:root {
  --umber: #2c1810;
  --teal: #4f7c8a;
  --frost: #f0f2f4;
  --paper: #f7f8fa;
  --ink: #241812;
  --mute: #5c534e;
  --line: #c9c2bb;
  --radius: 7px;
  --measure: 40rem;
  --wide: 56rem;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  color: var(--ink);
  background-color: var(--frost);
  background-image:
    radial-gradient(circle at 8% 12%, rgba(79, 124, 138, 0.07) 0 18%, transparent 19%),
    radial-gradient(circle at 8% 12%, rgba(44, 24, 16, 0.05) 0 28%, transparent 29%),
    radial-gradient(circle at 8% 12%, rgba(79, 124, 138, 0.04) 0 38%, transparent 39%);
  background-repeat: no-repeat;
  font-family: "Atkinson Hyperlegible", "Segoe UI", sans-serif;
  font-size: 1.05rem;
  line-height: 1.65;
}

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

a {
  color: var(--umber);
  text-underline-offset: 0.16em;
}

a:hover { color: var(--teal); }

h1, h2, h3 {
  font-family: "Ibarra Real Nova", Georgia, serif;
  font-weight: 600;
  line-height: 1.2;
  color: var(--umber);
}

h1 { font-size: clamp(1.85rem, 4vw, 2.55rem); margin: 0 0 1rem; }
h2 { font-size: 1.45rem; margin: 2rem 0 0.7rem; }

p { margin: 0 0 1rem; }

.skip {
  position: absolute;
  left: -999px;
  top: 0.5rem;
  background: var(--paper);
  padding: 0.4rem 0.7rem;
}

.skip:focus { left: 0.5rem; z-index: 8; }

.mast {
  border-bottom: 1px solid var(--umber);
  background: var(--paper);
}

.mast__bar {
  max-width: var(--wide);
  margin: 0 auto;
  padding: 0.9rem 1.25rem;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.85rem 1.4rem;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  text-decoration: none;
  color: var(--umber);
}

.brand img { border-radius: var(--radius); }

.brand__name {
  display: block;
  font-family: "Ibarra Real Nova", Georgia, serif;
  font-size: 1.15rem;
}

.brand__sub {
  display: block;
  font-size: 0.68rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--teal);
}

.menu-btn {
  margin-left: auto;
  background: transparent;
  border: 1px solid var(--umber);
  border-radius: var(--radius);
  color: var(--umber);
  padding: 0.35rem 0.7rem;
  font: inherit;
  font-size: 0.9rem;
}

.nav {
  display: none;
  width: 100%;
  flex-direction: column;
  gap: 0.35rem;
}

.nav.is-open { display: flex; }

.nav a {
  text-decoration: none;
  color: var(--ink);
  padding: 0.2rem 0;
}

.nav a.is-on { color: var(--umber); }

.nav__n {
  color: var(--teal);
  font-size: 0.78rem;
  margin-right: 0.25rem;
}

.shell {
  display: grid;
  grid-template-columns: 1fr;
  max-width: var(--wide);
  margin: 0 auto;
}

.index-rail { display: none; }

.hero {
  background: var(--umber);
  color: var(--frost);
  padding: 2.6rem 1.25rem 2.2rem;
}

.hero h1 { color: var(--frost); }

.hero__brand {
  font-family: "Ibarra Real Nova", Georgia, serif;
  font-size: 1.2rem;
  margin-bottom: 0.4rem;
}

.hero__lead { max-width: 36rem; color: rgba(240, 242, 244, 0.88); }

.cta {
  display: inline-block;
  margin-top: 0.4rem;
  padding: 0.55rem 1.05rem;
  border: 1px solid var(--frost);
  border-radius: var(--radius);
  color: var(--frost);
  text-decoration: none;
  background: transparent;
  font: inherit;
  cursor: pointer;
}

.cta:hover {
  background: var(--frost);
  color: var(--umber);
}

.cta--on-frost {
  border-color: var(--umber);
  color: var(--umber);
}

.cta--on-frost:hover {
  background: var(--umber);
  color: var(--frost);
}

.index-strip {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-bottom: 1px solid var(--line);
  background: var(--paper);
}

.index-strip span {
  padding: 0.7rem 1rem;
  border-right: 1px solid var(--line);
  color: var(--teal);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-size: 0.72rem;
}

.index-strip span:last-child { border-right: 0; }

.block { padding: 2rem 1.25rem 0.4rem; }

.block__lead { color: var(--mute); max-width: var(--measure); }

.page-head {
  padding: 2rem 1.25rem 0.4rem;
  max-width: var(--measure);
}

.page-head__kicker,
.sidenote__n,
.core-index__line {
  color: var(--teal);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  font-size: 0.72rem;
}

.page-head__lead { color: var(--mute); }

.inner {
  display: grid;
  gap: 1.6rem;
  padding: 0 1.25rem 2.4rem;
}

.core-index {
  list-style: none;
  margin: 0;
  padding: 0;
}

.core-index li { margin: 0; }

.core-index a {
  display: grid;
  grid-template-columns: 2.4rem 1fr;
  column-gap: 0.8rem;
  row-gap: 0.15rem;
  padding: 0.85rem 0 0.85rem 0.7rem;
  border-left: 1px solid var(--umber);
  text-decoration: none;
  color: inherit;
}

.core-index a:hover { border-left-width: 4px; }

.core-index__n {
  grid-row: 1 / span 3;
  font-family: "Ibarra Real Nova", Georgia, serif;
  color: var(--teal);
}

.core-index strong {
  font-family: "Ibarra Real Nova", Georgia, serif;
  font-weight: 600;
  color: var(--umber);
}

.core-index em {
  font-style: normal;
  color: var(--mute);
  font-size: 0.95rem;
}

.method { padding-bottom: 1.2rem; }

.method__list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.6rem 1.2rem;
  padding-left: 1.1rem;
  max-width: 32rem;
}

.method__list--long {
  grid-template-columns: 1fr;
  list-style: none;
  padding-left: 0;
}

.method__list--long li {
  border-left: 1px solid var(--umber);
  padding: 0.55rem 0 0.55rem 0.8rem;
}

.method__n { color: var(--teal); margin-right: 0.4rem; }

.note-list {
  max-width: var(--measure);
  padding-left: 1.1rem;
}

.note-list li { margin-bottom: 0.7rem; }

.address-block { padding-bottom: 2.6rem; }

.sidenote {
  border-top: 1px solid var(--umber);
  padding-top: 0.8rem;
  color: var(--mute);
  font-size: 0.95rem;
}

.facts {
  margin: 0 0 1.4rem;
}

.facts div {
  display: grid;
  grid-template-columns: 11rem 1fr;
  gap: 0.4rem 1rem;
  padding: 0.55rem 0;
  border-bottom: 1px solid var(--line);
}

.facts dt { color: var(--teal); font-size: 0.86rem; }
.facts dd { margin: 0; }

.plain { padding-left: 1.1rem; }
.plain li { margin-bottom: 0.35rem; }

.faq-item h2 {
  font-size: 1.15rem;
  display: flex;
  gap: 0.6rem;
}

.faq-item h2 span { color: var(--teal); }

.inquiry {
  display: grid;
  gap: 0.75rem;
  max-width: 26rem;
  margin: 1.4rem 0;
}

.inquiry label { display: grid; gap: 0.25rem; font-size: 0.92rem; }

.inquiry input,
.inquiry textarea {
  border: 1px solid var(--umber);
  border-radius: var(--radius);
  padding: 0.45rem 0.55rem;
  font: inherit;
  background: var(--paper);
}

.fine { font-size: 0.9rem; color: var(--mute); }

.text-link { color: var(--teal); }

.colophon {
  border-top: 1px solid var(--umber);
  background: var(--paper);
  padding: 1.6rem 1.25rem 2rem;
}

.colophon__name {
  font-family: "Ibarra Real Nova", Georgia, serif;
  font-size: 1.25rem;
  color: var(--umber);
}

.colophon__warn { color: var(--mute); max-width: 38rem; }

.colophon__dir {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem 1.1rem;
  margin: 1.1rem 0;
}

.colophon__dir a {
  text-decoration: none;
  font-size: 0.92rem;
}

.colophon__dir span { color: var(--teal); margin-right: 0.25rem; }

.colophon__copy { font-size: 0.82rem; color: var(--mute); }

@media (min-width: 800px) {
  .menu-btn { display: none; }

  .nav {
    display: flex;
    flex-direction: row;
    width: auto;
    margin-left: auto;
    gap: 1.05rem;
  }

  .shell { grid-template-columns: 3.6rem 1fr; }

  .index-rail {
    display: flex;
    align-items: flex-start;
    justify-content: center;
    padding-top: 2.4rem;
    border-right: 1px solid var(--line);
  }

  .index-rail__n {
    font-family: "Ibarra Real Nova", Georgia, serif;
    color: var(--teal);
    font-size: 1.1rem;
    animation: index-fade 0.7s ease both;
  }

  .hero,
  .index-strip,
  .block,
  .page-head,
  .inner,
  .address-block { padding-left: 1.8rem; padding-right: 1.8rem; }

  .inner {
    grid-template-columns: minmax(0, 1fr) 13rem;
    align-items: start;
  }

  .sidenote {
    border-top: 0;
    border-left: 1px solid var(--umber);
    padding: 0 0 0 1rem;
    position: sticky;
    top: 1.2rem;
  }

  .method__list { grid-template-columns: repeat(4, minmax(0, 1fr)); }

  .facts div { grid-template-columns: 14rem 1fr; }

  .colophon { padding-left: calc((100% - var(--wide)) / 2 + 5.4rem); padding-right: 1.8rem; }
}

@keyframes index-fade {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: none; }
}

@media (max-width: 520px) {
  .facts div { grid-template-columns: 1fr; }
  .method__list { grid-template-columns: 1fr; }
  .index-strip { font-size: 0.7rem; }
}