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

html {
  scroll-behavior: smooth;
}

body {
  font-family: Arial, sans-serif;
  color: white;
  background: #111827;
}

.hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  padding: 40px 20px;
  background:
    linear-gradient(rgba(0, 0, 0, 0), rgba(0, 0, 0, 0)),
    url("ocs0.jpg")
    center / cover no-repeat;
  position: relative;
  width: 100%;
  overflow: hidden;
}

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

.hero-content {
  position: absolute;
  inset: 0;
  z-index: 1;

  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  padding: 20px;
}


.hero h1 {
  font-size: clamp(2.5rem, 8vw, 6rem);
  margin-bottom: 20px;
}

.hero p {
  font-size: 1.2rem;
  max-width: 600px;
  margin-bottom: 35px;
}

.scroll-button {
  color: white;
  text-decoration: none;
  padding: 14px 24px;
  border: 2px solid white;
  border-radius: 999px;
  transition: background 0.3s, color 0.3s;
}

.scroll-button:hover {
  background: white;
  color: #111827;
}

.countdown-section {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  padding: 60px 20px;

  background:
    linear-gradient(rgba(0, 0, 0, 0.5), rgba(0, 0, 0, 0.65)),
    url("ocs1.jpg")
    center / cover no-repeat;
}

.countdown-section h2 {
  font-size: clamp(2rem, 5vw, 4rem);
  margin-bottom: 12px;
}

.countdown-section p {
  margin-bottom: 35px;
  font-size: 1.1rem;
}

.countdown {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 18px;
}

.time-box {
  min-width: 120px;
  padding: 24px 18px;
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.15);
  backdrop-filter: blur(8px);
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.2);
}

.time-box span {
  display: block;
  font-size: 3rem;
  font-weight: bold;
}

.time-box small {
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  opacity: 0.8;
}

#finished {
  display: none;
  font-size: 2rem;
  font-weight: bold;
}

.hero,
.countdown-section {
  background-position: center;
  background-repeat: no-repeat;
  background-size: cover;
}

@media (max-width: 600px) {
  .hero,
  .countdown-section {
    background-size: contain;
    background-color: #111827;
  }
}