:root{
  --bg:#0f1020;
  --card: rgba(255,255,255,0.04);
  --glass: rgba(255,255,255,0.06);
  --accent-1: linear-gradient(135deg,#7b61ff 0%, #ff6b9a 100%);
  --accent-2: linear-gradient(135deg,#00d4ff 0%, #7b61ff 100%);
  --text: #eaf0ff;
  --muted: #9aa6bf;
  --radius: 14px;
  --maxw: 1100px;
  font-family: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial;
  color-scheme: dark;
}

*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  background: radial-gradient(1200px 600px at 10% 10%, rgba(123,97,255,0.08), transparent),
              radial-gradient(900px 400px at 90% 90%, rgba(0,212,255,0.04), transparent),
              var(--bg);
  color:var(--text);
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
  line-height:1.4;
}

/* Header */
.site-header{
  position:sticky;
  top:0;
  z-index:40;
  backdrop-filter: blur(8px) saturate(120%);
  background: linear-gradient(180deg, rgba(15,16,32,0.6), rgba(15,16,32,0.35));
  border-bottom: 1px solid rgba(255,255,255,0.03);
}

.header-inner{
  max-width:var(--maxw);
  margin:0 auto;
  display:flex;
  align-items:center;
  gap:16px;
  padding:14px;
  padding-left:18px;
}

.brand{
  display:flex;
  align-items:baseline;
  gap:8px;
  text-decoration:none;
  color:var(--text);
  font-weight:700;
}
.brand-mark{
  font-size:1.05rem;
  background:var(--accent-1);
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
}
.brand-sub{
  font-size:0.95rem;
  color:var(--muted);
}

/* Menu button */
.menu-btn{
  display:flex;
  align-items:center;
  justify-content:center;
  background:transparent;
  border:0;
  color:var(--text);
  padding:8px;
  border-radius:10px;
  cursor:pointer;
}
.menu-btn:focus{outline:2px solid rgba(123,97,255,0.25)}

/* Side nav */
.side-nav{
  position:fixed;
  left:14px;
  top:70px;
  transform:translateY(-10px);
  min-width:210px;
  background:linear-gradient(180deg, rgba(255,255,255,0.02), rgba(255,255,255,0.01));
  border-radius:12px;
  box-shadow: 0 8px 30px rgba(2,6,23,0.6);
  padding:10px;
  border:1px solid rgba(255,255,255,0.03);
  display:none;
}
.side-nav ul{list-style:none;padding:6px;margin:0}
.side-nav a{
  display:block;
  padding:10px 12px;
  border-radius:8px;
  text-decoration:none;
  color:var(--text);
  font-weight:600;
}
.side-nav a:hover{background:rgba(255,255,255,0.02)}

/* Search */
.search-form{
  margin-left:auto;
  display:flex;
  gap:8px;
  align-items:center;
  background:var(--glass);
  padding:6px;
  border-radius:12px;
  border:1px solid rgba(255,255,255,0.03);
}
.search-form input{
  background:transparent;
  border:0;
  outline:0;
  color:var(--text);
  padding:8px;
  min-width:180px;
  font-size:0.95rem;
}
.search-btn{
  border:0;
  padding:8px;
  border-radius:10px;
  display:flex;
  align-items:center;
  justify-content:center;
  cursor:pointer;
  background:transparent;
  color:var(--text);
}

/* Main */
.main-content{
  max-width:var(--maxw);
  margin:28px auto;
  padding:0 18px 80px;
}

.hero{
  display:flex;
  align-items:center;
  justify-content:center;
  padding:26px 0;
}
.hero-card{
  width:100%;
  background:linear-gradient(180deg, rgba(255,255,255,0.02), rgba(255,255,255,0.01));
  border-radius:16px;
  padding:36px;
  text-align:center;
  border:1px solid rgba(255,255,255,0.03);
  box-shadow: 0 10px 30px rgba(2,6,23,0.6);
}
.site-title{
  margin:0;
  font-size:2.2rem;
  letter-spacing: -0.02em;
  background:var(--accent-2);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.tagline{
  margin-top:10px;
  color:var(--muted);
  font-weight:600;
}
.lead{color:var(--muted); margin-top:8px}

.hero-actions{margin-top:20px; display:flex; gap:12px; justify-content:center}
.btn{
  padding:10px 18px;
  border-radius:12px;
  text-decoration:none;
  font-weight:700;
  display:inline-block;
}
.btn.primary{
  background:var(--accent-1);
  color:white;
  box-shadow: 0 8px 20px rgba(123,97,255,0.12);
}
.btn.outline{
  border:1px solid rgba(255,255,255,0.06);
  color:var(--text);
  background:transparent;
}

/* Grid */
.content-grid{
  margin-top:22px;
  display:grid;
  grid-template-columns: repeat(auto-fit, minmax(240px,1fr));
  gap:16px;
}
.card{
  background:var(--card);
  padding:16px;
  border-radius:12px;
  border:1px solid rgba(255,255,255,0.02);
}
.placeholder-list{margin:8px 0 0; padding-left:18px; color:var(--muted)}

.site-footer{max-width:var(--maxw); margin:0 auto; padding:24px 18px; color:var(--muted); text-align:center;}

/* small screens adjustments */
@media (max-width:720px){
  .search-form input{min-width:110px}
  .hero-card{padding:22px}
  .site-title{font-size:1.6rem}
  .header-inner{padding:10px}
  .side-nav{left:8px; top:64px}
}

/* helper: show side nav when .open */
.side-nav.open{display:block; transform:translateY(0);}