/* =============================================================================
   AssayBase — landing page stylesheet (lp-rebuild).
   This file controls how the page looks: colours, fonts, spacing, the layout of
   every section. It does not decide what text is on the page — that comes from
   index.template.html. Colours, fonts and spacing come from tokens.css; shared
   pieces (buttons, cells, charts) come from components.css. What is left here is
   only the landing page's own sections, top-to-bottom, then the responsive rules.
   ========================================================================== */

/* Colours, fonts and spacing all come from tokens.css, which every page links
   BEFORE this file. There is deliberately no :root block and no raw colour here:
   tools/design_lint.py fails the build if one appears. */

*{box-sizing:border-box}
html{scroll-behavior:smooth;background:var(--black)}
body{margin:0;background:var(--black);color:var(--text);font-family:var(--sans);font-size:15px;line-height:1.6;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
button,input,textarea{font:inherit}
img{max-width:100%;display:block}
h1,h2,h3,p{margin-top:0}
:focus-visible{outline:2px solid var(--mint);outline-offset:4px}
.grid-surface{background-color:var(--ink);background-image:linear-gradient(var(--grid-texture) 1px,transparent 1px),linear-gradient(90deg,var(--grid-texture) 1px,transparent 1px);background-size:40px 40px}
.section{padding:112px max(5vw,32px);border-bottom:1px solid var(--line);position:relative;overflow:hidden}
.section-title{display:grid;grid-template-columns:110px minmax(0,1fr);gap:28px;align-items:start;max-width:1440px;margin:0 auto 66px}
.section-title>span{font:600 11px/1 var(--mono);color:var(--mint);letter-spacing:.12em;padding-top:12px}
.section-title h2{font:600 clamp(42px,6vw,82px)/.94 var(--display);letter-spacing:-.06em;max-width:1100px;margin:0}
.section-lead{max-width:1330px;margin:-40px auto 54px;padding-left:138px;font-size:18px;color:var(--muted)}

/* navigation
   The header lives in components.css now: every page carries the same two-tier
   header (site nav on top, page nav beneath), so it is a shared component and
   not a landing-page section. Nothing about it is written here any more. */
.footer-signal i{display:inline-block;width:7px;height:7px;border-radius:50%;background:var(--mint);margin-right:9px;box-shadow:var(--glow-dot);animation:pulse 2.8s ease-in-out infinite}

/* hero */
.hero{min-height:750px;display:grid;grid-template-columns:1.08fr .92fr;border-bottom:1px solid var(--line)}
.hero-copy{padding:88px max(5vw,50px) 76px;border-right:1px solid var(--line);display:flex;flex-direction:column;justify-content:center}
.signal-label{font:500 10px/1.5 var(--mono);letter-spacing:.08em;color:var(--mint);max-width:690px;margin:0 0 34px}
.hero h1{font:600 clamp(58px,7vw,108px)/.88 var(--display);letter-spacing:-.07em;max-width:970px;margin:0 0 30px}
.hero-sub{font-size:clamp(16px,1.4vw,20px);line-height:1.55;color:var(--muted);max-width:760px;margin:0 0 28px}.hero-pitch{font-weight:650;margin:0 0 26px}.hero-actions{display:flex;gap:10px;flex-wrap:wrap}.hero-actions a{padding:14px 18px;border:1px solid var(--line-strong);font:600 11px/1 var(--mono);transition:.2s}.hero-actions a.primary{background:var(--mint);color:var(--black);border-color:var(--mint)}.hero-actions a:hover{border-color:var(--mint);color:var(--mint)}.hero-actions a.primary:hover{background:var(--mint-pale);color:var(--black)}
.signal-orbit{position:relative;min-height:620px;overflow:hidden;background:radial-gradient(circle at center,var(--hero-glow),transparent 55%)}.orbit-ring{position:absolute;left:50%;top:50%;border:1px solid var(--line);border-radius:50%;transform:translate(-50%,-50%)}.ring-a{width:210px;height:210px}.ring-b{width:390px;height:390px}.ring-c{width:590px;height:590px;animation:orbit-breathe 7s ease-in-out infinite}.orbit-cross{position:absolute;background:var(--line)}.orbit-cross.horizontal{height:1px;left:9%;right:9%;top:50%}.orbit-cross.vertical{width:1px;top:9%;bottom:9%;left:50%}.orbit-core{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);width:176px;height:176px;border-radius:50%;background:var(--mint);color:var(--black);display:flex;flex-direction:column;align-items:center;justify-content:center;box-shadow:var(--glow-orbit)}.orbit-core strong{font:650 48px/1 var(--display);letter-spacing:-.055em}.orbit-core span{font:700 8px/1 var(--mono);letter-spacing:.12em;margin-top:8px}.orbit-tag{position:absolute;background:var(--panel);border:1px solid var(--line);color:var(--mint-pale);padding:9px 11px;font:600 8px/1 var(--mono);letter-spacing:.08em}.tag-a{left:10%;top:22%}.tag-b{right:9%;top:34%}.tag-c{left:16%;bottom:17%}

/* updates */
.updates{min-height:280px;display:grid;grid-template-columns:110px minmax(0,1.5fr) minmax(280px,.5fr);gap:28px;padding:68px max(5vw,32px);background:var(--mint);color:var(--black)}.update-index{display:flex;flex-direction:column;justify-content:space-between;font:700 11px var(--mono)}.update-index i{height:50px;width:1px;background:var(--black);opacity:.35}.updates-main h2{font:600 clamp(30px,4vw,56px)/1 var(--display);letter-spacing:-.05em;margin:0 0 23px;max-width:1000px}.updates-main h2 em{font-style:normal;background:var(--black);color:var(--mint);padding:0 .12em}.updates-main p,.updates-proof p{margin:0;line-height:1.55}.updates-proof{border-left:1px solid var(--on-mint-rule);padding-left:28px;display:flex;flex-direction:column;justify-content:space-between}.updates-proof p{font-weight:600}.updates-proof em{font:500 10px var(--mono);font-style:normal;opacity:.68}

/* fields */
.fields-stack{max-width:1440px;margin:0 auto;border-top:1px solid var(--line)}.field-group{display:grid;grid-template-columns:340px minmax(0,1fr);border-bottom:1px solid var(--line);min-height:210px}.field-group header{padding:30px 26px 30px 0;border-right:1px solid var(--line);position:relative}.field-group header span{font:600 9px var(--mono);color:var(--mint)}.field-group h3{font:600 30px/1 var(--display);letter-spacing:-.04em;margin:55px 0 0}.field-group header i{position:absolute;width:8px;height:8px;background:var(--mint);right:-4px;top:28px}.field-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr))}.field-list p{margin:0;padding:27px 30px;border-right:1px solid var(--line-soft);border-bottom:1px solid var(--line-soft);color:var(--muted);line-height:1.65}.field-list p:nth-child(even){border-right:0}.field-list strong{color:var(--text)}

/* trust */
.trust{background:var(--paper);color:var(--black)}.trust .section-title>span{color:var(--accent-on-light)}.trust-grid{max-width:1440px;margin:0 auto;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));border-top:1px solid var(--paper-line);border-left:1px solid var(--paper-line)}.trust-grid article{padding:32px;min-height:330px;border-right:1px solid var(--paper-line);border-bottom:1px solid var(--paper-line);position:relative;display:flex;flex-direction:column}.trust-grid article>span{font:600 10px var(--mono);color:var(--accent-on-light)}.trust-grid h3{font:600 35px/1 var(--display);letter-spacing:-.04em;margin:50px 0 22px}.trust-grid p{max-width:570px;font-size:16px;line-height:1.65;color:var(--body-on-light);margin:0}.trust-grid article i{font:600 clamp(46px,7vw,95px)/1 var(--display);font-style:normal;letter-spacing:-.07em;color:var(--paper-numeral);position:absolute;right:20px;bottom:6px}.trust-close{max-width:1440px;margin:28px auto 0;padding:22px 26px;background:var(--black);border-left:6px solid var(--mint);color:var(--text);font:650 clamp(16px,1.5vw,20px)/1.4 var(--mono);box-shadow:var(--shadow-lift)}.trust-close:before{content:"";display:inline-block;width:8px;height:8px;margin:0 14px 2px 0;border-radius:50%;background:var(--mint);box-shadow:var(--glow-dot)}

/* ask */
.query-console{max-width:1180px;margin:0 auto;border:1px solid var(--line);background:var(--ink);box-shadow:var(--shadow-pop)}.query-console header{height:48px;display:flex;align-items:center;padding:0 18px;border-bottom:1px solid var(--line)}.query-console header span{margin-right:auto;font:600 9px var(--mono);color:var(--muted)}.query-console header i{width:7px;height:7px;border:1px solid var(--line-strong);border-radius:50%;margin-left:8px}.query-console blockquote{margin:0;display:grid;grid-template-columns:90px 1fr;border-bottom:1px solid var(--line)}.query-console blockquote>span{padding:29px;font:600 9px var(--mono);color:var(--mint);border-right:1px solid var(--line)}.query-console blockquote p{font:500 clamp(15px,1.5vw,20px)/1.55 var(--mono);color:var(--muted);margin:0;padding:26px 30px}.query-console footer{padding:24px 30px 24px 120px;background:var(--mint);color:var(--black);font:750 clamp(17px,1.8vw,23px)/1.3 var(--mono);letter-spacing:-.025em;display:flex;align-items:center;gap:20px;flex-wrap:wrap}.query-console footer:before{content:"→";display:inline-block;margin-right:16px;font-weight:400}.console-cta{margin-left:auto;flex-shrink:0;background:var(--black);color:var(--mint);border:1px solid var(--black);padding:13px 20px;font:600 11px/1 var(--mono);letter-spacing:.04em;text-decoration:none;white-space:nowrap;transition:.2s}.console-cta:hover{background:var(--ink)}

/* buyers */
.buyers{background:var(--panel)}.buyers-grid{max-width:1440px;margin:0 auto;display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--line);border-left:1px solid var(--line)}.buyers-grid article{min-height:330px;padding:28px;display:flex;flex-direction:column;border-right:1px solid var(--line);border-bottom:1px solid var(--line);transition:.25s;background:var(--panel)}.buyers-grid article:hover{background:var(--panel-3);transform:translateY(-5px)}.buyers-grid span{font:600 9px var(--mono);color:var(--mint)}.buyers-grid h3{font:600 30px/1 var(--display);letter-spacing:-.04em;margin:auto 0 20px}.buyers-grid p{color:var(--muted);line-height:1.6;margin:0}

/* pricing */
.pricing-layout{max-width:1440px;margin:0 auto;display:grid;grid-template-columns:1.15fr .85fr;gap:24px}.price-card,.pricing-how,.delta-card{border:1px solid var(--line);background:var(--panel-veil)}.price-card{grid-row:span 2}.price-card article{padding:30px;display:grid;grid-template-columns:60px 220px 1fr;gap:24px;border-bottom:1px solid var(--line);min-height:180px}.price-card article span,.delta-card>span{font:600 9px var(--mono);color:var(--mint)}.price-card h3,.pricing-how h3,.delta-card h3{font:600 27px/1 var(--display);letter-spacing:-.04em;margin:0}.price-card article p{color:var(--muted);margin:0;line-height:1.65}.price-examples{display:grid;grid-template-columns:repeat(2,1fr)}.price-examples p{margin:0;padding:26px 30px;font:500 12px/1.6 var(--mono);color:var(--muted);border-right:1px solid var(--line)}.price-examples p:last-child{border-right:0}.price-examples strong{color:var(--mint)}.pricing-how{padding:30px}.pricing-how h3{margin-bottom:26px}.pricing-how ol{list-style:none;margin:0 0 26px;padding:0;border-top:1px solid var(--line)}.pricing-how li{padding:14px 0;border-bottom:1px solid var(--line);font-weight:600}.pricing-how li span{display:inline-block;width:50px;font:600 9px var(--mono);color:var(--mint)}.pricing-how>p,.delta-card p{color:var(--muted);line-height:1.65;margin:0}.delta-card{padding:28px;position:relative}.delta-card h3{margin:45px 0 16px}.delta-card p+p{margin-top:10px;color:var(--mint)}
.delta-form{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}.delta-form input{flex:1;min-width:0;border:1px solid var(--line);background:var(--ink);color:var(--text);padding:12px 14px;font-size:13px}.delta-form input::placeholder{color:var(--muted-2)}.delta-form button{border:1px solid var(--mint);background:var(--mint);color:var(--black);padding:12px 18px;font:600 11px var(--mono);white-space:nowrap}.delta-form .form-status{color:var(--mint)}.delta-form .form-status.is-error{color:var(--error)}

/* sample */
.sample{background:var(--mint);color:var(--black);display:grid;grid-template-columns:1fr 1fr;align-items:end;gap:70px}.sample>div{max-width:700px}.sample>div>span,.request-copy>span{font:700 10px var(--mono)}.sample h2{font:600 clamp(46px,6vw,84px)/.92 var(--display);letter-spacing:-.06em;margin:42px 0 18px}.sample>div p{font-size:18px;margin:0}.sample-form{display:flex;flex-wrap:wrap}.sample-form input{flex:1;min-width:0;padding:18px 20px;border:1px solid var(--black);background:var(--input-on-mint);color:var(--black)}.sample-form button{padding:18px 28px;border:1px solid var(--black);background:var(--black);color:var(--mint);font:600 11px var(--mono)}.sample-form :disabled,.request-form :disabled{opacity:1;cursor:not-allowed}.sample-form input::placeholder{color:var(--placeholder-on-mint)}

/* forms: the robot trap and the one-line answer under each form.
   .hp-field is a real text input that no person ever sees: it is taken out of the
   layout and parked far off-screen, skipped by the keyboard, and hidden from screen
   readers. Only an automated form-filler puts anything in it. Never display:none —
   the better robots know to skip those.
   .form-status is the line the page writes after a submit: the exact success
   sentence, or whatever the server said went wrong. */
.hp-field{position:absolute;left:-9999px;top:auto;width:1px;height:1px;overflow:hidden}
.form-status{flex:0 0 100%;width:100%;margin:14px 0 0;font:500 12px/1.5 var(--mono);min-height:1px}
.form-status:empty{margin:0}
.sample-form .form-status{color:var(--status-on-mint)}
.sample-form .form-status.is-error,.request-form .form-status.is-error{color:var(--error-on-light)}
.request-form .form-status{color:var(--mint)}
.request-form .form-status.is-error{color:var(--error)}

/* faq */
.faq-intro{max-width:1302px;margin:-43px auto 55px;padding-left:138px;color:var(--muted)}.faq-intro a{color:var(--mint)}.faq-list{max-width:1180px;margin:0 auto;border-top:1px solid var(--line)}.faq-list details{border-bottom:1px solid var(--line)}.faq-list summary{list-style:none;cursor:pointer;display:grid;grid-template-columns:80px 1fr 30px;gap:20px;align-items:center;padding:26px 0}.faq-list summary::-webkit-details-marker{display:none}.faq-list summary>span{font:600 9px var(--mono);color:var(--mint)}.faq-list summary h3{font:600 clamp(18px,2vw,25px)/1.25 var(--display);letter-spacing:-.025em;margin:0}.faq-list summary i{width:12px;height:12px;border-right:1px solid var(--mint);border-bottom:1px solid var(--mint);transform:rotate(45deg);transition:.2s}.faq-list details[open] summary i{transform:rotate(225deg)}.faq-list details>p{max-width:820px;padding:0 0 30px 100px;color:var(--muted);line-height:1.7;margin:0}

/* request */
.request{display:grid;grid-template-columns:1fr 1fr;gap:90px;align-items:start;background:var(--panel-2)}.request-copy h2{font:600 clamp(50px,6vw,90px)/.92 var(--display);letter-spacing:-.06em;margin:50px 0 22px;max-width:650px}.request-copy p{font-size:18px;color:var(--muted)}.request-form{display:flex;flex-direction:column;gap:12px;border:1px solid var(--line);padding:24px;background:var(--ink)}.request-form input,.request-form textarea{width:100%;border:1px solid var(--line-strong);background:var(--ink);color:var(--text);padding:17px 18px}.request-form textarea{resize:vertical;min-height:130px}.request-form button{align-self:flex-start;border:1px solid var(--mint);background:var(--mint);color:var(--black);padding:15px 24px;font:600 11px var(--mono)}.request-form input::placeholder,.request-form textarea::placeholder{color:var(--muted-2)}

/* footer */
.footer{padding:55px max(5vw,32px) 28px;background:var(--black)}.footer-signal{text-align:center;font:500 10px var(--mono);color:var(--muted);margin-bottom:28px}.footer-actions{display:flex;justify-content:center;gap:10px;margin-bottom:54px}.footer-actions a{padding:13px 18px;border:1px solid var(--line);font:600 10px var(--mono)}.footer-actions a:first-child{background:var(--mint);border-color:var(--mint);color:var(--black)}.footer-bottom{padding-top:25px;border-top:1px solid var(--line);display:flex;justify-content:space-between;gap:24px;color:var(--muted-2);font:500 10px var(--mono)}.footer-bottom>div,.footer-bottom p{display:flex;gap:22px;flex-wrap:wrap;margin:0}.footer-bottom a:hover{color:var(--mint)}

/* privacy */
.legal-shell{min-height:calc(100vh - 62px)}.legal{max-width:980px;margin:0 auto}.legal h1{font:600 clamp(64px,10vw,140px)/.85 var(--display);letter-spacing:-.075em;margin:0 0 70px}.legal p{max-width:790px;font-size:17px;line-height:1.75;color:var(--muted);margin:0 0 25px}.legal strong,.legal a{color:var(--text)}.legal a{border-bottom:1px solid var(--mint)}.legal .legal-meta{font:500 10px var(--mono);color:var(--mint);margin-top:50px}

@keyframes pulse{0%,100%{opacity:.55;box-shadow:var(--glow-dot-lo)}50%{opacity:1;box-shadow:var(--glow-dot-hi)}}
@keyframes orbit-breathe{0%,100%{transform:translate(-50%,-50%) scale(.97);opacity:.7}50%{transform:translate(-50%,-50%) scale(1.03);opacity:1}}

@media(max-width:1100px){
  .hero{grid-template-columns:1fr}.hero-copy{border-right:0;border-bottom:1px solid var(--line)}.signal-orbit{min-height:560px}
  .updates{grid-template-columns:70px 1fr}.updates-proof{grid-column:2;border-left:0;border-top:1px solid var(--on-mint-rule);padding:20px 0 0;gap:18px}
  .field-group{grid-template-columns:260px 1fr}.buyers-grid{grid-template-columns:repeat(2,1fr)}
  .pricing-layout{grid-template-columns:1fr}.price-card{grid-row:auto}.sample,.request{gap:45px}
}

@media(max-width:760px){
  .section{padding:76px 20px}.section-title{grid-template-columns:42px 1fr;gap:14px;margin-bottom:42px}.section-title h2{font-size:42px}.section-title>span{padding-top:6px}.section-lead,.faq-intro{padding-left:56px;margin-top:-24px;margin-bottom:38px}
  .hero{min-height:0}.hero-copy{padding:65px 20px 55px}.hero h1{font-size:57px}.hero-sub{font-size:16px}.signal-label{font-size:9px}.signal-orbit{min-height:430px}.ring-c{width:390px;height:390px}.ring-b{width:285px;height:285px}.ring-a{width:175px;height:175px}.orbit-core{width:142px;height:142px}.orbit-core strong{font-size:39px}.tag-a{left:4%;top:18%}.tag-b{right:3%;top:29%}.tag-c{left:8%;bottom:14%}
  .updates{grid-template-columns:38px 1fr;padding:48px 20px;gap:14px}.updates-main h2{font-size:34px}.updates-main p{font-size:13px}.updates-proof{grid-column:2}
  .field-group{grid-template-columns:1fr}.field-group header{border-right:0;border-bottom:1px solid var(--line);padding:24px 0}.field-group h3{margin:22px 0 0}.field-group header i{display:none}.field-list{grid-template-columns:1fr}.field-list p{padding:21px 0;border-right:0}.trust-grid{grid-template-columns:1fr}.trust-grid article{min-height:280px;padding:26px}.trust-grid h3{margin-top:35px}
  .query-console blockquote{grid-template-columns:45px 1fr}.query-console blockquote>span{padding:22px 13px}.query-console blockquote p{padding:21px 18px;font-size:13px}.query-console footer{padding:18px 18px 18px 63px}.console-cta{margin-left:0;width:100%;text-align:center}.buyers-grid{grid-template-columns:1fr}.buyers-grid article{min-height:240px}.price-card article{grid-template-columns:45px 1fr}.price-card article p{grid-column:2}.price-examples{grid-template-columns:1fr}.price-examples p{border-right:0;border-bottom:1px solid var(--line)}
  .sample,.request{grid-template-columns:1fr;gap:35px}.sample h2,.request-copy h2{font-size:52px;margin-top:35px}.sample-form{flex-direction:column}.sample-form input,.sample-form button{width:100%}.delta-form{flex-direction:column}.delta-form input,.delta-form button{width:100%}
  .faq-list summary{grid-template-columns:50px 1fr 18px;gap:10px}.faq-list details>p{padding-left:60px}.footer-bottom{flex-direction:column}.footer-bottom p{justify-content:space-between}.footer-actions{flex-direction:column}.footer-actions a{text-align:center}.legal h1{font-size:70px;margin-bottom:50px}.legal p{font-size:15px}
}

@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.footer-signal i,.ring-c{animation:none}}