:root{--bg:#0B0D0F;--panel:#14171B;--panel-2:#1C2026;--line:#282E36;--ink:#EEF2F6;--ink-2:#98A2AE;--ink-3:#6B7684;--accent:#31C56B;--accent-ink:#06210F;--sans:"Inter",-apple-system,BlinkMacSystemFont,"Segoe UI",Helvetica,Arial,sans-serif;--cond:"Barlow Condensed","Inter",Helvetica,Arial,sans-serif}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--sans);-webkit-font-smoothing:antialiased}.app{display:grid;grid-template-columns:60px 1fr 262px;height:calc(100vh - 46px);max-height:calc(100vh - 46px);overflow:hidden}.rail{background:var(--panel);border-right:1px solid var(--line);display:flex;flex-direction:column;align-items:center;gap:3px;padding:10px 0}.tool{width:44px;height:40px;border-radius:10px;border:1px solid transparent;background:transparent;color:var(--ink-2);cursor:pointer;font-size:10px;font-weight:700;letter-spacing:.04em;text-transform:uppercase}.tool:hover{background:var(--panel-2);color:var(--ink)}.tool.on{background:var(--accent);color:var(--accent-ink)}.tool:focus-visible{outline:2px solid var(--accent);outline-offset:2px}.stage{display:flex;flex-direction:column;min-width:0}.tabs{display:flex;align-items:center;gap:6px;padding:8px 14px;border-bottom:1px solid var(--line);flex-wrap:wrap;position:relative;z-index:20}.hint{font-size:11.5px;color:var(--ink-3)}.board{flex:1;position:relative;padding:12px;min-height:0;overflow:hidden}canvas{position:absolute;inset:12px;margin:auto;max-width:calc(100% - 24px);max-height:calc(100% - 24px);border-radius:8px;display:block;touch-action:none;cursor:crosshair}.timeline{background:var(--panel);border-top:1px solid var(--line);padding:10px 14px;display:flex;align-items:center;gap:9px;flex-wrap:wrap}.kf{display:flex;gap:4px;flex-wrap:wrap}.kfbtn{width:29px;height:29px;border-radius:7px;border:1px solid var(--line);background:var(--panel-2);color:var(--ink-2);font-size:11.5px;font-weight:600;cursor:pointer}.kfbtn.on{background:var(--accent);color:var(--accent-ink);border-color:var(--accent)}.kfbtn.dup{border-style:dashed;color:var(--ink-3)}.spacer{flex:1}.btn{font-family:var(--sans);font-size:12.5px;font-weight:600;color:var(--ink);background:var(--panel-2);border:1px solid var(--line);border-radius:8px;padding:8px 12px;cursor:pointer}.btn:hover{background:#232830}.btn.primary{background:var(--accent);color:var(--accent-ink);border-color:var(--accent)}.btn:disabled{opacity:.4;cursor:default}.btn:focus-visible{outline:2px solid var(--accent);outline-offset:2px}.side{background:var(--panel);border-left:1px solid var(--line);overflow-y:auto;padding:14px;display:flex;flex-direction:column;gap:16px}.side h2{font-family:var(--cond);font-size:12px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--ink-3);margin:0 0 8px}.grid2{display:grid;grid-template-columns:1fr 1fr;gap:5px}.grid3{display:grid;grid-template-columns:1fr 1fr 1fr;gap:5px}.chip{font-size:11.5px;padding:7px 4px;border-radius:7px;border:1px solid var(--line);background:var(--panel-2);color:var(--ink);cursor:pointer;font-weight:600;text-transform:capitalize}.chip.on{background:var(--accent);color:var(--accent-ink);border-color:var(--accent)}.toast{position:fixed;left:50%;bottom:86px;transform:translate(-50%);background:#1c2026;border:1px solid #384049;color:var(--ink);padding:11px 16px;border-radius:10px;font-size:13px;box-shadow:0 8px 30px #00000080;z-index:60;max-width:80vw}@media (max-width:900px){.app{grid-template-columns:52px 1fr;height:auto;max-height:none}.side{grid-column:1/-1;border-left:none;border-top:1px solid var(--line)}}.topbar{height:46px;display:flex;align-items:center;gap:8px;padding:0 12px;background:var(--panel);border-bottom:1px solid var(--line)}.brand{font-family:var(--cond);font-size:15px;font-weight:700;letter-spacing:.06em;text-transform:uppercase;white-space:nowrap;display:flex;flex-direction:column;line-height:1}.brand em{font-size:8.5px;font-weight:600;letter-spacing:.18em;font-style:normal;color:var(--ink-3);margin-top:2px}.titlefield{background:var(--panel-2);border:1px solid var(--line);border-radius:8px;color:var(--ink);font:600 13px var(--sans);padding:7px 11px;min-width:150px;max-width:280px}.titlefield:focus{outline:none;border-color:var(--accent)}.saving{font-size:11.5px;color:var(--ink-3);white-space:nowrap}.pill{font-size:11px;font-weight:700;letter-spacing:.05em;text-transform:uppercase;background:var(--panel-2);border:1px solid var(--line);border-radius:999px;padding:5px 10px;color:var(--ink-2);white-space:nowrap}.signin{display:flex;gap:6px;align-items:center}.modal-wrap{position:fixed;inset:0;background:#0000009e;display:flex;align-items:center;justify-content:center;z-index:80;padding:20px}.modal{background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:20px;width:min(420px,100%);max-height:88vh;overflow-y:auto;box-shadow:0 24px 70px #0009}.modal h1{font-family:var(--cond);font-size:20px;letter-spacing:.05em;text-transform:uppercase;margin:0 0 14px}.modal h3{font-family:var(--cond);font-size:11.5px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--ink-3);margin:14px 0 6px}.meta{font-size:12px;color:var(--ink-3);margin:14px 0}.err{font-size:12.5px;color:#ff8080;margin:10px 0}.btn.wide{display:block;width:100%;margin-top:8px;text-align:center;text-decoration:none;padding:11px}.rows{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:5px}.rows li{display:flex;gap:5px}.rowbtn{flex:1;display:flex;justify-content:space-between;align-items:baseline;gap:10px;background:var(--panel-2);border:1px solid var(--line);border-radius:8px;padding:10px 12px;color:var(--ink);cursor:pointer;font-size:13px;text-align:left}.rowbtn:hover{background:#232830}.rowbtn span{font-size:11px;color:var(--ink-3)}.chip:disabled{opacity:.35;cursor:default}.drills{display:flex;flex-direction:column;gap:5px}.drill{text-align:left;background:var(--panel-2);border:1px solid var(--line);border-radius:8px;padding:8px 10px;color:var(--ink);cursor:pointer;display:flex;flex-direction:column;gap:2px}.drill:hover{background:#232830;border-color:#3a424c}.drill b{font-size:12.5px;font-weight:600}.drill span{font-size:10.5px;color:var(--ink-3);line-height:1.35}.sidenote{font-size:10.5px;color:var(--ink-3);margin:6px 0 0;line-height:1.4}.field{width:100%;background:var(--panel-2);border:1px solid var(--line);border-radius:8px;color:var(--ink);font:400 14px var(--sans);padding:10px 12px}.field:focus{outline:none;border-color:var(--accent)}.authswitch{display:flex;flex-wrap:wrap;gap:14px;margin:16px 0 4px}.authswitch button{background:none;border:0;padding:0;color:var(--ink-2);font:500 12.5px var(--sans);cursor:pointer;text-decoration:underline;text-underline-offset:3px}.authswitch button:hover{color:var(--ink)}.menu{position:relative}.menubtn{display:flex;align-items:center;gap:7px;background:var(--panel);color:var(--ink);border:1px solid var(--line);border-radius:8px;padding:7px 11px;cursor:pointer;font:600 12.5px var(--sans)}.menubtn:hover{background:var(--panel-2)}.menubtn.on{border-color:var(--accent)}.menubtn b{font-weight:700;color:var(--accent)}.menubtn svg{color:var(--ink-3);margin-left:1px}.menubtn:focus-visible{outline:2px solid var(--accent);outline-offset:2px}.menupop{position:absolute;top:calc(100% + 5px);background:var(--panel);border:1px solid var(--line-2,#3A424C);border-radius:10px;padding:9px;z-index:50;box-shadow:0 14px 40px #0000008c;max-height:70vh;overflow-y:auto}.menupop.left{left:0}.menupop.right{right:0}@media (max-width:900px){.menupop{max-width:calc(100vw - 28px)}}.menuhead{font-family:var(--cond);font-size:11px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--ink-3);margin:12px 0 6px}.menupop .sidenote{margin-top:8px}.booting{display:grid;place-items:center;height:100vh;color:var(--ink-3);font-size:14px}.gate{display:grid;min-height:100vh;background:var(--bg)}@media (min-width:860px){.gate{grid-template-columns:1.05fr .95fr}}.gate-pitch{display:flex;flex-direction:column;justify-content:center;gap:20px;padding:clamp(32px,6vw,72px);background:linear-gradient(180deg,#31c56b1a,#31c56b00 60%),repeating-linear-gradient(90deg,#14181a 0 44px,#171c1e 44px 88px);border-right:1px solid var(--line)}.gate-pitch 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