/* AI made part: */

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

body {
  min-height: 100vh;
  font-family: "Segoe UI", system-ui, sans-serif;
  background: linear-gradient(135deg, #1e3a8a 0%, #312e81 100%);
  color: #e0f2fe;
  padding: 20px 12px;
  display: flex;
  justify-content: center;
}

.container {
  background: rgba(30, 41, 59, 0.75);
  backdrop-filter: blur(10px);
  border-radius: 16px;
  padding: 2rem 1.8rem;
  width: 100%;
  max-width: 600px;
  border: 1px solid rgba(165, 180, 252, 0.15);
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.5);
}

.header-description {
  text-align: center;
  margin-bottom: 2rem;
}

.header-description h1 {
  font-size: 2.1rem;
  color: #c7d2fe;
  margin-bottom: 0.6rem;
}

.header-description p {
  font-size: 1.05rem;
  color: #cbd5e1;
  line-height: 1.45;
  opacity: 0.95;
}

h2 {
  font-size: 1.35rem;
  margin: 1.6rem 0 0.9rem;
  color: #e0f2fe;
  font-weight: 500;
}

textarea {
  width: 100%;
  min-height: 120px;
  padding: 14px 16px;
  font-size: 1.05rem;
  line-height: 1.55;
  border: 2px solid rgba(165, 180, 252, 0.2);
  border-radius: 10px;
  background: rgba(15, 23, 42, 0.6);
  color: #f1f5f9;
  font-family: "Consolas", monospace;
  resize: vertical;
  transition: 0.2s;
}

textarea:focus {
  outline: none;
  border-color: #a5b4fc;
  background: rgba(30, 41, 59, 0.85);
  box-shadow: 0 0 0 3px rgba(165, 180, 252, 0.2);
}

textarea::placeholder {
  color: rgba(203, 213, 225, 0.5);
}

button {
  width: 100%;
  padding: 14px;
  margin: 1.8rem 0 2rem;
  font-size: 1.1rem;
  font-weight: 600;
  color: white;
  background: linear-gradient(90deg, #6366f1, #7c3aed);
  border: none;
  border-radius: 10px;
  cursor: pointer;
  transition: all 0.25s;
  box-shadow: 0 5px 18px rgba(99, 102, 241, 0.35);
}

button:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 25px rgba(99, 102, 241, 0.5);
  background: linear-gradient(90deg, #4f46e5, #6d28d9);
}

.comment {
  margin-top: 1.2rem;
  text-align: center;
  font-size: 0.92rem;
  color: #94a3b8;
  line-height: 1.4;
}

.comment small {
  opacity: 0.9;
}

/* For small devices*/
@media (max-width: 480px) {
  .container {
    padding: 1.8rem 1.4rem;
  }
  
  h2 {
    font-size: 1.45rem;
  }
  
  button {
    padding: 13px;
    font-size: 1.05rem;
  }
}