:root {
    /* Color Palette - Refined library/academic theme */
    --color-primary: #1a3a52;
    --color-primary-dark: #0f2537;
    --color-secondary: #8b6f47;
    --color-accent: #c89f6c;
    --color-text: #2c2c2c;
    --color-text-light: #5a5a5a;
    --color-background: #faf8f5;
    --color-background-alt: #f0ede7;
    --color-border: #d4cdc3;
    --color-white: #ffffff;
    
    /* Typography */
    --font-display: 'Crimson Text', 'Georgia', serif;
    --font-body: 'Source Sans Pro', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 3rem;
    --spacing-xl: 4rem;
    
    /* Effects */
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.12);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-body);
    color: var(--color-text);
    background-color: var(--color-background);
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Import Google Fonts */
@import url('https://fonts.googleapis.com/css2?family=Crimson+Text:ital,wght@0,400;0,600;0,700;1,400&family=Source+Sans+Pro:ital,wght@0,300;0,400;0,600;0,700;1,400&display=swap');

/* Accessibility - Skip Link */
.skip-link {
    position: absolute;
    top: -40px;
    left: 0;
    background: var(--color-primary);
    color: var(--color-white);
    padding: var(--spacing-xs) var(--spacing-md);
    text-decoration: none;
    z-index: 100;
    border-radius: 0 0 4px 0;
    font-weight: 600;
}

.skip-link:focus {
    top: 0;
}

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

/* Header */
header {
    background: linear-gradient(135deg, var(--color-primary-dark) 0%, var(--color-primary) 100%);
    color: var(--color-white);
    padding: var(--spacing-xl) 0 var(--spacing-lg);
    text-align: center;
    position: relative;
    overflow: hidden;
}

header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        linear-gradient(45deg, transparent 48%, rgba(255,255,255,0.03) 49%, rgba(255,255,255,0.03) 51%, transparent 52%),
        linear-gradient(-45deg, transparent 48%, rgba(255,255,255,0.03) 49%, rgba(255,255,255,0.03) 51%, transparent 52%);
    background-size: 40px 40px;
    opacity: 0.5;
    pointer-events: none;
}

.header-content {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-md);
    flex-wrap: wrap;
    position: relative;
}

.site-logo {
    width: 120px;
    height: 120px;
    animation: fadeInDown 0.8s ease-out;
}

.header-text {
    text-align: center;
}

.site-title {
    font-family: var(--font-display);
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 700;
    margin-bottom: var(--spacing-xs);
    letter-spacing: 0.02em;
    position: relative;
    animation: fadeInDown 0.8s ease-out;
}

.site-subtitle {
    font-family: var(--font-body);
    font-size: clamp(1rem, 2.5vw, 1.25rem);
    font-weight: 300;
    opacity: 0.95;
    position: relative;
    animation: fadeInUp 0.8s ease-out 0.2s both;
}

/* Navigation */
nav {
    background-color: var(--color-white);
    box-shadow: var(--shadow-sm);
    /*position: sticky;*/
    top: 0;
    z-index: 50;
}

.nav-list {
    list-style: none;
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm) 0;
}

.nav-link {
    display: block;
    padding: var(--spacing-xs) var(--spacing-md);
    color: var(--color-text);
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
    border-radius: 4px;
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 4px;
    left: 50%;
    transform: translateX(-50%) scaleX(0);
    width: 80%;
    height: 2px;
    background-color: var(--color-primary);
    transition: transform 0.3s ease;
}

.nav-link:hover,
.nav-link:focus {
    color: var(--color-primary);
    background-color: var(--color-background-alt);
}

.nav-link:hover::after,
.nav-link:focus::after {
    transform: translateX(-50%) scaleX(1);
}

/* Main Content */
main {
    padding: var(--spacing-xl) 0;
}

/* Sections */
section {
    margin-bottom: var(--spacing-xl);
}

.section-title {
    font-family: var(--font-display);
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    color: var(--color-primary);
    margin-bottom: var(--spacing-md);
    line-height: 1.3;
    font-weight: 700;
}

/* Hero Section */
.hero {
    background: linear-gradient(to bottom, var(--color-white), var(--color-background-alt));
    padding: var(--spacing-xl) var(--spacing-md);
    border-radius: 8px;
    box-shadow: var(--shadow-md);
    animation: fadeIn 1s ease-out;
}

.hero-content {
    max-width: 900px;
    margin: 0 auto;
}

.lead-text {
    font-size: clamp(1.125rem, 2.5vw, 1.35rem);
    font-weight: 600;
    color: var(--color-primary);
    margin-bottom: var(--spacing-md);
    line-height: 1.6;
}

.hero-content p {
    margin-bottom: var(--spacing-md);
    font-size: 1.125rem;
}

/* CTA Button */
.cta-button {
    display: inline-block;
    background: linear-gradient(135deg, var(--color-secondary), var(--color-accent));
    color: var(--color-white);
    padding: var(--spacing-sm) var(--spacing-lg);
    text-decoration: none;
    border-radius: 50px;
    font-weight: 700;
    font-size: 1.125rem;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    margin-top: var(--spacing-sm);
    position: relative;
    overflow: hidden;
}

.cta-button::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.2);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.cta-button:hover::before {
    width: 300px;
    height: 300px;
}

.cta-button:hover,
.cta-button:focus {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

/* Content Sections */
.content-section {
    background-color: var(--color-white);
    padding: var(--spacing-lg) var(--spacing-md);
    border-radius: 8px;
    box-shadow: var(--shadow-sm);
    border-left: 4px solid var(--color-accent);
}

.text-content p {
    margin-bottom: var(--spacing-md);
    line-height: 1.8;
    font-size: 1.0625rem;
}

.text-content p:last-child {
    margin-bottom: 0;
}

/* Footnotes */
.footnotes {
    margin-top: var(--spacing-lg);
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--color-border);
    font-size: 0.9375rem;
}

.footnotes hr {
    display: none;
}

.footnotes ol {
    padding-left: var(--spacing-md);
}

.footnotes li {
    margin-bottom: var(--spacing-sm);
    color: var(--color-text-light);
}

.footnotes cite {
    font-style: italic;
}

.footnotes a {
    color: var(--color-primary);
    text-decoration: none;
    margin-left: var(--spacing-xs);
}

.footnotes a:hover,
.footnotes a:focus {
    text-decoration: underline;
}

sup a {
    color: var(--color-primary);
    text-decoration: none;
    font-weight: 600;
}

sup a:hover,
sup a:focus {
    text-decoration: underline;
}

/* Forum Section */
.forum-section {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    padding: var(--spacing-xl) var(--spacing-md);
    border-radius: 12px;
    box-shadow: var(--shadow-lg);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.forum-section::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255,255,255,0.05) 0%, transparent 70%);
    animation: rotate 30s linear infinite;
}

.forum-box {
    position: relative;
    z-index: 1;
    max-width: 700px;
    margin: 0 auto;
}

.forum-section .section-title {
    color: var(--color-white);
    margin-bottom: var(--spacing-md);
}

.forum-section p {
    color: rgba(255, 255, 255, 0.95);
    font-size: 1.125rem;
    margin-bottom: var(--spacing-lg);
    line-height: 1.7;
}

.forum-button {
    display: inline-block;
    background-color: var(--color-accent);
    color: var(--color-primary-dark);
    padding: var(--spacing-md) var(--spacing-xl);
    text-decoration: none;
    border-radius: 50px;
    font-weight: 700;
    font-size: 1.25rem;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
    transition: var(--transition);
    border: 3px solid transparent;
}

.forum-button:hover,
.forum-button:focus {
    background-color: var(--color-white);
    transform: translateY(-3px) scale(1.05);
    box-shadow: 0 6px 30px rgba(0, 0, 0, 0.3);
}

/* Downloads Section */
.downloads-section {
    background: var(--color-background-alt);
    padding: var(--spacing-lg) var(--spacing-md);
    border-radius: 8px;
}

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

.download-item {
    background-color: var(--color-white);
    padding: var(--spacing-md);
    border-radius: 8px;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    border-top: 3px solid var(--color-secondary);
}

.download-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.download-title {
    font-family: var(--font-display);
    font-size: 1.5rem;
    color: var(--color-primary);
    margin-bottom: var(--spacing-sm);
    font-weight: 600;
}

.download-description {
    color: var(--color-text-light);
    margin-bottom: var(--spacing-md);
    line-height: 1.6;
    font-size: 0.9375rem;
}

.download-link {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    color: var(--color-primary);
    text-decoration: none;
    font-weight: 600;
    padding: var(--spacing-sm) var(--spacing-md);
    background-color: var(--color-background-alt);
    border-radius: 6px;
    transition: var(--transition);
}

.download-link:hover,
.download-link:focus {
    background-color: var(--color-primary);
    color: var(--color-white);
    transform: translateX(4px);
}

.download-icon {
    font-size: 1.25rem;
}

/* Footer */
footer {
    background-color: var(--color-primary-dark);
    color: var(--color-white);
    padding: var(--spacing-lg) 0;
    margin-top: var(--spacing-xl);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-md);
}

.footer-nav {
    list-style: none;
    display: flex;
    gap: var(--spacing-md);
	background:var(--color-primary-dark);
}

.footer-nav a {
    color: rgba(255, 255, 255, 0.9);
    text-decoration: none;
    transition: var(--transition);
}

.footer-nav a:hover,
.footer-nav a:focus {
    color: var(--color-accent);
    text-decoration: underline;
}

/* Animations */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes rotate {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}

/* Gallery Section */
.gallery-section {
    background: var(--color-white);
    padding: var(--spacing-lg) var(--spacing-md);
    border-radius: 8px;
    box-shadow: var(--shadow-sm);
}

.gallery-intro {
    text-align: center;
    color: var(--color-text-light);
    margin-bottom: var(--spacing-lg);
    font-size: 1.125rem;
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-md);
    margin-top: var(--spacing-md);
}

.gallery-item {
    position: relative;
    overflow: hidden;
    border-radius: 8px;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    background-color: var(--color-background-alt);
    cursor: pointer;
}

.gallery-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.gallery-item:focus-within {
    outline: 3px solid var(--color-accent);
    outline-offset: 2px;
}

.gallery-image {
    width: 100%;
    height: auto;
    aspect-ratio: 4 / 3;
    object-fit: cover;
    display: block;
    transition: transform 0.4s ease;
}

.gallery-item:hover .gallery-image {
    transform: scale(1.05);
}

.gallery-caption {
    padding: var(--spacing-sm);
    text-align: center;
    font-weight: 600;
    color: var(--color-primary);
    background-color: var(--color-white);
    font-size: 0.9375rem;
}

/* Lightbox */
.lightbox {
    display: none;
    position: fixed;
    z-index: 9999;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.95);
    justify-content: center;
    align-items: center;
    animation: fadeIn 0.3s ease;
}

.lightbox-content {
    position: relative;
    max-width: 90%;
    max-height: 90%;
    margin: auto;
    animation: scaleIn 0.3s ease;
}

#lightbox-image {
    max-width: 100%;
    max-height: 85vh;
    display: block;
    margin: 0 auto;
    border-radius: 4px;
    box-shadow: 0 0 40px rgba(0, 0, 0, 0.5);
}

.lightbox-caption-text {
    text-align: center;
    color: var(--color-white);
    padding: var(--spacing-md);
    font-size: 1.125rem;
    font-weight: 600;
}

.lightbox-close {
    position: absolute;
    top: 20px;
    right: 30px;
    color: var(--color-white);
    font-size: 50px;
    font-weight: 300;
    background: none;
    border: none;
    cursor: pointer;
    z-index: 10000;
    transition: var(--transition);
    line-height: 1;
    padding: 0;
    width: 50px;
    height: 50px;
}

.lightbox-close:hover,
.lightbox-close:focus {
    color: var(--color-accent);
    transform: rotate(90deg);
}

.lightbox-prev,
.lightbox-next {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    color: var(--color-white);
    font-size: 40px;
    font-weight: bold;
    background-color: rgba(0, 0, 0, 0.5);
    border: none;
    cursor: pointer;
    padding: var(--spacing-md);
    border-radius: 4px;
    transition: var(--transition);
    user-select: none;
    z-index: 10000;
}

.lightbox-prev:hover,
.lightbox-next:hover,
.lightbox-prev:focus,
.lightbox-next:focus {
    background-color: rgba(0, 0, 0, 0.8);
    color: var(--color-accent);
}

.lightbox-prev {
    left: 20px;
}

.lightbox-next {
    right: 20px;
}

@keyframes scaleIn {
    from {
        transform: scale(0.8);
        opacity: 0;
    }
    to {
        transform: scale(1);
        opacity: 1;
    }
}

/* Responsive Design */
@media (max-width: 768px) {
    :root {
        --spacing-xl: 2.5rem;
        --spacing-lg: 2rem;
    }
    
    .nav-list {
        flex-direction: column;
        align-items: center;
    }
    
    .footer-content {
        flex-direction: column;
        text-align: center;
    }
    
    .footer-nav {
        flex-direction: column;
        align-items: center;
    }
    
    .download-grid {
        grid-template-columns: 1fr;
    }
    
    .gallery-grid {
        grid-template-columns: 1fr;
    }
    
    .lightbox-prev,
    .lightbox-next {
        font-size: 30px;
        padding: var(--spacing-sm);
    }
    
    .lightbox-prev {
        left: 10px;
    }
    
    .lightbox-next {
        right: 10px;
    }
    
    .lightbox-close {
        top: 10px;
        right: 10px;
        font-size: 40px;
    }
}

@media (max-width: 480px) {
    html {
        font-size: 14px;
    }
    
    .container {
        padding: 0 var(--spacing-sm);
    }
}

/* Print Styles */
@media print {
    header,
    nav,
    .forum-section,
    footer {
        display: none;
    }
    
    body {
        background-color: white;
        color: black;
    }
    
    .content-section,
    .hero {
        box-shadow: none;
        border: 1px solid #ccc;
    }
}

/* Focus Styles for Accessibility */
*:focus {
    outline: 3px solid var(--color-accent);
    outline-offset: 2px;
}

a:focus {
    outline-color: var(--color-primary);
}

/* High Contrast Mode Support */
@media (prefers-contrast: high) {
    :root {
        --color-text: #000000;
        --color-background: #ffffff;
    }
}

/* Reduced Motion Support */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    html {
        scroll-behavior: auto;
    }
}