/**
 * Warehouse Management System Styles
 * Dark, Light, and Blue Theme Support
 */

/* CSS Variables for Themes */
:root {
    /* Light Theme (Default) */
    --bg-primary: #f8f9fa;
    --bg-secondary: #ffffff;
    --bg-tertiary: #e9ecef;
    --text-primary: #212529;
    --text-secondary: #6c757d;
    --text-muted: #adb5bd;
    --border-color: #dee2e6;
    --accent-color: #0d6efd;
    --accent-hover: #0b5ed7;
    --success-color: #198754;
    --warning-color: #ffc107;
    --danger-color: #dc3545;
    --info-color: #0dcaf0;
    --sidebar-bg: #212529;
    --sidebar-text: #ffffff;
    --sidebar-hover: #343a40;
    --sidebar-active: #0d6efd;
    --navbar-bg: #ffffff;
    --card-bg: #ffffff;
    --card-shadow: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.075);
    --table-hover: #f8f9fa;
    --input-bg: #ffffff;
    --input-border: #ced4da;
}

/* Dark Theme */
[data-theme="dark"] {
    --bg-primary: #121212;
    --bg-secondary: #1e1e1e;
    --bg-tertiary: #2d2d2d;
    --text-primary: #e0e0e0;
    --text-secondary: #a0a0a0;
    --text-muted: #6c6c6c;
    --border-color: #3d3d3d;
    --accent-color: #3d8bfd;
    --accent-hover: #5a9cfe;
    --sidebar-bg: #0a0a0a;
    --sidebar-text: #e0e0e0;
    --sidebar-hover: #1a1a1a;
    --sidebar-active: #3d8bfd;
    --navbar-bg: #1e1e1e;
    --card-bg: #1e1e1e;
    --card-shadow: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.3);
    --table-hover: #2d2d2d;
    --input-bg: #2d2d2d;
    --input-border: #3d3d3d;
}

/* Blue Theme */
[data-theme="blue"] {
    --bg-primary: #e7f1ff;
    --bg-secondary: #ffffff;
    --bg-tertiary: #cfe2ff;
    --text-primary: #0a2540;
    --text-secondary: #3d5a80;
    --text-muted: #7f9ab5;
    --border-color: #b6d4fe;
    --accent-color: #0d6efd;
    --accent-hover: #0b5ed7;
    --sidebar-bg: #0a2540;
    --sidebar-text: #e7f1ff;
    --sidebar-hover: #1a3a5c;
    --sidebar-active: #3d8bfd;
    --navbar-bg: #ffffff;
    --card-bg: #ffffff;
    --card-shadow: 0 0.125rem 0.25rem rgba(13, 110, 253, 0.1);
    --table-hover: #e7f1ff;
    --input-bg: #ffffff;
    --input-border: #b6d4fe;
}

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    min-height: 100vh;
    padding-top: 60px;
    transition: background-color 0.3s ease, color 0.3s ease;
}

/* Navbar */
.main-navbar {
    background-color: var(--navbar-bg);
    border-bottom: 1px solid var(--border-color);
    box-shadow: var(--card-shadow);
    height: 60px;
    z-index: 1040;
}

.main-navbar .navbar-brand {
    color: var(--accent-color);
    font-weight: 600;
}

.main-navbar .btn-link {
    color: var(--text-primary);
    text-decoration: none;
    font-size: 1.25rem;
}

.main-navbar .btn-link:hover {
    color: var(--accent-color);
}

.sidebar-toggle {
    padding: 0.5rem;
}

.theme-toggle, .user-menu {
    padding: 0.5rem 1rem;
}

.user-menu span {
    margin: 0 0.5rem;
}

.notification-badge {
    font-size: 0.6rem;
}

/* Sidebar */
.sidebar {
    position: fixed;
    top: 60px;
    left: 0;
    width: 260px;
    height: calc(100vh - 60px);
    background-color: var(--sidebar-bg);
    z-index: 1030;
    transition: transform 0.3s ease;
    overflow-y: auto;
}

.sidebar.collapsed {
    transform: translateX(-260px);
}

.sidebar-content {
    padding: 1rem 0;
}

.sidebar-nav .nav-item {
    margin: 0;
}

.sidebar-nav .nav-link {
    color: var(--sidebar-text);
    padding: 0.75rem 1.25rem;
    display: flex;
    align-items: center;
    transition: all 0.2s ease;
    border-left: 3px solid transparent;
}

.sidebar-nav .nav-link i {
    margin-right: 0.75rem;
    width: 20px;
    text-align: center;
}

.sidebar-nav .nav-link:hover {
    background-color: var(--sidebar-hover);
    color: var(--sidebar-text);
}

.sidebar-nav .nav-link.active {
    background-color: var(--sidebar-hover);
    border-left-color: var(--sidebar-active);
    color: var(--sidebar-active);
}

.sidebar-nav .nav-section {
    padding: 1rem 1.25rem 0.5rem;
    color: var(--text-muted);
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.5px;
    text-transform: uppercase;
}

.sidebar-nav .collapse .nav-link {
    padding-left: 1rem;
    font-size: 0.9rem;
}

/* Main Content */
.main-content {
    margin-left: 260px;
    padding: 1.5rem;
    min-height: calc(100vh - 120px);
    transition: margin-left 0.3s ease;
}

.sidebar.collapsed + .main-content {
    margin-left: 0;
}

/* Footer */
.main-footer {
    margin-left: 260px;
    padding: 1rem 1.5rem;
    background-color: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    color: var(--text-secondary);
    font-size: 0.875rem;
    transition: margin-left 0.3s ease;
}

.sidebar.collapsed ~ .main-footer {
    margin-left: 0;
}

/* Cards */
.card {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 0.5rem;
    box-shadow: var(--card-shadow);
}

.card-header {
    background-color: var(--bg-tertiary);
    border-bottom: 1px solid var(--border-color);
    font-weight: 600;
}

.stat-card {
    padding: 1.5rem;
    border-radius: 0.5rem;
    background: linear-gradient(135deg, var(--accent-color) 0%, var(--accent-hover) 100%);
    color: #ffffff;
    box-shadow: var(--card-shadow);
}

.stat-card.success {
    background: linear-gradient(135deg, var(--success-color) 0%, #157347 100%);
}

.stat-card.warning {
    background: linear-gradient(135deg, var(--warning-color) 0%, #ffca2c 100%);
    color: #000;
}

.stat-card.danger {
    background: linear-gradient(135deg, var(--danger-color) 0%, #bb2d3b 100%);
}

.stat-card.info {
    background: linear-gradient(135deg, var(--info-color) 0%, #0aa2c0 100%);
}

.stat-card .stat-icon {
    font-size: 2.5rem;
    opacity: 0.8;
}

.stat-card .stat-value {
    font-size: 2rem;
    font-weight: 700;
}

.stat-card .stat-label {
    font-size: 0.875rem;
    opacity: 0.9;
}

/* Tables */
.table {
    color: var(--text-primary);
    background-color: var(--card-bg);
}

.table thead th {
    background-color: var(--bg-tertiary);
    border-bottom: 2px solid var(--border-color);
    font-weight: 600;
    text-transform: uppercase;
    font-size: 0.75rem;
    letter-spacing: 0.5px;
    color: var(--text-secondary);
}

.table tbody tr:hover {
    background-color: var(--table-hover);
}

.table td, .table th {
    border-color: var(--border-color);
    vertical-align: middle;
}

/* DataTables Override */
.dataTables_wrapper .dataTables_filter input,
.dataTables_wrapper .dataTables_length select {
    background-color: var(--input-bg);
    border: 1px solid var(--input-border);
    color: var(--text-primary);
    border-radius: 0.375rem;
    padding: 0.375rem 0.75rem;
}

.dataTables_wrapper .dataTables_info,
.dataTables_wrapper .dataTables_paginate {
    color: var(--text-secondary);
}

.dataTables_wrapper .dataTables_paginate .paginate_button {
    color: var(--text-primary) !important;
}

.dataTables_wrapper .dataTables_paginate .paginate_button.current {
    background: var(--accent-color) !important;
    border-color: var(--accent-color) !important;
    color: #fff !important;
}

/* Forms */
.form-control, .form-select {
    background-color: var(--input-bg);
    border-color: var(--input-border);
    color: var(--text-primary);
}

.form-control:focus, .form-select:focus {
    background-color: var(--input-bg);
    border-color: var(--accent-color);
    color: var(--text-primary);
    box-shadow: 0 0 0 0.25rem rgba(13, 110, 253, 0.25);
}

.form-label {
    color: var(--text-primary);
    font-weight: 500;
}

.input-group-text {
    background-color: var(--bg-tertiary);
    border-color: var(--input-border);
    color: var(--text-secondary);
}

/* Buttons */
.btn-primary {
    background-color: var(--accent-color);
    border-color: var(--accent-color);
}

.btn-primary:hover {
    background-color: var(--accent-hover);
    border-color: var(--accent-hover);
}

.btn-outline-primary {
    color: var(--accent-color);
    border-color: var(--accent-color);
}

.btn-outline-primary:hover {
    background-color: var(--accent-color);
    color: #fff;
}

/* Badges */
.badge {
    font-weight: 500;
    padding: 0.4em 0.65em;
}

.badge-status-active {
    background-color: var(--success-color);
}

.badge-status-inactive {
    background-color: var(--danger-color);
}

.badge-attendance-p {
    background-color: var(--success-color);
}

.badge-attendance-sl {
    background-color: var(--warning-color);
    color: #000;
}

.badge-attendance-al {
    background-color: var(--info-color);
}

.badge-attendance-ul {
    background-color: var(--danger-color);
}

/* Monthly Attendance Grid */
.attendance-grid {
    overflow-x: auto;
}

.attendance-grid table {
    min-width: 100%;
}

.attendance-grid th.sticky,
.attendance-grid td.sticky {
    position: sticky;
    background-color: var(--card-bg);
    z-index: 1;
}

.attendance-grid th.sticky:first-child,
.attendance-grid td.sticky:first-child {
    left: 0;
}

.attendance-grid th.sticky:nth-child(2),
.attendance-grid td.sticky:nth-child(2) {
    left: 80px;
}

.attendance-grid th.sticky:nth-child(3),
.attendance-grid td.sticky:nth-child(3) {
    left: 200px;
}

.attendance-grid th.sticky:nth-child(4),
.attendance-grid td.sticky:nth-child(4) {
    left: 320px;
}

.attendance-cell {
    text-align: center;
    min-width: 50px;
    padding: 0.25rem !important;
    font-size: 0.8rem;
    font-weight: 500;
}

.attendance-cell.weekend {
    background-color: var(--bg-tertiary);
}

.attendance-cell.holiday {
    background-color: rgba(255, 193, 7, 0.2);
}

/* Login Page */
body.login-page {
    padding-top: 0;
    background: transparent;
}

.login-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--accent-color) 0%, var(--accent-hover) 100%);
    padding: 1rem;
}

.login-card {
    width: 100%;
    max-width: 400px;
    background: var(--card-bg);
    border-radius: 1rem;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
    overflow: hidden;
}

.login-header {
    background: var(--bg-tertiary);
    padding: 2rem;
    text-align: center;
}

.login-header h1 {
    color: var(--accent-color);
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

.login-body {
    padding: 2rem;
}

/* Dropdowns */
.dropdown-menu {
    background-color: var(--card-bg);
    border-color: var(--border-color);
    box-shadow: var(--card-shadow);
}

.dropdown-item {
    color: var(--text-primary);
}

.dropdown-item:hover {
    background-color: var(--bg-tertiary);
    color: var(--text-primary);
}

.dropdown-header {
    color: var(--text-secondary);
}

/* Modals */
.modal-content {
    background-color: var(--card-bg);
    border-color: var(--border-color);
}

.modal-header {
    background-color: var(--bg-tertiary);
    border-bottom-color: var(--border-color);
}

.modal-footer {
    border-top-color: var(--border-color);
}

/* Alerts */
.alert {
    border-radius: 0.5rem;
}

/* Charts */
.chart-container {
    position: relative;
    height: 300px;
}

/* Loading Spinner */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
}

.spinner-border {
    width: 3rem;
    height: 3rem;
}

/* Responsive */
@media (max-width: 991.98px) {
    .sidebar {
        transform: translateX(-260px);
    }
    
    .sidebar.show {
        transform: translateX(0);
    }
    
    .main-content,
    .main-footer {
        margin-left: 0;
    }
}

/* Scrollbar */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-tertiary);
}

::-webkit-scrollbar-thumb {
    background: var(--text-muted);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--text-secondary);
}

/* Utilities */
.cursor-pointer {
    cursor: pointer;
}

.text-accent {
    color: var(--accent-color);
}

.bg-accent {
    background-color: var(--accent-color);
}

/* Page Header */
.page-header {
    margin-bottom: 1.5rem;
}

.page-header h1 {
    font-size: 1.75rem;
    font-weight: 600;
    margin-bottom: 0.25rem;
}

.page-header .breadcrumb {
    margin-bottom: 0;
    font-size: 0.875rem;
}

.breadcrumb-item a {
    color: var(--accent-color);
    text-decoration: none;
}

/* Quick Actions */
.quick-actions {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.quick-actions .btn {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

/* File Upload */
.file-upload {
    border: 2px dashed var(--border-color);
    border-radius: 0.5rem;
    padding: 2rem;
    text-align: center;
    cursor: pointer;
    transition: border-color 0.3s ease;
}

.file-upload:hover {
    border-color: var(--accent-color);
}

.file-upload i {
    font-size: 2rem;
    color: var(--text-muted);
}

/* Transfer Hours */
.transfer-card {
    border-left: 4px solid var(--accent-color);
}

.transfer-arrow {
    font-size: 1.5rem;
    color: var(--accent-color);
}

/* Animation */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(-10px); }
    to { opacity: 1; transform: translateY(0); }
}

.fade-in {
    animation: fadeIn 0.3s ease;
}

/* =============================================
   TASK AREA CHECKBOX GROUP
   ============================================= */
.task-area-group {
    display: flex;
    flex-wrap: wrap;
    gap: 0.35rem 1rem;
    padding: 0.6rem 0.75rem;
    border: 1px solid var(--input-border);
    border-radius: 0.375rem;
    background-color: var(--input-bg);
    min-height: 42px;
    align-items: center;
}

.task-area-group .form-check {
    margin: 0;
}

.task-area-group .form-check-input {
    cursor: pointer;
}

.task-area-group .form-check-label {
    cursor: pointer;
    font-weight: 400;
    color: var(--text-primary);
    white-space: nowrap;
}

/* Task area tags in display cells */
.task-area-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.2rem;
}

.task-area-tag {
    display: inline-block;
    font-size: 0.7rem;
    padding: 0.15em 0.5em;
    border-radius: 999px;
    background-color: var(--bg-tertiary);
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
    white-space: nowrap;
}

/* =============================================
   DESIGNATION AUTOCOMPLETE DROPDOWN
   ============================================= */
.designation-dropdown .list-group-item {
    background-color: var(--card-bg);
    color: var(--text-primary);
    border-color: var(--border-color);
    font-size: 0.875rem;
}

.designation-dropdown .list-group-item:hover,
.designation-dropdown .list-group-item:focus {
    background-color: var(--bg-tertiary);
    color: var(--text-primary);
}

/* =============================================
   IMPROVED TABLE STYLES
   ============================================= */
.table-sm td, .table-sm th {
    padding: 0.4rem 0.6rem;
}

/* Attendance table compact inputs */
.table .form-control-sm,
.table .form-select-sm {
    font-size: 0.8rem;
}

/* Stripe alternating rows */
.table-striped > tbody > tr:nth-of-type(odd) > * {
    background-color: rgba(var(--bs-emphasis-color-rgb, 0,0,0), 0.025);
}

/* =============================================
   IMPROVED CARD HEADERS
   ============================================= */
.card-header {
    padding: 0.85rem 1.25rem;
    font-size: 0.95rem;
    letter-spacing: 0.01em;
}

.card-header .badge {
    font-size: 0.75rem;
}

/* =============================================
   IMPROVED FORM LAYOUT
   ============================================= */
.form-section-title {
    font-size: 0.8rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-muted);
    padding-bottom: 0.5rem;
    border-bottom: 1px solid var(--border-color);
    margin-bottom: 1rem;
}

.form-control::placeholder,
.form-select::placeholder {
    color: var(--text-muted);
    opacity: 0.7;
}

/* Focus ring fix for dark theme */
[data-theme="dark"] .form-control:focus,
[data-theme="dark"] .form-select:focus,
[data-theme="dark"] .form-check-input:focus {
    box-shadow: 0 0 0 0.25rem rgba(61, 139, 253, 0.3);
}

/* =============================================
   IMPROVED BUTTONS
   ============================================= */
.btn {
    font-weight: 500;
    transition: all 0.15s ease;
}

.btn-sm {
    font-size: 0.8rem;
}

.btn:active {
    transform: scale(0.97);
}

/* =============================================
   DARK THEME FIXES
   ============================================= */
[data-theme="dark"] .table-light,
[data-theme="dark"] thead.table-light th,
[data-theme="dark"] .table thead th {
    background-color: var(--bg-tertiary) !important;
    color: var(--text-secondary) !important;
    border-color: var(--border-color) !important;
}

[data-theme="dark"] .table-secondary {
    --bs-table-bg: #2d2d2d;
    --bs-table-color: var(--text-secondary);
}

[data-theme="dark"] .modal-content,
[data-theme="dark"] .modal-header,
[data-theme="dark"] .modal-footer,
[data-theme="dark"] .modal-body {
    background-color: var(--card-bg);
    border-color: var(--border-color);
    color: var(--text-primary);
}

[data-theme="dark"] .alert-info {
    background-color: rgba(13, 202, 240, 0.1);
    border-color: rgba(13, 202, 240, 0.3);
    color: #0dcaf0;
}

[data-theme="dark"] .alert-success {
    background-color: rgba(25, 135, 84, 0.15);
    border-color: rgba(25, 135, 84, 0.3);
    color: #75b798;
}

[data-theme="dark"] .alert-warning {
    background-color: rgba(255, 193, 7, 0.1);
    border-color: rgba(255, 193, 7, 0.3);
    color: #ffc107;
}

[data-theme="dark"] .alert-danger {
    background-color: rgba(220, 53, 69, 0.1);
    border-color: rgba(220, 53, 69, 0.3);
    color: #ea868f;
}

[data-theme="dark"] .breadcrumb-item.active,
[data-theme="dark"] .breadcrumb-item + .breadcrumb-item::before {
    color: var(--text-muted);
}

[data-theme="dark"] .list-group-item {
    background-color: var(--card-bg);
    border-color: var(--border-color);
    color: var(--text-primary);
}

[data-theme="dark"] .task-area-group {
    border-color: var(--input-border);
    background-color: var(--input-bg);
}

[data-theme="dark"] .form-check-input {
    background-color: var(--input-bg);
    border-color: var(--input-border);
}

[data-theme="dark"] .form-check-input:checked {
    background-color: var(--accent-color);
    border-color: var(--accent-color);
}

/* =============================================
   BLUE THEME FIXES
   ============================================= */
[data-theme="blue"] .table thead th {
    background-color: var(--bg-tertiary);
    color: var(--text-secondary);
    border-color: var(--border-color);
}

[data-theme="blue"] .task-area-group {
    border-color: var(--input-border);
    background-color: var(--input-bg);
}

/* =============================================
   STAT CARD IMPROVEMENTS
   ============================================= */
.stat-card {
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.stat-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 0.5rem 1rem rgba(0,0,0,0.15);
}

/* =============================================
   ATTENDANCE STATUS COLORS (inline selects)
   ============================================= */
select option[value="P"]  { color: #198754; }
select option[value="SL"] { color: #ffc107; }
select option[value="AL"] { color: #0dcaf0; }
select option[value="UL"] { color: #dc3545; }

/* =============================================
   RESPONSIVE IMPROVEMENTS
   ============================================= */
@media (max-width: 767.98px) {
    .page-header h1 {
        font-size: 1.35rem;
    }

    .task-area-group {
        gap: 0.3rem 0.5rem;
    }

    .task-area-group .form-check-label {
        font-size: 0.82rem;
    }

    .stat-card .stat-value {
        font-size: 1.5rem;
    }

    .stat-card .stat-icon {
        font-size: 1.8rem;
    }

    .table-responsive .form-control-sm,
    .table-responsive .form-select-sm {
        font-size: 0.75rem;
    }

    .btn-lg {
        font-size: 0.95rem;
        padding: 0.5rem 1rem;
    }
}

@media (max-width: 575.98px) {
    .main-content {
        padding: 1rem;
    }

    .page-header {
        margin-bottom: 1rem;
    }

    .card-body {
        padding: 0.75rem;
    }

    .form-check-inline {
        margin-right: 0.5rem;
    }
}

/* =============================================
   SIDEBAR IMPROVEMENTS
   ============================================= */
.sidebar-nav .nav-link .badge {
    font-size: 0.65rem;
    padding: 0.25em 0.5em;
}

/* Collapsed submenu transition */
.sidebar-nav .collapse {
    transition: height 0.2s ease;
}

/* =============================================
   NAVBAR IMPROVEMENTS
   ============================================= */
.main-navbar .navbar-brand span {
    font-size: 1rem;
    letter-spacing: 0.01em;
}

/* User avatar in navbar */
.user-avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background-color: var(--accent-color);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.8rem;
    font-weight: 600;
}

/* =============================================
   PRINT STYLES
   ============================================= */
@media print {
    .sidebar,
    .main-navbar,
    .main-footer,
    .btn,
    .no-print {
        display: none !important;
    }

    .main-content {
        margin-left: 0 !important;
        padding: 0 !important;
    }

    .card {
        border: 1px solid #dee2e6 !important;
        box-shadow: none !important;
    }

    .table {
        font-size: 0.8rem;
    }
}