/* Karan Solutions — design system */
:root{
  --bg:#06080d; --bg-2:#0a0e16; --surface:#0e1420; --surface-2:#121a28;
  --line:rgba(255,255,255,.09); --line-2:rgba(255,255,255,.16);
  --text:#e8edf7; --muted:#9aa8bf; --muted-2:#6f7f99;
  --a1:#5b8cff; --a2:#8b5cf6; --a3:#22d3ee;
  --grad:linear-gradient(100deg,var(--a3),var(--a1) 45%,var(--a2));
  --radius:18px; --maxw:1180px;
  --shadow:0 24px 60px -24px rgba(0,0,0,.85);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;background:var(--bg);color:var(--text);
  font-family:"Inter",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
  font-size:17px;line-height:1.65;-webkit-font-smoothing:antialiased;overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
h1,h2,h3,h4{line-height:1.14;letter-spacing:-.028em;margin:0;font-weight:680}
h1{font-size:clamp(2.4rem,6.2vw,4.15rem);letter-spacing:-.04em}
h2{font-size:clamp(1.85rem,3.9vw,2.75rem);letter-spacing:-.032em}
h3{font-size:1.16rem;letter-spacing:-.018em}
p{margin:0}
.wrap{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 24px}
.grad{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.muted{color:var(--muted)}
.i{flex:none}

/* ---------- header ---------- */
header.site{position:sticky;top:0;z-index:60;backdrop-filter:blur(14px);
  background:rgba(6,8,13,.72);border-bottom:1px solid transparent;transition:border-color .3s,background .3s}
header.site.scrolled{border-bottom-color:var(--line);background:rgba(6,8,13,.9)}
.nav{display:flex;align-items:center;gap:28px;height:72px}
.brand{display:flex;align-items:center;gap:11px;font-weight:660;letter-spacing:-.02em;font-size:1.02rem}
.mark{width:34px;height:34px;border-radius:10px;background:var(--grad);display:grid;place-items:center;
  color:#06080d;font-weight:800;font-size:1.02rem;box-shadow:0 6px 20px -6px rgba(91,140,255,.7)}
.brand small{display:block;font-size:.66rem;font-weight:500;letter-spacing:.14em;text-transform:uppercase;color:var(--muted-2);margin-top:-2px}
.links{display:flex;gap:4px;margin-left:auto;align-items:center}
.links a{padding:8px 13px;border-radius:10px;font-size:.94rem;color:var(--muted);transition:.2s}
.links a:hover{color:var(--text);background:rgba(255,255,255,.06)}
.links a.on{color:var(--text)}
.lang{display:flex;gap:2px;border:1px solid var(--line);border-radius:10px;padding:3px;margin-left:6px}
.lang a{padding:4px 9px;border-radius:7px;font-size:.78rem;font-weight:600;letter-spacing:.04em;color:var(--muted-2)}
.lang a.on{background:rgba(255,255,255,.1);color:var(--text)}
.burger{display:none;margin-left:auto;background:none;border:1px solid var(--line);color:var(--text);
  border-radius:11px;width:42px;height:42px;align-items:center;justify-content:center;cursor:pointer}
.burger span{display:block;width:17px;height:1.6px;background:currentColor;position:relative}
.burger span::before,.burger span::after{content:"";position:absolute;left:0;width:17px;height:1.6px;background:currentColor}
.burger span::before{top:-5.5px}.burger span::after{top:5.5px}

.skip{position:absolute;left:-9999px;top:0;z-index:99;padding:12px 18px;background:#0e1420;border:1px solid var(--line-2);border-radius:0 0 12px 0}
.skip:focus{left:0}
/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;gap:9px;padding:13px 22px;border-radius:13px;font-weight:600;
  font-size:.96rem;border:1px solid transparent;cursor:pointer;transition:transform .18s,box-shadow .25s,background .25s,border-color .25s;white-space:nowrap}
.btn-p{background:linear-gradient(100deg,#38dcf2,#7aa9ff 52%,#b39bff);color:#05070c;box-shadow:0 12px 34px -14px rgba(91,140,255,.95)}
.btn-p:hover{transform:translateY(-2px);box-shadow:0 20px 46px -16px rgba(139,92,246,.95)}
.btn-s{border-color:var(--line-2);color:var(--text);background:rgba(255,255,255,.035)}
.btn-s:hover{background:rgba(255,255,255,.09);transform:translateY(-2px)}
.btn-sm{padding:10px 16px;font-size:.9rem}
.arrow{transition:transform .2s}
.btn:hover .arrow{transform:translateX(3px)}

/* ---------- hero ---------- */
.hero{position:relative;padding:clamp(72px,11vw,132px) 0 clamp(64px,8vw,96px);overflow:hidden}
.hero::before{content:"";position:absolute;inset:-40% -20% auto -20%;height:900px;pointer-events:none;
  background:radial-gradient(52% 46% at 22% 30%,rgba(91,140,255,.30),transparent 68%),
             radial-gradient(46% 42% at 78% 18%,rgba(139,92,246,.26),transparent 66%),
             radial-gradient(40% 40% at 55% 62%,rgba(34,211,238,.13),transparent 70%)}
.hero::after{content:"";position:absolute;inset:0;pointer-events:none;opacity:.5;
  background-image:linear-gradient(rgba(255,255,255,.045) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(255,255,255,.045) 1px,transparent 1px);
  background-size:64px 64px;
  -webkit-mask-image:radial-gradient(70% 58% at 50% 32%,#000,transparent 78%);
  mask-image:radial-gradient(70% 58% at 50% 32%,#000,transparent 78%)}
.hero .wrap{position:relative;z-index:2}
.pill{display:inline-flex;align-items:center;gap:9px;padding:7px 15px 7px 9px;border:1px solid var(--line);
  border-radius:999px;background:rgba(255,255,255,.04);font-size:.82rem;color:var(--muted);margin-bottom:26px}
.dot{width:7px;height:7px;border-radius:50%;background:#34d399;box-shadow:0 0 0 4px rgba(52,211,153,.16)}
.hero h1{max-width:16ch}
.lead{font-size:clamp(1.06rem,1.9vw,1.26rem);color:var(--muted);max-width:60ch;margin-top:26px;line-height:1.62}
.cta-row{display:flex;flex-wrap:wrap;gap:13px;margin-top:38px}
.trust{display:flex;flex-wrap:wrap;gap:14px 40px;margin-top:56px;padding-top:34px;border-top:1px solid var(--line)}
.trust div{min-width:150px}
.trust b{display:block;font-size:1.42rem;letter-spacing:-.02em;font-weight:680}
.trust span{font-size:.86rem;color:var(--muted-2)}

/* ---------- sections ---------- */
section{padding:clamp(64px,8vw,104px) 0;position:relative}
.eyebrow{display:inline-flex;align-items:center;gap:9px;font-size:.76rem;font-weight:640;letter-spacing:.16em;
  text-transform:uppercase;color:var(--a3);margin-bottom:16px}
.eyebrow::before{content:"";width:22px;height:1px;background:var(--grad)}
.sec-head{max-width:64ch;margin-bottom:52px}
.sec-head p{color:var(--muted);margin-top:16px;font-size:1.04rem}
.alt{background:linear-gradient(180deg,transparent,var(--bg-2) 12%,var(--bg-2) 88%,transparent);
  border-top:1px solid var(--line);border-bottom:1px solid var(--line)}

/* ---------- cards ---------- */
.grid{display:grid;gap:18px}
.g3{grid-template-columns:repeat(3,1fr)}
.g2{grid-template-columns:repeat(2,1fr)}
.card{position:relative;background:linear-gradient(180deg,var(--surface),rgba(14,20,32,.55));
  border:1px solid var(--line);border-radius:var(--radius);padding:28px;transition:transform .25s,border-color .25s,box-shadow .3s;overflow:hidden}
.card::after{content:"";position:absolute;inset:0;border-radius:var(--radius);pointer-events:none;opacity:0;transition:opacity .3s;
  background:radial-gradient(90% 70% at 50% -10%,rgba(91,140,255,.16),transparent 60%)}
.card:hover{transform:translateY(-4px);border-color:var(--line-2);box-shadow:var(--shadow)}
.card:hover::after{opacity:1}
.card .ico{width:46px;height:46px;border-radius:13px;display:grid;place-items:center;margin-bottom:20px;
  background:rgba(91,140,255,.12);border:1px solid rgba(91,140,255,.22);color:#a9c2ff}
.card h3{margin-bottom:10px}
.card p{color:var(--muted);font-size:.97rem}
.card ul{margin:16px 0 0;padding:0;list-style:none;display:flex;flex-wrap:wrap;gap:7px}
.card ul li{font-size:.79rem;color:var(--muted-2);border:1px solid var(--line);border-radius:8px;padding:4px 9px;background:rgba(255,255,255,.02)}

/* ---------- product ---------- */
.prod{display:grid;grid-template-columns:1.05fr .95fr;gap:0;border:1px solid var(--line);border-radius:22px;overflow:hidden;background:var(--surface)}
.prod + .prod{margin-top:22px}
.prod .body{padding:clamp(28px,3.4vw,44px)}
.prod .side{background:linear-gradient(150deg,rgba(91,140,255,.16),rgba(139,92,246,.10) 55%,rgba(34,211,238,.08));
  border-left:1px solid var(--line);padding:clamp(28px,3.4vw,44px);display:flex;flex-direction:column;justify-content:center;gap:14px}
.badge{display:inline-flex;align-items:center;gap:7px;font-size:.74rem;font-weight:640;letter-spacing:.1em;text-transform:uppercase;
  padding:5px 11px;border-radius:999px;border:1px solid rgba(52,211,153,.3);background:rgba(52,211,153,.1);color:#6ee7b7}
.badge.dev{border-color:rgba(251,191,36,.3);background:rgba(251,191,36,.1);color:#fcd34d}
.prod h3{font-size:1.6rem;margin:16px 0 12px;letter-spacing:-.028em}
.feat{list-style:none;margin:22px 0 0;padding:0;display:grid;gap:11px}
.feat li{display:flex;gap:11px;align-items:flex-start;color:var(--muted);font-size:.96rem}
.feat li::before{content:"";flex:none;width:18px;height:18px;margin-top:3px;border-radius:6px;
  background:rgba(91,140,255,.14);border:1px solid rgba(91,140,255,.3);
  background-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23a9c2ff' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'><path d='M20 6 9 17l-5-5'/></svg>");
  background-size:12px;background-repeat:no-repeat;background-position:center}
.kv{display:flex;justify-content:space-between;gap:16px;padding:11px 0;border-bottom:1px dashed var(--line);font-size:.92rem}
.kv:last-child{border-bottom:0}
.kv span{color:var(--muted-2)}
.kv b{font-weight:600;text-align:right}

/* ---------- steps ---------- */
.steps{counter-reset:s;display:grid;gap:18px;grid-template-columns:repeat(4,1fr)}
.step{position:relative;padding:26px 22px;border:1px solid var(--line);border-radius:var(--radius);background:var(--surface)}
.step::before{counter-increment:s;content:"0" counter(s);position:absolute;top:20px;right:22px;font-size:1.9rem;font-weight:700;
  letter-spacing:-.04em;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;opacity:.55}
.step h3{margin:0 0 9px;font-size:1.04rem;max-width:12ch}
.step p{font-size:.92rem;color:var(--muted)}

/* ---------- team ---------- */
.person{display:flex;gap:20px;align-items:flex-start;padding:28px;border:1px solid var(--line);border-radius:var(--radius);background:var(--surface)}
.avatar{flex:none;width:62px;height:62px;border-radius:17px;display:grid;place-items:center;font-size:1.35rem;font-weight:700;
  color:#06080d;background:var(--grad)}
.person h3{margin-bottom:3px}
.role{color:var(--a3);font-size:.86rem;font-weight:600;letter-spacing:.02em;margin-bottom:12px}
.person p{color:var(--muted);font-size:.96rem}

/* ---------- faq ---------- */
.faq{border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:var(--surface)}
.faq details{border-bottom:1px solid var(--line)}
.faq details:last-child{border-bottom:0}
.faq summary{cursor:pointer;padding:20px 24px;font-weight:600;list-style:none;display:flex;justify-content:space-between;gap:18px;align-items:center;transition:background .2s}
.faq summary::-webkit-details-marker{display:none}
.faq summary:hover{background:rgba(255,255,255,.03)}
.faq summary::after{content:"+";font-size:1.4rem;font-weight:400;color:var(--muted-2);transition:transform .25s;flex:none}
.faq details[open] summary::after{transform:rotate(45deg)}
.faq .a{padding:0 24px 22px;color:var(--muted);font-size:.97rem;max-width:78ch}

/* ---------- cta band ---------- */
.band{position:relative;border:1px solid var(--line);border-radius:24px;padding:clamp(34px,5vw,64px);overflow:hidden;
  background:linear-gradient(140deg,rgba(91,140,255,.15),rgba(139,92,246,.11) 50%,rgba(34,211,238,.08));text-align:center}
.band h2{max-width:20ch;margin:0 auto}
.band p{color:var(--muted);max-width:56ch;margin:18px auto 0}
.band .cta-row{justify-content:center}

/* ---------- contact ---------- */
.contact-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:22px;align-items:start}
.cbox{border:1px solid var(--line);border-radius:var(--radius);background:var(--surface);padding:30px}
.crow{display:flex;gap:14px;align-items:center;padding:14px 0;border-bottom:1px solid var(--line)}
.crow:last-child{border-bottom:0}
.crow .ico{width:40px;height:40px;flex:none;border-radius:11px;display:grid;place-items:center;background:rgba(91,140,255,.12);border:1px solid rgba(91,140,255,.22);color:#a9c2ff}
.crow small{display:block;color:var(--muted-2);font-size:.78rem;letter-spacing:.06em;text-transform:uppercase}
.crow a,.crow b{font-weight:600;font-size:1rem}
.crow a:hover{color:var(--a3)}

/* ---------- footer ---------- */
footer.site{border-top:1px solid var(--line);padding:56px 0 40px;background:var(--bg-2)}
.fgrid{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:36px}
.fgrid h4{font-size:.76rem;letter-spacing:.16em;text-transform:uppercase;color:var(--muted-2);margin-bottom:16px;font-weight:640}
.fgrid ul{list-style:none;margin:0;padding:0;display:grid;gap:10px}
.fgrid a{color:var(--muted);font-size:.94rem}
.fgrid a:hover{color:var(--text)}
.fbot{margin-top:44px;padding-top:22px;border-top:1px solid var(--line);display:flex;flex-wrap:wrap;gap:12px;
  justify-content:space-between;color:var(--muted-2);font-size:.86rem}

/* ---------- reveal ---------- */
.rv{opacity:0;transform:translateY(18px);transition:opacity .7s cubic-bezier(.2,.7,.3,1),transform .7s cubic-bezier(.2,.7,.3,1)}
.rv.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){.rv{opacity:1;transform:none;transition:none}html{scroll-behavior:auto}}

/* ---------- responsive ---------- */
@media (max-width:980px){
  .g3{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:repeat(2,1fr)}
  .prod{grid-template-columns:1fr}
  .prod .side{border-left:0;border-top:1px solid var(--line)}
  .contact-grid{grid-template-columns:1fr}
  .fgrid{grid-template-columns:1fr 1fr}
}
@media (max-width:760px){
  body{font-size:16px}
  .burger{display:inline-flex}
  .links{position:fixed;inset:72px 0 auto 0;flex-direction:column;align-items:stretch;gap:2px;padding:16px 20px 24px;
    background:rgba(6,8,13,.98);border-bottom:1px solid var(--line);display:none;margin-left:0}
  .links.open{display:flex}
  .links a{padding:13px 12px;font-size:1rem}
  .links .btn{justify-content:center;margin-top:10px}
  .lang{margin:10px 0 0;align-self:flex-start}
  .g3,.g2,.steps,.fgrid{grid-template-columns:1fr}
  .trust{gap:22px}
  .person{flex-direction:column;gap:16px}
}