:root{--ink:#14140F;--ink2:#4A4A42;--muted:#77776C;--paper:#F4F2EC;--card:#FFFFFF;--line:#DEDBD0;--lime:#D9F26B;--dark:#131209;--ease:cubic-bezier(0.22,1,0.36,1)}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:"Manrope",system-ui,sans-serif;background:var(--paper);color:var(--ink);font-size:16px;line-height:24px;-webkit-font-smoothing:antialiased;overflow-x:hidden}
a{color:inherit}
img,svg{display:block}
h1,h2,h3,h4{text-wrap:balance}
p{text-wrap:pretty}
/* text styles */
.heading-1{font-size:60px;line-height:60px;font-weight:600;letter-spacing:-0.035em}
.heading-2{font-size:48px;line-height:48px;font-weight:600;letter-spacing:-0.03em}
.heading-3{font-size:36px;line-height:40px;font-weight:600;letter-spacing:-0.025em}
.heading-5{font-size:24px;line-height:32px;font-weight:600;letter-spacing:-0.015em}
.heading-6{font-size:20px;line-height:28px;font-weight:600}
.title-1{font-size:20px;line-height:28px;font-weight:500}
.title-2{font-size:18px;line-height:28px;font-weight:500}
.title-3{font-size:16px;line-height:24px;font-weight:500}
.title-4{font-size:14px;line-height:20px;font-weight:500}
.body-3{font-size:16px;line-height:24px;font-weight:400}
.body-5{font-size:14px;line-height:20px;font-weight:500}
.body-6{font-size:14px;line-height:20px;font-weight:400}
.caption-3{font-size:12px;line-height:16px;font-weight:600;letter-spacing:0.08em;text-transform:uppercase}
.caption-4{font-size:12px;line-height:16px;font-weight:500}
.caption-5{font-size:12px;line-height:16px;font-weight:400}
.muted{color:var(--ink2)}
.wrap{max-width:1200px;margin:0 auto;padding:0 32px}
.skip{position:absolute;left:16px;top:-64px;background:var(--ink);color:#fff;padding:8px 12px;border-radius:8px;z-index:100;transition:transform 300ms var(--ease)}
.skip:focus{transform:translateY(80px)}
:focus-visible{outline:2px solid var(--ink);outline-offset:4px;border-radius:4px}
/* buttons */
.btn{display:inline-flex;align-items:center;gap:8px;padding:12px 16px;border-radius:12px;font-size:16px;line-height:24px;font-weight:600;text-decoration:none;border:1px solid transparent;transition:transform 300ms var(--ease),background-color 300ms var(--ease),opacity 300ms var(--ease);white-space:nowrap}
.btn:hover{transform:translateY(-2px)}
.btn:active{transform:translateY(1px) scale(0.98)}
.btn-primary{background:var(--ink);color:#fff}
.btn-primary:hover{background:#2C2C24}
.btn-lime{background:var(--lime);color:var(--ink)}
.btn-lime:hover{background:#E6F894}
.btn-ghost{border-color:var(--line);background:transparent}
.btn-ghost:hover{background:#fff}
.btn-sm{font-size:14px;line-height:20px;padding:8px 12px;border-radius:8px}
/* nav */
.nav{position:fixed;top:16px;left:50%;transform:translateX(-50%);z-index:50;display:flex;align-items:center;gap:24px;padding:8px 8px 8px 16px;border-radius:16px;background:rgba(244,242,236,0.72);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border:1px solid rgba(20,20,15,0.08);width:max-content;max-width:calc(100% - 32px)}
.brand{display:flex;align-items:center;gap:8px;text-decoration:none;font-weight:600;font-size:16px;line-height:24px;letter-spacing:-0.01em}
.brand svg{width:24px;height:24px}
.nav-links{display:flex;gap:4px;list-style:none}
.nav-links a{display:block;padding:8px 12px;border-radius:8px;text-decoration:none;font-size:14px;line-height:20px;font-weight:500;color:var(--ink2);transition:background-color 300ms var(--ease),color 300ms var(--ease)}
.nav-links a:hover,.nav-links a[aria-current="true"]{background:rgba(20,20,15,0.06);color:var(--ink)}
.toggle{display:none;width:40px;height:40px;border:0;background:transparent;border-radius:8px;cursor:pointer;position:relative}
.toggle span{position:absolute;left:12px;width:16px;height:2px;background:var(--ink);border-radius:2px;transition:transform 500ms var(--ease)}
.toggle span:first-child{top:15px}.toggle span:last-child{top:23px}
.menu-open .toggle span:first-child{transform:translateY(4px) rotate(45deg)}
.menu-open .toggle span:last-child{transform:translateY(-4px) rotate(-45deg)}
.mobile-menu{position:fixed;inset:0;z-index:40;background:rgba(244,242,236,0.94);backdrop-filter:blur(24px);-webkit-backdrop-filter:blur(24px);padding:96px 24px 32px;display:flex;flex-direction:column;gap:8px;opacity:0;pointer-events:none;transition:opacity 300ms var(--ease)}
.menu-open .mobile-menu{opacity:1;pointer-events:auto}
.mobile-menu a{font-size:30px;line-height:36px;font-weight:600;text-decoration:none;padding:12px 0;opacity:0;transform:translateY(24px);transition:opacity 500ms var(--ease),transform 500ms var(--ease)}
.menu-open .mobile-menu a{opacity:1;transform:none}
.mobile-menu a:nth-child(2){transition-delay:60ms}.mobile-menu a:nth-child(3){transition-delay:120ms}.mobile-menu a:nth-child(4){transition-delay:180ms}.mobile-menu a:nth-child(5){transition-delay:240ms}
.mobile-menu .btn{margin-top:24px;justify-content:center;font-size:16px;line-height:24px}
/* hero */
.hero{padding:160px 0 96px}
.hero-grid{display:grid;grid-template-columns:1.1fr 0.9fr;gap:64px;align-items:center}
.eyebrow{display:inline-flex;align-items:center;gap:8px;padding:4px 12px 4px 4px;border-radius:999px;background:#fff;border:1px solid var(--line);margin-bottom:24px}
.eyebrow b{background:var(--lime);border-radius:999px;padding:2px 8px;font-size:12px;line-height:16px;font-weight:600}
.hero h1{max-width:680px;background:linear-gradient(90deg,#000 0%,#666 100%);-webkit-background-clip:text;background-clip:text;color:transparent;margin-bottom:24px}
.hero .lede{max-width:680px;font-size:18px;line-height:28px;font-weight:500;color:var(--ink2);margin-bottom:32px}
.cta-row{display:flex;flex-wrap:wrap;gap:12px;align-items:center}
.proof{display:flex;gap:16px;align-items:center;margin-top:32px;color:var(--ink2)}
.proof i{font-size:20px;color:var(--ink)}
/* hero visual: an "AI desk" ticket board */
.board{background:var(--dark);border-radius:24px;padding:8px;color:#EDEBE3;box-shadow:0 32px 64px -32px rgba(20,20,15,0.45)}
.board-in{border-radius:16px;background:#1F1F1F;padding:24px}
.board-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:24px;color:#9B9B9B}
.dot{display:inline-block;width:8px;height:8px;border-radius:999px;background:var(--lime);margin-right:8px;animation:pulse 2s var(--ease) infinite}
@keyframes pulse{50%{opacity:0.3}}
.ticket{display:grid;grid-template-columns:40px 1fr auto;gap:12px;align-items:center;padding:12px;border-radius:8px;background:#272727;margin-bottom:8px}
.ticket .ic{width:40px;height:40px;border-radius:8px;background:#313131;display:grid;place-items:center;font-size:20px;color:var(--lime)}
.ticket small{display:block;color:#9B9B9B;font-size:12px;line-height:16px}
.tag{font-size:12px;line-height:16px;font-weight:600;padding:4px 8px;border-radius:999px;background:rgba(217,242,107,0.14);color:var(--lime)}
.tag.wait{background:#313131;color:#9B9B9B}
.board-foot{margin-top:16px;padding-top:16px;border-top:1px solid #313131;display:flex;justify-content:space-between;color:#9B9B9B;font-size:12px;line-height:16px}
/* sections */
section{scroll-margin-top:96px}
.section{padding:96px 0}
.sec-head{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:end;margin-bottom:64px}
.sec-head .caption-3{display:block;color:var(--muted);margin-bottom:16px}
.band{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
/* problem */
.split{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.panel{border-radius:24px;padding:40px;border:1px solid var(--line);background:var(--card)}
.panel.dark{background:var(--dark);color:#EDEBE3;border-color:var(--dark)}
.panel h3{margin:16px 0 24px}
.panel ul{list-style:none;display:grid;gap:16px}
.panel li{display:flex;gap:12px}
.panel li i{font-size:20px;flex:none;margin-top:2px}
.panel.dark li i{color:var(--lime)}
.panel.dark .muted{color:#9B9B9B}
/* use cases */
.cases{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.case{border-radius:16px;border:1px solid var(--line);background:var(--paper);padding:32px;display:flex;flex-direction:column;gap:12px;transition:transform 500ms var(--ease),background-color 300ms var(--ease)}
.case:hover{transform:translateY(-4px);background:#fff}
.case .num{font-family:"Geist Mono",monospace;font-size:12px;line-height:16px;color:var(--muted)}
.case .ic{width:48px;height:48px;border-radius:12px;background:var(--ink);color:var(--lime);display:grid;place-items:center;font-size:24px;margin:8px 0}
.case .who{margin-top:auto;padding-top:16px;border-top:1px dashed var(--line);color:var(--muted)}
/* tagline reveal */
.reveal-sec{padding:96px 0 96px;min-height:0;background:var(--dark);color:#fff}
.reveal-text{max-width:960px}
.reveal-text .w{opacity:0.3;transition:opacity 500ms var(--ease)}
.reveal-text .w.on{opacity:1}
.reveal-text .hl{color:var(--lime)}
/* steps */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;counter-reset:s}
.step{padding:32px;border-radius:16px;background:#fff;border:1px solid var(--line);position:relative}
.step .n{font-family:"Geist Mono",monospace;font-size:48px;line-height:48px;font-weight:500;color:var(--line);margin-bottom:32px}
.step h3{margin-bottom:12px}
.step .time{display:inline-block;margin-top:24px;padding:4px 8px;border-radius:999px;background:var(--paper);border:1px solid var(--line)}
/* scenario */
.scenario{display:grid;grid-template-columns:0.9fr 1.1fr;gap:16px}
.scn-label{display:inline-flex;align-items:center;gap:8px;padding:4px 12px;border-radius:999px;border:1px solid currentColor}
.ba{display:grid;gap:8px}
.ba-row{display:grid;grid-template-columns:120px 1fr 1fr;gap:8px;align-items:stretch}
.ba-row>div{padding:16px;border-radius:12px;background:var(--paper);border:1px solid var(--line)}
.ba-row>div.after{background:var(--lime);border-color:var(--lime)}
.ba-row.head>div{background:transparent;border-color:transparent;padding:4px 16px}
/* principles */
.principles{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.pr{padding:24px 0;border-top:2px solid var(--ink)}
.pr h3{margin-bottom:8px}
/* faq */
.faq-grid{display:grid;grid-template-columns:0.8fr 1.2fr;gap:64px}
details{border-bottom:1px solid var(--line)}
details:first-child{border-top:1px solid var(--line)}
summary{list-style:none;cursor:pointer;display:flex;justify-content:space-between;gap:16px;padding:24px 0;font-size:18px;line-height:28px;font-weight:500}
summary::-webkit-details-marker{display:none}
summary i{font-size:20px;transition:transform 500ms var(--ease);flex:none;margin-top:4px}
details[open] summary i{transform:rotate(45deg)}
details p{padding:0 48px 24px 0;color:var(--ink2)}
/* final cta */
.final{padding:96px 0}
.final-card{background:var(--dark);color:#fff;border-radius:32px;padding:96px 64px;display:grid;grid-template-columns:1.2fr 0.8fr;gap:48px;align-items:end}
.final-card h2{background:linear-gradient(90deg,#fff 0%,#9B9B9B 100%);-webkit-background-clip:text;background-clip:text;color:transparent}
.final-card .muted{color:#9B9B9B}
.final-card ul{list-style:none;display:grid;gap:12px;margin:24px 0 32px}
.final-card li{display:flex;gap:12px;align-items:center}
.final-card li i{color:var(--lime);font-size:20px}
/* footer */
footer{padding:48px 0 64px}
.foot{display:flex;justify-content:space-between;gap:24px;flex-wrap:wrap;align-items:center;color:var(--ink2)}
.foot nav{display:flex;gap:24px;flex-wrap:wrap}
.foot a{text-decoration:none}.foot a:hover{color:var(--ink)}
/* reveal on scroll */
.rv{opacity:0;transform:translateY(32px);transition:opacity 700ms var(--ease),transform 700ms var(--ease)}
.rv.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){*{animation:none!important}.rv{transform:none;transition:opacity 300ms}.reveal-text .w{opacity:1;transition:none}.case:hover,.btn:hover{transform:none}}
/* responsive */
@media (max-width:1024px){.hero-grid,.sec-head,.split,.scenario,.faq-grid,.final-card{grid-template-columns:1fr}.cases,.steps{grid-template-columns:1fr 1fr}.principles{grid-template-columns:1fr 1fr}.sec-head{gap:16px}.faq-grid{gap:32px}}
@media (max-width:760px){
.nav-links,.nav .btn{display:none}.toggle{display:block}.nav{width:calc(100% - 32px);justify-content:space-between}
.wrap{padding:0 16px}
.hero{padding:112px 0 64px}
.heading-1{font-size:36px;line-height:40px}
.heading-2{font-size:30px;line-height:36px}
.heading-3{font-size:30px;line-height:36px}
.hero .lede{font-size:16px;line-height:24px}
.section,.reveal-sec,.final{padding:64px 0}
.sec-head{margin-bottom:40px}
.cases,.steps,.principles{grid-template-columns:1fr}
.panel{padding:24px}
.final-card{padding:40px 24px;border-radius:24px}
.ba-row{grid-template-columns:1fr 1fr}.ba-row>div:first-child{grid-column:1/-1;padding:8px 0 0;background:transparent;border-color:transparent}
.ba-row.head>div:first-child{display:none}
.btn{white-space:normal}
.cta-row .btn{width:100%;justify-content:center}
.board-in{padding:16px}
.ticket{grid-template-columns:40px 1fr}.ticket .tag{grid-column:2;justify-self:start}
}