:root{
  --bg:#0a0d12;
  --bg-2:#131922;
  --panel:#161d27;
  --panel-2:#1c2430;
  --text:#f5f7fb;
  --muted:#c9d0dc;
  --line:#2c3647;
  --accent:#f5b400;
  --accent-2:#ffd452;
  --success:#22c55e;
  --warn:#f59e0b;
  --danger:#ef4444;
  --shadow:0 18px 42px rgba(0,0,0,.28);
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  font-family:Inter,Arial,Helvetica,sans-serif;
  background:
    radial-gradient(circle at top right, rgba(245,180,0,.09), transparent 22%),
    linear-gradient(180deg,#090c10 0%, #10151d 50%, #0c1117 100%);
  color:var(--text);
}
a{color:inherit;text-decoration:none}
.container{width:min(1160px,calc(100% - 32px));margin:0 auto}
.site-header{
  position:sticky;
  top:0;
  z-index:30;
  backdrop-filter:blur(12px);
  background:rgba(10,13,18,.86);
  border-bottom:1px solid rgba(255,212,82,.12);
}
.nav{display:flex;align-items:center;justify-content:space-between;gap:24px;padding:14px 0}
.brand{display:flex;align-items:center;gap:14px;min-width:0}
.brand-logo{
  width:62px;
  height:62px;
  object-fit:contain;
  flex-shrink:0;
  filter: drop-shadow(0 10px 18px rgba(0,0,0,.25));
}
.brand-copy{display:flex;flex-direction:column;min-width:0}
.brand-title{
  font-size:2rem;
  font-weight:800;
  line-height:1;
  letter-spacing:-.02em;
  color:#f6f7f8;
}
.brand-title span{color:var(--accent)}
.brand-subtitle{
  margin-top:6px;
  color:#d5c79b;
  font-size:.86rem;
  letter-spacing:.35em;
  text-transform:uppercase;
}
nav ul{display:flex;gap:18px;list-style:none;padding:0;margin:0;flex-wrap:wrap}
nav a{
  color:var(--muted);
  font-weight:600;
  padding:10px 0;
  position:relative;
}
nav a:hover, nav a.active{color:var(--text)}
nav a.active::after{
  content:"";
  position:absolute;
  left:0;
  right:0;
  bottom:-10px;
  height:2px;
  background:linear-gradient(90deg,var(--accent),transparent);
  border-radius:999px;
}
.hero{padding:72px 0 40px}
.hero-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:28px;align-items:center}
h1{
  font-size:clamp(2.35rem,4.5vw,4.3rem);
  line-height:1.02;
  margin:0 0 14px;
  letter-spacing:-.03em;
}
h2{font-size:clamp(1.5rem,2vw,2.1rem);margin:0 0 14px}
h3{font-size:1.15rem;margin:0 0 10px}
p{
  color:var(--muted);
  line-height:1.7;
  margin:0 0 12px;
}
.lead{
  font-size:1.1rem;
  max-width:760px;
  color:#e9eef8;
}
.btn-row{display:flex;gap:12px;flex-wrap:wrap;margin-top:24px}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:10px;
  padding:13px 18px;
  border-radius:14px;
  font-weight:800;
  border:1px solid transparent;
  cursor:pointer;
  transition:.18s ease;
  background:#1f2937;
  color:var(--text);
}
.btn:hover{transform:translateY(-1px)}
.btn.primary{
  background:linear-gradient(135deg,var(--accent),var(--accent-2));
  color:#161006;
  box-shadow:0 12px 28px rgba(245,180,0,.18);
}
.btn.secondary{border-color:var(--line);background:rgba(255,255,255,.02)}
.btn.ghost{background:transparent;border-color:var(--line)}
.card{
  background:linear-gradient(180deg,rgba(255,255,255,.045),rgba(255,255,255,.02));
  border:1px solid rgba(255,255,255,.08);
  border-radius:24px;
  padding:24px;
  box-shadow:var(--shadow);
}
.grid{display:grid;gap:18px}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-2{grid-template-columns:repeat(2,1fr)}
section{padding:20px 0 36px}
.badges{display:flex;gap:8px;flex-wrap:wrap}
.badge{
  display:inline-flex;
  padding:7px 11px;
  border-radius:999px;
  background:rgba(245,180,0,.11);
  border:1px solid rgba(245,180,0,.24);
  color:#ffe8a0;
  font-size:.92rem;
  font-weight:700;
}
.list{display:grid;gap:12px;padding:0;margin:0;list-style:none}
.list li{
  padding:14px 16px;
  border:1px solid rgba(255,255,255,.08);
  border-radius:16px;
  background:rgba(255,255,255,.025);
}
.footer{
  padding:36px 0 60px;
  border-top:1px solid rgba(255,255,255,.06);
  margin-top:18px;
}
.footer-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.footer-copy{font-size:.96rem}
.page-title{padding:38px 0 10px}
.form-grid{display:grid;gap:14px}
label{font-weight:700;font-size:.95rem}
input, textarea, select{
  width:100%;
  padding:13px 14px;
  border-radius:14px;
  border:1px solid var(--line);
  background:#0d1219;
  color:var(--text);
  font:inherit
}
textarea{min-height:150px;resize:vertical}
.notice, .success{
  padding:14px 16px;
  border-radius:14px;
  font-weight:600;
}
.notice{
  border:1px solid rgba(245,158,11,.28);
  background:rgba(245,158,11,.08);
  color:#ffe3ac;
}
.success{
  border:1px solid rgba(34,197,94,.22);
  background:rgba(34,197,94,.08);
  color:#dff8e8;
}
.question-wrap{display:grid;gap:20px}
.progress{
  height:12px;
  background:#0a0e14;
  border:1px solid rgba(255,255,255,.07);
  border-radius:999px;
  overflow:hidden
}
.progress > div{
  height:100%;
  background:linear-gradient(90deg,var(--accent),var(--accent-2));
}
.option{
  display:flex;
  gap:14px;
  align-items:flex-start;
  padding:18px;
  border-radius:18px;
  border:1px solid rgba(255,255,255,.12);
  background:rgba(255,255,255,.045);
  color:var(--text);
  cursor:pointer;
  text-align:left;
  transition:.18s ease;
}
.option:hover{
  border-color:rgba(255,212,82,.45);
  background:rgba(255,255,255,.065);
}
.option.selected{
  border-color:rgba(255,212,82,.95);
  background:rgba(245,180,0,.12);
}
.option.correct{
  border-color:rgba(34,197,94,.75);
  background:rgba(34,197,94,.14);
}
.option.incorrect{
  border-color:rgba(239,68,68,.78);
  background:rgba(239,68,68,.12);
}
.option-key{
  width:34px;
  height:34px;
  flex-shrink:0;
  border-radius:999px;
  background:#0f151d;
  border:1px solid rgba(255,255,255,.12);
  display:grid;
  place-items:center;
  font-weight:800;
  font-size:.98rem;
  color:#fff;
}
.option-copy{
  flex:1;
  font-size:1.03rem;
  line-height:1.5;
  color:#f6f8fc;
}
.toolbar{
  display:flex;
  justify-content:space-between;
  gap:12px;
  flex-wrap:wrap;
  align-items:center
}
.table{width:100%;border-collapse:collapse}
.table th,.table td{
  padding:12px 10px;
  border-bottom:1px solid rgba(255,255,255,.08);
  text-align:left
}
.table th{color:#fff2c0}
.table-spaced{margin-top:14px}
.small{font-size:.94rem}
.muted{color:var(--muted)}
.big-number{font-size:2rem;margin:0;color:#fff}
.cta-panel{
  background:
    radial-gradient(circle at top right, rgba(245,180,0,.18), transparent 30%),
    linear-gradient(180deg, rgba(255,255,255,.05), rgba(255,255,255,.025));
}
.cards a.card{display:block}
.cards a.card:hover{border-color:rgba(255,212,82,.35)}
.kpis{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.kpi{
  padding:18px;
  border-radius:18px;
  background:rgba(255,255,255,.03);
  border:1px solid rgba(255,255,255,.06)
}
.kpi b{display:block;font-size:1.45rem;margin-bottom:5px;color:#fff}
@media (max-width:980px){
  .hero-grid,.grid-3,.grid-2,.kpis,.footer-grid{grid-template-columns:1fr}
  .nav{align-items:flex-start;flex-direction:column}
  nav ul{gap:14px}
}
@media (max-width:640px){
  .brand-title{font-size:1.55rem}
  .brand-subtitle{letter-spacing:.2em;font-size:.75rem}
  .brand-logo{width:54px;height:54px}
  .container{width:min(100% - 24px,1160px)}
}