:root{
  --bg:#050507; --bg2:#0c0d12; --panel:#111319; --line:#1f2230; --text:#f4f5f8; --muted:#9aa0ae;
  --blue:#2f55ff; --blue2:#5b7bff; --sha:#f7931a; --blake:#5b7bff;
  --radius:14px; --wrap:1200px;
  --font:"Inter","Inter Variable",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif; --mono:"JetBrains Mono",ui-monospace,SFMono-Regular,Menlo,monospace;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--text);font:400 17px/1.6 var(--font);-webkit-font-smoothing:antialiased}
a{color:inherit}
img{max-width:100%;height:auto;display:block}
code{font-family:var(--mono);font-size:.9em;background:#15182a;border:1px solid #232845;padding:.1em .4em;border-radius:6px}
.dg-wrap{max-width:var(--wrap);margin:0 auto;padding:0 24px}
.dg-muted{color:var(--muted)}
.dg-skip{position:absolute;left:-999px}.dg-skip:focus{left:16px;top:16px;background:#fff;color:#000;padding:8px 12px;z-index:99}

/* header */
.dg-header{position:sticky;top:0;z-index:50;background:rgba(5,5,7,.82);backdrop-filter:saturate(1.4) blur(12px);border-bottom:1px solid rgba(255,255,255,.06)}
.dg-header__in{display:flex;align-items:center;justify-content:space-between;height:76px;gap:24px}
.dg-logo img,.custom-logo{height:36px;width:auto}
.dg-nav{display:flex;align-items:center;gap:28px}
.dg-menu{display:flex;gap:28px;list-style:none;margin:0;padding:0}
.dg-menu a{text-decoration:none;font-size:14px;font-weight:600;letter-spacing:.06em;text-transform:uppercase;color:#c9ccd6}
.dg-menu a:hover,.dg-menu .current-menu-item a,.dg-menu .current-category-ancestor a{color:#fff}
.dg-burger{display:none;background:none;border:0;padding:10px;cursor:pointer}
.dg-burger span{display:block;width:22px;height:2px;background:#fff;margin:5px 0}

/* buttons */
.dg-btn{display:inline-flex;align-items:center;gap:8px;background:var(--blue);color:#fff;text-decoration:none;font-weight:700;font-size:15px;letter-spacing:.04em;text-transform:uppercase;padding:15px 26px;border-radius:999px;border:1px solid var(--blue);transition:.2s}
.dg-btn:hover{background:var(--blue2);border-color:var(--blue2)}
.dg-btn--ghost{background:transparent;border-color:#3a3f55}
.dg-btn--ghost:hover{background:#12151f;border-color:#5b6280}
.dg-btn--sm{padding:9px 16px;font-size:13px;background:transparent;border-color:#3a3f55}
.dg-link{color:var(--blue2);text-decoration:none;font-weight:600;white-space:nowrap}
.dg-link:hover{text-decoration:underline}

/* hero */
.dg-hero{position:relative;overflow:hidden;border-bottom:1px solid var(--line)}
.dg-hero__in{position:relative;z-index:2;padding:120px 24px 110px}
.dg-kicker{font-size:13px;font-weight:700;letter-spacing:.2em;text-transform:uppercase;color:var(--blue2);margin:0 0 18px}
.dg-hero h1{font-size:clamp(44px,7vw,92px);line-height:1.02;letter-spacing:-.035em;font-weight:800;margin:0 0 26px;max-width:900px}
.dg-lead{font-size:clamp(18px,2vw,22px);color:#c3c7d2;max-width:680px;margin:0 0 36px}
.dg-hero__cta{display:flex;gap:14px;flex-wrap:wrap}
.dg-point{margin-top:56px;display:inline-flex;flex-wrap:wrap;align-items:center;gap:14px;border:1px solid var(--line);background:rgba(17,19,25,.8);border-radius:12px;padding:14px 18px}
.dg-point__label{font-size:13px;letter-spacing:.14em;text-transform:uppercase;color:var(--muted);font-weight:600}
.dg-point code{background:none;border:0;font-size:17px;color:#fff;padding:0}
.dg-point em{color:var(--blue2);font-style:normal}
.dg-hero__rays{position:absolute;right:4%;top:50%;width:380px;height:430px;transform:translateY(-50%);z-index:1;opacity:.85;
  background:url(../img/datum-mark.svg) center/contain no-repeat;filter:drop-shadow(0 0 70px rgba(47,85,255,.45))}
.dg-hero::before{content:"";position:absolute;inset:0;background:radial-gradient(ellipse at 80% 50%,rgba(47,85,255,.22),transparent 55%);z-index:0}

/* sections */
.dg-section{padding:96px 0;border-bottom:1px solid var(--line)}
.dg-section--alt{background:var(--bg2)}
.dg-section--tight{padding:56px 0 96px}
.dg-section h2{font-size:clamp(30px,4vw,46px);letter-spacing:-.025em;line-height:1.1;margin:0 0 12px;font-weight:800}
.dg-section__head{display:flex;justify-content:space-between;align-items:flex-end;gap:24px;margin-bottom:40px}
.dg-section__head p{margin:0;max-width:640px}
.dg-section__head a{color:var(--blue2)}

/* cards */
.dg-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.dg-card{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;display:flex;flex-direction:column;transition:.2s}
.dg-card:hover{border-color:#343a58;transform:translateY(-3px)}
.dg-card__media{position:relative;display:block;aspect-ratio:16/9;overflow:hidden;background:#000}
.dg-card__media img{width:100%;height:100%;object-fit:cover;transition:.4s}
.dg-card:hover .dg-card__media img{transform:scale(1.03)}
.dg-play{position:absolute;right:18px;top:18px;width:46px;height:46px;opacity:0;transition:.2s;border-radius:50%;background:rgba(47,85,255,.92);box-shadow:0 8px 30px rgba(0,0,0,.4)}
.dg-card:hover .dg-play{opacity:1}
.dg-play::after{content:"";position:absolute;left:18px;top:14px;border-left:13px solid #fff;border-top:9px solid transparent;border-bottom:9px solid transparent}
.dg-dur{position:absolute;right:10px;bottom:10px;background:rgba(0,0,0,.78);font:600 13px var(--mono);padding:3px 8px;border-radius:6px}
.dg-card__body{padding:18px 22px 22px}
.dg-card h3{font-size:19px;margin:0 0 6px;letter-spacing:-.01em}
.dg-card h3 a{text-decoration:none}
.dg-card p{margin:0;color:var(--muted);font-size:15px;line-height:1.55;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.dg-chips{display:flex;gap:8px;flex-wrap:wrap}
.dg-chip{font-size:12px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;padding:4px 10px;border-radius:999px;border:1px solid #2c3146;color:#c9ccd6}
.dg-chip--sha256{color:var(--sha);border-color:rgba(247,147,26,.4);background:rgba(247,147,26,.08)}
.dg-chip--blake2b{color:var(--blake);border-color:rgba(91,123,255,.45);background:rgba(91,123,255,.1)}

/* features & faq */
.dg-features{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;margin-top:44px}
.dg-features div{border-top:2px solid var(--blue);padding-top:20px}
.dg-features b{font:600 14px var(--mono);color:var(--blue2)}
.dg-features h3{margin:8px 0;font-size:20px}
.dg-features p{margin:0;color:var(--muted);font-size:15px}
.dg-faq{display:grid;grid-template-columns:1fr 2fr;gap:48px}
details{border-bottom:1px solid var(--line);padding:20px 0}
summary{cursor:pointer;font-weight:700;font-size:19px;list-style:none;display:flex;justify-content:space-between;gap:16px}
summary::-webkit-details-marker{display:none}
summary::after{content:"+";color:var(--blue2);font-size:24px;line-height:1}
details[open] summary::after{content:"–"}
details p{color:#c3c7d2;margin:12px 0 0}

/* page head / tabs */
.dg-pagehead{padding:84px 0 36px;border-bottom:1px solid var(--line);background:radial-gradient(ellipse at 85% 0%,rgba(47,85,255,.18),transparent 55%)}
.dg-pagehead h1{font-size:clamp(38px,5vw,64px);letter-spacing:-.03em;line-height:1.05;margin:0 0 16px}
.dg-tabs{display:flex;gap:8px;margin-top:28px;flex-wrap:wrap}
.dg-tabs a{text-decoration:none;font-weight:600;font-size:15px;padding:10px 18px;border-radius:999px;border:1px solid #2c3146;color:#c9ccd6}
.dg-tabs a.is-on{background:#fff;color:#000;border-color:#fff}

/* single */
.dg-single{padding:48px 0 96px}
.dg-crumbs{font-size:14px;color:var(--muted);margin-bottom:14px}
.dg-crumbs a{color:var(--muted)}
.dg-single h1{font-size:clamp(32px,4.4vw,54px);letter-spacing:-.03em;line-height:1.08;margin:0 0 16px}
.dg-player-layout{display:grid;grid-template-columns:1fr 320px;gap:24px;margin:28px 0 40px}
.dg-player{background:#000;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;aspect-ratio:16/9}
.dg-player video,.dg-player img{width:100%;height:100%;display:block}
.dg-chapters{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:18px}
.dg-chapters h2{font-size:13px;letter-spacing:.16em;text-transform:uppercase;color:var(--muted);margin:0 0 10px}
.dg-chapters ol{list-style:none;margin:0;padding:0}
.dg-chapters button{width:100%;text-align:left;background:none;border:0;color:var(--text);font:500 15px var(--font);padding:10px;border-radius:8px;cursor:pointer;display:flex;gap:12px}
.dg-chapters button:hover,.dg-chapters button.is-on{background:#1a1e2c}
.dg-chapters button span{font-family:var(--mono);color:var(--blue2);font-size:13px;min-width:40px;padding-top:2px}
.dg-prose{max-width:780px}
.dg-prose h2{font-size:26px;margin:36px 0 12px}
.dg-prose a{color:var(--blue2)}
.dg-prose pre{background:#0b0d14;border:1px solid var(--line);border-radius:12px;padding:18px 20px;overflow:auto}
.dg-prose pre code{background:none;border:0;padding:0;font-size:15px;line-height:1.7}
.dg-more{font-size:28px;margin:64px 0 24px}

/* community */
.dg-community__in{display:grid;grid-template-columns:1.1fr 1fr;gap:72px;align-items:start}
.dg-community .dg-lead{margin-bottom:28px}
.dg-notice{margin-top:32px;border-left:3px solid var(--sha);padding:4px 0 4px 18px}
.dg-notice strong{display:block;font-size:15px;letter-spacing:.08em;text-transform:uppercase;color:var(--sha);margin-bottom:6px}
.dg-notice p{margin:0;color:#c3c7d2}
.dg-notice b{color:#fff;font-weight:600}
.dg-verify{list-style:none;margin:6px 0 0;padding:0}
.dg-verify li{display:flex;gap:16px;padding:20px 0;border-bottom:1px solid var(--line)}
.dg-verify li:first-child{padding-top:0}
.dg-verify b{flex:0 0 30px;height:30px;border-radius:50%;border:1px solid var(--blue2);color:var(--blue2);font:600 13px var(--mono);display:flex;align-items:center;justify-content:center}
.dg-verify h4{margin:3px 0 4px;font-size:17px}
.dg-verify p{margin:0;color:var(--muted);font-size:15px}
.dg-small{font-size:14px;margin:18px 0 0}

/* footer */
.dg-footer{padding:72px 0 32px;background:#000}
.dg-footer__grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:40px}
.dg-footer__brand p{color:var(--muted);max-width:340px;font-size:15px}
.dg-footer .dg-logo img{height:30px;margin-bottom:14px}
.dg-footer h4{font-size:13px;letter-spacing:.16em;text-transform:uppercase;color:var(--muted);margin:6px 0 14px}
.dg-footer ul{list-style:none;margin:0;padding:0}
.dg-footer li{margin:0 0 10px;font-size:15px}
.dg-footer li a{text-decoration:none}
.dg-footer li a:hover{color:var(--blue2)}
.dg-footer__base{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;margin-top:56px;padding-top:24px;border-top:1px solid var(--line);font-size:13px;color:#7d8391}
.nav-links{display:flex;gap:10px;margin-top:32px}
.nav-links a,.nav-links span{padding:8px 14px;border:1px solid var(--line);border-radius:8px;text-decoration:none}

/* responsive */
@media (max-width:1000px){
  .dg-grid{grid-template-columns:repeat(2,1fr)}
  .dg-features{grid-template-columns:repeat(2,1fr)}
  .dg-player-layout{grid-template-columns:1fr}
  .dg-footer__grid{grid-template-columns:1fr 1fr}
  .dg-community__in{grid-template-columns:1fr;gap:40px}
}
@media (max-width:760px){
  body{font-size:16px}
  .dg-wrap{padding:0 16px}
  .dg-burger{display:block}
  .dg-nav{display:none;position:absolute;left:0;right:0;top:76px;background:#07080b;border-bottom:1px solid var(--line);flex-direction:column;align-items:flex-start;padding:16px;gap:16px}
  .dg-nav.is-open{display:flex}
  .dg-menu{flex-direction:column;gap:14px}
  .dg-hero__in{padding:72px 16px}
  .dg-hero__rays{display:none}
  .dg-grid,.dg-features,.dg-faq,.dg-footer__grid,.dg-community__in{grid-template-columns:1fr}
  .dg-community__in{gap:40px}
  .dg-section{padding:64px 0}
  .dg-section__head{flex-direction:column;align-items:flex-start}
  .dg-point code{font-size:14px;word-break:break-all}
}
.dg-player__empty{width:100%;height:100%;background:#000 center/cover no-repeat;display:flex;align-items:flex-end;justify-content:center;padding:20px}
.dg-player__empty span{background:rgba(5,5,7,.85);border:1px solid var(--line);border-radius:10px;padding:10px 16px;font-size:15px;color:#c3c7d2}
.dg-player-layout--solo{grid-template-columns:1fr}
.dg-player__mount{width:100%;height:100%;background:#000 center/cover no-repeat;display:flex;align-items:center;justify-content:center}
.dg-player__mount video{width:100%;height:100%;display:block}