/* ════════════════════════════════════════════════════════════════
   Leadlar AI — site.css
   Общий стиль внутренних страниц. Дизайн-система главной:
   «риштанская керамика» — кобальт / бирюза / шафран / терракота
   на угольном фоне. Unbounded — заголовки, Manrope — текст,
   JetBrains Mono — служебные подписи.
   Иконки только inline SVG (lucide-стиль), эмодзи не используются.
   ════════════════════════════════════════════════════════════════ */

:root{
  --void:#080A0F; --deep:#0C1017; --panel:#111722; --panel2:#151C29;
  --line:rgba(255,255,255,.07); --line2:rgba(255,255,255,.13);
  --ink:#E9EFF7; --dim:rgba(233,239,247,.60); --faint:rgba(233,239,247,.36);
  --kobalt:#3B6FF0; --turq:#2FBFB8; --saffron:#F0A63A; --terra:#E4613A; --mint:#41CE9A;
  --r:16px; --r-lg:22px;
  --ease:cubic-bezier(.16,1,.3,1);
  --maxw:1180px;
  --read:760px;
  --disp:"Unbounded",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  --body:"Manrope",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;
  --mono:"JetBrains Mono",ui-monospace,SFMono-Regular,Menlo,monospace;
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;scroll-padding-top:86px;-webkit-text-size-adjust:100%}
body{
  background:var(--void);color:var(--ink);font-family:var(--body);
  font-size:17px;line-height:1.7;-webkit-font-smoothing:antialiased;
  overflow-x:hidden;min-height:100vh;
}
::selection{background:rgba(59,111,240,.4)}
a{color:inherit;text-decoration:none}
img{max-width:100%;height:auto}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 22px}
.mono{font-family:var(--mono)}
h1,h2,h3,h4{font-family:var(--disp);font-weight:600;letter-spacing:-.03em;line-height:1.14;text-wrap:balance}
.grad{background:linear-gradient(96deg,#5fe6dd,#7fa4ff 42%,#ffc061 78%,#ffd9a0);-webkit-background-clip:text;background-clip:text;color:transparent}
.eyebrow{display:inline-flex;align-items:center;gap:9px;font-family:var(--mono);font-size:11.5px;letter-spacing:.14em;text-transform:uppercase;color:var(--turq);font-weight:500}
.eyebrow::before{content:"";width:22px;height:1px;background:linear-gradient(90deg,transparent,var(--turq))}
.vh{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}

/* ── ambient ── */
.bgfx{position:fixed;inset:0;z-index:0;pointer-events:none;overflow:hidden}
.bgfx i{position:absolute;border-radius:50%;filter:blur(100px);display:block}
.bgfx .g1{width:540px;height:540px;background:radial-gradient(circle,rgba(59,111,240,.22),transparent 70%);top:-200px;left:-160px}
.bgfx .g2{width:560px;height:560px;background:radial-gradient(circle,rgba(47,191,184,.13),transparent 70%);top:36%;right:-260px}
.bgfx .g3{width:480px;height:480px;background:radial-gradient(circle,rgba(240,166,58,.09),transparent 70%);bottom:-180px;left:22%}
.bgfx .spec{position:absolute;inset:0;background-image:repeating-linear-gradient(90deg,rgba(255,255,255,.04) 0 1px,transparent 1px 14px);
  mask-image:radial-gradient(ellipse 90% 45% at 50% 0%,#000 10%,transparent 70%);
  -webkit-mask-image:radial-gradient(ellipse 90% 45% at 50% 0%,#000 10%,transparent 70%)}

/* ── skip link ── */
.skip{position:absolute;left:-9999px;top:0;z-index:200;background:var(--panel2);color:var(--ink);
  border:1px solid var(--line2);border-radius:10px;padding:10px 16px;font-size:14px;font-weight:600}
.skip:focus{left:14px;top:12px}

/* ════ header ════ */
header{position:sticky;top:0;z-index:50;backdrop-filter:blur(18px) saturate(150%);-webkit-backdrop-filter:blur(18px) saturate(150%);
  background:rgba(8,10,15,.72);border-bottom:1px solid transparent;transition:background .3s,border-color .3s}
header.scrolled{background:rgba(8,10,15,.92);border-bottom-color:var(--line)}
.nav{display:flex;align-items:center;gap:20px;height:68px}
.brand{display:flex;align-items:center;gap:11px;font-family:var(--disp);font-weight:600;font-size:16.5px;letter-spacing:-.03em;flex:none}
.brand span{white-space:nowrap}
.mark{width:34px;height:34px;border-radius:11px;background:linear-gradient(140deg,rgba(59,111,240,.28),rgba(47,191,184,.12));
  border:1px solid var(--line2);display:grid;place-items:center;box-shadow:0 0 24px rgba(59,111,240,.24);flex:none}
.mark svg{width:19px;height:19px}
.brand .ai{color:var(--turq)}

.navlinks{display:flex;gap:20px;margin-left:10px;min-width:0}
.navlinks a{font-size:14px;font-weight:500;color:var(--dim);transition:color .2s;position:relative;white-space:nowrap}
.navlinks a::after{content:"";position:absolute;left:0;right:100%;bottom:-6px;height:1px;background:var(--turq);transition:right .3s var(--ease)}
.navlinks a:hover,.navlinks a:focus-visible{color:var(--ink)}
.navlinks a:hover::after,.navlinks a:focus-visible::after{right:0}
.navlinks a[aria-current="page"]{color:var(--ink)}
.navlinks a[aria-current="page"]::after{right:0;background:var(--kobalt)}

.navright{margin-left:auto;display:flex;align-items:center;gap:10px;flex:none}
.lang{display:flex;border:1px solid var(--line);border-radius:10px;overflow:hidden}
.lang a{font-family:var(--mono);font-size:11.5px;font-weight:500;padding:7px 10px;color:var(--faint);transition:.2s;letter-spacing:.05em}
.lang a:hover{color:var(--ink);background:rgba(255,255,255,.05)}
.lang a.on{background:rgba(59,111,240,.2);color:var(--ink)}
.lang a:focus-visible{outline:2px solid var(--turq);outline-offset:-2px}

.btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;font-family:var(--body);font-weight:600;font-size:14.5px;
  border-radius:12px;padding:11px 18px;cursor:pointer;border:1px solid transparent;white-space:nowrap;
  transition:transform .2s var(--ease),box-shadow .25s,background .2s,border-color .2s}
.btn svg{width:16px;height:16px;flex:none}
.btn:focus-visible{outline:2px solid var(--turq);outline-offset:3px}
.btn-primary{color:#07131b;background:linear-gradient(135deg,#4de0d6,#3B6FF0 130%);box-shadow:0 8px 30px rgba(47,191,184,.28)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 14px 40px rgba(47,191,184,.42)}
.btn-ghost{color:var(--ink);border-color:var(--line2);background:rgba(255,255,255,.03)}
.btn-ghost:hover{background:rgba(255,255,255,.08);border-color:rgba(255,255,255,.24);transform:translateY(-1px)}
.btn[disabled]{opacity:.6;cursor:default;transform:none}

/* burger */
.burger{display:none;width:40px;height:40px;border-radius:11px;border:1px solid var(--line2);background:rgba(255,255,255,.03);
  color:var(--ink);place-items:center;cursor:pointer;transition:.2s}
.burger:hover{background:rgba(255,255,255,.08)}
.burger:focus-visible{outline:2px solid var(--turq);outline-offset:2px}
.burger svg{width:19px;height:19px}
.burger .ic-x{display:none}
.burger[aria-expanded="true"] .ic-m{display:none}
.burger[aria-expanded="true"] .ic-x{display:block}

/* mobile menu */
.mobmenu{display:none;position:sticky;top:68px;z-index:49;background:rgba(10,13,20,.97);
  backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);border-bottom:1px solid var(--line)}
.mobmenu.open{display:block}
.mobmenu ul{list-style:none;padding:8px 22px 16px;max-width:var(--maxw);margin:0 auto}
.mobmenu li{border-bottom:1px solid var(--line)}
.mobmenu li:last-child{border-bottom:0}
.mobmenu a{display:block;padding:13px 2px;font-size:15.5px;font-weight:500;color:var(--dim);transition:color .2s}
.mobmenu a:hover,.mobmenu a[aria-current="page"]{color:var(--ink)}

/* ── breadcrumbs ── */
.crumbs{padding-top:22px;padding-bottom:4px;position:relative;z-index:1}
.crumbs ol{list-style:none;display:flex;flex-wrap:wrap;align-items:center;gap:8px;overflow-wrap:anywhere;
  font-family:var(--mono);font-size:11.5px;letter-spacing:.06em;color:var(--faint);max-width:var(--read)}
.crumbs li{display:flex;align-items:center;gap:8px}
.crumbs li+li::before{content:"›";color:var(--line2);font-size:13px}
.crumbs a{color:var(--dim);transition:color .2s}
.crumbs a:hover{color:var(--turq)}
.crumbs [aria-current="page"]{color:var(--faint)}

/* ════ article ════ */
main{position:relative;z-index:1;display:block}
.doc{max-width:var(--read);margin:0 auto;padding:26px 0 40px;overflow-wrap:break-word}
.doc h1{font-size:clamp(28px,5vw,44px);margin:0 0 18px}
.doc .lede{font-size:19px;line-height:1.6;color:var(--dim);margin:0 0 34px;max-width:64ch}
.doc h2{font-size:clamp(22px,3.2vw,30px);margin:52px 0 16px;scroll-margin-top:90px}
.doc h3{font-size:clamp(18px,2.4vw,21px);margin:34px 0 12px;letter-spacing:-.02em}
.doc p{margin:0 0 18px;color:rgba(233,239,247,.84)}
.doc strong,.doc b{color:var(--ink);font-weight:700}
.doc ul,.doc ol{margin:0 0 20px;padding-left:22px;color:rgba(233,239,247,.84)}
.doc li{margin-bottom:9px}
.doc li::marker{color:var(--turq)}
.doc ol li::marker{color:var(--saffron);font-family:var(--mono);font-size:14px}
.doc a{color:var(--turq);text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1px;
  text-decoration-color:rgba(47,191,184,.42);transition:color .2s,text-decoration-color .2s}
.doc a:hover{color:#5fe6dd;text-decoration-color:#5fe6dd}
.doc hr{border:0;border-top:1px solid var(--line);margin:40px 0}

.doc blockquote{margin:26px 0;padding:18px 22px;border-left:2px solid var(--turq);border-radius:0 var(--r) var(--r) 0;
  background:linear-gradient(100deg,rgba(47,191,184,.08),rgba(47,191,184,0));color:var(--ink);font-size:17px;line-height:1.62}
.doc blockquote p:last-child{margin-bottom:0}

.doc .note{margin:26px 0;padding:18px 20px 18px 50px;position:relative;border:1px solid var(--line2);border-radius:var(--r);
  background:rgba(240,166,58,.06);color:rgba(233,239,247,.86);font-size:15.5px;line-height:1.62}
.doc .note::before{content:"";position:absolute;left:19px;top:19px;width:18px;height:18px;
  background:var(--saffron);
  -webkit-mask:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'><circle cx='12' cy='12' r='10'/><path d='M12 16v-4M12 8h.01'/></svg>") center/contain no-repeat;
  mask:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'><circle cx='12' cy='12' r='10'/><path d='M12 16v-4M12 8h.01'/></svg>") center/contain no-repeat}
.doc .note p:last-child{margin-bottom:0}

/* two-column cards */
.doc .grid2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;margin:26px 0}
.doc .card{border:1px solid var(--line);border-radius:var(--r);padding:20px 20px 18px;
  background:linear-gradient(165deg,var(--panel),rgba(12,16,23,.7));transition:border-color .25s,transform .25s var(--ease)}
.doc .card:hover{border-color:var(--line2);transform:translateY(-2px)}
.doc .card h3{margin:0 0 8px;font-size:17px}
.doc .card p{margin:0;font-size:15px;color:var(--dim);line-height:1.6}
.doc .card p+p{margin-top:10px}

/* numbered steps */
.doc ol.steps{list-style:none;padding:0;margin:26px 0;counter-reset:st}
.doc ol.steps>li{counter-increment:st;position:relative;padding:0 0 18px 50px;margin:0;border-left:1px solid var(--line);margin-left:15px}
.doc ol.steps>li:last-child{border-left-color:transparent;padding-bottom:0}
.doc ol.steps>li::before{content:counter(st,decimal-leading-zero);position:absolute;left:-15px;top:-2px;width:30px;height:30px;
  border-radius:9px;border:1px solid var(--line2);background:var(--panel2);color:var(--turq);
  font-family:var(--mono);font-size:11.5px;font-weight:600;display:grid;place-items:center}
.doc ol.steps>li strong{display:block;margin-bottom:4px}

/* tables */
.tablewrap{margin:26px 0;overflow-x:auto;-webkit-overflow-scrolling:touch;border:1px solid var(--line);border-radius:var(--r);
  background:linear-gradient(165deg,var(--panel),rgba(12,16,23,.6))}
.tablewrap table{border-collapse:collapse;width:100%;min-width:520px;font-size:15px}
.tablewrap th,.tablewrap td{padding:12px 16px;text-align:left;border-bottom:1px solid var(--line);vertical-align:top;line-height:1.55}
.tablewrap thead th{font-family:var(--mono);font-size:11px;letter-spacing:.1em;text-transform:uppercase;
  color:var(--faint);font-weight:500;background:rgba(255,255,255,.025);white-space:nowrap}
.tablewrap tbody tr:last-child td{border-bottom:0}
.tablewrap tbody tr:hover td{background:rgba(255,255,255,.02)}
.tablewrap td strong{color:var(--ink)}
.tablewrap::-webkit-scrollbar{height:8px}
.tablewrap::-webkit-scrollbar-thumb{background:var(--line2);border-radius:4px}

/* ── FAQ ── */
.faqsec{max-width:var(--read);margin:56px auto 0}
.faqsec h2{font-size:clamp(22px,3.2vw,30px);margin:0 0 18px}
.faq{border-top:1px solid var(--line)}
.faq details{border-bottom:1px solid var(--line)}
.faq summary{list-style:none;cursor:pointer;padding:18px 40px 18px 0;position:relative;font-size:16.5px;font-weight:600;color:var(--ink);line-height:1.4}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"";position:absolute;right:8px;top:24px;width:9px;height:9px;
  border-right:1.6px solid var(--turq);border-bottom:1.6px solid var(--turq);transform:rotate(45deg);transition:transform .25s}
.faq details[open] summary::after{transform:rotate(-135deg);top:28px}
.faq summary:hover{color:#fff}
.faq summary:focus-visible{outline:2px solid var(--turq);outline-offset:3px;border-radius:6px}
.faq .a{padding:0 40px 18px 0;color:var(--dim);font-size:15.5px;line-height:1.65}
.faq .a b,.faq .a strong{color:var(--ink)}
.faq .a a{color:var(--turq)}

/* ════ CTA ════ */
.ctaband{max-width:var(--read);margin:34px auto;border:1px solid var(--line2);border-radius:var(--r-lg);
  padding:22px 24px;display:flex;align-items:center;gap:18px;flex-wrap:wrap;
  background:linear-gradient(120deg,rgba(59,111,240,.14),rgba(47,191,184,.07) 60%,transparent)}
.ctaband p{margin:0;flex:1 1 260px;font-size:15.5px;color:var(--dim);line-height:1.55}
.ctaband .btns{display:flex;gap:10px;flex-wrap:wrap}

.cta{max-width:var(--read);margin:56px auto 0;border:1px solid var(--line2);border-radius:var(--r-lg);
  padding:34px 30px;background:linear-gradient(168deg,var(--panel2),var(--deep));
  box-shadow:0 40px 90px -50px rgba(0,0,0,.9);scroll-margin-top:90px}
.cta h2{font-size:clamp(22px,3.4vw,30px);margin:0 0 10px}
.cta>p{color:var(--dim);font-size:16px;margin:0 0 22px;line-height:1.6}
.cta .btns{display:flex;gap:11px;flex-wrap:wrap;margin-bottom:26px}
.cta .btns .btn{flex:1 1 200px}

.leadform{border-top:1px solid var(--line);padding-top:22px}
.frow{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
.fld{margin-bottom:14px}
.fld label{display:block}
.fld label>span{display:block;font-family:var(--mono);font-size:10.5px;letter-spacing:.11em;text-transform:uppercase;color:var(--faint);margin-bottom:7px}
.fld input,.fld textarea{width:100%;font:inherit;font-size:15px;color:var(--ink);background:rgba(255,255,255,.04);
  border:1px solid var(--line2);border-radius:11px;padding:12px 14px;transition:border-color .2s,background .2s}
.fld textarea{resize:vertical;min-height:74px;line-height:1.5}
.fld input:focus,.fld textarea:focus{outline:none;border-color:var(--turq);background:rgba(47,191,184,.06)}
.fld input::placeholder,.fld textarea::placeholder{color:rgba(233,239,247,.28)}
.fld.bad input,.fld.bad textarea{border-color:var(--terra)}
.hp{position:absolute;left:-9999px;width:1px;height:1px;opacity:0}
.leadform .btn-primary{width:100%;padding:14px;font-size:15px;margin-top:4px}
.fnote{margin-top:13px;font-size:12px;color:var(--faint);line-height:1.5;text-align:center}
.fnote a{color:var(--dim);text-decoration:underline;text-underline-offset:2px}

.fdone{border-top:1px solid var(--line);padding-top:26px;text-align:center}
.fdone .ico{width:54px;height:54px;border-radius:50%;background:rgba(65,206,154,.13);border:1px solid rgba(65,206,154,.35);
  color:var(--mint);display:grid;place-items:center;margin:0 auto 14px}
.fdone .ico svg{width:26px;height:26px}
.fdone h3{font-size:20px;margin-bottom:8px}
.fdone p{font-size:15px;color:var(--dim);margin:0 0 6px}
.fdone .btn{margin-top:16px}

/* ════ blog index ════ */
.postgrid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;margin:30px 0 0;max-width:var(--maxw)}
.postcard{display:flex;flex-direction:column;gap:10px;border:1px solid var(--line);border-radius:var(--r);padding:24px 22px;
  background:linear-gradient(165deg,var(--panel),rgba(12,16,23,.7));transition:border-color .25s,transform .25s var(--ease),box-shadow .25s}
.postcard:hover{border-color:var(--line2);transform:translateY(-3px);box-shadow:0 22px 50px -30px rgba(0,0,0,.9)}
.postcard .date{font-family:var(--mono);font-size:11px;letter-spacing:.08em;color:var(--faint)}
.postcard h2{font-size:19px;margin:0;line-height:1.25}
.postcard p{margin:0;font-size:15px;color:var(--dim);line-height:1.6}
.postcard .more{margin-top:auto;padding-top:6px;display:inline-flex;align-items:center;gap:7px;
  font-size:14px;font-weight:600;color:var(--turq)}
.postcard .more svg{width:15px;height:15px;transition:transform .25s var(--ease)}
.postcard:hover .more svg{transform:translateX(4px)}
.blogwide{max-width:var(--maxw)}

/* ════ footer ════ */
footer{position:relative;z-index:1;border-top:1px solid var(--line);padding:46px 0 38px;margin-top:70px}
.fgrid{display:flex;justify-content:space-between;gap:32px;flex-wrap:wrap}
.fbrand{max-width:290px}
.fbrand p{font-size:13.5px;color:var(--dim);margin-top:12px;line-height:1.55}
.fcols{display:flex;gap:52px;flex-wrap:wrap}
.fcol h4{font-family:var(--mono);font-size:10.5px;text-transform:uppercase;letter-spacing:.12em;color:var(--faint);margin-bottom:13px;font-weight:500}
.fcol a{display:flex;align-items:center;gap:7px;font-size:13.5px;color:var(--dim);margin-bottom:10px;transition:color .2s}
.fcol a svg{width:14px;height:14px;flex:none}
.fcol a:hover{color:var(--ink)}
.fbot{margin-top:34px;padding-top:20px;border-top:1px solid var(--line);display:flex;justify-content:space-between;
  gap:14px;flex-wrap:wrap;font-size:12.5px;color:var(--faint)}
.fbot a:hover{color:var(--ink)}

/* floating cta */
.fab{position:fixed;right:18px;bottom:18px;z-index:60;opacity:0;transform:translateY(18px);pointer-events:none;
  transition:opacity .4s,transform .4s var(--ease)}
.fab.show{opacity:1;transform:none;pointer-events:auto}
.fab .btn{box-shadow:0 14px 36px rgba(0,0,0,.55)}

/* ════ адаптив ════ */
@media(max-width:1020px){
  .navlinks{gap:15px}
  .navlinks a{font-size:13.5px}
}
@media(max-width:900px){
  .navlinks{display:none}
  .burger{display:grid}
  .doc{padding-top:18px}
}
@media(max-width:720px){
  body{font-size:16.5px}
  .nav{height:60px;gap:10px}
  .mobmenu{top:60px}
  .brand{font-size:15px;gap:9px}
  .mark{width:30px;height:30px;border-radius:9px}
  .navright{gap:8px}
  .navright .btn-primary span{display:none}
  .navright .btn-primary{padding:10px 12px}
  .lang a{padding:6px 8px}
  .doc .grid2{grid-template-columns:1fr}
  .postgrid{grid-template-columns:1fr}
  .cta{padding:26px 20px;border-radius:var(--r)}
  .frow{grid-template-columns:1fr;gap:0}
  .ctaband{padding:18px;border-radius:var(--r)}
  .ctaband .btns{width:100%}
  .ctaband .btns .btn{flex:1 1 auto;justify-content:center}
  footer{margin-top:52px}
  .fcols{gap:30px}
  .fab .lbl{display:none}
  .fab{right:14px;bottom:14px}
}
@media(max-width:420px){
  .wrap{padding:0 15px}
  .doc h1{font-size:26px}
  .doc .lede{font-size:17px}
  .doc blockquote{padding:14px 16px}
  .doc .note{padding:16px 16px 16px 46px}
  .doc ol.steps>li{padding-left:44px}
  .cta{padding:22px 16px}
  .cta .btns .btn{flex:1 1 100%}
  .tablewrap table{min-width:440px}
  .fbot{flex-direction:column;gap:8px}
}

@media(prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important}
  .btn:hover,.postcard:hover,.doc .card:hover{transform:none}
}