/* letterbox25.com — modern, swiss, light */
*,*::before,*::after{box-sizing:border-box}
:root{
  --ink:#111111; --paper:#ffffff; --sand:#f4f2ee; --dark:#16181c;
  --line:#e2ded7; --mut:#6d6a64; --acc:#ff4a1c;
}
html{scroll-behavior:smooth}
body{
  margin:0;background:var(--paper);color:var(--ink);
  font:16px/1.6 "Helvetica Neue",Helvetica,Arial,-apple-system,BlinkMacSystemFont,sans-serif;
  -webkit-font-smoothing:antialiased;
}
.wrap{max-width:1140px;margin:0 auto;padding:0 28px}
.narrow{max-width:660px}
h1,h2,h3{margin:0 0 .4em;letter-spacing:-.035em;line-height:1.02;font-weight:700}
h1{font-size:clamp(48px,10vw,116px)}
h2{font-size:clamp(30px,4.4vw,50px)}
h3{font-size:17px;line-height:1.3;letter-spacing:-.015em}
p{margin:0 0 1em}
a{color:inherit}
.kicker{font-size:11px;letter-spacing:.18em;text-transform:uppercase;color:var(--acc);font-weight:700;margin:0 0 20px}
.fine{font-size:12.5px;color:var(--mut);line-height:1.5}
.center{text-align:center}

/* bar */
.bar{border-bottom:1px solid var(--line);position:sticky;top:0;background:rgba(255,255,255,.93);backdrop-filter:blur(10px);z-index:20}
.bar-in{display:flex;align-items:center;height:66px;gap:34px}
.mark{font-weight:700;font-size:18px;letter-spacing:-.04em;text-decoration:none}
.mark span{color:var(--acc)}
.bar nav{display:flex;gap:26px;margin-left:auto;font-size:14px}
.bar nav a{text-decoration:none;color:var(--mut)}
.bar nav a:hover{color:var(--ink)}

.btn{display:inline-block;text-decoration:none;cursor:pointer;font:inherit;font-size:14px;font-weight:600;
  border:1px solid var(--ink);background:transparent;color:var(--ink);padding:10px 18px;border-radius:0;
  transition:background .14s,color .14s}
.btn:hover{background:var(--ink);color:#fff}
.btn-fill{background:var(--acc);border-color:var(--acc);color:#fff}
.btn-fill:hover{background:#d93a10;border-color:#d93a10;color:#fff}
.btn-lg{padding:15px 30px;font-size:15px}
.btn-block{display:block;width:100%;text-align:center}

/* hero */
.hero{padding:76px 0 0}
.hero h1{margin-bottom:44px}
.hero-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:60px;align-items:start;
  border-top:1px solid var(--line);padding-top:30px}
.lead{font-size:19px;line-height:1.55;max-width:44ch;margin:0}
.hero-side .fine{margin:16px 0 0;max-width:34ch}
.numbers{display:grid;grid-template-columns:repeat(4,1fr);margin-top:70px;border-top:1px solid var(--ink)}
.numbers div{padding:22px 0 26px;border-right:1px solid var(--line)}
.numbers div:last-child{border-right:0}
.numbers b{display:block;font-size:38px;letter-spacing:-.045em;line-height:1}
.numbers span{display:block;font-size:12.5px;color:var(--mut);margin-top:7px}

/* sections */
.sec{padding:96px 0;border-top:1px solid var(--line)}
.sec-dark{background:var(--dark);color:#f2efe9;border-top-color:var(--dark)}
.sec-dark .sec-head p,.sec-dark .fine{color:#9a968e}
.sec-head{margin-bottom:54px;max-width:640px}
.sec-head p{color:var(--mut);font-size:17px;margin:0}

/* how */
.how{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(4,1fr);gap:0}
.how li{padding:26px 26px 26px 0;border-top:2px solid var(--ink)}
.how li+li{padding-left:26px;border-left:1px solid var(--line)}
.n{display:block;font-size:12px;font-weight:700;color:var(--acc);letter-spacing:.1em;margin-bottom:16px}
.how p{color:var(--mut);font-size:14.5px;margin:0}
.how b{color:var(--ink);font-weight:600}

/* features grid */
.grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:#2a2d33;border:1px solid #2a2d33}
.grid article{background:var(--dark);padding:28px 24px 30px}
.grid p{color:#9a968e;font-size:14px;margin:0}
.grid h3{color:#fff;margin-bottom:11px}

/* pricing */
.price-card{display:grid;grid-template-columns:1fr 1fr;gap:0;border:2px solid var(--ink)}
.price-left{padding:44px;border-right:2px solid var(--ink)}
.amount{display:flex;align-items:baseline;gap:9px;margin-bottom:14px}
.amount b{font-size:76px;letter-spacing:-.05em;line-height:.9}
.amount span{font-size:16px;color:var(--mut)}
.price-left .btn{margin-top:22px}
.price-right{list-style:none;margin:0;padding:44px;background:var(--sand);display:grid;gap:12px;font-size:15px;align-content:start}
.price-right li{padding-left:24px;position:relative}
.price-right li::before{content:"→";position:absolute;left:0;color:var(--acc);font-weight:700}

/* form */
form{display:grid;gap:20px}
form label{display:grid;gap:8px;font-size:13px;color:#9a968e}
form input[type=text],form input[type=email],form input[type=password]{
  width:100%;background:#1f2228;border:1px solid #33373f;color:#f2efe9;
  padding:14px 15px;font:inherit;font-size:15px;border-radius:0}
form input:focus{outline:2px solid var(--acc);outline-offset:0;border-color:transparent}
.addr{display:flex;align-items:center;gap:12px}
.addr input{flex:1}
.addr em{font-style:normal;color:#9a968e;font-size:15px;white-space:nowrap}
.check{display:flex!important;align-items:flex-start;gap:10px;font-size:13px}
.check input{margin-top:3px}
.alert{border:1px solid #ff6b45;background:rgba(255,74,28,.1);color:#ffb6a0;padding:16px 18px;margin-bottom:26px;font-size:14.5px}
.alert b{display:block;color:#ff8a66;margin-bottom:3px}

/* faq */
details{border-bottom:1px solid var(--line);padding:18px 0}
summary{cursor:pointer;font-weight:600;font-size:16px;list-style:none;display:flex;gap:14px}
summary::-webkit-details-marker{display:none}
summary::before{content:"+";color:var(--acc);font-weight:700}
details[open] summary::before{content:"–"}
details p{color:var(--mut);font-size:15px;margin:12px 0 0 28px}

.foot{border-top:1px solid var(--line);padding:30px 0;font-size:12.5px;color:var(--mut)}
.foot-in{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap}

@media(max-width:960px){
  .hero-grid,.price-card{grid-template-columns:1fr;gap:30px}
  .price-left{border-right:0;border-bottom:2px solid var(--ink);padding:30px}
  .price-right{padding:30px}
  .numbers,.how,.grid{grid-template-columns:repeat(2,1fr)}
  .how li,.how li+li{border-left:0;padding-left:0}
  .bar nav{display:none}
}
@media(max-width:560px){
  .numbers,.how,.grid{grid-template-columns:1fr}
}