:root{--primary: #2563eb;--primary-hover: #1d4ed8;--primary-light: #eff6ff;--primary-border: #bfdbfe;--success: #16a34a;--danger: #dc2626;--danger-hover: #b91c1c;--danger-light: #fef2f2;--danger-border: #fecaca;--surface: #ffffff;--background: #f8fafc;--border: #e2e8f0;--border-focus: #94a3b8;--text-main: #0f172a;--text-muted: #64748b;--text-subtle: #94a3b8;--radius-sm: 6px;--radius-md: 10px;--radius-lg: 14px;--shadow-sm: 0 1px 2px 0 rgb(0 0 0 / .05);--shadow-md: 0 4px 6px -1px rgb(0 0 0 / .08), 0 2px 4px -2px rgb(0 0 0 / .06);--shadow-lg: 0 10px 15px -3px rgb(0 0 0 / .1), 0 4px 6px -4px rgb(0 0 0 / .08);--font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;--font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}body{font-family:var(--font-sans);background-color:var(--background);color:var(--text-main);line-height:1.5;-webkit-font-smoothing:antialiased;min-height:100vh}.app-header{background-color:var(--surface);border-bottom:1px solid var(--border);position:sticky;top:0;z-index:40;box-shadow:var(--shadow-sm)}.header-container{max-width:1200px;margin:0 auto;padding:1rem 1.5rem;display:flex;align-items:center;justify-content:space-between;gap:1rem}.brand{display:flex;align-items:center;gap:.875rem}.logo-icon{font-size:2rem;line-height:1}.brand h1{font-size:1.25rem;font-weight:700;color:var(--text-main)}.subtitle{font-size:.8125rem;color:var(--text-muted)}.main-container{max-width:1200px;margin:0 auto;padding:1.5rem;display:flex;flex-direction:column;gap:1.5rem}.btn{display:inline-flex;align-items:center;justify-content:center;gap:.5rem;padding:.5rem 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.625rem;font-size:.8125rem}.btn-close{background:none;border:none;font-size:1.5rem;line-height:1;color:var(--text-muted);cursor:pointer}.btn-close:hover{color:var(--text-main)}.form-panel{background-color:var(--surface);border:1px solid var(--border);border-radius:var(--radius-lg);padding:1.5rem;box-shadow:var(--shadow-md);transition:all .25s ease-in-out}.form-panel.hidden{display:none}.form-panel-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:1.25rem;padding-bottom:.75rem;border-bottom:1px solid var(--border)}.form-panel-header h2{font-size:1.125rem;font-weight:600}.form-row{display:flex;gap:1rem}.flex-1{flex:1}.flex-2{flex:2}.form-group{display:flex;flex-direction:column;gap:.375rem;margin-bottom:1rem}.form-group label{font-size:.875rem;font-weight:500;color:var(--text-main)}.required{color:var(--danger)}.form-group input,.form-group textarea{padding:.5rem .75rem;font-size:.875rem;font-family:inherit;border:1px solid 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1.25rem}.filter-bar-header{display:flex;align-items:center;flex-wrap:wrap;gap:.625rem}.filter-label{font-size:.875rem;font-weight:600;color:var(--text-muted)}.tag-filter-bar{display:flex;flex-wrap:wrap;gap:.375rem}.tag-filter-btn{background-color:#f1f5f9;border:1px solid var(--border);color:var(--text-muted);border-radius:9999px;padding:.25rem .75rem;font-size:.8125rem;font-weight:500;cursor:pointer;transition:all .15s ease}.tag-filter-btn:hover{background-color:#e2e8f0;color:var(--text-main)}.tag-filter-btn.active{background-color:var(--primary);border-color:var(--primary);color:#fff}.badge{display:inline-block;padding:.25rem .625rem;font-size:.75rem;font-weight:600;border-radius:9999px;background-color:var(--primary-light);color:var(--primary);border:1px solid var(--primary-border)}.products-section{position:relative}.product-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(320px,1fr));gap:1.5rem}.product-card{background-color:var(--surface);border:1px solid var(--border);border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-sm);display:flex;flex-direction:column;transition:transform .15s ease,box-shadow .15s ease}.product-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-md)}.card-image-wrap{position:relative;width:100%;padding-top:60%;background-color:#e2e8f0;overflow:hidden}.card-image{position:absolute;top:0;left:0;width:100%;height:100%;object-fit:cover;transition:transform .3s ease}.product-card:hover 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var(--border);border-radius:var(--radius-sm);background-color:#f8fafc;overflow:hidden;font-size:.8125rem}.specs-details summary{padding:.5rem .75rem;cursor:pointer;font-weight:600;color:var(--text-muted);-webkit-user-select:none;user-select:none;outline:none;background-color:#f1f5f9}.specs-details summary:hover{color:var(--text-main)}.specs-details[open] summary{border-bottom:1px solid var(--border)}.specs-content{padding:.75rem}.specs-table{width:100%;border-collapse:collapse}.specs-table tr:not(:last-child){border-bottom:1px dashed var(--border)}.spec-key{font-weight:600;color:var(--text-muted);padding:.25rem .5rem .25rem 0;width:40%;word-break:break-all}.spec-value{color:var(--text-main);padding:.25rem 0;font-family:var(--font-mono);font-size:.75rem;word-break:break-all}.empty-specs{color:var(--text-subtle);font-style:italic;font-size:.75rem}.card-footer{margin-top:auto;padding-top:.875rem;border-top:1px solid var(--border);display:flex;justify-content:space-between;align-items:center}.card-created-at{font-size:.75rem;color:var(--text-subtle)}.loading-state,.empty-state,.error-state{text-align:center;padding:3rem 1.5rem;background-color:var(--surface);border:1px dashed var(--border);border-radius:var(--radius-lg)}.empty-icon{font-size:2.5rem;margin-bottom:.5rem}.spinner-large{width:36px;height:36px;border:3px solid var(--border);border-top-color:var(--primary);border-radius:50%;margin:0 auto 1rem;animation:spin .8s linear infinite}.spinner{display:inline-block;width:14px;height:14px;border:2px solid rgba(255,255,255,.4);border-top-color:#fff;border-radius:50%;animation:spin .8s linear infinite}.hidden{display:none!important}@keyframes spin{to{transform:rotate(360deg)}}.toast-container{position:fixed;bottom:1.5rem;right:1.5rem;display:flex;flex-direction:column;gap:.5rem;z-index:50}.toast{padding:.75rem 1.25rem;border-radius:var(--radius-md);font-size:.875rem;font-weight:500;box-shadow:var(--shadow-lg);display:flex;align-items:center;gap:.5rem;animation:slideIn .2s ease-out forwards}.toast-success{background-color:#15803d;color:#fff}.toast-error{background-color:#b91c1c;color:#fff}@keyframes slideIn{0%{transform:translateY(100%);opacity:0}to{transform:translateY(0);opacity:1}}@media(max-width:640px){.header-container{flex-direction:column;align-items:stretch}.form-row{flex-direction:column}.controls-section{flex-direction:column;align-items:stretch}}