:root {
  --color-bg-light: #fff0f6;
  --color-text-light: #3b1f2b;
  --color-accent-light: #b34a2f;
  --color-button-bg-light: #f6c6c1;
  --color-button-hover-light: #f7a6a2;
}

body {
  font-family: 'M PLUS Rounded 1c', 'Comic Neue', cursive, sans-serif;
  background-color: var(--color-bg-light);
  color: var(--color-text-light);
  padding: 2rem;
  max-width: 600px;
  margin: auto;
  line-height: 1.6;
  box-sizing: border-box;
}

h1 {
  text-align: center;
  font-weight: 700;
  font-size: 2.4rem;
  color: var(--color-accent-light);
  margin-bottom: 2rem;
}

form {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin-top: 2rem;
  background-color: rgba(255, 255, 255, 0.8);
  padding: 1.5rem;
  border-radius: 20px;
  box-shadow: 0 8px 16px rgba(0,0,0,0.1);
}

input[type="url"] {
  padding: 0.8rem;
  font-size: 1.1rem;
  border: 2px solid var(--color-accent-light);
  border-radius: 16px;
  width: 100%;
  box-sizing: border-box;
  transition: all 0.3s ease;
}

input::placeholder {
  color: #a66a5a;
  font-style: italic;
}

input:focus {
  border-color: var(--color-button-bg-light);
  background-color: #fff4f6;
  outline: none;
  box-shadow: 0 0 0 3px rgba(179,74,47,0.2);
}

button {
  padding: 0.85rem 1.5rem;
  font-size: 1.1rem;
  background-color: var(--color-button-bg-light);
  color: var(--color-accent-light);
  border: none;
  border-radius: 20px;
  cursor: pointer;
  font-weight: 700;
  box-shadow: 1px 4px 8px rgba(179,74,47,0.5);
  transition: all 0.3s ease;
  width: 100%;
}

button:hover {
  background-color: var(--color-button-hover-light);
  color: white;
  transform: translateY(-2px);
  box-shadow: 1px 6px 12px rgba(179,74,47,0.6);
}

.secondary-button {
  background-color: transparent;
  color: var(--color-accent-light);
  border: 2px dashed var(--color-accent-light);
  box-shadow: none;
}

.secondary-button:hover {
  background-color: #ffe9ec;
  color: var(--color-accent-light);
  transform: translateY(0);
  box-shadow: none;
}

p {
  margin-top: 1.8rem;
  font-size: 1.15rem;
  background-color: #ffe4e6;
  padding: 1.1rem;
  border-left: 10px solid var(--color-accent-light);
  border-radius: 10px;
  word-break: break-word;
  box-shadow: 0 4px 8px rgba(0,0,0,0.05);
}

#copyButton {
  margin-top: 0.7rem;
  padding: 0.5rem 1rem;
  font-size: 0.95rem;
  border-radius: 12px;
  width: auto;
  display: inline-block;
  box-shadow: 0 2px 4px rgba(179,74,47,0.3);
}

#copyMessage {
  margin-left: 1em;
  color: green;
  font-weight: bold;
  font-size: 0.9em;
}

a {
  color: var(--color-accent-light);
  text-decoration: none;
  font-weight: bold;
}

a:hover {
  text-decoration: underline;
}

footer {
  text-align: center;
  margin-top: 3rem;
  color: var(--color-accent-light);
  font-size: 0.9rem;
}

@media (prefers-color-scheme: dark) {
  body { background-color: #1b1b1b; color: #f0e9e0; }
  h1 { color: #f2c9b3; text-shadow: 1px 1px 0 #392f2a; }
  form { background-color: rgba(27,27,27,0.8); box-shadow: 0 8px 16px rgba(0,0,0,0.3); }
  input { border-color: #f2c9b3; background-color: #2a2723; color: #f0e9e0; }
  input::placeholder { color: #8c7f75; }
  input:focus { border-color: #b75a42; background-color: #3a372f; box-shadow: 0 0 0 3px rgba(242,201,179,0.2); }
  button { background-color: #b75a42; color: #1b1b1b; box-shadow: 1px 4px 8px rgba(242,201,179,0.5); }
  button:hover { background-color: #d1734f; box-shadow: 1px 6px 12px rgba(242,201,179,0.6); }
  .secondary-button { border-color: #f2c9b3; color: #f2c9b3; }
  .secondary-button:hover { background-color: #2f2f2f; }
  p { background-color: #4b3f3b; border-left-color: #f2c9b3; color: #f0e9e0; box-shadow: 0 4px 8px rgba(0,0,0,0.2); }
  #copyButton { box-shadow: 0 2px 4px rgba(242,201,179,0.3); }
  a { color: #f2c9b3; }
  footer { color: #f2c9b3; }
}

@media (max-width: 768px) {
  body { padding: 1rem; }
  h1 { font-size: 2rem; }
  form { padding: 1rem; }
  button { padding: 0.75rem 1rem; font-size: 1rem; }
  p { font-size: 1rem; padding: 0.8rem; }
}