/* Global Styles */
:root {
    --teal-primary: #009688;
    --teal-light: #4DB6AC;
    --teal-dark: #1E3D3E;
    --teal-pale: #E0F2F1;
    --black: #000000;
    --white: #FFFFFF;
    --gray-light: #F5F5F5;
    --gray-medium: #CCCCCC;
    --gray-dark: #666666;
}

/* Dark Theme (Default) */
:root {
    --bg-primary: #1e1e1e;
    --bg-secondary: #2d2d2d;
    --text-primary: #FFFFFF;
    --text-secondary: #CCCCCC;
    --border-color: #e0e0e0;
    --card-bg: #2a2a2a;
    --card-hover: #333333;
}

/* Light Theme */
body.light-theme {
    --bg-primary: #FFFFFF;
    --bg-secondary: #F5F5F5;
    --text-primary: #1e1e1e;
    --text-secondary: #666666;
    --border-color: #2d2d2d;
    --card-bg: #F5F5F5;
    --card-hover: #FFFFFF;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Lato', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    padding: 0;
    transition: background-color 0.3s ease, color 0.3s ease;
}

/* Heading Font */
h1, h2, h3, h4, h5, h6 {
    font-family: 'Playfair Display', serif;
    color: var(--text-primary);
    transition: color 0.3s ease;
}

/* Theme Toggle Button */
.theme-toggle {
    position: fixed;
    top: 20px;
    right: 20px;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    border: 2px solid var(--border-color);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    z-index: 1000;
    transition: all 0.3s ease;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}

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

.theme-toggle:focus {
    outline: 2px solid var(--teal-primary);
    outline-offset: 2px;
}

@media (max-width: 576px) {
    .theme-toggle {
        width: 45px;
        height: 45px;
        top: 15px;
        right: 15px;
        font-size: 1rem;
    }
}

/* Profile Name */
.profile-name {
    font-family: 'Sedgwick Ave', cursive;
    font-size: 3rem;
    font-weight: 400;
    color: var(--text-primary);
    margin: 0;
    padding: 1.5rem 0 0rem;
    letter-spacing: 4px;
    position: relative;
    display: inline-block;
    transition: color 0.3s ease;
}

@media (max-width: 768px) {
    .profile-name {
        font-size: 2.5rem;
        padding: 1.5rem 0;
        letter-spacing: 3px;
    }
}

@media (max-width: 576px) {
    .profile-name {
        font-size: 2rem;
        padding: 1rem 0;
        letter-spacing: 2px;
    }
}

/* Introduction Section */
.introduction-section {
    padding: 1.5rem 0;
    margin-bottom: 1rem;
}

.introduction-text {
    font-family: 'Lato', sans-serif;
    font-size: 1.1rem;
    font-weight: 300;
    color: var(--text-secondary);
    line-height: 1.8;
    margin: 0;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
    transition: color 0.3s ease;
}

@media (max-width: 768px) {
    .introduction-section {
        padding: 1rem 0;
    }
    
    .introduction-text {
        font-size: 1rem;
        padding: 0 1rem;
    }
}

@media (max-width: 576px) {
    .introduction-text {
        font-size: 0.95rem;
    }
}

/* Contact Section */
.contact-section {
    padding: 2rem 0;
    border-bottom: 2px solid var(--border-color);
    transition: border-color 0.3s ease;
}

/* Social Links */
.social-links {
    display: flex;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.social-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 45px;
    height: 45px;
    border: 2px solid var(--border-color);
    border-radius: 50%;
    color: var(--text-primary);
    text-decoration: none;
    transition: all 0.3s ease;
    font-size: 1.2rem;
    background-color: transparent;
}

.social-link:hover {
    background-color: var(--teal-primary);
    border-color: var(--teal-primary);
    color: var(--white);
    transform: translateY(-2px);
}

.social-link:focus {
    outline: 2px solid var(--teal-primary);
    outline-offset: 2px;
}

/* Contact Info */
.contact-info {
    margin-top: 0;
}

.contact-info p {
    font-size: 1.2rem;
    color: var(--text-primary);
    transition: color 0.3s ease;
}

.contact-link {
    color: var(--text-primary);
    text-decoration: none;
    border-bottom: 1px solid transparent;
    transition: all 0.3s ease;
    font-size: 1rem;
    font-weight: 300;
}

.contact-link:hover {
    color: var(--teal-primary);
    border-bottom-color: var(--teal-primary);
}

.contact-info i {
    color: var(--teal-primary);
}

/* Publications Section */
.publications-section {
    margin-top: 1rem;
    padding-top: 1rem;
}

.section-title {
    font-family: 'Playfair Display', serif;
    font-size: 2rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: var(--text-primary);
    text-align: center;
    position: relative;
    padding-bottom: 1rem;
    transition: color 0.3s ease;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background-color: var(--teal-primary);
}

/* Publications List */
.publications-list {
    margin-top: 2rem;
}

.publication-item {
    padding: 0;
    border-left: 3px solid var(--teal-primary);
    background-color: var(--card-bg);
    transition: all 0.3s ease;
    position: relative;
}

.publication-item-link {
    display: block;
    padding: 1.5rem;
    text-decoration: none;
    color: inherit;
    cursor: pointer;
}

.publication-item:hover {
    background-color: var(--card-hover);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
    transform: translateX(5px);
}

.publication-title {
    font-family: 'Playfair Display', serif;
    font-size: 1.3rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
    transition: color 0.3s ease;
}

.publication-item-link:hover .publication-title {
    color: var(--teal-primary);
}

.publication-item:hover .publication-title {
    color: var(--teal-primary);
}

.publication-source {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
    font-style: italic;
    transition: color 0.3s ease;
}

.publication-date {
    color: var(--teal-primary);
    font-weight: 600;
}

.publication-description {
    font-size: 0.95rem;
    color: var(--text-primary);
    line-height: 1.6;
    margin-top: 0.5rem;
    transition: color 0.3s ease;
}

/* Responsive Design */
@media (max-width: 768px) {
    .section-title {
        font-size: 1.5rem;
    }
    
    .publication-title {
        font-size: 1rem;
    }
    
    .publication-item {
        padding: 1rem;
    }
    
    .publication-description {
        font-size: 0.85rem;
    }
    
    .publication-source {
        font-size: 0.8rem;
    }
    
    .contact-section {
        padding: 1.5rem 0;
    }
}

@media (max-width: 576px) {
    .container {
        padding-left: 1rem;
        padding-right: 1rem;
    }
    
    .social-link {
        width: 40px;
        height: 40px;
        font-size: 1rem;
    }
    
    .contact-info p {
        font-size: 0.9rem;
    }
    
    .section-title {
        font-size: 1.3rem;
        letter-spacing: 1px;
    }
    
    .publication-item {
        padding: 0;
        border-left-width: 2px;
    }
    
    .publication-item-link {
        padding: 0.75rem;
    }
    
    .publication-title {
        font-size: 0.9rem;
        margin-bottom: 0.4rem;
    }
    
    .publication-description {
        font-size: 0.8rem;
        line-height: 1.5;
        margin-top: 0.4rem;
    }
    
    .publication-source {
        font-size: 0.75rem;
        margin-bottom: 0.4rem;
    }
}

/* Pagination Styles */
.pagination {
    margin-top: 3rem;
    gap: 0.5rem;
    display: flex;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
    list-style: none;
    padding: 0;
}

.page-item {
    margin: 0;
}

.page-link {
    color: var(--text-primary);
    background-color: transparent;
    border: none;
    padding: 0.5rem 0.9rem;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    border-radius: 6px;
    font-weight: 500;
    font-size: 0.85rem;
    min-width: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    text-decoration: none;
}

.page-link::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: var(--teal-primary);
    border-radius: 6px;
    opacity: 0;
    transition: opacity 0.3s ease;
    z-index: -1;
}

.page-link:hover {
    color: var(--white);
    background-color: transparent;
    transform: translateY(-2px);
}

.page-link:hover::before {
    opacity: 1;
}

.page-item.active .page-link {
    color: var(--white);
    background-color: var(--teal-primary);
    box-shadow: 0 4px 12px rgba(0, 150, 136, 0.4);
}

.page-item.active .page-link::before {
    opacity: 1;
}

.page-item.active .page-link:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(0, 150, 136, 0.5);
}

.page-item.disabled .page-link {
    opacity: 0.3;
    cursor: not-allowed;
    pointer-events: none;
}

.page-item.disabled .page-link:hover {
    transform: none;
    color: var(--text-primary);
}

.page-item.disabled .page-link::before {
    display: none;
}

/* Previous/Next buttons styling */
.page-item:first-child .page-link,
.page-item:last-child .page-link {
    font-size: 0.95rem;
    padding: 0.5rem 0.75rem;
}

@media (max-width: 576px) {
    .pagination {
        gap: 0.25rem;
    }
    
    .page-link {
        padding: 0.4rem 0.7rem;
        font-size: 0.75rem;
        min-width: 32px;
    }
    
    .page-item:first-child .page-link,
    .page-item:last-child .page-link {
        padding: 0.4rem 0.6rem;
        font-size: 0.85rem;
    }
}

/* Print Styles */
@media print {
    .social-links {
        display: none;
    }
    
    .publication-item {
        page-break-inside: avoid;
        border-left: 2px solid var(--border-color);
    }
    
    .pagination {
        display: none;
    }
    
    .publication-item {
        display: block !important;
    }
}