:root {
    --primary-color: #4f46e5;
    --secondary-color: #0f172a;
    --success-color: #10b981;
    --danger-color: #ef4444;
    --warning-color: #f59e0b;
    --info-color: #3b82f6;
    --light-gray: #f8fafc;
    --border-color: #e2e8f0;
}

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

body {
    background-color: #f1f5f9;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    color: #334155;
}

/* Layout */
.wrapper {
    min-height: 100vh;
}

.sidebar {
    width: 260px;
    min-height: 100vh;
    position: fixed;
    left: 0;
    top: 0;
    z-index: 100;
    background-color: #1e293b;
    border-right: 1px solid #334155;
    overflow-y: auto;
}

.sidebar-header {
    background-color: #0f172a;
    border-bottom: 1px solid #334155;
}

.sidebar .nav-link {
    color: #94a3b8;
    padding: 0.875rem 1rem;
    border-radius: 0.5rem;
    margin-bottom: 0.25rem;
    transition: all 0.2s ease;
    font-weight: 500;
}

.sidebar .nav-link:hover {
    background-color: #334155;
    color: #f8fafc;
}

.sidebar .nav-link.active {
    background-color: var(--primary-color);
    color: white;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
}

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

.main-content {
    margin-left: 260px;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    background-color: #f1f5f9;
}

.navbar {
    background-color: white;
    box-shadow: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    border-bottom: 1px solid var(--border-color);
}

.content-wrapper {
    flex: 1;
    overflow-y: auto;
    padding: 2rem !important;
}

/* Cards */
.card {
    background-color: white;
    border: 1px solid var(--border-color);
    border-radius: 0.75rem;
    box-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
    transition: none;
}

.card:hover {
    box-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
}

.card-header {
    border-bottom: 1px solid var(--border-color);
    background-color: white;
    border-radius: 0.75rem 0.75rem 0 0;
    padding: 1.25rem 1.5rem;
}

.card-title {
    font-weight: 600;
    color: #0f172a;
    margin-bottom: 0;
}

.card-body {
    padding: 1.5rem;
}

/* Forms */
.form-control,
.form-select {
    border-radius: 0.5rem;
    border: 1px solid var(--border-color);
    padding: 0.625rem 0.875rem;
    transition: border-color 0.15s ease-in-out, box-shadow 0.15s ease-in-out;
    background-color: white;
}

.form-control:focus,
.form-select:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.1);
}

.form-label {
    font-weight: 500;
    color: #334155;
    margin-bottom: 0.5rem;
    font-size: 0.95rem;
}

/* Buttons */
.btn {
    border-radius: 0.5rem;
    font-weight: 500;
    padding: 0.625rem 1.25rem;
    transition: all 0.2s ease;
    border: 1px solid transparent;
}

.btn-primary {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
    color: white;
    box-shadow: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
}

.btn-primary:hover {
    background-color: #4338ca; /* Indigo 700 */
    border-color: #4338ca;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
}

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

.btn-outline-primary:hover {
    background-color: #eef2ff;
    color: #4338ca;
    border-color: #4338ca;
}

.btn-secondary {
    background-color: white;
    border-color: #cbd5e1;
    color: #334155;
}

.btn-secondary:hover {
    background-color: #f8fafc;
    border-color: #94a3b8;
    color: #0f172a;
}

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

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

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

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

.btn-sm {
    padding: 0.375rem 0.75rem;
    font-size: 0.875rem;
}

/* Tables */
.table {
    font-size: 0.95rem;
    margin-bottom: 0;
    color: #334155;
}

.table thead th {
    background-color: #f8fafc;
    color: #475569;
    font-weight: 600;
    border-bottom: 1px solid var(--border-color);
    padding: 0.75rem 1.5rem;
    text-transform: uppercase;
    font-size: 0.75rem;
    letter-spacing: 0.05em;
}

.table tbody td {
    padding: 1rem 1.5rem;
    border-bottom: 1px solid var(--border-color);
    vertical-align: middle;
}

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

/* Badges */
.badge {
    padding: 0.35rem 0.65rem;
    border-radius: 9999px;
    font-weight: 600;
    font-size: 0.75rem;
    letter-spacing: 0.025em;
}

.bg-success {
    background-color: #dcfce7 !important;
    color: #166534;
}

.bg-danger {
    background-color: #fee2e2 !important;
    color: #991b1b;
}

.bg-warning {
    background-color: #fef3c7 !important;
    color: #92400e;
}

.bg-info {
    background-color: #dbeafe !important;
    color: #1e40af;
}

.bg-primary {
    background-color: #e0e7ff !important;
    color: #3730a3;
}

/* Modals */
.modal-content {
    border: none;
    border-radius: 1rem;
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
}

.modal-header {
    background-color: white;
    border-bottom: 1px solid var(--border-color);
    padding: 1.5rem;
}

.modal-title {
    font-weight: 600;
    color: #0f172a;
}

.modal-body {
    padding: 1.5rem;
}

.modal-footer {
    border-top: 1px solid var(--border-color);
    padding: 1.25rem 1.5rem;
    background-color: #f8fafc;
    border-radius: 0 0 1rem 1rem;
}

/* Alerts */
.alert {
    border: none;
    border-radius: 0.5rem;
    padding: 1rem 1.25rem;
    margin-bottom: 1.5rem;
    border-left: 4px solid transparent;
}

.alert-info {
    background-color: #eff6ff;
    color: #1e40af;
    border-left-color: #3b82f6;
}

.alert-success {
    background-color: #f0fdf4;
    color: #166534;
    border-left-color: #22c55e;
}

.alert-danger {
    background-color: #fef2f2;
    color: #991b1b;
    border-left-color: #ef4444;
}

.alert-warning {
    background-color: #fffbeb;
    color: #92400e;
    border-left-color: #f59e0b;
}

/* Utilities */
.text-muted {
    color: #64748b !important;
}

.border-bottom {
    border-bottom: 1px solid var(--border-color) !important;
}

/* Scrollbar */
::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}

::-webkit-scrollbar-track {
    background: transparent;
}

::-webkit-scrollbar-thumb {
    background: #cbd5e1;
    border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
    background: #94a3b8;
}

/* Dropdown */
.dropdown-menu {
    border: 1px solid var(--border-color);
    border-radius: 0.5rem;
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    padding: 0.5rem;
}

.dropdown-item {
    border-radius: 0.375rem;
    padding: 0.5rem 1rem;
    font-size: 0.9rem;
}

.dropdown-item:hover {
    background-color: #f1f5f9;
}

.dropdown-divider {
    border-color: var(--border-color);
    margin: 0.5rem 0;
}