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

html {
    scroll-behavior: smooth;
}

body {
    font-family: Georgia, 'Times New Roman', serif;
    font-size: 18px;
    line-height: 1.7;
    color: #2b2b2b;
    background-color: #fffef8;
    max-width: 680px;
    margin: 0 auto;
    padding: 40px 30px;
}

/* Typography */
h1 {
    font-size: 3rem;
    font-weight: 400;
    letter-spacing: -0.5px;
    margin-bottom: 2.5rem;
    margin-top: 1rem;
    color: #1a1a1a;
    font-family: Georgia, serif;
}

h2 {
    font-size: 1.8rem;
    font-weight: 400;
    margin: 3rem 0 1.5rem 0;
    color: #1a1a1a;
}

h3 {
    font-size: 1.3rem;
    font-weight: 600;
    margin: 2.5rem 0 1.2rem 0;
    color: #1a1a1a;
}

p {
    margin-bottom: 1.5rem;
}

/* Links */
a {
    color: #0066cc;
    text-decoration: none;
    border-bottom: 1px solid transparent;
    transition: border-color 0.2s ease;
}

a:hover {
    border-bottom-color: #0066cc;
}

/* Emphasis - this creates the italic keyword effect */
em {
    font-style: italic;
    font-weight: 400;
}

/* Navigation */
nav {
    margin-bottom: 2.5rem;
    padding-bottom: 1.5rem;
    border-bottom: 1px solid #e0e0e0;
    font-size: 0.95rem;
}

nav a {
    margin-right: 1.5rem;
    color: #666;
}

nav a:hover {
    color: #0066cc;
}

/* Intro paragraph */
.intro {
    font-size: 1.15rem;
    line-height: 1.8;
}

/* Note style */
.note {
    font-size: 0.95rem;
    color: #666;
    font-style: italic;
    margin-bottom: 2rem;
}

/* Images */
.section-image {
    margin: 3rem 0;
    max-width: 100%;
}

.section-image img {
    width: 100%;
    height: auto;
    display: block;
}

/* Lists */
.papers-list {
    list-style: none;
    padding-left: 0;
}

.papers-list li {
    margin-bottom: 1.3rem;
    line-height: 1.75;
    position: relative;
    padding-left: 1.5em;
}

.papers-list li:before {
    content: "·";
    position: absolute;
    left: 0;
    font-weight: bold;
    color: #666;
}

/* Sections */
section {
    margin-bottom: 3rem;
}

/* Footer */
footer {
    margin-top: 5rem;
    padding-top: 2rem;
    border-top: 1px solid #e0e0e0;
    text-align: center;
    font-size: 0.9rem;
    color: #666;
}

/* Responsive Design */
@media (max-width: 768px) {
    body {
        font-size: 17px;
        padding: 30px 20px;
    }
    
    h1 {
        font-size: 2.2rem;
    }
    
    h2 {
        font-size: 1.5rem;
    }
    
    h3 {
        font-size: 1.2rem;
    }
}

@media (max-width: 480px) {
    body {
        font-size: 16px;
        padding: 20px 15px;
    }
    
    h1 {
        font-size: 1.8rem;
    }
}