:root{
  --mb-black:#1f1f1f;
  --mb-yellow:#ffb600;
  --mb-yellow-2:#ffcc33;
  --mb-text:#f3f5f8;
  --mb-muted:#b8c0ca;
  --mb-outline:rgba(255,255,255,.12);
}
*{box-sizing:border-box}
body{
  margin:0;
  color:#f3f5f8;
  background-color:#1f1f1f;

  background-repeat:no-repeat, no-repeat; /* не тайлим градиенты → без полос */
  background-attachment:scroll;
  font:14px/1.45 system-ui,-apple-system, Segoe UI, Roboto, Arial;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
}


.container{max-width:1280px; margin:0 auto; padding:0 16px}

/* topbar */
.mb-topbar{background:var(--mb-black); border-bottom:1px solid var(--mb-outline)}
.mb-topbar__row{display:flex; align-items:center; gap:10px; min-height:44px}
.mb-chip{padding:6px 12px; border-radius:999px; background:#2a2a2a; color:#fff; text-decoration:none}
.mb-topbar__spacer{flex:1}
.mb-time{color:#e0e6ef; background:#2a2a2a; border:1px solid var(--mb-outline); padding:6px 10px; border-radius:999px; margin-right:6px}
.mb-btn{display:inline-flex; align-items:center; justify-content:center; padding:8px 12px; border-radius:999px; text-decoration:none; color:#fff; border:1px solid transparent}
.mb-btn--reg{background:var(--mb-yellow); color:#000; font-weight:800}
.mb-btn--reg:hover{background:var(--mb-yellow-2)}
.mb-btn--login{background:#3a3a3a}

/* header / nav */
.mb-header{background:#bbbbbb; position:sticky; top:0; z-index:60; box-shadow:0 6px 16px rgba(0,0,0,.25)}
.mb-header__row{display:flex; align-items:center; gap:16px; min-height:52px}
.mb-logo img{height:22px; display:block}

.mb-nav{flex:1}
.mb-nav ul{list-style:none; margin:0; padding:0; display:flex; align-items:center; gap:18px; text-transform:uppercase; font-weight:800; letter-spacing:.2px}
.mb-nav a{color:#1b1b1b; text-decoration:none; padding:10px 6px; display:inline-flex; align-items:center; gap:8px}
.mb-nav a:hover{opacity:.85}

.mb-nav__midgard a{background:rgba(0,0,0,.08); padding:6px 10px; border-radius:999px}
.mb-nav__midgard img{height:18px; width:36px; object-fit:cover; border-radius:4px}

/* burger */
.mb-burger{display:none; width:42px; height:42px; border-radius:12px; border:1px solid var(--mb-outline); align-items:center; justify-content:center; background:#2a2a2a}
.mb-burger span,.mb-burger span:before,.mb-burger span:after{content:""; display:block; width:20px; height:2px; background:#fff; position:relative; transition:transform .25s ease,opacity .2s ease}
.mb-burger span:before{position:absolute; transform:translateY(-6px)}
.mb-burger span:after{position:absolute; transform:translateY(6px)}
.mb-burger.active span{background:transparent}
.mb-burger.active span:before{transform:translateY(0) rotate(45deg)}
.mb-burger.active span:after{transform:translateY(0) rotate(-45deg)}

/* drawer */
.mb-nav__close{display:none}
.mb-scrim{position:fixed; inset:0; background:rgba(0,0,0,.5); opacity:0; pointer-events:none; transition:.25s; z-index:59}

@media (max-width:1100px){
  .mb-nav ul{gap:12px}
}
@media (max-width:920px){
  .mb-burger{display:inline-flex}
  .mb-nav{
    position:fixed; top:calc(44px + 52px); left:0; bottom:0; width:min(92svw,360px);
    background:#111; color:#fff; border-right:1px solid var(--mb-outline);
    transform:translateX(-110%); transition:transform .3s cubic-bezier(.22,.61,.36,1);
    z-index:60; padding:16px 14px;
  }
  .mb-nav[aria-hidden="false"]{transform:translateX(0)}
  .mb-nav ul{flex-direction:column; align-items:stretch; gap:6px; text-transform:none}
  .mb-nav a{color:#f3f5f8; padding:12px 14px; background:#1a1a1a; border-radius:12px}
  .mb-nav__midgard a{background:#232323}
  .mb-nav__close{display:inline-flex; align-items:center; justify-content:center; width:38px; height:38px; border-radius:10px; border:1px solid var(--mb-outline); background:#1f1f1f; color:#fff; margin-bottom:10px}
  .mb-scrim.show{opacity:1; pointer-events:auto}
}

/* demo section */
main{padding:24px 0 60px}
.demo{background:rgba(255,255,255,.04); border:1px solid rgba(255,255,255,.12); border-radius:16px; padding:20px; margin-top:18px}

/* ===== Hero ===== */
.mb-hero{
  background:#141414;
  border-bottom:1px solid rgba(255,255,255,.08);
      padding: 10px;
}
.mb-hero__wrap{
  display:grid;
  grid-template-columns: 1.1fr .9fr;
  gap:28px;
  align-items:center;
  padding:28px 0;
}
.mb-hero__content h1{
  margin:0 0 12px;
  font-weight:900;
  line-height:1.1;
  text-transform:uppercase;
  font-size:clamp(24px,3.6vw,40px);
  color:#fff;
}
.mb-hero__content .usd{color:#ffb600}
.mb-hero__content p{
  margin:0 0 18px;
  color:#cfd6e1;
  max-width:56ch;
}
.mb-hero__cta{
  display:inline-flex; align-items:center; justify-content:center;
  padding:12px 18px; border-radius:10px;
  background:#ffb600; color:#000; font-weight:800; text-decoration:none;
  box-shadow:0 6px 16px rgba(0,0,0,.35);
  transition:transform .15s ease, background .15s ease;
}
.mb-hero__cta:hover{background:#ffcc33; transform:translateY(-1px)}

.mb-hero__art{
  position:relative;
  border-radius:14px;
  background:linear-gradient(270deg, rgba(255,182,0,.22), rgba(0,0,0,0)),
             radial-gradient(80% 120% at 80% 40%, rgba(255,182,0,.25), rgba(0,0,0,0));
  padding:10px;
}
.mb-hero__art::before{
  content:""; position:absolute; inset:0;
  border-radius:14px; background:linear-gradient(180deg, rgba(255,255,255,.06), rgba(255,255,255,0));
  pointer-events:none;
}
.mb-hero__art img{
  width:100%; height:auto; display:block; border-radius:12px;
  box-shadow:0 10px 30px rgba(0,0,0,.45);
}

/* ===== Steps ===== */
.mb-steps{
  background:#1a1a1a;
  border-top:1px solid rgba(255,255,255,.08);
  border-bottom:1px solid rgba(255,255,255,.08);
  padding: 10px;
}
.mb-steps__row{
  display:grid;
  grid-template-columns: repeat(4, minmax(220px,1fr));
  gap:12px;
  padding:16px 0 18px;
}
.mb-step{
  position:relative;
  padding:14px 16px 14px 16px;
  background:#222; border:1px solid rgba(255,255,255,.1);
  border-radius:12px; color:#dbe4ef;
  box-shadow:0 6px 18px rgba(0,0,0,.25) inset;
}
.mb-step h3{
  margin:0 0 6px; font-size:14px; color:#ffb600; text-transform:uppercase; letter-spacing:.3px;
}
.mb-step p{margin:0; color:#b8c0ca; font-size:13px}
.mb-step::after{
  content:""; position:absolute; right:10px; top:50%; width:10px; height:10px;
  border-right:2px solid #ffb600; border-bottom:2px solid #ffb600;
  transform:translateY(-50%) rotate(-45deg);
  opacity:.75;
}

/* responsive */
@media (max-width: 980px){
  .mb-hero__wrap{grid-template-columns:1fr; padding:20px 0}
  .mb-hero__art{order:-1}
}
@media (max-width: 860px){
  .mb-steps__row{grid-template-columns:repeat(2,minmax(220px,1fr))}
}
@media (max-width: 540px){
  .mb-steps__row{
    grid-template-columns: 80% 80%;
    overflow:auto; scroll-snap-type:x proximity; gap:10px;
    padding-bottom:14px;
  }
  .mb-step{scroll-snap-align:center}
  .mb-hero__cta{width:100%}
  .mb-time{
    display: none;
  }
  .mb-chip{
    display: none;
  }
}

.mb-step{
  display:block;
  color:#dbe4ef;
  text-decoration:none;
}
.mb-step:hover{background:#272727}
.mb-step:focus-visible{
  outline:2px solid #ffb600;
  outline-offset:3px;
  text-decoration:none;
}

    .mb-content{
      --c-head:#fff;
      --c-text:#d7dde7;
      --c-muted:#9aa5b4;
      --c-accent:#ffb600;
      --c-accent-2:#ffcc33;
      --c-line:rgba(255,255,255,.12);
      --c-chip:rgba(255,255,255,.06);
      color:var(--c-text);
      padding:28px 0 40px;
      font-size:16px;
      line-height:1.7;
      background:
        radial-gradient(80% 120% at 85% 0, rgba(255,182,0,.08), rgba(0,0,0,0)),
        linear-gradient(180deg,#161616,#141414);
      border-top:1px solid var(--c-line);
      border-bottom:1px solid var(--c-line);
    }
    .mb-content .inner{max-width:900px; margin:0 auto; padding:0 16px}

    .mb-content *{box-sizing:border-box}
    .mb-content :where(h1,h2,h3,h4,h5,h6){
      color:var(--c-head); margin:0 0 .55em; line-height:1.2; font-weight:900; letter-spacing:.2px
    }
    .mb-content h1{font-size:clamp(26px,3.8vw,40px)}
    .mb-content h2{font-size:clamp(22px,3.2vw,30px); margin-top:1.2em}
    .mb-content h3{font-size:clamp(18px,2.6vw,24px); margin-top:1.1em}
    .mb-content h4{font-size:18px}
    .mb-content h6{font-size:13px; color:var(--c-muted); text-transform:uppercase; letter-spacing:.3px}

    .mb-content p{margin:.85em 0}
    .mb-content a{color:var(--c-accent); text-decoration:none; border-bottom:1px dashed currentColor}
    .mb-content a:hover{color:var(--c-accent-2); border-bottom-color:transparent}

    .mb-content strong{font-weight:800}
    .mb-content em{font-style:italic}
    .mb-content mark{background:rgba(255,182,0,.25); padding:.05em .3em; border-radius:.3em}
    .mb-content small{font-size:.875em; color:var(--c-muted)}
    .mb-content sup,.mb-content sub{font-size:.75em; line-height:0}

    .mb-content ul,.mb-content ol{margin:.6em 0 .9em 1.25em; padding:0}
    .mb-content li{margin:.35em 0}
    .mb-content ul li::marker{color:var(--c-accent-2)}
    .mb-content ol li::marker{color:var(--c-accent)}

    .mb-content dl{margin:1em 0}
    .mb-content dt{font-weight:800}
    .mb-content dd{margin:0 0 .6em 1.25em; color:var(--c-muted)}

    .mb-content figure{margin:1em 0}
    .mb-content img,.mb-content video,.mb-content iframe{
      max-width:100%; height:auto; display:block; border-radius:12px;
      box-shadow:0 8px 24px rgba(0,0,0,.25)
    }
    .mb-content figcaption{color:var(--c-muted); font-size:.9em; margin-top:.4em; text-align:center}

    .mb-content blockquote{
      margin:1em 0; padding:14px 16px; border-left:4px solid var(--c-accent);
      background:var(--c-chip); border-radius:12px; color:#e8edf6
    }

    .mb-content pre{
      background:#0e0e0e; padding:14px 16px; border:1px solid var(--c-line);
      border-radius:12px; overflow:auto;
    }
    .mb-content code{
      font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
      background:rgba(255,255,255,.08); padding:.15em .35em; border-radius:.35em
    }
    .mb-content pre code{background:transparent; padding:0}

    .mb-content table{
      width:100%; border-collapse:collapse; margin:1em 0; display:block; overflow-x:auto;
      border:1px solid var(--c-line); border-radius:12px
    }
    .mb-content thead{background:rgba(255,255,255,.06)}
    .mb-content th,.mb-content td{
      padding:12px 14px; text-align:left; border-bottom:1px solid var(--c-line); white-space:nowrap
    }
    .mb-content tbody tr:last-child td{border-bottom:none}
    .mb-content th{font-weight:800; color:#fff}
    .mb-content caption{caption-side:bottom; padding:8px 0; color:var(--c-muted); font-size:.9em}

    .mb-content hr{border:none; height:1px; background:linear-gradient(90deg,transparent,var(--c-line),transparent); margin:20px 0}
    .mb-content kbd{
      font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
      font-size:.85em; padding:.15em .4em; border:1px solid var(--c-line); border-bottom-width:2px;
      background:#101010; border-radius:.35em; color:#fff
    }

    @media (max-width:680px){
      .mb-content{font-size:15px; padding:22px 0 30px}
    }

    /* ===== Footer (Melbet) ===== */
.mbf-grid, .mbf-partners, .mbf-bottom{border:1px solid rgba(255,255,255,.08); border-radius:12px; background:#1f1f1f}
.mb-footer{padding:18px 0 24px; color:#cfd6e1}
.mbf-grid{display:grid; gap:18px; padding:16px; grid-template-columns: repeat(6, minmax(160px,1fr));}
.mbf-col h4{margin:0 0 10px; color:#fff; font-size:13px; letter-spacing:.3px; text-transform:uppercase}
.mbf-col a{display:block; color:#cfd6e1; text-decoration:none; padding:6px 0; font-size:14px}
.mbf-col a:hover{color:#ffb600}

.mbf-apps{display:flex; flex-direction:column}
.app-chip{display:inline-flex; align-items:center; gap:8px; padding:8px 12px; border-radius:10px; background:#2a2a2a; color:#fff; text-decoration:none; border:1px solid rgba(255,255,255,.08); margin:4px 0; width:max-content}
.app-chip:hover{background:#333}

.mbf-partners{margin-top:12px; padding:12px; display:grid; grid-template-columns:repeat(4,1fr); gap:12px; align-items:center}
.partner-card{height:84px; border-radius:10px; background:#151515; border:1px solid rgba(255,255,255,.08); display:flex; align-items:center; justify-content:center; overflow:hidden}
.partner-card img{max-height:75%; max-width:80%; filter:grayscale(1) brightness(.9); opacity:.8}
.partner-card.is-wide{grid-column:span 2; background:#141414}

.mbf-bottom{margin-top:12px; padding:12px 16px; display:flex; align-items:center; justify-content:space-between}
.mbf-age span{display:inline-flex; align-items:center; justify-content:center; width:56px; height:56px; border-radius:50%; background:#111; color:#fff; font-weight:900; border:4px solid #e53935}
.mbf-aware img{height:34px; opacity:.8; filter:grayscale(1)}

@media (max-width:1100px){
  .mbf-grid{grid-template-columns: repeat(3, minmax(160px,1fr))}
}
@media (max-width:720px){
  .mbf-grid{grid-template-columns: repeat(2, minmax(150px,1fr))}
  .mbf-partners{grid-template-columns:repeat(2,1fr)}
  .partner-card.is-wide{grid-column:span 2}
  .mbf-bottom{flex-direction:column; gap:12px}
}
@media (max-width:460px){
  .mbf-grid{grid-template-columns:1fr}
  .app-chip{width:100%}
}