html,
body {
  margin: 0;
  padding: 0;
  background: #161620;
  color: #eee;
  font-family: sans-serif;
}

body {
  min-height: 100vh;
}

.tool-shell {
  max-width: 56rem;
  margin: 0 auto;
  padding: 1rem;
}

.tool-card {
  background: #1e1e2b;
  border: 1px solid #444;
  border-radius: 8px;
  padding: 1.2rem;
  margin-bottom: 1.2rem;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.22);
}

.tool-card--header {
  text-align: center;
}

.tool-title {
  margin: 0 0 0.5rem;
  font-size: clamp(1.5rem, 3vw, 2.2rem);
}

.tool-subtitle,
.tool-note {
  margin: 0.5rem 0 0;
  color: rgba(238, 238, 238, 0.78);
  font-size: 0.95rem;
  line-height: 1.55;
}

.tool-layout {
  display: grid;
  gap: 1rem;
}

.tool-field {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.tool-field label {
  font-size: 0.9rem;
  opacity: 0.82;
}

.tool-input,
.tool-select,
.tool-button,
.tool-textarea {
  width: 100%;
  box-sizing: border-box;
  background: #383842;
  color: #fff;
  border: 1px solid #666;
  border-radius: 4px;
  padding: 0.7rem 0.85rem;
  font: inherit;
}

.tool-button {
  cursor: pointer;
  transition: background-color 0.2s ease, border-color 0.2s ease;
}

.tool-button:hover,
.tool-button:focus {
  background: #444;
  border-color: #7b7b7b;
}

.tool-textarea {
  min-height: 16rem;
  resize: vertical;
  line-height: 1.45;
}

.tool-textarea--tall {
  min-height: 24rem;
}

.tool-textarea--mono,
.tool-input--mono {
  font-family: Consolas, "Courier New", monospace;
  font-size: 0.95rem;
}

.tool-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
}

.tool-actions .tool-button,
.tool-actions a.tool-button {
  flex: 1 1 12rem;
  text-align: center;
  text-decoration: none;
}

.tool-result {
  background: #12121a;
}

.tool-status {
  margin: 0 0 0.9rem;
  color: rgba(238, 238, 238, 0.88);
  min-height: 1.5rem;
  font-size: 0.95rem;
}

.tool-message {
  margin-top: 1rem;
  color: rgba(238, 238, 238, 0.9);
  line-height: 1.6;
  word-break: break-word;
}

.tool-message img {
  display: block;
  max-width: min(100%, 20rem);
  margin: 1rem auto 0;
  border-radius: 8px;
}

@media (max-width: 50rem) {
  .tool-shell {
    padding: 0.85rem;
  }

  .tool-card {
    padding: 1rem;
  }

  .tool-textarea {
    min-height: 14rem;
  }

  .tool-textarea--tall {
    min-height: 18rem;
  }
}