:root {
  color-scheme: light;
  --navy: #0d2457;
  --navy-deep: #071631;
  --blue: #1c4b9a;
  --text: #263247;
  --muted: #647086;
  --line: rgba(13, 36, 87, 0.14);
  --surface: rgba(255, 255, 255, 0.92);
}

* {
  box-sizing: border-box;
}

html {
  min-height: 100%;
  background: #edf2f8;
}

body {
  min-height: 100vh;
  margin: 0;
  color: var(--text);
  font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background:
    radial-gradient(circle at 18% 12%, rgba(75, 124, 199, 0.16), transparent 34rem),
    radial-gradient(circle at 88% 86%, rgba(13, 36, 87, 0.12), transparent 30rem),
    linear-gradient(145deg, #f7f9fc, #e8eef6);
}

.page-shell {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: clamp(1.25rem, 4vw, 4rem);
}

.notice {
  position: relative;
  width: min(100%, 48rem);
  overflow: hidden;
  padding: clamp(2.25rem, 7vw, 5rem);
  text-align: center;
  background: var(--surface);
  border: 1px solid rgba(255, 255, 255, 0.75);
  border-radius: 1.5rem;
  box-shadow: 0 1.5rem 4rem rgba(7, 22, 49, 0.14);
}

.notice::before {
  content: "";
  position: absolute;
  inset: 0 0 auto;
  height: 0.35rem;
  background: linear-gradient(90deg, var(--navy-deep), var(--blue));
}

.eyebrow {
  margin: 0 0 1.5rem;
  color: var(--blue);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

h1 {
  max-width: 12ch;
  margin: 0 auto;
  color: var(--navy-deep);
  font-size: clamp(2.15rem, 7vw, 4.35rem);
  font-weight: 750;
  letter-spacing: -0.045em;
  line-height: 1.02;
}

.thanks {
  max-width: 35rem;
  margin: 1.75rem auto 0;
  color: var(--muted);
  font-size: clamp(1rem, 2.3vw, 1.15rem);
  line-height: 1.75;
}

.sale-block {
  margin: clamp(2rem, 5vw, 3rem) auto 0;
  padding: 1.2rem 1.4rem;
  color: var(--navy);
  font-weight: 650;
  line-height: 1.55;
  background: rgba(28, 75, 154, 0.07);
  border: 1px solid var(--line);
  border-radius: 0.9rem;
}

.sale-block p,
.contact-block p {
  margin: 0;
}

.contact-block {
  margin-top: 2.25rem;
  color: var(--muted);
  font-size: 0.92rem;
}

.contact-email {
  display: block;
  width: min(100%, 19rem);
  height: auto;
  margin: 0.7rem auto 0;
  user-select: none;
}

footer {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  margin-top: clamp(2.5rem, 6vw, 4rem);
  padding-top: 1.5rem;
  color: var(--navy-deep);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.11em;
  text-transform: uppercase;
  border-top: 1px solid var(--line);
}

footer::before {
  content: "";
  width: 1.75rem;
  height: 0.16rem;
  background: var(--blue);
  border-radius: 999px;
}

@media (max-width: 34rem) {
  .notice {
    padding-inline: 1.4rem;
    border-radius: 1.1rem;
  }

  .sale-block {
    padding-inline: 1rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
  }
}