/* Paper-Specific Styles for "Life as the Radical Norm"
   Clean white theme with light gray borders that turn sky blue on hover */

/* Override base variables for paper theme */
:root {
    /* Clean white theme */
    --color-bg-primary: #ffffff;
    --color-bg-secondary: #fafafa;
    --color-bg-tertiary: #f5f5f5;
    
    /* Text colors */
    --color-text-primary: #1a1a1a;
    --color-text-secondary: #4a4a4a;
    --color-text-light: #666666;
    
    /* Accent colors */
    --color-accent: #75b6f3; /* Sky blue for hover states */
    --color-accent-light: #e8f4fd;
    --color-border: #e0e0e0; /* Light gray borders */
    --color-border-hover: #75b6f3; /* Sky blue on hover */
    
    /* Typography */
    --font-primary: 'Crimson Text', serif; /* For headings and body text */
    --font-secondary: 'Inter', sans-serif; /* For UI elements */
    
    /* Spacing */
    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 1.5rem;
    --space-lg: 2.5rem;
    --space-xl: 4rem;
    --space-xxl: 6rem;
}

/* Reset body for clean paper look */
body {
    background-color: var(--color-bg-primary);
    color: var(--color-text-primary);
    font-family: var(--font-primary);
    line-height: 1.7;
    margin: 0;
    padding: 0;
}

/* Paper container */
/* Paper Layout with Sidebar */
.paper-layout {
    display: flex;
    max-width: 1400px;
    margin: 0 auto;
    padding: var(--space-lg) var(--space-md);
    gap: var(--space-lg);
    position: relative;
}

/* Sidebar Navigation */
.paper-sidebar {
    width: 280px;
    flex-shrink: 0;
    position: sticky;
    top: 80px;
    height: calc(100vh - 100px);
    overflow-y: auto;
    padding: var(--space-md);
    background-color: white;
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
}

.paper-sidebar::-webkit-scrollbar {
    width: 6px;
}

.paper-sidebar::-webkit-scrollbar-track {
    background: var(--color-bg-secondary);
    border-radius: 3px;
}

.paper-sidebar::-webkit-scrollbar-thumb {
    background: #75b6f3;
    border-radius: 3px;
}

.paper-sidebar::-webkit-scrollbar-thumb:hover {
    background: #5aa0e8;
}

.sidebar-title {
    font-family: 'Inter', sans-serif;
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: var(--space-md);
    color: var(--color-text-primary);
    padding-bottom: var(--space-xs);
    border-bottom: 2px solid var(--color-primary);
}

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

.sidebar-nav-item {
    margin-bottom: var(--space-xs);
}

.sidebar-nav-link {
    display: block;
    padding: var(--space-xs) var(--space-sm);
    color: var(--color-text-secondary);
    text-decoration: none;
    font-size: 0.9rem;
    line-height: 1.4;
    border-left: 3px solid transparent;
    transition: all 0.2s ease;
    border-radius: 0 var(--border-radius) var(--border-radius) 0;
}

.sidebar-nav-link:hover {
    background-color: var(--color-bg-secondary);
    color: var(--color-text-primary);
    border-left-color: #75b6f3;
    padding-left: calc(var(--space-sm) + 4px);
}

.sidebar-nav-link.active {
    background-color: rgba(117, 182, 243, 0.1);
    color: var(--color-primary);
    border-left-color: var(--color-primary);
    font-weight: 600;
}

.sidebar-section-number {
    display: inline-block;
    min-width: 30px;
    font-weight: 600;
    color: var(--color-primary);
}

/* Sidebar Download Button */
.sidebar-download-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-xs);
    width: 100%;
    padding: 10px var(--space-sm);
    margin-bottom: var(--space-md);
    background-color: white;
    color: var(--color-text-primary);
    text-decoration: none;
    font-family: 'Inter', sans-serif;
    font-weight: 500;
    font-size: 0.85rem;
    border-radius: var(--border-radius);
    border: 1px solid #d0d0d0;
    transition: all 0.3s ease;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.06);
}

.sidebar-download-btn:hover {
    background-color: #f8f9fa;
    border-color: #75b6f3;
    color: #75b6f3;
    transform: translateY(-1px);
    box-shadow: 0 2px 6px rgba(117, 182, 243, 0.15);
}

.sidebar-download-btn svg {
    transition: transform 0.3s ease;
    stroke: currentColor;
}

.sidebar-download-btn:hover svg {
    transform: translateY(2px);
}

.paper-container {
    flex: 1;
    max-width: 900px;
    padding: var(--space-xl) var(--space-lg);
    background-color: var(--color-bg-primary);
    box-shadow: 0 0 0 1px var(--color-border);
    position: relative;
}

/* Paper header with clouds */
.paper-header {
    position: relative;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    margin: calc(-1 * var(--space-xl)) calc(-1 * var(--space-lg)) var(--space-xl);
    padding: var(--space-xxl) var(--space-lg) var(--space-xl);
    overflow: hidden;
    border-bottom: 1px solid var(--color-border);
}

/* Enhanced cloud animation for paper header */
.paper-header .clouds-animation {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
    z-index: 1;
    opacity: 0.3;
}

.paper-header .cloud {
    background: rgba(255, 255, 255, 0.9);
    border-radius: 50px;
    filter: blur(8px);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

/* Paper title */
.paper-title {
    font-size: 2.8rem;
    font-weight: 600;
    line-height: 1.2;
    margin-bottom: var(--space-sm);
    color: var(--color-text-primary);
    text-align: center;
    position: relative;
    z-index: 2;
}

.paper-subtitle {
    font-size: 1.4rem;
    font-weight: 400;
    line-height: 1.4;
    margin-bottom: var(--space-lg);
    color: var(--color-text-secondary);
    text-align: center;
    font-style: italic;
    position: relative;
    z-index: 2;
}

/* Author information */
.paper-meta {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: var(--space-sm);
    margin-bottom: var(--space-lg);
    padding: var(--space-md) var(--space-lg);
    background-color: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: 8px;
    position: relative;
    z-index: 2;
    max-width: 900px;
    margin-left: auto;
    margin-right: auto;
}

.paper-meta-item {
    display: flex;
    flex-direction: column;
    gap: 0.15rem;
}

.paper-meta-label {
    font-weight: 600;
    color: var(--color-text-secondary);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.8px;
}

.paper-meta-value {
    color: var(--color-text-primary);
    font-size: 0.9rem;
    line-height: 1.4;
}

/* Abstract section */
.abstract {
    margin: var(--space-md) 0 var(--space-lg) 0;
    padding: var(--space-lg);
    background-color: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: 8px;
    position: relative;
}

.abstract::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--color-accent), transparent);
}

.abstract-title {
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: var(--space-md);
    color: var(--color-text-primary);
}

.abstract-text {
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--color-text-primary);
    text-align: justify;
}

/* Section headings */
.section-title {
    font-size: 2rem;
    font-weight: 600;
    margin: var(--space-lg) 0 var(--space-md);
    color: var(--color-text-primary);
    border-bottom: 2px solid var(--color-border);
    padding-bottom: var(--space-sm);
    position: relative;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 60px;
    height: 2px;
    background-color: var(--color-accent);
}

/* Subsection headings */
.subsection-title {
    font-size: 1.5rem;
    font-weight: 600;
    margin: var(--space-lg) 0 var(--space-sm);
    color: var(--color-text-primary);
}

.subsubsection-title {
    font-size: 1.2rem;
    font-weight: 600;
    margin: var(--space-lg) 0 var(--space-sm);
    color: var(--color-text-primary);
}

/* Body text */
.paper-content p {
    margin-bottom: var(--space-md);
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--color-text-primary);
}

/* Lists */
.paper-content ul, .paper-content ol {
    margin: var(--space-md) 0;
    padding-left: var(--space-lg);
}

.paper-content li {
    margin-bottom: var(--space-sm);
    font-size: 1.1rem;
    line-height: 1.7;
    color: var(--color-text-primary);
}

/* Emphasis */
.paper-content strong {
    font-weight: 600;
    color: var(--color-text-primary);
}

.paper-content em {
    font-style: italic;
    color: var(--color-text-secondary);
}

/* Figures and images */
.figure-container {
    margin: var(--space-xl) 0;
    text-align: center;
    padding: var(--space-md);
    background-color: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: 8px;
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.figure-container:hover {
    border-color: var(--color-border-hover);
    box-shadow: 0 4px 12px rgba(117, 182, 243, 0.1);
}

.figure-container img {
    max-width: 100%;
    height: auto;
    border-radius: 4px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.figure-caption {
    margin-top: var(--space-sm);
    font-size: 0.95rem;
    color: var(--color-text-secondary);
    font-style: italic;
    text-align: center;
}

/* Graph containers */
.graph-container {
    margin: var(--space-xl) 0;
    padding: var(--space-md);
    background-color: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: 8px;
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.graph-container:hover {
    border-color: var(--color-border-hover);
    box-shadow: 0 4px 12px rgba(117, 182, 243, 0.1);
}

.graph-container img {
    width: 100%;
    height: auto;
    border-radius: 4px;
}

/* Navigation updates for paper theme */
.site-header {
    background-color: rgba(255, 255, 255, 0.95);
    border-bottom: 1px solid var(--color-border);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.nav-links a {
    color: var(--color-text-primary);
    border-bottom: 2px solid transparent;
    transition: all 0.3s ease;
}

.nav-links a:hover,
.nav-links a.active {
    color: var(--color-accent);
    border-bottom-color: var(--color-accent);
}

.logo .eco {
    color: var(--color-text-primary);
}

.logo .art {
    color: var(--color-accent);
}

/* Print styles */
@media print {
    .paper-container {
        max-width: none;
        margin: 0;
        padding: 0;
        box-shadow: none;
        background: white;
    }
    
    .paper-header {
        background: white;
        margin: 0 0 2rem;
        padding: 0 0 2rem;
        border-bottom: 2px solid #000;
    }
    
    .paper-header .clouds-animation {
        display: none;
    }
    
    .paper-title {
        font-size: 2.2rem;
        color: #000;
    }
    
    .paper-subtitle {
        font-size: 1.2rem;
        color: #333;
    }
    
    .paper-meta {
        background: white;
        border: 1px solid #000;
    }
    
    .abstract {
        background: white;
        border: 1px solid #000;
    }
    
    .figure-container,
    .graph-container {
        background: white;
        border: 1px solid #000;
        break-inside: avoid;
    }
    
    .section-title {
        break-after: avoid;
        page-break-after: avoid;
    }
    
    a {
        color: #000;
        text-decoration: underline;
    }
    
    .site-header {
        display: none;
    }
}

/* Table of Contents */
.paper-toc {
    background-color: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: 8px;
    padding: var(--space-lg);
    margin-bottom: var(--space-xl);
}

.toc-title {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: var(--space-md);
    color: var(--color-text-primary);
}

.toc-list {
    list-style-position: inside;
    counter-reset: toc-counter;
}

.toc-list li {
    counter-increment: toc-counter;
    margin-bottom: var(--space-sm);
    font-size: 1.05rem;
    line-height: 1.6;
}

.toc-list li::marker {
    font-weight: 600;
    color: var(--color-accent);
}

.toc-list a {
    color: var(--color-text-primary);
    text-decoration: none;
    border-bottom: 1px solid transparent;
    transition: all 0.3s ease;
    padding-bottom: 2px;
}

.toc-list a:hover {
    color: var(--color-accent);
    border-bottom-color: var(--color-accent);
}

/* Subsubsection titles */
.subsubsection-title {
    font-size: 1.1rem;
    font-weight: 600;
    margin: var(--space-md) 0 var(--space-sm);
    color: var(--color-text-primary);
    font-style: italic;
}

/* Responsive design */
@media (max-width: 1024px) {
    .paper-layout {
        flex-direction: column;
    }
    
    .paper-sidebar {
        position: static;
        width: 100%;
        height: auto;
        max-height: 400px;
        margin-bottom: var(--space-md);
    }
    
    .paper-container {
        max-width: 100%;
    }
}

@media (max-width: 768px) {
    .paper-container {
        padding: var(--space-lg) var(--space-md);
    }
    
    .paper-sidebar {
        max-height: 300px;
    }
    
    .paper-header {
        margin: calc(-1 * var(--space-lg)) calc(-1 * var(--space-md)) var(--space-lg);
        padding: var(--space-xl) var(--space-md) var(--space-lg);
    }
    
    .paper-title {
        font-size: 2.2rem;
    }
    
    .paper-subtitle {
        font-size: 1.2rem;
    }
    
    .paper-meta {
        grid-template-columns: 1fr;
    }
    
    .section-title {
        font-size: 1.6rem;
    }
    
    .subsection-title {
        font-size: 1.3rem;
    }
}

@media (max-width: 480px) {
    .paper-title {
        font-size: 1.8rem;
    }
    
    .paper-subtitle {
        font-size: 1.1rem;
    }
    
    .paper-content p {
        font-size: 1rem;
    }
}