:root{color-scheme:dark;--bg:#06111f;--panel:#091a2c;--panel2:#102740;--line:#193b59;--text:#eef8ff;--muted:#91abc5;--cyan:#20dfff;--blue:#168dff;--green:#32e69a;--danger:#ff6d8a}*{box-sizing:border-box}body{margin:0;background:radial-gradient(ellipse at 12% 0%,#123b62 0,transparent 32%),radial-gradient(ellipse at 90% 20%,#092e4a 0,transparent 30%),var(--bg);color:var(--text);font:14px/1.55 Inter,ui-sans-serif,system-ui,-apple-system,Segoe UI,sans-serif;min-height:100vh}.topbar{height:76px;border-bottom:1px solid #17334c;background:rgba(4,14,27,.92);backdrop-filter:blur(16px);display:flex;align-items:center;justify-content:space-between;padding:0 max(4vw,20px);position:sticky;top:0;z-index:5}.brand{display:flex;align-items:center;gap:10px;color:var(--text);font-size:20px;font-weight:850;text-decoration:none;letter-spacing:-.6px}.brand-mark{width:38px;height:38px;display:grid;place-items:center;border-radius:50%;background:linear-gradient(145deg,#13d8ff,#187aff);color:#041323;font-size:23px;box-shadow:0 0 28px #0cbfff40}.brand-dot{color:var(--cyan)}.brand small{display:block;color:#86a9c7;font-size:8px;letter-spacing:1.8px;font-weight:600;margin-top:-4px}.topbar nav{display:flex;gap:23px;align-items:center}.topbar nav a,.nav-button{color:#b6cce0;text-decoration:none;font:inherit;font-size:13px;background:none;border:0;cursor:pointer}.topbar nav a:hover,.nav-button:hover{color:var(--cyan)}.topbar nav .nav-cta{padding:9px 15px;border:1px solid #227da9;border-radius:10px;color:var(--cyan)}.inline{display:inline}.shell{max-width:1240px;margin:0 auto;padding:30px 22px 20px;min-height:calc(100vh - 76px);display:flex;flex-direction:column}.hero{display:grid;grid-template-columns:1fr .92fr;gap:46px;align-items:center;padding:40px 0 50px}.eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--cyan);font-size:10px;font-weight:850;letter-spacing:1.8px;text-transform:uppercase}.eyebrow:before{content:'';width:22px;height:1px;background:var(--cyan)}h1{font-size:clamp(38px,5.1vw,64px);line-height:1.04;letter-spacing:-2.7px;margin:17px 0 20px;max-width:640px}h1 em{font-style:normal;color:var(--cyan)}.lead{font-size:16px;color:var(--muted);max-width:560px}.actions{display:flex;gap:12px;flex-wrap:wrap;margin:28px 0}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:1px solid transparent;border-radius:10px;padding:12px 17px;background:linear-gradient(110deg,#168cff,#18d9ef);color:#031323;font-weight:800;text-decoration:none;cursor:pointer;font:inherit;font-weight:800;box-shadow:0 7px 25px #009fff19}.btn.secondary{background:#0d2136;border-color:#294a66;color:#d7eaff;box-shadow:none}.btn:hover{filter:brightness(1.1);transform:translateY(-1px)}.hero-card,.card,.auth-card{background:linear-gradient(145deg,#0d2339,#071626);border:1px solid #1a4262;border-radius:17px;box-shadow:0 20px 70px #0005}.hero-card{padding:21px;transform:none}.mock-head{display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line);padding-bottom:15px}.online{color:var(--green);font-size:11px}.chat-row{display:flex;gap:12px;align-items:center;padding:14px 0;border-bottom:1px solid #142e45}.avatar{width:42px;height:42px;flex-shrink:0;display:grid;place-items:center;border-radius:50%;background:linear-gradient(135deg,#2257a8,#35c9e8);color:white;font-weight:800}.chat-info{flex:1;min-width:0}.chat-info strong{display:block}.chat-info small{display:block;color:var(--muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.pill{font-size:10px;border:1px solid #24506a;border-radius:99px;padding:4px 8px;color:var(--cyan)}.message-demo{display:flex;justify-content:flex-end;padding:15px 0}.bubble{max-width:88%;background:linear-gradient(120deg,#1468e8,#08a9d0);padding:11px 14px;border-radius:15px 15px 4px 15px;font-size:13px}.bluetooth-banner{margin-top:6px;padding:13px;background:#082c40;border:1px solid #15536c;border-radius:12px;color:#9ceeff;font-size:12px;display:flex;align-items:center;gap:10px}.section-head{margin:16px 0 22px}.section-head h1{font-size:34px;letter-spacing:-1.1px;margin:5px 0}.section-head p{color:var(--muted);margin:0}.feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:15px;margin:8px 0 38px}.feature{padding:22px;border-radius:15px;background:linear-gradient(145deg,#0b1e31,#081727);border:1px solid #183852}.feature-icon{font-size:23px;color:var(--cyan)}.feature h3{margin:9px 0 5px}.feature p{color:var(--muted);font-size:13px;margin:0}.auth-wrap{display:grid;place-items:center;flex:1;padding:30px 0}.auth-card{width:min(100%,440px);padding:30px;background:linear-gradient(145deg,#0b2035,#061524)}.auth-card h1{font-size:30px;letter-spacing:-1.1px;margin:8px 0}.auth-card p{color:var(--muted)}.field{margin:16px 0}.field label{display:block;font-size:12px;color:#c2d5e7;margin-bottom:7px}.field input,.field textarea,.field select{width:100%;border:1px solid #254662;border-radius:10px;background:#071626;color:var(--text);padding:12px 13px;font:inherit;outline:none}.field input:focus,.field textarea:focus{border-color:var(--cyan);box-shadow:0 0 0 3px #54ddff1c}.btn.full{width:100%;margin-top:5px}.muted{color:var(--muted)}.card{padding:20px;margin:14px 0}.row{display:flex;align-items:center;justify-content:space-between;gap:16px}.list-item{padding:13px 0;border-bottom:1px solid var(--line);display:flex;justify-content:space-between;align-items:center;gap:14px}.list-item:last-child{border-bottom:0}.flash{padding:12px 15px;border-radius:10px;margin:0 0 18px;background:#102b3d;border:1px solid #24516b}.flash.error{border-color:#813c51;background:#351725}.flash.success{border-color:#1f695b;background:#0d302c}.footer{margin-top:auto;padding:30px 0 10px;display:flex;justify-content:space-between;gap:12px;color:#66809a;font-size:11px}.status-dot{display:inline-block;width:6px;height:6px;background:var(--green);border-radius:50%;margin-right:6px}.empty{padding:25px;text-align:center;color:var(--muted)}.tag{display:inline-block;border-radius:7px;background:#102e48;color:var(--cyan);font-size:11px;padding:4px 8px}.split{display:grid;grid-template-columns:1fr 1fr;gap:16px}.inline-form{display:flex;gap:8px;align-items:center}.inline-form input{min-width:0;flex:1}.small-btn{border-radius:8px;border:1px solid #2b5875;background:#112b42;color:var(--cyan);padding:8px 11px;cursor:pointer}.danger{color:var(--danger)}@media(max-width:760px){.topbar{padding:0 14px;height:66px}.topbar nav{gap:10px}.topbar nav a,.nav-button{font-size:12px}.brand{font-size:17px}.brand-mark{width:34px;height:34px}.hero{grid-template-columns:1fr;padding-top:20px;gap:22px}.hero-card{transform:none}.feature-grid{grid-template-columns:1fr}.split{grid-template-columns:1fr}.shell{padding:22px 14px}.footer{flex-direction:column}h1{letter-spacing:-1.6px}.auth-card{padding:22px}.topbar nav a:nth-child(3){display:none}}