*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}

    :root{
        --bg:#1a1a2e;
        --bg-side:#1e1e34;
        --bg-card:#242444;
        --bg-card-h:#2c2c50;
        --bg-input:#242444;
        --text:#e8e8f0;
        --text-dim:#9898b0;
        --text-muted:#606078;
        --accent:#7c6cf0;
        --accent-h:#8d7ff5;
        --accent-sub:rgba(124,108,240,0.1);
        --border:rgba(255,255,255,0.07);
        --border-h:rgba(255,255,255,0.12);
        --r:10px;
        --r-lg:14px;
        --font:'DM Sans',-apple-system,BlinkMacSystemFont,sans-serif;
        --mono:'Space Mono',monospace;
        --header-h:60px;
        --sidebar-w:260px;
    }

    html{scroll-behavior:smooth}
    body{font-family:var(--font);background:var(--bg);color:#e8e8ed;line-height:1.5;min-height:100vh;-webkit-font-smoothing:antialiased}
    a{color:inherit;text-decoration:none}
    button{cursor:pointer;font-family:inherit;border:none;background:none}
    img{display:block;max-width:100%}

    ::-webkit-scrollbar{width:5px}
    ::-webkit-scrollbar-track{background:transparent}
    ::-webkit-scrollbar-thumb{background:var(--text-muted);border-radius:3px}

    /* === HEADER === */
    .header{
        position:sticky;top:0;z-index:100;
        background:rgba(26,26,46,0.9);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
        border-bottom:1px solid rgba(255,255,255,0.06);
    }
    .header-inner{
        display:flex;align-items:center;height:var(--header-h);
        padding:0 20px;gap:14px;
        max-width:1500px;margin:0 auto;
    }
    .logo{font-family:var(--mono);font-size:18px;font-weight:700;letter-spacing:-0.5px;white-space:nowrap;flex-shrink:0}
    .logo span{color:var(--accent)}

    .search-bar{flex:1;max-width:520px;position:relative}
    .search-bar input{
        width:100%;height:40px;padding:0 42px 0 16px;
        background:var(--bg-input);border:1px solid var(--border);border-radius:20px;
        color:#e8e8ed;font-size:14px;font-family:var(--font);outline:none;
        transition:border-color .2s,box-shadow .2s;
    }
    .search-bar input::placeholder{color:var(--text-muted)}
    .search-bar input:focus{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-sub)}
    .search-bar .search-submit{
        position:absolute;right:4px;top:50%;transform:translateY(-50%);
        width:32px;height:32px;display:flex;align-items:center;justify-content:center;
        color:var(--text-muted);border-radius:50%;transition:color .2s,background .2s;
    }
    .search-bar .search-submit:hover{color:var(--accent);background:var(--accent-sub)}

    .autocomplete-dropdown{
        position:absolute;top:calc(100% + 4px);left:0;right:0;
        background:var(--bg-card);border:1px solid rgba(255,255,255,0.12);border-radius:var(--r);
        overflow:hidden;display:none;z-index:200;box-shadow:0 12px 40px rgba(0,0,0,.5);
    }
    .autocomplete-dropdown.active{display:block}
    .autocomplete-item{padding:10px 16px;font-size:14px;color:var(--text-dim);cursor:pointer;transition:background .15s}
    .autocomplete-item:hover,.autocomplete-item.active{background:var(--accent-sub);color:#e8e8ed}

    .header-actions{display:flex;align-items:center;gap:6px;flex-shrink:0;margin-left:auto}
    .header-btn{height:36px;padding:0 10px;display:flex;align-items:center;gap:5px;border-radius:var(--r);color:var(--text-dim);font-size:12px;font-weight:500;transition:color .2s,background .2s}
    .header-btn:hover{color:#e8e8ed;background:var(--accent-sub)}
    .lang-select{height:34px;padding:0 8px;background:var(--bg-input);border:1px solid var(--border);border-radius:var(--r);color:var(--text-dim);font-size:12px;font-family:var(--font);outline:none;cursor:pointer}
    .avatar{width:30px;height:30px;border-radius:50%;object-fit:cover;border:2px solid var(--border)}
    .login-btn{height:34px;padding:0 16px;background:var(--accent);color:#fff;font-size:13px;font-weight:600;border-radius:20px;transition:background .2s}
    .login-btn:hover{background:var(--accent-h)}
    .user-menu-wrapper{position:relative}
    .user-menu-trigger{cursor:pointer;display:flex;align-items:center;gap:6px;padding:4px;border-radius:20px;transition:background .2s}
    .user-menu-trigger:hover{background:rgba(124,108,240,0.12)}
    .user-menu-trigger .avatar{transition:border-color .2s}
    .user-menu-trigger:hover .avatar{border-color:var(--accent)}
    .user-menu-caret{color:#5a5a6e;transition:transform .2s}
    .user-menu-wrapper.open .user-menu-caret{transform:rotate(180deg)}
    .user-dropdown{position:absolute;top:calc(100% + 8px);right:0;width:220px;background:#12121a;border:1px solid rgba(255,255,255,0.12);border-radius:12px;box-shadow:0 8px 32px rgba(0,0,0,.5);overflow:hidden;opacity:0;visibility:hidden;transform:translateY(-8px);transition:all .2s;z-index:300}
    .user-menu-wrapper.open .user-dropdown{opacity:1;visibility:visible;transform:translateY(0)}
    .dropdown-header{padding:14px 16px;border-bottom:1px solid rgba(255,255,255,0.06)}
    .dropdown-name{font-size:14px;font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
    .dropdown-email{font-size:12px;color:#5a5a6e;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
    .dropdown-items{padding:6px 0}
    .dropdown-item{display:flex;align-items:center;gap:10px;padding:10px 16px;font-size:13px;color:#8b8b9e;transition:background .15s,color .15s}
    .dropdown-item:hover{background:rgba(124,108,240,0.12);color:#e8e8ed}
    .dropdown-item svg{flex-shrink:0}
    .dropdown-divider{height:1px;background:var(--border);margin:4px 0}
    .dropdown-danger{color:#f04d5a}
    .dropdown-danger:hover{background:rgba(240,77,90,.1)}

    /* === LAYOUT === */
    .layout{display:flex;min-height:calc(100vh - var(--header-h));max-width:1500px;margin:0 auto}

    /* === SIDEBAR (3dgo style) === */
    .sidebar{
        width:var(--sidebar-w);flex-shrink:0;
        background:var(--bg-side);border-right:1px solid var(--border);
        overflow-y:auto;height:calc(100vh - var(--header-h));
        position:sticky;top:var(--header-h);
        padding:16px 12px;
    }

    .sb-section{margin-bottom:8px;background:var(--bg-card);border-radius:var(--r-lg);overflow:hidden}

    .sb-header{
        display:flex;align-items:center;justify-content:space-between;
        padding:14px 16px;cursor:pointer;user-select:none;
        transition:background .15s;
    }
    .sb-header:hover{background:var(--bg-card-h)}
    .sb-header-left{display:flex;align-items:center;gap:10px;font-size:14px;font-weight:600;color:#e8e8ed}
    .sb-header-left svg{color:var(--text-dim);flex-shrink:0}
    .sb-chevron{color:var(--text-muted);transition:transform .2s;flex-shrink:0}
    .sb-section.collapsed .sb-chevron{transform:rotate(-90deg)}

    .sb-body{padding:4px 8px 12px;display:block}
    .sb-section.collapsed .sb-body{display:none}

    .sb-item{
        display:flex;align-items:center;gap:10px;
        padding:10px 12px;border-radius:var(--r);
        font-size:13px;color:var(--text-dim);
        transition:background .15s,color .15s;cursor:pointer;
    }
    .sb-item:hover{background:var(--accent-sub);color:#e8e8ed}
    .sb-item.active{color:var(--accent);font-weight:600}
    .sb-item .sb-icon{flex-shrink:0;width:20px;height:20px;display:flex;align-items:center;justify-content:center}
    .sb-item .sb-check{margin-left:auto;width:18px;height:18px;border-radius:50%;display:flex;align-items:center;justify-content:center}
    .sb-item.active .sb-check{background:var(--accent);color:#fff}
    .sb-item .sb-check svg{width:12px;height:12px}

    /* Sort items in sidebar */
    .sb-sort-item{
        display:flex;align-items:center;gap:10px;
        padding:10px 12px;border-radius:var(--r);
        font-size:13px;color:var(--text-dim);transition:all .15s;
    }
    .sb-sort-item:hover{background:var(--accent-sub);color:#e8e8ed}
    .sb-sort-item.active{color:var(--accent);font-weight:600}

    /* Category items */
    .cat-search-input{
        width:100%;height:34px;padding:0 10px;margin-bottom:6px;
        background:var(--bg-side);border:1px solid var(--border);border-radius:var(--r);
        color:#e8e8ed;font-size:12px;font-family:var(--font);outline:none;
    }
    .cat-search-input:focus{border-color:var(--accent)}
    .cat-search-input::placeholder{color:var(--text-muted)}

    .sb-cat-list{max-height:300px;overflow-y:auto}
    .sb-cat-item{
        display:block;padding:8px 12px;border-radius:var(--r);
        font-size:13px;color:var(--text-dim);transition:all .15s;
    }
    .sb-cat-item:hover{background:var(--accent-sub);color:#e8e8ed}
    .sb-cat-item.active{color:var(--accent);font-weight:600}

    .cat-toggle-btn{
        display:block;width:100%;padding:8px 12px;margin-top:4px;
        font-size:12px;color:var(--accent);text-align:left;
        border-radius:var(--r);transition:background .15s;cursor:pointer;
    }
    .cat-toggle-btn:hover{background:var(--accent-sub)}

    /* === MAIN === */
    .main{flex:1;min-width:0;padding:24px 40px 40px}

    /* Controls */
    .controls-bar{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px;flex-wrap:wrap;gap:12px}
    .results-info{font-size:14px;color:var(--text-dim)}
    .results-info strong{color:#e8e8ed}

    /* Active filters */
    .active-filters{display:flex;gap:8px;margin-bottom:14px;flex-wrap:wrap}
    .filter-chip{
        display:inline-flex;align-items:center;gap:6px;
        padding:6px 14px;background:var(--accent-sub);
        border:1px solid rgba(124,108,240,.3);border-radius:20px;
        font-size:12px;color:var(--accent);font-weight:500;
    }
    .filter-chip .remove{width:16px;height:16px;display:flex;align-items:center;justify-content:center;border-radius:50%;font-size:14px;transition:background .15s}
    .filter-chip .remove:hover{background:rgba(124,108,240,.2)}

    /* Trending */
    .trending-bar{display:flex;align-items:center;gap:8px;margin-bottom:20px;flex-wrap:wrap}
    .trending-label{font-size:12px;font-weight:600;color:var(--accent);text-transform:uppercase;letter-spacing:.5px;flex-shrink:0}
    .trending-pill{padding:5px 14px;font-size:12px;color:var(--text-dim);background:var(--bg-card);border:1px solid var(--border);border-radius:20px;transition:all .15s;white-space:nowrap}
    .trending-pill:hover{background:var(--accent-sub);border-color:var(--accent);color:#e8e8ed}

    /* === MODEL GRID – 4 per row === */
    .model-grid{
        display:grid;
        grid-template-columns:repeat(4, 1fr);
        gap:18px;
    }

    .model-card{
        background:var(--bg-card);border-radius:var(--r-lg);
        border:1px solid var(--border);overflow:hidden;
        transition:transform .2s,border-color .2s,box-shadow .2s;
        position:relative;
    }
    .model-card:hover{transform:translateY(-3px);border-color:var(--border-h);box-shadow:0 10px 30px rgba(0,0,0,.35)}

    .card-link{display:block;color:inherit;text-decoration:none}
    .card-img{position:relative;aspect-ratio:4/3;overflow:hidden;background:#1a1a30}
    .card-img img{width:100%;height:100%;object-fit:cover;transition:transform .4s}
    .model-card:hover .card-img img{transform:scale(1.05)}

    .card-source{
        position:absolute;top:8px;left:8px;
        padding:3px 8px;border-radius:6px;
        font-size:10px;font-weight:700;text-transform:uppercase;letter-spacing:.5px;
        backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);
    }
    .card-source.printables{background:rgba(250,104,49,.85);color:#fff}
    .card-source.thingiverse{background:rgba(36,139,251,.85);color:#fff}
    .card-source.myminifactory{background:rgba(45,178,128,.85);color:#fff}
    .card-source.cults3d{background:rgba(214,51,132,.85);color:#fff}
    .card-source.makerworld,.card-source.MakerWorld{background:rgba(0,174,66,.85);color:#fff}
    .card-source.makeronline,.card-source.MakerOnline{background:rgba(0,150,214,.85);color:#fff}

    .wish-btn{
        position:absolute;top:8px;right:8px;z-index:5;
        width:32px;height:32px;display:flex;align-items:center;justify-content:center;
        background:rgba(0,0,0,.4);backdrop-filter:blur(4px);-webkit-backdrop-filter:blur(4px);
        border-radius:50%;color:#fff;opacity:0;transition:opacity .2s,transform .15s;
    }
    .model-card:hover .wish-btn{opacity:1}
    .wish-btn:hover{transform:scale(1.15)}
    .wish-btn.active{opacity:1;color:#f04d5a}
    .col-btn{position:absolute;top:8px;right:46px;z-index:5;width:32px;height:32px;display:flex;align-items:center;justify-content:center;background:rgba(0,0,0,.4);backdrop-filter:blur(4px);border-radius:50%;color:#fff;opacity:0;transition:opacity .2s,transform .15s}
    .model-card:hover .col-btn{opacity:1}
    .col-btn:hover{transform:scale(1.15)}
    .col-btn svg{fill:none;stroke:currentColor;stroke-width:2}
    .col-modal-overlay{position:fixed;inset:0;background:rgba(0,0,0,.6);z-index:500;display:none;align-items:center;justify-content:center}
    .col-modal-overlay.active{display:flex}
    .col-modal{background:#16161f;border:1px solid rgba(255,255,255,.12);border-radius:16px;width:360px;max-width:90vw;max-height:70vh;overflow:hidden;box-shadow:0 16px 48px rgba(0,0,0,.5)}
    .col-modal-head{padding:16px 20px;border-bottom:1px solid rgba(255,255,255,.06);display:flex;align-items:center;justify-content:space-between}
    .col-modal-head h3{font-size:16px;font-weight:600;margin:0}
    .col-modal-close{width:32px;height:32px;display:flex;align-items:center;justify-content:center;border-radius:8px;color:#8b8b9e;cursor:pointer;transition:background .2s}
    .col-modal-close:hover{background:rgba(255,255,255,.08)}
    .col-modal-body{padding:12px 20px;overflow-y:auto;max-height:40vh}
    .col-modal-item{display:flex;align-items:center;gap:12px;padding:10px 0;border-bottom:1px solid rgba(255,255,255,.04);cursor:pointer;transition:opacity .2s}
    .col-modal-item:last-child{border-bottom:none}
    .col-modal-item:hover{opacity:.8}
    .col-check{width:20px;height:20px;border-radius:6px;border:2px solid #5a5a6e;display:flex;align-items:center;justify-content:center;flex-shrink:0;transition:all .2s}
    .col-check.checked{background:#7c6cf0;border-color:#7c6cf0}
    .col-item-name{font-size:14px;flex:1;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
    .col-item-count{font-size:12px;color:#5a5a6e}
    .col-modal-foot{padding:12px 20px;border-top:1px solid rgba(255,255,255,.06)}
    .col-new-btn{width:100%;padding:10px;background:rgba(124,108,240,.12);color:#7c6cf0;font-size:13px;font-weight:600;border-radius:10px;text-align:center;cursor:pointer;transition:background .2s;border:none;font-family:inherit}
    .col-new-btn:hover{background:rgba(124,108,240,.2)}

    .card-body{padding:12px 14px 10px}
    .card-title{
        font-size:13px;font-weight:600;line-height:1.3;
        display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
        margin-bottom:6px;color:#e8e8ed;
    }

    .card-meta{display:flex;align-items:center;justify-content:space-between;font-size:12px;color:var(--text-muted)}
    .card-designer{display:flex;align-items:center;gap:5px;overflow:hidden;white-space:nowrap;text-overflow:ellipsis;max-width:60%}
    .card-designer svg{width:14px;height:14px;flex-shrink:0;color:var(--text-muted)}
    .card-likes{display:flex;align-items:center;gap:4px;flex-shrink:0}
    .card-likes svg{width:13px;height:13px}

    .card-tags{display:flex;gap:4px;flex-wrap:wrap;margin-top:8px}
    .card-tag{padding:2px 7px;font-size:10px;background:rgba(255,255,255,.04);color:var(--text-muted);border-radius:4px}

    /* === PAGINATION === */
    .pagination{display:flex;justify-content:center;align-items:center;gap:4px;margin-top:32px;flex-wrap:wrap}
    .page-btn{min-width:38px;height:38px;display:flex;align-items:center;justify-content:center;padding:0 10px;font-size:13px;color:var(--text-dim);border-radius:var(--r);transition:all .15s}
    .page-btn:hover{background:var(--accent-sub);color:#e8e8ed}
    .page-btn.active{background:var(--accent);color:#fff;font-weight:600}
    .page-btn.disabled{opacity:.3;pointer-events:none}
    .page-ellipsis{color:var(--text-muted);font-size:13px;padding:0 4px}
    .results-count{text-align:center;margin-top:12px;font-size:12px;color:var(--text-muted)}

    .empty-state{text-align:center;padding:80px 20px}
    .empty-state svg{color:var(--text-muted);margin-bottom:16px}
    .empty-state h3{font-size:18px;margin-bottom:8px}
    .empty-state p{font-size:14px;color:var(--text-dim)}

    .footer{padding:28px 24px;border-top:1px solid var(--border);text-align:center}
    .footer a{color:var(--text-dim);transition:color .15s}
    .footer a:hover{color:var(--accent)}

    /* PWA bar */
    .pwa-bar{display:none;position:fixed;bottom:0;left:0;right:0;z-index:200;background:var(--bg-card);border-top:1px solid var(--border-h);padding:12px 24px;backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);align-items:center;justify-content:space-between;gap:12px;animation:slideUp .3s ease}
    .pwa-bar.show{display:flex}
    .pwa-bar-text{font-size:13px;color:var(--text-dim);display:flex;align-items:center;gap:10px}
    .pwa-bar-text img{width:32px;height:32px;border-radius:var(--r)}
    .pwa-bar-text strong{color:#e8e8ed}
    .pwa-bar-actions{display:flex;gap:8px;flex-shrink:0}
    .pwa-install-btn{height:34px;padding:0 16px;background:var(--accent);color:#fff;font-size:12px;font-weight:600;border-radius:20px}
    .pwa-install-btn:hover{background:var(--accent-h)}
    .pwa-dismiss-btn{height:34px;padding:0 12px;color:var(--text-muted);font-size:12px;border-radius:var(--r)}
    .pwa-dismiss-btn:hover{color:#e8e8ed}
    @keyframes slideUp{from{transform:translateY(100%)}to{transform:translateY(0)}}

    /* === MOBILE === */
    .sidebar-toggle{display:none;width:36px;height:36px;align-items:center;justify-content:center;border-radius:var(--r);color:var(--text-dim);flex-shrink:0}
    .sidebar-overlay{display:none;position:fixed;inset:0;background:rgba(0,0,0,.6);z-index:90}
    .sidebar-overlay.active{display:block}

    @media(max-width:1200px){
        .model-grid{grid-template-columns:repeat(3, 1fr);gap:14px}
    }
    @media(max-width:900px){
        .model-grid{grid-template-columns:repeat(2, 1fr);gap:12px}
    }
    @media(max-width:768px){
        .sidebar-toggle{display:flex}
        .header-inner{padding:8px 12px;gap:8px;height:auto;flex-wrap:wrap;min-height:54px}
        .search-bar{order:10;flex:1 1 100%;max-width:100%;padding-bottom:8px}
        .logo{font-size:16px}
        .header-actions{margin-left:auto}
        .sidebar{position:fixed;top:0;left:-100%;height:100vh;z-index:95;transition:left .3s ease;padding-top:calc(var(--header-h) + 16px)}
        .sidebar.open{left:0}
        .main{padding:14px 12px 32px}
        .model-grid{grid-template-columns:repeat(2, 1fr);gap:10px}
        .card-body{padding:8px 10px}
        .card-title{font-size:12px}
        .model-card:hover{transform:none;box-shadow:none}
        .model-card:hover .card-img img{transform:none}
        .wish-btn{opacity:.7}
        .col-btn{opacity:.7}
        .wish-btn.active{opacity:1}
        .hide-mobile{display:none}
    }

    @keyframes fadeIn{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}
    .model-card{animation:fadeIn .3s ease both}
    .model-card:nth-child(1){animation-delay:.02s}
    .model-card:nth-child(2){animation-delay:.04s}
    .model-card:nth-child(3){animation-delay:.06s}
    .model-card:nth-child(4){animation-delay:.08s}