.modern-nav{position:fixed;top:0;left:0;right:0;z-index:var(--z-fixed,1030);background:var(--bg-primary,#ffffff);border-bottom:1px solid var(--border,#e2e8f0);box-shadow:var(--shadow-sm,0 1px 2px rgba(0,0,0,0.05));height:var(--header-height-desktop,72px)}.nav-container{max-width:1400px;margin:0 auto;padding:0 var(--space-4,1rem);display:flex;align-items:center;justify-content:space-between;height:100%}.nav-logo{display:flex;align-items:center;gap:var(--space-3,0.75rem);text-decoration:none;font-weight:700;font-size:var(--text-lg,1.125rem);transition:opacity 0.2s}.nav-logo:hover{opacity:0.8}.nav-logo img{width:32px;height:32px;border-radius:var(--radius-md,0.5rem)}.nav-logo span{background:linear-gradient(135deg,#6366f1 0%,#8b5cf6 50%,#ec4899 100%);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;color:var(--primary,#6366f1);font-weight:700;letter-spacing:-0.02em}[data-theme="dark"] .nav-logo span{background:linear-gradient(135deg,#818cf8 0%,#a78bfa 50%,#f472b6 100%);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;color:var(--primary-light,#818cf8)}.nav-items{display:flex;align-items:center;gap:var(--space-6,1.5rem);list-style:none;margin:0;padding:0}.nav-item{position:relative}.nav-link{color:var(--text-secondary,#475569);text-decoration:none;font-weight:500;font-size:var(--text-base,1rem);padding:var(--space-2,0.5rem) var(--space-3,0.75rem);border-radius:var(--radius-md,0.5rem);transition:all 0.2s;display:flex;align-items:center;gap:var(--space-2,0.5rem)}.nav-link:hover{color:var(--primary,#6366f1);background:var(--bg-secondary,#f8fafc)}.nav-link.active{color:var(--primary,#6366f1);background:var(--primary-50,#eef2ff)}.nav-item-dropdown{position:static}.nav-link-dropdown{cursor:pointer;user-select:none;background:none;border:none;font-family:inherit}.dropdown-arrow{font-size:0.75rem;margin-left:0.25rem;transition:transform 0.2s}.mega-menu{position:absolute;top:100%;left:0;right:0;background:var(--bg-primary,#ffffff);border:1px solid var(--border,#e2e8f0);border-radius:var(--radius-lg,0.75rem);box-shadow:var(--shadow-xl,0 20px 25px rgba(0,0,0,0.1));margin-top:var(--space-2,0.5rem);padding:var(--space-6,1.5rem);max-height:80vh;overflow-y:auto;z-index:var(--z-dropdown,1020);opacity:0;visibility:hidden;transform:translateY(-10px);transition:all 0.3s ease;max-width:1400px;margin-left:auto;margin-right:auto}.mega-menu.show{opacity:1;visibility:visible;transform:translateY(0)}.mega-menu-content{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:var(--space-6,1.5rem)}.mega-menu-column{min-width:0}.mega-menu-category-header{display:flex;align-items:center;gap:var(--space-3,0.75rem);margin-bottom:var(--space-4,1rem);padding-bottom:var(--space-3,0.75rem);border-bottom:2px solid var(--border,#e2e8f0)}.mega-menu-icon{font-size:var(--text-2xl,1.5rem);width:40px;height:40px;display:flex;align-items:center;justify-content:center;background:var(--bg-secondary,#f8fafc);border-radius:var(--radius-md,0.5rem)}.mega-menu-category-name{font-weight:600;font-size:var(--text-base,1rem);color:var(--text-primary,#0f172a)}.mega-menu-tool-count{font-size:var(--text-sm,0.875rem);color:var(--text-muted,#94a3b8)}.mega-menu-tool-list{list-style:none;margin:0;padding:0;max-height:400px;overflow-y:auto;overflow-x:hidden}.mega-menu-tool-list::-webkit-scrollbar{width:6px}.mega-menu-tool-list::-webkit-scrollbar-track{background:var(--bg-secondary,#f8fafc);border-radius:var(--radius-full,9999px)}.mega-menu-tool-list::-webkit-scrollbar-thumb{background:var(--border-dark,#cbd5e1);border-radius:var(--radius-full,9999px)}.mega-menu-tool-list::-webkit-scrollbar-thumb:hover{background:var(--text-muted,#94a3b8)}.mega-menu-tool-list li{margin-bottom:var(--space-2,0.5rem)}.mega-menu-tool-link{display:flex;align-items:center;gap:var(--space-2,0.5rem);padding:var(--space-2,0.5rem) var(--space-3,0.75rem);color:var(--text-secondary,#475569);text-decoration:none;border-radius:var(--radius-md,0.5rem);font-size:var(--text-sm,0.875rem);transition:all 0.2s}.mega-menu-tool-link:hover{background:var(--bg-secondary,#f8fafc);color:var(--primary,#6366f1);padding-left:var(--space-4,1rem)}.tool-icon-small{font-size:1em;line-height:1;flex-shrink:0;width:1.25em;text-align:center}.mega-menu-view-all{margin-top:var(--space-3,0.75rem);padding-top:var(--space-3,0.75rem);border-top:1px solid var(--border,#e2e8f0)}.mega-menu-view-all-link{display:block;padding:var(--space-2,0.5rem) var(--space-3,0.75rem);color:var(--primary,#6366f1);text-decoration:none;font-weight:600;font-size:var(--text-sm,0.875rem);transition:all 0.2s}.mega-menu-view-all-link:hover{color:var(--primary-dark,#4f46e5);padding-left:var(--space-4,1rem)}.nav-search{position:relative;flex:1;max-width:500px;margin:0 var(--space-6,1.5rem)}.search-input{width:100%;padding:var(--space-2,0.5rem) var(--space-10,2.5rem) var(--space-2,0.5rem) var(--space-4,1rem);border:2px solid var(--border,#e2e8f0);border-radius:var(--radius-full,9999px);font-size:var(--text-sm,0.875rem);background:var(--bg-secondary,#f8fafc);transition:all 0.2s;font-family:var(--font-sans)}.search-input:focus{outline:none;border-color:var(--primary,#6366f1);background:var(--bg-primary,#ffffff);box-shadow:0 0 0 3px rgba(99,102,241,0.1)}.search-icon{position:absolute;right:var(--space-4,1rem);top:50%;transform:translateY(-50%);color:var(--text-muted,#94a3b8);pointer-events:none}.nav-actions{display:flex;align-items:center;gap:var(--space-3,0.75rem)}.btn-nav{padding:var(--space-2,0.5rem) var(--space-4,1rem);border-radius:var(--radius-md,0.5rem);font-size:var(--text-sm,0.875rem);font-weight:500;text-decoration:none;transition:all 0.2s;border:none;cursor:pointer;display:inline-flex;align-items:center;gap:var(--space-2,0.5rem);font-family:var(--font-sans)}.btn-nav-primary{background:var(--primary,#6366f1);color:white}.btn-nav-primary:hover{background:var(--primary-dark,#4f46e5);transform:translateY(-1px);box-shadow:var(--shadow-md,0 4px 6px rgba(0,0,0,0.1))}.btn-nav-secondary{background:var(--bg-secondary,#f8fafc);color:var(--text-secondary,#475569);border:1px solid var(--border,#e2e8f0)}.btn-nav-secondary:hover{background:var(--bg-tertiary,#f1f5f9);border-color:var(--primary,#6366f1);color:var(--primary,#6366f1)}.mobile-menu-toggle{display:none;background:none;border:none;padding:var(--space-2,0.5rem);cursor:pointer;color:var(--text-primary);font-size:var(--text-xl,1.25rem);width:40px;height:40px;align-items:center;justify-content:center;border-radius:var(--radius-md,0.5rem);transition:background 0.2s}.mobile-menu-toggle:hover{background:var(--bg-secondary,#f8fafc)}.mobile-search-toggle{display:none;background:none;border:none;padding:var(--space-2,0.5rem);cursor:pointer;color:var(--text-secondary);font-size:var(--text-lg,1.125rem)}@media (max-width:991px){.modern-nav{height:var(--header-height-mobile,64px)}.nav-container{padding:0 var(--space-3,0.75rem)}.nav-search{display:none}.nav-items{display:none}.nav-actions{gap:var(--space-2,0.5rem)}.btn-nav{padding:var(--space-2,0.5rem) var(--space-3,0.75rem);font-size:var(--text-xs,0.75rem)}.mobile-menu-toggle,.mobile-search-toggle{display:flex}.btn-nav .nav-text{display:none}}.mobile-drawer{position:fixed;top:var(--header-height-mobile,64px);left:0;right:0;bottom:0;background:var(--bg-primary,#ffffff);z-index:var(--z-modal,1050);transform:translateX(-100%);transition:transform 0.3s ease-in-out;overflow-y:auto;box-shadow:var(--shadow-xl,0 20px 25px rgba(0,0,0,0.1))}.mobile-drawer.open{transform:translateX(0)}.drawer-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background:rgba(0,0,0,0.5);z-index:var(--z-modal-backdrop,1040);opacity:0;visibility:hidden;transition:all 0.3s ease-in-out}.drawer-overlay.open{opacity:1;visibility:visible}.drawer-header{padding:var(--space-4,1rem);border-bottom:1px solid var(--border,#e2e8f0);display:flex;align-items:center;justify-content:space-between}.drawer-title{font-size:var(--text-lg,1.125rem);font-weight:600;color:var(--text-primary);margin:0}.drawer-close{background:none;border:none;font-size:var(--text-2xl,1.5rem);color:var(--text-secondary);cursor:pointer;padding:var(--space-1,0.25rem);width:36px;height:36px;display:flex;align-items:center;justify-content:center;border-radius:var(--radius-md,0.5rem);transition:all 0.2s}.drawer-close:hover{background:var(--bg-secondary,#f8fafc);color:var(--text-primary)}.drawer-search{padding:var(--space-4,1rem);border-bottom:1px solid var(--border,#e2e8f0)}.drawer-content{padding:var(--space-4,1rem)}.drawer-section{margin-bottom:var(--space-6,1.5rem)}.drawer-section-title{font-size:var(--text-sm,0.875rem);font-weight:600;text-transform:uppercase;letter-spacing:0.05em;color:var(--text-muted,#94a3b8);margin-bottom:var(--space-3,0.75rem);padding:0 var(--space-2,0.5rem)}.drawer-link{display:flex;align-items:center;gap:var(--space-3,0.75rem);padding:var(--space-3,0.75rem) var(--space-2,0.5rem);color:var(--text-primary);text-decoration:none;border-radius:var(--radius-md,0.5rem);transition:all 0.2s;font-size:var(--text-base,1rem)}.drawer-link:hover{background:var(--bg-secondary,#f8fafc);color:var(--primary,#6366f1);padding-left:var(--space-4,1rem)}.drawer-link-icon{width:24px;height:24px;display:flex;align-items:center;justify-content:center;font-size:var(--text-lg,1.125rem);flex-shrink:0}.drawer-empty{padding:var(--space-4,1rem);text-align:center;color:var(--text-muted,#94a3b8);font-size:var(--text-sm,0.875rem);margin:0}.drawer-loading{padding:var(--space-4,1rem);text-align:center;color:var(--text-muted,#94a3b8);font-size:var(--text-sm,0.875rem);margin:0}.drawer-category-item{margin-bottom:var(--space-2,0.5rem);border:1px solid var(--border,#e2e8f0);border-radius:var(--radius-md,0.5rem);overflow:hidden}.drawer-category-toggle{width:100%;padding:var(--space-3,0.75rem) var(--space-4,1rem);background:var(--bg-secondary,#f8fafc);border:none;cursor:pointer;display:flex;align-items:center;gap:var(--space-3,0.75rem);font-family:inherit;font-size:var(--text-base,1rem);font-weight:500;color:var(--text-primary,#0f172a);transition:background 0.2s;text-align:left}.drawer-category-toggle:hover{background:var(--bg-tertiary,#f1f5f9)}.drawer-category-icon{font-size:var(--text-xl,1.25rem);width:32px;height:32px;display:flex;align-items:center;justify-content:center;flex-shrink:0}.drawer-category-name{flex:1;font-weight:600}.drawer-category-count{font-size:var(--text-sm,0.875rem);color:var(--text-muted,#94a3b8);background:var(--bg-primary,#ffffff);padding:var(--space-1,0.25rem) var(--space-2,0.5rem);border-radius:var(--radius-full,9999px)}.drawer-category-arrow{font-size:var(--text-sm,0.875rem);color:var(--text-muted,#94a3b8);transition:transform 0.2s}.drawer-category-content{max-height:0;overflow:hidden;transition:max-height 0.3s ease;background:var(--bg-primary,#ffffff)}.drawer-category-content.open{max-height:600px;overflow-y:auto;overflow-x:hidden}.drawer-category-content.open::-webkit-scrollbar{width:6px}.drawer-category-content.open::-webkit-scrollbar-track{background:var(--bg-secondary,#f8fafc)}.drawer-category-content.open::-webkit-scrollbar-thumb{background:var(--border-dark,#cbd5e1);border-radius:var(--radius-full,9999px)}.drawer-category-content.open::-webkit-scrollbar-thumb:hover{background:var(--text-muted,#94a3b8)}.drawer-category-tools{padding:var(--space-3,0.75rem) var(--space-4,1rem);display:flex;flex-direction:column;gap:var(--space-2,0.5rem)}.drawer-tool-link{display:block;padding:var(--space-2,0.5rem) var(--space-3,0.75rem);color:var(--text-secondary,#475569);text-decoration:none;border-radius:var(--radius-md,0.5rem);font-size:var(--text-sm,0.875rem);transition:all 0.2s;margin-left:var(--space-8,2rem)}.drawer-tool-link:hover{background:var(--bg-secondary,#f8fafc);color:var(--primary,#6366f1);padding-left:var(--space-4,1rem)}.drawer-view-all{display:block;padding:var(--space-2,0.5rem) var(--space-3,0.75rem);color:var(--primary,#6366f1);text-decoration:none;font-weight:600;font-size:var(--text-sm,0.875rem);margin-left:var(--space-8,2rem);margin-top:var(--space-2,0.5rem);transition:all 0.2s}.drawer-view-all:hover{color:var(--primary-dark,#4f46e5);padding-left:var(--space-4,1rem)}.mobile-search-modal{position:fixed;top:0;left:0;right:0;bottom:0;background:var(--bg-primary,#ffffff);z-index:var(--z-modal,1050);display:none;flex-direction:column}.mobile-search-modal.open{display:flex}.mobile-search-header{padding:var(--space-4,1rem);border-bottom:1px solid var(--border,#e2e8f0);display:flex;align-items:center;gap:var(--space-3,0.75rem)}.mobile-search-input{flex:1;padding:var(--space-3,0.75rem) var(--space-4,1rem);border:2px solid var(--border,#e2e8f0);border-radius:var(--radius-md,0.5rem);font-size:var(--text-base,1rem);font-family:var(--font-sans)}.mobile-search-input:focus{outline:none;border-color:var(--primary,#6366f1);box-shadow:0 0 0 3px rgba(99,102,241,0.1)}.mobile-search-close{background:none;border:none;font-size:var(--text-xl,1.25rem);color:var(--text-secondary);cursor:pointer;padding:var(--space-2,0.5rem)}[data-theme="dark"] .mega-menu{background:var(--bg-secondary,#1e293b);border-color:var(--border,#334155)}[data-theme="dark"] .mega-menu-category-header{border-bottom-color:var(--border,#334155)}[data-theme="dark"] .mega-menu-icon{background:var(--bg-tertiary,#334155)}[data-theme="dark"] .mega-menu-tool-link:hover,[data-theme="dark"] .drawer-tool-link:hover{background:var(--bg-tertiary,#334155)}[data-theme="dark"] .drawer-category-toggle{background:var(--bg-secondary,#1e293b)}[data-theme="dark"] .drawer-category-toggle:hover{background:var(--bg-tertiary,#334155)}[data-theme="dark"] .drawer-category-content{background:var(--bg-secondary,#1e293b)}[data-theme="dark"] .drawer-category-count{background:var(--bg-tertiary,#334155)}@media (max-width:991px){.mega-menu{left:var(--space-4,1rem);right:var(--space-4,1rem);max-width:none}.mega-menu-content{grid-template-columns:1fr}}@media (max-width:767px){.nav-logo span{display:inline-block;font-size:var(--text-sm,0.875rem)}.nav-logo{font-size:var(--text-base,1rem);gap:var(--space-2,0.5rem)}.nav-logo img{width:28px;height:28px}.mega-menu{display:none}}