:root{--ink:#14181F;--mut:#5B6675;--line:#E4E8EE;--bg:#fff;--alt:#F6F7F9;--dark:#111;--r:14px}
*{box-sizing:border-box}html{scroll-behavior:smooth}
body{margin:0;font:16px/1.6 system-ui,-apple-system,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;color:var(--ink);background:var(--bg);-webkit-font-smoothing:antialiased}
img{max-width:100%;height:auto}a{color:inherit}
.wrap{max-width:1120px;margin:0 auto;padding:0 20px}.narrow{max-width:720px}.c{text-align:center}
.skip{position:absolute;left:-999px;top:0;background:#fff;padding:8px 12px;z-index:50}.skip:focus{left:8px;top:8px}
h1,h2,h3{line-height:1.2;margin:0 0 .5em;letter-spacing:-.01em}h1{font-size:clamp(2rem,5vw,3.2rem);font-weight:800}h2{font-size:clamp(1.5rem,3vw,2.1rem);font-weight:800}h3{font-size:1.1rem;font-weight:700}
p{margin:0 0 1em}.lead{font-size:1.2rem;color:var(--mut);max-width:44rem}.c .lead{margin-left:auto;margin-right:auto}.note,.tiny{font-size:.85rem;color:var(--mut)}
/* header */
.sh{position:sticky;top:0;z-index:20;background:rgba(255,255,255,.95);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.sh-in{display:flex;align-items:center;justify-content:space-between;height:64px;gap:16px}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;font-weight:800;font-size:1.25rem;letter-spacing:-.02em}.brand img{display:block;max-height:40px;width:auto}
.sn{display:flex;align-items:center;gap:6px}.sn a{padding:8px 12px;border-radius:10px;text-decoration:none;font-weight:600;font-size:.95rem;color:#2A3340}.sn a:hover,.sn a.on{background:var(--alt)}
.mt{display:none}.burger{display:none;cursor:pointer;padding:10px}.burger span{display:block;width:22px;height:2px;background:var(--ink);margin:5px 0}
/* buttons */
.btn-acc,.btn-ghost{display:inline-block;border:0;border-radius:12px;padding:10px 18px;font:700 .95rem/1.2 inherit;text-decoration:none;cursor:pointer;text-align:center}
.sn a.btn-acc,.btn-acc{background:var(--acc);color:var(--on-acc)}.sn a.btn-acc:hover{background:var(--acc);filter:brightness(.93)}.btn-acc:hover{filter:brightness(.93)}
.btn-ghost{background:#fff;border:1.5px solid var(--ink);color:var(--ink)}.btn-ghost:hover{background:var(--alt)}
.big{padding:14px 26px;font-size:1.05rem}.cta-row{display:flex;flex-wrap:wrap;gap:12px;margin:24px 0 12px}
:focus-visible{outline:3px solid var(--acc);outline-offset:2px}
/* hero + sections */
.hero{background:linear-gradient(180deg,#111 0%,#1B1B1B 100%);color:#fff;padding:72px 0}.hero .lead{color:#C9CED6}.hero .note{color:#9AA3AF}
.hero .btn-ghost{background:transparent;border-color:#fff;color:#fff}.hero .btn-ghost:hover{background:rgba(255,255,255,.1)}
.hero-in{display:grid;gap:40px;align-items:center}.hero-in.has-img{grid-template-columns:1.1fr .9fr}.hero-i img{border-radius:var(--r);display:block;box-shadow:0 20px 50px rgba(0,0,0,.4)}
.sec{padding:64px 0}.sec.alt{background:var(--alt)}.phead{background:var(--alt);padding:48px 0 36px;border-bottom:1px solid var(--line)}.phead h1{font-size:clamp(1.8rem,4vw,2.6rem)}.phead .lead{margin:0}
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:32px}
.tile{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:24px}.tile p{color:var(--mut);margin:0}
.ib{display:inline-flex;align-items:center;justify-content:center;width:68px;height:68px;border-radius:16px;background:#111;color:var(--acc);margin-bottom:14px}.ib.big{width:88px;height:88px;border-radius:20px}
.steps{list-style:none;margin:32px auto 0;padding:0;max-width:720px;display:grid;gap:18px}.steps li{display:flex;gap:16px;align-items:flex-start}.steps p{margin:0;color:var(--mut)}.steps h3{margin-bottom:.2em}
.n{flex:none;width:40px;height:40px;border-radius:50%;background:var(--acc);color:var(--on-acc);font-weight:800;display:flex;align-items:center;justify-content:center}
.cta{background:#111;color:#fff;padding:64px 0}.cta p{color:#C9CED6;max-width:36rem;margin:0 auto 24px}
/* features */
.feat{display:grid;gap:28px}.fg{display:grid;grid-template-columns:1fr 1fr;gap:32px;padding:28px;border:1px solid var(--line);border-radius:var(--r);align-items:start}.fg.rev .fg-h{order:2}
.fg-h p{color:var(--mut);margin:0}.ticks{list-style:none;margin:0;padding:0;display:grid;gap:10px}.ticks li{position:relative;padding-left:28px}
.ticks li::before{content:"";position:absolute;left:0;top:.35em;width:16px;height:16px;border-radius:50%;background:var(--acc)}
.ticks li::after{content:"";position:absolute;left:5px;top:.55em;width:4px;height:8px;border:solid var(--on-acc);border-width:0 2px 2px 0;transform:rotate(45deg)}
/* faq */
.qa{border:1px solid var(--line);border-radius:12px;margin-bottom:10px;background:#fff}.qa summary{cursor:pointer;padding:16px 20px;font-weight:700;list-style:none;display:flex;justify-content:space-between;gap:12px}
.qa summary::-webkit-details-marker{display:none}.qa summary::after{content:"+";font-size:1.4rem;line-height:1;color:var(--mut)}.qa[open] summary::after{content:"\2212"}.ans{padding:0 20px 8px;color:#333}
/* forms */
.wform{display:grid;gap:16px}.two{display:grid;grid-template-columns:1fr 1fr;gap:16px}.f label{display:block;font-weight:600;font-size:.9rem;margin-bottom:6px}
.f input,.f select,.f textarea{width:100%;font:inherit;padding:12px 14px;border:1.5px solid #CBD2DB;border-radius:10px;background:#fff;color:var(--ink)}.f input:focus,.f select:focus,.f textarea:focus{outline:none;border-color:var(--ink);box-shadow:0 0 0 3px rgba(212,160,23,.35)}
.alert{background:#FDECEC;border:1px solid #F3B7B7;color:#8A1C1C;padding:12px 16px;border-radius:10px;margin-bottom:16px}
.okbox{background:var(--alt);border:1px solid var(--line);border-radius:var(--r);padding:32px;text-align:center;max-width:560px;margin:0 auto}
.two-col{display:grid;grid-template-columns:1.2fr .8fr;gap:32px;align-items:start}.prose ul{padding-left:1.2em}
/* footer */
.sf{background:#111;color:#C9CED6;padding:48px 0 0}.sf a{color:#fff;text-decoration:none}.sf a:hover{text-decoration:underline}.sf b{color:#fff;display:block;margin-bottom:10px}.sf p{margin:0 0 6px}
.sf-in{display:grid;grid-template-columns:2fr 1.4fr 1fr;gap:32px}.sf-b{padding-top:28px;padding-bottom:28px;margin-top:28px;border-top:1px solid #2A2A2A;font-size:.85rem;color:#8A93A0}
@media(max-width:860px){
 .grid3{grid-template-columns:1fr 1fr}.fg,.two-col,.hero-in.has-img{grid-template-columns:1fr}.fg.rev .fg-h{order:0}.sf-in{grid-template-columns:1fr 1fr}
 .burger{display:block}.sn{display:none;position:absolute;left:0;right:0;top:64px;background:#fff;border-bottom:1px solid var(--line);flex-direction:column;align-items:stretch;padding:12px 20px;gap:4px}
 .mt:checked~.sn{display:flex}.sn a{padding:12px}
}
@media(max-width:560px){.grid3,.two,.sf-in{grid-template-columns:1fr}.hero{padding:48px 0}.sec{padding:44px 0}}
@media(prefers-reduced-motion:no-preference){.tile{transition:transform .15s,box-shadow .15s}.tile:hover{transform:translateY(-2px);box-shadow:0 8px 24px rgba(0,0,0,.08)}}