:root {
  --bg: #f4f1e8;
  --bg-band: #e5efe4;
  --ink: #1b241c;
  --muted: #3f4a40;
  --green: #1e6b43;
  --green-dark: #0f3d26;
  --leaf: #e7f2e4;
  --earth: #8a5430;
  --card: #fffdf8;
  --line: #ddd4c4;
  --sow: #1f7a4d;
  --plant: #c4922a;
  --harvest: #c45c32;
  --shadow: 0 1px 0 rgba(27, 36, 28, 0.04);
  --max: 72rem;
  --sans: "Segoe UI", system-ui, -apple-system, sans-serif;
  --serif: Palatino, "Palatino Linotype", "Iowan Old Style", Georgia, serif;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 1.0625rem;
  line-height: 1.6;
}

img,
svg {
  max-width: 100%;
}

a {
  color: var(--green-dark);
}

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

:focus-visible {
  outline: 3px solid var(--green);
  outline-offset: 3px;
}

.skip {
  position: absolute;
  left: 0.75rem;
  top: 0.75rem;
  transform: translateY(-150%);
  background: var(--green-dark);
  color: #fff;
  padding: 0.6rem 0.9rem;
  z-index: 10;
}

.skip:focus {
  transform: none;
}

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

.site-header {
  background: var(--card);
  border-bottom: 1px solid var(--line);
}

.header-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem 1.25rem;
  padding: 0.9rem 0;
}

.wordmark {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  color: var(--ink);
  text-decoration: none;
  font-family: var(--serif);
  font-size: 1.35rem;
  font-weight: 700;
}

.wordmark svg {
  width: 1.8rem;
  height: 1.8rem;
  flex: none;
}

.nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 0.9rem;
}

.nav a {
  color: var(--ink);
  text-decoration: none;
  font-weight: 600;
}

.nav a[aria-current="page"] {
  color: var(--green-dark);
  text-decoration: underline;
  text-underline-offset: 0.25rem;
}

.month-switch {
  background: var(--bg-band);
  border-bottom: 1px solid var(--line);
}

.month-switch ul {
  display: flex;
  gap: 0.35rem;
  list-style: none;
  margin: 0;
  padding: 0.55rem 0;
  overflow-x: auto;
}

.month-switch a {
  display: inline-block;
  padding: 0.35rem 0.6rem;
  border-radius: 999px;
  text-decoration: none;
  color: var(--green-dark);
  background: transparent;
  white-space: nowrap;
  font-size: 0.92rem;
  font-weight: 650;
}

.month-switch a[aria-current="page"] {
  background: var(--green);
  color: #fff;
}

main {
  padding: 1.5rem 0 3rem;
}

h1,
h2,
h3 {
  font-family: var(--serif);
  line-height: 1.2;
  font-weight: 700;
}

h1 {
  font-size: clamp(2rem, 4vw, 3.1rem);
  margin: 0.2rem 0 0.8rem;
}

h2 {
  font-size: clamp(1.45rem, 2.4vw, 1.9rem);
  margin: 2rem 0 0.7rem;
}

h3 {
  font-size: 1.2rem;
  margin: 0 0 0.35rem;
}

p {
  margin: 0.6rem 0;
}

.lede,
.summary {
  font-size: 1.15rem;
  max-width: 42rem;
}

.eyebrow {
  margin: 0;
  color: var(--earth);
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  font-size: 0.78rem;
}

.hero {
  padding: 0.5rem 0 0.25rem;
}

.panel,
.card,
.region-card,
.need,
.faq,
.sources,
.callout {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 1rem;
  box-shadow: var(--shadow);
}

.panel,
.need,
.faq,
.sources,
.callout {
  padding: 1.1rem 1.15rem 1.2rem;
}

.panel h2:first-child,
.need h2,
.faq h2,
.sources h2 {
  margin-top: 0;
}

.grid {
  display: grid;
  gap: 0.8rem;
}

.month-grid,
.crop-grid {
  grid-template-columns: 1fr;
}

.card {
  padding: 0.95rem 1rem 1rem;
}

.card a {
  font-weight: 700;
  text-decoration: none;
}

.card p {
  margin: 0.35rem 0 0;
  color: var(--muted);
}

.card .tag {
  display: inline-block;
  margin-top: 0.55rem;
  color: var(--green-dark);
  font-size: 0.92rem;
  font-weight: 650;
}

.highlights,
.jobs,
.tasks,
.plain-list,
.need ul,
.sources ol {
  margin: 0.4rem 0 0;
  padding-left: 1.15rem;
}

.tasks li,
.jobs li,
.need li {
  margin: 0.7rem 0;
}

.tasks p,
.need p {
  margin: 0.15rem 0 0;
}

.meta {
  color: var(--muted);
  font-size: 0.95rem;
}

.crumbs {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  list-style: none;
  padding: 0;
  margin: 0 0 0.8rem;
  color: var(--muted);
  font-size: 0.95rem;
}

.crumbs a {
  text-decoration: none;
}

.latin {
  font-style: italic;
}

.section-intro {
  max-width: 44rem;
}

.facts {
  display: grid;
  gap: 0.65rem;
  margin: 0.8rem 0 0;
}

.facts div {
  background: var(--leaf);
  border-radius: 0.75rem;
  padding: 0.7rem 0.8rem;
}

.facts dt {
  font-size: 0.82rem;
  font-weight: 750;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  color: var(--green-dark);
}

.facts dd {
  margin: 0.15rem 0 0;
}

.chart {
  margin: 1rem 0 0.4rem;
}

.chart-scroll {
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: 0.9rem;
  background: var(--card);
  padding: 0.8rem;
}

.chart-scale,
.chart-row {
  display: grid;
  grid-template-columns: 8.5rem repeat(12, minmax(1.35rem, 1fr));
  gap: 0.25rem;
  align-items: center;
  min-width: 36rem;
}

.chart-scale {
  margin-bottom: 0.35rem;
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 700;
  text-align: center;
}

.chart-label {
  font-size: 0.92rem;
  font-weight: 700;
}

.cell {
  display: block;
  height: 1.15rem;
  border-radius: 0.25rem;
  background: #efe8dc;
}

.cell.on.sow { background: var(--sow); }
.cell.on.plant { background: var(--plant); }
.cell.on.harvest { background: var(--harvest); }

.legend {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem 1rem;
  list-style: none;
  padding: 0.7rem 0 0;
  margin: 0;
  font-size: 0.92rem;
}

.legend i {
  display: inline-block;
  width: 0.85rem;
  height: 0.85rem;
  border-radius: 0.2rem;
  margin-right: 0.35rem;
  vertical-align: -0.1rem;
}

.legend .sow { background: var(--sow); }
.legend .plant { background: var(--plant); }
.legend .harvest { background: var(--harvest); }

.chart-readout {
  margin-top: 0.8rem;
}

.problem {
  border-top: 1px solid var(--line);
  padding-top: 0.8rem;
  margin-top: 0.8rem;
}

.problem:first-of-type {
  border-top: 0;
  padding-top: 0;
  margin-top: 0.4rem;
}

.callout {
  background: var(--leaf);
  margin-top: 1.25rem;
}

.need {
  margin-top: 1.25rem;
}

.faq details {
  border-top: 1px solid var(--line);
  padding: 0.7rem 0;
}

.faq details:first-of-type {
  border-top: 0;
}

.faq summary {
  cursor: pointer;
  font-weight: 700;
}

.sources li {
  margin: 0.45rem 0;
}

.related {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  list-style: none;
  padding: 0;
  margin: 0.5rem 0 0;
}

.related a,
.button,
button,
select {
  border-radius: 999px;
}

.related a {
  display: inline-block;
  padding: 0.35rem 0.7rem;
  background: var(--leaf);
  text-decoration: none;
  font-weight: 650;
}

.button,
button {
  appearance: none;
  border: 0;
  background: var(--green);
  color: #fff;
  font: inherit;
  font-weight: 700;
  padding: 0.7rem 1rem;
  cursor: pointer;
  text-decoration: none;
  display: inline-block;
}

.button:hover,
button:hover {
  background: var(--green-dark);
  color: #fff;
}

.frost-form {
  display: grid;
  gap: 0.7rem;
  margin-top: 0.8rem;
}

label {
  font-weight: 700;
}

select {
  font: inherit;
  padding: 0.7rem 0.8rem;
  border: 1px solid var(--line);
  background: #fff;
  color: var(--ink);
  min-height: 2.8rem;
  width: min(100%, 24rem);
}

.region-card {
  padding: 1rem 1.05rem 1.1rem;
  scroll-margin-top: 1rem;
}

.region-card.is-selected {
  border-color: var(--green);
  box-shadow: 0 0 0 3px rgba(30, 107, 67, 0.18);
}

#frost-result {
  margin-top: 1rem;
}

#frost-result h2 {
  margin-top: 0;
}

#frost-result .region-card {
  border: 0;
  box-shadow: none;
  background: transparent;
  padding: 0;
}

.stat-table {
  width: 100%;
  border-collapse: collapse;
  margin: 0.6rem 0 0.8rem;
  font-size: 0.95rem;
}

.stat-table th,
.stat-table td {
  text-align: left;
  padding: 0.4rem 0.45rem;
  border-bottom: 1px solid var(--line);
}

.stat-table th {
  color: var(--muted);
  font-weight: 650;
}

.pager {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  margin-top: 1.5rem;
}

.pager a {
  font-weight: 700;
  text-decoration: none;
}

.site-footer {
  border-top: 1px solid var(--line);
  background: var(--green-dark);
  color: #e7f2e4;
  padding: 1.4rem 0 1.8rem;
}

.site-footer a {
  color: #fff;
}

.footer-grid {
  display: grid;
  gap: 0.8rem;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem 1rem;
  list-style: none;
  padding: 0;
  margin: 0;
}

.ad-slot:empty {
  display: none;
}

@media (min-width: 40rem) {
  .month-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .crop-grid,
  .facts {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 64rem) {
  .month-grid,
  .crop-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .facts {
    grid-template-columns: repeat(3, 1fr);
  }

  .footer-grid {
    grid-template-columns: 2fr 1fr;
    align-items: start;
  }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}