:root{
  --window:#26282c; --panel:#1a202c; --panel2:#212836; --line:#4a5568; --line-soft:#2d3748;
  --text:#e2e8f0; --muted:#a0aec0; --teal:#319795; --teal-hi:#4fd1c5;
  --green:#276749; --green-hi:#2f855a; --console:#0d1117; --console-text:#39d353;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:72px}
body{margin:0;background:var(--window);color:var(--text);font:16px/1.6 "Segoe UI",system-ui,-apple-system,Roboto,Arial,sans-serif}
a{color:var(--teal-hi)}
img{max-width:100%;display:block}
.wrap{max-width:1100px;margin:0 auto;padding:0 20px}
:focus-visible{outline:2px solid var(--teal-hi);outline-offset:3px;border-radius:4px}

/* кнопки как в лаунчере */
.btn{display:inline-block;text-decoration:none;font-weight:700;letter-spacing:.01em;padding:14px 26px;border-radius:6px;border:1px solid transparent;font-size:16px;text-align:center;cursor:pointer;transition:background .15s,border-color .15s}
.btn-go{background:var(--green);color:#fff}
.btn-go:hover{background:var(--green-hi);color:#fff}
.btn-ghost{background:transparent;color:var(--text);border-color:var(--line)}
.btn-ghost:hover{border-color:var(--teal);color:#fff}
.btn-sm{padding:9px 18px;font-size:15px}

/* шапка */
header{position:sticky;top:0;z-index:10;background:var(--panel);border-bottom:1px solid var(--line-soft)}
.bar{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:60px}
.brand{display:flex;align-items:center;gap:12px;text-decoration:none;color:#fff;font-weight:700;font-size:18px;min-width:0}
.brand img{width:44px;height:44px;flex:none}
.brand span{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
nav{display:flex;align-items:center;gap:22px}
nav a.l{color:var(--muted);text-decoration:none;font-size:15px}
nav a.l:hover{color:#fff}

/* заголовок-«шапка программы» */
.hero{background:linear-gradient(180deg,#1a202c 0%,var(--window) 100%);padding:56px 0 64px}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:44px;align-items:center}
.tag{display:inline-block;color:var(--teal-hi);border:1px solid var(--line);padding:4px 12px;border-radius:999px;font-size:13.5px;margin-bottom:18px}
h1{margin:0 0 18px;font-size:clamp(30px,5vw,46px);line-height:1.15;color:#fff;letter-spacing:-.01em}
.lead{margin:0 0 28px;color:var(--muted);font-size:18px;max-width:540px}
.cta{display:flex;flex-wrap:wrap;gap:12px}
.shot{border:1px solid var(--line);border-radius:10px;overflow:hidden;background:var(--panel);box-shadow:0 18px 50px rgba(0,0,0,.45)}
.shot .titlebar{display:flex;align-items:center;gap:8px;padding:8px 12px;background:#14181f;border-bottom:1px solid var(--line-soft);color:var(--muted);font-size:12.5px}
.shot .titlebar i{width:9px;height:9px;border-radius:50%;background:#4a5568;display:block}
.log{background:var(--console);padding:18px 18px 20px;font:14.5px/1.85 ui-monospace,Consolas,Menlo,monospace;color:var(--console-text);min-height:230px}
.log span{color:#7d8590}
.log .cursor{color:var(--console-text);animation:blink 1.1s steps(1) infinite}
@keyframes blink{50%{opacity:0}}

/* секции */
section{padding:64px 0}
.alt{background:var(--panel)}
h2{margin:0 0 8px;font-size:clamp(24px,3.6vw,32px);color:#fff}
.sub{margin:0 0 32px;color:var(--muted);max-width:620px}

/* рамка-группа как «Параметры запуска» */
.group{position:relative;border:1px solid var(--line);border-radius:10px;padding:26px 22px 22px;background:var(--panel);margin-top:14px}
.group>.legend{position:absolute;top:-13px;left:16px;background:var(--panel);padding:0 10px;color:#fff;font-weight:700;font-size:15px}
.alt .group{background:var(--window)}
.alt .group>.legend{background:var(--window)}

/* вкладки */
.tabs{display:flex;flex-wrap:wrap;gap:2px;background:var(--panel);border:1px solid var(--line-soft);border-radius:8px 8px 0 0;padding:6px 6px 0}
.tab{appearance:none;background:none;border:0;color:var(--muted);font:600 15px/1 "Segoe UI",system-ui,sans-serif;padding:13px 18px;border-bottom:2px solid transparent;cursor:pointer}
.tab:hover{color:#fff}
.tab[aria-selected=true]{color:var(--teal-hi);border-bottom-color:var(--teal)}
.panels{border:1px solid var(--line-soft);border-top:0;border-radius:0 0 8px 8px;background:var(--panel);padding:26px 22px}
.js .panel{display:none}
.js .panel.on{display:block}
.panel h3{margin:0 0 8px;color:#fff;font-size:20px}
.panel p{margin:0;color:var(--muted);max-width:660px}
.panel + .panel{margin-top:26px;padding-top:26px;border-top:1px solid var(--line-soft)}
.js .panel + .panel{margin:0;padding:0;border:0}
.points{margin:16px 0 0;padding:0;list-style:none;display:grid;gap:10px}
.points li{padding-left:26px;position:relative;color:var(--text)}
.points li::before{content:"";position:absolute;left:3px;top:.5em;width:8px;height:8px;background:var(--teal);border-radius:2px}

/* флажки */
.flags{display:grid;grid-template-columns:repeat(3,1fr);gap:12px 28px;margin:0;padding:0;list-style:none}
.flags li{display:flex;align-items:center;gap:12px;font-size:15px;color:var(--text)}
.flags li::before{content:"";flex:none;width:18px;height:18px;border:1px solid var(--line);border-radius:4px;background:var(--panel) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath d='M3.5 8.5l3 3 6-7' fill='none' stroke='%234fd1c5' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") center/14px no-repeat}
.alt .flags li::before{background-color:var(--window)}
.notify{display:flex;flex-wrap:wrap;gap:12px 36px;margin:0;padding:0;list-style:none}
.notify li{display:flex;align-items:center;gap:12px}
.notify li::before{content:"";width:18px;height:18px;border:1px solid var(--line);border-radius:4px;background:var(--window) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath d='M3.5 8.5l3 3 6-7' fill='none' stroke='%234fd1c5' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") center/14px no-repeat}

/* шаги */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin:0;padding:0;list-style:none}
.step{background:var(--panel);border:1px solid var(--line-soft);border-radius:10px;padding:22px}
.step b.n{display:flex;align-items:center;justify-content:center;width:32px;height:32px;border-radius:50%;background:var(--teal);color:#fff;font-size:15px;margin-bottom:14px}
.step h3{margin:0 0 6px;font-size:18px;color:#fff}
.step p{margin:0;color:var(--muted);font-size:15.5px}
.console{margin-top:22px;background:var(--console);border:1px solid var(--line-soft);border-radius:8px;padding:16px 18px;font:14px/1.7 ui-monospace,Consolas,Menlo,monospace;color:var(--console-text);overflow-x:auto}
.console span{color:#7d8590}

/* тарифы */
.plans{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.plan{background:var(--panel);border:1px solid var(--line);border-radius:10px;padding:28px 24px;display:flex;flex-direction:column;position:relative}
.plan.best{border-color:var(--teal)}
.plan .badge{position:absolute;top:-12px;right:18px;background:var(--teal);color:#fff;font-size:12.5px;font-weight:700;padding:3px 12px;border-radius:999px}
.plan h3{margin:0;font-size:18px;color:var(--muted);font-weight:600}
.price{margin:6px 0 2px;font-size:42px;font-weight:700;color:#fff;line-height:1.1}
.price small{font-size:20px;color:var(--muted);font-weight:600}
.per{color:var(--muted);font-size:14.5px;margin-bottom:18px}
.plan ul{margin:0 0 24px;padding:0;list-style:none;display:grid;gap:8px;flex:1}
.plan li{padding-left:24px;position:relative;font-size:15.5px}
.plan li::before{content:"";position:absolute;left:2px;top:.55em;width:8px;height:8px;background:var(--teal);border-radius:2px}

/* вопросы */
.faq{max-width:780px}
details{border-bottom:1px solid var(--line-soft);padding:18px 0}
details:first-child{border-top:1px solid var(--line-soft)}
summary{cursor:pointer;list-style:none;display:flex;justify-content:space-between;align-items:center;gap:16px;font-weight:600;font-size:17px;color:#fff}
summary::-webkit-details-marker{display:none}
summary::after{content:"+";flex:none;color:var(--teal-hi);font-size:24px;line-height:1;transition:transform .2s}
details[open] summary::after{transform:rotate(45deg)}
details p{margin:12px 0 0;color:var(--muted)}
details code{background:var(--console);color:var(--console-text);padding:2px 7px;border-radius:5px;font:14px ui-monospace,Consolas,monospace}
.codeblock{margin:12px 0 0;background:var(--console);border:1px solid var(--line-soft);border-radius:8px;padding:12px 14px;overflow-x:auto}
.codeblock code{padding:0;white-space:nowrap}

.final{text-align:center}
.final p{margin:0 auto 24px;color:var(--muted);font-size:18px}
footer{border-top:1px solid var(--line-soft);background:var(--panel);padding:30px 0 40px;color:var(--muted);font-size:13.5px}
footer p{margin:0 0 8px;max-width:820px}

@media (max-width:900px){
  .plans{grid-template-columns:1fr;max-width:420px}
  .hero-grid{grid-template-columns:1fr;gap:34px}
  .flags{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:720px){
  nav a.l{display:none}
  .steps{grid-template-columns:1fr}
  .plans{grid-template-columns:1fr}
  .brand span{font-size:16px}
  .hero{padding:36px 0 44px}
  section{padding:48px 0}
  .tab{padding:12px 12px;font-size:14px}
}
@media (max-width:420px){
  .flags{grid-template-columns:1fr}
  .cta .btn,.plan .btn,.final .btn{width:100%}
  .bar{gap:10px}
  .bar .btn-sm{padding:8px 12px;font-size:14px}
  .brand span{display:none}
}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important}}

/* переключатель языка */
.lang{display:flex;gap:2px;border:1px solid var(--line);border-radius:6px;overflow:hidden}
.lang a{color:var(--muted);text-decoration:none;font-size:13.5px;font-weight:700;padding:5px 10px}
.lang a:hover{color:#fff}
.lang a[aria-current=true]{background:var(--teal);color:#fff}