/* Blog — index + article styles (builds on ../styles.css tokens) */
.blog main { max-width: var(--max); }

/* Index */
.bindex { padding-top: clamp(48px, 10vh, 110px); padding-bottom: 96px; }
.bindex__head h1 { font-family: var(--serif); font-size: clamp(3rem, 9vw, 7rem); line-height: .95; letter-spacing: -.02em; margin-top: 14px; }
.bindex__head h1 em { font-style: italic; color: var(--acc); }
.bindex__head p { color: var(--fg-2); max-width: 56ch; margin-top: 18px; font-size: 1.08rem; }
.filters { display: flex; gap: 8px; margin-top: 32px; flex-wrap: wrap; }
.filters button { height: 34px; padding: 0 14px; border: 1px solid var(--line); border-radius: 999px; color: var(--fg-2); transition: all .25s; }
.filters button sup { color: var(--mut); margin-left: 2px; }
.filters button.is-on, .filters button:hover { color: var(--fg); border-color: var(--fg-2); background: var(--bg-2); }
.pcards { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; margin-top: 48px; }
.pcard a { position: relative; display: flex; flex-direction: column; gap: 12px; height: 100%; padding: 26px; border: 1px solid var(--line); border-radius: 18px; background: color-mix(in srgb, var(--bg-2) 70%, transparent); transition: border-color .3s, transform .5s var(--ease), background .3s; }
.pcard a:hover { border-color: color-mix(in srgb, var(--fg) 30%, transparent); transform: translateY(-4px); background: var(--bg-2); }
.pcard[hidden] { display: none; }
.pcard__meta { display: flex; gap: 14px; color: var(--mut); align-items: center; flex-wrap: wrap; }
.pcard__title { font-family: var(--serif); font-size: clamp(1.6rem, 2.6vw, 2.1rem); line-height: 1.08; padding-right: 32px; }
.pcard__sum { color: var(--fg-2); font-size: .95rem; }
.pcard .post__tags { margin-top: auto; }
.pcard__go { position: absolute; top: 24px; right: 24px; color: var(--mut); transition: transform .4s var(--ease), color .3s; }
.pcard a:hover .pcard__go { color: var(--acc); transform: translate(3px, -3px); }
.kind { padding: 2px 9px; border-radius: 999px; border: 1px solid var(--line); color: var(--fg-2); }
.kind--security { color: var(--acc); border-color: color-mix(in srgb, var(--acc) 40%, transparent); }
.kind--engineering { color: #7aa2ff; border-color: rgba(122, 162, 255, .4); }
.post__tags { display: flex; flex-wrap: wrap; gap: 6px 14px; color: var(--mut); }
.post__tags li::before { content: "#"; opacity: .5; }

/* Article */
.post { padding-top: clamp(40px, 8vh, 90px); padding-bottom: 80px; }
.post__head { max-width: 860px; }
.post__back { color: var(--mut); transition: color .2s; }
.post__back:hover { color: var(--fg); }
.post__meta { display: flex; flex-wrap: wrap; gap: 16px; align-items: center; color: var(--mut); margin-top: 32px; }
.post__title { font-family: var(--serif); font-size: clamp(2.4rem, 6vw, 4.6rem); line-height: 1.02; letter-spacing: -.015em; margin-top: 18px; }
.post__summary { color: var(--fg-2); font-size: clamp(1.05rem, 1.6vw, 1.25rem); margin-top: 18px; max-width: 62ch; }
.post__head .post__tags { margin-top: 20px; }
.post__layout { display: grid; grid-template-columns: 220px minmax(0, 720px); gap: clamp(32px, 6vw, 80px); margin-top: 56px; padding-top: 40px; border-top: 1px solid var(--line); }
.post__toc { position: sticky; top: 96px; align-self: start; }
.post__toc p { color: var(--mut); margin-bottom: 12px; }
.post__toc ol { display: grid; gap: 8px; border-left: 1px solid var(--line); }
.post__toc a { display: block; padding-left: 14px; margin-left: -1px; border-left: 1px solid transparent; color: var(--mut); font-size: .86rem; line-height: 1.4; transition: color .2s, border-color .2s; }
.post__toc a:hover, .post__toc a.is-active { color: var(--fg); border-color: var(--acc); }

.prose { font-size: 1.06rem; line-height: 1.75; color: var(--fg-2); }
.prose > * + * { margin-top: 1.15em; }
.prose h2 { font-family: var(--serif); font-size: clamp(1.7rem, 3vw, 2.2rem); line-height: 1.15; color: var(--fg); margin-top: 2.2em; scroll-margin-top: 90px; }
.prose h3 { font-size: 1.15rem; font-weight: 600; color: var(--fg); margin-top: 1.8em; }
.prose strong { color: var(--fg); font-weight: 600; }
.prose a { color: var(--fg); text-decoration: underline; text-decoration-color: color-mix(in srgb, var(--acc) 60%, transparent); text-underline-offset: 3px; transition: color .2s; }
.prose a:hover { color: var(--acc); }
.prose ul, .prose ol { padding-left: 1.3em; }
.prose ul { list-style: disc; }
.prose ol { list-style: decimal; }
.prose li + li { margin-top: .45em; }
.prose li::marker { color: var(--mut); }
.prose code { font-family: var(--mono); font-size: .86em; padding: .12em .4em; border-radius: 5px; background: var(--bg-2); border: 1px solid var(--line); color: var(--fg); }
.prose pre { position: relative; overflow-x: auto; padding: 18px 20px; border-radius: 12px; border: 1px solid var(--line); background: color-mix(in srgb, var(--bg-2) 85%, #000 15%); line-height: 1.6; }
.prose pre code { padding: 0; border: 0; background: none; font-size: .84rem; color: var(--fg-2); }
.prose .copy { position: absolute; top: 10px; right: 10px; height: 26px; padding: 0 10px; border: 1px solid var(--line); border-radius: 6px; font: .7rem var(--mono); color: var(--mut); background: var(--bg); opacity: 0; transition: opacity .2s, color .2s; }
.prose pre:hover .copy, .prose .copy:focus-visible { opacity: 1; }
.prose .copy:hover { color: var(--fg); }
.prose blockquote { border-left: 2px solid var(--acc); padding-left: 18px; color: var(--fg); }
.prose h2#references ~ ul { list-style: none; padding: 0; font-size: .92rem; }
.prose h2#references ~ ul li { padding: 10px 0; border-top: 1px solid var(--line); }

.post__pager { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-top: 72px; }
.post__pg { display: flex; flex-direction: column; gap: 6px; padding: 22px; border: 1px solid var(--line); border-radius: 14px; font-family: var(--serif); font-size: 1.3rem; line-height: 1.2; transition: border-color .3s; }
.post__pg .mono { color: var(--mut); font-family: var(--mono); }
.post__pg:hover { border-color: var(--fg-2); }
.post__pg--next { text-align: right; }

@media (max-width: 900px) {
  .post__layout { grid-template-columns: 1fr; }
  .post__toc { display: none; }
  .pcards { grid-template-columns: 1fr; }
  .blog .nav__links { display: flex; gap: 18px; }
}
@media (max-width: 600px) {
  .post__pager { grid-template-columns: 1fr; }
  .post__pg--next { text-align: left; }
  .blog .nav__links li:not(:nth-child(3)) { display: none; }
}
@media (max-width: 900px) { .post__layout { grid-template-columns: minmax(0, 1fr); } }
.prose { overflow-wrap: anywhere; }
.prose pre { max-width: 100%; }