/*
 * Evidence Resume - Main Styles
 * Theme-agnostic base styles with CSS custom properties for theming
 */

/* ============ CSS Variables (Defaults) ============ */
:root {
    /* Colors - overridden by themes */
    --color-bg: #ffffff;
    --color-bg-secondary: #f8f9fa;
    --color-text: #212529;
    --color-text-secondary: #6c757d;
    --color-primary: #0066cc;
    --color-primary-hover: #0052a3;
    --color-border: #dee2e6;
    --color-accent: #28a745;

    /* Typography */
    --font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
    --font-family-mono: 'SF Mono', 'Fira Code', Consolas, monospace;
    --font-size-base: 16px;
    --font-size-sm: 14px;
    --font-size-lg: 18px;
    --font-size-xl: 24px;
    --font-size-2xl: 32px;

    /* Spacing */
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;
    --spacing-2xl: 48px;

    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-full: 9999px;

    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
    --shadow-md: 0 4px 6px rgba(0,0,0,0.1);
    --shadow-lg: 0 10px 15px rgba(0,0,0,0.1);

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-normal: 250ms ease;
}

/* ============ Reset & Base ============ */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: var(--font-size-base);
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    background-color: var(--color-bg);
    color: var(--color-text);
    line-height: 1.6;
    min-height: 100vh;
}

a {
    color: var(--color-primary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--color-primary-hover);
}

/* ============ Layout ============ */
.app-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--spacing-md);
}

/* ============ Header ============ */
.header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    padding: var(--spacing-xl) 0;
    border-bottom: 1px solid var(--color-border);
    margin-bottom: var(--spacing-xl);
}

.candidate-name {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    margin-bottom: var(--spacing-xs);
}

.candidate-headline {
    font-size: var(--font-size-lg);
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-sm);
}

.candidate-contact {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
}

.candidate-contact span {
    margin-right: var(--spacing-md);
}

.header-actions {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

/* Header Social Links */
.header-social {
    display: flex;
    gap: var(--spacing-sm);
}

.header-social-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    background-color: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    color: var(--color-text);
    text-decoration: none;
    font-size: 18px;
    transition: all var(--transition-fast);
}

.header-social-link:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
    transform: translateY(-2px);
    box-shadow: var(--shadow-sm);
}

.header-social-link .social-icon-img {
    width: 20px;
    height: 20px;
    object-fit: contain;
}

/* ============ Buttons ============ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm) var(--spacing-md);
    border: 1px solid transparent;
    border-radius: var(--radius-md);
    font-size: var(--font-size-sm);
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
}

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

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

.btn-secondary {
    background-color: var(--color-bg-secondary);
    border-color: var(--color-border);
    color: var(--color-text);
}

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

/* ============ Intro Section ============ */
.intro-section {
    background-color: var(--color-bg-secondary);
    padding: var(--spacing-lg);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-xl);
    border-left: 4px solid var(--color-primary);
}

/* ============ Highlights ============ */
.highlights-section {
    margin-bottom: var(--spacing-xl);
}

.section-title {
    font-size: var(--font-size-xl);
    font-weight: 600;
    margin-bottom: var(--spacing-lg);
    color: var(--color-text);
}

.highlights-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: var(--spacing-md);
}

.highlight-card {
    background-color: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    padding: var(--spacing-lg);
    cursor: pointer;
    transition: all var(--transition-fast);
}

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

.highlight-card .node-type-badge {
    margin-bottom: var(--spacing-sm);
}

.highlight-card h3 {
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-xs);
}

.highlight-card .organization {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-sm);
}

.highlight-card .summary {
    font-size: var(--font-size-sm);
    color: var(--color-text);
}

/* ============ Quick Stats Bar ============ */
.quick-stats {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
    padding: var(--spacing-md) var(--spacing-lg);
    background-color: var(--color-bg-secondary);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-xl);
}

.stat-item {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-xs) var(--spacing-md);
    font-size: var(--font-size-sm);
    color: var(--color-text);
    border-right: 1px solid var(--color-border);
}

.stat-item:last-child {
    border-right: none;
}

.stat-icon {
    width: 16px;
    height: 16px;
    flex-shrink: 0;
}

.stat-icon img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.stat-value {
    font-weight: 600;
    color: var(--color-primary);
}

/* ============ Filter Chips ============ */
.filter-chips {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
}

.filter-chip {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-xs) var(--spacing-md);
    background-color: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-full);
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.filter-chip:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
}

.filter-chip.active {
    background-color: var(--color-primary);
    border-color: var(--color-primary);
    color: white;
}

.filter-chip-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 14px;
    height: 14px;
    flex-shrink: 0;
}

.filter-chip-icon img {
    width: 14px;
    height: 14px;
    object-fit: contain;
}

/* ============ Search ============ */
.search-container {
    margin-bottom: var(--spacing-lg);
}

.search-input {
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-md);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    font-size: var(--font-size-base);
    background-color: var(--color-bg);
    color: var(--color-text);
    transition: border-color var(--transition-fast);
}

.search-input:focus {
    outline: none;
    border-color: var(--color-primary);
}

/* ============ Breadcrumb ============ */
.breadcrumb {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-lg);
}

.breadcrumb-item {
    cursor: pointer;
}

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

.breadcrumb-item.active {
    color: var(--color-text);
    font-weight: 500;
}

.breadcrumb-separator {
    color: var(--color-border);
}

/* ============ Category Sections ============ */
.category-section {
    margin-bottom: var(--spacing-lg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    overflow: hidden;
}

.category-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-md) var(--spacing-lg);
    background-color: var(--color-bg-secondary);
    cursor: pointer;
    transition: background-color var(--transition-fast);
}

.category-header:hover {
    background-color: var(--color-border);
}

.category-title {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: var(--font-size-base);
    font-weight: 600;
    color: var(--color-text);
}

.category-icon {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
}

.category-icon img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.category-count {
    font-size: var(--font-size-sm);
    font-weight: normal;
    color: var(--color-text-secondary);
}

.category-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 24px;
    height: 24px;
    border: none;
    background: none;
    cursor: pointer;
    color: var(--color-text-secondary);
    font-size: var(--font-size-sm);
    transition: transform var(--transition-fast);
}

.category-toggle.collapsed {
    transform: rotate(-90deg);
}

.category-content {
    padding: var(--spacing-md);
    background-color: var(--color-bg);
}

.category-content.hidden {
    display: none;
}

/* ============ Graph/Tree ============ */
.graph-container {
    padding: var(--spacing-md) 0;
}

.node-tree {
    list-style: none;
}

.node-item {
    margin-bottom: var(--spacing-sm);
}

.node-card {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background-color: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.node-card:hover {
    border-color: var(--color-primary);
    box-shadow: var(--shadow-sm);
}

.node-expand-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 24px;
    height: 24px;
    border: none;
    background: none;
    cursor: pointer;
    color: var(--color-text-secondary);
    font-size: var(--font-size-sm);
    transition: transform var(--transition-fast);
}

.node-expand-toggle.expanded {
    transform: rotate(90deg);
}

.node-expand-toggle:hover {
    color: var(--color-primary);
}

.node-content {
    flex: 1;
}

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

.node-type-badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 2px 8px;
    border-radius: var(--radius-full);
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.node-type-badge .badge-icon {
    width: 12px;
    height: 12px;
    flex-shrink: 0;
}

.node-type-badge .badge-icon img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.node-type-badge.role { background: #e3f2fd; color: #1565c0; }
.node-type-badge.project { background: #f3e5f5; color: #7b1fa2; }
.node-type-badge.achievement { background: #e8f5e9; color: #2e7d32; }
.node-type-badge.skill { background: #fff3e0; color: #ef6c00; }
.node-type-badge.leadership { background: #fce4ec; color: #c2185b; }
.node-type-badge.education { background: #e0f7fa; color: #00838f; }
.node-type-badge.artifact { background: #f5f5f5; color: #616161; }
.node-type-badge.certification { background: #fff8e1; color: #f9a825; }

.node-title {
    font-size: var(--font-size-base);
    font-weight: 600;
}

.node-organization {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
}

.node-summary {
    font-size: var(--font-size-sm);
    color: var(--color-text);
    margin-top: var(--spacing-xs);
}

.node-dates {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    margin-top: var(--spacing-xs);
}

.node-children {
    margin-left: var(--spacing-xl);
    margin-top: var(--spacing-sm);
    border-left: 2px solid var(--color-border);
    padding-left: var(--spacing-md);
}

/* ============ Modal ============ */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-backdrop {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.5);
}

.modal-content {
    position: relative;
    background-color: var(--color-bg);
    border-radius: var(--radius-lg);
    max-width: 700px;
    width: 90%;
    max-height: 85vh;
    overflow-y: auto;
    box-shadow: var(--shadow-lg);
}

.modal-close {
    position: absolute;
    top: var(--spacing-md);
    right: var(--spacing-md);
    background: none;
    border: none;
    font-size: 24px;
    cursor: pointer;
    color: var(--color-text-secondary);
    transition: color var(--transition-fast);
}

.modal-close:hover {
    color: var(--color-text);
}

.modal-header {
    padding: var(--spacing-xl);
    border-bottom: 1px solid var(--color-border);
}

.modal-title {
    font-size: var(--font-size-xl);
    margin-top: var(--spacing-sm);
}

.modal-organization {
    font-size: var(--font-size-base);
    color: var(--color-text-secondary);
    margin-top: var(--spacing-xs);
}

.modal-dates {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    margin-top: var(--spacing-xs);
}

.modal-body {
    padding: var(--spacing-xl);
}

.modal-summary {
    font-size: var(--font-size-base);
    line-height: 1.7;
    margin-bottom: var(--spacing-lg);
}

.modal-metrics {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.metric-item {
    background-color: var(--color-bg-secondary);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
}

.metric-value {
    font-size: var(--font-size-lg);
    font-weight: 700;
    color: var(--color-primary);
}

.metric-label {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
}

.modal-body-content {
    margin-bottom: var(--spacing-lg);
    line-height: 1.7;
}

.modal-artifacts {
    margin-bottom: var(--spacing-lg);
}

.modal-artifacts h4 {
    font-size: var(--font-size-base);
    margin-bottom: var(--spacing-sm);
}

.artifact-link {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-xs) var(--spacing-sm);
    background-color: var(--color-bg-secondary);
    border-radius: var(--radius-sm);
    font-size: var(--font-size-sm);
    margin-right: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
}

.modal-children h4 {
    font-size: var(--font-size-base);
    margin-bottom: var(--spacing-sm);
}

.child-link {
    display: block;
    padding: var(--spacing-sm);
    background-color: var(--color-bg-secondary);
    border-radius: var(--radius-sm);
    margin-bottom: var(--spacing-xs);
    cursor: pointer;
    transition: background-color var(--transition-fast);
}

.child-link:hover {
    background-color: var(--color-border);
}

/* ============ Theme Picker ============ */
.theme-picker {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 1001;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: rgba(0, 0, 0, 0.5);
}

.theme-picker-content {
    background-color: var(--color-bg);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    text-align: center;
}

.theme-picker h3 {
    margin-bottom: var(--spacing-lg);
}

.theme-options {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    justify-content: center;
}

.theme-option {
    padding: var(--spacing-sm) var(--spacing-lg);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-md);
    background-color: var(--color-bg);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.theme-option:hover {
    border-color: var(--color-primary);
}

/* ============ Footer ============ */
.footer {
    margin-top: var(--spacing-2xl);
    padding: var(--spacing-lg) 0;
    border-top: 1px solid var(--color-border);
    text-align: center;
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
}

.footer-social {
    display: flex;
    justify-content: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
    flex-wrap: wrap;
}

.social-link {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm) var(--spacing-md);
    background-color: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    color: var(--color-text);
    text-decoration: none;
    transition: all var(--transition-fast);
}

.social-link:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
    transform: translateY(-2px);
    box-shadow: var(--shadow-sm);
}

.social-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 18px;
    height: 18px;
}

.social-icon .social-icon-img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.social-label {
    font-weight: 500;
}

/* ============ Utility Classes ============ */
.hidden {
    display: none !important;
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    border: 0;
}

/* ============ Responsive ============ */
@media (max-width: 768px) {
    .header {
        flex-direction: column;
        gap: var(--spacing-md);
    }

    .highlights-grid {
        grid-template-columns: 1fr;
    }

    .node-children {
        margin-left: var(--spacing-md);
    }

    .modal-content {
        width: 95%;
        margin: var(--spacing-md);
    }
}