/* --- Design Tokens & CSS Variables --- */
:root {
    --bg-app: #090d16;
    --bg-sidebar: #0f1524;
    --bg-card: rgba(22, 30, 49, 0.65);
    --bg-card-hover: rgba(30, 41, 67, 0.8);
    --bg-input: rgba(13, 20, 35, 0.8);
    
    --border-color: rgba(255, 255, 255, 0.07);
    --border-color-hover: rgba(255, 255, 255, 0.15);
    --border-glow: rgba(99, 102, 241, 0.15);

    --text-primary: #f3f4f6;
    --text-secondary: #9ca3af;
    --text-muted: #6b7280;
    
    /* Neon Accents */
    --color-primary: #6366f1;
    --color-primary-hover: #4f46e5;
    --color-primary-glow: rgba(99, 102, 241, 0.35);
    
    --color-success: #10b981;
    --color-success-glow: rgba(16, 185, 129, 0.3);
    
    --color-info: #06b6d4;
    --color-info-glow: rgba(6, 182, 212, 0.3);
    
    --color-warning: #f59e0b;
    --color-warning-glow: rgba(245, 158, 11, 0.3);
    
    --color-danger: #ef4444;
    --color-danger-glow: rgba(239, 68, 68, 0.3);

    --font-sans: 'Inter', 'Sarabun', system-ui, -apple-system, sans-serif;
    --font-heading: 'Outfit', 'Inter', 'Sarabun', sans-serif;
    
    --sidebar-width: 280px;
    --header-height: 80px;
    --border-radius-lg: 16px;
    --border-radius-md: 10px;
    --border-radius-sm: 6px;
    --transition-smooth: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    
    --shadow-premium: 0 10px 30px -10px rgba(0, 0, 0, 0.5);
    --shadow-glow: 0 0 20px 2px rgba(99, 102, 241, 0.15);
}

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

body {
    font-family: var(--font-sans);
    background-color: var(--bg-app);
    color: var(--text-primary);
    overflow: hidden;
    height: 100vh;
    width: 100vw;
    -webkit-font-smoothing: antialiased;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}
::-webkit-scrollbar-track {
    background: rgba(0, 0, 0, 0.05);
    border-radius: 10px;
}
::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 10px;
}
::-webkit-scrollbar-thumb:hover {
    background: rgba(255, 255, 255, 0.2);
}

/* --- Main Layout --- */
.app-container {
    display: flex;
    height: 100vh;
    width: 100vw;
    position: relative;
    background-image: 
        radial-gradient(circle at 10% 20%, rgba(99, 102, 241, 0.08) 0%, transparent 40%),
        radial-gradient(circle at 90% 80%, rgba(6, 182, 212, 0.05) 0%, transparent 40%);
}

/* --- Sidebar Navigation --- */
.sidebar {
    width: var(--sidebar-width);
    background-color: var(--bg-sidebar);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    flex-shrink: 0;
    z-index: 10;
}

.brand {
    padding: 24px;
    display: flex;
    align-items: center;
    gap: 12px;
    border-bottom: 1px solid var(--border-color);
}

.brand-logo {
    color: var(--color-primary);
    background: rgba(99, 102, 241, 0.1);
    padding: 8px;
    border-radius: var(--border-radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid rgba(99, 102, 241, 0.25);
    box-shadow: 0 0 15px rgba(99, 102, 241, 0.2);
}

.brand-text h2 {
    font-family: var(--font-heading);
    font-size: 1.15rem;
    font-weight: 700;
    letter-spacing: 0.5px;
    color: #fff;
    line-height: 1.2;
}

.brand-text span {
    font-size: 0.75rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.nav-menu {
    flex: 1;
    padding: 24px 16px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.nav-btn {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 12px 16px;
    border-radius: var(--border-radius-md);
    background: transparent;
    border: 1px solid transparent;
    color: var(--text-secondary);
    font-family: var(--font-sans);
    font-size: 0.95rem;
    font-weight: 500;
    text-align: left;
    cursor: pointer;
    transition: var(--transition-smooth);
}

.nav-btn svg {
    transition: var(--transition-smooth);
}

.nav-btn:hover {
    background: rgba(255, 255, 255, 0.03);
    color: #fff;
}

.nav-btn.active {
    background: var(--color-primary-glow);
    border-color: rgba(99, 102, 241, 0.3);
    color: #fff;
    font-weight: 600;
    box-shadow: var(--shadow-glow);
}

.nav-btn.active svg {
    color: var(--color-primary);
    filter: drop-shadow(0 0 5px var(--color-primary-glow));
}

.sidebar-footer {
    padding: 16px;
    border-top: 1px solid var(--border-color);
}

/* --- Main Content Layout --- */
.main-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    position: relative;
}

.app-header {
    height: var(--header-height);
    padding: 0 40px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: 1px solid var(--border-color);
    background: rgba(9, 13, 22, 0.4);
    backdrop-filter: blur(10px);
    z-index: 5;
    flex-shrink: 0;
}

.header-info h1 {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 600;
    color: #fff;
}

.header-info p {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-top: 2px;
}

.theme-badge {
    background: rgba(16, 185, 129, 0.08);
    border: 1px solid rgba(16, 185, 129, 0.2);
    padding: 6px 14px;
    border-radius: 50px;
    font-size: 0.8rem;
    color: var(--color-success);
    display: flex;
    align-items: center;
    gap: 8px;
}

.pulse-indicator {
    width: 8px;
    height: 8px;
    background-color: var(--color-success);
    border-radius: 50%;
    display: inline-block;
    box-shadow: 0 0 10px var(--color-success);
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% { transform: scale(0.9); opacity: 1; }
    50% { transform: scale(1.2); opacity: 0.5; box-shadow: 0 0 14px 2px var(--color-success); }
    100% { transform: scale(0.9); opacity: 1; }
}

/* --- Content Views Container --- */
.content-view {
    display: none;
    flex: 1;
    overflow-y: auto;
    padding: 32px 40px;
    animation: fadeIn 0.4s ease-out forwards;
}

.content-view.active {
    display: block;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(8px); }
    to { opacity: 1; transform: translateY(0); }
}

/* --- Buttons --- */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 20px;
    border-radius: var(--border-radius-md);
    font-family: var(--font-sans);
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition-smooth);
    border: 1px solid transparent;
}

.btn-block {
    display: flex;
    width: 100%;
}

.btn-primary {
    background: var(--color-primary);
    color: #fff;
    box-shadow: 0 4px 15px -3px rgba(99, 102, 241, 0.4);
}
.btn-primary:hover {
    background: var(--color-primary-hover);
    box-shadow: 0 6px 20px -3px rgba(99, 102, 241, 0.6);
    transform: translateY(-1px);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-primary);
    border-color: var(--border-color);
}
.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.08);
    border-color: var(--border-color-hover);
}

.btn-success {
    background: var(--color-success);
    color: #fff;
    box-shadow: 0 4px 15px -3px rgba(16, 185, 129, 0.4);
}
.btn-success:hover {
    background: #059669;
    box-shadow: 0 6px 20px -3px rgba(16, 185, 129, 0.6);
}

.btn-danger {
    background: var(--color-danger);
    color: #fff;
}
.btn-danger:hover {
    background: #dc2626;
}

.btn-small {
    padding: 6px 12px;
    font-size: 0.8rem;
}

.btn-tab {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    padding: 6px 14px;
    font-size: 0.8rem;
    border-radius: var(--border-radius-sm);
}
.btn-tab.active {
    background: rgba(255, 255, 255, 0.08);
    border-color: var(--border-color-hover);
    color: #fff;
}

/* --- Stat Cards Grid --- */
.stat-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
    margin-bottom: 32px;
}

.stat-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    padding: 24px;
    display: flex;
    align-items: center;
    gap: 20px;
    box-shadow: var(--shadow-premium);
    backdrop-filter: blur(12px);
    transition: var(--transition-smooth);
}

.stat-card:hover {
    border-color: var(--border-color-hover);
    box-shadow: 0 10px 25px -5px rgba(0,0,0,0.6), var(--border-glow);
    transform: translateY(-2px);
}

.stat-icon {
    width: 52px;
    height: 52px;
    border-radius: var(--border-radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
}

.icon-primary { background: rgba(99, 102, 241, 0.1); color: var(--color-primary); border: 1px solid rgba(99, 102, 241, 0.2); }
.icon-success { background: rgba(16, 185, 129, 0.1); color: var(--color-success); border: 1px solid rgba(16, 185, 129, 0.2); }
.icon-info { background: rgba(6, 182, 212, 0.1); color: var(--color-info); border: 1px solid rgba(6, 182, 212, 0.2); }

.stat-info h3 {
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-secondary);
}

.stat-value {
    font-family: var(--font-heading);
    font-size: 1.85rem;
    font-weight: 700;
    color: #fff;
    margin: 4px 0;
}

.stat-label {
    font-size: 0.75rem;
    color: var(--text-muted);
}

.text-success { color: var(--color-success); }
.text-danger { color: var(--color-danger); }

/* --- Dashboard / Grid Sections --- */
.dashboard-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.grid-span-2 {
    grid-column: span 2;
}

.margin-top {
    margin-top: 32px;
}

/* --- Panels (Containers) --- */
.chart-container, .form-container, .info-container, .table-container {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    padding: 24px;
    backdrop-filter: blur(12px);
    box-shadow: var(--shadow-premium);
}

.chart-header, .form-header, .info-header, .table-header {
    margin-bottom: 20px;
}

.chart-header h3, .form-header h3, .info-header h3, .table-header h3 {
    font-family: var(--font-heading);
    font-size: 1.1rem;
    font-weight: 600;
    color: #fff;
}

.chart-wrapper {
    position: relative;
    height: 280px;
    width: 100%;
}

/* --- Form Elements --- */
.grid-form {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

label {
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--text-secondary);
}

input, select, textarea {
    width: 100%;
    background-color: var(--bg-input);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    padding: 10px 14px;
    border-radius: var(--border-radius-md);
    font-family: var(--font-sans);
    font-size: 0.9rem;
    outline: none;
    transition: var(--transition-smooth);
}

input:focus, select:focus, textarea:focus {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px var(--color-primary-glow);
}

.input-helper {
    font-size: 0.72rem;
    color: var(--text-muted);
}

.form-actions {
    display: flex;
    justify-content: flex-end;
    margin-top: 8px;
}

/* --- Product Info List --- */
.product-info-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.product-info-list li {
    font-size: 0.85rem;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 12px;
    background: rgba(255,255,255,0.01);
    border-radius: var(--border-radius-sm);
    border: 1px solid transparent;
}

.product-info-list li:hover {
    background: rgba(255,255,255,0.03);
    border-color: var(--border-color);
    color: #fff;
}

.dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    display: inline-block;
}

.d-1k { background: #818cf8; }
.d-2k { background: #34d399; }
.d-2kc { background: #60a5fa; }
.d-6kp { background: #fb7185; }
.d-14kp { background: #fbbf24; }
.d-cbb { background: #a78bfa; }
.d-1kib { background: #22d3ee; }
.d-pur { background: #f472b6; }

/* --- Kanban Board Styling --- */
.filter-bar {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    padding: 16px 24px;
    display: flex;
    align-items: center;
    gap: 24px;
    margin-bottom: 24px;
    backdrop-filter: blur(10px);
}

.filter-group {
    display: flex;
    align-items: center;
    gap: 12px;
}

.filter-group select {
    width: auto;
    min-width: 140px;
    padding: 6px 12px;
}

.kanban-week-summary {
    margin-left: auto;
    font-size: 0.9rem;
    color: var(--color-info);
    background: rgba(6, 182, 212, 0.08);
    border: 1px solid rgba(6, 182, 212, 0.15);
    padding: 6px 16px;
    border-radius: 50px;
}

.kanban-board {
    display: flex;
    gap: 20px;
    overflow-x: auto;
    height: calc(100vh - var(--header-height) - 150px);
    padding-bottom: 12px;
    align-items: flex-start;
}

.kanban-column {
    flex: 1;
    min-width: 290px;
    max-width: 360px;
    background: rgba(13, 20, 36, 0.55);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    display: flex;
    flex-direction: column;
    max-height: 100%;
    backdrop-filter: blur(8px);
}

.column-header {
    padding: 16px 20px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.column-title {
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 0.95rem;
    color: #fff;
}

.card-count {
    background: rgba(255,255,255,0.06);
    padding: 2px 10px;
    border-radius: 20px;
    font-size: 0.75rem;
    color: var(--text-secondary);
}

.column-cards {
    flex: 1;
    overflow-y: auto;
    padding: 16px;
    display: flex;
    flex-direction: column;
    gap: 14px;
    min-height: 150px;
}

/* Kanban Cards */
.kanban-card {
    background: rgba(20, 27, 45, 0.9);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-md);
    padding: 16px;
    cursor: grab;
    transition: var(--transition-smooth);
    user-select: none;
    box-shadow: 0 4px 10px rgba(0,0,0,0.3);
}

.kanban-card:hover {
    border-color: rgba(99, 102, 241, 0.4);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.5), 0 0 12px rgba(99, 102, 241, 0.1);
    transform: translateY(-2px);
}

.kanban-card:active {
    cursor: grabbing;
}

.card-tag {
    display: inline-block;
    font-size: 0.68rem;
    font-weight: 600;
    text-transform: uppercase;
    padding: 3px 8px;
    border-radius: 4px;
    margin-bottom: 10px;
    letter-spacing: 0.5px;
}

.tag-1k { background: rgba(129, 140, 248, 0.15); color: #a5b4fc; }
.tag-2k { background: rgba(52, 211, 153, 0.15); color: #6ee7b7; }
.tag-2kc { background: rgba(96, 165, 250, 0.15); color: #93c5fd; }
.tag-6kp { background: rgba(251, 113, 133, 0.15); color: #fecdd3; }
.tag-14kp { background: rgba(251, 191, 36, 0.15); color: #fde68a; }
.tag-cbb { background: rgba(167, 139, 250, 0.15); color: #c4b5fd; }
.tag-1kib { background: rgba(34, 211, 238, 0.15); color: #67e8f9; }
.tag-pur { background: rgba(244, 114, 182, 0.15); color: #fbcfe8; }
.tag-other { background: rgba(255, 255, 255, 0.1); color: #e5e7eb; }

.card-title {
    font-size: 0.95rem;
    font-weight: 600;
    color: #fff;
    margin-bottom: 6px;
    line-height: 1.3;
}

.card-desc {
    font-size: 0.78rem;
    color: var(--text-secondary);
    margin-bottom: 14px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* Card Progress Bar */
.card-progress-wrap {
    margin-bottom: 12px;
}

.progress-label-wrap {
    display: flex;
    justify-content: space-between;
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-bottom: 4px;
}

.progress-label-wrap strong {
    color: var(--text-secondary);
}

.progress-bar-container {
    width: 100%;
    height: 6px;
    background: rgba(255,255,255,0.06);
    border-radius: 10px;
    overflow: hidden;
}

.progress-bar-container.mini {
    height: 4px;
    margin-top: 4px;
}

.progress-bar {
    height: 100%;
    background: var(--color-primary);
    border-radius: 10px;
    transition: width 0.5s ease-out;
}

.progress-bar.success {
    background: var(--color-success);
}

.card-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-top: 1px solid rgba(255, 255, 255, 0.04);
    padding-top: 10px;
    font-size: 0.72rem;
    color: var(--text-muted);
}

.card-dates {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.card-dates .deadline-warning {
    color: var(--color-danger);
    font-weight: 500;
}

.card-assignee {
    background: rgba(255,255,255,0.05);
    border: 1px solid var(--border-color);
    padding: 2px 8px;
    border-radius: 40px;
    color: var(--text-secondary);
    max-width: 110px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.card-remarks {
    margin-top: 8px;
    font-size: 0.72rem;
    color: var(--text-muted);
    font-style: italic;
    background: rgba(255,255,255,0.01);
    padding: 4px 8px;
    border-radius: 4px;
    border-left: 2px solid var(--border-color);
    word-break: break-all;
}

/* Dragging overlay state */
.column-cards.drag-over {
    background: rgba(99, 102, 241, 0.03);
    border-radius: 0 0 var(--border-radius-lg) var(--border-radius-lg);
}

/* --- Worker Portal Specifics --- */
.worker-portal-grid {
    display: grid;
    grid-template-columns: 340px 1fr;
    gap: 24px;
    align-items: start;
}

.worker-select-section {
    background: rgba(255,255,255,0.02);
    padding: 16px;
    border-radius: var(--border-radius-md);
    margin-bottom: 20px;
    border: 1px solid var(--border-color);
}

.worker-selector-wrap {
    display: flex;
    gap: 10px;
    margin-top: 8px;
}

.worker-selector-wrap select {
    flex: 1;
}

/* --- Table Styling --- */
.table-wrapper {
    overflow-x: auto;
    width: 100%;
}

.table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.85rem;
    text-align: left;
}

.table th, .table td {
    padding: 12px 16px;
    border-bottom: 1px solid var(--border-color);
}

.table th {
    font-family: var(--font-heading);
    font-weight: 600;
    color: var(--text-secondary);
    background: rgba(255, 255, 255, 0.01);
}

.table tr {
    transition: var(--transition-smooth);
}

.table tbody tr:hover {
    background: rgba(255, 255, 255, 0.02);
}

.table td {
    color: var(--text-primary);
}

.table .row-action-btn {
    background: transparent;
    border: none;
    color: var(--color-danger);
    cursor: pointer;
    padding: 4px;
    border-radius: 4px;
    transition: var(--transition-smooth);
    display: inline-flex;
    align-items: center;
}

.table .row-action-btn:hover {
    background: rgba(239, 68, 68, 0.15);
    color: #ff8a8a;
}

/* --- Todo List Styling --- */
.todo-view-container {
    display: grid;
    grid-template-columns: 320px 1fr;
    gap: 24px;
    align-items: start;
}

.todo-sidebar-info .stat-card.mini {
    padding: 16px;
    gap: 14px;
}
.todo-sidebar-info .stat-icon.small {
    width: 40px;
    height: 40px;
}
.todo-progress-text {
    font-size: 1.1rem;
    font-weight: 700;
    font-family: var(--font-heading);
}

.form-container.compact {
    padding: 16px;
}

.todo-list-main {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    padding: 24px;
    min-height: 400px;
}

.todo-controls {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    gap: 16px;
    flex-wrap: wrap;
}

.search-wrap {
    position: relative;
    flex: 1;
    min-width: 250px;
}

.search-wrap svg {
    position: absolute;
    left: 12px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-secondary);
}

.search-wrap input {
    padding-left: 36px;
}

.filter-wrap {
    display: flex;
    gap: 8px;
}

.todo-list-cards {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.todo-item-card {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-md);
    padding: 14px 20px;
    display: flex;
    align-items: center;
    gap: 16px;
    transition: var(--transition-smooth);
}

.todo-item-card:hover {
    background: rgba(255, 255, 255, 0.04);
    border-color: var(--border-color-hover);
    transform: translateX(2px);
}

.todo-checkbox {
    width: 20px;
    height: 20px;
    border: 2px solid var(--border-color);
    border-radius: 6px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition-smooth);
    flex-shrink: 0;
}

.todo-checkbox.checked {
    background: var(--color-success);
    border-color: var(--color-success);
    color: #fff;
}

.todo-checkbox svg {
    display: none;
}
.todo-checkbox.checked svg {
    display: block;
}

.todo-text-wrap {
    flex: 1;
}

.todo-title {
    font-size: 0.92rem;
    font-weight: 500;
    color: #fff;
    transition: var(--transition-smooth);
}

.todo-item-card.done .todo-title {
    color: var(--text-muted);
    text-decoration: line-through;
}

.todo-notes {
    font-size: 0.76rem;
    color: var(--text-secondary);
    margin-top: 4px;
}

.todo-delete-btn {
    background: transparent;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    padding: 6px;
    border-radius: 4px;
    transition: var(--transition-smooth);
    display: inline-flex;
    align-items: center;
}

.todo-delete-btn:hover {
    background: rgba(239, 68, 68, 0.1);
    color: var(--color-danger);
}

/* --- Responsive CSS --- */
@media (max-width: 1024px) {
    .app-container {
        flex-direction: column;
    }
    .sidebar {
        width: 100%;
        height: auto;
        border-right: none;
        border-bottom: 1px solid var(--border-color);
    }
    .brand {
        padding: 16px 24px;
    }
    .nav-menu {
        flex-direction: row;
        padding: 12px 24px;
        overflow-x: auto;
        gap: 12px;
    }
    .sidebar-footer {
        display: none;
    }
    .main-content {
        flex: 1;
        height: auto; /* Allow flexbox to naturally size the main content */
    }
    .content-view {
        padding: 24px 20px;
    }
    .app-header {
        padding: 0 20px;
    }
    .dashboard-grid {
        grid-template-columns: 1fr;
    }
    .grid-span-2 {
        grid-column: span 1;
    }
    .worker-portal-grid {
        grid-template-columns: 1fr;
    }
    .todo-view-container {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 767px) {
    /* Mobile-optimized Layout */
    .sidebar {
        flex-direction: row;
        justify-content: space-between;
        align-items: center;
        padding: 10px 16px;
        height: 60px;
        border-bottom: 1px solid var(--border-color);
        background: var(--bg-sidebar);
    }
    .brand {
        padding: 0;
        border-bottom: none;
        gap: 8px;
    }
    .brand-logo-img {
        width: 32px;
        height: 32px;
    }
    .brand-text h2 {
        font-size: 0.95rem;
    }
    .brand-text span {
        display: none; /* Hide brand subtext on mobile */
    }
    
    /* Make Reset Button visible in top bar on mobile */
    .sidebar-footer {
        display: block !important;
        padding: 0;
        border-top: none;
    }
    .sidebar-footer .btn {
        padding: 6px 10px;
        font-size: 0.72rem;
        background: rgba(255, 255, 255, 0.05);
        border: 1px solid var(--border-color);
    }
    
    /* Sticky Bottom Tab Navigation */
    .nav-menu {
        position: fixed !important;
        bottom: 0 !important;
        left: 0 !important;
        right: 0 !important;
        height: 64px !important;
        background: #0f1524 !important;
        border-top: 1px solid var(--border-color) !important;
        flex-direction: row !important;
        justify-content: space-around !important;
        align-items: center !important;
        padding: 4px 6px !important;
        gap: 2px !important;
        z-index: 2000 !important;
        overflow: hidden !important;
        box-shadow: 0 -4px 20px rgba(0,0,0,0.4);
    }
    .nav-btn {
        flex: 1;
        height: 100%;
        flex-direction: column;
        justify-content: center;
        align-items: center;
        gap: 2px;
        font-size: 0.65rem;
        padding: 6px 2px;
        background: transparent !important;
        border: none !important;
        text-align: center;
        color: var(--text-secondary);
        border-radius: 0;
        box-shadow: none !important;
    }
    .nav-btn svg {
        width: 18px;
        height: 18px;
        margin-bottom: 2px;
    }
    .nav-btn.active {
        color: var(--color-primary) !important;
    }
    .nav-btn.active svg {
        color: var(--color-primary) !important;
        filter: drop-shadow(0 0 4px var(--color-primary-glow));
    }
    
    /* Content Padding adjustments for mobile */
    .main-content {
        padding-bottom: 64px; /* Give room for bottom nav */
    }
    .content-view {
        padding: 16px 12px 32px 12px;
        -webkit-overflow-scrolling: touch;
    }
    
    /* Header layout for mobile */
    .app-header {
        height: auto;
        min-height: 60px;
        padding: 12px 16px;
        flex-direction: column;
        align-items: stretch;
        gap: 10px;
        background: rgba(9, 13, 22, 0.6);
        border-bottom: 1px solid var(--border-color);
    }
    .header-info h1 {
        font-size: 1.25rem;
    }
    .header-info p {
        display: none; /* Hide subtitle on mobile to save space */
    }
    .header-actions {
        display: flex;
        flex-direction: row;
        flex-wrap: wrap;
        align-items: center;
        gap: 8px;
        width: 100%;
    }
    .header-actions .btn {
        flex: 1;
        padding: 8px 10px;
        font-size: 0.78rem;
        justify-content: center;
    }
    .header-actions .language-switcher {
        margin-right: 0;
        flex: 1.2;
        justify-content: space-around;
    }
    .header-actions .btn-lang {
        flex: 1;
        text-align: center;
        padding: 4px;
        font-size: 0.72rem;
    }
    .header-actions .theme-badge {
        width: 100%;
        justify-content: center;
        padding: 4px 10px;
        font-size: 0.75rem;
    }
    
    /* KPI grids and forms */
    .stat-grid {
        gap: 16px;
        margin-bottom: 20px;
    }
    .stat-card {
        padding: 16px;
        gap: 14px;
    }
    .stat-icon {
        width: 44px;
        height: 44px;
        border-radius: var(--border-radius-md);
    }
    .stat-value {
        font-size: 1.5rem;
    }
    .chart-wrapper {
        height: 230px;
    }
    .grid-form {
        grid-template-columns: 1fr;
        gap: 12px;
    }
    .grid-span-2 {
        grid-column: span 1;
    }
    .form-actions {
        width: 100%;
        margin-top: 4px;
    }
    .form-actions .btn {
        width: 100%;
    }
    
    /* Kanban Mobile swipe adjustments */
    .filter-bar {
        flex-direction: column;
        align-items: stretch;
        gap: 12px;
        padding: 12px 16px;
    }
    .filter-group {
        width: 100%;
        justify-content: space-between;
    }
    .filter-group select {
        flex: 1;
    }
    .kanban-week-summary {
        margin-left: 0;
        text-align: center;
        width: 100%;
        font-size: 0.8rem;
    }
    .kanban-board {
        height: calc(100vh - 190px - 64px); /* Screen minus headers and bottom nav */
        padding: 4px 8px 16px;
        gap: 12px;
    }
    .kanban-column {
        min-width: 84vw;
        max-height: 100%;
    }
    .column-header {
        padding: 12px 16px;
    }
    .column-cards {
        padding: 12px;
        gap: 10px;
    }
    
    /* Worker selection adjustments */
    .worker-selector-wrap {
        flex-direction: column;
        gap: 8px;
    }
    .worker-selector-wrap select {
        width: 100%;
    }
    .worker-selector-wrap .btn {
        width: 100%;
    }
    .table th, .table td {
        padding: 8px;
        font-size: 0.78rem;
    }
    
    /* Todo items */
    .search-wrap {
        width: 100%;
        min-width: auto;
    }
}


/* --- Brand Logo & Language Switcher Updates --- */
.brand-logo-img {
    width: 42px;
    height: 42px;
    object-fit: contain;
    border-radius: var(--border-radius-sm);
    border: 1px solid rgba(255, 255, 255, 0.12);
    background: rgba(255, 255, 255, 0.04);
}

.language-switcher {
    display: flex;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-color);
    padding: 3px;
    border-radius: var(--border-radius-md);
    gap: 2px;
    margin-right: 12px;
}

.btn-lang {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    padding: 6px 12px;
    font-size: 0.75rem;
    font-weight: 700;
    border-radius: var(--border-radius-sm);
    cursor: pointer;
    transition: var(--transition-smooth);
}

.btn-lang:hover {
    color: #fff;
    background: rgba(255, 255, 255, 0.04);
}

.btn-lang.active {
    background: var(--color-primary);
    color: #fff;
    box-shadow: 0 2px 8px rgba(99, 102, 241, 0.35);
}