:root {
  --bg: #f6f7f9;
  --panel: #ffffff;
  --panel-2: #f0f2f5;
  --text: #1f2329;
  --muted: #6b7280;
  --accent: #2563eb;
  --border: #d0d7de;
  --ok: #1a7f37;
  --err: #cf222e;
}

* {
  box-sizing: border-box;
}

/* The `hidden` attribute must always suppress rendering. Author `display`
   rules (e.g. `label { display: flex }` below) otherwise override the UA
   `[hidden] { display: none }` rule, so without this a <label hidden> row
   would stay visible. This makes app.js's `el.hidden = ...` toggling
   authoritative for every element, including <label>. */
[hidden] {
  display: none !important;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, "Noto Sans SC", sans-serif;
  line-height: 1.5;
}

.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 1.5rem;
  background: var(--panel);
  border-bottom: 1px solid var(--border);
}

.topbar h1 {
  margin: 0;
  font-size: 1.2rem;
}

.subtitle {
  margin: 0.15rem 0 0;
  color: var(--muted);
  font-size: 0.85rem;
}

.topbar-right {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.lang-toggle select {
  margin-left: 0.4rem;
}

.badge {
  font-size: 0.8rem;
  padding: 0.2rem 0.6rem;
  border-radius: 999px;
  border: 1px solid var(--border);
}

.badge-waiting {
  color: var(--muted);
}

.badge-ready {
  color: var(--ok);
  border-color: var(--ok);
}

.badge-failed {
  color: var(--err);
  border-color: var(--err);
}

.card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 1rem 1.2rem;
  margin: 1rem 1.5rem;
}

.tng-card .grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 0.8rem;
}

.card-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.5rem;
}

.card-head h2 {
  margin: 0;
}

#view-config-btn {
  font-size: 0.8rem;
  padding: 0.25rem 0.6rem;
}

.config-preview {
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 0.8rem;
  margin-top: 0.6rem;
  white-space: pre-wrap;
  word-break: break-word;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.8rem;
}

.tng-card > label,
.tng-card > .field {
  margin-top: 0.6rem;
}

.card-subhead {
  margin: 0.8rem 0 0.2rem;
  font-size: 0.95rem;
  color: var(--muted);
}

label {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
  font-size: 0.85rem;
  color: var(--muted);
}

label.inline {
  flex-direction: row;
  align-items: center;
  gap: 0.5rem;
}

label.checkbox span {
  color: var(--text);
}

input,
select,
textarea {
  background: var(--panel-2);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 0.4rem 0.5rem;
  font: inherit;
}

textarea {
  width: 100%;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  resize: vertical;
}

button {
  background: var(--panel-2);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 0.4rem 0.8rem;
  cursor: pointer;
  font: inherit;
}

button.primary {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.tabs {
  display: flex;
  gap: 0.25rem;
  padding: 0 1.5rem;
}

.tab {
  background: transparent;
  border: 1px solid var(--border);
  border-bottom: none;
  border-radius: 6px 6px 0 0;
}

.tab.active {
  background: var(--panel);
}

.tab-panel {
  display: none;
}

.tab-panel.active {
  display: block;
}

.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  padding: 0 1.5rem;
}

/* min-width:0 lets the grid tracks shrink below their content's min width,
   so long response lines scroll inside code blocks instead of blowing out the
   card width. */
.two-col > * {
  min-width: 0;
}

.form {
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
  margin: 0;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
}

.field-label {
  font-size: 0.85rem;
  color: var(--muted);
}

.headers-list {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.header-row {
  display: grid;
  grid-template-columns: 1fr 1fr auto;
  gap: 0.4rem;
}

.response {
  min-height: 300px;
  min-width: 0;
  overflow: hidden;
}

.response-body {
  font-size: 0.85rem;
}

/* Status bar: green left accent when ok, red when not. */
.resp-status {
  display: flex;
  align-items: baseline;
  gap: 0.5rem;
  padding: 0.4rem 0.6rem;
  margin-bottom: 0.6rem;
  border-radius: 4px;
  background: var(--panel-2);
  border-left: 3px solid var(--ok);
}
.resp-status.err {
  border-left-color: var(--err);
}
.resp-code {
  font-weight: 600;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
}
.resp-text {
  color: var(--muted);
}

.resp-section {
  margin-top: 0.6rem;
}
.resp-label {
  font-size: 0.8rem;
  color: var(--muted);
  margin-bottom: 0.2rem;
}
.resp-collapsible summary {
  cursor: pointer;
  font-size: 0.8rem;
  color: var(--muted);
  margin-bottom: 0.2rem;
}

/* Horizontally-scrolling code block for all long response content (body,
   streamed output, raw SSE, attest info). */
.code-block {
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 0.6rem;
  margin: 0;
  max-width: 100%;
  white-space: pre;
  overflow-x: auto;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.8rem;
  line-height: 1.4;
}

.resp-headers {
  max-width: 100%;
  overflow-x: auto;
}
.resp-headers table {
  border-collapse: collapse;
}
.resp-headers td {
  padding: 0.15rem 0.5rem 0.15rem 0;
  vertical-align: top;
  font-size: 0.8rem;
}
.resp-headers td.label {
  color: var(--muted);
  white-space: nowrap;
}

.response-body .err {
  color: var(--err);
}
.response-body .label {
  color: var(--muted);
}
.response-body details {
  margin-top: 0.6rem;
}

.hint {
  color: var(--muted);
  font-size: 0.8rem;
  margin: 0;
}