:root{
  --paper:#FFFFFF;
  --ink:#1C1B19;
  --ink-soft:#5A574E;
  --line: rgba(28,27,25,0.18);
  --line-strong: rgba(28,27,25,0.32);
  --blue:#D9432E;
  --pink:#E85D75;
  --purple:#F2942E;
  --gradient: linear-gradient(90deg, var(--pink), var(--blue), var(--purple));
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0; color:var(--ink);
  background:linear-gradient(180deg, #FAF8F5 0%, #BFC5CC 100%); background-attachment:fixed;
  font-family:'IBM Plex Sans', sans-serif; -webkit-font-smoothing:antialiased;
}
h1,h2{font-family:'Archivo', sans-serif; font-weight:700; line-height:1.1; margin:0; letter-spacing:-0.02em;}
h1{font-weight:800;}
p{margin:0;}
a{color:inherit;}
.eyebrow{
  font-family:'IBM Plex Mono', monospace; font-size:0.72rem; letter-spacing:0.14em; text-transform:uppercase;
  color:var(--ink-soft); display:inline-flex; align-items:center; gap:8px;
}
.eyebrow::before{content:''; width:8px; height:8px; background:var(--gradient); display:inline-block; flex-shrink:0;}

/* header */
.gradient-bar{height:4px; background:var(--gradient); position:sticky; top:0; z-index:101;}
.site-nav{
  position:sticky; top:0; z-index:100;
  background:linear-gradient(180deg, #FAF8F5 0%, #BFC5CC 100%); background-attachment:fixed; backdrop-filter:blur(6px);
  border-bottom:1px solid var(--line);
}
.nav-inner{max-width:1180px; margin:0 auto; display:flex; align-items:center; justify-content:space-between; padding:18px 28px; gap:16px; flex-wrap:wrap;}
.logo{display:flex; align-items:center;}
.links{display:flex; gap:2px; flex-wrap:wrap;}
.links a{text-decoration:none; font-size:0.92rem; padding:8px 14px; color:var(--ink-soft); position:relative;}
.links a:hover{color:var(--ink);}
.links a.active{color:var(--ink); font-weight:500;}
.links a.active::after{content:''; position:absolute; left:14px; right:14px; bottom:2px; height:1px; background:var(--blue);}

/* article */
.article{max-width:760px; margin:0 auto; padding:48px 28px 64px;}
.crumbs{display:flex; align-items:center; gap:8px; font-size:0.78rem; color:var(--ink-soft); margin-bottom:28px; min-width:0;}
.crumbs a{text-decoration:none;}
.crumbs a:hover{text-decoration:underline;}
.crumb-current{white-space:nowrap; overflow:hidden; text-overflow:ellipsis; min-width:0;}
.article h1{font-size:clamp(1.8rem,4vw,2.5rem); margin:14px 0 26px;}
.hero{margin:0 0 32px; border:1px solid var(--line); background:rgba(255,255,255,0.75);}
.hero img{width:100%; height:auto; aspect-ratio:16/10; object-fit:cover; display:block;}
.article-body{background:rgba(255,255,255,0.75); border:1px solid var(--line); padding:34px 38px 38px; position:relative;}
.article-body::before,.article-body::after{content:''; position:absolute; width:10px; height:10px; pointer-events:none;}
.article-body::before{top:-2px; left:-2px; border-top:2px solid var(--blue); border-left:2px solid var(--blue);}
.article-body::after{bottom:-2px; right:-2px; border-bottom:2px solid var(--blue); border-right:2px solid var(--blue);}
.article-body h2{font-size:1.2rem; margin:30px 0 10px;}
.article-body h2:first-child{margin-top:0;}
.article-body p{color:var(--ink-soft); font-size:1.02rem; line-height:1.7;}

.article-body ul{margin:12px 0 14px; padding-left:22px; color:var(--ink-soft); font-size:1.02rem; line-height:1.7;}
.article-body li{margin-bottom:6px;}
.article-body p + p{margin-top:14px;}
.article-body ul + p{margin-top:12px;}
.article-body a{color:var(--blue); text-underline-offset:3px;}
.article-body a:hover{color:var(--ink);}

.article-body h3{font-family:'Archivo', sans-serif; font-weight:700; font-size:1.02rem; margin:22px 0 6px;}
.article-body strong{color:var(--ink); font-weight:600;}
.cta p a{color:var(--blue); text-underline-offset:3px;}

.cta{margin:40px 0 0; padding:28px 32px; background:rgba(255,255,255,0.75); border:1px solid var(--line);}
.cta h2{font-size:1.2rem; margin-bottom:10px;}
.cta p{color:var(--ink-soft); font-size:0.96rem; line-height:1.6; margin-bottom:18px;}
.btn{display:inline-block; padding:12px 22px; font-size:0.9rem; font-weight:500; border:1px solid var(--ink); background:var(--ink); color:#fff; text-decoration:none; margin:0 10px 8px 0;}
.btn:hover{background:var(--blue); border-color:var(--blue);}
.btn-ghost{background:transparent; color:var(--ink);}
.btn-ghost:hover{background:var(--ink); border-color:var(--ink); color:#fff;}

.related{margin-top:44px;}
.related h2{font-size:1.1rem; margin-bottom:14px;}
.related ul{list-style:none; margin:0; padding:0; display:grid; gap:12px;}
.related a{display:flex; flex-direction:column; gap:4px; padding:16px 20px; background:rgba(255,255,255,0.75); border:1px solid var(--line); text-decoration:none;}
.related a:hover{border-color:var(--line-strong);}
.rel-title{font-family:'Archivo', sans-serif; font-weight:700; font-size:1rem; line-height:1.25;}
.rel-meta{font-family:'IBM Plex Mono', monospace; font-size:0.66rem; text-transform:uppercase; letter-spacing:0.05em; color:var(--ink-soft);}

footer{border-top:1px solid var(--line);}
.footer-inner{max-width:1180px; margin:0 auto; padding:32px 28px; display:flex; justify-content:space-between; flex-wrap:wrap; gap:16px; font-size:0.82rem; color:var(--ink-soft);}
.flinks{display:flex; gap:18px; flex-wrap:wrap;}
.flinks a{text-decoration:none; color:var(--ink-soft);}
.flinks a:hover{color:var(--ink);}

@media (max-width:600px){
  .article{padding:32px 18px 48px;}
  .article-body{padding:24px 20px 28px;}
  .nav-inner{padding:14px 18px;}
}