/* Trend-site premium theme v2.
   Per-site identity comes from CSS vars injected on :root (see base.html).
   Design tokens: Fraunces display serif + Inter body, generous whitespace,
   card hover physics, article TOC, callouts, breadcrumbs. */
:root{
  --primary:#1a56db; --accent:#f59e0b; --bg:#ffffff; --ink:#101828;
  --muted:#667085; --line:#e7eaf0; --surface:#f8fafc;
  --font-head:'Fraunces',Georgia,'Times New Roman',serif;
  --font-body:'Inter',system-ui,-apple-system,'Segoe UI',Roboto,sans-serif;
  --radius:14px;
  --shadow-sm:0 1px 2px rgba(16,24,40,.06);
  --shadow-md:0 8px 24px rgba(16,24,40,.10);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--font-body);
  line-height:1.75;font-size:17px;-webkit-font-smoothing:antialiased}
::selection{background:color-mix(in srgb,var(--primary) 22%,transparent)}
img{max-width:100%;height:auto;display:block}
a{color:var(--primary);text-decoration:none}
a:hover{text-decoration:underline}
.container{max-width:1120px;margin:0 auto;padding:0 24px}

/* ---------- header ---------- */
.site-header{border-bottom:1px solid var(--line);background:color-mix(in srgb,var(--bg) 88%,transparent);
  backdrop-filter:blur(10px);position:sticky;top:0;z-index:50}
.site-header .container{display:flex;align-items:center;justify-content:space-between;
  gap:16px;padding-top:13px;padding-bottom:13px;flex-wrap:wrap}
.brand{display:flex;align-items:center;gap:11px}
.brand:hover{text-decoration:none}
.brand-mark{width:38px;height:38px;border-radius:11px;flex:none;
  background:linear-gradient(135deg,var(--primary),color-mix(in srgb,var(--primary) 55%,var(--accent)));
  color:#fff;display:flex;align-items:center;justify-content:center;
  font-family:var(--font-head);font-weight:700;font-size:1.25rem;box-shadow:var(--shadow-sm)}
.brand-name{font-family:var(--font-head);font-weight:700;font-size:1.28rem;color:var(--ink);line-height:1.15}
.brand-name small{display:block;font-family:var(--font-body);font-weight:500;font-size:.7rem;
  color:var(--muted);letter-spacing:.09em;text-transform:uppercase}
.nav{display:flex;gap:2px;flex-wrap:wrap}
.nav a{padding:8px 13px;border-radius:9px;color:#344054;font-size:.93rem;font-weight:500}
.nav a:hover{background:var(--surface);text-decoration:none;color:var(--ink)}
.nav a.active{background:var(--primary);color:#fff}

/* ---------- breadcrumbs ---------- */
.crumbs{font-size:.83rem;color:var(--muted);padding:18px 0 0}
.crumbs a{color:var(--muted)}
.crumbs span.sep{margin:0 8px;opacity:.5}

/* ---------- hero variants ---------- */
.hero{border-bottom:1px solid var(--line);overflow:hidden}
/* split (default): text left, image right */
.hero-split{background:
  radial-gradient(1100px 320px at 85% -40px,color-mix(in srgb,var(--primary) 14%,transparent),transparent),
  linear-gradient(180deg,color-mix(in srgb,var(--primary) 5%,var(--bg)),var(--bg))}
.hero-split .hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:44px;align-items:center;padding:64px 24px}
/* centered: text centered, no image */
.hero-centered{background:
  radial-gradient(900px 300px at 50% -60px,color-mix(in srgb,var(--primary) 16%,transparent),transparent),
  radial-gradient(700px 260px at 85% 120%,color-mix(in srgb,var(--accent) 12%,transparent),transparent)}
.hero-centered .hero-inner{max-width:760px;margin:0 auto;text-align:center;padding:72px 24px}
/* banner: full-bleed image with overlay */
.hero-banner{position:relative;color:#fff;border-bottom:none}
.hero-banner .hero-bg{position:absolute;inset:0}
.hero-banner .hero-bg img{width:100%;height:100%;object-fit:cover}
.hero-banner .hero-bg::after{content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(8,12,24,.62),rgba(8,12,24,.78))}
.hero-banner .hero-inner{position:relative;max-width:820px;margin:0 auto;padding:96px 24px}
.hero-banner .eyebrow{color:#fff;background:rgba(255,255,255,.14);border-color:rgba(255,255,255,.25)}
.hero-banner .lead{color:rgba(255,255,255,.85)}
.eyebrow{display:inline-block;font-size:.74rem;font-weight:700;letter-spacing:.1em;text-transform:uppercase;
  color:var(--primary);margin-bottom:14px;padding:6px 12px;border:1px solid color-mix(in srgb,var(--primary) 30%,transparent);
  border-radius:999px;background:color-mix(in srgb,var(--primary) 7%,transparent)}
.hero h1{font-family:var(--font-head);font-weight:700;font-size:2.7rem;line-height:1.12;
  margin:0 0 18px;letter-spacing:-.01em}
.lead{font-size:1.12rem;color:var(--muted);margin:0;max-width:56ch}
.hero-media img{border-radius:18px;box-shadow:var(--shadow-md);border:1px solid var(--line)}

/* ---------- cards ---------- */
.cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(320px,1fr));gap:22px;margin:30px 0 10px}
.card{border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:#fff;
  transition:transform .18s ease,box-shadow .18s ease}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md)}
.card a{color:inherit;display:block;height:100%}
.card a:hover{text-decoration:none}
.card-media{overflow:hidden;aspect-ratio:16/9;background:var(--surface)}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.card:hover .card-media img{transform:scale(1.045)}
.card-body{padding:20px 20px 22px}
.card-kicker{font-size:.72rem;font-weight:700;letter-spacing:.09em;text-transform:uppercase;
  color:var(--primary);margin-bottom:8px}
.card-body h3{font-family:var(--font-head);font-weight:600;font-size:1.18rem;line-height:1.35;margin:0 0 9px}
.card-body p{font-size:.92rem;color:var(--muted);margin:0 0 12px;display:-webkit-box;
  -webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.read-more{font-size:.88rem;font-weight:600;color:var(--primary)}
.read-more::after{content:" →";transition:margin .15s}
.card:hover .read-more::after{margin-left:3px}

/* ---------- article ---------- */
.article-wrap{max-width:800px;padding-bottom:24px}
.article-head{padding:26px 0 6px}
.article-head h1{font-family:var(--font-head);font-weight:700;font-size:2.35rem;line-height:1.18;
  margin:0 0 14px;letter-spacing:-.015em}
.byline{display:flex;align-items:center;gap:10px;font-size:.86rem;color:var(--muted);margin:0 0 22px;flex-wrap:wrap}
.byline .dot{width:4px;height:4px;border-radius:50%;background:#c3cad4}
.article-hero{margin:0 0 28px}
.article-hero img{border-radius:var(--radius);width:100%;border:1px solid var(--line)}
.article-hero figcaption{font-size:.82rem;color:var(--muted);margin-top:8px;text-align:center}
.article-body h2{font-family:var(--font-head);font-weight:600;font-size:1.62rem;line-height:1.3;
  margin:2.1em 0 .7em;letter-spacing:-.01em}
.article-body h3{font-size:1.18rem;font-weight:650;margin:1.7em 0 .55em}
.article-body p{margin:0 0 1.15em}
.article-body strong{font-weight:650}
.article-body ul,.article-body ol{margin:0 0 1.25em;padding-left:1.35em}
.article-body li{margin-bottom:.45em}
.article-body li::marker{color:var(--primary)}
.article-body table{width:100%;border-collapse:collapse;margin:1.5em 0;font-size:.93rem;
  display:block;overflow-x:auto;border:1px solid var(--line);border-radius:10px}
.article-body th,.article-body td{border-bottom:1px solid var(--line);padding:11px 14px;text-align:left;white-space:nowrap}
.article-body th{background:var(--surface);font-weight:650;font-size:.85rem;text-transform:none}
.article-body tr:last-child td{border-bottom:none}
.article-body hr{border:none;border-top:1px solid var(--line);margin:2.4em 0}
.article-body code{background:var(--surface);border:1px solid var(--line);padding:.12em .42em;
  border-radius:6px;font-size:.87em;font-family:ui-monospace,SFMono-Regular,Menlo,monospace}
.article-body pre{background:#0f172a;color:#e2e8f0;padding:18px;border-radius:12px;overflow-x:auto;line-height:1.6}
.article-body pre code{background:none;border:none;padding:0;color:inherit}

/* table of contents */
.toc{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  padding:20px 24px;margin:0 0 2em}
.toc-title{font-size:.78rem;font-weight:700;letter-spacing:.09em;text-transform:uppercase;
  color:var(--muted);margin-bottom:10px}
.toc ul{margin:0;padding:0;list-style:none;columns:2;column-gap:28px}
.toc li{margin-bottom:7px;break-inside:avoid}
.toc a{font-size:.92rem;color:#344054}
.toc a:hover{color:var(--primary)}

/* callouts: generated from "> [!TIP]" / "> [!WARN]" in markdown */
.callout{border-radius:12px;padding:15px 18px;margin:1.5em 0;border:1px solid;font-size:.95rem}
.callout p{margin:0}
.callout p+p{margin-top:.6em}
.callout-tip{background:#f0fdf4;border-color:#bbf7d0}
.callout-tip::before{content:"Tip · ";font-weight:700;color:#15803d}
.callout-warn{background:#fffbeb;border-color:#fde68a}
.callout-warn::before{content:"Note · ";font-weight:700;color:#b45309}

/* faq accordions */
.article-body details{border:1px solid var(--line);border-radius:12px;margin-bottom:12px;background:#fff;overflow:hidden}
.article-body summary{cursor:pointer;padding:15px 20px;font-weight:600;list-style:none;
  display:flex;justify-content:space-between;align-items:center;gap:12px}
.article-body summary::-webkit-details-marker{display:none}
.article-body summary::after{content:"+";font-size:1.3rem;color:var(--primary);flex:none;transition:transform .15s}
.article-body details[open] summary::after{transform:rotate(45deg)}
.article-body details .faq-a{padding:0 20px 18px;color:#344054}
.article-body details .faq-a p{margin:.4em 0}

/* related */
.related{margin-top:3.2em;padding:24px;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius)}
.related h2{font-size:1.05rem!important;font-family:var(--font-body)!important;font-weight:700;
  border:none!important;margin:0 0 12px!important;padding:0!important}
.related ul{margin:0;padding:0;list-style:none;display:grid;gap:8px}
.related a{font-weight:500}

/* hub page body */
.page-body{padding-top:10px;padding-bottom:48px}
.page-body h2{font-family:var(--font-head);font-weight:600;font-size:1.7rem;margin:1.9em 0 .6em;letter-spacing:-.01em}
.section-head{display:flex;align-items:baseline;justify-content:space-between;gap:12px;margin:2em 0 .4em}
.section-head h2{margin:0}

/* ---------- footer ---------- */
.site-footer{border-top:1px solid var(--line);margin-top:56px;padding:36px 0;background:var(--surface)}
.site-footer .foot-grid{display:flex;justify-content:space-between;gap:24px;flex-wrap:wrap;align-items:flex-start}
.site-footer p{margin:.3em 0;font-size:.9rem;color:var(--muted)}
.fine{font-size:.78rem!important;color:#98a2b3;max-width:70ch}

/* ---------- responsive ---------- */
@media (max-width:760px){
  .hero-split .hero-grid{grid-template-columns:1fr;padding:44px 24px;gap:28px}
  .hero h1{font-size:2rem}
  .hero-centered .hero-inner,.hero-banner .hero-inner{padding:56px 24px}
  .article-head h1{font-size:1.75rem}
  .toc ul{columns:1}
  body{font-size:16px}
}