@import"https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap";:root{--bg-app: #f9fafb;--bg-panel: #ffffff;--bg-panel-hover: #f3f4f6;--bg-card: #ffffff;--primary: #2563eb;--primary-hover: #1d4ed8;--primary-dim: rgba(37, 99, 235, .1);--primary-glow: none;--secondary: #4b5563;--secondary-dim: rgba(75, 85, 99, .1);--accent: #10b981;--danger: #ef4444;--text-main: #111827;--text-muted: #6b7280;--text-light: #9ca3af;--gradient-main: none;--gradient-card: none;--font-main: "Inter", system-ui, -apple-system, sans-serif;--font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;--space-xs: .5rem;--space-sm: 1rem;--space-md: 1.5rem;--space-lg: 2rem;--space-xl: 3rem;--radius-sm: 4px;--radius-md: 8px;--radius-lg: 12px;--glass: none;--border-light: 1px solid #e5e7eb;--shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, .05);--shadow-card: 0 1px 3px 0 rgba(0, 0, 0, .1), 0 1px 2px 0 rgba(0, 0, 0, .06);--shadow-hover: 0 4px 6px -1px rgba(0, 0, 0, .1), 0 2px 4px -1px rgba(0, 0, 0, .06);--transition-fast: .15s ease;--transition-medium: .3s ease}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}body{font-family:var(--font-main);background:var(--bg-app);color:var(--text-main);line-height:1.5;-webkit-font-smoothing:antialiased}h1,h2,h3,h4,h5,h6{color:var(--text-main);font-weight:700;line-height:1.2}h1{font-size:2.25rem;margin-bottom:var(--space-sm);letter-spacing:-.02em}h2{font-size:1.5rem;margin-bottom:var(--space-sm);color:var(--text-main)}p{color:var(--text-muted);margin-bottom:var(--space-md)}a{color:var(--primary);text-decoration:none;transition:color var(--transition-fast)}a:hover{color:var(--primary-hover);text-decoration:underline}.container{max-width:1200px;margin:0 auto;padding:0 var(--space-md)}.app-header{background:var(--bg-panel);border-bottom:var(--border-light);padding:var(--space-sm) 0;position:sticky;top:0;z-index:100}.header-content{display:flex;align-items:center;justify-content:space-between}.nav-brand{font-weight:700;font-size:1.25rem;color:var(--text-main);text-decoration:none!important}.nav-links{display:flex;gap:1.5rem;margin-right:3rem}.nav-item{font-size:.95rem;font-weight:500;color:var(--text-muted);cursor:pointer;position:relative}.nav-item:hover{color:var(--text-main)}.nav-separator{width:1px;height:20px;background-color:#0003;background-color:var(--border-light, #e5e7eb);align-self:center;margin:0 .2rem}@media(prefers-color-scheme:dark){.nav-separator{background-color:#fff3}}.nav-item a.nav-link-direct{color:inherit;text-decoration:none}.dropdown{position:absolute;top:100%;right:0;background:var(--bg-panel);border:var(--border-light);border-radius:var(--radius-md);box-shadow:var(--shadow-hover);min-width:200px;padding:.5rem 0;display:none;z-index:1000;margin-top:.5rem}.nav-item:hover .dropdown{display:block}.dropdown-item{display:block;padding:.5rem 1rem;color:var(--text-main);font-size:.9rem}.dropdown-item:hover{background:var(--bg-panel-hover);text-decoration:none}.layout-grid{display:block;max-width:1000px;margin:0 auto;padding-top:var(--space-lg);padding-bottom:var(--space-xl)}.card{background:var(--bg-card);border:var(--border-light);border-radius:var(--radius-md);padding:var(--space-lg);box-shadow:var(--shadow-card);margin-bottom:var(--space-lg)}.card h1{font-size:1.5rem;margin-bottom:var(--space-sm);color:var(--text-main);font-weight:700;line-height:1.2;letter-spacing:normal}.input-group{margin-bottom:var(--space-md)}label{display:block;font-size:.875rem;font-weight:500;color:var(--text-main);margin-bottom:.5rem}input[type=number],input[type=text],input[type=date],select{width:100%;padding:.75rem;background:#fff;border:1px solid #d1d5db;border-radius:var(--radius-sm);font-family:inherit;font-size:1rem;color:var(--text-main);transition:border-color var(--transition-fast),box-shadow var(--transition-fast);outline:none}input:focus,select:focus{border-color:var(--primary);box-shadow:0 0 0 3px var(--primary-dim)}.btn{display:inline-flex;justify-content:center;align-items:center;padding:.75rem 1.5rem;background:var(--primary);color:#fff;font-weight:600;border:none;border-radius:var(--radius-sm);cursor:pointer;font-size:1rem;transition:background-color var(--transition-fast);width:100%}.btn:hover{background:var(--primary-hover);transform:none;box-shadow:none}.results{background:var(--bg-app);border:var(--border-light);border-radius:var(--radius-md);padding:var(--space-md);margin-top:var(--space-md)}.results h3{font-size:1.1rem;margin-bottom:1rem;border-bottom:var(--border-light);padding-bottom:.5rem}.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:var(--space-lg)}@media(max-width:640px){.grid-2{grid-template-columns:1fr}}.ad-slot{background:#e5e7eb;color:#9ca3af;display:flex;align-items:center;justify-content:center;font-size:.8rem;font-weight:500;border-radius:var(--radius-sm);margin:var(--space-md) 0}.ad-horizontal{width:100%;height:90px}.home-categories{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:1.5rem;margin:2rem 0}.cat-card{background:var(--bg-card);border:var(--border-light);border-radius:var(--radius-md);padding:1.5rem;transition:transform .2s ease,box-shadow .2s ease;cursor:pointer;text-align:left;display:block;text-decoration:none}.cat-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:var(--primary)}.cat-card h3{color:var(--primary);margin-bottom:.5rem;font-size:1.15rem;font-weight:600}.cat-card p{font-size:.9rem;color:var(--text-muted);margin-bottom:0;line-height:1.4}.cat-icon{font-size:2rem;margin-bottom:1rem}.featured-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:1.5rem}.feat-card{background:var(--bg-card);border:var(--border-light);border-radius:var(--radius-md);padding:1.5rem;text-align:center;transition:transform .2s ease,box-shadow .2s ease;text-decoration:none;display:block}.feat-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:var(--primary)}.feat-card h3{font-size:1rem;color:var(--text-main);margin-bottom:.5rem}.feat-card p{font-size:.85rem;color:var(--text-muted);margin-bottom:0}.how-it-works{display:grid;grid-template-columns:repeat(3,1fr);gap:2rem;margin:3rem 0;text-align:center}.step-icon{font-size:2.5rem;margin-bottom:1rem;display:block}.seo-content{max-width:800px;margin:4rem auto;text-align:left;background:var(--bg-card);padding:2.5rem;border-radius:var(--radius-md);border:var(--border-light)}.seo-content h2{font-size:1.5rem;margin-bottom:1rem;color:var(--text-main)}.seo-content p{font-size:1rem;line-height:1.7;color:var(--text-muted);margin-bottom:0}.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:2rem;max-width:1000px;margin:0 auto}.footer-col h4{color:var(--text-main);margin-bottom:1rem;font-size:1rem}.footer-links{list-style:none;padding:0}.footer-links li{margin-bottom:.6rem}.footer-links a{color:var(--text-muted);font-size:.9rem;transition:color .2s}.footer-links a:hover{color:var(--primary)}@media(max-width:768px){.featured-grid{grid-template-columns:repeat(2,1fr)}.footer-grid{grid-template-columns:1fr;text-align:center;gap:2rem}}.converter-row{display:flex;align-items:flex-end;gap:1rem;margin-top:1.5rem}.converter-group{flex:1;display:flex;flex-direction:column}.converter-group label{font-size:.85rem;font-weight:600;color:var(--text-muted);margin-bottom:.5rem}.input-wrapper{display:flex;border:1px solid #d1d5db;border-radius:var(--radius-sm);background:#fff;overflow:hidden;transition:box-shadow .2s,border-color .2s}.input-wrapper:focus-within{border-color:var(--primary);box-shadow:0 0 0 3px var(--primary-dim)}.input-wrapper input{border:none;border-radius:0;flex:2;padding:.75rem;font-size:1.1rem;width:60%}.input-wrapper input:focus{box-shadow:none}.input-wrapper select{border:none;border-left:1px solid #e5e7eb;border-radius:0;background-color:#f9fafb;flex:1;width:40%;min-width:100px;font-size:.9rem;padding:.75rem 2rem .75rem 1rem}.input-wrapper select:focus{box-shadow:none}.readonly-input{background:#f9fafb!important;color:var(--text-main);font-weight:600;cursor:default}.swap-btn{display:inline-flex;align-items:center;justify-content:center;width:40px;height:40px;border-radius:50%;background:#f3f4f6;border:1px solid #e5e7eb;color:var(--text-muted);cursor:pointer;font-size:1.2rem;transition:all .2s;margin-bottom:3px;flex-shrink:0}.swap-btn:hover{background:#fff;border-color:var(--primary);color:var(--primary);box-shadow:var(--shadow-hover);transform:rotate(180deg)}@media(max-width:768px){.converter-row{flex-direction:column;align-items:center;gap:1.5rem}.converter-group{width:100%}.swap-btn{margin:0;transform:rotate(90deg)}.swap-btn:hover{transform:rotate(270deg)}}.remove-row{background:#fee2e2;color:#ef4444;border:1px solid #fca5a5;border-radius:var(--radius-sm);width:42px;height:42px}.remove-row:hover{background:#ef4444;color:#fff}.nav-item{padding:.5rem 0;margin:0}.dropdown{top:100%;margin-top:0;padding-top:5px;pointer-events:auto;display:none}.nav-item:hover .dropdown,.nav-item:focus-within .dropdown{display:block;animation:fadeIn .2s ease}.mobile-toggle{display:none;flex-direction:column;justify-content:space-between;width:30px;height:21px;background:transparent;border:none;cursor:pointer;z-index:1001}.mobile-toggle span{display:block;width:100%;height:3px;background:var(--text-main);border-radius:3px;transition:all .3s}@media(max-width:900px){.mobile-toggle{display:flex}.nav-links{display:none;position:absolute;top:100%;left:0;width:100%;background:var(--bg-panel);flex-direction:column;gap:0;border-bottom:var(--border-light);box-shadow:var(--shadow-hover);padding:1rem 0;margin-right:0}.nav-links.nav-active{display:flex}.nav-item{width:100%;padding:1rem 2rem;border-bottom:1px solid var(--border-light)}.dropdown{position:static;box-shadow:none;border:none;padding-left:1rem;padding-top:.5rem;display:none}.nav-item:hover .dropdown,.nav-item:focus-within .dropdown{display:block}}@keyframes fadeIn{0%{opacity:0;transform:translateY(5px)}to{opacity:1;transform:translateY(0)}}.blog-list-grid{display:grid;gap:1.5rem;margin-top:2rem}.blog-card{background:var(--bg-card);background:linear-gradient(to right bottom,var(--bg-card),var(--bg-app));border:var(--border-light);border-radius:var(--radius-md);padding:2.5rem;transition:transform .3s cubic-bezier(.25,.8,.25,1),box-shadow .3s ease,border-color .3s ease;cursor:pointer;text-decoration:none;display:block;position:relative;overflow:hidden}.blog-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-card);border-color:var(--primary)}.blog-card:before{content:"";position:absolute;top:0;left:0;width:6px;height:100%;background:var(--primary);opacity:.8;transition:opacity .3s}.blog-card:hover:before{opacity:1}.blog-category{font-size:.75rem;text-transform:uppercase;letter-spacing:1.2px;color:var(--primary);font-weight:800;display:inline-block;margin-bottom:.75rem;background:rgba(var(--primary-rgb, 37, 99, 235),.08);padding:.35rem .75rem;border-radius:20px}.blog-title{font-size:1.75rem;font-weight:800;margin-bottom:1rem;color:var(--text-main);line-height:1.25;letter-spacing:-.02em}.blog-excerpt{color:var(--text-muted);font-size:1.05rem;line-height:1.7;margin-bottom:1.5rem;max-width:580px}.blog-read-more{font-weight:600;font-size:.95rem;color:var(--primary);display:inline-flex;align-items:center;gap:.5rem;transition:all .2s;background:transparent;border:none;padding:0}.blog-read-more i{transition:transform .2s}.blog-card:hover .blog-read-more{text-decoration:underline;text-underline-offset:4px}