/* styles.css */
:root{
  --bg: #07050c;
  --stroke: rgba(255,255,255,.10);
  --text: rgba(255,255,255,.92);
  --muted: rgba(255,255,255,.68);
  --accent: #b86cff;
  --accent2:#6a5cff;
  --shadow: 0 18px 60px rgba(0,0,0,.55);
}

*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Apple Color Emoji","Segoe UI Emoji";
  color:var(--text);
  background: radial-gradient(1200px 600px at 50% -10%, rgba(184,108,255,.18), transparent 55%),
              radial-gradient(1000px 500px at 90% 10%, rgba(106,92,255,.12), transparent 60%),
              radial-gradient(900px 600px at 10% 20%, rgba(255,77,109,.08), transparent 60%),
              var(--bg);
  overflow-x:hidden;
}

.bg-glow{
  position:fixed; inset:-40vh -30vw auto -30vw;
  height:70vh;
  background:
    radial-gradient(closest-side, rgba(184,108,255,.22), transparent 65%),
    radial-gradient(closest-side, rgba(106,92,255,.18), transparent 70%);
  filter: blur(14px);
  pointer-events:none;
  z-index:-1;
}

.container{
  width:min(1100px, 92vw);
  margin:0 auto;
}

.header{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  padding:28px 0 18px;
}

.brand{
  display:flex;
  align-items:center;
  gap:14px;
  min-width: 240px;
}

.logo{
  width:64px;
  height:64px;
  object-fit:contain;
  filter: drop-shadow(0 10px 20px rgba(184,108,255,.25));
}

.brand-text .tag{
  margin:0;
  letter-spacing:.24em;
  text-transform:uppercase;
  font-size:.78rem;
  color:var(--muted);
}

.brand-text h1{
  margin:2px 0 0;
  font-size:1.55rem;
  line-height:1.1;
}

.nav{
  display:flex;
  gap:10px;
  flex-wrap:wrap;
  justify-content:flex-end;
}

.nav a{
  text-decoration:none;
  color:var(--muted);
  font-weight:800;
  font-size:.95rem;
  padding:10px 12px;
  border:1px solid transparent;
  border-radius:12px;
  transition: .18s ease;
}

.nav a:hover{
  color:var(--text);
  border-color: var(--stroke);
  background: rgba(255,255,255,.04);
}

.hero{
  display:grid;
  grid-template-columns: 1.35fr .9fr;
  gap:16px;
  padding: 8px 0 18px;
}

.hero-card, .quick-card{
  border:1px solid var(--stroke);
  background: linear-gradient(180deg, rgba(255,255,255,.08), rgba(255,255,255,.04));
  border-radius: 18px;
  box-shadow: var(--shadow);
  padding: 18px 18px 16px;
}

.hero-card h2{
  margin:0 0 8px;
  font-size:1.15rem;
}

.hero-card p{
  margin:0 0 14px;
  color: var(--muted);
  line-height:1.55;
}

.chips{
  display:flex;
  gap:8px;
  flex-wrap:wrap;
}

.chip{
  font-size:.86rem;
  font-weight:900;
  color: rgba(255,255,255,.86);
  padding:8px 10px;
  border-radius:999px;
  border:1px solid rgba(184,108,255,.22);
  background: radial-gradient(120% 120% at 20% 0%, rgba(184,108,255,.18), rgba(255,255,255,.02));
}

.quick-card h3{
  margin:0 0 10px;
  font-size:1.05rem;
}

.toc{
  margin:0;
  padding-left:18px;
  color: var(--muted);
  line-height:1.6;
}

.toc a{
  color: rgba(255,255,255,.78);
  text-decoration:none;
  font-weight:700;
}
.toc a:hover{ text-decoration: underline; }

.section{
  padding: 18px 0;
}

.section-title{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:14px;
  margin-bottom:12px;
  flex-wrap:wrap;
}

.section-title h2{
  margin:0;
  font-size:1.2rem;
}

.muted{ color: var(--muted); }

.grid{
  display:grid;
  grid-template-columns: repeat(3, 1fr);
  gap:12px;
}

.card{
  border:1px solid var(--stroke);
  background: rgba(255,255,255,.04);
  border-radius: 18px;
  padding: 16px;
  box-shadow: 0 10px 40px rgba(0,0,0,.35);
}

.card h3{
  margin:0 0 8px;
  font-size:1.05rem;
}
.card p{ margin:0; color: var(--muted); line-height:1.6; }

/* Categories */
.cat-grid{
  display:grid;
  grid-template-columns: repeat(2, 1fr);
  gap:12px;
}

.cat{
  border:1px solid rgba(184,108,255,.18);
  background:
    radial-gradient(120% 120% at 20% 0%, rgba(184,108,255,.12), rgba(255,255,255,.02)),
    rgba(255,255,255,.03);
  border-radius: 18px;
  padding: 14px;
  box-shadow: 0 10px 40px rgba(0,0,0,.35);
}

.cat-head{
  display:flex;
  align-items:baseline;
  justify-content:space-between;
  gap:10px;
  padding-bottom:10px;
  border-bottom:1px solid rgba(255,255,255,.08);
  margin-bottom:12px;
}
.cat-head h3{
  margin:0;
  font-size:1.05rem;
}
.count{
  color: rgba(255,255,255,.65);
  font-weight:800;
  font-size:.85rem;
}

.cat-list{
  list-style:none;
  margin:0;
  padding:0;
  display:grid;
  gap:10px;
}

.cat-list li{
  display:flex;
  align-items:flex-start;
  gap:10px;
  padding: 11px 11px;
  border:1px solid rgba(255,255,255,.08);
  border-radius: 14px;
  background: rgba(0,0,0,.12);
}

.n{
  flex: 0 0 auto;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  min-width: 44px;
  padding:6px 10px;
  border-radius: 999px;
  font-weight:950;
  font-size:.86rem;
  color: rgba(255,255,255,.90);
  border:1px solid rgba(184,108,255,.26);
  background: rgba(184,108,255,.10);
}

.t{
  color: rgba(255,255,255,.82);
  line-height:1.35;
  font-weight:650;
}

.footer{
  padding: 18px 0 30px;
  border-top:1px solid rgba(255,255,255,.08);
  margin-top: 6px;
  color: rgba(255,255,255,.55);
  text-align:center;
}

/* Responsive */
@media (max-width: 920px){
  .hero{ grid-template-columns: 1fr; }
  .grid{ grid-template-columns: 1fr; }
  .cat-grid{ grid-template-columns: 1fr; }
  .header{ flex-direction: column; align-items:flex-start; }
  .nav{ justify-content:flex-start; }
}


/* Header subtitle */
.subtitle{
  margin:6px 0 0;
  color: rgba(255,255,255,.62);
  font-size:.92rem;
  font-weight:650;
}

/* Compact top section */
.top{
  padding: 10px 0 18px;
}

.top-card{
  border:1px solid var(--stroke);
  background: linear-gradient(180deg, rgba(255,255,255,.08), rgba(255,255,255,.04));
  border-radius: 18px;
  box-shadow: var(--shadow);
  padding: 16px;
}

.top-head{
  display:flex;
  align-items:baseline;
  justify-content:space-between;
  gap:12px;
  flex-wrap:wrap;
  padding-bottom:10px;
  border-bottom:1px solid rgba(255,255,255,.08);
  margin-bottom:12px;
}

.top-head h2{
  margin:0;
  font-size:1.15rem;
}

.toc-grid{
  display:grid;
  grid-template-columns: repeat(3, 1fr);
  gap:10px 14px;
  padding-left: 18px;
  margin:0;
}

.toc-grid li{
  margin:0;
}

@media (max-width: 920px){
  .toc-grid{ grid-template-columns: 1fr; }
}