* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  background: #f7f7f9;
  color: #111;
}

main {
  max-width: 860px;
  margin: 0 auto;
  padding: 2rem 1.25rem 4rem;
}

h1 { margin: 0 0 0.25rem; font-size: 1.75rem; }
h2 { font-size: 1.1rem; margin-top: 2.5rem; }
.sub { color: #555; margin: 0 0 1.5rem; }
code { background: #eee; padding: 0.1em 0.35em; border-radius: 3px; }

#search-form {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 1rem;
}
#search-form input {
  flex: 1;
  padding: 0.6rem 0.75rem;
  font-size: 1rem;
  border: 1px solid #ccc;
  border-radius: 6px;
  background: #fff;
}
#search-form button {
  padding: 0.6rem 1rem;
  font-size: 1rem;
  border: 0;
  background: #2563eb;
  color: #fff;
  border-radius: 6px;
  cursor: pointer;
}
#search-form button:hover { background: #1e4fc9; }

.status {
  background: #fff8e1;
  border: 1px solid #f3d477;
  padding: 0.75rem 1rem;
  border-radius: 6px;
  margin-bottom: 1rem;
}

#chart-wrap {
  background: #fff;
  border: 1px solid #e5e5e8;
  border-radius: 8px;
  padding: 1rem;
}

#tracked-list {
  list-style: none;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}
#tracked-list li {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  background: #fff;
  border: 1px solid #e5e5e8;
  border-radius: 6px;
  padding: 0.35rem 0.6rem;
}
.kw-btn {
  background: transparent;
  border: 0;
  color: #2563eb;
  font-weight: 600;
  cursor: pointer;
  padding: 0;
  font-size: 0.95rem;
}
.meta { color: #666; font-size: 0.85rem; }