/* Physics in the Age of AI — site styles
   Plain CSS (no build step); system fonts only (no third-party requests). */

/* ---------- Tokens (dark theme) ---------- */
:root {
  --bg: #0f1114;
  --bg-elev: #15181d;
  --surface: #191c22;
  --ink: #ecebe6;
  --ink-2: #c6c9d1;
  --muted: #9399a5;
  --rule: #272b33;
  --rule-strong: #3a3f49;
  --accent: #9aabff;
  --accent-hover: #b8c4ff;
  --accent-ink: #0f1114;
  --accent-soft: #1d2340;
  --band-bg: #1a1f3f;
  --band-ink: #ecebe6;
  --band-muted: #a9aecb;
  --figure-bg: #0b0d11;
  --t-perspectives: #a9b7ff;
  --t-perspectives-bg: #1d2340;
  --t-results: #6fd3c3;
  --t-results-bg: #10302b;
  --t-methods: #f2b27a;
  --t-methods-bg: #35240f;
  --shadow: 0 1px 2px rgba(0, 0, 0, .3), 0 8px 24px rgba(0, 0, 0, .25);
  --radius: 10px;
  --font-serif: "Iowan Old Style", "Palatino Linotype", Palatino, "URW Palladio L", P052, "Book Antiqua", Georgia, serif;
  --font-sans: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-mono: ui-monospace, "SF Mono", SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;
  color-scheme: dark;
}

/* ---------- Base ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; text-size-adjust: 100%; scroll-padding-top: 80px; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 400 1.0625rem/1.6 var(--font-sans);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}
img, svg, canvas { display: block; max-width: 100%; }
a { color: var(--accent); text-decoration-thickness: 1px; text-underline-offset: .18em; }
a:hover { color: var(--accent-hover); }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 4px; }
h1, h2, h3, h4 {
  font-family: var(--font-serif);
  font-weight: 400;
  line-height: 1.15;
  letter-spacing: -.01em;
  margin: 0 0 .5em;
  color: var(--ink);
}
p { margin: 0 0 1em; }
code { font-family: var(--font-mono); font-size: .88em; }
[hidden] { display: none !important; }
.container { width: 100%; max-width: 1160px; margin-inline: auto; padding-inline: 24px; }
.muted { color: var(--muted); }
.visually-hidden {
  position: absolute !important; width: 1px; height: 1px; overflow: hidden;
  clip: rect(0 0 0 0); white-space: nowrap;
}
.skip-link { position: absolute; left: -9999px; top: 8px; z-index: 100; }
.skip-link:focus { left: 16px; background: var(--surface); padding: 8px 12px; border-radius: 8px; box-shadow: var(--shadow); }

.eyebrow {
  font: 500 .76rem/1.4 var(--font-mono);
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--muted);
  margin: 0 0 1.1em;
}

/* ---------- Prototype banner ---------- */
.proto-banner {
  background: var(--accent-soft);
  color: var(--ink-2);
  font: 500 .76rem/1.4 var(--font-mono);
  letter-spacing: .03em;
  text-align: center;
  padding: 7px 16px;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .5em;
  padding: .72em 1.2em;
  border-radius: 999px;
  border: 1px solid transparent;
  font: 600 .94rem/1.1 var(--font-sans);
  text-decoration: none;
  cursor: pointer;
  transition: background-color .15s, color .15s, border-color .15s;
  white-space: nowrap;
}
.btn-primary { background: var(--accent); color: var(--accent-ink); }
.btn-primary:hover { background: var(--accent-hover); color: var(--accent-ink); }
.btn-secondary { background: transparent; color: var(--ink); border-color: var(--rule-strong); }
.btn-secondary:hover { border-color: var(--ink); color: var(--ink); }
.btn-ghost { background: transparent; color: var(--accent); padding-inline: .4em; }
.btn-ghost:hover { color: var(--accent-hover); text-decoration: underline; }
.btn-small { padding: .55em .95em; font-size: .88rem; }
.icon-btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  min-width: 36px; height: 36px; padding: 0 10px;
  border: 1px solid var(--rule-strong); border-radius: 999px;
  background: transparent; color: var(--ink-2);
  font: 500 .8rem var(--font-sans);
  cursor: pointer;
}
.icon-btn:hover { color: var(--ink); border-color: var(--ink-2); }
.icon-btn svg { width: 16px; height: 16px; }
.link-arrow { font-weight: 600; text-decoration: none; white-space: nowrap; }
.link-arrow::after { content: " →"; }
.link-back { font-weight: 600; text-decoration: none; }
.link-back::before { content: "← "; }

/* ---------- Header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 30;
  background: var(--bg);
  background: color-mix(in srgb, var(--bg) 90%, transparent);
  -webkit-backdrop-filter: saturate(1.4) blur(10px);
  backdrop-filter: saturate(1.4) blur(10px);
  border-bottom: 1px solid var(--rule);
}
.header-inner { display: flex; align-items: center; gap: 16px; height: 64px; }
.brand {
  display: flex; align-items: center; gap: 10px;
  color: var(--ink); text-decoration: none;
  font-family: var(--font-serif); font-size: 1.14rem; letter-spacing: -.005em;
  white-space: nowrap;
}
.brand:hover { color: var(--ink); }
.brand-mark { width: 22px; height: 22px; color: var(--accent); flex: none; }
.brand-name em { font-style: italic; }
.site-nav { margin-left: auto; }
.site-nav ul { display: flex; align-items: center; gap: 2px; list-style: none; margin: 0; padding: 0; }
.site-nav a:not(.btn) {
  display: block; padding: 8px 12px; border-radius: 8px;
  color: var(--ink-2); text-decoration: none; font-size: .95rem;
}
.site-nav a:not(.btn):hover { background: var(--bg-elev); color: var(--ink); }
.site-nav a:not(.btn)[aria-current="page"] { color: var(--ink); box-shadow: inset 0 -2px 0 var(--accent); border-radius: 0; }
.site-nav li.nav-cta { margin-left: 8px; }
.header-tools { display: flex; align-items: center; gap: 8px; }
.nav-toggle { display: none; }

@media (max-width: 900px) {
  .nav-toggle { display: inline-flex; }
  .header-tools { margin-left: auto; }
  .site-nav {
    position: absolute; left: 0; right: 0; top: 100%;
    background: var(--bg); border-bottom: 1px solid var(--rule);
    box-shadow: var(--shadow);
    display: none;
  }
  .site-nav.is-open { display: block; }
  .site-nav ul { flex-direction: column; align-items: stretch; padding: 8px 16px 16px; gap: 0; }
  .site-nav a:not(.btn) { padding: 12px 8px; border-bottom: 1px solid var(--rule); border-radius: 0; }
  .site-nav a:not(.btn)[aria-current="page"] { box-shadow: inset 3px 0 0 var(--accent); padding-left: 14px; }
  .site-nav li.nav-cta { margin: 14px 0 0; }
  .site-nav li.nav-cta .btn { width: 100%; }
}

/* ---------- Hero ---------- */
.hero { padding: 72px 0 64px; border-bottom: 1px solid var(--rule); }
.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.12fr) minmax(0, .88fr);
  gap: 64px;
  align-items: center;
}
.hero-title {
  font-size: clamp(2.7rem, 6.4vw, 5.1rem);
  line-height: .98;
  letter-spacing: -.028em;
  margin: 0 0 .4em;
}
.hero-title em { font-style: italic; }
.lede {
  font-size: clamp(1.1rem, 1.55vw, 1.28rem);
  line-height: 1.5;
  color: var(--ink-2);
  max-width: 33em;
  margin: 0;
}
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 32px; }

.hero-figure { width: 100%; max-width: 460px; justify-self: end; }
.hero-figure > figure { margin: 0; }
.fig-frame {
  background: var(--surface);
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  padding: 10px;
  box-shadow: var(--shadow);
}
.fig-frame canvas {
  display: block; width: 100%; height: auto; aspect-ratio: 1 / 1;
  border-radius: 6px;
  background: var(--figure-bg);
}
.fig-controls {
  display: flex; align-items: center; gap: 10px;
  margin-top: 12px;
  font: 500 .8rem var(--font-mono);
  color: var(--muted);
}
.fig-now { flex: 1; min-width: 0; color: var(--ink-2); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.fig-count { white-space: nowrap; }
.fig-caption { font-size: .84rem; line-height: 1.5; color: var(--muted); margin-top: 12px; }
.fig-label { font-weight: 600; color: var(--ink-2); margin-right: .35em; }

@media (max-width: 880px) {
  .hero { padding: 48px 0 48px; }
  .hero-grid { grid-template-columns: minmax(0, 1fr); gap: 40px; }
  .hero-figure { justify-self: start; }
}

/* ---------- Next session ---------- */
.next { padding: 40px 0; background: var(--bg-elev); border-bottom: 1px solid var(--rule); }
.next-card {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: 32px;
  align-items: center;
}
.date-tile {
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  width: 108px; height: 108px; flex: none;
  border: 1px solid var(--rule-strong);
  border-radius: var(--radius);
  background: var(--surface);
}
.date-tile .d-week, .date-tile .d-month {
  font: 500 .7rem/1.3 var(--font-mono); text-transform: uppercase; letter-spacing: .08em; color: var(--muted);
}
.date-tile .d-day { font: 400 2.6rem/1.05 var(--font-serif); color: var(--ink); }
.next-body .eyebrow { margin-bottom: .5em; }
.next-body .eyebrow strong { color: var(--accent); font-weight: 600; }
.next-title { font-size: clamp(1.4rem, 2.6vw, 1.95rem); margin: 0 0 .3em; }
.next-title a { color: inherit; text-decoration: none; }
.next-title a:hover { color: var(--accent); }
.next-line { margin: 0; color: var(--ink-2); }
.next-line + .next-line { color: var(--muted); font-size: .95rem; margin-top: 2px; }
.next-actions { display: flex; flex-direction: column; gap: 10px; }
.next-empty { margin: 0; color: var(--ink-2); }

@media (max-width: 760px) {
  .next-card { grid-template-columns: auto minmax(0, 1fr); gap: 18px 20px; }
  .date-tile { width: 80px; height: 84px; }
  .date-tile .d-day { font-size: 2rem; }
  .next-actions { grid-column: 1 / -1; flex-direction: row; flex-wrap: wrap; }
}

/* ---------- Sections ---------- */
.section { padding: 72px 0; border-bottom: 1px solid var(--rule); }
.section-head {
  display: flex; align-items: baseline; justify-content: space-between;
  gap: 12px 24px; flex-wrap: wrap;
  margin-bottom: 28px;
}
.section-head h2 { font-size: clamp(1.7rem, 3vw, 2.3rem); margin: 0; }
.section-head p { margin: 0; color: var(--muted); }

.split { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 2fr); gap: 48px; }
.split h2 { font-size: clamp(1.7rem, 3vw, 2.3rem); }
.big {
  font-family: var(--font-serif);
  font-size: clamp(1.3rem, 2.3vw, 1.65rem);
  line-height: 1.38;
  color: var(--ink);
  margin-bottom: .8em;
}
.split p:not(.big) { color: var(--ink-2); max-width: 40em; }
@media (max-width: 760px) {
  .section { padding: 56px 0; }
  .split { grid-template-columns: minmax(0, 1fr); gap: 8px; }
}

/* ---------- Strands ---------- */
.strand-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; }
.strand {
  --c: var(--t-perspectives);
  display: flex; flex-direction: column;
  padding: 24px 24px 22px;
  background: var(--surface);
  border: 1px solid var(--rule);
  border-top: 3px solid var(--c);
  border-radius: var(--radius);
  color: var(--ink);
  text-decoration: none;
  transition: transform .15s, box-shadow .15s;
}
.strand:hover { transform: translateY(-2px); box-shadow: var(--shadow); color: var(--ink); }
.strand--results { --c: var(--t-results); }
.strand--methods { --c: var(--t-methods); }
.strand-num { font: 500 .78rem var(--font-mono); letter-spacing: .06em; color: var(--c); }
.strand h3 { font-size: 1.6rem; margin: .45em 0 .35em; }
.strand p { color: var(--ink-2); font-size: .98rem; flex: 1; }
.strand-more { font-weight: 600; font-size: .9rem; color: var(--c); }
@media (max-width: 860px) { .strand-grid { grid-template-columns: minmax(0, 1fr); } }

/* ---------- Tags ---------- */
.tag {
  --c: var(--t-perspectives); --cb: var(--t-perspectives-bg);
  display: inline-block;
  padding: 3px 9px;
  border-radius: 999px;
  font: 600 .66rem/1.45 var(--font-mono);
  letter-spacing: .07em;
  text-transform: uppercase;
  color: var(--c); background: var(--cb);
  white-space: nowrap;
}
.tag--results { --c: var(--t-results); --cb: var(--t-results-bg); }
.tag--methods { --c: var(--t-methods); --cb: var(--t-methods-bg); }
.dot { display: inline-block; width: 8px; height: 8px; border-radius: 50%; background: var(--t-perspectives); }
.dot--results { background: var(--t-results); }
.dot--methods { background: var(--t-methods); }

/* ---------- Event list ---------- */
.event-list { list-style: none; margin: 0; padding: 0; border-top: 1px solid var(--rule); }
.event-row { border-bottom: 1px solid var(--rule); }
.event-link {
  display: grid;
  grid-template-columns: 116px minmax(0, 1fr) 24px;
  gap: 24px;
  align-items: start;
  padding: 22px 10px;
  color: var(--ink);
  text-decoration: none;
  transition: background-color .15s;
}
.event-link:hover { background: var(--bg-elev); color: var(--ink); }
.event-link:hover .event-title { color: var(--accent); }
.event-date { display: flex; flex-direction: column; }
.event-day { font: 400 2.1rem/1 var(--font-serif); }
.event-month { font: 500 .72rem/1.3 var(--font-mono); text-transform: uppercase; letter-spacing: .08em; color: var(--muted); margin-top: 6px; }
.event-meta { display: flex; flex-wrap: wrap; gap: 6px 10px; align-items: center; margin-bottom: 8px; }
.event-kind { font-size: .86rem; color: var(--muted); }
.event-title { font-size: 1.36rem; line-height: 1.25; margin: 0 0 6px; transition: color .15s; }
.event-speaker { margin: 0; color: var(--ink-2); }
.event-when { margin: 2px 0 0; font-size: .9rem; color: var(--muted); }
.event-arrow { align-self: center; color: var(--muted); font-size: 1.1rem; }
.event-materials { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 12px; }
.event-row--notice .event-link:hover { background: none; }
.event-row--notice .event-title { font-size: 1.15rem; color: var(--ink-2); }
.event-row--notice .event-speaker, .event-row--notice .event-day { color: var(--muted); }
@media (max-width: 600px) {
  .event-link { grid-template-columns: 64px minmax(0, 1fr); gap: 16px; padding: 20px 4px; }
  .event-day { font-size: 1.7rem; }
  .event-arrow { display: none; }
}

.chip {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 4px 11px;
  border: 1px solid var(--rule-strong);
  border-radius: 999px;
  font-size: .82rem; color: var(--ink-2);
  text-decoration: none; background: var(--surface);
}
a.chip:hover { border-color: var(--accent); color: var(--accent); }

.example-card {
  margin-top: 20px;
  border: 1.5px dashed var(--rule-strong);
  border-radius: var(--radius);
  padding: 18px 22px;
  color: var(--muted);
}
.example-card .example-label {
  font: 600 .7rem var(--font-mono); text-transform: uppercase; letter-spacing: .08em;
  color: var(--muted); margin: 0 0 10px;
}
.example-card .event-title { font-size: 1.2rem; color: var(--ink-2); }

.empty { color: var(--muted); padding: 18px 0; margin: 0; }

/* ---------- Posts ---------- */
.post-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 20px; }
.post-card {
  display: flex; flex-direction: column;
  padding: 24px;
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  background: var(--surface);
  color: var(--ink);
  text-decoration: none;
  transition: box-shadow .15s;
}
.post-card:hover { box-shadow: var(--shadow); color: var(--ink); }
.post-card:hover h3 { color: var(--accent); }
.post-date { font: 500 .74rem/1.4 var(--font-mono); text-transform: uppercase; letter-spacing: .07em; color: var(--muted); margin: 0; }
.post-card h3 { font-size: 1.4rem; line-height: 1.25; margin: .55em 0 .45em; transition: color .15s; }
.post-card p.post-excerpt { color: var(--ink-2); margin: 0; font-size: .98rem; }
@media (max-width: 760px) { .post-grid { grid-template-columns: minmax(0, 1fr); } }

.post-list { list-style: none; margin: 0; padding: 0; border-top: 1px solid var(--rule); }
.post-list li { border-bottom: 1px solid var(--rule); }
.post-list a { display: block; padding: 28px 0; color: var(--ink); text-decoration: none; }
.post-list a:hover h2 { color: var(--accent); }
.post-list h2 { font-size: clamp(1.45rem, 2.6vw, 1.85rem); margin: .4em 0 .35em; transition: color .15s; }
.post-list p.post-excerpt { color: var(--ink-2); margin: 0; max-width: 46em; }
.post-list .post-author { color: var(--muted); font-size: .92rem; margin: .6em 0 0; }

/* ---------- Subscribe band ---------- */
.band { background: var(--band-bg); color: var(--band-ink); padding: 64px 0; }
.band-grid { display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(0, .8fr); gap: 40px; align-items: center; }
.band h2 { color: var(--band-ink); font-size: clamp(1.7rem, 3vw, 2.3rem); margin-bottom: .35em; }
.band p { color: var(--band-muted); margin: 0; max-width: 36em; }
.band-actions { display: flex; flex-wrap: wrap; gap: 12px; justify-content: flex-end; }
.band .btn-primary { background: var(--band-ink); color: var(--band-bg); }
.band .btn-primary:hover { background: #ffffff; color: var(--band-bg); }
.band .btn-secondary { color: var(--band-ink); border-color: rgba(255, 255, 255, .3); }
.band .btn-secondary:hover { border-color: var(--band-ink); color: var(--band-ink); }
@media (max-width: 760px) {
  .band-grid { grid-template-columns: minmax(0, 1fr); gap: 24px; }
  .band-actions { justify-content: flex-start; }
}

/* ---------- Inner pages ---------- */
.page-head { padding: 56px 0 36px; border-bottom: 1px solid var(--rule); }
.page-head h1 { font-size: clamp(2.3rem, 4.8vw, 3.4rem); letter-spacing: -.02em; margin: 0 0 .25em; }
.page-head p { color: var(--ink-2); font-size: 1.12rem; max-width: 40em; margin: 0; }
.page-head p + p { margin-top: .6em; }
.page-body { padding: 48px 0 80px; }
.crumbs { font-size: .9rem; margin: 0 0 18px; color: var(--muted); }
.crumbs a { color: var(--muted); text-decoration: none; }
.crumbs a:hover { color: var(--accent); }

.list-heading {
  font: 600 .76rem/1.4 var(--font-mono); letter-spacing: .08em; text-transform: uppercase;
  color: var(--muted); margin: 44px 0 14px;
}
.list-heading:first-of-type { margin-top: 8px; }

.filters { display: flex; flex-wrap: wrap; gap: 8px; margin: 0 0 28px; }
.filter {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 7px 15px;
  border-radius: 999px;
  border: 1px solid var(--rule-strong);
  background: transparent; color: var(--ink-2);
  font: 500 .9rem var(--font-sans);
  cursor: pointer;
}
.filter:hover { border-color: var(--ink-2); color: var(--ink); }
.filter[aria-pressed="true"] { background: var(--ink); color: var(--bg); border-color: var(--ink); }

.callout {
  margin-top: 48px;
  padding: 22px 24px;
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  background: var(--surface);
  display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 16px 24px; align-items: center;
}
.callout h2 { font-size: 1.3rem; margin: 0 0 .25em; }
.callout p { margin: 0; color: var(--ink-2); }
.callout-actions { display: flex; flex-wrap: wrap; gap: 10px; }
@media (max-width: 760px) { .callout { grid-template-columns: minmax(0, 1fr); } }

/* ---------- Prose (articles, abstracts) ---------- */
.prose {
  font-family: var(--font-serif);
  font-size: 1.19rem;
  line-height: 1.68;
  color: var(--ink);
  max-width: 40rem;
}
.prose h2 { font-size: 1.6rem; margin: 1.7em 0 .55em; }
.prose h3 { font-size: 1.3rem; margin: 1.5em 0 .5em; }
.prose > :first-child { margin-top: 0; }
.prose p, .prose ul, .prose ol { margin: 0 0 1.05em; }
.prose ul, .prose ol { padding-left: 1.3em; }
.prose li { margin: .35em 0; }
.prose blockquote { margin: 1.4em 0; padding: .1em 0 .1em 1.1em; border-left: 3px solid var(--accent); color: var(--ink-2); }
.prose code { background: var(--bg-elev); border: 1px solid var(--rule); border-radius: 4px; padding: .08em .35em; }
.prose pre { background: var(--bg-elev); border: 1px solid var(--rule); border-radius: 8px; padding: 14px 16px; overflow-x: auto; font-size: .9rem; line-height: 1.5; }
.prose pre code { background: none; border: 0; padding: 0; }
.prose img { border-radius: 6px; margin: 1.4em auto; }
.prose table { border-collapse: collapse; width: 100%; font-family: var(--font-sans); font-size: .95rem; margin: 1.4em 0; }
.prose th, .prose td { text-align: left; padding: 8px 10px; border-bottom: 1px solid var(--rule); }
.math-display { overflow-x: auto; overflow-y: hidden; margin: 1.1em 0; padding: .1em 0; }
.prose .katex { font-size: 1.04em; }

/* ---------- About ---------- */
.about-grid { display: grid; grid-template-columns: minmax(0, 1fr) 300px; gap: 64px; }
.about-aside { align-self: start; position: sticky; top: 88px; }
.side-card { border: 1px solid var(--rule); border-radius: var(--radius); background: var(--surface); padding: 22px; margin-bottom: 20px; }
.side-card h2 { font: 600 .74rem/1.4 var(--font-mono); letter-spacing: .08em; text-transform: uppercase; color: var(--muted); margin: 0 0 12px; }
.side-card ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 12px; }
.side-card li strong { display: block; font-weight: 600; }
.side-card li span { color: var(--muted); font-size: .92rem; }
.side-card li.placeholder { color: var(--muted); font-style: italic; }
.side-card p { margin: 0 0 .6em; color: var(--ink-2); font-size: .96rem; }
@media (max-width: 900px) {
  .about-grid { grid-template-columns: minmax(0, 1fr); gap: 32px; }
  .about-aside { position: static; }
}

/* ---------- Event page ---------- */
.event-layout { display: grid; grid-template-columns: minmax(0, 1fr) 320px; gap: 64px; padding: 40px 0 80px; }
.event-heading { font-size: clamp(2rem, 4.2vw, 3rem); letter-spacing: -.02em; margin: .2em 0 .35em; }
.event-byline { font-size: 1.12rem; color: var(--ink-2); margin: 0 0 32px; }
.event-byline strong { color: var(--ink); font-weight: 600; }
.sub-heading {
  font: 600 .76rem/1.4 var(--font-mono); letter-spacing: .08em; text-transform: uppercase;
  color: var(--muted); margin: 40px 0 14px;
}
.sub-heading:first-child { margin-top: 0; }
.event-aside {
  align-self: start; position: sticky; top: 88px;
  border: 1px solid var(--rule); border-radius: var(--radius); background: var(--surface);
  padding: 22px;
}
.facts { margin: 0; display: grid; gap: 16px; }
.facts dt { font: 600 .7rem/1.4 var(--font-mono); letter-spacing: .08em; text-transform: uppercase; color: var(--muted); }
.facts dd { margin: 3px 0 0; color: var(--ink); }
.aside-actions { display: grid; gap: 10px; margin-top: 22px; padding-top: 20px; border-top: 1px solid var(--rule); }
.materials-empty { color: var(--muted); margin: 0; }
@media (max-width: 900px) {
  .event-layout { grid-template-columns: minmax(0, 1fr); gap: 32px; padding-top: 24px; }
  .event-aside { position: static; }
}

/* ---------- Resources ---------- */
.res-section { margin: 0 0 56px; }
.res-section > h2 { font-size: clamp(1.5rem, 2.6vw, 1.9rem); margin-bottom: .6em; }
.res-list { list-style: none; margin: 0; padding: 0; border-top: 1px solid var(--rule); }
.res-item { display: grid; grid-template-columns: 110px minmax(0, 1fr); gap: 20px; padding: 18px 0; border-bottom: 1px solid var(--rule); }
.res-type { font: 600 .7rem/1.4 var(--font-mono); letter-spacing: .08em; text-transform: uppercase; color: var(--muted); padding-top: 6px; }
.res-title { font-size: 1.22rem; line-height: 1.3; margin: 0; }
.res-title a { color: var(--ink); text-decoration: none; }
.res-title a:hover { color: var(--accent); text-decoration: underline; }
.res-meta { color: var(--muted); font-size: .92rem; margin: .3em 0 0; }
.res-desc { color: var(--ink-2); font-size: .97rem; margin: .35em 0 0; }
.status {
  display: inline-block; vertical-align: middle; margin-left: 8px;
  padding: 2px 8px; border-radius: 999px;
  font: 600 .64rem/1.5 var(--font-mono); letter-spacing: .07em; text-transform: uppercase;
  color: var(--t-methods); background: var(--t-methods-bg);
}
.talks-table { width: 100%; border-collapse: collapse; }
.talks-table th { text-align: left; font: 600 .7rem/1.4 var(--font-mono); letter-spacing: .08em; text-transform: uppercase; color: var(--muted); padding: 0 12px 10px 0; border-bottom: 1px solid var(--rule); }
.talks-table td { padding: 14px 12px 14px 0; border-bottom: 1px solid var(--rule); vertical-align: top; }
@media (max-width: 600px) {
  .res-item { grid-template-columns: minmax(0, 1fr); gap: 4px; }
}

/* ---------- Subscribe page ---------- */
.sub-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 20px; }
.sub-card { display: flex; flex-direction: column; padding: 26px; border: 1px solid var(--rule); border-radius: var(--radius); background: var(--surface); }
.sub-card h2 { font-size: 1.5rem; margin: .4em 0 .4em; }
.sub-card p { color: var(--ink-2); }
.sub-card .btn { align-self: flex-start; margin-top: auto; }
.sub-kicker { font: 600 .7rem/1.4 var(--font-mono); letter-spacing: .08em; text-transform: uppercase; color: var(--accent); }
.addr {
  display: flex; align-items: center; justify-content: space-between; gap: 10px;
  background: var(--bg-elev); border: 1px solid var(--rule); border-radius: 8px;
  padding: 8px 8px 8px 12px; margin: 0 0 18px;
}
.addr code { font-size: .86rem; overflow-wrap: anywhere; color: var(--ink); }
.notice { margin: 16px 0 0; padding: 12px 16px; border-radius: 8px; background: var(--accent-soft); color: var(--ink); font-size: .94rem; }
.more-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 48px; margin-top: 56px; }
.more-grid h2 { font-size: 1.45rem; }
.more-grid p, .more-grid li { color: var(--ink-2); }
.more-grid ul { padding-left: 1.1em; margin: 0; }
.more-grid li { margin-bottom: .8em; }
@media (max-width: 760px) {
  .sub-grid, .more-grid { grid-template-columns: minmax(0, 1fr); }
  .more-grid { gap: 24px; }
}

/* ---------- Blog post ---------- */
.post-head { padding: 48px 0 8px; max-width: 46rem; }
.post-head h1 { font-size: clamp(2.1rem, 4.6vw, 3.2rem); letter-spacing: -.02em; margin: .35em 0 .35em; }
.post-lede { font-size: 1.2rem; color: var(--ink-2); margin: 0; }
.post-body { padding: 24px 0 72px; }
.post-foot { margin-top: 48px; padding-top: 20px; border-top: 1px solid var(--rule); max-width: 40rem; }

/* ---------- Footer ---------- */
.site-footer { background: var(--bg-elev); border-top: 1px solid var(--rule); padding: 48px 0 28px; font-size: .93rem; color: var(--muted); }
.footer-grid { display: grid; grid-template-columns: minmax(0, 2fr) minmax(0, 1fr) minmax(0, 1fr); gap: 32px; }
.footer-grid .brand { margin-bottom: 14px; }
.footer-grid p { max-width: 30em; }
.footer-grid h2 { font: 600 .72rem/1.4 var(--font-mono); letter-spacing: .08em; text-transform: uppercase; color: var(--ink-2); margin: 4px 0 14px; }
.footer-grid ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 8px; }
.footer-grid a { color: var(--ink-2); text-decoration: none; }
.footer-grid a:hover { color: var(--accent); }
.footer-bottom { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 8px 24px; margin-top: 40px; padding-top: 18px; border-top: 1px solid var(--rule); font-size: .85rem; }
@media (max-width: 760px) {
  .footer-grid { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); }
  .footer-about { grid-column: 1 / -1; }
}

@media (max-width: 600px) {
  .container { padding-inline: 16px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { transition: none !important; }
}

.countdown:not(:empty)::before { content: "· "; }
.nowrap { white-space: nowrap; }