/* CHANGE: rust_minimal dark shell for Config Editor SPA */
:root {
  color-scheme: dark;
  --bg: #0b0c0e;
  --panel: rgba(16, 16, 16, 0.92);
  --line: rgba(246, 235, 225, 0.12);
  --text: #f0eee8;
  --muted: #9b968c;
  --accent: #4070a0;
  --ok: #738c45;
  --danger: #cd4130;
  --warn: #c26d33;
  --input: #151618;
  --focus: #5a9ad0;
  --radius: 10px;
  --font: "Segoe UI", system-ui, sans-serif;
  --mono: ui-monospace, "Cascadia Mono", Consolas, monospace;
}

* { box-sizing: border-box; }
html, body { margin: 0; min-height: 100%; }
body {
  font-family: var(--font);
  background:
    radial-gradient(1200px 600px at 10% -10%, rgba(64, 112, 160, 0.18), transparent 55%),
    radial-gradient(900px 500px at 90% 0%, rgba(115, 140, 69, 0.12), transparent 50%),
    var(--bg);
  color: var(--text);
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

a { color: #c9a227; text-decoration: none; }
a:hover { text-decoration: underline; }
.muted { color: var(--muted); font-size: 0.82rem; }

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.7rem 1.25rem;
  border-bottom: 1px solid var(--line);
  background: rgba(10, 10, 12, 0.85);
  backdrop-filter: blur(10px);
  position: sticky;
  top: 0;
  z-index: 10;
  flex-wrap: wrap;
}
.brand { display: flex; align-items: center; gap: 0.75rem; }
.brand strong { display: block; font-size: 1rem; }
.brand-mark {
  width: 36px; height: 36px; border-radius: 8px;
  display: grid; place-items: center;
  background: var(--accent);
  color: #fff; font-weight: 700; font-size: 0.85rem;
}
.top-links { display: flex; gap: 1rem; font-size: 0.9rem; }

/* CHANGE: top tabs — Редактор / Настройки / Политика */
.tabs {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.2rem;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.03);
}
.tab {
  border: 0;
  background: transparent;
  color: var(--muted);
  font: inherit;
  font-size: 0.88rem;
  padding: 0.45rem 0.9rem;
  border-radius: 8px;
  cursor: pointer;
}
.tab:hover { color: var(--text); background: rgba(255, 255, 255, 0.05); }
.tab.is-active {
  color: var(--text);
  background: rgba(64, 112, 160, 0.35);
}
.tab-page { display: none; flex: 1; min-height: 0; }
.tab-page.is-active { display: flex; flex-direction: column; }
.page-shell {
  flex: 1;
  padding: 0.85rem;
  display: flex;
  justify-content: center;
}
.page-panel {
  width: min(100%, 720px);
  align-self: flex-start;
}
.field.check {
  flex-direction: row;
  align-items: center;
  gap: 0.65rem;
  color: var(--text);
}
.field.check input { width: auto; accent-color: var(--accent); }
.prose h3 {
  margin: 1rem 0 0.4rem;
  font-size: 0.95rem;
  color: var(--text);
}
.prose p {
  margin: 0 0 0.75rem;
  color: var(--muted);
  line-height: 1.55;
  font-size: 0.92rem;
}
.prose strong { color: var(--text); font-weight: 600; }

.layout {
  flex: 1;
  display: grid;
  grid-template-columns: minmax(280px, 1.05fr) minmax(320px, 1.35fr) minmax(260px, 1fr);
  gap: 0.85rem;
  padding: 0.85rem;
  min-height: 0;
}
.panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 0.9rem 1rem;
  min-height: 0;
  display: flex;
  flex-direction: column;
}
.panel h2 {
  margin: 0 0 0.75rem;
  font-size: 0.95rem;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  color: var(--muted);
  font-weight: 600;
}

.side .grow { flex: 1; display: flex; flex-direction: column; min-height: 180px; }
.side textarea {
  flex: 1;
  min-height: 220px;
  resize: vertical;
}
/* CHANGE: «В форму из JSON» sits on the Сырой JSON header row (right) */
.raw-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  margin-bottom: 0.35rem;
}
.raw-head > span {
  color: var(--muted);
  font-size: 0.85rem;
}
.raw-head .btn {
  flex: 0 0 auto;
  padding: 0.4rem 0.75rem;
  font-size: 0.8rem;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  margin-bottom: 0.75rem;
  font-size: 0.85rem;
  color: var(--muted);
}
.field input[type="text"],
.field select,
.field textarea,
.node-input {
  width: 100%;
  border: 1px solid var(--line);
  background: var(--input);
  color: var(--text);
  border-radius: 8px;
  padding: 0.55rem 0.65rem;
  font: inherit;
}
.field textarea,
.preview {
  font-family: var(--mono);
  font-size: 0.78rem;
  line-height: 1.45;
}
.field input:focus,
.field select:focus,
.field textarea:focus,
.node-input:focus {
  outline: 1px solid var(--focus);
  border-color: var(--focus);
}

.btn-row { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-bottom: 0.75rem; }
.btn-row.compact { margin: 0; }
.btn {
  border: 1px solid transparent;
  border-radius: 8px;
  padding: 0.5rem 0.85rem;
  font: inherit;
  font-size: 0.85rem;
  cursor: pointer;
  color: #fff;
}
.btn.primary { background: rgba(18, 107, 160, 0.92); }
.btn.ok { background: rgba(115, 140, 69, 0.92); }
.btn.secondary {
  background: rgba(55, 58, 62, 0.95);
  border-color: var(--line);
  color: var(--text);
}
.btn.ghost {
  background: transparent;
  border-color: var(--line);
  color: var(--text);
}
.btn:hover { filter: brightness(1.08); }

/* CHANGE: custom file picker matching site buttons (hide native OS control) */
.file-pick {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  flex-wrap: wrap;
}
.file-label {
  font-size: 0.82rem;
  word-break: break-all;
}

.hint { color: var(--muted); font-size: 0.78rem; margin: 0 0 0.75rem; line-height: 1.4; }
.status {
  min-height: 1.2rem;
  font-size: 0.8rem;
  margin: 0.25rem 0 0;
  color: var(--ok);
}
.status.error { color: var(--danger); }

.form-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  margin-bottom: 0.5rem;
}
.form-head h2 { margin: 0; }
.form-root {
  overflow: auto;
  flex: 1;
  padding-right: 0.25rem;
}

.node {
  border-left: 1px solid var(--line);
  margin-left: 0.2rem;
  padding-left: 0.55rem;
  margin-bottom: 0.35rem;
}
.node-row {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  margin-bottom: 0.3rem;
  min-height: 36px;
  flex-wrap: wrap;
}
.node-head {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
  margin-bottom: 0.3rem;
  min-height: 36px;
}
.fold-hit {
  flex: 0 0 auto;
  width: 34px;
  height: 34px;
  display: inline-grid;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.04);
  color: var(--text);
  cursor: pointer;
  padding: 0;
}
.fold-hit:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: var(--focus);
}
.fold-hit:focus-visible {
  outline: 2px solid var(--focus);
  outline-offset: 1px;
}
/* CHANGE: CSS chevron — rotates when expanded */
.chevron {
  width: 9px;
  height: 9px;
  border-right: 2px solid currentColor;
  border-bottom: 2px solid currentColor;
  transform: rotate(-45deg);
  opacity: 0.9;
  transition: transform 0.15s ease;
  margin-left: 2px;
}
.fold-hit[aria-expanded="true"] .chevron {
  transform: rotate(45deg);
  margin-top: -2px;
  margin-left: 0;
}
/* CHANGE: key does not grow — badge stays right after the name */
.node-key {
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--text);
  word-break: break-word;
  flex: 0 1 auto;
  max-width: min(100%, 28rem);
}
.badge {
  flex: 0 0 auto;
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--muted);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 0.15rem 0.5rem;
}
.node-actions {
  display: flex;
  gap: 0.35rem;
  margin-left: auto;
  align-items: center;
  flex: 0 0 auto;
}
.node-actions button:not(.icon-btn) {
  border: 1px solid var(--line);
  background: rgba(255,255,255,0.04);
  color: var(--muted);
  cursor: pointer;
  font-size: 0.78rem;
  padding: 0.3rem 0.5rem;
  border-radius: 8px;
}
.node-actions button:not(.icon-btn):hover { background: rgba(255,255,255,0.1); color: var(--text); }

/* CHANGE: pencil rename control — line icon, muted like «удалить» */
.icon-btn {
  flex: 0 0 auto;
  width: 30px;
  height: 30px;
  display: inline-grid;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.04);
  color: var(--muted);
  cursor: pointer;
  padding: 0;
}
.icon-btn:hover {
  color: var(--text);
  background: rgba(90, 154, 208, 0.22);
  border-color: var(--focus);
}
.icon-btn:focus-visible {
  outline: 2px solid var(--focus);
  outline-offset: 1px;
}
.key-edit {
  width: min(100%, 22rem);
  border: 1px solid var(--focus);
  background: var(--input);
  color: var(--text);
  border-radius: 6px;
  padding: 0.25rem 0.45rem;
  font: inherit;
  font-weight: 600;
  font-size: 0.9rem;
}
.node-body.collapsed { display: none; }
.node-leaf { display: grid; gap: 0.35rem; }
.node-leaf.row {
  grid-template-columns: 1fr auto;
  align-items: center;
}
.toggle {
  appearance: none;
  width: 42px; height: 24px;
  border-radius: 999px;
  background: #2a2c2e;
  position: relative;
  cursor: pointer;
  border: 1px solid var(--line);
}
.toggle::after {
  content: "";
  position: absolute;
  top: 2px; left: 2px;
  width: 18px; height: 18px;
  border-radius: 50%;
  background: #cfc9be;
  transition: transform 0.15s ease;
}
.toggle.on { background: rgba(115, 140, 69, 0.85); }
.toggle.on::after { transform: translateX(18px); background: #fff; }

.array-tools { display: flex; gap: 0.4rem; margin: 0.25rem 0 0.5rem; }
.array-tools .btn { padding: 0.3rem 0.55rem; font-size: 0.75rem; }

.preview-panel .preview {
  flex: 1;
  margin: 0;
  overflow: auto;
  background: var(--input);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 0.75rem;
  white-space: pre-wrap;
  word-break: break-word;
}

.footer {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.65rem 1.25rem 0.9rem;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.8rem;
}

.empty {
  color: var(--muted);
  font-size: 0.9rem;
  padding: 1.5rem 0.5rem;
  text-align: center;
}

/* CHANGE: in-app modal for new field name (replaces browser prompt) */
.modal[hidden] { display: none !important; }
.modal {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: grid;
  place-items: center;
  padding: 1rem;
}
.modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.62);
  backdrop-filter: blur(3px);
}
.modal-card {
  position: relative;
  width: min(100%, 420px);
  background: #141516;
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 1.1rem 1.15rem 1rem;
  box-shadow: 0 18px 50px rgba(0, 0, 0, 0.55);
}
.modal-card h3 {
  margin: 0 0 0.85rem;
  font-size: 1.05rem;
  font-weight: 650;
}
.modal-actions {
  justify-content: flex-end;
  margin: 0.35rem 0 0;
}
.modal-error {
  color: var(--danger);
  font-size: 0.8rem;
  margin: 0 0 0.55rem;
}

@media (max-width: 1100px) {
  .layout {
    grid-template-columns: 1fr;
  }
  .preview-panel { max-height: 320px; }
  .side textarea { min-height: 160px; }
  .tabs { order: 3; width: 100%; justify-content: stretch; }
  .tab { flex: 1; text-align: center; }
}