:root {
    --primary-color: #4f46e5;
    --primary-light: #818cf8;
    --primary-dark: #3730a3;
    --secondary-color: #06b6d4;
    --success-color: #10b981;
    --warning-color: #f59e0b;
    --danger-color: #ef4444;
    --info-color: #3b82f6;
    --dark-color: #1e293b;
    --light-color: #f8fafc;
    --white-color: #ffffff;
    --gray-100: #f1f5f9;
    --gray-200: #e2e8f0;
    --gray-300: #cbd5e1;
    --gray-400: #94a3b8;
    --gray-500: #64748b;
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow: 0 1px 3px 0 rgb(0 0 0 / 0.1), 0 1px 2px -1px rgb(0 0 0 / 0.1);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --transition: all 0.3s ease;
    --sidebar-width: 260px;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Poppins', sans-serif;
    background-color: var(--gray-100);
    color: var(--dark-color);
    overflow-x: hidden;
}

/* Sidebar */
.sidebar {
    position: fixed;
    left: 0;
    top: 0;
    height: 100vh;
    width: var(--sidebar-width);
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    color: var(--white-color);
    display: flex;
    flex-direction: column;
    z-index: 1000;
    transition: var(--transition);
    box-shadow: var(--shadow-lg);
}

.sidebar-header {
    padding: 24px;
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 1.5rem;
    font-weight: 600;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.sidebar-header i {
    font-size: 1.8rem;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.1); }
}

.sidebar .nav {
    padding: 16px 12px;
    flex: 1;
    overflow-y: auto;
}

.sidebar .nav-item {
    margin-bottom: 8px;
}

.sidebar .nav-link {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    border-radius: 12px;
    transition: var(--transition);
    font-weight: 500;
}

.sidebar .nav-link:hover {
    background: rgba(255, 255, 255, 0.15);
    color: var(--white-color);
    transform: translateX(4px);
}

.sidebar .nav-link.active {
    background: rgba(255, 255, 255, 0.25);
    color: var(--white-color);
    box-shadow: var(--shadow-md);
}

.sidebar .nav-link i {
    font-size: 1.1rem;
    width: 24px;
    text-align: center;
}

/* Main Content */
#main-content {
    margin-left: var(--sidebar-width);
    min-height: 100vh;
    padding: 24px;
    transition: var(--transition);
}

/* Pages */
.page {
    display: none;
    animation: fadeIn 0.4s ease;
}

.page.active {
    display: block;
}

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

.page-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
    padding-bottom: 16px;
    border-bottom: 2px solid var(--gray-200);
}

.page-header h1 {
    font-size: 1.8rem;
    font-weight: 600;
    color: var(--dark-color);
    display: flex;
    align-items: center;
    gap: 12px;
}

.page-header h1 i {
    color: var(--primary-color);
}

.page-header .btn {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    border-radius: 10px;
    font-weight: 500;
    transition: var(--transition);
}

.page-header .btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.page-content {
    animation: slideUp 0.5s ease;
}

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

/* Cards */
.card {
    background: var(--white-color);
    border-radius: 16px;
    box-shadow: var(--shadow);
    border: none;
    transition: var(--transition);
    overflow: hidden;
}

.card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-2px);
}

.card-header {
    background: transparent;
    border-bottom: 1px solid var(--gray-200);
    padding: 16px 20px;
}

.card-header h5 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--dark-color);
    display: flex;
    align-items: center;
    gap: 8px;
}

.card-header h5 i {
    color: var(--primary-color);
}

.card-body {
    padding: 20px;
}

/* Metric Cards */
.metric-card {
    background: var(--white-color);
    border-radius: 16px;
    padding: 24px;
    display: flex;
    align-items: center;
    gap: 16px;
    box-shadow: var(--shadow);
    transition: var(--transition);
    border-left: 4px solid;
}

.metric-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.metric-card.metric-primary {
    border-left-color: var(--primary-color);
}

.metric-card.metric-success {
    border-left-color: var(--success-color);
}

.metric-card.metric-warning {
    border-left-color: var(--warning-color);
}

.metric-card.metric-info {
    border-left-color: var(--info-color);
}

.metric-icon {
    width: 60px;
    height: 60px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
}

.metric-card.metric-primary .metric-icon {
    background: rgba(79, 70, 229, 0.1);
    color: var(--primary-color);
}

.metric-card.metric-success .metric-icon {
    background: rgba(16, 185, 129, 0.1);
    color: var(--success-color);
}

.metric-card.metric-warning .metric-icon {
    background: rgba(245, 158, 11, 0.1);
    color: var(--warning-color);
}

.metric-card.metric-info .metric-icon {
    background: rgba(59, 130, 246, 0.1);
    color: var(--info-color);
}

.metric-info h3 {
    font-size: 1.6rem;
    font-weight: 700;
    color: var(--dark-color);
    margin-bottom: 4px;
}

.metric-info p {
    font-size: 0.875rem;
    color: var(--gray-500);
    margin: 0;
}

/* Tables */
.table {
    margin-bottom: 0;
}

.table thead th {
    background: var(--gray-100);
    color: var(--gray-500);
    font-weight: 600;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    padding: 14px 16px;
    border: none;
}

.table thead th:first-child {
    border-radius: 12px 0 0 12px;
}

.table thead th:last-child {
    border-radius: 0 12px 12px 0;
}

.table tbody td {
    padding: 16px;
    vertical-align: middle;
    border-bottom: 1px solid var(--gray-200);
    color: var(--dark-color);
}

.table tbody tr {
    transition: var(--transition);
}

.table tbody tr:hover {
    background: var(--gray-100);
}

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

/* Buttons */
.btn {
    border-radius: 10px;
    font-weight: 500;
    padding: 8px 16px;
    transition: var(--transition);
}

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

.btn-primary:hover {
    background: var(--primary-dark);
    border-color: var(--primary-dark);
    transform: translateY(-2px);
}

.btn-sm {
    padding: 6px 12px;
    font-size: 0.875rem;
}

.btn-action {
    width: 36px;
    height: 36px;
    padding: 0;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 8px;
    margin: 0 4px;
    transition: var(--transition);
}

.btn-action:hover {
    transform: scale(1.1);
}

.btn-edit {
    background: rgba(59, 130, 246, 0.1);
    color: var(--info-color);
    border: none;
}

.btn-edit:hover {
    background: var(--info-color);
    color: var(--white-color);
}

.btn-delete {
    background: rgba(239, 68, 68, 0.1);
    color: var(--danger-color);
    border: none;
}

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

.btn-view {
    background: rgba(16, 185, 129, 0.1);
    color: var(--success-color);
    border: none;
}

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

/* Badges */
.badge {
    padding: 6px 12px;
    font-weight: 500;
    border-radius: 20px;
    font-size: 0.75rem;
}

.badge-pendiente {
    background: rgba(245, 158, 11, 0.1);
    color: var(--warning-color);
}

.badge-completada {
    background: rgba(16, 185, 129, 0.1);
    color: var(--success-color);
}

.badge-completed {
    background: rgba(16, 185, 129, 0.1);
    color: var(--success-color);
}

.badge-cancelada {
    background: rgba(239, 68, 68, 0.1);
    color: var(--danger-color);
}

.badge-active {
    background: rgba(16, 185, 129, 0.1);
    color: var(--success-color);
}

.badge-inactive {
    background: rgba(148, 163, 184, 0.1);
    color: var(--gray-500);
}

/* Form Controls */
.form-control, .form-select {
    border-radius: 10px;
    border: 2px solid var(--gray-200);
    padding: 10px 14px;
    font-size: 0.9rem;
    transition: var(--transition);
}

.form-control:focus, .form-select:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.1);
}

.form-label {
    font-weight: 500;
    color: var(--dark-color);
    margin-bottom: 8px;
}

/* Modal */
.modal-content {
    border-radius: 16px;
    border: none;
    box-shadow: var(--shadow-lg);
}

.modal-header {
    background: var(--gray-100);
    border-radius: 16px 16px 0 0;
    padding: 20px 24px;
    border-bottom: none;
}

.modal-title {
    font-weight: 600;
    color: var(--dark-color);
}

.modal-body {
    padding: 24px;
}

.modal-footer {
    padding: 16px 24px;
    border-top: 1px solid var(--gray-200);
}

/* Pagination */
.pagination {
    margin-top: 20px;
}

.page-link {
    border-radius: 8px;
    margin: 0 4px;
    color: var(--dark-color);
    border: none;
    padding: 8px 14px;
    transition: var(--transition);
}

.page-link:hover {
    background: var(--primary-color);
    color: var(--white-color);
}

.page-item.active .page-link {
    background: var(--primary-color);
    color: var(--white-color);
    box-shadow: var(--shadow-md);
}

/* Modal Confirmation */
#modal-confirmacion .modal-content {
    border-top: 4px solid var(--danger-color);
}

#modal-confirmacion .btn-danger {
    background: var(--danger-color);
    border-color: var(--danger-color);
}

/* Empty State */
.empty-state {
    text-align: center;
    padding: 40px 20px;
    color: var(--gray-400);
}

.empty-state i {
    font-size: 3rem;
    margin-bottom: 16px;
    opacity: 0.5;
}

.empty-state p {
    font-size: 0.9rem;
}

/* Loading */
.loading {
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 40px;
}

.spinner {
    width: 40px;
    height: 40px;
    border: 4px solid var(--gray-200);
    border-top-color: var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* Toast Notifications */
.toast-container {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 9999;
}

.toast {
    border-radius: 12px;
    box-shadow: var(--shadow-lg);
    border-left: 4px solid;
}

.toast-success {
    border-left-color: var(--success-color);
}

.toast-error {
    border-left-color: var(--danger-color);
}

.toast-warning {
    border-left-color: var(--warning-color);
}

/* Responsive */
@media (max-width: 992px) {
    .sidebar {
        width: 80px;
    }
    
    .sidebar-header span {
        display: none;
    }
    
    .sidebar .nav-link span {
        display: none;
    }
    
    #main-content {
        margin-left: 80px;
    }
}

@media (max-width: 768px) {
    .sidebar {
        transform: translateX(-100%);
    }
    
    .sidebar.show {
        transform: translateX(0);
    }
    
    #main-content {
        margin-left: 0;
    }
    
    .metric-card {
        margin-bottom: 16px;
    }
}

/* Hover Effects */
.hover-scale {
    transition: var(--transition);
}

.hover-scale:hover {
    transform: scale(1.02);
}

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

::-webkit-scrollbar-track {
    background: var(--gray-100);
}

::-webkit-scrollbar-thumb {
    background: var(--gray-300);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--gray-400);
}

/* Table Responsive */
.table-responsive {
    border-radius: 12px;
    overflow: hidden;
}

/* Status Colors */
.status-entrada {
    color: var(--success-color);
    font-weight: 600;
}

.status-salida {
    color: var(--danger-color);
    font-weight: 600;
}

/* Price formatting */
.price {
    font-weight: 600;
    color: var(--success-color);
}

/* Date formatting */
.date-text {
    color: var(--gray-500);
    font-size: 0.85rem;
}