/* Cloud Migration Calculator Styles */

/* Variables */
:root {
    --primary: #6366f1;
    --primary-dark: #4f46e5;
    --secondary: #8b5cf6;
    --accent: #06b6d4;
    --dark: #1e293b;
    --light: #f8fafc;
    --gray: #64748b;
    --success: #10b981;
    --warning: #f59e0b;
    --danger: #ef4444;
    --border: #e2e8f0;
    --aws: #ff9900;
    --azure: #0078d4;
    --gcp: #4285f4;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    line-height: 1.6;
    color: var(--dark);
    background: var(--light);
    margin: 0;
    padding: 0;
}

/* Header */
.header {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    color: white;
    padding: 5rem 0 2rem 0;
    margin-top: 0;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.header-content {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 2rem;
}

.header h1 {
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
}

.header p {
    font-size: 1.2rem;
    opacity: 0.95;
}

/* Navigation Tabs */
.nav-tabs {
    background: white;
    box-shadow: 0 2px 4px rgba(0,0,0,0.05);
    position: sticky;
    top: 60px; /* Account for site navigation */
    z-index: 100;
}

.nav-tabs-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    gap: 2rem;
    overflow-x: auto;
}

.nav-tab {
    padding: 1rem 1.5rem;
    background: none;
    border: none;
    border-bottom: 3px solid transparent;
    color: var(--gray);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
    white-space: nowrap;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    flex-shrink: 0;
}

.nav-tab:hover {
    color: var(--primary);
}

.nav-tab.active {
    color: var(--primary);
    border-bottom-color: var(--primary);
}

.nav-tab span {
    font-size: 1.1rem;
    display: inline-block;
    line-height: 1;
}

/* Main Content */
.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 2rem;
}

.tab-content {
    display: none;
    animation: fadeIn 0.3s;
}

.tab-content.active {
    display: block;
}

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

/* Section Styles */
.section {
    background: white;
    border-radius: 12px;
    padding: 2rem;
    margin-bottom: 2rem;
    box-shadow: 0 2px 8px rgba(0,0,0,0.05);
}

.section h2 {
    color: var(--primary);
    margin-bottom: 1.5rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid var(--border);
}

.section h3 {
    color: var(--dark);
    margin-top: 1.5rem;
    margin-bottom: 1rem;
}

/* Form Grid */
.form-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.form-group {
    display: flex;
    flex-direction: column;
}

.form-group label {
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--dark);
    font-size: 0.95rem;
}

.form-group input,
.form-group select,
.form-group textarea {
    padding: 0.75rem;
    border: 2px solid var(--border);
    border-radius: 6px;
    font-size: 1rem;
    transition: border-color 0.2s;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
}

/* Cloud Provider Cards */
.cloud-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
    margin: 2rem 0;
}

.cloud-card {
    border: 2px solid var(--border);
    border-radius: 10px;
    padding: 1.5rem;
    transition: all 0.3s;
    cursor: pointer;
}

.cloud-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}

.cloud-card.selected {
    border-color: var(--primary);
    background: linear-gradient(135deg, rgba(16, 185, 129, 0.05) 0%, rgba(16, 185, 129, 0.1) 100%);
}

.cloud-card h4 {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.aws-badge { color: var(--aws); }
.azure-badge { color: var(--azure); }
.gcp-badge { color: var(--gcp); }

/* Assessment Table */
.assessment-table {
    width: 100%;
    border-collapse: collapse;
    margin: 1.5rem 0;
    overflow-x: auto;
    display: block;
}

.assessment-table th {
    background: var(--primary);
    color: white;
    padding: 1rem;
    text-align: left;
    font-weight: 600;
    white-space: nowrap;
}

.assessment-table td {
    padding: 0.75rem 1rem;
    border-bottom: 1px solid var(--border);
    white-space: nowrap;
}

.assessment-table tr:hover {
    background: var(--light);
}

.assessment-table input,
.assessment-table select {
    width: 100%;
    min-width: 100px;
    padding: 0.5rem;
    border: 1px solid var(--border);
    border-radius: 4px;
}

.assessment-table .remove-btn {
    background: var(--danger);
    color: white;
    border: none;
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    cursor: pointer;
    font-size: 0.9rem;
}

.assessment-table .remove-btn:hover {
    background: #dc2626;
}

/* Score Display */
.score-display {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    margin: 2rem 0;
}

.score-card {
    background: linear-gradient(135deg, #e0f2fe 0%, #bae6fd 100%);
    padding: 1.5rem;
    border-radius: 10px;
    text-align: center;
}

.score-label {
    font-size: 0.9rem;
    color: var(--gray);
    margin-bottom: 0.5rem;
}

.score-value {
    font-size: 2.5rem;
    font-weight: bold;
    color: var(--primary);
}

.score-value.danger { color: var(--danger); }
.score-value.warning { color: var(--warning); }
.score-value.success { color: var(--success); }

/* Risk Matrix */
.risk-matrix {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 10px;
    margin: 2rem 0;
}

.risk-cell {
    padding: 1rem;
    text-align: center;
    border-radius: 8px;
    font-weight: 600;
}

.risk-low { background: #dcfce7; color: #166534; }
.risk-medium { background: #fef3c7; color: #92400e; }
.risk-high { background: #fee2e2; color: #991b1b; }
.risk-critical { background: #991b1b; color: white; }

/* Progress Bar */
.progress-container {
    margin: 2rem 0;
}

.progress-bar {
    width: 100%;
    height: 40px;
    background: var(--border);
    border-radius: 20px;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--secondary), var(--primary));
    border-radius: 20px;
    transition: width 0.5s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: bold;
    font-size: 1.1rem;
}

/* Buttons */
.button-group {
    display: flex;
    gap: 1rem;
    justify-content: flex-end;
    margin-top: 2rem;
    flex-wrap: wrap;
}

.btn {
    padding: 0.75rem 2rem;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    color: white;
}

.btn-secondary {
    background: white;
    color: var(--primary);
    border: 2px solid var(--primary);
}

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

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

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* Help Text */
.help-text {
    font-size: 0.85rem;
    color: var(--gray);
    margin-top: 0.25rem;
}

/* Alert Box */
.alert {
    padding: 1rem 1.5rem;
    border-radius: 8px;
    margin: 1rem 0;
}

.alert-info {
    background: #e0f2fe;
    border-left: 4px solid #0284c7;
    color: #075985;
}

.alert-success {
    background: #dcfce7;
    border-left: 4px solid var(--success);
    color: #166534;
}

.alert-warning {
    background: #fef3c7;
    border-left: 4px solid var(--warning);
    color: #92400e;
}

/* Service Mapping */
.service-mapping-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    margin: 2rem 0;
}

.service-column {
    background: var(--light);
    padding: 1.5rem;
    border-radius: 10px;
}

.service-column h4 {
    margin-bottom: 1rem;
    color: var(--dark);
}

.service-list {
    list-style: none;
    padding: 0;
}

.service-item {
    padding: 0.75rem;
    margin-bottom: 0.5rem;
    background: white;
    border-radius: 6px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border: 1px solid var(--border);
}

.service-item:hover {
    border-color: var(--primary);
}

.service-arrow {
    color: var(--primary);
    font-size: 1.2rem;
}

/* Migration Path Selector */
.migration-path-selector {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    margin: 2rem 0;
}

.migration-option {
    padding: 1.5rem;
    background: white;
    border: 2px solid var(--border);
    border-radius: 10px;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s;
}

.migration-option:hover {
    border-color: var(--primary);
    transform: translateY(-2px);
}

.migration-option.selected {
    border-color: var(--primary);
    background: linear-gradient(135deg, rgba(5, 150, 105, 0.05) 0%, rgba(16, 185, 129, 0.1) 100%);
}

.migration-option h4 {
    margin-bottom: 0.5rem;
}

.migration-option p {
    font-size: 0.9rem;
    color: var(--gray);
}

/* Total Row in Tables */
.total-row {
    font-weight: bold;
    background: var(--light);
}

.total-row td {
    border-top: 2px solid var(--primary);
}

/* Responsive */
@media (max-width: 768px) {
    .header h1 {
        font-size: 1.8rem;
    }
    
    .form-grid {
        grid-template-columns: 1fr;
    }
    
    .cloud-cards {
        grid-template-columns: 1fr;
    }
    
    .nav-tabs-container {
        padding: 0 1rem;
    }
    
    .container {
        padding: 1rem;
    }
    
    .service-mapping-container {
        grid-template-columns: 1fr;
    }
    
    .migration-path-selector {
        grid-template-columns: 1fr;
    }
    
    .assessment-table {
        font-size: 0.9rem;
    }
    
    .assessment-table th,
    .assessment-table td {
        padding: 0.5rem;
    }
}

/* Loading Spinner */
.spinner {
    border: 3px solid var(--border);
    border-top: 3px solid var(--primary);
    border-radius: 50%;
    width: 40px;
    height: 40px;
    animation: spin 1s linear infinite;
    margin: 2rem auto;
}

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

/* Tooltip */
.tooltip {
    position: relative;
    display: inline-block;
}

.tooltip .tooltiptext {
    visibility: hidden;
    width: 200px;
    background-color: var(--dark);
    color: white;
    text-align: center;
    border-radius: 6px;
    padding: 0.5rem;
    position: absolute;
    z-index: 1;
    bottom: 125%;
    left: 50%;
    margin-left: -100px;
    opacity: 0;
    transition: opacity 0.3s;
    font-size: 0.85rem;
}

.tooltip:hover .tooltiptext {
    visibility: visible;
    opacity: 1;
}

/* Print Styles */
@media print {
    .nav-tabs,
    .button-group,
    .btn {
        display: none;
    }
    
    .section {
        box-shadow: none;
        page-break-inside: avoid;
    }
    
    .header {
        background: none;
        color: var(--dark);
    }
}