:root {
  --primary: rgb(9, 164, 159);
  --dark-bg: #121212;
  --light-bg: #181818;
  --text-primary: #FFFFFF;
  --text-secondary: #B3B3B3;
}

/* RESET */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: 'Circular', -apple-system, BlinkMacSystemFont, sans-serif;
}

body {
  background: var(--dark-bg);
  color: var(--text-primary);
  overflow-x: hidden;
}

/* HEADER */
header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 32px;
  background: rgba(0,0,0,0.6);
  backdrop-filter: blur(6px);
  position: sticky;
  top: 0;
  z-index: 100;
}

nav a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 14px;
  font-weight: 700;
  transition: color 0.2s;
}

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

.header-right {
  display: flex;
  align-items: center;
  gap: 16px;
}

.search-container {
  background: #fff;
  padding: 8px 14px;
  border-radius: 20px;
  display: flex;
  align-items: center;
}

.search-container input {
  background: transparent;
  border: none;
  outline: none;
  margin-left: 8px;
  font-size: 14px;
}

.login-btn {
  background: var(--primary);
  border: none;
  padding: 10px 22px;
  border-radius: 20px;
  font-weight: 700;
  cursor: pointer;
}

.login-btn:hover {
  background: #b3e6e9;
}

/* HERO */
.hero {
  text-align: center;
  padding: 90px 24px;
  background: linear-gradient(to bottom, #156d67, var(--dark-bg));
}

.hero h2 {
  font-size: 48px;
  font-weight: 900;
  margin-bottom: 20px;
}

.hero p {
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto;
  font-size: 18px;
}

/* CAROUSEL */
.carousel-wrapper {
  overflow: hidden;
  padding: 50px 0;
  background: var(--dark-bg);
}

.carousel-track {
  display: flex;
  gap: 30px;
  animation: scroll 35s linear infinite;
}

.sponsor-item {
  min-width: 170px;
  background: var(--light-bg);
  border-radius: 16px;
  padding: 18px;
  text-align: center;
  text-decoration: none;
  color: var(--text-primary);
  box-shadow: 0 10px 25px rgba(0,0,0,0.4);
  transition: transform 0.3s, box-shadow 0.3s;
}

.sponsor-item img {
  width: 118px;
  height: 80px;
  object-fit: contain;
  margin-bottom: 10px;
}

.sponsor-item span {
  color: var(--text-secondary);
  font-size: 14px;
}

.sponsor-item:hover {
  transform: translateY(-8px);
  box-shadow: 0 0 20px rgba(9,164,159,0.35);
}

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

/* SPONSOR GRID */
.sponsor-section {
  padding: 80px 32px;
  text-align: center;
}

.sponsor-section h3 {
  font-size: 32px;
  margin-bottom: 50px;
}

.sponsor-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 32px;
}

.sponsor-card {
  background: var(--light-bg);
  border-radius: 20px;
  padding: 30px 24px;
  box-shadow: 0 12px 30px rgba(0,0,0,0.45);
  transition: transform 0.3s, box-shadow 0.3s;
}

.sponsor-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 0 25px rgba(9,164,159,0.4);
}

.sponsor-logo img {
  width: 118px !important;
  height: 90px;
  object-fit: contain;
  margin-bottom: 18px;
}

.sponsor-name {
  font-weight: 700;
  margin-bottom: 6px;
}

.sponsor-desc {
  font-size: 14px;
  color: var(--text-secondary);
}

/* FOOTER */
footer {
  background: var(--light-bg);
  border-top: 1px solid #282828;
  text-align: center;
  padding: 40px 20px;
  color: var(--text-secondary);
}

.footer-logos img {
  height: 60px;
  margin-bottom: 12px;
}

/* RESPONSIVE */
@media (max-width: 768px) {
  header {
    flex-wrap: wrap;
    gap: 16px;
  }

  nav {
    width: 100%;
    justify-content: center;
  }
}