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

body {
  min-height: 100vh;
  font-family: 'Poppins', sans-serif;
  display: flex;
  justify-content: center;
  align-items: center;
  background: linear-gradient(135deg, #1e3c72, #2a5298);
  overflow: hidden;
  color: #fff;
  position: relative;
}

/* waves background */
.ocean {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 15%;
  overflow: hidden;
}

.wave {
  background: rgba(255,255,255,0.3);
  position: absolute;
  top: -40px;
  width: 200%;
  height: 200px;
  border-radius: 43%;
  animation: wave 8s infinite linear;
}

.wave:nth-child(2) {
  top: -60px;
  animation: wave 12s infinite linear reverse;
  opacity: 0.5;
}

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

.redirect-box {
  position: relative;
  z-index: 2;
  background: rgba(255,255,255,0.1);
  backdrop-filter: blur(12px);
  border-radius: 20px;
  padding: 40px 30px;
  text-align: center;
  max-width: 420px;
  width: 100%;
  box-shadow: 0 8px 30px rgba(0,0,0,0.3);
}

.logo {
  font-size: 3rem;
  color: #4dd0e1;
  margin-bottom: 15px;
  text-shadow: 0 0 20px rgba(0,255,255,0.8);
}

h1 {
  font-size: 1.8rem;
  margin-bottom: 12px;
  font-weight: 700;
  line-height: 1.3;
}

.highlight {
  color: #ffeb3b;
  text-shadow: 0 0 10px #ffeb3b;
}

p {
  margin-bottom: 15px;
  font-size: 1.1rem;
  opacity: 0.9;
}

/* countdown */
.countdown {
  font-size: 3rem;
  font-weight: bold;
  background: rgba(0,0,0,0.4);
  border-radius: 50%;
  width: 100px;
  height: 100px;
  display: flex;
  justify-content: center;
  align-items: center;
  margin: 20px auto;
  box-shadow: inset 0 0 20px rgba(255,255,255,0.3),
              0 0 20px rgba(0,0,0,0.4);
}

button {
  padding: 14px 30px;
  background: linear-gradient(90deg, #4dd0e1, #81d4fa);
  border: none;
  border-radius: 50px;
  font-size: 1.1rem;
  color: white;
  cursor: pointer;
  font-weight: 600;
  overflow: hidden;
  position: relative;
  z-index: 1;
  transition: transform 0.3s ease;
}

button::before {
  content: "";
  position: absolute;
  top: 0; left: -100%;
  width: 100%; height: 100%;
  background: rgba(255,255,255,0.3);
  transition: left 0.4s ease;
  z-index: -1;
}

button:hover::before {
  left: 0;
}

button:hover {
  transform: scale(1.05);
}

.footer {
  margin-top: 20px;
  font-size: 0.9rem;
  opacity: 0.7;
}

/* responsive */
@media (max-width: 600px) {
  h1 { font-size: 1.5rem; }
  p { font-size: 1rem; }
  .countdown { width: 80px; height: 80px; font-size: 2.2rem; }
  button { padding: 12px 25px; font-size: 1rem; }
}