/* Responsive Design */

/* Large screens and up (1280px+) */
@media (min-width: 1280px) {
    .container {
        padding: 0 var(--spacing-xl);
    }
    
    h1 {
        font-size: 3rem;
    }
}

/* Medium screens and down (1023px and below) */
@media (max-width: 1023px) {
    .container {
        padding: 0 var(--spacing-lg);
    }
    
    .nav-links {
        gap: var(--spacing-xl);
    }
}

/* Tablet screens and down (768px and below) */
@media (max-width: 768px) {
    /* Navigation adjustments */
    nav {
        flex-direction: column;
        gap: var(--spacing-lg);
        text-align: center;
    }
    
    .nav-links {
        gap: var(--spacing-lg);
    }
    
    /* Typography adjustments */
    h1 {
        font-size: 1.75rem;
    }
    
    h2 {
        font-size: 1.25rem;
    }
    
    .logo {
        font-size: 1.25rem;
    }
    
    /* Spacing adjustments */
    main {
        padding: var(--spacing-xl) 0;
    }
    
    header {
        padding: var(--spacing-md) 0;
    }
    
    /* Component adjustments */
    .paper-links {
        flex-direction: column;
        gap: var(--spacing-sm);
    }
    
    .paper-links a {
        text-align: center;
        display: block;
    }
    
    .media-links {
        flex-direction: column;
        gap: var(--spacing-sm);
    }
    
    .media-links a {
        display: block;
    }
    
    /* Profile picture adjustments */
    .profile-container {
        flex-direction: column;
        align-items: center;
        text-align: center;
        gap: var(--spacing-md);
    }

    /* Contact info adjustments */
    .contact-info {
        padding: var(--spacing-md);
    }
}

/* Mobile screens and down (640px and below) */
@media (max-width: 640px) {
    /* Container adjustments */
    .container {
        padding: 0 var(--spacing-md);
    }
    
    /* Navigation for mobile */
    .nav-links {
        flex-direction: column;
        gap: var(--spacing-md);
        width: 100%;
    }
    
    .nav-links li {
        width: 100%;
    }
    
    .nav-links li a {
        display: block;
        padding: var(--spacing-sm) 0;
    }
    
    /* Typography for mobile */
    h1 {
        font-size: 1.5rem;
        margin-bottom: var(--spacing-md);
    }
    
    h2 {
        font-size: 1.125rem;
        margin-bottom: var(--spacing-sm);
    }
    
    /* Spacing for mobile */
    main {
        padding: var(--spacing-lg) 0;
    }
    
    .paper-item {
        margin-bottom: var(--spacing-xl);
        padding-bottom: var(--spacing-md);
    }
    
    /* Component adjustments for mobile */
    .contact-info {
        padding: var(--spacing-sm);
        margin: var(--spacing-md) 0;
    }
    
    .abstract {
        padding: var(--spacing-sm);
        font-size: var(--font-size-small);
    }
    
    .awards {
        padding: var(--spacing-sm);
    }
    
    .funding-info {
        padding: var(--spacing-sm);
    }
    
    /* Button adjustments */
    .btn {
        width: 100%;
        display: block;
        margin-bottom: var(--spacing-sm);
    }
}/* Mobile screens and down (640px and below) */
@media (max-width: 640px) {
    /* Container adjustments */
    .container {
        padding: 0 var(--spacing-md);
    }
    
    /* Navigation for mobile */
    .nav-links {
        flex-direction: column;
        gap: var(--spacing-md);
        width: 100%;
    }
    
    .nav-links li {
        width: 100%;
    }
    
    .nav-links li a {
        display: block;
        padding: var(--spacing-sm) 0;
    }
    
    /* Typography for mobile */
    h1 {
        font-size: 1.5rem;
        margin-bottom: var(--spacing-md);
    }
    
    h2 {
        font-size: 1.125rem;
        margin-bottom: var(--spacing-sm);
    }
    
    /* Spacing for mobile */
    main {
        padding: var(--spacing-lg) 0;
    }
    
    .paper-item {
        margin-bottom: var(--spacing-xl);
        padding-bottom: var(--spacing-md);
    }
    
    /* Component adjustments for mobile */
    .contact-info {
        padding: var(--spacing-sm);
        margin: var(--spacing-md) 0;
    }
    
    .abstract {
        padding: var(--spacing-sm);
        font-size: var(--font-size-small);
    }
    
    .awards {
        padding: var(--spacing-sm);
    }
    
    .funding-info {
        padding: var(--spacing-sm);
    }
    
    /* CV page mobile */
    .cv-viewer {
        height: 60vh;
        min-height: 400px;
    }
    
    /* Teaching page mobile */
    .teaching-intro,
    .teaching-outro {
        padding: var(--spacing-md);
    }
    
    .course-card {
        padding: var(--spacing-md);
    }
    
    .teaching-stats {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }
    
    /* Button adjustments */
    .btn {
        width: 100%;
        display: block;
        margin-bottom: var(--spacing-sm);
    }
    
    /* CV page adjustments */
    .cv-viewer {
        height: 70vh;
        min-height: 500px;
    }
    
    .cv-download {
        flex-direction: column;
        width: 100%;
    }
    
    /* Teaching page adjustments */
    .courses-grid {
        grid-template-columns: 1fr;
    }
    
    .university-header {
        flex-direction: column;
        text-align: center;
        gap: var(--spacing-sm);
    }
    
    .teaching-stats {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* Small mobile screens (480px and below) */
@media (max-width: 480px) {
    /* Further reduce spacing */
    .container {
        padding: 0 var(--spacing-sm);
    }
    
    h1 {
        font-size: 1.25rem;
    }
    
    .logo {
        font-size: 1.125rem;
    }
    
    /* Reduce padding on components */
    .contact-info,
    .abstract,
    .awards,
    .funding-info {
        padding: var(--spacing-xs) var(--spacing-sm);
    }
    
    /* Stack paper links vertically with smaller buttons */
    .paper-links a {
        padding: var(--spacing-xs) var(--spacing-sm);
        font-size: 0.75rem;
    }
}

/* Print styles */
@media print {
    header {
        border-bottom: 2px solid #000;
    }
    
    footer {
        border-top: 1px solid #000;
        background-color: transparent;
        color: #000;
    }
    
    .nav-links {
        display: none;
    }
    
    a {
        color: #000;
        text-decoration: underline;
    }
    
    .paper-links a {
        background-color: transparent;
        color: #000;
        border: 1px solid #000;
    }
    
    .awards,
    .funding-info {
        border: 1px solid #000;
        background-color: transparent;
    }
    
    .abstract {
        border: 1px solid #000;
        background-color: transparent;
    }
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    :root {
        --color-primary: #0066cc;
        --color-primary-dark: #004499;
        --color-text: #000;
        --color-text-light: #333;
        --color-border: #ccc;
    }
}

/* Reduced motion support */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}