:root {
  --bg: #0f1115;
  --panel: #171a21;
  --border: #2a2e38;
  --text: #e8e9ed;
  --muted: #9aa0ac;
  --accent: #7c5cff;
  --accent-hover: #6a4bef;
  --danger: #ff5c6c;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
}

.app {
  max-width: 640px;
  margin: 0 auto;
  padding: 48px 20px 80px;
}

.app-header {
  text-align: center;
  margin-bottom: 32px;
}

.logo {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  margin-bottom: 8px;
}

.logo-mark {
  width: 40px;
  height: 40px;
}

.app-header h1 {
  margin: 0;
  font-size: 2rem;
  letter-spacing: -0.02em;
}

.tagline {
  margin: 0;
  color: var(--muted);
}

.panel {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 24px;
}

.list-section h2,
.result-header h2 {
  margin: 0 0 16px;
  font-size: 1.1rem;
}

.add-form {
  display: flex;
  gap: 8px;
  margin-bottom: 16px;
}

.add-form input {
  flex: 1;
  padding: 10px 12px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: #0f1115;
  color: var(--text);
  font-size: 0.95rem;
}

.add-form input:focus {
  outline: 2px solid var(--accent);
  outline-offset: 1px;
}

button {
  cursor: pointer;
  border: none;
  border-radius: 8px;
  padding: 10px 16px;
  font-size: 0.95rem;
  font-weight: 600;
  background: var(--accent);
  color: white;
  transition: background 0.15s ease;
}

button:hover:not(:disabled) {
  background: var(--accent-hover);
}

button:disabled {
  background: #383c47;
  color: var(--muted);
  cursor: not-allowed;
}

.item-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.item-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  padding: 10px 12px;
  background: #0f1115;
  border: 1px solid var(--border);
  border-radius: 8px;
}

.item-row span {
  word-break: break-word;
}

.item-row button {
  background: transparent;
  color: var(--danger);
  padding: 4px 8px;
  font-size: 1rem;
  line-height: 1;
}

.item-row button:hover {
  background: rgba(255, 92, 108, 0.1);
}

.empty-state {
  color: var(--muted);
  font-size: 0.9rem;
  margin: 4px 0 0;
}

.generate-section {
  margin-top: 24px;
  padding-top: 20px;
  border-top: 1px solid var(--border);
}

.generate-row {
  display: flex;
  align-items: center;
  gap: 16px;
}

#generate-btn {
  flex: 1;
  padding: 12px;
  font-size: 1rem;
}

.auto-toggle {
  display: flex;
  align-items: center;
  gap: 6px;
  color: var(--muted);
  font-size: 0.85rem;
  white-space: nowrap;
  cursor: pointer;
}

.auto-toggle input {
  cursor: pointer;
}

.error-box {
  margin-top: 12px;
  padding: 10px 12px;
  border-radius: 8px;
  background: rgba(255, 92, 108, 0.1);
  border: 1px solid rgba(255, 92, 108, 0.4);
  color: var(--danger);
  font-size: 0.9rem;
}

.result-section {
  margin-top: 24px;
  padding-top: 20px;
  border-top: 1px solid var(--border);
}

.result-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
}

.result-header h2 {
  margin: 0;
}

.result-header button {
  padding: 6px 12px;
  font-size: 0.85rem;
}

#result-output {
  width: 100%;
  min-height: 180px;
  padding: 12px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: #0f1115;
  color: var(--text);
  font-family: inherit;
  font-size: 0.95rem;
  resize: vertical;
}

.vendor-section {
  margin-top: 16px;
}

.vendor-label {
  margin: 0 0 8px;
  font-size: 0.85rem;
  color: var(--muted);
}

.vendor-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.vendor-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text);
  padding: 8px 14px;
  font-size: 0.9rem;
  font-weight: 500;
}

.vendor-icon {
  width: 16px;
  height: 16px;
  border-radius: 3px;
  flex-shrink: 0;
}

.vendor-btn:hover {
  background: #20232c;
  border-color: var(--accent);
}

.vendor-note {
  margin: 8px 0 0;
  font-size: 0.78rem;
  color: var(--muted);
}

.vendor-note-warning {
  color: var(--danger);
}