/* Inventory Management System - Main Stylesheet */

:root {
    --primary-color: #2563eb;
    --secondary-color: #64748b;
    --success-color: #10b981;
    --warning-color: #f59e0b;
    --danger-color: #ef4444;
    --dark-color: #1f2937;
    --light-color: #f8fafc;
    --border-color: #e2e8f0;
    --text-color: #374151;
    --text-light: #6b7280;
    --sidebar-width: 250px;
}

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: #f5f7fa;
    color: var(--text-color);
    line-height: 1.6;
}

/* Layout */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.app-layout {
    display: flex;
    min-height: 100vh;
}

/* Sidebar */
.sidebar {
    width: var(--sidebar-width);
    background-color: white;
    border-right: 1px solid var(--border-color);
    position: fixed;
    height: 100vh;
    overflow-y: auto;
    z-index: 100;
}

.sidebar-header {
    padding: 20px;
    border-bottom: 1px solid var(--border-color);
    background-color: var(--primary-color);
    color: white;
}

.sidebar-header h2 {
    font-size: 1.2rem;
    font-weight: 600;
}

.sidebar-nav {
    padding: 20px 0;
}

.nav-item {
    margin-bottom: 5px;
}

.nav-link {
    display: block;
    padding: 12px 20px;
    color: var(--text-color);
    text-decoration: none;
    transition: all 0.3s ease;
    border-left: 3px solid transparent;
}

.nav-link:hover {
    background-color: #f8fafc;
    border-left-color: var(--primary-color);
    color: var(--primary-color);
}

.nav-link.active {
    background-color: #eff6ff;
    border-left-color: var(--primary-color);
    color: var(--primary-color);
    font-weight: 500;
}

/* Main Content */
.main-content {
    flex: 1;
    margin-left: var(--sidebar-width);
    min-height: 100vh;
}

.header {
    background-color: white;
    border-bottom: 1px solid var(--border-color);
    padding: 15px 30px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.header-left {
    display: flex;
    align-items: center;
    gap: 15px;
}

.header h1 {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--dark-color);
}

/* Hamburger Menu Button */
.hamburger-btn {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 30px;
    height: 24px;
    background: transparent;
    border: none;
    outline: none;
    cursor: pointer;
    padding: 0;
    margin: 0;
    z-index: 1001;
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
}

.hamburger-btn:focus {
    outline: none;
    box-shadow: none;
}

.hamburger-btn span {
    display: block;
    width: 100%;
    height: 3px;
    background-color: var(--text-color);
    border-radius: 2px;
    transition: all 0.3s ease;
    transform-origin: center;
}

.hamburger-btn.active span:nth-child(1) {
    transform: rotate(45deg) translate(6px, 6px);
}

.hamburger-btn.active span:nth-child(2) {
    opacity: 0;
}

.hamburger-btn.active span:nth-child(3) {
    transform: rotate(-45deg) translate(6px, -6px);
}

.user-info {
    display: flex;
    align-items: center;
    gap: 15px;
}

.user-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: var(--primary-color);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 600;
}

.page-content {
    padding: 30px;
}

/* Cards */
.card {
    background-color: white;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
    margin-bottom: 20px;
    overflow: hidden;
}

.card-header {
    padding: 20px 25px;
    border-bottom: 1px solid var(--border-color);
    background-color: #f8fafc;
}

.card-header h3 {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--dark-color);
}

.card-body {
    padding: 25px;
}

/* Tables */
.table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 20px;
}

.table th,
.table td {
    padding: 12px 15px;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.table th {
    background-color: #f8fafc;
    font-weight: 600;
    color: var(--dark-color);
}

.table tbody tr:hover {
    background-color: #f8fafc;
}

/* Sortable Table Headers */
.sortable {
    cursor: pointer;
    user-select: none;
    position: relative;
}

.sortable:hover {
    background-color: #e2e8f0;
}

.sort-indicator {
    margin-left: 5px;
    font-size: 12px;
    opacity: 0.6;
}

.sortable.sort-asc .sort-indicator:before {
    content: "↑";
}

.sortable.sort-desc .sort-indicator:before {
    content: "↓";
}

.sortable.sort-asc .sort-indicator,
.sortable.sort-desc .sort-indicator {
    opacity: 1;
}

/* DataTables Integration - Modern Dark Theme - More Aggressive Overrides */
.dataTables_wrapper {
    margin-top: 0;
    color: #94a3b8 !important; /* text-slate-400 */
}

/* Control Row Styling */
.dataTables_wrapper .top {
    padding: 1rem 1.5rem !important;
    display: flex;
    justify-content: space-between; /* This allows length-menu on the left and search on the right */
    align-items: center;
    border-bottom: 1px solid rgba(51, 65, 85, 0.5) !important;
    background-color: rgba(30, 41, 59, 0.3) !important;
}

.dataTables_wrapper .bottom {
    padding: 1rem 1.5rem !important;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-top: 1px solid rgba(51, 65, 85, 0.5) !important;
    background-color: rgba(30, 41, 59, 0.3) !important;
}

/* Inputs & Selects - Target more specifically to override DataTables Tailwind */
.dataTables_wrapper select,
.dataTables_wrapper input,
.dataTables_filter input,
.dataTables_length select {
    background-color: rgba(15, 23, 42, 0.8) !important; /* bg-slate-900/80 */
    border: 1px solid rgba(71, 85, 105, 0.6) !important; /* border-slate-700/60 */
    color: #f1f5f9 !important; /* text-slate-100 */
    border-radius: 0.75rem !important;
    padding: 0.5rem 0.875rem !important;
    font-size: 0.875rem !important;
    outline: none !important;
    transition: all 0.2s ease !important;
}

.dataTables_filter input {
    width: 250px !important;
    margin-left: 0.75rem !important;
}

.dataTables_wrapper select:focus,
.dataTables_wrapper input:focus {
    border-color: #6366f1 !important; /* indigo-500 */
    box-shadow: 0 0 0 2px rgba(99, 102, 241, 0.3) !important;
}

/* Info Text */
.dataTables_wrapper .dataTables_info,
.dataTables_wrapper p {
    font-size: 0.75rem !important;
    color: #64748b !important; /* text-slate-500 */
}

/* Pagination Buttons - Extremely Aggressive for Tailwind Plugin Compatibility */
.dataTables_wrapper .dataTables_paginate button,
.dataTables_wrapper .dataTables_paginate a,
.dataTables_wrapper .paginate_button {
    background-color: rgba(30, 41, 59, 0.5) !important;
    border: 1px solid rgba(71, 85, 105, 0.4) !important;
    color: #94a3b8 !important;
    border-radius: 0.625rem !important;
    padding: 0.4rem 0.85rem !important;
    margin: 0 0.125rem !important;
    cursor: pointer !important;
    font-size: 0.75rem !important;
    font-weight: 600 !important;
    transition: all 0.2s ease !important;
    display: inline-flex !important;
    align-items: center !important;
    justify-content: center !important;
}

/* Hover State */
.dataTables_wrapper .dataTables_paginate button:hover:not(.disabled),
.dataTables_wrapper .dataTables_paginate a:hover:not(.disabled),
.dataTables_wrapper .paginate_button:hover:not(.disabled) {
    background-color: #334155 !important;
    color: #ffffff !important;
    border-color: #475569 !important;
}

/* Active State */
.dataTables_wrapper .dataTables_paginate button.current,
.dataTables_wrapper .dataTables_paginate a.current,
.dataTables_wrapper .paginate_button.current,
.dataTables_wrapper .dataTables_paginate button.active,
.dataTables_wrapper .dataTables_paginate a.active {
    background-color: #4f46e5 !important; /* indigo-600 */
    color: #ffffff !important;
    border-color: #6366f1 !important;
}

/* Disabled State */
.dataTables_wrapper .dataTables_paginate .disabled,
.dataTables_wrapper .dataTables_paginate .paginate_button.disabled {
    opacity: 0.3 !important;
    background-color: rgba(15, 23, 42, 0.2) !important;
    cursor: not-allowed !important;
}

/* Adjust layout rows if they have extra padding from Tailwind plugin */
.grid.grid-cols-1.sm\:grid-cols-2 {
    gap: 1rem !important;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 8px 16px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    transition: all 0.3s ease;
    text-align: center;
}

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

.btn-primary:hover {
    background-color: #1d4ed8;
}

.btn-secondary {
    background-color: var(--secondary-color);
    color: white;
}

.btn-secondary:hover {
    background-color: #475569;
}

.btn-success {
    background-color: var(--success-color);
    color: white;
}

.btn-success:hover {
    background-color: #059669;
}

.btn-warning {
    background-color: var(--warning-color);
    color: white;
}

.btn-warning:hover {
    background-color: #d97706;
}

.btn-danger {
    background-color: var(--danger-color);
    color: white;
}

.btn-danger:hover {
    background-color: #dc2626;
}

.btn-sm {
    padding: 6px 12px;
    font-size: 12px;
}

/* Forms */
.form-group {
    margin-bottom: 15px;
}

.form-label {
    display: block;
    margin-bottom: 5px;
    font-weight: 500;
    color: var(--text-color);
}

.form-control {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    font-size: 14px;
    transition: border-color 0.3s ease;
}

.form-control:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.form-row {
    display: flex;
    gap: 15px;
}

.form-row .form-group {
    flex: 1;
}

/* Stats Cards */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.stat-card {
    background-color: white;
    padding: 25px;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
    text-align: center;
}

.stat-card h4 {
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 5px;
}

.stat-card p {
    color: var(--text-light);
    font-size: 0.9rem;
}

/* Badges */
.badge {
    display: inline-block;
    padding: 4px 8px;
    border-radius: 12px;
    font-size: 12px;
    font-weight: 500;
    text-align: center;
    white-space: nowrap;
    vertical-align: baseline;
}

.badge-primary {
    background-color: #0d6efd;
    color: #fff;
}

.badge-secondary {
    background-color: #6c757d;
    color: #fff;
}

.badge-success {
    background-color: #198754;
    color: #fff;
}

.badge-info {
    background-color: #0dcaf0;
    color: #fff;
}

.badge-warning {
    background-color: #ffc107;
    color: #000;
}

.badge-danger {
    background-color: #dc3545;
    color: #fff;
}

.badge-light {
    background-color: #f8f9fa;
    color: #000;
}

.badge-dark {
    background-color: #212529;
    color: #fff;
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0,0,0,0.5);
}

.modal-content {
    background-color: white;
    margin: 10% auto;
    padding: 0;
    border-radius: 8px;
    width: 90%;
    max-width: 500px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.3);
}

.modal-header {
    padding: 20px 25px;
    border-bottom: 1px solid var(--border-color);
}

.modal-header h3 {
    margin: 0;
    font-size: 1.2rem;
}

.modal-body {
    padding: 10px 25px 10px 25px;
}

.modal-footer {
    padding: 15px 25px;
    border-top: 1px solid var(--border-color);
    display: flex;
    justify-content: flex-end;
    gap: 10px;
}

/* Responsive */
@media (max-width: 768px) {
    .hamburger-btn {
        display: flex;
    }

    .sidebar {
        transform: translateX(-100%);
        transition: transform 0.3s ease;
    }

    .sidebar.show {
        transform: translateX(0);
    }

    .main-content {
        margin-left: 0;
    }

    .header {
        padding: 15px 20px;
    }

    .header-left {
        gap: 10px;
    }

    .header h1 {
        font-size: 1.3rem;
    }

    .page-content {
        padding: 20px 15px;
    }

    .form-row {
        flex-direction: column;
    }

    .stats-grid {
        grid-template-columns: 1fr;
    }
}

/* Authentication Pages */
.auth-page {
    min-height: 100vh;
    background: linear-gradient(135deg, var(--primary-color) 0%, #1e40af 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.auth-container {
    width: 100%;
    max-width: 400px;
}

.auth-card {
    background: white;
    border-radius: 12px;
    box-shadow: 0 10px 40px rgba(0,0,0,0.1);
    overflow: hidden;
}

.auth-header {
    padding: 30px 30px 20px;
    text-align: center;
    border-bottom: 1px solid var(--border-color);
}

.auth-header h2 {
    margin: 0 0 10px;
    font-size: 1.8rem;
    font-weight: 600;
    color: var(--dark-color);
}

.auth-header p {
    margin: 0;
    color: var(--text-light);
    font-size: 0.95rem;
}

.auth-form {
    padding: 30px;
}

.auth-footer {
    padding: 0 30px 20px;
    text-align: center;
}

.auth-footer a {
    color: var(--primary-color);
    text-decoration: none;
    font-size: 0.9rem;
}

.auth-footer a:hover {
    text-decoration: underline;
}

.auth-info {
    background: #f8fafc;
    padding: 20px 30px;
    border-top: 1px solid var(--border-color);
}

.auth-info h4 {
    margin: 0 0 15px;
    font-size: 1rem;
    font-weight: 600;
    color: var(--dark-color);
}

.demo-accounts {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.demo-account {
    font-size: 0.85rem;
    color: var(--text-light);
    font-family: monospace;
    background: white;
    padding: 8px 12px;
    border-radius: 4px;
    border: 1px solid var(--border-color);
}

/* User Menu */
.user-menu {
    position: relative;
    display: inline-block;
}

.user-menu-item {
    display: block;
    padding: 8px 12px;
    color: var(--text-color);
    text-decoration: none;
    font-size: 0.9rem;
    border-radius: 4px;
    transition: background-color 0.3s ease;
}

.user-menu-item:hover {
    background-color: #f8fafc;
}

/* Alerts */
.alert {
    padding: 12px 16px;
    border-radius: 6px;
    margin-bottom: 20px;
    font-size: 0.9rem;
}

.alert-success {
    background-color: #dcfce7;
    color: #166534;
    border: 1px solid #bbf7d0;
}

.alert-danger {
    background-color: #fee2e2;
    color: #991b1b;
    border: 1px solid #fecaca;
}

.alert-warning {
    background-color: #fef3c7;
    color: #92400e;
    border: 1px solid #fde68a;
}

.alert-info {
    background-color: #dbeafe;
    color: #1e40af;
    border: 1px solid #bfdbfe;
}

/* Button Block */
.btn-block {
    width: 100%;
    display: block;
}

/* Dropdown */
.dropdown {
    position: relative;
    display: inline-block;
}

.dropdown-toggle {
    white-space: nowrap;
}

.dropdown-toggle::after {
    display: inline-block;
    margin-left: 0.255em;
    vertical-align: 0.255em;
    content: "";
    border-top: 0.3em solid;
    border-right: 0.3em solid transparent;
    border-bottom: 0;
    border-left: 0.3em solid transparent;
}

.dropdown-menu {
    position: absolute;
    top: 100%;
    right: 0;
    z-index: 1000;
    display: none;
    min-width: 10rem;
    padding: 0.5rem 0;
    margin: 0.125rem 0 0;
    font-size: 14px;
    color: var(--text-color);
    text-align: left;
    list-style: none;
    background-color: #fff;
    background-clip: padding-box;
    border: 1px solid rgba(0,0,0,.15);
    border-radius: 0.25rem;
    box-shadow: 0 0.5rem 1rem rgba(0,0,0,.175);
}

.dropdown-menu.show {
    display: block;
}

.dropdown-menu li {
    display: block;
    width: 100%;
}

.dropdown-item {
    display: block;
    width: 100%;
    padding: 0.25rem 1rem;
    clear: both;
    font-weight: 400;
    color: var(--text-color);
    text-align: inherit;
    white-space: nowrap;
    background-color: transparent;
    border: 0;
    text-decoration: none;
    cursor: pointer;
}

.dropdown-item:hover, .dropdown-item:focus {
    color: #1e2125;
    background-color: #f8f9fa;
}
/* ── Select2 Dark Modern Overrides ── */
.select2-container--default .select2-selection--single {
    background-color: rgb(30 41 59 / 0.6) !important;
    border-color: rgb(51 65 85) !important;
    border-radius: 0.75rem !important;
    height: 42px !important;
    display: flex !important;
    align-items: center !important;
    transition: all 0.2s !important;
}
.select2-container--default .select2-selection--single .select2-selection__rendered {
    color: #f1f5f9 !important;
    padding-left: 1rem !important;
    font-size: 0.875rem !important;
}
.select2-container--default .select2-selection--single .select2-selection__placeholder {
    color: #94a3b8 !important;
}
.select2-container--default .select2-selection--single .select2-selection__arrow {
    height: 40px !important;
    right: 10px !important;
}
.select2-container--default .select2-selection--single .select2-selection__arrow b {
    border-color: #94a3b8 transparent transparent transparent !important;
}
.select2-container--default.select2-container--focus .select2-selection--single,
.select2-container--default.select2-container--open .select2-selection--single {
    border-color: #6366f1 !important;
    box-shadow: 0 0 0 2px rgb(99 102 241 / 0.3) !important;
}

.select2-container--default .select2-selection--multiple {
    background-color: rgb(30 41 59 / 0.6) !important;
    border-color: rgb(51 65 85) !important;
    border-radius: 0.75rem !important;
    min-height: 42px !important;
    padding: 2px 6px !important;
    transition: all 0.2s !important;
}
.select2-container--default .select2-selection--multiple .select2-selection__choice {
    background-color: rgb(99 102 241 / 0.2) !important;
    border: 1px solid rgb(99 102 241 / 0.3) !important;
    border-radius: 0.5rem !important;
    color: #a5b4fc !important;
    padding: 2px 8px !important;
    margin-top: 6px !important;
    font-size: 0.75rem !important;
    font-weight: 500 !important;
}
.select2-container--default .select2-selection--multiple .select2-selection__choice__remove {
    color: #818cf8 !important;
    margin-right: 5px !important;
    border-right: none !important;
}
.select2-container--default .select2-selection--multiple .select2-selection__choice__remove:hover {
    background-color: transparent !important;
    color: #ef4444 !important;
}
.select2-container--default.select2-container--focus .select2-selection--multiple {
    border-color: #6366f1 !important;
    box-shadow: 0 0 0 2px rgb(99 102 241 / 0.3) !important;
}

.select2-dropdown {
    background-color: #1e293b !important;
    border-color: #334155 !important;
    border-radius: 0.75rem !important;
    box-shadow: 0 25px 50px -12px rgb(0 0 0 / 0.5) !important;
    overflow: hidden !important;
    z-index: 9999 !important;
}
.select2-container--default .select2-results__option--highlighted[aria-selected] {
    background-color: #4f46e5 !important;
}
.select2-container--default .select2-results__option[aria-selected="true"] {
    background-color: rgb(79 70 229 / 0.2) !important;
    color: #a5b4fc !important;
}
.select2-results__option {
    padding: 8px 12px !important;
    font-size: 0.875rem !important;
    color: #cbd5e1 !important;
}
.select2-search--dropdown {
    padding: 8px !important;
}
.select2-container--default .select2-search--dropdown .select2-search__field {
    background-color: #0f172a !important;
    border-color: #334155 !important;
    border-radius: 0.5rem !important;
    color: white !important;
    padding: 6px 10px !important;
    outline: none !important;
}
.select2-container--default .select2-search--dropdown .select2-search__field:focus {
    border-color: #6366f1 !important;
}
.select2-container--default .select2-results__message {
    color: #64748b !important;
    font-style: italic !important;
}