:root{--primary: #3b82f6;--primary-dark: #2563eb;--danger: #ef4444;--success: #22c55e;--bg: #f8fafc;--surface: #ffffff;--text: #1e293b;--text-secondary: #64748b;--border: #e2e8f0;--radius: 8px}*{box-sizing:border-box;margin:0;padding:0}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;background:var(--bg);color:var(--text);line-height:1.5;min-width:320px}.header{display:flex;align-items:center;justify-content:space-between;padding:12px 20px;background:var(--surface);border-bottom:1px solid var(--border);position:sticky;top:0;z-index:100}.header-logo{font-weight:700;font-size:18px;color:var(--primary);text-decoration:none}.header-right{display:flex;align-items:center;gap:12px}.header-cart{position:relative;text-decoration:none;font-size:20px}.header-link{color:var(--text-secondary);text-decoration:none;font-size:14px}.header-link:hover{color:var(--primary)}.header-user{color:var(--text-secondary);font-size:14px}.badge{position:absolute;top:-6px;right:-8px;background:var(--danger);color:#fff;font-size:10px;width:18px;height:18px;border-radius:50%;display:flex;align-items:center;justify-content:center}.page{max-width:1200px;margin:0 auto;padding:20px}.page-center{display:flex;align-items:center;justify-content:center;min-height:100vh;padding:20px}.page-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px}.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:20px}.card-clickable{cursor:pointer;transition:box-shadow .2s}.card-clickable:hover{box-shadow:0 4px 12px #0000001a}.card-admin{border-color:var(--primary)}.cards-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:16px;margin-top:20px}.login-card{width:100%;max-width:400px}.login-card h1{text-align:center;color:var(--primary);margin-bottom:4px}.login-card .subtitle{text-align:center;color:var(--text-secondary);margin-bottom:20px}.form-group{margin-bottom:12px}.form-group label{display:block;font-size:13px;font-weight:500;color:var(--text-secondary);margin-bottom:4px}.form-group input,.form-group select{width:100%;padding:8px 12px;border:1px solid var(--border);border-radius:var(--radius);font-size:14px;outline:none}.form-group input:focus,.form-group select:focus{border-color:var(--primary)}.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}.form-grid .full-width{grid-column:1 / -1}.checkbox-group{display:flex;gap:12px;flex-wrap:wrap}.checkbox-label{display:flex;align-items:center;gap:4px;font-size:14px;cursor:pointer}.btn{padding:8px 16px;border:1px solid var(--border);border-radius:var(--radius);background:var(--surface);cursor:pointer;font-size:14px;transition:background .2s}.btn:hover{background:var(--bg)}.btn-primary{background:var(--primary);color:#fff;border-color:var(--primary)}.btn-primary:hover{background:var(--primary-dark)}.btn-danger{background:var(--danger);color:#fff;border-color:var(--danger)}.btn-danger:hover{opacity:.9}.btn-sm{padding:4px 10px;font-size:12px}.btn-full{width:100%;margin-top:12px}.table-wrap{overflow-x:auto}.table{width:100%;border-collapse:collapse;font-size:14px}.table th,.table td{padding:8px 12px;text-align:left;border-bottom:1px solid var(--border);white-space:nowrap}.table th{background:var(--bg);font-weight:600;color:var(--text-secondary);font-size:12px;text-transform:uppercase}.table tr:hover td{background:#f1f5f9}.qty-input{width:60px;padding:4px;text-align:center;border:1px solid var(--border);border-radius:4px}.modal-overlay{position:fixed;inset:0;background:#0006;display:flex;align-items:center;justify-content:center;z-index:200;padding:20px}.modal{background:var(--surface);border-radius:var(--radius);padding:24px;max-width:500px;width:100%;max-height:90vh;overflow-y:auto}.modal-wide{max-width:700px}.modal h3{margin-bottom:16px}.modal-actions{display:flex;gap:8px;margin-top:16px}.hint{font-size:12px;color:var(--text-secondary);margin-top:4px}.toast{position:fixed;bottom:20px;left:50%;transform:translate(-50%);background:var(--text);color:#fff;padding:10px 24px;border-radius:20px;font-size:14px;z-index:300;animation:fadeIn .3s}.alert{padding:10px 16px;border-radius:var(--radius);margin-bottom:12px;font-size:14px}.alert-error{background:#fef2f2;color:var(--danger);border:1px solid #fecaca}.spinner{text-align:center;padding:40px;color:var(--text-secondary)}.loading{text-align:center;padding:20px}.empty-state{text-align:center;padding:60px 20px;color:var(--text-secondary)}.sales-nav{display:flex;gap:0;margin-bottom:16px;border-bottom:2px solid var(--border)}.sales-nav a{padding:8px 16px;text-decoration:none;color:var(--text-secondary);font-weight:500;border-bottom:2px solid transparent;margin-bottom:-2px}.sales-nav a.active{color:var(--primary);border-bottom-color:var(--primary)}.search-bar{margin-bottom:16px}.search-bar input{width:100%;padding:12px 16px;border:1px solid var(--border);border-radius:var(--radius);font-size:16px}.search-bar input:focus{border-color:var(--primary);outline:none}.results-info{font-size:13px;color:var(--text-secondary);margin-bottom:8px}.cart-totals{padding:16px 0;text-align:right}.cart-totals .total{font-size:18px;margin-top:8px}.cart-actions{display:flex;flex-wrap:wrap;gap:8px}.admin-layout{display:flex;min-height:calc(100vh - 56px)}.sidebar{width:220px;background:var(--surface);border-right:1px solid var(--border);padding:20px;flex-shrink:0}.sidebar h3{margin-bottom:16px;font-size:16px}.sidebar nav{display:flex;flex-direction:column;gap:4px;margin-bottom:20px}.sidebar nav a{padding:8px 12px;text-decoration:none;color:var(--text);border-radius:var(--radius);font-size:14px}.sidebar nav a.active{background:var(--primary);color:#fff}.sidebar nav a:hover:not(.active){background:var(--bg)}.admin-content{flex:1;padding:20px;overflow-x:auto}.burger{display:none;position:fixed;top:68px;left:12px;z-index:150;padding:4px 8px;background:var(--surface);border:1px solid var(--border);border-radius:4px;font-size:18px;cursor:pointer}.stats-cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(180px,1fr));gap:12px;margin-bottom:20px}.stat-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:12px 16px}.stat-label{display:block;font-size:12px;color:var(--text-secondary);text-transform:uppercase}.stat-value{display:block;font-size:16px;font-weight:600;margin-top:4px}.log-viewer{margin-top:20px}.log-header{display:flex;align-items:center;gap:12px;margin-bottom:12px;flex-wrap:wrap}.log-header h3{flex:0 0 auto}.log-header input{flex:1;min-width:150px;padding:6px 12px;border:1px solid var(--border);border-radius:var(--radius)}.log-content{background:#1e293b;color:#e2e8f0;padding:16px;border-radius:var(--radius);font-size:12px;line-height:1.6;overflow-x:auto;max-height:500px;overflow-y:auto}.log-error{color:#ef4444}.log-warn{color:#f59e0b}.log-info{color:#94a3b8}.toggle{padding:4px 12px;border-radius:12px;border:none;cursor:pointer;font-size:12px}.toggle.on{background:var(--success);color:#fff}.toggle.off{background:var(--border);color:var(--text-secondary)}.settings-section{margin-bottom:24px}.settings-section h3{margin-bottom:12px;padding-bottom:8px;border-bottom:1px solid var(--border)}@keyframes fadeIn{0%{opacity:0;transform:translate(-50%) translateY(10px)}to{opacity:1;transform:translate(-50%) translateY(0)}}@media(max-width:768px){.form-grid{grid-template-columns:1fr}.sidebar{display:none;position:fixed;top:56px;left:0;bottom:0;z-index:150;box-shadow:4px 0 12px #0000001a}.sidebar.open{display:flex;flex-direction:column}.burger{display:block}.admin-layout{flex-direction:column}.admin-content{padding:12px}.header-user{display:none}.stats-cards{grid-template-columns:1fr 1fr}.cart-actions{flex-direction:column}.cart-actions .btn{width:100%}}