:root {
    --accent: #63d6e6;
    --brand: #103e69;
    --placeholder: #797E8A;
    --black: #000000;
    --white: #FFFFFF;
    --charcoal: #363533;
    --dark: #1B2431;
    
    --primary: var(--brand);
    --secondary: var(--accent);
    --text: var(--charcoal);
    --bg: #f5f7fa;
    --card-bg: var(--white);
    --header-bg: var(--dark);
    --sidebar-bg: var(--dark);
    --border: #e0e0e0;
    
    --success: #28a745;
    --info: #17a2b8;
    --warning: #ffc107;
    --danger: #dc3545;
    
    --font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

[data-theme="dark"] {
    --text: #e0e0e0;
    --bg: #121212;
    --card-bg: #1e1e1e;
    --header-bg: #0d0d0d;
    --sidebar-bg: #0d0d0d;
    --border: #333;
}

* {
    margin: 0;
    padding: 5;
    box-sizing: border-box;
}

body {
    font-family: var(--font-family);
    background-color: var(--bg);
    color: var(--text);
    transition: background-color 0.3s, color 0.3s;
}

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

/* Header Styles */
.app-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 1.5rem;
    background-color: var(--header-bg);
    color: var(--white);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    position: sticky;
    top: 0;
    height: 100px;
    z-index: 100;
}

.header-left {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.sidebar-toggle {
    background: none;
    border: none;
    color: var(--white);
    font-size: 1.25rem;
    cursor: pointer;
    display: none;
}

.user-dropdown {
    position: relative;
    display: inline-block;
}

.user-btn {
    background: none;
    border: none;
    color: var(--white);
    display: flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
    padding: 0.5rem 1rem;
    border-radius: 4px;
    transition: background-color 0.2s;
}

.user-btn:hover {
    background-color: rgba(255, 255, 255, 0.1);
}

.dropdown-content {
    display: none;
    position: absolute;
    right: 0;
    background-color: var(--card-bg);
    min-width: 160px;
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.1);
    z-index: 1;
    border-radius: 4px;
    overflow: hidden;
}

.dropdown-content a {
    color: var(--text);
    padding: 0.75rem 1rem;
    text-decoration: none;
    display: block;
    transition: background-color 0.2s;
}

.dropdown-content a:hover {
    background-color: rgba(0, 0, 0, 0.1);
}

.user-dropdown:hover .dropdown-content {
    display: block;
}

.theme-switch button {
    background: none;
    border: none;
    color: var(--white);
    font-size: 1.25rem;
    cursor: pointer;
    padding: 0.5rem;
    border-radius: 50%;
    transition: background-color 0.2s;
}

.theme-switch button:hover {
    background-color: rgba(255, 255, 255, 0.1);
}

/* Sidebar Styles */
.app-sidebar {
    width: 250px;
    background-color: var(--sidebar-bg);
    color: var(--white);
    display: flex;
    flex-direction: column;
    transition: width 0.3s;
    height: 100vh;
    position: fixed;
    z-index: 1000;
}

.sidebar-header {
    padding: 1.5rem;
    display: flex;
    height: 100px;
    align-items: center;
    gap: 0.75rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.sidebar-logo {
    width: auto;
    height: auto;
    object-fit: contain;
}

.company-name {
    font-weight: 600;
    white-space: nowrap;
}

.sidebar-nav {
    flex: 1;
    overflow-y: auto;
    padding: 1rem 0;
}

.sidebar-nav ul {
    list-style: none;
}

.sidebar-nav li {
    margin-bottom: 0.25rem;
}

.sidebar-nav a {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1.5rem;
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: all 0.2s;
    white-space: nowrap;
}

.sidebar-nav a:hover {
    background-color: rgba(255, 255, 255, 0.1);
    color: var(--white);
}

.sidebar-nav a i {
    width: 20px;
    text-align: center;
}

.sidebar-nav .active a {
    background-color: var(--accent);
    color: var(--dark);
    font-weight: 500;
}

.nav-section {
    padding: var(--spacing-md) var(--spacing-lg);
    font-size: var(--font-size-sm);
    text-transform: uppercase;
    letter-spacing: 1px;
    color: rgba(255, 255, 255, 0.9);
    margin-top: var(--spacing-md);
    font-weight: var(--font-weight-bold);
    cursor: pointer;
    user-select: none;
    display: flex;
    align-items: center;
    justify-content: space-between;
    transition: all var(--transition-fast);
    border-radius: var(--border-radius);
}

.sidebar-footer {
    padding: 1rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.collapse-sidebar {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    background: none;
    border: none;
    color: rgba(255, 255, 255, 0.7);
    cursor: pointer;
    width: 100%;
    padding: 0.5rem;
    border-radius: 4px;
    transition: background-color 0.2s;
}

.collapse-sidebar:hover {
    background-color: rgba(255, 255, 255, 0.1);
    color: var(--white);
}

/* Collapsed sidebar state */
.app-sidebar.collapsed {
    width: 70px;
}

.app-sidebar.collapsed .company-name,
.app-sidebar.collapsed .nav-section,
.app-sidebar.collapsed .collapse-sidebar span,
.app-sidebar.collapsed .sidebar-nav a span {
    display: none;
}

.app-sidebar.collapsed .sidebar-nav a {
    justify-content: center;
    padding: 0.75rem;
}

.app-sidebar.collapsed .sidebar-header {
    justify-content: center;
    padding: 1.5rem 0.75rem;
}

/* Main Content Styles */
.main-content {
    flex: 1;
    margin-left: 250px;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    transition: margin-left 0.3s;
}

.app-sidebar.collapsed ~ .main-content {
    margin-left: 70px;
}

.content-area {
    flex: 1;
    padding: 1.5rem;
}

.content-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
}

.content-title {
    font-size: 1.75rem;
    font-weight: 600;
    color: var(--text);
}

.content-actions {
    display: flex;
    gap: 0.75rem;
}

/* Card Styles */
.card {
    background-color: var(--card-bg);
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
    margin-bottom: 1.5rem;
    border: 1px solid var(--border);
}

.card-header {
    padding: 1rem 1.5rem;
    border-bottom: 1px solid var(--border);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.card-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin: 0;
}

.card-body {
    padding: 1.5rem;
}

/* Form Styles */
.form-group {
    margin-bottom: 1rem;
}

.form-label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
}

.form-control, .form-select {
    width: 100%;
    padding: 0.5rem 0.75rem;
    border: 1px solid var(--border);
    border-radius: 4px;
    background-color: var(--card-bg);
    color: var(--text);
    transition: border-color 0.2s;
}

.form-control:focus, .form-select:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 2px rgba(99, 214, 230, 0.2);
}

.input-group {
    display: flex;
}

.input-group .form-control {
    border-top-right-radius: 0;
    border-bottom-right-radius: 0;
}

.input-group button {
    border-top-left-radius: 0;
    border-bottom-left-radius: 0;
}

/* Button Styles */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    border-radius: 4px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
    border: 1px solid transparent;
}

.btn-sm {
    padding: 0.25rem 0.5rem;
    font-size: 0.875rem;
}

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

.btn-primary:hover {
    background-color: #0c3660;
    border-color: #0c3660;
}

.btn-outline-secondary {
    background-color: transparent;
    color: var(--placeholder);
    border-color: var(--border);
}

.btn-outline-secondary:hover {
    background-color: rgba(0, 0, 0, 0.05);
}

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

.btn-success:hover {
    background-color: #218838;
    border-color: #1e7e34;
}

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

.btn-danger:hover {
    background-color: #c82333;
    border-color: #bd2130;
}

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

.btn-info:hover {
    background-color: #138496;
    border-color: #117a8b;
}

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

.btn-warning:hover {
    background-color: #e0a800;
    border-color: #d39e00;
}

.btn-link {
    background: none;
    border: none;
    color: var(--primary);
    text-decoration: underline;
    padding: 0;
}

.btn-link:hover {
    color: #0c3660;
    text-decoration: none;
}

.btn-group {
    display: flex;
    gap: 0.25rem;
}

/* Table Styles */
.table-responsive {
    overflow-x: auto;
}

.data-table {
    width: 100%;
    border-collapse: collapse;
}

.data-table th, .data-table td {
    padding: 0.75rem;
    text-align: left;
    border-bottom: 1px solid var(--border);
}

.data-table th {
    font-weight: 900;
    background-color: rgba(0, 0, 0, 0.02);
}

.data-table tr:hover {
    background-color: rgba(0, 0, 0, 0.02);
}

.item-thumbnail {
    width: 40px;
    height: 40px;
    object-fit: cover;
    border-radius: 4px;
    margin-right: 0.5rem;
    vertical-align: middle;
}

/* Badge Styles */
.badge {
    display: inline-block;
    padding: 0.25rem 0.5rem;
    font-size: 0.75rem;
    font-weight: 600;
    line-height: 1;
    text-align: center;
    white-space: nowrap;
    vertical-align: baseline;
    border-radius: 0.25rem;
}

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

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

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

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

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

/* Alert Styles */
.alert {
    padding: 0.75rem 1rem;
    margin-bottom: 1rem;
    border-radius: 4px;
}

.alert-danger {
    background-color: rgba(220, 53, 69, 0.1);
    border-left: 4px solid var(--danger);
    color: var(--danger);
}

.alert-info {
    background-color: rgba(23, 162, 184, 0.1);
    border-left: 4px solid var(--info);
    color: var(--info);
}

.alert-success {
    background-color: rgba(40, 167, 69, 0.1);
    border-left: 4px solid var(--success);
    color: var(--success);
}

/* Text Utilities */
.text-center {
    text-align: center;
}

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

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

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

.text-muted {
    color: var(--placeholder);
}

/* Dashboard Specific Styles */
.dashboard-container {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.dashboard-summary {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
}

.summary-card {
    background-color: var(--card-bg);
    border-radius: 8px;
    padding: 1.5rem;
    display: flex;
    align-items: center;
    gap: 1rem;
    border: 1px solid var(--border);
}

.card-icon {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: white;
}

.card-content h3 {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--placeholder);
    margin-bottom: 0.25rem;
}

.card-content p {
    font-size: 1.5rem;
    font-weight: 600;
    margin: 0;
}

.dashboard-charts {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 1.5rem;
}

.chart-card {
    background-color: var(--card-bg);
    border-radius: 8px;
    padding: 1.5rem;
    border: 1px solid var(--border);
}

.chart-container {
    position: relative;
    height: 300px;
    width: 100%;
}

.dashboard-tables {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 1.5rem;
}

.table-card {
    background-color: var(--card-bg);
    border-radius: 8px;
    padding: 1.5rem;
    border: 1px solid var(--border);
}

.activities-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.activity-item {
    display: flex;
    gap: 1rem;
    padding: 0.75rem;
    border-radius: 4px;
    background-color: rgba(0, 0, 0, 0.02);
}

.activity-icon {
    font-size: 1.25rem;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background-color: rgba(0, 0, 0, 0.05);
}

.activity-content {
    flex: 1;
}

.activity-content p {
    margin-bottom: 0.25rem;
}

.activity-details {
    font-size: 0.875rem;
}

/* Login Page Styles */
.login-page {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    background-color: var(--bg);
}

.login-container {
    width: 100%;
    max-width: 400px;
    padding: 2rem;
    background-color: var(--card-bg);
    border-radius: 8px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    border: 1px solid var(--border);
}

.login-header {
    text-align: center;
    margin-bottom: 2rem;
}

.login-logo {
    width: 80px;
    height: 80px;
    object-fit: contain;
    margin-bottom: 1rem;
}

.login-form .form-group {
    margin-bottom: 1.5rem;
}

.login-form label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
}

.login-form input {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--border);
    border-radius: 4px;
    background-color: var(--card-bg);
    color: var(--text);
}

.login-form button {
    width: 100%;
    padding: 0.75rem;
    margin-bottom: 1rem;
}

.login-links {
    text-align: center;
    margin-top: 1rem;
}

.login-links a {
    color: var(--primary);
    text-decoration: none;
}

.login-links a:hover {
    text-decoration: underline;
}

/* Responsive Styles */
@media (max-width: 992px) {
    .app-sidebar {
        width: 70px;
    }
    
    .app-sidebar .company-name,
    .app-sidebar .nav-section,
    .app-sidebar .collapse-sidebar span,
    .app-sidebar .sidebar-nav a span {
        display: none;
    }
    
    .app-sidebar .sidebar-nav a {
        justify-content: center;
        padding: 0.75rem;
    }
    
    .app-sidebar .sidebar-header {
        justify-content: center;
        padding: 1.5rem 0.75rem;
    }
    
    .main-content {
        margin-left: 70px;
    }
    
    .sidebar-toggle {
        display: block;
    }
}

@media (max-width: 768px) {
    .dashboard-summary {
        grid-template-columns: 1fr 1fr;
    }
    
    .dashboard-charts, .dashboard-tables {
        grid-template-columns: 1fr;
    }
    
    .content-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 1rem;
    }
}

@media (max-width: 576px) {
    .dashboard-summary {
        grid-template-columns: 1fr;
    }
    
    .filter-form .row {
        flex-direction: column;
    }
    
    .filter-form .col-md-2 {
        width: 100%;
    }
}