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

:root {
    /* Modern Color Palette */
    --primary-color: #2563eb;
    --primary-dark: #1e40af;
    --primary-light: #3b82f6;
    --secondary-color: #f59e0b;
    --accent-color: #06b6d4;
    --text-dark: #0f172a;
    --text-medium: #475569;
    --text-light: #64748b;
    --bg-light: #f8fafc;
    --bg-white: #ffffff;
    --bg-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --border-color: #e2e8f0;
    --success-color: #10b981;
    --error-color: #ef4444;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 3rem;
    --spacing-xl: 4rem;
    --spacing-2xl: 6rem;
    
    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-heading: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    
    /* 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);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1);
    
    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    line-height: 1.7;
    color: var(--text-dark);
    background-color: var(--bg-white);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* Header */
.header {
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-color);
    padding: var(--spacing-sm) 0;
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: var(--shadow-sm);
    transition: all 0.3s ease;
}

/* Add scroll offset for all sections so content doesn't hide under sticky header */
section {
    scroll-margin-top: 130px;
}

.header-wrapper {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 0;
    flex-wrap: wrap;
}

.header-title {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-dark);
    opacity: 0;
    transition: opacity 0.3s ease, color 0.3s ease;
    text-align: center;
    width: 100%;
    order: 3;
    padding-top: 0.25rem;
    padding-bottom: 0.25rem;
    border-top: 1px solid var(--border-color);
    margin-top: 0;
    text-decoration: none;
    cursor: pointer;
}

.header-title:hover {
    color: var(--primary-color);
}

.header.scrolled .header-title {
    opacity: 1;
}

.logo-group {
    order: 1;
}

.nav-menu {
    order: 2;
}

.logo-group {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
}

.logo-item a {
    display: block;
    transition: opacity 0.3s ease;
}

.logo-item a:hover {
    opacity: 0.7;
}

.nav-menu {
    display: flex;
    gap: var(--spacing-md);
}

.nav-menu a {
    color: var(--text-medium);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.95rem;
    transition: all 0.2s ease;
    white-space: nowrap;
    position: relative;
    padding-bottom: 0.25rem;
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-color);
    transition: width 0.3s ease;
}

.nav-menu a:hover {
    color: var(--primary-color);
}

.nav-menu a:hover::after {
    width: 100%;
}

/* Mobile Menu Toggle */
.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    z-index: 1001;
}

.mobile-menu-toggle span {
    display: block;
    width: 25px;
    height: 3px;
    background-color: var(--text-dark);
    border-radius: 2px;
    transition: all 0.3s ease;
}

.mobile-menu-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(8px, 8px);
}

.mobile-menu-toggle.active span:nth-child(2) {
    opacity: 0;
}

.mobile-menu-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -7px);
}

.logo-item {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--primary-color);
    display: flex;
    align-items: center;
    justify-content: center;
}

.org-logo {
    height: 50px;
    max-width: 150px;
    object-fit: contain;
}

.utrecht-logo {
    height: 50px;
    max-width: 150px;
}

.logo-divider {
    color: var(--text-light);
    font-size: 1.2rem;
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: var(--spacing-2xl) 0;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero-canvas {
    z-index: 1 !important;
}

.hero > .container {
    position: relative;
    z-index: 2;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.05'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
    opacity: 0.4;
}

.hero-title {
    font-family: var(--font-heading);
    font-size: 3.5rem;
    font-weight: 800;
    margin-bottom: var(--spacing-md);
    line-height: 1.1;
    letter-spacing: -0.02em;
    position: relative;
    z-index: 1;
}

.hero-subtitle {
    font-size: 1.35rem;
    margin-bottom: var(--spacing-lg);
    opacity: 0.95;
    font-weight: 400;
    line-height: 1.6;
    position: relative;
    z-index: 1;
}

.hero-details {
    display: flex;
    justify-content: center;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
    flex-wrap: wrap;
}

.detail-item {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    font-size: 1rem;
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-xl);
    border: 1px solid rgba(255, 255, 255, 0.2);
    position: relative;
    z-index: 1;
    transition: all 0.3s ease;
    min-width: 180px;
}

.detail-item:hover {
    transform: translateY(-4px);
    background: rgba(255, 255, 255, 0.25);
    border-color: rgba(255, 255, 255, 0.4);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15);
}

.limited-spots-badge {
    display: inline-flex;
    flex-direction: column;
    align-items: center;
    background: linear-gradient(135deg, #ff6b6b 0%, #ee5a6f 100%);
    padding: 1rem 1.5rem;
    border-radius: 12px;
    margin-bottom: var(--spacing-lg);
    position: relative;
    box-shadow: 0 4px 15px rgba(238, 90, 111, 0.4), 
                inset 0 -2px 0 rgba(0, 0, 0, 0.1);
    transform: rotate(-2deg);
    transition: transform 0.3s ease;
}

.limited-spots-badge:hover {
    transform: rotate(0deg) scale(1.05);
}

.badge-ribbon {
    background: rgba(255, 255, 255, 0.2);
    color: white;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    margin-bottom: 0.5rem;
}

.badge-number {
    font-size: 2.5rem;
    font-weight: 900;
    color: white;
    line-height: 1;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.2);
}

.badge-text {
    color: white;
    font-size: 0.85rem;
    font-weight: 600;
    margin-top: 0.25rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.icon {
    width: 24px;
    height: 24px;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 1rem 2.5rem;
    font-size: 1rem;
    font-weight: 600;
    text-decoration: none;
    border-radius: var(--radius-xl);
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
    letter-spacing: 0.01em;
}

.btn-primary {
    background: linear-gradient(135deg, var(--secondary-color) 0%, #ea580c 100%);
    color: white;
    box-shadow: var(--shadow-md);
    position: relative;
    z-index: 1;
}

/* Hero button centering - must come after .btn */
.hero .btn {
    display: block !important;
    margin-left: auto !important;
    margin-right: auto !important;
    width: fit-content !important;
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-xl);
}

/* Pizza Banner */
.pizza-banner {
    background: linear-gradient(135deg, #fbbf24 0%, #f59e0b 100%);
    padding: 1rem 0;
    box-shadow: 0 4px 12px rgba(245, 158, 11, 0.3);
    position: relative;
    overflow: hidden;
    border-bottom: 3px solid #f97316;
}

.pizza-banner::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -5%;
    width: 150px;
    height: 150px;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.15) 0%, transparent 70%);
    border-radius: 50%;
}

.pizza-banner::after {
    content: '';
    position: absolute;
    bottom: -50%;
    left: -5%;
    width: 150px;
    height: 150px;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.15) 0%, transparent 70%);
    border-radius: 50%;
}

.pizza-content {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    position: relative;
    z-index: 1;
}

.pizza-emoji {
    font-size: 2rem;
    animation: bounce 2s infinite;
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.1));
}

@keyframes bounce {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-10px);
    }
}

.pizza-text {
    color: white;
    font-size: 1.125rem;
    margin: 0;
    text-align: center;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    line-height: 1.5;
}

.pizza-text strong {
    font-weight: 700;
    font-size: 1.25rem;
}

.btn-primary:active {
    transform: translateY(-1px);
}

/* Sections */
.section {
    padding: var(--spacing-xl) 0;
    scroll-margin-top: 160px; /* Offset for sticky header */
}

.section-title {
    font-family: var(--font-heading);
    font-size: 2.75rem;
    font-weight: 800;
    text-align: center;
    margin-bottom: var(--spacing-lg);
    color: var(--text-dark);
    letter-spacing: -0.02em;
    line-height: 1.2;
}

/* About Section */
.about-section {
    background-color: var(--bg-white);
}

.about-content {
    max-width: 800px;
    margin: 0 auto;
    font-size: 1.125rem;
    line-height: 1.9;
    color: var(--text-medium);
}

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

/* Who Should Attend Section */
.who-section {
    background: linear-gradient(135deg, #f8f9ff 0%, #fff5f7 100%);
    position: relative;
    overflow: hidden;
}

.who-section::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -10%;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(102, 126, 234, 0.08) 0%, transparent 70%);
    border-radius: 50%;
    pointer-events: none;
}

.who-content {
    max-width: 800px;
    margin: 0 auto;
    font-size: 1.125rem;
    line-height: 1.9;
    color: var(--text-medium);
    position: relative;
    z-index: 1;
}

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

.who-content strong {
    color: var(--primary-color);
    font-weight: 600;
}

.who-content .highlight-text {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: 600;
    font-size: 1.2rem;
    margin-top: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
    text-align: center;
}

/* Objectives Section */
.objectives-section {
    background-color: var(--bg-light);
}

.objectives-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.objective-card {
    background-color: var(--bg-white);
    padding: var(--spacing-lg);
    border-radius: var(--radius-2xl);
    text-align: center;
    box-shadow: var(--shadow-md);
    transition: all 0.3s ease;
    border: 1px solid var(--border-color);
}

.objective-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
    border-color: var(--primary-light);
}

.objective-icon {
    width: 50px;
    height: 50px;
    margin: 0 auto var(--spacing-md);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
}

.objective-icon svg {
    width: 24px;
    height: 24px;
    color: white;
    stroke-width: 2;
}

.icon-yellow {
    background: linear-gradient(135deg, #fbbf24, #f59e0b) !important;
}

.icon-blue {
    background: linear-gradient(135deg, #3b82f6, #2563eb) !important;
}

.icon-green {
    background: linear-gradient(135deg, #10b981, #059669) !important;
}

.icon-red {
    background: linear-gradient(135deg, #ef4444, #dc2626) !important;
}

.objective-card:hover .objective-icon {
    transform: translateY(-4px);
}

.objective-card:has(.icon-yellow):hover {
    border-color: #fbbf24;
}

.objective-card:has(.icon-blue):hover {
    border-color: #3b82f6;
}

.objective-card:has(.icon-green):hover {
    border-color: #10b981;
}

.objective-card:has(.icon-red):hover {
    border-color: #ef4444;
}

.objective-card:hover .icon-yellow {
    box-shadow: 0 8px 20px rgba(251, 191, 36, 0.4);
}

.objective-card:hover .icon-blue {
    box-shadow: 0 8px 20px rgba(59, 130, 246, 0.4);
}

.objective-card:hover .icon-green {
    box-shadow: 0 8px 20px rgba(16, 185, 129, 0.4);
}

.objective-card:hover .icon-red {
    box-shadow: 0 8px 20px rgba(239, 68, 68, 0.4);
}

.objective-card h3 {
    font-size: 1.35rem;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
    color: var(--text-dark);
    letter-spacing: -0.01em;
}

.objective-card p {
    color: var(--text-medium);
    font-size: 1rem;
    line-height: 1.7;
}

/* Program Section */
.program-section {
    background-color: var(--bg-white);
}

.program-timeline {
    max-width: 800px;
    margin: 0 auto;
}

.program-item {
    display: grid;
    grid-template-columns: 150px 1fr;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--bg-white);
    border-radius: var(--radius-lg);
    border-left: 4px solid var(--primary-color);
    margin-bottom: var(--spacing-sm);
    position: relative;
    transition: all 0.3s ease;
    box-shadow: var(--shadow-sm);
}

.program-item:hover {
    transform: translateX(8px);
    box-shadow: var(--shadow-md);
}

.program-item::before {
    content: '';
    position: absolute;
    left: -10px;
    top: var(--spacing-sm);
    width: 16px;
    height: 16px;
    background-color: var(--primary-color);
    border-radius: 50%;
    border: 3px solid var(--bg-white);
    box-shadow: 0 0 0 2px var(--primary-color);
}

.program-time {
    font-weight: 600;
    color: var(--primary-color);
    font-size: 1rem;
}

.program-details h3 {
    font-size: 1.15rem;
    font-weight: 700;
    margin-bottom: 0.25rem;
    color: var(--text-dark);
    letter-spacing: -0.01em;
}

.program-details p {
    color: var(--text-medium);
    line-height: 1.5;
    font-size: 0.95rem;
}

/* Registration Section */
.register-section {
    background-color: var(--bg-light);
}

.register-intro {
    text-align: center;
    max-width: 700px;
    margin: 0 auto var(--spacing-lg);
    font-size: 1.1rem;
    color: var(--text-light);
}

.registration-notice {
    background: linear-gradient(135deg, #fff3cd 0%, #ffeaa7 100%);
    color: #856404;
    padding: 1rem 1.5rem;
    border-radius: var(--radius-lg);
    text-align: center;
    margin: 0 auto var(--spacing-lg);
    max-width: 600px;
    border: 2px solid #ffc107;
    font-size: 1.05rem;
    box-shadow: 0 2px 8px rgba(255, 193, 7, 0.2);
}

.registration-form {
    max-width: 600px;
    margin: 0 auto;
    background-color: var(--bg-white);
    padding: var(--spacing-xl);
    border-radius: var(--radius-2xl);
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border-color);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-sm);
}

.form-group {
    margin-bottom: var(--spacing-sm);
}

.form-group label {
    display: block;
    margin-bottom: 0.375rem;
    font-weight: 600;
    color: var(--text-dark);
    font-size: 0.95rem;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.625rem 0.875rem;
    border: 2px solid var(--border-color);
    border-radius: var(--radius-lg);
    font-size: 0.95rem;
    font-family: var(--font-primary);
    transition: all 0.2s ease;
    background-color: var(--bg-white);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.form-group textarea {
    resize: vertical;
}

.checkbox-group label {
    display: flex;
    align-items: start;
    gap: var(--spacing-xs);
    font-weight: 400;
    cursor: pointer;
}

.checkbox-group input[type="checkbox"] {
    width: auto;
    margin-top: 4px;
    cursor: pointer;
}

.form-actions {
    margin-top: var(--spacing-lg);
    text-align: center;
}

.form-actions .btn {
    width: 100%;
    max-width: 300px;
}

.form-message {
    margin-top: var(--spacing-md);
    padding: var(--spacing-sm);
    border-radius: 6px;
    text-align: center;
    display: none;
}

.form-message.success {
    background-color: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
    display: block;
}

.form-message.error {
    background-color: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
    display: block;
}

/* Footer */
.footer {
    background-color: var(--text-dark);
    color: white;
    padding: var(--spacing-lg) 0 var(--spacing-md);
}

.footer-content {
    display: flex;
    justify-content: center;
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-md);
    flex-wrap: wrap;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.footer-section {
    text-align: left;
}

.footer-section h4 {
    margin-bottom: var(--spacing-sm);
    font-size: 1.2rem;
    color: var(--accent-color);
}

.footer-section ul {
    list-style: none;
}

.footer-section li {
    margin-bottom: var(--spacing-xs);
}

.footer-section a {
    color: white;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-section a:hover {
    color: var(--accent-color);
}

.social-links {
    display: flex;
    gap: var(--spacing-sm);
}

.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-md);
    border-top: 1px solid rgba(255,255,255,0.1);
    color: rgba(255,255,255,0.7);
}

.footer-credit {
    font-size: 0.7rem;
    margin-top: 0.5rem;
    opacity: 0.6;
    font-weight: 300;
}

/* Responsive Design */
@media (max-width: 1024px) {
    .objectives-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .header {
        padding: 0.25rem 0;
    }
    
    .header-wrapper {
        flex-direction: row;
        justify-content: space-between;
        align-items: center;
        gap: 0.25rem;
        flex-wrap: wrap;
    }
    
    .logo-group {
        gap: 0.5rem;
        order: 1;
        width: 100%;
        margin-bottom: 0;
        padding-bottom: 0.25rem;
    }
    
    .mobile-menu-toggle {
        display: flex;
        order: 2;
        padding: 4px;
        width: 33px;
        flex-shrink: 0;
    }
    
    .header-title {
        font-size: 1.1rem;
        order: 3;
        color: var(--text-dark);
        opacity: 1;
        border-top: none;
        margin: 0;
        padding: 0;
        text-align: center;
        flex: 1;
    }
    
    .header-title::after {
        content: '';
        display: block;
        order: 4;
        width: 33px;
        flex-shrink: 0;
    }
    
    .header-wrapper::after {
        content: '';
        order: 4;
        width: 33px;
        flex-shrink: 0;
    }
    
    section {
        scroll-margin-top: 140px;
    }
    
    .nav-menu {
        order: 4;
        width: 100%;
        flex-direction: column;
        gap: 0.5rem;
        background: transparent;
        overflow: visible;
        max-height: 0;
        transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1), opacity 0.3s ease, padding 0.3s ease;
        margin-top: 0.75rem;
        visibility: hidden;
        opacity: 0;
        padding: 0;
    }
    
    .nav-menu.active {
        max-height: 500px;
        visibility: visible;
        opacity: 1;
        padding: 0.5rem 0 1rem 0;
    }
    
    .nav-menu a {
        font-size: 0.95rem;
        font-weight: 600;
        padding: 0.875rem 1.25rem;
        text-align: left;
        display: flex;
        align-items: center;
        justify-content: space-between;
        width: 100%;
        color: var(--text-dark);
        transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
        position: relative;
        background: white;
        border-radius: 12px;
        box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
        border: 1px solid rgba(0, 0, 0, 0.06);
    }
    
    .nav-menu a:hover,
    .nav-menu a:active {
        background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
        color: white;
        transform: translateX(4px);
        box-shadow: 0 4px 16px rgba(102, 126, 234, 0.3);
        border-color: transparent;
    }
    
    .nav-menu a::after {
        content: '›';
        font-size: 1.5rem;
        font-weight: 300;
        opacity: 0.3;
        transition: all 0.25s ease;
    }
    
    .nav-menu a:hover::after,
    .nav-menu a:active::after {
        opacity: 1;
        transform: translateX(4px);
    }
    
    .org-logo {
        height: 35px;
        max-width: 100px;
    }
    
    .utrecht-logo {
        height: 35px;
        max-width: 100px;
    }
    
    .logo-divider {
        font-size: 1rem;
    }
    
    .pizza-banner {
        padding: 0.875rem 0;
    }
    
    .pizza-emoji {
        font-size: 1.75rem;
    }
    
    .pizza-text {
        font-size: 0.95rem;
    }
    
    .pizza-text strong {
        font-size: 1.05rem;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-subtitle {
        font-size: 1.2rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .program-item {
        grid-template-columns: 100px 1fr;
        gap: var(--spacing-sm);
    }
    
    .hero-details {
        flex-direction: column;
        gap: var(--spacing-sm);
    }
    
    .objectives-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-sm);
    }
    
    .objective-card {
        padding: var(--spacing-md);
    }
    
    .objective-icon {
        width: 40px;
        height: 40px;
        margin-bottom: var(--spacing-sm);
    }
    
    .objective-icon svg {
        width: 20px;
        height: 20px;
    }
    
    .objective-card h3 {
        font-size: 1rem;
    }
    
    .objective-card p {
        font-size: 0.9rem;
    }
    
    /* Footer layout for mobile */
    .footer-content {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-lg);
    }
    
    .footer-section {
        width: 100%;
        text-align: left;
    }
    
    /* Adjust scroll offset for mobile - ensure section titles are visible */
    .section {
        scroll-margin-top: 460px !important;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 var(--spacing-sm);
    }
    
    .pizza-banner {
        padding: 0.75rem 0;
    }
    
    .pizza-content {
        gap: 0.5rem;
        flex-wrap: wrap;
        padding: 0 var(--spacing-xs);
    }
    
    .pizza-emoji {
        font-size: 1.5rem;
    }
    
    .pizza-text {
        font-size: 0.875rem;
        flex: 1;
        min-width: 200px;
    }
    
    .pizza-text strong {
        font-size: 1rem;
        display: block;
    }
    
    .hero {
        padding: var(--spacing-md) 0;
    }
    
    .section {
        padding: var(--spacing-md) 0;
    }
    
    .registration-form {
        padding: var(--spacing-md);
    }
}