:root {
  --bg: #faf7f0;
  --bg-alt: #dde2e4;
  --bg-deep: #1f4a4a;
  --ink: #14120f;
  --ink-soft: #6c6659;
  --ink-inv: #faf7f0;
  --red: #d2402f;
  --ochre: #a97f18;
  --serif: Georgia, "Times New Roman", serif;
  --sans: system-ui, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --gap: 24px;
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.8;
  overflow-x: hidden;
}

img {
  display: block;
  max-width: 100%;
  height: auto;
}

a {
  color: var(--red);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-thickness: 1px;
}

a:hover { text-decoration-thickness: 2px; }

a:focus-visible,
:focus-visible {
  outline: 2px solid var(--red);
  outline-offset: 3px;
}

/* ---------- grid ---------- */

.wrap {
  width: 100%;
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 24px;
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  column-gap: var(--gap);
}

.text { grid-column: 4 / span 6; max-width: 68ch; }
.list { grid-column: 4 / span 7; }
.fig  { grid-column: 3 / span 8; }
.full { grid-column: 1 / -1; }

/* ---------- typography ---------- */

h1, h2, h3 {
  font-family: var(--serif);
  font-weight: 400;
  margin: 0;
}

h1 {
  font-size: clamp(2.1rem, 4.6vw, 3.1rem);
  line-height: 1.18;
  letter-spacing: -0.005em;
}

h2 {
  font-size: clamp(1.35rem, 2.2vw, 1.65rem);
  line-height: 1.3;
  margin-bottom: 24px;
}

h3 {
  font-size: 1.06rem;
  line-height: 1.45;
  margin: 40px 0 10px;
}

p { margin: 0 0 22px; }

p:last-child { margin-bottom: 0; }

.lead {
  font-size: 21px;
  line-height: 1.72;
}

.caption {
  font-size: 12px;
  line-height: 1.6;
  color: var(--ink-soft);
  letter-spacing: 0.02em;
  margin-top: 16px;
  text-align: center;
}

.num {
  display: block;
  font-family: var(--serif);
  font-size: 12px;
  letter-spacing: 0.24em;
  color: var(--ochre);
  margin-bottom: 18px;
}

ul, ol {
  margin: 0 0 22px;
  padding-left: 22px;
}

li { margin-bottom: 12px; }

li::marker { color: var(--red); }

ol li::marker { font-family: var(--serif); }

/* ---------- header / nav ---------- */

.site-head { padding: 34px 0 0; }

.nav ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 14px 40px;
}

.nav a {
  font-size: 13px;
  letter-spacing: 0.14em;
  color: var(--ink-soft);
  text-decoration: none;
}

.nav a:hover,
.nav a[aria-current="page"] { color: var(--red); }

/* ---------- hero ---------- */

.hero {
  min-height: 76vh;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 120px 0 0;
}

.hero .wrap { row-gap: 0; }

.hero h1 { text-align: center; }

.hero-sub {
  grid-column: 4 / span 6;
  text-align: center;
  color: var(--ink-soft);
  font-size: 16px;
  margin: 26px 0 0;
}

/* ---------- sections ---------- */

section { padding: 128px 0; }

.band { background: var(--bg-alt); }

.deep {
  background: var(--bg-deep);
  color: var(--ink-inv);
}

.deep h2, .deep h3 { color: var(--ink-inv); }

.deep .num { color: #e0c56f; }

.deep .caption { color: rgba(250, 247, 240, 0.72); text-align: left; }

.deep a { color: #f0b8a8; }

.deep li::marker { color: #f0b8a8; }

.deep .wrap { align-items: center; row-gap: 48px; }

.deep-fig { grid-column: 2 / span 4; }

.deep-text { grid-column: 7 / span 5; }

.figure-main {
  padding: 96px 0;
}

.figure-main .fig { margin: 0; }

/* ---------- about page ---------- */

.page-head { padding: 96px 0 0; }

.page-head h1 { grid-column: 4 / span 6; }

.doc section { padding: 88px 0 0; }

.doc section:last-of-type { padding-bottom: 128px; }

.rule {
  grid-column: 4 / span 6;
  text-align: center;
  color: var(--ochre);
  font-family: var(--serif);
  letter-spacing: 0.4em;
  margin: 96px 0 0;
}

/* ---------- footer ---------- */

.site-foot {
  background: var(--bg-alt);
  padding: 120px 0 104px;
  text-align: center;
}

.site-foot .wrap { row-gap: 0; }

.foot-inner { grid-column: 3 / span 8; }

.foot-name {
  font-family: var(--serif);
  font-size: 1.4rem;
  margin-bottom: 30px;
}

.foot-nav ul {
  list-style: none;
  margin: 0 0 30px;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px 36px;
}

.foot-nav a {
  font-size: 13px;
  letter-spacing: 0.12em;
  color: var(--ink-soft);
  text-decoration: none;
}

.foot-nav a:hover { color: var(--red); }

.foot-mail { margin-bottom: 26px; }

.foot-note {
  font-size: 12px;
  line-height: 1.7;
  color: var(--ink-soft);
  max-width: 56ch;
  margin: 0 auto;
}

/* ---------- responsive ---------- */

@media (max-width: 1000px) {
  .text { grid-column: 3 / span 8; }
  .list { grid-column: 3 / span 8; }
  .fig  { grid-column: 2 / span 10; }
  .hero-sub { grid-column: 3 / span 8; }
  .page-head h1 { grid-column: 3 / span 8; }
  .rule { grid-column: 3 / span 8; }
  .foot-inner { grid-column: 2 / span 10; }
  .deep-fig { grid-column: 1 / span 5; }
  .deep-text { grid-column: 7 / span 6; }
}

@media (max-width: 780px) {
  body { font-size: 16px; }
  .wrap {
    display: block;
    padding: 0 20px;
  }
  .text, .list, .fig, .hero-sub,
  .page-head h1, .rule, .foot-inner,
  .deep-fig, .deep-text { max-width: none; }
  section { padding: 72px 0; }
  .figure-main { padding: 56px 0; }
  .hero {
    min-height: auto;
    padding: 64px 0 8px;
  }
  .doc section { padding: 56px 0 0; }
  .doc section:last-of-type { padding-bottom: 72px; }
  .rule { margin-top: 56px; }
  .page-head { padding: 64px 0 0; }
  .deep-fig { margin-bottom: 40px; }
  .deep-fig img { width: 100%; }
  .lead { font-size: 19px; }
  .site-foot { padding: 72px 0 64px; }
  .nav ul { gap: 10px 24px; }
}