:root{
  --bg:#121314; --bg2:#1a1c1e; --card:#1f2124; --line:#2e3135;
  --tx:#ecebe6; --mute:#a3a29c; --acc:#f2c230; --acc-ink:#161616;
  --fd:'Clash Display',system-ui,sans-serif; --fb:'Satoshi',system-ui,sans-serif;
  --r:14px; --max:1160px;
}
*{box-sizing:border-box;margin:0}
html{scroll-behavior:smooth;scroll-padding-top:72px}
body{background:var(--bg);color:var(--tx);font:400 1rem/1.6 var(--fb);-webkit-font-smoothing:antialiased;overflow-x:hidden}
img{max-width:100%;display:block}
a{color:inherit}
.wrap{width:min(var(--max),100% - 40px);margin-inline:auto}
.narrow{max-width:720px}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}
.skip{position:absolute;left:-999px;top:8px;background:var(--acc);color:var(--acc-ink);padding:8px 12px;border-radius:8px;z-index:99}
.skip:focus{left:8px}
:focus-visible{outline:2px solid var(--acc);outline-offset:3px}

.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;background:var(--acc);color:var(--acc-ink);border:0;border-radius:999px;padding:14px 22px;font:700 .95rem var(--fb);cursor:pointer;text-decoration:none;transition:transform .15s,filter .15s;white-space:nowrap}
.btn:hover{filter:brightness(1.08)}
.btn:active{transform:translateY(1px)}
.btn-sm{padding:9px 16px;font-size:.875rem}

.nav{position:fixed;inset:0 0 auto;z-index:20;background:rgba(18,19,20,.78);backdrop-filter:blur(12px);border-bottom:1px solid rgba(255,255,255,.06)}
.nav-in{display:flex;align-items:center;justify-content:space-between;height:64px}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;font:600 1.2rem var(--fd);letter-spacing:.01em;color:var(--acc)}
.brand span{color:var(--tx)}
.nav nav{display:flex;align-items:center;gap:26px;font-size:.9rem}
.nav nav a:not(.btn){text-decoration:none;color:var(--mute)}
.nav nav a:not(.btn):hover{color:var(--tx)}

.hero{position:relative;min-height:min(92vh,860px);display:flex;align-items:flex-end;padding:120px 0 80px;isolation:isolate}
.hero-img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:-2}
.hero-shade{position:absolute;inset:0;z-index:-1;background:linear-gradient(90deg,rgba(18,19,20,.92) 0%,rgba(18,19,20,.65) 45%,rgba(18,19,20,.1) 100%),linear-gradient(0deg,var(--bg) 0%,transparent 35%)}
.tag{display:inline-flex;align-items:center;gap:10px;font-size:.8rem;letter-spacing:.08em;text-transform:uppercase;color:var(--mute);border:1px solid var(--line);background:rgba(18,19,20,.5);padding:6px 12px;border-radius:999px}
.dot{width:8px;height:8px;border-radius:50%;background:var(--acc);box-shadow:0 0 0 4px rgba(242,194,48,.18)}
h1{font:600 clamp(3rem,8vw,6.5rem)/.95 var(--fd);letter-spacing:-.02em;margin:22px 0 20px}
.lead{max-width:520px;font-size:1.1rem;color:#d6d5cf}

.signup{display:flex;flex-wrap:wrap;gap:10px;margin-top:30px;max-width:520px}
.signup input,.signup select{flex:1 1 240px;min-width:0;background:rgba(255,255,255,.06);border:1px solid var(--line);color:var(--tx);border-radius:999px;padding:14px 20px;font:inherit}
.signup select{appearance:none;cursor:pointer}
.signup select option{background:var(--bg2)}
.signup input::placeholder{color:#8a8983}
.signup input:focus,.signup select:focus{border-color:var(--acc);outline:none}
.form-msg{flex-basis:100%;font-size:.9rem;min-height:1.4em;color:var(--mute)}
.form-msg.ok{color:var(--acc)} .form-msg.err{color:#ff8a7a}
.signup.big{flex-direction:column;max-width:none;margin-inline:auto}
.signup.big input,.signup.big select{flex:none;width:100%}
.signup.big .btn{width:100%}

.section{padding:110px 0}
.eyebrow{font-size:.8rem;letter-spacing:.12em;text-transform:uppercase;color:var(--acc);margin-bottom:14px;font-weight:700}
h2{font:600 clamp(1.8rem,3.6vw,2.8rem)/1.08 var(--fd);letter-spacing:-.01em;max-width:760px;margin-bottom:40px}
h3{font:700 1.15rem/1.3 var(--fb);margin-bottom:8px}
.muted{color:var(--mute)}
.cards{display:grid;gap:18px}
.three{grid-template-columns:repeat(3,1fr)}
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:28px}
.card p{color:var(--mute)}
.num{display:block;font:600 .85rem var(--fd);color:var(--acc);margin-bottom:28px}
.note{margin-top:26px;color:var(--mute)}

.split{background:var(--bg2);border-block:1px solid var(--line)}
.split-in{display:grid;grid-template-columns:1.1fr 1fr;gap:60px;align-items:center}
.split-in img{border-radius:var(--r);aspect-ratio:4/3;object-fit:cover;width:100%}
.split-in h2{margin-bottom:20px}
.split-in p+p{margin-top:14px}

.wide-img{border-radius:var(--r);width:100%;aspect-ratio:16/7;object-fit:cover;margin-bottom:26px}
.tabs{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:18px}
.tabs button{background:transparent;color:var(--mute);border:1px solid var(--line);border-radius:999px;padding:10px 18px;font:500 .9rem var(--fb);cursor:pointer}
.tabs button[aria-selected=true]{background:var(--acc);color:var(--acc-ink);border-color:var(--acc);font-weight:700}
.tab-panel{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:26px 28px;max-width:720px}
.tab-panel p{color:var(--mute)}

details{border-bottom:1px solid var(--line);padding:20px 0}
summary{cursor:pointer;font-weight:700;font-size:1.05rem;list-style:none;display:flex;justify-content:space-between;gap:20px}
summary::-webkit-details-marker{display:none}
summary::after{content:"+";color:var(--acc);font-size:1.4rem;line-height:1}
details[open] summary::after{content:"−"}
details p{color:var(--mute);margin-top:10px;max-width:62ch}

.join{text-align:center}
.join h2{margin-inline:auto;margin-bottom:12px}
.join>.wrap>p{color:var(--mute)}
.join .signup{max-width:460px}

.foot{border-top:1px solid var(--line);padding:30px 0 100px;font-size:.85rem}
.foot-in{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap}
.foot a{color:var(--acc)}

/* chat */
.chat-fab{position:fixed;right:20px;bottom:20px;z-index:30;background:var(--acc);color:var(--acc-ink);border:0;border-radius:999px;padding:14px 20px;font:700 .95rem var(--fb);cursor:pointer;box-shadow:0 10px 30px rgba(0,0,0,.45)}
.chat-fab::before{content:"";display:inline-block;width:9px;height:9px;border-radius:50%;background:var(--acc-ink);margin-right:9px;vertical-align:1px}
.chat{position:fixed;right:20px;bottom:84px;z-index:31;width:min(380px,calc(100vw - 24px));height:min(560px,calc(100vh - 110px));display:flex;flex-direction:column;background:var(--bg2);border:1px solid var(--line);border-radius:18px;box-shadow:0 20px 60px rgba(0,0,0,.55);overflow:hidden}
.chat[hidden]{display:none}
.chat-head{display:flex;justify-content:space-between;align-items:center;padding:14px 16px;border-bottom:1px solid var(--line)}
.chat-x{background:none;border:0;color:var(--mute);font-size:1.5rem;cursor:pointer;line-height:1;padding:0 4px}
.chat-log{flex:1;overflow-y:auto;padding:16px;display:flex;flex-direction:column;gap:10px}
.msg{max-width:86%;padding:10px 14px;border-radius:14px;font-size:.92rem;line-height:1.5}
.msg.bot{background:var(--card);border:1px solid var(--line);align-self:flex-start;border-bottom-left-radius:4px}
.msg.me{background:var(--acc);color:var(--acc-ink);align-self:flex-end;border-bottom-right-radius:4px}
.msg a{color:var(--acc)}
.chat-chips{display:flex;flex-wrap:wrap;gap:6px;padding:0 16px 10px}
.chat-chips button{background:transparent;border:1px solid var(--line);color:var(--tx);border-radius:999px;padding:6px 12px;font:500 .8rem var(--fb);cursor:pointer}
.chat-chips button:hover{border-color:var(--acc)}
.chat-form{display:flex;gap:8px;padding:12px;border-top:1px solid var(--line)}
.chat-form input{flex:1;min-width:0;background:rgba(255,255,255,.06);border:1px solid var(--line);color:var(--tx);border-radius:999px;padding:10px 14px;font:inherit;font-size:.9rem}
.chat-form input:focus{outline:none;border-color:var(--acc)}

@media (max-width:860px){
  .nav nav a:not(.btn){display:none}
  .three{grid-template-columns:1fr}
  .split-in{grid-template-columns:1fr;gap:30px}
  .section{padding:76px 0}
  .hero{padding:100px 0 56px;min-height:88vh}
  .hero-shade{background:linear-gradient(0deg,var(--bg) 8%,rgba(18,19,20,.78) 55%,rgba(18,19,20,.35) 100%)}
  .wide-img{aspect-ratio:16/9}
  .chat{right:12px;bottom:78px}
  .chat-fab{right:12px;bottom:14px}
}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important}}