@font-face {
  font-family: "DM Sans";
  src: url("assets/dm-sans.woff2") format("woff2");
  font-style: normal;
  font-weight: 400 700;
  font-display: swap;
}

:root {
  color-scheme: dark;
  --background: #0d1117;
  --surface: #171d26;
  --surface-raised: #202835;
  --ink: #f5f7fa;
  --muted: #a3b1c4;
  --border: #374455;
  --subtle-border: #242d3a;
  --accent: #5aa8e8;
  --warning: #ffd699;
}

* { box-sizing: border-box; }

html, body { min-height: 100%; }

body {
  margin: 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background:
    radial-gradient(circle at 50% 35%, rgba(90, 168, 232, 0.055), transparent 31rem),
    var(--background);
  color: var(--ink);
  font-family: "DM Sans", Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
}

.site-header {
  width: 100%;
  min-height: 72px;
  padding: 16px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand {
  min-height: 40px;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 0 16px;
  border-radius: 10px;
}

.brand:focus-visible,
.primary-button:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 3px;
}

.brand img { display: block; filter: invert(1) hue-rotate(180deg); }
.brand-paw { width: 25px; height: 25px; }
.brand-text { width: 52px; height: auto; }

.network-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 40px;
  padding: 0 14px;
  border: 1px solid var(--subtle-border);
  border-radius: 12px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 500;
}

.network-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--warning);
  box-shadow: 0 0 0 4px rgba(255, 214, 153, 0.12);
}

.migration-strip {
  width: 100%;
  min-height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  border-top: 1px solid var(--subtle-border);
  border-bottom: 1px solid var(--subtle-border);
  background: rgba(23, 29, 38, 0.72);
  color: var(--muted);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.16em;
}

.strip-arrow { color: var(--accent); font-size: 15px; line-height: 1; }

main {
  width: 100%;
  flex: 1;
  display: grid;
  place-items: center;
  padding: 72px 20px 88px;
}

.notice-card {
  width: min(100%, 620px);
  padding: 40px;
  border: 1px solid var(--border);
  border-radius: 16px;
  background: linear-gradient(145deg, rgba(32, 40, 53, 0.84), rgba(23, 29, 38, 0.96));
  box-shadow: 0 18px 70px rgba(0, 0, 0, 0.28), 0 1px 0 rgba(255, 255, 255, 0.035) inset;
}

.eyebrow {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 24px;
  color: var(--warning);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.eyebrow-mark {
  width: 22px;
  height: 22px;
  display: grid;
  place-items: center;
  border: 1px solid rgba(255, 214, 153, 0.42);
  border-radius: 50%;
  background: rgba(255, 214, 153, 0.08);
  font-size: 12px;
}

h1 {
  max-width: 540px;
  margin: 0;
  font-size: clamp(34px, 6vw, 52px);
  font-weight: 600;
  line-height: 1.04;
  letter-spacing: -0.045em;
  text-wrap: balance;
}

.copy {
  margin: 30px 0 32px;
  color: #cbd5e1;
  font-size: 16px;
  line-height: 1.65;
  text-wrap: pretty;
}

.copy p { margin: 0; }
.copy p + p { margin-top: 18px; }

.primary-button {
  width: 100%;
  min-height: 52px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  padding: 14px 20px;
  border-radius: 12px;
  background: var(--ink);
  color: var(--background);
  font-size: 14px;
  font-weight: 700;
  text-decoration: none;
  box-shadow: 0 1px 1px rgba(255, 255, 255, 0.16) inset, 0 3px 10px rgba(0, 0, 0, 0.24);
  transition: transform 140ms ease, background-color 140ms ease, box-shadow 140ms ease;
}

.primary-button:hover {
  transform: translateY(-1px);
  background: #ffffff;
  box-shadow: 0 1px 1px rgba(255, 255, 255, 0.16) inset, 0 7px 18px rgba(0, 0, 0, 0.32);
}

.primary-button:active { transform: translateY(1px); }

footer {
  min-height: 52px;
  padding: 14px 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border-top: 1px solid var(--subtle-border);
  color: #718096;
  font-size: 12px;
}

.footer-separator { color: var(--border); }

@media (max-width: 640px) {
  .site-header { min-height: 64px; padding: 12px; }
  .brand { padding: 0 4px; }
  .network-pill { min-height: 36px; padding: 0 11px; font-size: 12px; }
  main { place-items: start center; padding: 40px 12px 56px; }
  .notice-card { padding: 28px 22px 24px; border-radius: 14px; }
  .eyebrow { margin-bottom: 20px; }
  h1 { font-size: clamp(32px, 10vw, 42px); }
  .copy { margin: 25px 0 28px; font-size: 15px; line-height: 1.62; }
  footer { flex-wrap: wrap; text-align: center; }
}

@media (prefers-reduced-motion: reduce) {
  .primary-button { transition: none; }
}