:root {
  --shell-bg: #fbfbfd;
  --card-bg: #fff;
  --text-primary: #1d1d1f;
  --text-secondary: #6e6e73;
  --border: #e8e8ed;
  --accent: #007aff;
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Display", "PingFang SC", sans-serif;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--shell-bg);
  color: var(--text-primary);
}

.section { padding: 16px 18px; }

.topbar {
  display: flex;
  gap: 4px;
  padding: 10px 18px 0;
}
.topbar-link {
  border: none;
  background: none;
  font: inherit;
  font-size: 13px;
  color: var(--accent);
  cursor: pointer;
  padding: 4px 8px;
}

h2 {
  font-size: 26px;
  font-weight: 600;
  letter-spacing: -.3px;
  margin: 0 0 4px;
}

.subtitle { color: var(--text-secondary); font-size: 13px; margin: 0 0 14px; }

.scope-chips { display: flex; gap: 6px; overflow-x: auto; padding-bottom: 4px; }
.scope-chip {
  padding: 6px 14px;
  border-radius: 20px;
  border: 1px solid var(--border);
  font-size: 12px;
  color: var(--text-primary);
  white-space: nowrap;
  cursor: pointer;
}
.scope-chip.active { background: var(--text-primary); color: var(--card-bg); border-color: var(--text-primary); }

.group-label {
  font-size: 11px;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: .4px;
  margin: 14px 0 6px;
}

.dict-card {
  background: var(--card-bg);
  border-radius: 16px;
  padding: 14px 16px;
  box-shadow: 0 1px 4px rgba(0, 0, 0, .05);
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 8px;
  cursor: pointer;
}

.dict-card .chevron { color: #c7c7cc; }

.miss-card { background: #f2f2f7; color: var(--text-secondary); }

input[type="text"], input[type="search"] {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 9px 14px;
  font-size: 14px;
  background: var(--card-bg);
}