:root {
  --bg: #f6f7f9;
  --panel: #ffffff;
  --border: #e5e7eb;
  --text: #111827;
  --muted: #6b7280;
  --accent: #4f46e5;
  --accent-soft: #eef2ff;
  --danger: #dc2626;
  --radius: 10px;
  --shadow: 0 10px 30px rgba(17, 24, 39, 0.12);
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  height: 100%;
}

body {
  font: 14px/1.55 -apple-system, BlinkMacSystemFont, "Segoe UI", "Microsoft YaHei", sans-serif;
  color: var(--text);
  background: var(--bg);
}

.hidden { display: none !important; }
.muted { color: var(--muted); }
.small { font-size: 12px; }
.spacer { flex: 1; }

button, input, textarea, select {
  font: inherit;
  color: inherit;
}

.btn {
  border: 1px solid var(--border);
  background: var(--panel);
  border-radius: 8px;
  padding: 7px 14px;
  cursor: pointer;
  white-space: nowrap;
}
.btn:hover { border-color: #c7cbd3; background: #fafafa; }
.btn.primary {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}
.btn.primary:hover { background: #4338ca; }
.btn.danger { color: var(--danger); border-color: #fecaca; }
.btn.danger:hover { background: #fef2f2; }
.btn.ghost { border-color: transparent; background: transparent; color: var(--muted); }
.btn.block { width: 100%; }

/* ---------- login ---------- */
.login {
  height: 100%;
  display: grid;
  place-items: center;
  padding: 24px;
}
.login-card {
  width: 340px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 28px;
  box-shadow: var(--shadow);
}
.login-card h1 { margin: 0 0 4px; font-size: 22px; }
.login-card p { margin: 0 0 18px; }
.login-card input {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: 8px;
  margin-bottom: 12px;
  outline: none;
}
.login-card input:focus { border-color: var(--accent); }
.error { color: var(--danger); min-height: 20px; margin: 10px 0 0; font-size: 13px; }

/* ---------- shell ---------- */
.app {
  height: 100%;
  display: flex;
  flex-direction: column;
}

.topbar {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 18px;
  background: var(--panel);
  border-bottom: 1px solid var(--border);
}
.brand { font-weight: 700; font-size: 16px; letter-spacing: 0.3px; }
.search {
  flex: 1;
  max-width: 620px;
  padding: 9px 14px;
  border: 1px solid var(--border);
  border-radius: 9px;
  background: var(--bg);
  outline: none;
}
.search:focus { border-color: var(--accent); background: #fff; }
.top-actions { display: flex; gap: 8px; margin-left: auto; }

.layout {
  flex: 1;
  display: grid;
  grid-template-columns: 230px minmax(0, 1fr);
  min-height: 0;
}

.sidebar {
  border-right: 1px solid var(--border);
  background: var(--panel);
  padding: 14px 10px;
  overflow-y: auto;
}
.side-title {
  font-size: 12px;
  color: var(--muted);
  padding: 14px 10px 6px;
  letter-spacing: 0.5px;
}
.side-item {
  display: flex;
  width: 100%;
  justify-content: space-between;
  gap: 8px;
  padding: 8px 10px;
  margin: 1px 0;
  border: none;
  background: transparent;
  border-radius: 8px;
  cursor: pointer;
  text-align: left;
  color: #374151;
}
.side-item:hover { background: #f3f4f6; }
.side-item.active { background: var(--accent-soft); color: var(--accent); font-weight: 600; }
.side-item span { color: var(--muted); font-weight: 400; font-size: 12px; }

.content { min-height: 0; overflow-y: auto; padding: 16px 20px 60px; }

.list { display: flex; flex-direction: column; gap: 10px; max-width: 920px; }

.item {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  padding: 14px 16px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  cursor: pointer;
  transition: border-color 0.12s, box-shadow 0.12s;
}
.item:hover { border-color: #c7cbd3; }
.item.active { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft); }

.star {
  border: none;
  background: transparent;
  cursor: pointer;
  font-size: 17px;
  line-height: 1.2;
  color: #d1d5db;
  padding: 2px 0 0;
}
.star.on { color: #f59e0b; }

.item-main { flex: 1; min-width: 0; }
.item-main h3 {
  margin: 0 0 3px;
  font-size: 15px;
  font-weight: 600;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.item-main .desc {
  margin: 0 0 8px;
  color: var(--muted);
  font-size: 13px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.meta { display: flex; flex-wrap: wrap; gap: 6px; align-items: center; }

.preview-box { margin: 8px 0 10px; }
.preview {
  white-space: pre-wrap;
  word-break: break-word;
  font: 12.5px/1.65 "Cascadia Code", Consolas, "Microsoft YaHei", monospace;
  color: #374151;
  background: #f9fafb;
  border: 1px solid #eef0f3;
  border-radius: 8px;
  padding: 9px 11px;
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 10;
  overflow: hidden;
}
.item.expanded .preview {
  display: block;
  -webkit-line-clamp: unset;
  max-height: none;
}
.more {
  display: none;
  margin-top: 5px;
  padding: 0 2px;
  border: none;
  background: none;
  color: var(--accent);
  font-size: 12px;
  cursor: pointer;
}
.item.has-more .more { display: inline-block; }
.tag {
  font-size: 12px;
  color: #4b5563;
  background: #f3f4f6;
  border-radius: 999px;
  padding: 1px 9px;
}
.dim { color: var(--muted); font-size: 12px; }

.item-actions { display: flex; gap: 2px; opacity: 0; transition: opacity 0.12s; }
.item:hover .item-actions { opacity: 1; }
.icon {
  border: 1px solid transparent;
  background: transparent;
  border-radius: 7px;
  width: 30px;
  height: 30px;
  cursor: pointer;
  color: var(--muted);
  font-size: 15px;
}
.icon:hover { background: #f3f4f6; color: var(--text); }

.empty { text-align: center; padding: 80px 20px; }
.empty h2 { margin: 0 0 6px; font-size: 17px; }

/* ---------- drawer ---------- */
.mask {
  position: fixed;
  inset: 0;
  background: rgba(17, 24, 39, 0.35);
  z-index: 20;
}

.drawer {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  width: min(600px, 100vw);
  background: var(--panel);
  z-index: 30;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow);
}
.drawer-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
}
.drawer-head h2 { margin: 0; font-size: 16px; }
.drawer-body {
  flex: 1;
  overflow-y: auto;
  padding: 18px 20px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.drawer-body label { display: flex; flex-direction: column; gap: 6px; font-size: 13px; color: #374151; }
.drawer-body input,
.drawer-body select,
.drawer-body textarea {
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 9px 11px;
  outline: none;
  background: #fff;
  width: 100%;
}
.drawer-body textarea { resize: vertical; font-family: "Cascadia Code", Consolas, monospace; font-size: 13px; line-height: 1.6; }
.drawer-body input:focus,
.drawer-body select:focus,
.drawer-body textarea:focus { border-color: var(--accent); }
.row { display: flex; gap: 12px; }
.row label { flex: 0 0 160px; }
.row label.grow { flex: 1; }
.vars { font-size: 12px; min-height: 18px; }
.vars code {
  background: var(--accent-soft);
  color: var(--accent);
  border-radius: 5px;
  padding: 1px 6px;
  margin-right: 4px;
}
.drawer-foot {
  display: flex;
  gap: 10px;
  align-items: center;
  padding: 14px 20px;
  border-top: 1px solid var(--border);
}
.icon-btn {
  border: none;
  background: transparent;
  font-size: 22px;
  line-height: 1;
  cursor: pointer;
  color: var(--muted);
}

/* ---------- modal ---------- */
.modal {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: min(640px, calc(100vw - 32px));
  max-height: calc(100vh - 80px);
  overflow-y: auto;
  background: var(--panel);
  border-radius: 14px;
  padding: 22px;
  z-index: 40;
  box-shadow: var(--shadow);
}
.modal.wide { width: min(820px, calc(100vw - 32px)); }
.modal h2 { margin: 0 0 16px; font-size: 16px; }
.fields { display: flex; flex-direction: column; gap: 12px; }
.fields label { display: flex; flex-direction: column; gap: 5px; font-size: 13px; color: #374151; }
.fields span { color: var(--accent); font-weight: 600; }
.fields textarea {
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 9px 11px;
  outline: none;
  resize: vertical;
  font-family: "Cascadia Code", Consolas, monospace;
  font-size: 13px;
  min-height: 40px;
}
.fields textarea:focus { border-color: var(--accent); }
.modal-foot { display: flex; align-items: center; gap: 10px; margin-top: 18px; }

.history-list { display: flex; flex-direction: column; gap: 10px; }
.history-item {
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 12px 14px;
}
.history-head { display: flex; gap: 10px; align-items: center; margin-bottom: 6px; }
.history-head strong { font-size: 13px; }
.history-body {
  white-space: pre-wrap;
  font-family: "Cascadia Code", Consolas, monospace;
  font-size: 12px;
  color: #4b5563;
  max-height: 130px;
  overflow: auto;
  background: var(--bg);
  border-radius: 8px;
  padding: 10px;
}

.toast {
  position: fixed;
  left: 50%;
  bottom: 32px;
  transform: translateX(-50%);
  background: #111827;
  color: #fff;
  padding: 9px 18px;
  border-radius: 999px;
  z-index: 60;
  font-size: 13px;
  box-shadow: var(--shadow);
}

@media (max-width: 760px) {
  .layout { grid-template-columns: 1fr; }
  .sidebar {
    display: flex;
    gap: 6px;
    overflow-x: auto;
    border-right: none;
    border-bottom: 1px solid var(--border);
    padding: 8px;
  }
  .sidebar .side-title { display: none; }
  .sidebar br { display: none; }
  .side-item { width: auto; white-space: nowrap; }
  .topbar { flex-wrap: wrap; }
  .search { order: 3; flex-basis: 100%; max-width: none; }
  .item-actions { opacity: 1; }
}