:root{--bg: #f4f6fb;--card: #ffffff;--border: #e3e8f0;--text: #1f2937;--muted: #6b7280;--primary: #4f46e5;--primary-dark: #4338ca;--danger: #dc2626;--danger-dark: #b91c1c;--success: #059669;--warn: #d97706;--shadow: 0 1px 3px rgba(0, 0, 0, .08), 0 1px 2px rgba(0, 0, 0, .04)}*{box-sizing:border-box}body{margin:0;font-family:Segoe UI,system-ui,-apple-system,sans-serif;background:var(--bg);color:var(--text)}.app{min-height:100vh}.navbar{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:12px;background:var(--card);padding:14px 24px;box-shadow:var(--shadow);position:sticky;top:0;z-index:10}.brand{font-weight:700;font-size:1.2rem}.nav-links{display:flex;gap:6px;flex-wrap:wrap}.nav-link{text-decoration:none;color:var(--muted);padding:8px 14px;border-radius:8px;font-weight:500}.nav-link:hover{background:var(--bg)}.nav-link.active{background:var(--primary);color:#fff}.content{max-width:1100px;margin:0 auto;padding:24px 16px 64px}.page-header{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:12px;margin-bottom:20px}.page-header h1{margin:0;font-size:1.6rem}.card{background:var(--card);border:1px solid var(--border);border-radius:12px;box-shadow:var(--shadow);padding:20px}.stats-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:16px;margin-bottom:24px}.stat-card{background:var(--card);border:1px solid var(--border);border-radius:12px;padding:20px;box-shadow:var(--shadow)}.stat-card .label{color:var(--muted);font-size:.85rem;text-transform:uppercase;letter-spacing:.04em}.stat-card .value{font-size:2rem;font-weight:700;margin-top:6px}.stat-card.warn .value{color:var(--warn)}.table-wrap{overflow-x:auto;background:var(--card);border:1px solid var(--border);border-radius:12px;box-shadow:var(--shadow)}table{width:100%;border-collapse:collapse;min-width:540px}th,td{text-align:left;padding:12px 16px;border-bottom:1px solid var(--border);font-size:.92rem}th{background:#fafbfe;color:var(--muted);font-weight:600}tr:last-child td{border-bottom:none}.badge{display:inline-block;padding:2px 10px;border-radius:999px;font-size:.78rem;font-weight:600}.badge-low{background:#fef3c7;color:var(--warn)}.badge-ok{background:#d1fae5;color:var(--success)}.btn{border:none;border-radius:8px;padding:9px 16px;font-size:.9rem;font-weight:600;cursor:pointer;background:var(--primary);color:#fff}.btn:hover{background:var(--primary-dark)}.btn:disabled{opacity:.6;cursor:not-allowed}.btn-secondary{background:#eef0f6;color:var(--text)}.btn-secondary:hover{background:#e2e6f0}.btn-danger{background:var(--danger)}.btn-danger:hover{background:var(--danger-dark)}.btn-sm{padding:6px 10px;font-size:.82rem}.row-actions{display:flex;gap:8px}.form-grid{display:grid;gap:14px}.field{display:flex;flex-direction:column;gap:6px}.field label{font-size:.85rem;font-weight:600;color:var(--muted)}.field input,.field select{padding:10px 12px;border:1px solid var(--border);border-radius:8px;font-size:.95rem;background:#fff}.field input:focus,.field select:focus{outline:none;border-color:var(--primary)}.field .error-text{color:var(--danger);font-size:.8rem}.form-row{display:grid;grid-template-columns:1fr 1fr;gap:14px}@media (max-width: 560px){.form-row{grid-template-columns:1fr}}.modal-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#11182780;display:flex;align-items:flex-start;justify-content:center;padding:40px 16px;z-index:50;overflow-y:auto}.modal{background:var(--card);border-radius:14px;width:100%;max-width:520px;padding:24px;box-shadow:0 10px 40px #0003}.modal h2{margin:0 0 16px;font-size:1.25rem}.modal-actions{display:flex;justify-content:flex-end;gap:10px;margin-top:20px}.line-item{display:grid;grid-template-columns:1fr 90px auto;gap:10px;align-items:end}.order-total{margin-top:14px;font-weight:700;font-size:1.05rem;text-align:right}.link-btn{background:none;border:none;color:var(--primary);cursor:pointer;font-weight:600;padding:0}.empty,.loading{text-align:center;color:var(--muted);padding:40px 16px}.muted{color:var(--muted)}.toast-container{position:fixed;bottom:20px;right:20px;display:flex;flex-direction:column;gap:10px;z-index:100}.toast{padding:12px 18px;border-radius:10px;color:#fff;font-weight:500;box-shadow:0 6px 20px #0000002e;cursor:pointer;max-width:340px}.toast-success{background:var(--success)}.toast-error{background:var(--danger)}