/* PepMate research hub — shared design system (matches index.html / learn.html) */
:root{
  --bg:#FFFDF5; --ink:#111111; --card:#FFFFFF;
  --yellow:#FFE24A; --cyan:#6EE7FF; --pink:#FF7EB6; --coral:#FF6B5E;
  --chip:#FFF7D6; --muted:#57564A; --line:#111111;
  --shadow:5px 5px 0 #111111; --shadow-sm:3px 3px 0 #111111; --shadow-lg:9px 9px 0 #111111;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:'Oxanium',system-ui,sans-serif;
  background:repeating-linear-gradient(45deg,#F4F1E4,#F4F1E4 22px,#EFEBDB 22px,#EFEBDB 44px);
  color:var(--ink);line-height:1.45;overflow-x:hidden;
}
.wrap{max-width:1200px;margin:0 auto;padding:0 24px}
a{color:inherit;text-decoration:none}
img{max-width:100%}

.eyebrow{display:inline-block;background:var(--ink);color:#fff;font-weight:900;font-size:12px;
  letter-spacing:1.4px;text-transform:uppercase;padding:6px 13px;border-radius:8px}
.sec-title{font-weight:900;font-size:clamp(30px,5vw,46px);letter-spacing:-1.2px;line-height:1.04;margin:18px 0 10px}
.sec-sub{color:var(--muted);font-weight:700;font-size:16px;max-width:620px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;font-family:inherit;
  font-weight:900;font-size:15px;border:2.5px solid var(--ink);border-radius:13px;height:54px;
  padding:0 24px;cursor:pointer;transition:transform .08s ease, box-shadow .08s ease}
.btn:hover{transform:translate(-1px,-1px)}
.btn:active{transform:translate(2px,2px)!important}
.btn-primary{background:var(--yellow);box-shadow:var(--shadow)}
.btn-primary:active{box-shadow:var(--shadow-sm)}
.btn-dark{background:var(--ink);color:#fff;box-shadow:var(--shadow)}
.btn-dark:active{box-shadow:var(--shadow-sm)}
.btn-ghost{background:#fff;box-shadow:var(--shadow)}
.btn-ghost:active{box-shadow:var(--shadow-sm)}

nav{position:sticky;top:0;z-index:50;background:var(--bg);border-bottom:3px solid var(--ink)}
nav .wrap{display:flex;align-items:center;justify-content:space-between;height:72px}
.brand{display:flex;align-items:center;gap:11px;font-weight:900;font-size:23px;letter-spacing:-.5px}
.brand .logo{width:44px;height:44px;border:2.5px solid var(--ink);border-radius:12px;overflow:hidden;
  display:grid;place-items:center;box-shadow:var(--shadow-sm);background:var(--card)}
.brand .logo img{width:100%;height:100%;object-fit:cover;display:block}
.nav-links{display:flex;align-items:center;gap:30px;font-weight:800;font-size:16.5px}
.nav-links a:not(.btn){padding:4px 0;border-bottom:2.5px solid transparent}
.nav-links a:not(.btn):hover{border-bottom-color:var(--ink)}
.nav-links a.active{border-bottom-color:var(--ink)}
.nav-links .btn{height:46px;font-size:15px;padding:0 20px}
@media(max-width:760px){.nav-links a:not(.btn){display:none}}

.page-head{padding:56px 0 30px}
.page-head h1{font-weight:900;font-size:clamp(30px,5vw,50px);letter-spacing:-1.6px;line-height:1.04;margin:16px 0 12px}
.page-head .sub{color:var(--muted);font-weight:700;font-size:16.5px;max-width:720px}
.crumbs{font-weight:800;font-size:13px;color:var(--muted);margin-bottom:16px}
.crumbs a{text-decoration:underline}

.callout{background:#FFF7D6;border:2.5px solid var(--ink);border-radius:14px;padding:16px 18px;
  font-weight:800;font-size:14px;box-shadow:3px 3px 0 #111;margin:0 0 20px}
.callout strong{font-weight:900}

/* ---------- article layout ---------- */
.article-grid{display:grid;grid-template-columns:minmax(0,1fr) 288px;gap:32px;align-items:start;padding-bottom:20px}
@media(max-width:980px){.article-grid{grid-template-columns:minmax(0,1fr)}}

.panel{background:var(--card);border:2.5px solid var(--ink);border-radius:18px;box-shadow:var(--shadow);
  padding:clamp(22px,4vw,40px);margin-bottom:26px}

.meta-row{display:flex;flex-wrap:wrap;gap:10px;align-items:center;margin-bottom:20px}
.meta-chip{display:inline-block;background:var(--chip);border:2px solid var(--ink);border-radius:9px;
  padding:6px 12px;font-weight:800;font-size:12px;letter-spacing:.6px;text-transform:uppercase}
.meta-chip.cyan{background:var(--cyan)}
.meta-chip.pink{background:var(--pink)}

.prose{max-width:820px}
.prose h2{font-weight:900;font-size:clamp(22px,3vw,27px);letter-spacing:-.6px;margin:38px 0 12px;scroll-margin-top:92px}
.prose h2:first-child{margin-top:0}
.prose h3{font-weight:900;font-size:18px;margin:26px 0 8px;scroll-margin-top:92px}
.prose p{color:#33322a;font-weight:600;font-size:15.5px;line-height:1.7;margin-bottom:14px}
.prose ul,.prose ol{margin:0 0 16px 22px}
.prose li{color:#33322a;font-weight:600;font-size:15.5px;line-height:1.65;margin-bottom:8px}
.prose a{text-decoration:underline;font-weight:800}
.prose strong{font-weight:900}
.lede{font-size:17px!important;font-weight:700!important;color:#26251f!important;line-height:1.6!important}

/* answer-first summary box — targets featured snippets and AI answer engines */
.key-facts{background:var(--chip);border:2.5px solid var(--ink);border-radius:16px;box-shadow:var(--shadow-sm);
  padding:20px 22px;margin:0 0 26px}
.key-facts h2{font-size:14px!important;letter-spacing:1.2px;text-transform:uppercase;margin:0 0 12px!important}
.key-facts ul{margin:0 0 0 20px}
.key-facts li{font-size:15px;font-weight:700;margin-bottom:8px}
.key-facts li:last-child{margin-bottom:0}

.tldr{background:var(--cyan);border:2.5px solid var(--ink);border-radius:16px;box-shadow:var(--shadow-sm);
  padding:18px 20px;margin:0 0 26px;font-weight:800;font-size:15.5px;line-height:1.6}

/* table of contents */
.toc{background:#fff;border:2.5px solid var(--ink);border-radius:16px;box-shadow:var(--shadow-sm);padding:18px 20px;margin:0 0 26px}
.toc h2{font-size:13px!important;letter-spacing:1.2px;text-transform:uppercase;margin:0 0 10px!important}
.toc ol{margin:0 0 0 20px}
.toc li{font-size:14.5px;font-weight:800;margin-bottom:6px}
.toc a{text-decoration:none;border-bottom:2px solid transparent}
.toc a:hover{border-bottom-color:var(--ink)}

/* data table */
.table-scroll{overflow-x:auto;border:2.5px solid var(--ink);border-radius:14px;box-shadow:var(--shadow-sm);margin:0 0 22px;background:#fff}
table{border-collapse:collapse;width:100%;min-width:520px}
th,td{text-align:left;padding:12px 14px;font-size:14.5px;font-weight:700;border-bottom:2px solid #e6e2d2;color:#33322a}
th{background:var(--ink);color:#fff;font-weight:900;font-size:12.5px;letter-spacing:.8px;text-transform:uppercase;border-bottom:none}
tbody tr:last-child td{border-bottom:none}
tbody tr:nth-child(even) td{background:#fdfcf4}

/* inline citation + source cards */
.src{display:inline-flex;align-items:center;gap:6px;background:var(--chip);border:1.5px solid var(--ink);
  border-radius:9px;padding:6px 10px;font-weight:800;font-size:12px;transition:transform .08s ease;text-decoration:none!important}
.src:hover{transform:translate(-1px,-1px)}
.study{background:#fff;border:2.5px solid var(--ink);border-radius:14px;box-shadow:var(--shadow-sm);padding:16px 18px;margin:0 0 16px}
.study h3{margin:0 0 6px!important;font-size:16px}
.study p{font-size:14.5px;margin-bottom:10px}

.warn{background:#FFE1DD;border:2.5px solid var(--ink);border-radius:14px;box-shadow:3px 3px 0 #111;
  padding:16px 18px;font-weight:800;font-size:14.5px;line-height:1.6;margin:0 0 22px}

/* FAQ accordion-free (crawlable) */
.faq-item{background:#fff;border:2.5px solid var(--ink);border-radius:14px;box-shadow:var(--shadow-sm);padding:16px 18px;margin-bottom:14px}
.faq-item h3{margin:0 0 6px!important;font-size:16.5px}
.faq-item p{margin-bottom:0;font-size:14.5px}

/* sidebar */
.side{position:sticky;top:92px;display:flex;flex-direction:column;gap:18px}
@media(max-width:980px){.side{position:static}}
.side-card{background:#fff;border:2.5px solid var(--ink);border-radius:16px;box-shadow:var(--shadow-sm);padding:18px}
.side-card h4{font-weight:900;font-size:12px;letter-spacing:1.2px;text-transform:uppercase;margin-bottom:12px}
.side-card a.link{display:block;font-weight:800;font-size:14px;margin-bottom:9px;border-bottom:2px solid transparent;width:fit-content}
.side-card a.link:hover{border-bottom-color:var(--ink)}
.side-cta{background:var(--yellow);border:2.5px solid var(--ink);border-radius:16px;box-shadow:var(--shadow);padding:20px;text-align:center}
.side-cta h4{font-weight:900;font-size:19px;letter-spacing:-.5px;margin-bottom:8px;text-transform:none}
.side-cta p{font-weight:700;font-size:13.5px;line-height:1.5;margin-bottom:14px}
.side-cta .btn{width:100%;height:48px;font-size:14px}

/* article index cards */
.card-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:20px;margin-bottom:34px}
.acard{background:#fff;border:2.5px solid var(--ink);border-radius:18px;box-shadow:var(--shadow);
  padding:20px;display:flex;flex-direction:column;gap:9px;transition:transform .08s ease, box-shadow .08s ease}
.acard:hover{transform:translate(-2px,-2px);box-shadow:7px 7px 0 #111}
.acard .tag{align-self:flex-start;background:var(--cyan);border:2px solid var(--ink);border-radius:8px;
  padding:4px 9px;font-weight:900;font-size:10.5px;letter-spacing:.8px;text-transform:uppercase}
.acard .tag.yellow{background:var(--yellow)}
.acard .tag.pink{background:var(--pink)}
.acard h3{font-weight:900;font-size:18.5px;line-height:1.25;letter-spacing:-.4px}
.acard p{color:var(--muted);font-weight:700;font-size:14px;line-height:1.55;flex:1}
.acard .go{font-weight:900;font-size:13.5px}
.topics{display:flex;flex-wrap:wrap;gap:10px;margin:22px 0}
.topics a{background:#fff;border:2px solid var(--ink);border-radius:10px;padding:9px 14px;
  font-weight:800;font-size:13.5px;box-shadow:3px 3px 0 #111;transition:transform .08s ease}
.topics a:hover{transform:translate(-1px,-1px)}
.cluster-title{font-weight:900;font-size:26px;letter-spacing:-.6px;margin:40px 0 6px;scroll-margin-top:92px}
.cluster-intro{color:var(--muted);font-weight:700;font-size:14.5px;margin-bottom:18px;max-width:720px}

/* related links row */
.related{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:14px;margin:8px 0 0}
.related a{background:var(--chip);border:2px solid var(--ink);border-radius:12px;padding:13px 15px;
  font-weight:800;font-size:14px;box-shadow:3px 3px 0 #111;transition:transform .08s ease;line-height:1.35}
.related a:hover{transform:translate(-1px,-1px)}

/* CTA band */
.cta-band{margin:38px 0 80px}
.cta-box{background:var(--yellow);border:3px solid var(--ink);border-radius:28px;padding:44px 32px;
  box-shadow:var(--shadow-lg);text-align:center}
.cta-box h2{font-weight:900;font-size:clamp(26px,4vw,38px);letter-spacing:-1.2px;line-height:1.05}
.cta-box p{font-weight:800;font-size:15.5px;margin:12px auto 24px;max-width:520px}
.cta-box .row{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}
.cta-box ul{max-width:430px;margin:0 auto 22px;text-align:left}
.cta-box li{font-weight:800;font-size:14.5px;margin-bottom:7px}

footer{background:var(--ink);color:#fff;padding:48px 0 36px}
footer .wrap{display:flex;justify-content:space-between;gap:32px;flex-wrap:wrap}
footer .brand{color:#fff}
footer .brand .logo{box-shadow:none}
footer .cols{display:flex;gap:56px;flex-wrap:wrap}
footer h4{font-weight:900;font-size:12px;letter-spacing:1.2px;text-transform:uppercase;color:var(--yellow);margin-bottom:14px}
footer a{display:block;font-weight:700;font-size:14px;color:#dcdacb;margin-bottom:9px}
footer a:hover{color:#fff}
.foot-bottom{border-top:1px solid #3a392f;margin-top:36px;padding-top:22px;color:#9c9a8c;font-weight:700;font-size:12.5px}
.disclaimer{max-width:680px;line-height:1.5}