:root{--navy:#102a43;--ink:#17202a;--orange:#f26a2e;--cream:#f6f2e8;--paper:#fffdf8;--line:#d8d0c0;--muted:#617080;--green:#2c7a5a;--shadow:0 18px 55px rgba(16,42,67,.14);font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;color:var(--ink);background:var(--cream)}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:linear-gradient(90deg,transparent 49px,#e9e2d4 50px,transparent 51px),linear-gradient(#f6f2e8 31px,#e9e2d4 32px);background-size:50px 32px;color:var(--ink)}button,textarea{font:inherit}a{color:inherit}button{cursor:pointer}.site-header{height:76px;padding:0 clamp(20px,5vw,72px);display:flex;align-items:center;justify-content:space-between;background:var(--paper);border-bottom:1px solid var(--line);position:relative;z-index:5}.brand{display:flex;align-items:center;gap:12px;text-decoration:none}.brand-mark{display:grid;place-items:center;width:43px;height:43px;background:var(--orange);color:#fff;font-weight:900;transform:rotate(-2deg);box-shadow:4px 4px 0 var(--navy)}.brand strong,.brand small{display:block}.brand strong{font-size:15px;letter-spacing:.08em}.brand small{font-size:9px;color:var(--muted);letter-spacing:.16em;margin-top:3px}.source-link{font-size:12px;font-weight:800;text-underline-offset:4px}
main{width:min(1120px,calc(100% - 32px));margin:auto}.intro{text-align:center;padding:72px 20px 38px}.eyebrow{font-size:12px;font-weight:900;letter-spacing:.16em;color:var(--orange);margin:0 0 20px}.eyebrow span{color:var(--navy);margin-left:10px}.intro h1{font-size:clamp(42px,7vw,78px);line-height:.98;letter-spacing:-.055em;margin:0;color:var(--navy)}.intro h1 em{font-style:normal;color:var(--orange)}.lede{font-size:clamp(17px,2vw,21px);line-height:1.55;color:#435466;max-width:760px;margin:28px auto 0}
.chat-shell{max-width:850px;margin:0 auto 54px;background:var(--paper);border:1px solid var(--line);box-shadow:var(--shadow);position:relative}.chat-shell:before{content:"";position:absolute;inset:-8px 8px 8px -8px;border:2px solid var(--navy);z-index:-1}.chat-bar{min-height:58px;background:var(--navy);color:white;display:flex;align-items:center;justify-content:space-between;padding:13px 18px}.chat-bar>div{display:flex;align-items:center;gap:10px;letter-spacing:.08em}.status-dot{width:10px;height:10px;background:#4ee59c;border-radius:50%;box-shadow:0 0 0 4px #ffffff18}.chat-bar button{background:transparent;border:1px solid #ffffff55;color:#fff;padding:8px 12px;font-size:12px}.messages{height:360px;overflow:auto;padding:24px;background:linear-gradient(135deg,#fffdf8 75%,#faf3e5);scrollbar-color:var(--navy) transparent}.message{max-width:82%;margin:0 0 18px}.message p{margin:0;white-space:pre-wrap;overflow-wrap:anywhere;line-height:1.55}.message-label{display:block;font-size:9px;font-weight:900;letter-spacing:.15em;margin-bottom:6px;color:var(--muted)}.message.assistant p:not(.message-note){background:#e9f0f5;border-left:4px solid var(--navy);padding:14px 16px}.message.user{margin-left:auto}.message.user .message-label{text-align:right}.message.user p{background:#ffe1d3;border-right:4px solid var(--orange);padding:14px 16px}.message-note{font-size:12px;color:var(--muted);padding:10px 4px 0}.message a{font-weight:700;text-underline-offset:3px}.chat-status{min-height:22px;margin:0;padding:0 24px;color:#9a3412;font-size:13px;font-weight:700}.chat-form{padding:12px 18px 18px;border-top:1px solid var(--line)}.chat-form label{display:block;font-size:11px;font-weight:800;margin-bottom:8px}.input-row{display:flex;gap:10px}.chat-form textarea{flex:1;resize:vertical;min-height:56px;max-height:130px;border:2px solid var(--navy);background:white;padding:13px;color:var(--ink);font-size:16px}.chat-form textarea:focus{outline:3px solid #f26a2e42;outline-offset:2px}.chat-form button{border:0;background:var(--orange);color:white;font-weight:900;padding:0 22px;min-width:150px;box-shadow:4px 4px 0 var(--navy)}.chat-form button:disabled{opacity:.6;cursor:wait}.disclaimer{margin:0;padding:0 18px 18px;font-size:11px;line-height:1.45;color:var(--muted)}
.proof{display:grid;grid-template-columns:repeat(3,1fr);background:var(--navy);color:white;margin:0 auto 90px}.proof article{display:flex;align-items:center;gap:16px;padding:22px 25px;border-right:1px solid #ffffff25}.proof article:last-child{border:0}.proof strong{font-size:24px;color:#ff9a69}.proof span{font-size:13px;line-height:1.35}.knowledge{padding-bottom:90px}.section-heading{max-width:700px;margin-bottom:34px}.section-heading h2{font-size:clamp(34px,5vw,58px);line-height:1.04;letter-spacing:-.04em;color:var(--navy);margin:0 0 18px}.section-heading>p:last-child{font-size:17px;line-height:1.55;color:var(--muted)}.az-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}.az-card{background:var(--paper);border:1px solid var(--line);padding:18px;min-height:154px;text-decoration:none;transition:.18s ease}.az-card:hover,.az-card:focus-visible{transform:translateY(-3px);border-color:var(--orange);box-shadow:5px 5px 0 #f26a2e26}.az-card b{display:block;font-size:30px;color:var(--orange);line-height:1}.az-card strong{display:block;color:var(--navy);margin:10px 0 7px}.az-card span{font-size:12px;line-height:1.45;color:var(--muted)}footer{background:var(--navy);color:white;min-height:90px;padding:25px clamp(20px,5vw,72px);display:flex;justify-content:space-between;align-items:center;gap:20px;font-size:12px}footer a{color:#ffb18d}
@media(max-width:760px){.site-header{padding:0 16px}.source-link{display:none}.intro{padding:48px 8px 28px}.chat-shell{margin-inline:0}.messages{height:330px;padding:18px}.input-row{display:block}.chat-form button{width:100%;min-height:50px;margin-top:10px}.proof{grid-template-columns:1fr}.proof article{border-right:0;border-bottom:1px solid #ffffff25}.az-grid{grid-template-columns:repeat(2,1fr)}footer{align-items:flex-start;flex-direction:column}.message{max-width:94%}}
@media(max-width:420px){.brand small{display:none}.az-grid{grid-template-columns:1fr}.az-card{min-height:auto}.eyebrow span{display:block;margin:8px 0 0}.intro h1{font-size:43px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.az-card{transition:none}}