/* Dry Ground - regenerative farming technique library.
   Light-first palette, dark mode via prefers-color-scheme. */

:root {
  --bg: #faf8f4;
  --surface: #ffffff;
  --surface-2: #f2efe8;
  --ink: #1e1c18;
  --ink-2: #4d4840;
  --ink-3: #756e63;
  --line: #ddd7cb;
  --accent: #4a6b3f;
  --accent-ink: #ffffff;
  --link: #2f5d4a;

  --strong: #2f6b46;
  --good: #4a7c59;
  --mixed: #9a6b18;
  --weak: #9c4a2f;

  --reversible: #2f6b46;
  --moderate: #4a6b7c;
  --long: #7a5f2a;
  --permanent: #8a3f2f;

  --measure: 44rem;
  --radius: 6px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #16150f;
    --surface: #1e1d16;
    --surface-2: #27251c;
    --ink: #ece8dd;
    --ink-2: #c3bdaf;
    --ink-3: #948d7e;
    --line: #383425;
    --accent: #8fb47c;
    --accent-ink: #16150f;
    --link: #93c4a5;

    --strong: #7fc094;
    --good: #93c4a5;
    --mixed: #d9ad5a;
    --weak: #e0917a;

    --reversible: #7fc094;
    --moderate: #8fb0c4;
    --long: #d9ad5a;
    --permanent: #e0917a;
  }
}

* { box-sizing: border-box; }

/* Layout display rules must not override the hidden state used by filters. */
[hidden] { display: none !important; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 16px/1.65 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  -webkit-text-size-adjust: 100%;
}

.wrap {
  width: 100%;
  max-width: 68rem;
  margin: 0 auto;
  padding: 0 1.25rem;
}

.skip {
  position: absolute;
  left: -9999px;
}
.skip:focus {
  left: 1rem;
  top: 1rem;
  z-index: 10;
  background: var(--accent);
  color: var(--accent-ink);
  padding: 0.5rem 0.75rem;
  border-radius: var(--radius);
}

a { color: var(--link); }
a:hover { text-decoration-thickness: 2px; }

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

.site-header {
  border-bottom: 1px solid var(--line);
  background: var(--surface);
  padding: 0.9rem 0;
}
.brand { text-decoration: none; color: inherit; display: block; }
.brand-name {
  display: block;
  font-weight: 650;
  font-size: 1.12rem;
  letter-spacing: -0.01em;
}
.brand-tag {
  display: block;
  color: var(--ink-3);
  font-size: 0.82rem;
}

.site-footer {
  margin-top: 4rem;
  border-top: 1px solid var(--line);
  background: var(--surface);
  padding: 1.75rem 0 2.5rem;
  font-size: 0.9rem;
  color: var(--ink-2);
}
.site-footer p { max-width: var(--measure); }

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

.hero {
  background: var(--surface-2);
  border-bottom: 1px solid var(--line);
  padding: 2.75rem 0 2.25rem;
}
.hero h1 {
  margin: 0 0 0.75rem;
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  line-height: 1.15;
  letter-spacing: -0.02em;
}
.hero-lede {
  max-width: var(--measure);
  font-size: 1.08rem;
  margin: 0 0 0.75rem;
}
.hero-note {
  max-width: var(--measure);
  margin: 0;
  color: var(--ink-2);
  font-size: 0.95rem;
}

/* ---------- library ---------- */

.library { padding-top: 2.25rem; }
.library > h2 { margin: 0 0 0.25rem; font-size: 1.35rem; }
.muted { color: var(--ink-3); font-size: 0.92rem; }

.filters {
  margin: 1.5rem 0 1.75rem;
  padding: 1rem 1.1rem 0.6rem;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}
.filter-group {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.5rem;
  margin-bottom: 0.7rem;
}
.filter-label {
  flex: 0 0 8.5rem;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--ink-3);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}
.filter-buttons { display: flex; flex-wrap: wrap; gap: 0.4rem; }
.filter {
  font: inherit;
  font-size: 0.88rem;
  padding: 0.25rem 0.7rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--bg);
  color: var(--ink-2);
  cursor: pointer;
}
.filter:hover { border-color: var(--accent); color: var(--ink); }
.filter.is-active {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--accent-ink);
  font-weight: 600;
}
.filter-status {
  margin: 0.35rem 0 0.4rem;
  font-size: 0.82rem;
  color: var(--ink-3);
}

.cards {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(auto-fill, minmax(17rem, 1fr));
}
.card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.05rem 1.1rem 0.9rem;
  display: flex;
  flex-direction: column;
}
.card > a { text-decoration: none; color: inherit; flex: 1; }
.card h3 {
  margin: 0 0 0.4rem;
  font-size: 1.06rem;
  line-height: 1.3;
  color: var(--link);
}
.card > a:hover h3 { text-decoration: underline; }
.card p { margin: 0; font-size: 0.92rem; color: var(--ink-2); }
.card-badges {
  margin: 0.85rem 0 0 !important;
  display: flex;
  flex-wrap: wrap;
  gap: 0.3rem;
}
.no-results {
  margin-top: 1.5rem;
  padding: 1rem;
  background: var(--surface-2);
  border-radius: var(--radius);
  max-width: var(--measure);
}

/* ---------- badges ---------- */

.badge {
  display: inline-block;
  font-size: 0.74rem;
  font-weight: 650;
  letter-spacing: 0.02em;
  padding: 0.16rem 0.5rem;
  border-radius: 999px;
  border: 1px solid currentColor;
  white-space: nowrap;
  cursor: help;
}
.badge-evidence-strong { color: var(--strong); }
.badge-evidence-good { color: var(--good); }
.badge-evidence-mixed { color: var(--mixed); }
.badge-evidence-weak { color: var(--weak); }
.badge-commitment-reversible { color: var(--reversible); }
.badge-commitment-moderate { color: var(--moderate); }
.badge-commitment-long { color: var(--long); }
.badge-commitment-permanent { color: var(--permanent); }
.badge-cost { color: var(--ink-3); }

.badge-evidence::before { content: "Evidence: "; font-weight: 500; opacity: 0.75; }
.badge-commitment::before { content: "Commitment: "; font-weight: 500; opacity: 0.75; }
.badge-cost::before { content: "Cost: "; font-weight: 500; opacity: 0.75; }

/* ---------- technique page ---------- */

.prose { padding-top: 1.75rem; max-width: 56rem; }
.crumb { font-size: 0.86rem; color: var(--ink-3); margin: 0 0 0.6rem; }
.prose h1 {
  margin: 0 0 0.5rem;
  font-size: clamp(1.65rem, 3.4vw, 2.25rem);
  line-height: 1.18;
  letter-spacing: -0.02em;
}
.lede {
  font-size: 1.08rem;
  color: var(--ink-2);
  max-width: var(--measure);
  margin: 0 0 1.4rem;
}

.factbar {
  display: flex;
  flex-wrap: wrap;
  gap: 1.4rem;
  margin: 0 0 1.75rem;
  padding: 1rem 1.1rem;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}
.factbar dt {
  font-size: 0.74rem;
  font-weight: 650;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--ink-3);
  margin-bottom: 0.3rem;
}
.factbar dd { margin: 0; }
.factbar .badge::before { content: none; }
.chip {
  display: inline-block;
  font-size: 0.8rem;
  padding: 0.16rem 0.55rem;
  margin: 0 0.25rem 0.25rem 0;
  background: var(--surface-2);
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--ink-2);
}

.verdict {
  margin: 0 0 1.75rem;
  padding: 1.1rem 1.25rem;
  background: var(--surface-2);
  border-left: 4px solid var(--accent);
  border-radius: 0 var(--radius) var(--radius) 0;
}
.verdict h2 {
  margin: 0 0 0.5rem;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--ink-3);
}
.verdict p { margin: 0 0 0.6rem; }
.verdict p:last-child { margin-bottom: 0; }

.toc {
  margin: 0 0 2rem;
  padding: 0.9rem 1.1rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
}
.toc h2 {
  margin: 0 0 0.5rem;
  font-size: 0.74rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--ink-3);
}
.toc ul { list-style: none; margin: 0; padding: 0; columns: 2; column-gap: 2rem; }
.toc li { font-size: 0.9rem; margin-bottom: 0.25rem; break-inside: avoid; }
.toc .toc-l3 { padding-left: 0.9rem; font-size: 0.85rem; }

.prose h2 {
  margin: 2.4rem 0 0.7rem;
  font-size: 1.32rem;
  line-height: 1.25;
  letter-spacing: -0.01em;
  padding-bottom: 0.3rem;
  border-bottom: 1px solid var(--line);
}
.prose h3 { margin: 1.9rem 0 0.5rem; font-size: 1.08rem; }
.prose p, .prose li { max-width: var(--measure); }
.prose ul, .prose ol { padding-left: 1.3rem; }
.prose li { margin-bottom: 0.4rem; }
.prose hr { border: 0; border-top: 1px solid var(--line); margin: 2.5rem 0; }

blockquote {
  margin: 1.4rem 0;
  padding: 0.2rem 0 0.2rem 1.1rem;
  border-left: 3px solid var(--line);
  color: var(--ink-2);
}
blockquote p { margin: 0.4rem 0; }

code {
  font-family: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  font-size: 0.9em;
  background: var(--surface-2);
  padding: 0.1em 0.35em;
  border-radius: 3px;
}

.table-scroll {
  overflow-x: auto;
  margin: 1.3rem 0;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
}
table { border-collapse: collapse; width: 100%; font-size: 0.92rem; }
th, td {
  text-align: left;
  padding: 0.55rem 0.8rem;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
}
th {
  background: var(--surface-2);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--ink-2);
  white-space: nowrap;
}
tbody tr:last-child td { border-bottom: 0; }

@media (max-width: 640px) {
  .filter-label { flex-basis: 100%; }
  .toc ul { columns: 1; }
  .factbar { gap: 1rem 1.6rem; }
}

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

.site-header .wrap {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem 1.5rem;
}
.site-nav { display: flex; gap: 1.1rem; flex-wrap: wrap; }
.site-nav a {
  font-size: 0.92rem;
  text-decoration: none;
  color: var(--ink-2);
  padding: 0.15rem 0;
  border-bottom: 2px solid transparent;
}
.site-nav a:hover {
  color: var(--ink);
  border-bottom-color: var(--accent);
}

@media (max-width: 560px) {
  .site-header .wrap { justify-content: flex-start; }
}

/* ---------- decision tool ---------- */

.decide { padding-top: 2rem; }
.decide-form {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(15rem, 1fr));
  gap: 1rem 1.5rem;
  margin: 1.5rem 0 1rem;
  padding: 1.1rem 1.2rem 1.2rem;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}
.decide-form label {
  display: block;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--ink-3);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: 0.3rem;
}
.decide-form select {
  font: inherit;
  width: 100%;
  padding: 0.45rem 0.6rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--bg);
  color: var(--ink);
}
.decide-form .field-help {
  margin: 0.3rem 0 0;
  font-size: 0.82rem;
  color: var(--ink-3);
}
.decide-actions { grid-column: 1 / -1; display: flex; gap: 0.6rem; align-items: center; }
.decide-actions button {
  font: inherit;
  font-size: 0.9rem;
  padding: 0.4rem 0.9rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--bg);
  color: var(--ink-2);
  cursor: pointer;
}
.decide-actions button:hover { border-color: var(--accent); color: var(--ink); }
.decide-status { font-size: 0.85rem; color: var(--ink-3); margin: 0; }

.decide-group { margin-top: 2.25rem; }
.decide-group > h2 {
  margin: 0 0 0.35rem;
  font-size: 1.25rem;
  letter-spacing: -0.01em;
}
.decide-group > p { margin: 0 0 1rem; max-width: var(--measure); }
.decide-group[hidden] { display: none; }

.reasons {
  list-style: none;
  margin: 0.8rem 0 0;
  padding: 0.7rem 0 0;
  border-top: 1px dashed var(--line);
  font-size: 0.85rem;
}
.reasons li {
  margin: 0 0 0.45rem;
  padding-left: 1.15rem;
  position: relative;
  color: var(--ink-2);
}
.reasons li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.45em;
  width: 0.55rem;
  height: 0.55rem;
  border-radius: 50%;
  background: var(--ink-3);
}
.reasons .reason-promote::before { background: var(--strong); }
.reasons .reason-demote::before, .reasons .reason-avoid::before { background: var(--weak); }
.reasons .reason-warn::before { background: var(--mixed); }
.reasons .reason-zone::before { background: var(--moderate); }
.card.is-avoid h3 { color: var(--ink-3); }

/* ---------- cash-flow stress test ---------- */

.decide-form input[type="number"] {
  font: inherit;
  width: 100%;
  padding: 0.45rem 0.6rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--bg);
  color: var(--ink);
}
.stress-chart { margin: 1.5rem 0 0.5rem; }
.stress-chart svg { width: 100%; height: auto; display: block; background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius); }
.stress-chart .axis { stroke: var(--line); stroke-width: 1; }
.stress-chart .tick { fill: var(--ink-3); font-size: 11px; }
.stress-chart .drought { fill: var(--mixed); opacity: 0.12; }
.stress-chart .line-base { fill: none; stroke: var(--ink-3); stroke-width: 2; stroke-dasharray: 5 4; }
.stress-chart .line-with { fill: none; stroke: var(--accent); stroke-width: 2.5; }
.chart-legend { font-size: 0.85rem; color: var(--ink-3); margin: 0.5rem 0 0; }
.lg { display: inline-block; width: 1.4rem; height: 0; border-top: 3px solid; vertical-align: middle; margin-right: 0.3rem; }
.lg-base { border-color: var(--ink-3); border-top-style: dashed; }
.lg-with { border-color: var(--accent); }
.lg-drought { height: 0.8rem; border: 0; background: var(--mixed); opacity: 0.25; }

pre {
  margin: 1.2rem 0;
  padding: 0.9rem 1.1rem;
  background: var(--surface-2);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow-x: auto;
  font-size: 0.9rem;
  line-height: 1.5;
}
pre code { background: none; padding: 0; font-size: inherit; }

/* ---------- claims ---------- */

.badge-verdict-unsupported, .badge-verdict-retired { color: var(--weak); }
.badge-verdict-inventor-sourced, .badge-verdict-vendor-sourced { color: var(--mixed); }
.badge-verdict-misread, .badge-verdict-contested { color: var(--moderate); }
.badge-verdict-projected { color: var(--long); }
.badge-verdict::before { content: "Verdict: "; font-weight: 500; opacity: 0.75; }
.factbar .badge-verdict::before { content: none; }
.claim-quote {
  margin: 0 0 1.25rem;
  padding: 0.9rem 1.2rem;
  border-left: 4px solid var(--mixed);
  background: var(--surface-2);
  font-size: 1.12rem;
  color: var(--ink);
}
.claim-quote p { margin: 0; max-width: var(--measure); }
.verdict-legend { list-style: none; padding: 0; margin: 1rem 0 0; display: grid; gap: 0.4rem; font-size: 0.9rem; color: var(--ink-2); }
.verdict-legend li { max-width: var(--measure); }

/* Language switcher (one hostname per language) and untranslated notice */
.lang-switch { display: flex; gap: 0.9rem; font-size: 0.85rem; flex-basis: 100%; justify-content: flex-end; margin: 0; }
.lang-switch a { text-decoration: none; opacity: 0.75; }
.lang-switch a:hover { opacity: 1; text-decoration: underline; }
.lang-switch a[aria-current="true"] { opacity: 1; font-weight: 600; border-bottom: 2px solid currentColor; }
.notice { margin: 1rem auto 0; padding: 0.6rem 0.9rem; border-left: 4px solid #b98a1c; background: rgba(185,138,28,0.08); font-size: 0.95rem; }