/* Base Styles */
body {
  font-family: 'Poppins', sans-serif;
  margin: 0;
  padding: 0;
  min-height: 100vh;
  background-color: #1a1a2e; /* Dark fallback color */
  color: white;
  text-shadow: 1px 1px 3px rgba(0,0,0,0.5);
  transition: background-image 1.5s ease;
}

body.celebration {
  background: 
    linear-gradient(rgba(0,0,0,0.3), rgba(0,0,0,0.3)),
    url('bg.jpg') center/cover no-repeat fixed;
}

.countdown-overlay {
  background-color: rgba(0, 0, 0, 0.7);
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 20px;
  transition: background-color 1s ease;
}

body.celebration .countdown-overlay {
  background-color: rgba(0, 0, 0, 0.4);
}

/* Countdown Styles */
#countdown {
  display: flex;
  justify-content: center;
  gap: 20px;
  margin: 40px 0;
  flex-wrap: wrap;
}

.time-unit {
  background-color: rgba(255, 255, 255, 0.15);
  backdrop-filter: blur(5px);
  border-radius: 12px;
  padding: 20px 15px;
  min-width: 120px;
  box-shadow: 0 4px 15px rgba(0,0,0,0.2);
  transition: all 0.5s ease;
}

.time-unit span:first-child {
  font-size: 2.5rem;
  font-weight: 700;
  display: block;
  color: #ffcc00;
}

.time-unit span:last-child {
  font-size: 1rem;
  opacity: 0.9;
}

h1 {
  font-size: 3rem;
  margin-bottom: 10px;
  text-align: center;
}

/* Media Container */
.media-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 30px;
  max-width: 1000px;
  margin: 0 auto;
  opacity: 0;
  transform: translateY(20px);
  transition: all 11s ease;
}

body.celebration .media-container {
  opacity: 1;
  transform: translateY(0);
}

/* Image Styles */
#hiddenImage {
  width: 100%;
  max-width: 800px;
  aspect-ratio: 16/9;
  background: url('image.jpeg') center/contain no-repeat;
  border-radius: 16px;
  border: 1px solid rgba(255,255,255,0.3);
  box-shadow: 0 8px 32px rgba(0,0,0,0.3);
  opacity: 0;
  transform: scale(0.95);
  transition: all 11s ease 0.3s;
}

body.celebration #hiddenImage {
  opacity: 0.9;
  transform: scale(1);
}

/* Video Styles */
#hiddenVideo {
  width: 100%;
  display: flex;
  justify-content: center;
}

#birthdayVideo {
  width: 100%;
  max-width: 800px;
  aspect-ratio: 16/9;
  border-radius: 16px;
  border: 1px solid rgba(255,255,255,0.3);
  box-shadow: 0 8px 32px rgba(0,0,0,0.3);
  opacity: 0;
  transform: scale(0.95);
  transition: all 11s ease 0.3s;
}

body.celebration #birthdayVideo {
  opacity: 0.90;
  transform: scale(1);
}

/* Responsive Design */
@media (max-width: 768px) {
  #countdown {
    gap: 10px;
  }
  
  .time-unit {
    min-width: 80px;
    padding: 15px 10px;
  }
  
  .time-unit span:first-child {
    font-size: 2rem;
  }
  
  h1 {
    font-size: 2.2rem;
  }
  
  .media-container {
    gap: 20px;
  }
}

@media (max-width: 480px) {
  #countdown {
    gap: 8px;
  }
  
  .time-unit {
    min-width: 70px;
    padding: 10px 5px;
  }
  
  .time-unit span:first-child {
    font-size: 1.5rem;
  }
  
  .time-unit span:last-child {
    font-size: 0.8rem;
  }
}