:root {
  --coral: #ff4f7b;
  --coral-2: #ff7aa7;
  --ink: #0b1020;
  --muted: rgba(11, 16, 32, 0.68);
  --line: rgba(11, 16, 32, 0.11);
  --surface: rgba(255, 255, 255, 0.78);
  --shadow: 0 24px 70px rgba(10, 16, 32, 0.10);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  font-family: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont,
    "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background:
    radial-gradient(1000px 700px at 10% 0%, rgba(255, 79, 123, 0.16), transparent 55%),
    radial-gradient(900px 700px at 95% 20%, rgba(255, 122, 167, 0.13), transparent 55%),
    linear-gradient(180deg, #ffffff, #fff7fa 55%, #ffffff);
}

a {
  color: #d92f60;
}

a:hover {
  color: #a91e48;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  border-bottom: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.84);
  backdrop-filter: blur(16px);
}

.topbar__inner {
  width: min(960px, calc(100% - 30px));
  margin: auto;
  padding: 14px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--ink);
  text-decoration: none;
  font-weight: 800;
}

.brand__dot {
  width: 11px;
  height: 11px;
  border-radius: 999px;
  background: var(--coral);
  box-shadow: 0 0 0 7px rgba(255, 79, 123, 0.16);
}

.home-link {
  color: var(--muted);
  text-decoration: none;
  font-weight: 650;
}

.page {
  width: min(960px, calc(100% - 30px));
  margin: 34px auto 60px;
}

.hero,
.card {
  border: 1px solid var(--line);
  border-radius: 24px;
  background: linear-gradient(
    180deg,
    rgba(255, 255, 255, 0.88),
    rgba(255, 255, 255, 0.70)
  );
  box-shadow: var(--shadow);
}

.hero {
  padding: clamp(26px, 5vw, 50px);
}

.kicker {
  margin: 0 0 12px;
  color: #d92f60;
  font-weight: 800;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  font-size: 0.78rem;
}

h1 {
  margin: 0;
  font-size: clamp(2.1rem, 7vw, 4rem);
  line-height: 1.02;
  letter-spacing: -0.045em;
}

.lead {
  max-width: 760px;
  margin: 20px 0 0;
  color: var(--muted);
  font-size: 1.05rem;
  line-height: 1.75;
}

.updated {
  margin-top: 18px;
  color: var(--muted);
  font-size: 0.9rem;
}

.card {
  margin-top: 18px;
  padding: clamp(22px, 4vw, 38px);
}

h2 {
  margin: 0 0 14px;
  font-size: 1.45rem;
}

h3 {
  margin: 24px 0 8px;
  font-size: 1.08rem;
}

p,
li {
  line-height: 1.72;
}

p {
  margin: 10px 0;
}

ul,
ol {
  padding-left: 1.35rem;
}

.notice {
  margin-top: 20px;
  padding: 18px;
  border: 1px solid rgba(255, 79, 123, 0.24);
  border-radius: 16px;
  background: rgba(255, 79, 123, 0.07);
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 22px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 12px 17px;
  border-radius: 14px;
  font-weight: 800;
  text-decoration: none;
}

.button--primary {
  color: white;
  background: linear-gradient(135deg, var(--coral), var(--coral-2));
  box-shadow: 0 14px 30px rgba(255, 79, 123, 0.22);
}

.button--primary:hover {
  color: white;
}

.button--secondary {
  color: var(--ink);
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.72);
}

.footer {
  width: min(960px, calc(100% - 30px));
  margin: 0 auto 34px;
  color: var(--muted);
  text-align: center;
  line-height: 1.8;
}

.footer a {
  color: inherit;
}

.code {
  overflow-wrap: anywhere;
  padding: 2px 7px;
  border-radius: 8px;
  background: rgba(11, 16, 32, 0.06);
  font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
}

@media (max-width: 620px) {
  .topbar__inner {
    align-items: flex-start;
  }

  .home-link {
    font-size: 0.9rem;
  }

  .page {
    margin-top: 20px;
  }
}