:root{--bg-primary: #1a1a2e;--bg-secondary: #16213e;--bg-card: #0f3460;--accent: #e94560;--text-primary: #eee;--text-secondary: #aaa;--border: #2a3a5c}*{margin:0;padding:0;box-sizing:border-box}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;background:var(--bg-primary);color:var(--text-primary);min-height:100vh}#app{max-width:960px;margin:0 auto;padding:2rem 1rem}header{text-align:center;margin-bottom:2rem}header h1{font-size:2.4rem;color:var(--accent);margin-bottom:.3rem}.subtitle{color:var(--text-secondary);font-size:.95rem}nav{display:flex;gap:.5rem;margin-bottom:2rem;flex-wrap:wrap}.nav-btn{flex:1;min-width:80px;padding:.6rem 1rem;border:1px solid var(--border);background:var(--bg-secondary);color:var(--text-secondary);border-radius:6px;cursor:pointer;font-size:.9rem;transition:all .2s}.nav-btn:hover{border-color:var(--accent);color:var(--text-primary)}.nav-btn.active{background:var(--accent);color:#fff;border-color:var(--accent)}main{min-height:400px}.card{background:var(--bg-card);border:1px solid var(--border);border-radius:8px;padding:1.5rem;margin-bottom:1rem}.card h2{font-size:1.3rem;margin-bottom:.8rem}.card p{color:var(--text-secondary);line-height:1.6}.stat-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:1rem;margin-top:1rem}.stat-item{background:var(--bg-secondary);border-radius:6px;padding:1rem;text-align:center}.stat-value{font-size:1.8rem;font-weight:700;color:var(--accent)}.stat-label{font-size:.8rem;color:var(--text-secondary);margin-top:.3rem}.placeholder{text-align:center;padding:3rem 1rem;color:var(--text-secondary)}footer{text-align:center;margin-top:3rem;padding-top:1rem;border-top:1px solid var(--border);color:var(--text-secondary);font-size:.8rem}