*{margin:0;padding:0;box-sizing:border-box}
:root{
  --primary:#0b1c3d;--accent:#4f8eff;
  --bg:#f6f8fc;--bg-alt:#ffffff;
  --text:#0b1220;--muted:#4b5563;
  --card:#ffffff;--border:#e2e8f0;
  --radius:14px;
}
html{scroll-behavior:smooth}
body{font-family:'Inter',system-ui,-apple-system,sans-serif;color:var(--text);background:var(--bg);line-height:1.65;font-size:16px}
h1,h2,h3,h4{font-family:'Sora',sans-serif;color:var(--text);line-height:1.2;letter-spacing:-.02em}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.container{max-width:1180px;margin:0 auto;padding:0 24px}

/* === HEADER === */
.header{position:sticky;top:0;z-index:50;background:rgba(246,248,252,.85);backdrop-filter:blur(12px);border-bottom:1px solid var(--border)}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:64px}
.logo{font-weight:800;font-size:20px;letter-spacing:-.02em;color:var(--primary)}
.logo span{color:var(--accent)}
.nav-links{display:flex;gap:28px;align-items:center}
.nav-links a{font-size:14px;color:var(--muted);font-weight:500;transition:color .15s}
.nav-links a:hover{color:var(--primary)}
.nav-links a.nav-cta{background:var(--primary);color:#fff !important;padding:9px 18px;border-radius:8px;font-weight:600;font-size:14px}
.nav-links a.nav-cta:hover{background:var(--accent);color:#fff !important}
.burger{display:none;flex-direction:column;gap:4px;background:none;border:0;cursor:pointer;padding:8px}
.burger span{width:22px;height:2px;background:var(--text);border-radius:2px}
@media(max-width:860px){.nav-links{display:none}.burger{display:flex}}
.mob-nav{display:none;background:#fff;border-top:1px solid var(--border);padding:16px 24px}
.mob-nav.on{display:block}
.mob-nav a{display:block;padding:10px 0;font-size:15px;color:var(--text);border-bottom:1px solid var(--border)}

/* === HERO SPLIT === */
.hero{padding:80px 0 64px}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:64px;align-items:center}
.kicker{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;color:var(--accent);background:rgba(79,142,255,.1);padding:6px 12px;border-radius:99px;margin-bottom:20px}
.kicker::before{content:'';width:6px;height:6px;border-radius:50%;background:var(--accent)}
h1.hero-title{font-size:56px;font-weight:800;margin-bottom:24px}
h1.hero-title span{color:var(--accent)}
.hero-desc{font-size:18px;color:var(--muted);margin-bottom:32px;max-width:540px}
.hero-cta{display:flex;gap:12px;flex-wrap:wrap;margin-bottom:32px}
.btn-primary{background:var(--primary);color:#fff;padding:13px 24px;border-radius:9px;font-weight:600;font-size:15px;border:0;cursor:pointer;display:inline-flex;align-items:center;gap:8px;transition:.18s}
.btn-primary:hover{background:var(--accent);transform:translateY(-1px)}
.btn-ghost{background:transparent;color:var(--text);padding:13px 24px;border-radius:9px;font-weight:600;font-size:15px;border:1px solid var(--border);cursor:pointer;transition:.18s}
.btn-ghost:hover{border-color:var(--primary)}
.trust{display:flex;gap:24px;flex-wrap:wrap;font-size:13px;color:var(--muted)}
.trust b{color:var(--text);font-weight:600}

/* mockup right */
.mockup{background:#0b1220;border-radius:14px;overflow:hidden;border:1px solid #1f2937;box-shadow:0 24px 60px -20px rgba(11,28,61,.3)}
.mockup-top{display:flex;gap:6px;padding:12px 14px;background:#111827;border-bottom:1px solid #1f2937}
.mockup-top span{width:11px;height:11px;border-radius:50%}
.mockup-top span:nth-child(1){background:#ef4444}.mockup-top span:nth-child(2){background:#f59e0b}.mockup-top span:nth-child(3){background:#10b981}
.mockup-body{padding:22px;font-family:ui-monospace,Menlo,monospace;font-size:13px;color:#94a3b8;line-height:1.7}
.mockup-body .ln1{color:#4f8eff}
.mockup-body .ln2{color:#10b981}
.mockup-body .ln3{color:#f59e0b}
.mockup-body .ln4{color:#cbd5e1}
.mockup-body .ln-c{color:#475569}

@media(max-width:860px){.hero-grid{grid-template-columns:1fr;gap:40px}.hero{padding:48px 0 40px}h1.hero-title{font-size:38px}}

/* === FEATURES (4-grid) === */
.features{padding:80px 0;background:var(--bg-alt)}
.sec-head{text-align:center;margin-bottom:48px}
.sec-head h2{font-size:36px;font-weight:800;margin-bottom:12px}
.sec-head p{color:var(--muted);font-size:17px;max-width:620px;margin:0 auto}
.feat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.feat{background:var(--card);border:1px solid var(--border);border-radius:14px;padding:28px;transition:.2s}
.feat:hover{border-color:var(--accent);transform:translateY(-3px);box-shadow:0 12px 32px -12px rgba(11,28,61,.12)}
.feat .icon{width:42px;height:42px;border-radius:10px;background:rgba(79,142,255,.12);color:var(--accent);display:flex;align-items:center;justify-content:center;font-size:22px;margin-bottom:18px}
.feat h3{font-size:17px;font-weight:700;margin-bottom:8px}
.feat p{color:var(--muted);font-size:14px;line-height:1.6}
@media(max-width:980px){.feat-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:520px){.feat-grid{grid-template-columns:1fr}}

/* === PLATFORMS === */
.platforms{padding:80px 0}
.plat-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:14px;margin-top:36px}
.plat{background:var(--card);border:1px solid var(--border);border-radius:12px;padding:22px 16px;text-align:center;display:flex;flex-direction:column;align-items:center;gap:10px;transition:.18s;cursor:pointer;color:inherit}
.plat:hover{border-color:var(--primary);background:rgba(11,28,61,.02)}
.plat .pico{width:36px;height:36px;color:var(--primary)}
.plat .pn{font-size:13px;font-weight:600}
@media(max-width:860px){.plat-grid{grid-template-columns:repeat(3,1fr)}}
@media(max-width:480px){.plat-grid{grid-template-columns:repeat(2,1fr)}}

/* === CTA BANNER === */
.ctab{padding:64px 0}
.ctab-card{background:var(--primary);color:#fff;border-radius:20px;padding:56px 48px;text-align:center;position:relative;overflow:hidden}
.ctab-card::before{content:'';position:absolute;inset:0;background:radial-gradient(ellipse at top left,rgba(79,142,255,.4),transparent 60%);pointer-events:none}
.ctab-card h2{color:#fff;font-size:32px;margin-bottom:14px;position:relative}
.ctab-card p{color:rgba(255,255,255,.78);margin-bottom:26px;max-width:540px;margin-left:auto;margin-right:auto;position:relative}
.ctab-card .btn-primary{background:#fff;color:var(--primary);position:relative}
.ctab-card .btn-primary:hover{background:var(--accent);color:#fff}

/* === FAQ accordion === */
.faq{padding:80px 0;background:var(--bg-alt)}
.faq-list{max-width:760px;margin:36px auto 0}
.faq-item{border-bottom:1px solid var(--border);padding:18px 0}
.faq-q{display:flex;justify-content:space-between;align-items:center;cursor:pointer;font-weight:600;font-size:16px;list-style:none}
.faq-q::-webkit-details-marker{display:none}
.faq-q::after{content:'+';font-size:22px;color:var(--accent);transition:.2s}
.faq-item[open] .faq-q::after{transform:rotate(45deg)}
.faq-a{margin-top:10px;color:var(--muted);font-size:15px;line-height:1.7}

/* === FOOTER === */
.footer{padding:48px 0 28px;background:var(--primary);color:rgba(255,255,255,.7)}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:40px;margin-bottom:32px}
.footer h4{color:#fff;font-size:14px;font-weight:700;margin-bottom:14px;text-transform:uppercase;letter-spacing:.05em}
.footer a{display:block;color:rgba(255,255,255,.65);font-size:14px;padding:4px 0}
.footer a:hover{color:#fff}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);padding-top:20px;font-size:13px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px}
@media(max-width:760px){.footer-grid{grid-template-columns:1fr;gap:24px}}

/* reveal */
.reveal{opacity:0;transform:translateY(20px);transition:.6s ease-out}
.reveal.on{opacity:1;transform:none}

/* === instr page === */
.steps{padding:60px 0}
.step{display:grid;grid-template-columns:64px 1fr;gap:24px;background:var(--card);border:1px solid var(--border);border-radius:14px;padding:32px;margin-bottom:20px}
.step-n{width:48px;height:48px;border-radius:10px;background:var(--primary);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:800;font-size:20px}
.step h3{font-size:20px;margin-bottom:8px}
.step p{color:var(--muted);font-size:15px;line-height:1.7;margin-bottom:14px}
.after{padding:48px 0;background:var(--bg-alt)}
.after-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px;margin-top:24px}
.after-card{background:var(--card);border:1px solid var(--border);border-radius:12px;padding:20px}
.after-card h4{font-size:16px;margin-bottom:6px}
.after-card p{color:var(--muted);font-size:14px}
@media(max-width:680px){.after-grid{grid-template-columns:1fr}.step{grid-template-columns:1fr;text-align:left}}