* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', sans-serif;
    scroll-behavior: smooth;
}

body {
    background: #000000;
    color: #fff;
}

nav {
    position: fixed;
    width: 100%;
    padding: 15px 8%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: rgb(255, 255, 255);
    backdrop-filter: blur(10px);
    z-index: 1000;
}

nav ul {
    list-style: none;
    display: flex;
    gap: 25px;
}

nav a {
    text-decoration: none;
    color: #fff;
    font-weight: 500;
}

.hero {
    height: 100vh;
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
    text-align: center;
}

.bg-video {
    position: absolute;
    width: 100%;
    height: 100%;
    object-fit: cover;
    z-index: -1;
}

.hero-content h1 {
    font-size: 4rem;
    letter-spacing: 3px;
    animation: fadeIn 2s ease;
}

.hero-content p {
    margin: 15px 0;
    font-size: 1.5rem;
}

.btn {
    display: inline-block;
    padding: 12px 30px;
    margin-top: 20px;
    background: linear-gradient(45deg, #ff3c00, #ffb300);
    border-radius: 30px;
    text-decoration: none;
    color: #fff;
    font-weight: bold;
    transition: 0.3s;
}

.btn:hover {
    transform: scale(1.1);
}

.section {
    padding: 100px 8%;
    text-align: center;
}

.section.dark {
    background: #6200ff;
}

.cards {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 30px;
    margin-top: 40px;
}

.card {
    padding: 30px;
    background: rgb(111, 1, 255);
    backdrop-filter: blur(8px);
    border-radius: 15px;
    width: 250px;
    transition: 0.4s;
    
}
.card p {
    margin-top: 12px;
    font-size: 14px;
    line-height: 1.6;
}

.card:hover {
    transform: translateY(-10px);
}

footer {
    padding: 20px;
    text-align: center;
    background: #000;
}

/* Countdown */
#countdown {
    display: flex;
    gap: 20px;
    justify-content: center;
    font-size: 1.5rem;
    margin-top: 20px;
}

/* Sponsor Slider */
.sponsor-slider {
    overflow: hidden;
    position: relative;
    width: 100%;
    margin-top: 40px;
}

.slide-track {
    display: flex;
    width: calc(250px * 8);
    animation: scroll 20s linear infinite;
}

.slide-track img {
    width: 200px;
    margin: 0 25px;
}

@keyframes scroll {
    0% { transform: translateX(0); }
    100% { transform: translateX(-50%); }
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(40px); }
    to { opacity: 1; transform: translateY(0); }
}
/* Expandable Card */
.expandable {
    cursor: pointer;
    overflow: hidden;
    position: relative;
}

/* Light streak animation */
.expandable::before {
    content: "Runners Peringode";
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(120deg, transparent, rgba(255,255,255,0.3), transparent);
    transition: 0.8s;
}

.expandable:hover::before {
    left: 100%;
}

/* Header */
.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.title {
    display: flex;
    align-items: center;
    gap: 10px;
}

.title h3 {
    margin: 0;
}

.km {
    font-weight: bold;
    font-size: 20px;
}

/* Hidden content */
.card-content {
    max-height: 0;
    overflow: hidden;
    transition: 0.6s ease;
    margin-top: 10px;
}

.expandable.active .card-content {
    max-height: 200px;
}

/* Difficulty Bar */
.difficulty {
    margin-top: 15px;
    position: relative;
}

.difficulty .bar {
    height: 6px;
    background: white;
    border-radius: 5px;
    margin-bottom: 5px;
    animation: pulse 2s infinite;
}

.difficulty span {
    font-size: 12px;
}

@keyframes pulse {
    0% { opacity: 0.6; }
    50% { opacity: 1; }
    100% { opacity: 0.6; }
}
/* SVG Runner Path */
.runner-path {
    width: 100%;
    margin-bottom: 40px;
}

.runner-path svg {
    width: 100%;
    height: 120px;
}

/* Neon Glass Effect */
.card {
    backdrop-filter: blur(15px);
    border: 2px solid rgba(255,255,255,0.2);
    box-shadow: 0 0 15px rgba(255,255,255,0.2);
    transition: transform 0.4s ease, box-shadow 0.4s ease;
}

/* 3D Tilt Effect */
.card:hover {
    transform: perspective(1000px) rotateX(8deg) rotateY(8deg) scale(1.05);
    box-shadow: 0 20px 40px rgba(0,0,0,0.6);
}

/* Finish Line Animation */
.finish-line {
    width: 100%;
    height: 6px;
    background: repeating-linear-gradient(
        45deg,
        black,
        black 10px,
        white 10px,
        white 20px
    );
    margin-top: 40px;
    opacity: 0;
}
{
    margin:0;
    font-family: 'Segoe UI', sans-serif;
    background: linear-gradient(to bottom, #f2f2f2, #ffffff);
}

.sponsor-section{
    padding: 60px 5%;
    text-align:center;
}

.sponsor-title{
    font-size:14px;
    letter-spacing:1px;
    margin-bottom:20px;
    color:#493a3a;
    text-transform:uppercase;
}

/* Main Grid */
.sponsor-grid{
    display:grid;
    gap:60px;
}

/* Two column top section */
.top-row{
    display:grid;
    grid-template-columns: 1fr 1fr;
    gap:80px;
    align-items:center;
}

/* Associate row */
.associate-row{
    display:grid;
    grid-template-columns: repeat(4, 1fr);
    gap:50px;
    align-items:center;
}

/* Partner row */
.partner-row{
    display:grid;
    grid-template-columns: repeat(5, 1fr);
    gap:50px;
    align-items:center;
}

.sponsor-card{
    background:#fff;
    padding:30px;
    border-radius:12px;
    box-shadow:0 5px 20px rgb(37, 28, 88);
    transition:0.3s;
}

.sponsor-card:hover{
    transform:translateY(-6px);
    box-shadow:0 10px 30px rgb(255, 0, 0);
}

.sponsor-card img{
    max-width:100%;
    max-height:90px;
    object-fit:contain;
}

.partner-row .sponsor-card img{
    max-height:70px;
}

/* Responsive */
@media(max-width:1200px){
    .associate-row{
        grid-template-columns: repeat(2,1fr);
    }
    .partner-row{
        grid-template-columns: repeat(2,1fr);
    }
}

@media(max-width:768px){
    .top-row{
        grid-template-columns:1fr;
    }
    .associate-row,
    .partner-row{
        grid-template-columns:1fr;
    }
}