/* site.css: the 2026-10 marketing look (homepage, Instrument Review, Experiments).
   Other pages still use theme.css until they are moved over. Light only, by design. */
:root{
  --ink:#0E1116; --body:#3A414B; --muted:#5A626D; --faint:#6B7380;
  --line:#E3E6EA; --line-soft:#EEF0F2; --bg:#FFFFFF; --bg-soft:#FAFBFC; --bg-tint:#F4F7F5;
  --accent:#0B7A5A; --accent-ink:#0B6B4F; --accent-ink-hover:#064733; --accent-soft:#EAF5F0; --accent-soft-ink:#0B5A43;
  --warn-soft:#FFF4E5; --warn-ink:#5C3608; --warn-icon:#B4610E; --info-soft:#EEF2FB; --info-ink:#2F55B5;
  --dark:#0E1116; --dark-card:#171B22; --dark-line:#262C35; --dark-ink:#F3F5F7; --dark-body:#D7DCE2; --dark-muted:#B6BDC7; --dark-faint:#8A93A0; --dark-link:#8FE3C3;
  --display:'Bricolage Grotesque', system-ui, sans-serif;
  --sans:'Geist', system-ui, -apple-system, 'Segoe UI', sans-serif;
  --mono:'Geist Mono', ui-monospace, SFMono-Regular, Menlo, monospace;
  color-scheme:light;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--sans);font-size:17px;line-height:1.55;-webkit-font-smoothing:antialiased}
a{color:var(--accent-ink)}
a:hover{color:var(--accent-ink-hover)}
a:focus-visible,button:focus-visible{outline:2px solid var(--info-ink);outline-offset:3px;border-radius:6px}
img,video{max-width:100%}
code{font-family:var(--mono);font-size:.9em;background:var(--bg-soft);border:1px solid var(--line-soft);border-radius:6px;padding:1px 6px;color:var(--body)}
.wrap{max-width:1200px;margin:0 auto;padding:0 24px}
.skip{position:absolute;left:-9999px}
.skip:focus{left:16px;top:16px;background:var(--bg);padding:8px 12px;z-index:10}

/* Ribbon and header */
.ribbon{background:var(--dark);color:#E7EAEE;font-size:14px;padding:10px 24px;text-align:center}
.ribbon a{color:var(--dark-link);margin-left:8px;text-decoration:none;font-weight:500}
.site-header{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:16px;padding-top:20px;padding-bottom:20px}
.brand{font-family:var(--mono);font-size:26px;font-weight:500;color:var(--ink);text-decoration:none;letter-spacing:-.5px}
.brand:hover{color:var(--ink)}
.nav{display:flex;flex-wrap:wrap;gap:8px 28px;font-size:15px}
.nav a{color:var(--body);text-decoration:none}
.nav a:hover{color:var(--ink)}
.nav a[aria-current="page"]{color:var(--ink);font-weight:600}
.header-actions{display:flex;gap:10px;flex-wrap:wrap}

/* Buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:0 18px;border-radius:10px;border:1px solid #D5D9DF;color:var(--ink);text-decoration:none;font-weight:600;font-size:15px;background:var(--bg);cursor:pointer;font-family:inherit}
.btn:hover{border-color:#AEB4BC;color:var(--ink)}
.btn--primary{background:var(--accent);border-color:var(--accent);color:#FFFFFF}
.btn--primary:hover{background:#086247;border-color:#086247;color:#FFFFFF}
.btn--lg{min-height:52px;padding:0 24px;border-radius:12px;font-size:17px}
.btn--block{width:100%;min-height:48px;border-radius:12px}
.btn--light{background:#FFFFFF;border-color:#FFFFFF;color:var(--ink)}
.btn--on-dark{border-color:#3A414B;color:var(--dark-ink);background:transparent}
.btn--on-dark:hover{border-color:#6B7380;color:#FFFFFF}
.btn-row{display:flex;flex-wrap:wrap;gap:12px;align-items:center}

/* Type */
.pill{display:inline-flex;align-items:center;gap:8px;background:var(--accent-soft);color:var(--accent-soft-ink);font-weight:600;font-size:14px;padding:6px 12px;border-radius:999px}
.pill--info{background:var(--info-soft);color:var(--info-ink)}
.display{font-family:var(--display);font-weight:800;font-size:76px;line-height:1.0;letter-spacing:-2.5px;margin:22px 0}
.lede{font-size:21px;line-height:1.5;color:var(--body);margin:0 0 32px;max-width:600px}
.eyebrow{color:var(--accent-ink);font-weight:600;font-size:15px}
.h2{font-family:var(--display);font-weight:700;font-size:48px;line-height:1.08;letter-spacing:-1.2px;margin:10px 0 16px}
.h2--xl{font-weight:800;font-size:56px;letter-spacing:-1.6px}
.section-lede{font-size:19px;color:var(--body);margin:0}
.section-head{max-width:760px}
.small{font-size:14px;color:var(--muted)}

/* Sections */
.section{padding-top:112px;padding-bottom:112px}
.band{background:var(--bg-soft);border-top:1px solid var(--line-soft);border-bottom:1px solid var(--line-soft)}
.band--tint{background:var(--bg-tint);border:0}
.band--dark{background:var(--dark);color:var(--dark-ink)}
.band--dark .eyebrow{color:var(--dark-link)}
.band--dark .section-lede{color:var(--dark-muted)}
.band--dark a{color:var(--dark-link)}
.band--dark .btn--light,.band--dark .btn--light:hover{color:var(--ink)}
.band--dark .btn--on-dark,.band--dark .btn--on-dark:hover{color:var(--dark-ink)}
.band--dark .btn--primary,.band--dark .btn--primary:hover{color:#FFFFFF}

/* Hero */
.hero{display:flex;flex-wrap:wrap;gap:56px;align-items:center;padding-top:72px;padding-bottom:88px}
.hero__copy{flex:1 1 520px;min-width:0}
.hero__visual{flex:1 1 440px;min-width:0;display:flex;justify-content:center}
.checks{display:flex;flex-wrap:wrap;gap:12px 20px;margin:28px 0 0;padding:0;list-style:none;font-size:15px;color:var(--muted)}
.checks li{display:inline-flex;align-items:center;gap:8px}
.callout-link{display:inline-flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:28px;padding:10px 14px;border:1px solid var(--line);border-radius:12px;color:var(--ink);text-decoration:none;font-size:15px}
.callout-link:hover{border-color:#AEB4BC;color:var(--ink)}
.callout-link strong{color:var(--accent-ink)}
.tag{background:var(--info-soft);color:var(--info-ink);font-weight:600;font-size:13px;padding:2px 8px;border-radius:999px}

/* Certificate card (hero visual) */
.cert{width:100%;max-width:500px;background:var(--bg);border:1px solid var(--line);border-radius:20px;box-shadow:0 1px 2px rgba(14,17,22,.06),0 24px 48px -24px rgba(14,17,22,.25);overflow:hidden}
.cert__head{padding:20px 24px;border-bottom:1px solid var(--line-soft);display:flex;justify-content:space-between;align-items:center;gap:12px}
.cert__label{font-size:13px;color:var(--muted);font-weight:500}
.cert__repo{font-family:var(--mono);font-size:15px;margin-top:2px}
.cert__rows{padding:8px 24px;margin:0;list-style:none}
.cert__row{display:flex;gap:14px;padding:16px 0;border-bottom:1px solid var(--line-soft)}
.cert__row:last-child{border-bottom:0}
.cert__row b{display:block;font-weight:600}
.cert__row span{font-size:15px;color:var(--muted)}
.icon{flex:none;width:36px;height:36px;border-radius:10px;display:flex;align-items:center;justify-content:center}
.icon--ok{background:var(--accent-soft)}
.icon--warn{background:var(--warn-soft)}
.icon--info{background:var(--info-soft)}

/* Commands */
.cmd{display:flex;align-items:center;justify-content:space-between;gap:12px;background:var(--dark);color:#E7EAEE;font-family:var(--mono);font-size:14px;padding:14px 16px;border-radius:10px;overflow-x:auto}
.cmd--flush{border-radius:0;padding:16px 24px}
.cmd > span{white-space:nowrap}
.cmd .dollar{color:var(--dark-faint);margin-right:8px}
.cmd .copy{flex:none;font-family:var(--sans);font-size:13px;color:#E7EAEE;background:transparent;border:1px solid #3A414B;border-radius:8px;padding:4px 10px;cursor:pointer;min-height:32px}
.cmd .copy:hover{border-color:#6B7380}

/* Runs-where strip */
.strip{display:flex;flex-wrap:wrap;gap:12px 36px;align-items:center;justify-content:center;color:var(--muted);font-size:15px;padding-top:28px;padding-bottom:28px;margin:0;list-style:none}
.strip__title{font-weight:600;color:var(--ink)}

/* Grids and cards */
.grid{display:grid;gap:24px;margin-top:48px}
.grid--3{grid-template-columns:repeat(auto-fit,minmax(280px,1fr))}
.grid--2{grid-template-columns:repeat(auto-fit,minmax(340px,1fr))}
.grid--5{grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:20px}
.grid--4{grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:16px;margin-top:44px}
.card{border:1px solid var(--line);border-radius:16px;padding:28px;background:var(--bg)}
.card h3{font-size:21px;margin:18px 0 8px}
.card p{margin:0;color:var(--muted)}
.card--accent{border:2px solid var(--accent)}
.step-num{font-family:var(--display);font-size:40px;font-weight:800;color:var(--accent);line-height:1}
.grid--5 .step-num{font-size:34px}
.grid--5 .card{padding:24px}
.grid--5 .card h3{font-size:19px;margin:16px 0 6px}
.grid--5 .card p{font-size:15px}
.fact{border-top:3px solid var(--accent);padding-top:16px}
.fact b{display:block;font-family:var(--display);font-size:44px;font-weight:800;line-height:1}
.fact span{display:block;color:var(--muted);font-size:15px;margin-top:6px}

/* Dark stats */
.stat{background:var(--dark-card);border:1px solid var(--dark-line);border-radius:16px;padding:32px}
.stat h3{font-family:var(--display);font-size:44px;font-weight:800;line-height:1.05;color:#FFFFFF;margin:0}
.stat p{margin:18px 0 14px;color:var(--dark-body)}
.stat .fine{font-size:14px;color:var(--dark-faint);margin:0 0 14px}
.stat a{text-decoration:none;font-weight:500}

/* Experiment cards */
.exp{border:1px solid var(--line);border-radius:20px;padding:36px;display:flex;flex-direction:column;gap:16px;background:var(--bg)}
.exp__meta{display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;font-size:14px;color:var(--muted)}
.exp__meta b{color:var(--ink);font-weight:600}
.exp__title{font-family:var(--display);font-size:32px;font-weight:700;line-height:1.12;letter-spacing:-.6px;margin:0}
.exp p{margin:0;color:var(--muted)}
.exp__link{margin-top:auto;text-decoration:none;font-weight:600}
.note{background:var(--bg-soft);border-radius:12px;padding:14px 16px;font-size:15px;color:var(--body)}
.note--warn{background:var(--warn-soft);color:var(--warn-ink)}
.chips{display:flex;flex-wrap:wrap;gap:8px}
.chip{background:var(--bg-soft);border:1px solid var(--line);border-radius:999px;padding:4px 12px;font-size:14px}
.foot-row{display:flex;flex-wrap:wrap;gap:16px;justify-content:space-between;align-items:center;margin-top:28px}

/* Experiment list rows (/experiments/) */
.exp-list{display:flex;flex-direction:column;gap:20px;padding-bottom:104px}
.exp-row{display:flex;flex-wrap:wrap;gap:24px 40px;border:1px solid var(--line);border-radius:20px;padding:32px 36px;color:var(--ink);text-decoration:none;background:var(--bg)}
.exp-row:hover{border-color:#AEB4BC;color:var(--ink)}
.exp-row--self{background:#F6FBF8}
.exp-row__who{flex:0 0 180px;font-size:14px;color:var(--muted)}
.exp-row__who b{display:block;font-size:17px;color:var(--ink);font-weight:600;margin-top:4px}
.exp-row__body{flex:1 1 520px;min-width:0}
.exp-row__title{font-family:var(--display);font-size:30px;font-weight:700;line-height:1.15;letter-spacing:-.5px;margin:0}
.exp-row__body p{margin:12px 0 0;color:var(--muted)}
.exp-row__body .note,.exp-row__body .chips{margin-top:14px}
.exp-row__go{flex:0 0 auto;align-self:center;color:var(--accent-ink);font-weight:600}
.principles{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:16px;padding-bottom:56px}
.principle{background:var(--bg-soft);border-radius:14px;padding:20px 22px}
.principle b{display:block}
.principle span{display:block;font-size:15px;color:var(--muted);margin-top:4px}

/* Offers */
.offer{background:var(--bg);border:1px solid var(--line);border-radius:20px;padding:32px;display:flex;flex-direction:column;gap:14px}
.offer--featured{border:2px solid var(--accent)}
.offer__kicker{display:flex;justify-content:space-between;gap:12px;align-items:center;font-weight:600;color:var(--muted);font-size:15px}
.offer__title{font-family:var(--display);font-size:30px;font-weight:700;margin:0}
.offer p{margin:0;color:var(--muted)}
.offer .btn,.offer .cmd{margin-top:auto}
.offer__more{font-size:14px;text-align:center;text-decoration:none}

/* Demo */
.demo{display:flex;flex-wrap:wrap;gap:40px;align-items:center}
.demo__copy{flex:1 1 360px;min-width:0}
.demo__media{flex:1 1 560px;min-width:0;position:relative;border-radius:16px;overflow:hidden;background:#000;border:1px solid var(--line)}
.demo__media video{display:block;width:100%;height:auto}
.demo__play{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%)}
.demo__play[hidden]{display:none}

/* Latest (generated notes strip) */
.latest{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px 56px;margin-top:32px;align-items:start}
.latest > .notes-strip__list,.latest > .notes-strip__all{grid-column:1}
.latest > .notes-strip__posts{grid-column:2;grid-row:1 / span 2}
.notes-strip__list{list-style:none;margin:0;padding:0}
.notes-strip__item{border-bottom:1px solid var(--line-soft)}
.notes-strip__item a{display:block;padding:12px 0;color:var(--ink);text-decoration:none;font-size:15px}
.notes-strip__item a:hover{color:var(--accent-ink)}
.notes-strip__date{color:var(--muted);font-variant-numeric:tabular-nums}
.notes-strip__all{margin:14px 0 0;font-size:15px}
.notes-strip__all a{text-decoration:none;font-weight:600}
.notes-strip__posts h3{font-size:15px;margin:0 0 4px;color:var(--muted);font-weight:600}
.shadcn-badge{display:inline-block;background:var(--bg-soft);border:1px solid var(--line);border-radius:999px;padding:0 8px;font-size:12.5px;color:var(--body)}

/* Dark two-column (Instrument Review) */
.split{display:grid;grid-template-columns:repeat(auto-fit,minmax(320px,1fr));gap:48px}
.tile{display:block;background:var(--dark-card);border:1px solid var(--dark-line);border-radius:14px;padding:20px 22px;color:var(--dark-ink);text-decoration:none}
.tile b{display:block;color:var(--dark-ink)}
.tile span{display:block;color:var(--dark-muted);font-size:15px;margin-top:4px}
.tile--link span{color:var(--dark-link)}
.stack{display:flex;flex-direction:column;gap:14px}
.flow{width:100%;max-width:440px;display:flex;flex-direction:column;gap:12px}
.flow__step{border:1px solid var(--line);border-radius:16px;padding:20px 22px;display:flex;gap:14px;align-items:center}
.flow__step--end{border:2px solid var(--accent);background:#F6FBF8}
.flow__step b{display:block}
.flow__step span{font-size:15px;color:var(--muted)}

/* Close and footer */
.close{text-align:center}
.close .h2{max-width:800px;margin:0 auto 18px}
.close p{font-size:20px;color:var(--body);margin:0 auto 32px;max-width:600px}
.close .btn-row{justify-content:center}
.cta-band{display:flex;flex-wrap:wrap;gap:32px;align-items:center;justify-content:space-between;padding-top:96px;padding-bottom:96px}
.cta-band__copy{flex:1 1 520px;min-width:0}
.cta-band .h2{font-size:44px;margin:0 0 12px}
.site-footer{border-top:1px solid var(--line-soft)}
.site-footer .wrap{display:flex;flex-wrap:wrap;gap:24px;justify-content:space-between;align-items:flex-start;padding-top:40px;padding-bottom:40px;font-size:14px;color:var(--muted)}
.site-footer nav{display:flex;flex-wrap:wrap;gap:12px 20px}
.site-footer nav a{color:var(--muted);text-decoration:none}
.site-footer nav a:hover{color:var(--ink)}
.site-footer .legal{width:100%;font-size:13px;color:var(--faint)}
.foot-brand{font-family:var(--mono);font-size:20px;color:var(--ink)}

@media (max-width:720px){
  .display{font-size:48px;letter-spacing:-1.4px}
  .h2,.cta-band .h2{font-size:36px;letter-spacing:-.8px}
  .h2--xl{font-size:40px}
  .lede{font-size:19px}
  .section{padding-top:72px;padding-bottom:72px}
  .hero{padding-top:40px;padding-bottom:56px;gap:40px}
  .exp,.exp-row,.offer{padding:24px}
  .exp__title,.exp-row__title{font-size:26px}
  .stat h3{font-size:36px}
  .grid--2{grid-template-columns:1fr}
  .exp-row__who{flex-basis:100%}
  .latest{grid-template-columns:1fr}
  .latest > .notes-strip__posts{grid-column:1;grid-row:auto;margin-top:24px}
}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}