/* Skyware — neo-brutalist design system (Gumroad-inspired), 2026 palette */
:root{
  --bg:#F4F3EF;
  --ink:#000;
  --paper:#fff;

  /* vivid palette anchors (accents) */
  --accent:#4E66FC;   /* blue */
  --purple:#954EFC;
  --yellow:#FCD34D;
  --orange:#FCAF4E;

  /* light category tints (black-text safe) */
  --note-bg:#DCE2FF;
  --warn-bg:#FBD388;
  --key-bg:#B9EFCB;
  --mark:#FCD34D;

  --border:2px solid var(--ink);
  --shadow:5px 5px 0 var(--ink);
  --shadow-lg:8px 8px 0 var(--ink);
  --radius:6px;
  --font:'Archivo',system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --mono:'Space Mono',ui-monospace,Consolas,Menlo,monospace;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:var(--font);
  font-size:17px;
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%}
a{color:var(--ink)}
h1,h2,h3,h4{line-height:1.15;letter-spacing:-0.015em;font-weight:900;margin:0 0 0.6em}
h1{font-size:clamp(2rem,5vw,3.4rem)}
h2{font-size:clamp(1.4rem,3vw,1.9rem);margin-top:1.8em}
h3{font-size:1.15rem}
p{margin:0 0 1em}
mark{background:var(--mark);padding:0 .15em;box-decoration-break:clone;-webkit-box-decoration-break:clone}

a:focus-visible,button:focus-visible,summary:focus-visible,[tabindex]:focus-visible{
  outline:3px solid var(--accent);outline-offset:2px;border-radius:2px;
}

.skip-link{
  position:absolute;left:-9999px;top:0;z-index:200;
  background:var(--ink);color:var(--paper);font-weight:800;
  padding:10px 16px;border-radius:var(--radius);
}
.skip-link:focus{left:10px;top:10px}

.container{max-width:1120px;margin:0 auto;padding:0 20px}
.section{padding:44px 20px}
.section-head{margin:0 0 22px;font-size:1.5rem}
.section-head a{text-decoration:none}
.section-head a:hover{text-decoration:underline;text-decoration-thickness:3px}

/* header */
.site-header{
  background:var(--paper);
  border-bottom:var(--border);
  position:sticky;top:0;z-index:50;
}
.header-inner{
  display:flex;align-items:center;justify-content:space-between;
  gap:16px;padding:12px 20px;flex-wrap:wrap;
}
.logo{
  display:inline-flex;align-items:center;gap:9px;
  font-family:var(--mono);font-weight:700;font-size:1.3rem;
  letter-spacing:-0.04em;
  color:var(--ink);text-decoration:none;
}
.logo em{font-style:normal;color:var(--accent);animation:blink 1.3s steps(2,start) infinite}
@keyframes blink{to{visibility:hidden}}
@media (prefers-reduced-motion: reduce){.logo em{animation:none}}
.logo-cloud{width:36px;height:25px;flex:none}
.logo-sub{font-family:var(--mono);font-weight:400;font-size:.62rem;color:#555;letter-spacing:0;margin-left:2px;white-space:nowrap}
.logo-footer{margin:0 0 12px}
.site-header nav{display:flex;align-items:center;gap:14px;flex-wrap:wrap}
.site-header nav a{
  text-decoration:none;font-weight:700;font-size:.95rem;
  padding:8px 2px;line-height:1.4;
}
.site-header nav a:hover:not(.btn){text-decoration:underline;text-decoration-thickness:3px;text-underline-offset:4px}

/* buttons */
.btn{
  display:inline-block;
  background:var(--ink);color:var(--paper)!important;
  border:var(--border);border-radius:var(--radius);
  padding:12px 22px;font-weight:800;font-size:1rem;
  text-decoration:none;cursor:pointer;
  box-shadow:var(--shadow);
  transition:transform .12s,box-shadow .12s;
}
.btn:hover{transform:translate(-2px,-2px);box-shadow:7px 7px 0 var(--accent)}
.btn-alt{background:var(--paper);color:var(--ink)!important}
.btn-alt:hover{box-shadow:7px 7px 0 var(--ink)}
.btn-small{padding:8px 14px;font-size:.9rem;box-shadow:3px 3px 0 var(--ink)}

/* hero */
.hero{
  border-bottom:var(--border);
  background:
    radial-gradient(circle at 85% 20%,var(--accent) 0 58px,transparent 59px),
    radial-gradient(circle at 92% 72%,var(--yellow) 0 40px,transparent 41px),
    radial-gradient(circle at 74% 58%,var(--purple) 0 24px,transparent 25px),
    radial-gradient(circle at 80% 40%,var(--orange) 0 16px,transparent 17px),
    var(--bg);
  padding:72px 0 64px;
}
.kicker{
  display:inline-block;background:var(--yellow);
  border:var(--border);border-radius:999px;
  padding:5px 14px;font-weight:700;font-size:.8rem;
  font-family:var(--mono);
  text-transform:uppercase;letter-spacing:.04em;
  box-shadow:3px 3px 0 var(--ink);margin-bottom:20px;
}
.hero h1{max-width:820px}
.hero-sub{font-size:1.2rem;max-width:680px;font-weight:500}
.hero-actions{display:flex;gap:16px;flex-wrap:wrap;margin-top:26px}

/* grids & cards */
.grid{display:grid;gap:22px}
.grid-3{grid-template-columns:repeat(auto-fill,minmax(280px,1fr))}
.grid-4{grid-template-columns:repeat(auto-fill,minmax(240px,1fr))}
.card{
  display:flex;flex-direction:column;gap:10px;
  background:var(--paper);
  border:var(--border);border-radius:var(--radius);
  box-shadow:var(--shadow);
  padding:20px;text-decoration:none;
  transition:transform .12s,box-shadow .12s;
}
.card:hover{transform:translate(-3px,-3px);box-shadow:var(--shadow-lg)}
.card h3{margin:0}
.card p{margin:0;font-size:.95rem;font-weight:500}
.card-meta{font-family:var(--mono);font-weight:700;font-size:.78rem;margin-top:auto;padding-top:6px}
.cat-card p{font-weight:600}
.tag{
  align-self:flex-start;
  border:var(--border);border-radius:999px;
  padding:2px 12px;font-weight:700;font-size:.68rem;
  font-family:var(--mono);
  text-transform:uppercase;letter-spacing:.03em;
}

/* article & hub heroes */
.article-hero,.hub-hero{border-bottom:var(--border);padding:48px 0}
.hub-hero{padding:56px 0}
.article-hero-inner{max-width:900px}
.hub-intro{max-width:760px;font-size:1.15rem;font-weight:500;margin-bottom:0}
.crumbs{font-family:var(--mono);font-weight:700;font-size:.8rem;margin-bottom:16px}
.crumbs a{text-decoration:none}
.crumbs a:hover{text-decoration:underline}
.article-meta{font-family:var(--mono);font-weight:400;font-size:.8rem;margin:0}

/* article layout */
.article-layout{
  display:grid;grid-template-columns:260px minmax(0,720px);
  gap:44px;padding-top:40px;padding-bottom:56px;
  align-items:start;
}
@media(max-width:900px){.article-layout{grid-template-columns:minmax(0,1fr)}}
.article-layout.single{grid-template-columns:minmax(0,720px)}
.toc{
  position:sticky;top:84px;
  background:var(--paper);border:var(--border);border-radius:var(--radius);
  box-shadow:var(--shadow);padding:16px 18px;
}
@media(max-width:900px){.toc{position:static}}
.toc-head{font-family:var(--mono);font-weight:700;text-transform:uppercase;font-size:.75rem;letter-spacing:.05em;margin:0 0 8px}
.toc ol{margin:0;padding-left:18px;font-size:.9rem;font-weight:600}
.toc li{margin:6px 0}
.toc a{text-decoration:none}
.toc a:hover{text-decoration:underline}

.article-body{font-size:1.05rem}
.article-body h2{
  border-bottom:3px solid var(--ink);
  padding-bottom:.25em;
}
.article-body ul,.article-body ol{padding-left:24px;margin:0 0 1.2em}
.article-body li{margin:.45em 0}
.article-body a{text-decoration-thickness:2px;text-underline-offset:3px;font-weight:600}

/* figures */
.article-body figure{
  margin:1.6em 0;
  background:var(--paper);border:var(--border);border-radius:var(--radius);
  box-shadow:var(--shadow);
  padding:10px;
}
.article-body figure img{display:block;width:100%;height:auto}
.article-body figcaption{
  font-family:var(--mono);font-size:.78rem;color:#333;
  padding:10px 8px 2px;
}

/* tables */
.article-body table{
  width:100%;border-collapse:collapse;
  border:var(--border);background:var(--paper);
  box-shadow:var(--shadow);
  margin:1.4em 0;font-size:.92rem;
  display:block;overflow-x:auto;
}
.article-body th,.article-body td{
  border:1px solid var(--ink);padding:9px 12px;text-align:left;vertical-align:top;
}
.article-body th{background:var(--ink);color:var(--paper);font-weight:800;white-space:nowrap}
.article-body tr:nth-child(even) td{background:#F5F6FB}

/* callouts */
.callout{
  background:var(--paper);border:var(--border);border-radius:var(--radius);
  box-shadow:var(--shadow);
  padding:16px 20px;margin:1.5em 0;
}
.callout.note{background:var(--note-bg)}
.callout.warn{background:var(--warn-bg)}
.callout.key{background:var(--key-bg)}
.callout.legal{background:#ECECEC}
.callout p:last-child{margin-bottom:0}
.callout-title{font-family:var(--mono);font-weight:700;text-transform:uppercase;font-size:.72rem;letter-spacing:.05em;display:block;margin-bottom:6px}

/* code */
pre,code{font-family:var(--mono)}
code{background:#fff;border:1px solid var(--ink);border-radius:4px;padding:1px 5px;font-size:.85em}
pre{
  background:var(--ink);color:#A9C0FF;
  border:var(--border);border-radius:var(--radius);box-shadow:var(--shadow);
  padding:16px 20px;overflow-x:auto;font-size:.85rem;line-height:1.5;
}
pre code{background:none;border:none;padding:0;color:inherit}

/* FAQ */
.faq details{
  background:var(--paper);border:var(--border);border-radius:var(--radius);
  box-shadow:var(--shadow);margin:12px 0;padding:0;
}
.faq summary{
  cursor:pointer;font-weight:800;padding:14px 18px;
  list-style-position:inside;
}
.faq details p{padding:0 18px 14px;margin:0}
.faq details[open] summary{border-bottom:2px solid var(--ink)}

/* resources */
.resources{
  background:var(--paper);border:var(--border);border-radius:var(--radius);
  box-shadow:var(--shadow);
  padding:22px 24px;margin:2.5em 0 0;
}
.resources h2{margin-top:0;border:none;padding:0;font-size:1.3rem}
.res-note{font-size:.9rem;color:#333;margin-bottom:14px}
.resources ul{list-style:none;margin:0;padding:0}
.resources li{margin:10px 0;padding-left:0}
.res-tag{
  display:inline-block;font-family:var(--mono);font-size:.65rem;font-weight:700;
  text-transform:uppercase;letter-spacing:.04em;
  border:1.5px solid var(--ink);border-radius:999px;padding:1px 9px;margin-right:8px;
  background:#A9EDE8;vertical-align:2px;
}
.res-tag.yt{background:#C6D2FF}
.res-tag.official{background:var(--yellow)}
.res-tag.tool{background:#B4ECC3}
.resources a{font-weight:700;text-underline-offset:3px}
.res-why{color:#333;font-size:.92rem}

/* CTA boxes */
.cta-box{
  background:var(--yellow);border:var(--border);border-radius:var(--radius);
  box-shadow:var(--shadow-lg);
  padding:28px;margin:3em 0 0;
}
.cta-box h2{margin-top:0;border:none;padding:0}
.cta-wide{margin:0;text-align:center}
.cta-wide p{max-width:640px;margin:0 auto 1.4em}

/* disclaimer */
.disclaimer{
  font-family:var(--mono);font-size:.78rem;line-height:1.55;color:#444;
  border-top:2px solid var(--ink);margin-top:2.5em;padding-top:14px;
}

/* related */
.related{padding-bottom:64px}

/* footer */
.site-footer{background:var(--ink);color:var(--paper);border-top:var(--border);margin-top:40px}
.site-footer a{color:var(--paper);text-decoration:none}
.site-footer a:hover{text-decoration:underline;text-decoration-color:var(--accent);text-decoration-thickness:2px}
.footer-grid{
  display:grid;grid-template-columns:2fr 1fr 1fr;gap:36px;
  padding-top:44px;padding-bottom:28px;font-size:.95rem;
}
@media(max-width:760px){.footer-grid{grid-template-columns:1fr}}
.site-footer .logo{color:var(--paper)}
.site-footer .logo em{color:#9DB4FF}
.footer-head{font-family:var(--mono);font-weight:700;text-transform:uppercase;font-size:.75rem;letter-spacing:.06em;margin-bottom:10px}
.site-footer ul{list-style:none;margin:0;padding:0}
.site-footer li{margin:7px 0}
.footer-disclaimer{
  font-family:var(--mono);font-size:.76rem;line-height:1.55;color:#9a9a9a;
  border-top:1px solid #333;padding-top:16px;
}
.footer-bottom{
  display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;
  border-top:1px solid #333;padding-top:16px;padding-bottom:22px;
  font-size:.85rem;color:#bbb;
  font-family:var(--mono);
}