/* Common styles */
body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    line-height: 1.5;
    color: #333;
}

/* Navbar customization */
.navbar {
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.navbar-brand {
    font-weight: bold;
}

/* Card styles */
.card {
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    border: none;
    margin-bottom: 1rem;
}

.card-header {
    background-color: #f8f9fa;
    border-bottom: 1px solid #eee;
}

/* Table styles */
.table {
    margin-bottom: 0;
}

.table th {
    border-top: none;
    background-color: #f8f9fa;
}

/* Form styles */
.form-control:focus {
    border-color: #80bdff;
    box-shadow: 0 0 0 0.2rem rgba(0, 123, 255, 0.25);
}

/* Button styles */
.btn {
    font-weight: 500;
}

.btn-primary {
    background-color: #007bff;
    border-color: #007bff;
}

.btn-primary:hover {
    background-color: #0069d9;
    border-color: #0062cc;
}

/* Alert styles */
.alert {
    border: none;
    border-radius: 4px;
    margin-bottom: 1rem;
}

.alert-success {
    background-color: #d4edda;
    color: #155724;
}

.alert-danger {
    background-color: #f8d7da;
    color: #721c24;
}

.alert-warning {
    background-color: #fff3cd;
    color: #856404;
}

/* Loading spinner */
.spinner-border {
    width: 1rem;
    height: 1rem;
    border-width: 0.2em;
}

/* Custom utilities */
.cursor-pointer {
    cursor: pointer;
}

.text-muted {
    color: #6c757d !important;
}

.bg-light {
    background-color: #f8f9fa !important;
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .container {
        padding-left: 1rem;
        padding-right: 1rem;
    }
}