:root{--bg-primary: #121212;--bg-secondary: #1e1e1e;--text-primary: #e0e0e0;--text-secondary: #a0a0a0;--accent: #bb86fc;--accent-hover: #9965f4;--border: #333333;--font-sans: "Inter", system-ui, -apple-system, sans-serif}body{margin:0;font-family:var(--font-sans);background-color:var(--bg-primary);color:var(--text-primary);line-height:1.6}*{box-sizing:border-box}a{color:var(--accent);text-decoration:none;transition:color .2s}a:hover{color:var(--accent-hover)}.container{max-width:1200px;margin:0 auto;padding:2rem}.header{display:flex;justify-content:space-between;align-items:center;margin-bottom:2rem;padding-bottom:1rem;border-bottom:1px solid var(--border)}.btn{background-color:var(--bg-secondary);color:var(--text-primary);border:1px solid var(--border);padding:.5rem 1rem;border-radius:4px;cursor:pointer;transition:all .2s;display:inline-flex;align-items:center;gap:.5rem}.btn:hover{background-color:var(--border)}.btn-primary{background-color:var(--accent);color:#000;border-color:var(--accent);font-weight:600}.btn-primary:hover{background-color:var(--accent-hover);border-color:var(--accent-hover);filter:brightness(1.1);color:#000}.card{background-color:var(--bg-secondary);padding:1.5rem;border-radius:8px;border:1px solid var(--border);transition:transform .2s,box-shadow .2s}.card:hover{transform:translateY(-2px);box-shadow:0 4px 12px #0000004d}input,textarea{background-color:var(--bg-primary);color:var(--text-primary);border:1px solid var(--border);padding:.5rem;border-radius:4px;width:100%;font-family:inherit}input:focus,textarea:focus{outline:none;border-color:var(--accent)}.markdown-body{color:var(--text-primary)}.markdown-body h1,.markdown-body h2,.markdown-body h3{border-bottom:1px solid var(--border);padding-bottom:.5rem;margin-top:2rem}.markdown-body code{background-color:var(--bg-secondary);padding:.2rem .4rem;border-radius:4px}.markdown-body pre{background-color:var(--bg-secondary);padding:1rem;border-radius:8px;overflow-x:auto}.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:1.5rem}.list-view{max-width:800px;margin:0 auto}.list-item{border-bottom:1px solid var(--border)}.list-item:last-child{border-bottom:none}.list-item-link{display:block;padding:1rem;transition:background-color .2s;border-radius:4px}.list-item-link:hover{background-color:var(--bg-secondary)}.tag{display:inline-flex;align-items:center;gap:.25rem;background-color:var(--bg-secondary);color:var(--accent);padding:.35rem .75rem;border-radius:16px;font-size:.85rem;border:1px solid var(--border);cursor:pointer;transition:all .2s}.tag[data-tag*=technology],.tag-small:nth-child(1){background-color:#3b82f626;color:#60a5fa;border-color:#3b82f64d}.tag[data-tag*=entrepreneurship],.tag-small:nth-child(2){background-color:#10b98126;color:#34d399;border-color:#10b9814d}.tag[data-tag*=life],.tag-small:nth-child(3){background-color:#ec489926;color:#f472b6;border-color:#ec48994d}.tag[data-tag*=psychology],.tag-small:nth-child(4){background-color:#a855f726;color:#a78bfa;border-color:#a855f74d}.tag[data-tag*=history],.tag-small:nth-child(5){background-color:#fb923c26;color:#fb923c;border-color:#fb923c4d}.tag[data-tag*=innovation],.tag-small:nth-child(6){background-color:#34d39926;color:#34d399;border-color:#34d3994d}.tag[data-tag*=ideas],.tag-small:nth-child(7){background-color:#fbbf2426;color:#fbbf24;border-color:#fbbf244d}.tag[data-tag*=lessons],.tag-small:nth-child(8){background-color:#818cf826;color:#818cf8;border-color:#818cf84d}.tag[data-tag*=customers],.tag-small:nth-child(9){background-color:#fb718526;color:#fb7185;border-color:#fb71854d}.tag:hover{filter:brightness(1.2);transform:translateY(-1px)}.tag-selected{background-color:var(--accent);color:#000;border-color:var(--accent);font-weight:600}.tag-selected:hover{background-color:var(--accent-hover);border-color:var(--accent-hover);filter:brightness(1.1)}.tag-small{padding:.2rem .5rem;font-size:.75rem;cursor:default;pointer-events:none}