/* Systems Over Signals: launch stylesheet */

@font-face { font-family: "Newsreader"; src: url("/assets/fonts/newsreader-latin-normal.woff2") format("woff2"); font-weight: 200 800; font-style: normal; font-display: swap; }
@font-face { font-family: "Newsreader"; src: url("/assets/fonts/newsreader-latin-italic.woff2") format("woff2"); font-weight: 200 800; font-style: italic; font-display: swap; }
@font-face { font-family: "IBM Plex Sans"; src: url("/assets/fonts/plex-sans-400.woff2") format("woff2"); font-weight: 400; font-style: normal; font-display: swap; }
@font-face { font-family: "IBM Plex Sans"; src: url("/assets/fonts/plex-sans-400-italic.woff2") format("woff2"); font-weight: 400; font-style: italic; font-display: swap; }
@font-face { font-family: "IBM Plex Sans"; src: url("/assets/fonts/plex-sans-500.woff2") format("woff2"); font-weight: 500; font-style: normal; font-display: swap; }
@font-face { font-family: "IBM Plex Sans"; src: url("/assets/fonts/plex-sans-600.woff2") format("woff2"); font-weight: 600; font-style: normal; font-display: swap; }
@font-face { font-family: "IBM Plex Sans Condensed"; src: url("/assets/fonts/plex-sans-condensed-700.woff2") format("woff2"); font-weight: 700; font-style: normal; font-display: swap; }
@font-face { font-family: "IBM Plex Mono"; src: url("/assets/fonts/plex-mono-400.woff2") format("woff2"); font-weight: 400; font-style: normal; font-display: swap; }
@font-face { font-family: "IBM Plex Mono"; src: url("/assets/fonts/plex-mono-500.woff2") format("woff2"); font-weight: 500; font-style: normal; font-display: swap; }

:root {
  --paper: #F9F7F0;
  --paper-2: #F2EFE5;
  --ink: #1B2626;
  --ink-2: #43504E;
  --ink-3: #5E6A68;
  --teal: #2A4847;
  --teal-deep: #213A39;
  --on-teal: #F7F5EC;
  --on-teal-2: #C9D6D2;
  --rule: #DAD5C6;
  --rule-strong: #B7B09E;
  --signal: #A6582A;
  --serif: "Newsreader", Georgia, "Times New Roman", serif;
  --sans: "IBM Plex Sans", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace;
  --wrap: 1120px;
  --gutter: clamp(16px, 4vw, 40px);
  color-scheme: light;
}

*, *::before, *::after { box-sizing: border-box; }
[hidden] { display: none !important; }
html { -webkit-text-size-adjust: 100%; text-size-adjust: 100%; scroll-padding-top: 96px; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font: 400 1.0625rem/1.65 var(--sans);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
img, svg { display: block; max-width: 100%; }
h1, h2, h3 { font-family: var(--serif); font-weight: 500; color: var(--ink); text-wrap: balance; }
p { margin: 0 0 1em; text-wrap: pretty; }
a { color: var(--teal); text-decoration-thickness: 1px; text-underline-offset: 0.2em; }
a:hover { color: var(--ink); }
:focus-visible { outline: 2px solid var(--signal); outline-offset: 3px; border-radius: 2px; }

.wrap { max-width: var(--wrap); margin: 0 auto; padding: 0 var(--gutter); }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0; }
.skip { position: absolute; left: 16px; top: -48px; background: var(--teal); color: var(--on-teal); padding: 8px 14px; z-index: 50; }
.skip:focus { top: 12px; }

.eyebrow {
  font-family: var(--mono);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-3);
  margin: 0;
}
.eyebrow .sep { color: var(--signal); padding: 0 0.6em; }
.meta { font-family: var(--mono); font-size: 0.78rem; letter-spacing: 0.06em; text-transform: uppercase; color: var(--ink-3); margin: 0; }
.meta .dot { padding: 0 0.45em; color: var(--rule-strong); }

.text-link { font-weight: 500; text-decoration: none; border-bottom: 1px solid currentColor; padding-bottom: 1px; }
.text-link:hover { color: var(--ink); }
.arrow { display: inline-block; margin-left: 0.25em; transition: transform 160ms ease; }
a:hover .arrow { transform: translateX(3px); }
.ext::after { content: "\2197"; font-family: var(--sans); margin-left: 0.3em; font-size: 0.9em; }

/* Header */
.site-header { border-bottom: 1px solid var(--rule); }
.site-header .wrap { display: flex; align-items: center; justify-content: space-between; gap: 12px 24px; min-height: 72px; flex-wrap: wrap; }
.brand { display: inline-flex; align-items: center; gap: 12px; text-decoration: none; color: var(--ink); font-family: var(--serif); font-size: 1.3rem; font-weight: 500; letter-spacing: -0.01em; }
.brand img { height: 36px; width: auto; }
.brand:hover { color: var(--ink); }
.nav { display: flex; gap: clamp(18px, 3vw, 32px); }
.nav a { color: var(--ink-2); text-decoration: none; font-size: 0.97rem; padding: 6px 0; border-bottom: 1.5px solid transparent; }
.nav a:hover { color: var(--ink); border-bottom-color: var(--rule-strong); }
.nav a[aria-current="page"] { color: var(--ink); border-bottom-color: var(--teal); }

/* Hero */
.hero { padding: clamp(52px, 9vw, 116px) 0 clamp(44px, 6vw, 76px); }
.hero h1 { font-weight: 400; font-size: clamp(2.6rem, 6.4vw, 5rem); line-height: 1.02; letter-spacing: -0.022em; max-width: 15ch; margin: 0.55em 0 0.5em; }
.hero .lede p { font-size: clamp(1.125rem, 1.55vw, 1.28rem); line-height: 1.62; color: var(--ink-2); max-width: 60ch; }
.hero-foot { display: flex; flex-wrap: wrap; align-items: baseline; justify-content: space-between; gap: 14px 32px; max-width: 60ch; margin-top: 30px; padding-top: 18px; border-top: 1px solid var(--rule); }
.hero-foot .byline { font-family: var(--mono); font-size: 0.8rem; letter-spacing: 0.02em; color: var(--ink-3); margin: 0; }

/* Sections */
.section { padding: clamp(48px, 7vw, 92px) 0; }
.section-head { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.3fr); gap: 12px 48px; align-items: end; border-top: 2px solid var(--ink); padding-top: 18px; margin-bottom: clamp(28px, 4vw, 44px); }
.section-head h2 { font-size: clamp(1.75rem, 3vw, 2.3rem); margin: 0; letter-spacing: -0.012em; line-height: 1.1; }
.section-head p { margin: 0; color: var(--ink-2); max-width: 56ch; }
.section-foot { margin-top: clamp(28px, 4vw, 40px); }

/* Cards */
.cards { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: clamp(32px, 4vw, 48px) clamp(32px, 5vw, 64px); list-style: none; margin: 0; padding: 0; }
.card { border-top: 1px solid var(--rule); padding-top: 20px; display: flex; flex-direction: column; }
.card h3 { font-size: clamp(1.35rem, 2vw, 1.6rem); line-height: 1.18; margin: 0.5em 0 0.55em; letter-spacing: -0.008em; }
.card h3 a { color: var(--ink); text-decoration: none; }
.card h3 a:hover { text-decoration: underline; text-decoration-thickness: 1px; }
.card p.deck { color: var(--ink-2); font-size: 1rem; line-height: 1.62; }
.card .read { margin-top: auto; font-size: 0.95rem; }

/* Teal panel */
.panel { background: var(--teal); color: var(--on-teal); background-image: linear-gradient(to right, rgba(247, 245, 236, 0.045) 1px, transparent 1px); background-size: calc(100% / 12) 100%; }
.panel .wrap { padding-top: clamp(52px, 7vw, 92px); padding-bottom: clamp(52px, 7vw, 92px); display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.35fr); gap: 32px clamp(32px, 6vw, 88px); }
.panel .eyebrow { color: var(--on-teal-2); }
.panel h2 { color: var(--on-teal); font-size: clamp(1.9rem, 3.4vw, 2.7rem); line-height: 1.08; margin: 0.45em 0 0.5em; letter-spacing: -0.015em; }
.panel p { color: var(--on-teal-2); font-size: 1.06rem; max-width: 46ch; }
.path-links { list-style: none; margin: 0; padding: 0; border-bottom: 1px solid rgba(247, 245, 236, 0.22); align-self: center; }
.path-links a { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 6px 24px; align-items: center; padding: 26px 0; border-top: 1px solid rgba(247, 245, 236, 0.22); color: var(--on-teal); text-decoration: none; }
.path-links .meta { color: var(--on-teal-2); grid-column: 1; }
.path-links .q { font-family: var(--serif); font-size: clamp(1.35rem, 2.3vw, 1.75rem); line-height: 1.2; grid-column: 1; }
.path-links .go { grid-column: 2; grid-row: 1 / span 2; font-size: 1.4rem; transition: transform 160ms ease; }
.path-links a:hover .q { text-decoration: underline; text-decoration-thickness: 1px; text-underline-offset: 0.18em; }
.path-links a:hover .go { transform: translateX(4px); }

/* Colophon trio */
.trio-band { background: var(--paper-2); border-top: 1px solid var(--rule); }
.trio { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 40px clamp(32px, 4vw, 56px); padding-top: clamp(48px, 6vw, 80px); padding-bottom: clamp(48px, 6vw, 80px); }
.trio h2 { font-size: 1.4rem; line-height: 1.2; margin: 0.6em 0 0.6em; }
.trio p { color: var(--ink-2); font-size: 1rem; }

/* Page head */
.page-head { padding: clamp(52px, 8vw, 100px) 0 clamp(32px, 4vw, 48px); }
.page-head h1 { font-weight: 400; font-size: clamp(2.8rem, 6vw, 4.4rem); line-height: 1.02; letter-spacing: -0.022em; margin: 0.4em 0 0.45em; }
.page-head .intro p { color: var(--ink-2); font-size: clamp(1.08rem, 1.4vw, 1.2rem); max-width: 64ch; }

/* Controls */
.controls { background: rgba(249, 247, 240, 0.95); border-top: 1px solid var(--rule); border-bottom: 1px solid var(--rule); padding: 14px 0; z-index: 10; }
.controls .wrap { display: flex; flex-wrap: wrap; align-items: center; gap: 12px 20px; }
.search { flex: 0 1 320px; }
.search input { width: 100%; font: 400 1rem var(--sans); color: var(--ink); padding: 10px 12px; border: 1px solid var(--rule-strong); border-radius: 3px; background: #FFFDF8; }
.search input::placeholder { color: var(--ink-3); }
.filters { display: flex; flex-wrap: wrap; gap: 8px; }
.filters button { font: 500 0.88rem var(--sans); color: var(--ink-2); background: transparent; border: 1px solid var(--rule-strong); border-radius: 999px; padding: 7px 13px; cursor: pointer; white-space: nowrap; }
.filters button:hover { border-color: var(--teal); color: var(--ink); }
.filters button[aria-pressed="true"] { background: var(--teal); border-color: var(--teal); color: var(--on-teal); }
.jump { margin-left: auto; font-size: 0.92rem; }

/* Entries */
.results-bar { display: flex; justify-content: space-between; align-items: baseline; gap: 16px; margin: clamp(32px, 4vw, 48px) 0 0; padding-bottom: 12px; }
.entries { list-style: none; margin: 0; padding: 0; border-bottom: 1px solid var(--rule); }
.entry { display: grid; grid-template-columns: 170px minmax(0, 1fr); gap: 8px clamp(24px, 4vw, 56px); padding: 30px 0; border-top: 1px solid var(--rule); }
.entry-meta { display: flex; flex-direction: column; gap: 4px; font-family: var(--mono); font-size: 0.78rem; letter-spacing: 0.05em; text-transform: uppercase; color: var(--ink-3); padding-top: 6px; }
.entry-meta .num { color: var(--signal); font-weight: 500; }
.topic { font-family: var(--mono); font-size: 0.74rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--teal); margin: 0; display: inline-flex; align-items: center; gap: 8px; }
.topic::before { content: ""; width: 7px; height: 7px; background: var(--teal); display: inline-block; }
.entry h3 { font-size: clamp(1.35rem, 2.1vw, 1.65rem); line-height: 1.2; margin: 0.35em 0 0.5em; letter-spacing: -0.008em; max-width: 34ch; }
.entry h3 a { color: var(--ink); text-decoration: none; }
.entry h3 a:hover { text-decoration: underline; text-decoration-thickness: 1px; }
.entry p { color: var(--ink-2); max-width: 68ch; }
.entry .read { font-size: 0.95rem; margin: 0; }
.empty { padding: 40px 0; color: var(--ink-2); border-top: 1px solid var(--rule); }

/* Reading paths */
.paths-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 56px clamp(32px, 5vw, 72px); }
.path { border-top: 2px solid var(--teal); padding-top: 20px; }
.path h3 { font-size: clamp(1.6rem, 2.6vw, 2rem); line-height: 1.12; margin: 0.45em 0 0.55em; letter-spacing: -0.012em; }
.path > p { color: var(--ink-2); }
.steps { list-style: none; counter-reset: step; margin: 28px 0 0; padding: 0; }
.steps li { counter-increment: step; display: grid; grid-template-columns: 36px minmax(0, 1fr); gap: 0 12px; padding: 18px 0; border-top: 1px solid var(--rule); }
.steps li::before { content: counter(step, decimal-leading-zero); font-family: var(--mono); font-size: 0.8rem; color: var(--signal); font-weight: 500; padding-top: 5px; }
.steps h4 { font-family: var(--serif); font-weight: 500; font-size: 1.18rem; line-height: 1.3; margin: 0 0 0.35em; }
.steps h4 a { color: var(--ink); text-decoration: none; }
.steps h4 a:hover { text-decoration: underline; text-decoration-thickness: 1px; }
.steps p { color: var(--ink-2); font-size: 0.98rem; margin: 0; }
.closing { font-family: var(--serif); font-style: italic; font-size: 1.2rem; line-height: 1.45; color: var(--ink); border-left: 2px solid var(--signal); padding-left: 18px; margin: 28px 0 0; }

/* About */
.about { display: grid; grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.6fr); gap: 32px clamp(32px, 7vw, 104px); padding: clamp(52px, 8vw, 104px) 0 clamp(56px, 8vw, 104px); }
.about-side h1 { font-weight: 400; font-size: clamp(2.5rem, 5vw, 3.6rem); line-height: 1.04; letter-spacing: -0.02em; margin: 0.45em 0 0.4em; }
.about-side .name { font-family: var(--serif); font-size: 1.35rem; color: var(--ink-2); margin: 0; }
.prose p { font-size: 1.15rem; line-height: 1.72; color: var(--ink); max-width: 62ch; }
.prose p:first-child { font-family: var(--serif); font-size: clamp(1.35rem, 2vw, 1.55rem); line-height: 1.5; }
.prose .aside { color: var(--ink-2); font-size: 1.04rem; }
.contact-block { margin-top: 40px; padding-top: 24px; border-top: 1px solid var(--rule); max-width: 62ch; }
.contact-block p { color: var(--ink-2); }
.contact-links { display: flex; gap: 28px; font-size: 1rem; margin-top: 4px; }

/* Contact */
.contact-title { max-width: 17ch; }
.contact-grid { display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr); gap: 40px clamp(32px, 6vw, 88px); align-items: start; padding-bottom: clamp(56px, 8vw, 104px); }
.mail-card { background: var(--teal); color: var(--on-teal); padding: clamp(28px, 4vw, 44px); background-image: linear-gradient(to right, rgba(247, 245, 236, 0.05) 1px, transparent 1px); background-size: 36px 100%; }
.mail-card .eyebrow { color: var(--on-teal-2); }
.mail-line { margin: 16px 0 22px; }
.mail-card a.mail { font-family: var(--serif); font-size: clamp(1.35rem, 2vw, 1.7rem); line-height: 1.25; color: var(--on-teal); text-decoration: none; border-bottom: 1px solid rgba(247, 245, 236, 0.5); overflow-wrap: anywhere; }
.mail-card a.mail:hover { border-bottom-color: var(--on-teal); }
.mail-card a.mail:focus-visible, .copy:focus-visible { outline-color: #E7B488; }
.mail-foot { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 12px 20px; margin: 0; padding-top: 18px; border-top: 1px solid rgba(247, 245, 236, 0.22); font-size: 0.95rem; color: var(--on-teal-2); }
.copy { font: 500 0.88rem var(--sans); color: var(--on-teal); background: transparent; border: 1px solid rgba(247, 245, 236, 0.45); border-radius: 999px; padding: 7px 14px; cursor: pointer; }
.copy:hover { border-color: var(--on-teal); }
.contact-notes > div { border-top: 1px solid var(--rule); padding: 22px 0 6px; }
.contact-notes > div:first-child { border-top: 2px solid var(--ink); padding-top: 18px; }
.contact-notes h2 { font-size: 1.3rem; line-height: 1.25; margin: 0 0 0.7em; }
.contact-notes p { color: var(--ink-2); max-width: 60ch; }
.reasons { list-style: none; margin: 0 0 1em; padding: 0; }
.reasons li { position: relative; padding: 0 0 12px 20px; color: var(--ink-2); max-width: 60ch; }
.reasons li::before { content: ""; position: absolute; left: 0; top: 0.62em; width: 7px; height: 7px; background: var(--teal); }
.contact-links { display: flex; flex-wrap: wrap; gap: 10px 28px; }

/* 404 */
.notfound { padding: clamp(72px, 12vw, 160px) 0; max-width: 40rem; }
.notfound h1 { font-weight: 400; font-size: clamp(2.2rem, 5vw, 3.4rem); line-height: 1.08; margin: 0.4em 0 0.5em; }
.notfound p { color: var(--ink-2); font-size: 1.1rem; }
.notfound .actions { display: flex; gap: 28px; margin-top: 28px; }

/* Footer */
.site-footer { border-top: 1px solid var(--rule); padding: 44px 0 52px; font-size: 0.94rem; color: var(--ink-2); }
.foot-top { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 24px 48px; }
.foot-brand { font-family: var(--serif); font-size: 1.15rem; color: var(--ink); margin: 0 0 6px; }
.foot-brand .muted { color: var(--ink-3); font-family: var(--sans); font-size: 0.9rem; }
.foot-explain { margin: 0; max-width: 44ch; }
.foot-nav { display: flex; flex-wrap: wrap; gap: 10px 24px; list-style: none; margin: 0; padding: 0; }
.foot-nav a { color: var(--ink-2); text-decoration: none; }
.foot-nav a:hover { color: var(--ink); text-decoration: underline; }
.foot-bottom { margin-top: 32px; padding-top: 18px; border-top: 1px solid var(--rule); display: flex; flex-wrap: wrap; justify-content: space-between; gap: 8px 32px; font-family: var(--mono); font-size: 0.76rem; letter-spacing: 0.03em; color: var(--ink-3); }
.foot-bottom p { margin: 0; }
.foot-bottom a { color: var(--ink-3); margin-left: 0.6em; }
.foot-bottom a:hover { color: var(--ink); }

/* Homepage: research areas */
.areas { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 8px 28px; margin: 30px 0 0; padding: 0; list-style: none; font-size: 0.95rem; line-height: 1.45; color: var(--ink-2); max-width: 980px; }
.areas .eyebrow { grid-column: 1 / -1; color: var(--teal); margin-bottom: 2px; border-top: 0; padding-top: 0; }
.areas li { border-top: 2px solid var(--teal); padding-top: 10px; }
@media (max-width: 899px) { .areas { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 420px) { .areas { grid-template-columns: minmax(0, 1fr); } .areas li { border-top-width: 1px; padding-top: 8px; } }

/* Homepage: project strip, echoing the map's drawing-paper look */
.project-band { padding: 0 0 clamp(48px, 7vw, 92px); }
.project-card { display: grid; gap: 12px; padding: clamp(24px, 4vw, 40px); border: 1px solid var(--rule-strong); text-decoration: none; color: var(--ink);
  background-color: #FFFDF8; background-image: linear-gradient(rgba(42,72,71,.06) 1px, transparent 1px), linear-gradient(90deg, rgba(42,72,71,.06) 1px, transparent 1px); background-size: 28px 28px;
  transition: border-color 160ms ease; }
.project-card:hover { border-color: var(--teal); color: var(--ink); }
.project-card .eyebrow { color: var(--teal); }
.project-card h2 { font-family: "IBM Plex Sans Condensed", var(--sans); font-weight: 700; color: var(--teal); font-size: clamp(1.8rem, 3.4vw, 2.5rem); line-height: 1.08; margin: 0; letter-spacing: -0.005em; }
.project-card p { margin: 0; color: var(--ink-2); max-width: 64ch; }
.project-card .layers { display: flex; flex-wrap: wrap; gap: 4px 8px; font-family: var(--mono); font-size: 0.74rem; letter-spacing: 0.04em; text-transform: uppercase; color: var(--ink-3); padding: 12px 0; border-top: 1px solid var(--rule); border-bottom: 1px solid var(--rule); margin: 6px 0 4px; }
.project-card .layers span[aria-hidden] { color: var(--rule-strong); }
.project-card .go { justify-self: start; color: var(--teal); }
.project-card:hover .go .arrow { transform: translateX(3px); }

/* For AI and research tools */
.doc { padding-bottom: clamp(56px, 8vw, 104px); }
.doc > section { max-width: 760px; }
.doc section { border-top: 1px solid var(--rule); padding: 22px 0 6px; }
.doc section:first-child { border-top: 2px solid var(--ink); }
.doc h2 { font-size: 1.3rem; line-height: 1.25; margin: 0 0 0.6em; }
.doc p, .doc li { color: var(--ink-2); }
.doc-list { margin: 0 0 1em; padding-left: 1.1em; }
.doc-list li { margin-bottom: 8px; }
.doc-essays { margin: 0 0 1.2em; }
.doc-essays summary { cursor: pointer; font-weight: 500; color: var(--teal); }
.doc-essays ol { margin: 12px 0 0; padding-left: 1.4em; }
.doc-essays li { margin-bottom: 8px; }
.doc-essays .meta { display: inline; font-size: 0.72rem; margin-left: 6px; }

/* Essay summary pages */
.read .sum-link { margin-left: 22px; }
.card .read .sum-link { margin-left: 18px; }
.sum-head .eyebrow a { color: var(--ink-3); text-decoration: none; }
.sum-head .eyebrow a:hover { color: var(--ink); text-decoration: underline; }
.sum-head .eyebrow .sep { padding: 0 0.6em; color: var(--signal); }
.sum-head h1 { font-size: clamp(2.2rem, 5vw, 3.6rem); line-height: 1.06; max-width: 22ch; }
.sum-meta { font-family: var(--mono); font-size: 0.8rem; letter-spacing: 0.04em; text-transform: uppercase; color: var(--ink-3); margin: 0 0 22px; }
.standfirst { font-family: var(--serif); font-size: clamp(1.3rem, 2.2vw, 1.6rem); line-height: 1.45; color: var(--ink); max-width: 46ch; margin: 0 0 22px; }
.sum-cta { margin: 0; font-size: 1.02rem; }
.sum-grid { display: grid; grid-template-columns: minmax(0, 1.75fr) minmax(0, 0.85fr); gap: 40px clamp(32px, 6vw, 80px); align-items: start; padding-bottom: clamp(56px, 8vw, 104px); }
.sum-body section { border-top: 1px solid var(--rule); padding: 24px 0 8px; }
.sum-body section:first-child { border-top: 2px solid var(--ink); }
.sum-body h2 { font-size: 1.35rem; line-height: 1.25; margin: 0 0 0.75em; }
.sum-body p { font-size: 1.08rem; line-height: 1.72; max-width: 66ch; }
.keypoints, .plain-list { list-style: none; margin: 0 0 1em; padding: 0; max-width: 66ch; }
.keypoints li, .plain-list li { position: relative; padding: 0 0 12px 22px; color: var(--ink-2); line-height: 1.6; }
.keypoints li::before { content: ""; position: absolute; left: 0; top: 0.6em; width: 8px; height: 8px; background: var(--teal); }
.plain-list li::before { content: ""; position: absolute; left: 2px; top: 0.72em; width: 8px; height: 1px; background: var(--ink-3); }
.note-line { font-size: 0.98rem !important; color: var(--ink-2); }
.sum-aside { display: grid; gap: 26px; border-top: 2px solid var(--teal); padding-top: 18px; }
.sum-aside p { margin: 6px 0 0; font-size: 0.97rem; color: var(--ink-2); }
.sum-aside a { text-decoration-thickness: 1px; }
.sum-note { background: var(--paper-2); padding: 14px 16px; border: 1px solid var(--rule); }
.rel-list { list-style: none; margin: 8px 0 0; padding: 0; }
.rel-list li { padding: 10px 0; border-top: 1px solid var(--rule); }
.rel-list li:first-child { border-top: 0; padding-top: 2px; }
.rel-list a { font-family: var(--serif); font-size: 1.08rem; line-height: 1.3; color: var(--ink); text-decoration: none; }
.rel-list a:hover { text-decoration: underline; }
.rel-list .meta { display: block; margin-top: 4px; font-size: 0.7rem; }
@media (max-width: 899px) { .sum-grid { grid-template-columns: minmax(0, 1fr); } }
@media (max-width: 480px) { .read .sum-link, .card .read .sum-link { margin-left: 0; display: inline-block; margin-top: 10px; } .read { display: flex; flex-wrap: wrap; column-gap: 18px; } }

/* Responsive */
@media (min-width: 900px) {
  .controls { position: sticky; top: 0; backdrop-filter: blur(6px); -webkit-backdrop-filter: blur(6px); }
}
@media (max-width: 899px) {
  .section-head, .panel .wrap, .about, .contact-grid { grid-template-columns: minmax(0, 1fr); }
  .trio { grid-template-columns: minmax(0, 1fr); }
  .paths-grid { grid-template-columns: minmax(0, 1fr); }
  .jump { margin-left: 0; }
}
@media (max-width: 720px) {
  .cards { grid-template-columns: minmax(0, 1fr); }
  .entry { grid-template-columns: minmax(0, 1fr); padding: 26px 0; }
  .entry-meta { flex-direction: row; flex-wrap: wrap; gap: 4px 14px; padding-top: 0; }
  .search { flex: 1 1 100%; }
  .filters { flex-wrap: nowrap; overflow-x: auto; margin: 0 calc(var(--gutter) * -1); padding: 2px var(--gutter); scrollbar-width: none; }
  .filters::-webkit-scrollbar { display: none; }
}
@media (max-width: 480px) {
  .site-header .wrap { padding-top: 14px; padding-bottom: 10px; }
  .nav { width: 100%; gap: 16px; }
  .nav a { font-size: 0.94rem; }
  .brand { font-size: 1.18rem; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { transition: none !important; scroll-behavior: auto !important; }
}
@media print {
  .site-header .nav, .controls, .skip { display: none; }
  body { background: #fff; }
}