:root{--color-primary:#22c1c7;--color-primary-dark:#129fa3;--color-primary-light:#6fe0e3;--color-bg:#f6fbfb;--color-surface:#fff;--color-text:#333;--color-muted:#9aa2a6;--color-border:#eaeff0;--shadow:0 6px 18px rgba(0,0,0,.06)}*{box-sizing:border-box}#__next,body,html{height:100%}body{margin:0;font-family:Inter,Segoe UI,Roboto,Helvetica Neue,Arial;background:var(--color-bg);color:var(--color-text)}.page-root{min-height:100vh;display:flex;flex-direction:column}.topbar{height:64px;display:flex;align-items:center;padding:0 24px;background:linear-gradient(90deg,var(--color-primary) 0,var(--color-primary-light) 100%);color:#fff;box-shadow:inset 0 1px 0 hsla(0,0%,100%,.04)}.brand{font-weight:600;letter-spacing:.4px}.main{display:flex;flex:1 1 auto;align-items:center;justify-content:center;padding:48px 16px}.starter-card{width:720px;max-width:96%;background:var(--color-surface);border-radius:12px;box-shadow:var(--shadow);padding:28px;border:1px solid var(--color-border);text-align:center}.starter-card h2{margin:0 0 8px}.starter-card .muted{color:var(--color-muted);margin:0 0 16px}.starter-form textarea{width:100%;border-radius:8px;padding:12px;border:1px solid var(--color-border)}.starter-actions{display:flex;justify-content:flex-end;margin-top:12px}.hero{display:flex;flex-direction:column;align-items:center;gap:20px}.hero-icon{margin-top:12px}.hero-title{margin:0;font-size:20px;font-weight:600;color:var(--color-text)}.prompt-bar{width:820px;max-width:96%;display:flex;align-items:center;gap:12px;padding:20px;min-height:68px;border-radius:32px;background:linear-gradient(180deg,#fff,#fbffff);box-shadow:0 18px 50px rgba(34,193,199,.08);border:1px solid rgba(0,0,0,.04)}.prompt-left{display:flex;flex-direction:column;flex:1 1 auto;gap:8px}.prompt-input{width:100%;border:0;outline:0;font-size:17px;padding:8px 2px;color:var(--color-text);background:transparent}.prompt-tags{display:flex;gap:8px}.tag{background:transparent;border:1px solid var(--color-border);padding:6px 10px;border-radius:999px;font-size:13px;cursor:pointer}.prompt-send{width:36px;height:36px;border-radius:50%;border:0;background:var(--color-primary);display:inline-flex;align-items:center;justify-content:center;cursor:pointer}.prompt-send svg{transform:translateY(.5px);width:12px;height:12px}@media (max-width:880px){.prompt-bar{width:96%;padding:12px}.hero-title{font-size:18px}}.chat-card{width:880px;max-width:98%;height:640px;background:var(--color-surface);border-radius:10px;box-shadow:var(--shadow);display:flex;flex-direction:column;overflow:hidden;border:1px solid var(--color-border)}.chat-window{flex:1 1 auto;padding:24px;overflow:auto;background:linear-gradient(180deg,rgba(242,253,253,.6),transparent 40%)}.message{display:flex;margin-bottom:12px}.message .bubble{max-width:70%;padding:10px 14px;border-radius:14px;white-space:normal;word-break:break-word}.message.system{justify-content:center}.message.system .bubble{background:transparent;color:var(--color-muted);font-size:14px}.message.user{justify-content:flex-end}.message.user .bubble{background:var(--color-primary);color:#fff;border-bottom-right-radius:6px}.message.assistant{justify-content:flex-start}.message.assistant .bubble{background:#f3f7f7;color:var(--color-text);border-bottom-left-radius:6px}.message .bubble .md-line{margin:0 0 8px;line-height:1.6}.message .bubble .md-line:last-child{margin-bottom:0}.message .bubble .md-list{margin:0 0 8px 1.2em;padding-left:1.2em;line-height:1.6}.message .bubble .md-list-item{margin:4px 0}.message .bubble .md-inline-code{background:rgba(0,0,0,.06);padding:0 4px;border-radius:4px;font-family:JetBrains Mono,Consolas,Courier New,monospace}.message.user .bubble .md-inline-code{background:hsla(0,0%,100%,.25)}.message .bubble .md-code{background:#111920;color:#f8fbff;padding:12px 14px;border-radius:10px;overflow:auto;margin:0 0 10px;font-family:JetBrains Mono,Consolas,Courier New,monospace;font-size:13px}.message .bubble .md-code:last-child{margin-bottom:0}.message .bubble pre{margin:0}.chat-input{display:flex;gap:12px;padding:16px;border-top:1px solid var(--color-border);align-items:center}.chat-input textarea{flex:1 1 auto;resize:none;border-radius:8px;padding:10px 12px;border:1px solid var(--color-border);font-size:14px}.btn-primary{background:var(--color-primary);color:#fff;border:none;padding:10px 18px;border-radius:8px;cursor:pointer;font-weight:600}.btn-primary[disabled]{opacity:.6;cursor:not-allowed}@media (max-width:640px){.chat-card{height:80vh}}