:root {
  color-scheme: light dark;
  --background: #f6f7fa;
  --surface: #eceff5;
  --ink: #172a49;
  --secondary: #52617a;
  --line: #dbe1eb;
  --accent: #375dce;
  --status: #b87724;
  font-family: "Segoe UI", Arial, sans-serif;
  background: var(--background);
  color: var(--ink);
  font-synthesis: none;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}
* { box-sizing: border-box; }
body { margin: 0; }
.page {
  width: min(100% - 96px, 1120px);
  margin-inline: auto;
  min-height: 100svh;
  display: flex;
  flex-direction: column;
}
.site-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
  padding-block: 35px;
  border-bottom: 1px solid var(--line);
}
.wordmark { font-size: 34px; font-weight: 750; letter-spacing: -1.8px; line-height: 1; }
.wordmark span { color: var(--accent); }
.header-label { color: var(--secondary); font-size: 13px; letter-spacing: .02em; }
main { padding-block: clamp(70px, 12vh, 135px); flex: 1; max-width: 770px; }
.status {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--secondary);
  text-transform: uppercase;
  letter-spacing: .14em;
  font-size: 11px;
  font-weight: 650;
}
.status-dot { height: 7px; width: 7px; border-radius: 50%; background: var(--status); }
h1 {
  margin: 27px 0 28px;
  font-size: clamp(46px, 6.6vw, 82px);
  letter-spacing: -.055em;
  font-weight: 650;
  line-height: 1.06;
}
p { margin: 0; }
.intro { font-size: clamp(18px, 2vw, 22px); line-height: 1.6; max-width: 560px; }
.thanks { margin-top: 10px; color: var(--secondary); font-size: 17px; line-height: 1.7; }
.notice { display: flex; gap: 13px; align-items: flex-start; margin-top: 42px; max-width: 600px; }
.notice-mark {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  margin-top: 2px;
  width: 21px;
  height: 21px;
  border: 1px solid var(--line);
  border-radius: 50%;
  color: var(--secondary);
  font-family: Georgia, serif;
  font-size: 14px;
}
.notice p { color: var(--secondary); font-size: 14px; line-height: 1.7; }
footer {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  padding-block: 26px;
  border-top: 1px solid var(--line);
  color: var(--secondary);
  font-size: 12px;
}
@media (prefers-color-scheme: dark) {
  :root {
    --background: #111a2b;
    --surface: #1a263c;
    --ink: #edf2fb;
    --secondary: #aebbd0;
    --line: #2b3951;
    --accent: #91a9ff;
    --status: #dcb077;
  }
}
@media (max-width: 580px) {
  .page { width: calc(100% - 48px); }
  .site-header { padding-block: 26px; gap: 16px; }
  .header-label { max-width: 140px; text-align: right; line-height: 1.6; font-size: 12px; }
  main { padding-block: 66px 78px; }
  .notice { margin-top: 34px; }
}
@media (max-width: 350px) {
  .page { width: calc(100% - 36px); }
  h1 { font-size: 43px; }
  footer { font-size: 11px; }
}