:root{--primary-color: #2563eb;--primary-hover: #1d4ed8;--bg-color: #f8fafc;--card-bg: #ffffff;--text-main: #1e293b;--text-muted: #64748b;--border-color: #e2e8f0;--success-color: #22c55e;--error-color: #ef4444;--shadow: 0 4px 6px -1px rgb(0 0 0 / .1), 0 2px 4px -2px rgb(0 0 0 / .1);font-family:Inter,system-ui,-apple-system,sans-serif;line-height:1.5;font-weight:400;color:var(--text-main);background-color:var(--bg-color)}body{margin:0;min-height:100vh}#app{max-width:1200px;margin:0 auto;padding:2rem}nav{background:var(--card-bg);padding:1rem 2rem;border-radius:12px;box-shadow:var(--shadow);margin-bottom:2rem}nav ul{list-style:none;padding:0;margin:0;display:flex;gap:2rem;justify-content:center}nav a{text-decoration:none;color:var(--text-muted);font-weight:600;transition:color .2s}nav a:hover{color:var(--primary-color)}.container{display:grid;grid-template-columns:repeat(auto-fit,minmax(350px,1fr));gap:2rem;align-items:start}.card{background:var(--card-bg);padding:1.5rem;border-radius:12px;box-shadow:var(--shadow);border:1px solid var(--border-color)}h1,h2,h3{margin-top:0;color:var(--text-main)}.product-list{display:grid;grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:1.5rem;margin-top:1rem}.product-card{background:var(--card-bg);border:1px solid var(--border-color);border-radius:12px;padding:1rem;transition:transform .2s,box-shadow .2s}.product-card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}.product-price{font-weight:700;color:var(--primary-color);font-size:1.25rem}input{width:100%;padding:.75rem;border:1px solid var(--border-color);border-radius:8px;font-size:1rem;box-sizing:border-box;margin-bottom:1rem;transition:border-color .2s}input:focus{outline:none;border-color:var(--primary-color);ring:2px solid var(--primary-color)}button{background-color:var(--primary-color);color:#fff;border:none;padding:.75rem 1.5rem;border-radius:8px;font-weight:600;cursor:pointer;transition:background-color .2s}button:hover:not(:disabled){background-color:var(--primary-hover)}button:disabled{opacity:.5;cursor:not-allowed}.rt-toast-container{position:fixed;bottom:2rem;right:2rem;display:flex;flex-direction:column;gap:.5rem;z-index:1000}.rt-toast{background:#1e293b;color:#fff;padding:.75rem 1rem;border-radius:8px;font-size:.875rem;display:flex;align-items:center;gap:.75rem;box-shadow:var(--shadow);animation:slideIn .3s ease-out}.rt-toast.error{border-left:4px solid var(--error-color)}.rt-toast.success{border-left:4px solid var(--success-color)}.rt-ms{font-weight:700;background:#ffffff1a;padding:2px 6px;border-radius:4px}@keyframes slideIn{0%{transform:translate(100%);opacity:0}to{transform:translate(0);opacity:1}}