/* Modern color scheme */
:root {
    --primary-color: #4a90e2;
    --secondary-color: #f5f6fa;
    --success-color: #2ecc71;
    --danger-color: #e74c3c;
    --warning-color: #f1c40f;
    --text-color: #2c3e50;
    --border-color: #e0e0e0;
}

/* Base styles */
body {
    background-color: var(--secondary-color);
    color: var(--text-color);
    font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
}

/* Card styling */
.card {
    border: none;
    border-radius: 12px;
    box-shadow: 0 2px 15px rgba(0, 0, 0, 0.05);
    margin-bottom: 1.5rem;
    transition: transform 0.2s ease;
}

.card:hover {
    transform: translateY(-2px);
}

.card-header {
    background-color: white;
    border-bottom: 1px solid var(--border-color);
    padding: 1.25rem;
    border-radius: 12px 12px 0 0 !important;
}

.card-body {
    padding: 1.5rem;
}

/* Button styling */
.btn {
    border-radius: 8px;
    padding: 0.5rem 1rem;
    font-weight: 500;
    transition: all 0.2s ease;
}

.btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

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

/* Table base styling */
.table {
    background: white;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 2px 15px rgba(0, 0, 0, 0.05);
}

.table thead th {
    background-color: var(--secondary-color);
    border-bottom: 2px solid var(--border-color);
    color: var(--text-color);
    font-weight: 600;
    padding: 1rem;
}

.table tbody td {
    padding: 1rem;
    vertical-align: middle;
}

/* Modal styling */
.modal-content {
    border: none;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

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

.modal-footer {
    border-top: 1px solid var(--border-color);
    padding: 1.5rem;
}

/* Toast notifications */
.toast {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 1050;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

/* Custom scrollbar */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--secondary-color);
}

::-webkit-scrollbar-thumb {
    background: #cbd5e0;
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: #a0aec0;
}

/* Common animations */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(-10px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-5px); }
    75% { transform: translateX(5px); }
}

/* Status indicators */
.table-success {
    background-color: rgba(46, 204, 113, 0.1) !important;
}

.table-danger {
    background-color: rgba(231, 76, 60, 0.1) !important;
}

.table-info {
    background-color: rgba(52, 152, 219, 0.1) !important;
}

/* Actions bar */
.actions-bar {
    background: white;
    padding: 1rem;
    border-radius: 12px;
    box-shadow: 0 2px 15px rgba(0, 0, 0, 0.05);
    margin-bottom: 2rem;
    display: flex;
    justify-content: flex-end;
    gap: 1rem;
}

/* Header styling */
h1 {
    color: var(--text-color);
    font-weight: 600;
    margin-bottom: 2rem;
    text-align: center;
    position: relative;
}

h1::after {
    content: '';
    display: block;
    width: 60px;
    height: 4px;
    background: var(--primary-color);
    margin: 0.5rem auto;
    border-radius: 2px;
}

/* Responsive design */
@media (max-width: 768px) {
    .container, .container-fluid {
        padding: 1rem;
    }

    .actions-bar {
        flex-direction: column;
        gap: 0.5rem;
    }

    .btn {
        width: 100%;
    }
}