@font-face{font-family:"Raleway";src:url("fonts/Raleway-Variable.woff2") format("woff2");font-weight:100 900;font-style:normal;font-display:swap;}
@font-face{font-family:"Raleway";src:url("fonts/Raleway-Italic-Variable.woff2") format("woff2");font-weight:700;font-style:italic;font-display:swap;}
@font-face{font-family:"Cinzel";src:url("fonts/Cinzel-Variable.woff2") format("woff2");font-weight:400 900;font-style:normal;font-display:swap;}

/* Layout: one 1200px column on a warm ground; cream cards with chevron headers carry the
   content, a brown takeaway band closes a section, the footer is the dark panel.
   Light is the default for every visitor; dark applies only when the visitor chooses it (data-theme="dark"). */
:root {
  /* palette — the twelve theme colors of the template */
  --brown: #451713; --dark: #311313; --ground: #f1e9d2; --cream: #fbf7ec;
  --gold: #d8ae3a; --gold-ink: #845d22; /* was #946928: 4.0:1 on the ground; #845d22 reads 4.9:1 */ --blue: #96bcdb; --sand: #dcd3bc;
  --red: #b53527; --deep-red: #80261d; --orange: #d66a34; --amber: #de853b;
  --red-ink: #982d22; --orange-ink: #a04c28; /* was #b3562c: 4.0:1 on the ground */ --amber-tint: #e9a46f; --red-tint: #ea8f82;
  --white: #ffffff;
  --logo: #cd3d2d; /* the red of the supplied logo files */

  /* roles — light master */
  --surface: var(--ground);
  --surface-card: var(--cream);
  --surface-chip: var(--ground);
  --ink: var(--brown);
  --ink-2: rgba(69, 23, 19, 0.78);
  --ink-muted: var(--gold-ink);
  --ink-title: var(--brown);
  --accent: var(--gold);
  --accent-ink: var(--gold-ink);
  --rule: var(--gold);
  --hairline: rgba(69, 23, 19, 0.3);
  --hairline-soft: rgba(69, 23, 19, 0.16);
  --border: var(--brown);
  --band: var(--brown); --band-label: var(--gold); --band-text: var(--cream);
  --btn: var(--brown); --btn-text: var(--cream);
  --link-underline: var(--gold);
  --focus: var(--red);
  --header-1: var(--brown); --header-1-text: var(--white); --header-1-ink: var(--brown);
  --header-2: var(--red);   --header-2-text: var(--white); --header-2-ink: var(--red);
  --header-3: var(--gold);  --header-3-text: var(--dark);  --header-3-ink: var(--gold-ink);
  --ramp4-1: var(--brown);   --ramp4-1-text: var(--white); --ramp4-1-ink: var(--brown);
  --ramp4-2: var(--red-ink); --ramp4-2-text: var(--white); --ramp4-2-ink: var(--red-ink);
  --ramp4-3: var(--orange);  --ramp4-3-text: var(--dark);  --ramp4-3-ink: var(--orange-ink);
  --ramp4-4: var(--gold);    --ramp4-4-text: var(--dark);  --ramp4-4-ink: var(--gold-ink);
  --key-1: var(--brown); --key-2: var(--red-ink); --key-3: var(--orange-ink); --key-4: var(--gold-ink);
  --tile-alpha: var(--red); --tile-alpha-text: var(--white);
  --tile-beta: var(--amber); --tile-beta-text: var(--dark);
  --tile-pet: var(--blue); --tile-pet-text: var(--dark);
  --tile-spect: var(--brown); --tile-spect-text: var(--white);
  --tile-stable: var(--cream); --tile-stable-text: var(--brown);
  --tile-outline: var(--brown);
  --panel: var(--dark); --panel-ink: var(--sand); --panel-heading: var(--gold);
  --art-slab: var(--brown); --art-block-a: var(--red); --art-block-b: var(--gold);
  --art-ch1: var(--brown); --art-ch2: var(--red); --art-ch3: var(--amber); --art-ch4: var(--gold); --art-ch5: var(--cream);
  --bar: var(--brown); --bar-text: var(--cream);
  --row-1: var(--brown); --row-1-text: var(--white); --row-2: var(--deep-red); --row-2-text: var(--white);
  --row-3: var(--red); --row-3-text: var(--white); --row-4: var(--amber); --row-4-text: var(--dark); --row-5: var(--gold); --row-5-text: var(--dark);
  --six-1: var(--brown); --six-1-text: var(--white); --six-1-ink: var(--brown);
  --six-2: var(--deep-red); --six-2-text: var(--white); --six-2-ink: var(--deep-red);
  --six-3: var(--red); --six-3-text: var(--white); --six-3-ink: var(--red);
  --six-4: var(--orange); --six-4-text: var(--dark); --six-4-ink: var(--orange-ink);
  --six-5: var(--amber); --six-5-text: var(--dark); --six-5-ink: var(--orange-ink);
  --six-6: var(--gold); --six-6-text: var(--dark); --six-6-ink: var(--gold-ink);

  --banner-bg: #2a0f0f; --banner-ink: #ffffff; --banner-sub: #dcd3bc; --banner-kicker: #d8ae3a;
  --font-display: "Trajan Pro 3", "Cinzel", "Times New Roman", serif;
  --font-sans: "Raleway", "Helvetica Neue", Arial, sans-serif;

  --radius-sm: 10px; --radius-md: 16px; --radius-lg: 18px;
  --gutter: clamp(16px, 4vw, 44px);
  --measure: 66ch;
  color-scheme: light;
}
:root[data-theme="dark"] {
  --surface: var(--dark); --surface-card: var(--brown); --surface-chip: var(--dark);
  --ink: var(--cream); --ink-2: rgba(251, 247, 236, 0.8); --ink-muted: var(--sand); --ink-title: var(--white);
  --accent: var(--blue); --accent-ink: var(--blue); --rule: var(--gold);
  --hairline: rgba(251, 247, 236, 0.3); --hairline-soft: rgba(251, 247, 236, 0.16); --border: var(--cream);
  --band: var(--blue); --band-label: var(--brown); --band-text: var(--dark);
  --btn: var(--blue); --btn-text: var(--dark); --link-underline: var(--blue); --focus: var(--gold);
  --header-1: var(--blue);  --header-1-text: var(--dark); --header-1-ink: var(--blue);
  --header-2: var(--gold);  --header-2-text: var(--dark); --header-2-ink: var(--gold);
  --header-3: var(--amber); --header-3-text: var(--dark); --header-3-ink: var(--amber);
  --ramp4-1: var(--blue);   --ramp4-1-text: var(--dark); --ramp4-1-ink: var(--blue);
  --ramp4-2: var(--gold);   --ramp4-2-text: var(--dark); --ramp4-2-ink: var(--gold);
  --ramp4-3: var(--amber);  --ramp4-3-text: var(--dark); --ramp4-3-ink: var(--amber);
  --ramp4-4: var(--orange); --ramp4-4-text: var(--dark); --ramp4-4-ink: var(--amber-tint);
  --key-1: var(--blue); --key-2: var(--gold); --key-3: var(--amber); --key-4: var(--amber-tint);
  --tile-stable: var(--brown); --tile-stable-text: var(--cream); --tile-outline: var(--cream);
  --panel: var(--dark); --panel-ink: var(--sand); --panel-heading: var(--gold);
  --art-slab: var(--blue); --art-block-a: var(--red); --art-block-b: var(--gold);
  --art-ch1: var(--blue); --art-ch2: var(--gold); --art-ch3: var(--amber); --art-ch4: var(--orange); --art-ch5: var(--brown);
  --banner-bg: #f1e9d2; --banner-ink: #451713; --banner-sub: #7a4a3a; --banner-kicker: #845d22;
  --logo: #e45d4e; /* lighter brand red: 4.8:1 on the dark ground, where the print red reads 3.5:1 */
  --bar: var(--blue); --bar-text: var(--dark);
  --row-1: var(--blue); --row-1-text: var(--dark); --row-2: var(--gold); --row-2-text: var(--dark);
    --row-3: var(--amber); --row-3-text: var(--dark); --row-4: var(--orange); --row-4-text: var(--dark); --row-5: var(--red); --row-5-text: var(--white);
  --six-1: var(--blue); --six-1-text: var(--dark); --six-1-ink: var(--blue);
  --six-2: var(--gold); --six-2-text: var(--dark); --six-2-ink: var(--gold);
  --six-3: var(--amber); --six-3-text: var(--dark); --six-3-ink: var(--amber);
  --six-4: var(--orange); --six-4-text: var(--dark); --six-4-ink: var(--amber-tint);
  --six-5: var(--red); --six-5-text: var(--white); --six-5-ink: var(--red-tint);
  --six-6: var(--red-tint); --six-6-text: var(--dark); --six-6-ink: var(--red-tint);
  color-scheme: dark;
}

/* ---------- reset and base ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } *, *::before, *::after { transition: none !important; animation: none !important; } }
body {
  margin: 0; background: var(--surface); color: var(--ink);
  font-family: var(--font-sans); font-size: 1.0625rem; line-height: 1.55;
  font-weight: 400; -webkit-font-smoothing: antialiased; overflow-x: hidden;
}
[hidden] { display: none !important; }
[id] { scroll-margin-top: 96px; }
img, svg { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: underline; text-decoration-color: var(--link-underline); text-decoration-thickness: 1.5px; text-underline-offset: 0.18em; }
a:hover { text-decoration-thickness: 2.5px; }
:focus-visible { outline: 2px solid var(--focus); outline-offset: 3px; }
p { margin: 0 0 1em; max-width: var(--measure); }
p:last-child { margin-bottom: 0; }
ul, ol { margin: 0 0 1em; padding-left: 1.2em; max-width: var(--measure); }
li + li { margin-top: 0.35em; }
strong { font-weight: 700; }
sup { font-size: 0.7em; line-height: 0; vertical-align: baseline; position: relative; top: -0.45em; }
table { border-collapse: collapse; width: 100%; font-variant-numeric: tabular-nums; }
.wrap { width: 100%; max-width: 1200px; margin-inline: auto; padding-inline: var(--gutter); }
.skip { position: absolute; left: var(--gutter); top: -3rem; background: var(--band); color: var(--band-text); padding: 0.5rem 0.9rem; border-radius: var(--radius-sm); z-index: 100; text-decoration: none; }
.skip:focus { top: 0.5rem; }

/* ---------- type ---------- */
h1, h2, h3, h4 { font-family: var(--font-display); color: var(--ink-title); margin: 0; text-wrap: balance; font-weight: 700; }
h1 { font-size: clamp(2rem, 4.6vw, 3.4rem); line-height: 1.02; letter-spacing: 0.005em; }
h2 { font-size: clamp(1.5rem, 2.8vw, 2.1rem); line-height: 1.1; letter-spacing: 0.01em; }
h3 { font-size: 1.05rem; line-height: 1.25; letter-spacing: 0.02em; }
.lead { font-size: clamp(1.1rem, 1.6vw, 1.3rem); line-height: 1.45; max-width: 60ch; color: var(--ink); }
.eyebrow { font-family: var(--font-sans); font-size: 0.72rem; font-weight: 700; letter-spacing: 0.12em; text-transform: uppercase; color: var(--ink-muted); margin: 0 0 0.6rem; }
.muted { color: var(--ink-2); }
.small { font-size: 0.9rem; }
.source { font-size: 0.78rem; color: var(--ink-muted); line-height: 1.4; }
.source a { text-decoration-color: currentColor; }
.caps { font-family: var(--font-display); text-transform: uppercase; letter-spacing: 0.04em; }

.source, .hero-meta, .tile-row-label, .form-note, .eyebrow, .quote cite { color: var(--ink-2); }
.card .source, .figure .source, .key .eyebrow { color: var(--ink-muted); }

/* ---------- header ---------- */
.site-header { position: sticky; top: env(safe-area-inset-top, 0px); z-index: 50; background: var(--surface); border-bottom: 1px solid var(--hairline); }
.header-row { display: flex; align-items: center; justify-content: space-between; gap: 1.5rem; min-height: 76px; }
.brand { display: inline-flex; align-items: center; text-decoration: none; color: var(--logo); }
.wordmark { width: auto; height: 34px; display: block; transition: height 0.35s ease, transform 0.35s ease, opacity 0.35s ease; transform-origin: left center; }
.header-row { transition: min-height 0.35s ease; }
.site-header.is-scrolled .header-row { min-height: 58px; }
.site-header.is-scrolled .wordmark { height: 26px; }
.site-header.is-scrolled { border-bottom-color: var(--hairline); }
.brand:hover .wordmark { transform: scale(1.04); }
.site-nav ul { list-style: none; margin: 0; padding: 0; display: flex; gap: clamp(0.8rem, 1.4vw, 1.4rem); max-width: none; }
.header-row .site-nav { margin-left: auto; flex: 0 1 auto; min-width: 0; }
.header-tools { flex: none; }
.site-nav li { margin: 0; }
.site-nav a { font-family: var(--font-display); font-size: 0.78rem; font-weight: 700; letter-spacing: 0.06em; text-transform: uppercase; text-decoration: none; padding: 0.4rem 0; border-bottom: 2px solid transparent; white-space: nowrap; color: var(--ink); }
.site-nav a:hover, .site-nav a.is-active { border-bottom-color: var(--accent); }
.menu-toggle { display: none; background: none; border: 1px solid var(--border); border-radius: var(--radius-sm); color: var(--ink); font: inherit; font-family: var(--font-display); font-size: 0.8rem; font-weight: 700; letter-spacing: 0.06em; text-transform: uppercase; padding: 0.45rem 0.7rem; align-items: center; gap: 0.6rem; cursor: pointer; }
.menu-toggle-bars { display: inline-flex; flex-direction: column; gap: 3px; }
.header-tools { display: flex; align-items: center; gap: 0.6rem; }
.theme-toggle { background: none; border: 1px solid var(--border); border-radius: var(--radius-sm); color: var(--ink); font: inherit; font-family: var(--font-display); font-size: 0.72rem; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase; padding: 0.45rem 0.7rem; cursor: pointer; line-height: 1; white-space: nowrap; }
.theme-toggle:hover { background: var(--surface-card); }
.menu-toggle-bars i { display: block; width: 16px; height: 2px; background: currentColor; }
@media (max-width: 1120px) {
  .menu-toggle { display: inline-flex; }
  .site-nav { display: none; width: 100%; order: 3; }
  .site-header.is-open .site-nav { display: block; }
  .header-row { flex-wrap: wrap; }
  .header-tools { margin-left: auto; }
  .site-nav ul { flex-direction: column; gap: 0; padding-block: 0.5rem 1rem; border-top: 1px solid var(--hairline-soft); }
  .site-nav a { display: block; padding: 0.7rem 0; border-bottom: 1px solid var(--hairline-soft); }
  .site-nav a.is-active { border-bottom-color: var(--accent); }
}

/* ---------- sections ---------- */
.site-main { display: block; }
.section { padding-block: clamp(2.6rem, 6vw, 4.6rem); }
.section + .section { border-top: 1px solid var(--hairline-soft); }
.section-head { display: grid; gap: 0.8rem; margin-bottom: clamp(1.4rem, 3vw, 2.2rem); max-width: 62ch; }
.section-head p { margin: 0; }
.two-col { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: clamp(1.5rem, 4vw, 3.5rem); align-items: start; }
.two-col > * { min-width: 0; }
.two-col.text-first { grid-template-columns: minmax(0, 5fr) minmax(0, 6fr); }
@media (max-width: 820px) { .two-col, .two-col.text-first { grid-template-columns: minmax(0, 1fr); } }
.page-hero { padding-block: clamp(2.4rem, 6vw, 4.2rem) clamp(1.8rem, 4vw, 3rem); display: grid; gap: 1rem; }
.page-hero .lead { margin-top: 0.4rem; }
.rule { border: 0; border-top: 3px solid var(--rule); width: 72px; margin: 1.1rem 0 0; }

.subnav { display: flex; flex-wrap: wrap; align-items: baseline; gap: 0.4rem 1.2rem; margin-top: 1.2rem; }
.subnav-label { font-size: 0.72rem; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; color: var(--ink-2); }
.subnav ul { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: 0.3rem 1.1rem; max-width: none; }
.subnav li { margin: 0; }
.subnav a { font-family: var(--font-display); font-size: 0.78rem; font-weight: 700; letter-spacing: 0.06em; text-transform: uppercase; text-decoration: none; border-bottom: 2px solid var(--accent); padding-bottom: 0.15rem; }
.subnav a:hover { border-bottom-width: 3px; }

/* ---------- banner (home) ---------- */
.banner { position: relative; isolation: isolate; color: var(--banner-ink); background: var(--banner-bg); overflow: hidden; min-height: clamp(440px, 62vh, 640px); display: flex; align-items: center; }
.banner-bg { position: absolute; inset: 0; z-index: -1; }
.banner-fallback, .banner-canvas { position: absolute; inset: 0; width: 100%; height: 100%; display: block; }
.motion-toggle { position: absolute; right: var(--gutter); bottom: 14px; z-index: 2; background: transparent; border: 1px solid var(--banner-sub); color: var(--banner-sub); border-radius: 999px; font-family: var(--font-display); font-size: 0.62rem; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; padding: 0.35rem 0.7rem; cursor: pointer; opacity: 0.7; line-height: 1; }
.motion-toggle:hover, .motion-toggle:focus-visible { opacity: 1; }
:root:not(.js) .motion-toggle { display: none; }
.banner-content { position: relative; padding-block: clamp(3rem, 8vw, 6rem); max-width: 1200px; }
.banner-kicker { font-family: var(--font-display); font-size: 0.78rem; font-weight: 700; letter-spacing: 0.22em; text-transform: uppercase; color: var(--banner-kicker); margin: 0 0 1.1rem; }
.banner-title { font-family: var(--font-display); font-weight: 700; font-size: clamp(2.2rem, 5.2vw, 4.2rem); line-height: 1.04; letter-spacing: 0.01em; color: var(--banner-ink); margin: 0; max-width: 22ch; text-wrap: balance; }
.banner-sub { font-size: clamp(1.05rem, 1.7vw, 1.3rem); line-height: 1.45; color: var(--banner-sub); max-width: 46ch; margin: 1.3rem 0 0; }
.banner-actions { display: flex; flex-wrap: wrap; gap: 0.8rem; margin-top: 1.9rem; }
.banner .btn-gold { background: #d8ae3a; border-color: #d8ae3a; color: #311313; }
.banner .btn-gold:hover { filter: brightness(1.06); }
.banner .btn-ghost { background: transparent; border-color: var(--banner-ink); color: var(--banner-ink); }
.banner .btn-ghost:hover { background: rgba(128, 96, 80, 0.15); }
:root[data-theme="dark"] .banner-fallback { display: none; }
:root[data-theme="dark"] .banner .btn-gold { background: var(--brown); border-color: var(--brown); color: var(--cream); }
.banner .btn:focus-visible { outline-color: #d8ae3a; }

.banner-sm { min-height: clamp(260px, 36vh, 380px); }
.banner-sm .banner-content { padding-block: clamp(2.2rem, 5vw, 3.6rem); }
.banner-title-sm { font-size: clamp(2rem, 4.2vw, 3.2rem); }
.banner .subnav { margin-top: 1.4rem; }
.banner .subnav-label { color: var(--banner-sub); }
.banner .subnav a { color: var(--banner-ink); border-bottom-color: var(--banner-kicker); }
.banner .subnav a.is-active { border-bottom-width: 3px; }
.banner .btn-row { margin-top: 1.6rem; }
.banner .btn-outline { color: var(--banner-ink); border-color: var(--banner-ink); }

/* ---------- scroll reveal (applied by script; everything is visible without it) ---------- */
.js .reveal { opacity: 0; transform: translateY(18px); transition: opacity 0.7s ease, transform 0.7s ease; }
.js .reveal.is-in { opacity: 1; transform: none; }
.js .reveal:nth-child(2) { transition-delay: 0.08s; } .js .reveal:nth-child(3) { transition-delay: 0.16s; } .js .reveal:nth-child(4) { transition-delay: 0.24s; }
@media (prefers-reduced-motion: reduce) { .js .reveal { opacity: 1; transform: none; transition: none; } }
.subnav a.is-active { border-bottom-width: 3px; }

/* ---------- platform graphic ---------- */
.platform-fig { background: var(--surface-card); border: 1px solid var(--border); border-radius: var(--radius-md); padding: clamp(0.6rem, 2vw, 1.4rem) clamp(0.6rem, 2vw, 1.4rem) 0.4rem; color: var(--ink); overflow: hidden; }
.platform-fig svg { width: 100%; height: auto; display: block; }
.pf-membrane { fill: none; stroke: var(--ink); stroke-width: 2; opacity: 0.55; }
.pf-antigen { fill: var(--surface); stroke: var(--ink); stroke-width: 2; }
.pf-antigen-head { fill: var(--ink); opacity: 0.85; }
.pf-ring { fill: none; stroke: var(--ink); stroke-width: 2.25; }
.pf-bead circle { fill: var(--surface-card); stroke: var(--ink); stroke-width: 2; }
.pf-bead-face circle { fill: var(--accent); stroke: var(--ink); stroke-width: 1.5; }
.pf-bind { stroke: var(--ink); stroke-width: 1.25; stroke-dasharray: 3 3; opacity: 0.7; }
.pf-linker { fill: none; stroke: var(--ink); stroke-width: 2.5; stroke-linecap: round; }
.pf-chelator { fill: none; stroke: var(--ink); stroke-width: 2.5; }
.pf-donor circle { fill: var(--ink); }
.pf-metal { fill: var(--accent); stroke: var(--ink); stroke-width: 1.5; }
.pf-metal-text { font-family: var(--font-display); font-size: 15px; font-weight: 700; fill: var(--dark); }
.pf-link { fill: none; stroke: var(--ink); stroke-width: 1.5; opacity: 0.8; }
.pf-link-dashed { stroke-dasharray: 5 4; }
.pf-pill-bg { fill: var(--surface); stroke: var(--hairline); stroke-width: 1; }
.pf-pill-bg-dashed { stroke: var(--ink); stroke-dasharray: 4 3; opacity: 0.9; }
.pf-pill-key { fill: var(--pk); }
.pf-pet { --pk: var(--tile-pet); --pk-text: var(--tile-pet-text); }
.pf-beta { --pk: var(--tile-beta); --pk-text: var(--tile-beta-text); }
.pf-alpha { --pk: var(--tile-alpha); --pk-text: var(--tile-alpha-text); }
.pf-pill-sym { font-family: var(--font-sans); font-size: 17px; font-weight: 700; fill: var(--pk-text); }
.pf-pill-title { font-family: var(--font-display); font-size: 14px; font-weight: 700; letter-spacing: 0.06em; text-transform: uppercase; fill: var(--ink); }
.pf-pill-sub { font-family: var(--font-sans); font-size: 13px; fill: var(--ink-2); }
.pf-label { font-family: var(--font-display); font-size: 12.5px; font-weight: 700; letter-spacing: 0.1em; fill: var(--ink-muted); }
.pf-cap { font-family: var(--font-sans); font-size: 13px; fill: var(--ink-2); }

/* ---------- buttons ---------- */
.btn { display: inline-flex; align-items: center; gap: 0.5rem; font-family: var(--font-display); font-size: 0.8rem; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase; text-decoration: none; padding: 0.8rem 1.25rem; border-radius: var(--radius-sm); border: 1px solid var(--btn); background: var(--btn); color: var(--btn-text); line-height: 1; cursor: pointer; }
.btn:hover { text-decoration: none; filter: brightness(1.08); }
.btn-outline { background: transparent; color: var(--ink); border-color: var(--border); }
.btn-outline:hover { background: var(--surface-card); }
.btn-row { display: flex; flex-wrap: wrap; gap: 0.8rem; }

/* ---------- cards with chevron headers ---------- */
.cards { display: grid; gap: 1.1rem; grid-template-columns: repeat(3, minmax(0, 1fr)); }
.cards.cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.cards.cols-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.cards.one { grid-template-columns: minmax(0, 1fr); }
@media (max-width: 980px) { .cards.cols-4 { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 720px) { .cards, .cards.cols-2, .cards.cols-4 { grid-template-columns: minmax(0, 1fr); } }
.card { background: var(--surface-card); border: 1px solid var(--border); border-radius: var(--radius-md); overflow: hidden; display: flex; flex-direction: column; min-width: 0; --h: var(--header-1); --h-text: var(--header-1-text); --h-ink: var(--header-1-ink); }
.card.h2 { --h: var(--header-2); --h-text: var(--header-2-text); --h-ink: var(--header-2-ink); }
.card.h3 { --h: var(--header-3); --h-text: var(--header-3-text); --h-ink: var(--header-3-ink); }
.card.r1 { --h: var(--ramp4-1); --h-text: var(--ramp4-1-text); --h-ink: var(--ramp4-1-ink); }
.card.r2 { --h: var(--ramp4-2); --h-text: var(--ramp4-2-text); --h-ink: var(--ramp4-2-ink); }
.card.r3 { --h: var(--ramp4-3); --h-text: var(--ramp4-3-text); --h-ink: var(--ramp4-3-ink); }
.card.r4 { --h: var(--ramp4-4); --h-text: var(--ramp4-4-text); --h-ink: var(--ramp4-4-ink); }
.card.s1 { --h: var(--six-1); --h-text: var(--six-1-text); --h-ink: var(--six-1-ink); }
.card.s2 { --h: var(--six-2); --h-text: var(--six-2-text); --h-ink: var(--six-2-ink); }
.card.s3 { --h: var(--six-3); --h-text: var(--six-3-text); --h-ink: var(--six-3-ink); }
.card.s4 { --h: var(--six-4); --h-text: var(--six-4-text); --h-ink: var(--six-4-ink); }
.card.s5 { --h: var(--six-5); --h-text: var(--six-5-text); --h-ink: var(--six-5-ink); }
.card.s6 { --h: var(--six-6); --h-text: var(--six-6-text); --h-ink: var(--six-6-ink); }
.chevron { display: flex; align-items: center; gap: 0.7rem; min-height: 40px; width: max-content; max-width: 100%; padding: 0.55rem 2.2rem 0.55rem 1.1rem; background: var(--h); color: var(--h-text); font-family: var(--font-display); font-size: 0.78rem; font-weight: 700; letter-spacing: 0.05em; line-height: 1.15; text-transform: uppercase; clip-path: polygon(0 0, calc(100% - 20px) 0, 100% 50%, calc(100% - 20px) 100%, 0 100%); border-bottom-right-radius: 0; }
.chevron .num { font-size: 0.95rem; opacity: 0.9; }
.card-body { padding: 1.1rem 1.1rem 1.2rem; display: flex; flex-direction: column; gap: 0.75rem; flex: 1; }
.card-body p, .card-body ul { max-width: none; }
.card-body ul { padding-left: 1.1em; }
.card-body li::marker { color: var(--h-ink); }
.subhead { font-weight: 700; font-style: italic; color: var(--h-ink); font-size: 1rem; line-height: 1.3; }
.chip { margin-top: auto; align-self: stretch; background: var(--surface-chip); border: 1px solid var(--h-ink); border-radius: var(--radius-sm); padding: 0.5rem 0.7rem; font-size: 0.88rem; line-height: 1.3; text-align: center; color: var(--ink); }
.card-link { margin-top: auto; font-weight: 700; font-size: 0.95rem; }

/* ---------- takeaway band ---------- */
.band { background: var(--band); color: var(--band-text); border-radius: var(--radius-sm); display: grid; grid-template-columns: auto minmax(0, 1fr); gap: 1.4rem; align-items: center; padding: 1.1rem 1.5rem; margin-top: clamp(1.4rem, 3vw, 2.2rem); }
.band-label { font-family: var(--font-display); font-weight: 700; font-size: 0.8rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--band-label); white-space: nowrap; }
.band p { margin: 0; max-width: none; font-size: 1rem; line-height: 1.4; }
@media (max-width: 600px) { .band { grid-template-columns: minmax(0, 1fr); gap: 0.5rem; } }

/* ---------- key numbers ---------- */
.keys { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 1.1rem; }
.keys.cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
@media (max-width: 900px) { .keys { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
.key { background: var(--surface-card); border: 1px solid var(--border); border-radius: var(--radius-md); padding: 1.2rem 1.1rem 1.1rem; text-align: center; min-width: 0; }
.key-value { font-family: var(--font-display); font-weight: 700; font-size: clamp(1.7rem, 3vw, 2.2rem); line-height: 1; color: var(--key-1); white-space: nowrap; }
.key:nth-child(2) .key-value { color: var(--key-2); }
.key:nth-child(3) .key-value { color: var(--key-3); }
.key:nth-child(4) .key-value { color: var(--key-4); }
.key-label { margin-top: 0.6rem; font-size: 0.72rem; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; color: var(--ink-muted); line-height: 1.35; }

/* ---------- radionuclide tiles ---------- */
.tile-rows { display: grid; gap: 1rem; }
.tile-row { display: grid; grid-template-columns: 150px minmax(0, 1fr); gap: 1rem; align-items: start; }
@media (max-width: 600px) { .tile-row { grid-template-columns: minmax(0, 1fr); gap: 0.4rem; } }
.tile-row-label { font-family: var(--font-display); font-size: 0.7rem; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase; color: var(--ink-muted); padding-top: 0.5rem; }
.tiles { display: flex; flex-wrap: wrap; gap: 1rem 1.2rem; }
.tile-wrap { display: grid; justify-items: center; gap: 0.3rem; width: 96px; }
.tile { width: 75px; height: 75px; border-radius: var(--radius-lg); border: 1px solid var(--tile-outline); display: grid; grid-template-rows: auto 1fr auto; padding: 4px 6px 5px; font-family: var(--font-sans); --tf: var(--tile-stable); --tt: var(--tile-stable-text); background: var(--tf); color: var(--tt); }
.tile.alpha { --tf: var(--tile-alpha); --tt: var(--tile-alpha-text); }
.tile.beta { --tf: var(--tile-beta); --tt: var(--tile-beta-text); }
.tile.pet { --tf: var(--tile-pet); --tt: var(--tile-pet-text); }
.tile.spect { --tf: var(--tile-spect); --tt: var(--tile-spect-text); }
.tile .t-top, .tile .t-bot { display: flex; justify-content: space-between; font-size: 0.6rem; line-height: 1.05; }
.tile .t-top b { font-weight: 700; font-size: 0.66rem; }
.tile .t-sym { font-weight: 700; font-size: 1.4rem; line-height: 1; align-self: center; justify-self: center; }
.tile-name { font-size: 0.72rem; color: var(--ink); text-align: center; line-height: 1.2; margin: 0; }
.tile-note { font-size: 0.66rem; color: var(--ink-2); text-align: center; line-height: 1.2; margin: 0; }

/* ---------- comparison rows ---------- */
.rows { display: grid; gap: 0.6rem; }
.row { display: grid; grid-template-columns: 220px minmax(0, 1fr); align-items: stretch; background: var(--surface-card); border: 1px solid var(--border); border-radius: var(--radius-md); overflow: hidden; --h: var(--row-1); --h-text: var(--row-1-text); }
.row:nth-child(2) { --h: var(--row-2); --h-text: var(--row-2-text); }
.row:nth-child(3) { --h: var(--row-3); --h-text: var(--row-3-text); }
.row:nth-child(4) { --h: var(--row-4); --h-text: var(--row-4-text); }
.row:nth-child(5) { --h: var(--row-5); --h-text: var(--row-5-text); }
.rows.six-ramp .row:nth-child(1) { --h: var(--six-1); --h-text: var(--six-1-text); }
.rows.six-ramp .row:nth-child(2) { --h: var(--six-2); --h-text: var(--six-2-text); }
.rows.six-ramp .row:nth-child(3) { --h: var(--six-3); --h-text: var(--six-3-text); }
.rows.six-ramp .row:nth-child(4) { --h: var(--six-4); --h-text: var(--six-4-text); }
.rows.six-ramp .row:nth-child(5) { --h: var(--six-5); --h-text: var(--six-5-text); }
.rows.six-ramp .row:nth-child(6) { --h: var(--six-6); --h-text: var(--six-6-text); }
.rows.timeline .row { grid-template-columns: 150px minmax(0, 1fr); }
.rows.timeline .row-label { justify-content: flex-start; font-size: 0.8rem; }
.rows.timeline .row-cells { grid-template-columns: minmax(0, 1fr); }
.rows.timeline .row-cell { border-left: 0; padding: 0.85rem 1.1rem; font-size: 1rem; line-height: 1.45; }
.row-cell b.row-title { display: inline; font-size: inherit; letter-spacing: 0; text-transform: none; color: var(--ink); margin: 0; font-weight: 700; }
.row-title::after { content: "."; }
.rows.six-ramp .row { grid-template-columns: 76px minmax(0, 1fr); }
.rows.six-ramp .row-label { justify-content: center; padding: 0.85rem 1.2rem 0.85rem 0.6rem; font-size: 0.95rem; }
@media (max-width: 700px) { .rows.timeline .row { grid-template-columns: minmax(0, 1fr); } .rows.timeline .row-cell { border-top: 1px solid var(--hairline-soft); } }
.row-label { background: var(--h); color: var(--h-text); font-family: var(--font-display); font-size: 0.74rem; font-weight: 700; letter-spacing: 0.05em; text-transform: uppercase; padding: 0.9rem 1.6rem 0.9rem 1rem; clip-path: polygon(0 0, calc(100% - 18px) 0, 100% 50%, calc(100% - 18px) 100%, 0 100%); display: flex; align-items: center; }
.row-cells { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); }
.row-cell { padding: 0.8rem 1rem; font-size: 0.95rem; line-height: 1.35; border-left: 1px solid var(--hairline-soft); }
.row-cell b { display: block; font-size: 0.7rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--ink-muted); margin-bottom: 0.2rem; }
@media (max-width: 700px) { .row { grid-template-columns: minmax(0, 1fr); } .row-label { clip-path: none; padding: 0.6rem 1rem; } .row-cells { grid-template-columns: minmax(0, 1fr); } .row-cell { border-left: 0; border-top: 1px solid var(--hairline-soft); } }

/* ---------- discovery technologies ---------- */
.tech-group { background: var(--surface-card); border: 1px solid var(--border); border-radius: var(--radius-md); padding: 1.3rem 1.4rem 1.1rem; min-width: 0; }
.tech-title { font-size: 0.82rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--ink-muted); margin-bottom: 0.9rem; padding-bottom: 0.6rem; border-bottom: 1px solid var(--hairline-soft); }
.tech-list { list-style: none; padding: 0; margin: 0; max-width: none; display: grid; gap: 0.7rem; }
.tech-list li { position: relative; padding-left: 1.2rem; font-size: 0.97rem; line-height: 1.45; margin: 0; }
.tech-list li::before { content: ""; position: absolute; left: 0; top: 0.55em; width: 8px; height: 8px; border-radius: 50%; background: var(--accent); }
.tech-list b { color: var(--ink); }

/* ---------- tables ---------- */
.table-wrap { overflow-x: auto; border: 1px solid var(--border); border-radius: var(--radius-md); background: var(--surface-card); }
.table-wrap table { min-width: 720px; }
th, td { text-align: left; padding: 0.7rem 0.8rem; border-bottom: 1px solid var(--hairline-soft); vertical-align: top; font-size: 0.93rem; line-height: 1.35; }
thead th { background: var(--band); color: var(--band-text); font-family: var(--font-display); font-size: 0.72rem; font-weight: 700; letter-spacing: 0.06em; text-transform: uppercase; border-bottom: 0; white-space: nowrap; }
tbody tr:last-child td { border-bottom: 0; }
td .prog { font-family: var(--font-display); font-weight: 700; letter-spacing: 0.04em; white-space: nowrap; }
.nuc { white-space: nowrap; }

/* pipeline: a chevron bar runs through the phase columns up to the program's stage */
.pipeline th.ph, .pipeline td.ph { text-align: center; width: 9.5%; padding-inline: 0.2rem; }
.pipeline td.ph { position: relative; padding-block: 1.2rem; }
.pipeline td.ph.on::before { content: ""; position: absolute; left: -1px; right: -1px; top: 50%; height: 18px; transform: translateY(-50%); background: var(--bar); }
.pipeline td.ph.on.first::before { left: 12%; border-radius: 3px 0 0 3px; }
.pipeline td.ph.on.last::before { right: 12%; clip-path: polygon(0 0, calc(100% - 9px) 0, 100% 50%, calc(100% - 9px) 100%, 0 100%); }
.pipeline td.ph.on.first.last::before { border-radius: 3px 0 0 3px; }
.pipeline td.ph .sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); }
.pipeline tfoot td { font-size: 0.8rem; color: var(--ink-muted); border-top: 1px solid var(--hairline-soft); }

/* ---------- figures ---------- */
figure { margin: 0; }
.figure { background: var(--surface-card); border: 1px solid var(--border); border-radius: var(--radius-md); padding: 1rem 1rem 0.8rem; }
.figure svg { width: 100%; height: auto; color: var(--ink); }
.figure figcaption { font-size: 0.82rem; font-style: italic; color: var(--ink-muted); text-align: center; margin-top: 0.6rem; }
.fig-accent { fill: var(--accent); }
.fig-alpha { fill: var(--tile-alpha); } .fig-beta { fill: var(--tile-beta); }
.fig-card { fill: var(--surface-card); } .fig-ground { fill: var(--surface); }
.fig-muted { fill: var(--ink-muted); } .fig-hair { stroke: var(--hairline); }
.fig-text { font-family: var(--font-sans); font-size: 15px; fill: currentColor; }
.fig-text-sm { font-family: var(--font-sans); font-size: 13.5px; fill: var(--ink-muted); }
.fig-label { font-family: var(--font-display); font-size: 12.5px; font-weight: 700; letter-spacing: 0.08em; fill: var(--ink-muted); }

/* ---------- steps (numbered because the process is a sequence) ---------- */
.steps { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 1.1rem; }
.steps.six { grid-template-columns: repeat(3, minmax(0, 1fr)); }
@media (max-width: 980px) { .steps, .steps.six { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 600px) { .steps, .steps.six { grid-template-columns: minmax(0, 1fr); } }

/* ---------- quote ---------- */
.quote { display: grid; grid-template-columns: auto minmax(0, 1fr); gap: 0.6rem 1.2rem; align-items: start; max-width: 760px; }
.quote-mark { font-family: var(--font-display); font-size: 5rem; line-height: 0.6; color: var(--accent); font-weight: 700; padding-top: 0.6rem; }
.quote blockquote { margin: 0; font-family: var(--font-display); font-weight: 700; font-style: italic; text-transform: uppercase; font-size: clamp(1.1rem, 2vw, 1.5rem); line-height: 1.25; letter-spacing: 0.01em; color: var(--ink); }
.quote cite { display: block; grid-column: 2; font-style: normal; color: var(--ink-muted); font-size: 0.95rem; }

/* ---------- people ---------- */
.people { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1.1rem; }
@media (max-width: 700px) { .people { grid-template-columns: minmax(0, 1fr); } }
.person { background: var(--surface-card); border: 1px solid var(--border); border-radius: var(--radius-md); padding: 1.2rem 1.25rem; display: grid; grid-template-columns: 96px minmax(0, 1fr); gap: 0.35rem 1.15rem; align-items: start; min-width: 0; }
.person-text { display: grid; gap: 0.35rem; align-content: start; min-width: 0; }
.person-photo { width: 96px; height: 96px; border-radius: 50%; object-fit: cover; display: block; background: var(--surface); box-shadow: 0 0 0 1px var(--hairline), 0 0 0 4px var(--surface-card), 0 0 0 5px var(--accent); margin: 5px; }
.person-photo-empty { display: grid; place-items: center; background: var(--surface); box-shadow: 0 0 0 1px var(--hairline), 0 0 0 4px var(--surface-card), 0 0 0 5px var(--hairline-soft); }
.person-photo-empty span { font-family: var(--font-display); font-weight: 700; font-size: 1.5rem; letter-spacing: 0.06em; color: var(--ink-muted); }
.person-placeholder { border-style: dashed; border-color: var(--hairline); background: transparent; }
.person-placeholder .person-photo-empty { border: 1px dashed var(--hairline); box-shadow: none; }
.person-placeholder .person-name { color: var(--ink-muted); }
.person-placeholder .person-role { font-weight: 500; color: var(--ink-muted); }
@media (max-width: 420px) { .person { grid-template-columns: 72px minmax(0, 1fr); gap: 0.35rem 0.9rem; } .person-photo { width: 72px; height: 72px; } .person-photo-empty span { font-size: 1.15rem; } }
.people.lead-first > :first-child { grid-column: 1 / -1; }
.person-name { font-family: var(--font-display); font-weight: 700; font-size: 1.05rem; letter-spacing: 0.02em; color: var(--ink-title); }
.person-role { font-weight: 700; font-size: 0.92rem; }
.person-aff { font-size: 0.86rem; color: var(--ink-muted); }
.person p { margin: 0.3rem 0 0; font-size: 0.95rem; max-width: none; }

/* ---------- news ---------- */
.news-list { display: grid; gap: 1rem; }
.news-item { background: var(--surface-card); border: 1px solid var(--border); border-radius: var(--radius-md); padding: 1.1rem 1.2rem; display: grid; grid-template-columns: 110px minmax(0, 1fr); gap: 1rem; }
@media (max-width: 600px) { .news-item { grid-template-columns: minmax(0, 1fr); gap: 0.3rem; } }
.news-date { font-family: var(--font-display); font-weight: 700; font-size: 0.85rem; letter-spacing: 0.06em; color: var(--ink-muted); }
.news-item h3 { font-family: var(--font-sans); font-size: 1.1rem; text-transform: none; letter-spacing: 0; }
.news-item p { max-width: none; margin-top: 0.4rem; }

/* ---------- contact form ---------- */
.form { display: grid; gap: 0.9rem; max-width: 560px; }
.field { display: grid; gap: 0.35rem; }
.field label { font-size: 0.78rem; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase; color: var(--ink-muted); }
.field input, .field select, .field textarea { font: inherit; color: var(--ink); background: var(--surface-card); border: 1px solid var(--border); border-radius: var(--radius-sm); padding: 0.65rem 0.75rem; width: 100%; min-width: 0; }
.field textarea { min-height: 150px; resize: vertical; }
.form-note { font-size: 0.85rem; color: var(--ink-muted); }
.form-result { border: 1px solid var(--border); border-radius: var(--radius-md); background: var(--surface-card); padding: 1rem 1.1rem; display: grid; gap: 0.6rem; }
.form-result textarea { font: inherit; font-size: 0.9rem; min-height: 140px; width: 100%; color: var(--ink); background: var(--surface); border: 1px solid var(--hairline); border-radius: var(--radius-sm); padding: 0.6rem; }
.copy-line { display: flex; flex-wrap: wrap; align-items: center; gap: 0.6rem; }
.mono { font-variant-numeric: tabular-nums; user-select: all; }
.contact-grid { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 6fr); gap: clamp(1.5rem, 4vw, 3.5rem); }
@media (max-width: 820px) { .contact-grid { grid-template-columns: minmax(0, 1fr); } }
.contact-block { display: grid; gap: 0.3rem; margin-bottom: 1.4rem; }
.contact-block address { font-style: normal; }

/* ---------- misc ---------- */
.dl { display: grid; grid-template-columns: max-content minmax(0, 1fr); gap: 0.4rem 1.2rem; margin: 0; }
.dl dt { font-size: 0.78rem; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase; color: var(--ink-muted); padding-top: 0.15em; }
.dl dd { margin: 0; }
.prose h3 { margin-top: 1.6rem; margin-bottom: 0.4rem; }
.prose h3:first-child { margin-top: 0; }
.legal h2 { margin-top: 2rem; margin-bottom: 0.6rem; }
.legal h2:first-of-type { margin-top: 0; }
.cta-pair { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1.1rem; }
@media (max-width: 700px) { .cta-pair { grid-template-columns: minmax(0, 1fr); } }

/* ---------- footer ---------- */
.site-footer { background: var(--panel); color: var(--panel-ink); border-top: 1px solid rgba(220, 211, 188, 0.25); margin-top: clamp(2rem, 5vw, 4rem); padding-block: clamp(2rem, 4vw, 3.2rem) 1.4rem; }
.footer-grid { display: grid; grid-template-columns: minmax(0, 1.6fr) repeat(3, minmax(0, 1fr)); gap: 2rem; }
@media (max-width: 900px) { .footer-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 560px) { .footer-grid { grid-template-columns: minmax(0, 1fr); } }
.footer-mark { width: 26px; height: auto; display: block; margin-bottom: 0.8rem; color: var(--logo); }
.footer-meta a { color: inherit; }
.footer-tagline { font-family: var(--font-display); font-weight: 700; font-size: 0.95rem; letter-spacing: 0.04em; color: var(--panel-heading); margin-bottom: 0.8rem; }
.footer-address { font-style: normal; font-size: 0.92rem; line-height: 1.5; }
.footer-meta { font-size: 0.8rem; margin-top: 0.6rem; opacity: 0.85; }
.footer-heading { font-family: var(--font-display); font-size: 0.75rem; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; color: var(--panel-heading); margin: 0 0 0.7rem; }
.footer-col ul { list-style: none; margin: 0; padding: 0; }
.footer-col li { margin: 0 0 0.45rem; }
.footer-col a, .footer-legal a { color: var(--panel-ink); text-decoration-color: var(--panel-heading); font-size: 0.92rem; }
.footer-legal { margin-top: 2rem; padding-top: 1rem; border-top: 1px solid rgba(220, 211, 188, 0.3); display: flex; flex-wrap: wrap; justify-content: space-between; gap: 0.6rem 2rem; font-size: 0.8rem; }
.footer-legal p { margin: 0; max-width: none; }

/* ---------- print ---------- */
@media print {
  .site-header, .site-footer .footer-grid, .menu-toggle, .theme-toggle, .banner-actions, .btn-row, .skip, .banner-canvas, .motion-toggle { display: none !important; }
  .banner { min-height: 0; color: #000; background: #fff; }
  .banner-title { color: #000; text-shadow: none; } .banner-sub, .banner-kicker { color: #333; }
  body { background: #fff; color: #000; }
  .section { padding-block: 1.2rem; break-inside: avoid; }
  a { text-decoration: none; color: inherit; }
  .card, .person, .news-item, .key, .figure, .table-wrap, .row { border-color: #999; break-inside: avoid; }
}