:root{--primary-comm:#3b82f6;--bg-comm:#fff;--text-comm:#1e293b;--border:#f1f5f9}body[data-theme=community]{background-color:var(--bg-comm);color:var(--text-comm);margin:0;font-family:Inter,sans-serif;display:flex;flex-direction:column;min-height:100vh}.container{max-width:1280px;margin:0 auto;padding:0 1.5rem}.comm-header{height:60px;background:#fff;border-bottom:1px solid var(--border);display:flex;align-items:center;position:-webkit-sticky;position:sticky;top:0;z-index:100}.comm-header .container{display:flex;justify-content:space-between;align-items:center;width:100%}.comm-header .logo{font-weight:800;font-size:1.25rem;color:var(--primary-comm)}.search-bar input{background:#f1f5f9;border:none;padding:.5rem 1.5rem;border-radius:100px;width:400px;font-size:.9rem}.header-nav{gap:1.5rem}.header-nav,.user-avatar{display:flex;align-items:center}.user-avatar{width:32px;height:32px;background:#333;color:#fff;border-radius:50%;justify-content:center;font-size:.75rem;font-weight:700}.layout-grid{display:grid;grid-template-columns:240px 1fr 300px;grid-gap:2rem;gap:2rem;padding-top:2rem;max-width:1280px;margin:0 auto;width:100%}.sidebar-left nav ul{list-style:none;padding:0}.sidebar-left nav li{padding:.75rem 1rem;border-radius:8px;font-weight:600;margin-bottom:.25rem;cursor:pointer;color:#64748b}.sidebar-left nav li.active,.sidebar-left nav li:hover{background:#f1f5f9;color:var(--primary-comm)}.thread-card{background:#fff;border:1px solid var(--border);border-radius:12px;padding:1.5rem;margin-bottom:1rem;transition:border-color .2s;cursor:pointer}.thread-card:hover{border-color:var(--primary-comm)}.thread-meta{display:flex;gap:1rem;font-size:.8rem;color:#64748b;margin-bottom:.5rem}.thread-card h3{font-size:1.2rem;margin-bottom:1rem}.sidebar-right .container{background:#f8fafc;padding:1.5rem;border-radius:12px}.trending-list{list-style:none;padding:0;margin-top:1rem}.trending-list li{margin-bottom:.75rem;font-weight:700;color:var(--primary-comm);cursor:pointer}