:root{--ink:#14212B;--paper:#F2F5F7;--card:#fff;--teal:#0B7A75;--teal-d:#085c58;--amber:#E2A400;--line:#D5DDE3;--mut:#566672;--err:#B3261E;--ok:#1B6E3C}
*{box-sizing:border-box}html{scroll-behavior:smooth}
body{margin:0;background:var(--paper);color:var(--ink);font:16px/1.6 system-ui,-apple-system,"Segoe UI",Roboto,sans-serif}
h1,h2,h3{font-family:"Iowan Old Style","Palatino Linotype",Palatino,Georgia,serif;line-height:1.15;margin:0 0 .5em}
h1{font-size:clamp(2rem,5vw,3.2rem);max-width:18ch}h2{font-size:1.9rem}h3{font-size:1.2rem}
a{color:var(--teal-d)}.wrap{max-width:1040px;margin:0 auto;padding:0 20px}.narrow{max-width:640px}
.top{background:var(--ink)}.bar{display:flex;justify-content:space-between;align-items:center;min-height:60px}
.logo{color:#fff;text-decoration:none;font-family:Georgia,serif;font-size:1.25rem}.top nav{display:flex;gap:18px;align-items:center}.top nav a{color:#D5E3EA;text-decoration:none}
.btn{display:inline-block;background:var(--teal);color:#fff;border:0;border-radius:6px;padding:12px 22px;font:600 1rem system-ui,sans-serif;text-decoration:none;cursor:pointer}
.btn.wa{background:#25613B}.btn:hover{background:var(--teal-d)}.btn.sm{padding:7px 14px;font-size:.9rem}.btn:disabled{opacity:.5}
:focus-visible{outline:3px solid var(--amber);outline-offset:2px}
.hero{padding:56px 0 48px}.two{display:grid;grid-template-columns:1.1fr .9fr;gap:40px;align-items:center}
.lead{font-size:1.15rem;color:var(--mut);max-width:48ch}
.mock,.log{display:flex;flex-direction:column;gap:10px}.mock{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:20px}
.b{max-width:85%;padding:10px 14px;border-radius:12px;white-space:pre-wrap;overflow-wrap:anywhere}
.b.user{align-self:flex-end;background:var(--ink);color:#fff;border-bottom-right-radius:3px}.b.assistant{align-self:flex-start;background:#E4ECEF;border-bottom-left-radius:3px}.b.err{background:#FBE4E2;color:var(--err)}
.sec{padding:36px 20px}.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.grid3 article{border-top:3px solid var(--teal);background:var(--card);padding:18px 20px;border-radius:0 0 8px 8px}
.steps{padding-left:1.2em;max-width:62ch}.steps li{margin:.6em 0}.nota{color:var(--mut)}
.form{display:grid;gap:14px}.form label{display:grid;gap:4px;font-weight:600}
.form input:not([type=checkbox]),.form select,.form textarea{font:inherit;padding:10px 12px;border:1px solid #9FB0BB;border-radius:6px;background:#fff;width:100%}
.form .chk{display:flex;gap:8px;font-weight:400;align-items:flex-start}.hp{position:absolute;left:-9999px}
.ok{background:#E3F3E9;color:var(--ok);padding:10px 14px;border-radius:6px}.errmsg{background:#FBE4E2;color:var(--err);padding:10px 14px;border-radius:6px}
footer{padding:28px 0;color:var(--mut);font-size:.9rem;border-top:1px solid var(--line);margin-top:30px}
.chatpage{min-height:100vh;display:flex;justify-content:center;padding:12px}
.chatbox{width:100%;max-width:720px;background:var(--card);border:1px solid var(--line);border-radius:12px;display:flex;flex-direction:column;height:calc(100vh - 24px);overflow:hidden}
.chatbox header{padding:16px 20px;border-bottom:1px solid var(--line)}.chatbox h1{font-size:1.4rem;margin:0}.aviso{margin:4px 0 0;color:var(--mut);font-size:.85rem}
.log{flex:1;overflow-y:auto;padding:16px 20px}#f{display:flex;gap:8px;padding:12px;border-top:1px solid var(--line)}#f input{flex:1;font:inherit;padding:10px 12px;border:1px solid #9FB0BB;border-radius:6px}
table{border-collapse:collapse;width:100%;background:#fff}th,td{border-bottom:1px solid var(--line);padding:8px 10px;text-align:left;vertical-align:top}
.card{background:#fff;border:1px solid var(--line);border-radius:8px;padding:14px 16px;margin:12px 0}.card textarea{width:100%;font:inherit;padding:8px;border:1px solid #9FB0BB;border-radius:6px}
.row{display:flex;gap:8px;flex-wrap:wrap;margin-top:8px}.danger{background:var(--err)}.pill{background:var(--amber);color:#14212B;border-radius:99px;padding:2px 10px;font-size:.8rem;font-weight:700}
@media(max-width:760px){.two,.grid3{grid-template-columns:1fr}.top nav a:not(.btn){display:none}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}