@import url('https://fonts.googleapis.com/css2?family=DM+Sans:wght@400;500;600;700&family=Space+Grotesk:wght@400;500;600;700&display=swap');
:root{color-scheme:dark;--bg:#080a0b;--panel:#111416;--line:#252b2d;--text:#f3f5f4;--muted:#98a1a2;--lime:#d7ff65;--sidebar:252px}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--text);font-family:'DM Sans',Arial,sans-serif;font-size:14px}button,input{font:inherit}a{color:inherit;text-decoration:none}button{cursor:pointer}.app{min-height:100vh;display:flex}.sidebar{width:var(--sidebar);position:fixed;inset:0 auto 0 0;background:#0d1011;border-right:1px solid var(--line);display:flex;flex-direction:column;padding:30px 19px;z-index:10}.brand{display:flex;align-items:center;gap:13px;padding:2px 8px 34px}.brand img{width:42px;height:42px;object-fit:cover;border-radius:12px}.brand strong{font-family:'Space Grotesk',sans-serif;font-size:23px;letter-spacing:.16em;display:block;line-height:1}.brand small{font-size:9px;letter-spacing:.2em;color:var(--muted);display:block;margin-top:7px}.side-label,.kicker{font-size:10px;letter-spacing:.19em;color:#a7b0af;font-weight:700}.side-label{padding:12px 15px}.side-nav{display:grid;gap:5px}.nav-link{display:flex;align-items:center;gap:13px;padding:13px 15px;border-radius:10px;color:#a9b1b1;transition:.2s}.nav-link:hover,.nav-link.active{background:#1d2223;color:white}.nav-link.active{box-shadow:inset 3px 0 0 var(--lime)}.nav-icon{font-size:21px;width:24px;text-align:center}.side-bottom{margin-top:auto}.side-status{display:flex;gap:10px;align-items:flex-start;padding:16px 11px;border-top:1px solid var(--line);font-size:12px}.side-status small{display:block;color:var(--muted);margin-top:4px}.pulse{display:inline-block;flex-shrink:0;width:7px;height:7px;background:var(--lime);border-radius:50%;box-shadow:0 0 12px #d7ff6580}.side-status .pulse{margin-top:4px}.social{display:block;border:1px solid #384042;border-radius:9px;padding:13px;text-align:center;font-weight:700;font-size:12px}.social:hover{border-color:var(--lime)}.main{margin-left:var(--sidebar);width:calc(100% - var(--sidebar));min-height:100vh;display:flex;flex-direction:column}.topbar{height:75px;display:flex;align-items:center;justify-content:space-between;padding:0 clamp(24px,5vw,70px);border-bottom:1px solid var(--line);background:#0b0e0fdc}.breadcrumb{font-size:11px;font-weight:700;letter-spacing:.13em}.breadcrumb span{color:#626b6d;margin:0 10px}.top-actions{display:flex;align-items:center;gap:25px}.prototype-badge{font-size:10px;letter-spacing:.11em;color:#b8c0be;display:flex;gap:9px;align-items:center}.top-social{font-weight:700;font-size:12px}.content{width:100%;max-width:1600px;margin:0 auto;padding:34px clamp(24px,5vw,70px) 70px;flex:1}.hero{height:min(690px,calc(100svh - 145px));min-height:510px;position:relative;overflow:hidden;border:1px solid #353b3b;border-radius:18px;background:linear-gradient(90deg,#080a0bef 0%,#080a0bd4 37%,#080a0b44 75%),url('nexa-background.png') center center / cover no-repeat;display:flex;flex-direction:column;justify-content:center;padding:clamp(28px,5vw,75px)}.hero:after{content:'';pointer-events:none;position:absolute;inset:0;background:linear-gradient(0deg,#07090990,transparent 35%)}.hero-copy,.hero-foot{position:relative;z-index:1}.hero-copy{max-width:650px}.pill{border:1px solid #a5b1a24f;background:#0a0c0c9c;border-radius:100px;display:inline-flex;gap:11px;align-items:center;padding:10px 15px;font-size:10px;letter-spacing:.15em;font-weight:700}.hero h1,.page-title h1{font-family:'Space Grotesk',sans-serif;letter-spacing:-.07em;line-height:.99;font-weight:600}.hero h1{font-size:clamp(56px,6.5vw,108px);margin:28px 0}.hero h1 em{font-style:normal;color:var(--lime)}.hero-copy>p{color:#d0d6d4;font-size:clamp(15px,1.5vw,18px);line-height:1.7;max-width:490px}.actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:28px}.button{display:inline-flex;align-items:center;justify-content:center;gap:24px;padding:14px 19px;border-radius:9px;font-weight:700;font-size:12px;border:1px solid #535d5c;transition:transform .2s,border-color .2s}.button:hover{transform:translateY(-2px)}.button.primary{background:var(--lime);color:#0b1007;border-color:var(--lime)}.button.ghost{background:#131819c9;color:#f2f5f3}.button.ghost:hover{border-color:var(--lime)}.button.small{padding:10px 13px}.hero-foot{position:absolute;bottom:25px;left:clamp(28px,5vw,75px);right:clamp(28px,5vw,75px);display:flex;justify-content:space-between;font-size:10px;letter-spacing:.16em;color:#d4dbd9}.section-intro{display:flex;align-items:end;justify-content:space-between;gap:24px;margin:60px 0 25px}.section-intro h2,.panel h2{font-family:'Space Grotesk',sans-serif;font-size:clamp(26px,3vw,38px);letter-spacing:-.05em;margin:13px 0 0}.section-intro>p{color:var(--muted);max-width:380px;line-height:1.7;margin:0}.feature-grid{display:grid;grid-template-columns:1.3fr 1fr 1fr;gap:14px}.feature{min-height:270px;border:1px solid var(--line);background:linear-gradient(140deg,#181d1e,#101314);border-radius:14px;padding:27px;display:flex;flex-direction:column;transition:.2s}.feature:hover{border-color:#809345;transform:translateY(-3px)}.feature-wide{background:linear-gradient(130deg,#202724,#101413)}.feature-icon{font-size:30px;color:var(--lime)}.feature-number{margin-top:30px;font-size:10px;letter-spacing:.16em;color:var(--muted)}.feature h3{font:600 27px 'Space Grotesk',sans-serif;letter-spacing:-.04em;margin:11px 0}.feature p{color:#b3bdbc;line-height:1.6;margin:0 0 20px}.feature-link{margin-top:auto;font-weight:700;font-size:12px}.notice{margin-top:25px;padding:18px 22px;border:1px solid #323b34;border-radius:12px;background:#121914;display:flex;gap:20px;align-items:flex-start}.notice strong{color:var(--lime);white-space:nowrap}.notice span{color:#b8c4bd;line-height:1.6}.footer{display:flex;justify-content:space-between;gap:20px;padding:24px clamp(24px,5vw,70px);border-top:1px solid var(--line);color:#758081;font-size:10px;letter-spacing:.1em}.page-title{padding:35px 0 30px}.page-title h1{font-size:clamp(50px,6vw,85px);margin:18px 0}.dot{color:var(--lime)}.page-title p{font-size:16px;color:var(--muted);line-height:1.6;max-width:620px}.chat-shell,.panel{background:#101415;border:1px solid var(--line);border-radius:15px}.chat-shell{height:min(700px,calc(100svh - 300px));min-height:480px;display:flex;flex-direction:column;overflow:hidden}.chat-top{display:flex;align-items:center;gap:12px;padding:17px 22px;border-bottom:1px solid var(--line)}.agent-avatar{width:39px;height:39px;border-radius:12px;background:#d7ff65;color:#111;font-size:25px;display:grid;place-items:center}.chat-top strong,.chat-top small{display:block}.chat-top small{font-size:11px;color:var(--muted);margin-top:3px}.demo-tag{margin-left:auto;font-size:9px;letter-spacing:.1em;border:1px solid #445044;border-radius:5px;color:var(--lime);padding:7px}.messages{padding:26px;overflow-y:auto;flex:1;display:flex;flex-direction:column;gap:15px}.message{max-width:78%;padding:14px 17px;border:1px solid #2a3232;border-radius:13px;line-height:1.65;white-space:pre-wrap}.message.bot{align-self:flex-start;background:#1b2222}.message.user{align-self:flex-end;background:#2d3821;border-color:#3e5030}.message-label{font-size:10px;letter-spacing:.08em;color:#b1c18b;margin-bottom:6px}.suggestions{padding:0 20px 12px;display:flex;gap:8px;flex-wrap:wrap}.suggestions button{border:1px solid #364041;background:#192020;color:#c7d0ce;padding:9px 11px;border-radius:100px;font-size:11px}.suggestions button:hover{border-color:var(--lime)}.chat-form{display:flex;gap:10px;padding:13px 18px;border-top:1px solid var(--line)}.chat-form input,.settings-form input{background:#1c2223;border:1px solid #394142;border-radius:9px;color:white;outline:0;padding:14px 16px;min-width:0}.chat-form input{flex:1}.chat-form input:focus,.settings-form input:focus{border-color:var(--lime)}.chat-form button{width:48px;background:var(--lime);color:#0b0d0c;border:0;border-radius:9px;font-size:24px}.chat-disclaimer{font-size:10px;color:#83908c;text-align:center;margin:0 0 12px}.agents-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:15px}.agent-card{border:1px solid var(--line);border-radius:14px;background:#141819;padding:25px;display:flex;flex-direction:column;min-height:320px}.agent-card .agent-mark{font-size:33px;color:var(--lime)}.agent-card h2{font:600 25px 'Space Grotesk',sans-serif;letter-spacing:-.04em;margin:25px 0 8px}.agent-card p{color:var(--muted);line-height:1.65}.agent-bottom{margin-top:auto;display:flex;justify-content:space-between;align-items:center;gap:8px}.agent-bottom span{font-size:11px;color:#b5bfbd}.toggle{border:1px solid #4c5956;background:#252d2b;border-radius:100px;width:52px;height:30px;padding:4px;display:flex;align-items:center}.toggle:before{content:'';height:20px;width:20px;background:#929d9a;border-radius:50%;transition:.2s}.toggle[aria-pressed=true]{background:#bce65b}.toggle[aria-pressed=true]:before{background:#17200b;transform:translateX(21px)}.panel{padding:28px}.panel-head{display:flex;justify-content:space-between;align-items:center;gap:12px}.panel-head h2{font-size:26px}.activity-list{margin-top:25px}.activity-row{display:flex;gap:18px;align-items:center;padding:18px 0;border-top:1px solid var(--line)}.activity-icon{color:var(--lime);font-size:22px}.activity-row strong{font-weight:600}.activity-row small{display:block;color:var(--muted);margin-top:5px}.empty-state{padding:60px 15px;text-align:center;color:var(--muted);line-height:1.8}.settings-grid{display:grid;grid-template-columns:1fr 1fr;gap:15px}.settings-form{display:flex;flex-direction:column;gap:12px;margin-top:30px}.settings-form label{font-size:12px;color:#b9c2c0}.settings-form .button{align-self:start;margin-top:10px}.muted{color:var(--muted);line-height:1.7}.form-feedback{font-size:12px;color:var(--lime);display:block;margin-top:12px}.mobile-nav{display:none}@media(max-width:1100px){:root{--sidebar:215px}.feature-grid{grid-template-columns:1fr 1fr}.feature-wide{grid-column:span 2}.agents-grid{grid-template-columns:1fr 1fr}}@media(max-width:760px){.sidebar{display:none}.main{margin-left:0;width:100%}.topbar{height:62px;padding:0 18px}.content{padding:16px 15px 95px}.top-actions{gap:12px}.prototype-badge{font-size:9px}.breadcrumb{font-size:10px}.hero{height:calc(100svh - 160px);min-height:480px;border-radius:12px;padding:27px;background-image:linear-gradient(180deg,#080a0b94 0%,#080a0bc2 42%,#080a0bf2 100%),url('nexa-background.png');background-position:55% center;background-size:cover}.hero h1{font-size:clamp(51px,12vw,76px)}.hero-copy>p{font-size:14px}.hero-foot{left:27px;right:27px;bottom:18px;font-size:8px;gap:10px}.hero-foot span:last-child{text-align:right}.section-intro{display:block;margin-top:40px}.section-intro>p{margin-top:15px}.feature-grid,.agents-grid,.settings-grid{grid-template-columns:1fr}.feature-wide{grid-column:auto}.feature{min-height:235px}.notice{display:block}.notice span{display:block;margin-top:8px}.page-title{padding:23px 0 19px}.page-title h1{font-size:58px}.page-title p{font-size:14px}.chat-shell{height:calc(100svh - 290px);min-height:440px}.messages{padding:14px}.message{max-width:92%}.suggestions{padding:0 12px 9px}.suggestions button{font-size:10px}.panel{padding:20px}.panel-head{align-items:flex-start}.footer{padding:20px 16px 90px;display:block;line-height:2}.footer span{display:block}.mobile-nav{display:flex;position:fixed;bottom:0;left:0;right:0;height:69px;z-index:20;background:#0d1112f5;backdrop-filter:blur(18px);border-top:1px solid #313b3b;justify-content:space-around;padding-bottom:env(safe-area-inset-bottom)}.mobile-nav a{flex:1;text-align:center;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;color:#8d9997}.mobile-nav a.active{color:var(--lime)}.mobile-nav a>span{font-size:23px}.mobile-nav small{font-size:9px}.chat-disclaimer{padding:0 10px}.demo-tag{font-size:8px}}@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}}

/* NEXA mobile refinement v1.1 */
html{-webkit-text-size-adjust:100%;text-size-adjust:100%}body{overflow-x:hidden}img{max-width:100%}a,button{-webkit-tap-highlight-color:transparent}
@media(max-width:760px){
  .topbar{height:64px;padding:0 18px}.top-social{font-size:13px}.prototype-badge{letter-spacing:.04em}
  .content{padding:14px 14px calc(110px + env(safe-area-inset-bottom))}
  .hero{height:auto;min-height:calc(100svh - 155px);padding:30px 22px 68px;border-radius:14px;background-position:52% center;isolation:isolate}
  .hero h1{font-size:clamp(43px,11vw,70px);line-height:1.04;margin:24px 0;letter-spacing:-.065em}
  .hero-copy>p{font-size:16px;line-height:1.65;max-width:35ch}
  .pill{font-size:9px;letter-spacing:.07em;padding:9px 12px}
  .actions{gap:10px;margin-top:26px}.button{min-height:46px;font-size:13px;padding:13px 16px;gap:12px}
  .hero-foot{left:22px;right:22px;bottom:22px;font-size:8px;letter-spacing:.08em}
  .section-intro{margin:38px 0 22px}.section-intro h2{font-size:31px}.section-intro>p{font-size:14px;line-height:1.65}
  .feature-grid,.agents-grid,.settings-grid{gap:12px}.feature{min-height:215px;padding:23px}.feature h3{font-size:26px}.feature p{font-size:14px}
  .notice{padding:17px}.notice span{font-size:13px}
  .page-title h1{font-size:clamp(43px,11vw,65px);line-height:1.06;overflow-wrap:anywhere}.page-title p{font-size:15px}
  .chat-shell{height:calc(100svh - 250px);min-height:390px}.chat-top{padding:13px}.messages{padding:12px}.message{font-size:14px;max-width:94%}
  .chat-form{padding:10px}.chat-form input{font-size:16px;padding:12px}.chat-form button{flex:0 0 46px}
  .agent-card{min-height:270px}.panel{padding:19px}.panel-head{flex-wrap:wrap}
  .mobile-nav{height:calc(68px + env(safe-area-inset-bottom));padding-bottom:env(safe-area-inset-bottom)}
  .mobile-nav a{min-width:0;gap:3px}.mobile-nav a>span{font-size:24px}.mobile-nav small{font-size:10px}
  .footer{padding-bottom:calc(94px + env(safe-area-inset-bottom))}
}
@media(max-width:380px){.hero h1{font-size:42px}.top-actions{gap:8px}.breadcrumb{letter-spacing:.03em}.actions .button{font-size:12px}.hero-foot{font-size:7px}.mobile-nav small{font-size:9px}}

/* Chat v1.2 controls */
.clear-chat{margin-left:auto;border:1px solid #46504d;background:#171c1c;color:#e1e9e5;border-radius:8px;padding:10px 13px;font-size:12px;font-weight:700;white-space:nowrap}.clear-chat:hover,.clear-chat:focus-visible{border-color:var(--lime);color:var(--lime)}.chat-top>div:nth-child(2){min-width:0}.chat-top small{line-height:1.4}@media(max-width:760px){.clear-chat{font-size:11px;padding:9px 10px}.chat-top{gap:9px}.agent-avatar{flex-shrink:0}}