:root {
            --bg-body: #1e293b; /* Dark Slate Background */
            --bg-card: #ffffff; /* White Cards */
            --border-color: #475569; /* Thick Dark-Slate Border */
            
            --text-primary: #0f172a;
            --text-secondary: #334155;
            --text-muted: #64748b;
            
            --primary: #2563eb;
            --primary-light: #eff6ff;
            --accent: #4f46e5;
            
            --success: #059669;
            --success-light: #ecfdf5;
            --warning: #d97706;
            --warning-light: #fffbeb;
            --danger: #dc2626;
            --danger-light: #fef2f2;
            
            --font-main: 'Prompt', sans-serif;
            --font-nums: 'Outfit', sans-serif;
            
            --radius-lg: 16px;
            --radius-md: 10px;
            --radius-sm: 6px;
            
            --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.1);
            --shadow-md: 0 6px 12px rgba(0, 0, 0, 0.15);
            --shadow-lg: 0 15px 30px rgba(0, 0, 0, 0.2);
        }

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

        body {
            background-color: var(--bg-body);
            color: var(--text-primary);
            font-family: var(--font-main);
            padding: 1.5rem;
            line-height: 1.5;
        }

        .dashboard-container {
            max-width: 1440px;
            margin: 0 auto;
            display: flex;
            flex-direction: column;
            gap: 1.25rem;
        }

        /* 3D Navigation Bar */
        .nav-bar {
            background-color: var(--bg-card);
            border: 3px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 1rem 1.5rem;
            box-shadow: var(--shadow-md);
            display: flex;
            flex-wrap: wrap;
            gap: 0.75rem;
            align-items: center;
        }

        .nav-link {
            text-decoration: none;
            color: var(--text-secondary);
            font-weight: 700;
            font-size: 0.85rem;
            padding: 0.6rem 1.2rem;
            border-radius: 10px;
            border: 2px solid #0f172a;
            border-bottom: 5px solid #0f172a;
            background: linear-gradient(135deg, #f8fafc, #e2e8f0);
            color: #0f172a;
            box-shadow: 0 3px 5px rgba(0, 0, 0, 0.1);
            transition: all 0.1s ease;
            text-shadow: 0 1px 1px rgba(255, 255, 255, 0.8);
            display: inline-block;
        }

        .nav-link:hover {
            transform: translateY(-2px);
            border-bottom-width: 7px;
            background: linear-gradient(135deg, #ffffff, #cbd5e1);
            box-shadow: 0 5px 10px rgba(0, 0, 0, 0.15);
            color: var(--primary);
        }

        .nav-link:active {
            transform: translateY(2px);
            border-bottom-width: 2px;
            box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
        }

        .nav-link.active {
            background: linear-gradient(135deg, #3b82f6, #6366f1);
            color: #ffffff;
            border-color: #0f172a;
            border-bottom-color: #0f172a;
            text-shadow: 0 1px 2px rgba(0, 0, 0, 0.3);
            box-shadow: 0 4px 6px rgba(59, 130, 246, 0.2);
        }

        .nav-link.active:hover {
            background: linear-gradient(135deg, #4f46e5, #3b82f6);
            color: #ffffff;
        }

        /* Top Header Grid Layout */
        .top-row {
            display: grid;
            grid-template-columns: 2fr 1fr;
            gap: 1.25rem;
            align-items: stretch;
        }

        .header-card {
            background-color: var(--bg-card);
            border: 3px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 1.5rem 2rem;
            box-shadow: var(--shadow-md);
            display: flex;
            flex-direction: column;
            justify-content: center;
            position: relative;
        }

        .header-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: linear-gradient(90deg, var(--primary), var(--accent));
            border-radius: var(--radius-lg) var(--radius-lg) 0 0;
        }

        .header-card h1 {
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--text-primary);
            letter-spacing: -0.02em;
        }

        .header-card p {
            color: var(--text-secondary);
            font-size: 0.85rem;
            margin-top: 0.25rem;
        }

        /* Real-time Clock Card */
        .clock-card {
            background-color: var(--bg-card);
            border: 3px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 1.25rem;
            box-shadow: var(--shadow-md);
            display: flex;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            text-align: center;
            border-left: 8px solid var(--accent);
        }

        .clock-time {
            font-family: var(--font-nums);
            font-size: 1.65rem;
            font-weight: 700;
            color: var(--accent);
            letter-spacing: 0.05em;
        }

        .clock-date {
            font-size: 0.85rem;
            font-weight: 600;
            color: var(--text-secondary);
            margin-top: 0.15rem;
        }

        /* Controls Block */
        .controls-card {
            background-color: var(--bg-card);
            border: 3px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 1rem 1.5rem;
            box-shadow: var(--shadow-sm);
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 1rem;
        }

        .edit-toggle-group {
            display: flex;
            align-items: center;
            gap: 0.75rem;
        }

        /* Toggle switch */
        .switch {
            position: relative;
            display: inline-block;
            width: 50px;
            height: 26px;
        }

        .switch input {
            opacity: 0;
            width: 0;
            height: 0;
        }

        .slider {
            position: absolute;
            cursor: pointer;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background-color: #cbd5e1;
            transition: .4s;
            border-radius: 34px;
        }

        .slider:before {
            position: absolute;
            content: "";
            height: 18px;
            width: 18px;
            left: 4px;
            bottom: 4px;
            background-color: white;
            transition: .4s;
            border-radius: 50%;
        }

        input:checked + .slider {
            background-color: var(--primary);
        }

        input:focus + .slider {
            box-shadow: 0 0 1px var(--primary);
        }

        input:checked + .slider:before {
            transform: translateX(24px);
        }

        .toggle-label {
            font-size: 0.9rem;
            font-weight: 600;
            color: var(--text-primary);
        }

        .btn-group {
            display: flex;
            gap: 0.75rem;
        }

        .btn {
            font-family: var(--font-main);
            font-size: 0.85rem;
            font-weight: 600;
            padding: 0.5rem 1.25rem;
            border-radius: var(--radius-sm);
            border: none;
            cursor: pointer;
            transition: all 0.2s ease;
        }

        .btn-primary {
            background-color: var(--primary);
            color: #ffffff;
        }

        .btn-primary:hover {
            background-color: #2563eb;
        }

        .btn-secondary {
            background-color: #f1f5f9;
            color: var(--text-secondary);
            border: 2px solid var(--border-color);
        }

        .btn-secondary:hover {
            background-color: #e2e8f0;
            color: var(--text-primary);
        }

        /* KPI Summary Grid */
        .kpi-grid {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 1rem;
        }

        .kpi-card {
            background-color: var(--bg-card);
            border: 3px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 1.15rem;
            box-shadow: var(--shadow-sm);
            display: flex;
            flex-direction: column;
            gap: 0.25rem;
            border-top: 4px solid var(--border-color);
        }

        .kpi-card.oee { border-top-color: var(--primary); }
        .kpi-card.avail { border-top-color: var(--success); }
        .kpi-card.perf { border-top-color: var(--warning); }
        .kpi-card.qual { border-top-color: var(--danger); }
        .kpi-card.volume { border-top-color: var(--accent); }

        .kpi-title {
            font-size: 0.75rem;
            font-weight: 600;
            color: var(--text-muted);
            text-transform: uppercase;
        }

        .kpi-value {
            font-family: var(--font-nums);
            font-size: 1.8rem;
            font-weight: 700;
        }

        .kpi-desc {
            font-size: 0.75rem;
            color: var(--text-secondary);
        }

        /* Process Layout Split */
        .process-split-row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 1.25rem;
        }

        .process-column-card {
            background-color: var(--bg-card);
            border: 3px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 1.5rem;
            box-shadow: var(--shadow-md);
            display: flex;
            flex-direction: column;
            gap: 1.25rem;
        }

        .process-col-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            border-bottom: 2px solid var(--primary-light);
            padding-bottom: 0.75rem;
        }

        .process-col-header h2 {
            font-size: 1.1rem;
            font-weight: 700;
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }

        .process-badge {
            background-color: var(--primary-light);
            color: var(--primary);
            font-size: 0.75rem;
            font-weight: 600;
            padding: 0.2rem 0.6rem;
            border-radius: 12px;
        }

        /* Card grid inside column */
        .stations-subgrid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
            gap: 1rem;
        }

        .stations-subgrid.single-col {
            grid-template-columns: 1fr;
        }

        .station-item-card {
            background-color: #f8fafc;
            border: 2px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 1rem;
            display: flex;
            flex-direction: column;
            gap: 0.75rem;
            transition: all 0.2s ease;
        }

        .station-item-card:hover {
            box-shadow: var(--shadow-md);
            border-color: #94a3b8;
        }

        .station-item-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .station-name {
            font-weight: 700;
            font-size: 0.9rem;
            color: var(--text-primary);
        }

        .station-status-indicator {
            width: 8px;
            height: 8px;
            border-radius: 50%;
        }

        .station-status-indicator.world-class { background-color: var(--success); }
        .station-status-indicator.acceptable { background-color: var(--warning); }
        .station-status-indicator.poor { background-color: var(--danger); }

        .station-grid-numbers {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 0.5rem;
            background-color: #ffffff;
            border: 1px solid #e2e8f0;
            border-radius: var(--radius-sm);
            padding: 0.5rem;
        }

        .number-box {
            display: flex;
            flex-direction: column;
            align-items: center;
            text-align: center;
        }

        .number-box .lbl {
            font-size: 0.62rem;
            font-weight: 600;
            color: var(--text-muted);
        }

        .number-box .val {
            font-family: var(--font-nums);
            font-weight: 700;
            font-size: 0.95rem;
            color: var(--text-primary);
        }

        .number-box input {
            width: 100%;
            border: 1px solid var(--primary);
            border-radius: 4px;
            text-align: center;
            font-family: var(--font-nums);
            font-weight: 700;
            font-size: 0.85rem;
            padding: 0.1rem;
            display: none; /* hidden until edit mode active */
        }

        .number-box input:focus {
            outline: none;
            background-color: var(--primary-light);
        }

        /* Charts panel */
        .charts-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr;
            gap: 1.25rem;
        }

        .chart-box-card, .chart-card {
            background-color: var(--bg-card);
            border: 3px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 1.25rem;
            box-shadow: var(--shadow-md);
            display: flex;
            flex-direction: column;
            gap: 0.75rem;
        }

        .chart-box-card h3, .chart-card h3, .chart-title-white {
            background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
            color: #ffffff !important;
            padding: 0.65rem 1.1rem;
            border-radius: 8px;
            border: 2px solid #0f172a;
            font-size: 0.95rem;
            font-weight: 700;
            letter-spacing: -0.01em;
            text-shadow: 0 1px 2px rgba(0, 0, 0, 0.4);
            box-shadow: 0 2px 4px rgba(0, 0, 0, 0.15);
            display: flex;
            align-items: center;
            gap: 0.5rem;
            margin-bottom: 0.25rem;
        }

        .chart-wrapper {
            height: 260px;
            position: relative;
        }

        /* Summary table */
        .table-card {
            background-color: var(--bg-card);
            border: 3px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 1.5rem;
            box-shadow: var(--shadow-md);
            display: flex;
            flex-direction: column;
            gap: 1rem;
        }

        .table-card h3 {
            font-size: 1rem;
            font-weight: 700;
        }

        .table-scroller {
            overflow-x: auto;
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
        }

        table {
            width: 100%;
            border-collapse: collapse;
            font-size: 0.8rem;
        }

        th {
            background-color: #f8fafc;
            color: var(--text-primary);
            font-weight: 700;
            padding: 0.6rem 0.85rem;
            border-bottom: 1px solid var(--border-color);
            text-align: left;
        }

        td {
            padding: 0.6rem 0.85rem;
            border-bottom: 1px solid #f1f5f9;
            color: var(--text-secondary);
        }

        tr:hover td {
            background-color: #f8fafc;
        }

        td.num, th.num {
            text-align: right;
            font-family: var(--font-nums);
        }

        .badge {
            font-size: 0.7rem;
            font-weight: 600;
            padding: 0.15rem 0.45rem;
            border-radius: 4px;
        }

        .badge.world-class { background-color: var(--success-light); color: var(--success); }
        .badge.acceptable { background-color: var(--warning-light); color: var(--warning); }
        .badge.poor { background-color: var(--danger-light); color: var(--danger); }

        .notification {
            background-color: var(--primary-light);
            border-left: 4px solid var(--primary);
            padding: 0.75rem 1rem;
            border-radius: var(--radius-sm);
            font-size: 0.8rem;
            color: var(--text-secondary);
            display: flex;
            align-items: center;
            gap: 0.5rem;
        }

        /* 3D Select Dropdown */
        .select-3d-wrapper {
            position: relative;
            display: inline-block;
        }

        .select-3d-wrapper::after {
            content: "▼";
            font-size: 0.65rem;
            color: #ffffff;
            position: absolute;
            right: 0.9rem;
            top: 50%;
            transform: translateY(-50%);
            pointer-events: none;
            text-shadow: 0 1px 1px rgba(0, 0, 0, 0.4);
        }

        .select-3d {
            font-family: var(--font-main);
            font-size: 0.85rem;
            font-weight: 700;
            padding: 0.45rem 2.2rem 0.45rem 1rem;
            border-radius: 8px;
            border: 2px solid #0f172a;
            border-bottom: 5px solid #0f172a;
            background: linear-gradient(135deg, #3b82f6, #1d4ed8);
            color: #ffffff;
            outline: none;
            cursor: pointer;
            appearance: none;
            -webkit-appearance: none;
            -moz-appearance: none;
            box-shadow: 0 3px 5px rgba(0, 0, 0, 0.15), inset 0 1px 0 rgba(255, 255, 255, 0.3);
            transition: all 0.1s ease;
            text-shadow: 0 1px 2px rgba(0, 0, 0, 0.3);
        }

        .select-3d:hover {
            transform: translateY(-1px);
            border-bottom-width: 6px;
            box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2), inset 0 1px 0 rgba(255, 255, 255, 0.4);
        }

        .select-3d:active {
            transform: translateY(2px);
            border-bottom-width: 2px;
            box-shadow: 0 1px 2px rgba(0, 0, 0, 0.15);
        }

        .select-3d option {
            background-color: #ffffff;
            color: #0f172a;
            font-weight: 600;
        }

        .footer {
            text-align: center;
            padding: 1.5rem 0;
            color: #cbd5e1; /* Light Slate Text */
            font-size: 0.75rem;
            border-top: 1px solid rgba(255, 255, 255, 0.1);
        }

        @media (max-width: 1200px) {
            .top-row, .process-split-row, .charts-grid {
                grid-template-columns: 1fr;
            }
            .kpi-grid {
                grid-template-columns: repeat(3, 1fr);
            }
        }

        @media (max-width: 768px) {
            .kpi-grid {
                grid-template-columns: 1fr 1fr;
            }
            .stations-subgrid {
                grid-template-columns: 1fr;
            }
        }

        /* Unified Process Dashboard Additions */
        .process-subnav-bar {
            display: flex;
            flex-wrap: wrap;
            gap: 0.6rem;
            background-color: var(--bg-card);
            border: 3px solid var(--border-color);
            border-radius: var(--radius-lg);
            padding: 0.85rem 1.25rem;
            box-shadow: var(--shadow-sm);
            margin-bottom: 1.25rem;
            align-items: center;
        }

        .proc-nav-label {
            font-size: 0.85rem;
            font-weight: 700;
            color: var(--text-muted);
            text-transform: uppercase;
            letter-spacing: 0.05em;
            margin-right: 0.5rem;
            display: flex;
            align-items: center;
            gap: 0.35rem;
        }

        .proc-pill-btn {
            padding: 0.55rem 1.1rem;
            border-radius: 10px;
            border: 2px solid #0f172a;
            border-bottom: 5px solid #0f172a;
            background: linear-gradient(135deg, #f8fafc, #e2e8f0);
            color: #0f172a;
            font-family: var(--font-main);
            font-size: 0.86rem;
            font-weight: 700;
            cursor: pointer;
            transition: all 0.12s ease;
            box-shadow: 0 3px 5px rgba(0,0,0,0.08);
            display: inline-flex;
            align-items: center;
            gap: 0.4rem;
        }

        .proc-pill-btn:hover {
            transform: translateY(-2px);
            border-bottom-width: 7px;
            background: linear-gradient(135deg, #ffffff, #cbd5e1);
            color: var(--primary);
        }

        .proc-pill-btn:active {
            transform: translateY(2px);
            border-bottom-width: 2px;
        }

        .proc-pill-btn.active {
            background: linear-gradient(135deg, #2563eb, #4f46e5) !important;
            color: #ffffff !important;
            border-color: #0f172a !important;
            border-bottom-color: #0f172a !important;
            text-shadow: 0 1px 2px rgba(0,0,0,0.3);
            box-shadow: 0 4px 8px rgba(37, 99, 235, 0.3) !important;
        }

        .drilldown-btn {
            background: linear-gradient(135deg, #3b82f6, #2563eb);
            color: #ffffff;
            border: 2px solid #0f172a;
            border-bottom: 4px solid #0f172a;
            border-radius: 6px;
            padding: 0.3rem 0.75rem;
            font-size: 0.78rem;
            font-weight: 700;
            cursor: pointer;
            transition: all 0.1s ease;
        }

        .drilldown-btn:hover {
            transform: translateY(-1px);
            border-bottom-width: 5px;
            background: linear-gradient(135deg, #2563eb, #1d4ed8);
        }

        .drilldown-btn:active {
            transform: translateY(2px);
            border-bottom-width: 2px;
        }

        .btn-link-standalone {
            text-decoration: none;
            display: inline-flex;
            align-items: center;
            gap: 0.35rem;
        }