/* Aqera Resources: blog index and article pages. Builds on aqera.css tokens. */

/* ---------------------------------------------------------------- Index: series feature */
.series-feature { display: grid; grid-template-columns: minmax(0, .9fr) minmax(0, 1.1fr); gap: clamp(28px, 5vw, 64px); align-items: start; }
.series-intro { display: grid; gap: 18px; }
.series-list { list-style: none; margin: 0; padding: 0; border-top: 1px solid var(--line); }
.series-list a { display: grid; grid-template-columns: 40px minmax(0, 1fr) auto; gap: 16px; align-items: baseline; padding: 18px 4px; border-bottom: 1px solid var(--line); text-decoration: none; color: var(--fg); transition: background .2s; }
.series-list a:hover { background: var(--panel-2); }
.series-list .n, .series-mini .n { font-family: var(--mono); font-size: 12px; color: var(--fg-3); }
.series-list .m { font-family: var(--mono); font-size: 11px; color: var(--fg-3); white-space: nowrap; }
@media (max-width: 900px) { .series-feature { grid-template-columns: minmax(0, 1fr); } }

/* ---------------------------------------------------------------- Index: filters + grid */
.filters { display: flex; flex-wrap: wrap; gap: 8px; align-self: end; }
.filter { font-family: var(--mono); font-size: 11px; letter-spacing: .06em; text-transform: uppercase; padding: 7px 12px; border-radius: 999px; border: 1px solid var(--line-2); background: none; color: var(--fg-2); cursor: pointer; }
.filter:hover { color: var(--fg); border-color: rgba(255, 255, 255, .4); }
.filter[aria-pressed="true"] { background: var(--fg); color: var(--bg); border-color: var(--fg); }
.post-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; }
@media (max-width: 1040px) { .post-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 640px) { .post-grid { grid-template-columns: minmax(0, 1fr); } }
.post-card { text-decoration: none; gap: 14px; min-height: 280px; }
.post-meta, .post-foot { display: flex; flex-wrap: wrap; gap: 6px 14px; font-family: var(--mono); font-size: 11px; letter-spacing: .04em; color: var(--fg-3); }
.post-type { color: var(--fg); text-transform: uppercase; letter-spacing: .08em; }
.post-title { font-size: 21px; line-height: 1.3; letter-spacing: -.01em; font-weight: 400; }
.post-card p { font-size: 15px; }
.post-foot { margin-top: auto; padding-top: 14px; border-top: 1px solid var(--line); justify-content: space-between; }
.empty { color: var(--fg-3); font-family: var(--mono); font-size: 12px; margin-top: 20px; }

/* ---------------------------------------------------------------- Article: head */
.art-head { padding: calc(var(--header) + clamp(48px, 8vw, 96px)) 0 clamp(32px, 5vw, 56px); border-bottom: 1px solid var(--line); background: radial-gradient(120% 80% at 80% 0%, rgba(255, 255, 255, .06), transparent 60%); }
.art-head .wrap { display: grid; gap: 20px; }
.crumbs { display: flex; flex-wrap: wrap; gap: 8px; font-family: var(--mono); font-size: 11px; letter-spacing: .06em; text-transform: uppercase; color: var(--fg-3); }
.crumbs a { color: var(--fg-2); text-decoration: none; }
.crumbs a:hover { color: var(--fg); }
.art-title { font-size: clamp(32px, 4.6vw, 54px); line-height: 1.08; letter-spacing: -.025em; max-width: 22ch; }
.art-meta { display: flex; flex-wrap: wrap; gap: 6px 18px; font-family: var(--mono); font-size: 12px; color: var(--fg-3); }
.art-meta span:first-child { color: var(--fg); }

/* ---------------------------------------------------------------- Article: layout */
.art-layout { display: grid; grid-template-columns: 240px minmax(0, 1fr); gap: clamp(32px, 6vw, 88px); padding-top: clamp(40px, 6vw, 72px); padding-bottom: clamp(64px, 8vw, 120px); }
.art-aside { position: sticky; top: calc(var(--header) + 32px); align-self: start; display: grid; gap: 14px; }
.toc, .series-mini { list-style: none; margin: 0 0 18px; padding: 0; display: grid; gap: 2px; border-left: 1px solid var(--line); }
.toc a, .series-mini a { display: block; padding: 5px 0 5px 14px; margin-left: -1px; border-left: 1px solid transparent; font-size: 13.5px; line-height: 1.45; color: var(--fg-3); text-decoration: none; }
.toc a:hover, .series-mini a:hover { color: var(--fg); border-left-color: var(--fg-3); }
.series-mini a { display: grid; grid-template-columns: 26px minmax(0, 1fr); }
.series-mini li[aria-current="page"] a { color: var(--fg); border-left-color: var(--fg); }
@media (max-width: 1000px) {
  .art-layout { grid-template-columns: minmax(0, 1fr); }
  .art-aside { position: static; border: 1px solid var(--line); border-radius: var(--r); padding: 18px; background: var(--panel); }
  .series-mini, .art-aside .caption + .toc ~ .caption { display: none; }
}

/* ---------------------------------------------------------------- Article: body typography */
.art-body { max-width: 720px; min-width: 0; }
.art-body > * + * { margin-top: 20px; }
.art-body p, .art-body li { font-size: 17.5px; line-height: 1.75; color: var(--fg-2); max-width: none; }
.art-body p:first-child { font-size: 20px; line-height: 1.6; color: var(--fg); }
.art-body h2 { font-size: clamp(24px, 2.6vw, 30px); line-height: 1.25; letter-spacing: -.015em; margin-top: 56px; padding-top: 8px; }
.art-body h3 { font-size: 20px; margin-top: 36px; }
.art-body strong { color: var(--fg); font-weight: 500; }
.art-body em { font-style: italic; }
.art-body ul, .art-body ol { padding-left: 22px; display: grid; gap: 10px; }
.art-body li::marker { color: var(--fg-3); }
.art-body a { color: var(--fg); text-underline-offset: 3px; text-decoration-color: rgba(255, 255, 255, .35); }
.art-body a:hover { text-decoration-color: var(--fg); }
.art-body .table-wrap { margin-top: 28px; }
.art-body table { font-size: 14px; }
.art-body th { text-align: left; font-family: var(--mono); font-size: 11px; letter-spacing: .06em; text-transform: uppercase; color: var(--fg-3); font-weight: 400; }
.art-body td, .art-body th { padding: 12px 14px; border-bottom: 1px solid var(--line); vertical-align: top; color: var(--fg-2); line-height: 1.55; }
.art-body tr:last-child td { border-bottom: 0; }
.art-body td:first-child { color: var(--fg); }
.art-figure { margin: 36px 0 8px; padding: 20px; border: 1px solid var(--line); border-radius: var(--r); background: var(--panel); }
.art-figure svg { display: block; width: 100%; height: auto; }
.art-figure figcaption { margin-top: 12px; font-family: var(--mono); font-size: 11px; letter-spacing: .04em; color: var(--fg-3); }

/* ---------------------------------------------------------------- Article: sources, note, pager */
.art-sources { margin-top: 56px; padding-top: 28px; border-top: 1px solid var(--line); }
.art-sources h2 { font-family: var(--mono); font-size: 12px; letter-spacing: .08em; text-transform: uppercase; color: var(--fg-3); margin: 0 0 16px; padding: 0; }
.art-sources ul { padding-left: 18px; display: grid; gap: 8px; }
.art-sources li, .art-sources p { font-size: 14px; line-height: 1.6; color: var(--fg-3); }
.art-sources a { color: var(--fg-2); }
.ai-note { margin-top: 36px; padding: 18px 20px; border: 1px solid var(--line); border-radius: var(--r); background: var(--panel); display: grid; gap: 8px; }
.ai-note p:last-child { font-size: 14px; line-height: 1.6; color: var(--fg-3); }
.art-tags { margin-top: 28px; }
.pager { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; margin-top: 40px; }
.pager .card { text-decoration: none; gap: 8px; }
.pager .card span:last-child { color: var(--fg); font-size: 16px; line-height: 1.4; }
.pager .next { text-align: right; }
@media (max-width: 640px) { .pager { grid-template-columns: minmax(0, 1fr); } .pager .next { text-align: left; } }
@media (max-width: 640px) { .art-figure { overflow-x: auto; padding: 14px; } .art-figure svg { min-width: 640px; } }