body {
    background-color: #f8f9fa;
}

:root {
    --primary-color: #38b6ff;
    --primary-hover: #2da8e8;
    --deep-blue: #0f172a;
}

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

.card {
    border-radius: 10px;
    box-shadow: 0 0 20px rgba(0,0,0,0.1);
}

.btn-primary {
    background-color: var(--primary-color);
    border: none;
}

.btn-primary:hover {
    background-color: var(--primary-hover);
}

.table-responsive {
    border-radius: 10px;
    overflow: hidden;
}

.alert-warning {
    background-color: #fff3cd;
    border-left: 4px solid #ffc107;
}

/* Navbar styling */
.navbar.bg-dark {
    background-color: var(--deep-blue) !important;
}

/* Sidebar styling */
.offcanvas {
    width: 280px;
    background-color: var(--deep-blue) !important;
}

.nav-link {
    color: #e9ecef !important;
    padding: 12px 20px;
    margin: 4px 0;
    border-radius: 8px;
    transition: all 0.3s;
}

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

.nav-link.active {
    background-color: var(--primary-color);
    color: white !important;
}

/* Form styling */
.form-control:focus, .form-select:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.2rem rgba(56, 182, 255, 0.25);
}