:root {
  --bg: #fbfcfb;
  --surface: #ffffff;
  --fg: #1c2530;
  --muted: #5b6878;
  --line: #d9e0e8;
  --soft: #eef4f0;
  --accent: #1f6f43;
  --accent-hover: #185735;
  --accent-fg: #ffffff;
  --warn-bg: #fff4e0;
  --warn-fg: #7a4a00;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #161b21;
    --surface: #1e252d;
    --fg: #e8edf2;
    --muted: #a2afbd;
    --line: #36404c;
    --soft: #212b26;
    --accent: #3fa86b;
    --accent-hover: #58bd82;
    --accent-fg: #0d1a12;
    --warn-bg: #3a2c10;
    --warn-fg: #f0c476;
  }
}
* {
  box-sizing: border-box;
}
[hidden] {
  display: none !important;
}
body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font: 16px/1.85 "Yu Gothic UI", "Hiragino Sans", "Noto Sans JP", "Meiryo", sans-serif;
}
a {
  color: var(--accent);
}
.wrap {
  max-width: 760px;
  margin: 0 auto;
  padding: 0 16px;
}
header.site {
  border-bottom: 1px solid var(--line);
  background: var(--surface);
}
header.site .wrap {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 8px 20px;
  padding-top: 14px;
  padding-bottom: 14px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--fg);
  font-weight: 700;
  font-size: 18px;
  text-decoration: none;
}
.brand img {
  width: 32px;
  height: 32px;
}
nav.main {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 18px;
  font-size: 14px;
}
main {
  padding: 40px 0 64px;
}
h1 {
  margin: 0 0 16px;
  font-size: 28px;
  line-height: 1.4;
  text-wrap: balance;
}
h2 {
  margin: 48px 0 12px;
  padding-left: 12px;
  border-left: 4px solid var(--accent);
  font-size: 20px;
  line-height: 1.5;
}
.lead {
  font-size: 17px;
}
.button {
  display: inline-block;
  padding: 12px 26px;
  border: 0;
  border-radius: 8px;
  background: var(--accent);
  color: var(--accent-fg);
  font: inherit;
  font-weight: 700;
  text-decoration: none;
  cursor: pointer;
}
.button:hover {
  background: var(--accent-hover);
}
.button.secondary {
  border: 1px solid var(--line);
  background: var(--surface);
  color: var(--fg);
  font-weight: 400;
}
.button:focus-visible,
a:focus-visible,
input:focus-visible,
textarea:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}
.cta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 24px 0 8px;
}
.note {
  color: var(--muted);
  font-size: 14px;
}
.alert {
  padding: 12px 16px;
  border-radius: 8px;
  background: var(--warn-bg);
  color: var(--warn-fg);
}
.cards {
  display: grid;
  gap: 12px;
  margin: 16px 0;
  padding: 0;
  list-style: none;
}
.cards li {
  padding: 16px 18px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--surface);
}
.cards strong {
  display: block;
}
.table-scroll {
  overflow-x: auto;
}
table.plain {
  width: 100%;
  border-collapse: collapse;
  background: var(--surface);
  font-size: 15px;
}
table.plain th,
table.plain td {
  padding: 10px 12px;
  border: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}
table.plain th {
  background: var(--soft);
  white-space: nowrap;
}
table.plain td.center,
table.plain th.center {
  text-align: center;
}
dl.rows {
  margin: 24px 0;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--surface);
}
dl.rows > div {
  display: grid;
  gap: 4px 20px;
  padding: 14px 18px;
  border-bottom: 1px solid var(--line);
}
dl.rows > div:last-child {
  border-bottom: 0;
}
@media (min-width: 640px) {
  dl.rows > div {
    grid-template-columns: 11rem 1fr;
  }
}
dl.rows dt {
  font-weight: 700;
}
dl.rows dd {
  margin: 0;
}
form.stack {
  display: grid;
  gap: 14px;
  max-width: 560px;
}
form.stack label {
  display: grid;
  gap: 4px;
  font-weight: 700;
}
input[type="text"],
input[type="email"],
textarea {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  color: var(--fg);
  font: inherit;
}
.key-box {
  padding: 14px 16px;
  border: 1px solid var(--accent);
  border-radius: 8px;
  background: var(--soft);
  font-family: Consolas, "Courier New", monospace;
  font-size: 14px;
  overflow-wrap: anywhere;
}
.hp {
  position: absolute;
  left: -9999px;
}
footer.site {
  border-top: 1px solid var(--line);
  background: var(--surface);
  color: var(--muted);
  font-size: 14px;
}
footer.site .wrap {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 18px;
  padding-top: 20px;
  padding-bottom: 28px;
}
footer.site .copy {
  flex-basis: 100%;
}
code,
pre {
  font-family: Consolas, "Courier New", monospace;
  font-size: 0.9em;
}
code {
  padding: 1px 5px;
  border-radius: 4px;
  background: var(--soft);
}
pre {
  margin: 16px 0;
  padding: 12px 16px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  overflow-x: auto;
}
pre code {
  padding: 0;
  background: none;
}
.cards a {
  font-weight: 700;
}

.shot {
  margin: 20px 0 8px;
}
.shot img {
  display: block;
  max-width: 100%;
  height: auto;
  border: 1px solid var(--line);
  border-radius: 10px;
}