/* Blog: index (blog.html) and post pages (blog/*.html). Loaded after styles.css.
   Sizes are max(px floor, rem) so long-form type follows the large desktop
   root without dropping below a readable size when the root steps down. */

:root { --blog-ink: #3A3A35; }

.post-row-cat,
.post-lead-flag,
.post-cat,
.post-refs h2,
.post-pager-label {
    display: block;
    font-size: max(12px, 0.55rem);
    font-weight: 500;
    letter-spacing: 0.07em;
    text-transform: uppercase;
    color: var(--color-green);
}

/* ============================================================
   INDEX
   ============================================================ */
.blog-index { padding: 0 var(--page-pad) 5rem; }

/* One focal point: the newest post, then a plain dated list. */
.post-lead {
    display: grid;
    grid-template-columns: 1.1fr 1fr;
    gap: 3rem;
    align-items: center;
    padding: 2.5rem 0 3rem;
    border-top: 1px solid var(--color-border);
    color: inherit;
    text-decoration: none;
}
.post-lead-figure {
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-bg-warm);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    aspect-ratio: 7 / 5;
}
.post-lead-figure img {
    display: block;
    max-width: 100%;
    max-height: 100%;
    width: auto;
    height: auto;
    object-fit: contain;
}
.post-lead-text > span { display: block; }
.post-lead-flag { color: var(--color-orange); margin-bottom: 0.9rem; }
.post-lead-title {
    font-family: var(--font-display); font-weight: var(--display-weight);
    font-size: clamp(1.6rem, 3vw, 2.3rem);
    line-height: 1.1;
    letter-spacing: -0.01em;
    margin: 0.5rem 0 0.8rem;
    transition: color 0.2s ease;
}
.post-lead-deck {
    font-size: max(16px, 0.8rem);
    line-height: 1.6;
    color: var(--color-text-secondary);
    margin-bottom: 1.2rem;
}
.post-lead-meta {
    font-size: max(13px, 0.6rem);
    color: var(--color-text-light);
}
.post-lead:hover .post-lead-title { color: var(--color-green); }

.post-list { border-top: 1px solid var(--color-border); }
.post-row {
    display: grid;
    grid-template-columns: 7rem 1fr 11rem;
    gap: 2.5rem;
    align-items: baseline;
    padding: 1.6rem 0;
    border-bottom: 1px solid var(--color-border-light);
    color: inherit;
    text-decoration: none;
}
.post-row-main > span { display: block; }
.post-row-date {
    font-size: max(13px, 0.6rem);
    font-variant-numeric: tabular-nums;
    color: var(--color-text-light);
}
.post-row-title {
    font-family: var(--font-display); font-weight: var(--display-weight);
    font-size: max(21px, 1.1rem);
    line-height: 1.2;
    letter-spacing: -0.008em;
    margin: 0.3rem 0 0.35rem;
    transition: color 0.2s ease;
}
.post-row-deck {
    font-size: max(15px, 0.72rem);
    line-height: 1.55;
    color: var(--color-text-secondary);
}
.post-row-author {
    font-size: max(13px, 0.6rem);
    color: var(--color-text-secondary);
    text-align: right;
}
.post-row:hover .post-row-title { color: var(--color-green); }

/* ============================================================
   POST
   ============================================================ */
.post-wrap { padding: 9rem var(--page-pad) 4rem; }

/* Measure in ch of the body size, not rem, so line length stays readable
   whatever the root size is doing. */
.post,
.post-pager {
    max-width: 68ch;
    margin-inline: auto;
    font-size: max(17px, 0.84rem);
}

.post-back {
    display: inline-block;
    font-size: max(14px, 0.62rem);
    color: var(--color-text-secondary);
    text-decoration: none;
    margin-bottom: 2.5rem;
    transition: color 0.2s ease;
}
.post-back:hover { color: var(--color-green); }

.post-header h1 {
    font-family: var(--font-display);
    font-size: clamp(2rem, 4.2vw, 3rem);
    line-height: 1.08;
    letter-spacing: -0.012em;
    font-weight: var(--display-weight);
    margin: 0.6rem 0 1rem;
}
.post-deck {
    font-size: max(18px, 0.95rem);
    line-height: 1.5;
    color: var(--color-text-secondary);
    margin-bottom: 1.2rem;
}
.post-meta {
    font-size: max(13px, 0.6rem);
    color: var(--color-text-light);
    padding-bottom: 2rem;
    border-bottom: 1px solid var(--color-border);
}

.post-figure { margin: 2.5rem 0; }
/* The panel stretches; the image inside never grows past its native size,
   so the 300px diagram is not blown up to match the 500px structures. */
.post-figure-frame {
    display: flex;
    justify-content: center;
    background: var(--color-bg-warm);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
}
.post-figure-frame img {
    display: block;
    max-width: 100%;
    height: auto;
    max-height: 24rem;
    object-fit: contain;
}
.post-figure figcaption {
    font-size: max(13px, 0.6rem);
    line-height: 1.55;
    color: var(--color-text-light);
    margin-top: 0.9rem;
}
.post-figure figcaption a { color: inherit; }

.post-body p {
    line-height: 1.75;
    color: var(--blog-ink);
    margin-bottom: 1.25em;
}
.post-body h2 {
    font-family: var(--font-display);
    font-size: max(24px, 1.3rem);
    line-height: 1.2;
    letter-spacing: -0.008em;
    font-weight: var(--display-weight);
    margin: 2.5rem 0 0.9rem;
}
.post-body a { color: var(--color-green); }
.post-body sup { font-size: 0.7em; line-height: 0; }
.post-body sup a { font-weight: 500; text-decoration: none; }

.post-refs {
    margin-top: 3rem;
    padding-top: 2rem;
    border-top: 1px solid var(--color-border);
}
.post-refs h2 { font-family: var(--font-body); margin-bottom: 1.1rem; }
.post-refs ol { padding-left: 1.3em; }
.post-refs li {
    font-size: max(14px, 0.66rem);
    line-height: 1.55;
    color: var(--color-text-secondary);
    margin-bottom: 1rem;
    padding: 0.35rem 0.5rem;
    border-radius: var(--radius-sm);
    scroll-margin-top: 9rem;             /* clear the fixed nav when a citation jumps here */
    transition: background 0.4s ease;
}
.post-refs li:target { background: var(--color-green-soft); }
.post-refs li a {
    color: var(--color-text);
    text-decoration-color: var(--color-border);
    text-underline-offset: 3px;
}
.post-refs li a:hover { text-decoration-color: var(--color-green); }
.post-refs li span {
    display: block;
    color: var(--color-text-light);
    margin-top: 0.25rem;
}

.post-pager {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
    margin-top: 3.5rem;
}
.post-pager a {
    display: block;
    padding: 1.2rem 1.4rem;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    color: inherit;
    text-decoration: none;
    transition: border-color 0.2s ease;
}
.post-pager a:hover { border-color: var(--color-green); }
.post-pager-older { text-align: right; }
.post-pager-label { color: var(--color-text-light); margin-bottom: 0.4rem; }
.post-pager-title {
    display: block;
    font-family: var(--font-display); font-weight: var(--display-weight);
    font-size: max(18px, 0.95rem);
    line-height: 1.25;
}

/* Author box: rendered only when the author has a bio in _tools/team.py. */
.post-author {
    display: flex;
    gap: 1.25rem;
    align-items: flex-start;
    margin-top: 3rem;
    padding: 1.5rem;
    background: var(--color-bg-warm);
    border-radius: var(--radius-md);
}
.post-author-photo {
    flex: none;
    width: 4.5rem;
    height: 4.5rem;
    border-radius: 50%;
    object-fit: cover;
}
.post-author-label {
    font-size: max(12px, 0.55rem);
    font-weight: 500;
    letter-spacing: 0.07em;
    text-transform: uppercase;
    color: var(--color-text-light);
    margin-bottom: 0.3rem;
}
.post-author-name { font-size: max(16px, 0.8rem); font-weight: 500; }
.post-author-name a { color: var(--color-text); text-decoration: none; }
.post-author-name a:hover { color: var(--color-green); }
.post-author-role,
.post-author-bio {
    font-size: max(14px, 0.66rem);
    line-height: 1.55;
    color: var(--color-text-secondary);
}
.post-author-bio { margin-top: 0.45rem; }

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 1024px) {
    .blog-index { padding: 0 2rem 4rem; }
    .post-lead { grid-template-columns: 1fr; gap: 1.75rem; }
    .post-row { grid-template-columns: 6rem 1fr; gap: 1.75rem; }
    .post-row-author { grid-column: 2; text-align: left; margin-top: -0.8rem; }
    .post-wrap { padding: 9rem 2rem 4rem; }
}
@media (max-width: 768px) {
    .blog-index { padding: 0 1.5rem 3rem; }
    .post-row { grid-template-columns: 1fr; gap: 0.35rem; padding: 1.35rem 0; }
    .post-row-author { grid-column: auto; margin-top: 0.2rem; }
    .post-wrap { padding: 7rem 1.5rem 3rem; }
    .post-figure-frame { padding: 1rem; }
    .post-pager { grid-template-columns: 1fr; gap: 0.9rem; }
    .post-pager-older { text-align: left; }
}