/* Background styles */
body {
  font-family: 'Poppins', sans-serif;
  background: linear-gradient(135deg, #3498db, #2ecc71);
  color: #fff;
  margin: 0;
  padding: 0;
  height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  background-size: cover;
}

header {
  text-align: center;
  padding: 20px; /* Reduced padding for header */
  background-color: rgba(0, 0, 0, 0.5);
  border-bottom: 2px solid #fff;
  margin-bottom: 20px; /* Reduced bottom margin */
}

h1 {
  font-size: 2.5em; /* Slightly smaller title */
  margin-bottom: 10px;
}

p {
  font-size: 1.1em; /* Slightly smaller subtitle */
}

/* Blockchain container */
#blockchain {
  flex: 1;
  padding: 20px;
  overflow-y: auto;
  display: flex;
  flex-wrap: wrap; /* This allows blocks to wrap to new lines */
  justify-content: space-evenly; /* Center the blocks */
}

/* Button Styles */
#add-block-btn {
  position: fixed;
  bottom: 50px;
  right: 50px;
  background-color: #3498db; /* Blue background */
  border: none;
  border-radius: 50%;
  width: 60px;
  height: 60px;
  font-size: 36px;
  color: #fff;
  box-shadow: 0px 4px 8px rgba(0, 0, 0, 0.2); /* Subtle shadow */
  cursor: pointer;
  transition: background 0.3s ease, transform 0.3s ease;
  animation: pulse 1.5s infinite; /* Pulse animation */
}

#add-block-btn:hover {
  background-color: #2980b9; /* Darker blue on hover */
  transform: scale(1.1); /* Slightly enlarge on hover */
  box-shadow: 0px 6px 12px rgba(0, 0, 0, 0.3); /* More prominent shadow on hover */
}

/* Pulse animation */
@keyframes pulse {
  0% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.1);
  }
  100% {
    transform: scale(1);
  }
}

/* Footer Styles */
footer {
  text-align: center;
  padding: 20px;
  background-color: rgba(0, 0, 0, 0.8);
}

footer p {
  color: #ccc;
}

footer a {
  color: #2ecc71;
  text-decoration: none;
}

footer a:hover {
  text-decoration: underline;
}

/* Block Styles */
.block {
  background-color: #fff;
  color: #000;
  margin: 15px;
  padding: 20px;
  width: 320px; /* Increased width for more space */
  height: 300px; /* Increased height for better visibility of content */
  border-radius: 8px;
  box-shadow: 0px 2px 6px rgba(0, 0, 0, 0.2);
  display: flex;
  flex-direction: column; /* Stack content vertically */
  justify-content: space-between;
  overflow: hidden; /* Prevent overflow */
  opacity: 0;
  animation: fadeIn 0.5s forwards;
}
@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}
.block:hover {
  transform: scale(1.05); /* Slight scaling */
  box-shadow: 0px 8px 16px rgba(0, 0, 0, 0.2); /* Larger shadow */
  background-color: #f0f8ff; /* Light blue background */
  transition: transform 0.3s ease, background-color 0.3s ease;
}

.block.invalid {
  background-color: #ffcccb; 
  color: #000;
}

.block p {
  margin: 5px 0;
  word-wrap: break-word; /* Allow text to wrap and prevent overflow */
}

.editable-data {
  background-color: #f0f0f0;
  padding: 5px;
  border-radius: 4px;
}

.save-btn {
  background-color: #3498db;
  color: #fff;
  border: none;
  padding: 10px 20px;
  border-radius: 5px;
  cursor: pointer;
}

.save-btn:hover {
  background-color: #2980b9;
}

/* Prevent overflow of long hashes */
.full-hash, .previous-hash {
  word-wrap: break-word;
  overflow-wrap: break-word;
  white-space: normal; /* Allow hash text to wrap */
  font-size: 0.8em; /* Smaller font for better readability */
  max-width: 100%;
  display: block;
}

/* Styling for the previous hash to ensure visibility */
.previous-hash {
  font-size: 0.9em; /* Slightly larger font for visibility */
  margin-top: 10px;
}
.copy-btn {
  background: none;
  border: none;
  color: #3498db;
  font-size: 16px;
  cursor: pointer;
}

.copy-btn:hover {
  color: #2980b9;
}