* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  width: 360px;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: #0f0f0f;
  color: #e0e0e0;
  font-size: 13px;
  line-height: 1.5;
}

.header {
  padding: 16px 16px 12px;
  border-bottom: 1px solid #1e1e1e;
  background: linear-gradient(135deg, #0f0f0f 0%, #1a1a2e 100%);
}

.header-brand {
  display: flex;
  align-items: center;
  gap: 8px;
}

.header-icon {
  width: 28px;
  height: 28px;
}

.header-brand h1 {
  font-size: 18px;
  font-weight: 700;
  color: #ffffff;
  letter-spacing: -0.3px;
}

.version {
  font-size: 10px;
  font-weight: 500;
  color: #666;
  background: #1a1a1a;
  padding: 2px 6px;
  border-radius: 4px;
  margin-left: 4px;
}

.header-tagline {
  margin-top: 4px;
  font-size: 11px;
  color: #666;
}

.stats {
  display: flex;
  gap: 12px;
  padding: 12px 16px;
  border-bottom: 1px solid #1e1e1e;
}

.stat-card {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 10px;
  background: #141414;
  border-radius: 8px;
  border: 1px solid #1e1e1e;
}

.stat-number {
  font-size: 22px;
  font-weight: 700;
  color: #fff;
}

.stat-label {
  font-size: 10px;
  color: #666;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-top: 2px;
}

.section {
  padding: 12px 16px;
}

.section-title {
  font-size: 11px;
  font-weight: 600;
  color: #666;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  margin-bottom: 8px;
}

.keyword-form {
  display: flex;
  gap: 6px;
  margin-bottom: 8px;
}

.keyword-form input {
  flex: 1;
  padding: 7px 10px;
  background: #141414;
  border: 1px solid #2a2a2a;
  border-radius: 6px;
  color: #e0e0e0;
  font-size: 12px;
  outline: none;
  transition: border-color 0.15s;
}

.keyword-form input:focus {
  border-color: #4a9eff;
}

.keyword-form input::placeholder {
  color: #444;
}

.keyword-form button {
  padding: 7px 14px;
  background: #4a9eff;
  color: #fff;
  border: none;
  border-radius: 6px;
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.15s;
}

.keyword-form button:hover {
  background: #3a8eef;
}

.error-msg {
  padding: 6px 10px;
  background: #2a1515;
  border: 1px solid #4a2020;
  border-radius: 6px;
  color: #ff6b6b;
  font-size: 11px;
  margin-bottom: 8px;
}

.keyword-list {
  list-style: none;
  max-height: 240px;
  overflow-y: auto;
}

.keyword-list::-webkit-scrollbar {
  width: 4px;
}

.keyword-list::-webkit-scrollbar-track {
  background: transparent;
}

.keyword-list::-webkit-scrollbar-thumb {
  background: #333;
  border-radius: 4px;
}

.keyword-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 6px 10px;
  border-radius: 6px;
  transition: background 0.1s;
}

.keyword-item:hover {
  background: #1a1a1a;
}

.keyword-label {
  font-family: "SF Mono", "Fira Code", "Consolas", monospace;
  font-size: 12px;
  color: #ccc;
}

.keyword-remove {
  width: 22px;
  height: 22px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: none;
  color: #555;
  font-size: 16px;
  cursor: pointer;
  border-radius: 4px;
  transition: all 0.1s;
}

.keyword-remove:hover {
  background: #2a1515;
  color: #ff6b6b;
}

.empty-state {
  text-align: center;
  padding: 16px;
  color: #444;
  font-size: 12px;
}

.footer {
  padding: 12px 16px;
  border-top: 1px solid #1e1e1e;
}

.results-btn {
  display: block;
  text-align: center;
  padding: 10px;
  background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
  color: #4a9eff;
  text-decoration: none;
  border-radius: 8px;
  font-size: 13px;
  font-weight: 600;
  border: 1px solid #1e2d4a;
  transition: all 0.15s;
}

.results-btn:hover {
  background: linear-gradient(135deg, #1e2040 0%, #1a2848 100%);
  border-color: #2a4070;
}