:root {
  --bg: #0f1115;
  --panel: #171a21;
  --panel-2: #1e2229;
  --line: #2b313b;
  --ink: #e6e9ef;
  --dim: #8b93a1;
  --accent: #4f8cff;
  --accent-ink: #ffffff;
  --err: #ff7b7b;
  --mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
}

@media (prefers-color-scheme: light) {
  :root:not([data-theme="dark"]) {
    --bg: #f6f7f9;
    --panel: #ffffff;
    --panel-2: #f1f3f6;
    --line: #dde1e8;
    --ink: #1a1d23;
    --dim: #6b7280;
    --err: #c02626;
  }
}

* { box-sizing: border-box; }

body {
  margin: 0 auto;
  padding: 24px 16px 96px;
  max-width: 940px;
  background: var(--bg);
  color: var(--ink);
  font: 15px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

header { margin-bottom: 20px; }
h1 { margin: 0; font-size: 22px; letter-spacing: -0.01em; }
h2 { margin: 0 0 12px; font-size: 18px; }
h3 { margin: 22px 0 8px; font-size: 14px; text-transform: uppercase; letter-spacing: 0.06em; color: var(--dim); }
.sub { margin: 4px 0 0; color: var(--dim); font-size: 13px; }
a { color: var(--accent); }

section { margin-bottom: 28px; }

fieldset, details {
  margin: 0 0 14px;
  padding: 14px 16px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--panel);
}
legend, summary {
  padding: 0 6px;
  color: var(--dim);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}
summary { padding: 0; cursor: pointer; }
details[open] summary { margin-bottom: 12px; }

label { display: block; margin-bottom: 12px; font-size: 13px; color: var(--dim); }
label:last-child { margin-bottom: 0; }

input, select, textarea {
  display: block;
  width: 100%;
  margin-top: 5px;
  padding: 8px 10px;
  border: 1px solid var(--line);
  border-radius: 7px;
  background: var(--panel-2);
  color: var(--ink);
  font: 13px/1.4 var(--mono);
}
textarea { resize: vertical; }
input:focus, select:focus, textarea:focus { outline: 2px solid var(--accent); outline-offset: -1px; }

.with-btn { display: flex; gap: 6px; align-items: flex-end; }
.with-btn input { flex: 1; }

button {
  padding: 8px 14px;
  border: 1px solid transparent;
  border-radius: 7px;
  background: var(--accent);
  color: var(--accent-ink);
  font: 600 13px/1.2 inherit;
  cursor: pointer;
  white-space: nowrap;
}
button:disabled { opacity: 0.45; cursor: not-allowed; }
button.ghost { background: var(--panel-2); border-color: var(--line); color: var(--ink); font-weight: 500; }

.actions { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; margin: 14px 0; }

.hint { margin: 8px 0 0; color: var(--dim); font-size: 12px; line-height: 1.5; }
.req { color: var(--err); }
.dim { color: var(--dim); }
.err { color: var(--err); font-size: 13px; }
.mono, code { font-family: var(--mono); font-size: 12px; }
.wrap { word-break: break-all; }

.tag {
  margin-left: 6px; padding: 1px 6px;
  border: 1px solid var(--line); border-radius: 20px;
  background: var(--panel-2); color: var(--dim);
  font-size: 10px; text-transform: none; letter-spacing: 0;
}

pre {
  margin: 0; padding: 12px 14px;
  border: 1px solid var(--line); border-radius: 9px;
  background: var(--panel-2);
  font: 12px/1.5 var(--mono);
  white-space: pre-wrap; word-break: break-word;
  max-height: 460px; overflow: auto;
}

.cols { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
@media (max-width: 720px) { .cols { grid-template-columns: 1fr; } }

.kv { margin-top: 14px; display: grid; gap: 8px; }
.kv > div { display: grid; grid-template-columns: 90px 1fr; gap: 10px; align-items: baseline; font-size: 12px; }
.kv code {
  padding: 3px 7px; border: 1px solid var(--line); border-radius: 5px;
  background: var(--panel-2);
}

table.params {
  width: 100%; margin-top: 4px;
  border: 1px solid var(--line); border-radius: 9px;
  border-collapse: separate; border-spacing: 0;
  overflow: hidden; background: var(--panel);
}
table.params th, table.params td {
  padding: 7px 11px;
  border-bottom: 1px solid var(--line);
  text-align: left; vertical-align: top; font-size: 12px;
}
table.params th {
  background: var(--panel-2); color: var(--dim);
  font-weight: 600; text-transform: uppercase; letter-spacing: 0.05em; font-size: 10.5px;
}
table.params tr:last-child td { border-bottom: none; }