@font-face{font-family:"Plus Jakarta Sans";font-weight:400;font-display:swap;src:url(fonts/PlusJakartaSans-Regular.ttf) format("truetype")}
@font-face{font-family:"Plus Jakarta Sans";font-weight:700;font-display:swap;src:url(fonts/PlusJakartaSans-Bold.ttf) format("truetype")}
@font-face{font-family:"Plus Jakarta Sans";font-weight:800;font-display:swap;src:url(fonts/PlusJakartaSans-ExtraBold.ttf) format("truetype")}
:root{color-scheme:light dark;--bg:#F3F2F9;--card:#FFFFFF;--ink:#18162C;--soft:#6C6987;--accent:#4F46E5;--border:#E4E1F1;--on:#FFFFFF;--tint:#ECEAFB;--paper:#FBFAFF;--rule:rgba(79,70,229,.07);--marker:#FBBF24;--shadow:0 26px 60px -24px rgba(36,31,115,.42)}
@media (prefers-color-scheme:dark){:root{--bg:#100F22;--card:#1B1A31;--ink:#F5F4FB;--soft:#A6A3BE;--accent:#8B85F5;--border:#2C2A45;--on:#100F22;--tint:#26244A;--paper:#15142A;--rule:rgba(139,133,245,.08);--shadow:0 26px 60px -24px rgba(0,0,0,.7)}}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:84px}
body{margin:0;background:var(--bg);color:var(--ink);font-family:"Plus Jakarta Sans",-apple-system,BlinkMacSystemFont,"Segoe UI","Hiragino Sans","PingFang SC","Noto Sans CJK SC","Helvetica Neue",Arial,sans-serif;font-size:17px;line-height:1.6}
.wrap{max-width:820px;margin:0 auto;padding:24px 20px 56px}
a{color:var(--accent)}
.top{position:sticky;top:0;z-index:20;background:color-mix(in srgb,var(--bg) 82%,transparent);-webkit-backdrop-filter:blur(14px) saturate(1.4);backdrop-filter:blur(14px) saturate(1.4);border-bottom:1px solid var(--border)}
nav{max-width:1180px;margin:0 auto;padding:12px 20px;display:flex;gap:4px 22px;flex-wrap:wrap;align-items:center;font-weight:700;font-size:15px}
nav a{color:var(--ink);text-decoration:none}nav a:hover,nav a[aria-current]{color:var(--accent)}
nav .brand{margin-right:auto;font-size:21px;font-weight:800;display:flex;align-items:center;gap:10px}
nav .brand img{width:34px;height:34px;border-radius:9px}
nav .get{background:var(--accent);color:var(--on);padding:8px 18px;border-radius:999px}
nav .get:hover{color:var(--on);filter:brightness(1.08)}
.langs{position:relative}
.langs summary{cursor:pointer;list-style:none;color:var(--soft);font-weight:700;font-size:15px;padding:4px 0}
.langs summary::-webkit-details-marker{display:none}
.langs summary::after{content:" ▾"}
.langs ul{position:absolute;right:0;top:100%;z-index:5;margin:6px 0 0;padding:6px;list-style:none;background:var(--card);border:1px solid var(--border);border-radius:14px;min-width:170px;box-shadow:0 10px 30px rgba(24,22,44,.18)}
.langs li a{display:block;padding:7px 12px;border-radius:9px;font-weight:600}
.langs li a:hover,.langs li a[aria-current]{background:var(--tint);color:var(--accent)}
@media (max-width:760px){nav .hide-s{display:none}.langs ul{right:auto;left:0}}
h1{font-size:clamp(30px,6.6vw,46px);line-height:1.12;margin:0 0 14px;font-weight:800;letter-spacing:-.015em;text-wrap:balance}
h2{font-size:20px;font-weight:800;margin:34px 0 8px}
p,li{color:var(--ink)}p{margin:0 0 14px}ul{padding-left:22px;margin:0 0 14px}li{margin-bottom:6px}
.lead{font-size:19px;color:var(--soft);margin:0 0 26px;max-width:640px}
.updated{font-size:13px;font-weight:700;color:var(--soft);margin:0 0 26px}
.callout,.card,details.q{background:var(--card);border:1px solid var(--border);border-radius:18px}
.callout{padding:18px 20px;margin:0 0 24px}.callout strong{color:var(--accent)}
.btns{display:flex;gap:12px;flex-wrap:wrap;margin:0 0 30px}
.btn{display:inline-block;padding:14px 28px;border-radius:999px;background:var(--accent);color:var(--on);font-weight:800;text-decoration:none}
.btn.ghost{background:transparent;color:inherit;border:1.5px solid currentColor;opacity:.92}
.note{font-size:14px;color:var(--soft)}
.faq h3{font-size:16px;font-weight:800;margin:22px 0 6px}.faq p{margin:0 0 10px}
footer{margin-top:46px;color:var(--soft);font-size:13px;display:flex;gap:6px 18px;flex-wrap:wrap}footer a{color:var(--soft)}
.pick{display:grid;gap:12px;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));margin:24px 0}
.pick a{display:block;padding:16px 18px;border-radius:16px;background:var(--card);border:1px solid var(--border);color:var(--ink);text-decoration:none;font-weight:700}
.pick a:hover{border-color:var(--accent);color:var(--accent)}.pick small{display:block;color:var(--soft);font-weight:600;font-size:13px}

/* the landing page */
.inner{max-width:1180px;margin:0 auto;padding:0 20px}
.hero{position:relative;overflow:hidden;color:#fff;background:radial-gradient(900px 520px at 85% 0%,#7C3AED 0%,transparent 60%),radial-gradient(700px 500px at 0% 100%,#2B2A8F 0%,transparent 65%),#17124F}
.hero::before{content:"";position:absolute;inset:0;background:repeating-linear-gradient(to bottom,transparent 0 35px,rgba(255,255,255,.055) 35px 36px);-webkit-mask-image:linear-gradient(to bottom,#000,transparent 92%);mask-image:linear-gradient(to bottom,#000,transparent 92%);pointer-events:none}
.hero::after{content:"";position:absolute;left:max(18px,calc(50% - 590px));top:0;bottom:0;width:2px;background:rgba(244,114,182,.35)}
.hero .inner{position:relative;display:grid;grid-template-columns:minmax(0,.95fr) minmax(0,1.05fr);gap:44px;align-items:center;padding-top:56px;padding-bottom:70px}
.hero h1{font-size:clamp(34px,5vw,60px);line-height:1.04;letter-spacing:-.025em;margin:0 0 20px;color:#fff}
.tag{display:inline-block;margin:0 0 20px;padding:7px 14px;border-radius:999px;background:rgba(255,255,255,.14);color:#fff;font-weight:800;font-size:13px;box-shadow:inset 0 0 0 1px rgba(255,255,255,.22)}
.hero .lead{color:rgba(255,255,255,.82);font-size:19px;max-width:30em;margin:0 0 30px}
.hero .btn{background:#fff;color:#241E8E}
.hero .btn.ghost{background:transparent;color:#fff}
.hero .btns{margin-bottom:24px}
.facts{display:flex;gap:6px 20px;flex-wrap:wrap;color:rgba(255,255,255,.8);font-size:14px;font-weight:700;margin:0;padding:0;list-style:none}
.facts li{margin:0;color:inherit}.facts li::before{content:"✓ ";color:var(--marker);font-weight:800}
.stage{position:relative;padding-bottom:12%}
.stage .tablet{width:92%;margin-left:auto;transform:rotate(1.5deg)}
.stage .phone{position:absolute;left:0;bottom:0;width:31%;transform:rotate(-3deg)}
.dev{position:relative;background:#0B0920;box-shadow:0 30px 70px -22px rgba(0,0,0,.65),inset 0 0 0 1.5px rgba(255,255,255,.14)}
.dev .screen{position:relative;overflow:hidden;background:#000}
.dev img{display:block;width:100%;height:100%;object-fit:cover}
.phone{padding:9px;border-radius:12% / 5.6%}.phone .screen{aspect-ratio:1320/2868;border-radius:10% / 4.6%}
.tablet{padding:12px;border-radius:30px}.tablet .screen{aspect-ratio:2752/2064;border-radius:19px}
.strip{background:var(--paper);border-bottom:1px solid var(--border)}
.strip .inner{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px;padding-top:30px;padding-bottom:30px}
.strip b{display:block;font-size:clamp(34px,4.4vw,52px);line-height:1;font-weight:800;letter-spacing:-.03em;color:var(--accent)}
.strip span{display:block;color:var(--soft);font-weight:700;font-size:14px;margin-top:6px;line-height:1.35}
.page{max-width:1180px;margin:0 auto;padding:0 20px 56px}
.band{padding-top:92px}
.eyebrow{display:inline-block;margin:0 0 12px;font-size:12.5px;font-weight:800;letter-spacing:.12em;text-transform:uppercase;color:var(--accent)}
.sec-title{font-size:clamp(28px,4vw,44px);line-height:1.1;font-weight:800;letter-spacing:-.025em;margin:0 0 14px;text-wrap:balance}
.sec-title mark{background:linear-gradient(transparent 60%,color-mix(in srgb,var(--marker) 70%,transparent) 60%);color:inherit;padding:0 .08em}
.sec-lead{color:var(--soft);margin:0 0 30px;max-width:38em;font-size:18px}
.tabs{display:inline-flex;gap:4px;padding:4px;border-radius:999px;background:var(--card);border:1px solid var(--border);margin:0 14px 26px 0;flex-wrap:wrap}
.tabs button{font:inherit;font-weight:800;font-size:15px;padding:9px 20px;border-radius:999px;border:0;background:transparent;color:var(--soft);cursor:pointer}
.tabs button[aria-selected=true]{background:var(--accent);color:var(--on)}
.devsw{display:inline-flex}
.case{display:none;grid-template-columns:minmax(0,1fr) minmax(0,1.1fr);gap:54px;align-items:center}
.case.on{display:grid}
.steps{list-style:none;margin:0;padding:0;display:grid;gap:10px}
.steps li{margin:0}
.steps button{font:inherit;text-align:left;width:100%;display:flex;gap:14px;align-items:flex-start;padding:17px 20px;border-radius:20px;border:1px solid var(--border);background:var(--card);color:var(--ink);cursor:pointer;position:relative;overflow:hidden;transition:border-color .2s,box-shadow .2s}
.steps .n{flex:none;width:32px;height:32px;border-radius:50%;display:grid;place-items:center;font-weight:800;font-size:14px;background:var(--tint);color:var(--accent)}
.steps b{display:block;font-size:17.5px;line-height:1.3}
.steps .t{display:block;color:var(--soft);font-size:15px;line-height:1.5;max-height:0;opacity:0;overflow:hidden;transition:max-height .3s,opacity .3s,margin .3s}
.steps button[aria-current=step]{border-color:var(--accent);box-shadow:0 12px 30px -18px var(--accent)}
.steps button[aria-current=step] .n{background:var(--accent);color:var(--on)}
.steps button[aria-current=step] .t{max-height:8em;opacity:1;margin-top:4px}
.steps i{position:absolute;left:0;bottom:0;height:3px;width:0;background:var(--accent);opacity:.6}
.steps .run i{animation:fill var(--dur,4.2s) linear forwards}
@keyframes fill{to{width:100%}}
.view{justify-self:center;width:100%}
.view .phone{max-width:300px;margin:0 auto}
.view .tablet{max-width:660px;margin:0 auto}
.demo[data-dev=phone] .tablet,.demo[data-dev=tablet] .phone{display:none}
.view img{position:absolute;inset:0;opacity:0;transition:opacity .45s}
.view img.on{opacity:1}
.demo-ctl{margin-top:16px;font:inherit;font-weight:800;font-size:13px;color:var(--soft);background:none;border:0;cursor:pointer;padding:6px 0}
.feat-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.grp{position:relative;background:var(--card);border:1px solid var(--border);border-radius:26px;padding:26px 24px 10px;overflow:hidden}
.grp::after{content:"";position:absolute;top:0;right:0;width:46px;height:46px;background:linear-gradient(225deg,var(--c) 50%,transparent 50%);border-top-right-radius:26px;opacity:.9}
.grp h3{margin:0 0 16px;font-size:13px;letter-spacing:.12em;text-transform:uppercase;color:var(--c);font-weight:800;padding-right:34px}
.grp ul{list-style:none;margin:0;padding:0}
.grp li{display:flex;gap:14px;padding:15px 0;margin:0;border-top:1px solid var(--border)}
.grp li:first-child{border-top:0;padding-top:0}
.ico{flex:none;width:42px;height:42px;border-radius:13px;display:grid;place-items:center;background:var(--tint);background:color-mix(in srgb,var(--c) 14%,transparent)}
.ico svg{width:22px;height:22px;fill:none;stroke:var(--c);stroke-width:1.9;stroke-linecap:round;stroke-linejoin:round}
.grp b{display:block;font-size:16.5px;line-height:1.3}
.grp p{margin:3px 0 0;color:var(--soft);font-size:14.5px;line-height:1.45}
.grp .how{display:block;margin-top:7px;font-size:13px;line-height:1.45;color:var(--ink);background:color-mix(in srgb,var(--c) 9%,transparent);border-radius:10px;padding:7px 10px}
.grp .how em{font-style:normal;font-weight:800;color:var(--c);margin-right:6px;text-transform:uppercase;letter-spacing:.06em;font-size:11px}
.ipad{margin-top:92px;color:#fff;border-radius:34px;overflow:hidden;position:relative;background:radial-gradient(700px 420px at 100% 0%,#7C3AED 0%,transparent 60%),#17124F}
.ipad .in{position:relative;display:grid;grid-template-columns:minmax(0,.85fr) minmax(0,1.15fr);gap:44px;align-items:center;padding:clamp(30px,5vw,60px)}
.ipad h2{font-size:clamp(28px,4vw,44px);line-height:1.08;letter-spacing:-.025em;margin:0 0 14px;color:#fff}
.ipad p{color:rgba(255,255,255,.82)}
.ipad ul{list-style:none;padding:0;margin:22px 0 0;display:grid;gap:12px}
.ipad li{display:flex;gap:12px;align-items:flex-start;margin:0;color:#fff;font-weight:700}
.ipad li svg{flex:none;width:24px;height:24px;margin-top:1px;fill:none;stroke:var(--marker);stroke-width:2.4;stroke-linecap:round;stroke-linejoin:round}
.ipad .tablet{max-width:none}
.langs-sec{padding-top:92px}
.pills{display:flex;flex-wrap:wrap;gap:8px;margin:0;padding:0;list-style:none}
.pills li{margin:0}
.pills a{display:block;padding:8px 16px;border-radius:999px;background:var(--card);border:1px solid var(--border);color:var(--ink);text-decoration:none;font-weight:700;font-size:14.5px}
.pills a:hover,.pills a[aria-current]{border-color:var(--accent);color:var(--accent);background:var(--tint)}
.cta{margin:92px 0 28px;border-radius:34px;padding:clamp(34px,6vw,64px);background:radial-gradient(600px 300px at 100% 0%,#A855F7 0%,transparent 60%),linear-gradient(135deg,#4F46E5,#3B2FB0);color:#fff;display:flex;gap:24px;align-items:center;justify-content:space-between;flex-wrap:wrap}
.cta h2{margin:0 0 6px;color:#fff;font-size:clamp(26px,3.6vw,40px);line-height:1.1;font-weight:800;letter-spacing:-.02em}
.cta p{margin:0;color:rgba(255,255,255,.88)}
.cta .btn{background:#fff;color:#2A2380}
@media (max-width:1000px){.feat-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:860px){
  .hero .inner{grid-template-columns:1fr;gap:34px;padding-top:36px;padding-bottom:48px}
  .stage{max-width:520px;margin:0 auto;width:100%}
  .strip .inner{grid-template-columns:repeat(2,minmax(0,1fr))}
  .case.on{grid-template-columns:1fr;gap:28px}.case .view{order:-1}
  .ipad .in{grid-template-columns:1fr}
  .band,.ipad,.langs-sec{margin-top:0}.band{padding-top:64px}.ipad{margin-top:64px}.langs-sec{padding-top:64px}.cta{margin-top:64px}
}
@media (max-width:640px){.feat-grid{grid-template-columns:1fr}.hero::after{display:none}}
@media (prefers-reduced-motion:reduce){.steps i{display:none}.view img{transition:none}html{scroll-behavior:auto}}