@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=JetBrains+Mono:wght@400;500&display=swap');

#isaac-site *, #isaac-site *::before, #isaac-site *::after { box-sizing: border-box; margin: 0; padding: 0; }

#isaac-site {
  --void: #04040e;
  --glass-bg: rgba(255,255,255,0.035);
  --glass-border: rgba(255,255,255,0.07);
  --mercury-blue: #7dd3fc;
  --mercury-violet: #a78bfa;
  --mercury-chrome: #c0c0c0;
  --mercury-teal: #5eead4;
  --text-1: #e2e8f0;
  --text-2: #94a3b8;
  --text-3: #64748b;
  --r-sm: 8px;
  --r-md: 12px;
  --r-lg: 16px;
  --body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --mono: 'JetBrains Mono', 'SF Mono', monospace;
  background: var(--void);
  color: var(--text-1);
  font-family: var(--body);
  font-weight: 400;
  overflow-x: hidden;
  width: 100%;
  min-height: 100vh;
  position: relative;
  -webkit-font-smoothing: antialiased;
}

/* Nebula */
#isaac-site::before {
  content: ''; position: fixed; inset: 0; z-index: -2; pointer-events: none;
  background:
    radial-gradient(ellipse 900px 700px at 15% 25%, rgba(167,139,250,0.07), transparent),
    radial-gradient(ellipse 700px 500px at 85% 15%, rgba(125,211,252,0.05), transparent),
    radial-gradient(ellipse 1000px 600px at 55% 85%, rgba(139,92,246,0.04), transparent);
}

/* Starfield */
#isaac-site::after {
  content: ''; position: fixed; inset: 0; z-index: -1; pointer-events: none;
  background-image:
    radial-gradient(1px 1px at 15px 25px, rgba(255,255,255,0.8), transparent),
    radial-gradient(1px 1px at 92px 58px, rgba(255,255,255,0.5), transparent),
    radial-gradient(1.5px 1.5px at 155px 82px, rgba(125,211,252,0.9), transparent),
    radial-gradient(1px 1px at 48px 110px, rgba(255,255,255,0.4), transparent),
    radial-gradient(1px 1px at 180px 35px, rgba(255,255,255,0.7), transparent),
    radial-gradient(1.5px 1.5px at 70px 145px, rgba(167,139,250,0.7), transparent),
    radial-gradient(1px 1px at 210px 115px, rgba(255,255,255,0.45), transparent),
    radial-gradient(1px 1px at 35px 175px, rgba(255,255,255,0.6), transparent);
  background-size: 320px 230px;
  animation: star-drift 80s linear infinite;
}
@keyframes star-drift { from { transform: translateY(0); } to { transform: translateY(-220px); } }

/* Header */
#isaac-site .site-header {
  width: 100%; padding: 1.5rem 3rem; display: flex; justify-content: space-between; align-items: center;
  border-bottom: 1px solid var(--glass-border);
  backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
  background: rgba(4,4,14,0.8);
  position: sticky; top: 0; z-index: 100;
}
#isaac-site .logo {
  font-weight: 700; font-size: 1rem; letter-spacing: -0.01em; text-decoration: none;
  background: linear-gradient(135deg, var(--mercury-blue), var(--mercury-violet));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
}
#isaac-site .nav-links { display: flex; gap: 2rem; align-items: center; }
#isaac-site .nav-link, #isaac-site .site-header a:not(.logo):not(.nav-cta) {
  font-size: 0.8rem; color: var(--text-3); text-decoration: none; transition: color 0.2s;
}
#isaac-site .nav-link:hover, #isaac-site .site-header a:not(.logo):not(.nav-cta):hover { color: var(--text-1); }
#isaac-site .nav-cta {
  font-family: var(--mono); font-size: 0.7rem; font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase;
  color: #000; background: linear-gradient(135deg, var(--mercury-blue), var(--mercury-violet));
  padding: 0.5rem 1.2rem; border-radius: var(--r-sm); text-decoration: none; transition: all 0.3s;
}
#isaac-site .nav-cta:hover { filter: brightness(1.2); }

/* Article */
#isaac-site article { padding: 4rem 5rem; max-width: 820px; margin: 0 auto; }
#isaac-site article .post-tag, #isaac-site .section-tag {
  font-family: var(--mono); font-size: 0.65rem; letter-spacing: 0.15em; text-transform: uppercase;
  color: var(--mercury-blue); margin-bottom: 2rem; display: flex; align-items: center; gap: 0.8rem;
}
#isaac-site article .post-tag::before, #isaac-site .section-tag::before {
  content: ''; display: block; width: 2rem; height: 1px; background: var(--mercury-blue);
}
#isaac-site article h1 {
  font-weight: 700; font-size: clamp(2rem, 4vw, 3.2rem); line-height: 1.05; letter-spacing: -0.03em; margin-bottom: 1.5rem;
  background: linear-gradient(135deg, var(--mercury-blue), var(--mercury-violet), var(--mercury-chrome));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
}
#isaac-site article .post-subtitle {
  font-size: 0.95rem; line-height: 1.8; color: var(--text-2); margin-bottom: 3rem; max-width: 56ch;
}
#isaac-site article h2 {
  font-weight: 700; font-size: 1.5rem; margin-top: 3.5rem; margin-bottom: 1rem;
  color: var(--mercury-blue); letter-spacing: -0.02em;
}
#isaac-site article h3 {
  font-weight: 600; font-size: 1.1rem; margin-top: 2.5rem; margin-bottom: 0.8rem; color: var(--text-1);
}
#isaac-site article p { font-size: 0.9rem; line-height: 1.9; color: var(--text-2); margin-bottom: 1.2rem; }
#isaac-site article strong { color: var(--text-1); font-weight: 500; }
#isaac-site article em { color: var(--mercury-teal); font-style: italic; }
#isaac-site article a { color: var(--mercury-blue); text-decoration: none; }
#isaac-site article a:hover { text-decoration: underline; }

/* Blockquote */
#isaac-site article blockquote {
  border-left: 2px solid var(--mercury-violet); padding: 1rem 1.5rem; margin: 1.5rem 0;
  background: rgba(167,139,250,0.04); border-radius: 0 var(--r-sm) var(--r-sm) 0;
  font-style: italic; color: var(--text-1); font-size: 0.95rem;
}

/* Code */
#isaac-site article pre {
  background: rgba(255,255,255,0.025); border: 1px solid var(--glass-border);
  border-radius: var(--r-md); padding: 1.2rem 1.5rem; margin: 1.5rem 0;
  overflow-x: auto; font-size: 0.8rem; line-height: 1.6; color: var(--text-2);
}
#isaac-site article code { font-family: var(--mono); font-size: 0.85em; color: var(--mercury-teal); }
#isaac-site article pre code { color: var(--text-2); }

/* Lists */
#isaac-site article ul, #isaac-site article ol {
  margin: 1rem 0 1.2rem 1.5rem; font-size: 0.9rem; line-height: 1.9; color: var(--text-2);
}
#isaac-site article li { margin-bottom: 0.3rem; }
#isaac-site article li::marker { color: var(--mercury-blue); }

/* HR */
#isaac-site article hr {
  border: none; height: 1px; margin: 3rem 0;
  background: linear-gradient(90deg, transparent, rgba(125,211,252,0.3), rgba(167,139,250,0.3), transparent);
}

/* Post nav */
#isaac-site .post-nav {
  display: flex; justify-content: space-between; padding: 2rem 0;
  border-top: 1px solid var(--glass-border); margin-top: 4rem;
}
#isaac-site .post-nav a { color: var(--mercury-blue); text-decoration: none; font-size: 0.85rem; }
#isaac-site .post-nav a:hover { color: var(--text-1); }

/* Section */
#isaac-site .section { padding: 5rem; }
#isaac-site .section-dark {
  background: var(--glass-bg); border-top: 1px solid var(--glass-border); border-bottom: 1px solid var(--glass-border);
}

/* Footer */
#isaac-site .site-footer {
  padding: 2rem 5rem 4rem; border-top: 1px solid var(--glass-border);
  display: flex; justify-content: space-between; align-items: center;
  font-size: 0.7rem; color: var(--text-3);
}

/* Blog index cards */
#isaac-site .blog-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1.5rem; margin-top: 2rem; }
#isaac-site .blog-card {
  background: var(--glass-bg); backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border); border-radius: var(--r-lg);
  padding: 2rem; text-decoration: none; color: var(--text-1);
  transition: all 0.3s; position: relative; overflow: hidden;
}
#isaac-site .blog-card::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 1px;
  background: linear-gradient(90deg, transparent, rgba(125,211,252,0.25) 20%, rgba(167,139,250,0.35) 50%, transparent);
  animation: shimmer 4s ease-in-out infinite alternate;
}
@keyframes shimmer { 0% { opacity: .4; transform: translateX(-10%); } 100% { opacity: 1; transform: translateX(10%); } }
#isaac-site .blog-card:hover {
  border-color: rgba(125,211,252,0.15);
  box-shadow: 0 0 40px rgba(125,211,252,0.06), 0 12px 40px rgba(0,0,0,0.4);
  transform: translateY(-2px);
}
#isaac-site .blog-card h3 { font-weight: 600; font-size: 1.05rem; margin-bottom: 0.5rem; }
#isaac-site .blog-card p { font-size: 0.8rem; line-height: 1.6; color: var(--text-2); }
#isaac-site .blog-card .read-link {
  font-family: var(--mono); font-size: 0.7rem; letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--mercury-blue); margin-top: 1rem; display: block;
}

/* Blog CTA */
#isaac-site .blog-cta {
  margin: 0 auto 2rem; max-width: 820px; padding: 2.5rem 3rem;
  background: var(--glass-bg); backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border); border-radius: var(--r-lg);
  position: relative; overflow: hidden;
}
#isaac-site .blog-cta::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 2px;
  background: linear-gradient(90deg, transparent, var(--cta-accent, var(--mercury-blue)) 30%, var(--cta-accent, var(--mercury-blue)) 70%, transparent);
}
#isaac-site .blog-cta-transform { --cta-accent: var(--mercury-teal); }
#isaac-site .blog-cta-build { --cta-accent: var(--mercury-violet); }
#isaac-site .blog-cta-learn { --cta-accent: var(--mercury-blue); }
#isaac-site .blog-cta-label {
  font-weight: 600; font-size: 1.15rem; color: var(--text-1); margin-bottom: 0.5rem;
}
#isaac-site .blog-cta-desc {
  font-size: 0.85rem; line-height: 1.7; color: var(--text-2); margin-bottom: 1.5rem; max-width: 52ch;
}
#isaac-site .blog-cta-actions { display: flex; align-items: center; gap: 1.5rem; flex-wrap: wrap; }
#isaac-site .blog-cta-primary {
  font-family: var(--mono); font-size: 0.7rem; font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase;
  color: #000; background: linear-gradient(135deg, var(--cta-accent, var(--mercury-blue)), var(--mercury-violet));
  padding: 0.6rem 1.5rem; border-radius: var(--r-sm); text-decoration: none; transition: all 0.3s;
}
#isaac-site .blog-cta-primary:hover { filter: brightness(1.2); transform: translateY(-1px); }
#isaac-site .blog-cta-secondary {
  font-family: var(--mono); font-size: 0.7rem; letter-spacing: 0.08em; text-transform: uppercase;
  color: var(--cta-accent, var(--mercury-blue)); text-decoration: none; transition: color 0.2s;
}
#isaac-site .blog-cta-secondary:hover { color: var(--text-1); }

/* Responsive */
@media (max-width: 900px) {
  #isaac-site article { padding: 3rem 2rem; }
  #isaac-site .site-header { padding: 1rem 1.5rem; }
  #isaac-site .site-footer { flex-direction: column; gap: 1rem; text-align: center; padding: 2rem; }
  #isaac-site .blog-grid { grid-template-columns: 1fr; }
  #isaac-site .section { padding: 3rem 2rem; }
  #isaac-site .blog-cta { margin: 0 1.5rem; padding: 2rem 1.5rem; }
  #isaac-site .blog-cta-actions { flex-direction: column; align-items: flex-start; gap: 1rem; }
}