:root{
  --bg1:#0b1f47; --bg2:#0a2b4f; --bg3:#0a1020;
  --card: rgba(255,255,255,.08);
  --card2: rgba(255,255,255,.06);
  --border: rgba(255,255,255,.10);
  --text: rgba(255,255,255,.92);
  --muted: rgba(255,255,255,.72);
  --muted2: rgba(255,255,255,.60);
  --shadow: 0 25px 70px rgba(0,0,0,.35);
  --radius: 22px;
  --blue1:#0ea5e9; --blue2:#2563eb;
}

*{ box-sizing:border-box; }
html,body{ height:100%; }

body{
  margin:0;
  font-family: system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;
  color: var(--text);
  background:
    radial-gradient(600px 300px at 15% 10%, rgba(59,130,246,0.18), transparent),
    radial-gradient(400px 240px at 85% 20%, rgba(14,165,233,0.14), transparent),
    linear-gradient(135deg, var(--bg1), var(--bg2), var(--bg3));
}

a{ color: inherit; text-decoration:none; }
a:hover{ text-decoration:underline; }

.container{
  max-width: 980px;
  margin: 0 auto;
  padding: 26px 16px 56px;
}

/* ======================================================
   FULL-BLEED LEARN HEADER (matches React)
   ====================================================== */

.learn-header{
  position: relative;
  z-index: 10;
}

.learn-header-inner{
  max-width: 72rem; /* max-w-6xl */
  margin: 0 auto;
  padding: 24px 16px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap: 24px;
}

.learn-brand{
  display:flex;
  align-items:center;
}

.learn-logo{
  height: clamp(110px, 7vw, 190px);
  width: auto;
  filter: drop-shadow(0 10px 25px rgba(0,0,0,.4));
}

.learn-nav{
  display:flex;
  align-items:center;
  gap: 12px;
}

.learn-nav a{
  padding: 8px 14px;
  border-radius: 10px;
  font-size: 14px;
  font-weight: 600;
  color: rgba(255,255,255,.85);
}

.learn-nav a:hover{
  color: white;
  background: rgba(255,255,255,.10);
}

.nav-cta{
  font-weight: 700;
  color: white;
  background: linear-gradient(90deg, var(--blue1), var(--blue2));
  box-shadow: 0 10px 30px rgba(37,99,235,.35);
}

.nav-cta:hover{
  filter: brightness(1.05);
}

/* ======================================================
   EXISTING HEADER / CARD STYLES (kept for page sections)
   ====================================================== */

.header{
  border: 1px solid var(--border);
  background: var(--card2);
  border-radius: var(--radius);
  padding: 18px 18px 14px;
  margin-bottom: 14px;
}

.header-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap: 14px;
}

.brand{
  display:flex;
  align-items:center;
  gap: 10px;
  font-weight: 900;
  letter-spacing: -.02em;
}

.brand-badge{
  width: 38px; height: 38px;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--blue1), var(--blue2));
  display:grid;
  place-items:center;
  box-shadow: 0 18px 40px rgba(37,99,235,.35);
  font-weight: 900;
}

.brand small{
  display:block;
  color: var(--muted2);
  font-weight: 600;
  letter-spacing:0;
}

.brand-logo{
  height: 56px;
  width: auto;
}

.navlinks{
  display:flex;
  align-items:center;
  gap: 10px;
  flex-wrap: wrap;
}

.pill{
  display:inline-flex;
  align-items:center;
  gap: 8px;
  padding: 8px 12px;
  border-radius: 999px;
  background: rgba(255,255,255,.08);
  border: 1px solid var(--border);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  color: var(--muted);
  font-size: 13px;
  font-weight: 600;
  text-decoration:none !important;
}
.pill:hover{ color: var(--text); background: rgba(255,255,255,.10); }

/* ======================================================
   BUTTONS
   ====================================================== */

.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap: 8px;
  padding: 10px 14px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: rgba(255,255,255,.08);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  font-weight: 800;
  font-size: 14px;
  text-decoration:none !important;
}
.btn:hover{ background: rgba(255,255,255,.10); }

.btn-primary{
  border: none;
  background: linear-gradient(90deg, var(--blue1), var(--blue2));
  box-shadow: 0 18px 40px rgba(37,99,235,.30);
}
.btn-primary:hover{ filter: brightness(1.05); }

/* ======================================================
   PAGE SHELL
   ====================================================== */

.shell{
  border: 1px solid var(--border);
  background: var(--card);
  border-radius: calc(var(--radius) + 6px);
  padding: 18px;
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
}

/* ======================================================
   TYPOGRAPHY
   ====================================================== */

.kicker{
  display:inline-flex;
  align-items:center;
  gap: 8px;
  padding: 6px 10px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: rgba(255,255,255,.06);
  color: var(--muted);
  font-size: 12px;
  font-weight: 700;
}
.kicker a{ text-decoration:none !important; }
.kicker a:hover{ text-decoration:none !important; color: var(--text); }

.dot{ width:8px; height:8px; border-radius:999px; background: var(--blue1); }

h1{ margin: 10px 0 6px; font-size: clamp(30px, 4.5vw, 46px); line-height: 1.08; letter-spacing: -.03em; }
h2{ margin: 26px 0 10px; font-size: 22px; letter-spacing: -.01em; }
h3{ margin: 20px 0 8px; font-size: 18px; letter-spacing: -.01em; }

.muted{ color: var(--muted); }
.lede{ color: var(--muted); margin: 10px 0 0; line-height: 1.65; max-width: 70ch; }

/* ======================================================
   BREADCRUMBS
   ====================================================== */

.crumbs{
  display:flex; flex-wrap:wrap; gap: 8px;
  font-size: 13px;
  color: var(--muted);
  margin-bottom: 10px;
}
.crumbs a{ color: var(--muted); }
.crumbs a:hover{ color: var(--text); text-decoration:none; }
.sep{ opacity: .6; }

/* ======================================================
   CARDS / GRIDS
   ====================================================== */

.grid{ display:grid; gap: 12px; }

.card{
  border: 1px solid var(--border);
  background: rgba(255,255,255,.06);
  border-radius: var(--radius);
  padding: 16px;
  box-shadow: 0 20px 60px rgba(0,0,0,.25);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}
.card:hover{ background: rgba(255,255,255,.075); }

.card-title{ font-weight: 900; letter-spacing: -.01em; }
.card-desc{ margin-top: 6px; color: var(--muted); line-height: 1.55; font-size: 14px; }

/* ======================================================
   ARTICLE LAYOUT (NEW)
   ====================================================== */

.article-page{ padding: 6px 0 0; }

.article-hero{
  border: 1px solid var(--border);
  background: var(--card2);
  border-radius: var(--radius);
  padding: 18px 18px 16px;
  margin-bottom: 14px;
}

.article-title{ margin-top: 10px; }

.meta-row{
  display:flex;
  flex-wrap: wrap;
  gap: 8px;
  color: var(--muted2);
  font-size: 13px;
  font-weight: 650;
}

.article-actions{
  display:flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 14px;
}

.article-layout{
  display:grid;
  grid-template-columns: minmax(0, 1fr) 320px;
  gap: 18px;
  align-items:start;
}

.article-aside{
  position: sticky;
  top: 14px;
}

.toc-card,
.aside-card{
  border: 1px solid var(--border);
  background: rgba(255,255,255,.06);
  border-radius: var(--radius);
  padding: 14px;
  box-shadow: 0 18px 50px rgba(0,0,0,.20);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  margin-bottom: 12px;
}

.toc-title,
.aside-title{
  font-weight: 900;
  letter-spacing: -.01em;
  font-size: 13px;
  color: rgba(255,255,255,.88);
  margin-bottom: 10px;
}

.toc{
  font-size: 13px;
  color: var(--muted);
}

.toc ul{ margin: 0; padding-left: 16px; }
.toc li{ margin: 6px 0; }
.toc a{ color: rgba(255,255,255,.82); text-decoration:none !important; }
.toc a:hover{ color: var(--text); text-decoration:none !important; }

.share-row{
  display:flex;
  flex-wrap: wrap;
  gap: 10px;
}

.mini-related{
  display:flex;
  flex-direction: column;
  gap: 10px;
}

.mini-link{
  color: rgba(255,255,255,.82);
  font-size: 13px;
  line-height: 1.35;
  text-decoration:none !important;
}
.mini-link:hover{
  color: var(--text);
  text-decoration:none !important;
}

/* ======================================================
   PROSE
   ====================================================== */

.prose{ padding: 10px 6px 4px; }
.prose p{ margin: 14px 0; line-height: 1.75; color: rgba(255,255,255,.88); }
.prose ul, .prose ol{ margin: 12px 0 14px 22px; line-height: 1.75; color: rgba(255,255,255,.88); }
.prose li{ margin: 6px 0; }

.prose a{ color: rgba(125,211,252,.95); }
.prose a:hover{ color: rgba(186,230,253,.98); text-decoration: underline; }

.prose blockquote{
  margin: 16px 0;
  padding: 12px 14px;
  border-left: 3px solid rgba(14,165,233,.55);
  border-radius: 14px;
  background: rgba(255,255,255,.05);
  color: var(--muted);
}

.prose code{
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: .92em;
  padding: 2px 6px;
  border-radius: 10px;
  background: rgba(0,0,0,.22);
  border: 1px solid rgba(255,255,255,.10);
}

.prose pre{
  margin: 16px 0;
  padding: 14px;
  border-radius: 18px;
  overflow:auto;
  background: rgba(0,0,0,.28);
  border: 1px solid rgba(255,255,255,.10);
}
.prose pre code{ padding:0; border:none; background: transparent; }

/* ✅ Remove the annoying pilcrow / header anchor glyph (common markdown renderers) */
.prose a.headerlink,
.prose .headerlink,
.prose a.anchorlink,
.prose .anchorlink{
  display:none !important;
}

/* ======================================================
   MOBILE
   ====================================================== */

@media (max-width: 900px){
  .article-layout{ grid-template-columns: 1fr; }
  .article-aside{ position: static; }
}

@media (max-width: 640px){
  .learn-header-inner{
    flex-direction: column;
    align-items: flex-start;
  }
  .container{ padding-top: 18px; }
  .shell{ padding: 14px; }
  .article-hero{ padding: 16px; }
}