/* Enhanced Maintenance Portal Styles */
/* ================================== */

:root {
    /* Modern Color Palette */
    --primary-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --secondary-gradient: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    --success-gradient: linear-gradient(135deg, #0ba360 0%, #3cba92 100%);
    --warning-gradient: linear-gradient(135deg, #f2994a 0%, #f2c94c 100%);
    --danger-gradient: linear-gradient(135deg, #eb3349 0%, #f45c43 100%);
    
    /* Enhanced shadows */
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.06);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.12);
    --shadow-xl: 0 12px 48px rgba(0, 0, 0, 0.16);
    --shadow-glow: 0 0 20px rgba(102, 126, 234, 0.4);
    
    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    
    /* Border radius */
    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 20px;
    --radius-full: 9999px;
    
    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-base: 0.3s ease;
    --transition-slow: 0.5s ease;
}

/* Global Enhancements */
body {
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    min-height: 100vh;
}

/* Enhanced Dashboard Cards */
.dashboard-card, .card, .portal-card {
    background: white;
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-md);
    border: 1px solid rgba(255, 255, 255, 0.8);
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}

.dashboard-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--primary-gradient);
    opacity: 0;
    transition: opacity var(--transition-base);
}

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

.dashboard-card:hover::before {
    opacity: 1;
}

/* Enhanced Stats Cards */
.stat-card {
    background: white;
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    position: relative;
    overflow: hidden;
    transition: all var(--transition-base);
    border: 1px solid #e5e7eb;
}

.stat-card::after {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 200%;
    height: 200%;
    background: var(--primary-gradient);
    opacity: 0.05;
    border-radius: 50%;
    transition: all var(--transition-slow);
}

.stat-card:hover::after {
    top: -75%;
    right: -75%;
    opacity: 0.1;
}

.stat-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
    border-color: #667eea;
}

.stat-value {
    font-size: 2.5rem;
    font-weight: 700;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin: var(--spacing-sm) 0;
}

.stat-label {
    color: #6b7280;
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-weight: 600;
}

.stat-change {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-full);
    font-size: 0.875rem;
    font-weight: 600;
    margin-top: var(--spacing-sm);
}

.stat-change.positive {
    background: #dcfce7;
    color: #16a34a;
}

.stat-change.negative {
    background: #fee2e2;
    color: #dc2626;
}

/* Enhanced Tables */
.table-container {
    background: white;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
}

table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
}

thead {
    background: linear-gradient(135deg, #f9fafb 0%, #f3f4f6 100%);
}

thead th {
    padding: var(--spacing-md) var(--spacing-lg);
    text-align: left;
    font-weight: 600;
    color: #374151;
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border-bottom: 2px solid #e5e7eb;
}

tbody tr {
    transition: all var(--transition-fast);
    border-bottom: 1px solid #f3f4f6;
}

tbody tr:hover {
    background: linear-gradient(90deg, rgba(102, 126, 234, 0.05) 0%, rgba(118, 75, 162, 0.05) 100%);
}

tbody td {
    padding: var(--spacing-md) var(--spacing-lg);
    color: #4b5563;
}

/* Enhanced Status Badges */
.status-badge, .badge {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    transition: all var(--transition-fast);
}

.status-badge.active, .badge.success {
    background: linear-gradient(135deg, #84fab0 0%, #8fd3f4 100%);
    color: #065f46;
}

.status-badge.scheduled, .badge.warning {
    background: linear-gradient(135deg, #ffecd2 0%, #fcb69f 100%);
    color: #92400e;
}

.status-badge.overdue, .badge.danger {
    background: linear-gradient(135deg, #ffeaa7 0%, #fdcb6e 100%);
    color: #dc2626;
}

.status-badge.completed, .badge.info {
    background: linear-gradient(135deg, #a8edea 0%, #fed6e3 100%);
    color: #1e40af;
}

/* Enhanced Buttons */
.btn, .portal-btn, button[type="submit"] {
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--radius-md);
    font-weight: 600;
    transition: all var(--transition-base);
    cursor: pointer;
    border: none;
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    transform: translate(-50%, -50%);
    transition: width var(--transition-base), height var(--transition-base);
}

.btn:hover::before {
    width: 300px;
    height: 300px;
}

.btn-primary {
    background: var(--primary-gradient);
    color: white;
    box-shadow: 0 4px 6px rgba(102, 126, 234, 0.25);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(102, 126, 234, 0.35);
}

.btn-secondary {
    background: white;
    color: #4b5563;
    border: 2px solid #e5e7eb;
}

.btn-secondary:hover {
    background: #f9fafb;
    border-color: #667eea;
    color: #667eea;
    transform: translateY(-2px);
}

.btn-success {
    background: var(--success-gradient);
    color: white;
    box-shadow: 0 4px 6px rgba(16, 185, 129, 0.25);
}

.btn-danger {
    background: var(--danger-gradient);
    color: white;
    box-shadow: 0 4px 6px rgba(239, 68, 68, 0.25);
}

/* Enhanced Form Elements */
.form-group {
    margin-bottom: var(--spacing-lg);
}

.form-label {
    display: block;
    margin-bottom: var(--spacing-sm);
    font-weight: 600;
    color: #374151;
    font-size: 0.875rem;
    letter-spacing: 0.025em;
}

.form-input, .form-select, .form-textarea,
input[type="text"], input[type="email"], input[type="number"],
input[type="date"], input[type="time"], select, textarea {
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-md);
    border: 2px solid #e5e7eb;
    border-radius: var(--radius-md);
    background: #f9fafb;
    transition: all var(--transition-base);
    font-family: inherit;
}

.form-input:focus, .form-select:focus, .form-textarea:focus,
input:focus, select:focus, textarea:focus {
    outline: none;
    border-color: #667eea;
    background: white;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
    transform: translateY(-1px);
}

/* Enhanced Sidebar */
.portal-sidebar {
    background: linear-gradient(180deg, #1f2937 0%, #111827 100%);
    box-shadow: 4px 0 24px rgba(0, 0, 0, 0.1);
}

.sidebar-nav-item {
    margin: var(--spacing-xs) var(--spacing-md);
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
}

.sidebar-nav-item a {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-sm) var(--spacing-md);
    color: #9ca3af;
    text-decoration: none;
    transition: all var(--transition-base);
    position: relative;
}

.sidebar-nav-item a::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 3px;
    height: 0;
    background: var(--primary-gradient);
    transition: height var(--transition-base);
    border-radius: 0 3px 3px 0;
}

.sidebar-nav-item:hover {
    background: rgba(255, 255, 255, 0.05);
}

.sidebar-nav-item:hover a {
    color: white;
}

.sidebar-nav-item.active {
    background: rgba(102, 126, 234, 0.1);
}

.sidebar-nav-item.active a {
    color: white;
}

.sidebar-nav-item.active a::before {
    height: 24px;
}

/* Enhanced Header */
.portal-header {
    background: white;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
    border-bottom: 1px solid #e5e7eb;
}

.header-search {
    position: relative;
}

.header-search input {
    padding-left: 2.5rem;
    background: #f3f4f6;
    border: 2px solid transparent;
    border-radius: var(--radius-full);
}

.header-search input:focus {
    background: white;
    border-color: #667eea;
}

.header-search i {
    position: absolute;
    left: var(--spacing-md);
    top: 50%;
    transform: translateY(-50%);
    color: #9ca3af;
}

/* Enhanced Charts Container */
.chart-container {
    background: white;
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-md);
    position: relative;
}

.chart-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-md);
    border-bottom: 2px solid #f3f4f6;
}

.chart-title {
    font-size: 1.125rem;
    font-weight: 700;
    color: #1f2937;
}

/* Enhanced Progress Bars */
.progress-bar {
    width: 100%;
    height: 8px;
    background: #e5e7eb;
    border-radius: var(--radius-full);
    overflow: hidden;
    position: relative;
}

.progress-bar-fill {
    height: 100%;
    background: var(--primary-gradient);
    border-radius: var(--radius-full);
    transition: width var(--transition-slow);
    position: relative;
    overflow: hidden;
}

.progress-bar-fill::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(
        90deg,
        transparent,
        rgba(255, 255, 255, 0.3),
        transparent
    );
    animation: shimmer 2s infinite;
}

@keyframes shimmer {
    0% { transform: translateX(-100%); }
    100% { transform: translateX(100%); }
}

/* Enhanced Notifications */
.notification {
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-md);
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-md);
    animation: slideIn var(--transition-base);
}

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

.notification.info {
    background: linear-gradient(135deg, #dbeafe 0%, #bfdbfe 100%);
    border-left: 4px solid #3b82f6;
}

.notification.success {
    background: linear-gradient(135deg, #dcfce7 0%, #bbf7d0 100%);
    border-left: 4px solid #22c55e;
}

.notification.warning {
    background: linear-gradient(135deg, #fef3c7 0%, #fde68a 100%);
    border-left: 4px solid #f59e0b;
}

.notification.error {
    background: linear-gradient(135deg, #fee2e2 0%, #fecaca 100%);
    border-left: 4px solid #ef4444;
}

/* Enhanced Modals */
.modal-overlay {
    background: rgba(0, 0, 0, 0.5);
    -webkit-backdrop-filter: blur(5px);
    backdrop-filter: blur(5px);
}

.modal-content {
    background: white;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
    animation: modalSlideIn var(--transition-base);
}

@keyframes modalSlideIn {
    from {
        opacity: 0;
        transform: translateY(-30px) scale(0.95);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

/* Enhanced Timeline */
.timeline-item {
    position: relative;
    padding-left: 3rem;
    padding-bottom: 2rem;
}

.timeline-item::before {
    content: '';
    position: absolute;
    left: 1rem;
    top: 0.5rem;
    bottom: -2rem;
    width: 2px;
    background: linear-gradient(180deg, #667eea 0%, #764ba2 100%);
}

.timeline-item:last-child::before {
    display: none;
}

.timeline-dot {
    position: absolute;
    left: 0.5rem;
    top: 0.5rem;
    width: 1rem;
    height: 1rem;
    background: white;
    border: 3px solid #667eea;
    border-radius: 50%;
    box-shadow: 0 0 0 4px rgba(102, 126, 234, 0.1);
}

/* Enhanced Tooltips */
.tooltip {
    position: relative;
}

.tooltip::after {
    content: attr(data-tooltip);
    position: absolute;
    bottom: 125%;
    left: 50%;
    transform: translateX(-50%);
    padding: var(--spacing-sm) var(--spacing-md);
    background: #1f2937;
    color: white;
    font-size: 0.875rem;
    border-radius: var(--radius-md);
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--transition-base);
    box-shadow: var(--shadow-lg);
}

.tooltip:hover::after {
    opacity: 1;
}

/* Enhanced Loading States */
.skeleton {
    background: linear-gradient(
        90deg,
        #f3f4f6 25%,
        #e5e7eb 50%,
        #f3f4f6 75%
    );
    background-size: 200% 100%;
    animation: loading 1.5s infinite;
    border-radius: var(--radius-md);
}

@keyframes loading {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

.spinner {
    width: 40px;
    height: 40px;
    border: 4px solid #e5e7eb;
    border-top-color: #667eea;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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

/* Smooth Scrollbar */
::-webkit-scrollbar {
    width: 10px;
    height: 10px;
}

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

::-webkit-scrollbar-thumb {
    background: var(--gray-400);
    border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--gray-500);
}

/* Focus Visible Enhancement */
:focus-visible {
    outline: 2px solid var(--primary-orange);
    outline-offset: 2px;
}

/* Selection Color */
::selection {
    background: rgba(220, 20, 60, 0.2);
    color: var(--gray-900);
}

/* Responsive Adjustments */
@media (max-width: 768px) {
    .dashboard-grid {
        grid-template-columns: 1fr;
    }
    
    .portal-content {
        padding: var(--space-md);
    }
    
    table {
        font-size: var(--text-sm);
    }
    
    .table-wrapper {
        overflow-x: auto;
    }
}

/* Print Styles */
@media print {
    .portal-sidebar,
    .portal-header,
    .btn,
    .no-print {
        display: none !important;
    }
    
    .portal-main {
        margin-left: 0 !important;
    }
    
    .portal-content {
        margin: 0;
        padding: 0;
    }
    
    .dashboard-card, 
    .card {
        box-shadow: none;
        border: 1px solid var(--gray-300);
        page-break-inside: avoid;
    }
}

/* Accessibility Improvements */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* Skip to content link */
.skip-to-content {
    position: absolute;
    top: -40px;
    left: 0;
    background: var(--primary-blue);
    color: var(--white);
    padding: var(--space-sm) var(--space-md);
    text-decoration: none;
    z-index: 9999;
}

.skip-to-content:focus {
    top: 0;
}