/* ==========================================================================
   Policy Browser - Inbox-Style Layout
   ========================================================================== */

/* CSS Variables */
:root {
    --color-primary: #0066cc;
    --color-primary-light: #0088ff;
    --color-primary-dark: #004499;
    --color-text: #1a1a1a;
    --color-text-secondary: #666;
    --color-text-muted: #999;
    --color-bg: #f5f5f5;
    --color-bg-white: #fff;
    --color-bg-hover: #f0f0f0;
    --color-bg-selected: #e8f0ff;
    --color-border: #e0e0e0;
    --color-border-light: #eee;

    --color-supportive: #22863a;
    --color-critical: #cb2431;
    --color-neutral: #6a737d;
    --color-mixed: #e36209;

    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 12px;
    --spacing-lg: 16px;
    --spacing-xl: 24px;

    --font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;

    --header-height: 48px;
    --list-width: 240px;
    --related-width: 320px;

    --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
    --shadow-md: 0 2px 8px rgba(0,0,0,0.1);
    --radius-sm: 4px;
    --radius-md: 6px;
}

/* Reset */
*, *::before, *::after {
    box-sizing: border-box;
}

html, body {
    margin: 0;
    padding: 0;
    height: 100%;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: 1.5;
    color: var(--color-text);
    background: var(--color-bg);
}

/* ==========================================================================
   Layout
   ========================================================================== */

.app-container {
    display: flex;
    flex-direction: column;
    height: 100vh;
    overflow: hidden;
}

/* Header */
.app-header {
    height: var(--header-height);
    background: var(--color-bg-white);
    border-bottom: 1px solid var(--color-border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 var(--spacing-lg);
    flex-shrink: 0;
}

.app-title {
    margin: 0;
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--color-text);
}

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

.search-container {
    position: relative;
}

.search-container input {
    width: 200px;
    padding: var(--spacing-sm) var(--spacing-md);
    padding-left: 32px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    font-size: var(--font-size-sm);
    background: var(--color-bg);
}

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

.search-icon {
    position: absolute;
    left: 10px;
    top: 50%;
    transform: translateY(-50%);
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
}

/* Main Container - Three Column Layout */
.main-container {
    display: flex;
    flex: 1;
    overflow: hidden;
}

/* ==========================================================================
   Policy List Panel (Left)
   ========================================================================== */

.policy-list-panel {
    width: var(--list-width);
    background: var(--color-bg-white);
    border-right: 1px solid var(--color-border);
    display: flex;
    flex-direction: column;
    flex-shrink: 0;
}

.panel-header {
    padding: var(--spacing-md) var(--spacing-lg);
    border-bottom: 1px solid var(--color-border);
}

.panel-header h2 {
    margin: 0;
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--color-text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.policy-list {
    flex: 1;
    overflow-y: auto;
}

.policy-row {
    display: flex;
    flex-direction: column;
    padding: var(--spacing-md) var(--spacing-lg);
    border-bottom: 1px solid var(--color-border-light);
    cursor: pointer;
    transition: background 0.15s;
}

.policy-row:hover {
    background: var(--color-bg-hover);
}

.policy-row.selected {
    background: var(--color-bg-selected);
    border-left: 3px solid var(--color-primary);
    padding-left: calc(var(--spacing-lg) - 3px);
}

.policy-row-title {
    font-weight: 600;
    font-size: var(--font-size-sm);
    color: var(--color-text);
    margin-bottom: var(--spacing-xs);
}

.policy-row-meta {
    font-size: var(--font-size-xs);
    color: var(--color-text-muted);
}

.policy-row-jurisdiction {
    display: inline-block;
    padding: 1px 6px;
    background: var(--color-bg);
    border-radius: 3px;
    margin-right: var(--spacing-sm);
}

/* ==========================================================================
   Policy Detail Panel (Center)
   ========================================================================== */

.policy-detail-panel {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    background: var(--color-bg-white);
}

.detail-placeholder {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-text-muted);
}

.detail-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.detail-header {
    padding: var(--spacing-lg);
    border-bottom: 1px solid var(--color-border);
    background: var(--color-bg-white);
}

.detail-header h1 {
    margin: 0 0 var(--spacing-sm) 0;
    font-size: var(--font-size-xl);
    font-weight: 600;
}

.detail-meta {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-md);
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
}

.detail-meta a {
    color: var(--color-primary);
    text-decoration: none;
}

.detail-meta a:hover {
    text-decoration: underline;
}

.detail-body {
    flex: 1;
    display: flex;
    overflow: hidden;
}

/* TOC Panel */
.toc-panel {
    width: 220px;
    border-right: 1px solid var(--color-border);
    overflow-y: auto;
    padding: var(--spacing-md);
    flex-shrink: 0;
    background: var(--color-bg);
}

.toc-list {
    list-style: none;
    margin: 0;
    padding: 0;
}

.toc-item {
    margin: 1px 0;
}

.toc-link {
    display: block;
    padding: var(--spacing-xs) var(--spacing-sm);
    font-size: var(--font-size-sm);
    color: var(--color-text);
    text-decoration: none;
    border-radius: var(--radius-sm);
    transition: background 0.15s;
}

.toc-link:hover {
    background: var(--color-bg-white);
}

.toc-link.active {
    background: var(--color-bg-selected);
    color: var(--color-primary);
}

.toc-children {
    list-style: none;
    margin: 0;
    padding-left: var(--spacing-md);
}

.toc-type-chapter > .toc-link,
.toc-type-section > .toc-link {
    font-weight: 600;
    color: var(--color-primary-dark);
}

.toc-type-recital > .toc-link {
    font-size: var(--font-size-xs);
    color: var(--color-text-muted);
}

.toc-toggle {
    display: inline-block;
    width: 16px;
    cursor: pointer;
    font-size: 10px;
    color: var(--color-text-muted);
}

.toc-item.collapsed > .toc-children {
    display: none;
}

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

/* Content Panel */
.content-panel {
    flex: 1;
    overflow-y: auto;
    padding: var(--spacing-lg) var(--spacing-xl);
}

/* Sections */
.section {
    margin-bottom: var(--spacing-lg);
    scroll-margin-top: var(--spacing-lg);
}

.section.highlighted {
    background: #fffbeb;
    margin-left: calc(-1 * var(--spacing-md));
    margin-right: calc(-1 * var(--spacing-md));
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
}

.section-header {
    margin: 0 0 var(--spacing-sm) 0;
}

.chapter-header,
.statute-section-header {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--color-primary-dark);
    padding-bottom: var(--spacing-sm);
    border-bottom: 1px solid var(--color-border);
    margin-top: var(--spacing-xl);
}

.article-header,
.subsection-header {
    font-size: var(--font-size-base);
    font-weight: 600;
    color: var(--color-text);
    margin-top: var(--spacing-lg);
}

.paragraph-header,
.point-header,
.subparagraph-header {
    font-weight: 600;
    margin-right: var(--spacing-xs);
}

.recital-header {
    font-weight: 600;
    color: var(--color-text-secondary);
    font-size: var(--font-size-sm);
}

.section-content {
    line-height: 1.7;
}

.section-type-recital .section-content {
    color: var(--color-text-secondary);
    font-size: var(--font-size-sm);
}

.section-type-paragraph,
.section-type-point,
.section-type-subparagraph {
    display: flex;
    flex-wrap: wrap;
}

.section-children {
    margin-left: var(--spacing-lg);
}

.section-type-point {
    margin-left: var(--spacing-md);
}

/* Clickable sections */
.section[data-has-related="true"] {
    cursor: pointer;
    border-left: 2px solid transparent;
    padding-left: var(--spacing-sm);
    margin-left: calc(-1 * var(--spacing-sm) - 2px);
    transition: border-color 0.15s, background 0.15s;
}

.section[data-has-related="true"]:hover {
    border-left-color: var(--color-primary);
    background: var(--color-bg);
}

.section.selected-section {
    border-left-color: var(--color-primary);
    background: var(--color-bg-selected);
}

.related-indicator {
    display: inline-block;
    margin-left: var(--spacing-sm);
    font-size: var(--font-size-xs);
    color: var(--color-text-muted);
}

/* ==========================================================================
   Related Panel (Right)
   ========================================================================== */

.related-panel {
    width: var(--related-width);
    background: var(--color-bg-white);
    border-left: 1px solid var(--color-border);
    display: flex;
    flex-direction: column;
    flex-shrink: 0;
}

.related-content {
    flex: 1;
    overflow-y: auto;
    padding: var(--spacing-md);
}

.related-placeholder {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100%;
    color: var(--color-text-muted);
    font-size: var(--font-size-sm);
}

.related-section {
    margin-bottom: var(--spacing-lg);
}

.related-section-header {
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-sm);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.related-section-header .count {
    background: var(--color-bg);
    padding: 1px 6px;
    border-radius: 10px;
    font-size: var(--font-size-xs);
    font-weight: normal;
}

/* Case Law Cards */
.case-card,
.commentary-card {
    background: var(--color-bg);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-sm);
    cursor: pointer;
    transition: box-shadow 0.15s;
}

.case-card:hover,
.commentary-card:hover {
    box-shadow: var(--shadow-md);
}

.card-title {
    font-weight: 600;
    font-size: var(--font-size-sm);
    margin-bottom: var(--spacing-xs);
    color: var(--color-text);
}

.card-meta {
    font-size: var(--font-size-xs);
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-xs);
}

.card-excerpt {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    line-height: 1.4;
}

/* Case and Commentary specific styles */
.case-name,
.commentary-title {
    font-weight: 600;
    font-size: var(--font-size-sm);
    margin-bottom: var(--spacing-xs);
    color: var(--color-text);
}

.case-meta,
.commentary-meta {
    font-size: var(--font-size-xs);
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-xs);
    display: flex;
    gap: var(--spacing-sm);
    align-items: center;
}

.case-relevance,
.commentary-excerpt {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    line-height: 1.4;
}

.detail-title {
    margin: 0 0 var(--spacing-sm) 0;
    font-size: var(--font-size-xl);
    font-weight: 600;
}

.toc-header {
    padding-bottom: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
    border-bottom: 1px solid var(--color-border);
}

.toc-header h3 {
    margin: 0;
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--color-text-secondary);
}

.toc-body {
    overflow-y: auto;
}

/* Panel section styles for related content */
.panel-section {
    margin-bottom: var(--spacing-lg);
}

.panel-section h3 {
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--color-text-secondary);
    margin: 0 0 var(--spacing-sm) 0;
}

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

.filters select {
    flex: 1;
    padding: var(--spacing-xs) var(--spacing-sm);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    font-size: var(--font-size-xs);
    background: var(--color-bg-white);
}

.empty-message {
    color: var(--color-text-muted);
    font-size: var(--font-size-sm);
    font-style: italic;
}

/* Inline related links */
.inline-related {
    margin-top: var(--spacing-sm);
    padding: var(--spacing-sm);
    background: var(--color-bg);
    border-radius: var(--radius-sm);
    font-size: var(--font-size-sm);
}

.inline-related-group {
    margin: var(--spacing-xs) 0;
}

.inline-related-label {
    color: var(--color-text-muted);
    margin-right: var(--spacing-xs);
}

.inline-case-link,
.inline-commentary-link {
    color: var(--color-primary);
    text-decoration: none;
}

.inline-case-link:hover,
.inline-commentary-link:hover {
    text-decoration: underline;
}

/* Stance badges */
.stance {
    display: inline-block;
    padding: 1px 6px;
    border-radius: 3px;
    font-size: var(--font-size-xs);
    font-weight: 500;
    text-transform: capitalize;
}

.stance-supportive {
    background: rgba(34, 134, 58, 0.1);
    color: var(--color-supportive);
}

.stance-critical {
    background: rgba(203, 36, 49, 0.1);
    color: var(--color-critical);
}

.stance-neutral {
    background: rgba(106, 115, 125, 0.1);
    color: var(--color-neutral);
}

.stance-mixed {
    background: rgba(227, 98, 9, 0.1);
    color: var(--color-mixed);
}

/* ==========================================================================
   Annotations
   ========================================================================== */

.section-annotations {
    margin-top: var(--spacing-sm);
}

.annotation {
    background: #fffef5;
    border-left: 3px solid #f0c000;
    padding: var(--spacing-sm) var(--spacing-md);
    margin: var(--spacing-sm) 0;
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    cursor: pointer;
    font-size: var(--font-size-sm);
}

.annotation:hover {
    background: #fffde0;
}

.annotation-quote {
    font-style: italic;
    color: var(--color-text-secondary);
    margin-bottom: var(--spacing-xs);
}

.annotation-note {
    color: var(--color-text);
}

.annotation-tags {
    margin-top: var(--spacing-xs);
}

.tag {
    display: inline-block;
    padding: 1px 6px;
    background: var(--color-bg);
    border-radius: 3px;
    font-size: var(--font-size-xs);
    color: var(--color-text-muted);
    margin-right: var(--spacing-xs);
}

/* Annotation popup */
.annotation-popup {
    position: fixed;
    background: var(--color-bg-white);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
    z-index: 1000;
}

.annotation-popup-btn {
    display: block;
    padding: var(--spacing-sm) var(--spacing-md);
    border: none;
    background: none;
    cursor: pointer;
    font-size: var(--font-size-sm);
    color: var(--color-primary);
}

.annotation-popup-btn:hover {
    background: var(--color-bg);
}

/* ==========================================================================
   Modal
   ========================================================================== */

.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 1000;
    align-items: center;
    justify-content: center;
}

.modal.active {
    display: flex;
}

.modal-content {
    background: var(--color-bg-white);
    border-radius: var(--radius-md);
    max-width: 600px;
    width: 90%;
    max-height: 80vh;
    overflow-y: auto;
    box-shadow: var(--shadow-md);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-lg);
    border-bottom: 1px solid var(--color-border);
}

.modal-header h2 {
    margin: 0;
    font-size: var(--font-size-lg);
}

.modal-close {
    border: none;
    background: none;
    font-size: var(--font-size-xl);
    cursor: pointer;
    color: var(--color-text-muted);
    padding: 0;
}

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

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

.modal-body h4 {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    text-transform: uppercase;
    margin: var(--spacing-lg) 0 var(--spacing-sm) 0;
}

.modal-body h4:first-child {
    margin-top: 0;
}

.modal-body blockquote {
    margin: 0;
    padding: var(--spacing-md);
    background: var(--color-bg);
    border-left: 3px solid var(--color-primary);
    font-style: italic;
}

.modal-body ul {
    margin: 0;
    padding-left: var(--spacing-lg);
}

.modal-body li {
    margin: var(--spacing-xs) 0;
}

/* Form elements in modal */
.form-group {
    margin-bottom: var(--spacing-md);
}

.form-group label {
    display: block;
    font-weight: 500;
    font-size: var(--font-size-sm);
    margin-bottom: var(--spacing-xs);
}

.form-group textarea {
    width: 100%;
    padding: var(--spacing-sm);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    font-family: inherit;
    font-size: var(--font-size-base);
    resize: vertical;
}

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

.selected-text {
    background: #fffbeb;
    padding: var(--spacing-sm);
    border-radius: var(--radius-sm);
    font-style: italic;
    margin: 0;
}

.tag-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
}

.tag-btn {
    padding: var(--spacing-xs) var(--spacing-sm);
    border: 1px solid var(--color-border);
    border-radius: 12px;
    background: white;
    font-size: var(--font-size-sm);
    cursor: pointer;
}

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

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

.form-actions {
    display: flex;
    justify-content: flex-end;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-lg);
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--color-border);
}

/* Buttons */
.btn {
    padding: var(--spacing-sm) var(--spacing-lg);
    border: none;
    border-radius: var(--radius-sm);
    font-size: var(--font-size-sm);
    font-weight: 500;
    cursor: pointer;
    text-decoration: none;
    display: inline-block;
}

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

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

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

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

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

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

@media (max-width: 1200px) {
    :root {
        --related-width: 280px;
    }
}

@media (max-width: 992px) {
    .related-panel {
        display: none;
    }
}

@media (max-width: 768px) {
    .policy-list-panel {
        width: 200px;
    }

    .toc-panel {
        display: none;
    }
}

@media (max-width: 600px) {
    .main-container {
        flex-direction: column;
    }

    .policy-list-panel {
        width: 100%;
        max-height: 200px;
    }

    .policy-detail-panel {
        flex: 1;
    }
}