:root{--bg:#070b16;--bg2:#0b1222;--card:#0f182c;--line:rgba(255,255,255,.08);--fg:#eef2fa;--mute:#8d99b3;--a:#2fd3c6;--b:#3b82f6;--c:#8fb8ff;--grad:linear-gradient(100deg,#2fd3c6 0%,#3b82f6 55%,#8fb8ff 100%);--r:18px;--ease:cubic-bezier(.22,.8,.24,1)}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{background:var(--bg);color:var(--fg);font-family:"Segoe UI","Helvetica Neue",Helvetica,Arial,sans-serif;line-height:1.6;-webkit-font-smoothing:antialiased;overflow-x:hidden}
a{color:inherit;text-decoration:none}img{display:block;max-width:100%}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
svg{width:1.15em;height:1.15em;flex:none}
.wrap{width:min(1440px,100% - 48px);margin:0 auto}
h1,h2,h3{letter-spacing:-.02em;line-height:1.12;font-weight:700}
h1{font-size:clamp(2.4rem,5.4vw,5rem)}h2{font-size:clamp(1.9rem,3.6vw,3.2rem)}h3{font-size:1.25rem}
.grad{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.uline{position:relative;display:inline-block;padding-bottom:.08em}
.uline::after{content:"";position:absolute;left:0;bottom:-.04em;height:.09em;width:100%;background:var(--grad);border-radius:4px;transform:scaleX(0);transform-origin:left;transition:transform 1.1s var(--ease) .3s}
.in .uline::after,.hero .uline::after{transform:scaleX(1)}
.eyebrow{display:inline-block;font-size:.78rem;letter-spacing:.22em;text-transform:uppercase;color:var(--a);font-weight:600;margin-bottom:18px}
.lead{font-size:clamp(1.05rem,1.5vw,1.3rem);color:#d6deee;max-width:720px}
.fine{font-size:.82rem;color:var(--mute);margin-top:18px}
.center{text-align:center;margin-top:56px}

/* buttons + breathe */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;background:var(--grad);color:#04121a;font-weight:700;border-radius:999px;padding:14px 28px;transition:transform .35s var(--ease),filter .35s;letter-spacing:.01em;white-space:nowrap}
.btn svg{width:20px;height:20px}
.btn:hover{transform:translateY(-2px);filter:brightness(1.08)}
.btn-lg{padding:18px 36px;font-size:1.05rem}.btn-sm{padding:10px 20px;font-size:.9rem}
.breathe{animation:breathe 2.8s ease-in-out infinite}
@keyframes breathe{0%,100%{transform:scale(1);opacity:1}50%{transform:scale(1.045);opacity:.9}}
.breathe:hover{animation-play-state:paused}

/* nav */
.nav{position:fixed;inset:0 0 auto;z-index:50;transition:background .4s,border-color .4s,backdrop-filter .4s;border-bottom:1px solid transparent}
.nav.solid{background:rgba(7,11,22,.78);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-color:var(--line)}
.nav-in{display:flex;align-items:center;justify-content:space-between;height:76px}
.logo{display:flex;align-items:center;gap:10px;font-size:1.3rem;font-weight:600}.logo b{font-weight:800;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.logo-mark{display:grid;place-items:center;width:34px;height:34px;border-radius:10px;background:var(--grad);color:#04121a}.logo-mark svg{width:20px;height:20px}
.nav-links{display:flex;gap:36px;font-size:.95rem;color:#c4cde0}.nav-links a{transition:color .3s}.nav-links a:hover{color:#fff}

/* hero */
.hero{position:relative;min-height:100vh;min-height:100svh;display:flex;align-items:center;padding:120px 0 80px;overflow:hidden}
.hero-bg{position:absolute;inset:0;background:url(images/hero.jpg) center right/cover no-repeat;transform:scale(1.06);animation:zoom 14s var(--ease) forwards}
.hero-bg::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,var(--bg) 0%,rgba(7,11,22,.88) 38%,rgba(7,11,22,.25) 75%,rgba(7,11,22,.4)),linear-gradient(0deg,var(--bg) 0%,transparent 30%)}
@keyframes zoom{to{transform:scale(1)}}
.hero-in{position:relative;max-width:1440px}
.hero-in>*{animation:up 1s var(--ease) both}.hero-in>*:nth-child(2){animation-delay:.1s}.hero-in>*:nth-child(3){animation-delay:.2s}.hero-in>*:nth-child(4){animation-delay:.3s}.hero-in>*:nth-child(5){animation-delay:.4s}.hero-in>*:nth-child(6){animation-delay:.5s}
@keyframes up{from{opacity:0;transform:translateY(28px)}}
.hero h1{margin-bottom:24px;max-width:900px}
.hero .sub{color:var(--mute);max-width:620px;margin-top:14px}
.hero-cta{margin:36px 0 34px}
.ticks{list-style:none;display:flex;flex-wrap:wrap;gap:14px 30px;font-size:.95rem;color:#d6deee}
.ticks li{display:flex;align-items:center;gap:8px}.ticks svg{color:var(--a)}

/* sections */
.sec{padding:clamp(80px,10vw,140px) 0}
.sec-alt{background:var(--bg2);border-block:1px solid var(--line)}
.head{max-width:820px;margin:0 auto 56px;text-align:center}
.head p{color:var(--mute);margin-top:18px;font-size:1.05rem}
.head-row{display:flex;justify-content:space-between;align-items:flex-end;max-width:none;text-align:left}
.reveal{opacity:0;transform:translateY(36px);transition:opacity .9s var(--ease),transform .9s var(--ease)}
.reveal.in{opacity:1;transform:none}
img.lazy{opacity:0;transition:opacity .8s ease,transform 1.2s var(--ease)}img.loaded{opacity:1}

/* tabs */
.tab-bar{display:flex;gap:8px;justify-content:center;flex-wrap:wrap;margin-bottom:36px}
.tab{display:inline-flex;align-items:center;gap:8px;padding:11px 22px;border-radius:999px;border:1px solid var(--line);color:var(--mute);font-size:.95rem;transition:all .4s var(--ease)}
.tab:hover{color:#fff;border-color:rgba(255,255,255,.2)}
.tab.active{background:var(--grad);color:#04121a;border-color:transparent;font-weight:600}
.panels{position:relative;display:grid}
.panel{grid-area:1/1;opacity:0;visibility:hidden;transform:translateY(16px);transition:opacity .6s var(--ease),transform .6s var(--ease),visibility .6s}
.panel.active{opacity:1;visibility:visible;transform:none}
#categories .panel{display:grid;grid-template-columns:1.5fr 1fr;gap:0;background:var(--card);border:1px solid var(--line);border-radius:28px;overflow:hidden}
.panel-img{aspect-ratio:3/2;overflow:hidden;background:#0c1426}.panel-img img{width:100%;height:100%;object-fit:cover}
.panel.active .panel-img img{transform:scale(1.03)}
.panel-txt{padding:clamp(28px,4vw,64px);display:flex;flex-direction:column;justify-content:center}
.panel-txt h3{font-size:clamp(1.6rem,2.4vw,2.2rem);margin:10px 0 16px}.panel-txt p{color:var(--mute);font-size:1.05rem}
.num{font-size:.85rem;letter-spacing:.2em;color:var(--a);font-weight:600}

/* swiper */
.swiper{overflow:hidden;touch-action:pan-y;cursor:grab}.swiper:active{cursor:grabbing}
.sw-track{display:flex;gap:24px;transition:transform .7s var(--ease);will-change:transform}
.card{flex:0 0 calc((100% - 72px)/4);position:relative;border-radius:var(--r);overflow:hidden;aspect-ratio:3/4;background:var(--card);user-select:none}
.card img{width:100%;height:100%;object-fit:cover;pointer-events:none}
.card:hover img{transform:scale(1.06)}
.card::after{content:"";position:absolute;inset:0;background:linear-gradient(0deg,rgba(7,11,22,.95) 0%,transparent 55%)}
.card-txt{position:absolute;left:22px;right:22px;bottom:22px;z-index:1}
.card-txt span{font-weight:700;font-size:1.15rem}.card-txt p{color:#b9c3d8;font-size:.9rem;margin-top:4px}
.sw-nav{display:flex;gap:10px}
.sw-btn{width:52px;height:52px;border-radius:50%;display:grid;place-items:center;border:1px solid var(--line);background:var(--card);transition:background .3s}
.sw-btn:hover{background:#17233d}
.sw-dots{display:flex;gap:8px;justify-content:center;margin-top:28px}
.sw-dots button{width:8px;height:8px;border-radius:8px;background:rgba(255,255,255,.2);transition:all .4s var(--ease)}
.sw-dots button.active{width:28px;background:var(--a)}

/* features */
.feats{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.feat{position:relative;padding:40px 36px;background:var(--card);border:1px solid var(--line);border-radius:22px;transition:transform .5s var(--ease),border-color .5s}
.feat:hover{transform:translateY(-6px);border-color:rgba(47,211,198,.35)}
.feat .num{position:absolute;top:36px;right:36px;color:var(--mute)}
.ic{width:56px;height:56px;border-radius:16px;display:grid;place-items:center;background:rgba(47,211,198,.1);color:var(--a);margin-bottom:26px}.ic svg{width:26px;height:26px}
.feat h3{margin-bottom:10px}.feat p{color:var(--mute)}

/* devices */
.dev{display:grid;grid-template-columns:1fr 1.25fr;gap:72px;align-items:center}
.dev h2{margin-bottom:36px}
.dev-bar{justify-content:flex-start;margin-bottom:24px}
.dpanel{padding:26px 28px;background:var(--card);border:1px solid var(--line);border-radius:18px}
.dpanel h3{margin-bottom:8px}.dpanel p{color:var(--mute)}
.dtabs{margin-bottom:36px}
.dev-img{border-radius:24px;overflow:hidden;background:#0c1426;aspect-ratio:1600/912}
.dev-img img{width:100%;height:100%;object-fit:cover}

/* steps */
.steps{position:relative;display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.step{padding:40px 36px;border-radius:22px;background:var(--card);border:1px solid var(--line);transition:border-color .6s,transform .6s var(--ease)}
.step.active{border-color:rgba(47,211,198,.5);transform:translateY(-6px)}
.step-n{width:52px;height:52px;border-radius:50%;display:grid;place-items:center;font-weight:800;font-size:1.2rem;border:1px solid var(--line);margin-bottom:24px;transition:all .6s}
.step.active .step-n{background:var(--grad);color:#04121a;border-color:transparent}
.step h3{margin-bottom:10px}.step p{color:var(--mute)}
.step-bar{grid-column:1/-1;height:3px;background:var(--line);border-radius:3px;overflow:hidden}
.step-bar i{display:block;height:100%;width:33.33%;background:var(--grad);transition:width .8s var(--ease)}
.ready{font-size:1.4rem;font-weight:600;margin-bottom:20px}

/* faq */
.faq-wrap{max-width:960px}
.faq{display:grid;gap:12px}
.qa{background:var(--card);border:1px solid var(--line);border-radius:16px;overflow:hidden;transition:border-color .4s}
.qa[open]{border-color:rgba(47,211,198,.35)}
.qa summary{list-style:none;display:flex;justify-content:space-between;align-items:center;gap:20px;padding:22px 28px;font-weight:600;font-size:1.05rem;cursor:pointer}
.qa summary::-webkit-details-marker{display:none}
.qa summary svg{color:var(--a);transition:transform .4s var(--ease)}
.qa[open] summary svg{transform:rotate(45deg)}
.ans{padding:0 28px 24px;color:var(--mute)}

/* final */
.final{position:relative;padding:clamp(110px,14vw,200px) 0;overflow:hidden;text-align:center}
.final-bg{position:absolute;inset:0;background-size:cover;background-position:center;opacity:0;transition:opacity 1.2s}
.final-bg.loaded{opacity:1}
.final-bg::after{content:"";position:absolute;inset:0;background:rgba(7,11,22,.82)}
.final-in{position:relative;max-width:900px}
.final h2{font-size:clamp(2.2rem,4.6vw,4.2rem);margin-bottom:20px}
.final .lead{margin:0 auto 14px}.final p{color:var(--mute);margin-bottom:40px}

/* footer */
.foot{padding:64px 0 120px;border-top:1px solid var(--line);background:var(--bg)}
.foot-top{display:flex;justify-content:space-between;gap:40px;flex-wrap:wrap;margin-bottom:36px}
.foot-top p{color:var(--mute);margin-top:10px}
.foot-links{display:flex;flex-wrap:wrap;gap:12px 28px;max-width:640px;color:#c4cde0;font-size:.93rem}.foot-links a:hover{color:#fff}
.foot-note{color:var(--mute);font-size:.85rem;margin-top:8px}

/* sticky mobile */
.sticky{display:none}

@media (max-width:1100px){.feats{grid-template-columns:repeat(2,1fr)}.card{flex-basis:calc((100% - 48px)/3)}.dev{grid-template-columns:1fr;gap:48px}}
@media (max-width:760px){
  .wrap{width:calc(100% - 36px)}
  .nav-links,.nav .btn{display:none}.nav-in{height:64px}
  .hero{align-items:flex-end;padding:100px 0 56px}
  .hero-bg{background-position:65% center}
  .hero-bg::after{background:linear-gradient(0deg,var(--bg) 8%,rgba(7,11,22,.82) 55%,rgba(7,11,22,.35))}
  .hero-cta .btn{width:100%}
  .ticks{display:grid;grid-template-columns:1fr 1fr;gap:10px;font-size:.88rem}
  .tab-bar{flex-wrap:nowrap;overflow-x:auto;justify-content:flex-start;scrollbar-width:none;margin-inline:-18px;padding-inline:18px}.tab-bar::-webkit-scrollbar{display:none}
  .tab{flex:none}
  #categories .panel{grid-template-columns:1fr}
  .head-row{flex-direction:column;align-items:flex-start;gap:20px}
  .card{flex-basis:78%}
  .feats,.steps{grid-template-columns:1fr}
  .feat,.step{padding:30px 26px}
  .btn-lg{width:100%;padding:17px 24px}
  .sticky{display:flex;position:fixed;left:16px;right:16px;bottom:16px;z-index:60;padding:16px;opacity:0;pointer-events:none;translate:0 120%;transition:opacity .5s var(--ease),translate .5s var(--ease);box-shadow:0 12px 30px -8px rgba(0,0,0,.6)}
  .sticky.show{opacity:1;pointer-events:auto;translate:0 0}
}
@media (prefers-reduced-motion:reduce){*,*::before,*::after{animation:none!important;transition:none!important}.reveal,img.lazy{opacity:1;transform:none}}