@view-transition {
    navigation: auto;
}

:root {
    --transition-bg: #f8f6f0;
}

[data-theme="dark"] {
    --transition-bg: #1a1816;
}

html {
    background-color: #f8f6f0;
}

html[data-theme="dark"] {
    background-color: #1a1816;
}

html::view-transition-old(root) {
    background-color: #f8f6f0;
}

html::view-transition-new(root) {
    background-color: #f8f6f0;
}

html[data-theme="dark"]::view-transition-old(root) {
    background-color: #1a1816;
}

html[data-theme="dark"]::view-transition-new(root) {
    background-color: #1a1816;
}

::view-transition-old(root),
::view-transition-new(root) {
    animation-duration: 0.2s;
}

:root {
    --paper-bg: #f8f6f0;
    --text-color: #1a1816;
    --heading-color: #000000;
    --accent-color: #1a1816;
    --border-color: #2c2a28;
    --light-border: #d4d0c8;
    --content-width: 720px;
    --abstract-bg: rgba(255, 255, 255, 0.4);
    --notice-bg: rgba(255, 255, 255, 0.5);
}

[data-theme="dark"] {
    --paper-bg: #1a1816;
    --text-color: #e8e6e0;
    --heading-color: #f5f3ed;
    --accent-color: #d4d0c8;
    --border-color: #4a4845;
    --light-border: #3a3835;
    --abstract-bg: rgba(0, 0, 0, 0.3);
    --notice-bg: rgba(0, 0, 0, 0.4);
}

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

body {
    font-family: 'EB Garamond', 'Times New Roman', Times, serif;
    font-size: 16px;
    line-height: 1.6;
    /* background-color: var(--paper-bg); */
    color: var(--text-color);
    padding: 60px 40px;
    max-width: var(--content-width);
    margin: 0 auto;
    transition: background-color 0.3s ease, color 0.3s ease;
}

/* Dark mode toggle button */
.theme-toggle {
    position: fixed;
    top: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    border: 2px solid var(--border-color);
    background-color: var(--paper-bg);
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    transition: all 0.3s ease;
    z-index: 1000;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.theme-toggle:hover {
    transform: rotate(20deg) scale(1.05);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.theme-toggle:active {
    transform: rotate(20deg) scale(0.95);
    -webkit-tap-highlight-color: transparent;
}

.theme-icon {
    color: var(--text-color);
    transition: color 0.3s ease;
}

/* Title block - scientific paper style */
header {
    text-align: center;
    margin-bottom: 50px;
    padding-bottom: 40px;
    border-bottom: 2px solid var(--border-color);
    transition: border-color 0.3s ease;
}

.title {
    font-size: 32px;
    font-weight: 700;
    letter-spacing: 0.5px;
    margin-bottom: 20px;
    text-transform: uppercase;
}

.author {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 8px;
}

.affiliation {
    font-size: 15px;
    font-style: italic;
    color: var(--text-color);
    opacity: 0.7;
    margin-bottom: 6px;
    transition: color 0.3s ease;
}

.date {
    font-size: 14px;
    color: var(--text-color);
    opacity: 0.6;
    margin-top: 15px;
    transition: color 0.3s ease;
}

.typewriter-container {
    font-family: 'Courier New', Courier, monospace;
    font-size: 13px;
    color: var(--text-color);
    opacity: 0.7;
    margin-top: 20px;
    min-height: 1.4em;
    letter-spacing: 0.5px;
    transition: color 0.3s ease;
}

.cursor {
    display: inline-block;
    animation: blink 1s step-end infinite;
    transform: translateX(-0.5rem);
}

@keyframes blink {
    from, to { opacity: 1; }
    50% { opacity: 0; }
}

/* Section headings */
h2 {
    font-size: 20px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-top: 40px;
    margin-bottom: 16px;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 6px;
    transition: border-color 0.3s ease;
}

h3 {
    font-size: 17px;
    font-weight: 600;
    margin-top: 24px;
    margin-bottom: 8px;
    font-style: italic;
}

/* Paragraphs */
p {
    text-align: justify;
    margin-bottom: 12px;
    line-height: 1.65;
    /* hyphens: auto; */
}

/* Abstract/Introduction box */
.abstract {
    border: 1px solid var(--border-color);
    padding: 20px 24px;
    margin: 30px 0;
    background-color: var(--abstract-bg);
    transition: all 0.3s ease;
}

.abstract-title {
    font-size: 14px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 12px;
}

.abstract p {
    font-size: 15px;
    line-height: 1.6;
}

/* Project entries like bibliography */
.project-list {
    margin: 20px 0;
}

.project-item {
    margin-bottom: 20px;
    padding-left: 20px;
    position: relative;
}

.project-item::before {
    content: "•";
    position: absolute;
    left: 0;
    font-weight: 700;
}

.project-title {
    font-weight: 600;
    font-style: italic;
}

.project-status {
    font-size: 14px;
    color: var(--text-color);
    opacity: 0.6;
    font-style: italic;
    transition: color 0.3s ease;
}

.project-description {
    margin-top: 4px;
    font-size: 15px;
    text-align: justify;
    /* hyphens: auto; */
}

/* Links - minimal underline style */
a {
    color: var(--accent-color);
    text-decoration: none;
    border-bottom: 1px solid var(--light-border);
    transition: all 0.3s ease;
}

a:hover {
    border-bottom: 1px solid var(--border-color);
}

/* Contact list */
.contact-list {
    list-style: none;
    margin: 16px 0;
    padding-left: 20px;
}

.contact-list li {
    margin-bottom: 8px;
    position: relative;
}

.contact-list li::before {
    content: "—";
    position: absolute;
    left: -20px;
}

/* Notice box */
.notice-box {
    border: 2px solid var(--border-color);
    padding: 20px;
    margin: 30px 0;
    background-color: var(--notice-bg);
    text-align: center;
    transition: all 0.3s ease;
}

.notice-box p {
    text-align: justify;
    margin-bottom: 8px;
    hyphens: auto;
}

/* Footer */
footer {
    margin-top: 60px;
    padding-top: 20px;
    border-top: 1px solid var(--border-color);
    text-align: center;
    font-size: 13px;
    color: var(--text-color);
    opacity: 0.6;
    transition: all 0.3s ease;
}

/* Section dividers */
hr {
    border: none;
    border-top: 1px solid var(--light-border);
    margin: 40px 0;
    transition: border-color 0.3s ease;
}

/* Responsive */
@media (max-width: 768px) {
    body {
        padding: 30px 20px;
        font-size: 15px;
    }
    
    .title {
        font-size: 26px;
    }
    
    h2 {
        font-size: 18px;
    }
    
    .project-item {
        padding-left: 16px;
    }

    .theme-toggle {
        top: 20px;
        right: 20px;
        width: 45px;
        height: 45px;
        font-size: 18px;
    }
}

/* Print styles */
@media print {
    body {
        background-color: white;
        max-width: 100%;
        font-size: 12pt;
    }
    
    .typewriter-container, .cursor, .theme-toggle {
        display: none;
    }
    
    a {
        color: black;
        border-bottom: none;
        text-decoration: underline;
    }
}