/* JSON Studio - 样式表 */

:root {
  color-scheme: dark;
  --bg: #0f1116;
  --bg-elev: #161a21;
  --bg-sunken: #0b0d11;
  --panel: #141821;
  --border: #252b36;
  --border-soft: #1d222b;
  --text: #e6e9ef;
  --text-dim: #98a2b3;
  --text-faint: #6b7686;
  --accent: #4f9cf9;
  --accent-soft: rgba(79, 156, 249, 0.14);
  --green: #3fb950;
  --amber: #d29922;
  --red: #f85149;
  --purple: #bc8cff;
  --tk-key: #7cc4ff;
  --tk-str: #9ece6a;
  --tk-num: #ffab70;
  --tk-lit: #bc8cff;
  --tk-punc: #6b7686;
  --tk-cmt: #5c6773;
  --shadow: 0 8px 24px rgba(0, 0, 0, 0.45);
  --mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB",
    "Microsoft YaHei", sans-serif;
  --radius: 8px;
  --header-h: 52px;
}

:root[data-theme="light"] {
  color-scheme: light;
  --bg: #f5f6f8;
  --bg-elev: #ffffff;
  --bg-sunken: #fbfbfd;
  --panel: #ffffff;
  --border: #dfe3ea;
  --border-soft: #eaedf2;
  --text: #1a1f28;
  --text-dim: #5b6675;
  --text-faint: #8b95a5;
  --accent: #1f6feb;
  --accent-soft: rgba(31, 111, 235, 0.1);
  --green: #1a7f37;
  --amber: #9a6700;
  --red: #cf222e;
  --purple: #8250df;
  --tk-key: #0550ae;
  --tk-str: #0a7c3e;
  --tk-num: #b45309;
  --tk-lit: #8250df;
  --tk-punc: #8b95a5;
  --tk-cmt: #97a0ad;
  --shadow: 0 6px 20px rgba(16, 22, 32, 0.1);
}

* { box-sizing: border-box; }

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

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-size: 14px;
  line-height: 1.5;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  -webkit-font-smoothing: antialiased;
}

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

/* ------------------------------------------------------------- 顶栏 */

.app-header {
  height: var(--header-h);
  flex: none;
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 0 16px;
  background: var(--bg-elev);
  border-bottom: 1px solid var(--border);
}

.brand {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 650;
  letter-spacing: -0.2px;
  white-space: nowrap;
}

.brand-mark {
  width: 24px;
  height: 24px;
  border-radius: 6px;
  background: linear-gradient(135deg, var(--accent), var(--purple));
  display: grid;
  place-items: center;
  color: #fff;
  font-family: var(--mono);
  font-size: 13px;
  font-weight: 700;
}

.brand small {
  color: var(--text-faint);
  font-weight: 400;
  font-size: 12px;
}

.tabs {
  display: flex;
  gap: 2px;
  overflow-x: auto;
  scrollbar-width: none;
}
.tabs::-webkit-scrollbar { display: none; }

.tab {
  appearance: none;
  background: none;
  border: 0;
  padding: 6px 12px;
  border-radius: 6px;
  color: var(--text-dim);
  cursor: pointer;
  white-space: nowrap;
  transition: background 0.12s, color 0.12s;
}
.tab:hover { background: var(--border-soft); color: var(--text); }
.tab.active { background: var(--accent-soft); color: var(--accent); font-weight: 600; }

.header-right {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 6px;
}

/* ------------------------------------------------------------- 通用控件 */

.btn {
  appearance: none;
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 5px 11px;
  cursor: pointer;
  color: var(--text-dim);
  white-space: nowrap;
  transition: all 0.12s;
}
.btn:hover { border-color: var(--accent); color: var(--text); }
.btn:active { transform: translateY(1px); }
.btn.primary {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
  font-weight: 600;
}
.btn.primary:hover { filter: brightness(1.1); color: #fff; }
.btn.icon { padding: 5px 8px; }
.btn.sm { padding: 3px 8px; font-size: 12px; }
.btn:disabled { opacity: 0.45; cursor: not-allowed; }

.select {
  appearance: none;
  background: var(--bg-elev);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 5px 26px 5px 9px;
  cursor: pointer;
  color: var(--text-dim);
  background-image: linear-gradient(45deg, transparent 50%, var(--text-faint) 50%),
    linear-gradient(135deg, var(--text-faint) 50%, transparent 50%);
  background-position: right 12px center, right 8px center;
  background-size: 4px 4px, 4px 4px;
  background-repeat: no-repeat;
}
.select:hover { border-color: var(--accent); }

.field {
  background: var(--bg-sunken);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 5px 10px;
  min-width: 0;
}
.field:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}

.check {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  color: var(--text-dim);
  cursor: pointer;
  user-select: none;
  white-space: nowrap;
}
.check input { accent-color: var(--accent); margin: 0; cursor: pointer; }

.sep {
  width: 1px;
  height: 18px;
  background: var(--border);
  flex: none;
}

/* ------------------------------------------------------------- 布局 */

.view {
  flex: 1;
  min-height: 0;
  display: none;
  flex-direction: column;
}
.view.active { display: flex; }

.toolbar {
  flex: none;
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 12px;
  background: var(--bg-elev);
  border-bottom: 1px solid var(--border);
  flex-wrap: wrap;
}

.split {
  flex: 1;
  min-height: 0;
  display: grid;
  grid-template-columns: 1fr 6px 1fr;
}

.pane {
  min-width: 0;
  min-height: 0;
  display: flex;
  flex-direction: column;
  background: var(--panel);
}

.pane-head {
  flex: none;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 10px;
  border-bottom: 1px solid var(--border-soft);
  color: var(--text-faint);
  font-size: 12px;
  min-height: 33px;
}
.pane-head .title { font-weight: 600; color: var(--text-dim); }
.pane-head .spacer { margin-left: auto; }

.pane-body {
  flex: 1;
  min-height: 0;
  position: relative;
  overflow: auto;
}

.gutter-drag {
  cursor: col-resize;
  background: var(--border-soft);
  transition: background 0.15s;
}
.gutter-drag:hover, .gutter-drag.dragging { background: var(--accent); }

/* ------------------------------------------------------------- 编辑器 */

.editor {
  position: absolute;
  inset: 0;
  display: flex;
  background: var(--bg-sunken);
  font-family: var(--mono);
  font-size: 13px;
  line-height: 20px;
  overflow: hidden;
}
.editor.drag-over { outline: 2px dashed var(--accent); outline-offset: -4px; }

.ed-gutter {
  flex: none;
  width: 52px;
  padding: 10px 8px 10px 0;
  text-align: right;
  color: var(--text-faint);
  background: var(--bg-sunken);
  border-right: 1px solid var(--border-soft);
  overflow: hidden;
  user-select: none;
}
.ed-gutter .ln { height: 20px; font-variant-numeric: tabular-nums; }
.ed-gutter .ln.err {
  color: #fff;
  background: var(--red);
  border-radius: 3px;
  font-weight: 700;
}

.ed-body {
  position: relative;
  flex: 1;
  min-width: 0;
}

.ed-highlight, .ed-input {
  position: absolute;
  inset: 0;
  margin: 0;
  padding: 10px 12px;
  border: 0;
  font-family: inherit;
  font-size: inherit;
  line-height: inherit;
  white-space: pre;
  word-wrap: normal;
  overflow: auto;
  tab-size: 2;
}

.ed-highlight {
  pointer-events: none;
  color: var(--text);
  background: transparent;
  overflow: hidden;
}
.ed-highlight code { font: inherit; }

.ed-input {
  background: transparent;
  color: transparent;
  caret-color: var(--accent);
  resize: none;
  outline: none;
}
.ed-input::selection { background: rgba(79, 156, 249, 0.3); }
.ed-input::placeholder { color: var(--text-faint); }

.editor.wrapped .ed-highlight,
.editor.wrapped .ed-input { white-space: pre-wrap; word-break: break-word; }
.editor.wrapped .ed-gutter { display: none; }

.tk-key { color: var(--tk-key); }
.tk-str { color: var(--tk-str); }
.tk-num { color: var(--tk-num); }
.tk-lit { color: var(--tk-lit); }
.tk-punc { color: var(--tk-punc); }
.tk-cmt { color: var(--tk-cmt); font-style: italic; }
.ed-highlight.plain code { color: var(--text-dim); }

/* ------------------------------------------------------------- 树视图 */

.tree {
  padding: 10px 12px;
  font-family: var(--mono);
  font-size: 13px;
  line-height: 1.7;
}

.tn { position: relative; }
.tn .tn-children {
  display: none;
  margin-left: 14px;
  padding-left: 10px;
  border-left: 1px solid var(--border-soft);
}
.tn.open > .tn-children { display: block; }

.tn-row {
  display: flex;
  align-items: baseline;
  gap: 4px;
  border-radius: 4px;
  padding: 0 4px;
  cursor: default;
}
.tn-branch > .tn-row { cursor: pointer; }
.tn-row:hover { background: var(--border-soft); }
.tn-row:hover .tn-tools { opacity: 1; }

.tn-toggle {
  flex: none;
  width: 12px;
  color: var(--text-faint);
  transform: translateY(-1px);
}
.tn-branch > .tn-row .tn-toggle::before { content: "▸"; display: inline-block; transition: transform 0.12s; }
.tn-branch.open > .tn-row .tn-toggle::before { transform: rotate(90deg); }

.tn-key { color: var(--tk-key); }
.tn-key.tn-idx { color: var(--text-faint); }
.tn-key.tn-root { color: var(--purple); font-weight: 700; }
.tn-colon { color: var(--tk-punc); margin-right: 2px; }
.tn-preview { color: var(--text-faint); }

.tv { word-break: break-word; }
.tv-str { color: var(--tk-str); }
.tv-num { color: var(--tk-num); }
.tv-bool { color: var(--tk-lit); }
.tv-null { color: var(--text-faint); }
.tv-len {
  color: var(--text-faint);
  font-size: 11px;
  margin-left: 6px;
  padding: 0 5px;
  border: 1px solid var(--border);
  border-radius: 999px;
}

.tn-tools {
  margin-left: 8px;
  opacity: 0;
  display: inline-flex;
  gap: 3px;
  transition: opacity 0.12s;
}
.tn-btn {
  appearance: none;
  background: var(--bg-elev);
  border: 1px solid var(--border);
  color: var(--text-faint);
  border-radius: 4px;
  font-size: 11px;
  padding: 0 6px;
  cursor: pointer;
  line-height: 17px;
}
.tn-btn:hover { color: var(--accent); border-color: var(--accent); }

.tn-hit > .tn-row { background: rgba(210, 153, 34, 0.18); outline: 1px solid var(--amber); }

.tn-edit {
  background: var(--bg-sunken);
  border: 1px solid var(--accent);
  border-radius: 4px;
  padding: 0 6px;
  font-family: var(--mono);
  font-size: 13px;
  min-width: 120px;
}
.tn-edit:focus { outline: none; }

/* ------------------------------------------------------------- 状态栏 */

.statusbar {
  flex: none;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 5px 14px;
  background: var(--bg-elev);
  border-top: 1px solid var(--border);
  font-size: 12px;
  color: var(--text-faint);
  min-height: 30px;
}
.statusbar .stat { display: inline-flex; gap: 4px; white-space: nowrap; }
.statusbar .stat b { color: var(--text-dim); font-weight: 600; font-variant-numeric: tabular-nums; }
.statusbar .spacer { margin-left: auto; }

.status-msg {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.status-msg.ok { color: var(--green); }
.status-msg.err { color: var(--red); cursor: pointer; }
.status-msg.warn { color: var(--amber); }
.status-msg .dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: currentColor;
  flex: none;
}

/* ------------------------------------------------------------- 提示条 */

.hint {
  padding: 8px 12px;
  margin: 10px;
  border-radius: var(--radius);
  background: var(--accent-soft);
  color: var(--text-dim);
  font-size: 12px;
  line-height: 1.6;
}
.hint code {
  font-family: var(--mono);
  background: var(--bg-sunken);
  padding: 1px 5px;
  border-radius: 4px;
  color: var(--accent);
}

.empty-state {
  height: 100%;
  display: grid;
  place-content: center;
  text-align: center;
  color: var(--text-faint);
  gap: 6px;
  padding: 20px;
}
.empty-state .big { font-size: 28px; opacity: 0.5; }

/* ------------------------------------------------------------- 输出区 */

.output {
  margin: 0;
  padding: 12px;
  font-family: var(--mono);
  font-size: 13px;
  line-height: 20px;
  white-space: pre;
  overflow: auto;
  height: 100%;
  color: var(--text);
  tab-size: 2;
}
.output.wrap { white-space: pre-wrap; word-break: break-word; }
.output.error { color: var(--red); }

/* ------------------------------------------------------------- diff */

.diff-tree { padding: 10px 12px; font-family: var(--mono); font-size: 13px; line-height: 1.7; }
.dn-row {
  display: flex;
  gap: 6px;
  align-items: baseline;
  padding: 0 6px;
  border-radius: 4px;
  border-left: 3px solid transparent;
}
.dn-children { margin-left: 16px; padding-left: 8px; border-left: 1px solid var(--border-soft); }
.dn-mark { width: 12px; flex: none; text-align: center; font-weight: 700; }
.dn-key { color: var(--tk-key); }
.dn-val { word-break: break-word; }
.dn-arrow { color: var(--text-faint); }

.dn.added > .dn-row { background: rgba(63, 185, 80, 0.14); border-left-color: var(--green); }
.dn.added .dn-mark { color: var(--green); }
.dn.removed > .dn-row { background: rgba(248, 81, 73, 0.13); border-left-color: var(--red); }
.dn.removed .dn-mark { color: var(--red); }
.dn.changed.leaf > .dn-row { background: rgba(210, 153, 34, 0.14); border-left-color: var(--amber); }
.dn.changed.leaf .dn-mark { color: var(--amber); }
.dn.same > .dn-row { color: var(--text-faint); }
.diff-tree.only-diff .dn.same.leaf { display: none; }

.val-old { color: var(--red); text-decoration: line-through; opacity: 0.85; }
.val-new { color: var(--green); }

/* ------------------------------------------------------------- 查询结果 */

.result-list { padding: 8px 10px; font-family: var(--mono); font-size: 13px; }
.result-item {
  border: 1px solid var(--border-soft);
  border-radius: 6px;
  padding: 6px 10px;
  margin-bottom: 6px;
  background: var(--bg-sunken);
}
.result-path {
  color: var(--accent);
  font-size: 12px;
  margin-bottom: 3px;
  cursor: pointer;
  word-break: break-all;
}
.result-path:hover { text-decoration: underline; }
.result-value { white-space: pre-wrap; word-break: break-word; color: var(--text); }

/* ------------------------------------------------------------- 编码工具 */

.tool-grid {
  padding: 14px;
  display: grid;
  gap: 14px;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  overflow: auto;
  align-content: start;
}
.card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  display: flex;
  flex-direction: column;
}
.card-head {
  padding: 8px 12px;
  border-bottom: 1px solid var(--border-soft);
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 600;
  font-size: 13px;
}
.card-head .spacer { margin-left: auto; }
.card-body { padding: 10px 12px; display: flex; flex-direction: column; gap: 8px; }
.card textarea {
  width: 100%;
  min-height: 84px;
  resize: vertical;
  background: var(--bg-sunken);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 8px 10px;
  font-family: var(--mono);
  font-size: 12.5px;
  line-height: 1.6;
}
.card textarea:focus { outline: none; border-color: var(--accent); }
.card .row { display: flex; gap: 6px; align-items: center; flex-wrap: wrap; }
.card .out {
  background: var(--bg-sunken);
  border: 1px dashed var(--border);
  border-radius: 6px;
  padding: 8px 10px;
  font-family: var(--mono);
  font-size: 12.5px;
  word-break: break-all;
  white-space: pre-wrap;
  min-height: 38px;
  color: var(--text-dim);
}

/* ------------------------------------------------------------- toast */

.toast-host {
  position: fixed;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  gap: 8px;
  align-items: center;
  z-index: 99;
  pointer-events: none;
}
.toast {
  background: var(--bg-elev);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  border-radius: 999px;
  padding: 7px 16px;
  font-size: 13px;
  animation: toast-in 0.18s ease-out;
}
.toast.err { border-color: var(--red); color: var(--red); }
.toast.ok { border-color: var(--green); color: var(--green); }
@keyframes toast-in {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: none; }
}

/* ------------------------------------------------------------- 滚动条 */

::-webkit-scrollbar { width: 11px; height: 11px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb {
  background: var(--border);
  border-radius: 6px;
  border: 3px solid var(--bg);
}
::-webkit-scrollbar-thumb:hover { background: var(--text-faint); }
::-webkit-scrollbar-corner { background: transparent; }

/* ------------------------------------------------------------- 响应式 */

@media (max-width: 860px) {
  .split { grid-template-columns: 1fr; grid-template-rows: 1fr 6px 1fr; }
  .gutter-drag { cursor: row-resize; }
  .brand small { display: none; }
  .toolbar { padding: 6px 8px; }
  .app-header { gap: 8px; padding: 0 10px; }
}