:root{
  --bg-start:#0b0c10;
  --bg-end:#111827;
  --surface:#0f1420;
  --card:#121826dd;
  --text:#e5e7eb;
  --muted:#9aa3af;
  --brand:#60a5fa;
  --accent:#a78bfa;
  --border:#23242a;
}

*{box-sizing:border-box}

html,body{
  margin:0;
  padding:0;
  min-height:100%;
  color:var(--text);
  background: radial-gradient(1200px 600px at 20% -10%, #1f2937 10%, transparent 60%),
              radial-gradient(900px 500px at 120% 20%, #0ea5e9 0%, transparent 60%),
              linear-gradient(160deg,var(--bg-start),var(--bg-end));
  font:16px/1.6 system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, "Helvetica Neue", Arial, "Noto Sans", "Apple Color Emoji", "Segoe UI Emoji";
}

a{color:var(--brand);text-decoration:none}
a:hover{text-decoration:underline}

.container{max-width:980px;margin:0 auto;padding:1.25rem}

.site-header{
  position:sticky; top:0; z-index:50;
  backdrop-filter: saturate(150%) blur(12px);
  background: color-mix(in lab, var(--surface) 70%, transparent);
  border-bottom:1px solid var(--border);
}
.nav-wrap{display:flex;align-items:center;justify-content:space-between}
.brand{margin:0;font-size:1.1rem}
.brand a{color:var(--text);text-decoration:none}

.topnav a{
  display:inline-block; margin-left:.5rem; padding:.45rem .8rem;
  border:1px solid var(--border);
  border-radius:999px;
  background:linear-gradient(180deg,#0d1320,#0b101a);
  transition:transform .12s ease, border-color .12s ease;
  color:var(--muted);
}
.topnav a:hover{transform:translateY(-1px);border-color:#2b2f38;color:var(--text);text-decoration:none}

.site-footer{
  margin-top:2rem;
  border-top:1px solid var(--border);
  background:#0e121a;
  padding:1rem 1.25rem;
  text-align:center;
  color:var(--muted);
}

/* Hero / Esittely */
.hero{
  display:grid; gap:1.2rem; grid-template-columns: 120px 1fr; align-items:center;
  margin:1.25rem 0 1.5rem;
  background:linear-gradient(180deg, #0f1420, #0c1018);
  border:1px solid var(--border);
  border-radius:22px;
  padding:1.2rem;
  box-shadow: 0 10px 30px rgba(0,0,0,.25);
}
.hero .avatar{
  width:110px; height:110px; border-radius:999px; overflow:hidden; border:2px solid #1f2937;
  box-shadow: 0 8px 24px rgba(0,0,0,.35), inset 0 0 0 6px #0b0f15;
}
.hero .avatar img{width:100%;height:100%;object-fit:cover;display:block}
.hero h2{margin:.1rem 0 .35rem;font-size:1.6rem}
.hero p{margin:0;color:#d1d5db}
.hero .chips{margin-top:.55rem}
.chips .chip{
  display:inline-block; margin:.2rem .25rem 0 0; padding:.25rem .6rem; font-size:.85rem;
  border:1px solid var(--border); border-radius:999px; color:#cbd5e1;
  background:linear-gradient(180deg,#0c1320,#0a0f18);
}

/* Blogilistaus */
.section-title{margin:1.4rem 0 .6rem; font-size:1.25rem; color:#e6e9ee}
.post-list{display:grid;gap:1rem;grid-template-columns: repeat(auto-fill,minmax(260px,1fr));margin:0 0 1.5rem}
.card{
  background:var(--card);
  border:1px solid var(--border);
  border-radius:16px;
  padding:1rem 1.1rem;
  transition:transform .08s ease, box-shadow .12s ease, border-color .12s ease;
  box-shadow: 0 6px 18px rgba(0,0,0,.2);
}
.card:hover{ transform:translateY(-2px); border-color:#2b2f38; box-shadow: 0 10px 26px rgba(0,0,0,.28) }
.card h3{margin:.1rem 0 .3rem; font-size:1.1rem}
.card .meta{color:var(--muted); font-size:.9rem; margin-bottom:.35rem}
.card p{margin:.25rem 0 0}

/* Artikkelin sisältö */
.article{
  background:var(--card);
  border:1px solid var(--border);
  border-radius:18px;
  padding:1.25rem 1.35rem;
  box-shadow: 0 10px 30px rgba(0,0,0,.25);
}
.article h1,.article h2,.article h3{scroll-margin-top:90px}
.article pre{
  overflow:auto;background:#0b0d12;border:1px solid var(--border);
  border-radius:12px;padding:.85rem
}
.article code{
  background:#0f1117;border:1px solid var(--border);
  border-radius:6px;padding:.1rem .35rem;
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,"Liberation Mono",monospace;
  font-size:.95em
}
blockquote{
  margin:1rem 0; padding:.5rem .9rem; border-left:3px solid var(--brand);
  color:#d1d5db; background:#