/* Andean Crops Nutrient Composition Explorer
   Colour contrast: text colours meet WCAG 2.2 AA (4.5:1) on their backgrounds. */

:root {
  color-scheme: light;

  --c-forest-900: #16241d;
  --c-forest-700: #2b4c3f;
  --c-terracotta: #a45a2a;
  --c-terracotta-700: #87461d;
  --c-gold: #c08a3e;
  --c-cream: #faf8f5;
  --c-surface: #ffffff;
  --c-surface-alt: #f3efea;
  --c-border: #dcd6cd;
  --c-border-strong: #b3aaa0;
  --c-ink: #1c2621;
  --c-ink-muted: #4f5b55;
  --c-on-dark: #ffffff;
  --c-on-dark-muted: #cad5ce;
  --c-focus: #0b5fd6;

  --c-positive-bg: #e3efe7;
  --c-positive-ink: #1b5834;
  --c-caution-bg: #fbefd9;
  --c-caution-ink: #6f4405;
  --c-danger-bg: #f9e3e0;
  --c-danger-ink: #8a2416;

  --font-serif: Georgia, "Times New Roman", Times, serif;
  --font-sans: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;

  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08);
  --shadow-md: 0 4px 12px rgba(22, 36, 29, 0.08);
}

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

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.5;
  color: var(--c-ink);
  background-color: var(--c-cream);
  -webkit-font-smoothing: antialiased;
}

h1,
h2,
h3,
p,
dl,
dd,
ul,
ol,
figure {
  margin: 0;
}

a {
  color: var(--c-forest-700);
  text-underline-offset: 2px;
}

a:hover {
  color: var(--c-terracotta-700);
}

:focus-visible {
  outline: 3px solid var(--c-focus);
  outline-offset: 2px;
}

.container {
  width: 100%;
  max-width: 1200px;
  margin-inline: auto;
  padding-inline: 1.5rem;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: absolute;
  top: 0.5rem;
  left: 0.5rem;
  z-index: 10;
  padding: 0.5rem 0.75rem;
  background: var(--c-surface);
  color: var(--c-ink);
  border-radius: var(--radius-sm);
  transform: translateY(-200%);
}

.skip-link:focus {
  transform: none;
}

/* Header */

.site-header {
  background-color: var(--c-forest-900);
  color: var(--c-on-dark);
  padding: 2.75rem 0 3.5rem;
  border-bottom: 4px solid var(--c-terracotta);
}

.site-header__inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 400px);
  align-items: end;
  gap: 2rem 3rem;
}

.site-header__text {
  max-width: 640px;
}

.eyebrow {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--c-gold);
  margin-bottom: 0.5rem;
}

.site-header h1 {
  font-family: var(--font-serif);
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  line-height: 1.15;
  letter-spacing: -0.01em;
}

.lede {
  margin-top: 0.75rem;
  color: var(--c-on-dark-muted);
  font-size: 0.98rem;
}

.summary {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.75rem;
}

.summary__item {
  display: flex;
  flex-direction: column-reverse;
  padding: 0.7rem 1rem;
  background-color: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: var(--radius-md);
}

.summary__item dd {
  font-family: var(--font-mono);
  font-size: 1.4rem;
  font-weight: 700;
  line-height: 1.2;
  color: var(--c-gold);
}

.summary__item dt {
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--c-on-dark-muted);
}

/* Controls */

main {
  padding-bottom: 4rem;
}

.controls {
  display: grid;
  grid-template-columns: minmax(0, 2fr) minmax(0, 1fr) minmax(0, 1fr);
  gap: 1rem 1.25rem;
  align-items: end;
  margin-top: -1.75rem;
  padding: 1.25rem 1.5rem;
  background-color: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
}

.field {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  min-width: 0;
  margin: 0;
  padding: 0;
  border: 0;
}

.field > label,
.field > legend {
  padding: 0;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--c-ink-muted);
}

.field > legend {
  margin-bottom: 0.35rem;
}

.field input[type="search"],
.field select {
  width: 100%;
  font: inherit;
  font-size: 0.92rem;
  padding: 0.6rem 0.8rem;
  color: var(--c-ink);
  background-color: var(--c-surface);
  border: 1px solid var(--c-border-strong);
  border-radius: var(--radius-sm);
}

.field input[type="search"]:focus-visible,
.field select:focus-visible {
  outline: 3px solid var(--c-focus);
  outline-offset: 1px;
  border-color: var(--c-forest-900);
}

.field--inline {
  flex-direction: row;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.88rem;
}

.field--inline input {
  width: 1.05rem;
  height: 1.05rem;
  margin: 0;
  accent-color: var(--c-forest-700);
}

.field--actions {
  align-items: flex-start;
}

.segmented {
  display: inline-flex;
  flex-wrap: wrap;
  align-self: flex-start;
  border: 1px solid var(--c-border-strong);
  border-radius: var(--radius-sm);
  overflow: hidden;
  background-color: var(--c-surface);
}

.segmented__option {
  position: relative;
  display: flex;
}

.segmented__option input {
  position: absolute;
  inset: 0;
  opacity: 0;
  margin: 0;
  cursor: pointer;
}

.segmented__option label {
  padding: 0.55rem 0.85rem;
  font-size: 0.86rem;
  border-left: 1px solid var(--c-border);
  cursor: pointer;
  user-select: none;
}

.segmented__option:first-child label {
  border-left: 0;
}

.segmented__option input:checked + label {
  background-color: var(--c-forest-700);
  color: var(--c-on-dark);
}

.segmented__option input:focus-visible + label {
  outline: 3px solid var(--c-focus);
  outline-offset: -3px;
}

.button {
  font: inherit;
  font-size: 0.88rem;
  font-weight: 600;
  padding: 0.55rem 1rem;
  color: var(--c-on-dark);
  background-color: var(--c-forest-700);
  border: 1px solid var(--c-forest-700);
  border-radius: var(--radius-sm);
  cursor: pointer;
}

.button:hover {
  background-color: var(--c-forest-900);
}

.button--quiet {
  color: var(--c-forest-700);
  background-color: transparent;
  border-color: var(--c-border-strong);
}

.button--quiet:hover {
  background-color: var(--c-surface-alt);
}

/* Notices and status */

.notice {
  margin-top: 1.25rem;
  padding: 0.75rem 1rem;
  font-size: 0.9rem;
  background-color: #fff7e8;
  border-left: 4px solid var(--c-gold);
  border-radius: var(--radius-sm);
}

.results-status {
  margin: 1.25rem 0 1rem;
  font-size: 0.88rem;
  color: var(--c-ink-muted);
}

.results-status--error {
  padding: 0.75rem 1rem;
  color: var(--c-danger-ink);
  background-color: var(--c-danger-bg);
  border-radius: var(--radius-sm);
}

.results:focus {
  outline: none;
}

/* Cards */

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(100%, 340px), 1fr));
  gap: 1.5rem;
}

.crop-card {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  padding: 1.4rem 1.5rem;
  background-color: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
}

.crop-card__header {
  padding-bottom: 0.85rem;
  border-bottom: 1px solid var(--c-border);
}

.crop-card__tags {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.5rem;
  margin-bottom: 0.6rem;
}

.crop-card__name {
  font-family: var(--font-serif);
  font-size: 1.4rem;
  line-height: 1.2;
  color: var(--c-forest-900);
}

.crop-card__alt {
  font-size: 0.85rem;
  color: var(--c-ink-muted);
}

.crop-card__taxon {
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem 0.75rem;
  margin-top: 0.3rem;
  font-size: 0.86rem;
}

.family {
  font-size: 0.74rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--c-ink-muted);
  align-self: center;
}

.crop-card__food {
  margin-top: 0.5rem;
  font-size: 0.84rem;
  color: var(--c-ink-muted);
}

.tag,
.status,
.condition {
  display: inline-block;
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  padding: 0.18rem 0.5rem;
  border-radius: var(--radius-sm);
}

.status {
  margin: 0;
  letter-spacing: 0.04em;
}

.tag--pseudocereal { background-color: #f8efe3; color: #6b4914; }
.tag--cereal       { background-color: #f7e6eb; color: #771c35; }
.tag--grain_legume { background-color: #e2ece5; color: #1b5834; }
.tag--root_tuber   { background-color: #f0eaf5; color: #4b276e; }
.tag--fruit        { background-color: #fde8de; color: #8a3413; }
.tag--vegetable    { background-color: #e6eef8; color: #1f4a7a; }

.status--positive { background-color: var(--c-positive-bg); color: var(--c-positive-ink); }
.status--caution  { background-color: var(--c-caution-bg); color: var(--c-caution-ink); }

.condition {
  padding: 0.1rem 0.4rem;
  color: var(--c-ink);
  background-color: var(--c-surface-alt);
  border: 1px solid var(--c-border);
}

.flags {
  display: grid;
  gap: 0.5rem;
  padding: 0;
  list-style: none;
}

.flag {
  padding: 0.6rem 0.8rem;
  font-size: 0.82rem;
  color: var(--c-caution-ink);
  background-color: var(--c-caution-bg);
  border-left: 3px solid var(--c-gold);
  border-radius: var(--radius-sm);
}

.metrics {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.5rem;
  padding: 0.75rem;
  text-align: center;
  background-color: var(--c-surface-alt);
  border-radius: var(--radius-sm);
}

.metric {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
}

.metric dt {
  font-size: 0.66rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--c-ink-muted);
}

.metric dd {
  font-family: var(--font-mono);
  font-size: 1rem;
  font-weight: 700;
  color: var(--c-forest-900);
}

.metric .unit {
  display: block;
  font-family: var(--font-sans);
  font-size: 0.68rem;
  font-weight: 400;
  color: var(--c-ink-muted);
}

.detail-list {
  font-size: 0.85rem;
}

.detail-list > div {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.25rem 0;
  border-bottom: 1px dashed var(--c-border);
}

.detail-list dt {
  color: var(--c-ink-muted);
}

.detail-list dd {
  font-family: var(--font-mono);
  text-align: right;
  white-space: nowrap;
}

.value data {
  font-variant-numeric: tabular-nums;
}

.value--unverified data {
  text-decoration: underline dotted var(--c-border-strong);
  text-underline-offset: 3px;
}

.value--missing {
  color: var(--c-ink-muted);
}

.unit {
  font-size: 0.85em;
  color: var(--c-ink-muted);
}

/* Photos */

.crop-card__media {
  margin: -1.4rem -1.5rem 0;
}

.crop-card__media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  background-color: var(--c-surface-alt);
  border-radius: var(--radius-md) var(--radius-md) 0 0;
}

.crop-card__media figcaption {
  padding: 0.35rem 1.5rem 0;
  font-size: 0.68rem;
  line-height: 1.4;
  color: var(--c-ink-muted);
  overflow-wrap: anywhere;
}

.crop-card__media figcaption a {
  color: inherit;
}

.table-thumb {
  display: block;
  width: 56px;
  height: 42px;
  margin-bottom: 0.3rem;
  object-fit: cover;
  border-radius: var(--radius-sm);
  background-color: var(--c-surface-alt);
}

/* Pending composition */

.pending {
  padding: 0.85rem 1rem;
  font-size: 0.84rem;
  color: var(--c-ink-muted);
  background-color: var(--c-surface-alt);
  border: 1px dashed var(--c-border-strong);
  border-radius: var(--radius-sm);
}

.pending__title {
  margin-bottom: 0.25rem;
  font-weight: 700;
  color: var(--c-ink);
}

.status--neutral { background-color: var(--c-surface-alt); color: var(--c-ink); border: 1px solid var(--c-border); }

/* Notes and citations */

.notes__heading {
  margin-top: 0.75rem;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--c-terracotta-700);
}

.notes__heading:first-child {
  margin-top: 0;
}

.notes__list {
  margin-top: 0.3rem;
  padding-left: 1.1rem;
  font-size: 0.83rem;
  line-height: 1.5;
}

.notes__list li + li {
  margin-top: 0.35rem;
}

.citation-group {
  white-space: normal;
}

.citation {
  color: var(--c-forest-700);
}

.citation-needed,
.note-flag {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 600;
  padding: 0 0.35rem;
  border-radius: var(--radius-sm);
  color: var(--c-caution-ink);
  background-color: var(--c-caution-bg);
}

/* Provenance */

.provenance {
  margin-top: auto;
  padding-top: 0.75rem;
  font-size: 0.82rem;
  border-top: 1px solid var(--c-border);
}

.provenance summary {
  font-weight: 600;
  color: var(--c-forest-700);
  cursor: pointer;
}

.provenance__list {
  display: grid;
  gap: 0.4rem;
  margin-top: 0.6rem;
}

.provenance__list dt {
  font-weight: 700;
}

.provenance__heading {
  margin-top: 0.8rem;
  font-size: 0.82rem;
}

.checks {
  display: grid;
  gap: 0.35rem;
  margin-top: 0.35rem;
  padding: 0;
  list-style: none;
}

.check {
  display: grid;
  grid-template-columns: 4.5rem 1fr;
  gap: 0 0.5rem;
}

.check__status {
  grid-row: span 2;
  align-self: start;
  text-align: center;
  font-size: 0.68rem;
  font-weight: 700;
  text-transform: uppercase;
  padding: 0.1rem 0.3rem;
  border-radius: var(--radius-sm);
  background-color: var(--c-surface-alt);
}

.check--pass .check__status { background-color: var(--c-positive-bg); color: var(--c-positive-ink); }
.check--warn .check__status { background-color: var(--c-caution-bg); color: var(--c-caution-ink); }
.check--fail .check__status { background-color: var(--c-danger-bg); color: var(--c-danger-ink); }

.check__label {
  font-weight: 600;
}

.check__detail {
  color: var(--c-ink-muted);
}

/* Table view */

.table-wrap {
  /* position: relative keeps absolutely positioned descendants (visually
     hidden text) inside the scroll container instead of widening the page. */
  position: relative;
  overflow-x: auto;
  background-color: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.85rem;
}

.data-table caption {
  padding: 0.75rem 1rem;
  text-align: left;
  font-size: 0.85rem;
  color: var(--c-ink-muted);
}

.data-table th,
.data-table td {
  padding: 0.55rem 0.75rem;
  text-align: left;
  vertical-align: top;
  border-top: 1px solid var(--c-border);
}

.data-table thead th {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  color: var(--c-ink-muted);
  background-color: var(--c-surface-alt);
  vertical-align: bottom;
}

.data-table thead .num {
  white-space: normal;
  min-width: 5.5rem;
}

.data-table thead .unit {
  display: block;
  font-weight: 400;
  text-transform: none;
  letter-spacing: 0;
}

.data-table th[aria-sort] {
  color: var(--c-forest-900);
  box-shadow: inset 0 -3px 0 var(--c-terracotta);
}

.data-table .num {
  text-align: right;
  font-family: var(--font-mono);
  white-space: nowrap;
}

.data-table tbody th {
  position: sticky;
  left: 0;
  background-color: var(--c-surface);
}

.table-name {
  display: block;
  font-weight: 700;
}

.table-taxon {
  display: block;
  font-size: 0.78rem;
  font-weight: 400;
  color: var(--c-ink-muted);
}

/* Empty state */

.empty-state {
  display: grid;
  justify-items: center;
  gap: 0.6rem;
  padding: 3.5rem 1rem;
  text-align: center;
  background-color: var(--c-surface);
  border: 1px dashed var(--c-border-strong);
  border-radius: var(--radius-md);
}

.empty-state h2 {
  font-family: var(--font-serif);
  font-size: 1.3rem;
}

/* Methods and references */

.prose {
  max-width: 78ch;
  margin-top: 3rem;
  font-size: 0.92rem;
}

.prose h2 {
  margin-bottom: 0.75rem;
  font-family: var(--font-serif);
  font-size: 1.4rem;
  color: var(--c-forest-900);
}

.prose h3 {
  margin: 1.25rem 0 0.5rem;
  font-size: 1rem;
}

.prose p + ul,
.methods-list {
  margin-top: 0.75rem;
}

.methods-list {
  padding-left: 1.2rem;
}

.methods-list li + li {
  margin-top: 0.5rem;
}

.definition-list > div {
  display: grid;
  grid-template-columns: 9rem 1fr;
  gap: 1rem;
  padding: 0.35rem 0;
  border-bottom: 1px solid var(--c-border);
}

.definition-list dt {
  font-weight: 700;
}

.reference-list {
  padding-left: 0;
  list-style: none;
}

.reference-list li {
  padding-left: 1.5rem;
  text-indent: -1.5rem;
  overflow-wrap: anywhere;
}

.reference-list li + li {
  margin-top: 0.5rem;
}

.reference-list li:target {
  background-color: #fff7e8;
  outline: 2px solid var(--c-gold);
  outline-offset: 2px;
}

/* Footer */

.site-footer {
  padding: 2rem 0 2.5rem;
  font-size: 0.82rem;
  color: var(--c-ink-muted);
  border-top: 1px solid var(--c-border);
}

.site-footer p + p {
  margin-top: 0.5rem;
}

/* Responsive */

@media (max-width: 860px) {
  .controls {
    grid-template-columns: minmax(0, 1fr);
  }

  .site-header__inner {
    grid-template-columns: minmax(0, 1fr);
  }
}

@media (max-width: 480px) {
  .container {
    padding-inline: 1rem;
  }

  .metrics {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    padding: 0.6rem 0.4rem;
  }

  .definition-list > div {
    grid-template-columns: 1fr;
    gap: 0.15rem;
  }
}

@media print {
  .controls,
  .skip-link,
  .notice {
    display: none;
  }

  body {
    background: #fff;
  }

  .site-header {
    color: #000;
    background: none;
    padding: 1rem 0;
  }

  .crop-card {
    break-inside: avoid;
    box-shadow: none;
  }
}