:root{--bg:#f4f1ea;--surface:#fbfaf7;--surface-2:#efeae0;--ink:#2b2723;--ink-soft:#6b6459;--line:#e2dccf;--accent:#cd6f4c;--accent-ink:#fff;--user-bubble:#ece5d8;--danger:#b4432b;--radius:14px;--font-body:ui-sans-serif,system-ui,-apple-system,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;--font-display:"Iowan Old Style","Palatino Linotype",Palatino,Georgia,"Times New Roman",serif}*{box-sizing:border-box}body,html{margin:0;padding:0;height:100%}body{background:var(--bg);color:var(--ink);font-family:var(--font-body);font-size:15px;line-height:1.55;-webkit-font-smoothing:antialiased}button{font-family:inherit;cursor:pointer}a{color:var(--accent)}.auth-wrap{min-height:100dvh;display:grid;place-items:center;padding:24px}.auth-card{width:100%;max-width:380px;background:var(--surface);border:1px solid var(--line);border-radius:18px;padding:34px 30px;box-shadow:0 12px 40px rgba(43,39,35,.06)}.auth-logo{width:40px;height:40px;border-radius:11px;background:var(--accent);display:grid;place-items:center;color:#fff;font-size:22px;margin-bottom:18px}.auth-card h1,.auth-logo{font-family:var(--font-display);font-weight:600}.auth-card h1{font-size:24px;margin:0 0 4px;letter-spacing:-.01em}.auth-card p.sub{margin:0 0 24px;color:var(--ink-soft);font-size:14px}.field{margin-bottom:14px}.field label{display:block;font-size:13px;color:var(--ink-soft);margin-bottom:6px}.field input,.field select,.field textarea{width:100%;padding:11px 13px;border:1px solid var(--line);border-radius:10px;background:#fff;color:var(--ink);font-size:15px;font-family:inherit;outline:none;transition:border-color .15s}.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--accent)}.btn{width:100%;padding:12px 16px;border:none;border-radius:10px;background:var(--accent);color:var(--accent-ink);font-size:15px;font-weight:500;transition:filter .15s,opacity .15s}.btn:hover{filter:brightness(.96)}.btn:disabled{opacity:.6;cursor:not-allowed}.btn-ghost{background:transparent;color:var(--ink-soft);border:1px solid var(--line)}.btn-ghost:hover{background:var(--surface-2);filter:none}.err{background:#fbeae5;color:var(--danger);border:1px solid #f0cabb;border-radius:9px;padding:9px 12px;font-size:13px;margin-bottom:14px}.hint{margin-top:18px;font-size:12px;color:var(--ink-soft);text-align:center}.shell{display:flex;flex-direction:column;height:100dvh}.topbar{gap:12px;padding:12px 18px;border-bottom:1px solid var(--line);background:var(--surface)}.brand,.topbar{display:flex;align-items:center}.brand{gap:10px;font-family:var(--font-display);font-size:17px;font-weight:600;letter-spacing:-.01em}.brand .mark{width:26px;height:26px;border-radius:8px;background:var(--accent);color:#fff;display:grid;place-items:center;font-size:15px}.spacer{flex:1 1}.pill{font-size:12px;color:var(--ink-soft);background:var(--surface-2);border:1px solid var(--line);border-radius:999px;padding:4px 11px}.topbar a,.topbar button.link{font-size:13px;color:var(--ink-soft);text-decoration:none;background:none;border:none;padding:6px 8px;border-radius:7px}.topbar a:hover,.topbar button.link:hover{background:var(--surface-2);color:var(--ink)}.messages{flex:1 1;overflow-y:auto;padding:28px 0 12px}.thread{max-width:720px;margin:0 auto;padding:0 20px}.msg{display:flex;gap:13px;padding:14px 0}.avatar{width:28px;height:28px;border-radius:8px;flex-shrink:0;display:grid;place-items:center;font-size:13px;font-weight:600}.avatar.ai{background:var(--accent);color:#fff}.avatar.user{background:var(--user-bubble);color:var(--ink-soft)}.msg .body{padding-top:3px;white-space:pre-wrap;word-wrap:break-word;min-width:0}.msg .role{font-size:12px;color:var(--ink-soft);margin-bottom:2px}.cursor{display:inline-block;width:7px;height:15px;background:var(--accent);margin-left:2px;vertical-align:text-bottom;animation:blink 1s steps(2) infinite}@keyframes blink{0%,50%{opacity:1}50.01%,to{opacity:0}}.empty{max-width:720px;margin:8vh auto 0;text-align:center;padding:0 20px}.empty h2{font-family:var(--font-display);font-weight:600;font-size:30px;letter-spacing:-.02em;margin:0 0 8px}.empty p{color:var(--ink-soft);margin:0}.composer-wrap{border-top:1px solid var(--line);background:var(--surface);padding:14px 0 18px}.composer{max-width:720px;margin:0 auto;padding:0 20px}.composer-box{display:flex;align-items:flex-end;gap:8px;background:#fff;border:1px solid var(--line);border-radius:16px;padding:10px 10px 10px 16px;transition:border-color .15s}.composer-box:focus-within{border-color:var(--accent)}.composer textarea{flex:1 1;border:none;outline:none;resize:none;background:transparent;font-family:inherit;font-size:15px;line-height:1.5;max-height:180px;color:var(--ink)}.send{width:36px;height:36px;border-radius:10px;border:none;background:var(--accent);color:#fff;display:grid;place-items:center;flex-shrink:0}.send:disabled{background:var(--surface-2);color:var(--ink-soft);cursor:not-allowed}.composer .foot{text-align:center;font-size:11px;color:var(--ink-soft);margin-top:8px}.admin-page{max-width:640px;margin:0 auto;padding:40px 20px 60px}.admin-page h1{font-family:var(--font-display);font-weight:600;font-size:27px;letter-spacing:-.01em;margin:0 0 4px}.admin-page .lead{color:var(--ink-soft);margin:0 0 28px}.card{background:var(--surface);border:1px solid var(--line);border-radius:16px;padding:22px;margin-bottom:18px}.card h3{margin:0 0 14px;font-size:15px}.provider-grid{display:grid;grid-template-columns:repeat(3,1fr);grid-gap:10px;gap:10px;margin-bottom:4px}.provider-opt{border:1.5px solid var(--line);border-radius:12px;padding:14px 12px;text-align:center;background:#fff;transition:border-color .15s,background .15s}.provider-opt.active{border-color:var(--accent);background:#fbf1ec}.provider-opt .name{font-weight:600;font-size:14px}.provider-opt .status{font-size:11px;margin-top:4px}.status.ok{color:#3f7d4e}.status.missing{color:var(--danger)}.saved{font-size:13px;color:#3f7d4e}@media (max-width:560px){.provider-grid{grid-template-columns:1fr}}