/* CORE — one readable stylesheet, no dependencies. */
:root {
  color-scheme: dark;
  --ink: #e7edf5;
  --muted: #98a9bc;
  --dim: #71849a;
  --blue: #7894b5;
  --blue-bright: #a4bbd4;
  --base: #10151b;
  --surface: #161e27;
  --surface-raised: #1c2732;
  --line: #314150;
  --max: 74rem;
  --reading: 45rem;
  --sans: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --serif: Iowan Old Style, Charter, "Bitstream Charter", Georgia, serif;
}

* { box-sizing: border-box; }
html { font-size: 100%; scroll-behavior: smooth; }
body { margin: 0; background: var(--base); color: var(--ink); font-family: var(--sans); font-size: 1rem; line-height: 1.6; }
a { color: inherit; text-decoration-thickness: .08em; text-underline-offset: .22em; }
a:hover { color: var(--blue-bright); }
a:focus-visible { outline: 2px solid var(--blue); outline-offset: 5px; border-radius: 2px; }
::selection { color: #0d1721; background: var(--blue-bright); }
.shell { width: min(calc(100% - 2.5rem), var(--max)); margin-inline: auto; }
.skip-link { position: fixed; top: .75rem; left: .75rem; z-index: 10; padding: .65rem 1rem; background: var(--blue); color: #0d1721; transform: translateY(-180%); }
.skip-link:focus { transform: none; }

.site-header { border-bottom: 1px solid var(--line); background: rgb(16 21 27 / 92%); }
.header-inner { position: relative; min-height: 6.25rem; display: flex; align-items: center; justify-content: space-between; gap: 2rem; }
.brand { display: flex; align-items: baseline; gap: .7rem; text-decoration: none; }
.brand span { font-weight: 850; font-size: 1.35rem; letter-spacing: .17em; }
.brand small { color: var(--muted); font-size: .72rem; letter-spacing: .08em; text-transform: uppercase; }
nav { display: flex; gap: 2rem; }
nav a { padding-block: .5rem; color: var(--muted); font-size: .86rem; font-weight: 700; letter-spacing: .08em; text-decoration: none; text-transform: uppercase; }
nav a[aria-current="page"] { color: var(--ink); border-bottom: 2px solid var(--blue); }
.menu-toggle, .mobile-nav { display: none; }
.menu-toggle { align-items: center; gap: .65rem; min-height: 2.75rem; padding: .55rem .8rem; border: 1px solid var(--line); border-radius: 0; background: var(--surface); color: var(--ink); cursor: pointer; font: inherit; font-size: .75rem; font-weight: 750; letter-spacing: .1em; text-transform: uppercase; }
.menu-toggle:hover { border-color: var(--blue); }
.menu-toggle:focus-visible { outline: 2px solid var(--blue); outline-offset: 4px; }
.menu-icon, .menu-icon::before, .menu-icon::after { display: block; width: 1.1rem; height: 2px; background: var(--blue); transition: transform .2s ease, opacity .2s ease; }
.menu-icon { position: relative; }
.menu-icon::before, .menu-icon::after { position: absolute; left: 0; content: ""; }
.menu-icon::before { top: -.35rem; }
.menu-icon::after { top: .35rem; }
.menu-toggle[aria-expanded="true"] .menu-icon { background: transparent; }
.menu-toggle[aria-expanded="true"] .menu-icon::before { top: 0; transform: rotate(45deg); }
.menu-toggle[aria-expanded="true"] .menu-icon::after { top: 0; transform: rotate(-45deg); }
.mobile-nav[hidden] { display: none !important; }
.mobile-nav a { display: block; min-height: 3.25rem; padding: .85rem 1rem; border-bottom: 1px solid var(--line); }
.mobile-nav a:last-child { border-bottom: 0; }
.mobile-nav a[aria-current="page"] { border-left: 2px solid var(--blue); background: rgb(120 148 181 / 12%); }

.eyebrow { margin: 0 0 1.5rem; color: var(--blue); font-size: .75rem; font-weight: 750; letter-spacing: .17em; text-transform: uppercase; }
.page-title h1, .article-header h1 { margin: 0; max-width: 13ch; font-family: var(--sans); font-size: clamp(3.4rem, 9.5vw, 8.5rem); font-weight: 800; letter-spacing: -.065em; line-height: .91; }

.archive { padding: 4.5rem 0 8rem; }
.section-heading { display: flex; align-items: baseline; justify-content: space-between; padding-bottom: 1rem; border-bottom: 1px solid var(--line); }
.section-heading h2, .section-heading span { margin: 0; font-size: .76rem; font-weight: 750; letter-spacing: .14em; text-transform: uppercase; }
.section-heading span { color: var(--dim); }
.post-row { display: grid; grid-template-columns: 3rem minmax(15rem, .72fr) minmax(18rem, 1fr); align-items: center; gap: clamp(1rem, 3vw, 3rem); padding: clamp(2.5rem, 6vw, 5rem) 0; border-bottom: 1px solid var(--line); }
.post-number { color: var(--dim); font-family: var(--serif); font-size: 1.1rem; }
.post-image { display: block; overflow: hidden; aspect-ratio: 16 / 9; border: 1px solid var(--line); background: var(--surface); text-decoration: none; }
.post-image img { display: block; width: 100%; height: 100%; object-fit: cover; transition: transform .45s ease, filter .45s ease; }
.post-image:hover img { transform: scale(1.025); filter: saturate(1.06) contrast(1.02); }
.post-copy { max-width: 52rem; }
.post-meta { margin: 0 0 1.25rem; color: var(--muted); font-size: .8rem; letter-spacing: .04em; text-transform: uppercase; }
.post-copy h3 { margin: 0; font-family: var(--sans); font-size: clamp(2.1rem, 4.6vw, 4.15rem); font-weight: 800; letter-spacing: -.045em; line-height: 1; }
.post-copy h3 a { text-decoration: none; }
.post-copy > p:not(.post-meta) { max-width: 39rem; margin: 1.4rem 0; color: var(--muted); font-size: 1.05rem; }
.read-link { color: var(--blue); font-size: .86rem; font-weight: 750; letter-spacing: .06em; text-decoration: none; text-transform: uppercase; }
.read-link span { display: inline-block; margin-left: .35rem; transition: transform .2s ease; }
.read-link:hover span { transform: translate(.15rem, -.15rem); }
.empty-note { display: flex; align-items: center; gap: .8rem; padding-top: 2rem; color: var(--dim); font-size: .88rem; }
.pulse { width: .5rem; height: .5rem; flex: 0 0 auto; border-radius: 50%; background: var(--blue); box-shadow: 0 0 1rem rgb(120 148 181 / 50%); }
.archive-note { max-width: 43rem; margin: 2rem 0 0 auto; color: var(--dim); font-size: .82rem; }

.page-layout { display: grid; grid-template-columns: minmax(15rem, .85fr) minmax(0, 1.15fr); gap: clamp(3rem, 9vw, 9rem); padding-block: clamp(5rem, 11vw, 9rem); }
.page-title h1 { font-size: clamp(3.25rem, 7vw, 6.5rem); }
.about-copy { padding-top: 3.25rem; }
.note { margin-top: 3rem !important; padding: 1.25rem 1.5rem; border-left: 2px solid var(--blue); background: var(--surface); color: var(--muted); font-size: .93rem; }

.article-layout { max-width: 62rem; padding-block: clamp(4rem, 10vw, 8rem); }
.article-header { margin-bottom: 4rem; padding-bottom: 3rem; border-bottom: 1px solid var(--line); }
.back-link { display: inline-block; margin-bottom: 4rem; color: var(--muted); font-size: .8rem; font-weight: 700; letter-spacing: .08em; text-decoration: none; text-transform: uppercase; }
.article-header h1 { max-width: 11ch; font-size: clamp(3.5rem, 9vw, 7.7rem); }
.article-image { width: min(100%, 58rem); margin: -1rem auto 4rem; overflow: hidden; border: 1px solid var(--line); background: var(--surface); }
.article-image img { display: block; width: 100%; height: auto; aspect-ratio: 16 / 9; object-fit: cover; }
.article-deck { max-width: 40rem; margin: 2rem 0; color: var(--muted); font-family: var(--serif); font-size: clamp(1.2rem, 2vw, 1.5rem); }
.byline { display: flex; flex-wrap: wrap; gap: .45rem 1.5rem; color: var(--dim); font-size: .78rem; letter-spacing: .05em; text-transform: uppercase; }
.prose { max-width: var(--reading); margin-inline: auto; font-family: var(--serif); font-size: clamp(1.08rem, 1.6vw, 1.22rem); line-height: 1.78; }
.prose p { margin: 0 0 1.5em; }
.prose .standfirst { color: #d2dce8; font-size: 1.3em; line-height: 1.55; }
.prose h2 { margin: 2.5em 0 .7em; color: var(--ink); font-family: var(--sans); font-size: 1.1rem; letter-spacing: .09em; text-transform: uppercase; }
.prose hr { margin: 3.5rem 0; border: 0; border-top: 1px solid var(--line); }
blockquote { margin: 2.75rem 0; padding: .25rem 0 .25rem 1.75rem; border-left: 2px solid var(--blue); color: var(--blue-bright); font-size: 1.25em; }
blockquote p { margin: 0 !important; }
.article-end { max-width: var(--reading); margin: 5rem auto 0; padding-top: 1.5rem; border-top: 1px solid var(--line); display: flex; justify-content: space-between; gap: 1rem; color: var(--dim); font-size: .78rem; letter-spacing: .06em; text-transform: uppercase; }
.article-end a { color: var(--blue); text-decoration: none; }
.source-card { max-width: var(--reading); margin: 4rem auto 0; padding: 1.5rem; border: 1px solid var(--line); background: var(--surface); }
.source-card strong { display: block; margin-bottom: .45rem; color: var(--ink); font-size: .75rem; letter-spacing: .12em; text-transform: uppercase; }
.source-card p { margin: 0; color: var(--muted); font-size: .92rem; }
.source-card a { color: var(--blue); }

.site-footer { border-top: 1px solid var(--line); }
.footer-inner { min-height: 8rem; display: flex; align-items: center; justify-content: space-between; gap: 1rem; color: var(--dim); font-size: .75rem; letter-spacing: .05em; text-transform: uppercase; }

@media (max-width: 48rem) {
  .shell { width: min(calc(100% - 2rem), var(--max)); }
  .header-inner { min-height: 5rem; }
  .brand small { display: none; }
  .desktop-nav { display: none; }
  .menu-toggle { display: inline-flex; }
  .mobile-nav { position: absolute; z-index: 20; top: calc(100% - .3rem); right: 0; width: min(18rem, calc(100vw - 2rem)); padding: .5rem; border: 1px solid var(--line); background: #17212b; box-shadow: 0 1.25rem 3rem rgb(0 0 0 / 45%); }
  .mobile-nav:not([hidden]) { display: grid; gap: 0; }
  .post-row { grid-template-columns: 2rem 1fr; align-items: start; }
  .post-image { grid-column: 2; }
  .post-copy { grid-column: 2; }
  .page-layout { grid-template-columns: 1fr; gap: 1rem; }
  .about-copy { padding-top: 0; }
}

@media (max-width: 30rem) {
  .header-inner { align-items: center; }
  .page-title h1, .article-header h1 { font-size: clamp(3rem, 15vw, 4.5rem); }
  .post-row { grid-template-columns: 1fr; }
  .post-number { display: none; }
  .post-image, .post-copy { grid-column: 1; }
  .byline { flex-direction: column; }
  .article-end, .footer-inner { align-items: flex-start; flex-direction: column; justify-content: center; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: .01ms !important; }
}