/* ===========================================================
   AttesTorr — Design System
   Inter Tight (display) / Inter (body) / warm paper background
   Red #C5262C · Verdigris #40826D
=========================================================== */

@import url('https://fonts.googleapis.com/css2?family=Inter+Tight:wght@500;600;700;800&family=Inter:wght@400;500;600&display=swap');

:root{
  --paper:      #F7F2E9;
  --paper-2:    #EFE7D8;
  --ink:        #1C1A17;
  --ink-2:      #55504A;
  --line:       #DCD2BC;
  --red:        #C5262C;
  --red-ink:    #8E1B20;
  --verdigris:  #40826D;
  --verdigris-2:#2E5E50;
  --white:      #FFFFFF;

  --font-display: 'Inter Tight', ui-sans-serif, system-ui, sans-serif;
  --font-body: 'Inter', ui-sans-serif, system-ui, sans-serif;

  --shadow: 0 18px 40px rgba(28,26,23,.10);
  --radius: 4px;
  --shell: 1140px;
}

*{ box-sizing:border-box; }
html{ scroll-behavior:smooth; }
body{
  margin:0;
  font-family:var(--font-body);
  color:var(--ink);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{ font-family:var(--font-display); font-weight:700; line-height:1.08; margin:0 0 .4em; letter-spacing:-.01em; }
p{ margin:0 0 1em; color:var(--ink-2); line-height:1.6; }
a{ color:var(--red-ink); }
img,svg{ max-width:100%; display:block; }

.shell{ max-width:var(--shell); margin:0 auto; padding:0 28px; }

.eyebrow{
  font-family:var(--font-display);
  font-size:12.5px;
  font-weight:700;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:var(--red-ink);
  margin:0 0 12px;
}

/* ---------- Header ---------- */
.site-header{
  position:sticky; top:0; z-index:40;
  background:rgba(247,242,233,.92);
  backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line);
}
.nav-wrap{ display:flex; align-items:center; justify-content:space-between; height:76px; }
.brand{ display:flex; align-items:center; gap:10px; text-decoration:none; }
.brand-mark{
  width:30px; height:30px; border-radius:3px;
  background:var(--ink); color:var(--paper);
  display:grid; place-items:center;
  font-family:var(--font-display); font-weight:800; font-size:14px;
  transform:skew(-6deg);
}
.brand-word{ font-family:var(--font-display); font-weight:700; font-size:18px; color:var(--ink); letter-spacing:-.01em; }
.menu-toggle{
  display:none; border:1px solid var(--line); background:var(--white);
  font-family:var(--font-display); font-weight:600; font-size:13px;
  padding:8px 14px; border-radius:3px; cursor:pointer;
}
.primary-nav{ display:flex; align-items:center; gap:30px; }
.primary-nav a{
  font-family:var(--font-display); font-weight:600; font-size:14.5px;
  color:var(--ink-2); text-decoration:none; padding:6px 0;
  border-bottom:2px solid transparent;
}
.primary-nav a:hover, .primary-nav a.active{ color:var(--ink); border-bottom-color:var(--red); }
.primary-nav a.button{ color:var(--white); border-bottom:none; }

/* ---------- Buttons ---------- */
.button{
  display:inline-flex; align-items:center; gap:8px;
  background:var(--red); color:var(--white) !important;
  font-family:var(--font-display); font-weight:700; font-size:14.5px;
  padding:13px 22px; border-radius:3px; text-decoration:none;
  box-shadow:0 10px 24px rgba(197,38,44,.28);
  transition:transform .15s ease, box-shadow .15s ease;
}
.button:hover{ transform:translateY(-1px); box-shadow:0 14px 30px rgba(197,38,44,.34); }
.button-outline{
  background:transparent; color:var(--ink) !important;
  border:1.5px solid var(--ink); box-shadow:none;
}
.button-outline:hover{ background:var(--ink); color:var(--paper) !important; }
.button-verdigris{ background:var(--verdigris); box-shadow:0 10px 24px rgba(64,130,109,.28); }
.button-light{ background:var(--paper); color:var(--ink) !important; box-shadow:none; }
.button-light:hover{ background:var(--white); transform:translateY(-1px); }
.button-small{ padding:9px 16px; font-size:13.5px; }
.text-link{ font-family:var(--font-display); font-weight:600; font-size:14.5px; color:var(--ink); text-decoration:none; }
.text-link:hover{ color:var(--red-ink); }

/* ---------- Hero ---------- */
.hero{ padding:76px 0 40px; }
.hero-grid{ display:grid; grid-template-columns:1.05fr .95fr; gap:56px; align-items:center; }
.hero h1{ font-size:clamp(38px,5vw,58px); margin-bottom:.3em; }
.hero-deck{ font-size:18px; color:var(--ink-2); max-width:46ch; }
.hero-sub{ font-size:15px; }
.hero-actions{ display:flex; align-items:center; gap:22px; margin-top:26px; flex-wrap:wrap; }
.page-hero{ padding:56px 0 44px; border-bottom:1px solid var(--line); }
.page-hero h1{ font-size:clamp(32px,4.4vw,46px); }
.page-hero .hero-deck{ max-width:60ch; }

/* ---------- Boundary cube (signature element) ---------- */
.cube-wrap{ position:relative; display:flex; flex-direction:column; align-items:center; gap:18px; }
.cube-caption{ font-family:var(--font-display); font-size:13px; color:var(--ink-2); text-align:center; max-width:30ch; }
.cube-caption strong{ color:var(--ink); }

/* ---------- Sector marquee ---------- */
.marquee{
  border-top:1px solid var(--line); border-bottom:1px solid var(--line);
  background:var(--paper-2); overflow:hidden; padding:16px 0;
}
.marquee-track{
  display:flex; gap:52px; white-space:nowrap;
  animation:scroll 26s linear infinite;
  font-family:var(--font-display); font-weight:600; font-size:14px;
  letter-spacing:.04em; text-transform:uppercase; color:var(--ink-2);
}
.marquee-track span{ display:flex; align-items:center; gap:52px; }
.marquee-track i{ color:var(--red); font-style:normal; }
@keyframes scroll{ from{ transform:translateX(0); } to{ transform:translateX(-50%); } }

/* ---------- Sections ---------- */
.section{ padding:84px 0; }
.section-tight{ padding:56px 0; }
.section-ink{ background:var(--ink); color:var(--paper); }
.section-ink h2, .section-ink h3{ color:var(--paper); }
.section-ink p{ color:#CFC9BE; }
.section-ink .eyebrow{ color:#E39A9C; }
.section-verdigris{ background:var(--verdigris); color:var(--white); }
.section-verdigris h2{ color:var(--white); }
.section-verdigris p{ color:#DCEFE8; }
.section-verdigris .eyebrow{ color:#CFE9E0; }
.section-paper2{ background:var(--paper-2); }
.section-card{ background:var(--white); border:1px solid var(--line); border-radius:8px; }

.section-intro{ max-width:64ch; margin-bottom:44px; }
.section-intro.center{ margin-left:auto; margin-right:auto; text-align:center; }

.split-grid{ display:grid; grid-template-columns:.85fr 1.15fr; gap:56px; align-items:start; }
.body-large p{ font-size:17px; }
.pull-line{ font-family:var(--font-display); font-weight:700; font-size:20px; color:var(--ink); }

/* ---------- Feature grids ---------- */
.feature-grid{ display:grid; gap:24px; }
.four-up{ grid-template-columns:repeat(4,1fr); }
.three-up{ grid-template-columns:repeat(3,1fr); }
.two-up{ grid-template-columns:repeat(2,1fr); }
.feature-card, .plain-card{
  background:var(--white); border:1px solid var(--line); border-radius:6px;
  padding:26px 24px;
}
.feature-number{
  display:inline-block; font-family:var(--font-display); font-weight:800;
  font-size:13px; color:var(--white); background:var(--red);
  width:28px; height:28px; line-height:28px; text-align:center; border-radius:3px;
  margin-bottom:14px;
}
.feature-card h3, .plain-card h3{ font-size:18px; }
.feature-number.wide{width:auto;min-width:28px;padding:0 10px;font-size:12px;letter-spacing:.03em;}
.feature-card p, .plain-card p{ font-size:14.5px; margin-bottom:0; }

/* ---------- Architecture stack ---------- */
.architecture-panel{ display:grid; grid-template-columns:.9fr 1.1fr; gap:56px; align-items:center; }
.arch-column{ display:flex; flex-direction:column; gap:8px; }
.arch-label{ font-family:var(--font-display); font-size:12px; font-weight:700; letter-spacing:.1em; text-transform:uppercase; color:var(--ink-2); margin-bottom:6px; }
.arch-stack{ padding:16px 18px; border-radius:5px; font-family:var(--font-display); font-weight:700; font-size:15px; }
.arch-stack.muted{ background:var(--paper-2); color:var(--ink-2); border:1px solid var(--line); }
.arch-stack.primary{ background:var(--red); color:var(--white); box-shadow:0 12px 28px rgba(197,38,44,.28); }
.arch-caption{ margin-top:8px; font-size:12.5px; color:var(--ink-2); }
.principle-list{ display:flex; flex-direction:column; gap:16px; margin-top:22px; }
.principle-list div{ display:flex; flex-direction:column; gap:2px; padding-left:16px; border-left:3px solid var(--verdigris); }
.principle-list strong{ font-family:var(--font-display); font-size:15.5px; }
.principle-list span{ font-size:14px; color:var(--ink-2); }

/* ---------- Lifecycle strip ---------- */
.lifecycle-strip{
  display:flex; align-items:center; justify-content:center; gap:14px;
  margin-top:44px; padding-top:32px; border-top:1px solid var(--line);
  font-family:var(--font-display); font-weight:700; font-size:14px;
  letter-spacing:.06em; text-transform:uppercase; flex-wrap:wrap;
}
.lifecycle-strip span{ color:var(--ink); }
.lifecycle-strip i{ color:var(--red); font-style:normal; }

/* ---------- Evidence flow ---------- */
.evidence-flow{ display:flex; flex-wrap:wrap; align-items:center; gap:14px; }
.evidence-node{
  background:var(--white); border:1px solid var(--line); border-radius:5px;
  padding:14px 18px; font-family:var(--font-display); font-weight:700; font-size:14px;
  color:var(--ink);
}
.evidence-node.strong{ background:var(--verdigris); color:var(--white); border-color:var(--verdigris); }
.evidence-flow > span{ color:var(--red); font-weight:700; }

/* ---------- Case / sector grids ---------- */
.case-grid{ display:grid; grid-template-columns:repeat(4,1fr); gap:20px; margin-top:8px; }
.case-card{ background:var(--white); border:1px solid var(--line); border-radius:6px; padding:22px 20px; }
.case-card span{ font-family:var(--font-display); font-weight:800; color:var(--red); font-size:13px; }
.case-card h3{ font-size:16.5px; margin-top:8px; }
.case-card p{ font-size:13.5px; margin-bottom:0; }

/* ---------- Claim boundary box ---------- */
.claim-box{
  background:var(--paper-2); border-left:4px solid var(--red);
  padding:26px 28px; border-radius:0 6px 6px 0; font-size:15px;
}
.claim-box p{ color:var(--ink); margin-bottom:.6em; }
.claim-box p:last-child{ margin-bottom:0; }

/* ---------- FAQ ---------- */
.faq-list{ display:flex; flex-direction:column; gap:0; border-top:1px solid var(--line); }
.faq-item{ border-bottom:1px solid var(--line); padding:22px 0; }
.faq-item h3{ font-size:17px; margin-bottom:8px; }
.faq-item p{ font-size:15px; margin-bottom:0; }

/* ---------- Table ---------- */
.data-table{ width:100%; border-collapse:collapse; font-size:14.5px; }
.data-table th, .data-table td{ text-align:left; padding:12px 14px; border-bottom:1px solid var(--line); }
.data-table th{ font-family:var(--font-display); font-size:12.5px; text-transform:uppercase; letter-spacing:.06em; color:var(--ink-2); }

/* ---------- Timeline / resource list ---------- */
.resource-grid{ display:grid; grid-template-columns:repeat(3,1fr); gap:24px; }
.resource-card{
  background:var(--white); border:1px solid var(--line); border-radius:6px;
  padding:26px 24px; display:flex; flex-direction:column; gap:10px;
}
.resource-tag{ font-family:var(--font-display); font-weight:700; font-size:11.5px; letter-spacing:.08em; text-transform:uppercase; color:var(--verdigris-2); }
.resource-card h3{ font-size:18px; }
.resource-card p{ font-size:14px; margin-bottom:6px; }

/* ---------- Contact ---------- */
.contact-section{ padding:70px 0 96px; }
.contact-box{
  background:var(--ink); color:var(--paper);
  border-radius:10px; padding:64px; text-align:center;
}
.contact-box h2{ color:var(--paper); }
.contact-box p{ color:#CFC9BE; }
.contact-actions{ display:flex; align-items:center; justify-content:center; gap:24px; margin-top:24px; flex-wrap:wrap; }
.contact-actions span{ font-size:14px; color:#B7B0A4; }

/* ---------- Footer ---------- */
.site-footer{ background:var(--paper-2); border-top:1px solid var(--line); padding:56px 0 44px; }
.footer-grid{ display:grid; grid-template-columns:1.4fr 1fr 1fr; gap:32px; }
.footer-brand p{ font-size:14px; max-width:32ch; margin-top:10px; }
.footer-col h4{ font-family:var(--font-display); font-size:12.5px; text-transform:uppercase; letter-spacing:.08em; color:var(--ink-2); margin-bottom:14px; }
.footer-col a{ display:block; font-size:14px; color:var(--ink-2); text-decoration:none; margin-bottom:9px; }
.footer-col a:hover{ color:var(--red-ink); }
.footer-legal{ margin-top:36px; padding-top:24px; border-top:1px solid var(--line); font-size:12.5px; color:var(--ink-2); }
.footer-legal p{ font-size:12.5px; margin-bottom:6px; }

/* ---------- Reveal motion ---------- */
.reveal{ opacity:0; transform:translateY(14px); transition:opacity .6s ease, transform .6s ease; }
.reveal.visible{ opacity:1; transform:translateY(0); }
@media (prefers-reduced-motion: reduce){
  .reveal{ opacity:1; transform:none; transition:none; }
  .marquee-track{ animation:none; }
  html{ scroll-behavior:auto; }
}

/* ---------- Responsive ---------- */
@media (max-width: 900px){
  .hero-grid, .split-grid, .architecture-panel{ grid-template-columns:1fr; }
  .four-up, .three-up, .two-up, .case-grid, .resource-grid{ grid-template-columns:1fr 1fr; }
  .footer-grid{ grid-template-columns:1fr; }
}
@media (max-width: 640px){
  .menu-toggle{ display:block; }
  .primary-nav{
    position:absolute; top:76px; left:0; right:0;
    background:var(--paper); border-bottom:1px solid var(--line);
    flex-direction:column; align-items:flex-start; gap:0;
    padding:8px 28px 20px; display:none;
  }
  .primary-nav.open{ display:flex; }
  .primary-nav a{ width:100%; padding:12px 0; border-bottom:1px solid var(--line); }
  .primary-nav a.button{ margin-top:12px; text-align:center; justify-content:center; }
  .four-up, .three-up, .two-up, .case-grid, .resource-grid{ grid-template-columns:1fr; }
  .contact-box{ padding:40px 26px; }
}


/* ===== v7: integrated stack + long-form resources ===== */
.strong-line{font-family:var(--font-display);font-weight:700;color:var(--ink);font-size:18px;}
.hero-redo{padding-top:72px;}
.hero-stack{background:var(--white);border:1px solid var(--line);border-radius:10px;padding:18px;box-shadow:var(--shadow);display:flex;flex-direction:column;gap:8px;}
.frame-label{background:var(--paper-2);border:1px dashed var(--line);padding:12px 14px;border-radius:5px;font-family:var(--font-display);font-size:11px;font-weight:800;letter-spacing:.07em;text-transform:uppercase;color:var(--ink);}
.frame-label small{display:block;font-family:var(--font-body);font-weight:500;letter-spacing:0;text-transform:none;color:var(--ink-2);margin-top:3px;}
.mini-layer{display:grid;grid-template-columns:34px 1fr;gap:12px;align-items:center;background:var(--paper);border:1px solid var(--line);padding:12px;border-radius:5px;}
.mini-layer>span{width:30px;height:30px;display:grid;place-items:center;background:var(--ink);color:var(--paper);font-family:var(--font-display);font-weight:800;border-radius:3px;}
.mini-layer strong{display:block;font-family:var(--font-display);font-size:14px;line-height:1.2;}
.mini-layer small{display:block;color:var(--ink-2);font-size:11.5px;line-height:1.35;margin-top:3px;}
.mini-layer.anchor{background:var(--red);border-color:var(--red);color:var(--white);}
.mini-layer.anchor>span{background:var(--white);color:var(--red);width:auto;min-width:30px;padding:0 8px;font-size:12px;letter-spacing:.02em;}
.mini-layer.anchor small{color:#F5D6D7;}
.takeaway-box{margin-top:26px;background:var(--paper-2);border-left:4px solid var(--verdigris);padding:20px 22px;border-radius:0 5px 5px 0;color:var(--ink-2);line-height:1.55;}
.takeaway-box strong{color:var(--ink);font-family:var(--font-display);}
.light-pull{color:var(--paper)!important;}
.center-actions{display:flex;justify-content:center;align-items:center;gap:22px;flex-wrap:wrap;margin-top:32px;}
.lifecycle-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;}
.life-card{background:var(--white);border:1px solid var(--line);padding:24px 22px;border-radius:6px;}
.life-card>span{display:inline-block;background:var(--red);color:var(--white);font-family:var(--font-display);font-weight:800;font-size:12px;letter-spacing:.08em;padding:7px 9px;border-radius:3px;margin-bottom:12px;}
.life-card p{font-size:14px;margin:0;}
.dark-node{background:#2A2722!important;color:#F7F2E9!important;border-color:#3A362F!important;}
.stack-frame{border:2px solid var(--ink);border-radius:10px;padding:18px;background:var(--white);}
.stack-frame-title{font-family:var(--font-display);font-weight:800;font-size:13px;letter-spacing:.07em;text-transform:uppercase;padding:10px 12px 16px;border-bottom:1px solid var(--line);}
.stack-frame-title span{display:block;font-family:var(--font-body);font-weight:500;letter-spacing:0;text-transform:none;color:var(--ink-2);margin-top:4px;}
.canonical-stack{padding-top:16px;}
.canonical-layer{display:grid;grid-template-columns:52px 1fr;gap:16px;align-items:center;border:1px solid var(--line);border-radius:6px;padding:18px;background:var(--paper);}
.canonical-layer h3{font-size:17px;margin-bottom:4px;}
.canonical-layer p{font-size:13.5px;margin:0;}
.layer-num{width:44px;height:44px;display:grid;place-items:center;background:var(--ink);color:var(--paper);font-family:var(--font-display);font-weight:800;font-size:17px;border-radius:4px;}
.anchor-layer{background:var(--red);border-color:var(--red);}
.anchor-layer .layer-num{background:var(--white);color:var(--red);width:auto;min-width:44px;padding:0 12px;font-size:14px;letter-spacing:.02em;}
.anchor-layer h3{color:var(--white);}
.anchor-layer p{color:#F5D6D7;}
.dependency{text-align:center;color:var(--ink-2);font-family:var(--font-display);font-size:11px;text-transform:uppercase;letter-spacing:.08em;padding:6px 0;}
.principle-banner{background:var(--ink);color:var(--paper);padding:28px;border-radius:8px;margin-bottom:56px;display:grid;gap:9px;}
.principle-banner strong{font-family:var(--font-display);font-size:12px;letter-spacing:.12em;color:#E39A9C;}
.principle-banner span{font-family:var(--font-display);font-size:clamp(20px,2.4vw,30px);font-weight:700;line-height:1.15;}
.two-resource{grid-template-columns:repeat(2,1fr);}
.article-hero{padding:64px 28px 44px;border-bottom:1px solid var(--line);}
.article-hero h1{font-size:clamp(38px,5vw,58px);max-width:16ch;}
.article-kicker{margin-top:24px;display:inline-block;background:var(--ink);color:var(--paper);font-family:var(--font-display);font-weight:700;padding:12px 16px;border-radius:4px;}
.article-shell{max-width:900px;margin:0 auto;padding:64px 28px 96px;}
.article-body{font-size:17px;}
.article-body h2{font-size:30px;margin-top:2.1em;margin-bottom:.55em;}
.article-body h3{font-size:20px;margin-top:2em;}
.article-body p{font-size:17px;color:var(--ink-2);line-height:1.72;}
.article-body li{margin-bottom:10px;color:var(--ink-2);line-height:1.6;}
.article-callout{margin:30px 0;background:var(--paper-2);border-left:4px solid var(--red);padding:22px 24px;font-family:var(--font-display);font-weight:650;font-size:20px;line-height:1.35;color:var(--ink);}
.final-callout{background:var(--ink);color:var(--paper);border-left-color:var(--verdigris);}
.article-life{justify-content:flex-start;margin:28px 0;padding:22px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.principle-ol{padding-left:24px;}
.big-list{font-family:var(--font-display);font-size:19px;font-weight:650;}
.source-note{font-size:13px!important;border-top:1px solid var(--line);padding-top:18px;margin-top:42px!important;}
.table-wrap{overflow-x:auto;margin:24px 0 34px;}
@media (max-width:900px){.lifecycle-cards{grid-template-columns:1fr 1fr}.two-resource{grid-template-columns:1fr}.hero-stack{margin-top:6px}}
@media (max-width:640px){.lifecycle-cards{grid-template-columns:1fr}.canonical-layer{grid-template-columns:42px 1fr}.layer-num{width:36px;height:36px}.article-shell{padding-left:22px;padding-right:22px}.article-body{font-size:16px}.article-body p{font-size:16px}}