/* Modern CSS for Balazs Lab Website */

/* CSS Custom Properties */
:root {
    /* Colors */
    --color-primary: #2563eb;
    --color-primary-dark: #1d4ed8;
    --color-secondary: #f59e0b;
    --color-accent: #10b981;
    
    --color-text: #1f2937;
    --color-text-light: #6b7280;
    --color-text-muted: #9ca3af;
    
    --color-bg: #ffffff;
    --color-bg-light: #f9fafb;
    --color-bg-dark: #111827;
    
    --color-border: #e5e7eb;
    --color-border-light: #f3f4f6;
    
    --color-success: #10b981;
    --color-warning: #f59e0b;
    --color-error: #ef4444;
    
    /* Typography */
    --font-family-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-family-serif: 'Merriweather', Georgia, 'Times New Roman', serif;
    
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;
    --font-size-4xl: 2.25rem;
    --font-size-5xl: 3rem;
    
    --font-weight-light: 300;
    --font-weight-normal: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;
    
    --line-height-tight: 1.25;
    --line-height-normal: 1.5;
    --line-height-relaxed: 1.75;
    
    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;
    
    /* Layout */
    --container-max-width: 1200px;
    --header-height: 80px;
    --nav-height: 60px;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
    
    /* Transitions */
    --transition-fast: 150ms ease-in-out;
    --transition-normal: 250ms ease-in-out;
    --transition-slow: 350ms ease-in-out;
    
    /* Border radius */
    --radius-sm: 0.25rem;
    --radius-md: 0.375rem;
    --radius-lg: 0.5rem;
    --radius-xl: 0.75rem;
    --radius-2xl: 1rem;
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-family-sans);
    font-size: var(--font-size-base);
    line-height: var(--line-height-normal);
    color: var(--color-text);
    background-color: var(--color-bg);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-family-serif);
    font-weight: var(--font-weight-bold);
    line-height: var(--line-height-tight);
    color: var(--color-text);
    margin-bottom: var(--spacing-md);
}

h1 { font-size: var(--font-size-4xl); }
h2 { font-size: var(--font-size-3xl); }
h3 { font-size: var(--font-size-2xl); }
h4 { font-size: var(--font-size-xl); }
h5 { font-size: var(--font-size-lg); }
h6 { font-size: var(--font-size-base); }

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

a {
    color: var(--color-primary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

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

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

/* Header */
.header {
    background: linear-gradient(135deg, var(--color-bg-dark) 0%, #1f2937 100%);
    color: white;
    padding: var(--spacing-xl) 0;
    box-shadow: var(--shadow-lg);
}

.header__content {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: clamp(var(--spacing-sm), 2vw, var(--spacing-lg));
    align-items: center;
    position: relative;
}

.header__logo {
    /* Dynamic logo container that scales smoothly with viewport */
    width: clamp(50px, min(20vw, 300px), 300px);
    height: auto;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: visible;
    position: relative;
    flex-shrink: 0;
    transition: width 0.3s ease;
}

.header__logo-img {
    width: clamp(50px, min(20vw, 300px), 300px);
    height: auto;
    /* Show full logo without cropping */
    object-fit: contain;
    
    /* Ensure proper display */
    display: block;
    
    /* Add subtle shadow for better visibility on dark background */
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.3));
    
    /* Additional properties for better cross-browser compatibility */
    max-width: 100%;
    border: none;
    outline: none;
    transition: width 0.3s ease;
}

.header__text {
    text-align: center;
}

.header__title {
    margin-bottom: var(--spacing-sm);
    font-family: var(--font-family-serif);
    font-size: clamp(var(--font-size-lg), min(3vw, 2.5rem), 2.5rem);
    transition: font-size 0.3s ease;
}

.header__title-link {
    color: white;
    transition: color var(--transition-fast);
}

.header__title-link:hover {
    color: var(--color-secondary);
}

.header__subtitle {
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-xs);
    font-family: var(--font-family-serif);
}

.header__subtitle-link {
    color: var(--color-secondary);
}

.header__location {
    font-size: var(--font-size-base);
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-xs);
    font-family: var(--font-family-serif);
}

.header__institute {
    font-size: var(--font-size-lg);
    font-family: var(--font-family-serif);
}

.header__institute-link {
    color: var(--color-secondary);
}

/* Navigation */
.navigation {
    background-color: var(--color-bg-dark);
    border-bottom: 1px solid var(--color-border);
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: var(--shadow-md);
}

.nav__content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    min-height: var(--nav-height);
}

.nav__list {
    display: flex;
    list-style: none;
    gap: 0;
    align-items: center;
    flex-wrap: nowrap;
    width: 100%;
    justify-content: space-between;
}

.nav__item {
    position: relative;
    white-space: nowrap;
    flex-shrink: 0;
}

.nav__link {
    color: white;
    font-weight: var(--font-weight-medium);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
    display: block;
    white-space: nowrap;
    text-align: center;
}

.nav__link:hover,
.nav__item--active .nav__link {
    color: var(--color-secondary);
    background-color: rgba(255, 255, 255, 0.1);
}

.nav__mobile-toggle {
    display: none;
    background: none;
    border: none;
}

.header__signin {
    display: flex;
    align-items: center;
    position: absolute;
    bottom: var(--spacing-md);
    right: var(--spacing-lg);
    flex-shrink: 0;
    z-index: 10;
}

.header__signout {
    color: white;
    text-decoration: none;
    font-size: var(--font-size-sm);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-sm);
    background-color: rgba(255, 255, 255, 0.1);
    transition: all var(--transition-fast);
}

.header__signout:hover {
    background-color: rgba(255, 255, 255, 0.2);
    color: white;
}



.nav__mobile-toggle:hover {
    background-color: rgba(255, 255, 255, 0.1);
}

.nav__mobile-icon {
    display: block;
    width: 24px;
    height: 2px;
    background-color: currentColor;
    position: relative;
    transition: all var(--transition-fast);
}

.nav__mobile-icon::before,
.nav__mobile-icon::after {
    content: '';
    position: absolute;
    width: 24px;
    height: 2px;
    background-color: currentColor;
    transition: all var(--transition-fast);
}

.nav__mobile-icon::before {
    top: -8px;
}

.nav__mobile-icon::after {
    bottom: -8px;
}

.nav__mobile-toggle[aria-expanded="true"] .nav__mobile-icon {
    background-color: transparent;
}

.nav__mobile-toggle[aria-expanded="true"] .nav__mobile-icon::before {
    transform: rotate(45deg);
    top: 0;
}

.nav__mobile-toggle[aria-expanded="true"] .nav__mobile-icon::after {
    transform: rotate(-45deg);
    bottom: 0;
}

.nav__intranet {
    display: flex;
    list-style: none;
    gap: 0;
    padding: var(--spacing-sm) 0;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    flex-wrap: nowrap;
    justify-content: space-between;
    background-color: var(--color-primary);
    margin-top: 0;
    width: 100%;
}

.nav__intranet-item {
    position: relative;
    white-space: nowrap;
    flex-shrink: 0;
    margin: 0;
}

.nav__intranet-link {
    color: white;
    font-weight: var(--font-weight-medium);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
    display: block;
    white-space: nowrap;
    text-align: center;
    text-decoration: none;
}

.nav__intranet-link:hover,
.nav__intranet-item--active .nav__intranet-link {
    color: var(--color-secondary);
    background-color: rgba(255, 255, 255, 0.1);
}

/* Main Content */
.main {
    min-height: calc(100vh - var(--header-height) - var(--nav-height) - 200px);
}

/* Hero Section */
.hero {
    padding: var(--spacing-3xl) 0;
    background: linear-gradient(135deg, var(--color-bg-light) 0%, white 100%);
}

.hero__slider {
    position: relative;
    max-width: 960px;
    margin: 0 auto;
    border-radius: var(--radius-2xl);
    overflow: hidden;
    box-shadow: var(--shadow-xl);
}

.hero__slide {
    display: none;
    position: relative;
}

.hero__slide--active {
    display: block;
}

.hero__image {
    position: relative;
    width: 100%;
    height: 360px;
    overflow: hidden;
}

.hero__img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.hero__slide:hover .hero__img {
    transform: scale(1.05);
}

.hero__content {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(transparent, rgba(0, 0, 0, 0.8));
    color: white;
    padding: var(--spacing-2xl) var(--spacing-xl);
}

.hero__title {
    font-size: var(--font-size-3xl);
    margin-bottom: var(--spacing-sm);
    color: white;
}

.hero__description {
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-lg);
    opacity: 0.9;
}

.hero__cta {
    display: inline-block;
    background-color: var(--color-secondary);
    color: white;
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--radius-lg);
    font-weight: var(--font-weight-medium);
    transition: all var(--transition-fast);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.hero__cta:hover {
    background-color: #d97706;
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
    color: white;
}

/* Hero Navigation */
.hero__nav {
    position: absolute;
    top: 50%;
    left: 0;
    right: 0;
    transform: translateY(-50%);
    display: flex;
    justify-content: space-between;
    padding: 0 var(--spacing-lg);
    pointer-events: none;
}

.hero__nav-btn {
    background-color: rgba(255, 255, 255, 0.9);
    border: none;
    border-radius: 50%;
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all var(--transition-fast);
    pointer-events: auto;
    box-shadow: var(--shadow-md);
}

.hero__nav-btn:hover {
    background-color: white;
    transform: scale(1.1);
    box-shadow: var(--shadow-lg);
}

.hero__nav-btn svg {
    color: var(--color-text);
}

/* Hero Indicators */
.hero__indicators {
    display: flex;
    justify-content: center;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-lg);
}

.hero__indicator {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    border: 2px solid var(--color-border);
    background-color: transparent;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.hero__indicator:hover,
.hero__indicator--active {
    background-color: var(--color-primary);
    border-color: var(--color-primary);
}

/* Footer */
.footer {
    background-color: var(--color-bg-dark);
    color: white;
    padding: var(--spacing-2xl) 0;
    margin-top: var(--spacing-3xl);
}

.footer__auth,
.footer__social,
.footer__copyright {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.footer__copyright:last-child {
    margin-bottom: 0;
}

.auth__content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-md);
}

.auth__signout {
    color: var(--color-secondary);
    font-weight: var(--font-weight-medium);
    padding: var(--spacing-sm) var(--spacing-lg);
    border: 2px solid var(--color-secondary);
    border-radius: var(--radius-lg);
    transition: all var(--transition-fast);
}

.auth__signout:hover {
    background-color: var(--color-secondary);
    color: white;
}

.fallback-signin-btn {
    background-color: var(--color-primary);
    color: white;
    border: none;
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--radius-lg);
    font-weight: var(--font-weight-medium);
    cursor: pointer;
    transition: all var(--transition-fast);
    font-size: var(--font-size-base);
}

.fallback-signin-btn:hover {
    background-color: var(--color-primary-dark);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.alt-auth {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-lg);
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-lg);
    margin-top: var(--spacing-md);
}

.alt-auth__text {
    color: white;
    font-size: var(--font-size-sm);
    text-align: center;
    margin: 0;
}

.alt-auth__input {
    padding: var(--spacing-sm) var(--spacing-md);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    font-size: var(--font-size-base);
    width: 250px;
    max-width: 100%;
}

.alt-auth__btn {
    background-color: var(--color-accent);
    color: white;
    border: none;
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--radius-md);
    font-weight: var(--font-weight-medium);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.alt-auth__btn:hover {
    background-color: var(--color-accent);
    opacity: 0.9;
    transform: translateY(-1px);
}

.social__content {
    display: flex;
    justify-content: center;
}

.social__link {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    color: white;
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--radius-lg);
    transition: all var(--transition-fast);
    background-color: rgba(255, 255, 255, 0.1);
}

.social__link:hover {
    background-color: var(--color-primary);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.social__link svg {
    width: 20px;
    height: 20px;
}

.footer__copyright p {
    color: var(--color-text-muted);
    font-size: var(--font-size-sm);
}

/* Responsive Design */
@media (max-width: 768px) {
    .header__content {
        grid-template-columns: auto 1fr;
        text-align: left;
        gap: var(--spacing-sm);
    }
    
    .header__logo {
        margin: 0;
    }
    
    .nav__list {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background-color: var(--color-bg-dark);
        flex-direction: column;
        padding: var(--spacing-lg);
        border-top: 1px solid var(--color-border);
        box-shadow: var(--shadow-lg);
        z-index: 1000;
    }
    
    .nav__list--open {
        display: flex !important;
    }
    
    .nav__mobile-toggle {
        display: block !important;
        color: white;
        padding: var(--spacing-sm);
        border-radius: var(--radius-sm);
        cursor: pointer;
    }
    
    .nav__content {
        position: relative;
    }
    
    .header__signin {
        display: flex !important;
        position: absolute;
        bottom: var(--spacing-md);
        right: var(--spacing-lg);
        margin-left: auto;
    }
    
    /* Intranet navigation mobile styles */
    .navigation--intranet .nav__list {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background-color: var(--color-bg-dark);
        flex-direction: column;
        padding: var(--spacing-lg);
        border-top: 1px solid var(--color-border);
        box-shadow: var(--shadow-lg);
        z-index: 1000;
    }
    
    .navigation--intranet .nav__list--open {
        display: flex !important;
    }
    
    .navigation--intranet .nav__mobile-toggle {
        display: block !important;
        color: white;
        padding: var(--spacing-sm);
        border-radius: var(--radius-sm);
        cursor: pointer;
    }
    
    .navigation--intranet .nav__item {
        margin: var(--spacing-xs) 0;
    }
    
    .navigation--intranet .nav__link {
        padding: var(--spacing-sm) var(--spacing-md);
        border-radius: var(--radius-sm);
        display: block;
        width: 100%;
        text-align: left;
    }
    
    .hero__content {
        padding: var(--spacing-lg) var(--spacing-md);
    }
    
    .hero__title {
        font-size: var(--font-size-2xl);
    }
    
    .hero__description {
        font-size: var(--font-size-base);
    }
    
    .hero__nav {
        padding: 0 var(--spacing-md);
    }
    
    .hero__nav-btn {
        width: 40px;
        height: 40px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 var(--spacing-md);
    }
    
    .header {
        padding: var(--spacing-lg) 0;
    }
    

    
    .hero {
        padding: var(--spacing-2xl) 0;
    }
    
    .hero__image {
        height: 240px;
    }
    
    .hero__content {
        padding: var(--spacing-md);
    }
    
    .hero__title {
        font-size: var(--font-size-xl);
    }
    
    .hero__description {
        font-size: var(--font-size-sm);
    }
    
    .hero__cta {
        padding: var(--spacing-xs) var(--spacing-md);
        font-size: var(--font-size-sm);
    }
    
    /* Research page responsive */
    .page-header {
        padding: var(--spacing-2xl) 0;
    }
    
    .page-header__title {
        font-size: var(--font-size-2xl);
    }
    
    .page-header__description {
        font-size: var(--font-size-base);
        padding: 0 var(--spacing-md);
    }
    
    .research-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
        padding: 0 var(--spacing-md);
    }
    
    .research-card__content {
        padding: var(--spacing-lg);
    }
    
    .research-card__title {
        font-size: var(--font-size-lg);
    }
    
    /* People page responsive */
    .section-title {
        font-size: var(--font-size-2xl);
        margin-bottom: var(--spacing-2xl);
    }
    
    .members-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
        padding: 0 var(--spacing-md);
    }
    
    .alumni-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
        padding: 0 var(--spacing-md);
    }
    
    .member-card__content {
        padding: var(--spacing-md);
    }
    
    .member-card__name {
        font-size: var(--font-size-base);
    }
    
    .member-card__title {
        font-size: var(--font-size-sm);
    }
    
    /* Positions page responsive */
    .positions-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
        padding: 0 var(--spacing-md);
    }
    
    .position-card__header {
        flex-direction: column;
        gap: var(--spacing-sm);
        text-align: center;
    }
    
    .position-card__title {
        font-size: var(--font-size-lg);
    }
    
    .contact-title {
        font-size: var(--font-size-2xl);
    }
    
    .contact-description {
        font-size: var(--font-size-base);
        padding: 0 var(--spacing-md);
    }
}

/* Utility Classes */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: var(--spacing-xs); }
.mb-2 { margin-bottom: var(--spacing-sm); }
.mb-3 { margin-bottom: var(--spacing-md); }
.mb-4 { margin-bottom: var(--spacing-lg); }
.mb-5 { margin-bottom: var(--spacing-xl); }

.mt-0 { margin-top: 0; }
.mt-1 { margin-top: var(--spacing-xs); }
.mt-2 { margin-top: var(--spacing-sm); }
.mt-3 { margin-top: var(--spacing-md); }
.mt-4 { margin-top: var(--spacing-lg); }
.mt-5 { margin-top: var(--spacing-xl); }

/* Page Header */
.page-header {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    color: white;
    padding: var(--spacing-3xl) 0;
    text-align: center;
}

.page-header__title {
    font-size: var(--font-size-4xl);
    margin-bottom: var(--spacing-md);
    color: white;
}

.page-header__description {
    font-size: var(--font-size-lg);
    max-width: 600px;
    margin: 0 auto;
    opacity: 0.9;
    line-height: var(--line-height-relaxed);
}

/* Research Projects */
.research-projects {
    padding: var(--spacing-3xl) 0;
    background-color: var(--color-bg-light);
}

.research-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: var(--spacing-2xl);
    margin-top: var(--spacing-2xl);
}

.research-card {
    background: white;
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-normal);
    border: 1px solid var(--color-border-light);
}

.research-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
}

.research-card__image {
    width: 100%;
    height: 200px;
    overflow: hidden;
}

.research-card__img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.research-card:hover .research-card__img {
    transform: scale(1.05);
}

.research-card__content {
    padding: var(--spacing-xl);
}

.research-card__title {
    font-size: var(--font-size-xl);
    margin-bottom: var(--spacing-md);
    color: var(--color-text);
    font-weight: var(--font-weight-semibold);
}

.research-card__description {
    color: var(--color-text-light);
    line-height: var(--line-height-relaxed);
    margin-bottom: 0;
}

/* Section Titles */
.section-title {
    font-size: var(--font-size-3xl);
    text-align: center;
    margin-bottom: var(--spacing-3xl);
    color: var(--color-text);
    position: relative;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background: linear-gradient(90deg, var(--color-primary), var(--color-secondary));
    border-radius: 2px;
}

/* Lab Members */
.lab-members {
    padding: var(--spacing-3xl) 0;
    background-color: white;
}

.members-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: var(--spacing-sm);
    margin-top: var(--spacing-xl);
}

/* Responsive grid for different screen sizes */
@media (max-width: 1200px) {
    .members-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

@media (max-width: 992px) {
    .members-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

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

@media (max-width: 480px) {
    .members-grid {
        grid-template-columns: 1fr;
    }
}

.member-card {
    position: relative;
    background: white;
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-normal);
    border: 1px solid var(--color-border-light);
    text-align: center;
}

.member-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
}

.member-card--pi {
    border: 2px solid var(--color-primary);
    box-shadow: var(--shadow-lg);
}

.member-card--pi::before {
    content: 'PI';
    position: absolute;
    top: 10px;
    right: 10px;
    background: var(--color-primary);
    color: white;
    padding: 4px 8px;
    border-radius: var(--radius-sm);
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-bold);
}

.member-card--spirit {
    border: 2px solid var(--color-secondary);
}

.member-card--join {
    border: 2px solid var(--color-accent);
    background: linear-gradient(135deg, var(--color-accent) 0%, #059669 100%);
    color: white;
}

.member-card--join .member-card__name,
.member-card--join .member-card__title,
.member-card--join .member-card__description {
    color: white;
}

.member-card__image {
    width: 100%;
    height: auto;
    overflow: hidden;
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
    background-color: var(--color-bg-light);
    padding: var(--spacing-sm);
}

.member-card__img {
    width: 100%;
    height: auto;
    max-height: none;
    object-fit: contain;
    transition: transform var(--transition-slow);
}

.member-card:hover .member-card__img {
    transform: scale(1.05);
}

.member-card__content {
    padding: var(--spacing-md);
}

.member-card__name {
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-xs);
    color: var(--color-text);
    font-weight: var(--font-weight-semibold);
}

.member-card__title {
    font-size: var(--font-size-base);
    color: var(--color-primary);
    font-weight: var(--font-weight-medium);
    margin-bottom: var(--spacing-sm);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.member-card__description {
    color: var(--color-text-light);
    line-height: var(--line-height-relaxed);
    margin-bottom: var(--spacing-md);
    font-style: italic;
    opacity: 0;
    max-height: 0;
    overflow: hidden;
    transition: all var(--transition-normal);
}

.member-card:hover .member-card__description {
    opacity: 1;
    max-height: 100px;
    margin-bottom: var(--spacing-md);
}

.member-card__links {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    justify-content: center;
}

.member-card__link {
    color: var(--color-primary);
    font-size: var(--font-size-sm);
    padding: var(--spacing-xs) var(--spacing-sm);
    border: 1px solid var(--color-primary);
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
    text-decoration: none;
}

.member-card__link:hover {
    background-color: var(--color-primary);
    color: white;
}

.member-card__join-link {
    color: white;
    text-decoration: none;
}

.member-card__join-link:hover {
    color: var(--color-bg-light);
}

/* Lab Alumni */
.lab-alumni {
    padding: var(--spacing-3xl) 0;
    background-color: var(--color-bg-light);
}

.alumni-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: var(--spacing-sm);
    margin-top: var(--spacing-xl);
}

/* Responsive grid for alumni on different screen sizes */
@media (max-width: 1200px) {
    .alumni-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

@media (max-width: 992px) {
    .alumni-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

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

@media (max-width: 480px) {
    .alumni-grid {
        grid-template-columns: 1fr;
    }
}

.alumni-card {
    background: white;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-normal);
    border: 1px solid var(--color-border-light);
    text-align: center;
}

.alumni-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.alumni-card__image {
    width: 100%;
    height: auto;
    overflow: hidden;
    display: flex;
    justify-content: center;
    align-items: center;
    background-color: var(--color-bg-light);
    padding: var(--spacing-xs);
}

.alumni-card__img {
    width: 100%;
    height: auto;
    max-height: none;
    object-fit: contain;
    transition: transform var(--transition-slow);
}

.alumni-card:hover .alumni-card__img {
    transform: scale(1.05);
}

.alumni-card__content {
    padding: var(--spacing-sm);
}

.alumni-card__name {
    font-size: var(--font-size-base);
    margin-bottom: var(--spacing-xs);
    color: var(--color-text);
    font-weight: var(--font-weight-semibold);
}

.alumni-card__title {
    font-size: var(--font-size-sm);
    color: var(--color-primary);
    font-weight: var(--font-weight-medium);
    margin-bottom: var(--spacing-xs);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.alumni-card__period {
    font-size: var(--font-size-xs);
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-xs);
    font-weight: var(--font-weight-medium);
}

.alumni-card__description {
    color: var(--color-text-light);
    line-height: var(--line-height-normal);
    margin-bottom: var(--spacing-xs);
    font-style: italic;
    font-size: var(--font-size-sm);
    opacity: 0;
    max-height: 0;
    overflow: hidden;
    transition: all var(--transition-normal);
}

.alumni-card:hover .alumni-card__description {
    opacity: 1;
    max-height: 100px;
    margin-bottom: var(--spacing-xs);
}

.alumni-card__current {
    color: var(--color-text);
    font-size: var(--font-size-sm);
    margin-bottom: var(--spacing-sm);
    font-weight: var(--font-weight-medium);
}

.alumni-card__links {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
    justify-content: center;
}

.alumni-card__link {
    color: var(--color-primary);
    font-size: var(--font-size-xs);
    padding: 2px var(--spacing-xs);
    border: 1px solid var(--color-primary);
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
    text-decoration: none;
}

.alumni-card__link:hover {
    background-color: var(--color-primary);
    color: white;
}

/* Positions Page */
.positions-intro {
    padding: var(--spacing-2xl) 0;
    background-color: white;
}

.intro-content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.intro-text {
    font-size: var(--font-size-lg);
    line-height: var(--line-height-relaxed);
    color: var(--color-text-light);
}

.available-positions {
    padding: var(--spacing-3xl) 0;
    background-color: var(--color-bg-light);
}

.positions-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--spacing-xl);
    margin-top: var(--spacing-2xl);
}

.position-card {
    background: white;
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-normal);
    border: 1px solid var(--color-border-light);
}

.position-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
}

.position-card--postdoc {
    border-left: 4px solid var(--color-primary);
}

.position-card--grad {
    border-left: 4px solid var(--color-secondary);
}

.position-card--tech {
    border-left: 4px solid var(--color-accent);
}

.position-card__header {
    padding: var(--spacing-lg);
    background: linear-gradient(135deg, var(--color-bg-light) 0%, white 100%);
    border-bottom: 1px solid var(--color-border-light);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.position-card__title {
    font-size: var(--font-size-xl);
    color: var(--color-text);
    margin: 0;
    font-weight: var(--font-weight-semibold);
}

.position-card__badge {
    background: var(--color-primary);
    color: white;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-sm);
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-medium);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.position-card--postdoc .position-card__badge {
    background: var(--color-primary);
}

.position-card--grad .position-card__badge {
    background: var(--color-secondary);
}

.position-card--tech .position-card__badge {
    background: var(--color-accent);
}

.position-card__content {
    padding: var(--spacing-lg);
}

.position-card__description {
    color: var(--color-text);
    line-height: var(--line-height-relaxed);
    margin-bottom: var(--spacing-md);
}

.position-card__note {
    background: var(--color-bg-light);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    border-left: 3px solid var(--color-warning);
    font-size: var(--font-size-sm);
    color: var(--color-text-light);
}

.position-card__programs {
    margin: var(--spacing-md) 0;
}

.position-card__programs h4 {
    font-size: var(--font-size-base);
    color: var(--color-text);
    margin-bottom: var(--spacing-sm);
    font-weight: var(--font-weight-medium);
}

.programs-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.programs-list li {
    margin-bottom: var(--spacing-xs);
    padding-left: var(--spacing-md);
    position: relative;
}

.programs-list li::before {
    content: '→';
    position: absolute;
    left: 0;
    color: var(--color-primary);
    font-weight: var(--font-weight-bold);
}

.programs-list a {
    color: var(--color-primary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.programs-list a:hover {
    color: var(--color-primary-dark);
    text-decoration: underline;
}

.position-card__application {
    text-align: center;
    margin-top: var(--spacing-lg);
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--color-border-light);
}

.position-card__cta {
    display: inline-block;
    background: var(--color-accent);
    color: white;
    padding: var(--spacing-sm) var(--spacing-xl);
    border-radius: var(--radius-lg);
    text-decoration: none;
    font-weight: var(--font-weight-medium);
    transition: all var(--transition-fast);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.position-card__cta:hover {
    background: #059669;
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
    color: white;
}

.position-card__job-id {
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
    margin-top: var(--spacing-sm);
    font-family: monospace;
}

/* Contact Section */
.contact-section {
    padding: var(--spacing-3xl) 0;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    color: white;
    text-align: center;
}

.contact-content {
    max-width: 600px;
    margin: 0 auto;
}

.contact-title {
    font-size: var(--font-size-3xl);
    margin-bottom: var(--spacing-md);
    color: white;
}

.contact-description {
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-xl);
    opacity: 0.9;
    line-height: var(--line-height-relaxed);
}

.contact-cta {
    display: inline-block;
    background: var(--color-secondary);
    color: white;
    padding: var(--spacing-md) var(--spacing-xl);
    border-radius: var(--radius-lg);
    text-decoration: none;
    font-weight: var(--font-weight-medium);
    transition: all var(--transition-fast);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-size: var(--font-size-lg);
}

.contact-cta:hover {
    background: #d97706;
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
    color: white;
}

/* Animation Classes */
.fade-in {
    animation: fadeIn 0.5s ease-in-out;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.slide-in-left {
    animation: slideInLeft 0.5s ease-out;
}

@keyframes slideInLeft {
    from { opacity: 0; transform: translateX(-30px); }
    to { opacity: 1; transform: translateX(0); }
}

.slide-in-right {
    animation: slideInRight 0.5s ease-out;
}

@keyframes slideInRight {
    from { opacity: 0; transform: translateX(30px); }
    to { opacity: 1; transform: translateX(0); }
}

/* Research Projects */
.research-projects {
    padding: var(--spacing-3xl) 0;
}

.research-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: var(--spacing-2xl);
    margin-top: var(--spacing-2xl);
}

.research-card {
    background-color: var(--color-bg);
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    transition: all var(--transition-normal);
}

.research-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
}

.research-card__image {
    width: 100%;
    height: 200px;
    overflow: hidden;
}

.research-card__img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-normal);
}

.research-card:hover .research-card__img {
    transform: scale(1.05);
}

.research-card__content {
    padding: var(--spacing-xl);
}

.research-card__title {
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-semibold);
    color: var(--color-text);
    margin-bottom: var(--spacing-md);
    font-family: var(--font-family-serif);
}

.research-card__description {
    color: var(--color-text-light);
    line-height: var(--line-height-relaxed);
    margin-bottom: var(--spacing-lg);
}

/* Publications Grid */
.publications-list {
    padding: var(--spacing-md) 0;
}

.publications-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); /* More flexible sizing */
    gap: var(--spacing-xl);
    margin-top: var(--spacing-2xl);
}

.publication-card {
    background-color: var(--color-bg);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-normal);
    border: 1px solid var(--color-border-light);
    margin: 0; /* Remove any default margins */
    text-align: left; /* Align card content to the left by default */
}

.publication-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
    border-color: var(--color-primary);
}

.publication-card:hover .publication-card__description {
    opacity: 1;
    max-height: none;
    margin-bottom: var(--spacing-md);
    overflow: visible;
}

.publication-card__image {
    width: 100%;
    /* Removed fixed height to allow images to define their own height */
    /* height: 200px; */
    height: auto; /* Allow image to dictate height */
    overflow: hidden;
    background-color: var(--color-bg-light);
    padding: var(--spacing-lg); /* Even more padding for optimal breathing room */
    display: flex; /* Use flexbox to center image if it's smaller */
    justify-content: center;
    align-items: center;
    margin: 0; /* Remove any default margins */
}

.publication-card__img {
    width: 100%;
    height: auto; /* Ensure full image is visible */
    max-height: none; /* Remove fixed max-height to allow dynamic scaling */
    object-fit: contain; /* Ensure the entire image is visible */
    transition: transform var(--transition-normal);
}

.publication-card:hover .publication-card__img {
    transform: scale(1.02);
}

.publication-card__content {
    padding: var(--spacing-sm) var(--spacing-sm) var(--spacing-sm) var(--spacing-lg); /* Even more left padding to match image */
    margin: 0; /* Remove any default margins */
    text-align: left; /* Align content to the left */
}

.publication-card__title {
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-semibold);
    color: var(--color-text);
    margin-bottom: 2px; /* Reduced spacing between title and journal */
    font-family: var(--font-family-serif);
    line-height: 1.2;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.publication-card__journal {
    color: var(--color-primary);
    font-weight: var(--font-weight-medium);
    font-size: 0.7rem;
    margin-bottom: 0; /* Remove bottom margin to reduce space */
    text-transform: uppercase;
    letter-spacing: 0.3px;
    line-height: 1.2;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.publication-card__description {
    color: var(--color-text-light);
    line-height: 1.4;
    margin-bottom: var(--spacing-md);
    font-size: var(--font-size-xs);
    opacity: 0;
    max-height: 0;
    overflow: hidden;
    transition: all var(--transition-normal);
}

.publication-card__links {
    display: flex;
    gap: var(--spacing-xs);
    flex-wrap: nowrap;
    justify-content: center;
    align-items: center;
    padding: var(--spacing-xs);
    background-color: var(--color-bg-light);
    border-top: 1px solid var(--color-border-light);
    margin: 0; /* Remove any default margins */
    text-align: center; /* Keep buttons centered */
}

.publication-card__link {
    display: inline-block;
    padding: 4px var(--spacing-xs);
    background-color: var(--color-primary);
    color: white;
    text-decoration: none;
    border-radius: var(--radius-sm);
    font-size: 0.7rem;
    font-weight: var(--font-weight-medium);
    transition: all var(--transition-fast);
    white-space: nowrap;
    min-width: fit-content;
}

.publication-card__link:hover {
    background-color: var(--color-primary-dark);
    transform: translateY(-1px);
}

/* News Grid and Cards */
.news-grid {
    display: flex;
    gap: var(--spacing-2xl);
    margin-top: var(--spacing-2xl);
    width: 100%;
    max-width: 100%;
}

/* Links Grid and Cards */
.links-list {
    padding: var(--spacing-md) 0;
}

.links-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: var(--spacing-xl);
    margin-top: var(--spacing-2xl);
}

.link-card {
    background-color: var(--color-bg);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-normal);
    border: 1px solid var(--color-border-light);
    margin: 0;
    text-align: left;
}

.link-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
    border-color: var(--color-primary);
}

.link-card__content {
    padding: var(--spacing-lg);
    margin: 0;
    text-align: left;
}

.link-card__title {
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-semibold);
    color: var(--color-text);
    margin-bottom: var(--spacing-sm);
    font-family: var(--font-family-serif);
    line-height: 1.2;
}

.link-card__link {
    color: var(--color-primary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

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

.link-card__description {
    color: var(--color-text-light);
    line-height: 1.4;
    margin-bottom: 0;
    font-size: var(--font-size-sm);
}

/* Contact Page Map Styles */
.location-card__map-container {
    margin-top: var(--spacing-lg);
}

.location-card__map {
    width: 100%;
    height: 300px;
    border-radius: var(--radius-md);
    overflow: hidden;
    margin-bottom: var(--spacing-md);
    border: 1px solid var(--color-border-light);
    display: block;
}

.location-card__map-actions {
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
}

.location-card__map-link,
.location-card__directions-link {
    display: inline-block;
    padding: var(--spacing-sm) var(--spacing-md);
    background-color: var(--color-primary);
    color: white !important;
    text-decoration: none;
    border-radius: var(--radius-sm);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    transition: all var(--transition-fast);
    flex: 1;
    text-align: center;
    min-width: 120px;
}

.location-card__map-link:hover,
.location-card__directions-link:hover {
    background-color: var(--color-primary-dark);
    color: white !important;
    transform: translateY(-1px);
}

.location-card__directions-link {
    background-color: var(--color-secondary);
}

.location-card__directions-link:hover {
    background-color: var(--color-secondary-dark);
}

/* Contact Page Styles */
.contact-card,
.location-card,
.inquiries-card,
.visiting-card,
.social-card {
    background-color: var(--color-bg);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-normal);
    border: 1px solid var(--color-border-light);
    margin-bottom: var(--spacing-lg);
}

.contact-card:hover,
.location-card:hover,
.inquiries-card:hover,
.visiting-card:hover,
.social-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
    border-color: var(--color-primary);
}

.contact-card__content,
.location-card__content,
.inquiries-card__content,
.visiting-card__content,
.social-card__content {
    padding: var(--spacing-lg);
}

.contact-card__name,
.location-card__title,
.inquiries-card__title,
.visiting-card__title,
.social-card__title {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-semibold);
    color: var(--color-text);
    margin-bottom: var(--spacing-sm);
    font-family: var(--font-family-serif);
}

.contact-card__title {
    color: var(--color-primary);
    font-weight: var(--font-weight-medium);
    font-size: var(--font-size-sm);
    margin-bottom: var(--spacing-md);
    text-transform: uppercase;
    letter-spacing: 0.3px;
}

.contact-card__details {
    color: var(--color-text);
    line-height: 1.6;
}

.contact-card__details a,
.location-card__content a,
.inquiries-card__content a,
.visiting-card__content a,
.social-card__content a {
    color: var(--color-secondary);
    text-decoration: none;
    font-weight: var(--font-weight-medium);
    transition: color var(--transition-fast);
}

.contact-card__details a:hover,
.location-card__content a:hover,
.inquiries-card__content a:hover,
.visiting-card__content a:hover,
.social-card__content a:hover {
    color: var(--color-secondary-dark);
    text-decoration: underline;
}

.inquiries-card__email-btn,
.inquiries-card__positions-btn {
    display: inline-block;
    padding: var(--spacing-sm) var(--spacing-md);
    background-color: var(--color-primary);
    color: white;
    text-decoration: none;
    border-radius: var(--radius-sm);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    transition: all var(--transition-fast);
    margin-right: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
}

.inquiries-card__email-btn:hover,
.inquiries-card__positions-btn:hover {
    background-color: var(--color-primary-dark);
    transform: translateY(-1px);
}

.inquiries-card__positions-btn {
    background-color: var(--color-secondary);
    color: white !important;
}

.inquiries-card__positions-btn:hover {
    background-color: var(--color-secondary-dark);
    color: white !important;
}

.visiting-card__list {
    list-style: none;
    padding: 0;
    margin: var(--spacing-md) 0;
}

.visiting-card__list li {
    margin-bottom: var(--spacing-xs);
    color: var(--color-text);
}

.social-card__link {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm) var(--spacing-md);
    background-color: var(--color-primary);
    color: white;
    text-decoration: none;
    border-radius: var(--radius-sm);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    transition: all var(--transition-fast);
}

.social-card__link:hover {
    background-color: var(--color-primary-dark);
    transform: translateY(-1px);
}

.social-card__link--twitter {
    background-color: #1DA1F2;
}

.social-card__link--twitter:hover {
    background-color: #1a8cd8;
}

/* Horizontal Timeline */
.news-timeline-horizontal,
.publications-timeline-horizontal {
    position: sticky;
    top: 0;
    z-index: 100;
    background-color: var(--color-bg);
    border-bottom: 1px solid var(--color-border);
    padding: 0;
    margin-bottom: var(--spacing-sm);
    box-shadow: var(--shadow-sm);
    width: 100%;
    max-width: var(--container-max-width);
    margin: 0 auto var(--spacing-sm) auto;
}

.timeline-container {
    background-color: transparent;
    border-radius: 0;
    padding: 0;
    box-shadow: none;
    border: none;
}

.timeline-title {
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    color: var(--color-text);
    margin-bottom: var(--spacing-md);
    text-align: center;
}

.timeline-chart {
    display: flex;
    flex-direction: row;
    gap: 2px;
    align-items: flex-end;
    justify-content: space-between;
    padding: 0 var(--spacing-lg);
    position: relative;
    width: 100%;
}

.timeline-year-label {
    position: absolute;
    bottom: -25px;
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-medium);
    color: var(--color-text-muted);
    transform: translateX(-50%);
    white-space: nowrap;
    max-width: 50px;
    overflow: visible;
    text-overflow: clip;
}

/* Responsive: Hide every other year label on narrow screens to prevent overlap */
@media (max-width: 768px) {
    .timeline-year-label:nth-child(even) {
        display: none;
    }
}

@media (max-width: 480px) {
    .timeline-year-label:nth-child(3n+2) {
        display: none;
    }
    .timeline-year-label:nth-child(3n+3) {
        display: none;
    }
}

.timeline-bar {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-xs);
    cursor: pointer;
    transition: all var(--transition-normal);
    padding: var(--spacing-xs);
    border-radius: var(--radius-sm);
    position: relative;
    flex: 1;
    min-width: 8px;
    max-width: 60px;
}

.timeline-bar:hover {
    background-color: var(--color-bg-light);
    transform: scale(1.1);
    z-index: 5;
}

.timeline-bar--active {
    background-color: var(--color-primary);
    color: white;
}

.timeline-bar__date {
    position: absolute;
    left: 50%;
    top: -30px;
    transform: translateX(-50%);
    background-color: var(--color-bg-dark);
    color: white;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-sm);
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-medium);
    white-space: nowrap;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
    z-index: 10;
    box-shadow: var(--shadow-md);
}

.timeline-bar__date::after {
    content: '';
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%);
    border: 4px solid transparent;
    border-top-color: var(--color-bg-dark);
}

.timeline-bar:hover .timeline-bar__date {
    opacity: 1;
    visibility: visible;
    top: -35px;
}

.timeline-bar__visual {
    width: 100%;
    min-height: 20px;
    max-height: 60px;
    background-color: var(--color-border);
    border-radius: var(--radius-sm);
    position: relative;
    overflow: hidden;
    transition: all var(--transition-normal);
}

.timeline-bar__fill {
    width: 100%;
    background: linear-gradient(180deg, var(--color-primary) 0%, var(--color-secondary) 100%);
    border-radius: var(--radius-sm);
    transition: all var(--transition-normal);
    transform-origin: bottom;
}

.timeline-bar:hover .timeline-bar__visual {
    min-height: 25px;
    box-shadow: var(--shadow-lg);
    transform: scaleY(1.1);
}

.timeline-bar:hover .timeline-bar__fill {
    transform: scaleY(1.2);
    box-shadow: var(--shadow-md);
}

.timeline-bar--active .timeline-bar__fill {
    background: linear-gradient(180deg, var(--color-secondary) 0%, var(--color-primary) 100%);
    box-shadow: var(--shadow-lg);
}



.news-content .container {
    max-width: var(--container-max-width);
    padding: 0 var(--spacing-lg);
    width: 100%;
    margin: 0 auto;
}

.news-content {
    width: 100%;
}

.news-content .container {
    max-width: none;
    padding: 0 var(--spacing-lg);
    width: 100%;
    margin: 0;
    display: flex;
    flex-direction: column;
}

.news-sidebar {
    position: sticky;
    top: var(--spacing-xl);
    height: fit-content;
    width: 300px;
    flex-shrink: 0;
}

.twitter-timeline-container {
    background-color: var(--color-bg);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-md);
    border: 1px solid var(--color-border-light);
}

.news-cards {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
    flex: 1;
    min-width: 0;
}

.news-card {
    background-color: var(--color-bg);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-normal);
    border: 1px solid var(--color-border-light);
    padding: var(--spacing-lg);
    width: 100%;
    box-sizing: border-box;
}

.news-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
    border-color: var(--color-primary);
}

.news-card__header {
    margin-bottom: var(--spacing-md);
}

.news-card__date {
    display: block;
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
    font-weight: var(--font-weight-medium);
    margin-bottom: var(--spacing-xs);
}

.news-card__title {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-semibold);
    color: var(--color-text);
    margin: 0;
    line-height: var(--line-height-tight);
}

.news-card__content {
    color: var(--color-text);
    line-height: var(--line-height-relaxed);
}

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

.news-card__content p:last-child {
    margin-bottom: 0;
}

.news-card__content a {
    color: var(--color-primary);
    text-decoration: none;
    font-weight: var(--font-weight-medium);
    transition: color var(--transition-fast);
}

.news-card__content a:hover {
    color: var(--color-primary-dark);
    text-decoration: underline;
}

.news-card__image {
    max-width: 300px;
    height: auto;
    margin: var(--spacing-md) 0;
    border-radius: var(--radius-md);
    display: block;
}

.news-card__video {
    margin: var(--spacing-md) 0;
    border-radius: var(--radius-md);
    overflow: hidden;
}

.news-card__video iframe {
    width: 100%;
    max-width: 560px;
    height: 315px;
    border: none;
}

/* Responsive adjustments for publications */
@media (max-width: 1200px) {
    .publications-grid {
        grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); /* Dynamic sizing */
        gap: var(--spacing-lg);
    }
    
    .news-grid {
        flex-direction: column;
        gap: var(--spacing-xl);
        width: 100%;
    }
    
    .news-timeline-horizontal {
        position: sticky;
        top: 0;
    }
    
    .timeline-chart {
        gap: 1px;
        padding: 0 var(--spacing-md);
    }
    
    .timeline-bar {
        min-width: 6px;
        max-width: 40px;
    }
    
    .timeline-year-label {
        font-size: 0.7rem;
        bottom: -20px;
    }
    
    .news-sidebar {
        position: static;
        order: -1;
        width: 100%;
    }
    
    .news-content .container {
        padding: 0 var(--spacing-lg);
        max-width: none;
        margin: 0;
    }
}

@media (max-width: 992px) {
    .publications-grid {
        grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); /* Dynamic sizing */
        gap: var(--spacing-lg);
    }
}

@media (max-width: 768px) {
    .publications-grid,
    .links-grid {
        grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); /* Dynamic sizing */
        gap: var(--spacing-md);
    }
    
    .publication-card__content {
        padding: var(--spacing-sm);
    }
    
    .publication-card__title {
        font-size: 0.8rem;
    }
    
    .publication-card__journal {
        font-size: 0.6rem;
    }
    
    .publication-card__description {
        font-size: var(--font-size-xs);
    }
    
    .publication-card__links {
        flex-wrap: nowrap; /* Keep buttons on single line */
        gap: var(--spacing-xs);
    }
    
    .publication-card__link {
        font-size: 0.7rem;
        padding: 2px var(--spacing-xs);
    }
    
    .link-card__content {
        padding: var(--spacing-sm);
    }
    
    .link-card__title {
        font-size: 0.8rem;
    }
    
    .link-card__description {
        font-size: var(--font-size-xs);
    }
    
    .news-grid {
        width: 100%;
        gap: var(--spacing-lg);
    }
    
    .news-content .container {
        padding: 0 var(--spacing-lg);
        max-width: none;
        margin: 0;
    }
    
    .news-card {
        padding: var(--spacing-md);
        width: 100%;
    }
    
    .news-card__title {
        font-size: var(--font-size-base);
    }
    
    .news-card__content {
        font-size: var(--font-size-sm);
    }
    
    .news-card__image {
        max-width: 100%;
    }
    
    .news-card__video iframe {
        height: 200px;
        width: 100%;
    }
}

@media (max-width: 480px) {
    .publications-grid,
    .links-grid {
        grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); /* Dynamic sizing */
        gap: var(--spacing-md);
    }
    
    .publication-card__image {
        height: auto; /* Allow image to dictate height */
    }
    
    .link-card__content {
        padding: var(--spacing-xs);
    }
    
    .link-card__title {
        font-size: 0.7rem;
    }
    
    .link-card__description {
        font-size: 0.6rem;
    }
    
    .location-card__map {
        height: 250px;
    }
    
    .location-card__map-actions {
        flex-direction: column;
    }
    
    .location-card__map-link,
    .location-card__directions-link {
        flex: none;
        width: 100%;
    }
    
    .news-grid {
        width: 100%;
        gap: var(--spacing-md);
    }
    
    .news-content .container {
        padding: 0 var(--spacing-lg);
        max-width: none;
        margin: 0;
    }
    
    .news-card {
        padding: var(--spacing-sm);
        width: 100%;
    }
    
    .news-card__title {
        font-size: var(--font-size-sm);
    }
    
    .news-card__content {
        font-size: var(--font-size-xs);
    }
    
    .news-card__video iframe {
        height: 180px;
        width: 100%;
    }
    
    .timeline-chart {
        gap: 1px;
        padding: 0 var(--spacing-sm);
    }
    
    .timeline-bar {
        min-width: 4px;
        max-width: 30px;
    }
}

/* Email Page CSS */
.email-content {
    padding: var(--spacing-3xl) 0;
}

/* Page Header Actions */
.page-header__actions {
    margin-top: var(--spacing-md);
    display: flex;
    gap: var(--spacing-sm);
    justify-content: center;
}

/* Button Styles */
.btn {
    display: inline-flex;
    align-items: center;
    padding: 12px 24px;
    border: none;
    border-radius: 6px;
    font-size: 14px;
    font-weight: 500;
    text-decoration: none;
    cursor: pointer;
    transition: all 0.2s ease;
    text-align: center;
    justify-content: center;
    min-height: 44px;
    /* Fallback colors in case CSS variables aren't loaded */
    background-color: #2563eb;
    color: white;
}

.btn--primary {
    background-color: #2563eb;
    color: white;
}

.btn--primary:hover {
    background-color: #1d4ed8;
    transform: translateY(-1px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.15);
    color: white;
}

.btn--primary:active {
    transform: translateY(0);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    color: white;
}

/* Ensure button text is always visible */
.btn {
    color: white !important;
    text-decoration: none !important;
}

.btn:hover {
    color: white !important;
    text-decoration: none !important;
}

.btn:visited {
    color: white !important;
    text-decoration: none !important;
}

/* Force white text on primary buttons */
.btn--primary,
.btn--primary:hover,
.btn--primary:visited,
.btn--primary:active {
    color: white !important;
    text-decoration: none !important;
}

.email-card {
    background: white;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    padding: var(--spacing-3xl);
    margin-top: var(--spacing-lg);
    text-align: center;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
    border: 1px solid var(--color-border);
}

.email-card__content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-xl);
}

.email-card__icon {
    color: var(--color-primary);
    margin-bottom: var(--spacing-md);
}

.email-card__title {
    font-size: var(--font-size-2xl);
    font-weight: var(--font-weight-bold);
    color: var(--color-text);
    margin: 0;
}

.email-card__description {
    font-size: var(--font-size-lg);
    color: var(--color-text-muted);
    line-height: 1.6;
    margin: 0;
    max-width: 500px;
}

.email-card__actions {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-md);
}

.email-card__button {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-lg) var(--spacing-2xl);
    background-color: var(--color-primary);
    color: white;
    text-decoration: none;
    border-radius: var(--radius-lg);
    font-weight: var(--font-weight-semibold);
    font-size: var(--font-size-lg);
    transition: all var(--transition-fast);
    box-shadow: var(--shadow-md);
    border: none;
    cursor: pointer;
}

.email-card__button:hover {
    background-color: var(--color-primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.email-card__button:active {
    transform: translateY(0);
    box-shadow: var(--shadow-md);
}

.email-card__note {
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
    margin: 0;
    font-style: italic;
}

@media (max-width: 768px) {
    .email-card {
        padding: var(--spacing-2xl);
        margin: var(--spacing-lg) var(--spacing-md) 0;
    }
    
    .email-card__title {
        font-size: var(--font-size-xl);
    }
    
    .email-card__description {
        font-size: var(--font-size-base);
    }
    
    .email-card__button {
        padding: var(--spacing-md) var(--spacing-xl);
        font-size: var(--font-size-base);
    }
}

@media (max-width: 480px) {
    .email-card {
        padding: var(--spacing-xl);
        margin: var(--spacing-md) var(--spacing-sm) 0;
    }
    
    .email-card__title {
        font-size: var(--font-size-lg);
    }
    
    .email-card__description {
        font-size: var(--font-size-sm);
    }
    
    .email-card__button {
        padding: var(--spacing-sm) var(--spacing-lg);
        font-size: var(--font-size-sm);
        width: 100%;
        justify-content: center;
    }
}