/* C# asztali fejlesztes - a vezerlopult (index.html) stiluslapja */

  /* ============================================================
     SZÍNPALETTA — .NET-lila
     Sötét = alapértelmezett, világos = [data-theme="light"]
     ============================================================ */
  :root{
    --bg:#131020;
    --bg2:#0e0b18;
    --panel:#1d1930;
    --panel2:#272040;
    --panel3:#231d38;
    --ink:#e9e6f2;
    --ink-strong:#ffffff;
    --muted:#a29ab8;
    --line:#3a3155;
    --accent:#8b7ff5;
    --accent2:#b3a7ff;
    --accent-ink:#131020;
    --green:#34d399;
    --cyan:#22d3ee;
    --orange:#fb923c;
    --red:#f87171;
    --code-bg:#0e0b18;
    --shadow:0 10px 30px rgba(0,0,0,.35);
    --shadow-sm:0 2px 8px rgba(0,0,0,.25);
    --hero-from:#7c3aed;
    --hero-mid:#512BD4;
    --hero-to:#3b1f9e;
    --sidebar-w:266px;
  }
  :root[data-theme="light"]{
    --bg:#f5f3fa;
    --bg2:#ebe7f5;
    --panel:#ffffff;
    --panel2:#ece7f8;
    --panel3:#f7f5fc;
    --ink:#241f38;
    --ink-strong:#150f28;
    --muted:#6b6483;
    --line:#d8d2e8;
    --accent:#5b21b6;
    --accent2:#4c1d95;
    --accent-ink:#ffffff;
    --green:#047857;
    --cyan:#0e7490;
    --orange:#c2410c;
    --red:#b91c1c;
    --code-bg:#131020;
    --shadow:0 8px 24px rgba(50,30,110,.10);
    --shadow-sm:0 1px 4px rgba(50,30,110,.10);
  }

  *{box-sizing:border-box;}
  html{scroll-behavior:smooth;}
  body{
    margin:0; background:var(--bg); color:var(--ink);
    font-family:"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
    line-height:1.65; font-size:16px;
    display:grid; grid-template-columns:var(--sidebar-w) 1fr; min-height:100vh;
  }
  a{color:inherit;}
  ::selection{background:var(--accent); color:var(--accent-ink);}
  :focus-visible{outline:2px solid var(--accent); outline-offset:3px; border-radius:6px;}

  .scrim{display:none;}

  /* ================= OLDALSÁV ================= */
  .sidebar{
    background:var(--panel); border-right:1px solid var(--line);
    position:sticky; top:0; height:100vh; overflow-y:auto;
    display:flex; flex-direction:column;
    scrollbar-width:thin;
    scrollbar-color:var(--line) transparent;
  }
  /* A fejléc- és láblécmagasságok a fő területtel közösek, hogy a
     válaszfal két oldalán a vízszintes vonalak egy magasságban fussanak. */
  :root{--fejlec-h:80px; --lablec-h:60px;}
  .brand{display:flex; align-items:center; gap:12px; height:var(--fejlec-h); padding:0 20px; border-bottom:1px solid var(--line);}
  .brand .mark{flex:0 0 auto;}
  .brand .txt strong{display:block; font-size:1rem; color:var(--ink-strong); letter-spacing:.01em;}
  .brand .txt span{display:block; font-size:.76rem; color:var(--muted); text-transform:uppercase; letter-spacing:.12em;}
  .sidebar:hover{scrollbar-color:var(--accent) transparent;}
  .sidebar::-webkit-scrollbar{width:8px;}
  .sidebar::-webkit-scrollbar-track{background:transparent;}
  .sidebar::-webkit-scrollbar-thumb{
    background:var(--line); border-radius:99px;
    border:2px solid transparent; background-clip:content-box;
    transition:background .15s;
  }
  .sidebar:hover::-webkit-scrollbar-thumb{background:var(--accent); background-clip:content-box;}
  .sidebar::-webkit-scrollbar-thumb:hover{background:var(--accent2); background-clip:content-box;}

  .nav{padding:16px 12px; flex:1;}

  .nav .grp{
    width:100%; display:flex; align-items:center; gap:6px;
    background:none; border:1px solid transparent; border-radius:8px; cursor:pointer;
    font:inherit; font-size:.7rem; font-weight:700; text-align:left;
    text-transform:uppercase; letter-spacing:.06em; color:var(--muted);
    padding:7px 8px; margin:14px 0 6px;
    transition:color .13s, background .13s, border-color .13s;
  }
  .nav .grp:first-child{margin-top:0;}
  .nav .grp:hover{color:var(--accent2); background:var(--panel2); border-color:var(--line);}
  .nav .grp:focus-visible{outline:2px solid var(--accent); outline-offset:2px;}
  .nav .grp .cim{flex:1; min-width:0; overflow:hidden; text-overflow:ellipsis; white-space:nowrap;}
  .nav .grp .chev{flex:0 0 auto; transition:transform .18s ease;}
  .nav .grp[aria-expanded="false"] .chev{transform:rotate(-90deg);}
  .nav .grp .db{
    flex:0 0 auto; font-size:.6rem; letter-spacing:0; color:var(--muted); line-height:1.5;
    background:var(--panel2); border:0 solid var(--line); border-radius:99px;
    padding:0; max-width:0; overflow:hidden; opacity:0;
    transition:opacity .15s, max-width .15s;
  }
  .nav .grp[aria-expanded="false"] .db{
    opacity:1; max-width:3rem; padding:0 5px; border-width:1px;
  }
  .nav .grp[aria-expanded="false"] + .grp-box{display:none;}
  .nav .grp-box{animation:nav-nyit .18s ease;}
  @keyframes nav-nyit{from{opacity:0; transform:translateY(-4px);} to{opacity:1; transform:none;}}
  .nav a{
    display:flex; align-items:center; gap:10px; padding:8px 10px; margin:2px 0;
    border-radius:9px; text-decoration:none; color:var(--ink); font-size:.92rem;
    border:1px solid transparent; transition:background .13s,border-color .13s,color .13s;
  }
  .nav a:hover{background:var(--panel2); border-color:var(--line);}
  .nav a.active{background:rgba(139,127,245,.14); border-color:var(--accent); color:var(--accent2); font-weight:600;}
  :root[data-theme="light"] .nav a.active{background:rgba(91,33,182,.10); color:var(--accent2);}
  .nav a .n{
    flex:0 0 22px; height:22px; border-radius:6px; background:var(--panel2); border:1px solid var(--line);
    display:grid; place-items:center; font-size:.72rem; font-weight:700; color:var(--muted);
  }
  .nav a:hover .n, .nav a.active .n{background:var(--accent); color:var(--accent-ink); border-color:var(--accent);}
  .nav a .ttl{flex:1; min-width:0; overflow:hidden; text-overflow:ellipsis; white-space:nowrap;}
  .nav .soon-note{
    display:flex; align-items:center; gap:10px; padding:7px 10px; margin:2px 0;
    font-size:.82rem; color:var(--muted); font-style:italic;
  }
  .side-foot{height:var(--lablec-h); padding:0 20px; display:flex; align-items:center;
             border-top:1px solid var(--line); font-size:.76rem; color:var(--muted);}

  /* ================= FEJLÉC ================= */
  .main{min-width:0; display:flex; flex-direction:column;}
  header.top{
    position:sticky; top:0; z-index:20;
    background:color-mix(in srgb, var(--bg) 88%, transparent);
    backdrop-filter:blur(10px);
    border-bottom:1px solid var(--line);
    min-height:var(--fejlec-h); padding:6px 30px; display:flex; align-items:center; gap:18px; flex-wrap:wrap;
  }
  header.top .titles{flex:1; min-width:180px;}
  header.top .crumb{font-size:.74rem; text-transform:uppercase; letter-spacing:.13em; color:var(--muted); font-weight:700;}
  header.top h1{margin:2px 0 0; font-size:1.28rem; color:var(--ink-strong); line-height:1.2;}
  .search{position:relative;}
  .search input{
    width:250px; max-width:46vw; padding:9px 12px 9px 34px; border-radius:9px;
    background:var(--panel); border:1px solid var(--line); color:var(--ink);
    font-family:inherit; font-size:.9rem;
  }
  .search input::placeholder{color:var(--muted);}
  .search svg{position:absolute; left:11px; top:50%; transform:translateY(-50%); opacity:.6;}
  .iconbtn{
    background:var(--panel); border:1px solid var(--line); color:var(--ink);
    width:38px; height:38px; border-radius:9px; display:grid; place-items:center;
    cursor:pointer; transition:.15s;
  }
  .iconbtn:hover{border-color:var(--accent); color:var(--accent2);}
  .hamburger{display:none;}
  :root[data-theme="dark"] .ico-sun{display:block;}
  :root[data-theme="dark"] .ico-moon{display:none;}
  :root[data-theme="light"] .ico-sun{display:none;}
  :root[data-theme="light"] .ico-moon{display:block;}

  /* ================= TARTALOM ================= */
  .content{padding:28px 30px 70px; max-width:1180px; width:100%;}

  .hero{
    background:linear-gradient(135deg,var(--hero-from) 0%,var(--hero-mid) 55%,var(--hero-to) 100%);
    color:#ffffff; border-radius:16px; padding:26px 28px; margin-bottom:26px;
    box-shadow:var(--shadow);
  }
  .hero .kicker{text-transform:uppercase; letter-spacing:.16em; font-size:.72rem; font-weight:800; opacity:.75; margin:0 0 8px;}
  .hero h2{margin:0 0 8px; font-size:1.62rem; line-height:1.2; color:#ffffff;}
  .hero p{margin:0; max-width:730px; font-size:.97rem; color:#f0edfb; opacity:.92;}
  .hero .meta{display:flex; gap:8px; flex-wrap:wrap; margin-top:16px;}
  .hero .meta span{
    background:rgba(255,255,255,.14); border:1px solid rgba(255,255,255,.25); color:#ffffff;
    border-radius:20px; padding:4px 12px; font-size:.78rem; font-weight:600;
  }

  .stats{display:grid; grid-template-columns:repeat(auto-fit,minmax(190px,1fr)); gap:16px; margin-bottom:28px;}
  .stat{
    background:var(--panel); border:1px solid var(--line); border-radius:14px;
    padding:16px 18px; display:flex; gap:14px; align-items:center; box-shadow:var(--shadow-sm);
  }
  .stat .ic{
    flex:0 0 42px; height:42px; border-radius:11px; display:grid; place-items:center;
    background:rgba(139,127,245,.14); color:var(--accent); border:1px solid var(--line);
  }
  :root[data-theme="light"] .stat .ic{background:rgba(91,33,182,.10);}
  .stat .num{font-size:1.55rem; font-weight:800; color:var(--ink-strong); line-height:1.1;}
  .stat .cap{font-size:.8rem; color:var(--muted);}

  .sec-head{display:flex; align-items:baseline; gap:12px; margin:0 0 14px;}
  .sec-head h3{margin:0; font-size:1.05rem; color:var(--ink-strong); text-transform:uppercase; letter-spacing:.09em;}
  .sec-head .line{flex:1; height:1px; background:var(--line);}
  .sec-head .cnt{font-size:.8rem; color:var(--muted);}

  .cards{display:grid; grid-template-columns:repeat(auto-fit,minmax(420px,1fr)); gap:20px;}
  .card{
    background:var(--panel); border:1px solid var(--line); border-radius:16px;
    overflow:hidden; box-shadow:var(--shadow-sm); display:flex; flex-direction:column;
  }
  .card .chead{padding:18px 20px 14px; border-bottom:1px solid var(--line); background:var(--panel3);}
  .card .chead .row{display:flex; align-items:center; gap:12px;}
  .card .badge{
    flex:0 0 34px; height:34px; border-radius:10px; background:var(--accent); color:var(--accent-ink);
    display:grid; place-items:center; font-weight:800; font-size:1rem;
  }
  .card h4{margin:0; font-size:1.12rem; color:var(--ink-strong); flex:1;}
  .card .chip{
    background:var(--panel2); border:1px solid var(--line); color:var(--muted);
    border-radius:20px; padding:3px 11px; font-size:.75rem; font-weight:700; white-space:nowrap;
  }
  .card .desc{margin:10px 0 0; font-size:.9rem; color:var(--muted); line-height:1.55;}
  .mats{list-style:none; margin:0; padding:6px; flex:1;}
  .mats li{margin:0;}
  .mats a{
    display:flex; align-items:center; gap:13px; padding:11px 13px; border-radius:11px;
    text-decoration:none; border:1px solid transparent; transition:background .13s,border-color .13s;
  }
  .mats a:hover{background:var(--panel2); border-color:var(--line);}
  .mats .n{
    flex:0 0 28px; height:28px; border-radius:8px; background:var(--panel2); border:1px solid var(--line);
    display:grid; place-items:center; font-size:.8rem; font-weight:700; color:var(--muted);
  }
  .mats a:hover .n{background:var(--accent); color:var(--accent-ink); border-color:var(--accent);}
  .mats .txt{flex:1; min-width:0;}
  .mats .txt strong{display:block; font-size:.95rem; color:var(--ink); font-weight:600;}
  .mats .txt span{display:block; font-size:.82rem; color:var(--muted); overflow:hidden; text-overflow:ellipsis; white-space:nowrap;}
  .mats .time{font-size:.76rem; color:var(--muted); white-space:nowrap;}
  .mats .arrow{color:var(--muted); opacity:.5; transition:.15s;}
  .mats a:hover .arrow{color:var(--accent); opacity:1; transform:translateX(2px);}
  /* még el nem készült anyag */
  .mats .soon{
    display:flex; align-items:center; gap:13px; padding:11px 13px; border-radius:11px;
    opacity:.55; cursor:default;
  }
  .mats .soon .badge-soon{
    font-size:.68rem; font-weight:700; color:var(--orange); border:1px solid var(--orange);
    border-radius:20px; padding:1px 8px; white-space:nowrap;
  }

  .empty{
    display:none; padding:26px; text-align:center; color:var(--muted);
    background:var(--panel); border:1px dashed var(--line); border-radius:14px;
  }
  .empty.show{display:block;}

  .roadmap{margin-top:34px;}
  .rm-grid{display:grid; grid-template-columns:repeat(auto-fit,minmax(190px,1fr)); gap:12px;}
  .rm{
    background:var(--panel); border:1px dashed var(--line); border-radius:13px; padding:14px 16px;
  }
  .rm .t{font-size:.92rem; color:var(--ink); font-weight:600;}
  .rm .s{font-size:.8rem; color:var(--muted); margin-top:3px;}
  .rm.star{border-style:solid; border-color:var(--accent);}
  .rm.star .t{color:var(--accent2);}

  footer.foot{
    margin-top:auto; min-height:var(--lablec-h); padding:10px 30px; border-top:1px solid var(--line);
    color:var(--muted); font-size:.83rem; display:flex; align-items:center;
    justify-content:space-between; gap:14px; flex-wrap:wrap;
  }

  /* ================= RESPONSZÍV ================= */
  @media (max-width:1000px){
    body{grid-template-columns:1fr;}
    .sidebar{
      position:fixed; left:0; top:0; z-index:40; width:var(--sidebar-w);
      transform:translateX(-100%); transition:transform .2s ease; box-shadow:var(--shadow);
    }
    body.nav-open .sidebar{transform:translateX(0);}
    .hamburger{display:grid;}
    .scrim{position:fixed; inset:0; background:rgba(0,0,0,.5); z-index:35;}
    body.nav-open .scrim{display:block;}
    .content, header.top, footer.foot{padding-left:18px; padding-right:18px;}
    .cards{grid-template-columns:1fr;}
  }
  @media (max-width:560px){
    .search input{width:100%; max-width:none;}
    .search{flex:1 1 100%; order:5;}
    .hero h2{font-size:1.3rem;}
  }
  @media print{
    .sidebar, header.top, .scrim{display:none;}
    body{grid-template-columns:1fr;}
  }