:root{--bg: #0d1117;--bg-raised: #161b22;--bg-header: #10151c;--border: #2d333b;--text: #e6edf3;--text-dim: #8b949e;--accent: #3b82f6;--accent-hover: #2563eb;--green: #3fb950;--red: #f85149;--yellow: #d29922;--radius: 8px;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif}*{box-sizing:border-box}html,body,#app{margin:0;height:100%;background:var(--bg);color:var(--text)}.btn{display:inline-flex;align-items:center;gap:6px;border:1px solid var(--border);border-radius:var(--radius);background:var(--bg-raised);color:var(--text);font-size:13px;font-weight:500;padding:7px 14px;cursor:pointer;transition:background .15s,border-color .15s}.btn:hover:not(:disabled){background:#21262d;border-color:#444c56}.btn:disabled{opacity:.55;cursor:default}.btn-primary{background:var(--accent);border-color:var(--accent);color:#fff}.btn-primary:hover:not(:disabled){background:var(--accent-hover);border-color:var(--accent-hover)}.btn-ghost{background:transparent}.btn-sm{padding:3px 10px;font-size:12px}.btn-lg{padding:12px 24px;font-size:15px;justify-content:center}.input{background:var(--bg);border:1px solid var(--border);border-radius:var(--radius);color:var(--text);font-size:15px;padding:11px 14px;outline:none;width:100%}.input:focus{border-color:var(--accent)}.spacer{flex:1}.lobby{height:100%;display:flex;align-items:center;justify-content:center;background:radial-gradient(ellipse 60% 40% at 50% 0%,#1c2a4522,transparent),var(--bg)}.lobby-card{width:min(440px,90vw);background:var(--bg-raised);border:1px solid var(--border);border-radius:14px;padding:40px 36px;text-align:center;box-shadow:0 24px 60px #00000073}.lobby-logo{display:inline-block;font-family:SF Mono,Menlo,monospace;font-size:22px;font-weight:700;color:var(--accent);background:#1c2a45;border-radius:12px;padding:10px 16px;margin-bottom:18px}.lobby-card h1{margin:0 0 10px;font-size:24px}.lobby-sub{color:var(--text-dim);font-size:14px;line-height:1.55;margin:0 0 26px}.lobby-card .btn-lg{width:100%}.lobby-features{list-style:none;margin:28px 0 0;padding:0;text-align:left;color:var(--text-dim);font-size:13px}.lobby-features li{padding:6px 0 6px 24px;position:relative}.lobby-features li:before{content:"✓";position:absolute;left:2px;color:var(--green)}.name-form{display:flex;flex-direction:column;gap:12px}.lobby-hint{color:var(--text-dim);font-size:13px;margin:14px 0 0}.lobby-hint a{color:var(--accent);text-decoration:none}.lobby-hint.error{color:var(--red)}.lobby-hint:empty{display:none}.gsi-button{display:flex;justify-content:center;min-height:44px}.lobby-card a.btn{text-decoration:none}.room{height:100%;display:flex;flex-direction:column}.room-header{display:flex;align-items:center;gap:12px;padding:10px 16px;background:var(--bg-header);border-bottom:1px solid var(--border);flex:0 0 auto}.room-brand{font-family:SF Mono,Menlo,monospace;font-weight:700;color:var(--accent);text-decoration:none;font-size:15px}.room-id{font-family:SF Mono,Menlo,monospace;font-size:12px;color:var(--text-dim);background:var(--bg-raised);border:1px solid var(--border);border-radius:6px;padding:4px 8px}.participants{display:flex;gap:6px}.participant{width:28px;height:28px;border-radius:50%;display:inline-flex;align-items:center;justify-content:center;font-size:11px;font-weight:700;color:#fff;background:var(--user-color, #555);border:2px solid var(--bg-header)}.conn-status{font-size:12px;color:var(--yellow)}.conn-status.connected{color:var(--green)}.run-icon{font-size:10px}.spinner{width:12px;height:12px;border:2px solid rgba(255,255,255,.35);border-top-color:#fff;border-radius:50%;animation:spin .7s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.room-main{flex:1;display:flex;min-height:0}.editor-pane{flex:1 1 62%;min-width:0;border-right:1px solid var(--border)}#editor{height:100%}.output-pane{flex:1 1 38%;min-width:280px;display:flex;flex-direction:column;background:var(--bg-raised)}.output-header{display:flex;align-items:center;gap:10px;padding:8px 14px;border-bottom:1px solid var(--border);font-size:12px;font-weight:600;text-transform:uppercase;letter-spacing:.06em;color:var(--text-dim)}.run-status{text-transform:none;letter-spacing:normal;font-weight:500;color:var(--yellow)}.output{flex:1;margin:0;padding:12px 14px;overflow:auto;font-family:SF Mono,Menlo,Monaco,monospace;font-size:13px;line-height:1.5;white-space:pre-wrap;word-break:break-word}.out-meta{color:var(--text-dim)}.out-stdout{color:var(--text)}.out-stderr{color:var(--yellow)}.out-error{color:var(--red)}.yRemoteSelection{opacity:.6}