/* EVS SaaS Design System - Global Styles */

/* CSS Variables for Consistency */
:root {
    /* Colors */
    --primary-blue: #3b82f6;
    --primary-blue-dark: #2563eb;
    --success-green: #10a37f;
    --success-green-dark: #059669;
    --warning-orange: #f59e0b;
    --warning-orange-dark: #d97706;
    --danger-red: #ef4444;
    --danger-red-dark: #dc2626;
    --purple: #8b5cf6;
    --purple-dark: #7c3aed;
    
    /* Grays */
    --gray-50: #f8fafc;
    --gray-100: #f1f5f9;
    --gray-200: #e2e8f0;
    --gray-300: #cbd5e1;
    --gray-400: #94a3b8;
    --gray-500: #64748b;
    --gray-600: #475569;
    --gray-700: #334155;
    --gray-800: #1e293b;
    --gray-900: #0f172a;
    
    /* 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: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    
    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
}

/* Global Card Styles */
.card {
    background: linear-gradient(135deg, #ffffff, var(--gray-50));
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-xl);
    padding: var(--spacing-lg);
    transition: all var(--transition-normal);
    box-shadow: var(--shadow-sm);
}

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

.card-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
}

.card-icon {
    width: 2.5rem;
    height: 2.5rem;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-sm);
}

.card-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--gray-800);
    margin-bottom: 0.25rem;
}

.card-subtitle {
    font-size: 0.875rem;
    color: var(--gray-500);
    font-weight: 500;
}

/* Button Styles */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: 0.875rem;
    text-decoration: none;
    border: none;
    cursor: pointer;
    transition: all var(--transition-normal);
    box-shadow: var(--shadow-sm);
}

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

.btn-primary {
    background: linear-gradient(135deg, var(--primary-blue), var(--primary-blue-dark));
    color: white;
}

.btn-success {
    background: linear-gradient(135deg, var(--success-green), var(--success-green-dark));
    color: white;
}

.btn-warning {
    background: linear-gradient(135deg, var(--warning-orange), var(--warning-orange-dark));
    color: white;
}

.btn-danger {
    background: linear-gradient(135deg, var(--danger-red), var(--danger-red-dark));
    color: white;
}

.btn-secondary {
    background: linear-gradient(135deg, var(--gray-100), var(--gray-200));
    color: var(--gray-700);
    border: 1px solid var(--gray-300);
}

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

.form-label {
    display: block;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--gray-700);
    margin-bottom: var(--spacing-sm);
}

.form-input {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 1px solid var(--gray-300);
    border-radius: var(--radius-md);
    background: white;
    color: var(--gray-900);
    font-size: 0.875rem;
    transition: all var(--transition-fast);
}

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

.form-select {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 1px solid var(--gray-300);
    border-radius: var(--radius-md);
    background: white;
    color: var(--gray-900);
    font-size: 0.875rem;
    transition: all var(--transition-fast);
}

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

/* Badge Styles */
.badge {
    display: inline-flex;
    padding: 0.25rem 0.75rem;
    font-size: 0.75rem;
    font-weight: 600;
    border-radius: 9999px;
}

.badge-success {
    background: linear-gradient(135deg, #d1fae5, #a7f3d0);
    color: var(--success-green-dark);
}

.badge-warning {
    background: linear-gradient(135deg, #fef3c7, #fde68a);
    color: var(--warning-orange-dark);
}

.badge-danger {
    background: linear-gradient(135deg, #fee2e2, #fecaca);
    color: var(--danger-red-dark);
}

.badge-info {
    background: linear-gradient(135deg, #dbeafe, #e0f2fe);
    color: var(--primary-blue-dark);
}

.badge-purple {
    background: linear-gradient(135deg, #e9d5ff, #ddd6fe);
    color: var(--purple-dark);
}

/* Alert Styles */
.alert {
    padding: var(--spacing-md);
    border-radius: var(--radius-lg);
    margin-bottom: var(--spacing-lg);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.alert-success {
    background: linear-gradient(135deg, #f0fdf4, #dcfce7);
    border: 1px solid #bbf7d0;
    color: var(--success-green-dark);
}

.alert-error {
    background: linear-gradient(135deg, #fef2f2, #fee2e2);
    border: 1px solid #fecaca;
    color: var(--danger-red-dark);
}

.alert-warning {
    background: linear-gradient(135deg, #fffbeb, #fef3c7);
    border: 1px solid #fed7aa;
    color: var(--warning-orange-dark);
}

.alert-info {
    background: linear-gradient(135deg, #dbeafe, #e0f2fe);
    border: 1px solid #bfdbfe;
    color: var(--primary-blue-dark);
}

/* Table Styles */
.table-container {
    background: white;
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

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

.table thead {
    background: linear-gradient(135deg, var(--gray-50), var(--gray-100));
}

.table th {
    padding: var(--spacing-md) var(--spacing-lg);
    text-align: left;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--gray-500);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border-bottom: 1px solid var(--gray-200);
}

.table td {
    padding: var(--spacing-md) var(--spacing-lg);
    border-bottom: 1px solid var(--gray-100);
    transition: background-color var(--transition-fast);
}

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

/* KPI Card Styles */
.kpi-card {
    background: linear-gradient(135deg, #ffffff, var(--gray-50));
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-xl);
    padding: var(--spacing-lg);
    transition: all var(--transition-normal);
    box-shadow: var(--shadow-sm);
}

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

.kpi-card-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.kpi-card-info h3 {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--gray-500);
    margin-bottom: var(--spacing-sm);
}

.kpi-card-info h2 {
    font-size: 2rem;
    font-weight: 700;
    color: var(--gray-800);
    margin-bottom: 0.25rem;
}

.kpi-card-info p {
    font-size: 0.75rem;
    color: var(--success-green);
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

.kpi-card-icon {
    width: 3rem;
    height: 3rem;
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-sm);
}

/* Responsive Grid */
.grid {
    display: grid;
    gap: var(--spacing-lg);
}

.grid-1 { grid-template-columns: 1fr; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

/* Responsive Design */
@media (max-width: 768px) {
    .grid-2, .grid-3, .grid-4 {
        grid-template-columns: 1fr;
    }
    
    .card {
        padding: var(--spacing-md);
    }
    
    .btn {
        padding: 0.625rem 1.25rem;
        font-size: 0.8125rem;
    }
    
    .table-container {
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }
    
    .kpi-card-content {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-md);
    }
    
    /* Mobile-specific improvements */
    .critical-flex {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-md);
    }
    
    .critical-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }
    
    /* Mobile table improvements */
    .table {
        min-width: 600px;
    }
    
    .table th,
    .table td {
        padding: var(--spacing-sm);
        font-size: 0.875rem;
    }
    
    /* Mobile form improvements */
    .form-input,
    .form-select {
        font-size: 16px; /* Prevents zoom on iOS */
    }
    
    /* Mobile button improvements */
    .btn {
        min-height: 44px; /* Touch-friendly size */
        touch-action: manipulation;
    }
}

@media (max-width: 480px) {
    .card {
        padding: var(--spacing-sm);
    }
    
    .btn {
        width: 100%;
        justify-content: center;
    }
    
    .table th,
    .table td {
        padding: var(--spacing-sm);
    }
}

/* Loading States */
.loading {
    opacity: 0.6;
    pointer-events: none;
    position: relative;
}

.loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 20px;
    height: 20px;
    margin: -10px 0 0 -10px;
    border: 2px solid var(--gray-300);
    border-top: 2px solid var(--primary-blue);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

.btn.loading {
    color: transparent;
}

.btn.loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 16px;
    height: 16px;
    margin: -8px 0 0 -8px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-top: 2px solid white;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

/* Progress Indicators */
.progress-bar {
    width: 100%;
    height: 8px;
    background: var(--gray-200);
    border-radius: 4px;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(135deg, var(--primary-blue), var(--primary-blue-dark));
    border-radius: 4px;
    transition: width 0.3s ease;
}

/* Toast Notifications */
.toast {
    position: fixed;
    top: 20px;
    right: 20px;
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--radius-lg);
    color: white;
    font-weight: 500;
    z-index: 1000;
    transform: translateX(100%);
    transition: transform 0.3s ease;
}

.toast.show {
    transform: translateX(0);
}

.toast-success {
    background: linear-gradient(135deg, var(--success-green), var(--success-green-dark));
}

.toast-error {
    background: linear-gradient(135deg, var(--danger-red), var(--danger-red-dark));
}

.toast-warning {
    background: linear-gradient(135deg, var(--warning-orange), var(--warning-orange-dark));
}

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

/* Utility Classes */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: var(--spacing-xs); }
.mb-2 { margin-bottom: var(--spacing-sm); }
.mb-3 { margin-bottom: var(--spacing-md); }
.mb-4 { margin-bottom: var(--spacing-lg); }
.mb-5 { margin-bottom: var(--spacing-xl); }

.mt-0 { margin-top: 0; }
.mt-1 { margin-top: var(--spacing-xs); }
.mt-2 { margin-top: var(--spacing-sm); }
.mt-3 { margin-top: var(--spacing-md); }
.mt-4 { margin-top: var(--spacing-lg); }
.mt-5 { margin-top: var(--spacing-xl); }

.hidden { display: none; }
.block { display: block; }
.inline-block { display: inline-block; }
.flex { display: flex; }
.inline-flex { display: inline-flex; }

.items-center { align-items: center; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }

.w-full { width: 100%; }
.h-full { height: 100%; }

.rounded { border-radius: var(--radius-md); }
.rounded-lg { border-radius: var(--radius-lg); }
.rounded-xl { border-radius: var(--radius-xl); }

.shadow { box-shadow: var(--shadow-sm); }
.shadow-md { box-shadow: var(--shadow-md); }
.shadow-lg { box-shadow: var(--shadow-lg); }