.ai-body{height:100dvh;display:flex;flex-direction:column;overflow:hidden}
.ai-body .nav{flex:none}
.ai{flex:1;display:flex;flex-direction:column;min-height:0;width:100%;max-width:860px;margin:0 auto;padding:0 24px}
.ai-scroll{flex:1;overflow-y:auto;min-height:0;padding:40px 0 24px;scrollbar-width:thin}
.ai-hero{padding-top:6vh}
.ai-title{font-size:clamp(38px,6vw,68px);font-weight:700;letter-spacing:-.045em;line-height:.98;margin:0 0 18px}
.ai-sub{color:var(--mut);font-size:16px;line-height:1.6;max-width:520px;margin:0 0 32px}
.ai-sugg{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}
.ai-sugg button{text-align:left;background:#060606;border:1px solid var(--line2);border-radius:14px;padding:14px 16px;color:#d6d6d6;font:inherit;font-size:14px;line-height:1.4;cursor:pointer;transition:border-color .2s,background .2s}
.ai-sugg button:hover{border-color:#555;background:#0c0c0c}
.ai-thread{display:flex;flex-direction:column;gap:22px}
.msg{display:flex;flex-direction:column;gap:6px;min-width:0}
.msg .who{font-family:var(--mono);font-size:10px;letter-spacing:.16em;color:var(--dim)}
.msg.user{align-items:flex-end}
.msg.user .body{background:#fff;color:#000;border-radius:18px 18px 4px 18px;padding:11px 16px;max-width:min(80%,620px);white-space:pre-wrap;overflow-wrap:anywhere;font-size:15px;line-height:1.5}
.msg.bot .body{font-size:15.5px;line-height:1.7;color:#e8e8e8;overflow-wrap:anywhere;min-width:0}
.msg.bot .body p{margin:0 0 12px}
.msg.bot .body p:last-child{margin-bottom:0}
.msg.bot .body ul,.msg.bot .body ol{margin:0 0 12px;padding-left:22px}
.msg.bot .body h3,.msg.bot .body h4{font-size:16px;margin:16px 0 8px}
.msg.bot .body code{font-family:var(--mono);font-size:13px;background:#141414;border:1px solid var(--line2);border-radius:6px;padding:1px 5px}
.msg.bot .body pre{background:#070707;border:1px solid var(--line2);border-radius:12px;padding:14px 16px;overflow-x:auto;margin:0 0 12px}
.msg.bot .body pre code{background:none;border:0;padding:0;font-size:12.5px;line-height:1.6}
.msg.bot .body a{text-decoration:underline}
.msg.err .body{color:#ff9b9b;font-family:var(--mono);font-size:13px}
.msg .meta{font-family:var(--mono);font-size:10px;color:var(--dim)}
.typing::after{content:"▍";animation:blink 1s steps(1) infinite;margin-left:2px}
@keyframes blink{50%{opacity:0}}
.ai-input{flex:none;padding:10px 0 18px;background:linear-gradient(transparent,#000 30%)}
.ai-models{display:flex;gap:6px;overflow-x:auto;padding-bottom:10px;scrollbar-width:none}
.ai-models::-webkit-scrollbar{display:none}
.ai-models button{flex:none;background:none;border:1px solid var(--line2);color:var(--mut);border-radius:999px;padding:6px 12px;font:inherit;font-size:11px;letter-spacing:.04em;cursor:pointer;transition:.2s}
.ai-models button:hover{color:#fff;border-color:#555}
.ai-models button.on{background:#fff;color:#000;border-color:#fff}
.ai-box{display:flex;align-items:flex-end;gap:10px;background:#0a0a0a;border:1px solid var(--line2);border-radius:20px;padding:10px 10px 10px 18px;transition:border-color .2s}
.ai-box:focus-within{border-color:#555}
.ai-box textarea{flex:1;min-width:0;background:none;border:0;outline:none;color:#fff;font:inherit;font-size:16px;line-height:1.5;resize:none;max-height:200px;padding:6px 0}
.ai-send{flex:none;width:38px;height:38px;border-radius:50%;border:0;background:#fff;color:#000;display:grid;place-items:center;cursor:pointer;transition:opacity .2s,transform .15s}
.ai-send:active{transform:scale(.94)}
.ai-send[disabled]{opacity:.3;pointer-events:none}
.ai-note{font-size:10.5px;color:var(--dim);margin:10px 0 0;text-align:center;letter-spacing:.02em}
@media (max-width:860px){
  .ai{padding:0 16px}
  .ai-scroll{padding-top:24px}
  .ai-hero{padding-top:2vh}
  .ai-sub{margin-bottom:22px}
  .ai-sugg{grid-template-columns:minmax(0,1fr)}
  .ai-sugg button:nth-child(n+3){display:none}
  .nav-cta{display:inline-flex;height:36px;padding:0 14px;font-size:13px}
  .msg.user .body{max-width:88%}
  .ai-input{padding-bottom:max(12px,env(safe-area-inset-bottom))}
}
.msg.bot .body pre{scrollbar-width:thin;scrollbar-color:#333 transparent}
.msg.bot .body pre::-webkit-scrollbar{height:6px}
.msg.bot .body pre::-webkit-scrollbar-thumb{background:#333;border-radius:3px}
.ai-scroll{scrollbar-color:#222 transparent}