/* Updated font variables for better readability */
:root {
    --groningen-red: #DA121A;
    --groningen-blue: #0F47AF;
    --groningen-green: #078930;
    --groningen-white: #FFFFFF;
    --dark-gray: #333333;
    --light-gray: #f8f9fa;
    --medium-gray: #666666;
    --heading-font: 'Segoe UI', 'Roboto', 'Helvetica Neue', Arial, sans-serif;
    --body-font: 'Segoe UI', 'Roboto', 'Helvetica Neue', Arial, sans-serif;
}

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

body {
    font-family: var(--body-font);
    line-height: 1.6;
    color: var(--dark-gray);
}

/* Headers with clean, readable fonts */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--heading-font);
    font-weight: 600;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header */
.header {
    background: var(--groningen-white);
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
}

/* Logo Section */
.logo {
    display: flex;
    align-items: center;
    gap: 15px;
}

.logo-image {
    height: 50px;
    width: auto;
    border-radius: 8px;
}

.logo h1 {
    color: var(--groningen-green);
    font-size: 1.8rem;
    font-family: var(--heading-font);
    font-weight: 700;
    margin: 0;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 30px;
}

.nav-menu a {
    text-decoration: none;
    color: var(--dark-gray);
    font-weight: 500;
    transition: color 0.3s ease;
}

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

.social-links {
    display: flex;
    gap: 15px;
}

.social-links a {
    color: var(--medium-gray);
    font-size: 1.2rem;
    transition: color 0.3s ease;
}

.social-links a:hover {
    color: var(--groningen-blue);
}

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background: var(--dark-gray);
    margin: 3px 0;
    transition: 0.3s;
}

/* Hero Section */
.hero {
    color: var(--groningen-green);
    min-height: 75vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('/images/phpgroningen-hero2.png') top center/cover no-repeat;
    filter: brightness(100%) contrast(100%) grayscale(20%);
    pointer-events: none; /* Allows clicks through to buttons/links */
    z-index: 1; /* Should be under .hero-content */
}

.hero-content {
    background: rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(8px);
    border-radius: 12px;
    color: var(--groningen-green);
    text-shadow: 0 0.1rem 0.2rem rgba(0,0,0,0.8);
    display: inline-block;
    position: relative;
    z-index: 2; /* Ensures content stays above the background */
    max-width: 1200px;
    margin: 40px auto;
    padding: 20px 20px;
    text-align: center;
    z-index: 2;
}

.hero-content-text {
    opacity: 1;
}

.hero h1 {
    font-family: var(--heading-font);
    text-shadow: 0 2px 8px rgba(0,0,0,0.5);
    font-size: 3.5rem;
    margin-bottom: 20px;
    font-weight: 700;
    letter-spacing: -0.02em;
}

.hero p {
    font-size: 1.3rem;
    margin-bottom: 30px;
    opacity: 0.9;
}

.hero-buttons {
    text-shadow: 0 2px 8px rgba(0,0,0,0.5);
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
}

.btn {
    font-family: var(--body-font);
    padding: 15px 30px;
    text-decoration: none;
    border-radius: 5px;
    font-weight: 600;
    transition: all 0.3s ease;
    display: inline-block;
    position: relative;
    overflow: hidden;
}

.btn:hover {
    transform: translateY(-2px);
    filter: brightness(70%) contrast(120%);
}

.btn-primary {
    background: var(--groningen-red);
    color: var(--groningen-white);
}

.btn-primary:hover {
    background: #c10e16;
    transform: translateY(-2px);
}

.btn-secondary {
    background: var(--groningen-white);
    color: var(--groningen-blue);
    border: 2px solid var(--groningen-blue);
}

.btn-secondary:hover {
    background: var(--groningen-white);
    color: var(--groningen-blue);
    transform: translateY(-2px);
}


/* About Section */
.about {
    padding: 80px 0;
    background: var(--light-gray);
}

.about h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 50px;
    color: var(--groningen-green);
}

.about-grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 50px;
    align-items: start;
}

.about-text h3 {
    color: var(--groningen-blue);
    margin: 30px 0 15px 0;
    font-size: 1.3rem;
}

.about-text p {
    margin-bottom: 20px;
    font-size: 1.1rem;
    line-height: 1.7;
}

.about-text ul {
    margin-left: 20px;
    margin-bottom: 20px;
}

.about-text li {
    margin-bottom: 10px;
    font-size: 1.1rem;
}

.about-stats {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.stat-card {
    background: var(--groningen-white);
    padding: 30px;
    border-radius: 10px;
    text-align: center;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    border-left: 4px solid var(--groningen-red);
}

.stat-card h3 {
    font-size: 2rem;
    color: var(--groningen-green);
    margin-bottom: 10px;
}

.stat-card p {
    color: var(--medium-gray);
    font-weight: 500;
}

/* Events Section */
.events {
    padding: 80px 0;
    background: var(--groningen-white);
}

.events h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 50px;
    color: var(--groningen-green);
}

.events-grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 40px;
}

.event-card {
    background: var(--light-gray);
    /* Your existing card styles */
    cursor: pointer;
    transition: box-shadow 0.2s;
    padding: 30px;
    border-radius: 10px;
    display: flex;
    gap: 20px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

.event-card-link {
    padding: 0;
    margin: 0;
    display: flex;
    text-decoration: none;
    color: inherit; /* Ensures normal text color */
}

.event-card:hover {
    box-shadow: 0 4px 16px rgba(0,0,0,0.15);
}

.event-date {
    background: var(--groningen-red);
    color: var(--groningen-white);
    padding: 20px;
    border-radius: 10px;
    text-align: center;
    min-width: 80px;
}

.event-date .month {
    display: block;
    font-size: 0.9rem;
    font-weight: bold;
}

.event-date .day {
    display: block;
    font-size: 2rem;
    font-weight: bold;
}

.event-content h3 {
    color: var(--groningen-blue);
    margin-bottom: 15px;
}

.event-content p {
    margin-bottom: 8px;
    color: var(--medium-gray);
}

.event-content i {
    color: var(--groningen-green);
    margin-right: 8px;
}

.event-info {
    background: var(--groningen-blue);
    color: var(--groningen-white);
    padding: 30px;
    border-radius: 10px;
    height: fit-content;
}

.event-info h3 {
    margin-bottom: 20px;
    font-size: 1.3rem;
}

.event-info p {
    margin-bottom: 15px;
    line-height: 1.6;
}

.event-info strong {
    color: var(--groningen-white);
}

/* Sponsors Carousel Section - FIXED */
.sponsors {
    padding: 80px 0;
    background: var(--light-gray);
}

.sponsors h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 50px;
    color: var(--groningen-green);
}

.carousel-container {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
}

.carousel-wrapper {
    overflow: hidden;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
    transform: translateZ(0);
    width: 100%;
}

.carousel-track {
    display: flex;
    transition: transform 0.5s ease-in-out;
    will-change: transform;
    width: 100%;
}

.sponsor-slide {
    min-width: 100%;
    max-width: 100%;
    flex-shrink: 0;
    box-sizing: border-box;
}

.sponsor-card {
    background: var(--groningen-white);
    border-radius: 15px;
    overflow: hidden;
    margin: 0;
    transition: transform 0.3s ease;
    height: 400px;
    display: flex;
    flex-direction: column;
    width: 100%;
    box-sizing: border-box;
}

.sponsor-card:hover {
    transform: translateY(-5px);
}

.sponsor-logo {
    background: var(--groningen-green);
    color: var(--groningen-white);
    padding: 40px;
    text-align: center;
    flex-shrink: 0;
}

.sponsor-logo h3 {
    font-size: 2.2rem;
    font-weight: bold;
    margin: 0;
}

.sponsor-content {
    padding: 30px;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

.sponsor-content h4 {
    color: var(--groningen-blue);
    margin-bottom: 15px;
    font-size: 1.3rem;
}

.sponsor-content p {
    line-height: 1.6;
    color: var(--medium-gray);
    flex-grow: 1;
}

/* Carousel Navigation */
.carousel-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 100%;
    display: flex;
    justify-content: space-between;
    pointer-events: none;
    z-index: 10;
}

.carousel-btn {
    background: rgba(255, 255, 255, 0.95);
    border: none;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    font-size: 24px;
    font-weight: bold;
    color: var(--groningen-green);
    cursor: pointer;
    transition: all 0.3s ease;
    pointer-events: all;
    box-shadow: 0 4px 15px rgba(0,0,0,0.15);
    backdrop-filter: blur(10px);
}

.carousel-btn:hover {
    background: var(--groningen-green);
    color: var(--groningen-white);
    transform: scale(1.1);
}

.carousel-btn:active {
    transform: scale(0.95);
}

.carousel-btn.prev {
    margin-left: -25px;
}

.carousel-btn.next {
    margin-right: -25px;
}

/* Carousel Indicators */
.carousel-indicators {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin-top: 30px;
}

.indicator {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: #ccc;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
}

.indicator::after {
    content: '';
    position: absolute;
    top: -4px;
    left: -4px;
    right: -4px;
    bottom: -4px;
    border-radius: 50%;
    background: transparent;
    transition: background 0.3s ease;
}

.indicator:hover::after {
    background: rgba(15, 71, 175, 0.2);
}

.indicator.active {
    background: var(--groningen-green);
    transform: scale(1.2);
}

.indicator:hover {
    background: var(--groningen-blue);
}

/* Contact Section */
.contact {
    padding: 80px 0;
    background: var(--groningen-white);
}

.contact h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 50px;
    color: var(--groningen-green);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
}

.contact-info h3 {
    color: var(--groningen-blue);
    margin-bottom: 20px;
    font-size: 1.5rem;
}

.contact-info p {
    margin-bottom: 30px;
    line-height: 1.6;
    font-size: 1.1rem;
}

.contact-links {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.contact-link {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 15px;
    background: var(--light-gray);
    border-radius: 8px;
    text-decoration: none;
    color: var(--dark-gray);
    transition: all 0.3s ease;
}

.contact-link:hover {
    background: var(--groningen-blue);
    color: var(--groningen-white);
}

.contact-link i {
    font-size: 1.2rem;
    width: 20px;
}

.contact-form h3 {
    color: var(--groningen-blue);
    margin-bottom: 20px;
    font-size: 1.5rem;
}

.contact-form p {
    line-height: 1.6;
    margin-bottom: 30px;
}

.organizers {
    background: var(--light-gray);
    padding: 20px;
    border-radius: 8px;
    border-left: 4px solid var(--groningen-green);
}

.organizers strong {
    color: var(--groningen-green);
}

/* Footer */
.footer {
    background: var(--dark-gray);
    color: var(--groningen-white);
    padding: 50px 0 20px 0;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-bottom: 30px;
}

.footer-section h3 {
    color: var(--groningen-green);
    margin-bottom: 20px;
}

.footer-section h4 {
    color: var(--groningen-white);
    margin-bottom: 15px;
}

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

.footer-section ul li {
    margin-bottom: 8px;
}

.footer-section ul li a {
    color: #ccc;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-section ul li a:hover {
    color: var(--groningen-blue);
}

.footer-social {
    display: flex;
    gap: 15px;
}

.footer-social a {
    color: #ccc;
    font-size: 1.3rem;
    transition: color 0.3s ease;
}

.footer-social a:hover {
    color: var(--groningen-blue);
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 15px;
}

.footer-logo-image {
    height: 40px;
    width: auto;
    border-radius: 6px;
}

.footer-logo h3 {
    margin: 0;
}

.footer-bottom {
    border-top: 1px solid #555;
    padding-top: 20px;
    text-align: center;
    color: #ccc;
}

/* Ripple Effect for Buttons */
.ripple {
    position: absolute;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.6);
    transform: scale(0);
    animation: ripple-animation 0.6s linear;
    pointer-events: none;
}

@keyframes ripple-animation {
    to {
        transform: scale(4);
        opacity: 0;
    }
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background-color: var(--groningen-white);
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: 0 10px 27px rgba(0,0,0,0.05);
        padding: 20px 0;
    }

    .nav-menu.active {
        left: 0;
    }

    .hamburger {
        display: flex;
    }

    .hamburger.active span:nth-child(2) {
        opacity: 0;
    }

    .hamburger.active span:nth-child(1) {
        transform: translateY(8px) rotate(45deg);
    }

    .hamburger.active span:nth-child(3) {
        transform: translateY(-8px) rotate(-45deg);
    }

    .hero {
        height: 50vh;
        max-height: 50vh;
    }

    .hero h1 {
        font-size: 2.5rem;
    }

    .hero p {
        font-size: 1.1rem;
    }

    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }

    .about-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }

    .about-stats {
        flex-direction: row;
        justify-content: space-around;
    }

    .stat-card {
        flex: 1;
        margin: 0 10px;
    }

    .events-grid {
        grid-template-columns: 1fr;
    }

    .event-card {
        flex-direction: column;
        text-align: center;
    }

    .contact-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }

    .carousel-container {
        margin: 0 20px;
    }

    .sponsor-card {
        height: auto;
        min-height: 350px;
    }

    .sponsor-logo {
        padding: 30px 20px;
    }

    .sponsor-logo h3 {
        font-size: 1.8rem;
    }

    .sponsor-content {
        padding: 20px;
    }

    .carousel-btn {
        width: 40px;
        height: 40px;
        font-size: 20px;
    }

    .carousel-btn.prev {
        margin-left: -20px;
    }

    .carousel-btn.next {
        margin-right: -20px;
    }

    .logo {
        gap: 10px;
    }

    .logo-image {
        height: 40px;
    }

    .logo h1 {
        font-size: 1.5rem;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }

    .hero h1 {
        font-size: 2rem;
    }

    .about h2,
    .events h2,
    .sponsors h2,
    .contact h2 {
        font-size: 2rem;
    }

    .about-stats {
        flex-direction: column;
    }

    .stat-card {
        margin: 0;
    }

    .carousel-container {
        margin: 0 10px;
    }

    .carousel-btn {
        width: 35px;
        height: 35px;
        font-size: 18px;
    }

    .logo {
        gap: 8px;
    }

    .logo-image {
        height: 35px;
    }

    .logo h1 {
        font-size: 1.3rem;
    }
}