:root{color-scheme:dark;--bg:#111114;--panel:#1b1b20;--line:#36363e;--muted:#b7b7c4;--accent:#dbff81}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:#f4f4f6;font:16px/1.55 system-ui,sans-serif}header,footer{max-width:1180px;margin:auto;padding:24px;display:flex;gap:24px;align-items:center;justify-content:space-between}a{color:var(--accent);text-underline-offset:4px}.brand{font-size:30px;font-weight:900;color:#fff;text-decoration:none;display:flex;align-items:center;gap:14px}.brand span{font-size:11px;letter-spacing:.15em;max-width:90px}main{max-width:1180px;margin:10px auto 60px;padding:24px;display:grid;grid-template-columns:1fr 1.2fr;gap:48px}h1{font-size:clamp(40px,5vw,64px);line-height:1.05;letter-spacing:-.04em;margin:16px 0 24px}.eyebrow{font-size:11px;letter-spacing:.15em;color:var(--accent)}.intro>p{color:var(--muted)}.access{background:var(--panel);border:1px solid var(--line);border-radius:18px;padding:22px;margin:30px 0 16px}.access p{margin:8px 0 16px;color:var(--muted)}button,.button{font:inherit;border:1px solid var(--line);padding:12px 16px;border-radius:12px;background:transparent;color:#fff;cursor:pointer;text-decoration:none;display:inline-block}button:disabled{opacity:.5;cursor:default}.primary{background:var(--accent);color:#111;border-color:var(--accent);font-weight:700}.chat{background:var(--panel);border:1px solid var(--line);border-radius:24px;padding:24px;min-width:0}#messages{max-height:400px;overflow:auto;scroll-behavior:smooth;overflow-wrap:anywhere}.bubble{background:#25252c;padding:18px;border-radius:16px;margin:0 0 14px;white-space:pre-wrap}.bubble strong{font-size:13px;color:var(--accent)}.bubble p{margin:8px 0 0}.bubble.user{background:#35372b}.bubble.user strong{color:#fff}label{display:block;font-weight:600;margin:16px 0 8px}select,textarea{font:inherit;width:100%;background:#111114;color:#f4f4f6;border:1px solid #555560;border-radius:12px;padding:12px}textarea{resize:vertical;min-height:130px}.consent{font-size:13px;font-weight:400;color:#d4d4dc}.consent input{margin-right:8px;accent-color:var(--accent)}.small{font-size:13px;color:var(--muted)}.actions{display:flex;gap:10px;flex-wrap:wrap}#status{min-height:24px;margin-bottom:0;color:var(--accent);overflow-wrap:anywhere}:focus-visible{outline:3px solid var(--accent);outline-offset:3px}[hidden]{display:none!important}footer{font-size:13px;flex-wrap:wrap;justify-content:flex-start;border-top:1px solid var(--line)}@media(max-width:760px){main{grid-template-columns:1fr;padding:16px;gap:26px;margin-top:0}.intro h1 br{display:none}header{padding:20px 16px}.chat{padding:18px}.access{margin-top:20px}#messages{max-height:340px}.brand span{font-size:10px}.actions button{flex:1}}

.at-service-links{box-sizing:border-box;margin:16px auto;padding:14px 18px;width:calc(100% - 32px);max-width:740px;border:1px solid #536650;border-radius:18px;background:#edf2e7;color:#172a21;font-size:16px}.at-service-links summary{cursor:pointer;font-weight:600;color:#172a21}.at-service-links>div{display:flex;flex-wrap:wrap;gap:12px 18px;padding-top:14px}.at-service-links a{color:#174d32!important;text-decoration:underline;font-size:16px}.at-service-links a:focus-visible{outline:2px solid #174d32;outline-offset:4px}

/* AT identity v1 — 2026-10-08 */
:root{--at-graphite:#101318;--at-paper:#f4f2ed;--at-connect:#c4f279;--at-learn:#efba68;--at-studio:#bca5f5;--at-flow:#82cfff;--at-focus:#82cfff}
.brand,.logo,.identity{letter-spacing:-.04em}.brand,.logo{font-weight:750}.brand span,.logo span{letter-spacing:.08em}.brand-mark{font-size:16px;font-weight:800;letter-spacing:-.08em;background:var(--at-connect);color:var(--at-graphite)}
:focus-visible{outline:3px solid var(--at-focus);outline-offset:4px}button,a,input,summary{scroll-margin-top:90px}
.at-brand-note{font-size:12px;line-height:1.5;letter-spacing:.03em;color:inherit;opacity:.75}
@media(prefers-reduced-motion:reduce){*,*:before,*:after{scroll-behavior:auto!important;animation-duration:.01ms!important;transition-duration:.01ms!important}}

.brand,.logo{color:inherit}.brand span,.logo span{font-size:10px}.brand{max-width:100%}