:root {
  --ink: #17212b;
  --muted: #5c6873;
  --paper: #f7f5ef;
  --panel: rgba(255, 255, 255, 0.78);
  --line: #d7d3c8;
  --accent: #217a78;
  --accent-soft: #dcebea;
}

* {
  box-sizing: border-box;
}

html {
  min-height: 100%;
  background: var(--paper);
}

body {
  min-height: 100vh;
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(circle at 84% 14%, rgba(33, 122, 120, 0.11), transparent 27rem),
    linear-gradient(135deg, #faf9f5 0%, var(--paper) 55%, #eeece4 100%);
  font-family: Inter, "Helvetica Neue", Arial, "Hiragino Kaku Gothic ProN", "Yu Gothic", sans-serif;
}

.page {
  width: min(1120px, calc(100% - 40px));
  min-height: 100vh;
  margin: 0 auto;
  padding: clamp(28px, 6vw, 76px) 0 28px;
  display: grid;
  grid-template-rows: auto 1fr auto;
  gap: clamp(56px, 9vw, 110px);
}

.masthead {
  display: flex;
  align-items: center;
  gap: 24px;
  padding-bottom: 28px;
  border-bottom: 1px solid var(--line);
}

.mark {
  width: 88px;
  aspect-ratio: 1;
  display: grid;
  place-items: center;
  flex: 0 0 auto;
  border: 1px solid var(--accent);
  border-radius: 50%;
  color: var(--accent);
  background: var(--panel);
  font-family: Georgia, "Yu Mincho", serif;
  font-size: 1.65rem;
  letter-spacing: 0.06em;
}

.eyebrow,
.section-number {
  margin: 0 0 9px;
  color: var(--accent);
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.2em;
}

h1,
h2,
p {
  margin-top: 0;
}

h1 {
  margin-bottom: 8px;
  font-family: Georgia, "Yu Mincho", serif;
  font-size: clamp(2rem, 5vw, 4rem);
  font-weight: 500;
  letter-spacing: 0.04em;
  line-height: 1.05;
}

.status {
  margin-bottom: 0;
  color: var(--muted);
  font-size: 0.98rem;
  letter-spacing: 0.08em;
}

.intro {
  width: min(780px, 100%);
  display: grid;
  grid-template-columns: 7px 1fr;
  gap: clamp(22px, 4vw, 40px);
  align-self: center;
  padding: clamp(28px, 5vw, 58px);
  border: 1px solid rgba(215, 211, 200, 0.85);
  background: var(--panel);
  box-shadow: 0 24px 70px rgba(29, 43, 52, 0.07);
}

.rule {
  min-height: 100%;
  background: linear-gradient(var(--accent), #68aaa7);
}

h2 {
  max-width: 690px;
  margin-bottom: 22px;
  font-family: Georgia, "Yu Mincho", serif;
  font-size: clamp(1.8rem, 4vw, 3rem);
  font-weight: 500;
  line-height: 1.18;
}

.intro p:last-child {
  max-width: 650px;
  margin-bottom: 0;
  color: var(--muted);
  font-size: clamp(1rem, 1.5vw, 1.12rem);
  line-height: 1.75;
}

footer {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  padding-top: 18px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.75rem;
  letter-spacing: 0.12em;
}

@media (max-width: 620px) {
  .page {
    width: min(100% - 28px, 1120px);
  }

  .masthead {
    align-items: flex-start;
    gap: 16px;
  }

  .mark {
    width: 64px;
    font-size: 1.15rem;
  }

  .intro {
    grid-template-columns: 5px 1fr;
    gap: 18px;
    padding: 26px 22px;
  }

  footer {
    flex-direction: column;
  }
}

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