/* ============================================
   Tech Stack Mappings - Styles
   ============================================ */

:root {
    /* Background & Surface */
    --bg-primary: #1a1a2e;
    --bg-secondary: #16213e;
    --bg-surface: rgba(255, 255, 255, 0.02);
    --bg-surface-hover: rgba(255, 255, 255, 0.05);
    --bg-surface-active: rgba(255, 255, 255, 0.08);
    
    /* Text */
    --text-primary: #e0e0e0;
    --text-secondary: #aaaaaa;
    --text-muted: #888888;
    --text-faint: #666666;
    
    /* Borders */
    --border-subtle: rgba(255, 255, 255, 0.05);
    --border-light: rgba(255, 255, 255, 0.1);
    --border-medium: rgba(255, 255, 255, 0.15);
    
    /* Vendor Colors */
    --microsoft: #00a4ef;
    --aws: #ff9900;
    --gcp: #4285f4;
    --opensource: #22c55e;
    
    /* Layer Colors (Row accents) */
    --layer-management: #3b82f6;    /* Blue */
    --layer-orchestration: #8b5cf6; /* Purple */
    --layer-data: #10b981;          /* Green */
    --layer-identity: #f59e0b;      /* Amber */
    --layer-observability: #ec4899; /* Pink */
    
    /* Row Category Colors (for matrix cards) */
    --category-threats: #ef4444;       /* Red */
    --category-risk: #22c55e;          /* Green */
    --category-implementation: #3b82f6; /* Blue */
    --category-standards: #a16207;      /* Brown */
    
    /* Accent */
    --accent-primary: #7c3aed;
    --accent-secondary: #00d4ff;
    
    /* Spacing */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    
    /* Border Radius */
    --radius-sm: 6px;
    --radius-md: 8px;
    --radius-lg: 12px;
}

/* ============================================
   Reset & Base
   ============================================ */

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
    min-height: 100vh;
    color: var(--text-primary);
    line-height: 1.5;
}

/* ============================================
   Container & Header
   ============================================ */

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: var(--space-xl);
}

.header {
    text-align: center;
    margin-bottom: var(--space-xl);
}

.back-link {
    display: inline-block;
    color: var(--text-muted);
    text-decoration: none;
    font-size: 0.9rem;
    margin-bottom: var(--space-md);
    transition: color 0.2s;
}

.back-link:hover {
    color: var(--accent-secondary);
}

h1 {
    font-size: 2.25rem;
    font-weight: 700;
    margin-bottom: var(--space-sm);
    background: linear-gradient(90deg, var(--accent-secondary), var(--accent-primary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.subtitle {
    color: var(--text-muted);
    font-size: 1rem;
}

/* ============================================
   View Tabs
   ============================================ */

.view-tabs {
    display: flex;
    justify-content: center;
    gap: var(--space-md);
    margin-bottom: var(--space-xl);
    flex-wrap: wrap;
}

.view-tab {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: 0.75rem 1.5rem;
    background: var(--bg-surface);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    font-size: 0.95rem;
    cursor: pointer;
    transition: all 0.3s ease;
}

.view-tab:hover {
    background: var(--bg-surface-hover);
    color: var(--text-primary);
}

.view-tab.active {
    background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
    border-color: transparent;
    color: white;
    font-weight: 600;
}

.tab-icon {
    font-size: 1.1rem;
}

/* ============================================
   View Sections
   ============================================ */

.view {
    display: none;
    animation: fadeIn 0.3s ease;
}

.view.active {
    display: block;
}

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

/* ============================================
   VIEW 1: Layer Table
   ============================================ */

.table-wrapper {
    overflow-x: auto;
    border-radius: var(--radius-lg);
    background: var(--bg-surface);
    border: 1px solid var(--border-light);
}

.layer-table {
    width: 100%;
    border-collapse: collapse;
    min-width: 900px;
}

.layer-table th {
    background: rgba(0, 0, 0, 0.3);
    padding: var(--space-md) var(--space-lg);
    text-align: left;
    font-weight: 600;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-secondary);
    border-bottom: 1px solid var(--border-light);
}

.layer-table th.layer-col {
    width: 180px;
}

.layer-table td {
    padding: var(--space-md) var(--space-lg);
    border-bottom: 1px solid var(--border-subtle);
    vertical-align: top;
}

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

.layer-table tr:hover td {
    background: var(--bg-surface-hover);
}

/* Layer cell styling */
.layer-cell {
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
}

.layer-name {
    font-weight: 600;
    font-size: 1rem;
    color: var(--text-primary);
}

.layer-question {
    font-size: 0.8rem;
    color: var(--text-muted);
    font-style: italic;
}

/* Layer row accent colors */
.layer-management td:first-child { border-left: 4px solid var(--layer-management); }
.layer-orchestration td:first-child { border-left: 4px solid var(--layer-orchestration); }
.layer-data td:first-child { border-left: 4px solid var(--layer-data); }
.layer-identity td:first-child { border-left: 4px solid var(--layer-identity); }
.layer-observability td:first-child { border-left: 4px solid var(--layer-observability); }

/* Tool chips */
.tools-cell {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-sm);
}

.tool-chip {
    display: inline-flex;
    align-items: center;
    padding: 0.4rem 0.75rem;
    border-radius: var(--radius-sm);
    font-size: 0.8rem;
    background: var(--bg-surface-active);
    border: 1px solid var(--border-light);
    color: var(--text-primary);
    transition: all 0.2s;
    cursor: default;
}

.tool-chip:hover {
    background: var(--bg-surface-hover);
    transform: translateY(-1px);
}

.tool-chip.microsoft { border-left: 3px solid var(--microsoft); }
.tool-chip.aws { border-left: 3px solid var(--aws); }
.tool-chip.gcp { border-left: 3px solid var(--gcp); }
.tool-chip.opensource { border-left: 3px solid var(--opensource); }

/* ============================================
   VIEW 2: Framework Matrix
   ============================================ */

.framework-matrix {
    display: grid;
    gap: var(--space-md);
}

.framework-card {
    background: var(--bg-surface);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    display: grid;
    grid-template-columns: 220px 1fr 1fr;
    gap: var(--space-lg);
    align-items: start;
    transition: all 0.3s ease;
}

.framework-card:hover {
    background: var(--bg-surface-hover);
    border-color: var(--border-medium);
    transform: translateY(-2px);
}

/* Category color accents for cards */
.framework-card.threats { border-left: 4px solid var(--category-threats); }
.framework-card.risk { border-left: 4px solid var(--category-risk); }
.framework-card.implementation { border-left: 4px solid var(--category-implementation); }
.framework-card.standards { border-left: 4px solid var(--category-standards); }

.framework-info {
    border-right: 1px solid var(--border-light);
    padding-right: var(--space-lg);
}

.framework-name {
    font-weight: 700;
    font-size: 1.15rem;
    color: var(--text-primary);
    margin-bottom: var(--space-xs);
}

.framework-org {
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-bottom: var(--space-sm);
}

.framework-desc {
    font-size: 0.85rem;
    color: var(--text-secondary);
    line-height: 1.5;
}

.framework-defines h4,
.framework-tools h4 {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-faint);
    margin-bottom: var(--space-sm);
}

.defines-list {
    list-style: none;
}

.defines-list li {
    font-size: 0.85rem;
    color: var(--text-secondary);
    padding: 0.3rem 0;
    padding-left: var(--space-md);
    position: relative;
}

.defines-list li::before {
    content: "→";
    position: absolute;
    left: 0;
    color: var(--accent-primary);
}

.tools-grid {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-sm);
}

/* ============================================
   VIEW 3: Click-Through Detail
   ============================================ */

.click-layout {
    display: grid;
    grid-template-columns: 280px 1fr;
    gap: var(--space-xl);
    min-height: 500px;
}

.frameworks-sidebar {
    background: var(--bg-surface);
    border-radius: var(--radius-lg);
    padding: var(--space-md);
    border: 1px solid var(--border-light);
    height: fit-content;
    position: sticky;
    top: var(--space-xl);
}

.frameworks-sidebar h3 {
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-muted);
    margin-bottom: var(--space-md);
    padding-bottom: var(--space-sm);
    border-bottom: 1px solid var(--border-light);
}

.frameworks-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
}

.framework-item {
    padding: 0.75rem var(--space-md);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all 0.2s;
    border-left: 3px solid transparent;
}

.framework-item:hover {
    background: var(--bg-surface-hover);
}

.framework-item.active {
    background: rgba(124, 58, 237, 0.15);
    border-left-color: var(--accent-primary);
}

/* Category color indicators for sidebar items */
.framework-item.threats { border-left-color: var(--category-threats); }
.framework-item.risk { border-left-color: var(--category-risk); }
.framework-item.implementation { border-left-color: var(--category-implementation); }
.framework-item.standards { border-left-color: var(--category-standards); }

.framework-item.active.threats,
.framework-item.active.risk,
.framework-item.active.implementation,
.framework-item.active.standards {
    background: rgba(124, 58, 237, 0.15);
}

.framework-item .name {
    font-weight: 600;
    font-size: 0.95rem;
    color: var(--text-primary);
}

.framework-item .org {
    font-size: 0.8rem;
    color: var(--text-muted);
}

/* Detail Panel */
.detail-panel {
    background: var(--bg-surface);
    border-radius: var(--radius-lg);
    padding: var(--space-xl);
    border: 1px solid var(--border-light);
}

.detail-placeholder {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 300px;
    color: var(--text-muted);
}

.placeholder-icon {
    font-size: 3rem;
    margin-bottom: var(--space-md);
    opacity: 0.5;
}

.detail-header {
    margin-bottom: var(--space-xl);
    padding-bottom: var(--space-lg);
    border-bottom: 1px solid var(--border-light);
}

.detail-header h2 {
    font-size: 1.75rem;
    color: var(--text-primary);
    margin-bottom: var(--space-xs);
}

.detail-header .org {
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-bottom: var(--space-md);
}

.detail-header .desc {
    color: var(--text-secondary);
    line-height: 1.6;
}

.implementation-section h3 {
    font-size: 1.1rem;
    color: var(--text-primary);
    margin-bottom: var(--space-md);
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.implementation-section h3::before {
    content: "🛠️";
}

.vendor-row {
    display: flex;
    align-items: center;
    padding: var(--space-md);
    background: var(--bg-surface-active);
    border-radius: var(--radius-md);
    margin-bottom: var(--space-sm);
}

.vendor-logo {
    width: 90px;
    font-weight: 600;
    font-size: 0.85rem;
    flex-shrink: 0;
}

.vendor-logo.microsoft { color: var(--microsoft); }
.vendor-logo.aws { color: var(--aws); }
.vendor-logo.gcp { color: var(--gcp); }
.vendor-logo.opensource { color: var(--opensource); }

.vendor-tools {
    flex: 1;
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-sm);
}

/* ============================================
   Legend
   ============================================ */

.legend {
    display: flex;
    justify-content: center;
    gap: var(--space-xl);
    margin-top: var(--space-xl);
    padding-top: var(--space-lg);
    border-top: 1px solid var(--border-light);
    flex-wrap: wrap;
}

.legend-item {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-size: 0.85rem;
    color: var(--text-muted);
}

.legend-color {
    width: 14px;
    height: 14px;
    border-radius: 3px;
}

.legend-color.microsoft { background: var(--microsoft); }
.legend-color.aws { background: var(--aws); }
.legend-color.gcp { background: var(--gcp); }
.legend-color.opensource { background: var(--opensource); }

.legend-color.threats { background: var(--category-threats); }
.legend-color.risk { background: var(--category-risk); }
.legend-color.implementation { background: var(--category-implementation); }
.legend-color.standards { background: var(--category-standards); }

/* ============================================
   Responsive Design
   ============================================ */

@media (max-width: 1024px) {
    .framework-card {
        grid-template-columns: 1fr;
        gap: var(--space-md);
    }
    
    .framework-info {
        border-right: none;
        padding-right: 0;
        border-bottom: 1px solid var(--border-light);
        padding-bottom: var(--space-md);
    }
    
    .click-layout {
        grid-template-columns: 1fr;
    }
    
    .frameworks-sidebar {
        position: static;
    }
}

@media (max-width: 768px) {
    .container {
        padding: var(--space-md);
    }
    
    h1 {
        font-size: 1.75rem;
    }
    
    .view-tabs {
        flex-direction: column;
        align-items: stretch;
    }
    
    .view-tab {
        justify-content: center;
    }
}