:root {
  --bg: #0a0a0f;
  --bg-2: #0f0f18;
  --card: #131321;
  --card-2: #181828;
  --border: #2a2a40;
  --border-2: #3a3a55;
  --text: #f5f5f7;
  --text-body: #dcdce5;
  --muted: #9ca3af;
  --muted-2: #6b7280;
  --orange: #ff8a4c;
  --orange-deep: #cc785c;
  --violet: #a78bfa;
  --violet-deep: #7c3aed;
  --green: #4ade80;
  --amber: #fbbf24;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--orange); text-decoration: none; transition: color .15s; }
a:hover { text-decoration: underline; }
code, .mono { font-family: 'JetBrains Mono', monospace; }

/* NAV */
nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(10,10,15,0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
  padding: 14px 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.logo {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 700;
  font-size: 1.15rem;
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--text);
}
.logo:hover { text-decoration: none; }
.logo-mark {
  width: 32px; height: 32px;
  background: linear-gradient(135deg, var(--orange), var(--violet-deep));
  border-radius: 8px;
  display: flex; align-items: center; justify-content: center;
  font-size: 1rem;
  box-shadow: 0 4px 16px rgba(255,138,76,0.25);
}
.nav-links { display: flex; gap: 28px; list-style: none; }
.nav-links a { font-size: 0.85rem; color: var(--muted); font-weight: 500; }
.nav-links a:hover { color: var(--text); text-decoration: none; }
.nav-cta {
  background: linear-gradient(135deg, var(--orange), var(--orange-deep));
  color: #1a0f08 !important;
  padding: 9px 18px;
  border-radius: 8px;
  font-size: 0.82rem;
  font-weight: 700;
  box-shadow: 0 4px 14px rgba(255,138,76,0.3);
  transition: transform .15s;
}
.nav-cta:hover { transform: translateY(-1px); text-decoration: none; }

/* ARTICLE HERO */
.article-hero {
  position: relative;
  padding: 90px 32px 56px;
  text-align: center;
  border-bottom: 1px solid var(--border);
  background:
    radial-gradient(ellipse 600px 300px at 50% 40%, rgba(255,138,76,0.10), transparent 70%),
    linear-gradient(180deg, var(--bg-2), var(--bg));
  overflow: hidden;
}
.article-hero .eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255,138,76,0.10);
  border: 1px solid rgba(255,138,76,0.28);
  color: var(--orange);
  padding: 5px 14px;
  border-radius: 999px;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  margin-bottom: 24px;
  text-transform: uppercase;
}
.article-hero h1 {
  font-family: 'Space Grotesk', sans-serif;
  font-size: clamp(2rem, 5vw, 3.2rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.1;
  max-width: 820px;
  margin: 0 auto 22px;
}
.article-hero .dek {
  font-size: 1.08rem;
  color: var(--muted);
  max-width: 640px;
  margin: 0 auto 26px;
  line-height: 1.6;
}
.article-meta {
  display: inline-flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 20px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.78rem;
  color: var(--muted);
}
.article-meta span { display: inline-flex; align-items: center; gap: 6px; }
.article-meta .tag {
  background: rgba(167,139,250,0.15);
  color: var(--violet);
  padding: 3px 10px;
  border-radius: 5px;
  letter-spacing: 0.06em;
  font-weight: 700;
  text-transform: uppercase;
  font-family: 'Inter', sans-serif;
  font-size: 0.7rem;
}

/* ARTICLE BODY */
.article-body {
  max-width: 720px;
  margin: 0 auto;
  padding: 64px 32px 96px;
  font-size: 1.06rem;
  line-height: 1.8;
  color: var(--text-body);
}
.article-body p { margin: 0 0 1.3rem; }
.article-body strong { color: var(--text); font-weight: 600; }
.article-body em { color: var(--text); font-style: italic; }
.article-body h2 {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.7rem;
  font-weight: 700;
  margin-top: 3rem;
  margin-bottom: 1rem;
  color: var(--text);
  letter-spacing: -0.01em;
  line-height: 1.2;
}
.article-body h3 {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.22rem;
  font-weight: 600;
  margin-top: 2rem;
  margin-bottom: 0.6rem;
  color: var(--text);
}
.article-body h4 {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.05rem;
  font-weight: 600;
  margin-top: 1.6rem;
  margin-bottom: 0.4rem;
  color: var(--text);
}
.article-body ul, .article-body ol {
  margin: 0 0 1.5rem 1.5rem;
}
.article-body li {
  margin-bottom: 0.5rem;
  padding-left: 4px;
}
.article-body li::marker { color: var(--orange); }
.article-body code {
  background: #1a1a28;
  padding: 2px 7px;
  border-radius: 4px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.88em;
  color: var(--orange);
  border: 1px solid var(--border);
}
.article-body pre {
  background: #07070c;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 18px 22px;
  overflow-x: auto;
  margin: 1.6rem 0;
  line-height: 1.55;
}
.article-body pre code {
  background: none;
  color: var(--text-body);
  padding: 0;
  font-size: 0.84em;
  border: none;
}
.article-body blockquote {
  border-left: 3px solid var(--violet);
  padding: 4px 20px;
  margin: 1.5rem 0;
  color: var(--muted);
  font-style: italic;
  background: rgba(167,139,250,0.04);
  border-radius: 0 6px 6px 0;
}

.callout {
  border-left: 3px solid var(--orange);
  background: rgba(255,138,76,0.06);
  padding: 16px 22px;
  margin: 1.8rem 0;
  border-radius: 0 8px 8px 0;
  font-size: 0.98rem;
}
.callout strong { color: var(--orange); }
.callout.violet { border-left-color: var(--violet); background: rgba(167,139,250,0.06); }
.callout.violet strong { color: var(--violet); }
.callout.green { border-left-color: var(--green); background: rgba(74,222,128,0.05); }
.callout.green strong { color: var(--green); }

.product-cta {
  background: linear-gradient(135deg, rgba(255,138,76,0.10), rgba(167,139,250,0.10));
  border: 1px solid var(--border-2);
  border-radius: 14px;
  padding: 28px;
  margin: 2.4rem 0;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 24px;
  align-items: center;
}
.product-cta .label {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.7rem;
  color: var(--orange);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 6px;
}
.product-cta .name {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 6px;
}
.product-cta .desc {
  font-size: 0.9rem;
  color: var(--muted);
  line-height: 1.5;
}
.product-cta .buy {
  background: linear-gradient(135deg, var(--orange), var(--orange-deep));
  color: #1a0f08 !important;
  padding: 13px 24px;
  border-radius: 9px;
  font-weight: 700;
  font-size: 0.9rem;
  white-space: nowrap;
  transition: transform .15s, box-shadow .15s;
  box-shadow: 0 4px 16px rgba(255,138,76,0.28);
}
.product-cta .buy:hover {
  text-decoration: none;
  transform: translateY(-2px);
  box-shadow: 0 8px 22px rgba(255,138,76,0.4);
}
.product-cta .price-tag {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 4px;
  display: block;
}
.product-cta .price-tag small { font-size: 0.78rem; color: var(--muted); font-weight: 400; }

.toc {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 20px 24px;
  margin: 0 0 2.4rem;
  font-size: 0.92rem;
}
.toc-title {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.72rem;
  color: var(--orange);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 10px;
}
.toc ol { margin: 0 0 0 1.2rem; }
.toc li { margin-bottom: 4px; line-height: 1.5; }
.toc a { color: var(--text-body); }
.toc a:hover { color: var(--orange); }

.author {
  border-top: 1px solid var(--border);
  padding: 28px 0 0;
  margin-top: 2.4rem;
  display: flex;
  gap: 16px;
  align-items: center;
}
.author .avatar {
  width: 48px; height: 48px;
  background: linear-gradient(135deg, var(--orange), var(--violet-deep));
  border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 700;
  color: #1a0f08;
  font-size: 0.95rem;
  flex-shrink: 0;
}
.author .name {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text);
}
.author .bio { font-size: 0.84rem; color: var(--muted); line-height: 1.5; }

.related {
  border-top: 1px solid var(--border);
  background: var(--bg-2);
  padding: 64px 32px;
}
.related-inner { max-width: 1100px; margin: 0 auto; }
.related h3 {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.4rem;
  font-weight: 700;
  margin-bottom: 28px;
}
.related-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 18px;
}
.related-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 22px;
  transition: all .2s;
  color: var(--text);
  display: block;
}
.related-card:hover {
  border-color: var(--orange);
  transform: translateY(-2px);
  text-decoration: none;
  box-shadow: 0 8px 24px rgba(0,0,0,0.3);
}
.related-card .ttype {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.7rem;
  color: var(--orange);
  letter-spacing: 0.08em;
  margin-bottom: 10px;
  text-transform: uppercase;
}
.related-card .tt {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--text);
  line-height: 1.3;
}
.related-card .td { font-size: 0.85rem; color: var(--muted); line-height: 1.55; }

/* FOOTER */
footer {
  background: #050508;
  padding: 48px 32px 32px;
  border-top: 1px solid var(--border);
}
.footer-inner {
  max-width: 1180px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 32px;
}
.footer-col h4 {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 0.82rem;
  color: var(--text);
  margin-bottom: 14px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
.footer-col ul { list-style: none; display: flex; flex-direction: column; gap: 8px; }
.footer-col a { font-size: 0.85rem; color: var(--muted); }
.footer-col a:hover { color: var(--orange); text-decoration: none; }
.footer-about p { font-size: 0.85rem; color: var(--muted); line-height: 1.6; margin-top: 12px; }
.footer-bottom {
  max-width: 1180px;
  margin: 0 auto;
  padding-top: 24px;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 14px;
  font-size: 0.78rem;
  color: var(--muted-2);
}

@media (max-width: 760px) {
  nav { padding: 12px 18px; }
  .nav-links { display: none; }
  .article-hero { padding: 60px 18px 40px; }
  .article-body { padding: 48px 18px 72px; font-size: 1.02rem; }
  .article-body h2 { font-size: 1.45rem; }
  .product-cta { grid-template-columns: 1fr; text-align: left; }
  .footer-inner { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 520px) {
  .footer-inner { grid-template-columns: 1fr; }
}