@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@300;400;500;600&display=swap');

:root {
  --primary-color: #2196f3;
  --secondary-color: #1565c0;
  --background-color: #f5f5f5;
  --card-background: #ffffff;
  --text-color: #333333;
  --shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

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

body {
  background-color: var(--background-color);
  font-family: 'Poppins', sans-serif;
  color: var(--text-color);
  line-height: 1.6;
}

header {
  text-align: center;
  padding: 2rem 1rem;
  background: var(--primary-color);
  color: white;
  margin-bottom: 2rem;
  box-shadow: var(--shadow);
}

h1 {
  color: white;
  font-size: 2.5rem;
  font-weight: 600;
  margin: 0;
  animation: fadeIn 1s ease-in;
}

@keyframes coloranimation {
  0%{color: aqua;}
  25%{color: blue;}
  50%{color: aqua;}
  75%{color: blue;}
  100%{color: aqua;}
}

h2 {
  text-decoration: underline;
  color: black;
}

main {
  display: flex;
  flex-wrap: wrap;
  gap: 2rem;
  justify-content: center;
  padding: 0 1rem;
  max-width: 1400px;
  margin: 0 auto;
}

.inventory-section {
  background-color: var(--card-background);
  padding: 2rem;
  width: 100%;
  max-width: 600px;
  border-radius: 12px;
  box-shadow: var(--shadow);
  transition: transform 0.3s ease;
}

.inventory-section:hover {
  transform: translateY(-5px);
}

.inventory-section2 {
  width: 100%;
  max-width: 600px;
  background-color: var(--card-background);
  padding: 2rem;
  border-radius: 12px;
  box-shadow: var(--shadow);
  transition: transform 0.3s ease;
}

.inventory-section2:hover {
  transform: translateY(-5px);
}

table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  color: var(--text-color);
  margin-top: 1.5rem;
  overflow: hidden;
}

th, td {
  padding: 1rem;
  text-align: left;
  border-bottom: 1px solid #eee;
}

tr {
  transition: background-color 0.3s ease;
}

tr:hover {
  background-color: #f8f9fa;
}

th {
  background-color: var(--primary-color);
  color: white;
  font-weight: 500;
  text-transform: uppercase;
  font-size: 0.9rem;
  letter-spacing: 0.5px;
}

button {
  background-color: var(--primary-color);
  color: white;
  padding: 0.8rem 1.5rem;
  border: none;
  border-radius: 6px;
  cursor: pointer;
  font-weight: 500;
  transition: all 0.3s ease;
  text-transform: uppercase;
  font-size: 0.9rem;
  letter-spacing: 0.5px;
}

.delete-btn {
  background-color: #dc3545;
  padding: 0.5rem 1rem;
  font-size: 0.8rem;
}

button:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
}

button:active {
  transform: translateY(0);
}

footer {
  text-align: center;
  padding: 2rem;
  margin-top: 3rem;
  background: var(--primary-color);
  color: white;
}

#watermark {
  color: rgba(255, 255, 255, 0.9);
  margin: 0.5rem 0;
  font-size: 0.9rem;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(-20px); }
  to { opacity: 1; transform: translateY(0); }
}

@media (max-width: 768px) {
  h1 {
    font-size: 2rem;
  }
  
  main {
    padding: 0 0.5rem;
  }
  
  .inventory-section,
  .inventory-section2 {
    padding: 1.5rem;
  }
  
  th, td {
    padding: 0.75rem;
    font-size: 0.9rem;
  }
}

@media (max-width: 480px) {
  h1 {
    font-size: 1.5rem;
  }
  
  button {
    width: 100%;
    margin: 0.5rem 0;
  }
  
  th, td {
    padding: 0.5rem;
    font-size: 0.8rem;
  }
}