/* ========================================
   Jeffrey E.: Seventh Production Documents
   NY Times Subdued Aesthetic
   ======================================== */

/* ========================================
   Variables
   ======================================== */
:root {
    /* Colors - Extremely Minimal */
    --color-white: #FFFFFF;
    --color-black: #121212;
    --color-gray: #666666;
    --color-gray-light: #DDDDDD;
    --color-gray-lighter: #EEEEEE;
    --color-gray-lightest: #F7F7F7;

    /* Accent */
    --color-link: #326891;
    --color-poi: #000000;

    /* Typography */
    --font-serif: 'Crimson Pro', Georgia, serif;
    --font-sans: 'Inter', 'Helvetica Neue', sans-serif;
    --font-mono: 'JetBrains Mono', Monaco, monospace;

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;

    /* Borders */
    --border-width: 1px;
    --border-color: var(--color-gray-lighter);
    --border-radius: 2px;

    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 2px 4px rgba(0, 0, 0, 0.08);

    /* Transitions */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 300ms cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-sans);
    font-size: 1rem;
    line-height: 1.6;
    color: var(--color-black);
    background: var(--color-white);
}

/* ========================================
   Typography
   ======================================== */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-serif);
    font-weight: 600;
    line-height: 1.2;
    margin-bottom: var(--spacing-sm);
}

h1 { font-size: 3rem; }
h2 { font-size: 2.25rem; }
h3 { font-size: 1.5rem; }

p {
    margin-bottom: var(--spacing-sm);
}

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

a:hover {
    opacity: 0.7;
}

/* ========================================
   Layout
   ======================================== */
.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

/* ========================================
   Header
   ======================================== */
.header {
    padding: var(--spacing-xl) 0 var(--spacing-lg);
    border-bottom: var(--border-width) solid var(--border-color);
}

.title {
    font-size: 3rem;
    margin-bottom: var(--spacing-xs);
}

.subtitle {
    font-size: 1.125rem;
    color: var(--color-gray);
    font-weight: 400;
}

/* ========================================
   Stats Cards
   ======================================== */
.stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-md);
    margin: var(--spacing-xl) 0;
}

.stat-card {
    padding: var(--spacing-md);
    border: var(--border-width) solid var(--border-color);
    border-radius: var(--border-radius);
    text-align: center;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.stat-card:hover {
    border-color: var(--color-black);
    box-shadow: var(--shadow-md);
}

.stat-value {
    font-family: var(--font-serif);
    font-size: 2.5rem;
    font-weight: 600;
    color: var(--color-black);
}

.stat-label {
    font-size: 0.875rem;
    color: var(--color-gray);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-top: var(--spacing-xs);
}

/* ========================================
   Sections
   ======================================== */
.network-section {
    margin: var(--spacing-xl) 0;
}

.section-description {
    color: var(--color-gray);
    margin-bottom: var(--spacing-md);
}

/* ========================================
   Network Visualization
   ======================================== */
.network-container {
    width: 100%;
    height: 600px;
    border: var(--border-width) solid var(--border-color);
    border-radius: var(--border-radius);
    background: var(--color-white);
    margin-bottom: var(--spacing-md);
}

#network-graph {
    width: 100%;
    height: 100%;
}

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

/* ========================================
   Document Viewer
   ======================================== */
.document-viewer {
    margin: var(--spacing-xl) 0;
}

.viewer-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-md);
    border-bottom: var(--border-width) solid var(--border-color);
}

.viewer-content {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
    min-height: 600px;
}

/* Top: Email Text */
.viewer-text {
    order: 1;
    padding-bottom: var(--spacing-lg);
    border-bottom: var(--border-width) solid var(--border-color);
}

/* Bottom: Image */
.viewer-image {
    order: 2;
    padding-top: var(--spacing-lg);
}

.image-container {
    width: 100%;
    margin-bottom: var(--spacing-md);
}

.image-container img {
    width: 100%;
    height: auto;
    border: var(--border-width) solid var(--border-color);
    border-radius: var(--border-radius);
}

.image-label {
    font-size: 0.75rem;
    color: var(--color-gray);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-top: var(--spacing-xs);
    text-align: center;
}

.image-nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--spacing-sm);
}

#doc-position {
    font-family: var(--font-mono);
    font-size: 0.875rem;
    color: var(--color-gray);
}


.email-meta {
    border-bottom: var(--border-width) solid var(--border-color);
    padding-bottom: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

.meta-row {
    display: flex;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-xs);
}

.meta-label {
    font-weight: 600;
    min-width: 60px;
    color: var(--color-gray);
    font-size: 0.875rem;
}

.email-body {
    font-family: var(--font-sans);
    line-height: 1.8;
    margin-bottom: var(--spacing-xl);
    white-space: pre-wrap;
}

.word-cloud-section {
    border-top: var(--border-width) solid var(--border-color);
    padding-top: var(--spacing-lg);
}

.word-cloud-section h3 {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-md);
}

#word-cloud {
    min-height: 200px;
}

/* ========================================
   Buttons
   ======================================== */
.btn,
.btn-back {
    font-family: var(--font-sans);
    font-size: 0.875rem;
    font-weight: 500;
    padding: var(--spacing-xs) var(--spacing-md);
    border: var(--border-width) solid var(--color-black);
    background: var(--color-white);
    color: var(--color-black);
    cursor: pointer;
    border-radius: var(--border-radius);
    transition: all var(--transition-fast);
}

.btn:hover,
.btn-back:hover {
    background: var(--color-black);
    color: var(--color-white);
}

.btn:disabled {
    opacity: 0.3;
    cursor: not-allowed;
}

.btn-back {
    font-size: 1rem;
    padding: var(--spacing-sm) var(--spacing-lg);
    background: var(--color-black);
    color: var(--color-white);
    border: var(--border-width) solid var(--color-black);
}

.btn-back:hover {
    background: var(--color-white);
    color: var(--color-black);
}

/* Primary action buttons (navigation) */
.btn-primary {
    background: var(--color-black);
    color: var(--color-white);
}

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

/* Search Input */
.search-input {
    width: 100%;
    max-width: 600px;
    padding: var(--spacing-sm);
    font-family: var(--font-sans);
    font-size: 1rem;
    border: var(--border-width) solid var(--color-gray-light);
    border-radius: var(--border-radius);
    transition: border-color var(--transition-fast);
}

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

.search-input::placeholder {
    color: var(--color-gray);
}

/* Compact Search with Button */
.search-input-wrapper {
    display: flex;
    gap: var(--spacing-sm);
    align-items: center;
    flex-wrap: wrap;
}

.search-input-compact {
    flex: 1;
    min-width: 200px;
    max-width: 400px;
    padding: var(--spacing-sm);
    font-family: var(--font-sans);
    font-size: 0.9375rem;
    border: var(--border-width) solid var(--color-gray-light);
    border-radius: var(--border-radius);
    transition: border-color var(--transition-fast);
}

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

.search-input-compact::placeholder {
    color: var(--color-gray);
}

.search-btn {
    padding: var(--spacing-sm) var(--spacing-md);
    font-family: var(--font-sans);
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-white);
    background: var(--color-black);
    border: none;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: opacity var(--transition-fast);
    white-space: nowrap;
    min-width: 80px;
}

.search-btn:hover {
    opacity: 0.8;
}

.search-btn:active {
    opacity: 0.6;
}

/* Export Button */
.export-btn {
    padding: var(--spacing-sm);
    font-family: var(--font-sans);
    color: var(--color-white);
    background: var(--color-black);
    border: none;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: opacity var(--transition-fast);
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 44px;
    height: 44px;
}

.export-btn:hover {
    opacity: 0.8;
}

.export-btn:active {
    opacity: 0.6;
}

/* Apple-style Toggle Switch */
.apple-switch {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    cursor: pointer;
    user-select: none;
}

.apple-switch input[type="checkbox"] {
    position: absolute;
    opacity: 0;
    width: 0;
    height: 0;
}

.apple-slider {
    position: relative;
    display: inline-block;
    width: 44px;
    height: 26px;
    background-color: #E0E0E0;
    border-radius: 26px;
    transition: background-color 0.3s ease;
}

.apple-slider::before {
    content: '';
    position: absolute;
    height: 22px;
    width: 22px;
    left: 2px;
    top: 2px;
    background-color: white;
    border-radius: 50%;
    transition: transform 0.3s ease;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.apple-switch input[type="checkbox"]:checked + .apple-slider {
    background-color: var(--color-black);
}

.apple-switch input[type="checkbox"]:checked + .apple-slider::before {
    transform: translateX(18px);
}

.apple-switch:hover .apple-slider {
    opacity: 0.9;
}

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

/* ========================================
   Checkbox
   ======================================== */
.checkbox-label {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-size: 0.875rem;
    cursor: pointer;
}

.checkbox-label input[type="checkbox"] {
    width: 16px;
    height: 16px;
    cursor: pointer;
}

/* ========================================
   Tabs
   ======================================== */
.tabs {
    display: flex;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-xl);
    border-bottom: var(--border-width) solid var(--border-color);
}

.tab-button {
    font-family: var(--font-sans);
    font-size: 1rem;
    font-weight: 500;
    padding: var(--spacing-md) var(--spacing-lg);
    border: none;
    background: transparent;
    color: var(--color-gray);
    cursor: pointer;
    border-bottom: 2px solid transparent;
    transition: all var(--transition-fast);
    margin-bottom: -1px;
}

.tab-button:hover {
    color: var(--color-black);
}

.tab-button.active {
    color: var(--color-black);
    border-bottom-color: var(--color-black);
}

.tab-content {
    display: none;
}

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

/* Sub-tabs (within Emails tab) */
.sub-tabs {
    display: flex;
    gap: var(--spacing-sm);
    border-bottom: var(--border-width) solid #e0e0e0;
    margin-bottom: var(--spacing-lg);
}

.sub-tab-button {
    padding: var(--spacing-sm) var(--spacing-md);
    background: none;
    border: none;
    border-bottom: 2px solid transparent;
    cursor: pointer;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-gray);
    transition: all var(--transition-fast);
}

.sub-tab-button:hover {
    color: var(--color-black);
    background: #f5f5f5;
}

.sub-tab-button.active {
    color: var(--color-black);
    border-bottom-color: var(--color-black);
}

.sub-tab-content {
    display: none;
}

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

/* ========================================
   Connections Table
   ======================================== */
.connections-section {
    margin: var(--spacing-xl) 0;
}

.connections-table-container {
    overflow-x: auto;
    border: var(--border-width) solid var(--border-color);
    border-radius: var(--border-radius);
}

.connections-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.875rem;
}

.connections-table th,
.connections-table td {
    padding: var(--spacing-sm) var(--spacing-md);
    text-align: left;
    border-bottom: var(--border-width) solid var(--border-color);
}

.connections-table th {
    background: var(--color-gray-lightest);
    font-weight: 600;
    position: sticky;
    top: 0;
}

.connections-table tbody tr {
    cursor: pointer;
    transition: background var(--transition-fast);
}

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

.connections-table tbody tr.poi-row {
    background: var(--color-gray-lighter);
    font-weight: 600;
}

.connections-table tbody tr.poi-row:hover {
    background: var(--color-gray-light);
}

.connections-table .text-right {
    text-align: right;
}

.connections-table tfoot {
    font-weight: 600;
    border-top: 2px solid var(--color-black);
}

.connections-table tfoot td {
    padding: var(--spacing-md);
    background: var(--color-gray-lightest);
}

/* ========================================
   Document Gallery
   ======================================== */
.documents-section {
    margin: var(--spacing-xl) 0;
}

.search-container {
    margin-bottom: var(--spacing-lg);
}

.search-stats {
    font-size: 0.875rem;
    color: var(--color-gray);
    margin-top: var(--spacing-xs);
}

.document-grid {
    margin-bottom: var(--spacing-lg);
    min-height: 500px;
}

.document-viewer-single {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-md);
}

.document-viewer-split {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
    min-height: 600px;
}

.document-viewer-left {
    border-right: var(--border-width) solid var(--border-color);
    padding-right: var(--spacing-lg);
}

.document-viewer-right {
    padding-left: var(--spacing-lg);
    overflow-y: auto;
    max-height: 80vh;
}

.document-single-image {
    width: 100%;
    max-width: 900px;
    border: var(--border-width) solid var(--border-color);
    border-radius: var(--border-radius);
    overflow: hidden;
}

.document-single-image img {
    width: 100%;
    height: auto;
    display: block;
}

.document-single-info {
    font-size: 0.875rem;
    color: var(--color-gray);
    text-align: center;
}

.document-ocr-text {
    max-width: 900px;
    padding: var(--spacing-md);
    background: var(--color-gray-lightest);
    border: var(--border-width) solid var(--border-color);
    border-radius: var(--border-radius);
    font-family: var(--font-mono);
    font-size: 0.75rem;
    line-height: 1.6;
    color: var(--color-gray);
    white-space: pre-wrap;
}

.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--spacing-md);
    margin: var(--spacing-xl) 0;
}

#page-info {
    font-family: var(--font-mono);
    font-size: 0.875rem;
    color: var(--color-gray);
}

/* ========================================
   Footer
   ======================================== */
.footer {
    margin-top: var(--spacing-xl);
    padding: var(--spacing-xl) 0;
    border-top: var(--border-width) solid var(--border-color);
    text-align: center;
    color: var(--color-gray);
    font-size: 0.875rem;
}

.footer-note {
    font-size: 0.75rem;
    margin-top: var(--spacing-xs);
}

/* ========================================
   Responsive
   ======================================== */
@media (max-width: 768px) {
    .title {
        font-size: 2rem;
    }

    /* Viewer is already vertical, no changes needed for mobile */

    .network-container {
        height: 400px;
    }

    /* Document viewer responsive */
    .document-viewer-split {
        grid-template-columns: 1fr;
    }

    .document-viewer-left {
        border-right: none;
        border-bottom: var(--border-width) solid var(--border-color);
        padding-right: 0;
        padding-bottom: var(--spacing-lg);
    }

    .document-viewer-right {
        padding-left: 0;
        padding-top: var(--spacing-lg);
    }
}

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

/* ========================================
   Network Nodes & Links
   ======================================== */
.node {
    cursor: pointer;
}

.node-poi {
    stroke: var(--color-black);
    stroke-width: 2px;
}

.node:hover {
    stroke: var(--color-black);
    stroke-width: 2px;
}

.link {
    stroke: #CCCCCC;
    stroke-opacity: 0.6;
}

.link-direct {
    stroke: #333333;
    stroke-opacity: 1;
    stroke-dasharray: none;
}

.link-cc {
    stroke: #999999;
    stroke-opacity: 0.6;
    stroke-dasharray: 3,3;
}

.link-mentioned {
    stroke: #7AA2BB;
    stroke-opacity: 0.5;
    stroke-dasharray: 5,5;
}

.link-semantic {
    stroke: #9EBFD0;
    stroke-opacity: 0.3;
    stroke-dasharray: 2,3;
}

.node-label {
    font-family: var(--font-sans);
    font-size: 11px;
    fill: var(--color-black);
    pointer-events: none;
}

/* ========================================
   Email Gallery
   ======================================== */
.email-display {
    min-height: 400px;
    margin: var(--spacing-xl) 0;
}

.email-card {
    background: white;
    border: var(--border-width) solid var(--border-color);
    border-radius: var(--border-radius);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
}

.email-card-header {
    border-bottom: var(--border-width) solid var(--border-color);
    padding-bottom: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

.email-meta-row {
    display: flex;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-xs);
    font-size: 0.875rem;
}

.email-meta-label {
    font-weight: 600;
    color: var(--color-gray);
    min-width: 80px;
}

.email-meta-value {
    color: var(--color-black);
    flex: 1;
}

.email-body-section {
    margin-top: var(--spacing-lg);
}

.email-body-section h4 {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--color-gray);
    margin-bottom: var(--spacing-sm);
}

.email-body-text {
    font-family: var(--font-mono);
    font-size: 0.875rem;
    line-height: 1.6;
    white-space: pre-wrap;
    color: var(--color-black);
    background: #f9f9f9;
    padding: var(--spacing-md);
    border-radius: var(--border-radius);
    max-height: 400px;
    overflow-y: auto;
}

.email-image-section {
    margin-top: var(--spacing-lg);
    border-top: var(--border-width) solid var(--border-color);
    padding-top: var(--spacing-lg);
}

.email-image-section h4 {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--color-gray);
    margin-bottom: var(--spacing-sm);
}

.email-document-image {
    max-width: 100%;
    border: var(--border-width) solid var(--border-color);
    border-radius: var(--border-radius);
}

/* ========================================
   Email Gallery
   ======================================== */
.email-display {
    min-height: 400px;
    margin: var(--spacing-xl) 0;
}

.email-card {
    background: white;
    border: var(--border-width) solid var(--border-color);
    border-radius: var(--border-radius);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
}

.email-card-header {
    border-bottom: var(--border-width) solid var(--border-color);
    padding-bottom: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

.email-meta-row {
    display: flex;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-xs);
    font-size: 0.875rem;
}

.email-meta-label {
    font-weight: 600;
    color: var(--color-gray);
    min-width: 80px;
}

.email-meta-value {
    color: var(--color-black);
    flex: 1;
}

.email-body-section {
    margin-top: var(--spacing-lg);
}

.email-body-section h4 {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--color-gray);
    margin-bottom: var(--spacing-sm);
}

.email-body-text {
    font-family: var(--font-mono);
    font-size: 0.875rem;
    line-height: 1.6;
    white-space: pre-wrap;
    color: var(--color-black);
    background: #f9f9f9;
    padding: var(--spacing-md);
    border-radius: var(--border-radius);
    max-height: 400px;
    overflow-y: auto;
}

.email-image-section {
    margin-top: var(--spacing-lg);
    border-top: var(--border-width) solid var(--border-color);
    padding-top: var(--spacing-lg);
}

.email-image-section h4 {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--color-gray);
    margin-bottom: var(--spacing-sm);
}

.email-document-image {
    max-width: 100%;
    border: var(--border-width) solid var(--border-color);
    border-radius: var(--border-radius);
}

/* ========================================
   Markdown Rendered Content
   ======================================== */
.markdown-content {
    font-family: var(--font-sans);
    line-height: 1.8;
    color: var(--color-black);
}

.markdown-content h1,
.markdown-content h2,
.markdown-content h3,
.markdown-content h4,
.markdown-content h5,
.markdown-content h6 {
    font-family: var(--font-serif);
    margin-top: var(--spacing-lg);
    margin-bottom: var(--spacing-sm);
}

.markdown-content h1 { font-size: 2rem; }
.markdown-content h2 { font-size: 1.5rem; }
.markdown-content h3 { font-size: 1.25rem; }
.markdown-content h4 { font-size: 1.125rem; }

.markdown-content p {
    margin-bottom: var(--spacing-md);
}

.markdown-content ul,
.markdown-content ol {
    margin-left: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
}

.markdown-content li {
    margin-bottom: var(--spacing-xs);
}

.markdown-content code {
    font-family: var(--font-mono);
    font-size: 0.875rem;
    background: var(--color-gray-lightest);
    padding: 0.125rem 0.25rem;
    border-radius: var(--border-radius);
}

.markdown-content pre {
    background: var(--color-gray-lightest);
    padding: var(--spacing-md);
    border-radius: var(--border-radius);
    overflow-x: auto;
    margin-bottom: var(--spacing-md);
}

.markdown-content pre code {
    background: none;
    padding: 0;
}

.markdown-content blockquote {
    border-left: 3px solid var(--color-gray-light);
    padding-left: var(--spacing-md);
    margin-left: 0;
    margin-bottom: var(--spacing-md);
    color: var(--color-gray);
}

.markdown-content a {
    color: var(--color-link);
    text-decoration: underline;
}

.markdown-content table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: var(--spacing-md);
}

.markdown-content th,
.markdown-content td {
    padding: var(--spacing-xs) var(--spacing-sm);
    border: var(--border-width) solid var(--border-color);
    text-align: left;
}

.markdown-content th {
    background: var(--color-gray-lightest);
    font-weight: 600;
}

.markdown-content hr {
    border: none;
    border-top: var(--border-width) solid var(--border-color);
    margin: var(--spacing-lg) 0;
}