.birthday-countdown {
  text-align: center;
  border: 2px solid #ddd;
  padding: 20px;
  border-radius: 12px;
  margin: 20px auto;
  max-width: 600px;
  background: linear-gradient(135deg, #550000, #880000);
  color: white;
  font-family: Arial, sans-serif;
  box-shadow: 0 6px 15px rgba(0,0,0,0.2);
}

/* Title */
.birthday-countdown h2 {
  font-size: clamp(1.2rem, 4vw, 2rem);
  margin-bottom: 15px;
  color: yellow;
}

/* Dropdowns */
.selectors {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
  margin-bottom: 20px;
}

.selectors label {
  font-size: clamp(0.8rem, 2.5vw, 1rem);
  margin: 2px 0;
}

.selectors select {
  padding: 5px 8px;
  border-radius: 6px;
  border: 1px solid #ccc;
  font-size: clamp(0.8rem, 2.5vw, 1rem);
  background: #fff;
  color: #333;
  width: clamp(80px, 25vw, 140px); /* 👈 scales responsively */
  max-width: 100%;
}

/* Countdown time boxes */
.time-boxes {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(70px, 1fr));
  gap: 10px;
  margin-top: 10px;
}

.time-box {
  background: rgba(255,255,255,0.1);
  border-radius: 10px;
  padding: clamp(10px, 2vw, 18px);
  text-align: center;
  transition: transform 0.2s ease;
}

.time-box:hover {
  transform: scale(1.05);
}

.number {
  display: block;
  font-size: clamp(1.2rem, 6vw, 2.5rem);
  font-weight: bold;
}

.label {
  display: block;
  font-size: clamp(0.7rem, 3vw, 1rem);
  margin-top: 5px;
}

/* Cake */
#cake {
  margin-top: 20px;
  font-size: clamp(1.5rem, 6vw, 2.5rem);
}

.hidden {
  display: none;
}

/* Extra small screens */
@media (max-width: 400px) {
  .selectors {
    flex-direction: column;
    align-items: center;
  }

  .selectors select {
    width: 100%; /* full width on very small screens */
  }

  .time-boxes {
    grid-template-columns: repeat(2, 1fr); /* 2 per row */
  }
}