:root{
  --bg:#0A0F1E;
  --bg-soft:#11192E;
  --bg-card:#151E37;
  --line:rgba(255,255,255,0.08);
  --text:#E9EEF8;
  --muted:#8A96B0;
  --accent:#5CE1C5;
  --accent-2:#6D7CFF;
  --accent-glow:0 0 24px rgba(92,225,197,0.35);
  --radius:18px;
  --font:"Instrument Sans", "Inter", system-ui, sans-serif;
  --mono:"JetBrains Mono", monospace;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--text);font-family:var(--font);line-height:1.6;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
img{max-width:100%}
.sds-container{width:min(1220px,92vw);margin:0 auto}
.sds-skip{position:absolute;left:-9999px;top:auto;width:1px;height:1px;overflow:hidden}
.sds-skip:focus{left:12px;top:12px;width:auto;height:auto;background:#fff;color:#000;padding:8px 14px;z-index:9999;border-radius:8px}
/* header */
.sds-header{position:sticky;top:0;z-index:50;background:rgba(10,15,30,0.82);backdrop-filter:blur(18px);border-bottom:1px solid var(--line)}
.sds-header-inner{display:flex;align-items:center;justify-content:space-between;padding:18px 0;gap:24px}
.sds-brand{display:flex;align-items:center;gap:12px;font-weight:700;letter-spacing:-0.02em;font-size:18px}
.sds-brand-mark{width:32px;height:32px;border-radius:10px;background:linear-gradient(135deg,var(--accent),var(--accent-2));display:grid;place-items:center;box-shadow:var(--accent-glow)}
.sds-nav{display:flex;align-items:center;gap:28px}
.sds-nav a{font-size:14px;color:var(--muted);transition:.2s}
.sds-nav a:hover{color:var(--text)}
.sds-nav a.sds-nav-active{color:var(--text)}
.sds-header-actions{display:flex;align-items:center;gap:14px}
.sds-btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:999px;font-weight:600;font-size:14px;letter-spacing:-0.01em;transition:.22s;border:1px solid transparent;cursor:pointer;white-space:nowrap}
.sds-btn--header{padding:12px 28px;min-height:44px;background:#fff;color:#0A0F1E;box-shadow:0 6px 20px rgba(255,255,255,0.12)}
.sds-btn--header:hover{transform:translateY(-1px);box-shadow:0 10px 28px rgba(255,255,255,0.18)}
.sds-btn--primary{padding:14px 30px;background:linear-gradient(135deg,var(--accent),#7CF0D6);color:#06101A;box-shadow:var(--accent-glow)}
.sds-btn--ghost{padding:13px 26px;background:transparent;border-color:var(--line);color:var(--text)}
.sds-burger{display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--line);background:transparent;color:var(--text)}
@media(max-width:900px){
  .sds-nav{display:none}
  .sds-burger{display:grid;place-items:center}
  .sds-nav.sds-nav-open{display:flex;position:fixed;inset:68px 0 auto 0;background:rgba(10,15,30,0.96);backdrop-filter:blur(20px);flex-direction:column;align-items:flex-start;padding:28px 6vw 32px;border-bottom:1px solid var(--line);gap:18px}
  .sds-header-actions .sds-btn--header{padding:10px 18px;font-size:13px}
}
/* hero */
.sds-hero{padding:88px 0 56px;position:relative;overflow:hidden}
.sds-hero-grid{display:grid;grid-template-columns:1.05fr 0.95fr;gap:48px;align-items:center}
.sds-kicker{display:inline-flex;align-items:center;gap:8px;padding:6px 12px;border-radius:999px;border:1px solid var(--line);background:rgba(255,255,255,0.04);font-family:var(--mono);font-size:11px;letter-spacing:0.08em;color:var(--accent);text-transform:uppercase}
.sds-h1{font-size:clamp(36px,5.2vw,66px);line-height:0.92;letter-spacing:-0.04em;margin:18px 0 18px;font-weight:750}
.sds-lead{color:var(--muted);font-size:18px;max-width:48ch}
.sds-hero-actions{display:flex;gap:12px;margin-top:28px;flex-wrap:wrap}
.sds-hero-visual{position:relative;border-radius:24px;background:linear-gradient(180deg,rgba(255,255,255,0.06),rgba(255,255,255,0.02));border:1px solid var(--line);padding:14px}
.sds-code{font-family:var(--mono);font-size:12px;background:#080D1C;border:1px solid var(--line);border-radius:16px;padding:18px;color:#A8B6D0;line-height:1.7}
.sds-code b{color:var(--accent)}
/* trust */
.sds-trust{border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:18px 0;background:rgba(255,255,255,0.02)}
.sds-trust-row{display:flex;flex-wrap:wrap;gap:22px;align-items:center;color:var(--muted);font-size:13px;font-family:var(--mono)}
.sds-trust-row strong{color:var(--text)}
/* sections */
.sds-section{padding:92px 0}
.sds-section--soft{background:var(--bg-soft);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.sds-eyebrow{font-family:var(--mono);font-size:11px;letter-spacing:0.12em;text-transform:uppercase;color:var(--accent);margin-bottom:12px}
.sds-h2{font-size:clamp(28px,3.6vw,44px);line-height:0.95;letter-spacing:-0.03em;margin:0 0 16px;font-weight:720}
.sds-h3{font-size:20px;letter-spacing:-0.02em;margin:0}
.sds-grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.sds-grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
.sds-card{background:var(--bg-card);border:1px solid var(--line);border-radius:var(--radius);padding:24px;transition:.25s}
.sds-card:hover{transform:translateY(-2px);border-color:rgba(92,225,197,0.22)}
.sds-card-icon{width:40px;height:40px;border-radius:12px;display:grid;place-items:center;background:rgba(92,225,197,0.12);border:1px solid rgba(92,225,197,0.2);margin-bottom:16px}
.sds-price{font-size:32px;font-weight:750;letter-spacing:-0.03em}
.sds-price small{font-size:14px;color:var(--muted);font-weight:500}
.sds-list{list-style:none;padding:0;margin:14px 0 0}
.sds-list li{display:flex;gap:10px;padding:8px 0;border-bottom:1px dashed rgba(255,255,255,0.06);font-size:14px;color:var(--muted)}
.sds-list li span{color:var(--text)}
.sds-add-table{width:100%;border-collapse:collapse;margin-top:18px}
.sds-add-table tr{border-bottom:1px solid var(--line)}
.sds-add-table td{padding:14px 10px;font-size:14px}
.sds-add-table td:last-child{text-align:right}
.sds-badge{padding:4px 10px;border-radius:999px;background:rgba(92,225,197,0.12);border:1px solid rgba(92,225,197,0.22);font-size:11px;font-family:var(--mono);color:var(--accent)}
.sds-process{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.sds-step{position:relative;padding:20px;background:linear-gradient(180deg,rgba(255,255,255,0.04),transparent);border:1px solid var(--line);border-radius:16px}
.sds-step-num{font-family:var(--mono);font-size:12px;color:var(--accent);margin-bottom:8px}
.sds-guarantee{display:flex;align-items:center;gap:20px;background:linear-gradient(90deg,rgba(92,225,197,0.14),rgba(109,124,255,0.14));border:1px solid rgba(92,225,197,0.22);border-radius:18px;padding:20px 22px}
.sds-compare{display:grid;grid-template-columns:1fr 1fr;gap:1px;background:var(--line);border:1px solid var(--line);border-radius:18px;overflow:hidden}
.sds-compare-col{background:var(--bg-card);padding:22px}
.sds-faq-item{border-bottom:1px solid var(--line)}
.sds-faq-q{width:100%;text-align:left;background:none;border:0;color:var(--text);padding:18px 0;font-size:16px;font-weight:600;display:flex;justify-content:space-between;align-items:center;cursor:pointer}
.sds-faq-a{color:var(--muted);font-size:14px;padding-bottom:18px;display:none}
.sds-faq-item.sds-open .sds-faq-a{display:block}
.sds-team{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.sds-avatar{width:100%;aspect-ratio:1;border-radius:16px;background:linear-gradient(135deg,#1A284E,#24365F);display:grid;place-items:center;font-weight:700;color:#8EA3CE;border:1px solid var(--line)}
.sds-reviews{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.sds-stat-row{display:flex;gap:28px;flex-wrap:wrap;margin-top:22px}
.sds-stat strong{font-size:28px;display:block;letter-spacing:-0.03em}
.sds-stat span{font-size:12px;color:var(--muted);font-family:var(--mono)}
.sds-footer{border-top:1px solid var(--line);padding:56px 0 28px;background:#080D1C}
.sds-footer-grid{display:grid;grid-template-columns:1.2fr 0.8fr 0.8fr 1fr;gap:24px}
.sds-footer a{color:var(--muted);font-size:14px}
.sds-footer a:hover{color:var(--text)}
.sds-cookie{position:fixed;bottom:16px;left:16px;right:16px;max-width:420px;background:#11192E;border:1px solid var(--line);border-radius:16px;padding:16px;display:none;z-index:80;box-shadow:0 16px 40px rgba(0,0,0,0.4)}
.sds-cookie.sds-show{display:block}
.sds-reveal{opacity:0;transform:translateY(14px);transition:opacity .6s ease, transform .6s ease}
.sds-reveal.sds-visible{opacity:1;transform:none}
@media(max-width:900px){
  .sds-hero-grid,.sds-grid-3,.sds-grid-2,.sds-process,.sds-team,.sds-reviews,.sds-footer-grid,.sds-compare{grid-template-columns:1fr}
}