.site-header{
    position:fixed;top:0;left:0;right:0;z-index:100;height:var(--header-height);
    background:var(--bg-header);backdrop-filter:blur(12px);border-bottom:2px solid var(--border);
    transition:background .3s
}
.header-inner{
    display:flex;align-items:center;justify-content:space-between;
    height:100%;max-width:1400px;margin:0 auto;padding:0 20px
}
.site-logo{
    font-family:var(--font-pixel);font-size:13px;color:var(--accent-purple);
    text-decoration:none;display:flex;align-items:center;gap:8px;transition:color var(--transition)
}
.site-logo:hover{color:var(--accent-cyan)}
.site-logo .logo-icon{width:20px;height:20px;color:var(--accent-purple)}
.header-right{display:flex;align-items:center;gap:12px}

.online-status{display:flex;align-items:center;gap:6px;font-size:10px;font-family:var(--font-pixel);color:var(--text-muted)}
.online-dot{width:8px;height:8px;background:var(--success);display:inline-block;animation:blink 2s steps(1) infinite}
.online-dot.offline{background:var(--error);animation:none}

.ping-display{font-size:10px;font-family:var(--font-mono);color:var(--accent-green);padding:3px 8px;background:rgba(110,214,154,0.08);border:1px solid rgba(110,214,154,0.12)}

.theme-btn{
    display:flex;align-items:center;justify-content:center;
    width:36px;height:36px;background:var(--bg-card);border:2px solid var(--border);
    cursor:pointer;transition:all var(--transition);color:var(--text-secondary);padding:0
}
.theme-btn:hover{border-color:var(--border-hover);color:var(--accent-purple);background:var(--bg-card-hover)}
.theme-btn i{width:16px;height:16px}

.main-content{margin-top:var(--header-height);min-height:calc(100vh - var(--header-height));transition:margin-left .3s ease}
.main-content.has-sidebar{margin-left:var(--sidebar-width)}
.main-content.has-sidebar.sidebar-mini{margin-left:var(--sidebar-mini)}
.page-body{padding:24px 20px 80px;max-width:1200px;margin:0 auto}

.sidebar{
    position:fixed;top:var(--header-height);left:0;bottom:0;width:var(--sidebar-width);
    background:var(--bg-secondary);border-right:2px solid var(--border);overflow-y:auto;overflow-x:hidden;
    z-index:50;transition:width .3s ease;padding:12px 0
}
.sidebar.collapsed{width:var(--sidebar-mini)}
.sidebar-cat{padding:0 12px;margin-bottom:6px}
.sidebar.collapsed .sidebar-cat{padding:0 6px}
.sidebar-cat-title{
    font-family:var(--font-pixel);font-size:7px;color:var(--text-muted);
    padding:8px 10px;display:flex;align-items:center;gap:8px;
    text-transform:uppercase;letter-spacing:1px;white-space:nowrap;overflow:hidden
}
.sidebar-cat-title i{width:14px;height:14px;opacity:0.6;flex-shrink:0}
.sidebar-cat-title .cat-text{transition:opacity .2s;overflow:hidden}
.sidebar.collapsed .sidebar-cat-title{justify-content:center;padding:8px 0}
.sidebar.collapsed .sidebar-cat-title .cat-text{opacity:0;width:0}
.sidebar-link{
    display:flex;align-items:center;gap:8px;padding:7px 10px;
    font-size:12px;color:var(--text-secondary);transition:all var(--transition);
    text-decoration:none;border-left:2px solid transparent;margin-left:4px;
    white-space:nowrap;overflow:hidden
}
.sidebar-link:hover{color:var(--text-primary);background:var(--bg-card);border-left-color:var(--accent-purple)}
.sidebar-link.active{color:var(--accent-purple);background:rgba(155,138,255,0.06);border-left-color:var(--accent-purple)}
.sidebar-link i{width:14px;height:14px;opacity:0.6;flex-shrink:0}
.sidebar-link .link-text{transition:opacity .2s;overflow:hidden}
.sidebar.collapsed .sidebar-link{justify-content:center;padding:7px 0;margin-left:0;border-left:none}
.sidebar.collapsed .sidebar-link .link-text{opacity:0;width:0}
.sidebar.collapsed .sidebar-link i{opacity:0.8}
.sidebar.collapsed .sidebar-link:hover i{color:var(--accent-purple);opacity:1}

.sidebar-collapse-btn{
    display:flex;align-items:center;justify-content:center;gap:6px;
    width:100%;padding:10px;margin-top:8px;border:none;border-top:2px solid var(--border);
    background:transparent;color:var(--text-muted);cursor:pointer;
    font-family:var(--font-pixel);font-size:7px;transition:all var(--transition);white-space:nowrap;overflow:hidden
}
.sidebar-collapse-btn:hover{color:var(--accent-purple);background:var(--bg-card)}
.sidebar-collapse-btn i{width:14px;height:14px;flex-shrink:0;transition:transform .3s}
.sidebar.collapsed .sidebar-collapse-btn i{transform:rotate(180deg)}
.sidebar.collapsed .sidebar-collapse-btn .collapse-text{opacity:0;width:0}

.sidebar-toggle-mobile{
    display:none;position:fixed;bottom:20px;left:20px;z-index:60;
    width:44px;height:44px;background:var(--accent-purple);color:#fff;
    border:none;cursor:pointer;align-items:center;justify-content:center
}

.breadcrumb{
    display:flex;align-items:center;gap:6px;font-size:12px;
    color:var(--text-muted);margin-bottom:20px;flex-wrap:wrap
}
.breadcrumb a{color:var(--text-secondary);font-size:12px}
.breadcrumb a:hover{color:var(--accent-purple)}
.breadcrumb .sep{color:var(--text-muted);font-size:8px;opacity:0.3}

.card{
    background:var(--bg-card);border:2px solid var(--border);padding:20px;
    transition:all var(--transition);position:relative
}
.card:hover{background:var(--bg-card-hover);border-color:var(--border-hover);transform:translateY(-2px)}
.card-icon{margin-bottom:10px;display:block;color:var(--accent-purple)}
.card-icon i{width:24px;height:24px}
.card-title{font-family:var(--font-pixel);font-size:9px;color:var(--text-primary);margin-bottom:6px;line-height:1.6}
.card-desc{font-size:13px;color:var(--text-secondary);line-height:1.5}

.tool-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:10px}
.tool-card{
    display:flex;align-items:center;gap:10px;background:var(--bg-card);
    border:2px solid var(--border);padding:12px 14px;text-decoration:none;
    color:var(--text-primary);transition:all var(--transition)
}
.tool-card:hover{background:var(--bg-card-hover);border-color:var(--border-hover);transform:translateX(4px);color:var(--text-primary)}
.tool-card .tool-icon{flex-shrink:0;color:var(--accent-cyan)}
.tool-card .tool-icon i{width:18px;height:18px}
.tool-card .tool-name{font-family:var(--font-pixel);font-size:8px;line-height:1.6}
.tool-card .tool-arrow{margin-left:auto;color:var(--text-muted);font-size:10px;transition:transform var(--transition)}
.tool-card:hover .tool-arrow{transform:translateX(4px);color:var(--accent-purple)}

.btn{
    display:inline-flex;align-items:center;justify-content:center;gap:6px;
    padding:10px 18px;font-family:var(--font-pixel);font-size:9px;
    border:2px solid var(--border);background:var(--bg-card);color:var(--text-primary);
    cursor:pointer;transition:all var(--transition);text-decoration:none;line-height:1
}
.btn:hover{background:var(--bg-card-hover);border-color:var(--border-hover);transform:translateY(-1px);color:var(--text-primary)}
.btn:active{transform:translateY(1px)}
.btn i{width:14px;height:14px}
.btn-primary{background:var(--accent-purple);color:#fff;border-color:var(--accent-purple)}
.btn-primary:hover{background:#8a78ff;border-color:#8a78ff;color:#fff}
.btn-sm{padding:6px 10px;font-size:8px}
.btn-danger{background:rgba(248,113,113,0.1);color:var(--error);border-color:rgba(248,113,113,0.2)}
.btn-danger:hover{background:rgba(248,113,113,0.2);color:var(--error)}

.form-group{margin-bottom:14px}
.form-label{display:block;font-family:var(--font-pixel);font-size:8px;color:var(--text-secondary);margin-bottom:6px;letter-spacing:0.5px}
.form-input,.form-textarea,.form-select{
    width:100%;padding:10px 14px;background:var(--bg-input);color:var(--text-primary);
    border:2px solid var(--border);font-family:var(--font-mono);font-size:13px;
    outline:none;transition:border-color var(--transition)
}
.form-input:focus,.form-textarea:focus,.form-select:focus{border-color:var(--accent-purple)}
.form-input::placeholder,.form-textarea::placeholder{color:var(--text-muted)}
.form-textarea{min-height:180px;resize:vertical;line-height:1.6}
.form-select{
    cursor:pointer;appearance:none;
    background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%239b8aff' d='M2 4l4 4 4-4'/%3E%3C/svg%3E");
    background-repeat:no-repeat;background-position:right 12px center;padding-right:36px
}

.tool-page{max-width:800px;margin:0 auto}
.tool-header{margin-bottom:20px;padding-bottom:14px;border-bottom:2px solid var(--border)}
.tool-header h1{font-size:14px;margin-bottom:6px;display:flex;align-items:center;gap:10px}
.tool-header h1 i{width:20px;height:20px;color:var(--accent-purple)}
.tool-header p{color:var(--text-secondary);font-size:13px}

.tool-output{
    background:var(--bg-input);border:2px solid var(--border);padding:14px;
    margin-top:14px;font-family:var(--font-mono);font-size:13px;
    white-space:pre-wrap;word-break:break-all;min-height:60px;max-height:400px;
    overflow:auto;color:var(--text-primary);line-height:1.6
}
.tool-actions{display:flex;gap:8px;margin-top:14px;flex-wrap:wrap}

.result-card{background:var(--bg-card);border:2px solid var(--border);margin-top:14px;overflow:hidden}
.result-header{
    display:flex;justify-content:space-between;align-items:center;
    padding:10px 14px;border-bottom:2px solid var(--border);background:rgba(155,138,255,0.04)
}
.result-title{font-family:var(--font-pixel);font-size:8px;color:var(--accent-green);display:flex;align-items:center;gap:6px}
.result-title i{width:14px;height:14px}
.result-body{padding:14px}

.site-footer{
    position:relative;z-index:1;text-align:center;padding:20px;
    border-top:2px solid var(--border);font-family:var(--font-pixel);
    font-size:7px;color:var(--text-muted);letter-spacing:0.5px
}
.site-footer a{color:var(--accent-purple)}
.footer-links{margin-bottom:8px;font-family:var(--font-mono);font-size:11px}
.footer-links a{color:var(--text-secondary);margin:0 4px;transition:color var(--transition)}
.footer-links a:hover{color:var(--accent-cyan)}
.footer-links span{color:var(--text-muted);font-size:8px}


.toast{
    position:fixed;bottom:20px;left:50%;transform:translateX(-50%) translateY(80px);
    padding:8px 18px;background:var(--bg-card);border:2px solid var(--accent-green);
    font-family:var(--font-pixel);font-size:8px;color:var(--accent-green);z-index:200;
    transition:transform 0.25s ease;pointer-events:none;white-space:nowrap
}
.toast.show{transform:translateX(-50%) translateY(0)}
.toast.error{border-color:var(--error);color:var(--error)}

.tabs{display:flex;border-bottom:2px solid var(--border);overflow-x:auto}
.tab{
    padding:10px 16px;font-family:var(--font-pixel);font-size:8px;color:var(--text-muted);
    cursor:pointer;border:none;background:none;white-space:nowrap;
    transition:all var(--transition);border-bottom:2px solid transparent;margin-bottom:-2px;
    display:flex;align-items:center;gap:6px
}
.tab:hover{color:var(--text-secondary);background:var(--bg-card-hover)}
.tab.active{color:var(--accent-purple);border-bottom-color:var(--accent-purple)}
.tab i{width:12px;height:12px}

.pixel-check{display:flex;align-items:center;gap:8px;cursor:pointer;font-size:12px;color:var(--text-secondary)}
.pixel-check input{display:none}
.pixel-check .check-box{
    width:14px;height:14px;border:2px solid var(--border);background:var(--bg-input);
    display:flex;align-items:center;justify-content:center;font-size:8px;
    color:var(--accent-purple);transition:all var(--transition)
}
.pixel-check input:checked+.check-box{background:rgba(155,138,255,0.15);border-color:var(--accent-purple)}
.pixel-check input:checked+.check-box::after{content:'■'}

.pixel-range{-webkit-appearance:none;width:100%;height:6px;background:var(--bg-input);border:2px solid var(--border);outline:none}
.pixel-range::-webkit-slider-thumb{-webkit-appearance:none;width:14px;height:14px;background:var(--accent-purple);cursor:pointer}

.hero{text-align:center;padding:40px 20px 28px;position:relative}
.hero-title{font-family:var(--font-pixel);font-size:24px;color:var(--accent-purple);margin-bottom:10px;text-shadow:3px 3px 0 var(--pixel-shadow)}
.hero-subtitle{font-size:13px;color:var(--text-secondary);max-width:500px;margin:0 auto}
.hero-badge{
    display:inline-flex;align-items:center;gap:6px;margin-top:14px;padding:5px 12px;
    background:rgba(155,138,255,0.08);border:1px solid rgba(155,138,255,0.15);
    font-family:var(--font-mono);font-size:11px;color:var(--accent-cyan)
}
.hero-badge .dot{width:6px;height:6px;background:var(--success);display:inline-block;animation:blink 2s steps(1) infinite}

.hero-decor{position:absolute;pointer-events:none;opacity:0.15}
.hero-decor-l{left:5%;top:20%;animation:float 4s ease-in-out infinite}
.hero-decor-r{right:5%;bottom:10%;animation:float 4s ease-in-out infinite 2s}

.shell-card{
    display:flex;align-items:center;justify-content:space-between;
    background:var(--bg-card);border:2px solid var(--border);padding:14px;margin-bottom:8px;transition:all var(--transition)
}
.shell-card:hover{border-color:var(--border-hover)}
.shell-info{display:flex;align-items:center;gap:12px}
.shell-info i{width:20px;height:20px;color:var(--accent-cyan)}
.shell-name{font-family:var(--font-pixel);font-size:8px}
.shell-desc{font-size:11px;color:var(--text-muted);margin-top:2px}
.shell-actions{display:flex;gap:6px}

.category-section{margin-bottom:24px}
.category-header{
    display:flex;align-items:center;gap:10px;margin-bottom:12px;padding-bottom:10px;
    border-bottom:2px solid var(--border);cursor:pointer
}
.category-header h2{margin:0}
.category-header .cat-icon{color:var(--accent-purple)}
.category-header .cat-icon i{width:18px;height:18px}
.category-header .card-count{font-family:var(--font-pixel);font-size:7px;color:var(--text-muted);margin-left:6px}
.category-header .cat-toggle{margin-left:auto;font-family:var(--font-pixel);font-size:10px;color:var(--text-muted);transition:transform var(--transition)}
.category-header.open .cat-toggle{transform:rotate(90deg)}
.category-tools{display:none}
.category-tools.open{display:grid}

.loading-spinner{display:inline-block;width:14px;height:14px;border:2px solid var(--border);border-top-color:var(--accent-purple);animation:spin 0.6s steps(8) infinite}

.auto-mode-label{font-size:11px;color:var(--text-muted);font-family:var(--font-mono);margin-top:8px}

.stat-row{display:flex;justify-content:space-between;padding:8px 0;border-bottom:1px solid var(--border);font-size:12px}
.stat-row:last-child{border-bottom:none}
.stat-key{color:var(--text-muted);font-family:var(--font-pixel);font-size:8px}
.stat-val{color:var(--text-primary);font-family:var(--font-mono)}

.auth-box{
    max-width:360px;margin:60px auto;text-align:center;padding:32px;
    background:var(--bg-card);border:2px solid var(--border)
}
.auth-box h2{margin-bottom:16px;color:var(--accent-purple)}
.auth-box .form-input{margin-bottom:12px}
.auth-error{color:var(--error);font-size:11px;margin-bottom:10px}

.decor-pixel{
    position:fixed;pointer-events:none;z-index:0;opacity:0.02;
    background:linear-gradient(135deg,var(--accent-purple),var(--accent-cyan));
    animation:glow 8s ease-in-out infinite
}
.decor-1{width:120px;height:120px;top:15%;right:-30px;border-radius:50%}
.decor-2{width:80px;height:80px;bottom:25%;left:-20px;border-radius:50%;animation-delay:4s}

/* Sidebar search */
.sidebar-search{padding:6px 12px 10px;border-bottom:1px solid var(--border)}
.sidebar.collapsed .sidebar-search{padding:6px;text-align:center}
.sidebar-search-box{position:relative;display:flex;align-items:center}
.sidebar-search-icon{position:absolute;left:8px;width:14px;height:14px;color:var(--text-muted);pointer-events:none;flex-shrink:0}
.sidebar-search-input{
    width:100%;padding:7px 10px 7px 28px;background:var(--bg-input);color:var(--text-primary);
    border:2px solid var(--border);font-family:var(--font-mono);font-size:11px;outline:none;
    transition:border-color var(--transition)
}
.sidebar-search-input:focus{border-color:var(--accent-purple)}
.sidebar-search-input::placeholder{color:var(--text-muted);font-size:10px}
.sidebar.collapsed .sidebar-search-box{justify-content:center}
.sidebar.collapsed .sidebar-search-input{opacity:0;width:0;padding:0;border:none}
.sidebar.collapsed .sidebar-search-icon{position:static;cursor:pointer;pointer-events:auto;opacity:0.6}
.sidebar.collapsed .sidebar-search-icon:hover{color:var(--accent-purple);opacity:1}
.sidebar-cat.search-hidden{display:none}
.sidebar-link.search-hidden{display:none}

/* Index search */
.index-search{max-width:480px;margin:22px auto 0;position:relative}
.index-search-box{position:relative;display:flex;align-items:center}
.index-search-icon{position:absolute;left:14px;width:16px;height:16px;color:var(--text-muted);pointer-events:none}
.index-search-input{
    width:100%;padding:12px 50px 12px 40px;background:var(--bg-card);color:var(--text-primary);
    border:2px solid var(--border);font-family:var(--font-mono);font-size:13px;outline:none;
    transition:all var(--transition)
}
.index-search-input:focus{border-color:var(--accent-purple);box-shadow:0 0 0 3px rgba(155,138,255,0.1),0 8px 32px rgba(0,0,0,0.2)}
.index-search-input::placeholder{color:var(--text-muted)}
.index-search-kbd{
    position:absolute;right:12px;padding:2px 8px;background:var(--bg-secondary);
    border:1px solid var(--border);font-family:var(--font-mono);font-size:11px;
    color:var(--text-muted);pointer-events:none;line-height:1.4
}
.index-search-input:focus ~ .index-search-kbd{opacity:0}
.index-search-results{
    position:absolute;top:100%;left:0;right:0;z-index:20;margin-top:4px;
    background:var(--bg-card);border:2px solid var(--border);display:none;
    box-shadow:0 12px 40px rgba(0,0,0,0.3);max-height:320px;overflow-y:auto
}
.search-result-item{
    display:flex;align-items:center;gap:10px;padding:10px 14px;color:var(--text-primary);
    text-decoration:none;transition:all var(--transition);font-size:13px;border-bottom:1px solid var(--border)
}
.search-result-item:last-child{border-bottom:none}
.search-result-item:hover{background:var(--bg-card-hover);color:var(--accent-cyan)}
.search-result-item i{width:16px;height:16px;color:var(--accent-purple);flex-shrink:0}
.no-results-msg{text-align:center;padding:40px 20px}