:root {
  --primary-color: #002F6C;
  --text-color: #ffffff;
  --link-color: #8097B6;
  --body-bg-color: #000000;
  --container-bg-color: #111111;
  --box-bg-color: #222222;
  --box-bg-color2: #333333;

  --font-size: 16px;
  --padding: 32px;
  --margin: 8px;
  --border: 2px solid #333333;
  --border-radius: 32px;
  --gap: 8px;
}

body {
  background-color: var(--body-bg-color);
  color: var(--text-color);
  font-family: Arial, sans-serif;
  display: flex;
  justify-content: center;
  align-items: center;
  padding: var(--padding);
  margin: 0;
  text-align: center;
  box-sizing: border-box;
  height: 100%;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;

}

.container {
  background: linear-gradient(135deg, #000000, #222222);
  padding: var(--padding);
  border-radius: var(--border-radius);
  max-width: 500px;
  width: 100%;
  box-sizing: border-box;
}

h1.header {
  display: block;
  font-size: calc(var(--font-size) * 2);
  margin: var(--margin);
  font-weight: bold;
}

h2.header {
  display: block;
  font-size: calc(var(--font-size) * 1.5);
  margin: var(--margin);
  font-weight: bold;
}

.input-row {
  display: flex;
  flex-direction: column;
  gap: var(--gap);
  margin-bottom: var(--margin);
}

.input-row textarea {
  width: 100%;
  padding: calc(var(--padding) * 0.6);
  background: linear-gradient(135deg, #111111, #333333);
  border: var(--border);
  border-radius: var(--border-radius);
  color: var(--text-color);
  font-size: var(--font-size);
  box-sizing: border-box;
  resize: none;
  overflow: hidden;
}

.container output {
  display: block;
  width: 100%;
  min-height: 100px;
  background: linear-gradient(135deg, #111111, #333333);
  border: var(--border);
  border-radius: var(--border-radius);
  padding: var(--padding);
  box-sizing: border-box;
  margin-top: var(--margin);
  word-break: break-word;
  white-space: pre-wrap;
  text-align: left;
}

.button-row {
  display: flex;
  flex-direction: column;
  gap: var(--gap);
  margin: var(--margin) 0;
}

.button {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: calc(var(--padding) * 0.5) var(--padding);
  background: linear-gradient(135deg, #222222, #444444);
  color: var(--text-color);
  border: var(--border);
  border-radius: var(--border-radius);
  text-decoration: none;
  font-size: var(--font-size);
  transition: transform 0.2s ease;
}

.button:hover {
  background: linear-gradient(135deg, #001836, #0046a2);
  transform: scale(1.05);
  cursor: pointer;
}

.notice {
  margin-top: var(--margin);
  font-size: var(--font-size);
}

#open-source,
#chat-control {
  color: var(--link-color);
}



/* Mobile */

@media screen and (max-width: 480px) {
  body {
    padding: calc(var(--padding) * 0.4);
  }

  .container {
    padding: calc(var(--padding) * 0.4);
    border-radius: calc(var(--border-radius) * 0.5);
    background: linear-gradient(90deg, #000000, #222222);
  }

  .container output {
    background: linear-gradient(90deg, #111111, #333333);
  }

  h1.header {
    font-size: calc(var(--font-size) * 1.5);
  }

  .input-row textarea {
    background: linear-gradient(90deg, #111111, #333333);
  }

  .button-row {
    width: 100%;
  }

  .button {
    width: 100%;
    background: linear-gradient(90deg, #222222, #444444);
  }

  .button:hover {
    background: linear-gradient(90deg, #001836, #0046a2);
  }

  textarea.input,
  textarea.password,
  textarea.password2,
  .button,
  output.output {
    border-radius: calc(var(--border-radius) * 0.5);  
    font-size: calc(var(--font-size) * 0.75);
    padding: calc(var(--padding) * 0.4);
  }

  .notice {
    font-size: calc(var(--font-size) * 0.75)
  }
}