3px);
}

.esd-post__title {
    grid-area: title;
    font-weight: 600;
    font-size: 1rem;
}

.esd-post__meta {
    grid-area: meta;
    align-self: center;
    font-size: 0.78rem;
    color: var(--muted-text);
    white-space: nowrap;
}

.esd-post__desc {
    grid-area: desc;
    font-size: 0.88rem;
    color: var(--muted-text);
    line-height: 1.45;
}

/* ---------------------------------------------------------------- */
/* Architecture diagram                                             */
/* ---------------------------------------------------------------- */
.esd-arch {
    position: relative;
    width: 100%;
    max-width: 820px;
    aspect-ratio: 100 / 80;
    margin: 1rem auto 1.5rem;
}

.esd-arch__edges {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    overflow: visible;
    pointer-events: none;
}

.esd-arch-arrow {
    fill: none;
    stroke: var(--esd-line);
    stroke-width: 2;
    stroke-linecap: round;
}

.esd-arch-arrow--dashed {
    stroke-dasharray: 6 5;
}

.esd-arch-arrowhead {
    fill: rgba(121, 192, 255, 0.75);
}

.esd-arch-edge-label {
    fill: var(--muted-text);
    font-family: var(--font-family);
    font-size: 11px;
    paint-order: stroke;
    stroke: #0d1117;
    stroke-width: 3px;
    stroke-linejoin: round;
}

.esd-arch__region {
    position: absolute;
    left: var(--x);
    top: var(--y);
    width: var(--w);
    height: var(--h);
    z-index: 0;
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 18px;
    background: rgba(255, 255, 255, 0.02);
    pointer-events: none;
}

.esd-arch__region--write { --accent: var(--esd-write); }
.esd-arch__region--read { --accent: var(--esd-read); }
.esd-arch__region--react { --accent: var(--esd-react); }

.esd-arch__region-label {
    position: absolute;
    top: 0.55rem;
    left: 0.9rem;
    font-size: 0.66rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.16em;
    color: var(--accent, var(--muted-text));
    opacity: 0.85;
}

.esd-arch__node {
    position: absolute;
    left: var(--x);
    top: var(--y);
    transform: translate(-50%, -50%);
    z-index: 1;
    width: 12%;
    min-height: 4.2rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 0.15rem;
    padding: 0.55rem 0.5rem;
    text-align: center;
    font-family: inherit;
    color: var(--text-color);
    background: var(--card-background);
    backdrop-filter: blur(20px);
    border: 2px solid var(--accent, var(--card-border));
    border-radius: 10px;
    cursor: pointer;
    transition: transform var(--transition-speed), box-shadow var(--transition-speed), background var(--transition-speed);
}

.esd-arch__node--write { --accent: var(--esd-write); }
.esd-arch__node--log { --accent: var(--esd-log); }
.esd-arch__node--read { --accent: var(--esd-read); }
.esd-arch__node--react { --accent: var(--esd-react); }

.esd-arch__node--bar {
    width: 13%;
    height: 36%;
    min-height: 0;
    border-width: 2px;
    box-shadow: inset 0 0 40px -18px var(--accent);
}

.esd-arch__node--message {
    width: auto;
    min-width: 6%;
    min-height: 0;
    flex-direction: row;
    align-items: center;
    gap: 0.4rem;
    padding: 0.35rem 0.7rem;
    border-width: 1.5px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.06);
    white-space: nowrap;
}

.esd-arch__node--message .esd-arch__node-label {
    font-size: clamp(0.6rem, 1vw, 0.74rem);
}

.esd-arch__node--message .esd-arch__node-blurb {
    display: none;
}

.esd-arch__node--message .esd-arch__node-count {
    position: static;
    min-width: 1.1rem;
    height: 1.1rem;
}

.esd-arch__node:hover,
.esd-arch__node:focus-visible {
    transform: translate(-50%, -50%) scale(1.05);
    background: rgba(255, 255, 255, 0.14);
    box-shadow: 0 0 22px -4px var(--accent);
    outline: none;
}

.esd-arch__node.is-active {
    background: rgba(255, 255, 255, 0.16);
    box-shadow: 0 0 26px -2px var(--accent);
}

.esd-arch__node-count {
    position: absolute;
    top: -0.6rem;
    right: -0.6rem;
    min-width: 1.4rem;
    height: 1.4rem;
    padding: 0 0.3rem;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.72rem;
    font-weight: 700;
    color: #0d1117;
    background: var(--accent);
    border-radius: 999px;
}

.esd-arch__node-label {
    font-size: clamp(0.68rem, 1.3vw, 0.9rem);
    font-weight: 600;
    line-height: 1.15;
}

.esd-arch__node-blurb {
    font-size: clamp(0.52rem, 0.95vw, 0.66rem);
    line-height: 1.2;
    color: var(--muted-text);
}

/* ---------------------------------------------------------------- */
/* Mobile                                                           */
/* ---------------------------------------------------------------- */
@media (max-width: 760px) {
    .esd-post__link {
        grid-template-columns: 1fr;
        grid-template-areas: "title" "desc" "meta";
    }

    .esd-arch {
        aspect-ratio: auto;
        max-width: none;
        display: grid;
        grid-template-columns: 1fr;
        gap: 0.75rem;
        margin-top: 0.5rem;
    }

    .esd-arch__edges {
        display: none;
    }

    .esd-arch__node {
        position: static;
        transform: none;
        width: 100%;
        min-height: 0;
        flex-direction: row;
        justify-content: flex-start;
        align-items: center;
        gap: 0.6rem;
        padding: 1rem 1.25rem;
        text-align: left;
    }

    .esd-arch__node:hover,
    .esd-arch__node:focus-visible {
        transform: none;
    }

    .esd-arch__node-count {
        position: static;
        order: 3;
        margin-left: auto;
    }

    .esd-arch__node-label {
        font-size: 1rem;
    }

    .esd-arch__node-blurb {
        font-size: 0.8rem;
    }

    .esd-arch__node--message {
        width: auto;
        justify-self: start;
        padding: 0.5rem 0.9rem;
    }
}