/* Upside Analytics — site.css */
:root{
  --navy:#081028; --navy-2:#0E1A3A; --line:#1E2D52; --ink:#0B1633; --slate:#485068;
  --sky:#00A0F0; --royal:#0048C0; --ground:#F5F7FB; --hair:#D8DEE8; --mute:#8FA3C4; --pale:#C7D2E6;
  --font-head:"Montserrat",system-ui,sans-serif; --font-body:"IBM Plex Sans","Helvetica Neue",Arial,sans-serif; --font-mono:"IBM Plex Mono",Menlo,monospace;
  --r:8px; --r-lg:16px; --max:1200px; --pad:clamp(20px,5vw,96px);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:90px}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
body{margin:0;background:var(--ground);color:var(--ink);font-family:var(--font-body);font-size:16px;line-height:1.6;-webkit-font-smoothing:antialiased}
img{max-width:100%;height:auto}
a{color:var(--royal)}
a:focus-visible,button:focus-visible,summary:focus-visible,[tabindex]:focus-visible{outline:3px solid var(--sky);outline-offset:3px}
h1,h2,h3{font-family:var(--font-head);font-weight:700;letter-spacing:-.02em;line-height:1.1;margin:0}
h1{font-size:clamp(34px,5vw,58px);line-height:1.04}
h2{font-size:clamp(28px,3.4vw,40px)}
h3{font-size:22px;line-height:1.25}
p{margin:0}
.wrap{max-width:var(--max);margin:0 auto;padding:0 var(--pad)}
.sr{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}
.btn{display:inline-flex;align-items:center;gap:10px;height:52px;padding:0 26px;border-radius:6px;font-weight:700;font-size:16px;text-decoration:none;border:0;cursor:pointer;font-family:inherit}
.btn-sky{background:var(--sky);color:var(--navy)}
.btn-navy{background:var(--navy);color:#fff}
.btn-ghost{border:1px solid #3B4B63;color:#fff;background:transparent;font-weight:600}
.btn svg{width:18px;height:18px}
.tag{display:flex;align-items:center;gap:12px;font-size:14px;font-weight:600;color:var(--royal)}
.tag::before{content:"";width:28px;height:2px;background:var(--royal);display:block}
.dark .tag,.tag.on-dark{color:var(--sky)}.dark .tag::before,.tag.on-dark::before{background:var(--sky)}

/* nav */
.nav{position:sticky;top:0;z-index:50;background:#fff;border-bottom:1px solid var(--hair)}
.nav .wrap{display:flex;align-items:center;justify-content:space-between;height:76px;gap:24px}
.nav .logo img{height:36px;width:auto;display:block}
.nav ul{list-style:none;margin:0;padding:0;display:flex;gap:26px;font-size:15px;font-weight:500}
.nav ul a{color:var(--ink);text-decoration:none;padding-bottom:3px}
.nav ul a[aria-current=page]{border-bottom:2px solid var(--sky);font-weight:600}
.nav .cta{height:44px;padding:0 18px;font-size:15px}
.nav .menu{display:none;background:none;border:1px solid var(--hair);border-radius:6px;height:44px;width:44px;align-items:center;justify-content:center}
@media (max-width:980px){
  .nav ul{display:none;position:absolute;left:0;right:0;top:76px;background:#fff;border-bottom:1px solid var(--hair);flex-direction:column;gap:0;padding:8px var(--pad) 16px}
  .nav ul li a{display:block;padding:12px 0;border-bottom:1px solid var(--hair)}
  .nav.open ul{display:flex}
  .nav .menu{display:inline-flex}
  .nav .cta{display:none}
}

/* hero */
.hero{background:var(--navy);color:#fff;position:relative;overflow:hidden;padding:clamp(56px,8vw,96px) 0}
.hero::before{content:"";position:absolute;left:0;top:0;height:4px;width:30%;background:linear-gradient(90deg,var(--sky),var(--royal))}
.hero .wrap{display:grid;grid-template-columns:1.3fr 1fr;gap:64px;align-items:center;position:relative}
.hero .copy{display:flex;flex-direction:column;gap:26px;max-width:720px}
.hero p.lede{font-size:clamp(17px,1.5vw,20px);line-height:1.55;color:var(--pale);max-width:640px}
.hero .ctas{display:flex;gap:14px;flex-wrap:wrap}
.hero .mesh{position:absolute;right:-60px;top:-30px;width:780px;height:520px;pointer-events:none;opacity:.55}
.hero.no-aside .wrap{grid-template-columns:1fr}
@media (max-width:980px){.hero .wrap{grid-template-columns:1fr}.hero .mesh{width:520px;height:350px;right:-120px;top:auto;bottom:-40px}}

/* sections */
.sec{padding-top:clamp(64px,8vw,104px)}
.sec-head{display:flex;justify-content:space-between;align-items:flex-end;gap:48px;margin-bottom:40px}
.sec-head>div{display:flex;flex-direction:column;gap:14px}
.sec-head p{color:var(--slate);max-width:460px;font-size:17px}
@media (max-width:760px){.sec-head{flex-direction:column;align-items:flex-start;gap:16px}}
.g2,.g3,.g4{display:grid;gap:24px}
.g2{grid-template-columns:repeat(2,minmax(0,1fr))}.g3{grid-template-columns:repeat(3,minmax(0,1fr))}.g4{grid-template-columns:repeat(4,minmax(0,1fr))}
@media (max-width:980px){.g3,.g4{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:640px){.g2,.g3,.g4{grid-template-columns:1fr}}

/* cards */
.card{display:flex;flex-direction:column;gap:16px;padding:32px;background:#fff;border:1px solid var(--hair);border-radius:12px;text-decoration:none;color:var(--ink);min-height:240px;transition:transform .2s,box-shadow .2s}
a.card:hover{transform:translateY(-3px);box-shadow:0 18px 40px rgba(8,16,40,.10)}
.card .ico{width:44px;height:44px;border-radius:8px;background:var(--navy);color:var(--sky);display:flex;align-items:center;justify-content:center;flex-shrink:0}
.card .top{display:flex;justify-content:space-between;align-items:flex-start;gap:16px}
.card .kicker{font-size:13px;font-weight:600;color:var(--royal)}
.card p{color:var(--slate);font-size:15px;flex-grow:1}
.card .more{font-weight:600;color:var(--royal);font-size:15px;display:inline-flex;align-items:center;gap:8px}
.card.dark{background:var(--navy);border-color:var(--line);color:#fff}
.card.dark .ico{background:rgba(0,160,240,.14);border:1px solid rgba(0,160,240,.4)}
.card.dark .kicker,.card.dark .more{color:var(--sky)}.card.dark p{color:var(--pale)}
.pillar{display:flex;flex-direction:column;gap:14px;padding:28px 24px 8px;border-top:2px solid var(--navy)}
.pillar h3{font-size:20px}.pillar p{color:var(--slate);font-size:15px}
.pillar .ico{width:44px;height:44px;border-radius:8px;background:var(--navy);color:var(--sky);display:flex;align-items:center;justify-content:center}

/* tables */
.tbl{background:#fff;border:1px solid var(--hair);border-radius:12px;overflow:hidden}
.tbl .row{display:grid;gap:24px;padding:22px 28px;border-top:1px solid #E5E9EF;font-size:15px}
.tbl .row>:first-child{font-weight:600}.tbl .row>:not(:first-child){color:var(--slate)}
.tbl .head{background:var(--navy);color:#fff;font-size:13px;font-weight:600;border-top:0;padding:14px 28px}
.tbl .head>*{color:#fff}
@media (max-width:760px){.tbl .head{display:none}.tbl .row{grid-template-columns:1fr!important;gap:6px;padding:18px 20px}.tbl .row>:not(:first-child)::before{content:attr(data-l) ": ";font-weight:600;color:var(--ink)}}

/* tabs */
.tabs{background:#fff;border:1px solid var(--hair);border-radius:12px;overflow:hidden}
.tabs [role=tablist]{display:flex;gap:0;border-bottom:1px solid var(--hair);overflow-x:auto}
.tabs [role=tab]{background:none;border:0;padding:18px 22px;font:inherit;font-weight:600;font-size:15px;color:var(--slate);cursor:pointer;border-bottom:3px solid transparent;white-space:nowrap}
.tabs [role=tab][aria-selected=true]{color:var(--ink);border-bottom-color:var(--sky)}
.tabs [role=tabpanel]{padding:28px;display:grid;grid-template-columns:1.2fr 1fr;gap:32px}
.tabs [role=tabpanel][hidden]{display:none}
.tabs .what{display:flex;flex-direction:column;gap:12px}.tabs .what h3{font-size:22px}.tabs .what p{color:var(--slate)}
.tabs .built{background:var(--ground);border-radius:8px;padding:20px;font-size:14px;display:flex;flex-direction:column;gap:8px}
.tabs .built b{display:block;color:var(--royal);font-size:13px}
@media (max-width:760px){.tabs [role=tabpanel]{grid-template-columns:1fr}}

/* steps */
.steps{display:flex;flex-direction:column}
.step{display:grid;grid-template-columns:72px 1fr;gap:24px;padding:24px 0;border-top:1px solid var(--hair)}
.step:first-child{border-top-color:var(--navy)}.step:last-child{border-bottom:1px solid var(--hair)}
.step .n{font-family:var(--font-head);font-weight:800;font-size:32px;color:transparent;-webkit-text-stroke:1px var(--navy)}
.step b{font-size:18px;display:block;margin-bottom:6px}.step p{color:var(--slate);font-size:15px}
.split{display:grid;grid-template-columns:1fr 1.6fr;gap:64px;align-items:start}
.split>div:first-child{display:flex;flex-direction:column;gap:16px}.split>div:first-child p{color:var(--slate)}
@media (max-width:980px){.split{grid-template-columns:1fr;gap:28px}}

/* bands */
.band{margin-top:clamp(64px,8vw,104px);padding:clamp(32px,5vw,56px);background:var(--navy);color:#fff;border-radius:var(--r-lg);display:grid;grid-template-columns:1.4fr 1fr;gap:56px;align-items:center;position:relative;overflow:hidden}
.band .mesh{position:absolute;right:-60px;top:-30px;width:780px;height:520px;opacity:.3;pointer-events:none}
.band>*{position:relative}
.band .txt{display:flex;flex-direction:column;gap:18px}.band .txt p{color:var(--pale)}.band .txt a{color:var(--sky);font-weight:600;display:inline-flex;align-items:center;gap:8px}
.stats{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
.stat{padding:20px;border:1px solid var(--line);border-radius:10px;background:var(--navy-2);display:flex;flex-direction:column;gap:6px}
.stat b{font-family:var(--font-head);font-weight:700;font-size:32px;color:#fff;display:block}.stat span{font-size:13px;color:var(--mute)}
.stats.light .stat{background:#fff;border-color:var(--hair)}.stats.light .stat b{color:var(--navy)}.stats.light .stat span{color:var(--slate)}
@media (max-width:980px){.band{grid-template-columns:1fr}}
.feature{margin-top:clamp(64px,8vw,104px);padding:clamp(32px,5vw,56px);background:#fff;border:1px solid var(--hair);border-radius:var(--r-lg);display:grid;grid-template-columns:1fr 1.4fr;gap:56px;align-items:start;background-image:radial-gradient(var(--hair) 1px,transparent 1px);background-size:24px 24px}
.feature>div:first-child{display:flex;flex-direction:column;gap:16px}
.feature .body{display:flex;flex-direction:column;gap:18px;color:var(--slate)}
@media (max-width:980px){.feature{grid-template-columns:1fr}}

/* contact */
.contact{margin-top:clamp(64px,8vw,104px);padding:clamp(32px,5vw,56px);background:#fff;border:1px solid var(--hair);border-radius:var(--r-lg);display:flex;justify-content:space-between;align-items:center;gap:48px;background-image:radial-gradient(var(--hair) 1px,transparent 1px);background-size:24px 24px}
.contact>div:first-child{display:flex;flex-direction:column;gap:12px;max-width:640px}.contact p{color:var(--slate);font-size:17px}
.contact .act{display:flex;flex-direction:column;gap:12px;align-items:flex-start}
.contact.dark{background:var(--navy);color:#fff;border-color:var(--line)}.contact.dark p{color:var(--pale)}
@media (max-width:760px){.contact{flex-direction:column;align-items:flex-start}}

/* faq */
.faq{display:flex;flex-direction:column;border-top:1px solid var(--navy)}
.faq details{border-bottom:1px solid var(--hair)}
.faq summary{cursor:pointer;padding:20px 0;font-weight:600;font-size:18px;list-style:none;display:flex;justify-content:space-between;align-items:center;gap:16px}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";font-size:24px;color:var(--royal);font-weight:400}
.faq details[open] summary::after{content:"–"}
.faq .a{padding:0 0 22px;color:var(--slate);max-width:760px}

/* inline footnote */
details.fn{display:inline}details.fn summary{display:inline;cursor:help;list-style:none;border-bottom:1px dotted var(--royal);color:inherit}
details.fn summary::-webkit-details-marker{display:none}
details.fn .d{display:block;margin:8px 0;padding:12px 16px;background:#fff;border-left:3px solid var(--sky);font-size:14px;color:var(--slate)}

/* subnav */
.subnav{position:sticky;top:76px;z-index:40;background:rgba(245,247,251,.92);backdrop-filter:blur(8px);border-bottom:1px solid var(--hair)}
.subnav ul{list-style:none;margin:0;padding:0;display:flex;gap:28px;height:52px;align-items:center;overflow-x:auto;font-size:14px;font-weight:600}
.subnav a{color:var(--slate);text-decoration:none;white-space:nowrap}.subnav a.is{color:var(--ink);border-bottom:2px solid var(--sky);padding-bottom:2px}

/* mock panel */
.panel{background:var(--navy-2);border:1px solid var(--line);border-radius:12px;padding:22px 24px 20px;box-shadow:0 30px 60px rgba(0,0,0,.35);display:flex;flex-direction:column;gap:8px}
.panel .ph{display:flex;justify-content:space-between;align-items:center}
.panel .ph b{display:block;font-size:15px}.panel .ph span{font-size:12px;color:var(--mute)}
.panel .dots span{display:inline-block;width:8px;height:8px;border-radius:4px;background:var(--line);margin-left:6px}.panel .dots span:last-child{background:var(--sky)}
.panel .pr{display:grid;grid-template-columns:1.3fr 1fr 1fr 24px;gap:12px;align-items:center;padding:10px 0;border-top:1px solid var(--line);font-size:13px}
.panel .pr.h{border-top:0;font-size:11px;color:var(--mute);padding:6px 0 2px}
.panel .pr .num{font-family:var(--font-mono)}.panel .pr .d{color:var(--mute);font-family:var(--font-mono)}
.panel .pr .ok{width:10px;height:10px;border-radius:5px;background:#34D399;justify-self:end}.panel .pr .warn{background:#F59E0B}
.panel .bars{display:flex;align-items:flex-end;gap:6px;height:80px;padding-top:4px;border-top:1px solid var(--line);margin-top:4px}
.panel .bars i{flex-grow:1;background:var(--sky);opacity:.35;border-radius:2px 2px 0 0;transform-origin:bottom}.panel .bars i:nth-child(3n+1){opacity:.9}
.chips{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}
.chip{display:flex;align-items:center;gap:8px;padding:9px 14px;border:1px solid var(--line);border-radius:999px;background:rgba(14,26,58,.8);font-size:13px;color:#fff}
.chip svg{color:var(--sky)}
.aside{position:relative}
.reveal .panel .bars i{animation:grow .9s cubic-bezier(.2,.7,.2,1) both}
@keyframes grow{from{transform:scaleY(0)}to{transform:scaleY(1)}}
@media (prefers-reduced-motion:reduce){.reveal .panel .bars i{animation:none}}

/* diagrams (orthogonal connectors only) */
.diagram{position:relative}
.diagram .box{position:absolute;box-sizing:border-box;background:var(--navy-2);border:1px solid var(--line);border-radius:8px;padding:12px 14px;display:flex;flex-direction:column;justify-content:center;gap:3px;color:#fff}
.diagram .box.acc{border-color:var(--sky)}.diagram .box b{font-size:13px;line-height:1.25}.diagram .box span{font-size:11px;color:var(--mute);line-height:1.3}
.diagram .v,.diagram .h{position:absolute;background:var(--sky)}.diagram .v{width:2px}.diagram .h{height:2px}.diagram .v.q,.diagram .h.q{background:var(--line)}
.diagram .ad{position:absolute;width:0;height:0;border-left:6px solid transparent;border-right:6px solid transparent;border-top:8px solid var(--sky)}
.diagram .ar{position:absolute;width:0;height:0;border-top:6px solid transparent;border-bottom:6px solid transparent;border-left:8px solid var(--sky)}
.diagram .lbl{position:absolute;font-size:11px;color:var(--mute)}
.chain .step-r{opacity:0;transform:translateY(8px);transition:opacity .5s,transform .5s}
.chain.reveal .step-r{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){.chain .step-r{opacity:1;transform:none;transition:none}}
@media (max-width:980px){.diagram{transform:scale(.8);transform-origin:top left}}
@media (max-width:640px){.diagram{display:none}}

/* case index filter */
.filters{display:flex;gap:8px;flex-wrap:wrap;margin-top:8px}
.filters button{height:42px;padding:0 16px;border-radius:999px;border:1px solid var(--hair);background:#fff;font:inherit;font-weight:600;font-size:14px;cursor:pointer;color:var(--ink)}
.filters button[aria-pressed=true]{background:var(--navy);border-color:var(--navy);color:#fff}
.cases .card[hidden]{display:none}

/* article */
.article{display:grid;grid-template-columns:1fr 2fr;gap:80px;align-items:start;padding-top:clamp(56px,7vw,88px)}
.article .toc{position:sticky;top:96px;display:flex;flex-direction:column;gap:28px}
.article .toc ul{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:10px;font-size:15px}
.article .toc a{color:var(--ink);text-decoration:none;display:flex;align-items:center;gap:10px}.article .toc a::before{content:"";width:6px;height:6px;border-radius:3px;background:var(--sky)}
.article .toc .note{padding:24px;background:#fff;border:1px solid var(--hair);border-radius:12px;font-size:14px;color:var(--slate)}
.article .prose{display:flex;flex-direction:column;gap:48px}
.article .prose section{display:flex;flex-direction:column;gap:14px}
.article .prose section p{color:var(--slate);font-size:16px;line-height:1.7}
.article .prose h2{font-size:30px}
.quote{font-family:"Instrument Serif",Georgia,serif;font-style:italic;font-size:24px;line-height:1.45;color:var(--ink)}
.shot{height:340px;border:1px dashed #B8C2CE;border-radius:12px;background:#fff;display:flex;align-items:center;justify-content:center;font-size:14px;color:#64748B;background-image:radial-gradient(var(--hair) 1px,transparent 1px);background-size:24px 24px}
@media (max-width:980px){.article{grid-template-columns:1fr;gap:32px}.article .toc{position:static}}
.pull{display:flex;flex-direction:column;gap:22px;padding:44px;background:#fff;border:1px solid var(--hair);border-radius:12px;position:relative}
.pull .q{font-family:"Instrument Serif",Georgia,serif;font-size:96px;line-height:.6;color:var(--sky);position:absolute;top:40px;left:36px}
.pull p{margin-top:28px;font-family:"Instrument Serif",Georgia,serif;font-style:italic;font-size:26px;line-height:1.4}
.pull .who{display:flex;align-items:center;gap:14px}.pull .who img,.pull .who .ph{width:52px;height:52px;border-radius:26px;border:2px solid var(--sky);object-fit:cover;background:var(--hair);display:flex;align-items:center;justify-content:center;font-size:10px;color:var(--slate)}
.pull .who b{display:block;font-size:15px}.pull .who span{font-size:14px;color:var(--slate)}
.logos{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}
.logos div{height:92px;border:1px dashed #B8C2CE;border-radius:10px;background:#fff;display:flex;align-items:center;justify-content:center;font-size:12px;color:#64748B;text-align:center;padding:8px}
.ticker{background:var(--navy-2);border-bottom:1px solid var(--line)}
.ticker ul{list-style:none;margin:0;padding:0;display:flex;justify-content:space-between;align-items:center;height:60px;font-size:13px;color:var(--mute);gap:24px;overflow-x:auto}
.ticker li{white-space:nowrap}
.insights-list a{display:grid;grid-template-columns:180px 1fr 140px;gap:24px;padding:24px 0;border-bottom:1px solid var(--hair);text-decoration:none;color:var(--ink);align-items:baseline}
.insights-list a .t{font-size:14px;color:var(--royal);display:flex;align-items:center;gap:8px}.insights-list a .t::before{content:"";width:6px;height:6px;border-radius:3px;background:var(--sky)}
.insights-list a h3{font-size:21px}.insights-list a .dt{font-size:14px;color:var(--slate)}
.insights-list .hd{display:grid;grid-template-columns:180px 1fr 140px;gap:24px;padding:14px 0;border-bottom:2px solid var(--navy);font-size:13px;font-weight:600;color:var(--slate)}
@media (max-width:760px){.insights-list a,.insights-list .hd{grid-template-columns:1fr;gap:6px}.insights-list .hd>:not(:first-child){display:none}}

/* footer */
.footer{margin-top:clamp(64px,8vw,104px);background:var(--navy);color:var(--pale);padding:64px 0 40px;position:relative;overflow:hidden}
.footer .wm{position:absolute;right:80px;bottom:-28px;font-family:var(--font-head);font-weight:800;font-size:160px;letter-spacing:-.04em;color:#fff;opacity:.04;pointer-events:none;white-space:nowrap}
.footer .cols{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:48px;position:relative}
.footer .brand{display:flex;align-items:center;gap:14px}.footer .brand img{height:34px;width:auto}
.footer .brand b{font-family:var(--font-head);font-weight:800;font-size:20px;color:#fff;display:block;line-height:1}.footer .brand span{font-family:var(--font-head);font-weight:500;font-size:10px;letter-spacing:.34em;color:var(--pale);display:block;line-height:1;margin-top:3px}
.footer p{font-size:14px;line-height:1.65;margin-top:16px}
.footer h4{margin:0 0 10px;font-size:13px;font-weight:600;color:var(--mute);font-family:var(--font-body)}
.footer ul{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:10px;font-size:14px}.footer ul a{color:var(--pale);text-decoration:none}
.footer .legal{border-top:1px solid var(--line);margin-top:40px;padding-top:24px;display:flex;justify-content:space-between;gap:24px;font-size:13px;color:var(--mute);position:relative;flex-wrap:wrap}
@media (max-width:980px){.footer .cols{grid-template-columns:1fr 1fr}}
@media (max-width:640px){.footer .cols{grid-template-columns:1fr}}