/* Academic Website - Lab Notebook Theme */
/* Hand-drawn pencil sketch aesthetic */

:root {
    /* University of Würzburg Blue Palette */
    --primary-color: #00356b;         /* Uni Würzburg dark blue */
    --secondary-color: #1e4d7b;       /* Mid blue */
    --accent-color: #00356b;          /* Same blue for accents */
    --accent-light: #2a5a8a;          /* Lighter blue */
    --text-color: #2d2d2d;            /* Pencil dark */
    --text-light: #5a5a5a;            /* Pencil light */
    --background: #fdfcf9;            /* Cream paper */
    --background-alt: #f8f6f1;        /* Aged paper */
    --border-color: #d4cfc4;          /* Pencil line */
    --pencil-gray: #6b6b6b;           /* Graphite */
    --card-gradient-start: #fffef8;
    --card-gradient-end: #faf8f0;
    --rule-line-color: rgba(180, 200, 220, 0.25);

    /* Typography */
    --font-heading: 'Cormorant Garamond', Georgia, serif;
    --font-main: 'Crimson Pro', Georgia, serif;
    --font-accent: 'Caveat', cursive;

    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 2rem;
    --spacing-xl: 4rem;

    /* Layout */
    --max-width: 1000px;
    --sidebar-width: 260px;
}

/* Dark mode */
[data-theme="dark"] {
    --primary-color: #6ab0ff;         /* Lighter blue for dark mode */
    --secondary-color: #8eccff;
    --accent-color: #6ab0ff;
    --accent-light: #a0d8ff;
    --text-color: #efefef;            /* Light text */
    --text-light: #c8c8c8;            /* Muted light text - much brighter */
    --background: #1a1a1a;            /* Dark paper */
    --background-alt: #242424;        /* Slightly lighter */
    --border-color: #505050;          /* Dark border - more visible */
    --pencil-gray: #aaaaaa;           /* Lighter graphite */
    --card-gradient-start: #262626;
    --card-gradient-end: #202020;
    --rule-line-color: rgba(100, 110, 120, 0.35);
}

/* Respect system preference */
@media (prefers-color-scheme: dark) {
    :root:not([data-theme="light"]) {
        --primary-color: #6ab0ff;
        --secondary-color: #8eccff;
        --accent-color: #6ab0ff;
        --accent-light: #a0d8ff;
        --text-color: #efefef;
        --text-light: #c8c8c8;
        --background: #1a1a1a;
        --background-alt: #242424;
        --border-color: #505050;
        --pencil-gray: #aaaaaa;
        --card-gradient-start: #262626;
        --card-gradient-end: #202020;
        --rule-line-color: rgba(100, 110, 120, 0.35);
    }
}

/* Skip to content link for accessibility */
.skip-link {
    position: absolute;
    top: -40px;
    left: 0;
    background: var(--primary-color);
    color: var(--background);
    padding: var(--spacing-sm) var(--spacing-md);
    z-index: 200;
    border-bottom: none;
}

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

/* Reset & Base */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    font-size: 17px;
}

body {
    font-family: var(--font-main);
    color: var(--text-color);
    background-color: var(--background);
    line-height: 1.75;
    min-height: 100vh;
    /* Ruled notebook paper effect */
    background-image:
        /* Horizontal ruled lines */
        repeating-linear-gradient(
            to bottom,
            transparent,
            transparent 27px,
            var(--rule-line-color) 27px,
            var(--rule-line-color) 28px
        ),
        /* Paper texture */
        url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)' opacity='0.04'/%3E%3C/svg%3E");
}

/* Typography */
h1, h2, h3, h4 {
    font-family: var(--font-heading);
    color: var(--primary-color);
    line-height: 1.25;
    margin-bottom: var(--spacing-md);
    font-weight: 500;
}

h1 { font-size: 2.8rem; font-weight: 400; }
h2 { font-size: 1.9rem; font-weight: 500; }
h3 { font-size: 1.4rem; font-weight: 600; }
h4 { font-size: 1.15rem; font-weight: 600; }

p {
    margin-bottom: var(--spacing-md);
}

a {
    color: var(--primary-color);
    text-decoration: none;
    border-bottom: 1px solid var(--border-color);
}

a:hover {
    border-bottom-color: var(--primary-color);
}

/* Layout */
.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

/* Header */
.site-header {
    background: var(--primary-color);
    padding: var(--spacing-md) 0;
    position: sticky;
    top: 0;
    z-index: 100;
}

.site-header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.header-right {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.site-title {
    color: var(--background);
    font-family: var(--font-accent);
    font-size: 1.8rem;
    border-bottom: none;
}

.site-title:hover {
    border-bottom: none;
}

.main-nav {
    display: flex;
    gap: var(--spacing-lg);
}

.main-nav a {
    color: rgba(253, 252, 249, 0.95);
    font-family: var(--font-main);
    font-weight: 500;
    font-size: 0.95rem;
    padding: var(--spacing-sm) 0;
    letter-spacing: 0.02em;
    text-transform: uppercase;
    border-bottom: none;
}

.main-nav a:hover,
.main-nav a.active {
    color: var(--background);
}

.main-nav a:focus-visible {
    color: var(--background);
    outline: 2px solid var(--background);
    outline-offset: 2px;
}

/* Mobile Navigation */
.nav-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--background);
    font-size: 1.5rem;
    cursor: pointer;
}

/* Theme Toggle */
.theme-toggle {
    background: none;
    border: none;
    color: var(--background);
    cursor: pointer;
    padding: var(--spacing-xs);
    opacity: 0.9;
    transition: opacity 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
}

.theme-toggle:hover {
    opacity: 1;
}

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

.theme-toggle svg {
    width: 18px;
    height: 18px;
}

/* Hide moon in dark mode, sun in light mode */
.theme-toggle .icon-sun { display: none; }
.theme-toggle .icon-moon { display: flex; }

[data-theme="dark"] .theme-toggle .icon-sun { display: flex; }
[data-theme="dark"] .theme-toggle .icon-moon { display: none; }

@media (prefers-color-scheme: dark) {
    :root:not([data-theme="light"]) .theme-toggle .icon-sun { display: flex; }
    :root:not([data-theme="light"]) .theme-toggle .icon-moon { display: none; }
}

@media (max-width: 768px) {
    .nav-toggle { display: block; }
    .main-nav {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--primary-color);
        flex-direction: column;
        padding: var(--spacing-md);
        gap: var(--spacing-sm);
    }
    .main-nav.active { display: flex; }
}

/* Hero Section */
.hero {
    padding: var(--spacing-lg) 0 var(--spacing-md) 0;
    background: transparent;
}

.hero-content {
    display: grid;
    grid-template-columns: var(--sidebar-width) 1fr;
    gap: var(--spacing-xl);
    align-items: start;
}

.profile-section {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    align-self: start;
    height: fit-content;
}

/* Hero stats below photo - paper snippet style */
.hero-stats {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
    margin-top: var(--spacing-lg);
    margin-bottom: var(--spacing-sm);
    background: linear-gradient(135deg, var(--card-gradient-start) 0%, var(--card-gradient-end) 100%);
    padding: var(--spacing-md) var(--spacing-lg);
    position: relative;
    transform: rotate(-0.6deg);
    border: 2px solid var(--pencil-gray);
    border-radius: 2px 8px 4px 6px;
    box-shadow:
        3px 3px 0 var(--border-color),
        4px 4px 8px rgba(0,0,0,0.08);
    width: 100%;
    box-sizing: border-box;
}

.hero-stats .stat-item {
    display: flex;
    align-items: baseline;
    gap: var(--spacing-sm);
}

.hero-stats .stat-number {
    font-size: 1.8rem;
    min-width: 70px;
}

.hero-stats .stat-label {
    font-size: 0.85rem;
}

.hero-stats-source {
    font-size: 0.8rem;
    margin-bottom: 0;
}

@media (max-width: 768px) {
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .profile-section {
        display: flex;
        flex-direction: column;
        align-items: center;
    }
}

.profile-image {
    width: 100%;
    /* Pencil sketch frame effect */
    border: 2px solid var(--pencil-gray);
    box-shadow: 3px 3px 0 var(--border-color);
    border-radius: 3px 6px 4px 7px;
    transform: rotate(0.5deg);
    filter: contrast(1.02);
}

.hero-subtitle {
    color: var(--text-light);
    font-size: 1.15rem;
    font-style: italic;
    margin-bottom: var(--spacing-lg);
    padding-left: var(--spacing-md);
    position: relative;
}

.hero-subtitle::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    width: 2px;
    height: 100%;
    background: var(--pencil-gray);
    mask-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 4 100' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M2 0 Q0 10, 2 20 T2 40 T2 60 T2 80 T2 100' stroke='black' fill='none' stroke-width='3'/%3E%3C/svg%3E");
    -webkit-mask-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 4 100' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M2 0 Q0 10, 2 20 T2 40 T2 60 T2 80 T2 100' stroke='black' fill='none' stroke-width='3'/%3E%3C/svg%3E");
}

.hero-description {
    font-size: 1.05rem;
    max-width: 580px;
    background: linear-gradient(145deg, var(--card-gradient-start) 0%, var(--card-gradient-end) 100%);
    padding: var(--spacing-lg);
    position: relative;
    transform: rotate(0.4deg);
    border: 2px solid var(--pencil-gray);
    border-radius: 4px 2px 6px 3px;
    box-shadow:
        3px 3px 0 var(--border-color),
        4px 4px 8px rgba(0,0,0,0.08);
    margin-bottom: var(--spacing-md);
}

/* Contact Links */
.contact-links {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-sm);
    margin-top: var(--spacing-md);
    width: 100%;
    box-sizing: border-box;
}

@media (max-width: 768px) {
    .contact-links { grid-template-columns: repeat(2, 1fr); }
}

.contact-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm) var(--spacing-md);
    background: linear-gradient(135deg, var(--card-gradient-start) 0%, var(--card-gradient-end) 100%);
    border: 2px solid var(--pencil-gray);
    border-radius: 3px 5px 4px 6px;
    color: var(--text-color);
    font-family: var(--font-accent);
    font-size: 1rem;
    box-shadow:
        2px 2px 0 var(--border-color),
        3px 3px 6px rgba(0,0,0,0.06);
}

.contact-link:nth-child(1) { transform: rotate(-0.8deg); }
.contact-link:nth-child(2) { transform: rotate(0.6deg); }
.contact-link:nth-child(3) { transform: rotate(0.4deg); }
.contact-link:nth-child(4) { transform: rotate(-0.5deg); }

.contact-link svg {
    width: 16px;
    height: 16px;
    opacity: 0.7;
}

/* Section Styling */
.section {
    padding: var(--spacing-xl) 0;
}

.hero + .section {
    padding-top: var(--spacing-lg);
}

.section:nth-child(even) {
    background-color: var(--background-alt);
    background-image: repeating-linear-gradient(
        to bottom,
        transparent,
        transparent 27px,
        var(--rule-line-color) 27px,
        var(--rule-line-color) 28px
    );
}

/* Pencil underline for section titles */
.section-title {
    margin-bottom: var(--spacing-lg);
    position: relative;
    display: inline-block;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -6px;
    left: 0;
    width: 100%;
    height: 2px;
    background: var(--pencil-gray);
    /* Rough pencil line effect */
    mask-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 100 4' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M0 2 Q10 0, 20 2 T40 2 T60 2 T80 2 T100 2' stroke='black' fill='none' stroke-width='3'/%3E%3C/svg%3E");
    -webkit-mask-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 100 4' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M0 2 Q10 0, 20 2 T40 2 T60 2 T80 2 T100 2' stroke='black' fill='none' stroke-width='3'/%3E%3C/svg%3E");
}

/* Research Cards - Paper snippet style */
.research-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
}

@media (max-width: 900px) {
    .research-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 600px) {
    .research-grid {
        grid-template-columns: 1fr;
    }
}

.research-card {
    background: linear-gradient(140deg, var(--card-gradient-start) 0%, var(--card-gradient-end) 100%);
    padding: var(--spacing-sm) var(--spacing-md);
    position: relative;
    /* Squiggly border effect */
    border: none;
    outline: 2px solid var(--pencil-gray);
    outline-offset: -2px;
    border-radius: 3px 6px 4px 8px;
    box-shadow:
        3px 3px 0 var(--border-color),
        4px 4px 8px rgba(0,0,0,0.08),
        inset 0 0 0 1px rgba(107, 107, 107, 0.3);
    transform: rotate(-0.6deg);
    /* Hand-drawn border simulation */
    background-image:
        linear-gradient(140deg, var(--card-gradient-start) 0%, var(--card-gradient-end) 100%),
        url("data:image/svg+xml,%3Csvg width='100' height='100' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M0,0 Q25,3 50,0 T100,0 L100,3 Q75,0 50,3 T0,3 Z' fill='%236b6b6b' opacity='0.4'/%3E%3C/svg%3E");
    background-clip: padding-box, border-box;
}

.research-card:nth-child(2) {
    transform: rotate(0.8deg);
    border-radius: 6px 3px 8px 4px;
}

.research-card:nth-child(3) {
    transform: rotate(-0.4deg);
    border-radius: 4px 8px 3px 6px;
}

.research-card:nth-child(4) {
    transform: rotate(0.5deg);
    border-radius: 8px 4px 6px 3px;
}

.research-card:nth-child(5) {
    transform: rotate(-0.7deg);
    border-radius: 5px 7px 4px 9px;
}

.research-card:nth-child(6) {
    transform: rotate(0.6deg);
    border-radius: 7px 3px 9px 5px;
}

.research-card h3 {
    color: var(--primary-color);
    margin-bottom: var(--spacing-sm);
    font-family: var(--font-accent);
    font-size: 1.35rem;
    line-height: 1.3;
}

.research-card p {
    color: var(--text-light);
    font-size: 0.95rem;
    margin-bottom: 0;
}

/* Research card as link */
a.research-card {
    display: block;
    text-decoration: none;
    border-bottom: none;
}

a.research-card h3 {
    font-size: 1.3rem;
    line-height: 1.3;
}

.card-year {
    display: inline-block;
    background: var(--primary-color);
    color: white;
    padding: 2px 10px;
    font-size: 0.8rem;
    font-family: var(--font-main);
    margin-bottom: var(--spacing-sm);
}

.card-venue {
    font-style: italic;
    margin-top: var(--spacing-sm);
}

/* Publication Carousel */
.pub-carousel {
    display: flex;
    gap: var(--spacing-sm);
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    padding: var(--spacing-sm);
    margin: 0;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: thin;
    scrollbar-color: var(--border-color) transparent;
}

.pub-carousel::-webkit-scrollbar {
    height: 8px;
}

.pub-carousel::-webkit-scrollbar-track {
    background: transparent;
}

.pub-carousel::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 4px;
}

.pub-carousel .research-card {
    flex: 0 0 270px;
    scroll-snap-align: start;
}

.carousel-wrapper {
    position: relative;
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.carousel-btn {
    flex-shrink: 0;
    width: 36px;
    height: 36px;
    border: 2px solid var(--pencil-gray);
    background: var(--background);
    color: var(--text-color);
    font-size: 1.2rem;
    cursor: pointer;
    border-radius: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.carousel-btn:hover {
    color: var(--primary-color);
    border-color: var(--primary-color);
}

.carousel-hint {
    text-align: center;
    font-size: 0.85rem;
    margin-top: var(--spacing-sm);
    margin-bottom: 0;
}

/* Publications - Paper snippet style */
.publication-list {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
}

@media (max-width: 900px) {
    .publication-list {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 600px) {
    .publication-list {
        grid-template-columns: 1fr;
    }
}

.publication-item {
    background: linear-gradient(135deg, var(--card-gradient-start) 0%, var(--card-gradient-end) 100%);
    padding: var(--spacing-md);
    position: relative;
    border: 2px solid var(--pencil-gray);
    border-radius: 4px 6px 3px 7px;
    box-shadow:
        3px 3px 0 var(--border-color),
        4px 4px 8px rgba(0,0,0,0.08);
    transform: rotate(-1.2deg);
}

.publication-item:nth-child(2) {
    transform: rotate(1.8deg);
    border-radius: 6px 4px 7px 3px;
}

.publication-item:nth-child(3) {
    transform: rotate(-0.5deg);
    border-radius: 5px 3px 6px 4px;
}

.publication-item:nth-child(4) {
    transform: rotate(2.1deg);
    border-radius: 3px 7px 4px 6px;
}

.publication-item:nth-child(5) {
    transform: rotate(-1.8deg);
    border-radius: 7px 4px 8px 3px;
}

.publication-item:nth-child(6) {
    transform: rotate(0.9deg);
    border-radius: 4px 8px 5px 7px;
}

.publication-item:nth-child(7) {
    transform: rotate(-2deg);
}

.publication-item:nth-child(8) {
    transform: rotate(1.5deg);
}

.publication-item:nth-child(9) {
    transform: rotate(-0.7deg);
}

.publication-title {
    font-family: var(--font-accent);
    font-weight: 500;
    font-size: 1.25rem;
    color: var(--primary-color);
    margin-bottom: var(--spacing-xs);
    line-height: 1.3;
}

.publication-title a {
    color: inherit;
    border-bottom: none;
}

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

.publication-authors {
    color: var(--text-light);
    font-size: 0.92rem;
    margin-bottom: var(--spacing-xs);
}

.publication-venue {
    font-style: italic;
    color: var(--text-light);
    font-size: 0.88rem;
}

.publication-year {
    display: inline-block;
    background: var(--primary-color);
    color: white;
    padding: 2px 10px;
    font-size: 0.8rem;
    font-family: var(--font-main);
    margin-right: var(--spacing-sm);
}

.publication-links {
    margin-top: var(--spacing-sm);
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
}

.pub-link {
    font-size: 0.82rem;
    padding: 4px 12px;
    background: var(--background-alt);
    border: 1px solid var(--border-color);
    color: var(--primary-color);
    font-family: var(--font-main);
}

/* Publication Filters */
.filter-bar {
    display: flex;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
    flex-wrap: wrap;
}

.filter-btn {
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--background);
    border: 1px solid var(--border-color);
    cursor: pointer;
    font-family: var(--font-main);
    font-size: 0.88rem;
    color: var(--text-color);
}

.filter-btn.active {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

/* Stats - Handwritten style numbers */
.stats-row {
    display: flex;
    gap: var(--spacing-xl);
    margin: var(--spacing-lg) 0;
    flex-wrap: wrap;
}

.stat-item {
    text-align: center;
}

.stat-number {
    font-family: var(--font-accent);
    font-size: 3.2rem;
    color: var(--primary-color);
    display: block;
    line-height: 1;
}

.stat-label {
    color: var(--text-light);
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

/* PhD Students */
.phd-section {
    margin-top: var(--spacing-lg);
}

.phd-label {
    font-size: 0.85rem;
    color: var(--text-light);
    margin-bottom: var(--spacing-sm);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.phd-students {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-md);
}

.phd-student {
    font-family: var(--font-accent);
    font-size: 1.2rem;
    color: var(--text-color);
    padding: var(--spacing-sm) var(--spacing-md);
    background: linear-gradient(135deg, var(--card-gradient-start) 0%, var(--card-gradient-end) 100%);
    border: 1px solid var(--pencil-gray);
    box-shadow: 2px 2px 0 var(--border-color);
    border-radius: 2px 4px 3px 5px;
    text-decoration: none;
}

.phd-student:nth-child(1) { transform: rotate(-0.6deg); }
.phd-student:nth-child(2) { transform: rotate(0.8deg); }
.phd-student:nth-child(3) { transform: rotate(-0.4deg); }
.phd-student:nth-child(4) { transform: rotate(0.5deg); }

/* Projects */
.project-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--spacing-lg);
}

.project-card {
    background: var(--background);
    border: 1px solid var(--pencil-gray);
    box-shadow: 3px 3px 0 var(--border-color);
    overflow: hidden;
}

.project-image {
    width: 100%;
    height: 160px;
    object-fit: cover;
    background: var(--background-alt);
    border-bottom: 1px solid var(--border-color);
}

.project-content {
    padding: var(--spacing-lg);
}

.project-card h3 {
    font-family: var(--font-heading);
    margin-bottom: var(--spacing-sm);
}

.project-status {
    display: inline-block;
    padding: 2px 10px;
    font-size: 0.78rem;
    margin-bottom: var(--spacing-sm);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border: 1px solid var(--border-color);
}

.project-status.active {
    border-color: var(--primary-color);
    color: var(--primary-color);
}

.project-status.completed {
    color: var(--text-light);
}

/* CV Page */
.cv-section {
    margin-bottom: var(--spacing-xl);
}

.cv-section h2 {
    font-family: var(--font-heading);
    border-bottom: 1px solid var(--pencil-gray);
    padding-bottom: var(--spacing-sm);
}

.cv-entry {
    display: grid;
    grid-template-columns: 110px 1fr;
    gap: var(--spacing-lg);
    padding: var(--spacing-md) 0;
    border-bottom: 1px dashed var(--border-color);
}

@media (max-width: 600px) {
    .cv-entry {
        grid-template-columns: 1fr;
        gap: var(--spacing-sm);
    }
}

.cv-date {
    font-family: var(--font-accent);
    font-size: 1.2rem;
    color: var(--pencil-gray);
}

.cv-title {
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
}

.cv-org {
    color: var(--primary-color);
}

/* Awards */
.awards-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.award-item {
    display: flex;
    gap: var(--spacing-md);
    align-items: baseline;
}

.award-year {
    font-family: var(--font-accent);
    font-size: 1.2rem;
    color: var(--pencil-gray);
    min-width: 80px;
}

/* Footer */
.site-footer {
    background: var(--primary-color);
    color: rgba(253, 252, 249, 0.8);
    padding: var(--spacing-lg) 0;
    margin-top: var(--spacing-xl);
}

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

.site-footer p {
    margin-bottom: 0;
    font-size: 0.9rem;
}

.footer-links {
    display: flex;
    gap: var(--spacing-lg);
}

.footer-links a {
    color: rgba(253, 252, 249, 0.8);
    font-size: 0.9rem;
    border-bottom: none;
}

/* Data/Code links - taped-on style */
.data-links {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-md);
}

.data-link {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.4rem 0.8rem;
    background: linear-gradient(135deg, var(--card-gradient-start) 0%, var(--card-gradient-end) 100%);
    border: 1px dashed var(--pencil-gray);
    font-family: var(--font-accent);
    font-size: 0.95rem;
    color: var(--text-color);
    position: relative;
    transform: rotate(-0.5deg);
    text-decoration: none;
}

.data-link:nth-child(2) { transform: rotate(0.7deg); }
.data-link:nth-child(3) { transform: rotate(-0.3deg); }

/* Tape effect - translucent strip across top */
.data-link::before {
    content: '';
    position: absolute;
    top: -6px;
    left: 15%;
    right: 15%;
    height: 14px;
    background: linear-gradient(180deg, var(--card-gradient-start) 0%, var(--card-gradient-end) 100%);
    border: 1px solid var(--border-color);
    border-radius: 1px;
    transform: rotate(0.5deg);
    opacity: 0.9;
}

.data-link:hover {
    color: var(--primary-color);
}

.data-link svg {
    width: 14px;
    height: 14px;
    opacity: 0.6;
}

/* Subtle hover for all card elements - text color shift */
.contact-link:hover,
.research-card:hover,
.phd-student:hover,
.publication-item:hover {
    color: var(--primary-color);
}

/* Mobile: simplified cards with regular fonts */
@media (max-width: 768px) {
    .research-card h3,
    a.research-card h3 {
        font-family: var(--font-main);
        font-size: 1.1rem;
        font-weight: 600;
    }

    .publication-title {
        font-family: var(--font-main);
        font-size: 1.05rem;
        font-weight: 600;
    }

    .contact-link {
        font-family: var(--font-main);
        font-size: 0.9rem;
    }

    .phd-student {
        font-family: var(--font-main);
        font-size: 1rem;
    }

    /* Simplify card styling on mobile */
    .research-card,
    .publication-item,
    .contact-link,
    .phd-student {
        transform: none;
        border-radius: 4px;
        box-shadow: none;
        border: 1px solid var(--border-color);
        background: var(--background);
    }

    .pub-carousel .research-card {
        flex: 0 0 240px;
    }

    .data-link {
        font-family: var(--font-main);
        font-size: 0.85rem;
        transform: none;
        border: 1px solid var(--border-color);
        background: var(--background);
    }

    .data-link::before {
        display: none;
    }
}

/* Utility Classes */
.text-center { text-align: center; }
.text-muted { color: var(--text-light); }
.mt-1 { margin-top: var(--spacing-md); }
.mt-2 { margin-top: var(--spacing-lg); }
.mb-1 { margin-bottom: var(--spacing-md); }
.mb-2 { margin-bottom: var(--spacing-lg); }

/* Handwritten class */
.handwritten {
    font-family: var(--font-accent);
    font-size: 1.3em;
}

/* Page transitions */
.page-content {
    animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

/* Print styles */
@media print {
    .site-header, .site-footer, .nav-toggle { display: none; }
    .container { max-width: 100%; }
    body { background: white; background-image: none; }
    a { color: var(--text-color); border-bottom: none; }
}

/* Selection */
::selection {
    background: var(--primary-color);
    color: white;
}

/* Blockquote */
blockquote {
    border-left: 2px solid var(--pencil-gray);
    padding-left: var(--spacing-md);
    margin: var(--spacing-lg) 0;
    font-style: italic;
    color: var(--text-light);
}