:root{
  --bg:#0b1220;
  --panel:#0f1b33;
  --panel2:#101d38;
  --text:#e9eefb;
  --muted:#a9b3cf;
  --line:rgba(255,255,255,.10);
  --accent:#6ea8ff;
  --accent2:#76f2c2;
  --shadow: 0 12px 30px rgba(0,0,0,.35);
  --radius:16px;
  --radius2:22px;
  --max:1100px;
}

*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Arial, "Noto Sans", "Helvetica Neue", sans-serif;
  background: radial-gradient(1200px 800px at 20% 0%, rgba(110,168,255,.22), transparent 60%),
              radial-gradient(900px 600px at 90% 10%, rgba(118,242,194,.14), transparent 55%),
              var(--bg);
  color:var(--text);
  line-height:1.55;
}

a{color:var(--text);text-decoration:none}
a:hover{opacity:.9;text-decoration:underline}
code{background:rgba(255,255,255,.06);padding:.15rem .35rem;border-radius:8px;border:1px solid var(--line)}
.container{width:100%;max-width:var(--max);margin:0 auto;padding:0 18px}

.site-header{
  border-bottom:1px solid var(--line);
  background: linear-gradient(180deg, rgba(15,27,51,.85), rgba(11,18,32,.3));
  position:sticky;
  top:0;
  z-index:10;
  backdrop-filter: blur(10px);
}

.header-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding:14px 0;
  gap:14px;
}

.brand{display:flex;align-items:center;gap:10px}
.brand-mark{
  width:34px;height:34px;border-radius:12px;
  display:grid;place-items:center;
  background: linear-gradient(135deg, rgba(110,168,255,.95), rgba(118,242,194,.85));
  color:#081021;
  font-weight:800;
  box-shadow: var(--shadow);
}
.brand-text{font-weight:700;letter-spacing:.2px}

.nav{display:flex;align-items:center;gap:14px}
.nav-link{
  padding:10px 12px;border-radius:12px;
  border:1px solid transparent;
  color:var(--muted);
}
.nav-link.is-active, .nav-link:hover{
  color:var(--text);
  border-color:var(--line);
  text-decoration:none;
  background:rgba(255,255,255,.04);
}

.nav-toggle{
  display:none;
  width:44px;height:44px;
  border-radius:14px;
  border:1px solid var(--line);
  background:rgba(255,255,255,.04);
  cursor:pointer;
}
.nav-toggle span{
  display:block;
  width:18px;height:2px;
  background:var(--text);
  margin:4px auto;
  border-radius:2px;
}

.header-hero{padding:18px 0 18px}
.hero-title{margin:8px 0 6px;font-size:28px}
.hero-subtitle{margin:0 0 14px;color:var(--muted);max-width:760px}

.hero-actions{display:flex;gap:10px;flex-wrap:wrap;margin:10px 0 14px}

.btn{
  display:inline-flex;align-items:center;justify-content:center;
  padding:10px 14px;border-radius:14px;
  border:1px solid rgba(110,168,255,.35);
  background:rgba(110,168,255,.16);
  color:var(--text);
  font-weight:650;
  box-shadow: 0 10px 22px rgba(0,0,0,.22);
  text-decoration:none;
}
.btn:hover{text-decoration:none;transform: translateY(-1px)}
.btn-ghost{
  background:rgba(255,255,255,.04);
  border:1px solid var(--line);
}
.btn-small{padding:9px 12px;border-radius:12px;font-weight:650}

.search{margin:10px 0}
.search-input{
  width:100%;
  padding:12px 14px;
  border-radius:16px;
  border:1px solid var(--line);
  background:rgba(255,255,255,.04);
  color:var(--text);
  outline:none;
}
.search-input::placeholder{color:rgba(169,179,207,.75)}

.tags{display:flex;gap:8px;flex-wrap:wrap}
.tag{
  padding:8px 10px;
  border-radius:999px;
  border:1px solid var(--line);
  background:rgba(255,255,255,.04);
  color:var(--muted);
  cursor:pointer;
}
.tag:hover{color:var(--text)}

.main{padding:22px 0 40px}

.grid{
  display:grid;
  grid-template-columns: 320px 1fr;
  gap:18px;
  align-items:start;
}

.sidebar{position:sticky;top:128px;display:flex;flex-direction:column;gap:14px}

.card{
  background: linear-gradient(180deg, rgba(16,29,56,.9), rgba(15,27,51,.78));
  border:1px solid var(--line);
  border-radius: var(--radius2);
  padding:16px;
  box-shadow: var(--shadow);
}
.card-title{margin:0 0 10px;font-size:16px}
.muted{color:var(--muted)}
.list{margin:0;padding-left:18px;color:var(--muted)}
.ad-placeholder{
  height:220px;
  border-radius:16px;
  border:1px dashed rgba(255,255,255,.22);
  background: rgba(255,255,255,.03);
  margin-top:12px;
}

.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:10px;margin-bottom:10px}
.section-head h2{margin:0;font-size:18px}
.posts{
  display:grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap:14px;
}
.post{
  display:flex;
  flex-direction:column;
  gap:10px;
  padding:16px;
  border-radius: var(--radius2);
  border:1px solid var(--line);
  background: linear-gradient(180deg, rgba(255,255,255,.05), rgba(255,255,255,.03));
  box-shadow: 0 10px 24px rgba(0,0,0,.20);
}
.post:hover{transform: translateY(-2px)}
.post .meta{display:flex;gap:10px;flex-wrap:wrap;color:var(--muted);font-size:13px}
.badge{
  padding:4px 8px;border-radius:999px;
  border:1px solid rgba(110,168,255,.35);
  background: rgba(110,168,255,.12);
  color: var(--text);
  font-size:12px;
}
.post h3{margin:0;font-size:18px;line-height:1.25}
.post p{margin:0;color:var(--muted)}
.post .readmore{margin-top:auto;color:var(--text);opacity:.9}

.tip ol{margin:10px 0 0;padding-left:18px}

.site-footer{
  border-top:1px solid var(--line);
  padding:18px 0 28px;
  background: rgba(15,27,51,.35);
}
.footer-inner{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap}
.footer-links{display:flex;gap:14px;color:var(--muted)}
.footer-links a{color:var(--muted)}
.footer-links a:hover{color:var(--text)}

.article{
  max-width: 820px;
  margin: 0 auto;
  padding: 22px 0 44px;
}
.article h1{margin:10px 0 8px;font-size:30px;line-height:1.15}
.article .meta{color:var(--muted);display:flex;gap:10px;flex-wrap:wrap;margin-bottom:14px}
.article .cover{
  height: 220px;
  border-radius: var(--radius2);
  border:1px solid var(--line);
  background:
    radial-gradient(500px 250px at 20% 0%, rgba(110,168,255,.28), transparent 60%),
    radial-gradient(500px 250px at 80% 20%, rgba(118,242,194,.18), transparent 60%),
    rgba(255,255,255,.03);
  margin: 12px 0 16px;
}
.article p{color:var(--text);opacity:.92}
.article .muted{opacity:1}

.inline-ad{
  margin: 18px 0;
  padding: 14px;
  border-radius: var(--radius2);
  border: 1px dashed rgba(255,255,255,.22);
  background: rgba(255,255,255,.03);
}
hr{
  border:0;
  border-top:1px solid var(--line);
  margin:18px 0;
}

@media (max-width: 960px){
  .grid{grid-template-columns: 1fr}
  .sidebar{position:relative;top:auto}
  .posts{grid-template-columns: 1fr}
  .nav{display:none}
  .nav-toggle{display:inline-block}
  .site-header.is-open .nav{
    display:flex;
    flex-direction:column;
    align-items:flex-start;
    gap:6px;
    padding: 0 0 14px;
  }
  .header-inner{align-items:flex-start}
}