:root{
  --accent:#ff6600;
  --accent-dark:#e05500;
  --ink:#1a1a1a;
  --muted:#666;
  --bg:#f5f6f8;
  --card:#ffffff;
  --border:#e6e8eb;
  --radius:10px;
}
*{box-sizing:border-box}
body{
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Arial,sans-serif;
  margin:0;line-height:1.65;color:var(--ink);background:var(--bg);
}
a{color:var(--accent-dark);text-decoration:none}
a:hover{text-decoration:underline}
header.hero{
  background:linear-gradient(135deg,#0f172a,#1e293b);
  color:#fff;padding:3.5rem 1.5rem;text-align:center;
}
header.hero h1{margin:0 0 .5rem;font-size:2.4rem}
header.hero p{margin:0;color:#cbd5e1;font-size:1.1rem}
nav.topnav{
  background:#111827;padding:.8rem 1rem;text-align:center;
  position:sticky;top:0;z-index:10;box-shadow:0 2px 8px rgba(0,0,0,.15);
}
nav.topnav a{color:#e5e7eb;margin:0 1rem;font-weight:500;font-size:.95rem}
nav.topnav a:hover{color:var(--accent);text-decoration:none}
main{max-width:1100px;margin:2rem auto;padding:0 1.2rem}
.blog-toolbar{
  display:flex;gap:.8rem;flex-wrap:wrap;align-items:center;
  margin-bottom:1.8rem;background:var(--card);padding:1rem;border-radius:var(--radius);
  border:1px solid var(--border);
}
.blog-toolbar input[type="search"]{
  flex:1;min-width:200px;padding:.6rem .9rem;border:1px solid var(--border);
  border-radius:8px;font-size:1rem;
}
.tag-filters{display:flex;gap:.4rem;flex-wrap:wrap}
.tag-btn{
  border:1px solid var(--border);background:#fff;color:var(--muted);
  padding:.35rem .8rem;border-radius:999px;font-size:.85rem;cursor:pointer;
}
.tag-btn.active,.tag-btn:hover{background:var(--accent);color:#fff;border-color:var(--accent)}
.post-grid{
  display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:1.4rem;
}
.post-card{
  background:var(--card);border:1px solid var(--border);border-radius:var(--radius);
  overflow:hidden;display:flex;flex-direction:column;transition:transform .15s,box-shadow .15s;
}
.post-card:hover{transform:translateY(-3px);box-shadow:0 10px 24px rgba(0,0,0,.08)}
.post-card img{width:100%;height:170px;object-fit:cover;background:#e2e8f0}
.post-card .body{padding:1rem 1.1rem 1.2rem;display:flex;flex-direction:column;flex:1}
.post-card h3{margin:.2rem 0 .5rem;font-size:1.1rem;line-height:1.35}
.post-card h3 a{color:var(--ink)}
.post-card p.desc{color:var(--muted);font-size:.92rem;flex:1;margin:0 0 .8rem}
.post-meta{font-size:.78rem;color:#94a3b8;margin-bottom:.4rem}
.post-tags{display:flex;gap:.35rem;flex-wrap:wrap;margin-top:.3rem}
.post-tags span{
  background:#f1f5f9;color:#475569;font-size:.72rem;padding:.15rem .55rem;border-radius:999px;
}
.read-more{font-weight:600;font-size:.9rem}
.empty-state{display:none;text-align:center;color:var(--muted);padding:3rem 0}
article.post{
  background:var(--card);border:1px solid var(--border);border-radius:var(--radius);
  padding:2rem;max-width:860px;margin:0 auto;
}
article.post .post-hero-img{width:100%;max-height:360px;object-fit:cover;border-radius:8px;margin-bottom:1.4rem}
article.post h1{font-size:2rem;margin-top:0}
article.post .post-meta{margin-bottom:1.4rem}
article.post pre{background:#0b1220;color:#d6e1ff;padding:1rem;border-radius:8px;overflow:auto;font-size:.85rem}
article.post code{background:#f1f5f9;padding:0 5px;border-radius:4px}
article.post pre code{background:none;padding:0}
article.post h2{border-bottom:2px solid #eef2f6;padding-bottom:.4rem;margin-top:2rem}
.cta-back{display:inline-block;margin-top:2rem;font-weight:600}
footer.site-footer{
  background:#111827;color:#9ca3af;text-align:center;padding:1.6rem 1rem;margin-top:3rem;font-size:.9rem
}
.share-row{display:flex;gap:.6rem;margin-top:1.6rem}
.share-row a{
  border:1px solid var(--border);padding:.4rem .8rem;border-radius:8px;font-size:.85rem;color:var(--ink);
}
@media(max-width:600px){
  header.hero h1{font-size:1.8rem}
  article.post{padding:1.2rem}
}

/* ---------- Homepage ---------- */
.home-hero{
  background:linear-gradient(135deg,#0f172a 0%,#1e3a5f 55%,#1e293b 100%);
  color:#fff;padding:5rem 1.5rem 4rem;text-align:center;
}
.home-hero .eyebrow{
  display:inline-block;background:rgba(255,102,0,.15);color:#ffb27a;
  border:1px solid rgba(255,102,0,.4);padding:.3rem .9rem;border-radius:999px;
  font-size:.8rem;letter-spacing:.04em;text-transform:uppercase;margin-bottom:1.2rem;
}
.home-hero h1{font-size:2.8rem;margin:0 0 .8rem;font-weight:700}
.home-hero p.tagline{font-size:1.2rem;color:#cbd5e1;max-width:640px;margin:0 auto 1.8rem}
.home-hero .btn-row{display:flex;gap:.9rem;justify-content:center;flex-wrap:wrap}
.btn{
  display:inline-block;padding:.75rem 1.6rem;border-radius:8px;font-weight:600;font-size:.95rem;
  text-decoration:none;transition:transform .15s;
}
.btn:hover{transform:translateY(-2px);text-decoration:none}
.btn-primary{background:var(--accent);color:#fff}
.btn-secondary{background:transparent;color:#fff;border:1px solid rgba(255,255,255,.35)}

section.section{max-width:1100px;margin:0 auto;padding:3.5rem 1.4rem}
section.section.alt{background:#fff}
.section-head{text-align:center;margin-bottom:2.4rem}
.section-head .kicker{color:var(--accent-dark);font-weight:700;font-size:.82rem;text-transform:uppercase;letter-spacing:.05em}
.section-head h2{font-size:2rem;margin:.3rem 0 0;color:var(--ink)}

.about-grid{display:flex;gap:2.5rem;align-items:center;flex-wrap:wrap}
.about-grid img{width:200px;height:200px;object-fit:cover;border-radius:50%;box-shadow:0 8px 24px rgba(0,0,0,.12);flex-shrink:0}
.about-grid .about-text{flex:1;min-width:280px;color:#3a3f47;font-size:1.02rem}

.skills-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:1.2rem}
.skill-card{
  background:var(--card);border:1px solid var(--border);border-radius:var(--radius);
  padding:1.4rem;text-align:center;
}
.skill-card .icon{font-size:.75rem;letter-spacing:.06em;text-transform:uppercase;color:var(--accent-dark);font-weight:700;margin-bottom:.5rem}
.skill-card h3{margin:0 0 .4rem;font-size:1.02rem}
.skill-card p{margin:0;color:var(--muted);font-size:.88rem}

.projects-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:1.4rem}
.project-card{
  background:var(--card);border:1px solid var(--border);border-radius:var(--radius);
  overflow:hidden;
}
.project-card img{width:100%;height:170px;object-fit:cover}
.project-card .body{padding:1.1rem 1.2rem 1.3rem}
.project-card h3{margin:0 0 .5rem;font-size:1.08rem}
.project-card p{margin:0;color:var(--muted);font-size:.92rem}

.contact-box{
  background:var(--card);border:1px solid var(--border);border-radius:var(--radius);
  padding:2.4rem;text-align:center;max-width:640px;margin:0 auto;
}
.contact-box .links{display:flex;gap:1.6rem;justify-content:center;flex-wrap:wrap;margin-top:1.2rem}
.contact-box .links a{font-weight:600}

@media(max-width:600px){
  .home-hero h1{font-size:2rem}
  .about-grid{flex-direction:column;text-align:center}
}