/* Global Styles */
body {
    font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
    background-color: #f8f9fa;
    color: #2c3e50;
}

.bg-gradient-primary {
    background: linear-gradient(135deg, #007bff 0%, #0056b3 100%);
}

.bg-success {
    background: linear-gradient(135deg, #28a745 0%, #1e7e34 100%);
}

/* Cards */
.card {
    border: none;
    border-radius: 16px;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.card:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15) !important;
}

.card-header {
    border-radius: 16px 16px 0 0 !important;
    font-weight: 600;
}

/* Forms */
.form-control {
    border-radius: 10px;
    border: 2px solid #e9ecef;
    padding: 12px 16px;
    transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.form-control:focus {
    border-color: #007bff;
    box-shadow: 0 0 0 0.2rem rgba(0, 123, 255, 0.25);
}

.form-label {
    color: #495057;
    font-weight: 500;
}

.btn {
    border-radius: 10px;
    font-weight: 600;
    padding: 12px 24px;
    transition: all 0.2s ease;
}

.btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

/* Navbar */
.navbar {
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.navbar-brand {
    font-weight: 700;
    font-size: 1.5rem;
}

/* Sidebar (Offcanvas) */
.offcanvas {
    background: linear-gradient(180deg, #ffffff 0%, #f8f9fa 100%);
    box-shadow: 2px 0 10px rgba(0, 0, 0, 0.1);
}

.sidebar-user {
    padding: 1rem;
    background: #e9ecef;
    border-radius: 10px;
    margin-bottom: 1rem;
    text-align: center;
}

.nav-link {
    color: #495057 !important;
    padding: 12px 16px;
    border-radius: 8px;
    margin-bottom: 5px;
    transition: background-color 0.2s ease;
}

.nav-link:hover, .nav-link.active {
    background-color: #007bff !important;
    color: white !important;
}

/* Alerts */
.alert {
    border-radius: 10px;
    border: none;
    font-weight: 500;
}

/* Table */
.table {
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
}

.table th {
    background-color: #007bff;
    color: white;
    font-weight: 600;
    border: none;
}

.table td {
    border-color: #f8f9fa;
}

/* Icons */
.bi {
    margin-right: 8px;
}

/* Responsive Adjustments */
@media (max-width: 768px) {
    .container {
        padding: 0 15px;
    }
    .card-body {
        padding: 1.5rem;
    }
}

/* Animations */
.fade-in {
    animation: fadeIn 0.5s ease-in;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Hide main menu/footer if needed (from original Streamlit) */
/* #MainMenu, footer, header {
    visibility: hidden;
} */