:root{--bg:#f4f2ec;--surface:#fbfaf7;--surface2:#ebe8df;--ink:#17211c;--muted:#68716b;--line:rgba(23,33,28,.14);--green:#1d6048;--green2:#134434;--lime:#c6f06f;--blue:#71a8db;--purple:#9b86d8;--orange:#f0a15b;--shadow:0 24px 60px rgba(28,45,36,.12)}
html[data-theme=dark]{--bg:#101512;--surface:#171d19;--surface2:#202821;--ink:#f0f4ef;--muted:#a3ada6;--line:rgba(240,244,239,.12);--green:#79bd98;--green2:#193d2f;--shadow:0 24px 60px rgba(0,0,0,.3)}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;color:var(--ink);background:var(--bg);font-family:"DM Sans","Noto Sans SC",sans-serif;line-height:1.6;overflow-x:hidden}button,input{font:inherit}a{color:inherit;text-decoration:none}button{color:inherit}.ambient{position:fixed;border-radius:50%;filter:blur(100px);opacity:.18;pointer-events:none;z-index:-1}.ambient-one{width:520px;height:520px;background:var(--lime);top:-180px;right:-120px}.ambient-two{width:420px;height:420px;background:var(--blue);bottom:10%;left:-260px}
.topbar{width:min(1320px,calc(100% - 40px));height:76px;margin:14px auto 0;padding:0 22px;display:flex;align-items:center;justify-content:space-between;position:sticky;top:14px;z-index:20;background:color-mix(in srgb,var(--surface) 86%,transparent);border:1px solid var(--line);border-radius:18px;backdrop-filter:blur(18px)}.brand,.header-actions,.topnav{display:flex;align-items:center}.brand{gap:10px}.brand-mark{width:38px;height:38px;display:grid;place-items:center;border-radius:12px;background:var(--green);color:#fff;font-weight:900}.brand strong{display:block;line-height:1.05}.brand small{color:var(--muted);font-size:11px;letter-spacing:.12em}.topnav{gap:32px;font-size:14px;font-weight:600}.topnav a{position:relative}.topnav a:after{content:"";position:absolute;height:2px;left:0;right:100%;bottom:-7px;background:var(--green);transition:.2s}.topnav a:hover:after{right:0}.header-actions{gap:10px}.icon-button{width:40px;height:40px;border:1px solid var(--line);background:transparent;border-radius:12px;cursor:pointer}.source-link{padding:10px 15px;background:var(--ink);color:var(--surface);border-radius:12px;font-size:13px;font-weight:600}
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.hero-visual{min-height:560px;position:relative;display:grid;place-items:center}.orbit{position:absolute;border:1px dashed color-mix(in srgb,var(--green) 35%,transparent);border-radius:50%;animation:spin 28s linear infinite}.orbit:before{content:"";position:absolute;width:10px;height:10px;border-radius:50%;background:var(--lime);top:12%;left:12%;box-shadow:0 0 0 7px color-mix(in srgb,var(--lime) 18%,transparent)}.orbit-one{width:470px;height:470px}.orbit-two{width:350px;height:350px;animation-direction:reverse;animation-duration:20s}.core-card{width:276px;height:276px;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:28px;border-radius:50%;color:#fff;background:radial-gradient(circle at 35% 25%,#3f876c,var(--green2));box-shadow:0 30px 80px rgba(19,68,52,.32);position:relative;z-index:2}.core-pulse{position:absolute;inset:16px;border:1px solid rgba(255,255,255,.22);border-radius:50%}.core-label{font-size:11px;letter-spacing:.18em;color:var(--lime)}.core-card strong{margin:12px 0 8px;font-size:23px}.core-card small{opacity:.72;line-height:1.6}.float-card{position:absolute;min-width:128px;padding:13px 16px;display:grid;grid-template-columns:auto 1fr;gap:0 9px;align-items:center;border:1px solid var(--line);background:color-mix(in srgb,var(--surface) 91%,transparent);border-radius:16px;box-shadow:var(--shadow);backdrop-filter:blur(12px);z-index:3;animation:float 5s ease-in-out infinite}.float-card span{grid-row:span 2;color:var(--green);font-size:11px;font-weight:700}.float-card b{font-size:14px}.float-card small{color:var(--muted);font-size:11px}.card-brain{top:5%;left:12%}.card-tool{top:18%;right:0;animation-delay:-1s}.card-memory{bottom:10%;left:0;animation-delay:-2s}.card-guard{bottom:3%;right:12%;animation-delay:-3s}@keyframes spin{to{transform:rotate(360deg)}}@keyframes float{50%{transform:translateY(-10px)}}
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.tree-canvas{min-height:860px;position:relative;padding:110px 32px 40px;border:1px solid var(--line);border-radius:32px;background:linear-gradient(rgba(125,125,125,.035) 1px,transparent 1px),linear-gradient(90deg,rgba(125,125,125,.035) 1px,transparent 1px),var(--surface);background-size:38px 38px;overflow:hidden}.tree-lines{position:absolute;inset:0;width:100%;height:100%;pointer-events:none}.tree-lines path{fill:none;stroke:color-mix(in srgb,var(--green) 28%,transparent);stroke-width:1.5;stroke-dasharray:4 7}.tree-root{width:260px;min-height:72px;margin:-76px auto 40px;padding:14px;display:grid;grid-template-columns:42px 1fr;align-items:center;border-radius:18px;background:var(--ink);color:var(--surface);position:relative;z-index:2}.tree-root .root-icon{grid-row:span 2;width:36px;height:36px;display:grid;place-items:center;border-radius:12px;background:var(--lime);color:#17211c}.tree-root span{font-size:10px;opacity:.6;letter-spacing:.12em}.tree-root strong{font-size:13px}#nodesContainer{display:grid;grid-template-columns:repeat(4,1fr);gap:34px 22px;position:relative;z-index:2}.knowledge-node{min-height:164px;padding:20px;display:flex;flex-direction:column;border:1px solid var(--line);border-radius:20px;background:color-mix(in srgb,var(--surface) 95%,transparent);cursor:pointer;transition:.2s;position:relative}.knowledge-node:hover{transform:translateY(-5px);border-color:var(--node-color);box-shadow:0 20px 40px rgba(20,44,32,.1)}.knowledge-node.learned{box-shadow:inset 0 0 0 2px color-mix(in srgb,var(--node-color) 65%,transparent)}.knowledge-node.learned:after{content:"✓";position:absolute;top:14px;right:14px;width:23px;height:23px;display:grid;place-items:center;color:#fff;background:var(--node-color);border-radius:50%;font-size:12px}.node-top{display:flex;justify-content:space-between;align-items:center}.node-number{color:var(--node-color);font-size:10px;font-weight:800;letter-spacing:.14em}.node-icon{font-size:22px}.knowledge-node h3{margin:18px 0 6px;font-size:18px}.knowledge-node p{margin:0;color:var(--muted);font-size:12px;line-height:1.65}.node-footer{display:flex;justify-content:space-between;align-items:center;margin-top:auto;padding-top:14px;color:var(--muted);font-size:10px}.node-footer b{color:var(--ink);font-size:15px}.tree-canvas.list-view{min-height:auto}.tree-canvas.list-view #nodesContainer{grid-template-columns:repeat(2,1fr)}.tree-canvas.list-view .tree-lines{display:none}.empty-state{padding:70px;text-align:center;color:var(--muted)}.empty-state span{font-size:42px}.empty-state strong{display:block;color:var(--ink);font-size:19px}