:root{
   --bg:#f4f6f8;
  --panel:#ffffff;
  --card:#ffffff;
  --line:rgba(15,23,42,.12);
  --text:#0f172a;
  --muted:#64748b;

  --accent:#16a34a;
  --accent2:#1e3a8a;

  --shadow:0 18px 60px rgba(2,6,23,.10);
  --shadow2:0 10px 26px rgba(2,6,23,.08);

  --radius:18px;
  --max:1160px;
}

*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Arial;
  color:var(--text);
  background: radial-gradient(900px 520px at 10% 0%, rgba(30,58,138,.10), transparent 60%),
              radial-gradient(900px 520px at 90% 0%, rgba(22,163,74,.10), transparent 60%),
              var(--bg);
}

a{color:inherit;text-decoration:none}
a:hover{opacity:.92}
.wrap{max-width:var(--max);margin:0 auto;padding:0 18px}

/* Sticky header */
.topbar{
  position:sticky; top:0; z-index:50;
  backdrop-filter:saturate(140%) blur(10px);
  background:rgba(244,246,248,.85);
  border-bottom:1px solid var(--line);
}
.nav{
  border-top:1px solid rgba(15,23,42,.08);
  background:rgba(255,255,255,.70);
}
.topbarInner{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:14px 0}
.brand{display:flex;align-items:center;gap:12px}
.mark{
  width:42px;height:42px;border-radius:14px;
  background:linear-gradient(135deg, rgba(0,208,132,.95), rgba(255,176,32,.9));
  box-shadow:0 14px 40px rgba(0,0,0,.35);
  display:grid;place-items:center;
  font-weight:1000; letter-spacing:.6px; color:#04100b;
}
.brandText{line-height:1.05}
.brandText strong{display:block;font-size:15px;letter-spacing:.35px}
.brandText span{display:block;font-size:12px;color:var(--muted);font-weight:650;margin-top:4px}
.headerActions{display:flex;align-items:center;gap:10px;flex-wrap:wrap;justify-content:flex-end}
.authLine{font-size:13px;color:var(--muted)}
.authLine a{color:var(--text);font-weight:850}

/* Nav */
.nav{
  border-top:1px solid rgba(255,255,255,.06);
  background:rgba(16,24,36,.55);
}
.navRow{display:flex;gap:10px;align-items:center;overflow-x:auto;padding:10px 0}
.nav a{
  padding:10px 12px;border-radius:12px;
  font-weight:900;font-size:14px;color:var(--text);
  border:1px solid transparent;
}
.nav a:hover{border-color:var(--line); background:rgba(255,255,255,.04)}
.nav a.active{
  border-color:rgba(0,208,132,.35);
  background:rgba(0,208,132,.12);
}

/* Buttons */
.btn{
  border:1px solid var(--line);
  background:#fff;
  color:var(--text);
  padding:10px 14px;
  border-radius:14px;
  font-weight:800;
  font-size:14px;
  cursor:pointer;
}
.btn.primary{
  border-color:transparent;
  background:linear-gradient(180deg, rgba(30,58,138,.95), rgba(30,64,175,.95));
  color:#fff;
  box-shadow:0 12px 26px rgba(30,58,138,.22);
}
.btn.ghost{
  background:transparent;
}
/* Layout */
.main{padding:22px 0 42px}
.layout{display:grid;grid-template-columns:280px 1fr;gap:18px;align-items:start}

.panel{
  border:1px solid var(--line);
  background:var(--panel);
  border-radius:var(--radius);
  box-shadow:var(--shadow2);
}
.card{
  border:1px solid var(--line);
  background:var(--card);
  border-radius:18px;
  overflow:hidden;
  box-shadow:var(--shadow2);
}
.panelHeader{
  padding:14px 14px;
  display:flex;align-items:center;justify-content:space-between;
  border-bottom:1px solid rgba(255,255,255,.08);
  background:linear-gradient(180deg, rgba(0,0,0,.16), rgba(0,0,0,.0));
}
.panelHeader strong{letter-spacing:.35px}
.cat a{
  display:flex;align-items:center;justify-content:space-between;
  padding:12px 14px;
  border-top:1px solid rgba(255,255,255,.06);
  color:var(--text);
  font-weight:780;
}
.cat a:hover{background:rgba(255,255,255,.04)}
.cat span{color:var(--muted);font-weight:1000}

/* Hero */
.hero{
  border:1px solid rgba(255,255,255,.10);
  background:
    radial-gradient(920px 360px at 15% 0%, rgba(0,208,132,.20), transparent 60%),
    radial-gradient(720px 340px at 90% 10%, rgba(255,176,32,.14), transparent 60%),
    linear-gradient(180deg, rgba(255,255,255,.06), rgba(255,255,255,.02));
  border-radius:22px;
  padding:18px 18px;
  box-shadow:var(--shadow);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
}
.hero h1{margin:0;font-size:34px;letter-spacing:.2px}
.hero p{margin:8px 0 0;color:var(--muted);font-weight:650}
.heroRight{display:flex;gap:10px;flex-wrap:wrap}

/* Form box */
.formBox{
  margin-top:14px;
  border:1px solid rgba(255,255,255,.10);
  background:rgba(16,24,36,.50);
  border-radius:18px;
  padding:14px;
  box-shadow:var(--shadow2);
}
label{display:block;font-weight:900;margin:10px 0 6px;font-size:13px;color:var(--muted)}
input,textarea,select{
  width:100%;
  padding:11px 12px;
  border-radius:14px;
  border:1px solid rgba(15,23,42,.14);
  background:#fff;
  color:var(--text);
  outline:none;
}
input:focus, textarea:focus, select:focus{
  border-color:rgba(30,58,138,.35);
  box-shadow:0 0 0 4px rgba(30,58,138,.12);
}
/* Section */
.sectionBar{
  margin-top:18px;
  display:flex;align-items:center;justify-content:space-between;gap:12px;
}
.sectionBar h2{margin:0;font-size:15px;letter-spacing:.35px;text-transform:uppercase;color:var(--muted)}
.sectionBar .rule{flex:1;height:1px;background:rgba(255,255,255,.08)}

/* Cards */
.cards{margin-top:12px;display:grid;grid-template-columns:repeat(4, 1fr);gap:14px}
.card{
  border:1px solid rgba(255,255,255,.10);
  background:linear-gradient(180deg, rgba(255,255,255,.06), rgba(255,255,255,.02));
  border-radius:18px;
  overflow:hidden;
  box-shadow:var(--shadow2);
  transition:transform .12s ease, border-color .12s ease, background .12s ease;
}
.card:hover{transform:translateY(-3px);border-color:rgba(0,208,132,.25);background:rgba(255,255,255,.06)}
.thumb{
  position:relative;
  aspect-ratio:4/3;
  background:linear-gradient(135deg, rgba(0,0,0,.25), rgba(255,255,255,.02));
  display:grid;place-items:center;
  color:rgba(255,255,255,.35);
  font-weight:1000;
  letter-spacing:.8px;
}
.price{
  position:absolute;bottom:10px;right:10px;
  padding:7px 10px;border-radius:12px;
  background:rgba(0,0,0,.55);
  border:1px solid rgba(255,255,255,.12);
  font-weight:1000;font-size:12px;color:#fff;
}
.badge{
  position:absolute;top:10px;left:10px;
  padding:7px 10px;border-radius:999px;
  background:rgba(0,208,132,.16);
  border:1px solid rgba(0,208,132,.28);
  font-weight:900;font-size:12px;color:rgba(232,238,246,.95);
}
.cardBody{padding:12px 12px 14px}
.cardTitle{margin:0 0 8px;font-size:14px;font-weight:1000;letter-spacing:.1px}
.meta{display:flex;flex-wrap:wrap;gap:8px}
.meta span{
  padding:5px 9px;border-radius:999px;
  border:1px solid rgba(255,255,255,.10);
  background:rgba(0,0,0,.22);
  color:var(--muted);
  font-weight:800;font-size:12px;
}

/* Inbox threads */
.threadLink{
  display:flex;justify-content:space-between;align-items:center;
  padding:12px 12px;border-radius:14px;margin-top:10px;
  border:1px solid rgba(255,255,255,.08);
  background:rgba(0,0,0,.20);
}
.threadLink:hover{background:rgba(255,255,255,.04)}

/* Footer */
footer{
  border-top:1px solid rgba(15,23,42,.10);
  padding:22px 0;
  color:var(--muted);
  font-size:13px;
  background:rgba(255,255,255,.65);
}
footer strong{color:var(--text)}

/* Modal */
.modal{position:fixed;inset:0;display:none;align-items:center;justify-content:center;padding:18px}
.modal.open{display:flex}
.backdrop{position:absolute;inset:0;background:rgba(0,0,0,.55)}
.modalCard{
  position:relative;z-index:2;
  width:min(560px, 100%);
  border-radius:20px;
  border:1px solid rgba(255,255,255,.12);
  background:linear-gradient(180deg, rgba(17,26,36,.95), rgba(12,17,24,.95));
  box-shadow:var(--shadow);
  padding:14px;
}

.modalTop{display:flex;align-items:center;justify-content:space-between;margin-bottom:10px}
.hidden{display:none}

/* Responsive */
@media (max-width: 1020px){
  .layout{grid-template-columns:1fr}
  .cards{grid-template-columns:repeat(2, 1fr)}
  .grid4{grid-template-columns:1fr 1fr;gap:10px}
}
@media (max-width: 560px){
  .cards{grid-template-columns:1fr}
  .hero h1{font-size:28px}
}
.brand-logo {
  height: 48px;
  width: auto;
  display: block;
}