/* Global Styles */
:root {
    --primary-color: #4e73df;
    --secondary-color: #858796;
    --success-color: #1cc88a;
    --info-color: #36b9cc;
    --warning-color: #f6c23e;
    --danger-color: #e74a3b;
    --light-color: #f8f9fc;
    --dark-color: #5a5c69;
    --sidebar-width: 250px;
    --sidebar-collapsed-width: 70px;
    --topbar-height: 60px;
}

.dark-mode {
    --primary-color: #4e73df;
    --secondary-color: #858796;
    --success-color: #1cc88a;
    --info-color: #36b9cc;
    --warning-color: #f6c23e;
    --danger-color: #e74a3b;
    --light-color: #2a2d3b;
    --dark-color: #f8f9fc;
    --bg-color: #1e1e2d;
    --card-bg: #27293d;
    --text-color: #f8f9fc;
}

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: #f8f9fc;
    overflow-x: hidden;
}

body.dark-mode {
    background-color: var(--bg-color);
    color: var(--text-color);
}

/* Login Page */
.login-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    padding: 20px;
}

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

.login-box {
    background: white;
    border-radius: 10px;
    padding: 40px;
    box-shadow: 0 10px 40px rgba(0,0,0,0.2);
}

.dark-mode .login-box {
    background: var(--card-bg);
    color: var(--text-color);
}

.login-header {
    text-align: center;
    margin-bottom: 30px;
}

.login-header h2 {
    color: var(--primary-color);
    margin-bottom: 10px;
}

.login-header i {
    color: var(--warning-color);
}

.login-footer {
    text-align: center;
    margin-top: 20px;
    font-size: 0.85rem;
    color: var(--secondary-color);
}

/* Dashboard Layout */
.dashboard-wrapper {
    display: flex;
    min-height: 100vh;
}

/* Sidebar */
.sidebar {
    width: var(--sidebar-width);
    background: linear-gradient(180deg, var(--primary-color) 0%, #224abe 100%);
    color: white;
    position: fixed;
    height: 100vh;
    transition: all 0.3s;
    z-index: 1000;
    overflow-y: auto;
}

.sidebar.collapsed {
    width: var(--sidebar-collapsed-width);
}

.sidebar-header {
    padding: 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: 1px solid rgba(255,255,255,0.1);
}

.sidebar-header h4 {
    margin: 0;
    font-weight: 700;
}

.toggle-btn {
    background: none;
    border: none;
    color: white;
    font-size: 1.2rem;
    cursor: pointer;
}

.sidebar-menu {
    list-style: none;
    padding: 0;
    margin-top: 20px;
}

.sidebar-menu li {
    margin: 5px 0;
}

.sidebar-menu a {
    display: flex;
    align-items: center;
    padding: 15px 20px;
    color: rgba(255,255,255,0.8);
    text-decoration: none;
    transition: all 0.3s;
    border-left: 3px solid transparent;
}

.sidebar-menu a:hover,
.sidebar-menu a.active {
    color: white;
    background: rgba(255,255,255,0.1);
    border-left-color: var(--warning-color);
}

.sidebar-menu i {
    width: 30px;
    font-size: 1.1rem;
}

/* Main Content */
.main-content {
    flex: 1;
    margin-left: var(--sidebar-width);
    transition: all 0.3s;
}

.sidebar.collapsed + .main-content {
    margin-left: var(--sidebar-collapsed-width);
}

.navbar {
    height: var(--topbar-height);
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.dark-mode .navbar {
    background-color: var(--card-bg) !important;
    border-bottom: 1px solid rgba(255,255,255,0.1);
}

.dark-mode .navbar-light .navbar-brand {
    color: var(--text-color);
}

.content-area {
    padding: 25px;
    min-height: calc(100vh - var(--topbar-height));
}

/* Cards */
.card {
    border: none;
    border-radius: 10px;
    box-shadow: 0 0 15px rgba(0,0,0,0.05);
    margin-bottom: 25px;
}

.dark-mode .card {
    background-color: var(--card-bg);
    color: var(--text-color);
}

.card-header {
    background: transparent;
    border-bottom: 1px solid rgba(0,0,0,0.05);
    padding: 20px;
    font-weight: 600;
}

.dark-mode .card-header {
    border-bottom-color: rgba(255,255,255,0.1);
}

/* Stats Cards */
.stats-card {
    border-left: 4px solid;
    transition: transform 0.2s;
}

.stats-card:hover {
    transform: translateY(-5px);
}

.stats-card.primary { border-left-color: var(--primary-color); }
.stats-card.success { border-left-color: var(--success-color); }
.stats-card.info { border-left-color: var(--info-color); }
.stats-card.warning { border-left-color: var(--warning-color); }

.stats-card .card-body {
    padding: 20px;
}

.stats-card .icon {
    font-size: 2rem;
    opacity: 0.3;
}

.stats-card .number {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--dark-color);
}

.dark-mode .stats-card .number {
    color: var(--text-color);
}

.stats-card .label {
    color: var(--secondary-color);
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* Tables */
.table-container {
    background: white;
    border-radius: 10px;
    box-shadow: 0 0 15px rgba(0,0,0,0.05);
    overflow: hidden;
}

.dark-mode .table-container {
    background: var(--card-bg);
}

.table thead th {
    background-color: #f8f9fc;
    border-bottom: 2px solid #e3e6f0;
    font-weight: 600;
    text-transform: uppercase;
    font-size: 0.8rem;
    letter-spacing: 0.5px;
}

.dark-mode .table thead th {
    background-color: rgba(0,0,0,0.2);
    border-bottom-color: rgba(255,255,255,0.1);
    color: var(--text-color);
}

.dark-mode .table {
    color: var(--text-color);
}

/* Status Badges */
.badge {
    padding: 8px 12px;
    font-weight: 500;
}

.badge-success { background-color: var(--success-color); }
.badge-warning { background-color: var(--warning-color); color: #000; }
.badge-danger { background-color: var(--danger-color); }
.badge-info { background-color: var(--info-color); }
.badge-secondary { background-color: var(--secondary-color); }

/* Buttons */
.btn {
    border-radius: 6px;
    font-weight: 500;
    padding: 8px 16px;
}

.btn-icon {
    width: 32px;
    height: 32px;
    padding: 0;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 6px;
}

/* Forms */
.form-control, .form-select {
    border-radius: 6px;
    border: 1px solid #d1d3e2;
    padding: 10px 15px;
}

.dark-mode .form-control,
.dark-mode .form-select {
    background-color: rgba(0,0,0,0.2);
    border-color: rgba(255,255,255,0.1);
    color: var(--text-color);
}

.dark-mode .form-control:focus,
.dark-mode .form-select:focus {
    background-color: rgba(0,0,0,0.3);
    color: var(--text-color);
}

/* Pagination */
.pagination-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px;
    background: white;
    border-top: 1px solid #e3e6f0;
}

.dark-mode .pagination-container {
    background: var(--card-bg);
    border-top-color: rgba(255,255,255,0.1);
}

/* Charts */
.chart-container {
    position: relative;
    height: 300px;
    padding: 20px;
}

/* Activity Log */
.activity-item {
    padding: 15px;
    border-left: 3px solid var(--primary-color);
    margin-bottom: 15px;
    background: #f8f9fc;
    border-radius: 0 8px 8px 0;
}

.dark-mode .activity-item {
    background: rgba(0,0,0,0.2);
}

.activity-item .time {
    font-size: 0.8rem;
    color: var(--secondary-color);
}

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

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

/* Loading Overlay */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(255,255,255,0.8);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
}

.dark-mode .loading-overlay {
    background: rgba(0,0,0,0.8);
}

/* Responsive */
@media (max-width: 768px) {
    .sidebar {
        transform: translateX(-100%);
    }

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

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

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

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

::-webkit-scrollbar-track {
    background: #f1f1f1;
}

.dark-mode ::-webkit-scrollbar-track {
    background: var(--bg-color);
}

::-webkit-scrollbar-thumb {
    background: #888;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #555;
}

/* Modal Dark Mode */
.dark-mode .modal-content {
    background-color: var(--card-bg);
    color: var(--text-color);
}

.dark-mode .modal-header,
.dark-mode .modal-footer {
    border-color: rgba(255,255,255,0.1);
}

.dark-mode .btn-close {
    filter: invert(1);
}

/* Dropdown Dark Mode */
.dark-mode .dropdown-menu {
    background-color: var(--card-bg);
    border-color: rgba(255,255,255,0.1);
}

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

.dark-mode .dropdown-item:hover {
    background-color: rgba(255,255,255,0.1);
}

.dark-mode .dropdown-divider {
    border-color: rgba(255,255,255,0.1);
}