:root {
            --primary: #1a5f2a;
            --primary-light: #2d8a3e;
            --primary-dark: #0f3d1a;
            --accent: #d4a843;
            --accent-light: #f0d78c;
            --accent-dark: #b08a2e;
            --danger: #dc3545;
            --danger-light: #ff6b7a;
            --warning: #f39c12;
            --warning-light: #f5b041;
            --success: #27ae60;
            --success-light: #2ecc71;
            --info: #3498db;
            --info-light: #5dade2;
            --bg: #f0f2f5;
            --card-bg: #ffffff;
            --text: #1a1a2e;
            --text-secondary: #4a5568;
            --text-light: #718096;
            --border: #e2e8f0;
            --shadow-sm: 0 1px 3px rgba(0,0,0,0.04);
            --shadow: 0 4px 20px rgba(0,0,0,0.06);
            --shadow-lg: 0 10px 40px rgba(0,0,0,0.1);
            --shadow-xl: 0 20px 60px rgba(0,0,0,0.12);
            --glass-bg: rgba(255,255,255,0.85);
            --radius-sm: 8px;
            --radius: 16px;
            --radius-lg: 24px;
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

        * { margin: 0; padding: 0; box-sizing: border-box; }

        body {
            font-family: 'Inter', sans-serif;
            background: linear-gradient(135deg, #f5f7fa 0%, #e4e8ec 100%);
            color: var(--text);
            min-height: 100vh;
            overflow-x: hidden;
        }

        /* ===== SIDEBAR ===== */
        .sidebar {
            position: fixed;
            left: 0; top: 0;
            width: 280px; height: 100vh;
            background: linear-gradient(180deg, var(--primary-dark) 0%, var(--primary) 50%, #1a4a24 100%);
            color: white;
            padding: 0;
            overflow-y: auto;
            z-index: 1000;
            box-shadow: 4px 0 30px rgba(0,0,0,0.2);
            display: flex;
            flex-direction: column;
        }

        .sidebar::before {
            content: '';
            position: absolute;
            top: 0; left: 0; right: 0; bottom: 0;
            background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.03'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
            opacity: 0.5;
            pointer-events: none;
        }

        .sidebar-header {
            padding: 32px 24px 24px;
            border-bottom: 1px solid rgba(255,255,255,0.08);
            text-align: center;
            position: relative;
            z-index: 1;
        }

        .logo-container {
            position: relative;
            display: inline-block;
            margin-bottom: 16px;
            width: 80px;
            height: 80px;
        }

        .logo-img {
            width: 80px;
            height: 80px;
            object-fit: contain;
            filter: contrast(0) brightness(2);
            transition: var(--transition);
            position: relative;
            z-index: 2;
        }

        .logo-container::before {
            content: '';
            position: absolute;
            inset: -12px;
            border-radius: 24px;
            background: linear-gradient(135deg, var(--accent) 0%, var(--accent-dark) 100%);
            opacity: 0.4;
            z-index: 1;
            animation: pulse-glow 2s ease-in-out infinite;
        }

        .logo-container::after {
            content: '';
            position: absolute;
            inset: -6px;
            border-radius: 20px;
            background: linear-gradient(135deg, var(--accent-light) 0%, var(--accent) 100%);
            opacity: 0.2;
            z-index: 0;
            animation: pulse-glow 2s ease-in-out infinite 0.5s;
        }

        .logo-container:hover .logo-img {
            transform: scale(1.08);
            filter: contrast(0) brightness(2.5);
        }

        @keyframes pulse-glow {
            0%, 100% { transform: scale(1); opacity: 0.3; }
            50% { transform: scale(1.05); opacity: 0.5; }
        }

        .sidebar-header h1 {
            font-family: 'Playfair Display', serif;
            font-size: 1.5rem;
            font-weight: 700;
            letter-spacing: 0.5px;
            color: white;
            text-shadow: 0 2px 4px rgba(0,0,0,0.2);
        }

        .sidebar-header p {
            font-size: 0.7rem;
            opacity: 0.6;
            margin-top: 6px;
            letter-spacing: 2px;
            text-transform: uppercase;
            font-weight: 500;
        }

        .nav-menu {
            padding: 20px 16px;
            list-style: none;
            flex: 1;
            position: relative;
            z-index: 1;
        }

        .nav-menu li { margin-bottom: 6px; }

        .nav-menu a {
            display: flex;
            align-items: center;
            padding: 14px 18px;
            color: rgba(255,255,255,0.7);
            text-decoration: none;
            border-radius: 14px;
            transition: var(--transition);
            font-size: 0.9rem;
            font-weight: 500;
            position: relative;
            overflow: hidden;
        }

        .nav-menu a::before {
            content: '';
            position: absolute;
            left: 0; top: 0;
            width: 4px; height: 100%;
            background: var(--accent);
            border-radius: 0 4px 4px 0;
            transform: scaleY(0);
            transition: var(--transition);
        }

        .nav-menu a:hover {
            background: rgba(255,255,255,0.08);
            color: white;
            transform: translateX(4px);
        }

        .nav-menu a:hover::before { transform: scaleY(1); }

        .nav-menu a.active {
            background: linear-gradient(135deg, rgba(255,255,255,0.15) 0%, rgba(255,255,255,0.05) 100%);
            color: white;
            box-shadow: 0 4px 15px rgba(0,0,0,0.2);
            backdrop-filter: blur(10px);
        }

        .nav-menu a.active::before { transform: scaleY(1); }

        .nav-menu i {
            width: 28px;
            font-size: 1.05rem;
            margin-right: 14px;
            text-align: center;
            transition: var(--transition);
        }

        .nav-menu a:hover i { transform: scale(1.15); }

        .nav-badge {
            background: linear-gradient(135deg, var(--danger) 0%, #ff4757 100%);
            color: white;
            padding: 3px 10px;
            border-radius: 20px;
            font-size: 0.7rem;
            font-weight: 700;
            margin-left: auto;
            box-shadow: 0 2px 8px rgba(220, 53, 69, 0.4);
            animation: badge-pulse 2s ease-in-out infinite;
        }

        @keyframes badge-pulse {
            0%, 100% { box-shadow: 0 2px 8px rgba(220, 53, 69, 0.4); }
            50% { box-shadow: 0 2px 16px rgba(220, 53, 69, 0.6); }
        }

        .sidebar-footer {
            padding: 20px;
            border-top: 1px solid rgba(255,255,255,0.08);
            text-align: center;
            font-size: 0.75rem;
            opacity: 0.5;
            position: relative;
            z-index: 1;
        }

        /* ===== MAIN CONTENT ===== */
        .main-content {
            margin-left: 280px;
            padding: 0;
            min-height: 100vh;
        }

        .topbar {
            background: var(--glass-bg);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            padding: 16px 32px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            box-shadow: var(--shadow-sm);
            position: sticky;
            top: 0;
            z-index: 100;
            border-bottom: 1px solid rgba(255,255,255,0.5);
        }

        .topbar h2 {
            font-family: 'Playfair Display', serif;
            font-size: 1.6rem;
            color: var(--primary);
            font-weight: 700;
            position: relative;
        }

        .topbar h2::after {
            content: '';
            position: absolute;
            bottom: -4px; left: 0;
            width: 40px; height: 3px;
            background: linear-gradient(90deg, var(--accent), transparent);
            border-radius: 2px;
        }

        .topbar-actions {
            display: flex;
            align-items: center;
            gap: 16px;
        }

        .search-box { position: relative; }

        .search-box input {
            padding: 12px 16px 12px 44px;
            border: 2px solid var(--border);
            border-radius: 14px;
            width: 300px;
            font-size: 0.9rem;
            transition: var(--transition);
            background: var(--card-bg);
            font-family: 'Inter', sans-serif;
        }

        .search-box input:focus {
            outline: none;
            border-color: var(--primary-light);
            box-shadow: 0 0 0 4px rgba(45, 138, 62, 0.1), 0 4px 12px rgba(0,0,0,0.05);
            width: 340px;
        }

        .search-box i {
            position: absolute;
            left: 16px; top: 50%;
            transform: translateY(-50%);
            color: var(--text-light);
            font-size: 0.95rem;
            transition: var(--transition);
        }

        .search-box input:focus + i { color: var(--primary-light); }

        /* Buttons */
        .btn {
            padding: 12px 24px;
            border: none;
            border-radius: 14px;
            font-size: 0.9rem;
            font-weight: 600;
            cursor: pointer;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-family: 'Inter', sans-serif;
            position: relative;
            overflow: hidden;
        }

        .btn::after {
            content: '';
            position: absolute;
            inset: 0;
            background: rgba(255,255,255,0.2);
            opacity: 0;
            transition: var(--transition);
        }

        .btn:hover::after { opacity: 1; }
        .btn:hover { transform: translateY(-2px); box-shadow: var(--shadow-lg); }
        .btn:active { transform: translateY(0); }

        .btn-primary {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
            color: white;
            box-shadow: 0 4px 16px rgba(26, 95, 42, 0.3);
        }
        .btn-primary:hover { box-shadow: 0 8px 24px rgba(26, 95, 42, 0.4); }

        .btn-danger {
            background: linear-gradient(135deg, var(--danger) 0%, var(--danger-light) 100%);
            color: white;
            box-shadow: 0 4px 16px rgba(220, 53, 69, 0.3);
        }

        .btn-warning {
            background: linear-gradient(135deg, var(--warning) 0%, var(--warning-light) 100%);
            color: white;
            box-shadow: 0 4px 16px rgba(243, 156, 18, 0.3);
        }

        .btn-success {
            background: linear-gradient(135deg, var(--success) 0%, var(--success-light) 100%);
            color: white;
            box-shadow: 0 4px 16px rgba(39, 174, 96, 0.3);
        }

        .btn-secondary {
            background: var(--card-bg);
            color: var(--text);
            border: 2px solid var(--border);
        }
        .btn-secondary:hover { border-color: var(--primary-light); color: var(--primary); }

        .btn-sm { padding: 8px 16px; font-size: 0.8rem; border-radius: 10px; }

        .btn-icon {
            width: 40px; height: 40px;
            padding: 0;
            border-radius: 12px;
            justify-content: center;
        }

        .content {
            padding: 32px;
            max-width: 1400px;
        }

        /* ===== STATS CARDS ===== */
        .stats-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            margin-bottom: 32px;
        }

        .stat-card {
            background: var(--card-bg);
            border-radius: var(--radius-lg);
            padding: 28px;
            box-shadow: var(--shadow);
            transition: var(--transition);
            position: relative;
            overflow: hidden;
            border: 1px solid rgba(255,255,255,0.5);
        }

        .stat-card::before {
            content: '';
            position: absolute;
            top: 0; left: 0;
            width: 100%; height: 4px;
            border-radius: var(--radius-lg) var(--radius-lg) 0 0;
        }

        .stat-card.primary::before { background: linear-gradient(90deg, var(--primary), var(--primary-light)); }
        .stat-card.success::before { background: linear-gradient(90deg, var(--success), var(--success-light)); }
        .stat-card.warning::before { background: linear-gradient(90deg, var(--warning), var(--warning-light)); }
        .stat-card.danger::before { background: linear-gradient(90deg, var(--danger), var(--danger-light)); }
        .stat-card.info::before { background: linear-gradient(90deg, var(--info), var(--info-light)); }

        .stat-card.info .stat-icon { 
            background: linear-gradient(135deg, rgba(52,152,219,0.1) 0%, rgba(93,173,226,0.15) 100%); 
            color: var(--info); 
        }

        .stat-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-xl);
        }

        .stat-header {
            display: flex;
            justify-content: space-between;
            align-items: flex-start;
            margin-bottom: 16px;
        }

        .stat-title {
            font-size: 0.8rem;
            color: var(--text-light);
            text-transform: uppercase;
            letter-spacing: 1px;
            font-weight: 700;
        }

        .stat-icon {
            width: 52px; height: 52px;
            border-radius: 16px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            transition: var(--transition);
        }

        .stat-card:hover .stat-icon { transform: scale(1.1) rotate(5deg); }

        .stat-card.primary .stat-icon { 
            background: linear-gradient(135deg, rgba(26,95,42,0.1) 0%, rgba(45,138,62,0.15) 100%); 
            color: var(--primary); 
        }
        .stat-card.success .stat-icon { 
            background: linear-gradient(135deg, rgba(39,174,96,0.1) 0%, rgba(46,204,113,0.15) 100%); 
            color: var(--success); 
        }
        .stat-card.warning .stat-icon { 
            background: linear-gradient(135deg, rgba(243,156,18,0.1) 0%, rgba(245,176,65,0.15) 100%); 
            color: var(--warning); 
        }
        .stat-card.danger .stat-icon { 
            background: linear-gradient(135deg, rgba(220,53,69,0.1) 0%, rgba(255,107,122,0.15) 100%); 
            color: var(--danger); 
        }

        .stat-value {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--text);
            margin-bottom: 8px;
            line-height: 1;
            letter-spacing: -0.5px;
        }

        .stat-change {
            font-size: 0.85rem;
            font-weight: 600;
            display: flex;
            align-items: center;
            gap: 4px;
        }

        .stat-change.positive { color: var(--success); }
        .stat-change.negative { color: var(--danger); }

        /* ===== CARDS ===== */
        .card {
            background: var(--card-bg);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow);
            margin-bottom: 28px;
            overflow: hidden;
            border: 1px solid rgba(255,255,255,0.5);
            transition: var(--transition);
        }

        .card:hover { box-shadow: var(--shadow-lg); }

        .card-header {
            padding: 24px 28px;
            border-bottom: 1px solid var(--border);
            display: flex;
            justify-content: space-between;
            align-items: center;
            background: linear-gradient(180deg, rgba(255,255,255,1) 0%, rgba(250,250,252,1) 100%);
        }

        .card-title {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--text);
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .card-title i { color: var(--primary-light); font-size: 1rem; }
        .card-body { padding: 28px; }

        /* ===== TABLES ===== */
        .table-responsive {
            overflow-x: auto;
            border-radius: var(--radius);
            border: 1px solid var(--border);
        }

        table { width: 100%; border-collapse: separate; border-spacing: 0; }

        th {
            background: linear-gradient(180deg, #f8fafc 0%, #f1f5f9 100%);
            font-weight: 700;
            color: var(--text-secondary);
            text-transform: uppercase;
            font-size: 0.7rem;
            letter-spacing: 1.5px;
            padding: 16px;
            border-bottom: 2px solid var(--border);
        }

        td {
            padding: 16px;
            font-size: 0.9rem;
            color: var(--text-secondary);
            border-bottom: 1px solid var(--border);
            transition: var(--transition);
        }

        tr { transition: var(--transition); }
        tr:hover td { background: rgba(26, 95, 42, 0.02); color: var(--text); }
        tr:last-child td { border-bottom: none; }

        /* NEW: Clickable medicine rows (Task 3) */
        .medicine-row { cursor: pointer; }
        .medicine-row:hover td { background: rgba(26, 95, 42, 0.04); }

        /* Badges */
        .badge {
            padding: 6px 14px;
            border-radius: 20px;
            font-size: 0.75rem;
            font-weight: 700;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: var(--transition);
        }

        .badge-success {
            background: linear-gradient(135deg, rgba(39,174,96,0.12) 0%, rgba(46,204,113,0.08) 100%);
            color: var(--success);
            border: 1px solid rgba(39,174,96,0.2);
        }
        .badge-warning {
            background: linear-gradient(135deg, rgba(243,156,18,0.12) 0%, rgba(245,176,65,0.08) 100%);
            color: var(--warning);
            border: 1px solid rgba(243,156,18,0.2);
        }
        .badge-danger {
            background: linear-gradient(135deg, rgba(220,53,69,0.12) 0%, rgba(255,107,122,0.08) 100%);
            color: var(--danger);
            border: 1px solid rgba(220,53,69,0.2);
        }
        .badge-info {
            background: linear-gradient(135deg, rgba(52,152,219,0.12) 0%, rgba(93,173,226,0.08) 100%);
            color: var(--info);
            border: 1px solid rgba(52,152,219,0.2);
        }
        .badge:hover { transform: scale(1.05); }

        /* ===== FORMS ===== */
        .form-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }

        .form-group { margin-bottom: 0; position: relative; }
        .form-group.full-width { grid-column: 1 / -1; }

        .form-label {
            display: block;
            margin-bottom: 10px;
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--text);
        }

        .form-label .required { color: var(--danger); margin-left: 2px; }

        .form-control {
            width: 100%;
            padding: 14px 18px;
            border: 2px solid var(--border);
            border-radius: 14px;
            font-size: 0.9rem;
            transition: var(--transition);
            font-family: 'Inter', sans-serif;
            background: var(--card-bg);
            color: var(--text);
        }

        .form-control:focus {
            outline: none;
            border-color: var(--primary-light);
            box-shadow: 0 0 0 4px rgba(45, 138, 62, 0.1), 0 4px 12px rgba(0,0,0,0.05);
        }
        .form-control:hover { border-color: #cbd5e0; }

        select.form-control {
            cursor: pointer;
            appearance: none;
            background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' fill='%23718096' viewBox='0 0 16 16'%3E%3Cpath d='M7.247 11.14 2.451 5.658C1.885 5.013 2.345 4 3.204 4h9.592a1 1 0 0 1 .753 1.659l-4.796 5.48a1 1 0 0 1-1.506 0z'/%3E%3C/svg%3E");
            background-repeat: no-repeat;
            background-position: right 16px center;
            padding-right: 44px;
        }

        textarea.form-control { resize: vertical; min-height: 100px; }
        .form-hint { font-size: 0.8rem; color: var(--text-light); margin-top: 6px; }

        /* ===== MODAL ===== */
        .modal-overlay {
            position: fixed;
            top: 0; left: 0; right: 0; bottom: 0;
            background: rgba(0,0,0,0.4);
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
            display: flex;
            align-items: center;
            justify-content: center;
            z-index: 2000;
            opacity: 0;
            visibility: hidden;
            transition: var(--transition);
        }

        .modal-overlay.active { opacity: 1; visibility: visible; }

        .modal {
            background: var(--card-bg);
            border-radius: var(--radius-lg);
            width: 90%;
            max-width: 700px;
            max-height: 90vh;
            overflow-y: auto;
            transform: translateY(30px) scale(0.95);
            transition: var(--transition);
            box-shadow: var(--shadow-xl);
            border: 1px solid rgba(255,255,255,0.5);
        }

        .modal-overlay.active .modal { transform: translateY(0) scale(1); }

        .modal-header {
            padding: 28px 32px;
            border-bottom: 1px solid var(--border);
            display: flex;
            justify-content: space-between;
            align-items: center;
            background: linear-gradient(180deg, rgba(255,255,255,1) 0%, rgba(250,250,252,1) 100%);
        }

        .modal-title {
            font-size: 1.3rem;
            font-weight: 700;
            color: var(--text);
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .modal-title i { color: var(--primary-light); font-size: 1.1rem; }

        .modal-close {
            width: 40px; height: 40px;
            border-radius: 12px;
            border: none;
            background: var(--bg);
            cursor: pointer;
            font-size: 1.2rem;
            color: var(--text-light);
            transition: var(--transition);
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .modal-close:hover { background: var(--danger); color: white; transform: rotate(90deg); }

        .modal-body { padding: 32px; }
        .modal-footer {
            padding: 24px 32px;
            border-top: 1px solid var(--border);
            display: flex;
            justify-content: flex-end;
            gap: 12px;
            background: linear-gradient(0deg, rgba(250,250,252,1) 0%, rgba(255,255,255,1) 100%);
        }

        /* ===== TABS ===== */
        .tabs {
            display: flex;
            gap: 6px;
            background: var(--bg);
            padding: 6px;
            border-radius: 16px;
            margin-bottom: 28px;
            width: fit-content;
        }

        .tab {
            padding: 12px 24px;
            border: none;
            background: transparent;
            cursor: pointer;
            font-size: 0.85rem;
            font-weight: 600;
            border-radius: 12px;
            transition: var(--transition);
            color: var(--text-light);
            font-family: 'Inter', sans-serif;
            position: relative;
        }

        .tab.active {
            background: var(--card-bg);
            color: var(--primary);
            box-shadow: 0 4px 12px rgba(0,0,0,0.08);
        }
        .tab:hover:not(.active) { color: var(--text); background: rgba(255,255,255,0.5); }

        /* ===== ALERTS ===== */
        .alert-item {
            display: flex;
            align-items: center;
            padding: 18px 20px;
            border-radius: 16px;
            margin-bottom: 12px;
            gap: 16px;
            transition: var(--transition);
            cursor: pointer;
            border: 1px solid transparent;
        }
        .alert-item:hover { transform: translateX(4px); box-shadow: var(--shadow); }

        .alert-item.expiry {
            background: linear-gradient(135deg, rgba(220,53,69,0.06) 0%, rgba(255,107,122,0.04) 100%);
            border-left: 4px solid var(--danger);
            border-color: rgba(220,53,69,0.1);
        }
        .alert-item.low-stock {
            background: linear-gradient(135deg, rgba(243,156,18,0.06) 0%, rgba(245,176,65,0.04) 100%);
            border-left: 4px solid var(--warning);
            border-color: rgba(243,156,18,0.1);
        }

        .alert-icon {
            width: 48px; height: 48px;
            border-radius: 14px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            flex-shrink: 0;
            transition: var(--transition);
        }
        .alert-item:hover .alert-icon { transform: scale(1.1); }

        .alert-item.expiry .alert-icon { 
            background: linear-gradient(135deg, rgba(220,53,69,0.12) 0%, rgba(255,107,122,0.08) 100%); 
            color: var(--danger); 
        }
        .alert-item.low-stock .alert-icon { 
            background: linear-gradient(135deg, rgba(243,156,18,0.12) 0%, rgba(245,176,65,0.08) 100%); 
            color: var(--warning); 
        }

        .alert-content { flex: 1; }
        .alert-title { font-weight: 700; font-size: 0.95rem; margin-bottom: 4px; color: var(--text); }
        .alert-desc { font-size: 0.85rem; color: var(--text-light); line-height: 1.5; }
        .alert-date {
            font-size: 0.8rem;
            color: var(--danger);
            font-weight: 700;
            padding: 6px 12px;
            border-radius: 10px;
            background: rgba(220,53,69,0.08);
            white-space: nowrap;
        }
        .alert-item.low-stock .alert-date { color: var(--warning); background: rgba(243,156,18,0.08); }

        /* ===== PROFIT/LOSS CARDS ===== */
        .pl-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
            margin-bottom: 28px;
        }

        .pl-card {
            background: var(--card-bg);
            border-radius: var(--radius-lg);
            padding: 32px 24px;
            box-shadow: var(--shadow);
            text-align: center;
            transition: var(--transition);
            border: 1px solid rgba(255,255,255,0.5);
            position: relative;
            overflow: hidden;
        }

        .pl-card::after {
            content: '';
            position: absolute;
            bottom: 0; left: 0; right: 0;
            height: 4px;
            border-radius: 0 0 var(--radius-lg) var(--radius-lg);
        }

        .pl-card.profit::after { background: linear-gradient(90deg, var(--success), var(--success-light)); }
        .pl-card.loss::after { background: linear-gradient(90deg, var(--danger), var(--danger-light)); }
        .pl-card.net::after { background: linear-gradient(90deg, var(--primary), var(--primary-light)); }

        .pl-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }

        .pl-card .pl-label {
            font-size: 0.8rem;
            color: var(--text-light);
            text-transform: uppercase;
            letter-spacing: 1.5px;
            font-weight: 700;
            margin-bottom: 16px;
        }
        .pl-card .pl-value { font-size: 2.4rem; font-weight: 800; letter-spacing: -1px; }
        .pl-card.profit .pl-value { color: var(--success); }
        .pl-card.loss .pl-value { color: var(--danger); }
        .pl-card.net .pl-value { color: var(--primary); }

        .pl-card .pl-icon {
            width: 56px; height: 56px;
            border-radius: 18px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 16px;
            font-size: 1.5rem;
            transition: var(--transition);
        }
        .pl-card:hover .pl-icon { transform: scale(1.1) rotate(5deg); }

        .pl-card.profit .pl-icon { 
            background: linear-gradient(135deg, rgba(39,174,96,0.1) 0%, rgba(46,204,113,0.15) 100%); 
            color: var(--success); 
        }
        .pl-card.loss .pl-icon { 
            background: linear-gradient(135deg, rgba(220,53,69,0.1) 0%, rgba(255,107,122,0.15) 100%); 
            color: var(--danger); 
        }
        .pl-card.net .pl-icon { 
            background: linear-gradient(135deg, rgba(26,95,42,0.1) 0%, rgba(45,138,62,0.15) 100%); 
            color: var(--primary); 
        }

        /* ===== CHARTS ===== */
        .chart-container { height: 320px; position: relative; padding: 16px; }
        .chart-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
            margin-bottom: 28px;
        }

        /* ===== SECTIONS ===== */
        .section {
            display: none;
            animation: fadeIn 0.4s ease;
        }
        .section.active { display: block; }

        @keyframes fadeIn {
            from { opacity: 0; transform: translateY(20px); }
            to { opacity: 1; transform: translateY(0); }
        }

        /* ===== ACTION BUTTONS ===== */
        .action-btns { display: flex; gap: 8px; }
        .action-btn {
            width: 36px; height: 36px;
            border-radius: 10px;
            border: none;
            cursor: pointer;
            font-size: 0.9rem;
            transition: var(--transition);
            display: flex;
            align-items: center;
            justify-content: center;
            position: relative;
            overflow: hidden;
        }
        .action-btn::after {
            content: '';
            position: absolute;
            inset: 0;
            background: rgba(255,255,255,0.2);
            opacity: 0;
            transition: var(--transition);
        }
        .action-btn:hover::after { opacity: 1; }
        .action-btn.edit {
            background: linear-gradient(135deg, rgba(52,152,219,0.1) 0%, rgba(93,173,226,0.15) 100%);
            color: var(--info);
            border: 1px solid rgba(52,152,219,0.2);
        }
        .action-btn.delete {
            background: linear-gradient(135deg, rgba(220,53,69,0.1) 0%, rgba(255,107,122,0.15) 100%);
            color: var(--danger);
            border: 1px solid rgba(220,53,69,0.2);
        }
        .action-btn:hover { transform: scale(1.15) rotate(5deg); box-shadow: 0 4px 12px rgba(0,0,0,0.1); }

        /* ===== TOAST ===== */
        .toast-container {
            position: fixed;
            top: 24px; right: 24px;
            z-index: 3000;
            display: flex;
            flex-direction: column;
            gap: 12px;
        }

        .toast {
            background: var(--card-bg);
            border-radius: 16px;
            padding: 18px 24px;
            box-shadow: var(--shadow-xl);
            display: flex;
            align-items: center;
            gap: 14px;
            animation: toastSlideIn 0.4s cubic-bezier(0.4, 0, 0.2, 1);
            min-width: 320px;
            max-width: 400px;
            border: 1px solid rgba(255,255,255,0.5);
            position: relative;
            overflow: hidden;
        }

        .toast::before {
            content: '';
            position: absolute;
            left: 0; top: 0; bottom: 0;
            width: 4px;
            border-radius: 16px 0 0 16px;
        }

        .toast.success::before { background: linear-gradient(180deg, var(--success), var(--success-light)); }
        .toast.error::before { background: linear-gradient(180deg, var(--danger), var(--danger-light)); }
        .toast.warning::before { background: linear-gradient(180deg, var(--warning), var(--warning-light)); }

        @keyframes toastSlideIn {
            from { transform: translateX(120%); opacity: 0; }
            to { transform: translateX(0); opacity: 1; }
        }

        @keyframes toastSlideOut {
            from { transform: translateX(0); opacity: 1; }
            to { transform: translateX(120%); opacity: 0; }
        }

        .toast.removing { animation: toastSlideOut 0.3s ease forwards; }

        .toast-icon {
            width: 44px; height: 44px;
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            flex-shrink: 0;
        }

        .toast.success .toast-icon { 
            background: linear-gradient(135deg, rgba(39,174,96,0.1) 0%, rgba(46,204,113,0.15) 100%); 
            color: var(--success); 
        }
        .toast.error .toast-icon { 
            background: linear-gradient(135deg, rgba(220,53,69,0.1) 0%, rgba(255,107,122,0.15) 100%); 
            color: var(--danger); 
        }
        .toast.warning .toast-icon { 
            background: linear-gradient(135deg, rgba(243,156,18,0.1) 0%, rgba(245,176,65,0.15) 100%); 
            color: var(--warning); 
        }

        .toast-content { flex: 1; }
        .toast-title { font-weight: 700; font-size: 0.95rem; color: var(--text); margin-bottom: 2px; }
        .toast-desc { font-size: 0.8rem; color: var(--text-light); }

        /* ===== DATE DISPLAY ===== */
        .date-display { font-size: 0.85rem; color: var(--text-light); font-weight: 500; }

        /* ===== EMPTY STATE ===== */
        .empty-state {
            text-align: center;
            padding: 60px 20px;
            color: var(--text-light);
        }
        .empty-state i { font-size: 3.5rem; margin-bottom: 20px; opacity: 0.3; }
        .empty-state h3 { font-size: 1.2rem; margin-bottom: 8px; color: var(--text); font-weight: 700; }
        .empty-state p { font-size: 0.9rem; max-width: 300px; margin: 0 auto; line-height: 1.6; }

        /* ===== FILTER BAR ===== */
        .filter-bar {
            display: flex;
            gap: 12px;
            margin-bottom: 24px;
            flex-wrap: wrap;
            align-items: center;
        }
        .filter-bar select, .filter-bar input {
            padding: 12px 18px;
            border: 2px solid var(--border);
            border-radius: 12px;
            font-size: 0.85rem;
            background: var(--card-bg);
            font-family: 'Inter', sans-serif;
            transition: var(--transition);
            color: var(--text);
        }
        .filter-bar select:focus, .filter-bar input:focus {
            outline: none;
            border-color: var(--primary-light);
            box-shadow: 0 0 0 3px rgba(45, 138, 62, 0.1);
        }

        /* ===== REPORT SUMMARY ===== */
        .report-summary {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
            margin-bottom: 28px;
        }
        .report-item {
            background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
            padding: 20px;
            border-radius: 16px;
            border: 1px solid var(--border);
            transition: var(--transition);
        }
        .report-item:hover { transform: translateY(-2px); box-shadow: var(--shadow); }
        .report-label {
            font-size: 0.75rem;
            color: var(--text-light);
            text-transform: uppercase;
            font-weight: 700;
            letter-spacing: 1px;
            margin-bottom: 8px;
        }
        .report-value { font-size: 1.5rem; font-weight: 800; color: var(--text); }

        /* ===== SCROLLBAR ===== */
        ::-webkit-scrollbar { width: 8px; }
        ::-webkit-scrollbar-track { background: var(--bg); }
        ::-webkit-scrollbar-thumb { background: #cbd5e0; border-radius: 4px; }
        ::-webkit-scrollbar-thumb:hover { background: #a0aec0; }

        /* ===== AUTOCOMPLETE ===== */
        .autocomplete-dropdown {
            position: absolute;
            top: 100%;
            left: 0;
            right: 0;
            background: var(--card-bg);
            border: 2px solid var(--border);
            border-top: none;
            border-radius: 0 0 14px 14px;
            max-height: 240px;
            overflow-y: auto;
            z-index: 100;
            box-shadow: var(--shadow-lg);
            display: none;
            margin-top: -2px;
        }

        .autocomplete-dropdown.active { display: block; }

        .autocomplete-item {
            padding: 12px 16px;
            cursor: pointer;
            border-bottom: 1px solid var(--border);
            transition: var(--transition);
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .autocomplete-item:last-child { border-bottom: none; }
        .autocomplete-item:hover { background: rgba(26, 95, 42, 0.04); }
        .autocomplete-item.selected { background: rgba(26, 95, 42, 0.08); }

        .autocomplete-item .ac-name { font-weight: 600; font-size: 0.9rem; color: var(--text); }
        .autocomplete-item .ac-meta { font-size: 0.75rem; color: var(--text-light); margin-top: 2px; }
        .autocomplete-item .ac-stock { font-size: 0.8rem; font-weight: 700; color: var(--primary); white-space: nowrap; }
        .autocomplete-item .ac-stock.low { color: var(--warning); }
        .autocomplete-item .ac-stock.out { color: var(--danger); }
        .autocomplete-no-results { padding: 16px; text-align: center; color: var(--text-light); font-size: 0.85rem; }

        /* ===== RESPONSIVE ===== */
        
        /* ===== EXPIRY RETURN CHECKBOX ===== */
        .return-checkbox-label {
            display: flex;
            align-items: center;
            gap: 8px;
            cursor: pointer;
            padding: 8px 12px;
            border-radius: 10px;
            background: linear-gradient(135deg, rgba(220,53,69,0.08) 0%, rgba(255,107,122,0.04) 100%);
            border: 1px solid rgba(220,53,69,0.15);
            transition: all 0.2s ease;
            font-size: 0.8rem;
            font-weight: 600;
            color: var(--danger);
            white-space: nowrap;
        }
        .return-checkbox-label:hover {
            background: linear-gradient(135deg, rgba(220,53,69,0.12) 0%, rgba(255,107,122,0.08) 100%);
            transform: scale(1.02);
        }
        .return-checkbox-label.checked {
            background: linear-gradient(135deg, rgba(39,174,96,0.12) 0%, rgba(46,204,113,0.08) 100%) !important;
            border-color: rgba(39,174,96,0.3) !important;
            color: var(--success) !important;
        }
        .return-checkbox {
            width: 18px;
            height: 18px;
            cursor: pointer;
            accent-color: var(--danger);
        }
        .return-checkbox:checked {
            accent-color: var(--success);
        }

        /* ===== EXPIRY RETURNS SECTION ===== */
        .expiry-return-card {
            border-left: 4px solid var(--danger) !important;
        }
        .expiry-return-card .card-header {
            background: linear-gradient(180deg, rgba(255,255,255,1) 0%, rgba(255,245,245,1) 100%) !important;
        }


        
        /* ===== INVENTORY RETURN BUTTON ===== */
        .action-btn.return-btn {
            background: linear-gradient(135deg, rgba(220,53,69,0.1) 0%, rgba(255,107,122,0.15) 100%) !important;
            color: var(--danger) !important;
            border: 1px solid rgba(220,53,69,0.2) !important;
        }
        .action-btn.return-btn:hover {
            background: linear-gradient(135deg, rgba(220,53,69,0.2) 0%, rgba(255,107,122,0.25) 100%) !important;
            transform: scale(1.15) rotate(5deg);
            box-shadow: 0 4px 12px rgba(220,53,69,0.2);
        }

        /* ===== REASON BADGES IN RETURNS TABLE ===== */
        .reason-badge-expiry { background: linear-gradient(135deg, rgba(220,53,69,0.12) 0%, rgba(255,107,122,0.08) 100%); color: var(--danger); border: 1px solid rgba(220,53,69,0.2); }
        .reason-badge-near { background: linear-gradient(135deg, rgba(243,156,18,0.12) 0%, rgba(245,176,65,0.08) 100%); color: var(--warning); border: 1px solid rgba(243,156,18,0.2); }
        .reason-badge-unsold { background: linear-gradient(135deg, rgba(52,152,219,0.12) 0%, rgba(93,173,226,0.08) 100%); color: var(--info); border: 1px solid rgba(52,152,219,0.2); }
        .reason-badge-damaged { background: linear-gradient(135deg, rgba(220,53,69,0.12) 0%, rgba(255,107,122,0.08) 100%); color: var(--danger); border: 1px solid rgba(220,53,69,0.2); }
        .reason-badge-excess { background: linear-gradient(135deg, rgba(39,174,96,0.12) 0%, rgba(46,204,113,0.08) 100%); color: var(--success); border: 1px solid rgba(39,174,96,0.2); }
        .reason-badge-wrong { background: linear-gradient(135deg, rgba(155,89,182,0.12) 0%, rgba(142,68,173,0.08) 100%); color: #9b59b6; border: 1px solid rgba(155,89,182,0.2); }
        .reason-badge-other { background: linear-gradient(135deg, rgba(149,165,166,0.12) 0%, rgba(127,140,141,0.08) 100%); color: #7f8c8d; border: 1px solid rgba(149,165,166,0.2); }


        @media (max-width: 1200px) {
            .stats-grid { grid-template-columns: repeat(2, 1fr); }
            .pl-grid { grid-template-columns: 1fr; }
            .chart-grid { grid-template-columns: 1fr; }
        }

        @media (max-width: 768px) {
            .sidebar { width: 200px; }
            .main-content { margin-left: 200px; }
            .stats-grid { grid-template-columns: 1fr; }
            .form-grid { grid-template-columns: 1fr; }
            .search-box input { width: 200px; }
            .search-box input:focus { width: 220px; }
        }

        /* ===== PRINT ===== */
        .print-header, .print-footer, .print-logo { display: none; }

        @media print {
            @page { margin: 12mm; size: A4; }
            body {
                background: white !important;
                -webkit-print-color-adjust: exact;
                print-color-adjust: exact;
                font-size: 10pt !important;
            }
            .sidebar, .topbar, .quick-actions, .toast-container,
            .modal-overlay, .nav-menu, .sidebar-footer, .topbar-actions,
            .search-box, .filter-bar, .tabs, .btn, .action-btns,
            .card-header, .section-divider, .chart-container,
            .chart-grid, canvas, .dashboard-grid, .stats-grid,
            .pl-grid, .quick-action-card, .empty-state { display: none !important; }
            .main-content { margin-left: 0 !important; padding: 0 !important; }
            .content { padding: 0 !important; max-width: 100% !important; }
            .section { display: none !important; }
            .section.active { display: block !important; }
            #reports .report-section { display: none !important; }
            #reports .report-section.active { display: block !important; }
            .print-header {
                display: block !important;
                text-align: center;
                margin-bottom: 20px;
                padding-bottom: 12px;
                border-bottom: 3px double #1a1a2e;
                page-break-inside: avoid !important;
            }
            .print-header h2 {
                font-family: 'Playfair Display', serif;
                font-size: 22pt;
                margin: 0 0 5px 0;
                color: #1a5f2a;
            }
            .print-header .print-subtitle {
                font-size: 10pt;
                color: #4a5568;
                letter-spacing: 2px;
                text-transform: uppercase;
                margin-bottom: 10px;
            }
            .print-meta {
                display: flex;
                justify-content: space-between;
                font-size: 10pt;
                margin-top: 8px;
                color: #333;
            }
            .card { box-shadow: none !important; border: 1px solid #ddd !important; margin-bottom: 15px !important; page-break-inside: avoid !important; }
            .card-body { padding: 10px !important; }
            .table-responsive { border: none !important; overflow: visible !important; }
            table { width: 100% !important; border-collapse: collapse !important; margin-top: 8px; }
            thead { display: table-header-group !important; }
            th {
                background: #f8f9fa !important;
                border-top: 1px solid #333 !important;
                border-bottom: 2px solid #333 !important;
                font-size: 9pt !important;
                padding: 8px 6px !important;
                color: #1a1a2e !important;
                text-transform: uppercase;
                letter-spacing: 0.5px;
            }
            td {
                border-bottom: 1px solid #ddd !important;
                font-size: 9pt !important;
                padding: 6px !important;
                color: #333 !important;
            }
            tr { page-break-inside: avoid !important; }
            tr:hover td { background: none !important; }
            tbody { display: table-row-group !important; }
            .report-summary {
                grid-template-columns: repeat(4, 1fr) !important;
                gap: 10px !important;
                margin-bottom: 20px !important;
            }
            .report-item {
                border: 1px solid #333 !important;
                padding: 10px !important;
                background: none !important;
                border-radius: 0 !important;
                text-align: center;
                page-break-inside: avoid !important;
            }
            .report-label { font-size: 8pt !important; color: #666 !important; margin-bottom: 4px !important; }
            .report-value { font-size: 12pt !important; color: #1a1a2e !important; }
            .badge {
                border: 1px solid #333 !important;
                background: none !important;
                padding: 2px 5px !important;
                font-size: 8pt !important;
            }
            .badge-success { color: #27ae60 !important; border-color: #27ae60 !important; }
            .badge-warning { color: #f39c12 !important; border-color: #f39c12 !important; }
            .badge-danger { color: #dc3545 !important; border-color: #dc3545 !important; }
            .badge-info { color: #3498db !important; border-color: #3498db !important; }
            .category-pill {
                border: 1px solid #1a5f2a !important;
                background: none !important;
                color: #1a5f2a !important;
                padding: 2px 6px !important;
                font-size: 8pt !important;
            }
            .print-logo { display: block !important; margin-bottom: 10px; }
            .print-logo img { width: 48px; height: 48px; object-fit: contain; filter: grayscale(100%) contrast(1.2); }
            .print-footer { display: block !important; margin-top: 30px; page-break-inside: avoid !important; }
            .print-footer-line { border-top: 1px solid #333; margin-bottom: 25px; }
            .print-signatures { display: flex; justify-content: space-between; gap: 30px; margin-bottom: 25px; }
            .signature-block { flex: 1; text-align: center; }
            .signature-line { border-bottom: 1px solid #333; height: 35px; margin-bottom: 5px; }
            .signature-label { font-size: 9pt; font-weight: 700; color: #1a1a2e; text-transform: uppercase; letter-spacing: 1px; }
            .signature-name { font-size: 8pt; color: #666; margin-top: 2px; }
            .print-footer-note { text-align: center; font-size: 8pt; color: #888; border-top: 1px dashed #ccc; padding-top: 10px; margin-top: 8px; }
            .print-footer-note p { margin: 2px 0; }
            .report-summary, .table-responsive { page-break-inside: avoid !important; }
            .period-filter { display: none !important; }
            #dashboardPeriodTabs { display: none !important; }
        }

        /* ===== LOADING SPINNER ===== */
        .spinner {
            width: 40px; height: 40px;
            border: 3px solid var(--border);
            border-top-color: var(--primary);
            border-radius: 50%;
            animation: spin 1s linear infinite;
        }
        @keyframes spin { to { transform: rotate(360deg); } }

        /* ===== PROGRESS BAR ===== */
        .progress-bar {
            height: 6px;
            background: var(--border);
            border-radius: 3px;
            overflow: hidden;
            margin-top: 8px;
        }
        .progress-fill {
            height: 100%;
            border-radius: 3px;
            transition: width 0.6s cubic-bezier(0.4, 0, 0.2, 1);
        }

        /* ===== TOOLTIP ===== */
        .tooltip { position: relative; }
        .tooltip::after {
            content: attr(data-tooltip);
            position: absolute;
            bottom: 100%;
            left: 50%;
            transform: translateX(-50%) translateY(-8px);
            padding: 8px 12px;
            background: var(--text);
            color: white;
            font-size: 0.75rem;
            border-radius: 8px;
            white-space: nowrap;
            opacity: 0;
            visibility: hidden;
            transition: var(--transition);
            pointer-events: none;
            font-weight: 500;
        }
        .tooltip:hover::after { opacity: 1; visibility: visible; transform: translateX(-50%) translateY(-4px); }

        /* ===== DASHBOARD LAYOUT ===== */
        .dashboard-grid {
            display: grid;
            grid-template-columns: 2fr 1fr;
            gap: 28px;
            margin-bottom: 28px;
        }

        .dashboard-grid-3 {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 28px;
            margin-bottom: 28px;
        }

        /* ===== QUICK ACTIONS ===== */
        .quick-actions {
            display: flex;
            gap: 12px;
            margin-bottom: 28px;
        }

        .quick-action-card {
            flex: 1;
            background: var(--card-bg);
            border-radius: var(--radius-lg);
            padding: 20px;
            display: flex;
            align-items: center;
            gap: 16px;
            cursor: pointer;
            transition: var(--transition);
            border: 2px solid transparent;
            box-shadow: var(--shadow);
        }
        .quick-action-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-lg);
            border-color: var(--primary-light);
        }
        .quick-action-icon {
            width: 48px; height: 48px;
            border-radius: 14px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            transition: var(--transition);
        }
        .quick-action-card:hover .quick-action-icon { transform: scale(1.1); }
        .quick-action-text { font-weight: 600; font-size: 0.95rem; color: var(--text); }
        .quick-action-desc { font-size: 0.8rem; color: var(--text-light); margin-top: 2px; }

        /* ===== STOCK INDICATOR ===== */
        .stock-indicator { display: flex; align-items: center; gap: 8px; }
        .stock-bar {
            width: 60px;
            height: 6px;
            background: var(--border);
            border-radius: 3px;
            overflow: hidden;
        }
        .stock-fill {
            height: 100%;
            border-radius: 3px;
            transition: width 0.6s ease;
        }
        .stock-fill.high { background: linear-gradient(90deg, var(--success), var(--success-light)); }
        .stock-fill.medium { background: linear-gradient(90deg, var(--warning), var(--warning-light)); }
        .stock-fill.low { background: linear-gradient(90deg, var(--danger), var(--danger-light)); }

        /* ===== CATEGORY PILL ===== */
        .category-pill {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 6px 14px;
            border-radius: 20px;
            font-size: 0.8rem;
            font-weight: 600;
            background: linear-gradient(135deg, rgba(26,95,42,0.08) 0%, rgba(45,138,62,0.04) 100%);
            color: var(--primary);
            border: 1px solid rgba(26,95,42,0.15);
        }

        /* ===== ANIMATIONS ===== */
        @keyframes slideUp {
            from { opacity: 0; transform: translateY(30px); }
            to { opacity: 1; transform: translateY(0); }
        }
        .animate-slide-up { animation: slideUp 0.5s ease forwards; }

        @keyframes scaleIn {
            from { opacity: 0; transform: scale(0.9); }
            to { opacity: 1; transform: scale(1); }
        }
        .animate-scale-in { animation: scaleIn 0.4s ease forwards; }

        /* ===== SECTION DIVIDER ===== */
        .section-divider {
            height: 1px;
            background: linear-gradient(90deg, transparent, var(--border), transparent);
            margin: 32px 0;
        }

        /* ===== CATEGORY HEADER ROW (Task 6) ===== */
        .category-header-row {
            background: linear-gradient(135deg, rgba(26,95,42,0.04) 0%, rgba(45,138,62,0.02) 100%) !important;
        }
        .category-header-row:hover td { background: transparent !important; }
        .category-header {
            font-weight: 700;
            font-size: 0.85rem;
            color: var(--primary);
            text-transform: uppercase;
            letter-spacing: 1.5px;
            padding: 14px 16px !important;
            border-bottom: 2px solid var(--primary-light) !important;
        }
        .category-count {
            font-size: 0.75rem;
            color: var(--text-light);
            font-weight: 600;
            margin-left: 8px;
        }

        /* ===== BEST SELLER BADGE (Task 10) ===== */
        .best-seller-card {
            background: linear-gradient(135deg, rgba(212,168,67,0.08) 0%, rgba(176,138,46,0.04) 100%);
            border: 2px solid rgba(212,168,67,0.3);
            border-radius: var(--radius-lg);
            padding: 24px;
            margin-bottom: 28px;
            display: none;
        }
        .best-seller-badge {
            display: flex;
            align-items: center;
            gap: 20px;
        }
        .trophy-icon {
            width: 64px; height: 64px;
            border-radius: 20px;
            background: linear-gradient(135deg, var(--accent) 0%, var(--accent-dark) 100%);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.8rem;
            color: white;
            box-shadow: 0 8px 24px rgba(212,168,67,0.4);
            flex-shrink: 0;
        }
        .best-seller-info { flex: 1; }
        .best-seller-label {
            font-size: 0.75rem;
            color: var(--text-light);
            text-transform: uppercase;
            letter-spacing: 2px;
            font-weight: 700;
            margin-bottom: 6px;
        }
        .best-seller-name {
            font-family: 'Playfair Display', serif;
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--primary-dark);
            margin-bottom: 4px;
        }
        .best-seller-stats {
            font-size: 0.85rem;
            color: var(--text-secondary);
            font-weight: 500;
        }

        /* ===== MEDICINE DETAIL MODAL (Task 3) ===== */
        .detail-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 20px;
        }
        .detail-item {
            background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
            padding: 16px 20px;
            border-radius: 14px;
            border: 1px solid var(--border);
        }
        .detail-item.full-width { grid-column: 1 / -1; }
        .detail-label {
            font-size: 0.75rem;
            color: var(--text-light);
            text-transform: uppercase;
            letter-spacing: 1.5px;
            font-weight: 700;
            margin-bottom: 8px;
        }
        .detail-value {
            font-size: 1rem;
            font-weight: 600;
            color: var(--text);
        }

        /* ===== RETURN REASON BADGES ===== */
        .return-reason-expiry { background: linear-gradient(135deg, rgba(220,53,69,0.12) 0%, rgba(255,107,122,0.08) 100%); color: var(--danger); border: 1px solid rgba(220,53,69,0.2); }
        .return-reason-damage { background: linear-gradient(135deg, rgba(243,156,18,0.12) 0%, rgba(245,176,65,0.08) 100%); color: var(--warning); border: 1px solid rgba(243,156,18,0.2); }
        .return-reason-excess { background: linear-gradient(135deg, rgba(52,152,219,0.12) 0%, rgba(93,173,226,0.08) 100%); color: var(--info); border: 1px solid rgba(52,152,219,0.2); }

        .condition-card {
            background: var(--card-bg);
            border-radius: var(--radius-lg);
            padding: 20px;
            box-shadow: var(--shadow);
            transition: var(--transition);
            border: 1px solid rgba(255,255,255,0.5);
            cursor: pointer;
            display: flex;
            align-items: center;
            gap: 16px;
        }
        .condition-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-lg);
            border-color: var(--primary-light);
        }
        .condition-icon {
            width: 48px; height: 48px;
            border-radius: 14px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            background: linear-gradient(135deg, rgba(26,95,42,0.1) 0%, rgba(45,138,62,0.15) 100%);
            color: var(--primary);
            flex-shrink: 0;
        }
        .condition-text { font-weight: 600; font-size: 0.95rem; color: var(--text); }
        .condition-count { font-size: 0.8rem; color: var(--text-light); margin-top: 2px; }
    
        /* ===== LOGIN GATE & SYNC (added) ===== */
        .auth-gate {
            position: fixed; inset: 0; z-index: 5000;
            display: flex; align-items: center; justify-content: center;
            background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 60%, #2d6a35 100%);
        }
        .auth-gate.hidden { display: none; }
        .auth-card {
            background: white; border-radius: var(--radius-lg); padding: 40px 36px;
            width: min(420px, 92vw); text-align: center; box-shadow: var(--shadow-xl);
        }
        .auth-logo { width: 72px; height: 72px; object-fit: contain; margin-bottom: 12px; }
        .auth-card h1 { font-family: 'Playfair Display', serif; font-size: 1.6rem; color: var(--primary-dark); }
        .auth-subtitle { color: var(--text-light); font-size: 0.85rem; margin: 6px 0 24px; letter-spacing: 1px; }
        .auth-error {
            background: rgba(220,53,69,0.08); border: 1px solid rgba(220,53,69,0.25); color: var(--danger);
            border-radius: var(--radius-sm); padding: 10px 14px; font-size: 0.85rem; margin-bottom: 16px;
        }
        .auth-footer { margin-top: 22px; font-size: 0.72rem; color: var(--text-light); letter-spacing: 0.5px; }
        .sync-status {
            display: inline-flex; align-items: center; gap: 6px;
            font-size: 0.75rem; font-weight: 600; color: var(--text-light);
            padding: 8px 12px; border-radius: 999px; background: var(--bg); border: 1px solid var(--border);
        }
        .sync-status i { font-size: 0.5rem; color: #a0aec0; }
        .sync-status.online i { color: var(--success); }
        .sync-status.saving i { color: var(--warning); }
        .sync-status.error i { color: var(--danger); }