*,*:before,*:after{box-sizing:border-box}:root{--primary: #6366f1;--primary-hover: #4f46e5;--primary-light: rgba(99, 102, 241, .1);--success: #22c55e;--success-light: rgba(34, 197, 94, .1);--danger: #ef4444;--danger-light: rgba(239, 68, 68, .1);--warning: #f59e0b;--warning-light: rgba(245, 158, 11, .1);--bg: #f8fafc;--surface: #ffffff;--surface-hover: #f1f5f9;--text: #0f172a;--text-secondary: #64748b;--text-muted: #94a3b8;--border: #e2e8f0;--border-focus: #6366f1;--shadow-sm: 0 1px 2px rgba(0,0,0,.04);--shadow: 0 1px 3px rgba(0,0,0,.08), 0 1px 2px rgba(0,0,0,.06);--shadow-lg: 0 10px 15px -3px rgba(0,0,0,.08), 0 4px 6px rgba(0,0,0,.04);--radius: 12px;--radius-sm: 8px;--transition: .2s ease}html{scroll-behavior:smooth}body{margin:0;font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;background:var(--bg);color:var(--text);line-height:1.6;-webkit-font-smoothing:antialiased}a{color:var(--primary);text-decoration:none;transition:color var(--transition)}a:hover{color:var(--primary-hover)}.container{max-width:1280px;margin:0 auto;padding:0 24px}.header{background:var(--surface);border-bottom:1px solid var(--border);position:sticky;top:0;z-index:100;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);background:#fffffff2}.header-inner{display:flex;align-items:center;justify-content:space-between;height:64px}.logo{font-size:1.375rem;font-weight:700;color:var(--text);display:flex;align-items:center;gap:10px}.logo-icon{width:32px;height:32px;background:linear-gradient(135deg,var(--primary) 0%,#8b5cf6 100%);border-radius:8px;display:flex;align-items:center;justify-content:center;color:#fff;font-size:16px}.nav{display:flex;gap:4px}.nav-link{padding:8px 16px;border-radius:var(--radius-sm);font-size:.9375rem;font-weight:500;color:var(--text-secondary);transition:all var(--transition)}.nav-link:hover{color:var(--text);background:var(--surface-hover)}.nav-link.active{color:var(--primary);background:var(--primary-light)}.nav-user{padding:8px 10px;font-size:.8125rem;font-weight:600;color:var(--text-secondary)}.auth-page{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:32px 16px}.auth-card{width:100%;max-width:440px}.auth-card:hover{transform:none}.auth-footer{display:flex;flex-direction:column;align-items:center;gap:4px;margin-top:16px}.password-rules{list-style:none;margin:0 0 20px;padding:0;display:grid;gap:6px;font-size:.8125rem;color:var(--text-muted)}.password-rules li.ok{color:var(--success)}.card{background:var(--surface);border-radius:var(--radius);box-shadow:var(--shadow);padding:24px;border:1px solid var(--border);transition:box-shadow var(--transition),transform var(--transition)}.card:hover{box-shadow:var(--shadow-lg)}.card-clickable:hover{transform:translateY(-2px)}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:10px 20px;border-radius:var(--radius-sm);font-size:.9375rem;font-weight:500;border:none;cursor:pointer;transition:all var(--transition);white-space:nowrap}.btn-sm{padding:6px 12px;font-size:.8125rem}.btn-lg{padding:12px 24px;font-size:1rem}.btn-primary{background:var(--primary);color:#fff;box-shadow:0 1px 2px #6366f14d}.btn-primary:hover{background:var(--primary-hover);transform:translateY(-1px);box-shadow:0 4px 8px #6366f14d}.btn-primary:active{transform:translateY(0)}.btn-secondary{background:var(--surface);color:var(--text);border:1px solid var(--border)}.btn-secondary:hover{background:var(--surface-hover);border-color:var(--text-muted)}.btn-danger{background:var(--danger);color:#fff;box-shadow:0 1px 2px #ef44444d}.btn-danger:hover{background:#dc2626;transform:translateY(-1px)}.btn-ghost{background:transparent;color:var(--text-secondary)}.btn-ghost:hover{background:var(--surface-hover);color:var(--text)}.btn:disabled{opacity:.5;cursor:not-allowed;transform:none!important}.btn-icon{width:36px;height:36px;padding:0;border-radius:var(--radius-sm)}.input{width:100%;padding:12px 16px;border:2px solid var(--border);border-radius:var(--radius-sm);font-size:1rem;font-family:inherit;background:var(--surface);transition:all var(--transition)}.input:hover{border-color:var(--text-muted)}.input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px var(--primary-light)}.input::placeholder{color:var(--text-muted)}.input:disabled{background:var(--surface-hover);cursor:not-allowed}.form-group{margin-bottom:20px}.form-label{display:block;margin-bottom:8px;font-weight:600;font-size:.875rem;color:var(--text)}.form-hint{margin-top:6px;font-size:.8125rem;color:var(--text-muted)}.badge{display:inline-flex;align-items:center;gap:4px;padding:4px 10px;border-radius:999px;font-size:.75rem;font-weight:600;text-transform:uppercase;letter-spacing:.025em}.badge-success{background:var(--success-light);color:var(--success)}.badge-danger{background:var(--danger-light);color:var(--danger)}.badge-warning{background:var(--warning-light);color:var(--warning)}.badge-neutral{background:var(--surface-hover);color:var(--text-secondary)}.page-title{font-size:1.75rem;font-weight:700;margin:0 0 8px;color:var(--text)}.page-subtitle{font-size:1rem;color:var(--text-secondary);margin:0}.section-title{font-size:1.125rem;font-weight:600;margin:0 0 16px;color:var(--text)}.text-success{color:var(--success)}.text-danger{color:var(--danger)}.text-muted{color:var(--text-muted)}.text-secondary{color:var(--text-secondary)}.loading{display:flex;flex-direction:column;justify-content:center;align-items:center;gap:16px;padding:48px;color:var(--text-secondary)}.spinner{width:40px;height:40px;border:3px solid var(--border);border-top-color:var(--primary);border-radius:50%;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.empty-state{text-align:center;padding:48px 24px;color:var(--text-secondary)}.empty-state-icon{width:64px;height:64px;background:var(--surface-hover);border-radius:50%;display:flex;align-items:center;justify-content:center;margin:0 auto 16px;font-size:28px}.empty-state h3{margin:0 0 8px;color:var(--text);font-size:1.125rem}.empty-state p{margin:0 0 24px}.error-box{background:var(--danger-light);border:1px solid rgba(239,68,68,.2);color:var(--danger);padding:16px 20px;border-radius:var(--radius-sm);display:flex;align-items:center;gap:12px}.toast-container{position:fixed;bottom:24px;right:24px;z-index:1000;display:flex;flex-direction:column;gap:12px}.toast{background:var(--text);color:#fff;padding:14px 20px;border-radius:var(--radius-sm);box-shadow:var(--shadow-lg);display:flex;align-items:center;gap:12px;animation:slideIn .3s ease;max-width:400px}.toast-success{background:var(--success)}.toast-error{background:var(--danger)}@keyframes slideIn{0%{opacity:0;transform:translate(100%)}to{opacity:1;transform:translate(0)}}.product-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(340px,1fr));gap:24px}.product-card{display:flex;flex-direction:column}.product-image{height:180px;background:linear-gradient(135deg,var(--bg) 0%,var(--surface-hover) 100%);border-radius:var(--radius-sm);margin-bottom:16px;display:flex;align-items:center;justify-content:center;overflow:hidden}.product-image img{max-width:100%;max-height:100%;object-fit:contain}.product-image-placeholder{color:var(--text-muted);font-size:.875rem}.product-title{font-weight:600;color:var(--text);margin-bottom:4px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;line-height:1.4}.product-store{font-size:.8125rem;color:var(--text-muted);margin-bottom:12px}.product-price{font-size:1.5rem;font-weight:700;color:var(--text)}.product-price-change{font-size:.875rem;font-weight:600}.price-down{color:var(--success)}.price-up{color:var(--danger)}.product-meta{display:flex;justify-content:space-between;align-items:center;font-size:.8125rem;margin:12px 0 16px;padding-top:12px;border-top:1px solid var(--border)}.product-actions{display:flex;gap:8px;margin-top:auto}.page-header{display:flex;justify-content:space-between;align-items:flex-start;margin-bottom:32px;flex-wrap:wrap;gap:16px}.page-header-content{flex:1}.stats-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:16px}.stat-item{text-align:center}.stat-label{font-size:.75rem;color:var(--text-muted);text-transform:uppercase;letter-spacing:.05em;margin-bottom:4px}.stat-value{font-size:1.25rem;font-weight:700}.detail-header{display:flex;gap:24px;margin-bottom:24px}.detail-image{width:200px;height:200px;flex-shrink:0;background:linear-gradient(135deg,var(--bg) 0%,var(--surface-hover) 100%);border-radius:var(--radius);display:flex;align-items:center;justify-content:center;overflow:hidden}.detail-image img{max-width:100%;max-height:100%;object-fit:contain}.detail-info{flex:1}.detail-title{font-size:1.375rem;font-weight:700;margin:0 0 8px;line-height:1.3}.detail-store{margin-bottom:12px}.detail-link{font-size:.9375rem}.detail-price-section{display:flex;align-items:center;gap:16px;padding:24px 0;border-top:1px solid var(--border);border-bottom:1px solid var(--border);margin:24px 0}.detail-current-price{font-size:2.5rem;font-weight:700}.detail-actions{display:flex;gap:12px;flex-wrap:wrap}.chart-container{height:360px;margin-top:16px}.back-link{display:inline-flex;align-items:center;gap:6px;color:var(--text-secondary);font-size:.875rem;font-weight:500;margin-bottom:24px}.back-link:hover{color:var(--primary)}.skeleton{background:linear-gradient(90deg,var(--surface-hover) 25%,var(--bg) 50%,var(--surface-hover) 75%);background-size:200% 100%;animation:shimmer 1.5s infinite;border-radius:var(--radius-sm)}@keyframes shimmer{0%{background-position:200% 0}to{background-position:-200% 0}}@media (max-width: 768px){.container{padding:0 16px}.header-inner{height:auto;min-height:56px;padding:8px 0;flex-wrap:wrap;gap:8px}.logo{font-size:1.125rem}.nav{flex-wrap:wrap}.nav-link{padding:6px 12px;font-size:.875rem}.product-grid{grid-template-columns:1fr}.detail-header{flex-direction:column}.detail-image{width:100%;height:240px}.page-title{font-size:1.5rem}.detail-current-price{font-size:2rem}.toast-container{left:16px;right:16px;bottom:16px}.toast{max-width:none}}.dialog-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#00000080;display:flex;align-items:center;justify-content:center;z-index:1000;animation:fadeIn .2s ease}.dialog{background:var(--surface);border-radius:var(--radius);padding:24px;max-width:400px;width:calc(100% - 32px);box-shadow:var(--shadow-lg);animation:scaleIn .2s ease}.dialog h3{margin:0 0 8px}.dialog p{margin:0 0 24px;color:var(--text-secondary)}.dialog-actions{display:flex;gap:12px;justify-content:flex-end}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@keyframes scaleIn{0%{opacity:0;transform:scale(.95)}to{opacity:1;transform:scale(1)}}.add-product-grid{display:grid;grid-template-columns:1fr 300px;gap:24px;align-items:start}@media (max-width: 768px){.add-product-grid{grid-template-columns:1fr}}.scheduler-banner{display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;padding:10px 14px;margin-bottom:20px;background:var(--primary-light);color:var(--text-secondary);border-radius:var(--radius-sm);font-size:.8125rem}.product-card.below-target{border-color:var(--success);box-shadow:0 0 0 1px var(--success-light)}.target-badge{margin-top:8px;font-size:.8125rem;color:var(--text-secondary)}.target-badge.hit{color:var(--success);font-weight:600}.check-error{font-size:.75rem;color:var(--danger);margin:0 0 12px;line-height:1.4}.target-form{display:flex;align-items:flex-end;gap:12px;margin-bottom:24px;flex-wrap:wrap}.toggle-label{display:inline-flex;align-items:center;gap:8px;font-size:.875rem;font-weight:500;cursor:pointer}