/* ============================================
   Retro Academic / Vintage Paper Design
   Color Scheme: Sepia + Dark Brown + Burgundy
   Style: Classic academia, newspaper aesthetic
   ============================================ */

:root {
    --color-paper: #f8f4e8;
    --color-paper-dark: #ede6d6;
    --color-ink: #2c2416;
    --color-ink-light: #5c4a36;
    --color-accent: #8b2332;
    --color-accent-light: #a63446;
    --color-gold: #c4a35a;
    --font-display: 'IM Fell English SC', serif;
    --font-serif: 'Libre Baskerville', Georgia, serif;
    --font-typewriter: 'Special Elite', 'Courier New', monospace;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-serif);
    background: #e8e0cc;
    color: var(--color-ink);
    line-height: 1.7;
    font-size: 17px;
}

/* Page Border Decoration */
.page-border {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    pointer-events: none;
    z-index: 100;
}

.corner {
    position: absolute;
    width: 40px;
    height: 40px;
    border: 2px solid var(--color-gold);
}

.corner-tl { top: 20px; left: 20px; border-right: none; border-bottom: none; }
.corner-tr { top: 20px; right: 20px; border-left: none; border-bottom: none; }
.corner-bl { bottom: 20px; left: 20px; border-right: none; border-top: none; }
.corner-br { bottom: 20px; right: 20px; border-left: none; border-top: none; }

/* Paper Container */
.paper {
    max-width: 800px;
    margin: 3rem auto;
    padding: 4rem 5rem;
    background: var(--color-paper);
    box-shadow: 
        0 0 0 1px rgba(44, 36, 22, 0.1),
        0 20px 60px rgba(44, 36, 22, 0.15),
        inset 0 0 100px rgba(139, 35, 50, 0.02);
    position: relative;
}

.paper::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        repeating-linear-gradient(
            0deg,
            transparent,
            transparent 28px,
            rgba(139, 35, 50, 0.03) 28px,
            rgba(139, 35, 50, 0.03) 29px
        );
    pointer-events: none;
}

/* Masthead */
.masthead {
    text-align: center;
    padding-bottom: 2rem;
    margin-bottom: 1.5rem;
    border-bottom: 1px solid var(--color-ink);
}

.masthead-ornament {
    font-size: 0.9rem;
    letter-spacing: 0.3em;
    color: var(--color-gold);
    margin-bottom: 0.5rem;
}

.masthead-title {
    font-family: var(--font-display);
    font-size: 2.75rem;
    font-weight: 400;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    margin-bottom: 0.5rem;
    color: var(--color-ink);
}

.masthead-subtitle {
    font-style: italic;
    color: var(--color-ink-light);
    font-size: 1.1rem;
}

/* Navigation */
.nav-bar {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 1rem;
    padding: 1rem 0;
    flex-wrap: wrap;
}

.nav-bar a {
    color: var(--color-ink);
    text-decoration: none;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    transition: color 0.3s ease;
}

.nav-bar a:hover {
    color: var(--color-accent);
}

.nav-dot {
    color: var(--color-gold);
    font-size: 0.6rem;
}

/* Dividers */
.divider {
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--color-ink-light), transparent);
    margin: 2rem 0;
}

.divider-ornate {
    position: relative;
    height: auto;
    background: none;
    text-align: center;
    margin: 3rem 0;
}

.divider-ornate::before {
    content: '✦ ✦ ✦';
    display: block;
    color: var(--color-gold);
    letter-spacing: 1em;
    font-size: 0.7rem;
}

.divider-ornate::after {
    content: '';
    position: absolute;
    left: 0;
    right: 0;
    top: 50%;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--color-ink-light) 20%, transparent 40%, transparent 60%, var(--color-ink-light) 80%, transparent);
    z-index: -1;
}

/* Sections */
.section {
    margin: 3rem 0;
    position: relative;
}

.section-header {
    display: flex;
    align-items: baseline;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.section-number {
    font-family: var(--font-display);
    font-size: 1.25rem;
    color: var(--color-accent);
}

.section-header h2 {
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 400;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--color-ink);
}

.section-intro {
    font-style: italic;
    color: var(--color-ink-light);
    margin-bottom: 1.5rem;
}

/* About Section */
.about-layout {
    display: grid;
    grid-template-columns: 200px 1fr;
    gap: 2rem;
    align-items: start;
}

.portrait-frame {
    text-align: center;
}

.portrait-placeholder {
    width: 180px;
    height: 220px;
    background: var(--color-paper-dark);
    border: 1px solid var(--color-ink-light);
    display: flex;
    align-items: center;
    justify-content: center;
    font-style: italic;
    color: var(--color-ink-light);
    margin: 0 auto;
}

.portrait-caption {
    font-size: 0.8rem;
    font-style: italic;
    color: var(--color-ink-light);
    margin-top: 0.75rem;
}

.about-text p {
    margin-bottom: 1rem;
    text-align: justify;
    hyphens: auto;
}

.drop-cap::first-letter {
    float: left;
    font-family: var(--font-display);
    font-size: 4rem;
    line-height: 0.8;
    padding-right: 0.5rem;
    padding-top: 0.1rem;
    color: var(--color-accent);
}

/* Research Section */
.research-columns {
    column-count: 2;
    column-gap: 2.5rem;
}

.research-item {
    break-inside: avoid;
    margin-bottom: 1.5rem;
}

.research-item h3 {
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    color: var(--color-ink);
}

.research-item p {
    font-size: 0.95rem;
    color: var(--color-ink-light);
    text-align: justify;
}

/* Publications Section */
.publications-list {
    list-style: none;
    counter-reset: publication;
}

.publication {
    display: flex;
    gap: 1rem;
    margin-bottom: 1.5rem;
    padding-bottom: 1.5rem;
    border-bottom: 1px dashed var(--color-paper-dark);
}

.publication:last-child {
    border-bottom: none;
}

.pub-marker {
    font-family: var(--font-typewriter);
    font-size: 0.85rem;
    color: var(--color-accent);
    min-width: 24px;
}

.pub-content cite {
    display: block;
    font-style: italic;
    font-size: 1.05rem;
    margin-bottom: 0.25rem;
    color: var(--color-ink);
}

.pub-authors {
    font-size: 0.9rem;
    color: var(--color-ink-light);
    margin-bottom: 0.15rem;
}

.pub-journal {
    font-size: 0.85rem;
    color: var(--color-ink-light);
}

.pub-journal strong {
    color: var(--color-ink);
}

.view-more {
    text-align: center;
    margin-top: 1.5rem;
    font-size: 0.9rem;
}

.view-more a {
    color: var(--color-accent);
    text-decoration: none;
}

.view-more a:hover {
    text-decoration: underline;
}

/* Teaching Section */
.teaching-table {
    border: 1px solid var(--color-ink-light);
}

.teaching-row {
    display: grid;
    grid-template-columns: 140px 1fr;
    border-bottom: 1px solid var(--color-paper-dark);
}

.teaching-row:last-child {
    border-bottom: none;
}

.teaching-term {
    padding: 1.25rem 1rem;
    background: var(--color-paper-dark);
    font-family: var(--font-typewriter);
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border-right: 1px solid var(--color-ink-light);
}

.teaching-course {
    padding: 1.25rem 1.5rem;
}

.teaching-course strong {
    display: block;
    margin-bottom: 0.25rem;
    color: var(--color-ink);
}

.teaching-course p {
    font-size: 0.9rem;
    color: var(--color-ink-light);
}

/* Contact Section */
.contact-layout {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.contact-card h3 {
    font-family: var(--font-display);
    font-size: 1rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid var(--color-gold);
    color: var(--color-ink);
}

.contact-card address {
    font-style: normal;
    font-size: 0.95rem;
    line-height: 1.8;
    color: var(--color-ink-light);
}

.contact-card p {
    font-size: 0.95rem;
    color: var(--color-ink-light);
    margin-bottom: 0.5rem;
}

.contact-card a {
    color: var(--color-accent);
    text-decoration: none;
}

.contact-card a:hover {
    text-decoration: underline;
}

.profile-links {
    list-style: none;
}

.profile-links li {
    margin-bottom: 0.5rem;
}

.profile-links a {
    font-size: 0.95rem;
    color: var(--color-ink);
    text-decoration: none;
    transition: color 0.3s ease;
}

.profile-links a:hover {
    color: var(--color-accent);
}

/* Footer */
.footer {
    text-align: center;
    padding-top: 2rem;
    margin-top: 3rem;
    border-top: 1px solid var(--color-ink);
}

.footer-ornament {
    color: var(--color-gold);
    letter-spacing: 0.5em;
    margin-bottom: 1rem;
}

.footer p {
    font-size: 0.85rem;
    color: var(--color-ink-light);
    margin-bottom: 0.25rem;
}

.footer-note {
    font-style: italic;
    font-size: 0.8rem;
}

/* Responsive */
@media (max-width: 900px) {
    .paper {
        margin: 1.5rem;
        padding: 2.5rem 2rem;
    }

    .corner {
        display: none;
    }

    .masthead-title {
        font-size: 2rem;
    }

    .about-layout {
        grid-template-columns: 1fr;
    }

    .portrait-frame {
        margin-bottom: 1rem;
    }

    .research-columns {
        column-count: 1;
    }

    .contact-layout {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
}

@media (max-width: 600px) {
    body {
        font-size: 16px;
    }

    .paper {
        margin: 0.5rem;
        padding: 2rem 1.25rem;
    }

    .masthead-title {
        font-size: 1.5rem;
        letter-spacing: 0.05em;
    }

    .nav-bar {
        gap: 0.5rem;
    }

    .nav-bar a {
        font-size: 0.75rem;
        letter-spacing: 0.1em;
    }

    .nav-dot {
        display: none;
    }

    .section-header {
        flex-direction: column;
        gap: 0.25rem;
    }

    .section-header h2 {
        font-size: 1.25rem;
    }

    .teaching-row {
        grid-template-columns: 1fr;
    }

    .teaching-term {
        border-right: none;
        border-bottom: 1px solid var(--color-paper-dark);
    }

    .drop-cap::first-letter {
        font-size: 3rem;
    }
}