/* Basic Reset */
@import url('https://fonts.googleapis.com/css2?family=Roboto:wght@400;500;700&display=swap');

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: 'Roboto', sans-serif;
}

body {
  background-color: #a3b8e0; /* Fallback for older browsers */
  background: linear-gradient(135deg, #83a8df, #c3cfe2);
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.25rem;
}

.container {
  background-color: #ffffff;
  border-radius: 0.75rem;
  padding: 1.5rem;
  width: 100%;
  max-width: 800px;
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15);
}

h1 {
  text-align: center;
  margin-bottom: 1.5rem;
  color: #2d3748;
  font-size: 1.75rem;
  font-weight: 700;
  position: relative;
  padding-bottom: 0.5rem;
}

h1::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 40%;
  height: 3px;
  background-color: #667eea;
  border-radius: 2px;
}

#generate-btn {
  background: linear-gradient(45deg, #667eea, #764ba2);
  color: #ffffff;
  border: none;
  padding: 0.75rem 1.5rem;
  border-radius: 2rem;
  cursor: pointer;
  font-weight: 500;
  font-size: 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  margin: 0 auto 2rem;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

#generate-btn i {
  font-size: 1rem;
}

#generate-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 8px rgba(102, 126, 234, 0.3);
}

#generate-btn:active {
  transform: translateY(0);
  box-shadow: none;
}

.palette-container {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
}

.color-box {
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
  transition: transform 0.2s ease;
}

.color-box:hover {
  transform: translateY(-4px);
}

.color {
  height: 120px;
  cursor: pointer;
}

.color-info {
  background-color: #ffffff;
  padding: 0.6rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.875rem;
}

.box-value {
  font-weight: 500;
  color: #2d3748;
  letter-spacing: 0.5px;
}

.copy-btn {
  cursor: pointer;
  color: #4a5568;
  transition: color 0.2s ease;
}

.copy-btn:hover {
  color: #5a67d8;
}

@media (max-width: 768px) {
  .palette-container {
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
  }

  h1 {
    font-size: 1.5rem;
  }

  #generate-btn {
    padding: 0.6rem 1.25rem;
    font-size: 0.9rem;
  }
}

@media (max-width: 480px) {
  .palette-container {
    grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
  }

  .container {
    padding: 1rem;
  }
}