/* 姓名学笔记管理 — 浅色简洁风 */
* { box-sizing: border-box; margin: 0; padding: 0; }
:root {
  --bg: #f6f5f1;
  --card: #ffffff;
  --border: #e0ddd5;
  --text: #1f2024;
  --muted: #6b6c70;
  --primary: #d2691e;
  --primary-soft: #fef0e7;
  --primary-dark: #b8591a;
  --chip-on: #d2691e;
  --shadow: 0 1px 3px rgba(0,0,0,0.06);
  --shadow-hover: 0 2px 6px rgba(0,0,0,0.08);
}

html, body { height: 100%; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "微软雅黑", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  font-size: 14px;
  -webkit-font-smoothing: antialiased;
}

/* ===== header ===== */
header {
  position: sticky; top: 0;
  background: var(--card);
  border-bottom: 1px solid var(--border);
  padding: 12px 24px;
  display: flex; align-items: center; justify-content: space-between;
  z-index: 10;
  height: 57px;
}
.brand { display: flex; align-items: center; gap: 8px; }
.brand h1 { font-size: 17px; font-weight: 600; }
.logo { font-size: 20px; }
.header-actions { display: flex; gap: 8px; }
input[type=search] {
  padding: 7px 12px;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 14px;
  width: 260px;
  background: #fff;
  outline: none;
  font-family: inherit;
}
input[type=search]:focus { border-color: var(--primary); }

button {
  padding: 7px 14px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: #fff;
  cursor: pointer;
  font-size: 13px;
  color: var(--text);
  font-family: inherit;
  transition: all 0.1s;
}
button:hover { background: var(--primary-soft); border-color: var(--primary); color: var(--primary); }
button:active { transform: translateY(1px); }
button.primary { background: var(--primary); color: #fff; border-color: var(--primary); }
button.primary:hover { background: var(--primary-dark); border-color: var(--primary-dark); color: #fff; }
button.ghost { background: transparent; border: none; padding: 4px 8px; color: var(--muted); }
button.ghost:hover { background: var(--primary-soft); color: var(--primary); }
button.ghost.small { font-size: 12px; padding: 2px 6px; }

/* ===== layout ===== */
.layout {
  display: grid;
  grid-template-columns: 260px 1fr;
  height: calc(100vh - 57px);
}

/* ===== sidebar ===== */
aside {
  background: var(--card);
  border-right: 1px solid var(--border);
  display: flex; flex-direction: column;
  overflow: hidden;
}
.sidebar-header {
  padding: 12px 16px;
  display: flex; align-items: center; gap: 8px;
  border-bottom: 1px solid var(--border);
  font-weight: 600;
  font-size: 13px;
}
.sidebar-header > span:first-child { flex: 1; }
.cat-count { color: var(--muted); font-weight: 400; font-size: 12px; }
#catList {
  list-style: none;
  flex: 1;
  overflow-y: auto;
  padding: 8px;
}
.cat-item {
  display: flex; align-items: center; justify-content: space-between;
  padding: 6px 8px;
  border-radius: 6px;
  margin-bottom: 2px;
  font-size: 13px;
  gap: 4px;
  cursor: pointer;
  user-select: none;
}
.cat-item:hover { background: var(--bg); }
.cat-item.active { background: var(--primary-soft); }
.cat-item.active .cat-name { color: var(--primary); font-weight: 500; }
.cat-item label { display: flex; align-items: center; gap: 8px; cursor: pointer; flex: 1; min-width: 0; }
.cat-item input[type=checkbox] { margin: 0; cursor: pointer; flex-shrink: 0; }
.cat-name {
  flex: 1;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.cat-badge {
  color: var(--muted); font-size: 11px;
  background: var(--bg);
  padding: 1px 6px; border-radius: 10px;
  flex-shrink: 0;
}
.cat-item.active .cat-badge { background: #fff; }
.cat-actions { display: flex; gap: 0; opacity: 0; transition: opacity 0.1s; }
.cat-item:hover .cat-actions { opacity: 1; }
.cat-actions button { font-size: 13px; padding: 2px 6px; line-height: 1; }

/* 子分类缩进 (按 depth 递增) */
.cat-item.depth-1 { padding-left: 22px; font-size: 12px; }
.cat-item.depth-2 { padding-left: 36px; font-size: 11.5px; }
.cat-item.depth-3 { padding-left: 50px; font-size: 11px; }
.cat-item.depth-4 { padding-left: 64px; font-size: 11px; }
.cat-item[class*="depth-"] .cat-name {
  color: var(--muted);
  font-weight: normal;
}
.cat-item[class*="depth-"].active .cat-name {
  color: var(--primary);
}
.cat-item[class*="depth-"] .cat-badge {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--muted);
  font-size: 10px;
  padding: 0 5px;
}

/* 新增分类 form */
.add-cat-form {
  padding: 8px 12px;
  background: var(--bg);
  border-bottom: 1px solid var(--border);
  display: flex; flex-direction: column; gap: 6px;
}
.add-cat-form input,
.add-cat-form select {
  width: 100%;
  padding: 6px 8px;
  border: 1px solid var(--border);
  border-radius: 4px;
  font-size: 12px;
  font-family: inherit;
  background: #fff;
  outline: none;
}
.add-cat-form input:focus,
.add-cat-form select:focus { border-color: var(--primary); }
.add-cat-form .form-buttons { display: flex; gap: 6px; }
.add-cat-form button { flex: 1; font-size: 12px; padding: 5px 8px; }
button.small { padding: 5px 10px; font-size: 12px; }

.filter-actions {
  padding: 8px 16px;
  border-top: 1px solid var(--border);
  text-align: right;
}
.api-info {
  padding: 8px 16px;
  border-top: 1px solid var(--border);
  font-size: 11px;
  color: var(--muted);
  display: flex; align-items: center; gap: 6px;
  font-family: ui-monospace, "Cascadia Code", Menlo, monospace;
}
.api-info .dot { font-size: 8px; }
.api-info.ok .dot { color: #27ae60; }
.api-info.err .dot { color: #c0392b; }
#apiUrl { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }

/* ===== main ===== */
main {
  overflow-y: auto;
  padding: 16px 24px 60px;
}
#status {
  color: var(--muted);
  font-size: 12px;
  margin-bottom: 8px;
  padding: 0 4px;
}
.add-note-top {
  width: 100%;
  padding: 10px;
  font-size: 14px;
  margin-bottom: 12px;
}

/* ===== note card ===== */
.note-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 12px 16px;
  margin-bottom: 12px;
  box-shadow: var(--shadow);
  transition: box-shadow 0.1s;
}
.note-card:hover { box-shadow: var(--shadow-hover); }
.note-header {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 6px;
  font-size: 11px;
  color: var(--muted);
}
.note-id {
  font-family: ui-monospace, "Cascadia Code", Menlo, monospace;
  font-size: 10px;
}
.note-content {
  width: 100%;
  border: 1px solid transparent;
  border-radius: 4px;
  padding: 8px 10px;
  font: inherit;
  resize: vertical;
  background: transparent;
  color: var(--text);
  line-height: 1.7;
  min-height: 60px;
  font-family: inherit;
  outline: none;
  transition: border-color 0.1s, background 0.1s;
}
.note-content:hover { border-color: var(--border); }
.note-content:focus { border-color: var(--primary); background: #fff; }

.note-cats { display: flex; flex-wrap: wrap; gap: 4px; margin-top: 10px; }
.chip {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 12px;
  background: var(--bg);
  border: 1px solid var(--border);
  font-size: 12px;
  cursor: pointer;
  user-select: none;
  color: var(--muted);
  transition: all 0.1s;
}
.chip:hover { border-color: var(--primary); color: var(--primary); }
.chip.on {
  background: var(--chip-on);
  color: #fff;
  border-color: var(--chip-on);
}
.chip.on:hover { background: var(--primary-dark); border-color: var(--primary-dark); color: #fff; }

.empty, .error {
  text-align: center;
  padding: 60px 20px;
  color: var(--muted);
  font-size: 14px;
}
.error { color: #c0392b; }
.error code {
  display: block;
  background: #fff;
  padding: 8px 12px;
  margin-top: 12px;
  border-radius: 4px;
  font-size: 12px;
  text-align: left;
  border: 1px solid var(--border);
}

/* mobile: 简化 */
@media (max-width: 720px) {
  .layout { grid-template-columns: 1fr; }
  aside { display: none; }
  input[type=search] { width: 140px; }
  header h1 { font-size: 15px; }
}

/* ===== login page ===== */
.login-page {
  position: fixed; inset: 0;
  display: flex; align-items: center; justify-content: center;
  background: linear-gradient(135deg, #fef0e7 0%, #f6f5f1 100%);
  z-index: 100;
}
.login-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 40px 36px;
  width: 100%;
  max-width: 360px;
  box-shadow: 0 4px 24px rgba(0,0,0,0.08);
}
.login-card h1 {
  font-size: 22px;
  text-align: center;
  margin-bottom: 4px;
}
.login-subtitle {
  text-align: center;
  color: var(--muted);
  font-size: 13px;
  margin-bottom: 24px;
}
.form-group {
  margin-bottom: 14px;
}
.form-group label {
  display: block;
  font-size: 12px;
  color: var(--muted);
  margin-bottom: 4px;
}
.form-group input {
  width: 100%;
  padding: 9px 12px;
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 14px;
  font-family: inherit;
  background: #fff;
  outline: none;
  transition: border-color 0.1s;
}
.form-group input:focus { border-color: var(--primary); }
#loginBtn {
  width: 100%;
  padding: 10px;
  font-size: 14px;
  margin-top: 6px;
}
#loginBtn:disabled { opacity: 0.6; cursor: not-allowed; }
.login-error {
  color: #c0392b;
  font-size: 13px;
  margin-top: 12px;
  min-height: 18px;
  text-align: center;
}

.hidden { display: none !important; }

/* user badge */
.user-badge {
  display: inline-block;
  margin-left: 8px;
  padding: 3px 10px;
  background: var(--primary-soft);
  color: var(--primary);
  border-radius: 12px;
  font-size: 12px;
  font-weight: 500;
}

/* 拖拽排序 */
.cat-item[draggable="true"] {
  cursor: grab;
}
.cat-item.dragging {
  opacity: 0.4;
}
.cat-item.drop-before {
  box-shadow: 0 -2px 0 0 var(--primary);
}
.cat-item.drop-after {
  box-shadow: 0 2px 0 0 var(--primary);
}
.drag-handle {
  color: var(--muted);
  cursor: grab;
  font-size: 12px;
  letter-spacing: -2px;
  user-select: none;
  opacity: 0;
  transition: opacity 0.1s;
  flex-shrink: 0;
}
.cat-item:hover .drag-handle { opacity: 0.6; }
.cat-item.dragging .drag-handle,
.cat-item:hover .drag-handle { opacity: 1; }

/* 展开/收拢三角 */
.toggle {
  display: inline-block;
  width: 14px;
  font-size: 9px;
  color: var(--muted);
  user-select: none;
  flex-shrink: 0;
  cursor: pointer;
  text-align: center;
  transition: transform 0.1s;
}
.toggle.no-children {
  visibility: hidden;
  cursor: default;
}
.cat-item.collapsed > .toggle {
  /* 视觉上让用户知道已收拢 */
}
.cat-item.has-children > .toggle:hover {
  color: var(--primary);
}