/* Global Styles */
:root {
    --primary-color: #4e73df;
    --secondary-color: #858796;
    --success-color: #1cc88a;
    --danger-color: #e74a3b;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

/* Dashboard Styles */
.sidebar {
    min-height: 100vh;
    background: linear-gradient(180deg, var(--primary-color) 0%, #224abe 100%);
}

.sidebar .nav-link {
    color: rgba(255, 255, 255, 0.8);
    padding: 1rem;
    margin: 0.2rem 0;
    border-radius: 0.35rem;
}

.sidebar .nav-link:hover {
    color: #fff;
    background-color: rgba(255, 255, 255, 0.1);
}

.sidebar .nav-link.active {
    color: #fff;
    background-color: rgba(255, 255, 255, 0.2);
}

/* Card Styles */
.stat-card {
    border-left: 4px solid;
    transition: transform 0.2s;
}

.stat-card:hover {
    transform: translateY(-3px);
}

.stat-card.primary {
    border-left-color: var(--primary-color);
}

.stat-card.success {
    border-left-color: var(--success-color);
}

.stat-card.warning {
    border-left-color: #f6c23e;
}

.stat-card.danger {
    border-left-color: var(--danger-color);
}

/* Table Styles */
.table th {
    background-color: #f8f9fc;
}

/* Form Styles */
.form-control:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.2rem rgba(78, 115, 223, 0.25);
}

/* Calendar Styles */
.calendar-event {
    background-color: var(--primary-color);
    color: white;
    padding: 0.2rem 0.5rem;
    border-radius: 0.25rem;
    margin: 0.1rem 0;
    font-size: 0.9rem;
}

/* Responsive Styles */
@media (max-width: 768px) {
    .sidebar {
        min-height: auto;
    }
    
    .stat-card {
        margin-bottom: 1rem;
    }
}