/* Enhanced UI Styles for MiniERP */

/* Global Enhancements */
:root {
    --primary-color: #3b82f6;
    --primary-hover: #2563eb;
    --secondary-color: #6b7280;
    --success-color: #10b981;
    --warning-color: #f59e0b;
    --error-color: #ef4444;
    --bg-gray-50: #f9fafb;
    --bg-gray-100: #f3f4f6;
    --border-gray-200: #e5e7eb;
    --text-gray-600: #4b5563;
    --text-gray-900: #111827;
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1);
    --border-radius: 0.5rem;
    --border-radius-lg: 0.75rem;
    --transition: all 0.2s ease-in-out;
}

/* Enhanced Form Styling */
.form-container {
    background: white;
    border-radius: var(--border-radius-lg);
    border: 1px solid var(--border-gray-200);
    box-shadow: var(--shadow-sm);
    padding: 1.5rem;
    margin-bottom: 1.5rem;
}

.form-section {
    margin-bottom: 2rem;
}

.form-section-title {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-gray-900);
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid var(--bg-gray-100);
}

.form-group {
    margin-bottom: 1rem;
}

.form-label {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-gray-900);
    margin-bottom: 0.375rem;
}

.form-label.required::after {
    content: " *";
    color: var(--error-color);
}

.form-input,
.form-select,
.form-textarea {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--border-gray-200);
    border-radius: var(--border-radius);
    font-size: 0.875rem;
    transition: var(--transition);
    background-color: white;
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgb(59 130 246 / 0.1);
}

.form-input.error,
.form-select.error,
.form-textarea.error {
    border-color: var(--error-color);
}

.form-error {
    font-size: 0.75rem;
    color: var(--error-color);
    margin-top: 0.25rem;
}

/* Enhanced Button Styling */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    font-size: 0.875rem;
    font-weight: 500;
    border-radius: var(--border-radius);
    transition: var(--transition);
    cursor: pointer;
    border: none;
    text-decoration: none;
}

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

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

.btn-secondary {
    background-color: var(--bg-gray-100);
    color: var(--text-gray-900);
    border: 1px solid var(--border-gray-200);
}

.btn-secondary:hover {
    background-color: var(--bg-gray-200);
}

.btn-success {
    background-color: var(--success-color);
    color: white;
}

.btn-success:hover {
    background-color: #059669;
}

.btn-warning {
    background-color: var(--warning-color);
    color: white;
}

.btn-warning:hover {
    background-color: #d97706;
}

.btn-danger {
    background-color: var(--error-color);
    color: white;
}

.btn-danger:hover {
    background-color: #dc2626;
}

.btn-sm {
    padding: 0.5rem 1rem;
    font-size: 0.75rem;
}

.btn-lg {
    padding: 1rem 2rem;
    font-size: 1rem;
}

/* Enhanced Card Styling */
.card {
    background: white;
    border-radius: var(--border-radius-lg);
    border: 1px solid var(--border-gray-200);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
}

.card-header {
    padding: 1.5rem;
    border-bottom: 1px solid var(--border-gray-200);
    background-color: var(--bg-gray-50);
}

.card-title {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-gray-900);
    margin: 0;
}

.card-body {
    padding: 1.5rem;
}

.card-footer {
    padding: 1rem 1.5rem;
    border-top: 1px solid var(--border-gray-200);
    background-color: var(--bg-gray-50);
}

/* Enhanced Table Styling */
.table-container {
    background: white;
    border-radius: var(--border-radius-lg);
    border: 1px solid var(--border-gray-200);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.table {
    width: 100%;
    border-collapse: collapse;
}

.table th {
    background-color: var(--bg-gray-50);
    padding: 1rem;
    text-align: left;
    font-weight: 600;
    color: var(--text-gray-900);
    border-bottom: 1px solid var(--border-gray-200);
    font-size: 0.875rem;
}

.table td {
    padding: 1rem;
    border-bottom: 1px solid var(--border-gray-200);
    font-size: 0.875rem;
    color: var(--text-gray-600);
}

.table tbody tr:hover {
    background-color: var(--bg-gray-50);
}

.table tbody tr:last-child td {
    border-bottom: none;
}

/* Status Badges */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 0.25rem 0.75rem;
    font-size: 0.75rem;
    font-weight: 500;
    border-radius: 9999px;
}

.badge-success {
    background-color: rgb(34 197 94 / 0.1);
    color: #166534;
}

.badge-warning {
    background-color: rgb(245 158 11 / 0.1);
    color: #92400e;
}

.badge-danger {
    background-color: rgb(239 68 68 / 0.1);
    color: #991b1b;
}

.badge-info {
    background-color: rgb(59 130 246 / 0.1);
    color: #1e40af;
}

.badge-secondary {
    background-color: rgb(107 114 128 / 0.1);
    color: #374151;
}

/* Alert Messages */
.alert {
    padding: 1rem 1.5rem;
    border-radius: var(--border-radius);
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.alert-success {
    background-color: rgb(34 197 94 / 0.1);
    border: 1px solid rgb(34 197 94 / 0.2);
    color: #166534;
}

.alert-warning {
    background-color: rgb(245 158 11 / 0.1);
    border: 1px solid rgb(245 158 11 / 0.2);
    color: #92400e;
}

.alert-danger {
    background-color: rgb(239 68 68 / 0.1);
    border: 1px solid rgb(239 68 68 / 0.2);
    color: #991b1b;
}

.alert-info {
    background-color: rgb(59 130 246 / 0.1);
    border: 1px solid rgb(59 130 246 / 0.2);
    color: #1e40af;
}

/* Page Header */
.page-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 2rem;
    padding-bottom: 1rem;
    border-bottom: 2px solid var(--bg-gray-100);
}

.page-title {
    font-size: 1.875rem;
    font-weight: 700;
    color: var(--text-gray-900);
    margin: 0;
}

.page-subtitle {
    font-size: 1rem;
    color: var(--text-gray-600);
    margin: 0.25rem 0 0 0;
}

/* Stats Cards */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.stat-card {
    background: white;
    border-radius: var(--border-radius-lg);
    border: 1px solid var(--border-gray-200);
    padding: 1.5rem;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
}

.stat-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-1px);
}

.stat-icon {
    width: 3rem;
    height: 3rem;
    border-radius: var(--border-radius);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1rem;
}

.stat-icon.primary {
    background-color: rgb(59 130 246 / 0.1);
    color: var(--primary-color);
}

.stat-icon.success {
    background-color: rgb(34 197 94 / 0.1);
    color: var(--success-color);
}

.stat-icon.warning {
    background-color: rgb(245 158 11 / 0.1);
    color: var(--warning-color);
}

.stat-icon.danger {
    background-color: rgb(239 68 68 / 0.1);
    color: var(--error-color);
}

.stat-value {
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-gray-900);
    margin: 0;
}

.stat-label {
    font-size: 0.875rem;
    color: var(--text-gray-600);
    margin: 0.25rem 0 0 0;
}

/* Loading States */
.loading {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-gray-600);
}

.spinner {
    width: 1rem;
    height: 1rem;
    border: 2px solid var(--bg-gray-200);
    border-top: 2px solid var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Empty States */
.empty-state {
    text-align: center;
    padding: 3rem 1.5rem;
    color: var(--text-gray-600);
}

.empty-state-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
    opacity: 0.5;
}

.empty-state-title {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-gray-900);
    margin-bottom: 0.5rem;
}

.empty-state-description {
    font-size: 0.875rem;
    margin-bottom: 1.5rem;
}

/* Responsive Grid */
.grid {
    display: grid;
    gap: 1.5rem;
}

.grid-cols-1 {
    grid-template-columns: 1fr;
}

.grid-cols-2 {
    grid-template-columns: repeat(2, 1fr);
}

.grid-cols-3 {
    grid-template-columns: repeat(3, 1fr);
}

.grid-cols-4 {
    grid-template-columns: repeat(4, 1fr);
}

/* Mobile Responsive */
@media (max-width: 768px) {
    .grid-cols-2,
    .grid-cols-3,
    .grid-cols-4 {
        grid-template-columns: 1fr;
    }
    
    .page-header {
        flex-direction: column;
        gap: 1rem;
        align-items: flex-start;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .btn {
        width: 100%;
        justify-content: center;
    }
    
    .table-container {
        overflow-x: auto;
    }
}

/* Dark mode support (optional) */
@media (prefers-color-scheme: dark) {
    :root {
        --bg-gray-50: #1f2937;
        --bg-gray-100: #374151;
        --border-gray-200: #4b5563;
        --text-gray-600: #d1d5db;
        --text-gray-900: #f9fafb;
    }
}

/* Animation utilities */
.fade-in {
    animation: fadeIn 0.3s ease-in-out;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.slide-in {
    animation: slideIn 0.3s ease-in-out;
}

@keyframes slideIn {
    from { opacity: 0; transform: translateX(-20px); }
    to { opacity: 1; transform: translateX(0); }
}

/* Focus management for accessibility */
.btn:focus,
.form-input:focus,
.form-select:focus,
.form-textarea:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

/* Print styles */
@media print {
    .btn,
    .page-header,
    .card-footer {
        display: none;
    }
    
    .card {
        border: 1px solid #000;
        box-shadow: none;
    }
}