:root{
  --bg:#0F172A; --bg2:#0B1220; --surface:#16213A; --line:#26324A;
  --fg:#F8FAFC; --muted:#94A3B8; --accent:#06B6D4; --accent2:#2563EB;
  --font:"Plus Jakarta Sans", system-ui, sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth; font-size:112.5%; overflow-x:hidden}
section[id]{scroll-margin-top:calc(var(--navh, 64px) + 14px)}
body{
  margin:0; font-family:var(--font); color:var(--fg); background:var(--bg);
  line-height:1.65; -webkit-font-smoothing:antialiased; overflow-x:hidden; max-width:100vw;
}
h1,h2,h3{font-family:var(--font); font-weight:800; letter-spacing:-.02em; line-height:1.12; margin:0}
p{margin:0}
a{color:inherit; text-decoration:none}
img{max-width:100%; display:block}
:focus-visible{outline:2px solid var(--accent); outline-offset:3px; border-radius:6px}
.wrap{max-width:1180px; margin:0 auto; padding:0 28px}
section{position:relative}
.eyebrow{font-size:13px; font-weight:700; letter-spacing:.08em; text-transform:uppercase; color:var(--accent)}

.btn{
  display:inline-flex; align-items:center; justify-content:center; gap:9px;
  padding:15px 26px; border-radius:12px; font-weight:700; font-size:15.5px;
  background:linear-gradient(135deg, var(--accent), var(--accent2)); color:#04141C;
  border:1px solid transparent; cursor:pointer; transition:transform .15s ease, box-shadow .15s ease;
  box-shadow:0 10px 24px -8px rgba(6,182,212,.55);
}
.btn:hover{transform:translateY(-2px)}
.btn--ghost{
  background:transparent; color:var(--fg); border:1px solid var(--line); box-shadow:none;
}
.btn--sm{padding:10px 18px; font-size:14px; border-radius:10px}
.cta-row{display:flex; flex-wrap:wrap; gap:14px}

/* ---------- nav ---------- */
.nav{
  position:fixed; top:0; left:0; right:0; z-index:50;
  display:flex; align-items:center; justify-content:space-between;
  padding:14px 28px; background:rgba(15,23,42,.82); backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px); border-bottom:1px solid var(--line);
}
.nav__brand{display:flex; align-items:center; gap:10px}
.nav__brand img{width:34px; height:34px; border-radius:10px}
.nav__brand span{font-weight:800; font-size:20px; letter-spacing:-.02em}
.nav__links{display:flex; align-items:center; gap:30px}
.nav__links a{font-size:14.5px; font-weight:600; color:var(--muted); transition:color .15s}
.nav__links a:hover{color:var(--fg)}
.nav__links a.btn, .nav__links a.btn:hover{color:#04141C}
.nav__menu{display:none; background:none; border:0; color:var(--fg); cursor:pointer; padding:6px}
.nav__menu svg{width:26px; height:26px}
.nav__drawer{
  display:none; position:fixed; top:var(--navh, 64px); left:0; right:0; z-index:49;
  background:var(--bg2); border-bottom:1px solid var(--line); padding:18px 28px 26px;
  flex-direction:column; gap:16px;
}
.nav__drawer a{font-size:15.5px; font-weight:600; color:var(--fg)}
.nav__drawer.is-open{display:flex}

/* ---------- hero ---------- */
.hero{padding:150px 0 90px; overflow:hidden}
.hero::before{
  content:""; position:absolute; top:-10%; right:-10%; width:60%; padding-bottom:60%;
  border-radius:50%; background:radial-gradient(circle, rgba(6,182,212,.22), transparent 70%);
  pointer-events:none; z-index:0;
}
.hero__grid{display:grid; grid-template-columns:1.05fr .95fr; gap:56px; align-items:center; position:relative; z-index:1}
.badge{
  display:inline-flex; align-items:center; gap:9px; padding:8px 16px; border-radius:100px;
  background:var(--surface); border:1px solid var(--line); font-size:13.5px; font-weight:600; color:var(--muted);
}
.hero h1{font-size:clamp(2.3rem,4.6vw,3.5rem); margin-top:22px; max-width:15ch}
.hero h1 em{font-style:normal; background:linear-gradient(135deg,var(--accent),var(--accent2)); -webkit-background-clip:text; background-clip:text; color:transparent}
.hero__sub{margin-top:22px; max-width:46ch; font-size:1.08rem; line-height:1.7; color:var(--muted)}
.hero .cta-row{margin-top:34px}
.hero__note{margin-top:16px; font-size:.95rem; color:var(--muted)}
.hero__note a{color:var(--accent); font-weight:700}
.hero__proof{margin-top:30px; display:flex; flex-wrap:wrap; gap:10px}
.hero__proof a{
  display:inline-flex; align-items:center; gap:8px; padding:7px 14px 7px 8px; border-radius:100px;
  background:var(--surface); border:1px solid var(--line); font-size:13px; font-weight:600; color:var(--fg);
  text-decoration:none; transition:border-color .15s, transform .15s;
}
.hero__proof a:hover{border-color:var(--accent); transform:translateY(-1px)}
.hero__proof img{width:22px; height:22px; border-radius:6px}

/* mockup frame */
.mockframe{position:relative; height:480px}
.mphone{
  position:absolute; width:200px; border-radius:26px; background:#050B14; padding:6px;
  box-shadow:0 30px 60px -12px rgba(0,0,0,.6); border:1px solid rgba(255,255,255,.08);
}
.mphone img{border-radius:21px; width:100%; height:auto; display:block}
.mphone--a{top:10px; left:20px; z-index:3}
.mphone--b{top:70px; right:0; z-index:2; width:190px; opacity:.92}
.mphone--c{bottom:0; left:90px; z-index:1; width:180px; opacity:.85}

/* ---------- section titles ---------- */
.sec-head{max-width:640px; margin:0 auto 46px; text-align:center}
.sec-head h2{font-size:clamp(1.8rem,3.6vw,2.5rem); margin-top:14px}
.sec-head p{margin-top:16px; color:var(--muted); font-size:1.04rem; line-height:1.65}

/* ---------- pwa chat intro ---------- */
.pwachat{padding:100px 0}
.chat{max-width:560px; margin:0 auto; background:var(--surface); border:1px solid var(--line); border-radius:22px; overflow:hidden; box-shadow:0 20px 40px -20px rgba(0,0,0,.5)}
.chat__head{display:flex; align-items:center; gap:12px; padding:16px 20px; background:var(--bg2); border-bottom:1px solid var(--line)}
.chat__avatar{width:38px; height:38px; border-radius:50%; background:linear-gradient(135deg,var(--accent),var(--accent2)); display:flex; align-items:center; justify-content:center; font-size:18px; flex:none}
.chat__name{font-weight:700; font-size:.95rem}
.chat__status{font-size:.75rem; color:var(--accent)}
.chat__body{padding:22px 20px; display:flex; flex-direction:column; gap:10px}
.bubble{max-width:82%; padding:11px 15px; border-radius:16px; font-size:.92rem; line-height:1.5}
.bubble--in{align-self:flex-start; background:var(--bg); color:var(--fg); border-bottom-left-radius:4px}
.bubble__link{color:var(--accent); font-weight:700; text-decoration:underline; text-underline-offset:2px}
.bubble--out{align-self:flex-end; background:linear-gradient(135deg,var(--accent),var(--accent2)); color:#04141C; font-weight:700; border-bottom-right-radius:4px}
.chat__video{align-self:flex-end; width:82%; max-width:320px; margin-top:-2px; border-radius:16px; overflow:hidden; border:1px solid var(--line); background:#000}
.chat__video video{width:100%; height:auto; display:block}

/* ---------- showcase (compact app grid) ---------- */
.showcase{padding:110px 0}
.applist{display:grid; grid-template-columns:1fr 1fr; gap:16px}
.appcard{
  display:flex; align-items:center; gap:14px; padding:18px 20px;
  background:var(--surface); border:1px solid var(--line); border-radius:16px;
  transition:border-color .15s, transform .15s;
}
.appcard:hover{border-color:var(--accent); transform:translateY(-2px)}
.appcard img{width:48px; height:48px; border-radius:12px; flex:none}
.appcard__body{flex:1; min-width:0}
.appcard__body h3{font-size:1.06rem}
.appcard__cat{margin-top:3px; font-size:.83rem; color:var(--muted)}
.appcard__arrow{color:var(--accent); font-size:20px; font-weight:800; flex:none}
.showcase__hint{text-align:center; margin-top:28px; color:var(--muted); font-size:.94rem}
.showcase__hint a{color:var(--accent); font-weight:600}

/* ---------- product detail page ---------- */
.product{padding:150px 0 110px}
.product__grid{display:grid; grid-template-columns:1.1fr .9fr; gap:56px; align-items:center; position:relative; z-index:1}
.breadcrumb{display:inline-flex; align-items:center; gap:6px; color:var(--muted); font-size:.92rem; font-weight:600; margin-bottom:18px}
.breadcrumb:hover{color:var(--accent)}
.product h1{font-size:clamp(2rem,4vw,2.8rem); margin-top:16px}
.product__desc{margin-top:16px; max-width:48ch; color:var(--muted); font-size:1.06rem; line-height:1.7}
.product__feats{margin-top:22px; display:grid; gap:10px}
.product__feat{display:flex; align-items:center; gap:9px; font-size:.98rem; color:var(--fg)}
.product__feat::before{content:"✓"; color:var(--accent); font-weight:800}
.product .cta-row{margin-top:30px}
.product__shot{
  border-radius:22px; overflow:hidden; background:#050B14; border:1px solid rgba(255,255,255,.08);
  box-shadow:0 30px 60px -12px rgba(0,0,0,.6); max-width:280px; margin:0 auto;
}
.product__shot img{width:100%; height:auto; display:block}
.related{padding:90px 0 110px; background:var(--bg2); border-top:1px solid var(--line)}

/* ---------- install guide ---------- */
.install{padding:90px 0 110px}
.install__grid{display:grid; grid-template-columns:1fr 1fr; gap:22px}
.install__col{background:var(--surface); border:1px solid var(--line); border-radius:20px; padding:30px}
.install__badge{display:inline-flex; align-items:center; gap:8px; padding:7px 14px; border-radius:100px; background:var(--bg); border:1px solid var(--line); font-size:13px; font-weight:700; color:var(--accent); margin-bottom:18px}
.install__note{margin-top:22px; text-align:center; color:var(--muted); font-size:.94rem; background:var(--surface); border:1px solid var(--line); border-radius:14px; padding:16px 22px}
.install__try{margin-top:28px; text-align:center}
.install__tryrow{display:flex; flex-wrap:wrap; gap:12px; justify-content:center}
.install__count{margin-top:16px; font-size:.9rem; color:var(--muted)}
.install__count b{color:var(--accent)}
.install__count[hidden]{display:none}
#practiceInstallBtn[hidden]{display:none}

.install__video{max-width:220px; margin:0 auto 22px; border-radius:20px; overflow:hidden; border:1px solid rgba(255,255,255,.08); box-shadow:0 20px 40px -14px rgba(0,0,0,.6); background:#000}
.install__video video{width:100%; height:auto; display:block}

.install__caption{margin:0; padding:0; list-style:none; display:grid; gap:11px; font-size:.88rem; color:var(--muted)}
.install__caption li{display:flex; gap:11px; align-items:flex-start}
.install__caption b{flex:none; width:20px; height:20px; margin-top:1px; border-radius:50%; background:var(--accent); color:#04141C; font-size:11px; font-weight:800; display:flex; align-items:center; justify-content:center}

/* ---------- services ---------- */
.services{padding:100px 0; background:var(--bg2); border-top:1px solid var(--line); border-bottom:1px solid var(--line)}
.services__grid{display:grid; grid-template-columns:1fr 1fr; gap:22px}
.scard{background:var(--surface); border:1px solid var(--line); border-radius:22px; padding:36px}
.scard__n{font-size:13px; font-weight:800; letter-spacing:.08em; color:var(--accent)}
.scard h3{font-size:1.5rem; margin-top:14px}
.scard p{margin-top:14px; color:var(--muted); line-height:1.68; font-size:1rem}
.scard .btn{margin-top:22px}

/* ---------- pwa pillars ---------- */
.pwa{padding:110px 0}
.pillars{display:grid; grid-template-columns:repeat(3,1fr); gap:20px}
.pillar{background:var(--surface); border:1px solid var(--line); border-radius:20px; padding:30px; text-align:center}
.pillar__ico{font-size:34px; margin-bottom:14px}
.pillar h3{font-size:1.15rem}
.pillar p{margin-top:10px; color:var(--muted); font-size:.94rem; line-height:1.6}

/* ---------- process ---------- */
.process{padding:110px 0; background:var(--bg2); border-top:1px solid var(--line); border-bottom:1px solid var(--line)}
.steps4{display:grid; grid-template-columns:repeat(4,1fr); gap:18px}
.step4{position:relative; padding:28px 22px; background:var(--surface); border:1px solid var(--line); border-radius:18px}
.step4__n{
  width:38px; height:38px; border-radius:10px; display:grid; place-items:center;
  background:linear-gradient(135deg,var(--accent),var(--accent2)); color:#04141C; font-weight:800; font-size:15px;
}
.step4 h3{font-size:1.02rem; margin-top:16px}
.step4 p{margin-top:8px; color:var(--muted); font-size:.88rem; line-height:1.55}

/* ---------- faq ---------- */
.faq{padding:110px 0; background:var(--bg2); border-top:1px solid var(--line); border-bottom:1px solid var(--line)}
.faq__list{max-width:760px; margin:0 auto; display:grid; gap:14px}
.faq__item{background:var(--surface); border:1px solid var(--line); border-radius:16px; padding:6px 22px}
.faq__item summary{
  cursor:pointer; padding:18px 0; font-weight:700; font-size:1.02rem;
  display:flex; align-items:center; justify-content:space-between; gap:16px; list-style:none;
}
.faq__item summary::-webkit-details-marker{display:none}
.faq__item summary::after{content:"+"; font-size:1.4rem; font-weight:400; color:var(--accent); flex:none}
.faq__item[open] summary::after{content:"\2212"}
.faq__item p{padding:0 0 20px; color:var(--muted); font-size:.96rem; line-height:1.7}
.faq__item p a{color:var(--accent); font-weight:600}

/* ---------- contact / footer ---------- */
.contact{padding:110px 0 40px}
.contact__box{
  background:linear-gradient(135deg, rgba(6,182,212,.12), rgba(37,99,235,.12));
  border:1px solid var(--line); border-radius:28px; padding:52px 44px;
}
.contact__box h2{font-size:clamp(1.8rem,3.6vw,2.6rem); max-width:16ch}
.contact__box p{margin-top:16px; max-width:52ch; color:var(--muted); font-size:1.04rem; line-height:1.7}
.contact__grid{display:grid; grid-template-columns:1fr 1fr; gap:44px; margin-top:36px; align-items:start}
.flow{display:grid; gap:2px}
.flow__i{display:grid; grid-template-columns:36px 1fr; gap:14px; padding:16px 0; border-bottom:1px solid var(--line)}
.flow__i:last-child{border-bottom:0}
.flow__n{font-weight:800; color:var(--accent); font-size:13px; padding-top:3px}
.flow__t{font-weight:700; font-size:1rem}
.flow__d{margin-top:5px; font-size:.92rem; color:var(--muted); line-height:1.55}
.form{background:var(--bg2); border:1px solid var(--line); border-radius:18px; padding:26px}
.field{margin-bottom:16px}
.field label{display:block; font-size:.92rem; font-weight:700; margin-bottom:8px}
.field input, .field textarea{
  width:100%; font-family:var(--font); font-size:.98rem; color:var(--fg);
  background:var(--bg); border:1px solid var(--line); border-radius:11px; padding:13px 14px; resize:vertical;
}
.field input::placeholder, .field textarea::placeholder{color:var(--muted); opacity:.7}
.field input:focus, .field textarea:focus{outline:none; border-color:var(--accent)}
.field__hint{margin-top:7px; font-size:.85rem; color:var(--muted)}
.form .btn{width:100%; margin-top:4px}
.form__after{margin-top:14px; font-size:.88rem; color:var(--muted); text-align:center}
.form__after a{color:var(--accent); font-weight:600}
.form__msg{display:none; margin-top:14px; padding:14px 16px; border-radius:12px; font-size:.92rem; line-height:1.6; border:1px solid var(--line); background:var(--bg)}
.form__msg.is-on{display:block}
.form__msg a{color:var(--accent)}

.foot{padding:40px 0 50px; border-top:1px solid var(--line); margin-top:20px}
.foot__row{display:flex; flex-wrap:wrap; align-items:center; justify-content:space-between; gap:16px}
.foot__brand{display:flex; align-items:center; gap:9px}
.foot__brand img{width:26px; height:26px; border-radius:8px}
.foot__brand span{font-weight:800; font-size:15px}
.foot__fine{font-size:12.5px; color:var(--muted)}
.foot__links{display:flex; gap:18px; font-size:13px; color:var(--muted)}
.foot__links a:hover{color:var(--fg)}

/* ---------- responsive ---------- */
@media (max-width:980px){
  .nav__links{display:none}
  .nav__menu{display:inline-flex}
  .hero__grid{grid-template-columns:1fr; gap:36px}
  .mockframe{height:300px; max-width:280px; margin:10px auto 0}
  .mphone--b, .mphone--c{display:none}
  .mphone--a{position:static; width:220px; margin:0 auto}
  .install__grid{grid-template-columns:1fr}
  .services__grid{grid-template-columns:1fr}
  .pillars{grid-template-columns:1fr}
  .steps4{grid-template-columns:1fr 1fr}
  .contact__grid{grid-template-columns:1fr}
  .product__grid{grid-template-columns:1fr; gap:32px}
  .product__shot{order:-1}
}
@media (max-width:640px){
  .hero{padding:104px 0 56px}
  .wrap{padding:0 20px}
  .hero__grid{gap:30px}
  .badge{font-size:12.5px; padding:7px 13px}
  .hero h1{font-size:1.9rem}
  .hero__sub{font-size:1rem}
  .mockframe{max-width:230px}
  .mphone--a{width:190px}
  .showcase, .services, .pwa, .process, .contact, .pwachat, .related{padding-top:64px; padding-bottom:64px}
  .product{padding:104px 0 64px}
  .bubble, .chat__video{max-width:90%}
  .chat__body{padding:18px 16px}
  .sec-head{margin-bottom:32px}
  .applist{grid-template-columns:1fr}
  .steps4{grid-template-columns:1fr}
  .contact__box{padding:28px 20px}
  .contact__grid{gap:28px}
  .form{padding:20px}
  .foot__row{flex-direction:column; align-items:flex-start; gap:18px}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *{transition-duration:.01ms !important}
}