.tool-ui {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.n2w-controls {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1rem 1.25rem;
}

.control-group {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  flex: 1;
  min-width: 180px;
}

.control-label {
  font-size: 0.775rem;
  color: var(--text-3);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.n2w-select {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.6rem 0.85rem;
  color: var(--text);
  font-size: 0.9rem;
  outline: none;
  transition: border-color 0.2s;
  cursor: pointer;
}

.n2w-select:focus {
  border-color: var(--accent);
}

.n2w-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.input-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.card-title {
  font-family: 'DM Sans', sans-serif;
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text);
}

.quick-presets {
  display: flex;
  gap: 0.4rem;
  flex-wrap: wrap;
}

.preset-chip {
  background: var(--bg);
  border: 1px solid var(--border);
  color: var(--text-3);
  padding: 0.25rem 0.55rem;
  border-radius: 6px;
  font-size: 0.75rem;
  font-family: 'JetBrains Mono', monospace;
  cursor: pointer;
  transition: all 0.2s;
}

.preset-chip:hover {
  border-color: var(--accent);
  color: var(--text);
}

.n2w-input-field {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.75rem 1rem;
  color: var(--text);
  font-family: 'JetBrains Mono', monospace;
  font-size: 1.25rem;
  outline: none;
  width: 100%;
  transition: border-color 0.2s;
}

.n2w-input-field:focus {
  border-color: var(--accent);
}

.input-error {
  font-size: 0.8rem;
  color: #f87171;
}

.result-card {
  background: var(--bg);
  border: 1px solid var(--border);
}

.result-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.result-title {
  font-size: 0.775rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-3);
  font-weight: 600;
}

.result-output-box {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 1.25rem;
  font-family: 'JetBrains Mono', monospace;
  font-size: 1.15rem;
  font-weight: 500;
  color: var(--success);
  word-break: break-word;
  line-height: 1.6;
  min-height: 80px;
  display: flex;
  align-items: center;
}

.btn-copy {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.45rem 0.8rem;
  font-size: 0.8rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
}

.btn-copy:hover {
  border-color: var(--accent);
  color: var(--accent);
}