:root{--bg:#071527;--card:#0d223b;--card2:#102c4d;--gold:#d4af37;--red:#c70039;--text:#f5f7fb;--muted:#aebbd0;--line:#1f4164;--ok:#1ed760;--danger:#ff4d4d}*{box-sizing:border-box}body{margin:0;background:radial-gradient(circle at top left,#123b68 0,#071527 34%,#030914 100%);color:var(--text);font-family:Arial,Helvetica,sans-serif;min-height:100vh}.wrap{max-width:1100px;margin:0 auto;padding:28px 18px}.top{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:18px 0}.brand{font-size:24px;font-weight:800;letter-spacing:.5px}.brand span{color:var(--gold)}.pill{border:1px solid var(--line);background:rgba(13,34,59,.7);color:var(--muted);border-radius:999px;padding:9px 13px;font-size:13px}.hero{padding:38px 0 22px}.hero h1{font-family:Georgia,'Times New Roman',serif;font-size:clamp(36px,6vw,76px);line-height:1.02;margin:10px 0;color:white}.hero h1 span{color:var(--gold)}.hero p{max-width:760px;font-size:18px;line-height:1.65;color:var(--muted)}.grid{display:grid;grid-template-columns:260px 1fr;gap:22px}.side,.chatbox,.panel{background:rgba(13,34,59,.82);border:1px solid var(--line);border-radius:22px;box-shadow:0 18px 50px rgba(0,0,0,.28)}.side{padding:16px}.mode{display:block;text-decoration:none;color:var(--text);padding:14px;border-radius:15px;margin-bottom:10px;background:rgba(255,255,255,.03);border:1px solid transparent}.mode strong{display:block}.mode small{color:var(--muted);line-height:1.35}.mode.active{border-color:var(--gold);background:rgba(212,175,55,.12)}.chatbox{padding:18px;min-height:580px;display:flex;flex-direction:column}.chat-head{padding:8px 8px 18px;border-bottom:1px solid var(--line)}.chat-head h2{font-family:Georgia,'Times New Roman',serif;color:var(--gold);font-size:32px;margin:0 0 6px}.chat-head p{margin:0;color:var(--muted)}#messages{flex:1;padding:18px 6px;overflow:auto}.msg{max-width:88%;padding:14px 16px;border-radius:17px;margin:10px 0;line-height:1.55;white-space:pre-wrap}.user{margin-left:auto;background:var(--red);color:white}.bot{background:var(--card2);border:1px solid var(--line)}.form{display:flex;gap:10px;border-top:1px solid var(--line);padding-top:16px}textarea{flex:1;min-height:70px;resize:vertical;border-radius:16px;border:1px solid var(--line);background:#061224;color:white;padding:14px;font-size:15px}button{border:0;border-radius:16px;background:var(--gold);color:#071527;padding:0 22px;font-weight:800;cursor:pointer}button:disabled{opacity:.55;cursor:not-allowed}.quick{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px}.quick button{background:rgba(255,255,255,.07);color:var(--text);border:1px solid var(--line);padding:9px 12px;border-radius:999px;font-size:13px}.footer{margin-top:35px;padding:24px 0;text-align:center;color:var(--muted);font-size:14px}.footer a{color:var(--gold);margin:0 8px;text-decoration:none}.panel{padding:20px;margin-top:20px}.panel h3{margin-top:0;color:var(--gold)}code{background:#020913;padding:2px 5px;border-radius:5px;color:#fff}@media(max-width:800px){.grid{grid-template-columns:1fr}.form{flex-direction:column}button{padding:14px}.top{align-items:flex-start;flex-direction:column}}