:root{
  --paper:#fbfaff;--paper-2:#f3f0ff;--card:#fff;--ink:#100f1a;--muted:#5b5872;--line:#e5e1f5;
  --accent:#6a3cff;--accent-deep:#5226f0;--accent-soft:#eee8ff;--lime:#c9f23d;--lime-deep:#b3dc22;
  --dark:#100f1a;--dark-2:#1c1a2b;--radius:14px;--shadow:0 20px 50px rgba(64,40,160,.12);
  --display:"Rubik",system-ui,sans-serif;--body:"Heebo",system-ui,sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--body);background:var(--paper);color:var(--ink);font-size:17px;line-height:1.65;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:inherit}
.wrap{width:min(1160px,100% - 32px);margin-inline:auto}
h1,h2,h3{font-family:var(--display);line-height:1.1;letter-spacing:-.015em}
.kicker{display:inline-flex;align-items:center;gap:8px;font-weight:700;font-size:13.5px;color:var(--accent);background:var(--accent-soft);padding:6px 12px;border-radius:8px;letter-spacing:.02em}
.kicker::before{content:"";width:7px;height:7px;background:var(--lime);border:2px solid var(--ink);border-radius:2px}
.sec{padding:110px 0}
.sec-head{max-width:720px;margin-bottom:54px}
.sec-head h2{font-size:clamp(32px,4.6vw,54px);font-weight:800;margin:16px 0 16px}
.sec-head p{color:var(--muted);font-size:19px}
.hl{background:linear-gradient(transparent 58%,var(--lime) 58%,var(--lime) 92%,transparent 92%);padding:0 4px}
.skip{position:absolute;top:-120px;right:16px;left:auto}[dir=ltr] .skip{right:auto;left:16px}.skip:focus{top:16px;z-index:99;background:var(--ink);color:#fff;padding:10px 16px;border-radius:10px}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;font:700 16px/1 var(--body);padding:16px 24px;border-radius:12px;text-decoration:none;border:2px solid var(--ink);cursor:pointer;transition:transform .15s,box-shadow .15s,background .15s}
.btn:hover{transform:translate(2px,-2px);box-shadow:-4px 4px 0 var(--ink)}
.btn:focus-visible{outline:3px solid var(--accent);outline-offset:3px}
.btn-primary{background:var(--accent);border-color:var(--accent);color:#fff}
.btn-primary:hover{box-shadow:-4px 4px 0 var(--ink)}
.btn-ghost{color:var(--ink);background:var(--card)}
.btn-light{background:var(--ink);color:#fff}
.btn-lime{background:var(--lime);color:var(--ink)}
.btn svg{width:20px;height:20px;flex:none}

/* header */
.top{position:sticky;top:0;z-index:40;background:rgba(251,250,255,.88);backdrop-filter:blur(12px);border-bottom:1px solid transparent;transition:border-color .2s}
.top.scrolled{border-color:var(--line)}
.top .wrap{display:flex;align-items:center;justify-content:space-between;height:72px;gap:20px}
.logo{font:800 21px var(--display);text-decoration:none;display:flex;align-items:center;gap:10px;white-space:nowrap;direction:ltr}
.logo i{width:32px;height:32px;border-radius:8px;background:var(--lime);border:2px solid var(--ink);color:var(--ink);display:grid;place-items:center;font:800 17px var(--display);font-style:normal;transform:rotate(-6deg)}
.logo i b{color:var(--accent)}
.nav{display:flex;gap:26px;font-weight:500;font-size:16px}
.nav a{text-decoration:none;color:var(--muted)}
.nav a:hover{color:var(--accent)}
.top .btn{padding:11px 18px;font-size:15px;white-space:nowrap}
@media (max-width:860px){.nav{display:none}}
@media (max-width:420px){.logo{font-size:18px}.top .btn{padding:10px 13px;font-size:14px}}

/* hero */
.hero{padding:70px 0 100px;overflow:hidden;position:relative;background-image:radial-gradient(rgba(106,60,255,.16) 1.2px,transparent 1.2px);background-size:22px 22px}
.hero::before{content:"";position:absolute;width:520px;height:520px;left:-120px;top:-80px;border-radius:50%;background:radial-gradient(circle,rgba(201,242,61,.45),transparent 65%);pointer-events:none}
.hero::after{content:"";position:absolute;width:560px;height:560px;right:-160px;bottom:-240px;border-radius:50%;background:radial-gradient(circle,rgba(106,60,255,.18),transparent 65%);pointer-events:none}
.hero .wrap{position:relative;z-index:1;display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.05fr);gap:56px;align-items:center}
.hero h1{font-size:clamp(42px,6.4vw,78px);font-weight:800;margin:20px 0 22px}
.hero h1 em{font-style:normal;background:linear-gradient(transparent 55%,var(--lime) 55%,var(--lime) 90%,transparent 90%);padding:0 6px}
.hero .lead{font-size:clamp(18px,2vw,21px);color:var(--muted);max-width:540px;margin-bottom:34px}
.hero-cta{display:flex;gap:12px;flex-wrap:wrap}
.chips{display:flex;flex-wrap:wrap;gap:8px;margin-top:34px}
.chips span{font-size:14px;font-weight:500;padding:6px 12px;border:1.5px solid var(--ink);border-radius:8px;background:var(--card)}
.chips span:nth-child(3n+1){background:var(--accent-soft)}
.chips span:nth-child(3n+2){background:#f4fbd9}
.stage{position:relative;padding:0 0 40px 40px}
.browser{background:var(--card);border-radius:12px;box-shadow:-10px 10px 0 var(--ink);overflow:hidden;border:2px solid var(--ink)}
.browser .bar{height:34px;display:flex;align-items:center;gap:6px;padding:0 14px;background:var(--paper-2);border-bottom:2px solid var(--ink);direction:ltr}
.browser .bar i{width:10px;height:10px;border-radius:50%;border:1.5px solid var(--ink);background:#fff}
.browser .bar i:first-child{background:var(--lime)}
.browser .bar span{margin-left:12px;font-size:12px;color:var(--muted);background:#fff;padding:2px 12px;border-radius:6px;border:1px solid var(--line)}
.phone{position:absolute;left:0;bottom:0;width:30%;border-radius:24px;padding:7px;background:var(--ink);box-shadow:0 24px 50px rgba(16,15,26,.3)}
.phone img{border-radius:18px}
/* amethyst shop mockup (sizes scale with the frame via container units) */
.shop{position:relative;aspect-ratio:27/20;background:#2a1450 url(/img/amethyst.jpg) center 40%/cover;color:#fff;container-type:inline-size;overflow:hidden}
.shop::before{content:"";position:absolute;inset:0;background:linear-gradient(270deg,rgba(20,8,40,.84) 0%,rgba(20,8,40,.45) 55%,rgba(20,8,40,.05) 100%)}
.shop-nav{position:relative;display:flex;align-items:center;justify-content:space-between;padding:2.6cqw 3.7cqw}
.shop-brand{display:flex;align-items:center;gap:1.5cqw;font:800 3cqw var(--display)}
.shop-brand i{width:4.4cqw;height:4.4cqw;border-radius:1.1cqw;background:var(--lime);border:.4cqw solid var(--ink);display:grid;place-items:center;font-size:2.2cqw;font-style:normal}
.shop-links{display:flex;gap:1.9cqw}
.shop-links b{width:7cqw;height:1.1cqw;border-radius:1cqw;background:rgba(255,255,255,.55)}
.shop-pill{font:700 2.3cqw var(--body);background:var(--lime);color:var(--ink);padding:1cqw 1.9cqw;border-radius:1.5cqw}
.shop-hero{position:relative;padding:4.4cqw 4.8cqw 0;width:60%}
.shop-hero small{display:inline-block;font:700 2.3cqw var(--body);background:var(--lime);color:var(--ink);padding:.6cqw 1.7cqw;border-radius:1.1cqw;margin-bottom:2cqw}
.shop-hero h2{font:800 7cqw/1.08 var(--display);text-shadow:0 2px 18px rgba(0,0,0,.4)}
.shop-hero p{font:500 2.6cqw/1.5 var(--body);opacity:.9;margin:1.9cqw 0}
.shop-price{font:800 5.6cqw/1 var(--display);color:var(--lime);margin-bottom:2.6cqw}
.shop-price s{font:500 3.1cqw var(--body);color:rgba(255,255,255,.6);margin-inline-start:1.5cqw}
.shop-btns{display:flex;gap:1.5cqw}
.shop-btns span{font:700 2.4cqw var(--body);padding:1.5cqw 2.6cqw;border-radius:1.7cqw;border:.4cqw solid #fff;white-space:nowrap}
.shop-btns span:first-child{background:var(--lime);color:var(--ink);border-color:var(--ink)}
.shop-screen{position:relative;aspect-ratio:146/300;border-radius:18px;overflow:hidden;background:#2a1450 url(/img/amethyst.jpg) 30% center/cover;color:#fff;container-type:inline-size}
.shop-screen::before{content:"";position:absolute;inset:0;background:linear-gradient(0deg,rgba(20,8,40,.88) 0%,rgba(20,8,40,.1) 60%)}
.shop-screen .stars{position:absolute;top:8cqw;right:8cqw;font-size:8cqw;color:#ffd84a;background:rgba(20,8,40,.6);padding:1cqw 4cqw;border-radius:4cqw;letter-spacing:.5cqw}
.shop-screen .t{position:absolute;right:8cqw;left:8cqw;bottom:10cqw;font:800 12cqw/1.15 var(--display)}
.shop-screen .t b{display:block;font:800 15cqw var(--display);color:var(--lime);margin-top:2cqw}
.shop-screen .t span{display:block;white-space:nowrap;margin-top:6cqw;font:700 7cqw var(--body);background:#25d366;border-radius:5cqw;padding:3.5cqw 2cqw;text-align:center}
.float-tag{position:absolute;top:-20px;right:-8px;z-index:2;background:var(--lime);color:var(--ink);border:2px solid var(--ink);font-weight:700;font-size:14px;padding:9px 14px;border-radius:10px;transform:rotate(-3deg)}
.float-tag b{color:var(--accent)}
@media (max-width:920px){.hero .wrap{grid-template-columns:minmax(0,1fr)}.stage{max-width:620px;margin-inline:auto;width:100%}}

/* case study */
.case{background:var(--paper-2);border-block:2px solid var(--ink)}
.case-grid{display:grid;grid-template-columns:minmax(0,1.25fr) minmax(0,1fr) minmax(0,1fr);gap:22px}
.case-card{background:var(--card);border:2px solid var(--ink);border-radius:var(--radius);overflow:hidden;display:flex;flex-direction:column;transition:transform .2s,box-shadow .2s}
.case-card:hover{transform:translate(3px,-3px);box-shadow:-6px 6px 0 var(--accent)}
.case-card .shot{background:#0e0f16;aspect-ratio:4/3;overflow:hidden;position:relative;border-bottom:2px solid var(--ink)}
.case-card .shot img{width:100%;height:100%;object-fit:cover;object-position:top}
.case-card .body{padding:22px 22px 24px;display:flex;flex-direction:column;gap:12px;flex:1}
.case-card h3{font-size:22px;display:flex;align-items:center;gap:10px}
.case-card h3 .dot{width:12px;height:12px;border-radius:3px}
.case-card ul{list-style:none;display:grid;gap:7px;color:var(--muted);font-size:15.5px}
.case-card li{display:flex;gap:9px}
.case-card li::before{content:"✓";color:var(--accent);font-weight:700}
.case-card .more{margin-top:auto;padding-top:8px;font-weight:700;color:var(--accent);text-decoration:none;font-size:15px}
.case-card .more:hover{text-decoration:underline}
/* facebook mock */
.fb{background:#fff;height:100%;display:flex;flex-direction:column}
.fb .cover{aspect-ratio:1640/624;object-fit:cover;width:100%;height:auto}
.fb .who{display:flex;align-items:flex-end;gap:12px;padding:0 16px;margin-top:-34px}
.fb .who img{width:78px;height:78px;border-radius:50%;border:4px solid #fff;object-fit:cover}
.fb .who div{padding-bottom:6px;color:#1c1e21}
.fb .who b{display:block;font:700 17px var(--display)}
.fb .who small{color:#65676b;font-size:12.5px}
.fb .actions{display:flex;gap:8px;padding:14px 16px}
.fb .actions span{flex:1;text-align:center;font-size:12.5px;font-weight:700;padding:7px;border-radius:7px;background:#e4e6eb;color:#1c1e21}
.fb .actions span:first-child{background:#1877f2;color:#fff}
.track{margin-top:26px;display:grid;grid-template-columns:.8fr 2fr;gap:34px;background:var(--ink);color:#fff;border-radius:var(--radius);padding:34px 32px}
.track .kicker{background:rgba(201,242,61,.14);color:var(--lime)}
.track-head h3{font-size:28px;margin:12px 0 10px}
.track-head p{color:rgba(255,255,255,.7);font-size:15.5px}
.track-items{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}
.track-items>div{border-inline-start:3px solid var(--lime);padding-inline-start:18px}
.track-items b{display:block;font:700 17px var(--display);margin-bottom:8px}
.track-items p{color:rgba(255,255,255,.72);font-size:14.5px}
.track-items code{font-family:ui-monospace,Consolas,monospace;font-size:13px;background:rgba(201,242,61,.16);padding:1px 6px;border-radius:5px;color:var(--lime)}
.bubble{background:#dcf8c6;color:#111b21;font-size:14px;line-height:1.5;padding:9px 12px;border-radius:12px 12px 12px 3px;margin:0 0 10px;box-shadow:0 1px 1px rgba(0,0,0,.2)}
@media (max-width:980px){.track{grid-template-columns:1fr}}
@media (max-width:700px){.track{padding:26px 20px}.track-items{grid-template-columns:1fr}}
@media (max-width:980px){.case-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.case-card:first-child{grid-column:1/-1}}
@media (max-width:640px){.case-grid{grid-template-columns:minmax(0,1fr)}}

/* pricing */
.toggle{display:inline-flex;background:var(--card);border:2px solid var(--ink);border-radius:12px;padding:4px;margin-bottom:34px;gap:4px}
.toggle button{font:700 15px var(--body);border:0;background:transparent;padding:10px 18px;border-radius:8px;cursor:pointer;color:var(--muted)}
.toggle button[aria-pressed="true"]{background:var(--accent);color:#fff}
.toggle button:focus-visible{outline:3px solid var(--accent);outline-offset:2px}
.toggle-note{font-size:15px;color:var(--muted);margin:-20px 0 34px;min-height:24px}
.plans{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px;align-items:stretch}
.plan{background:var(--card);border:2px solid var(--line);border-radius:var(--radius);padding:32px 28px;display:flex;flex-direction:column;position:relative;transition:border-color .2s}
.plan:hover{border-color:var(--ink)}
.plan h3{font-size:24px;margin-bottom:6px}
.plan .for{color:var(--muted);font-size:15.5px;min-height:50px}
.price{display:flex;align-items:baseline;gap:8px;flex-wrap:wrap;margin:22px 0 4px}
.price b{font:800 46px/1 var(--display);letter-spacing:-.02em}
.price span{color:var(--muted);font-size:15px;font-weight:500}
.price-sub{font-size:14px;color:var(--muted);min-height:22px}
.plan ul{list-style:none;display:grid;gap:10px;margin:24px 0 30px;font-size:15.5px}
.plan li{display:flex;gap:10px;align-items:flex-start}
.plan li::before{content:"";flex:none;width:18px;height:18px;margin-top:4px;border-radius:5px;background:var(--accent-soft) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%236a3cff' stroke-width='3.2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M5 12.5l4.5 4.5L19 7.5'/%3E%3C/svg%3E") center/12px no-repeat}
.plan li.plus{font-weight:700}
.plan li.plus::before{background-color:var(--ink);background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23c9f23d' stroke-width='3.2' stroke-linecap='round'%3E%3Cpath d='M12 5v14M5 12h14'/%3E%3C/svg%3E")}
.plan .btn{margin-top:auto;width:100%}
.plan.featured{background:var(--accent);color:#fff;border:2px solid var(--ink);box-shadow:-8px 8px 0 var(--ink)}
.plan.featured .for,.plan.featured .price span,.plan.featured .price-sub{color:rgba(255,255,255,.8)}
.plan.featured li::before{background-color:rgba(255,255,255,.18);background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23c9f23d' stroke-width='3.2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M5 12.5l4.5 4.5L19 7.5'/%3E%3C/svg%3E")}
.plan.featured li.plus::before{background-color:var(--ink)}
.plan.featured .btn-primary{background:var(--lime);border-color:var(--ink);color:var(--ink)}
.badge{position:absolute;top:-15px;right:24px;background:var(--lime);color:var(--ink);border:2px solid var(--ink);font-weight:700;font-size:13.5px;padding:4px 12px;border-radius:8px;transform:rotate(-2deg)}
.fine{margin-top:30px;font-size:14.5px;color:var(--muted)}
@media (max-width:980px){.plans{grid-template-columns:minmax(0,1fr);max-width:560px}.plan .for{min-height:0}}

.alt{background:var(--paper-2);border-block:2px solid var(--ink)}
.ads-box{margin-top:40px;display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:22px}
.promise{background:var(--card);border:2px solid var(--ink);border-radius:var(--radius);padding:30px 28px}
.promise h3{font-size:22px;margin-bottom:14px}
.promise ul{list-style:none;display:grid;gap:12px;font-size:15.5px}
.promise li{display:grid;grid-template-columns:28px 1fr;gap:8px}
.promise li span{font-size:18px;line-height:1.4}
/* calculator */
.calc{background:var(--ink);color:#fff;border-radius:var(--radius);padding:30px 28px}
.calc h3{font-size:22px;margin-bottom:6px}
.calc>p{color:rgba(255,255,255,.65);font-size:15px;margin-bottom:22px}
.field{margin-bottom:18px}
.field label{display:flex;justify-content:space-between;font-weight:500;font-size:15px;margin-bottom:8px}
.field label output{font-weight:700;color:var(--lime);direction:ltr}
.field select{width:100%;font:500 16px var(--body);padding:12px 14px;border-radius:10px;border:1px solid rgba(255,255,255,.2);background:var(--dark-2);color:#fff}
input[type=range]{width:100%;accent-color:var(--lime);height:28px}
.result{margin-top:8px;padding:18px 20px;border-radius:12px;background:var(--lime);color:var(--ink)}
.result strong{font:800 34px/1.1 var(--display);display:block;margin-bottom:4px}
.result p{font-size:15px;color:var(--ink)}
@media (max-width:900px){.ads-box{grid-template-columns:minmax(0,1fr)}}

/* steps */
.steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px;counter-reset:s}
.step{background:var(--card);border:2px solid var(--ink);border-radius:var(--radius);padding:26px 24px;counter-increment:s}
.step::before{content:"0" counter(s);display:block;font:800 40px/1 var(--display);color:var(--accent);margin-bottom:14px;letter-spacing:-.03em}
.step h3{font-size:19px;margin-bottom:8px}
.step p{color:var(--muted);font-size:15.5px}
@media (max-width:900px){.steps{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:540px){.steps{grid-template-columns:minmax(0,1fr)}}

/* faq */
.faq{max-width:820px;display:grid;gap:12px}
.faq details{background:var(--card);border:2px solid var(--line);border-radius:12px;padding:0 22px}
.faq details[open]{border-color:var(--ink)}
.faq summary{list-style:none;cursor:pointer;font:700 18px var(--display);padding:19px 0;display:flex;justify-content:space-between;gap:16px;align-items:center}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";flex:none;width:30px;height:30px;display:grid;place-items:center;border-radius:8px;background:var(--accent-soft);font-size:22px;font-weight:500;color:var(--accent);transition:transform .2s}
.faq details[open] summary::after{transform:rotate(45deg);background:var(--lime);color:var(--ink)}
.faq details p{padding:0 0 22px;color:var(--muted)}

/* final cta */
.final{background:var(--lime);color:var(--ink);text-align:center;padding:100px 0;border-top:2px solid var(--ink)}
.final h2{font-size:clamp(34px,5.4vw,62px);font-weight:800;margin-bottom:16px}
.final p{font-size:19px;max-width:600px;margin:0 auto 32px}
.final-cta{display:flex;gap:12px;justify-content:center;flex-wrap:wrap}
.final .btn{font-size:18px;padding:18px 28px}
.final .btn-ghost{background:transparent}
.final .btn-ghost span{direction:ltr;unicode-bidi:isolate}
footer{background:var(--ink);color:rgba(255,255,255,.6);padding:34px 0;font-size:14.5px}
footer .wrap{display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px}
footer a[href^="tel"]{color:var(--lime);text-decoration:none;direction:ltr;unicode-bidi:isolate}

/* reveal: only below the fold, and only when JS runs */
html.js .reveal{opacity:0;transform:translateY(26px);transition:opacity .7s ease,transform .7s ease}
html.js .reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important}html.js .reveal{opacity:1;transform:none}}

/* language switcher */
.top-actions{display:flex;align-items:center;gap:10px}
.langs{display:flex;gap:2px}
.langs a{font:700 13px var(--body);text-decoration:none;padding:7px 8px;border-radius:8px;color:var(--muted);letter-spacing:.03em}
.langs a:hover{background:var(--accent-soft);color:var(--accent)}
@media (max-width:420px){.top .btn .lbl{display:none}.top .btn{padding:10px 12px}.langs a{padding:6px 5px}}

/* left-to-right pages (English, Russian) */
[dir=ltr] .stage{padding:0 40px 40px 0}
[dir=ltr] .phone{left:auto;right:0}
[dir=ltr] .float-tag{right:auto;left:-8px;transform:rotate(3deg)}
[dir=ltr] .browser{box-shadow:10px 10px 0 var(--ink)}
[dir=ltr] .shop::before{background:linear-gradient(90deg,rgba(20,8,40,.84) 0%,rgba(20,8,40,.45) 55%,rgba(20,8,40,.05) 100%)}
[dir=ltr] .shop-screen .stars{right:auto;left:8cqw}
[dir=ltr] .badge{right:auto;left:24px;transform:rotate(2deg)}
[dir=ltr] .btn:hover,[dir=ltr] .btn-primary:hover{transform:translate(-2px,-2px);box-shadow:4px 4px 0 var(--ink)}
[dir=ltr] .case-card:hover{transform:translate(-3px,-3px);box-shadow:6px 6px 0 var(--accent)}
[dir=ltr] .plan.featured{box-shadow:8px 8px 0 var(--ink)}
[lang=ru]{--body:"Rubik",system-ui,sans-serif}
[lang=ru] .hero h1{font-size:clamp(36px,5vw,62px)}
[lang=ru] .sec-head h2{font-size:clamp(30px,4vw,46px)}