*{box-sizing:border-box;margin:0;padding:0}:root{--bg:#0d1117;--panel:#161b22;--border:#30363d;--text:#e6edf3;--muted:#8b949e;--accent:#2f81f7}body{background:var(--bg);color:var(--text);font-family:-apple-system,Segoe UI,Roboto,system-ui,sans-serif}.wrap{flex-direction:column;max-width:900px;height:100vh;margin:0 auto;padding:0 16px;display:flex}header{border-bottom:1px solid var(--border);align-items:center;gap:12px;padding:14px 0;display:flex}header h1{font-size:18px;font-weight:700}select,input,textarea,button{font-family:inherit;font-size:14px}select{background:var(--panel);color:var(--text);border:1px solid var(--border);border-radius:8px;padding:6px 10px}.chat{flex-direction:column;flex:1;gap:16px;padding:18px 0;display:flex;overflow-y:auto}.msg{gap:10px;display:flex}.msg .role{border-radius:8px;flex:0 0 34px;place-items:center;height:34px;font-size:12px;font-weight:700;display:grid}.msg.user .role{color:#79c0ff;background:#1f6feb33}.msg.assistant .role{color:#7ee787;background:#23863633}.msg .body{flex:1;line-height:1.55;overflow-x:auto}.msg .body p{margin:6px 0}.msg .body pre{border:1px solid var(--border);background:#0b0f14;border-radius:8px;margin:8px 0;padding:12px;overflow-x:auto}.msg .body code{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:13px}.msg .body :not(pre)>code{background:#ffffff14;border-radius:5px;padding:2px 5px}.composer{border-top:1px solid var(--border);gap:10px;padding:14px 0;display:flex}textarea{resize:none;background:var(--panel);color:var(--text);border:1px solid var(--border);border-radius:10px;flex:1;min-height:48px;max-height:160px;padding:10px 12px}button.send{background:var(--accent);color:#fff;cursor:pointer;border:none;border-radius:10px;padding:0 20px;font-weight:600}button.send:disabled{opacity:.5;cursor:default}.muted{color:var(--muted);font-size:13px}.login-box{background:var(--panel);border:1px solid var(--border);border-radius:14px;max-width:340px;margin:18vh auto;padding:28px}.login-box h1{margin-bottom:6px;font-size:22px}.login-box input{background:var(--bg);width:100%;color:var(--text);border:1px solid var(--border);border-radius:10px;margin:14px 0;padding:12px}.login-box button{background:var(--accent);color:#fff;cursor:pointer;border:none;border-radius:10px;width:100%;padding:12px;font-weight:600}.err{color:#f85149;font-size:13px}nav a{color:var(--muted);margin-left:14px;font-size:14px;text-decoration:none}nav a:hover{color:var(--text)}
pre code.hljs{padding:1em;display:block;overflow-x:auto}code.hljs{padding:3px 5px}.hljs{color:#c9d1d9;background:#0d1117}.hljs-doctag,.hljs-keyword,.hljs-meta .hljs-keyword,.hljs-template-tag,.hljs-template-variable,.hljs-type,.hljs-variable.language_{color:#ff7b72}.hljs-title,.hljs-title.class_,.hljs-title.class_.inherited__,.hljs-title.function_{color:#d2a8ff}.hljs-attr,.hljs-attribute,.hljs-literal,.hljs-meta,.hljs-number,.hljs-operator,.hljs-variable,.hljs-selector-attr,.hljs-selector-class,.hljs-selector-id{color:#79c0ff}.hljs-regexp,.hljs-string,.hljs-meta .hljs-string{color:#a5d6ff}.hljs-built_in,.hljs-symbol{color:#ffa657}.hljs-comment,.hljs-code,.hljs-formula{color:#8b949e}.hljs-name,.hljs-quote,.hljs-selector-tag,.hljs-selector-pseudo{color:#7ee787}.hljs-subst{color:#c9d1d9}.hljs-section{color:#1f6feb;font-weight:700}.hljs-bullet{color:#f2cc60}.hljs-emphasis{color:#c9d1d9;font-style:italic}.hljs-strong{color:#c9d1d9;font-weight:700}.hljs-addition{color:#aff5b4;background-color:#033a16}.hljs-deletion{color:#ffdcd7;background-color:#67060c}