style.css

* { box-sizing: border-box; }
body {
  font-family: -apple-system, "Segoe UI", "Microsoft JhengHei", sans-serif;
  margin: 0;
  background: #f4f6f8;
  color: #222;
}
header {
  padding: 16px 24px;
  background: #1f2937;
  color: #fff;
}
header h1 { margin: 0 0 4px; font-size: 20px; }
header .hint { margin: 0; font-size: 13px; opacity: 0.8; }
header code { background: rgba(255,255,255,.15); padding: 2px 6px; border-radius: 4px; }

.top-bar {
  background: #fff;
  padding: 14px 18px;
  margin: 16px 16px 0;
  border-radius: 8px;
  box-shadow: 0 1px 3px rgba(0,0,0,.08);
  display: flex;
  flex-wrap: wrap;
  gap: 16px 24px;
  align-items: center;
}
#add-form {
  display: grid;
  grid-template-columns: minmax(140px, 1fr) minmax(140px, 1fr);
  grid-template-rows: auto auto;
  gap: 8px;
  flex: 1 1 480px;
}
#add-form input {
  padding: 7px 10px;
  border: 1px solid #d1d5db;
  border-radius: 4px;
  font-size: 14px;
  min-width: 0;
}
#add-form .btn-group {
  grid-column: 1 / -1;
  display: flex;
  gap: 8px;
}
#add-form button {
  flex: 1;
  padding: 7px 12px;
  border: none;
  border-radius: 4px;
  color: #fff;
  cursor: pointer;
  font-size: 13px;
  font-weight: 500;
}
#add-form button[data-method="jquery"] { background: #2563eb; }
#add-form button[data-method="fetch"]  { background: #059669; }
#add-form button[data-method="axios"]  { background: #7c3aed; }
#add-form button[data-method="ky"]     { background: #0891b2; }
#add-form button[data-method="ofetch"] { background: #ea580c; }
.sync-bar {
  display: flex;
  justify-content: center;
  margin: 12px 16px 0;
}
.auto-sync {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  color: #374151;
  cursor: pointer;
  user-select: none;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 16px;
  padding: 16px;
}
.col {
  background: #fff;
  border-radius: 8px;
  padding: 14px;
  box-shadow: 0 1px 3px rgba(0,0,0,.08);
  display: flex;
  flex-direction: column;
  min-height: 500px;
}
.col-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 2px solid #e5e7eb;
  padding-bottom: 6px;
  margin-bottom: 10px;
}
.col-header h2 { margin: 0; font-size: 16px; }
.col-header .reload {
  background: transparent;
  border: 1px solid #d1d5db;
  border-radius: 4px;
  padding: 4px 8px;
  cursor: pointer;
  font-size: 14px;
}
.col-header .reload:hover { background: #f3f4f6; }
[data-col="jquery"] h2 { color: #2563eb; }
[data-col="fetch"]  h2 { color: #059669; }
[data-col="axios"]  h2 { color: #7c3aed; }
[data-col="ky"]     h2 { color: #0891b2; }
[data-col="ofetch"] h2 { color: #ea580c; }

.add-form { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 8px; }
.add-form input {
  flex: 1 1 100px;
  padding: 6px 8px;
  border: 1px solid #d1d5db;
  border-radius: 4px;
  font-size: 13px;
}
.add-form button {
  padding: 6px 10px;
  border: none;
  border-radius: 4px;
  background: #374151;
  color: #fff;
  cursor: pointer;
  font-size: 13px;
}
.add-form button:hover { background: #111827; }

.book-list {
  list-style: none;
  padding: 0;
  margin: 0 0 8px;
  flex: 1;
  overflow-y: auto;
}
.book-list li {
  background: #f9fafb;
  border: 1px solid #e5e7eb;
  border-radius: 6px;
  padding: 8px 10px;
  margin-bottom: 6px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 6px;
}
.book-list .info { flex: 1; min-width: 0; }
.book-list .title { font-weight: 600; font-size: 14px; }
.book-list .author { font-size: 12px; color: #6b7280; }
.book-list .actions { display: flex; gap: 4px; }
.book-list .actions button {
  border: none;
  background: transparent;
  cursor: pointer;
  font-size: 14px;
  padding: 2px 4px;
}
.book-list .actions button:hover { background: #e5e7eb; border-radius: 4px; }

.log {
  background: #111827;
  color: #d1fae5;
  font-size: 11px;
  padding: 8px;
  border-radius: 4px;
  margin: 0;
  max-height: 80px;
  overflow-y: auto;
  white-space: pre-wrap;
}