:root{font-family:system-ui,Avenir,Helvetica,Arial,sans-serif;line-height:1.5;font-weight:400;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}a{font-weight:500;color:#646cff;text-decoration:inherit}a:hover{color:#535bf2}body{margin:0;display:block;min-width:320px;min-height:100svh;min-height:100dvh;background:transparent}h1{font-size:3.2em;line-height:1.1}button{border-radius:8px;border:1px solid transparent;padding:.6em 1.2em;font-size:1em;font-weight:500;font-family:inherit;background-color:inherit;cursor:pointer;transition:border-color .25s}button:hover{border-color:#646cff}button:focus,button:focus-visible{outline:4px auto -webkit-focus-ring-color}:root{--bg: #f6f8f9;--panel: #ffffff;--ink: #1f2937;--muted: #6b7280;--primary: #356854;--primary-ink: #ffffff;--border: #e5e7eb;--accent: #e8eaed}*{box-sizing:border-box}html,body,#root{height:100%;overscroll-behavior-y:none}html{height:-webkit-fill-available}body{margin:0;font-family:Inter,system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;color:var(--ink);background:var(--bg)}body{display:block;place-items:normal;min-height:100%;height:100%;overflow:hidden}#root{width:100%;height:100%}.app{height:100vh;height:100svh;height:100dvh;contain:layout paint;overscroll-behavior-y:contain;overflow-y:auto;-webkit-overflow-scrolling:touch;padding-bottom:env(safe-area-inset-bottom)}body.modal-open,body.modal-open .app{overflow:hidden}.app-header{display:flex;align-items:center;justify-content:space-between;padding:10px 16px;background:var(--panel);border-bottom:1px solid var(--border);position:sticky;top:0;z-index:100}.brand{display:flex;align-items:center;gap:10px}.brand h1{font-size:18px;margin:0}.logo-circle{display:inline-flex;align-items:center;justify-content:center;width:28px;height:28px;border-radius:50%;background:var(--primary);color:var(--primary-ink)}.logo-img{width:36px;height:36px;border-radius:6px;object-fit:cover}.actions{display:flex;gap:8px}.hamburger{display:none;background:transparent;border:1px solid var(--border);border-radius:8px;padding:6px 10px}.mobile-menu{display:none;position:absolute;right:12px;top:58px;background:var(--panel);border:1px solid var(--border);border-radius:10px;padding:8px;min-width:180px;box-shadow:0 8px 24px #00000014;z-index:2000}.mobile-menu a,.mobile-menu button{display:block;width:100%;text-align:left;padding:8px 10px;border-radius:8px;border:1px solid transparent;background:transparent;color:var(--ink);cursor:pointer}.mobile-menu a:hover,.mobile-menu button:hover{background:var(--accent);border-color:var(--border)}.btn{padding:8px 12px;border:1px solid var(--border);background:var(--panel);border-radius:8px;cursor:pointer;color:var(--ink)}.btn:hover{background:#f3f4f6}.btn.primary{background:var(--primary);color:var(--primary-ink);border-color:transparent}.btn.primary:hover{filter:brightness(1.05)}.icon-btn{display:inline-flex;align-items:center;justify-content:center;gap:4px;padding:0 6px;min-width:0;height:24px;border-radius:6px;border:1px solid transparent;background:transparent;color:var(--muted);cursor:pointer;font-size:12px;line-height:1}.icon-btn:hover{background:var(--accent);color:var(--ink);border-color:var(--border)}.icon-btn.add,.icon-btn.edit,.icon-btn.delete{color:var(--muted)}.icon-btn.delete:hover{color:#b91c1c}.layout{display:grid;grid-template-columns:1fr;gap:12px;padding:12px;width:100%;max-width:none;margin:0}.layout.two-col{grid-template-columns:280px 1fr;align-items:start}.layout.three-col{grid-template-columns:minmax(290px,320px) minmax(600px,1fr) minmax(420px,1.05fr);align-items:start;grid-template-areas:"sidebar canvas graph"}.sidebar,.graph-sidebar{background:var(--panel);border:1px solid var(--border);border-radius:12px;padding:12px;color:var(--ink)}.sidebar{grid-area:sidebar}.canvas{grid-area:canvas}.graph-sidebar{grid-area:graph}.palette{display:grid;gap:8px}.palette-header{display:flex;align-items:center;justify-content:space-between}.palette-header h2{font-size:16px;margin:0}.palette-search input{width:100%;padding:8px 10px;border:1px solid var(--border);border-radius:8px}.palette-search input{color:var(--ink);background:var(--panel)}.palette-list{display:grid;gap:6px;max-height:calc(100svh - 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