:root {
    --bg-color: #171717;
    --primary-green: #3d8568;
    --text-light: #e0e0e0;
    --text-dark: #a0a0a0;
    --card-bg: #4a4a4a;
    --border-color: #2a2a2a;
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-light);
    line-height: 1.6;
}

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

/*  Header & Nav  */
.header {
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    background: rgba(13, 13, 13, 0.8);
    backdrop-filter: blur(10px);
    padding: 1rem 0;
    border-bottom: 1px solid var(--border-color);
}

.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    text-decoration: none;
    color: white;
    font-weight: 600;
    font-size: 1.2rem;
}

.logo img {
    height: 30px;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-link {
    text-decoration: none;
    color: var(--text-light);
    transition: color 0.3s;
}

.nav-link:hover {
    color: var(--primary-green);
}

.cta-button {
    text-decoration: none;
    padding: 10px 20px;
    border-radius: 8px;
    font-weight: 600;
    transition: all 0.3s;
}

.nav-cta {
    background-color: var(--primary-green);
    color: black;
}

.nav-cta:hover {
    background-color: white;
}

.hamburger {
    display: none;
    cursor: pointer;
}

.bar {
    display: block;
    width: 25px;
    height: 3px;
    margin: 5px 0;
    background-color: white;
}

/*  Hero Section  */
.hero {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    min-height: 100vh;
    padding-top: 100px;
    overflow: hidden;
}

.hero-video {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transform: translate(-50%, -50%);
    z-index: 1;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5); 
    z-index: 2;
}

.hero-content {
    position: relative;
    z-index: 3;
    width: 100%;
}

.hero-card {
    background: rgba(18, 18, 18, 0.5); 
    backdrop-filter: blur(10px); 
    -webkit-backdrop-filter: blur(10px); 
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 16px;
    padding: 2.5rem 2rem;
    max-width: 800px;
    margin: 0 auto;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
}

.registration-status {
    display: inline-block;
    padding: 5px 15px;
    border: 1px solid var(--primary-green);
    color: var(--primary-green);
    border-radius: 20px;
    margin-bottom: 1rem;
    font-size: 0.9rem;
    background-color: rgba(0, 242, 145, 0.1); 
}

.hero h1 {
    font-size: 6rem;
    font-weight: 700;
    color: white; 
    text-shadow: none;
}

.hero p {
    font-size: 1.25rem;
    color: var(--text-light); 
    max-width: 600px;
    margin: 1rem auto;
}

.hero p strong {
    color: white;
    font-weight: 600;
}

.event-details {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin: 2rem 0;
    color: var(--text-light);
}

.hero-buttons {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-top: 2rem;
}

.cta-button {
    background-color: var(--primary-green);
    color: black;
}
.cta-button:hover {
    background-color: white;
    transform: translateY(-3px);
}
.cta-button.secondary {
    background-color: rgba(255, 255, 255, 0.1);
    color: white;
    border: 1px solid rgba(255, 255, 255, 0.2);
}
.cta-button.secondary:hover {
    background-color: rgba(255, 255, 255, 0.2);
    border-color: rgba(255, 255, 255, 0.3);
}

/*  General Section Styling  */
.section {
    padding: 80px 0;
}

.section-title {
    font-size: 3rem;
    text-align: center;
    margin-bottom: 1rem;
}

.section-subtitle {
    text-align: center;
    color: var(--text-dark);
    max-width: 600px;
    margin: 0 auto 3rem auto;
}

.highlight {
    color: var(--primary-green);
}

/*  About & Stats  */
.about-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.about-image img {
    width: 100%;
    border-radius: 12px;
}

.stats-container {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
    margin-top: 4rem;
}

.stat-card {
    background: var(--card-bg);
    padding: 1.5rem;
    border-radius: 12px;
    text-align: center;
}

.stat-card span {
    font-size: 2rem;
    font-weight: 700;
}

/*  Tracks Section  */
.tracks-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}

.track-card {
    background: var(--card-bg);
    padding: 2rem;
    border-radius: 12px;
    border: 1px solid var(--border-color);
    transition: border-color 0.3s, transform 0.3s;
}

.track-card:hover {
    border-color: var(--primary-green);
    transform: translateY(-5px);
}

/*  FAQ Section  */
.faq-container {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    border-bottom: 1px solid var(--border-color);
}

.faq-question {
    padding: 1.5rem;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-weight: 600;
}

.faq-question::after {
    content: '+';
    font-size: 1.5rem;
    transition: transform 0.3s;
}

.faq-item.active .faq-question::after {
    transform: rotate(45deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease-out;
}

.faq-answer p {
    padding: 0 1.5rem 1.5rem;
    color: var(--text-dark);
}

/*  Sponsors  */
.sponsors-grid {
    display: flex;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
    gap: 3rem;
    margin-top: 3rem;
}

.sponsors-grid img {
    max-height: 400px;
    opacity: 0.7;
    transition: opacity 0.3s;
}

.sponsors-grid img:hover {
    opacity: 1;
}

/* Small Sponsors */
.small-sponsor {
    max-width: 140px;
    height: auto;
}

@media (max-width: 600px) {
    .small-sponsor {
        max-width: 90px;
    }
}

/*  Footer  */
.footer {
    padding: 3rem 0;
    border-top: 1px solid var(--border-color);
    text-align: center;
}

.social-links {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
    margin: 1rem 0;
}

.social-links a {
    color: var(--text-dark);
    text-decoration: none;
    transition: color 0.3s;
}

.social-links a:hover {
    color: white;
}

/*  Responsive Design  */
@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 65px;
        background: var(--bg-color);
        width: 100%;
        flex-direction: column;
        text-align: center;
        gap: 0;
        transition: left 0.3s;
    }

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

    .nav-menu li {
        padding: 1rem;
        border-bottom: 1px solid var(--border-color);
    }

    .hamburger {
        display: block;
    }

    .nav-cta {
        display: none;
    }

    .hero h1 {
        font-size: 4rem;
    }

    .about-container,
    .stats-container,
    .tracks-grid {
        grid-template-columns: 1fr;
    }
}
/* Agenda Section */
.agenda-section {
    padding: 80px 0;
    background: #f7faf9;
    border-radius: 16px;
}

.agenda-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.agenda-card {
    background: #ffffff;
    padding: 25px;
    border-radius: 16px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.06);
    border: 1px solid #eaeaea;
}

.agenda-card h3 {
    margin-bottom: 20px;
    color: #3d8568;
    font-weight: 700;
}

.agenda-item {
    margin-bottom: 15px;
    padding-left: 12px;
    border-left: 3px solid #3d8568;
}

.agenda-time {
    font-weight: 600;
    display: block;
    color: #222;
}

.agenda-text {
    margin: 5px 0 0;
    color: #555;
}

#agenda {
    display: none;
}