/* CSS Custom Properties for Theme Support */
:root {
    /* Light Theme (Earthen Clarity) */
    --bg-primary: #FAF8F5;
    --bg-secondary: #F2EFEA;
    --bg-tertiary: #EAE0D5;
    --text-primary: #3E2723;
    --text-secondary: #5E503F;
    --text-muted: #8D6E63;
    --border-color: #EAE0D5;
    --border-light: #D5C9BC;
    --accent-color: #CC5500;
    --accent-hover: #A34400;
    --success-color: #445D48;
    --warning-color: #DAA520;
    --error-color: #A41F13;
    --shadow-color: rgba(62, 39, 35, 0.1);
    --shadow-heavy: rgba(62, 39, 35, 0.2);
    --modal-overlay: rgba(62, 39, 35, 0.5);
    --alpha-badge-bg: #DAA520;
    --alpha-badge-text: #3E2723;
    --version-badge-bg: #CC5500;
    --version-badge-text: #ffffff;
    --branch-badge-bg: #445D48;
    --branch-badge-text: #ffffff;
    --construct-series-bg: #CC5500;
    --construct-series-text: #ffffff;
    --construct-branch-bg: #DAA520;
    --construct-branch-text: #3E2723;
  }
  [data-theme="dark"] {
    /* Dark Theme (Earthen Night) */
    --bg-primary: #211D1A;
    --bg-secondary: #3E2723;
    --bg-tertiary: #5E503F;
    --text-primary: #F2EFEA;
    --text-secondary: #C6AC8E;
    --text-muted: #988B7E;
    --border-color: #5E503F;
    --border-light: #6F6050;
    --accent-color: #E2725B;
    --accent-hover: #F08A74;
    --success-color: #6B8F71;
    --warning-color: #F1C40F;
    --error-color: #D88B79;
    --shadow-color: rgba(0, 0, 0, 0.3);
    --shadow-heavy: rgba(0, 0, 0, 0.6);
    --modal-overlay: rgba(0, 0, 0, 0.7);
    --alpha-badge-bg: #F1C40F;
    --alpha-badge-text: #211D1A;
    --version-badge-bg: #E2725B;
    --version-badge-text: #211D1A;
    --branch-badge-bg: #6B8F71;
    --branch-badge-text: #ffffff;
    --construct-series-bg: #E2725B;
    --construct-series-text: #211D1A;
    --construct-branch-bg: #F1C40F;
    --construct-branch-text: #211D1A;
  }

/* General Body & Typography */
body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    line-height: 1.6;
    margin: 0;
    padding: 0;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    transition: background-color 0.3s ease, color 0.3s ease;
}

/* Layout & Sections */
main {
    max-width: 900px;
    margin: 0 auto;
    padding: 2rem 1rem;
}

section {
    padding: 3rem 1rem;
    border-bottom: 1px solid var(--border-color);
}

section:last-of-type {
    border-bottom: none;
}

header, footer {
    text-align: center;
    padding: 1.5rem 1rem;
}

header {
    background-color: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
    padding: 1rem 0;
    position: relative;
}

header h1 {
    margin: 0;
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-primary);
}

footer {
    background-color: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    padding: 2rem 0;
    margin-top: 3rem;
    text-align: center;
    color: var(--text-secondary);
}

footer p {
    margin: 0.5rem 0;
    color: var(--text-secondary);
}

/* Alpha Badge */
.alpha-badge {
    position: absolute;
    top: 1rem;
    right: 2rem;
    background-color: var(--alpha-badge-bg);
    color: var(--alpha-badge-text);
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.875rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    box-shadow: 0 2px 4px var(--shadow-color);
}

.alpha-badge:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 8px var(--shadow-color);
}

.alpha-badge:active {
    transform: scale(0.95);
}

/* Modal Styles */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: var(--modal-overlay);
    backdrop-filter: blur(4px);
}

.modal-content {
    background-color: var(--bg-primary);
    margin: 5% auto;
    padding: 0;
    border-radius: 8px;
    width: 90%;
    max-width: 600px;
    max-height: 80vh;
    overflow-y: auto;
    box-shadow: 0 10px 30px var(--shadow-heavy);
    animation: modalSlideIn 0.3s ease;
}

@keyframes modalSlideIn {
    from {
        opacity: 0;
        transform: translateY(-50px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.modal-header {
    background-color: var(--bg-secondary);
    padding: 1rem;
    border-bottom: 1px solid var(--border-color);
    border-radius: 8px 8px 0 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-header h2 {
    margin: 0;
    color: var(--text-primary);
}

.close {
    color: var(--text-secondary);
    font-size: 2rem;
    font-weight: bold;
    cursor: pointer;
    transition: color 0.2s ease;
}

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

.modal-body {
    padding: 1.5rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

.alpha-features,
.alpha-limitations {
    margin: 2rem 0;
    padding: 1.5rem;
    border-radius: 8px;
}

.alpha-features {
    background-color: var(--bg-secondary);
    border-left: 4px solid var(--success-color);
}

.alpha-limitations {
    background-color: var(--bg-secondary);
    border-left: 4px solid var(--warning-color);
}

.alpha-features h3,
.alpha-limitations h3 {
    margin-top: 0;
    margin-bottom: 1rem;
    font-size: 1.2em;
}

.alpha-features h3 {
    color: var(--success-color);
}

.alpha-limitations h3 {
    color: var(--warning-color);
}

.alpha-features ul,
.alpha-limitations ul {
    margin: 0;
    padding-left: 1.5rem;
}

.alpha-features li,
.alpha-limitations li {
    margin-bottom: 0.5rem;
}

/* Headings & Text Elements */
h1, h2, h3, h4, h5, h6 {
    color: var(--text-primary);
    margin-top: 0;
    margin-bottom: 1rem;
}

h1 {
    font-size: 2.5em;
    text-align: left;
}

h2 {
    font-size: 2em;
    margin-bottom: 1rem;
    text-align: left;
}

h3 {
    font-size: 1.4em;
    color: var(--text-primary);
}

p {
    color: var(--text-secondary);
    margin-bottom: 1rem;
}

a {
    color: var(--accent-color);
    text-decoration: none;
    transition: color 0.2s ease;
}

a:hover {
    color: var(--accent-hover);
    text-decoration: underline;
}

/* Page Header - Universal styling for all page headers */
.page-header {
    margin-bottom: 2rem;
    padding-bottom: 0.25rem;
    border-bottom: 1px solid var(--border-color);
}

.page-header h1 {
    color: var(--text-primary);
    margin-bottom: 0.25rem;
    text-align: left;
}

.page-header h2 {
    color: var(--text-primary);
    margin-bottom: 0.25rem;
    text-align: left;
}

.page-header p {
    color: var(--text-secondary);
    margin-bottom: 1rem;
    margin-top: 0.25rem;
    text-align: left;
}

.page-header .breadcrumb {
    background-color: transparent;
    border-bottom: none;
    padding: 0.1rem 0;
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-top: 0.5rem;
}

.page-header .breadcrumb-list {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.page-header .breadcrumb-item {
    display: flex;
    align-items: center;
}

.page-header .breadcrumb-item:not(:last-child)::after {
    content: "›";
    margin-left: 0.5rem;
    color: var(--text-muted);
    font-weight: bold;
}

.page-header .breadcrumb-link {
    color: var(--accent-color);
    text-decoration: none;
    transition: color 0.2s ease;
}

.page-header .breadcrumb-link:hover {
    color: var(--accent-hover);
    text-decoration: underline;
}

.page-header .breadcrumb-current {
    color: var(--text-primary);
    font-weight: 500;
}

/* Hero Section */
.hero-section {
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--border-color);
}

.hero-tagline {
    font-size: 1.3em;
    color: var(--accent-color);
    font-weight: 500;
    margin-bottom: 2rem;
    text-align: left;
}

.hero-description {
    font-size: 1.1em;
    max-width: 700px;
    margin: 0 0 2rem 0;
    text-align: left;
}

.core-principles {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 1.5rem;
    margin-top: 2rem;
}

.core-principles h3 {
    color: var(--text-primary);
    margin-bottom: 1rem;
    font-size: 1.25rem;
    font-weight: 600;
}

.core-principles ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.core-principles li {
    color: var(--text-secondary);
    margin-bottom: 0.75rem;
    padding-left: 1.5rem;
    position: relative;
    line-height: 1.6;
}

.core-principles li:before {
    content: "•";
    color: var(--accent-color);
    font-weight: bold;
    position: absolute;
    left: 0;
    top: 0;
}

/* Explore Section */
.explore-section {
    text-align: left;
}

.explore-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.explore-card {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 2rem;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.explore-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px var(--shadow-color);
}

.explore-card h3 {
    color: var(--text-primary);
    margin-bottom: 1rem;
    font-size: 1.25rem;
    font-weight: 600;
}

.explore-card p {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.url-note {
    font-size: 0.8em;
    color: var(--text-secondary);
    margin-top: 1rem;
    font-family: monospace;
    background-color: var(--bg-tertiary);
    padding: 0.5rem;
    border-radius: 4px;
    border: 1px solid var(--border-color);
}

/* Quick Access Section */
.quick-access-section {
    text-align: center;
}

.quick-links {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1rem;
    margin-top: 2rem;
}

.quick-link {
    display: flex;
    align-items: center;
    padding: 1rem;
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    transition: all 0.2s ease-in-out;
    text-decoration: none;
}

.quick-link:hover {
    background-color: var(--accent-color);
    color: white;
    transform: translateY(-1px);
    box-shadow: 0 2px 8px var(--shadow-color);
}

.link-icon {
    font-size: 1.5em;
    margin-right: 1rem;
    flex-shrink: 0;
}

.link-text {
    font-weight: 500;
}

/* Future Section */
.future-section {
    text-align: left;
}

.future-preview {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.future-item {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 1.5rem;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.future-item:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px var(--shadow-color);
}

.future-item h3 {
    color: var(--text-primary);
    margin-bottom: 1rem;
    font-size: 1.1rem;
    font-weight: 600;
}

.future-item p {
    color: var(--text-secondary);
    line-height: 1.6;
    margin: 0;
}

/* Button Styles */
.button, .btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 6px;
    font-size: 1rem;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    transition: all 0.2s ease;
    text-align: center;
    color: var(--text-primary);
}

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

.button.primary:hover, .btn-primary:hover {
    background-color: var(--accent-hover);
    transform: translateY(-1px);
    box-shadow: 0 4px 8px var(--shadow-color);
}

.button.secondary, .btn-secondary {
    background-color: var(--bg-tertiary);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.button.secondary:hover, .btn-secondary:hover {
    background-color: var(--border-color);
    transform: translateY(-1px);
    box-shadow: 0 4px 8px var(--shadow-color);
}

/* Persona Styles */
.personas-list {
    max-width: 865px;
    padding: 0rem 0rem;
    margin: 0 auto;
}

.persona-item {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 1.5rem;
    margin-bottom: 1.5rem;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.persona-item:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px var(--shadow-color);
}

.persona-title {
    font-size: 1.5em;
    font-weight: 600;
    color: var(--accent-color);
    margin-bottom: 0.5rem;
}

.persona-name {
    font-size: 1.2em;
    color: var(--text-primary);
    font-weight: 500;
}

.persona-status {
    background-color: var(--success-color);
    color: var(--version-badge-text);
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.8em;
    font-weight: 600;
    text-transform: uppercase;
}

.persona-description {
    margin-bottom: 1.5rem;
    line-height: 1.6;
    color: var(--text-secondary);
}

.persona-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.9em;
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    flex-wrap: wrap;
    gap: 1rem;
}

.persona-constructs {
    background-color: var(--bg-tertiary);
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-weight: 500;
    color: var(--text-primary);
}

.persona-actions {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.persona-link {
    display: inline-flex;
    align-items: center;
    padding: 0.75rem 1.5rem;
    background-color: var(--accent-color);
    color: white;
    text-decoration: none;
    border-radius: 6px;
    font-weight: 500;
    transition: all 0.2s ease-in-out;
}

.persona-link:hover {
    background-color: var(--accent-hover);
    transform: translateY(-1px);
    box-shadow: 0 2px 8px var(--shadow-color);
    text-decoration: none;
    color: white;
}

.persona-link.secondary {
    background-color: var(--success-color);
}

.persona-link.secondary:hover {
    background-color: var(--success-color);
    opacity: 0.9;
}

.persona-info {
    max-width: 800px;
    margin: 0 auto 2rem;
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 2rem;
}

.statement-container {
    max-width: 1000px;
    margin: 0 auto;
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 8px var(--shadow-color);
}

.statement-header {
    background-color: var(--accent-color);
    color: white;
    padding: 1.5rem;
    text-align: center;
}

.statement-header h2 {
    margin: 0;
    color: white;
}

.statement-frame {
    width: 100%;
    height: 70vh;
    border: none;
    min-height: 600px;
}

/* Construct Styles */
.construct-item {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 1.5rem;
    margin-bottom: 1.5rem;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.construct-item:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px var(--shadow-color);
}

.construct-meta {
    font-size: 0.9em;
    color: var(--text-secondary);
    margin-bottom: 1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.construct-title {
    font-size: 1.3em;
    font-weight: 600;
    color: var(--accent-color);
    margin-bottom: 0.5rem;
}

.construct-title a {
    color: var(--accent-color);
    text-decoration: none;
    transition: color 0.2s ease;
}

.construct-title a:hover {
    color: var(--accent-hover);
    text-decoration: underline;
}

.construct-description {
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 1rem;
}

.construct-author {
    font-weight: 600;
    color: var(--accent-color);
}

.construct-platform {
    background-color: var(--bg-tertiary);
    color: var(--text-primary);
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
}

.construct-type {
    background-color: var(--bg-tertiary);
    color: var(--text-primary);
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
}

.construct-series {
    background: var(--construct-series-bg);
    color: var(--construct-series-text);
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    font-size: 0.75rem;
    font-weight: 600;
}

.construct-branch {
    background: var(--construct-branch-bg);
    color: var(--construct-branch-text);
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
}

.no-constructs,
.no-personas {
    text-align: center;
    padding: 3rem 1rem;
    color: var(--text-secondary);
}

.no-constructs h3,
.no-personas h3 {
    color: var(--text-primary);
    margin-bottom: 1rem;
}

.no-constructs p,
.no-personas p {
    color: var(--text-secondary);
    margin-bottom: 1rem;
}

.filter-notice {
    background-color: var(--alpha-bg);
    border: 1px solid var(--alpha-color);
    border-radius: 8px;
    padding: 1rem;
    margin-bottom: 2rem;
    text-align: center;
}

.filter-notice a {
    color: var(--accent-color);
    text-decoration: none;
    font-weight: 500;
}

.filter-notice a:hover {
    text-decoration: underline;
}

/* Filter Controls */
.filter-controls {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 1.5rem;
    margin-bottom: 2rem;
}

.filter-row {
    display: flex;
    gap: 1rem;
    align-items: end;
    margin-bottom: 1rem;
}

.filter-row:last-child {
    margin-bottom: 0;
}

.filter-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    min-width: 120px;
}

.filter-group label {
    font-weight: 600;
    color: var(--text-muted);
    font-size: 0.875rem;
}

.filter-select {
    padding: 0.5rem;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    background: var(--bg-primary);
    font-size: 0.875rem;
    min-width: 120px;
    color: var(--text-primary);
}

.filter-select:focus {
    outline: none;
    border-color: var(--accent-color);
    box-shadow: 0 0 0 2px var(--accent-color);
    opacity: 0.25;
}

.filter-actions {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-left: auto;
}

.results-count {
    font-weight: 600;
    color: var(--text-secondary);
    font-size: 0.875rem;
}

/* Construct Author Links */
.construct-author-link {
    color: var(--accent-color);
    text-decoration: none;
    font-weight: 600;
    transition: color 0.2s ease;
}

.construct-author-link:hover {
    color: var(--accent-hover);
    text-decoration: underline;
}

.construct-author-link:focus {
    outline: 2px solid var(--accent-color);
    outline-offset: 2px;
    border-radius: 2px;
}

/* Responsive filter controls */
@media (max-width: 768px) {
    main {
        padding: 1rem;
    }
    
    section {
        padding: 2rem 1rem;
    }
    
    .explore-grid,
    .quick-links,
    .future-preview {
        grid-template-columns: 1fr;
    }
    
    /* Header layout adjustments */
    header {
        padding: 1rem 0 2rem 0;
    }
    
    header h1 {
        margin-top: 3rem;
        font-size: 2em;
    }
    
    .alpha-badge {
        position: absolute;
        top: 1rem;
        right: 1rem;
        font-size: 0.75rem;
        padding: 0.4rem 0.8rem;
    }
    
    .theme-toggle {
        position: absolute;
        top: 1rem;
        right: 5rem;
    }
    
    .theme-toggle-btn {
        width: 35px;
        height: 35px;
        font-size: 1rem;
    }
    
    h2 {
        font-size: 1.6em;
    }
    
    .results-count {
        text-align: center;
    }
    
    .modal-content {
        margin: 10% auto;
        width: 95%;
        max-height: 75vh;
    }
    
    .modal-header {
        padding: 1rem;
    }
    
    .modal-body {
        padding: 1.5rem;
    }
    
    .persona-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 1rem;
    }
    
    .persona-meta {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.5rem;
    }
    
    .persona-actions {
        flex-direction: column;
    }
    
    .construct-meta {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .statement-frame {
        height: 60vh;
        min-height: 500px;
    }
    
    .filter-row {
        flex-direction: column;
        gap: 1rem;
    }
    
    .filter-group {
        min-width: 100%;
    }
    
    .filter-select {
        min-width: 100%;
    }
    
    .filter-actions {
        margin-left: 0;
        justify-content: space-between;
        width: 100%;
    }
}

@media (max-width: 480px) {
    /* Header layout for very small screens */
    header {
        padding: 0.5rem 0 1.5rem 0;
    }
    
    header h1 {
        margin-top: 2.5rem;
        font-size: 1.8em;
    }
    
    .alpha-badge {
        position: absolute;
        top: 0.5rem;
        right: 0.5rem;
        font-size: 0.7rem;
        padding: 0.3rem 0.6rem;
    }
    
    .theme-toggle {
        position: absolute;
        top: 0.5rem;
        right: 4rem;
    }
    
    .theme-toggle-btn {
        width: 30px;
        height: 30px;
        font-size: 0.9rem;
    }
    
    .filter-controls {
        padding: 1rem;
    }
    
    .filter-actions {
        flex-direction: column;
        gap: 0.5rem;
        align-items: stretch;
    }
    
    .results-count {
        text-align: center;
    }
    
    .modal-content {
        margin: 5% auto;
        width: 98%;
        max-height: 85vh;
    }
    
    .modal-header {
        padding: 0.75rem;
    }
    
    .modal-body {
        padding: 1rem;
    }
}

/* Version Selector */
.version-selector {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 1.5rem;
    margin-bottom: 2rem;
}

.version-controls {
    display: flex;
    gap: 1rem;
    align-items: end;
    margin-bottom: 1rem;
}

.branch-selector,
.version-selector {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    min-width: 200px;
}

.branch-selector label,
.version-selector label {
    font-weight: 600;
    color: var(--text-secondary);
    font-size: 0.875rem;
}

.version-select {
    padding: 0.5rem;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    background: var(--bg-primary);
    font-size: 0.875rem;
    color: var(--text-primary);
}

.version-select:focus {
    outline: none;
    border-color: var(--accent-color);
    box-shadow: 0 0 0 2px var(--accent-color);
    opacity: 0.25;
}

.version-info {
    border-top: 1px solid var(--border-color);
    padding-top: 1rem;
}

.version-info h3 {
    margin: 0 0 0.5rem 0;
    color: var(--text-primary);
    font-size: 1.25rem;
}

.version-description {
    margin: 0 0 1rem 0;
    color: var(--text-secondary);
    line-height: 1.5;
}

.version-meta {
    display: flex;
    gap: 1rem;
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.version-date,
.version-changes {
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

.version-status {
    font-weight: 600;
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    font-size: 0.75rem;
    text-transform: uppercase;
}

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

.status-completed {
    background: var(--text-secondary);
    color: white;
}

.status-experimental {
    background: var(--warning-color);
    color: var(--text-primary);
}

/* Statement Version Badges */
.statement-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.statement-version {
    display: flex;
    gap: 0.5rem;
}

.version-badge,
.branch-badge {
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
}

.version-badge {
    background: var(--version-badge-bg);
    color: var(--version-badge-text);
}

.branch-badge {
    background: var(--branch-badge-bg);
    color: var(--branch-badge-text);
}

/* Version History */
.version-history {
    background-color: var(--bg-secondary);
    border-radius: 8px;
    padding: 2rem;
    margin: 2rem 0;
}

.version-history-header {
    margin-bottom: 2rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--border-color);
}

.version-history-title {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
    flex-wrap: wrap;
    gap: 1rem;
}

.version-history-title h3 {
    margin: 0;
    color: var(--text-primary);
    font-size: 1.5rem;
}

.version-history-title .button {
    margin: 0;
    white-space: nowrap;
}

.persona-summary {
    background-color: var(--bg-primary);
    border-radius: 6px;
    padding: 1rem;
    border: 1px solid var(--border-color);
}

.persona-summary .persona-meta {
    display: flex;
    gap: 1.5rem;
    flex-wrap: wrap;
    align-items: center;
}

.persona-summary .persona-meta > div {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.9rem;
}

.persona-summary .persona-status {
    background-color: var(--success-color);
    color: var(--version-badge-text);
    padding: 0.25rem 0.75rem;
    border-radius: 12px;
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
}

.persona-summary .persona-constructs {
    background-color: var(--accent-color);
    color: var(--version-badge-text);
    padding: 0.25rem 0.75rem;
    border-radius: 12px;
    font-size: 0.8rem;
    font-weight: 600;
}

.version-tree {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.branch-section {
    background-color: var(--bg-primary);
    border-radius: 6px;
    padding: 1.5rem;
    border: 1px solid var(--border-color);
}

.branch-section h4 {
    margin: 0 0 0.5rem 0;
    color: var(--text-primary);
    font-size: 1.2rem;
}

.branch-description {
    color: var(--text-secondary);
    margin: 0 0 1rem 0;
    font-size: 0.9rem;
}

.version-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.version-item {
    background-color: var(--bg-secondary);
    border-radius: 6px;
    padding: 1rem;
    border: 1px solid var(--border-color);
    transition: all 0.2s ease;
}

.version-item:hover {
    box-shadow: 0 2px 8px var(--shadow-color);
    transform: translateY(-1px);
}

.version-item.current {
    border-color: var(--accent-color);
    background-color: rgba(0, 123, 255, 0.05);
}

.version-info {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 1rem;
}

.version-info-left {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.version-info-right {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
    align-items: flex-end;
    text-align: right;
}

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

.version-id {
    color: var(--text-secondary);
    font-size: 0.8rem;
    font-family: monospace;
}

.version-date {
    color: var(--text-secondary);
    font-size: 0.8rem;
}

.version-status-badge {
    padding: 0.25rem 0.75rem;
    border-radius: 12px;
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
}

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

.status-completed {
    background-color: var(--text-secondary);
    color: white;
}

.status-experimental {
    background-color: var(--warning-color);
    color: var(--text-primary);
}

.version-actions {
    display: flex;
    gap: 0.75rem;
    flex-wrap: wrap;
}

.version-action {
    padding: 0.5rem 1rem;
    border-radius: 6px;
    font-size: 0.85rem;
    font-weight: 500;
    text-decoration: none;
    transition: all 0.2s ease;
    border: 1px solid var(--border-color);
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.version-action.load {
    background-color: var(--accent-color);
    color: white;
    border-color: var(--accent-color);
}

.version-action.load:hover {
    background-color: var(--accent-hover);
    transform: translateY(-1px);
    box-shadow: 0 2px 4px var(--shadow-color);
}

.version-action.open {
    background-color: var(--bg-primary);
    color: var(--text-primary);
    border-color: var(--border-color);
}

.version-action.open:hover {
    background-color: var(--bg-secondary);
    border-color: var(--accent-color);
    color: var(--accent-color);
}

.version-action.current {
    background-color: var(--success-color);
    color: white;
    border-color: var(--success-color);
    cursor: default;
}

.version-action.current:hover {
    transform: none;
    box-shadow: none;
}

/* Responsive adjustments for version actions */
@media (max-width: 768px) {
    .version-history {
        padding: 1.5rem;
    }
    
    .version-history-header {
        margin-bottom: 1.5rem;
    }
    
    .persona-summary .persona-meta {
        gap: 1rem;
    }
    
    .version-info {
        flex-direction: column;
        gap: 0.5rem;
    }
    
    .version-info-right {
        align-items: flex-start;
        text-align: left;
    }
    
    .version-actions {
        gap: 0.5rem;
    }
    
    .version-action {
        padding: 0.4rem 0.8rem;
        font-size: 0.8rem;
    }
}

@media (max-width: 480px) {
    .version-history {
        padding: 1rem;
    }
    
    .persona-summary .persona-meta {
        flex-direction: column;
        gap: 0.5rem;
        align-items: flex-start;
    }
    
    .version-actions {
        flex-direction: column;
        width: 100%;
    }
    
    .version-action {
        justify-content: center;
        width: 100%;
    }
}

/* Theme Toggle Button */
.theme-toggle {
    position: absolute;
    top: 1rem;
    right: 12rem;
}

.theme-toggle-btn {
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 50%;
    width: 40px;
    height: 40px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
    font-size: 1.2rem;
}

.theme-toggle-btn:hover {
    background: var(--border-color);
    transform: scale(1.1);
}

.theme-icon {
    transition: opacity 0.3s ease;
}

.theme-icon.light {
    opacity: 1;
}

.theme-icon.dark {
    opacity: 0;
}

[data-theme="dark"] .theme-icon.light {
    opacity: 0;
}

[data-theme="dark"] .theme-icon.dark {
    opacity: 1;
}

/* Responsive breadcrumb */
@media (max-width: 768px) {
    .page-header .breadcrumb {
        padding: 0.2rem 0;
        font-size: 0.8rem;
    }
    
    .page-header .breadcrumb-list {
        gap: 0.25rem;
    }
    
    .page-header .breadcrumb-item:not(:last-child)::after {
        margin-left: 0.25rem;
    }
}

@media (max-width: 480px) {
    .page-header .breadcrumb {
        padding: 0.15rem 0;
        font-size: 0.75rem;
    }
}

.site-logo {
    display: flex;
    align-items: center;
    gap: 0.5em;
    margin-left: 1.5rem;
}

.ooi-logo-img {
    height: 48px;
    width: 48px;
    border-radius: 50%;
    background: transparent;
    display: block;
}

.ooi-edition {
    font-size: 2rem;
    font-weight: bold;
    color: var(--accent-color);
    letter-spacing: 0.1em;
    margin-left: 0.2em;
}

@media (max-width: 768px) {
    .site-logo {
        margin-left: 1rem;
    }
    .ooi-logo-img {
        height: 36px;
        width: 36px;
    }
    .ooi-edition {
        font-size: 1.3rem;
    }
}

@media (max-width: 480px) {
    .site-logo {
        margin-left: 0.5rem;
    }
    .ooi-logo-img {
        height: 28px;
        width: 28px;
    }
    .ooi-edition {
        font-size: 1rem;
    }
}