/* The AI Campus — site design system.
   OLED black, electric blue, blue diamond markers, double-bezel cards,
   no emoji, no gradients beyond the subtle radial orbs and hairline bezels.

   Sections
     1  fonts (self-hosted, latin subset)
     2  tokens
     3  base + a11y primitives
     4  motion primitives (reveal / stagger)
     5  nav + mobile sheet
     6  shared type + buttons + cards
     7  home: hero, marquee, bento, timeline, stepper, guides, faq, cta
     8  footer
     9  guide page
    10  responsive
*/

/* =================================================================== 1 fonts */
/* Self-hosted from Google Fonts (SIL Open Font License 1.1), latin subset.
   Outfit 500/600/700, DM Sans 400/500/600, JetBrains Mono 400/500. */

@font-face { font-family:'Outfit'; font-style:normal; font-weight:500; font-display:swap;
  src:url('fonts/outfit-500.woff2') format('woff2');
  unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD; }
@font-face { font-family:'Outfit'; font-style:normal; font-weight:600; font-display:swap;
  src:url('fonts/outfit-600.woff2') format('woff2');
  unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD; }
@font-face { font-family:'Outfit'; font-style:normal; font-weight:700; font-display:swap;
  src:url('fonts/outfit-700.woff2') format('woff2');
  unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD; }

@font-face { font-family:'DM Sans'; font-style:normal; font-weight:400; font-display:swap;
  src:url('fonts/dmsans-400.woff2') format('woff2');
  unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD; }
@font-face { font-family:'DM Sans'; font-style:normal; font-weight:500; font-display:swap;
  src:url('fonts/dmsans-500.woff2') format('woff2');
  unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD; }
@font-face { font-family:'DM Sans'; font-style:normal; font-weight:600; font-display:swap;
  src:url('fonts/dmsans-600.woff2') format('woff2');
  unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD; }

@font-face { font-family:'JetBrains Mono'; font-style:normal; font-weight:400; font-display:swap;
  src:url('fonts/jetbrainsmono-400.woff2') format('woff2');
  unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD; }
@font-face { font-family:'JetBrains Mono'; font-style:normal; font-weight:500; font-display:swap;
  src:url('fonts/jetbrainsmono-500.woff2') format('woff2');
  unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD; }

/* Metric-matched fallbacks: display:swap then costs no layout. */
@font-face { font-family:'Outfit Fallback'; src:local('Helvetica Neue'),local('Helvetica'),local('Arial');
  size-adjust:101.7%; ascent-override:94.9%; descent-override:23.7%; line-gap-override:0%; }
@font-face { font-family:'DM Sans Fallback'; src:local('Helvetica Neue'),local('Helvetica'),local('Arial');
  size-adjust:103.5%; ascent-override:93.3%; descent-override:23.3%; line-gap-override:0%; }
@font-face { font-family:'Mono Fallback'; src:local('SF Mono'),local('Menlo'),local('Consolas');
  size-adjust:100%; ascent-override:102%; descent-override:30%; line-gap-override:0%; }

/* ================================================================== 2 tokens */

:root {
  /* colour */
  --bg:#050607; --surface:#0C0E12; --surface2:#08090C;
  --line:rgba(255,255,255,.08); --line2:rgba(255,255,255,.14);
  --blue:#2563EB; --blue2:#5B8DEF; --blue3:#8FB0F5;
  --text:#EDEFF2; --muted:#A7ADB8; --dim:#767D8A;   /* --dim raised to 4.9:1 on --bg */
  --ring:#5B8DEF;

  /* type */
  --display:'Outfit','Outfit Fallback',"Clash Display",sans-serif;
  --body:'DM Sans','DM Sans Fallback',"General Sans",sans-serif;
  --serif:Georgia,'Iowan Old Style','Times New Roman',serif;
  --mono:'JetBrains Mono','Mono Fallback',"SF Mono",Menlo,monospace;

  /* surfaces — stop repeating the literals */
  --panel:linear-gradient(180deg,var(--surface),var(--surface2));
  --bezel:linear-gradient(160deg, rgba(255,255,255,.12), rgba(255,255,255,.03) 45%, rgba(37,99,235,.22));
  --bezel-strong:linear-gradient(160deg, rgba(255,255,255,.14), rgba(255,255,255,.03) 40%, rgba(37,99,235,.28));

  /* radii */
  --r-sm:8px; --r-md:10px; --r-lg:20px; --r-xl:24px; --r-2xl:28px; --r-full:999px;

  /* motion — the transitions.dev token set */
  --dur-stagger:40ms;
  --dur-micro:80ms;
  --dur-quick:150ms;
  --dur-fast:250ms;
  --dur-medium:350ms;
  --dur-slow:400ms;
  --dur-slowest:500ms;
  --ease:cubic-bezier(.22,1,.36,1);            /* the house curve: open, close, move */
  --ease-inout:ease-in-out;
  --ease-bounce:cubic-bezier(.34,1.36,.64,1);
  --ease-drawer:cubic-bezier(.32,.72,0,1);     /* beUI EASE_DRAWER, for the mobile sheet */

  /* distance + blur */
  --dist-micro:4px; --dist-base:8px; --dist-med:12px;
  --blur-sm:2px; --blur-md:3px; --blur-lg:8px;

  /* layout */
  --nav-h:76px;
}

/* One kill switch. Every duration, distance and blur below is a token, so this
   is the only place motion is disabled — no hand-maintained selector list. */
@media (prefers-reduced-motion: reduce) {
  :root {
    --dur-stagger:0ms; --dur-micro:0ms; --dur-quick:0ms; --dur-fast:0ms;
    --dur-medium:0ms; --dur-slow:0ms; --dur-slowest:0ms;
    --dist-micro:0px; --dist-base:0px; --dist-med:0px;
    --blur-sm:0px; --blur-md:0px; --blur-lg:0px;
  }
  *, *::before, *::after {
    animation-duration:.01ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.01ms !important;
    scroll-behavior:auto !important;
  }
  html { scroll-behavior:auto; }
}

/* ==================================================== 3 base + a11y primitives */

* { box-sizing:border-box; }
html { color-scheme:dark; scroll-behavior:smooth; }
body { margin:0; background:var(--bg); color:var(--text); font-family:var(--body); font-size:17px; line-height:1.55; -webkit-font-smoothing:antialiased; overflow-x:hidden; }
a { color:inherit; }
h1,h2,h3,h4,p { margin:0; }
img { max-width:100%; }
.mono { font-family:var(--mono); font-variant-numeric:tabular-nums; letter-spacing:-.02em; }
.serif { font-family:var(--serif); font-style:italic; font-weight:400; }

:where(a, button, summary, [tabindex]):focus-visible {
  outline:2px solid var(--ring); outline-offset:3px; border-radius:var(--r-sm);
}

.skip { position:absolute; left:-9999px; top:0; z-index:100; padding:12px 20px;
        background:var(--text); color:var(--bg); font-weight:600; font-size:15px;
        text-decoration:none; border-radius:0 0 var(--r-md) 0; }
.skip:focus { left:0; }

.sr-only { position:absolute; width:1px; height:1px; padding:0; margin:-1px;
           overflow:hidden; clip-path:inset(50%); white-space:nowrap; border:0; }

main { display:block; position:relative; }

.orbs { position:fixed; inset:0; pointer-events:none; z-index:0; overflow:hidden; }
.orb { position:absolute; border-radius:50%; filter:blur(120px); }
.orb1 { width:720px; height:720px; background:rgba(37,99,235,.16); top:-300px; right:-220px; }
.orb2 { width:560px; height:560px; background:rgba(37,99,235,.09); top:1400px; left:-260px; }
.orb3 { width:640px; height:640px; background:rgba(37,99,235,.12); bottom:-320px; right:-200px; }
.wrap { position:relative; z-index:1; max-width:1120px; margin:0 auto; padding:0 28px; }

/* Anchors must never land under the sticky bar. */
:where(section[id], .prompt[id], [id].anchor-target) { scroll-margin-top:calc(var(--nav-h) + 22px); }

/* ==================================================== 4 motion primitives */

/* Reveal-on-scroll. Without JS the content is simply visible — this construction
   cannot fail closed. Enter only: nothing ever re-hides on the way back up. */
.rise > * { opacity:1; }
.js .rise > * {
  opacity:0;
  transform:translateY(var(--dist-med));
  filter:blur(var(--blur-md));
  transition:opacity var(--dur-slowest) var(--ease),
             transform var(--dur-slowest) var(--ease),
             filter var(--dur-slowest) var(--ease);
  transition-delay:calc(min(var(--i,0), 8) * var(--stagger, 60ms));
}
.js .rise.is-shown > * { opacity:1; transform:none; filter:blur(0); }
/* Elements that run their own reveal opt out of the group fade. */
.js .rise > .tgen,
.js .roster.rise > * { opacity:1; transform:none; filter:none; transition:none; }
@media (prefers-reduced-motion: reduce) {
  .js .rise > * { opacity:1; transform:none; filter:none; }
}

/* Word-by-word blur-in for one headline per page. Words are in the served HTML. */
.tgen .w { display:inline-block; }
.js .tgen .w { opacity:0; filter:blur(var(--blur-lg)); transform:translateY(var(--dist-base)); }
.js .tgen.is-shown .w {
  opacity:1; filter:blur(0); transform:none;
  transition:opacity var(--dur-slowest) var(--ease) calc(var(--i,0) * 55ms),
             filter var(--dur-slowest) var(--ease) calc(var(--i,0) * 55ms),
             transform var(--dur-slowest) var(--ease) calc(var(--i,0) * 55ms);
}
@media (prefers-reduced-motion: reduce) {
  .js .tgen .w { opacity:1; filter:none; transform:none; }
}

/* Masked patterns — one paint, no DOM, no JS. */
.pattern { position:absolute; inset:0; pointer-events:none; z-index:0; }
.pattern.grid {
  background-image:
    linear-gradient(to right,  rgba(255,255,255,.045) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255,255,255,.045) 1px, transparent 1px);
  background-size:56px 56px;
  -webkit-mask-image:radial-gradient(72% 68% at 50% 34%, #000 8%, transparent 76%);
          mask-image:radial-gradient(72% 68% at 50% 34%, #000 8%, transparent 76%);
}
.pattern.dots {
  background-image:radial-gradient(circle at 1px 1px, rgba(143,176,245,.16) 1px, transparent 0);
  background-size:22px 22px;
  -webkit-mask-image:radial-gradient(75% 60% at 50% 0%, #000 20%, transparent 80%);
          mask-image:radial-gradient(75% 60% at 50% 0%, #000 20%, transparent 80%);
}

/* Border beam — a short blue chip rides the border ring. One per viewport. */
.beam { position:relative; }
.beam > .beam-track {
  position:absolute; inset:0; border-radius:inherit;
  padding:1px; overflow:hidden; pointer-events:none; z-index:3;
  -webkit-mask:linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
          mask:linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite:xor; mask-composite:exclude;
}
.beam > .beam-track::before {
  content:""; position:absolute;
  width:var(--beam-size,72px); aspect-ratio:1;
  offset-path:rect(0 auto auto 0 round var(--beam-size,72px));
  offset-distance:0%;
  background:linear-gradient(to left, var(--blue3), var(--blue), transparent);
  animation:beam-travel var(--beam-dur,8s) linear infinite;
}
@keyframes beam-travel { to { offset-distance:100%; } }
@supports not (offset-path: rect(0 auto auto 0 round 8px)) {
  .beam > .beam-track::before { display:none; }
  .beam > .beam-track { background:linear-gradient(160deg, rgba(91,141,239,.45), transparent 55%); }
}
@media (prefers-reduced-motion: reduce) {
  .beam > .beam-track::before { animation:none; offset-distance:12%; opacity:.6; }
}

/* Shine ring — slower, calmer than the beam; safe on 2-3 elements. */
.shine { position:relative; }
.shine > .shine-ring {
  position:absolute; inset:0; border-radius:inherit;
  padding:var(--shine-w,1px);
  background-image:radial-gradient(transparent, transparent, var(--shine-c, rgba(91,141,239,.85)), transparent, transparent);
  background-size:300% 300%;
  -webkit-mask:linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
          mask:linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite:xor; mask-composite:exclude;
  pointer-events:none; will-change:background-position;
  animation:shine var(--shine-dur,14s) infinite linear;
}
@keyframes shine {
  0% { background-position:0% 0%; } 50% { background-position:100% 100%; } to { background-position:0% 0%; }
}
@media (prefers-reduced-motion: reduce) { .shine > .shine-ring { animation:none; background-position:40% 40%; } }

/* ================================================================= 5 nav */

.site-head { position:sticky; top:0; z-index:50; }
.site-head::before {
  content:""; position:absolute; inset:0; z-index:-1;
  background:rgba(5,6,7,.72);
  border-bottom:1px solid transparent;
  opacity:0;
  transition:opacity var(--dur-fast) var(--ease), border-color var(--dur-fast) var(--ease);
}
.is-stuck .site-head::before {
  opacity:1; border-bottom-color:var(--line);
  box-shadow:0 12px 32px rgba(0,0,0,.4);
  -webkit-backdrop-filter:blur(12px); backdrop-filter:blur(12px);
}
.stick-sentinel { position:absolute; top:0; left:0; width:1px; height:1px; pointer-events:none; }

.top { display:flex; align-items:center; justify-content:space-between; gap:20px; padding:22px 0; min-height:var(--nav-h); }
.brand { display:flex; align-items:center; gap:12px; font-family:var(--display); font-weight:600; font-size:17px; letter-spacing:.02em; text-decoration:none; }
.brand img { width:44px; height:27px; aspect-ratio:400/246; display:block; mix-blend-mode:screen; }
.nav-right { display:flex; align-items:center; gap:26px; }
.nav-links { display:flex; align-items:center; gap:24px; }
.nav-links a { position:relative; font-size:15px; font-weight:500; color:var(--muted); text-decoration:none; padding:4px 0; transition:color var(--dur-quick) var(--ease); }
.nav-links a::after {
  content:""; position:absolute; left:0; right:0; bottom:-2px; height:1.5px;
  background:var(--blue2); transform:scaleX(0); transform-origin:0 50%;
  transition:transform var(--dur-fast) var(--ease);
}
.nav-links a:hover { color:var(--text); }
.nav-links a[aria-current="page"] { color:var(--text); }
.nav-links a[aria-current="page"]::after { transform:scaleX(1); }
@media (hover:hover) and (pointer:fine) { .nav-links a:hover::after { transform:scaleX(1); } }

a.join { font-weight:600; font-size:15px; color:var(--blue2); text-decoration:none; padding:10px 16px; border:1px solid rgba(91,141,239,.35); border-radius:var(--r-full); white-space:nowrap; transition:background var(--dur-fast) var(--ease), border-color var(--dur-fast) var(--ease); }
a.join:hover { background:rgba(37,99,235,.12); border-color:rgba(91,141,239,.6); }

.menu-btn { display:none; }
.nav-cta { display:none; }
.brand picture { display:block; flex:0 0 auto; }

/* --- mobile sheet --- */
.sheet { position:fixed; inset:0; z-index:80; }
.sheet[hidden] { display:none; }
.sheet-scrim { position:absolute; inset:0; background:rgba(5,6,7,.72);
  -webkit-backdrop-filter:blur(6px); backdrop-filter:blur(6px);
  opacity:0; transition:opacity var(--dur-fast) var(--ease); }
.sheet-panel {
  position:absolute; top:0; right:0; bottom:0; width:min(340px, 86vw);
  padding:22px 24px calc(26px + env(safe-area-inset-bottom));
  background:var(--surface); border-left:1px solid var(--line);
  display:flex; flex-direction:column;
  transform:translateX(100%);
  transition:transform var(--dur-slow) var(--ease-drawer);
}
.sheet.is-open .sheet-scrim { opacity:1; }
.sheet.is-open .sheet-panel { transform:translateX(0); }
.sheet.is-closing .sheet-panel, .sheet.is-closing .sheet-scrim { transition-duration:var(--dur-medium); }
.sheet-panel nav { display:flex; flex-direction:column; margin:26px 0 24px; }
.sheet-panel nav a { font-family:var(--display); font-weight:600; font-size:22px; color:var(--text);
  text-decoration:none; padding:15px 0; border-bottom:1px solid var(--line); }
.sheet-panel nav a[aria-current="page"] { color:var(--blue2); }
.sheet-x { align-self:flex-end; font:inherit; font-size:26px; line-height:1;
  width:40px; height:40px; border-radius:var(--r-full);
  background:transparent; border:1px solid var(--line2); color:var(--muted); cursor:pointer; }
.sheet-panel .btn { justify-content:center; }
@media (min-width:861px) { .sheet { display:none !important; } }

/* ============================================ 6 shared type, buttons, cards */

.eyebrow { display:flex; align-items:center; gap:12px; font-weight:600; font-size:13px; letter-spacing:.22em; text-transform:uppercase; color:var(--blue2); }
.diamond { width:9px; height:9px; background:var(--blue); transform:rotate(45deg); flex:0 0 auto; }

section { padding:72px 0; border-top:1px solid var(--line); }
section h2 { font-family:var(--display); font-weight:700; font-size:clamp(32px,4vw,46px); line-height:1.05; letter-spacing:-.02em; margin-top:18px; text-wrap:balance; max-width:14.6em; }
section .intro { font-size:19px; color:var(--muted); margin-top:16px; max-width:39.7em; }
section .intro b { color:var(--text); font-weight:500; }
.rule { margin-top:22px; font-size:16px; color:var(--muted); max-width:42.4em; }
.rule b { color:var(--text); font-weight:500; }
.rule a { color:var(--blue2); text-decoration:none; border-bottom:1px solid rgba(91,141,239,.4); }
.rule a:hover { color:var(--blue3); }

.ctas { display:flex; gap:14px; flex-wrap:wrap; margin-top:34px; align-items:center; }
.btn { display:inline-flex; align-items:center; gap:14px; padding:14px 18px 14px 24px; border-radius:var(--r-full); font-weight:600; font-size:16px; text-decoration:none;
       transition:transform var(--dur-slowest) var(--ease), background var(--dur-medium) var(--ease), border-color var(--dur-medium) var(--ease); }
.btn:active { transform:scale(.97); }
.btn.primary { background:var(--text); color:var(--bg); }
.btn.primary:hover { background:#fff; }
.btn .arr { width:30px; height:30px; border-radius:50%; background:rgba(5,6,7,.1); display:inline-flex; align-items:center; justify-content:center; font-size:16px; transition:transform var(--dur-slowest) var(--ease); }
.btn:hover .arr { transform:translate(2px,-1px) scale(1.05); }
.btn.ghost { border:1px solid var(--line2); color:var(--text); background:rgba(255,255,255,.02); }
.btn.ghost:hover { background:rgba(255,255,255,.05); border-color:rgba(91,141,239,.35); }
.ctas .fine { font-size:14px; color:var(--dim); }

.card { border-radius:var(--r-xl); padding:4px; background:var(--bezel); }
.card .in { border-radius:var(--r-lg); height:100%; padding:28px 26px; background:var(--panel); box-shadow:inset 0 1px 1px rgba(255,255,255,.06); }
.card .k { font-family:var(--display); font-weight:600; font-size:13px; letter-spacing:.16em; color:var(--blue2); }
.card h3 { font-family:var(--display); font-weight:600; font-size:24px; line-height:1.15; margin-top:10px; }
.card p { font-size:16px; color:var(--muted); margin-top:10px; }
.card p b { color:var(--text); font-weight:500; }
.three { display:grid; grid-template-columns:repeat(3,minmax(0,1fr)); gap:18px; margin-top:40px; }
.shell { border-radius:var(--r-2xl); padding:6px; background:var(--bezel-strong); }
.core { border-radius:22px; background:var(--panel); box-shadow:inset 0 1px 1px rgba(255,255,255,.08); overflow:hidden; }

/* ======================================================= 7 home: hero */

.home-hero { padding:70px 0 84px; position:relative; }
.home-hero h1 { font-family:var(--display); font-weight:700; font-size:clamp(44px,6.4vw,80px); line-height:1.0; letter-spacing:-.02em; margin-top:22px; text-wrap:balance; max-width:9.99em; }
.home-hero h1 .blue { color:var(--blue2); }
.home-hero .lede { font-size:21px; color:var(--muted); margin-top:24px; max-width:38.3em; }
.home-hero .lede b { color:var(--text); font-weight:500; }

.home-hero.split { display:grid; grid-template-columns:minmax(0,1.25fr) minmax(0,.85fr); gap:56px; align-items:center; }
.home-hero.split h1 { font-size:clamp(44px,5.4vw,68px); max-width:8.66em; }
.home-hero.split .lede { font-size:19.5px; max-width:30.1em; }
.home-hero.split .marks { flex-direction:column; gap:10px; }
.home-hero > .pattern { inset:-24px 0 auto; height:calc(100% + 24px); }
.home-hero > .hh-copy, .home-hero > .shell { position:relative; z-index:1; }

.roster { padding:28px 26px 26px; }
.roster .rh { display:flex; align-items:center; gap:12px; font-weight:600; font-size:12px; letter-spacing:.2em; text-transform:uppercase; color:var(--blue2); }
.roster ul { list-style:none; margin:20px 0 0; padding:0; }
.roster li { display:grid; grid-template-columns:44px minmax(0,1fr); align-items:baseline; row-gap:2px; padding:14px 0; border-top:1px solid var(--line); }
.roster li:first-child { border-top:0; padding-top:4px; }
.roster .n { font-family:var(--mono); font-size:15px; color:var(--blue2); }
.roster .t { font-family:var(--display); font-weight:600; font-size:17px; color:var(--text); }
.roster .d { grid-column:2; font-size:14px; color:var(--muted); }
.roster .rf { margin-top:20px; padding-top:18px; border-top:1px solid var(--line); font-size:14px; color:var(--dim); }
/* roster rows stagger in behind the hero copy */
.js .roster.rise > ul > li { opacity:0; transform:translateY(var(--dist-base)); filter:blur(var(--blur-sm));
  transition:opacity var(--dur-slow) var(--ease), transform var(--dur-slow) var(--ease), filter var(--dur-slow) var(--ease);
  transition-delay:calc(var(--li,0) * 70ms + 160ms); }
.js .roster.rise.is-shown > ul > li { opacity:1; transform:none; filter:blur(0); }
@media (prefers-reduced-motion: reduce) { .js .roster.rise > ul > li { opacity:1; transform:none; filter:none; } }

.home-hero .marks, .marks { display:flex; gap:28px; flex-wrap:wrap; margin-top:36px; font-size:15px; color:var(--muted); }
.home-hero .marks span::before, .marks span::before { content:""; display:inline-block; width:7px; height:7px; background:var(--blue); transform:rotate(45deg); margin-right:10px; vertical-align:middle; }

/* ------------------------------------------------ tools marquee */

.tools { padding:34px 0; border-top:1px solid var(--line); }
.tools-l { font-size:12px; font-weight:600; letter-spacing:.2em; text-transform:uppercase; color:var(--dim); }
.marquee {
  --gap:40px; --dur:44s;
  display:flex; gap:var(--gap); overflow:hidden; margin-top:18px; padding:4px 0; user-select:none;
  -webkit-mask-image:linear-gradient(90deg, transparent, #000 6%, #000 94%, transparent);
          mask-image:linear-gradient(90deg, transparent, #000 6%, #000 94%, transparent);
}
.marquee .track { display:flex; flex-shrink:0; gap:var(--gap); min-width:100%;
  align-items:center; justify-content:space-around;
  animation:marquee var(--dur) linear infinite; }
@keyframes marquee { from { transform:translateX(0); } to { transform:translateX(calc(-100% - var(--gap))); } }
.marquee:hover .track, .marquee:focus-within .track { animation-play-state:paused; }
.marquee .item { font-family:var(--mono); font-size:14px; letter-spacing:-.01em; color:var(--muted);
  white-space:nowrap; display:inline-flex; align-items:center; gap:12px; }
.marquee .item::before { content:""; width:7px; height:7px; background:var(--blue); transform:rotate(45deg); flex:0 0 auto; }
@media (prefers-reduced-motion: reduce) {
  .marquee { mask-image:none; -webkit-mask-image:none; overflow-x:auto; }
  .marquee .track { animation:none; }
  .marquee .track + .track { display:none; }
}

/* ------------------------------------------------ legacy systems grid
   (kept working: the class vocabulary is public API for guide pages) */
.systems { display:grid; grid-template-columns:repeat(3,minmax(0,1fr)); gap:18px; margin-top:40px; }
.system { padding:26px 24px; border-radius:var(--r-lg); background:var(--panel); border:1px solid var(--line); }
.system .k { font-family:var(--mono); font-size:13px; color:var(--blue2); letter-spacing:-.02em; }
.system h3 { font-family:var(--display); font-weight:600; font-size:21px; line-height:1.2; margin-top:12px; }
.system p { font-size:15.5px; color:var(--muted); margin-top:8px; }

/* ------------------------------------------------ systems bento */

.bento { list-style:none; margin:40px 0 0; padding:0; display:grid; gap:18px;
  grid-template-columns:repeat(4,minmax(0,1fr)); grid-auto-rows:minmax(232px, auto); }
.bento > li {
  position:relative; isolation:isolate; display:flex; flex-direction:column;
  padding:24px 24px 26px; border-radius:var(--r-lg);
  border:1px solid var(--line); background:var(--panel);
  transition:transform var(--dur-slowest) var(--ease), border-color var(--dur-medium) var(--ease);
}
.bento > li.wide { grid-column:span 2; }
.bento .k { display:block; font-family:var(--mono); font-size:13px; color:var(--blue2); letter-spacing:-.02em; }
.bento h3 { font-family:var(--display); font-weight:600; font-size:21px; line-height:1.2; margin-top:10px; }
.bento p { font-size:15.5px; color:var(--muted); margin-top:8px; }
.bento .bh { margin-top:auto; padding-top:20px; }
/* wide tiles: copy left, illustration right, so the extra width reads intentional */
@media (min-width:861px) {
  .bento > li.wide { flex-direction:row-reverse; align-items:center; gap:40px; }
  .bento > li.wide .bh { margin-top:0; padding-top:0; flex:1 1 auto; min-width:0; }
  .bento > li.wide .mini { flex:0 0 216px; margin:0 14px 0 0; transform:scale(1.22); transform-origin:center; }
}
/* pointer spotlight, desktop pointers only */
.bento > li::before {
  content:""; position:absolute; inset:0; border-radius:inherit; z-index:-1;
  background:radial-gradient(220px circle at var(--mx,-400px) var(--my,-400px), rgba(37,99,235,.18), transparent 100%);
  opacity:0; transition:opacity var(--dur-medium) var(--ease); pointer-events:none;
}
@media (hover:hover) and (pointer:fine) {
  .bento > li:hover { transform:translateY(-3px); border-color:rgba(91,141,239,.30); }
  .bento > li:hover::before, .bento > li:focus-within::before { opacity:1; }
}

/* CSS-only mini-UI illustrations, drawn with divs. Decorative, aria-hidden. */
.mini { position:relative; width:100%; max-width:216px; height:86px; margin-bottom:4px; }
.mini > * { position:absolute; }

/* 01 receptionist — two chat bubbles and a typing indicator */
.mini.chat .b { height:26px; border-radius:13px; background:rgba(255,255,255,.06); border:1px solid var(--line2); }
.mini.chat .b1 { left:0; top:0; width:132px; border-bottom-left-radius:5px; }
.mini.chat .b2 { right:0; top:32px; width:112px; border-bottom-right-radius:5px;
  background:rgba(37,99,235,.30); border-color:rgba(91,141,239,.45); }
.mini.chat .b3 { left:0; top:64px; width:52px; border-bottom-left-radius:5px;
  display:flex; align-items:center; justify-content:center; gap:5px; }
.mini.chat .b3::before, .mini.chat .b3::after { content:""; width:5px; height:5px; border-radius:50%; background:var(--dim); }

/* 02 booking — a week strip with one slot taken */
.mini.cal .days { left:0; top:6px; display:flex; gap:6px; }
.mini.cal .days i { display:block; width:22px; height:22px; border-radius:5px;
  background:rgba(255,255,255,.05); border:1px solid var(--line); }
.mini.cal .days i.on { background:var(--blue); border-color:var(--blue2); }
.mini.cal .slot { left:56px; top:40px; width:130px; height:30px; border-radius:8px;
  background:rgba(37,99,235,.20); border:1px solid rgba(91,141,239,.45); }
.mini.cal .slot::before { content:""; position:absolute; left:10px; top:9px; width:44px; height:4px;
  border-radius:2px; background:var(--blue3); opacity:.85; }
.mini.cal .slot::after { content:""; position:absolute; left:10px; top:18px; width:78px; height:3px;
  border-radius:2px; background:var(--blue3); opacity:.4; }

/* 03 photo studio — a frame with corner brackets around the shot */
.mini.frame .f { left:16px; top:8px; width:132px; height:70px; border-radius:6px;
  background:radial-gradient(95% 85% at 28% 8%, rgba(37,99,235,.5), #0A0C10 72%);
  border:1px solid var(--line); }
.mini.frame .c { width:16px; height:16px; border:1.5px solid var(--blue2); }
.mini.frame .c1 { left:8px;   top:0;   border-right:0; border-bottom:0; }
.mini.frame .c2 { left:140px; top:0;   border-left:0;  border-bottom:0; }
.mini.frame .c3 { left:8px;   top:70px; border-right:0; border-top:0; }
.mini.frame .c4 { left:140px; top:70px; border-left:0;  border-top:0; }

/* 04 faceless channel — a stack of vertical reel frames */
.mini.reel .r { top:2px; width:50px; height:82px; border-radius:7px;
  border:1px solid var(--line2); background:var(--surface2); }
.mini.reel .r1 { left:0; border-color:rgba(91,141,239,.4);
  background:linear-gradient(180deg, rgba(37,99,235,.18), var(--surface2) 60%); }
.mini.reel .r2 { left:58px; opacity:.65; }
.mini.reel .r3 { left:116px; opacity:.35; }
.mini.reel .play { left:19px; top:33px; width:0; height:0;
  border-left:15px solid var(--blue2); border-top:10px solid transparent; border-bottom:10px solid transparent; }

/* 05 second brain — a stack of notes, the top one written on */
.mini.notes .s { width:104px; height:66px; border-radius:8px; border:1px solid var(--line); background:var(--surface2); }
.mini.notes .s1 { left:2px;  top:14px; transform:rotate(-6deg); }
.mini.notes .s2 { left:22px; top:11px; transform:rotate(3deg); }
.mini.notes .s3 { left:44px; top:8px;  transform:rotate(0deg);
  background:linear-gradient(180deg, rgba(37,99,235,.12), var(--surface2) 70%);
  border-color:rgba(91,141,239,.4); }
.mini.notes .l { height:3px; border-radius:2px; background:var(--blue3); opacity:.5; }
.mini.notes .l1 { left:56px; top:24px; width:62px; opacity:.8; }
.mini.notes .l2 { left:56px; top:34px; width:76px; }
.mini.notes .l3 { left:56px; top:44px; width:48px; }

/* 06 idea engine — a ranked board with the multiplier badge */
.mini.rank .row { left:0; height:20px; border-radius:5px;
  background:rgba(255,255,255,.05); border:1px solid var(--line); }
.mini.rank .r1 { top:0;  width:126px; background:rgba(37,99,235,.16); border-color:rgba(91,141,239,.4); }
.mini.rank .r2 { top:30px; width:104px; }
.mini.rank .r3 { top:60px; width:86px; }
.mini.rank .badge-m { right:0; top:-1px; padding:5px 8px; border-radius:6px; background:var(--blue); color:#fff;
  font-family:var(--mono); font-size:13px; line-height:1.1; letter-spacing:-.03em; }

/* ------------------------------------------------ tracks timeline */

.tl { position:relative; margin-top:44px; padding-left:52px; list-style:none; counter-reset:none; }
.tl > .rail { display:block; }
.tl .rail { position:absolute; left:19px; top:8px; bottom:8px; width:2px; border-radius:2px;
  background:linear-gradient(to bottom, transparent, rgba(255,255,255,.20) 6%, rgba(255,255,255,.20) 94%, transparent); overflow:hidden; }
.tl .rail::after { content:""; position:absolute; inset:0; transform-origin:50% 0;
  background:linear-gradient(to bottom, var(--blue), var(--blue3)); transform:scaleY(1); opacity:.55; }
@supports (animation-timeline: view()) {
  .tl { view-timeline-name:--tl; view-timeline-axis:block; }
  .tl .rail::after { opacity:1; animation:tl-fill linear both; animation-timeline:--tl; animation-range:entry 18% exit 60%; }
  @keyframes tl-fill { from { transform:scaleY(0); } to { transform:scaleY(1); } }
}
@media (prefers-reduced-motion: reduce) { .tl .rail::after { animation:none; transform:scaleY(1); opacity:.45; } }

.tl > li { position:relative; padding:0 0 22px; }
.tl > li:last-child { padding-bottom:0; }
.tl .node { position:absolute; left:-39px; top:28px; width:13px; height:13px;
  background:var(--blue); transform:rotate(45deg); box-shadow:0 0 0 6px var(--bg); }
.track { display:grid; grid-template-columns:72px minmax(0,1fr) auto; gap:22px; align-items:start;
  padding:24px 26px; border-radius:var(--r-lg); background:var(--panel); border:1px solid var(--line);
  transition:transform var(--dur-slowest) var(--ease), border-color var(--dur-medium) var(--ease); }
@media (hover:hover) and (pointer:fine) {
  .track:hover { transform:translateY(-2px); border-color:rgba(91,141,239,.28); }
}
.track .k { font-family:var(--mono); font-size:26px; color:var(--blue2); line-height:1.15; }
.track h3 { font-family:var(--display); font-weight:600; font-size:22px; line-height:1.15; }
.track p { font-size:16px; color:var(--muted); margin-top:6px; max-width:42.4em; }
.track p b { color:var(--text); font-weight:500; }
.track .tag { font-family:var(--mono); font-size:13px; color:var(--dim); white-space:nowrap; padding-top:6px; }
.tracks { display:flex; flex-direction:column; gap:14px; margin-top:40px; }

/* ------------------------------------------------ how-it-works stepper */

.stepper { display:grid; grid-template-columns:repeat(3,minmax(0,1fr)); gap:0; margin-top:44px; position:relative; }
.stepper::before { content:""; position:absolute; left:26px; right:calc(33.333% - 26px); top:26px; height:1px; background:var(--line2); }
.hstep { position:relative; padding:0 26px 0 0; }
.hstep .num { position:relative; z-index:1; display:inline-flex; align-items:center; justify-content:center;
  width:52px; height:52px; border-radius:var(--r-full); background:var(--bg); border:1px solid var(--line2);
  font-family:var(--mono); font-size:19px; color:var(--blue2); letter-spacing:-.03em; }
.hstep h3 { font-family:var(--display); font-weight:600; font-size:21px; line-height:1.2; margin-top:20px; }
.hstep p { font-size:15.5px; color:var(--muted); margin-top:8px; max-width:23.3em; }
.hstep p b { color:var(--text); font-weight:500; }

/* ------------------------------------------------ guide cards */

.guide-list { display:grid; grid-template-columns:repeat(2,minmax(0,1fr)); gap:18px; margin-top:40px; }
a.guide { text-decoration:none; display:block; position:relative; border-radius:var(--r-xl);
          transition:transform var(--dur-slowest) var(--ease); }
@media (hover:hover) and (pointer:fine) { a.guide:hover { transform:translateY(-3px); } }
a.guide .in { display:flex; flex-direction:column; gap:10px; height:100%; }
a.guide .meta { display:flex; align-items:center; justify-content:space-between; gap:16px; }
a.guide .date { font-family:var(--mono); font-size:13px; color:var(--dim); }
a.guide h3 { font-family:var(--display); font-weight:600; font-size:24px; line-height:1.15; margin-top:2px; }
a.guide p { font-size:16px; color:var(--muted); margin-top:0; }
a.guide .foot { margin-top:auto; padding-top:14px; display:flex; align-items:baseline; justify-content:space-between; gap:16px; flex-wrap:wrap; }
a.guide .read { font-weight:600; font-size:15px; color:var(--blue2); }
a.guide .read .arr { margin-left:8px; transition:transform var(--dur-slow) var(--ease); display:inline-block; }
a.guide:hover .read .arr { transform:translateX(4px); }
a.guide .rt { font-family:var(--mono); font-size:13px; color:var(--dim); }
/* A single guide reads better as one full-width featured card than as a
   half-empty two-column grid. */
.guide-list.solo { grid-template-columns:1fr; }
.guide-list.solo .in { padding:32px 30px; }
.guide-list.solo h3 { font-size:28px; }
.guide-list.solo p { max-width:62ch; }
.empty { margin-top:40px; padding:28px 26px; border-radius:var(--r-lg); border:1px solid var(--line); background:var(--surface2); color:var(--muted); font-size:16px; }

/* ------------------------------------------------ faq */

.faq { display:flex; flex-direction:column; gap:12px; margin-top:40px; max-width:900px; }
.qa { border:1px solid var(--line); border-radius:var(--r-lg); background:var(--panel); overflow:hidden;
      transition:border-color var(--dur-fast) var(--ease); }
.qa[open] { border-color:rgba(91,141,239,.32); }
.qa summary { display:flex; align-items:center; justify-content:space-between; gap:20px;
  padding:20px 24px; cursor:pointer; list-style:none;
  font-family:var(--display); font-weight:600; font-size:18.5px; line-height:1.3; color:var(--text);
  transition:color var(--dur-quick) var(--ease); }
.qa summary::-webkit-details-marker { display:none; }
.qa summary:hover { color:var(--blue3); }
.qa summary:focus-visible { outline:2px solid var(--ring); outline-offset:-3px; border-radius:var(--r-lg); }
.qa .chev { flex:0 0 auto; color:var(--blue2); transition:transform var(--dur-fast) var(--ease); }
.qa[open] .chev { transform:rotate(180deg); }
.qa .ans { display:grid; grid-template-rows:0fr; transition:grid-template-rows var(--dur-fast) var(--ease); }
.qa[open] .ans { grid-template-rows:1fr; }
.qa .ans-in { overflow:hidden; }
.qa .ans-in p { padding:0 24px 22px; font-size:16.5px; color:var(--muted); max-width:47.9em; }
.qa .ans-in p + p { padding-top:14px; }

/* ------------------------------------------------ two-up prose blocks */

.duo { display:grid; grid-template-columns:repeat(2,minmax(0,1fr)); gap:18px; margin-top:40px; }
.duo > div { padding:28px 26px; border-radius:var(--r-lg); background:var(--panel); border:1px solid var(--line); }
.duo h3 { font-family:var(--display); font-weight:600; font-size:24px; }
.duo p { font-size:16px; color:var(--muted); margin-top:10px; }
.duo p b { color:var(--text); font-weight:500; }

/* ------------------------------------------------ prose (about) */

.prose { max-width:43.8em; }
.prose p { font-size:18px; color:var(--muted); margin-top:18px; }
.prose p b { color:var(--text); font-weight:500; }
.prose a { color:var(--blue2); text-decoration:none; border-bottom:1px solid rgba(91,141,239,.4); }
.prose a:hover { color:var(--blue3); }
.prose ul { margin:18px 0 0; padding:0; list-style:none; }
.prose li { position:relative; padding-left:24px; font-size:18px; color:var(--muted); margin-top:12px; }
.prose li b { color:var(--text); font-weight:500; }
.prose li::before { content:""; position:absolute; left:0; top:11px; width:8px; height:8px; background:var(--blue); transform:rotate(45deg); }

.duo-prose { display:grid; grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr); gap:56px; align-items:center; margin-top:8px; }
.duo-prose .prose { margin-top:0; }
.pullquote { margin:0; padding:26px 0 26px 32px; border-left:2px solid rgba(91,141,239,.45); max-width:26ch; }
.pullquote p { font-family:var(--serif); font-style:italic; font-weight:400; font-size:clamp(26px,3.2vw,36px);
  line-height:1.25; color:var(--blue3); letter-spacing:-.01em; }
.pullquote .by { font-family:var(--body); font-style:normal; font-size:14px; color:var(--dim);
  margin-top:18px; letter-spacing:.06em; text-transform:uppercase; }

/* ------------------------------------------------ closing CTA */

.cta { position:relative; text-align:center; padding:96px 0 80px; border-top:1px solid var(--line); overflow:hidden; }
.cta::before {
  content:""; position:absolute; left:50%; top:0; width:min(900px,120%); height:520px;
  transform:translateX(-50%); pointer-events:none; z-index:0;
  background:radial-gradient(50% 50% at 50% 30%, rgba(37,99,235,.16), rgba(37,99,235,.04) 55%, transparent 78%);
}
.cta > * { position:relative; z-index:1; }
.cta img { width:120px; height:74px; aspect-ratio:400/246; display:block; margin:0 auto 26px; mix-blend-mode:screen; }
.cta picture { display:block; position:relative; z-index:1; animation:dome-float 9s var(--ease-inout) infinite; }
@keyframes dome-float { 0%,100% { transform:translateY(0); } 50% { transform:translateY(-8px); } }
@media (prefers-reduced-motion: reduce) { .cta picture { animation:none; } }
.cta h2 { font-family:var(--display); font-weight:700; font-size:clamp(32px,4vw,46px); line-height:1.05; letter-spacing:-.02em; margin:0 auto; max-width:10.7em; text-wrap:balance; }
.cta .sub { font-family:var(--serif); font-style:italic; font-size:23px; line-height:1.45; color:var(--blue3); margin:18px auto 0; max-width:52ch; }
.cta .ctas { justify-content:center; }
.cta .list { display:flex; justify-content:center; gap:28px; flex-wrap:wrap; margin-top:34px; font-size:15px; color:var(--muted); }
.cta .list span::before { content:""; display:inline-block; width:7px; height:7px; background:var(--blue); transform:rotate(45deg); margin-right:10px; vertical-align:middle; }
.cta .url { font-family:var(--mono); font-size:15px; color:var(--dim); margin-top:26px; }

/* ================================================================ 8 footer */

footer.site { padding:56px 0 40px; border-top:1px solid var(--line);
  display:grid; grid-template-columns:minmax(0,1.6fr) minmax(0,1fr) minmax(0,1.2fr); gap:44px; align-items:start; }
footer.site .fbrand img { width:56px; height:35px; aspect-ratio:400/246; display:block; mix-blend-mode:screen; }
footer.site .fbrand p { font-family:var(--serif); font-style:italic; font-size:19px; line-height:1.4; color:var(--blue3); margin-top:18px; max-width:24ch; }
footer.site .fcol .fh { font-size:12px; font-weight:600; letter-spacing:.2em; text-transform:uppercase; color:var(--dim); margin:0 0 14px; }
footer.site .fcol ul { list-style:none; margin:0; padding:0; }
footer.site .fcol li { margin-top:10px; }
footer.site .fcol a { font-size:15px; color:var(--muted); text-decoration:none; transition:color var(--dur-quick) var(--ease); }
footer.site .fcol a:hover { color:var(--text); }
footer.site .legal { grid-column:1 / -1; margin-top:8px; padding-top:24px; border-top:1px solid var(--line);
  display:flex; justify-content:space-between; gap:20px; flex-wrap:wrap; font-size:13px; color:var(--dim); }

/* ============================================================ 9 guide page */

.crumbs { padding-top:26px; }
.crumbs ol { display:flex; align-items:center; gap:10px; flex-wrap:wrap; list-style:none; margin:0; padding:0; font-size:14px; color:var(--dim); }
.crumbs li + li::before { content:"/"; margin-right:10px; color:var(--line2); }
.crumbs a { color:var(--muted); text-decoration:none; transition:color var(--dur-quick) var(--ease); }
.crumbs a:hover { color:var(--text); }
.crumbs [aria-current="page"] { color:var(--text); }

.readbar { position:fixed; inset:0 0 auto 0; height:2px; z-index:60; background:var(--blue2);
  transform:scaleX(0); transform-origin:0 50%; pointer-events:none; }
@supports (animation-timeline: scroll()) {
  .readbar { animation:readbar linear both; animation-timeline:scroll(root block); }
  @keyframes readbar { from { transform:scaleX(0); } to { transform:scaleX(1); } }
}

.hero { display:grid; grid-template-columns:minmax(0,1.15fr) minmax(0,1fr); gap:56px; align-items:center; padding:44px 0 78px; }
.hero h1 { font-family:var(--display); font-weight:700; font-size:clamp(44px,6.2vw,76px); line-height:1.0; letter-spacing:-.02em; margin-top:22px; text-wrap:balance; }
.hero h1 .blue { color:var(--blue2); }
.hero .lede { font-size:21px; color:var(--muted); margin-top:22px; max-width:23.3em; }
.hero .lede b { color:var(--text); font-weight:500; }
.hero .gmeta { display:flex; gap:20px; flex-wrap:wrap; margin-top:22px; font-family:var(--mono); font-size:13px; color:var(--dim); }

.post { padding:0; }
.post .thumb { aspect-ratio:16/10; background:radial-gradient(120% 90% at 20% 0%, rgba(37,99,235,.55), rgba(37,99,235,.08) 45%, #0A0C10 80%); position:relative; display:flex; align-items:flex-end; padding:22px; }
.post .thumb .tag { position:absolute; top:16px; left:16px; padding:5px 9px; font-size:11px; font-weight:600; letter-spacing:.06em; text-transform:uppercase; background:rgba(5,6,7,.8); border:1px solid var(--line2); border-radius:6px; color:var(--muted); }
.post .thumb .cap { font-family:var(--serif); font-style:italic; font-size:22px; color:#C8D6F5; line-height:1.3; max-width:22ch; }
.post .body { display:flex; gap:18px; padding:20px 22px 22px; align-items:stretch; }
.post .t { flex:1; min-width:0; display:flex; flex-direction:column; gap:6px; }
.post .ptitle { font-family:var(--body); font-weight:600; font-size:16px; line-height:1.3; }
.post .who { color:var(--muted); font-size:14px; }
.post .stats { font-family:var(--mono); font-size:13px; color:var(--dim); margin-top:auto; display:flex; gap:12px; flex-wrap:wrap; }
.post .stats .v { color:var(--muted); }
.badge { align-self:flex-start; font-family:var(--mono); font-weight:500; font-size:30px; line-height:1; padding:12px 14px; border-radius:var(--r-md); background:var(--blue); color:#fff; letter-spacing:-.03em; }
.post .why { padding:14px 22px 20px; border-top:1px solid var(--line); font-size:14px; color:var(--muted); }
.post .why b { color:var(--text); font-weight:500; }

/* --- guide layout: one TOC list in the DOM, two presentations --- */
.guide-body { display:block; }

.toc-box { margin:0 0 22px; border:1px solid var(--line); border-radius:var(--r-lg); background:var(--panel); overflow:hidden; }
.toc-box > summary { display:flex; align-items:center; justify-content:space-between; gap:16px;
  padding:16px 20px; cursor:pointer; list-style:none;
  font-size:12px; font-weight:600; letter-spacing:.2em; text-transform:uppercase; color:var(--dim); }
.toc-box > summary::-webkit-details-marker { display:none; }
.toc-box[open] > summary { color:var(--blue2); }
.toc-box .chev { flex:0 0 auto; color:var(--blue2); transition:transform var(--dur-fast) var(--ease); }
.toc-box[open] .chev { transform:rotate(180deg); }
.toc-box ol { list-style:none; margin:0; padding:0 20px 14px; }
.toc-box a { display:block; padding:11px 0; color:var(--muted); text-decoration:none; font-size:15.5px;
  border-top:1px solid var(--line); transition:color var(--dur-quick) var(--ease); }
.toc-box li:first-child a { border-top:0; }
.toc-box a[aria-current="true"] { color:var(--text); }

@media (min-width:1100px) {
  .guide-body { display:grid; grid-template-columns:minmax(0,1fr) 216px; column-gap:56px; align-items:start; }
  .toc-box { position:sticky; top:calc(var(--nav-h) + 18px); margin:78px 0 0;
    border:0; background:none; border-radius:0; overflow:visible;
    max-height:calc(100vh - var(--nav-h) - 44px); overflow-y:auto; overscroll-behavior:contain; }
  .toc-box > summary { display:block; padding:0 0 12px; cursor:default; pointer-events:none; }
  .toc-box > summary .chev { display:none; }
  .toc-box ol { padding:0; }
  .toc-box a { position:relative; display:block; padding:8px 0 8px 24px; border-top:0;
    font-size:14.5px; line-height:1.35; color:var(--dim); }
  .toc-box a::before { content:""; position:absolute; left:2px; top:14px; width:7px; height:7px;
    background:var(--dim); transform:rotate(45deg) scale(.7);
    transition:background var(--dur-fast) var(--ease), transform var(--dur-fast) var(--ease); }
  .toc-box a:hover { color:var(--muted); }
  .toc-box a[aria-current="true"] { color:var(--text); }
  .toc-box a[aria-current="true"]::before { background:var(--blue); transform:rotate(45deg) scale(1); }
}

/* --- guide page: formula, steps, timeline, scores, costs --- */
.formula { display:grid; grid-template-columns:1fr auto 1fr auto 1fr; gap:18px; align-items:center; margin-top:40px; }
.formula .box { padding:26px 24px; border-radius:var(--r-lg); background:var(--panel); border:1px solid var(--line); }
.formula .box .l { font-size:12px; font-weight:600; letter-spacing:.2em; text-transform:uppercase; color:var(--dim); }
.formula .box .n { font-family:var(--mono); font-size:40px; margin-top:8px; letter-spacing:-.03em; font-variant-numeric:tabular-nums; }
.formula .box.result { border-color:rgba(91,141,239,.45); }
.formula .box.result .n { color:var(--blue2); }
.formula .op { font-family:var(--mono); font-size:34px; color:var(--dim); text-align:center; }
.formula .box p { font-size:14px; color:var(--muted); margin-top:8px; }

.steps { display:flex; flex-direction:column; gap:14px; margin-top:40px; }
.step { display:grid; grid-template-columns:72px minmax(0,1fr) auto; gap:22px; align-items:start; padding:24px 26px; border-radius:var(--r-lg); background:var(--panel); border:1px solid var(--line); }
.step .k { font-family:var(--mono); font-size:26px; color:var(--blue2); line-height:1.15; }
.step h3 { font-family:var(--display); font-weight:600; font-size:22px; line-height:1.15; }
.step p { font-size:16px; color:var(--muted); margin-top:6px; max-width:41em; }
.step p b { color:var(--text); font-weight:500; }
.step .time { font-family:var(--mono); font-size:13px; color:var(--dim); white-space:nowrap; padding-top:6px; }
.step.hi { border-color:rgba(91,141,239,.4); }

.morning { display:grid; grid-template-columns:repeat(5,minmax(0,1fr)); gap:0; margin-top:40px; position:relative; }
.morning::before { content:""; position:absolute; left:6%; right:6%; top:14px; height:1px; background:var(--line2); }
.m { position:relative; padding:0 12px; text-align:center; }
.m .dot { width:13px; height:13px; background:var(--blue); transform:rotate(45deg); margin:8px auto 22px; position:relative; z-index:1; box-shadow:0 0 0 6px var(--bg); }
.m .t { font-family:var(--mono); font-size:13px; color:var(--dim); }
.m h3 { font-family:var(--display); font-weight:600; font-size:18px; margin-top:6px; line-height:1.2; }
.m p { font-size:14px; color:var(--muted); margin-top:6px; }

.scores { display:grid; grid-template-columns:repeat(3,minmax(0,1fr)); gap:18px; margin-top:40px; }
.score { padding:26px 24px; border-radius:var(--r-lg); background:var(--panel); border:1px solid var(--line); }
.score .n { font-family:var(--mono); font-size:40px; color:var(--blue2); letter-spacing:-.03em; line-height:1; font-variant-numeric:tabular-nums; }
.score .n small { font-size:16px; color:var(--dim); letter-spacing:0; margin-left:6px; }
.score h3 { font-family:var(--display); font-weight:600; font-size:22px; margin-top:12px; }
.score p { font-size:15px; color:var(--muted); margin-top:6px; }
.chips { display:flex; flex-wrap:wrap; gap:8px; margin-top:26px; }
.chip { font-size:13px; padding:7px 12px; border-radius:var(--r-full); border:1px solid var(--line2); color:var(--muted); }
.chip.src { border-color:rgba(91,141,239,.4); color:var(--blue3); }
.chips-l { font-size:12px; font-weight:600; letter-spacing:.2em; text-transform:uppercase; color:var(--dim); margin-top:26px; }

.costs { display:grid; grid-template-columns:repeat(2,minmax(0,1fr)); gap:18px; margin-top:40px; }
.cost { border-radius:var(--r-xl); padding:4px; background:var(--bezel); }
.cost .in { border-radius:var(--r-lg); padding:30px 28px; background:var(--panel); height:100%; }
.cost .l { font-size:12px; font-weight:600; letter-spacing:.2em; text-transform:uppercase; color:var(--blue2); }
.cost .big { font-family:var(--mono); font-size:64px; line-height:1; margin-top:14px; letter-spacing:-.04em; font-variant-numeric:tabular-nums; }
.cost .big small { font-size:22px; color:var(--dim); letter-spacing:0; margin-left:6px; }
.cost p { font-size:16px; color:var(--muted); margin-top:14px; }
.cost p b { color:var(--text); font-weight:500; }
.asof { font-size:13px; color:var(--dim); margin-top:18px; }

.who { display:grid; grid-template-columns:repeat(2,minmax(0,1fr)); gap:18px; margin-top:40px; }
.who > div { padding:28px 26px; border-radius:var(--r-lg); background:var(--panel); border:1px solid var(--line); }
.who h3 { font-family:var(--display); font-weight:600; font-size:24px; }
.who p { font-size:16px; color:var(--muted); margin-top:10px; }
.who p b { color:var(--text); font-weight:500; }

/* --- guide page: prompt blocks --- */
.prompts { display:flex; flex-direction:column; gap:18px; margin-top:40px; }
.prompt { position:relative; border-radius:var(--r-xl); padding:4px; background:var(--bezel); }
.prompt .ph { position:sticky; top:calc(var(--nav-h) + 4px); z-index:2;
  display:flex; justify-content:space-between; align-items:flex-start; gap:18px;
  padding:22px 26px 18px; background:var(--panel); border-radius:var(--r-lg) var(--r-lg) 0 0; }
.prompt .k { font-family:var(--display); font-weight:600; font-size:13px; letter-spacing:.16em; color:var(--blue2); }
.prompt .k .of { color:var(--dim); font-weight:500; letter-spacing:.1em; }
.prompt h3 { font-family:var(--display); font-weight:600; font-size:24px; line-height:1.15; margin-top:8px; }
.prompt h3 .anchor { color:inherit; text-decoration:none; }
.prompt h3 .anchor:hover { color:var(--blue3); }
.prompt .ps { font-size:14px; color:var(--dim); margin-top:4px; }
.prompt .pt { padding:20px 26px 26px; background:var(--surface2); border-radius:0 0 var(--r-lg) var(--r-lg); border-top:1px solid var(--line); font-size:15.5px; line-height:1.6; color:var(--muted); }
.prompt .pt p + p { margin-top:12px; }

.copy { flex:0 0 auto; display:inline-flex; align-items:center; gap:8px;
  font:inherit; font-weight:600; font-size:14px; color:var(--text);
  background:rgba(255,255,255,.04); border:1px solid var(--line2); border-radius:var(--r-full);
  padding:10px 16px; cursor:pointer; white-space:nowrap;
  transition:background var(--dur-fast) var(--ease), color var(--dur-fast) var(--ease),
             border-color var(--dur-fast) var(--ease), transform var(--dur-quick) var(--ease); }
.copy:hover { background:rgba(255,255,255,.08); }
.copy:active { transform:scale(.97); }
.copy.done { color:var(--blue3); border-color:rgba(91,141,239,.5); }
.copy.fail { color:#FFB4B4; border-color:rgba(255,140,140,.45); }
.copy .copy-tick { width:0; opacity:0; overflow:visible;
  transition:width var(--dur-fast) var(--ease), opacity var(--dur-fast) var(--ease); }
.copy.done .copy-tick { width:14px; opacity:1; }

/* toast */
.toast { position:fixed; left:50%; bottom:28px; z-index:70;
  transform:translate(-50%, 16px) scale(.97); opacity:0; filter:blur(var(--blur-sm));
  pointer-events:none; padding:12px 20px; border-radius:var(--r-full);
  background:var(--surface); border:1px solid var(--line2); color:var(--text);
  font-size:14.5px; font-weight:500; box-shadow:0 12px 40px rgba(0,0,0,.55);
  transition:opacity var(--dur-medium) var(--ease), transform var(--dur-medium) var(--ease), filter var(--dur-medium) var(--ease); }
.toast.is-open { opacity:1; transform:translate(-50%, 0) scale(1); filter:blur(0); }
.toast.is-closing { transition-duration:var(--dur-fast); }

/* sticky mobile CTA (guide pages only) */
.scroll-40 { position:absolute; top:40%; left:0; width:1px; height:1px; pointer-events:none; }
.sticky-cta { display:none; }
@media (max-width:860px) {
  .sticky-cta { display:flex; align-items:center; gap:10px;
    position:fixed; left:0; right:0; bottom:0; z-index:55;
    padding:10px 14px calc(10px + env(safe-area-inset-bottom));
    background:rgba(5,6,7,.9);
    -webkit-backdrop-filter:blur(14px); backdrop-filter:blur(14px);
    border-top:1px solid var(--line);
    transform:translateY(110%);
    transition:transform var(--dur-medium) var(--ease); }
  .sticky-cta.is-up { transform:translateY(0); }
  .sticky-cta a { flex:1; display:flex; align-items:center; justify-content:center; gap:10px;
    padding:14px 18px; border-radius:var(--r-full); background:var(--text); color:var(--bg);
    font-weight:600; font-size:15.5px; text-decoration:none; }
  .sticky-cta .x { flex:0 0 auto; width:42px; height:42px; border-radius:var(--r-full);
    background:transparent; border:1px solid var(--line2); color:var(--muted);
    font:inherit; font-size:20px; line-height:1; cursor:pointer; }
  body.has-sticky-cta { padding-bottom:78px; }
}
.sticky-cta[hidden] { display:none !important; }

/* ============================================================ 10 responsive */

@media (max-width:1080px) {
  .bento { grid-template-columns:repeat(2,minmax(0,1fr)); grid-auto-rows:minmax(216px, auto); }
  .bento > li.wide { grid-column:span 2; }
}
@media (max-width: 860px) {
  body { font-size:16.5px; }
  /* Tracked uppercase labels are the widest single-line strings on the page.
     Sized so they still fit on one line in the metric fallback, which is a few
     percent wider than the web font — a re-wrap here shifts the whole hero. */
  .eyebrow { font-size:12px; letter-spacing:.16em; }
  .roster .rh, .tools-l, footer.site .fcol .fh, .chips-l, .cost .l, .formula .box .l { letter-spacing:.16em; }
  .top { flex-wrap:nowrap; gap:14px; padding:16px 0; }
  .nav-right { display:none; }
  .menu-btn { display:inline-flex; align-items:center; justify-content:center; gap:5px;
    flex-direction:column; width:44px; height:44px; flex:0 0 auto;
    background:transparent; border:1px solid var(--line2); border-radius:var(--r-full); cursor:pointer; }
  .menu-btn .bar { display:block; width:18px; height:1.6px; background:var(--text); border-radius:2px; }
  .nav-cta { display:inline-flex; align-items:center; font-weight:600; font-size:14px; color:var(--blue2); text-decoration:none;
    padding:9px 14px; border:1px solid rgba(91,141,239,.35); border-radius:var(--r-full); white-space:nowrap; margin-left:auto; }
  .hero { grid-template-columns:1fr; gap:36px; padding:26px 0 56px; }
  .home-hero { padding:40px 0 56px; }
  .home-hero.split { grid-template-columns:1fr; gap:34px; }
  .home-hero.split .marks { flex-direction:row; flex-wrap:wrap; gap:14px 22px; }
  .three, .scores, .costs, .who, .guide-list, .duo, .systems { grid-template-columns:1fr; }
  .bento { grid-template-columns:1fr; grid-auto-rows:auto; }
  .bento > li.wide { grid-column:span 1; }
  .stepper { grid-template-columns:1fr; gap:26px; }
  .stepper::before { display:none; }
  .hstep { padding-right:0; }
  .formula { grid-template-columns:1fr; }
  .formula .op { display:none; }
  .morning { grid-template-columns:1fr; gap:22px; }
  .morning::before { display:none; }
  .m { text-align:left; padding:0; display:grid; grid-template-columns:28px 1fr; column-gap:10px; }
  .m .dot { margin:8px 0 0; grid-row:1 / span 3; }
  .step, .track { grid-template-columns:48px 1fr; }
  .step .time, .track .tag { grid-column:2; padding-top:0; margin-top:10px; }
  .tl { padding-left:38px; }
  .tl .rail { left:12px; }
  .tl .node { left:-32px; top:24px; }
  .prompt .ph { flex-direction:column; position:static; }
  section { padding:56px 0; }
  .cta { padding:64px 0 56px; }
  .cta .sub { font-size:20px; }
  .cta .list { display:grid; grid-template-columns:repeat(2,minmax(0,1fr)); text-align:left; gap:12px 18px; max-width:440px; margin-left:auto; margin-right:auto; }
  .cta .list span { display:flex; align-items:flex-start; gap:0; }
  .cta .list span::before { margin-top:7px; flex:0 0 auto; }
  footer.site { grid-template-columns:repeat(2,minmax(0,1fr)); gap:32px; }
  footer.site .fbrand { grid-column:1 / -1; }
  .orb { filter:blur(70px); }
  .orb2 { display:none; }
  .duo-prose { grid-template-columns:1fr; gap:34px; }
  .pullquote { padding:0 0 0 22px; max-width:none; }
}
@media (max-width: 560px) {
  /* Stacked so the row count cannot change when the web font swaps in:
     a re-wrap of the hero buttons was the last remaining CLS source. */
  .home-hero .ctas, .hero .ctas { flex-direction:column; align-items:stretch; }
  .home-hero .ctas .btn, .hero .ctas .btn { justify-content:space-between; }
}
@media (max-width: 520px) {
  .home-hero .marks { gap:14px 22px; }
  .cost .big { font-size:52px; }
  .cta .list { gap:10px 14px; font-size:14px; }
}
@media (max-width: 380px) {
  .brand .bn { display:none; }
}
@media print { .js .rise > *, .js .roster.rise > ul > li { opacity:1 !important; transform:none !important; filter:none !important; } }

/* --- guide page: four-up cards, the five-pillar strip, brief downloads --- */
.four { display:grid; grid-template-columns:repeat(2,minmax(0,1fr)); gap:18px; margin-top:40px; }

.post .pillars { display:flex; flex-wrap:wrap; gap:8px; padding:0 22px 20px; }
.post .pillars span { display:inline-flex; align-items:baseline; gap:7px; padding:6px 11px; border-radius:var(--r-full); border:1px solid var(--line2); font-size:12px; }
.post .pillars b { font-weight:500; color:var(--muted); }
.post .pillars i { font-family:var(--mono); font-style:normal; font-size:13px; color:var(--blue2); font-variant-numeric:tabular-nums; }

.dl { display:grid; grid-template-columns:repeat(2,minmax(0,1fr)); gap:18px; margin-top:40px; }
.dl a { display:block; padding:26px 24px; border-radius:var(--r-lg); background:var(--panel); border:1px solid var(--line); text-decoration:none;
        transition:border-color var(--dur-medium) var(--ease), background var(--dur-medium) var(--ease); }
.dl a:hover { border-color:rgba(91,141,239,.45); background:rgba(255,255,255,.03); }
.dl .k { font-family:var(--display); font-weight:600; font-size:13px; letter-spacing:.16em; color:var(--blue2); }
.dl h3 { font-family:var(--display); font-weight:600; font-size:22px; line-height:1.15; margin-top:10px; color:var(--text); }
.dl p { font-size:15px; color:var(--muted); margin-top:8px; }
.dl .f { font-family:var(--mono); font-size:13px; color:var(--dim); margin-top:16px; word-break:break-all; }

@media (max-width: 920px) {
  .four, .dl { grid-template-columns:1fr; }
}