:root {
  --bg: #08090d;
  --bg-elevated: #12141c;
  --bg-elevated-2: #171a24;
  --border: #23273380;
  --border-strong: #2b3040;
  --text: #eceef4;
  --text-muted: #9aa1b2;
  --accent: #5eead4;
  --accent-strong: #22d3ee;
  --cta: #7c5cff;
  --cta-strong: #9b7bff;
  --gradient: linear-gradient(135deg, var(--accent) 0%, var(--accent-strong) 45%, var(--cta) 100%);
  --glow: 0 0 0 1px rgba(94, 234, 212, 0.08), 0 8px 30px -12px rgba(124, 92, 255, 0.35);
  --radius: 14px;
  --ease: cubic-bezier(0.16, 1, 0.3, 1);
  --max-width: 760px;
  --font-serif: Georgia, "Iowan Old Style", "Palatino Linotype", Palatino, serif;
}

* { box-sizing: border-box; }

::selection { background: rgba(124, 92, 255, 0.35); color: #fff; }

html { scroll-behavior: smooth; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  line-height: 1.65;
}

body {
  background-image:
    radial-gradient(700px circle at 12% -10%, rgba(124, 92, 255, 0.16), transparent 60%),
    radial-gradient(600px circle at 88% 0%, rgba(34, 211, 238, 0.12), transparent 55%);
  background-repeat: no-repeat;
}

.wrap {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 20px;
}

a { color: var(--accent-strong); text-decoration: none; transition: color 0.15s var(--ease); }
a:hover { text-decoration: underline; }

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  border-bottom: 1px solid var(--border);
  padding: 16px 0;
  background: rgba(8, 9, 13, 0.72);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}
.site-header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 900px;
  gap: 16px;
  flex-wrap: wrap;
}
.logo {
  display: flex;
  align-items: center;
  gap: 9px;
  font-weight: 800;
  font-size: 1.15rem;
  color: var(--text);
  letter-spacing: -0.01em;
}
.logo-icon { flex-shrink: 0; transition: transform 0.3s var(--ease); }
.logo:hover .logo-icon { transform: rotate(8deg); }
.logo-text span {
  background: var(--gradient);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.site-nav a {
  margin-left: 20px;
  color: var(--text-muted);
  font-size: 0.95rem;
  font-weight: 500;
}
.site-nav a:hover { color: var(--text); text-decoration: none; }
.site-nav a:first-child { margin-left: 0; }

/* Main */
main.wrap { max-width: 900px; padding-top: 52px; padding-bottom: 64px; }

.hero { max-width: 640px; margin-bottom: 44px; position: relative; }
.eyebrow {
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--accent);
  font-weight: 700;
  margin: 0 0 16px;
}
.hero h1 {
  font-family: var(--font-serif);
  font-weight: 400;
  font-size: clamp(2.1rem, 4.4vw, 3rem);
  margin-bottom: 16px;
  letter-spacing: -0.01em;
  line-height: 1.12;
  background: linear-gradient(120deg, #fff 30%, var(--accent) 70%, var(--accent-strong) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.hero p { color: var(--text-muted); font-size: 1.08rem; max-width: 54ch; }

/* Featured post */
.featured-post { margin-bottom: 52px; }
.featured-card {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 30px;
  align-items: center;
  position: relative;
  background: linear-gradient(180deg, var(--bg-elevated) 0%, var(--bg-elevated-2) 100%);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 22px;
  overflow: hidden;
  transition: transform 0.3s var(--ease), border-color 0.3s var(--ease), box-shadow 0.3s var(--ease);
}
.featured-card::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  padding: 1px;
  background: var(--gradient);
  opacity: 0;
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  transition: opacity 0.3s var(--ease);
  pointer-events: none;
}
.featured-card:hover {
  text-decoration: none;
  border-color: transparent;
  transform: translateY(-3px);
  box-shadow: var(--glow);
}
.featured-card:hover::before { opacity: 1; }
.featured-card-media {
  display: flex;
  align-items: center;
  justify-content: center;
  aspect-ratio: 1 / 1;
  border-radius: 14px;
  background: var(--bg);
  border: 1px solid var(--border);
  overflow: hidden;
}
.featured-card-media img { width: 100%; height: 100%; object-fit: contain; padding: 22px; }
.featured-card-body { display: flex; flex-direction: column; min-width: 0; }
.featured-card-eyebrow { display: flex; align-items: center; gap: 10px; margin-bottom: 12px; }
.featured-card-date { color: var(--text-muted); font-size: 0.8rem; }
.featured-card-title {
  font-family: var(--font-serif);
  font-size: clamp(1.3rem, 2.8vw, 1.75rem);
  font-weight: 400;
  line-height: 1.28;
  color: var(--text);
  letter-spacing: -0.005em;
  margin-bottom: 10px;
}
.featured-card-subtitle { color: var(--text-muted); font-size: 0.98rem; margin-bottom: 16px; }
.featured-card-link { color: var(--accent-strong); font-weight: 600; font-size: 0.92rem; }

/* Post list */
.post-list { margin-bottom: 44px; }
.post-list h2 {
  font-size: 0.85rem;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  margin-bottom: 20px;
  font-weight: 700;
}
.post-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.post-card {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  position: relative;
  background: linear-gradient(180deg, var(--bg-elevated) 0%, var(--bg-elevated-2) 100%);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  overflow: hidden;
  transition: transform 0.25s var(--ease), border-color 0.25s var(--ease), box-shadow 0.25s var(--ease);
}
.post-card::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  padding: 1px;
  background: var(--gradient);
  opacity: 0;
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  transition: opacity 0.25s var(--ease);
  pointer-events: none;
}
.post-card:hover {
  border-color: transparent;
  text-decoration: none;
  transform: translateY(-2px);
  box-shadow: var(--glow);
}
.post-card:hover::before { opacity: 1; }
.post-card-thumb {
  flex-shrink: 0;
  width: 52px;
  height: 52px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg);
  border: 1px solid var(--border);
  overflow: hidden;
}
.post-card-thumb img { width: 100%; height: 100%; object-fit: contain; padding: 6px; }
.post-card-thumb-fallback { background: linear-gradient(135deg, rgba(94, 234, 212, 0.1), rgba(124, 92, 255, 0.1)); }
.post-card-text { display: flex; flex-direction: column; min-width: 0; }
.post-card-date {
  display: block;
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-bottom: 4px;
  letter-spacing: 0.02em;
}
.post-card-title {
  display: block;
  font-size: 1rem;
  font-weight: 650;
  color: var(--text);
  letter-spacing: -0.005em;
  line-height: 1.35;
}
.post-card-excerpt {
  display: block;
  color: var(--text-muted);
  font-size: 0.88rem;
  margin-top: 4px;
  line-height: 1.4;
}

/* Post */
.post-header { max-width: 720px; margin-bottom: 32px; }
.post-meta {
  color: var(--text-muted);
  font-size: 0.8rem;
  margin-bottom: 12px;
  letter-spacing: 0.02em;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
}
.post-meta > span { position: relative; padding-left: 12px; }
.post-meta > span:first-child { padding-left: 0; }
.post-meta > span:not(:first-child):not(.post-meta-tag)::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 3px;
  height: 3px;
  border-radius: 50%;
  background: var(--text-muted);
}
.post-meta-tag {
  padding: 2px 10px !important;
  border-radius: 999px;
  border: 1px solid var(--border-strong);
  color: var(--accent);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-weight: 600;
}
.post-header h1 {
  font-family: var(--font-serif);
  font-weight: 400;
  font-size: clamp(1.7rem, 3.8vw, 2.3rem);
  letter-spacing: -0.005em;
  margin: 0 0 10px;
  line-height: 1.22;
}
.post-subtitle { color: var(--text-muted); font-size: 1.1rem; }
.post-content { max-width: 720px; }
.post-content h2 {
  margin-top: 44px;
  font-size: 1.35rem;
  letter-spacing: -0.01em;
  border-top: 1px solid var(--border);
  padding-top: 30px;
}
.post-content h3 { font-size: 1.1rem; color: var(--accent); margin-top: 24px; }
.post-content p { margin: 14px 0; }
.post-content ul { padding-left: 20px; }
.post-content a { text-underline-offset: 2px; }
.post-content blockquote {
  position: relative;
  border-left: 2px solid transparent;
  border-image: var(--gradient) 1;
  margin: 24px 0;
  padding: 12px 0 12px 18px;
  color: var(--text-muted);
  font-size: 0.95rem;
  background: linear-gradient(90deg, rgba(94, 234, 212, 0.06), transparent 60%);
  border-radius: 0 8px 8px 0;
}

/* Product image (used via kramdown IAL: {: .product-image}) */
img.product-image {
  display: block;
  width: 100%;
  max-width: 280px;
  height: auto;
  margin: 22px auto 8px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  box-shadow: 0 10px 34px -16px rgba(124, 92, 255, 0.45);
  transition: transform 0.4s var(--ease), box-shadow 0.4s var(--ease), border-color 0.4s var(--ease);
}
img.product-image:hover {
  transform: scale(1.015);
  border-color: var(--accent);
  box-shadow: 0 14px 40px -14px rgba(124, 92, 255, 0.6), 0 0 0 1px rgba(94, 234, 212, 0.35);
}

/* CTA button (used via kramdown IAL: {: .cta-button}) */
.cta-button {
  display: inline-block;
  background: var(--gradient);
  color: #06070a !important;
  font-weight: 700;
  padding: 11px 20px;
  border-radius: 10px;
  margin: 12px 0 6px;
  text-decoration: none !important;
  transition: transform 0.2s var(--ease), box-shadow 0.2s var(--ease);
  box-shadow: 0 4px 20px -6px rgba(124, 92, 255, 0.5);
}
.cta-button:hover {
  transform: translateY(-1px);
  box-shadow: 0 8px 28px -6px rgba(124, 92, 255, 0.7), 0 0 0 1px rgba(94, 234, 212, 0.3);
}

/* Footer */
.site-footer {
  position: relative;
  border-top: 1px solid var(--border);
  padding: 28px 0 40px;
  color: var(--text-muted);
  font-size: 0.85rem;
}
.site-footer::before {
  content: "";
  position: absolute;
  top: -1px;
  left: 0;
  width: 140px;
  height: 1px;
  background: var(--gradient);
}
.site-footer .disclosure { max-width: 640px; margin-top: 6px; }
.site-footer .footer-links { margin-top: 10px; font-size: 0.8rem; }
.site-footer .footer-links a { color: var(--text-muted); }
.site-footer .footer-links a:hover { color: var(--accent); }

/* Responsive */
@media (max-width: 640px) {
  main.wrap { padding-top: 32px; padding-bottom: 44px; }
  .hero { margin-bottom: 36px; }
  .site-nav a { margin-left: 14px; font-size: 0.9rem; }
  .featured-card { grid-template-columns: 1fr; padding: 16px; gap: 18px; }
  .featured-card-media { aspect-ratio: 16 / 10; }
  .post-grid { grid-template-columns: 1fr; }
  .post-card { padding: 14px; }
  .post-content h2 { margin-top: 34px; padding-top: 22px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .post-card, .featured-card, .cta-button, a { transition: none; }
}