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

body {
  font-family: 'Arial', sans-serif;
  background: #0f0f0f;
  color: #fff;
  overflow: hidden;
}

.background {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: url('https://images.unsplash.com/photo-1614854262340-ab1ca7d079c7?ixlib=rb-1.2.1&auto=format&fit=crop&w=1950&q=80') no-repeat center center/cover;
  filter: blur(10px) brightness(0.7);
  z-index: -1;
}

.container {
  max-width: 800px;
  margin: 50px auto;
  padding: 20px;
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  border-radius: 15px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
}

h1 {
  text-align: center;
  font-size: 2.5rem;
  margin-bottom: 20px;
  color: #00ffcc;
  text-shadow: 0 0 10px #00ffcc, 0 0 20px #00ffcc;
}

.form {
  margin-bottom: 20px;
}

input, textarea {
  width: 100%;
  padding: 10px;
  margin-bottom: 10px;
  border: none;
  border-radius: 5px;
  background: rgba(255, 255, 255, 0.1);
  color: #fff;
  font-size: 1rem;
}

textarea {
  resize: vertical;
  min-height: 100px;
}

button {
  width: 100%;
  padding: 10px;
  background: linear-gradient(45deg, #00ffcc, #00b3ff);
  color: #fff;
  border: none;
  border-radius: 5px;
  font-size: 1rem;
  cursor: pointer;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

button:hover {
  transform: translateY(-3px);
  box-shadow: 0 5px 15px rgba(0, 255, 204, 0.3);
}

#notes-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: 15px;
}

.note {
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  padding: 15px;
  border-radius: 10px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.note:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 16px rgba(0, 255, 204, 0.3);
}

.note h3 {
  font-size: 1.2rem;
  margin-bottom: 10px;
  color: #00ffcc;
}

.note p {
  font-size: 1rem;
  color: #ddd;
}

.note button {
  background: #ff4d4d;
  padding: 5px 10px;
  border: none;
  border-radius: 5px;
  cursor: pointer;
  margin-top: 10px;
  transition: background 0.3s ease;
}

.note button:hover {
  background: #ff1a1a;
}