:root {
    --sidebar-width: 260px;
    --primary-color: #4f46e5;
}

body {
    font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
    background: #f4f6f9;
}

.login-page {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.login-card {
    width: 100%;
    max-width: 420px;
    border-radius: 16px;
}

#wrapper {
    min-height: 100vh;
}

.sidebar {
    width: var(--sidebar-width);
    min-height: 100vh;
    position: fixed;
    left: 0;
    top: 0;
    z-index: 1000;
    transition: transform 0.3s ease;
    overflow-y: auto;
}

.sidebar .nav-link {
    border-radius: 8px;
    padding: 0.6rem 1rem;
    margin-bottom: 2px;
    transition: background 0.2s;
}

.sidebar .nav-link:hover,
.sidebar .nav-link.active {
    background: rgba(255, 255, 255, 0.15);
}

#page-content {
    margin-left: var(--sidebar-width);
    min-height: 100vh;
}

.stat-card {
    border-radius: 12px;
    transition: transform 0.2s;
}

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

.stat-icon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.25rem;
}

.card {
    border-radius: 12px;
}

.table th {
    font-weight: 600;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: #6c757d;
}

.btn-action {
    padding: 0.25rem 0.5rem;
    font-size: 0.875rem;
}

.filter-bar {
    background: white;
    border-radius: 12px;
    padding: 1rem;
    margin-bottom: 1rem;
    box-shadow: 0 1px 3px rgba(0,0,0,0.08);
}

@media (max-width: 991.98px) {
    .sidebar {
        transform: translateX(-100%);
    }
    .sidebar.show {
        transform: translateX(0);
    }
    #page-content {
        margin-left: 0;
    }
}

.dataTables_wrapper .dataTables_filter input {
    border-radius: 8px;
    border: 1px solid #dee2e6;
    padding: 0.375rem 0.75rem;
}

.modal-content {
    border-radius: 12px;
}

.form-control, .form-select {
    border-radius: 8px;
}

.badge-priority-high { background: #dc3545; }
.badge-priority-medium { background: #ffc107; color: #000; }
.badge-priority-low { background: #6c757d; }