/* ── Variables — soap-xml-formatter palette ────────────────────────────────── */
:root {
  --bg:        #0b1220;
  --panel:     #111827;
  --panel-2:   #0f172a;
  --muted:     #9aa4b2;
  --text:      #e5e7eb;
  --accent:    #60a5fa;
  --accent-2:  #34d399;
  --danger:    #f87171;
  --border:    #1f2937;
  --shadow:    rgba(0,0,0,.4);
  --btn:       #1f2937;
  --btn-hover: #334155;
  --hl:        #1e3a8a33;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

/* Standalone mode (xml-formatter/index.html) */
html, body {
  height: 100%;
  background: var(--bg);
  color: var(--text);
  font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  overflow: hidden;
}

#app {
  display: flex;
  flex-direction: column;
  height: 100vh;
  overflow: hidden;
}

/* Site-integrated mode (soap-xml-formatter.html with header + footer) */
body.xml-formatter-page {
  display: flex;
  flex-direction: column;
  height: 100vh;
  overflow: hidden;
}

body.xml-formatter-page #app {
  flex: 1;
  min-height: 0;
  height: auto;
}

body.xml-formatter-page footer {
  margin-top: 0;
  padding: 8px 20px;
  flex-shrink: 0;
}

body.xml-formatter-page footer .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
  max-width: 100%;
}

body.xml-formatter-page footer small,
body.xml-formatter-page footer a { font-size: 12px; }

/* ── Toolbar ─────────────────────────────────────────────────────────────────── */
#main-toolbar {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  padding: 0.5rem;
  background: var(--panel);
  border-bottom: 1px solid var(--border);
  border-radius: 0;
  flex-shrink: 0;
}

/* URL field inline in toolbar */
.field {
  display: flex;
  align-items: center;
  gap: 5px;
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 0.4rem 0.5rem;
}

#url-field {
  flex: 1;
  min-width: 260px;
  max-width: 480px;
}

#url-input {
  flex: 1;
  background: transparent;
  border: none;
  outline: none;
  color: var(--text);
  font-size: 13px;
  min-width: 0;
}

/* Upload label */
.file-label {
  cursor: pointer;
  transition: .15s;
  position: relative;
  overflow: hidden;
}
.file-label:hover { background: var(--btn-hover); }
.file-label input[type="file"] {
  position: absolute;
  inset: 0;
  opacity: 0;
  cursor: pointer;
  z-index: -1;
}

/* ── Advanced options (details pattern) ─────────────────────────────────────── */
details.adv        { display: contents; }
details.adv > summary { list-style: none; cursor: pointer; }
details.adv > summary::-webkit-details-marker { display: none; }
details.adv > summary.btn::after { content: ' ▼'; font-size: 9px; opacity: .7; }
details.adv[open] > summary.btn::after { content: ' ▲'; }

#adv-panel {
  display: none;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  padding: 8px 12px;
  background: var(--panel-2);
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}

.adv-field {
  display: flex;
  align-items: center;
  gap: 5px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 5px 8px;
}

.adv-field input[type="text"],
.adv-field input[type="number"] {
  background: transparent;
  border: none;
  outline: none;
  color: var(--text);
  font-size: 13px;
}

.adv-field input[type="text"]   { width: 9rem; }
.adv-field input[type="number"] { width: 5rem; }
#adv-find, #xpath-input { width: 14rem; }

.adv-sep {
  width: 1px;
  height: 24px;
  background: var(--border);
  flex-shrink: 0;
}

.adv-field label,
.adv-field span  { color: var(--muted); font-size: 12px; white-space: nowrap; }

/* Checkbox visible on dark background */
.adv-field input[type="checkbox"] {
  width: 15px;
  height: 15px;
  cursor: pointer;
  accent-color: var(--accent);
  flex-shrink: 0;
}

/* ── Buttons ─────────────────────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 0.5rem;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--btn);
  color: var(--text);
  cursor: pointer;
  font-size: 13px;
  font-weight: 600;
  text-decoration: none;
  transition: background .15s, transform .12s, box-shadow .12s;
  white-space: nowrap;
}
.btn:hover { background: var(--btn-hover); transform: translateY(-1px); box-shadow: 0 6px 18px var(--shadow); }
.btn:disabled { opacity: .45; cursor: not-allowed; transform: none; box-shadow: none; }

.btn.primary {
  background: linear-gradient(135deg, #3b82f6, #60a5fa);
  border-color: #3b82f6;
  color: #0b1220;
  font-weight: 700;
}
.btn.primary:hover { background: linear-gradient(135deg, #2563eb, #3b82f6); }

.btn.success {
  background: linear-gradient(135deg, #10b981, #34d399);
  border-color: #10b981;
  color: #06261d;
  font-weight: 700;
}
.btn.success:hover { background: linear-gradient(135deg, #059669, #10b981); }

.btn.danger { background: #1f0f0f; border-color: #7f1d1d; color: var(--danger); }
.btn.danger:hover { background: #2d1010; }

.btn.sm { padding: 4px 10px; font-size: 12px; border-radius: 6px; }

/* copy-output-btn style */
#btn-copy-output {
  background: var(--accent);
  border-color: var(--accent);
  color: #0b1220;
  font-weight: 700;
  transition: all .2s;
}
#btn-copy-output:hover  { background: #3b82f6; }
#btn-copy-output.copied { background: var(--accent-2, #34d399); border-color: var(--accent-2, #34d399); color: #06261d; }

/* ── Download group ──────────────────────────────────────────────────────────── */
.dl-group {
  display: flex;
  align-items: stretch;
  border: 1px solid #10b981;
  border-radius: 10px;
  overflow: hidden;
  flex-shrink: 0;
}
.dl-group #btn-download {
  border: none;
  border-radius: 0;
  border-right: 1px solid rgba(16,185,129,.4);
  padding: 5px 12px;
  font-size: 13px;
}
.dl-ext-select {
  background: linear-gradient(135deg, #065f46, #047857);
  color: #6ee7b7;
  border: none;
  padding: 0 10px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  outline: none;
  min-width: 56px;
  appearance: auto;
}

/* ── Tabs ────────────────────────────────────────────────────────────────────── */
#tabs {
  display: flex;
  align-items: flex-end;
  gap: 4px;
  padding: 6px 12px 0;
  background: var(--panel-2);
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}

.tab-right {
  display: flex;
  align-items: center;
  gap: 6px;
  padding-bottom: 6px;
}

.tab-btn {
  padding: 9px 20px;
  border: 1px solid var(--border);
  border-bottom: none;
  border-radius: 6px 6px 0 0;
  cursor: pointer;
  font-size: 13px;
  font-weight: 600;
  background: transparent;
  color: var(--muted);
  transition: .15s;
}
.tab-btn:hover { color: var(--text); background: rgba(255,255,255,.04); }
.tab-btn.active {
  background: rgba(96,165,250,.12);
  border-color: var(--accent);
  color: var(--accent);
}

/* ── Tree sub-toolbar ────────────────────────────────────────────────────────── */
#tree-toolbar {
  display: none;
  align-items: center;
  gap: 8px;
  padding: 5px 12px;
  background: var(--panel-2);
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}

.hint {
  font-size: 11px;
  color: var(--muted);
}

/* ── Content ─────────────────────────────────────────────────────────────────── */
#content {
  flex: 1 1 0;
  min-height: 0;
  position: relative;
  overflow: hidden;
}

#editor-panel  { position: absolute; inset: 0; }
#tree-panel    { position: absolute; inset: 0; overflow: auto; padding: 20px 24px; font-family: 'Fira Code','Consolas',monospace; font-size: 13px; }
#chart-panel   { position: absolute; inset: 0; overflow: hidden; }
#json-panel    { position: absolute; inset: 0; display: flex; flex-direction: column; }

/* ── CodeMirror ──────────────────────────────────────────────────────────────── */
.cm-editor   { height: 100% !important; }
.cm-scroller { overflow: auto; height: 100%; }

/* ── XML Tree ────────────────────────────────────────────────────────────────── */
.xt-root, .xt-root ul { list-style: none; }
.xt-root ul {
  padding-left: 1.5em;
  border-left: 1px dotted var(--border);
  margin-left: 4px;
}
.xt-root li { position: relative; line-height: 2; }

.xt-hidden { display: none !important; }

.xt-toggle {
  display: inline-block;
  cursor: pointer;
  color: var(--muted);
  font-size: 10px;
  width: 1em;
  text-align: center;
  margin-right: 5px;
  user-select: none;
}
.xt-toggle::before { content: '▼'; }
.xt-toggle.collapsed::before { content: '▶'; }
.xt-toggle:hover { color: var(--accent); }

.xt-line-badge {
  display: inline-block;
  font-size: 10px;
  color: var(--btn-hover);
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-radius: 3px;
  padding: 0 4px;
  margin-right: 6px;
  font-family: 'Fira Code','Consolas',monospace;
  cursor: default;
  transition: color .12s, border-color .12s;
}
.xt-line-badge:hover { color: var(--accent); border-color: var(--accent); }

.xt-tag        { color: #bfdbfe; font-weight: 500; }
.xt-bracket    { color: #93c5fd; }
.xt-attr-name  { color: #f9a8d4; }
.xt-eq         { color: #93c5fd; }
.xt-attr-val   { color: #86efac; }
.xt-text       { color: #e5e7eb; }
.xt-comment    { color: #94a3b8; font-style: italic; }
.xt-pi         { color: #a5b4fc; }

.xt-placeholder {
  color: var(--muted);
  font-size: 11px;
  margin-left: 4px;
  cursor: pointer;
  text-decoration: underline;
}
.xt-placeholder:hover { color: var(--accent); }

.empty-state      { color: var(--muted); text-align: center; margin-top: 80px; font-size: 14px; }
.empty-state.err  { color: var(--danger); }

/* ── Chart ───────────────────────────────────────────────────────────────────── */
#chart-svg { width: 100%; height: 100%; cursor: grab; background: var(--bg); }
#chart-svg:active { cursor: grabbing; }

.ch-link { fill: none; stroke: #059669; stroke-width: 1.5px; stroke-opacity: .6; }
.ch-node circle { stroke: var(--accent); stroke-width: 1.5px; cursor: pointer; }
.ch-node circle:hover { stroke: #fff; }
.ch-node text { font-family: 'Fira Code','Consolas',monospace; font-size: 12px; fill: #94a3b8; pointer-events: none; }
.ch-node text.ch-attrs { font-size: 10px; fill: #fbbf24; }

#chart-legend {
  position: absolute; top: 12px; right: 14px;
  background: rgba(11,18,32,.88);
  border: 1px solid var(--border);
  border-radius: 8px; padding: 10px 14px;
  font-size: 12px; pointer-events: none;
  backdrop-filter: blur(4px);
}
.legend-title { color: var(--muted); font-size: 10px; font-weight: 700; text-transform: uppercase; letter-spacing: .06em; margin-bottom: 8px; }
.legend-row   { display: flex; align-items: center; gap: 8px; margin-bottom: 6px; color: #94a3b8; }
.legend-row:last-child { margin-bottom: 0; }
.legend-dot   { width: 10px; height: 10px; border-radius: 50%; flex-shrink: 0; border: 1.5px solid rgba(255,255,255,.2); }
.legend-sep   { height: 1px; background: var(--border); margin: 8px 0; }

/* ── JSON panel ──────────────────────────────────────────────────────────────── */
#json-toolbar {
  display: flex; align-items: center; gap: 8px;
  padding: 6px 12px; flex-wrap: wrap;
  background: var(--panel-2); border-bottom: 1px solid var(--border); flex-shrink: 0;
}
#json-meta { margin-left: auto; font-size: 11px; color: var(--muted); font-family: monospace; }
.mode-group { display: inline-flex; border: 1px solid var(--border); border-radius: 6px; overflow: hidden; }
.mode-group .btn { border: none; border-radius: 0; border-right: 1px solid var(--border); font-size: 12px; padding: 4px 12px; }
.mode-group .btn:last-child { border-right: none; }
.mode-group .btn.active { background: rgba(96,165,250,.15); color: var(--accent); }
#json-editor-wrap { flex: 1; overflow: hidden; }
#json-editor-wrap .cm-editor { height: 100% !important; }

/* ── XPath results ───────────────────────────────────────────────────────────── */
#xpath-panel {
  display: none;
  flex-direction: column;
  background: var(--panel);
  border-top: 1px solid var(--border);
  max-height: 220px;
  flex-shrink: 0;
}
#xpath-header {
  display: flex; align-items: center; gap: 8px;
  padding: 5px 12px;
  background: var(--panel-2); border-bottom: 1px solid var(--border); flex-shrink: 0;
}
#xpath-badge {
  font-size: 11px; background: rgba(96,165,250,.12);
  color: var(--accent); padding: 1px 8px; border-radius: 10px;
}
#xpath-results { overflow-y: auto; padding: 4px 0; }

.xpath-item {
  display: flex; align-items: center; gap: 8px;
  padding: 4px 14px; border-bottom: 1px solid var(--border);
  font-size: 12px; font-family: 'Fira Code','Consolas',monospace;
}
.xpath-item:last-child { border-bottom: none; }
.xpath-item:hover { background: rgba(255,255,255,.025); }
.xi-num  { color: var(--muted); min-width: 24px; }
.xi-tag  { color: var(--accent); font-weight: 600; margin-right: 6px; }
.xi-val  { color: #94a3b8; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.xpath-empty { padding: 16px; text-align: center; color: var(--muted); font-size: 13px; }
.xpath-error { padding: 8px 14px; color: var(--danger); font-family: monospace; font-size: 12px; }

/* ── Status bar ──────────────────────────────────────────────────────────────── */
#status-bar {
  display: flex; justify-content: space-between; align-items: center;
  padding: 3px 12px;
  background: var(--panel-2); border-top: 1px solid var(--border);
  font-size: 11px; color: var(--muted);
  flex-shrink: 0; font-family: monospace; gap: 12px;
}
.status-left, .status-right { display: flex; gap: 14px; }
#status-bar span { white-space: nowrap; }

/* ── Toasts ──────────────────────────────────────────────────────────────────── */
#toasts {
  position: fixed; right: 14px; bottom: 32px;
  display: flex; flex-direction: column; gap: 8px; z-index: 9999;
}
.toast {
  background: var(--panel-2); color: var(--text);
  border: 1px solid var(--border);
  padding: 9px 14px; border-radius: 10px; font-size: 13px;
  box-shadow: 0 10px 30px var(--shadow);
  opacity: 1; transition: opacity .25s;
  animation: toast-in .2s ease;
}
.toast.ok  { border-color: #065f46; color: #d1fae5; }
.toast.err { border-color: #7f1d1d; color: #fee2e2; }

@keyframes toast-in { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: none; } }

/* ── Scrollbars ──────────────────────────────────────────────────────────────── */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--btn-hover); border-radius: 3px; }

/* ── Responsive ──────────────────────────────────────────────────────────────── */
@media (max-width: 768px) {
  #url-field { min-width: auto; max-width: 100%; flex: 1 1 100%; }
  .tab-right { flex-wrap: wrap; gap: 4px; }
  .adv-field input[type="text"] { width: 7rem; }
  #adv-find, #xpath-input { width: 10rem; }
}