:root {
  color-scheme: light;
  --ink: #111111;
  --text-2: #5c5c5c;
  --text-3: #8a8a8a;
  --line: #e4e4e4;
  --line-2: #cfcfcf;
  --surface: #fafafa;
  --paper: #ffffff;
  --danger: #b3261e;
  --radius: 4px;
  --sans: "Helvetica Neue", Helvetica, Arial, sans-serif;
  --mono: "SF Mono", Menlo, Consolas, monospace;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font: 14px/1.5 var(--sans);
  color: var(--ink);
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
}
h1 { margin: 0; font-size: 20px; font-weight: 600; letter-spacing: -0.01em; }
h2 { margin: 0; font-size: 14px; font-weight: 600; }
a { color: var(--ink); }
code, pre { font-family: var(--mono); font-size: 12.5px; }
button { font: inherit; color: inherit; cursor: pointer; }
button:disabled { cursor: default; }
[hidden] { display: none !important; }

.topnav { border-bottom: 1px solid var(--line); }
.topnav-inner {
  max-width: 1080px;
  height: 52px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  gap: 32px;
}
.wordmark { font-weight: 600; font-size: 15px; text-decoration: none; letter-spacing: -0.01em; }
.topnav-links { display: flex; gap: 24px; height: 100%; }
.topnav-links a {
  display: flex;
  align-items: center;
  color: var(--text-2);
  text-decoration: none;
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
}
.topnav-links a:hover { color: var(--ink); }
.topnav-links a[aria-current="page"] { color: var(--ink); border-bottom-color: var(--ink); }

.page-head { max-width: 1080px; margin: 0 auto; padding: 28px 24px 0; }
.page-head::after { content: ""; display: block; margin-top: 20px; border-bottom: 1px solid var(--line); }
.page-head p { margin: 4px 0 0; color: var(--text-2); max-width: 640px; }

.hint, .note { margin: 0; color: var(--text-2); font-size: 13px; }
.label {
  margin: 0 0 8px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-3);
}

.tool, .primary, .danger-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  height: 32px;
  padding: 0 12px;
  border-radius: var(--radius);
  font-size: 13px;
  white-space: nowrap;
}
.tool { border: 1px solid var(--line-2); background: var(--paper); color: var(--ink); }
.tool:hover:not(:disabled) { border-color: var(--ink); }
.tool svg { width: 14px; height: 14px; }
.primary { border: 1px solid var(--ink); background: var(--ink); color: var(--paper); }
.primary:hover:not(:disabled) { background: #2b2b2b; }
.danger-button { border: 1px solid var(--danger); background: var(--paper); color: var(--danger); }
.tool:disabled, .primary:disabled, .danger-button:disabled {
  border-color: var(--line);
  background: var(--paper);
  color: var(--text-3);
}
.tool:focus-visible, .primary:focus-visible, .danger-button:focus-visible { outline: 2px solid var(--ink); outline-offset: 2px; }

label { display: block; font-size: 12px; color: var(--text-2); }
input:not([type="range"]):not([type="radio"]):not([type="color"]):not([type="file"]), textarea, select {
  width: 100%;
  margin-top: 4px;
  padding: 7px 10px;
  border: 1px solid var(--line-2);
  border-radius: var(--radius);
  font: inherit;
  font-size: 14px;
  color: var(--ink);
  background: var(--paper);
}
input::placeholder, textarea::placeholder { color: var(--text-3); }
input[readonly], select:disabled { background: var(--surface); color: var(--text-2); border-color: var(--line); }
input:focus, textarea:focus, select:focus { outline: 1px solid var(--ink); outline-offset: 0; border-color: var(--ink); }
textarea { min-height: 72px; resize: vertical; }

.bar {
  position: sticky;
  top: 0;
  z-index: 2;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 12px;
  padding: 12px 0;
  background: var(--paper);
  border-bottom: 1px solid var(--line);
}
.title { flex: 1; min-width: 0; display: flex; align-items: baseline; gap: 12px; }
.title strong { font-size: 16px; font-weight: 600; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.dirty { font-size: 12px; color: var(--text-2); white-space: nowrap; }
.dirty::before { content: "● "; font-size: 8px; vertical-align: 2px; color: var(--ink); }
.tools { display: flex; gap: 6px; }
.status { flex-basis: 100%; margin: 0; font-size: 13px; color: var(--text-2); }
.status.error { color: var(--danger); }

details > summary { display: flex; align-items: center; gap: 8px; cursor: pointer; list-style: none; }
details > summary::-webkit-details-marker { display: none; }
details > summary::before {
  content: "";
  flex: none;
  width: 6px;
  height: 6px;
  margin: 0 4px 0 2px;
  border-right: 1.5px solid var(--text-2);
  border-bottom: 1.5px solid var(--text-2);
  transform: rotate(-45deg);
  transition: transform 0.12s;
}
details[open] > summary::before { transform: rotate(45deg); }

dialog {
  margin: auto;
  padding: 0;
  border: 1px solid var(--line-2);
  border-radius: var(--radius);
  background: var(--paper);
  color: var(--ink);
}
dialog::backdrop { background: rgba(17, 17, 17, 0.35); }
#confirm-dialog { width: min(420px, calc(100vw - 32px)); padding: 20px; }
#confirm-dialog p { margin: 0 0 16px; font-size: 14px; }
#confirm-dialog .choices { display: flex; justify-content: flex-end; gap: 8px; }
#confirm-dialog .choices button {
  height: 32px;
  padding: 0 14px;
  border: 1px solid var(--line-2);
  border-radius: var(--radius);
  background: var(--paper);
  font-size: 13px;
}
#confirm-dialog #confirm-ok { border-color: var(--ink); background: var(--ink); color: var(--paper); }
#confirm-dialog #confirm-ok.danger { border-color: var(--danger); background: var(--danger); color: var(--paper); }