:root{--bg-core:#0b0f19;--bg-surface:#111827;--bg-surface-hover:#1f2937;--text-main:#f3f4f6;--text-muted:#9ca3af;--border-light:#ffffff1a;--border-hover:#fff3;--accent-primary:#3b82f6;--accent-primary-hover:#2563eb;--accent-secondary:#8b5cf6;--shadow-sm:0 1px 2px 0 #0000000d;--shadow-md:0 4px 6px -1px #0000001a, 0 2px 4px -1px #0000000f;--shadow-glow:0 0 15px #3b82f64d;--glass-bg:#111827b3;--glass-blur:blur(12px)}*{box-sizing:border-box;margin:0;padding:0}body{background-color:var(--bg-core);color:var(--text-main);font-family:Inter,sans-serif;line-height:1.5;overflow-x:hidden}a{color:var(--accent-primary);text-decoration:none;transition:color .2s}a:hover{color:var(--accent-primary-hover)}.app-container{min-height:100vh;display:flex}.sidebar{background-color:var(--bg-surface);border-right:1px solid var(--border-light);z-index:40;flex-direction:column;width:280px;transition:transform .3s;display:flex;position:fixed;top:0;bottom:0;left:0;overflow-y:auto}.sidebar::-webkit-scrollbar{width:6px}.sidebar::-webkit-scrollbar-thumb{background:var(--bg-surface-hover);border-radius:4px}.sidebar-header{border-bottom:1px solid var(--border-light);align-items:center;gap:12px;padding:24px;font-size:24px;font-weight:700;display:flex}.sidebar-header a{background:linear-gradient(to right, var(--accent-primary), var(--accent-secondary));-webkit-text-fill-color:transparent;-webkit-background-clip:text}.sidebar-nav{flex-direction:column;gap:4px;padding:16px 0;display:flex}.nav-category{text-transform:uppercase;letter-spacing:.05em;color:var(--text-muted);padding:16px 24px 8px;font-size:12px;font-weight:600}.nav-link{color:var(--text-muted);align-items:center;gap:12px;padding:10px 24px;font-size:15px;transition:all .2s;display:flex}.nav-link:hover{background-color:var(--bg-surface-hover);color:var(--text-main)}.nav-link.active{color:var(--accent-primary);border-right:3px solid var(--accent-primary);background-color:#3b82f61a}.main-content{flex-direction:column;flex:1;min-height:100vh;margin-left:280px;display:flex}.top-header{background:var(--glass-bg);height:70px;-webkit-backdrop-filter:var(--glass-blur);border-bottom:1px solid var(--border-light);z-index:30;justify-content:space-between;align-items:center;padding:0 32px;display:flex;position:sticky;top:0}.menu-toggle{color:var(--text-main);cursor:pointer;background:0 0;border:none;display:none}.tool-page{width:100%;max-width:1200px;margin:0 auto;padding:32px;animation:.4s ease-out fadeIn}@keyframes fadeIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.tool-header{margin-bottom:32px}.tool-title{margin-bottom:8px;font-size:32px;font-weight:700}.tool-desc{color:var(--text-muted);font-size:16px}.tool-card{background-color:var(--bg-surface);border:1px solid var(--border-light);box-shadow:var(--shadow-md);border-radius:12px;padding:24px}.dashboard-grid{grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:24px;margin-top:32px;display:grid}.dash-card{background:var(--bg-surface);border:1px solid var(--border-light);border-radius:12px;flex-direction:column;padding:24px;transition:all .3s;display:flex;position:relative;overflow:hidden}.dash-card:before{content:"";background:linear-gradient(to right, var(--accent-primary), var(--accent-secondary));opacity:0;height:3px;transition:opacity .3s;position:absolute;top:0;left:0;right:0}.dash-card:hover{box-shadow:var(--shadow-glow);border-color:var(--border-hover);transform:translateY(-4px)}.dash-card:hover:before{opacity:1}.dash-card-icon{color:var(--accent-primary);margin-bottom:16px}.dash-card-title{color:var(--text-main);margin-bottom:8px;font-size:18px;font-weight:600}.dash-card-desc{color:var(--text-muted);flex:1;font-size:14px}.dash-card-link{z-index:10;position:absolute;inset:0}.btn{background-color:var(--accent-primary);cursor:pointer;border:none;border-radius:8px;justify-content:center;align-items:center;gap:8px;padding:10px 20px;font-size:15px;font-weight:500;transition:all .2s;display:inline-flex;color:#fff!important}.btn:hover{background-color:var(--accent-primary-hover);box-shadow:var(--shadow-glow);transform:translateY(-1px)}.btn-secondary{background-color:var(--bg-surface-hover);border:1px solid var(--border-hover);color:var(--text-main)!important}.btn-secondary:hover{box-shadow:none;background-color:#ffffff1a}.input,.textarea{background-color:var(--bg-core);border:1px solid var(--border-light);width:100%;color:var(--text-main);border-radius:8px;padding:12px;font-family:inherit;font-size:15px;transition:border-color .2s}.input:focus,.textarea:focus{border-color:var(--accent-primary);outline:none;box-shadow:0 0 0 2px #3b82f633}.textarea{resize:vertical;min-height:150px;font-family:monospace}.file-drop{border:2px dashed var(--border-light);text-align:center;cursor:pointer;background:#ffffff05;border-radius:12px;padding:40px;transition:all .2s}.file-drop:hover,.file-drop.dragover{border-color:var(--accent-primary);background:#3b82f60d}.input-group{margin-bottom:20px}.input-group label{color:var(--text-muted);margin-bottom:8px;font-size:14px;font-weight:500;display:block}.flex-row{flex-wrap:wrap;gap:16px;display:flex}.mt-4{margin-top:16px}.mb-4{margin-bottom:16px}.gap-4{gap:16px}@media (width<=992px){.sidebar{transform:translate(-100%)}.sidebar.open{transform:translate(0)}.main-content{margin-left:0}.menu-toggle{display:block}.overlay{z-index:35;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);background:#00000080;position:fixed;inset:0}}