:root{
  --bg:#0f1720;
  --card:#0b1220;
  --muted:#9aa6b2;
  --accent:#6ee7b7;
  --text:#e6eef3;
}
*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0; font-family:Inter,Segoe UI,Roboto,Arial,sans-serif; background:var(--bg); color:var(--text);
  -webkit-font-smoothing:antialiased; -moz-osx-font-smoothing:grayscale;
}
.container{max-width:1000px;margin:0 auto;padding:20px}
.site-header{border-bottom:1px solid rgba(255,255,255,0.03);}
.site-header .container{display:flex;align-items:center;justify-content:space-between}
.logo{margin:0;font-size:20px}
.controls{display:flex;gap:8px;align-items:center}
input[type=search]{background:transparent;border:1px solid rgba(255,255,255,0.06);padding:8px 10px;border-radius:8px;color:var(--text);min-width:220px}
button{background:transparent;border:1px solid rgba(255,255,255,0.06);padding:8px 10px;border-radius:8px;color:var(--text);cursor:pointer}
.intro{margin:20px 0;color:var(--muted)}
.groups{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:14px}
.group{background:linear-gradient(180deg,rgba(255,255,255,0.02),transparent);padding:12px;border-radius:10px;border:1px solid rgba(255,255,255,0.03)}
.group h3{margin:0 0 8px 0;font-size:16px}
.link-card{display:flex;align-items:center;gap:10px;padding:8px;border-radius:8px;background:var(--card);margin-bottom:8px;text-decoration:none;color:var(--text);border:1px solid rgba(255,255,255,0.02)}
.link-card .favicon{width:36px;height:36px;border-radius:6px;background:linear-gradient(45deg,var(--accent),#5eead4);display:flex;align-items:center;justify-content:center;font-weight:700}
.link-card .meta{flex:1}
.link-card .title{font-weight:600}
.link-card .desc{font-size:13px;color:var(--muted)}
.muted{color:var(--muted)}
.site-footer{padding:14px 0;color:var(--muted);border-top:1px solid rgba(255,255,255,0.02);margin-top:30px}

/* light theme */
body.light{--bg:#f6f8fb;--card:#ffffff;--muted:#536171;--accent:#0ea5a4;--text:#0b1220}

@media (max-width:520px){.controls{flex:1}.container{padding:12px}input[type=search]{min-width:120px}}