body {
    font-family: 'Roboto', sans-serif;
    background-color: #f4f4f4;
    color: #333;
    margin: 0;
    padding: 0;
}

header {
    background-color: #000;
    color: #fff;
    padding: 10px 0;
    text-align: center;
    position: sticky;
    top: 0;
    width: 100%;
    z-index: 1000;
}

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

header .logo img {
    height: 60px;
}

.nav-toggle {
    background: none;
    border: none;
    cursor: pointer;
    display: none;
}

.hamburger {
    width: 25px;
    height: 2px;
    background: #fff;
    position: relative;
    transition: all 0.3s;
}

.hamburger::before,
.hamburger::after {
    content: '';
    position: absolute;
    width: 25px;
    height: 2px;
    background: #fff;
    transition: all 0.3s;
}

.hamburger::before {
    top: -8px;
}

.hamburger::after {
    top: 8px;
}

header nav ul {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
}

header nav ul li {
    margin: 0 15px;
}

header nav ul li a {
    color: #fff;
    text-decoration: none;
    font-family: 'Oswald', sans-serif;
    font-weight: bold;
    font-size: 1.1em;
}

.hero {
    position: relative;
    text-align: center;
    color: white;
    overflow: hidden;
}

.hero img {
    width: 100%;
    height: auto;
}

.hero .hero-text {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-family: 'Oswald', sans-serif;
    background: rgba(0, 0, 0, 0.7);
    padding: 20px;
    border-radius: 10px;
}

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

section {
    padding: 50px 20px;
    text-align: center;
}

.about h2, .results-highlights h2, .sponsors h2, .videos-preview h2, .contact h2 {
    font-family: 'Oswald', sans-serif;
    font-weight: bold;
    margin-bottom: 20px;
    font-size: 2em;
}

.about p, .results-highlights p, .sponsors p, .videos-preview p, .contact p {
    font-family: 'Roboto', sans-serif;
    line-height: 1.6;
    font-size: 1.1em;
}

.results-card {
    background-color: #fff;
    padding: 0;
    border-radius: 10px;
    margin: 0 auto;
    max-width: 900px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
    text-align: left;
}

.results-year {
    padding: 20px;
}

.results-year + .results-year {
    border-top: 1px solid #eee;
}

.results-card h3 {
    font-family: 'Oswald', sans-serif;
    font-weight: bold;
    margin: 0 0 10px;
    font-size: 1.5em;
}

.results-org {
    margin: 0 0 15px;
    color: #333;
}

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

.results-list li {
    margin-bottom: 10px;
    line-height: 1.5;
}

.sponsor-logos {
    display: flex;
    justify-content: space-around;
    flex-wrap: wrap;
}

.sponsor-logos a {
    margin: 20px;
}

.sponsor-logos img {
    max-height: 100px;
}

.video-thumbnails {
    display: flex;
    justify-content: space-around;
    flex-wrap: wrap;
}

.video-tile {
    flex: 1 1 30%;
    margin: 10px;
    position: relative;
    padding-bottom: 56.25%; /* 16:9 aspect ratio */
    height: 0;
    overflow: hidden;
}

.video-tile iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: none;
}

.sponsorship-opportunities {
    margin-top: 20px;
}

.toggle-button {
    background-color: #000;
    color: #fff;
    padding: 10px 20px;
    border: none;
    cursor: pointer;
    font-family: 'Oswald', sans-serif;
    font-weight: bold;
    border-radius: 5px;
}

.sponsorship-content {
    display: none;
    margin-top: 20px;
    text-align: left;
}

.sponsorship-content h3 {
    font-family: 'Oswald', sans-serif;
    font-weight: bold;
    margin-bottom: 10px;
    font-size: 1.5em;
}

.sponsorship-content ul {
    list-style: none;
    padding: 0;
}

.sponsorship-content li {
    margin-bottom: 10px;
}

.sponsorship-tiles {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
}

.tile {
    background-color: #eee;
    padding: 20px;
    border-radius: 10px;
    margin: 10px;
    flex: 1 1 calc(50% - 40px);
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
}

.goods-services {
    margin-top: 20px;
    background-color: #fff;
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
}

footer {
    background-color: #000;
    color: #fff;
    text-align: center;
    padding: 10px 0;
    font-family: 'Roboto', sans-serif;
}

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

/* Responsive Design */
@media (max-width: 768px) {
    .nav-toggle {
        display: block;
    }

    .nav-links {
        display: none;
        flex-direction: column;
        width: 100%;
        text-align: center;
    }

    .nav-links li {
        margin: 10px 0;
    }

    header .container {
        flex-direction: column;
    }

    .hero .hero-text {
        width: 90%;
    }

    .sponsor-logos {
        flex-direction: column;
    }

    .sponsor-logos a {
        margin: 10px 0;
    }

    section {
        padding: 20px 10px;
    }

    .sponsorship-tiles {
        flex-direction: column;
    }

    .tile {
        flex: 1 1 100%;
    }

    .video-tile {
        flex: 1 1 100%;
    }
}