/* ============ Design tokens ============ */
:root{
  --ink:#0f172a; --ink-2:#475569; --ink-3:#64748b;
  --bg:#f8f9ff; --surface:#ffffff; --sand:#e8ebfa; --line:rgba(15,23,42,.09);
  --gold:#4f46e5; --gold-2:#818cf8; --gold-dark:#3730a3;
  --grad:linear-gradient(135deg,#818cf8 0%,#4f46e5 55%,#4338ca 100%);
  --r:20px; --r-sm:12px;
  --shadow-1:0 1px 2px rgba(15,23,42,.06),0 4px 14px rgba(15,23,42,.05);
  --shadow-2:0 2px 4px rgba(15,23,42,.05),0 18px 44px rgba(15,23,42,.12);
  --display:"Plus Jakarta Sans","Inter",system-ui,sans-serif; --sans:"Inter",system-ui,-apple-system,"Segoe UI",sans-serif;
  /* legacy names used by older markup */
  --charcoal:var(--ink); --warm-black:#0b1020; --cream:var(--bg); --cream-dark:var(--sand);
  --gold-light:#818cf8;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--sans);background:var(--bg);color:var(--ink);line-height:1.65;font-size:16px;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
a{color:inherit;text-decoration:none}
ul,ol{list-style:none}
img{max-width:100%}
::selection{background:var(--gold-2);color:#000}
:focus-visible{outline:2px solid var(--gold);outline-offset:3px;border-radius:6px}
.wrap{max-width:1180px;margin:0 auto;padding:0 24px}
.center{text-align:center}
p.center{margin-top:34px}

/* ============ Type ============ */
h1,h2,h3{font-family:var(--display);line-height:1.08;font-weight:600;letter-spacing:-.02em}
h1{font-size:clamp(2.6rem,5.6vw,4.4rem);text-wrap:balance}
h1 em{font-style:italic;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;padding-right:.05em}
h2{font-size:clamp(1.9rem,4.2vw,3.1rem);margin-bottom:18px}
h3{font-size:1.25rem}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:.72rem;letter-spacing:.16em;text-transform:uppercase;color:var(--gold-dark);font-weight:600;margin-bottom:18px;padding:6px 14px;border-radius:99px;background:rgba(79,70,229,.1);border:1px solid rgba(79,70,229,.2)}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--grad)}
.eyebrow.gold{color:var(--gold-2);background:rgba(99,102,241,.12);border-color:rgba(99,102,241,.25)}
.lead{font-size:1.15rem;color:var(--ink-2);max-width:540px;margin:20px 0 30px;line-height:1.7}
.lead.narrow{margin-left:0}
.fine{font-size:.85rem;color:var(--ink-3);margin-top:14px}

/* ============ Buttons ============ */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:13px 26px;border-radius:999px;font-weight:600;font-size:.95rem;font-family:inherit;transition:transform .2s,box-shadow .2s,background .2s,color .2s;border:1.5px solid transparent;cursor:pointer;line-height:1.2}
.btn:active{transform:scale(.97)}
.btn-gold{background:var(--grad);color:#fff;box-shadow:0 6px 18px rgba(79,70,229,.38),inset 0 1px 0 rgba(255,255,255,.3)}
.btn-gold:hover{transform:translateY(-2px);box-shadow:0 12px 26px rgba(79,70,229,.45),inset 0 1px 0 rgba(255,255,255,.3)}
.btn-dark{background:var(--ink);color:#fff}
.btn-dark:hover{background:#2c2620;transform:translateY(-2px)}
.btn-ghost{background:rgba(255,255,255,.6);border-color:var(--line);color:var(--ink);backdrop-filter:blur(6px)}
.btn-ghost:hover{background:#fff;border-color:rgba(15,23,42,.25);transform:translateY(-2px)}
.btn.big{padding:17px 38px;font-size:1.05rem;margin-top:26px}
.link{color:var(--gold-dark);font-weight:600;border-bottom:1.5px solid transparent;transition:.2s}
.link:hover{border-color:currentColor}
.cta-row{display:flex;gap:12px;flex-wrap:wrap}

/* ============ Top bar + nav ============ */
.topbar{background:var(--ink);color:#e9dfcd;text-align:center;font-size:.8rem;padding:9px 14px;letter-spacing:.01em}
.topbar a:hover{color:var(--gold-2)}
.nav{position:sticky;top:0;z-index:50;display:flex;justify-content:space-between;align-items:center;padding:14px max(24px,calc((100vw - 1180px)/2 + 24px));background:rgba(251,248,243,.78);backdrop-filter:saturate(180%) blur(18px);-webkit-backdrop-filter:saturate(180%) blur(18px);border-bottom:1px solid var(--line)}
.logo{font-family:var(--display);font-size:1.55rem;font-weight:700;letter-spacing:-.03em;display:inline-flex;align-items:center;white-space:nowrap}
.logo::before{content:"";width:26px;height:26px;margin-right:9px;border-radius:9px;background:var(--grad);box-shadow:inset 0 -3px 6px rgba(0,0,0,.18),0 4px 10px rgba(79,70,229,.4);flex-shrink:0}
.logo span{color:var(--gold)}
.nav nav{display:flex;align-items:center;gap:6px;font-size:.92rem;font-weight:500}
.nav nav a:not(.btn){padding:8px 14px;border-radius:99px;color:var(--ink-2);transition:.2s}
.nav nav a:not(.btn):hover{background:rgba(15,23,42,.06);color:var(--ink)}
.nav nav .btn{padding:10px 20px;margin-left:8px}
.burger{display:none;background:none;border:0;cursor:pointer;flex-direction:column;gap:5px;padding:8px}
.burger i{display:block;width:24px;height:2px;background:var(--ink);border-radius:2px}

/* ============ Hero ============ */
.hero{position:relative;padding:84px 0 110px;overflow:hidden;isolation:isolate}
.blob{position:absolute;border-radius:50%;filter:blur(80px);opacity:.55;z-index:-1;animation:drift 18s ease-in-out infinite alternate}
.blob.b1{width:520px;height:520px;background:#f1d28a;top:-160px;right:-80px}
.blob.b2{width:420px;height:420px;background:#f3c6b3;bottom:-160px;left:-120px;animation-delay:-6s}
@keyframes drift{to{transform:translate(40px,30px) scale(1.12)}}
.hero-grid{display:grid;grid-template-columns:1.1fr 1fr;gap:48px;align-items:center}
.hero-copy h1{margin-bottom:6px}
.phones{position:relative;height:500px}
.phone{position:absolute;width:200px;height:416px;background:#0b1020;border-radius:38px;padding:8px;box-shadow:0 40px 70px -20px rgba(15,23,42,.45),0 0 0 1.5px #2e2924,inset 0 0 0 2px #1d1915}
.phone::before{content:"";position:absolute;top:15px;left:50%;transform:translateX(-50%);width:62px;height:18px;background:#0b1020;border-radius:12px;z-index:2}
.screen{width:100%;height:100%;border-radius:31px;overflow:hidden;position:relative}
.p1{left:0;top:64px;transform:rotate(-7deg);animation:float 7s ease-in-out infinite}
.p2{left:50%;transform:translateX(-50%);top:0;z-index:2;animation:float 7s ease-in-out -2s infinite}
.p3{right:0;top:64px;transform:rotate(7deg);animation:float 7s ease-in-out -4s infinite}
@keyframes float{50%{translate:0 -12px}}
.welcome{background:linear-gradient(165deg,#f5f7ff,#f1e3c8);display:flex;flex-direction:column;justify-content:center;align-items:center;text-align:center;gap:6px;padding:22px}
.welcome small{font-size:.62rem;letter-spacing:.18em;text-transform:uppercase;color:var(--gold-dark);font-weight:600}
.welcome b{font-family:var(--display);font-size:1.4rem;line-height:1.12;letter-spacing:-.02em}
.welcome span{font-size:.74rem;color:var(--ink-3);margin-bottom:14px}
.pill{background:var(--grad);color:#fff;font-style:normal;font-size:.7rem;font-weight:600;padding:9px 18px;border-radius:99px;box-shadow:0 6px 14px rgba(79,70,229,.4)}
.camera{background:#000}
.viewfinder{position:absolute;inset:0;background:radial-gradient(circle at 28% 25%,#f3d58b 0,#4f46e5 38%,#3a2a12 75%,#0b1020 100%)}
.viewfinder::after{content:"";position:absolute;inset:18% 14%;border:1.5px solid rgba(255,255,255,.55);border-radius:14px}
.shutter{position:absolute;bottom:22px;left:50%;transform:translateX(-50%);width:56px;height:56px;border-radius:50%;border:4px solid #fff;box-shadow:inset 0 0 0 4px #000,inset 0 0 0 30px #fff}
.gallery{background:#eef2ff;display:grid;grid-template-columns:repeat(3,1fr);gap:3px;padding:34px 3px 3px;align-content:start}
.gallery i{aspect-ratio:1;background:#818cf8;border-radius:3px}
.gallery i:nth-child(2n){background:#4f46e5}
.gallery i:nth-child(3n){background:#3730a3}
.gallery i:nth-child(5n){background:#e8d9bd}
.gallery i:nth-child(7n){background:#d9a3a3}

/* ============ Band ============ */
.band{background:var(--ink);color:#fff;text-align:center;padding:44px 20px;position:relative;overflow:hidden}
.band::before{content:"";position:absolute;inset:0;background:radial-gradient(60% 140% at 50% 0,rgba(99,102,241,.25),transparent 70%)}
.band p{position:relative;font-family:var(--display);font-style:italic;font-size:clamp(1.4rem,3.2vw,2.2rem);color:#ecd9a8;letter-spacing:-.01em}

/* ============ Sections ============ */
.section{padding:110px 0}
.section.tint{background:var(--sand)}
.section.dark{background:var(--warm-black);color:#f4ecdd;position:relative;overflow:hidden}
.section.dark::before{content:"";position:absolute;width:700px;height:700px;right:-250px;top:-250px;background:radial-gradient(circle,rgba(99,102,241,.2),transparent 65%)}
.section.dark .wrap{position:relative}
.split{display:grid;grid-template-columns:1fr 1fr;gap:72px;align-items:center}
.steps{margin-top:30px;display:grid;gap:8px;counter-reset:s}
.steps li{counter-increment:s;padding:18px 20px 18px 74px;position:relative;background:var(--surface);border:1px solid var(--line);border-radius:var(--r);box-shadow:var(--shadow-1);transition:.25s}
.steps li:hover{transform:translateX(6px);box-shadow:var(--shadow-2)}
.steps li::before{content:counter(s);position:absolute;left:18px;top:50%;transform:translateY(-50%);width:42px;height:42px;border-radius:14px;background:var(--grad);color:#fff;display:grid;place-items:center;font-weight:700;font-family:var(--display);font-size:1.1rem;box-shadow:0 6px 14px rgba(79,70,229,.35)}
.steps b{display:block;font-size:1.05rem}
.steps span{color:var(--ink-3);font-size:.93rem}
.mock-card{background:var(--surface);border:1px solid var(--line);border-radius:32px;padding:40px;text-align:center;box-shadow:var(--shadow-2);position:relative}
.mock-card::before{content:"";position:absolute;inset:-1px;border-radius:32px;padding:1px;background:linear-gradient(140deg,rgba(99,102,241,.7),transparent 45%);-webkit-mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);-webkit-mask-composite:xor;mask-composite:exclude;pointer-events:none}
.qr{width:178px;height:178px;margin:0 auto 16px;background:conic-gradient(var(--ink) 25%,#fff 0 50%,var(--ink) 0 75%,#fff 0) 0 0/22px 22px;border:12px solid #fff;outline:1.5px solid var(--ink);border-radius:14px}
.mock-card p{font-weight:600}
.stream{display:flex;gap:9px;justify-content:center;margin-top:24px}
.stream i{width:54px;height:54px;border-radius:14px;background:#818cf8;animation:pop 2.4s infinite}
.stream i:nth-child(2){animation-delay:.4s;background:#4f46e5}
.stream i:nth-child(3){animation-delay:.8s;background:#3730a3}
.stream i:nth-child(4){animation-delay:1.2s;background:#e3b9a8}
@keyframes pop{0%,100%{transform:scale(.82);opacity:.45}50%{transform:scale(1);opacity:1}}

.cards4{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-top:44px}
.tpl{aspect-ratio:3/4;border-radius:24px;position:relative;overflow:hidden;display:flex;align-items:flex-end;transition:transform .35s,box-shadow .35s;box-shadow:var(--shadow-1)}
.tpl::before{content:"❦";position:absolute;top:36%;left:50%;transform:translate(-50%,-50%);font-size:3.4rem;color:rgba(255,255,255,.55)}
.tpl:hover{transform:translateY(-10px) rotate(-1deg);box-shadow:var(--shadow-2)}
.tpl span{width:100%;padding:60px 20px 20px;color:#fff;font-family:var(--display);font-size:1.2rem;background:linear-gradient(transparent,rgba(0,0,0,.7));letter-spacing:-.01em}
.t1{background:linear-gradient(150deg,#e3be72,#4338ca)}
.t2{background:linear-gradient(150deg,#e8b4b4,#8a2f45)}
.t3{background:linear-gradient(150deg,#6a3050,#0f172a)}
.t4{background:linear-gradient(150deg,#a5b4fc,#2f6b3a)}
.feat{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:30px 26px;box-shadow:var(--shadow-1);transition:transform .3s,box-shadow .3s,border-color .3s;position:relative;overflow:hidden}
.feat::after{content:"";position:absolute;inset:auto -30% -60% auto;width:160px;height:160px;background:radial-gradient(circle,rgba(99,102,241,.25),transparent 70%);opacity:0;transition:.4s}
.feat:hover{transform:translateY(-6px);box-shadow:var(--shadow-2);border-color:rgba(79,70,229,.35)}
.feat:hover::after{opacity:1}
.ico{width:50px;height:50px;border-radius:16px;background:linear-gradient(145deg,#e0e7ff,#c7d2fe);color:var(--gold-dark);display:grid;place-items:center;font-size:1.35rem;margin-bottom:20px;box-shadow:inset 0 1px 0 #fff}
.feat h3{margin-bottom:8px}
.feat p{font-size:.94rem;color:var(--ink-3)}

.compare{display:grid;grid-template-columns:1fr 1fr;gap:24px;margin-top:44px}
.col{border:1px solid rgba(255,255,255,.1);background:rgba(255,255,255,.03);border-radius:28px;padding:38px}
.col.good{background:var(--grad);border-color:transparent;color:#fff;box-shadow:0 30px 60px -20px rgba(79,70,229,.5)}
.col h3{font-size:1.5rem;margin-bottom:20px}
.col li{padding:13px 0 13px 34px;position:relative;border-top:1px solid rgba(255,255,255,.12)}
.col li::before{content:"✕";position:absolute;left:0;top:13px;color:#e58a8a;font-weight:700}
.col.good li::before{content:"✓";color:#fff}

/* ============ Testimonials ============ */
.marquee{overflow:hidden;margin-top:44px;-webkit-mask:linear-gradient(90deg,transparent,#000 8%,#000 92%,transparent);mask:linear-gradient(90deg,transparent,#000 8%,#000 92%,transparent)}
.track{display:flex;gap:20px;width:max-content;animation:scroll 55s linear infinite;padding:10px 0 24px}
.marquee:hover .track{animation-play-state:paused}
@keyframes scroll{to{transform:translateX(-50%)}}
.quote{width:340px;background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:28px;box-shadow:var(--shadow-1);flex-shrink:0;position:relative}
.quote::before{content:"“";position:absolute;top:6px;right:22px;font-family:var(--display);font-size:4.5rem;line-height:1;color:rgba(79,70,229,.2)}
.quote p{font-size:.98rem;margin-bottom:16px;color:var(--ink)}
.quote b{font-size:.84rem;color:var(--gold-dark)}

/* ============ FAQ ============ */
.narrow-wrap{max-width:800px}
details{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-sm);margin-top:12px;padding:20px 24px;box-shadow:var(--shadow-1);transition:.2s}
details[open]{box-shadow:var(--shadow-2);border-color:rgba(79,70,229,.35)}
summary{cursor:pointer;font-weight:600;list-style:none;display:flex;justify-content:space-between;align-items:center;gap:16px}
summary::-webkit-details-marker{display:none}
summary::after{content:"+";flex-shrink:0;width:28px;height:28px;border-radius:50%;background:var(--sand);display:grid;place-items:center;color:var(--gold-dark);font-size:1.2rem;line-height:1;transition:.25s}
details[open] summary::after{content:"–";background:var(--grad);color:#fff}
details p{margin-top:12px;color:var(--ink-2)}

.cta{background:radial-gradient(80% 160% at 50% 0,#a67a2a 0,#4a3412 55%,#0f172a 100%);color:#fff;padding:120px 0;position:relative;overflow:hidden}
.cta h2{font-size:clamp(2.2rem,5vw,3.8rem);max-width:760px;margin:0 auto}
.cta .btn-gold{background:#fff;color:var(--ink);box-shadow:0 10px 30px rgba(0,0,0,.35)}
.cta .fine{color:#e2d3b3}

/* ============ Footer ============ */
footer{background:var(--warm-black);color:#d8cdb9;padding:80px 0 28px}
.foot-grid{display:grid;grid-template-columns:1.6fr repeat(4,1fr);gap:36px}
footer .logo{color:#fff;margin-bottom:6px}
footer p{margin:14px 0 22px;font-size:.92rem;color:#9b917f;max-width:300px}
footer h4{font-size:.74rem;letter-spacing:.16em;text-transform:uppercase;color:var(--gold-2);margin-bottom:16px;font-weight:600}
footer .foot-grid>div>a:not(.btn):not(.logo){display:block;font-size:.92rem;padding:5px 0;color:#c4b9a5;transition:.2s}
footer a:hover{color:var(--gold-2)}
footer .btn-gold:hover{color:#fff}
.foot-bottom{display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;margin-top:56px;padding-top:24px;border-top:1px solid rgba(255,255,255,.08);font-size:.82rem;color:#857b6a}

/* ============ Scroll reveal ============ */
.reveal{opacity:0;transform:translateY(28px);transition:opacity .8s cubic-bezier(.2,.7,.2,1),transform .8s cubic-bezier(.2,.7,.2,1)}
.reveal.in{opacity:1;transform:none}

/* ============ Responsive ============ */
@media(max-width:960px){
  .hero{padding:56px 0 80px}
  .hero-grid,.split,.compare{grid-template-columns:1fr;gap:44px}
  .section{padding:80px 0}
  .cards4{grid-template-columns:repeat(2,1fr)}
  .foot-grid{grid-template-columns:1fr 1fr}
  .phones{height:470px;max-width:480px;margin:0 auto;width:100%}
  .burger{display:flex}
  .nav nav{display:none;position:absolute;top:100%;left:0;right:0;background:rgba(251,248,243,.97);backdrop-filter:blur(18px);flex-direction:column;align-items:stretch;padding:14px 24px 22px;gap:2px;border-bottom:1px solid var(--line);box-shadow:0 20px 30px rgba(15,23,42,.08)}
  .nav nav.open{display:flex}
  .nav nav a:not(.btn){padding:13px 14px}
  .nav nav .btn{margin:8px 0 0}
}
@media(max-width:560px){
  .wrap{padding:0 18px}
  .phone{width:152px;height:318px;border-radius:30px}
  .phone::before{top:12px;width:48px;height:14px}
  .screen{border-radius:23px}
  .phones{height:370px}
  .p1,.p3{top:44px}
  .cards4{grid-template-columns:1fr}
  .quote{width:290px}
  .mock-card{padding:28px}
  .foot-grid{grid-template-columns:1fr}
}
@media(prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none!important;transition:none!important;scroll-behavior:auto!important}
  .reveal{opacity:1;transform:none}
}


/* ===== ithubseva brand + responsive layer ===== */
:root{--ith-brand:#4f46e5;--ith-brand-dark:#4338ca;--ith-accent:#06b6d4;--ith-soft:#eef2ff;--ith-grad:linear-gradient(135deg,#4f46e5 0%,#7c3aed 55%,#06b6d4 100%)}
html{-webkit-text-size-adjust:100%}
body{font-family:Inter,"Plus Jakarta Sans",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;-webkit-font-smoothing:antialiased;overflow-x:hidden}
img,video,svg,canvas,iframe{max-width:100%}
img,video{height:auto}
::selection{background:#c7d2fe;color:#1e1b4b}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:3px solid rgba(79,70,229,.35);outline-offset:2px}
@media(max-width:768px){
  input:not([type=checkbox]):not([type=radio]),select,textarea{font-size:16px!important}
  table{display:block;max-width:100%;overflow-x:auto;-webkit-overflow-scrolling:touch}
  pre,code{white-space:pre-wrap;word-break:break-word}
}