:root {
  --paper: #ece9e3;
  --card: #f6f4ef;
  --white: #ffffff;
  --ink: #1b1d21;
  --steel: #3a3f47;
  --muted: #6c727b;
  --orange: #d9531e;
  --orange-weak: #f0d8c9;
  --line: #d6d1c7;
  --demo: #8a5a2b;
  --rough: #3f6b8a;
  --finish: #4d7a3e;

  --head: "Arial Narrow", "Roboto Condensed", ui-sans-serif, system-ui, sans-serif;
  --body: Georgia, "Noto Serif", "Times New Roman", serif;

  --wrap: 62rem;
  --step: clamp(1.6rem, 1rem + 3vw, 3.4rem);
}

* { box-sizing: border-box; }

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

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--body);
  font-size: clamp(1rem, 0.96rem + 0.2vw, 1.08rem);
  line-height: 1.6;
  background-image:
    repeating-linear-gradient(90deg, transparent 0 7.4rem, rgba(0, 0, 0, 0.025) 7.4rem 7.5rem);
}

.wrap {
  width: min(100% - 2rem, var(--wrap));
  margin-inline: auto;
}

a { color: var(--orange); text-decoration-thickness: 0.08em; text-underline-offset: 0.16em; }
a:hover { color: var(--ink); }

/* header */
.top {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.5rem 0;
  border-bottom: 3px solid var(--ink);
  flex-wrap: wrap;
}
.logo {
  font-family: var(--head);
  font-weight: 800;
  font-size: 1.9rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--ink);
  text-decoration: none;
}
.logo span { color: var(--orange); }
.top nav { display: flex; gap: 1.4rem; }
.top nav a {
  font-family: var(--head);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--steel);
  text-decoration: none;
  padding-bottom: 0.2rem;
  border-bottom: 2px solid transparent;
  transition: border-color 140ms ease, color 140ms ease;
}
.top nav a:hover,
.top nav a:focus-visible { color: var(--ink); border-color: var(--orange); outline: none; }

/* hero */
.hero { padding: var(--step) 0 calc(var(--step) * 0.6); }
.kicker {
  font-family: var(--head);
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--orange);
  margin: 0 0 0.7rem;
}
h1 {
  font-family: var(--head);
  font-weight: 800;
  font-size: clamp(2.3rem, 1.1rem + 5.4vw, 4.6rem);
  line-height: 0.98;
  letter-spacing: -0.01em;
  margin: 0 0 1rem;
  max-width: 20ch;
}
.lead { font-size: 1.2rem; color: var(--steel); max-width: 54ch; margin: 0; }

/* section headings */
h2 {
  font-family: var(--head);
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.02em;
  font-size: clamp(1.4rem, 1rem + 1.4vw, 2rem);
  margin: 0 0 1.3rem;
  padding-top: 0.7rem;
  border-top: 2px solid var(--line);
}

.stages { padding: calc(var(--step) * 0.6) 0; }

/* flow of stages */
.flow { list-style: none; margin: 0; padding: 0; display: grid; gap: 0.7rem; }
.flow li {
  position: relative;
  display: grid;
  grid-template-columns: 3.2rem 1fr;
  grid-template-areas: "num name" "num note";
  column-gap: 1rem;
  background: var(--card);
  border: 1px solid var(--line);
  border-left: 5px solid var(--steel);
  padding: 1rem 1.1rem;
  box-shadow: 0 1px 0 rgba(0, 0, 0, 0.04);
}
.flow .num {
  grid-area: num;
  font-family: var(--head);
  font-weight: 800;
  font-size: 1.8rem;
  color: var(--line);
  align-self: start;
  line-height: 1;
}
.flow .name {
  grid-area: name;
  font-family: var(--head);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-weight: 700;
  font-size: 1.05rem;
}
.flow .note { grid-area: note; color: var(--muted); font-size: 0.98rem; margin-top: 0.15rem; }
.flow li.demo { border-left-color: var(--demo); }
.flow li.demo .num { color: color-mix(in oklab, var(--demo) 35%, var(--line)); }
.flow li.rough { border-left-color: var(--rough); }
.flow li.rough .num { color: color-mix(in oklab, var(--rough) 35%, var(--line)); }
.flow li.finish { border-left-color: var(--finish); }
.flow li.finish .num { color: color-mix(in oklab, var(--finish) 35%, var(--line)); }
.flow li.done { border-left-color: var(--orange); }
.flow li.done .num { color: var(--orange); }

.legend { display: flex; flex-wrap: wrap; gap: 0.4rem 1.1rem; margin: 1rem 0 0; font-size: 0.8rem; color: var(--muted); }
.legend span { font-family: var(--head); text-transform: uppercase; letter-spacing: 0.06em; display: inline-flex; align-items: center; gap: 0.4rem; }
.legend span::before { content: ""; width: 0.8rem; height: 0.8rem; border-radius: 2px; }
.l-demo::before { background: var(--demo); }
.l-rough::before { background: var(--rough); }
.l-finish::before { background: var(--finish); }

.warn {
  margin: 1.4rem 0 0;
  padding: 0.9rem 1.1rem;
  background: var(--orange-weak);
  border-left: 5px solid var(--orange);
  color: #6a2f12;
  font-size: 0.98rem;
}

/* reads */
.reads { padding: calc(var(--step) * 0.6) 0; }
.reads-grid { display: grid; gap: 1.6rem; grid-template-columns: 1.15fr 1fr; align-items: start; }
.big h3 { font-family: var(--head); font-size: 1.5rem; line-height: 1.1; margin: 0 0 0.6rem; }
.big h3 a { color: var(--ink); text-decoration: none; }
.big h3 a:hover { color: var(--orange); }
.big p { margin: 0; color: var(--steel); }
.small { list-style: none; margin: 0; padding: 0; display: grid; gap: 1.1rem; }
.small li { border-top: 1px solid var(--line); padding-top: 0.9rem; }
.small h3 { font-family: var(--head); text-transform: uppercase; letter-spacing: 0.03em; font-size: 0.98rem; margin: 0 0 0.3rem; }
.small p { margin: 0; color: var(--muted); font-size: 0.95rem; }

/* contact */
.contact { padding: calc(var(--step) * 0.6) 0 var(--step); }
.contact-lead { color: var(--steel); max-width: 52ch; margin: 0 0 1.4rem; }
.contact-form { display: grid; gap: 1rem; grid-template-columns: 1fr 1fr; max-width: 40rem; }
.contact-form label { display: grid; gap: 0.35rem; font-family: var(--head); text-transform: uppercase; letter-spacing: 0.06em; font-size: 0.76rem; font-weight: 700; color: var(--steel); }
.contact-message { grid-column: 1 / -1; }
.contact-form input,
.contact-form textarea {
  font-family: var(--body);
  font-size: 1rem;
  padding: 0.7rem 0.8rem;
  border: 1px solid var(--line);
  background: var(--white);
  color: var(--ink);
  border-radius: 0;
}
.contact-form input:focus,
.contact-form textarea:focus { outline: 2px solid var(--orange); outline-offset: 1px; border-color: var(--orange); }
.contact-form button {
  grid-column: 1 / -1;
  justify-self: start;
  font-family: var(--head);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--white);
  background: var(--ink);
  border: none;
  padding: 0.85rem 2rem;
  cursor: pointer;
  transition: background 140ms ease;
}
.contact-form button:hover { background: var(--orange); }
.contact-form button:focus-visible { outline: 2px solid var(--orange); outline-offset: 3px; }

/* footer */
.foot { border-top: 3px solid var(--ink); margin-top: var(--step); padding: 1.5rem 0 2.5rem; color: var(--muted); font-size: 0.9rem; }
.foot p { margin: 0.2rem 0; }

@media (max-width: 40rem) {
  .reads-grid { grid-template-columns: 1fr; }
  .contact-form { grid-template-columns: 1fr; }
  .top { gap: 0.6rem; }
}