*,*::before,*::after{box-sizing:border-box}
:root{
  --bg:#ffffff; --bg-subtle:#f7f7f8; --surface:#ffffff; --surface-2:#fafafa;
  --border:#e8e8eb; --border-strong:#d8d8dd;
  --text:#0a0a0b; --text-muted:#585860; --text-faint:#6f6f78;
  --accent:#0a0a0b; --accent-contrast:#ffffff; --accent-hover:#2a2a2e;
  --ring:rgba(10,10,11,.30);
  --online:#22a565;
  --shadow-sm:0 1px 2px rgba(10,10,11,.06),0 1px 1px rgba(10,10,11,.04);
  --shadow-md:0 10px 30px rgba(10,10,11,.09),0 3px 8px rgba(10,10,11,.05);
  --shadow-lg:0 30px 70px rgba(10,10,11,.16),0 10px 26px rgba(10,10,11,.08);
  --radius:16px; --radius-sm:10px; --radius-lg:26px; --radius-pill:999px;
  --maxw:1160px;
  --font:'Geist',-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Helvetica,Arial,sans-serif;
  --ph-a:#e2e2e7; --ph-b:#f3f3f5;
}
[data-theme="dark"]{
  --bg:#0a0a0b; --bg-subtle:#0f0f11; --surface:#141417; --surface-2:#17171b;
  --border:#26262b; --border-strong:#34343b;
  --text:#f6f6f7; --text-muted:#a4a4ac; --text-faint:#78787f;
  --accent:#f6f6f7; --accent-contrast:#0a0a0b; --accent-hover:#e3e3e6;
  --ring:rgba(246,246,247,.40);
  --online:#31c07a;
  --shadow-sm:0 1px 2px rgba(0,0,0,.6);
  --shadow-md:0 12px 34px rgba(0,0,0,.55);
  --shadow-lg:0 34px 80px rgba(0,0,0,.65);
  --ph-a:#26262c; --ph-b:#1a1a1f;
}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;background:var(--bg);color:var(--text);font-family:var(--font);
  font-size:16px;line-height:1.6;font-weight:400;letter-spacing:-.011em;
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
  transition:background .3s ease,color .3s ease;overflow-x:hidden;
}
h1,h2,h3,h4{margin:0;font-weight:800;line-height:1.06;letter-spacing:-.03em}
p{margin:0}
a{color:inherit;text-decoration:none}
img,svg{display:block;max-width:100%}
ul{margin:0;padding:0;list-style:none}
button{font-family:inherit;cursor:pointer;border:none;background:none;color:inherit}
:focus-visible{outline:2px solid var(--ring);outline-offset:3px;border-radius:6px}
::selection{background:var(--text);color:var(--bg)}

.icon{width:1.25em;height:1.25em;stroke:currentColor;fill:none;stroke-width:1.85;stroke-linecap:round;stroke-linejoin:round;flex:none}
.icon--fill{fill:currentColor;stroke:none}

.wrap{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 24px}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12.5px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--text-muted)}
.eyebrow::before{content:"";width:22px;height:1.5px;background:var(--text-faint);border-radius:2px}

/* ---------- Buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;
  font-weight:600;font-size:15px;letter-spacing:-.01em;line-height:1;
  padding:13px 22px;border-radius:var(--radius-pill);white-space:nowrap;
  transition:transform .18s ease,background .2s ease,border-color .2s ease,box-shadow .2s ease,color .2s ease;
  border:1.5px solid transparent}
.btn .icon{width:18px;height:18px}
.btn--primary{background:var(--accent);color:var(--accent-contrast);box-shadow:var(--shadow-sm)}
.btn--primary:hover{background:var(--accent-hover);transform:translateY(-2px);box-shadow:var(--shadow-md)}
.btn--primary:active{transform:translateY(0)}
.btn--ghost{background:transparent;color:var(--text);border-color:var(--border-strong)}
.btn--ghost:hover{background:var(--surface-2);border-color:var(--text-faint);transform:translateY(-2px)}
.btn--lg{padding:16px 30px;font-size:16px}

/* ---------- Header ---------- */
.site-header{position:sticky;top:0;z-index:60;background:var(--bg);background:color-mix(in srgb,var(--bg) 82%,transparent);
  backdrop-filter:saturate(180%) blur(16px);-webkit-backdrop-filter:saturate(180%) blur(16px);
  border-bottom:1px solid transparent;transition:border-color .3s ease,background .3s ease}
.site-header.scrolled{border-bottom-color:var(--border)}
.nav{display:flex;align-items:center;gap:20px;height:68px}
.brand{display:inline-flex;align-items:center;gap:11px;font-weight:800;font-size:20px;letter-spacing:-.03em;flex:none}
.brand-mark{width:34px;height:34px;border-radius:11px;background:var(--accent);color:var(--accent-contrast);display:grid;place-items:center;box-shadow:var(--shadow-sm)}
.brand-mark .icon{width:19px;height:19px}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:14px}
.nav-links a{position:relative;font-size:14.5px;font-weight:500;color:var(--text-muted);padding:9px 13px;border-radius:9px;transition:color .18s ease,background .18s ease}
.nav-links a:hover{color:var(--text);background:var(--surface-2)}
.nav-spacer{flex:1}
.nav-actions{display:flex;align-items:center;gap:10px}
.nav-auth{display:flex;align-items:center;gap:10px}

/* ---------- Responsive utilities ---------- */
.desk-only{display:inline-flex}
.only-mobile{display:none}

/* ---------- Sections ---------- */
main{display:block}
.section{padding:96px 0}
.section-head{max-width:640px;margin:0 auto 56px;text-align:center}
.section-head .eyebrow{margin-bottom:18px}
.section-head h2{font-size:clamp(30px,4.6vw,46px)}
.section-head p{margin-top:18px;font-size:18px;color:var(--text-muted);line-height:1.55}
.alt{background:var(--bg-subtle)}

/* ---------- Hero ---------- */
.hero{position:relative;padding:64px 0 88px;overflow:hidden}
.hero-glow{position:absolute;inset:0;z-index:0;pointer-events:none;
  background:
    radial-gradient(680px 420px at 78% 8%,color-mix(in srgb,var(--text) 8%,transparent),transparent 70%),
    radial-gradient(760px 520px at 12% 92%,color-mix(in srgb,var(--text) 6%,transparent),transparent 72%);
  opacity:.9}
.hero-copy{position:relative;z-index:1;max-width:760px;margin:0 auto;text-align:center}
.badge-live{display:inline-flex;align-items:center;gap:9px;padding:7px 14px 7px 11px;border-radius:var(--radius-pill);
  background:var(--surface);border:1.5px solid var(--border);font-size:13px;font-weight:600;color:var(--text-muted);box-shadow:var(--shadow-sm)}
.badge-live .dot{width:8px;height:8px;border-radius:50%;background:var(--online);box-shadow:0 0 0 4px color-mix(in srgb,var(--online) 22%,transparent)}
.hero h1{font-size:clamp(38px,6vw,66px);margin:24px 0 0;letter-spacing:-.04em}
.hero h1 .muted{color:var(--text-faint)}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;
  clip:rect(0,0,0,0);white-space:nowrap;border:0}
/* rotating headline + caret */
.rot-line{display:block;min-height:1.06em}
.caret{display:none}
html.js .rot-line.on .caret{display:inline-block;width:.055em;min-width:2px;height:.82em;
  margin-left:.07em;vertical-align:-.06em;background:currentColor;border-radius:1px;
  animation:caret 1.06s steps(1,end) infinite}
html.js .rot-line.on.is-typing .caret{animation:none;opacity:1}
@keyframes caret{0%,49%{opacity:1}50%,100%{opacity:0}}
.hero-sub{margin:22px auto 0;font-size:19px;line-height:1.55;color:var(--text-muted);max-width:620px}
.hero-cta{margin-top:34px;display:flex;gap:12px;flex-wrap:wrap;align-items:center;justify-content:center}
.hero-note{margin-top:22px;display:flex;align-items:center;justify-content:center;gap:14px;flex-wrap:wrap;font-size:13.5px;color:var(--text-faint);font-weight:500}
.avatar-stack{display:flex}
.avatar-stack .av{width:30px;height:30px;border-radius:50%;border:2px solid var(--bg);margin-left:-9px;background-size:cover;font-size:12px;font-weight:700;color:#fff;display:grid;place-items:center}
.avatar-stack .av:first-child{margin-left:0}
.hero-note .sep{width:4px;height:4px;border-radius:50%;background:var(--border-strong)}
@keyframes floaty{0%,100%{transform:translateY(0)}50%{transform:translateY(-11px)}}

/* ---------- Features grid ---------- */
.features-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.feature{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:28px 26px;
  transition:transform .22s ease,border-color .22s ease,box-shadow .22s ease}
.feature:hover{transform:translateY(-4px);border-color:var(--border-strong);box-shadow:var(--shadow-md)}
.feature .f-ico{width:50px;height:50px;border-radius:14px;background:var(--accent);color:var(--accent-contrast);display:grid;place-items:center;margin-bottom:20px;box-shadow:var(--shadow-sm)}
.feature .f-ico .icon{width:24px;height:24px}
.feature h3{font-size:19px;margin-bottom:9px;letter-spacing:-.02em}
.feature p{color:var(--text-muted);font-size:14.5px;line-height:1.55}

/* ---------- Benefits ---------- */
.benefits-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.benefit{padding:28px 26px;border-radius:var(--radius);border:1px solid var(--border);background:var(--surface);
  display:grid;grid-template-columns:auto 1fr;column-gap:18px;align-items:start}
.benefit .b-ico{grid-column:1;grid-row:1/3;width:44px;height:44px;border-radius:13px;display:grid;place-items:center;border:1.5px solid var(--border-strong);color:var(--text)}
.benefit .b-ico .icon{width:22px;height:22px}
.benefit h3{grid-column:2;grid-row:1;font-size:17px;margin-bottom:8px}
.benefit p{grid-column:2;grid-row:2;font-size:14px;color:var(--text-muted);line-height:1.55}

/* ---------- Communities ---------- */
.comm-grid{display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:center}
.comm-copy h3{font-size:clamp(26px,3.4vw,38px);margin-bottom:18px}
.comm-copy p{color:var(--text-muted);font-size:17px;line-height:1.55;margin-bottom:26px}
.chips{display:flex;flex-wrap:wrap;gap:11px}
.chip{display:inline-flex;align-items:center;gap:9px;padding:10px 17px;border-radius:var(--radius-pill);
  border:1.5px solid var(--border);background:var(--surface);font-size:14px;font-weight:600;
  transition:transform .18s ease,border-color .18s ease,background .18s ease}
.chip:hover{transform:translateY(-2px);border-color:var(--text-faint)}
.chip .c-dot{width:8px;height:8px;border-radius:50%;background:var(--text)}
.comm-visual{min-width:0}

/* ---------- Security ---------- */
.sec-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}
.sec-card{text-align:left;padding:30px 28px;border-radius:var(--radius);background:var(--surface);border:1px solid var(--border);
  transition:transform .22s ease,box-shadow .22s ease;
  display:grid;grid-template-columns:auto 1fr;column-gap:20px;align-items:start}
.sec-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md)}
.sec-card .s-ico{grid-column:1;grid-row:1/3;width:50px;height:50px;border-radius:50%;background:var(--surface-2);border:1.5px solid var(--border);display:grid;place-items:center;color:var(--text)}
.sec-card .s-ico .icon{width:24px;height:24px}
.sec-card h3{grid-column:2;grid-row:1;font-size:17px;margin-bottom:9px}
.sec-card p{grid-column:2;grid-row:2;font-size:14px;color:var(--text-muted);line-height:1.55}

/* ---------- CTA band ---------- */
.cta-band{position:relative;overflow:hidden;background:var(--accent);color:var(--accent-contrast);
  border-radius:var(--radius-lg);padding:74px 40px;text-align:center;box-shadow:var(--shadow-lg)}
.cta-band::before{content:"";position:absolute;inset:0;opacity:.5;
  background:radial-gradient(520px 300px at 20% 0%,color-mix(in srgb,var(--accent-contrast) 10%,transparent),transparent 70%),
            radial-gradient(520px 300px at 85% 100%,color-mix(in srgb,var(--accent-contrast) 8%,transparent),transparent 70%)}
.cta-band .inner{position:relative;z-index:1;max-width:600px;margin:0 auto}
.cta-band h2{font-size:clamp(30px,4.6vw,48px);letter-spacing:-.035em}
.cta-band p{margin-top:18px;font-size:18px;opacity:.78;line-height:1.5}
.cta-band .btn--primary{background:var(--accent-contrast);color:var(--accent)}
.cta-band .btn--primary:hover{background:color-mix(in srgb,var(--accent-contrast) 88%,var(--accent))}
.cta-band .btn--ghost{border-color:color-mix(in srgb,var(--accent-contrast) 34%,transparent);color:var(--accent-contrast)}
.cta-band .btn--ghost:hover{background:color-mix(in srgb,var(--accent-contrast) 12%,transparent)}
.cta-actions{margin-top:34px;display:flex;gap:13px;justify-content:center;flex-wrap:wrap}

/* ---------- Footer ---------- */
.site-footer{border-top:1px solid var(--border);padding:70px 0 34px;background:var(--bg)}
.foot-top{display:grid;grid-template-columns:1.5fr repeat(4,1fr);gap:40px;margin-bottom:52px}
.foot-brand .brand{margin-bottom:16px}
.foot-brand p{color:var(--text-muted);font-size:14.5px;max-width:280px;line-height:1.6;margin-bottom:22px}
.stores{display:flex;gap:11px;flex-wrap:wrap}
.store-btn{display:inline-flex;align-items:center;gap:10px;padding:9px 15px;border-radius:12px;border:1.5px solid var(--border);background:var(--surface);transition:border-color .18s ease,transform .18s ease}
.store-btn:hover{border-color:var(--text-faint);transform:translateY(-2px)}
.store-btn .icon{width:22px;height:22px}
.store-btn .st-txt small{display:block;font-size:9.5px;color:var(--text-faint);font-weight:600;line-height:1.2}
.store-btn .st-txt b{font-size:13.5px;font-weight:700;line-height:1.2}
.foot-col h4{font-size:12px;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--text-faint);margin-bottom:18px}
.foot-col a{display:block;font-size:14.5px;color:var(--text-muted);font-weight:500;padding:6px 0;transition:color .16s ease}
.foot-col a:hover{color:var(--text)}
.foot-bottom{border-top:1px solid var(--border);padding-top:28px;display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap}
.foot-bottom .copy{font-size:13.5px;color:var(--text-faint);font-weight:500}
.socials{display:flex;gap:9px}
.socials a{width:38px;height:38px;border-radius:11px;border:1.5px solid var(--border);display:grid;place-items:center;color:var(--text-muted);transition:color .18s ease,border-color .18s ease,transform .18s ease}
.socials a:hover{color:var(--text);border-color:var(--text-faint);transform:translateY(-2px)}
.socials a .icon{width:19px;height:19px}

/* ---------- Reveal ---------- */
.reveal{}
html.js .reveal{opacity:0;transform:translateY(14px);transition:opacity .4s cubic-bezier(.16,.7,.3,1),transform .4s cubic-bezier(.16,.7,.3,1)}
html.js .reveal.is-visible{opacity:1;transform:none}
html.js .reveal.d1{transition-delay:.04s}
html.js .reveal.d2{transition-delay:.08s}
html.js .reveal.d3{transition-delay:.12s}

/* hero entrance (pure CSS, no JS dependency) */
@keyframes fadeUp{from{opacity:0;transform:translateY(12px)}to{opacity:1;transform:none}}
@keyframes scaleIn{from{opacity:0;transform:translateY(14px) scale(.985)}to{opacity:1;transform:none}}
html.js .hero-copy>*{animation:fadeUp .42s both cubic-bezier(.16,.7,.3,1)}
html.js .hero-copy>*:nth-child(1){animation-delay:.01s}
html.js .hero-copy>*:nth-child(2){animation-delay:.05s}
html.js .hero-copy>*:nth-child(3){animation-delay:.09s}
html.js .hero-copy>*:nth-child(4){animation-delay:.13s}
html.js .hero-copy>*:nth-child(5){animation-delay:.17s}

/* ---------- Chat demo (live group chat) ---------- */
.chat-demo{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-lg)}
.chat-head{display:flex;align-items:center;gap:12px;padding:14px 16px;border-bottom:1px solid var(--border);background:var(--surface-2)}
.ch-ava{width:42px;height:42px;border-radius:13px;flex:none;display:grid;place-items:center;background:linear-gradient(135deg,#2f343e,#5b616c);color:#fff}
.ch-ava .icon{width:21px;height:21px}
.ch-meta{flex:1;min-width:0;line-height:1.3}
.ch-meta b{display:block;font-size:14.5px;font-weight:700;letter-spacing:-.01em}
.ch-meta small{display:flex;align-items:center;gap:6px;font-size:11.5px;color:var(--text-faint);font-weight:500}
.live-dot{width:6px;height:6px;border-radius:50%;background:var(--online);flex:none}
.ch-more{width:18px;height:18px;color:var(--text-faint);flex:none}
.chat-feed{height:352px;padding:16px;display:flex;flex-direction:column;justify-content:flex-end;gap:10px;overflow:hidden}
.msg{display:flex;gap:8px;align-items:flex-end;animation:msgIn .3s cubic-bezier(.16,.7,.3,1) both}
@keyframes msgIn{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}
.msg.out{flex-direction:row-reverse}
.m-ava{width:26px;height:26px;border-radius:50%;flex:none;display:grid;place-items:center;color:#fff;font-size:10.5px;font-weight:700}
.m-body{max-width:78%;min-width:0}
.m-name{font-size:10.5px;color:var(--text-faint);font-weight:600;margin:0 0 3px 3px}
.m-bub{padding:9px 12px;border-radius:14px;border-bottom-left-radius:4px;font-size:13px;line-height:1.45;
  background:var(--bg-subtle);border:1px solid var(--border);color:var(--text)}
.msg.out .m-bub{background:var(--accent);color:var(--accent-contrast);border-color:transparent;
  border-bottom-left-radius:14px;border-bottom-right-radius:4px}
.m-code{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:10.5px;line-height:1.6;
  white-space:pre;overflow-x:auto;background:var(--bg);border:1px solid var(--border-strong);
  border-radius:12px;border-bottom-left-radius:4px;padding:10px 12px;color:var(--text-muted)}
.m-code b{color:var(--text);font-weight:700}
.typing{display:flex;gap:4px;align-items:center;padding:12px 13px}
.typing i{width:5px;height:5px;border-radius:50%;background:var(--text-faint);animation:blink 1.2s infinite}
.typing i:nth-child(2){animation-delay:.16s}
.typing i:nth-child(3){animation-delay:.32s}
@keyframes blink{0%,60%,100%{opacity:.3;transform:translateY(0)}30%{opacity:1;transform:translateY(-2px)}}
.chat-composer{display:flex;align-items:center;gap:10px;padding:12px 14px;border-top:1px solid var(--border);background:var(--surface-2)}
.cc-input{flex:1;font-size:12.5px;color:var(--text-faint);background:var(--bg);border:1px solid var(--border);border-radius:var(--radius-pill);padding:9px 14px}
.cc-send{width:34px;height:34px;border-radius:50%;flex:none;background:var(--accent);color:var(--accent-contrast);display:grid;place-items:center}
.cc-send .icon{width:16px;height:16px}

/* ---------- Brand marquee ---------- */
.brands{padding:56px 0 60px;border-bottom:1px solid var(--border);background:var(--bg)}
.brands-eyebrow{text-align:center;font-size:12px;font-weight:700;letter-spacing:.14em;
  text-transform:uppercase;color:var(--text-faint);margin-bottom:34px}
.marquee{position:relative;overflow:hidden;
  -webkit-mask-image:linear-gradient(90deg,transparent 0,#000 9%,#000 91%,transparent 100%);
  mask-image:linear-gradient(90deg,transparent 0,#000 9%,#000 91%,transparent 100%)}
.mq-track{display:flex;width:max-content;animation:mq 64s linear infinite;will-change:transform}
.marquee:hover .mq-track,.marquee:focus-within .mq-track{animation-play-state:paused}
.mq-set{display:flex;align-items:center;flex:none}
@keyframes mq{from{transform:translate3d(0,0,0)}to{transform:translate3d(-50%,0,0)}}
.mq-item{display:inline-flex;align-items:center;gap:11px;padding:0 30px;flex:none;white-space:nowrap;
  font-size:18px;font-weight:700;letter-spacing:-.02em;color:var(--text-muted);opacity:.62;
  transition:opacity .2s ease,color .2s ease}
.mq-item:hover{opacity:1;color:var(--text)}
.mq-mark{width:19px;height:19px;flex:none;fill:none;stroke:currentColor;stroke-width:1.7;
  stroke-linecap:round;stroke-linejoin:round}
.av-a{background:linear-gradient(135deg,#3f4550,#6b7280)}
.av-b{background:linear-gradient(135deg,#575d68,#868c97)}
.av-c{background:linear-gradient(135deg,#2f343e,#585e69)}
.av-d{background:linear-gradient(135deg,#6a707b,#9ba1ac)}
.av-e{background:linear-gradient(135deg,#4a505b,#787e89)}

/* ---------- Responsive ---------- */

@media (max-width:1080px){
}
@media (max-width:960px){
  .nav-links{display:none}
  .nav-auth{display:none}
  .only-mobile{display:inline-flex}
  .desk-only{display:none}
  .hero-copy{max-width:100%}
  .comm-grid{grid-template-columns:1fr;gap:36px}
}
@media (max-width:820px){
  .section{padding:76px 0}
  .features-grid{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:600px){
  .wrap{padding:0 18px}
  .section{padding:62px 0}
  .section-head{margin-bottom:40px}
  .hero{padding:40px 0 60px}
  .features-grid{grid-template-columns:1fr}
  .benefits-grid{grid-template-columns:1fr}
  .sec-grid{grid-template-columns:1fr}
  .foot-top{grid-template-columns:repeat(3,1fr);gap:30px 14px;margin-bottom:40px}
  .foot-brand{grid-column:1/-1}
  .foot-col h4{font-size:12px;letter-spacing:.08em;margin-bottom:14px}
  .foot-col a{font-size:14.5px;padding:6px 0;overflow-wrap:break-word}
  .cta-band{padding:56px 24px}
  .hero-note .sep{display:none}
  .hero-note{gap:10px 12px}
  .btn--lg{padding:15px 24px}
  .brands{padding:44px 0 46px}
  .mq-item{font-size:16px;padding:0 22px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important;scroll-behavior:auto!important}
  html.js .reveal{opacity:1!important;transform:none!important}
  html.js .hero-copy>*{animation:none!important;opacity:1!important;transform:none!important}
  .mq-track{animation:none!important}
  .marquee{overflow-x:auto}
  html.js .caret{display:none}
}