:root{
  --bg:#070914;
  --bg2:#0b1030;
  --panel: rgba(14, 18, 44, .78);
  --panelSolid:#0e122c;
  --text:#eaf0ff;
  --muted:#b5c0df;
  --line: rgba(255,255,255,.10);
  --accent:#8bd3ff;
  --accent2:#b7a6ff;
  --chip: rgba(255,255,255,.06);
  --shadow: 0 18px 50px rgba(0,0,0,.45);
  --radius: 16px;
  --font: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Arial;
}

[data-theme="light"]{
  --bg:#f7f8fb;
  --bg2:#e9efff;
  --panel: rgba(255,255,255,.86);
  --panelSolid:#ffffff;
  --text:#101425;
  --muted:#51607c;
  --line: rgba(10,20,40,.12);
  --accent:#0ea5e9;
  --accent2:#6d5efc;
  --chip: rgba(10,20,40,.06);
  --shadow: 0 18px 50px rgba(10,20,30,.12);
}

*{ box-sizing:border-box; }
html,body{ height:100%; }
body{
  margin:0;
  font-family:var(--font);
  color:var(--text);
  background: radial-gradient(1100px 700px at 20% 10%, rgba(139,211,255,.18), transparent 55%),
              radial-gradient(900px 600px at 85% 15%, rgba(183,166,255,.18), transparent 55%),
              linear-gradient(180deg, var(--bg), var(--bg2));
  overflow-x:hidden;
}

/* Starfield layers */
body::before,
body::after{
  content:"";
  position:fixed;
  inset:-40px;
  pointer-events:none;
  z-index:-1;
}
body::before{
  opacity:.55;
  background-image:
    radial-gradient(1px 1px at 12% 18%, rgba(255,255,255,.9), transparent 55%),
    radial-gradient(1px 1px at 38% 72%, rgba(255,255,255,.75), transparent 55%),
    radial-gradient(1px 1px at 75% 28%, rgba(255,255,255,.85), transparent 55%),
    radial-gradient(1px 1px at 84% 67%, rgba(255,255,255,.7), transparent 55%),
    radial-gradient(1px 1px at 22% 55%, rgba(255,255,255,.8), transparent 55%),
    radial-gradient(1px 1px at 56% 43%, rgba(255,255,255,.65), transparent 55%);
  filter: blur(.2px);
}
body::after{
  opacity:.28;
  background-image:
    radial-gradient(2px 2px at 18% 36%, rgba(255,255,255,.7), transparent 60%),
    radial-gradient(2px 2px at 62% 22%, rgba(255,255,255,.55), transparent 60%),
    radial-gradient(2px 2px at 78% 54%, rgba(255,255,255,.6), transparent 60%);
  filter: blur(.6px);
}

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

.topbar{
  position:sticky; top:0;
  display:flex; align-items:center; justify-content:space-between;
  padding:14px 16px;
  border-bottom:1px solid var(--line);
  background: linear-gradient(180deg, rgba(8,10,22,.85), rgba(8,10,22,.55));
  backdrop-filter: blur(12px);
  z-index:10;
}

.brand{
  display:flex; align-items:baseline; gap:10px;
  text-decoration:none;
  color:var(--text);
}
.brand__title{ font-weight:780; letter-spacing:.2px; }
.brand__subtitle{ color:var(--muted); font-size:.92rem; }

.topbar__actions{ display:flex; gap:10px; align-items:center; }

.searchWrap{
  display:flex; align-items:center;
  gap:10px;
  padding:0 12px 0 10px;
  border-radius:999px;
  border:1px solid var(--line);
  background: var(--panel);
  box-shadow: var(--shadow);
}
.searchWrap__icon{ color:var(--muted); display:flex; }
.search{
  width:min(460px, 44vw);
  padding:10px 6px;
  border:none;
  background:transparent;
  color:var(--text);
  outline:none;
}

.iconBtn{
  display:inline-flex; align-items:center; justify-content:center;
  width:42px; height:42px;
  border-radius:999px;
  border:1px solid var(--line);
  background: var(--panel);
  color:var(--text);
  box-shadow: var(--shadow);
  cursor:pointer;
}
.iconBtn svg{ width:20px; height:20px; }

.layout{
  display:grid;
  grid-template-columns: 290px 1fr;
  gap:16px;
  padding:16px;
}

.sidebar{
  position:sticky;
  top:72px;
  height: calc(100vh - 92px);
  overflow:auto;
  padding:14px;
  background: var(--panel);
  border:1px solid var(--line);
  border-radius:var(--radius);
  box-shadow:var(--shadow);
}

.nav{ display:flex; flex-direction:column; gap:6px; margin-bottom:14px; }
.nav__link{
  padding:10px 10px;
  border-radius:12px;
  color:var(--text);
  text-decoration:none;
  border:1px solid transparent;
}
.nav__link:hover{
  border-color:var(--line);
  background: rgba(255,255,255,.05);
}

.panel{ margin-top:12px; padding-top:12px; border-top:1px solid var(--line); }
.panel__title{ margin:0 0 10px; font-size:1rem; color:var(--muted); font-weight:650; }

.tags{ display:flex; flex-wrap:wrap; gap:8px; }
.tag{
  padding:6px 10px;
  background:var(--chip);
  border:1px solid var(--line);
  border-radius:999px;
  cursor:pointer;
  user-select:none;
  font-size:.9rem;
  color:var(--text);
}
.tag--active{
  outline:2px solid rgba(139,211,255,.35);
  border-color: rgba(139,211,255,.25);
}

.content{
  background: var(--panel);
  border:1px solid var(--line);
  border-radius:var(--radius);
  box-shadow:var(--shadow);
  padding:18px 18px 26px;
  min-height: calc(100vh - 120px);
}

.breadcrumbs{ color:var(--muted); font-size:.95rem; margin-bottom:10px; }

.view h1{ margin:0 0 10px; font-size:2rem; letter-spacing:.2px; }
.view h2{ margin-top:26px; border-top:1px solid var(--line); padding-top:16px; }
.view p{ line-height:1.65; color: rgba(234,240,255,.92); }

.card{
  border:1px solid var(--line);
  background: rgba(255,255,255,.04);
  border-radius:16px;
  padding:14px;
  margin:12px 0;
}

/* Home page design */
.hero{
  position:relative;
  padding:26px 18px 18px;
  border-radius:20px;
  border:1px solid var(--line);
  background:
    radial-gradient(700px 280px at 20% 0%, rgba(139,211,255,.22), transparent 60%),
    radial-gradient(700px 280px at 85% 10%, rgba(183,166,255,.18), transparent 60%),
    rgba(255,255,255,.03);
  overflow:hidden;
}
.hero::after{
  content:"";
  position:absolute;
  inset:-60px;
  background:
    radial-gradient(1px 1px at 18% 28%, rgba(255,255,255,.9), transparent 60%),
    radial-gradient(1px 1px at 48% 40%, rgba(255,255,255,.7), transparent 60%),
    radial-gradient(1px 1px at 72% 24%, rgba(255,255,255,.85), transparent 60%),
    radial-gradient(1px 1px at 86% 58%, rgba(255,255,255,.7), transparent 60%);
  opacity:.45;
  pointer-events:none;
}
.hero__top{
  display:flex;
  align-items:flex-start;
  justify-content:space-between;
  gap:16px;
  position:relative;
}
.hero__kicker{
  display:inline-flex; align-items:center; gap:10px;
  color:var(--muted);
  font-weight:650;
  letter-spacing:.18px;
}
.hero__kicker svg{ width:18px; height:18px; }
.hero__title{
  margin:10px 0 6px;
  font-size:2.35rem;
  line-height:1.05;
}
.hero__subtitle{
  margin:0;
  max-width:70ch;
  color:rgba(234,240,255,.86);
  line-height:1.55;
}
.hero__actions{
  display:flex; flex-wrap:wrap; gap:10px;
  margin-top:16px;
  position:relative;
}
.btnPrimary, .btnGhost{
  display:inline-flex; align-items:center; gap:10px;
  padding:10px 12px;
  border-radius:12px;
  border:1px solid var(--line);
  cursor:pointer;
  user-select:none;
  text-decoration:none;
  font-weight:650;
}
.btnPrimary{
  background: linear-gradient(90deg, rgba(139,211,255,.18), rgba(183,166,255,.16));
}
.btnGhost{
  background: rgba(255,255,255,.03);
}
.btnPrimary svg, .btnGhost svg{ width:18px; height:18px; }

.grid{
  display:grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap:12px;
  margin-top:14px;
}
.tile{
  border:1px solid var(--line);
  background: rgba(255,255,255,.03);
  border-radius:16px;
  padding:14px;
}
.tile__head{
  display:flex; align-items:center; gap:10px;
  margin-bottom:8px;
}
.tile__head svg{ width:18px; height:18px; color:var(--muted); }
.tile__title{ margin:0; font-size:1.05rem; }
.tile__text{ margin:0; color:rgba(234,240,255,.84); line-height:1.55; }
.tile a{ text-decoration:none; }
.tile a:hover{ text-decoration:underline; }

.footer{
  padding:14px 16px;
  color:var(--muted);
  border-top:1px solid var(--line);
}

@media (max-width: 950px){
  .layout{ grid-template-columns: 1fr; }
  .sidebar{ position:relative; top:auto; height:auto; }
  .search{ width: 56vw; }
  .grid{ grid-template-columns: 1fr; }
  .hero__title{ font-size:2rem; }
}