/* Proldorvi — specimen sheet */

:root {
  --sand: #f4ece0;
  --sand-deep: #e8dbc7;
  --ink: #2a2119;
  --muted: #7d6f5c;
  --brick: #b0512c;
  --blue: #37596b;
  --dark: #33231a;
  --gap: 28px;
  --rhythm: 88px;
}

* { box-sizing: border-box; }

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

body {
  margin: 0;
  background: var(--sand-deep);
  color: var(--ink);
  font-family: system-ui, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  font-size: 17px;
  line-height: 1.7;
  overflow-x: hidden;
}

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

a {
  color: var(--brick);
  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(--brick);
  outline-offset: 3px;
}

/* ---------- slab ---------- */

.slab {
  max-width: 1180px;
  margin: 40px auto 0;
  background: var(--sand);
  border: 1px solid var(--brick);
  padding: 34px 40px 56px;
}

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

.grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: var(--gap);
  align-items: start;
}

.col-main { grid-column: 1 / 8; }
.col-side { grid-column: 9 / 13; }
.col-wide { grid-column: 1 / 13; }

/* ---------- masthead / nav ---------- */

.masthead {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 10px 24px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--blue);
}

.masthead .wordmark {
  font-size: 20px;
  font-weight: 800;
  letter-spacing: 0.02em;
  color: var(--ink);
  text-decoration: none;
}

.masthead nav ul {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 22px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-size: 14px;
}

.masthead nav a { color: var(--ink); text-decoration: none; }
.masthead nav a:hover { color: var(--brick); text-decoration: underline; }

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

.hero { margin-top: 46px; }

.hero h1 {
  grid-column: 1 / 9;
  margin: 0;
  font-size: clamp(34px, 5.6vw, 68px);
  font-weight: 800;
  line-height: 1.02;
  letter-spacing: -0.035em;
}

.hero .card { grid-column: 9 / 13; }

.hero-lede { grid-column: 1 / 8; margin-top: 34px; }
.hero-lede p:first-child { margin-top: 0; }

/* ---------- small bordered tables ---------- */

.card {
  border: 1px solid var(--blue);
  padding: 16px 18px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--muted);
}

.card h2,
.card h3 {
  margin: 0 0 10px;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--blue);
}

.card dl { margin: 0; }

.card dt {
  color: var(--blue);
  font-weight: 700;
}

.card dd {
  margin: 0 0 10px;
  color: var(--muted);
}

.card dd:last-child { margin-bottom: 0; }

.card p { margin: 0 0 8px; }
.card p:last-child { margin-bottom: 0; }

.card + .card { margin-top: 22px; }

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

.band { margin-top: var(--rhythm); }

.band h2 {
  margin: 0 0 14px;
  font-size: clamp(21px, 2.3vw, 29px);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.015em;
}

.band h3 {
  margin: 28px 0 8px;
  font-size: 18px;
  font-weight: 700;
}

.band p { margin: 0 0 18px; }
.band p:last-child { margin-bottom: 0; }

.num {
  display: block;
  margin-bottom: 6px;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--blue);
}

.tinted {
  background: var(--sand-deep);
  padding: 34px 32px;
  border: 1px solid rgba(55, 89, 107, 0.35);
}

/* ---------- rule with ticks ---------- */

.rule {
  position: relative;
  height: 1px;
  margin: var(--rhythm) 0 0;
  background: var(--blue);
  border: 0;
}

.rule::before,
.rule::after {
  content: "";
  position: absolute;
  top: -5px;
  width: 1px;
  height: 11px;
  background: var(--blue);
}

.rule::before { left: 0; }
.rule::after { right: 0; }

/* ---------- images ---------- */

.figure-main { grid-column: 1 / 6; margin: 0; }
.figure-main img { border: 1px solid var(--brick); width: 100%; }

.figure-side {
  grid-column: 7 / 13;
  font-size: 13px;
  line-height: 1.6;
  color: var(--muted);
  align-self: end;
}

.figure-side p { margin: 0 0 10px; }
.figure-side p:last-child { margin-bottom: 0; }

figcaption {
  margin-top: 10px;
  font-size: 13px;
  line-height: 1.55;
  color: var(--muted);
}

/* ---------- dark section ---------- */

.dark {
  background: var(--dark);
  color: var(--sand);
  margin: var(--rhythm) -40px 0;
  padding: 62px 40px;
}

.dark h2 { color: var(--sand); }
.dark .num { color: #c8b79c; }
.dark a { color: #e0a17f; }
.dark figcaption { color: #b8a68d; }

.dark .figure-dark { grid-column: 1 / 6; margin: 0; }
.dark .figure-dark img { border: 1px solid rgba(244, 236, 224, 0.5); width: 100%; }
.dark .dark-text { grid-column: 7 / 13; }
.dark .dark-text p:last-child { margin-bottom: 0; }

/* ---------- lists ---------- */

ul.checks, ol.steps {
  margin: 0 0 18px;
  padding-left: 0;
  list-style: none;
}

ul.checks li, ol.steps li {
  position: relative;
  padding-left: 26px;
  margin-bottom: 10px;
}

ul.checks li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 12px;
  width: 12px;
  height: 1px;
  background: var(--brick);
}

ol.steps { counter-reset: step; }

ol.steps li::before {
  counter-increment: step;
  content: counter(step, decimal-leading-zero);
  position: absolute;
  left: 0;
  top: 0;
  font-size: 13px;
  font-weight: 700;
  color: var(--brick);
}

.dark ul.checks li::before { background: #e0a17f; }

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

.site-footer {
  max-width: 1180px;
  margin: 56px auto;
  padding: 0 40px;
  color: var(--muted);
  font-size: 14px;
}

.footer-top {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: baseline;
  gap: 8px 24px;
  padding-bottom: 12px;
}

.footer-top .name {
  font-size: 17px;
  font-weight: 800;
  letter-spacing: 0.02em;
  color: var(--ink);
}

.footer-line {
  height: 1px;
  background: var(--blue);
  border: 0;
  margin: 0 0 14px;
}

.site-footer nav ul {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 22px;
  margin: 0 0 14px;
  padding: 0;
  list-style: none;
}

.site-footer nav a { color: var(--ink); text-decoration: none; }
.site-footer nav a:hover { color: var(--brick); text-decoration: underline; }

.site-footer .note { margin: 0; font-size: 13px; line-height: 1.6; max-width: 62ch; }

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

@media (max-width: 900px) {
  .col-main, .col-side, .col-wide,
  .hero h1, .hero .card, .hero-lede,
  .figure-main, .figure-side,
  .dark .figure-dark, .dark .dark-text { grid-column: 1 / 13; }

  .figure-side { align-self: start; }
}

@media (max-width: 720px) {
  :root { --rhythm: 52px; --gap: 22px; }

  body { font-size: 16px; }

  .slab {
    margin: 18px 14px 0;
    padding: 22px 20px 40px;
  }

  .dark { margin-left: -20px; margin-right: -20px; padding: 40px 20px; }

  .tinted { padding: 24px 20px; }

  .site-footer { margin: 34px auto; padding: 0 20px; }

  .hero { margin-top: 30px; }

  .masthead { flex-direction: column; align-items: flex-start; }
}