/* JSON Formatter — see BRAND.md. System font stack, no external assets. */
:root {
  --bg: #f6f7f9;
  --panel: #ffffff;
  --panel2: #fbfcfd;
  --border: #d9dee5;
  --text: #1b2733;
  --muted: #5b6b7b;
  --accent: #2563eb;
  --accent-soft: #dbe7ff;
  --ok-bg: #e7f6ec;
  --ok-border: #34a35c;
  --ok-text: #14532d;
  --warn-bg: #fdf3dc;
  --warn-border: #d99a06;
  --warn-text: #6b4e02;
  --err-bg: #fdecec;
  --err-border: #dc4a4a;
  --err-text: #7a1f1f;
  --key: #8b2252;
  --string: #0b7261;
  --number: #1d4ed8;
  --literal: #9333ea;
  --punct: #8a97a5;
  --sel: #eef4ff;
  --mark: #ffe58a;
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #10151c;
    --panel: #171e27;
    --panel2: #131922;
    --border: #2a3441;
    --text: #dbe4ee;
    --muted: #8b9aab;
    --accent: #5b8def;
    --accent-soft: #1d3260;
    --ok-bg: #10281a;
    --ok-border: #2e8b57;
    --ok-text: #9fe0b5;
    --warn-bg: #2c2410;
    --warn-border: #b8860b;
    --warn-text: #ecd28a;
    --err-bg: #2d1515;
    --err-border: #c05050;
    --err-text: #f0a8a8;
    --key: #e08bb4;
    --string: #64d3b2;
    --number: #82aaff;
    --literal: #c792ea;
    --punct: #64748b;
    --sel: #1c2a44;
    --mark: #6b5900;
  }
}
:root[data-theme="dark"] {
  --bg: #10151c;
  --panel: #171e27;
  --panel2: #131922;
  --border: #2a3441;
  --text: #dbe4ee;
  --muted: #8b9aab;
  --accent: #5b8def;
  --accent-soft: #1d3260;
  --ok-bg: #10281a;
  --ok-border: #2e8b57;
  --ok-text: #9fe0b5;
  --warn-bg: #2c2410;
  --warn-border: #b8860b;
  --warn-text: #ecd28a;
  --err-bg: #2d1515;
  --err-border: #c05050;
  --err-text: #f0a8a8;
  --key: #e08bb4;
  --string: #64d3b2;
  --number: #82aaff;
  --literal: #c792ea;
  --punct: #64748b;
  --sel: #1c2a44;
  --mark: #6b5900;
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 15px/1.5 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  display: flex;
  flex-direction: column;
}

header.app {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 18px;
  border-bottom: 1px solid var(--border);
  background: var(--panel);
  flex-wrap: wrap;
}
.logo {
  font-family: var(--mono);
  font-weight: 700;
  font-size: 20px;
  color: var(--accent);
}
header.app h1 { font-size: 17px; margin: 0; font-weight: 650; }
.tagline { color: var(--muted); font-size: 13px; }
.privacy {
  margin-left: auto;
  font-size: 12px;
  color: var(--muted);
  display: flex;
  align-items: center;
  gap: 10px;
}
.privacy .dot { color: var(--ok-border); }

.toolbar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 18px;
  border-bottom: 1px solid var(--border);
  background: var(--panel);
  flex-wrap: wrap;
}
.toolbar .sep { width: 1px; height: 22px; background: var(--border); margin: 0 4px; }
.toolbar label { font-size: 13px; color: var(--muted); display: flex; align-items: center; gap: 5px; }

button, select {
  font: inherit;
  font-size: 13.5px;
  padding: 6px 12px;
  border-radius: 7px;
  border: 1px solid var(--border);
  background: var(--panel2);
  color: var(--text);
  cursor: pointer;
}
button:hover { border-color: var(--accent); }
button.primary { background: var(--accent); border-color: var(--accent); color: #fff; font-weight: 600; }
button.primary:hover { filter: brightness(1.08); }
button.small { padding: 2px 8px; font-size: 12px; border-radius: 5px; }
button:disabled { opacity: 0.5; cursor: default; }

main {
  flex: 1;
  display: grid;
  grid-template-columns: minmax(280px, 5fr) minmax(320px, 7fr);
  gap: 0;
  min-height: 0;
}
.pane { display: flex; flex-direction: column; min-height: 0; min-width: 0; }
.pane.input { border-right: 1px solid var(--border); }
.pane-head {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 12px;
  font-size: 12.5px;
  color: var(--muted);
  border-bottom: 1px solid var(--border);
  background: var(--panel2);
  flex-wrap: wrap;
}
.pane-head .spacer { flex: 1; }

#input {
  flex: 1;
  width: 100%;
  resize: none;
  border: 0;
  outline: none;
  padding: 12px 14px;
  background: var(--panel);
  color: var(--text);
  font-family: var(--mono);
  font-size: 13px;
  line-height: 1.5;
  min-height: 0;
}
#input.dragover { outline: 2px dashed var(--accent); outline-offset: -6px; }

.banners { padding: 0 12px; }
.banner {
  margin: 8px 0;
  border-radius: 8px;
  padding: 9px 12px;
  font-size: 13.5px;
  border: 1px solid;
}
.banner.ok { background: var(--ok-bg); border-color: var(--ok-border); color: var(--ok-text); }
.banner.warn { background: var(--warn-bg); border-color: var(--warn-border); color: var(--warn-text); }
.banner.err { background: var(--err-bg); border-color: var(--err-border); color: var(--err-text); }
.banner ul { margin: 6px 0 2px; padding-left: 20px; }
.banner .excerpt {
  font-family: var(--mono);
  font-size: 12.5px;
  white-space: pre;
  overflow-x: auto;
  display: block;
  background: rgba(0,0,0,0.06);
  border-radius: 5px;
  padding: 6px 8px;
  margin-top: 6px;
}
.banner .banner-actions { margin-top: 8px; }

.crumb {
  display: none;
  align-items: center;
  gap: 8px;
  padding: 5px 12px;
  font-family: var(--mono);
  font-size: 12.5px;
  color: var(--muted);
  border-bottom: 1px solid var(--border);
  background: var(--panel2);
  overflow-x: auto;
  white-space: nowrap;
}
.crumb.active { display: flex; }
.crumb .path { color: var(--accent); }

.searchbar { display: flex; align-items: center; gap: 6px; }
.searchbar input {
  font: inherit;
  font-size: 13px;
  padding: 4px 9px;
  border-radius: 6px;
  border: 1px solid var(--border);
  background: var(--panel);
  color: var(--text);
  width: 180px;
}
.searchbar .count { font-size: 12px; color: var(--muted); min-width: 52px; text-align: center; }

.output-body { flex: 1; overflow: auto; min-height: 0; background: var(--panel); }
#tree { padding: 8px 14px 30px; font-family: var(--mono); font-size: 13px; line-height: 1.55; }
#text-out {
  margin: 0;
  padding: 12px 14px 30px;
  font-family: var(--mono);
  font-size: 13px;
  line-height: 1.5;
  white-space: pre;
  overflow: visible;
}

.tabs { display: flex; gap: 2px; }
.tabs button { border: 0; background: none; color: var(--muted); padding: 4px 10px; border-radius: 6px; }
.tabs button.active { background: var(--accent-soft); color: var(--accent); font-weight: 600; }

/* Tree nodes */
.node { position: relative; }
.node .row {
  display: flex;
  align-items: baseline;
  gap: 2px;
  border-radius: 5px;
  padding: 0 4px;
  cursor: default;
  white-space: nowrap;
}
.node .row:hover { background: var(--sel); }
.node .row.selected { background: var(--accent-soft); }
.node .kids { margin-left: 18px; border-left: 1px solid var(--border); padding-left: 8px; }
.tw {
  display: inline-block;
  width: 14px;
  text-align: center;
  color: var(--punct);
  cursor: pointer;
  user-select: none;
  flex-shrink: 0;
}
.k { color: var(--key); }
.s { color: var(--string); }
.n { color: var(--number); }
.l { color: var(--literal); }
.p { color: var(--punct); }
.badge {
  color: var(--muted);
  font-size: 11.5px;
  margin-left: 6px;
}
.rowbtns { display: none; margin-left: 8px; gap: 4px; }
.node .row:hover .rowbtns { display: inline-flex; }
.rowbtns button { padding: 0 6px; font-size: 11px; border-radius: 4px; line-height: 1.5; }
.chip {
  font-size: 11px;
  padding: 0 6px;
  margin-left: 6px;
  border-radius: 9px;
  border: 1px solid var(--accent);
  color: var(--accent);
  background: none;
  cursor: pointer;
}
mark { background: var(--mark); color: inherit; border-radius: 2px; padding: 0 1px; }
.s.hit, .k.hit, .n.hit { outline: 2px solid var(--warn-border); border-radius: 3px; }

/* Text tab highlighting */
.tok-k { color: var(--key); }
.tok-s { color: var(--string); }
.tok-n { color: var(--number); }
.tok-l { color: var(--literal); }

.statusbar {
  display: flex;
  gap: 16px;
  padding: 6px 18px;
  border-top: 1px solid var(--border);
  background: var(--panel);
  font-size: 12.5px;
  color: var(--muted);
  flex-wrap: wrap;
}
.statusbar strong { color: var(--text); font-weight: 600; }

footer.app {
  padding: 10px 18px 14px;
  font-size: 12.5px;
  color: var(--muted);
  border-top: 1px solid var(--border);
  background: var(--panel2);
}
footer.app a { color: var(--accent); }

.visually-hidden { position: absolute; left: -9999px; }

/* Popovers (History / Settings) */
.popover {
  position: fixed;
  z-index: 50;
  width: min(420px, calc(100vw - 24px));
  max-height: min(60vh, 480px);
  overflow-y: auto;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 10px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.18);
  padding: 10px 12px;
  font-size: 13px;
}
.pop-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  margin-bottom: 6px;
}
.pop-hint { color: var(--muted); font-size: 12px; margin: 8px 0 2px; }
#history-list { list-style: none; margin: 0; padding: 0; }
.hist-item {
  padding: 7px 8px;
  border-radius: 7px;
  cursor: pointer;
  border: 1px solid transparent;
}
.hist-item:hover { background: var(--sel); border-color: var(--border); }
.hist-head { display: flex; gap: 10px; align-items: baseline; }
.hist-time { font-family: var(--mono); font-size: 12px; color: var(--muted); }
.hist-size { font-size: 11.5px; color: var(--muted); margin-left: auto; }
.hist-kind { font-size: 11px; padding: 0 7px; border-radius: 9px; border: 1px solid; }
.hist-valid { color: var(--ok-text); border-color: var(--ok-border); background: var(--ok-bg); }
.hist-jsonl { color: var(--accent); border-color: var(--accent); background: var(--accent-soft); }
.hist-repaired { color: var(--warn-text); border-color: var(--warn-border); background: var(--warn-bg); }
.hist-preview {
  font-family: var(--mono);
  font-size: 11.5px;
  color: var(--muted);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  margin-top: 2px;
}
.hist-empty { color: var(--muted); padding: 6px 4px; }
.pop-setting {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  padding: 7px 4px;
  cursor: pointer;
}
.pop-setting input { margin-top: 3px; }
.pop-setting small { display: block; color: var(--muted); margin-top: 2px; }

@media (max-width: 768px) {
  .popover { left: 12px !important; right: 12px; width: auto; }
}

/* Mobile: single column, everything stacks (estate rule) */
@media (max-width: 768px) {
  main { grid-template-columns: 1fr; grid-template-rows: minmax(180px, 38vh) 1fr; }
  .pane.input { border-right: 0; border-bottom: 1px solid var(--border); }
  header.app { flex-direction: column; align-items: flex-start; gap: 4px; }
  .privacy { margin-left: 0; }
  .toolbar { flex-direction: column; align-items: stretch; }
  .toolbar button, .toolbar select, .toolbar label { width: 100%; }
  .toolbar .sep { display: none; }
  .searchbar { width: 100%; }
  .searchbar input { flex: 1; width: auto; }
  .pane-head { flex-direction: column; align-items: stretch; }
}