/* Nitrate Media blog. Brand values from B2B_Design_Prompt.md: ink #0B0B0C, panel #151517, paper #F3F2EF, grey #9B9AA0, red #E8322B (accent only).
   Anton (headlines), Archivo (body), JetBrains Mono (labels). Shared by the blog index and every article. */
:root{
  --ink:#0b0b0c;--panel:#151517;--line:#2a2a2e;--paper:#f3f2ef;--text:#dedcd7;--muted:#9b9aa0;--red:#e8322b;
  --display:"Anton","Impact","Arial Narrow Bold",sans-serif;
  --body:"Archivo","Helvetica Neue",Arial,sans-serif;
  --mono:"JetBrains Mono",ui-monospace,Menlo,monospace;
  color-scheme:dark;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:84px}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
body{margin:0;background:var(--ink);color:var(--text);font-family:var(--body);font-size:17px;line-height:1.7;-webkit-font-smoothing:antialiased}
img{max-width:100%;height:auto;display:block}
a{color:var(--paper)}
a:focus-visible,button:focus-visible{outline:2px solid var(--red);outline-offset:3px}
.wrap{max-width:1180px;margin:0 auto;padding-left:max(18px,env(safe-area-inset-left,0px));padding-right:max(18px,env(safe-area-inset-right,0px))}
.label{font-family:var(--mono);font-size:12px;letter-spacing:.08em;text-transform:uppercase;color:var(--muted)}
h1,h2,h3{font-family:var(--display);font-weight:400;text-transform:uppercase;letter-spacing:.01em;line-height:1;color:var(--paper);text-wrap:balance;margin:0}

/* header */
header.site{position:sticky;top:0;z-index:5;background:color-mix(in srgb,var(--ink) 90%,transparent);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;justify-content:space-between;gap:16px;height:64px}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none}
.brand span{font-family:var(--display);font-size:22px;letter-spacing:.04em;color:var(--paper)}
.navlinks{display:flex;gap:22px;align-items:center}
.navlinks a{font-family:var(--mono);font-size:13px;text-decoration:none;color:var(--muted);text-transform:uppercase;letter-spacing:.06em}
.navlinks a:hover,.navlinks a[aria-current]{color:var(--paper)}
.btn{display:inline-flex;align-items:center;gap:8px;background:var(--red);color:#fff!important;text-decoration:none;font-family:var(--mono);font-size:13px;font-weight:500;text-transform:uppercase;letter-spacing:.06em;padding:12px 18px;border-radius:2px}
.btn:hover{background:#ff4a42}
@media (max-width:700px){.navlinks a:not(.btn){display:none}}
@media (max-width:420px){.brand span{font-size:18px}.btn{padding:10px 12px;font-size:12px}}

/* blog index */
.b-hero{padding-block:64px 40px;border-bottom:1px solid var(--line)}
.b-hero h1{font-size:clamp(56px,11vw,128px);line-height:.9;margin-top:14px}
.b-hero h1 .dot{color:var(--paper)}
.b-hero p{max-width:58ch;color:var(--text);font-size:19px;margin:22px 0 0}
.posts{display:grid;grid-template-columns:repeat(auto-fill,minmax(320px,1fr));gap:20px;margin-block:48px}
.card{background:var(--ink);border:1px solid var(--line);padding:28px 26px;display:flex;flex-direction:column;gap:12px;text-decoration:none;min-width:0;transition:background .2s}
.card:hover{background:var(--panel)}
.card h2{font-size:clamp(28px,3vw,36px);line-height:1.02}
.card p{margin:0;color:#bdbbb6;font-size:16px;line-height:1.6}
.card .more{margin-top:auto;padding-top:8px;font-family:var(--mono);font-size:12px;text-transform:uppercase;letter-spacing:.06em;color:var(--paper)}
.meta{display:flex;flex-wrap:wrap;gap:6px 16px}
.empty{margin-block:48px;border:1px dashed var(--line);padding:40px 28px;color:var(--muted)}

/* article */
.crumbs{padding-top:28px}
.crumbs ol{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;gap:8px}
.crumbs li+li::before{content:"/";margin-right:8px;color:var(--line)}
.crumbs a{color:var(--muted);text-decoration:none}
.crumbs a:hover{color:var(--paper)}
.a-head{padding-block:28px 32px}
.a-head>*{max-width:900px}
.a-head h1{font-size:clamp(40px,6vw,68px);line-height:.98;margin-top:14px}
.a-head .dek{font-size:20px;color:var(--text);max-width:60ch;margin:22px 0 0}
.a-head .meta{margin-top:22px}
.a-grid{display:grid;grid-template-columns:minmax(0,720px) 260px;gap:64px;justify-content:space-between;padding-bottom:72px;border-top:1px solid var(--line);padding-top:40px}
@media (max-width:1000px){.a-grid{grid-template-columns:minmax(0,1fr)}.toc{display:none}}
.prose h2{font-size:clamp(30px,4vw,42px);margin:56px 0 18px}
.prose h3{font-size:24px;margin:36px 0 12px}
.prose p,.prose ul,.prose ol{margin:0 0 18px}
.prose ul,.prose ol{padding-left:22px}
.prose li{margin-bottom:8px}
.prose li::marker{color:var(--muted)}
.prose strong{color:var(--paper)}
.prose a{color:var(--paper);text-decoration-color:var(--red);text-underline-offset:3px}
.prose blockquote{margin:28px 0;padding:4px 0 4px 20px;border-left:3px solid var(--red);color:var(--paper)}
.answer{background:var(--panel);border:1px solid var(--line);border-left:4px solid var(--red);padding:22px 24px;margin:0 0 32px}
.answer .label{display:block;margin-bottom:8px;color:var(--paper)}
.answer p{margin:0;color:var(--paper);font-size:18px}
.tbl{overflow-x:auto;margin:24px 0 28px;border:1px solid var(--line)}
.tbl table{border-collapse:collapse;width:100%;min-width:560px;font-size:15px;line-height:1.5}
.tbl th,.tbl td{text-align:left;vertical-align:top;padding:12px 14px;border-bottom:1px solid var(--line)}
.tbl th{font-family:var(--mono);font-size:12px;font-weight:500;text-transform:uppercase;letter-spacing:.06em;color:var(--muted);background:var(--panel)}
.tbl tr:last-child td{border-bottom:0}
.tbl td:first-child{color:var(--paper);font-weight:600}
pre.copy{white-space:pre-wrap;background:var(--panel);border:1px solid var(--line);padding:20px;font-family:var(--mono);font-size:14px;line-height:1.7;color:var(--paper);margin:20px 0 28px}
.faq details{border-bottom:1px solid var(--line)}
.faq details:first-of-type{border-top:1px solid var(--line)}
.faq summary{cursor:pointer;list-style:none;display:flex;justify-content:space-between;gap:16px;padding:18px 0;font-weight:600;color:var(--paper)}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";font-family:var(--mono);color:var(--paper)}
.faq details[open] summary::after{content:"\2212"}
.faq details p{color:var(--text)}
.cta-box{margin:56px 0 0;background:var(--paper);color:var(--ink);padding:32px 28px}
.cta-box h2{color:var(--ink);margin:8px 0 12px;font-size:clamp(32px,4.4vw,48px)}
.cta-box p{color:#3a3a3e;margin:0 0 20px}
.cta-box .label{color:#5d5c60}
.cta-box .row{display:flex;flex-wrap:wrap;gap:12px;align-items:center}
.cta-box .alt{font-family:var(--mono);font-size:13px;color:#3a3a3e}
.cta-box .alt a{color:var(--ink)}
.sources{margin-top:48px;padding-top:24px;border-top:1px solid var(--line);font-size:14px;color:var(--muted)}
.sources h2{font-size:24px;margin:0 0 12px}
.sources ol{padding-left:20px}
.sources a{color:var(--muted)}
.toc{position:sticky;top:96px;align-self:start;border-left:1px solid var(--line);padding-left:20px}
.toc ol{list-style:none;margin:12px 0 0;padding:0;display:grid;gap:10px}
.toc a{color:var(--muted);text-decoration:none;font-size:14px;line-height:1.4}
.toc a:hover{color:var(--paper)}
.related{border-top:1px solid var(--line);padding-block:48px 64px}
.related h2{font-size:32px;margin-bottom:20px}

footer.site{padding-block:28px;border-top:1px solid var(--line)}
.foot{display:flex;flex-wrap:wrap;gap:16px;justify-content:space-between;align-items:center}
.foot nav{display:flex;flex-wrap:wrap;gap:20px}
.foot nav a{font-family:var(--mono);font-size:13px;text-transform:uppercase;letter-spacing:.06em;color:var(--muted);text-decoration:none}
.foot nav a:hover{color:var(--paper)}

/* click-to-load YouTube (no player weight until the visitor presses play) */
.video-fig{margin:24px 0 28px}
.video-fig .video,.video-fig iframe{display:block;position:relative;aspect-ratio:16/9;width:100%;border:1px solid var(--line);background:var(--panel);overflow:hidden}
.video-fig iframe{border:0}
.video-fig img{width:100%;height:100%;object-fit:cover;filter:saturate(.85);transition:filter .3s}
.video-fig .video:hover img{filter:saturate(1)}
.video-fig .play{position:absolute;left:16px;bottom:16px;width:52px;height:52px;border-radius:50%;background:var(--red);display:grid;place-items:center}
.video-fig figcaption{margin-top:10px}
.video-fig figcaption a{color:var(--muted)}

/* header image + related */
.hero-img{margin:0 0 8px}
.hero-img img{display:block;width:100%;height:auto;aspect-ratio:2/1;object-fit:cover}
.hero-img figcaption{font-size:12px;opacity:.7;margin-top:6px}
.related{padding-bottom:64px}
.related .posts{margin-block:24px 0}
@media (min-width:900px){.hero-img img{aspect-ratio:12/5}}