:root {
    --primary-color: #4361ee;
    --secondary-color: #3f37c9;
    --success-color: #4cc9f0;
    --danger-color: #f72585;
    --warning-color: #f8961e;
    --info-color: #4895ef;
    --dark-bg: #121212;
    --card-bg: #1e1e1e;
    --sidebar-bg: #1a1a1a;
    --text-primary: #e0e0e0;
    --text-secondary: #a0a0a0;
    --border-color: #333333;
}

body {
    background-color: var(--dark-bg);
    color: var(--text-primary);
    font-family: 'Inter', 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    overflow-x: hidden;
}

/* Glassmorphism utilities */
.glass-card {
    background: rgba(30, 30, 30, 0.7);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 12px;
    box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.3);
}

/* Layout */
#wrapper {
    display: flex;
    width: 100%;
    align-items: stretch;
}

/* Sidebar */
#sidebar {
    min-width: 250px;
    max-width: 250px;
    background-color: var(--sidebar-bg);
    color: var(--text-primary);
    transition: all 0.3s;
    min-height: 100vh;
    border-right: 1px solid var(--border-color);
}

#sidebar.active {
    min-width: 80px;
    max-width: 80px;
}

#sidebar .sidebar-header {
    padding: 20px;
    background: var(--primary-color);
    text-align: center;
}

#sidebar ul.components {
    padding: 20px 0;
}

#sidebar ul li a {
    padding: 15px 20px;
    font-size: 1.1em;
    display: block;
    color: var(--text-primary);
    text-decoration: none;
    transition: 0.2s;
}

#sidebar ul li a:hover {
    color: #fff;
    background: var(--primary-color);
}

#sidebar ul li.active > a,
a[aria-expanded="true"] {
    color: #fff;
    background: var(--secondary-color);
}

#sidebar.active .sidebar-text {
    display: none;
}

#sidebar.active .sidebar-header h3 {
    display: none;
}
#sidebar.active .sidebar-header {
    padding: 20px 10px;
}

/* Content */
#content {
    width: 100%;
    padding: 20px;
    min-height: 100vh;
    transition: all 0.3s;
    display: flex;
    flex-direction: column;
}

/* Footer */
.footer-bar {
    font-size: 0.9em;
    border-top: 1px solid var(--border-color);
    margin-top: auto;
}
.footer-bar .small, .footer-bar small {
    font-size: 0.82rem;
}
@media print {
    .footer-bar { border-top: 1px solid #888; background: transparent !important; }
    .footer-bar .btn, .footer-bar #sidebarCollapse, .footer-bar nav, .footer-bar #sidebar {
        display: none !important;
    }
}

.navbar {
    padding: 15px 10px;
    background: var(--card-bg);
    border: none;
    border-radius: 0;
    margin-bottom: 20px;
    box-shadow: 1px 1px 3px rgba(0, 0, 0, 0.1);
}

/* Cards */
.card {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 10px;
}
.card-header {
    background-color: rgba(0,0,0,0.2);
    border-bottom: 1px solid var(--border-color);
    font-weight: 600;
}

/* DataTables Dark Theme Adjustments */
table.dataTable {
    color: var(--text-primary) !important;
}
table.dataTable tbody tr {
    background-color: var(--card-bg) !important;
}
table.dataTable tbody tr:hover {
    background-color: rgba(255,255,255,0.05) !important;
}
.dataTables_wrapper .dataTables_length, .dataTables_wrapper .dataTables_filter, .dataTables_wrapper .dataTables_info, .dataTables_wrapper .dataTables_processing, .dataTables_wrapper .dataTables_paginate {
    color: var(--text-primary) !important;
}
.dataTables_wrapper .dataTables_paginate .paginate_button {
    color: var(--text-primary) !important;
}
.dataTables_wrapper .dataTables_paginate .paginate_button.current, .dataTables_wrapper .dataTables_paginate .paginate_button.current:hover {
    color: #fff !important;
    background: var(--primary-color) !important;
    border-color: var(--primary-color) !important;
}

/* Form Controls */
.form-control, .form-select {
    background-color: #2a2a2a;
    border: 1px solid var(--border-color);
    color: var(--text-primary);
}
.form-control:focus, .form-select:focus {
    background-color: #333;
    color: #fff;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.25rem rgba(67, 97, 238, 0.25);
}

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

/* Login Page */
.login-body {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100vh;
    background: linear-gradient(135deg, var(--dark-bg) 0%, #1a1a2e 100%);
}
.login-container {
    width: 100%;
    max-width: 400px;
    padding: 40px;
}