/* CropCurve: a botanical, editorial interface.
   Paper and ink, deep moss greens, soil and ochre. One memorable element (the herbarium
   specimen sheet); everything else stays quiet: hairline rules, generous space, few boxes. */

:root {
  --paper: #f5f1e8;
  --paper-hi: #fbf8f2;
  --ink: #1e2a22;
  --ink-soft: #4d574b;
  --moss: #24452f;
  --moss-hover: #1a3523;
  --leaf: #3c6b4a;
  --sage: #98a38b;
  --rule: #d9d1c1;
  --rule-strong: #bfb39c;
  --soil: #7a4a2b;
  --ochre: #a8792a;
  --wash: #efe7d6;
  --danger: #8a3b22;

  --serif: "Newsreader", "Iowan Old Style", "Palatino Linotype", Georgia, serif;
  --sans: "Public Sans", "Segoe UI", system-ui, -apple-system, sans-serif;

  --gutter: clamp(1.25rem, 4vw, 3rem);
  --max: 76rem;

  box-sizing: border-box;
  padding-top: env(safe-area-inset-top, 0px);
  padding-bottom: env(safe-area-inset-bottom, 0px);
  color-scheme: light;
}
*, *::before, *::after { box-sizing: inherit; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font: 400 1rem/1.6 var(--sans);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
h1, h2, h3 { font-family: var(--serif); font-weight: 400; margin: 0; color: var(--ink); }
p { margin: 0; }
img { max-width: 100%; display: block; }
:focus-visible { outline: 2px solid var(--moss); outline-offset: 3px; }
[hidden] { display: none !important; }

/* ---------- masthead ---------- */
.masthead {
  max-width: var(--max); margin: 0 auto; padding: 1.5rem var(--gutter);
  display: flex; align-items: center; justify-content: space-between; gap: 1rem;
}
.wordmark {
  display: inline-flex; align-items: center; gap: .55rem;
  font: 500 1.35rem/1 var(--serif); color: var(--moss); text-decoration: none; letter-spacing: -.01em;
}
.wordmark svg { width: 1.4rem; height: 1.4rem; fill: var(--moss); }
.wordmark .vein { stroke: var(--paper); stroke-width: 1.5; fill: none; }
.nav { display: flex; gap: 1.75rem; }
.nav a { color: var(--ink-soft); text-decoration: none; font-size: .95rem; }
.nav a:hover { color: var(--ink); text-decoration: underline; text-underline-offset: 4px; text-decoration-thickness: 1px; }

.demo-note {
  max-width: var(--max); margin: 0 auto; padding: 0 var(--gutter);
  font-size: .9rem; color: var(--ink-soft);
}
.demo-note::before {
  content: ""; display: inline-block; width: .5rem; height: .5rem; border-radius: 50%;
  background: var(--ochre); margin-right: .6rem; vertical-align: .1em;
}

/* ---------- shared controls ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .5rem;
  font: 500 1rem/1 var(--sans); padding: .95rem 1.4rem; min-height: 48px;
  border-radius: 3px; cursor: pointer; text-decoration: none; border: 1px solid transparent;
}
.btn-primary { background: var(--moss); color: var(--paper-hi); }
.btn-primary:hover { background: var(--moss-hover); }
.btn-primary[disabled] { background: var(--sage); cursor: progress; }
.btn-outline { background: transparent; color: var(--ink); border-color: var(--ink); }
.btn-outline:hover { background: var(--ink); color: var(--paper-hi); }
.link {
  background: none; border: 0; padding: 0; font: inherit; color: var(--moss); cursor: pointer;
  text-decoration: underline; text-underline-offset: 3px; text-decoration-thickness: 1px;
}
.link:hover { color: var(--ink); }
.hint { color: var(--ink-soft); font-size: .9rem; }
.hint.ok { color: var(--leaf); }

.segmented { display: inline-flex; flex-wrap: wrap; justify-self: start; border: 1px solid var(--rule-strong); border-radius: 3px; background: var(--paper-hi); }
.segmented label { position: relative; }
.segmented label + label { border-left: 1px solid var(--rule-strong); }
.segmented input { position: absolute; opacity: 0; inset: 0; margin: 0; cursor: pointer; }
.segmented span { display: block; padding: .7rem 1.05rem; font-size: .95rem; cursor: pointer; min-height: 44px; }
.segmented input:checked + span { background: var(--ink); color: var(--paper-hi); }
.segmented input:focus-visible + span { outline: 2px solid var(--moss); outline-offset: 2px; }
.segmented.compact span { padding: .55rem .9rem; font-size: .9rem; min-height: 40px; }

.slider { display: grid; grid-template-columns: 7.5rem 1fr 4.5rem; align-items: center; gap: 1rem; font-size: .95rem; }
.slider input { width: 100%; accent-color: var(--moss); }
.slider output { text-align: right; font-variant-numeric: tabular-nums; color: var(--ink-soft); }

/* ---------- intro / upload ---------- */
.intro {
  max-width: var(--max); margin: 0 auto; padding: clamp(2rem, 6vw, 4.5rem) var(--gutter) 5rem;
  display: grid; grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); gap: clamp(2.5rem, 6vw, 6rem);
}
.intro h1 {
  font-size: clamp(2.1rem, 4vw, 3.15rem); line-height: 1.08; letter-spacing: -.015em; max-width: 17ch;
  font-variation-settings: "opsz" 60;
}
.lede { margin-top: 1.25rem; max-width: 36rem; font-size: 1.1rem; color: var(--ink-soft); }

#check-form { margin-top: 2.5rem; }

.upload {
  position: relative; background: var(--paper-hi);
  border: 1px dashed var(--rule-strong); border-radius: 2px;
  padding: 2rem 2rem 2.1rem; transition: border-color .15s, background-color .15s;
}
.upload input[type="file"] { position: absolute; inset: 0; opacity: 0; cursor: pointer; width: 100%; }
.upload.dragging { border-style: solid; border-color: var(--moss); background: #eef0e5; }
.upload:focus-within { border-color: var(--moss); }
.upload-title { font: 400 1.45rem/1.25 var(--serif); }
.upload-hint { color: var(--ink-soft); margin-top: .35rem; font-size: .95rem; }
.upload-empty .btn { margin-top: 1.4rem; position: relative; z-index: 1; }
.upload-filled { display: grid; grid-template-columns: 9rem 1fr; gap: 1.5rem; align-items: center; }
.upload-filled img { width: 9rem; height: 9rem; object-fit: cover; border: 1px solid var(--rule); }
.upload-filled .link { position: relative; z-index: 1; display: inline-block; margin-top: .6rem; }
.file-name { font: 400 1.2rem/1.3 var(--serif); word-break: break-word; }

.samples { margin-top: 1rem; display: flex; flex-wrap: wrap; align-items: center; gap: .75rem 1rem; font-size: .92rem; color: var(--ink-soft); }
.sample-row { display: flex; gap: .5rem; }
.sample-row button {
  width: 3.25rem; height: 3.25rem; padding: 0; border: 1px solid var(--rule); background: var(--paper-hi);
  cursor: pointer; border-radius: 2px; overflow: hidden;
}
.sample-row button:hover { border-color: var(--ink); }
.sample-row img { width: 100%; height: 100%; object-fit: cover; }

.details { margin-top: 2.25rem; border-bottom: 1px solid var(--rule); }
.row { display: grid; grid-template-columns: 11.5rem 1fr; gap: 1.5rem; padding: 1.4rem 0; border-top: 1px solid var(--rule); }
.row-label { font-weight: 500; font-size: .95rem; padding-top: .6rem; }
.row-body { display: grid; gap: 1rem; min-width: 0; }
.weather-panel { display: grid; gap: .9rem; }
.place { display: flex; flex-wrap: wrap; align-items: center; gap: .75rem; }
.place input {
  flex: 1 1 14rem; font: inherit; padding: .7rem .85rem; min-height: 44px;
  background: var(--paper-hi); color: var(--ink); border: 1px solid var(--rule-strong); border-radius: 3px;
}
.place input:focus { outline: none; border-color: var(--moss); box-shadow: 0 0 0 1px var(--moss); }
.or { color: var(--ink-soft); font-size: .9rem; }
.presets { display: flex; flex-wrap: wrap; gap: .5rem; }
.presets button {
  font: inherit; font-size: .9rem; padding: .45rem .8rem; background: transparent; color: var(--ink);
  border: 1px solid var(--rule-strong); border-radius: 3px; cursor: pointer;
}
.presets button:hover { border-color: var(--ink); }
.presets button[aria-pressed="true"] { background: var(--wash); border-color: var(--ink); }

.form-error { margin-top: 1.25rem; padding: .8rem 1rem; border-left: 3px solid var(--danger); background: #f3e4d9; color: var(--danger); }
.submit-row { margin-top: 1.75rem; display: flex; flex-wrap: wrap; align-items: center; gap: 1rem 1.5rem; }
.submit-row .btn-primary { min-width: 13rem; font-size: 1.05rem; }
.fineprint { font-size: .85rem; color: var(--ink-soft); }

/* ---------- specimen sheet (the one ornamental element) ---------- */
.specimen { padding-top: clamp(0rem, 4vw, 3.5rem); }
.sheet {
  position: sticky; top: 2rem; margin: 0;
  background: var(--paper-hi); border: 1px solid var(--rule);
  padding: 2.25rem 2rem 1.5rem;
  box-shadow: 0 1px 0 rgba(70, 55, 30, .04), 0 18px 40px -28px rgba(70, 55, 30, .35);
}
.mount { position: relative; display: grid; place-items: center; min-height: 18rem; }
.mount img { width: 100%; max-width: 21rem; aspect-ratio: 1; object-fit: cover; filter: saturate(.92) contrast(1.02); }
.tape {
  position: absolute; top: -.6rem; width: 4.5rem; height: 1.15rem; z-index: 1;
  background: rgba(222, 208, 170, .62); box-shadow: 0 1px 1px rgba(80, 60, 20, .08);
}
.tape-l { left: 12%; transform: rotate(-5deg); }
.tape-r { right: 12%; transform: rotate(4deg); }
.specimen-drawing { width: 62%; max-width: 13rem; }
.specimen-drawing .blade { fill: #dfe3d2; stroke: var(--leaf); stroke-width: 1.4; }
.specimen-drawing .veins, .specimen-drawing .stem { fill: none; stroke: var(--leaf); stroke-width: 1.1; stroke-linecap: round; }
.label {
  margin: 1.75rem 0 0 auto; width: min(100%, 16rem);
  border: 1px solid var(--ink); padding: .85rem 1rem .9rem; background: var(--paper-hi);
  font-size: .85rem; line-height: 1.45;
}
.label-latin { font: italic 400 1.05rem/1.3 var(--serif); }
.label-name { margin-top: .15rem; }
.label-note { color: var(--ink-soft); font-size: .8rem; margin-top: .45rem; padding-top: .45rem; border-top: 1px solid var(--rule); }
.label .link { margin-top: .5rem; font-size: .85rem; }

/* ---------- results ---------- */
.results {
  max-width: var(--max); margin: 0 auto; padding: clamp(1.5rem, 5vw, 3.5rem) var(--gutter) 5rem;
  display: grid; grid-template-columns: minmax(0, 4fr) minmax(0, 7fr); gap: clamp(2.5rem, 6vw, 5.5rem);
  align-items: start;
}
.evidence { position: sticky; top: 1.5rem; }
.photo-frame {
  margin: 0; background: var(--paper-hi); border: 1px solid var(--rule); padding: .7rem .7rem .55rem;
  box-shadow: 0 16px 34px -28px rgba(70, 55, 30, .4);
}
.photo-frame img { width: 100%; aspect-ratio: 1; object-fit: cover; }
.photo-frame figcaption { font: italic 400 .9rem/1.4 var(--serif); color: var(--ink-soft); margin-top: .5rem; }

.diagnosis { margin-top: 1.75rem; }
.dx-crop { font-size: .95rem; color: var(--ink-soft); display: flex; flex-wrap: wrap; gap: .5rem; align-items: baseline; }
.dx-crop em { font-family: var(--serif); font-size: 1.05rem; color: var(--ink); }
.dx-name { font-size: 2rem; line-height: 1.1; margin-top: .3rem; letter-spacing: -.01em; }
.dx-pathogen { color: var(--ink-soft); font-size: .92rem; margin-top: .35rem; }
.meter { height: 2px; background: var(--rule); margin-top: 1.1rem; }
.meter span { display: block; height: 100%; background: var(--ink); width: 0; transition: width .6s ease-out; }
.meter-text { font-size: .9rem; margin-top: .45rem; font-variant-numeric: tabular-nums; }
.alt { margin-top: 1rem; padding: .9rem 1rem; background: var(--wash); font-size: .92rem; display: grid; gap: .55rem; }
.warnings { margin: 1rem 0 0; padding-left: 1.1rem; color: var(--danger); font-size: .92rem; }
.warnings:empty { display: none; }
.facts { margin: 1.5rem 0 0; }
.facts dt { font-weight: 500; font-size: .9rem; margin-top: 1rem; }
.facts dd { margin: .2rem 0 0; color: var(--ink-soft); font-size: .95rem; }

.verdict { --tone: var(--ochre); padding-bottom: 1.75rem; }
.verdict::before { content: ""; display: block; width: 2.75rem; height: 3px; background: var(--tone); margin-bottom: 1.1rem; }
.verdict.act_now, .verdict.spread_warning { --tone: var(--soil); }
.verdict.act_by { --tone: var(--ochre); }
.verdict.low_risk, .verdict.healthy { --tone: var(--leaf); }
.verdict.unknown { --tone: var(--sage); }
.verdict h2 { font-size: clamp(2rem, 3.6vw, 2.9rem); line-height: 1.08; letter-spacing: -.015em; font-variation-settings: "opsz" 60; }
.verdict p { margin-top: .9rem; font-size: 1.1rem; color: var(--ink-soft); max-width: 38rem; }
.verdict.reveal { animation: settle .5s ease-out both; }
@keyframes settle { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: none; } }

.curve { border-top: 1px solid var(--rule); padding-top: 1.4rem; }
.legend { display: flex; flex-wrap: wrap; gap: .4rem 1.4rem; font-size: .88rem; color: var(--ink-soft); margin-bottom: .9rem; }
.key::before { content: ""; display: inline-block; width: 1.3rem; border-top: 2.5px solid; vertical-align: middle; margin-right: .45rem; }
.key-none::before { border-color: var(--soil); }
.key-today::before { border-color: var(--leaf); }
.key-delay::before { border-color: var(--ochre); border-top-style: dashed; }
.key-limit::before { border-color: var(--sage); border-top-width: 1.5px; border-top-style: dotted; }
.chart-box { position: relative; height: clamp(240px, 32vw, 340px); }
.delay { margin-top: 1.4rem; grid-template-columns: 7.5rem 1fr 4.5rem; }
.readout { margin-top: .9rem; font-size: 1rem; max-width: 40rem; }
.readout strong { font-weight: 600; font-variant-numeric: tabular-nums; }
.no-forecast { border-top: 1px solid var(--rule); padding-top: 1.4rem; color: var(--ink-soft); }

.block { display: grid; grid-template-columns: 10rem 1fr; gap: 1.5rem; border-top: 1px solid var(--rule); padding: 1.6rem 0; margin-top: 2rem; }
.block + .block { margin-top: 0; }
.block h3 { font-size: 1.25rem; line-height: 1.25; }
.block > div, .block > p { min-width: 0; }
.product { font: 400 1.45rem/1.25 var(--serif); }
.rate { margin-top: .35rem; font-size: 1.05rem; }
.rate strong { font-weight: 600; }
.traits { margin: .6rem 0 0; font-size: .9rem; color: var(--ink-soft); }
.why { margin: 1rem 0 0; padding-left: 1.1rem; }
.why li + li { margin-top: .3rem; }
.rec-note { margin-top: .9rem; color: var(--ink-soft); font-size: .95rem; }
.rec-list { margin: 1rem 0 0; padding-left: 1.1rem; color: var(--ink-soft); font-size: .92rem; }
.rec-list li + li { margin-top: .35rem; }
.alts { margin-top: 1.25rem; padding-top: 1rem; border-top: 1px dotted var(--rule-strong); font-size: .92rem; }
.alts p + p { margin-top: .25rem; }

.table-scroll { overflow-x: auto; margin-top: .75rem; }
.days { border-collapse: collapse; font-size: .85rem; font-variant-numeric: tabular-nums; white-space: nowrap; }
.days th, .days td { padding: .35rem .7rem; text-align: center; border-left: 1px solid var(--rule); }
.days th:first-child, .days td:first-child { border-left: 0; text-align: left; padding-left: 0; color: var(--ink-soft); font-weight: 400; }
.days th { font-weight: 500; }
.days .est { color: var(--sage); font-style: italic; }
.again { margin-top: 2.5rem; }

/* ---------- how it works ---------- */
.how, .crops {
  max-width: var(--max); margin: 0 auto; padding: 4.5rem var(--gutter);
  display: grid; grid-template-columns: minmax(0, 4fr) minmax(0, 8fr); gap: clamp(2rem, 5vw, 5rem);
  border-top: 1px solid var(--rule);
}
.how > h2, .crops-head h2 { font-size: clamp(1.7rem, 2.6vw, 2.15rem); line-height: 1.15; }
.steps { list-style: none; margin: 0; padding: 0; counter-reset: step; }
.steps li { counter-increment: step; display: grid; grid-template-columns: 3.5rem 1fr; padding: 1.4rem 0; border-top: 1px solid var(--rule); }
.steps li:first-child { border-top: 0; padding-top: 0; }
.steps li::before { content: counter(step); font: 400 2rem/1 var(--serif); color: var(--ochre); grid-row: span 2; }
.steps h3 { font-size: 1.3rem; }
.steps p { color: var(--ink-soft); margin-top: .35rem; max-width: 38rem; }

.crops-head p { margin-top: 1rem; color: var(--ink-soft); font-size: .95rem; max-width: 18rem; }
.crop-list { columns: 2 18rem; column-gap: 3rem; }
.crop { break-inside: avoid; padding: 0 0 1.4rem; }
.crop h3 { font-size: 1.3rem; display: flex; flex-wrap: wrap; gap: .5rem; align-items: baseline; }
.crop h3 em { font-size: .95rem; color: var(--ink-soft); }
.crop p { margin-top: .2rem; color: var(--ink-soft); font-size: .95rem; }
.has-forecast, .has-forecast-sample { color: var(--moss); text-decoration: underline; text-decoration-color: var(--ochre); text-underline-offset: 3px; text-decoration-thickness: 1.5px; }



/* ---------- small screens ---------- */
@media (max-width: 860px) {
  .intro, .results, .how, .crops, .footer { grid-template-columns: 1fr; }
  .specimen { padding-top: 0; }
  .sheet { position: static; max-width: 26rem; }
  .evidence { position: static; }
  .photo-frame { max-width: 22rem; }
  .row, .block { grid-template-columns: 1fr; gap: .75rem; }
  .row-label { padding-top: 0; }
}
@media (max-width: 560px) {
  .nav { gap: 1rem; }
  .nav a:first-child { display: none; }
  .upload { padding: 1.5rem 1.25rem; }
  .upload-filled { grid-template-columns: 6rem 1fr; gap: 1rem; }
  .upload-filled img { width: 6rem; height: 6rem; }
  .segmented { display: flex; }
  .segmented label { flex: 1; text-align: center; }
  .slider, .delay { grid-template-columns: 1fr 4rem; }
  .slider > span { grid-column: 1 / -1; }
  .submit-row .btn-primary { width: 100%; }
  .photo-frame { max-width: 10.5rem; padding: .45rem .45rem .35rem; }
  .diagnosis { margin-top: 1.1rem; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
  html { scroll-behavior: auto; }
}
/* ---------- footer: a herbarium label on a moss-green band ---------- */
.footer { background: var(--moss); color: #e8e3d4; margin-top: 2rem; }
.footer-inner {
  max-width: var(--max); margin: 0 auto; padding: clamp(3rem, 7vw, 5rem) var(--gutter) 3rem;
  display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 6fr); gap: clamp(2.5rem, 6vw, 6rem); align-items: center;
}
.footer-mark {
  display: flex; align-items: center; gap: .7rem;
  font: 400 clamp(2.2rem, 4.5vw, 3.2rem)/1 var(--serif); letter-spacing: -.02em; color: var(--paper-hi);
}
.footer-mark svg { width: .8em; height: .8em; fill: var(--sage); flex: none; }
.footer-mark .vein { stroke: var(--moss); stroke-width: 1.5; fill: none; }
.footer-tagline { margin-top: 1rem; font: italic 400 1.15rem/1.4 var(--serif); color: #cfd6c4; max-width: 22rem; }

.team-label {
  position: relative; justify-self: end; width: min(100%, 27rem); margin: 0;
  background: var(--paper-hi); color: var(--ink);
  border: 1px solid var(--ink); outline: 1px solid var(--ink); outline-offset: -6px;
  padding: 1.6rem 1.7rem 1.3rem;
  transform: rotate(-1.4deg);
  box-shadow: 0 22px 40px -24px rgba(0, 0, 0, .65);
}
.team-tape {
  position: absolute; top: -.7rem; left: 50%; width: 5.5rem; height: 1.3rem;
  transform: translateX(-50%) rotate(3deg);
  background: rgba(222, 208, 170, .78); box-shadow: 0 1px 1px rgba(60, 45, 15, .12);
}
.team-label-head {
  display: flex; justify-content: space-between; align-items: baseline; gap: 1rem;
  padding-bottom: .7rem; border-bottom: 1px solid var(--ink);
}
.team-label-title { font: italic 400 1.05rem/1.3 var(--serif); }
.team-label-meta { font-size: .8rem; color: var(--ink-soft); font-variant-numeric: tabular-nums; }
.team-names {
  list-style: none; margin: 0; padding: 1rem 0 .9rem;
  display: grid; grid-template-columns: 1fr 1fr; gap: .55rem 1.5rem;
  font: 400 1.25rem/1.25 var(--serif);
}
.team-label-foot { padding-top: .7rem; border-top: 1px dotted var(--rule-strong); font-size: .78rem; color: var(--ink-soft); }

.footer-note {
  max-width: var(--max); margin: 0 auto; padding: 1.4rem var(--gutter) 2.2rem;
  border-top: 1px solid rgba(232, 227, 212, .18);
  font-size: .85rem; line-height: 1.55; color: rgba(232, 227, 212, .72);
}

@media (max-width: 860px) {
  .footer-inner { grid-template-columns: 1fr; }
  .team-label { justify-self: start; transform: rotate(-.8deg); }
}
@media (max-width: 420px) {
  .team-names { grid-template-columns: 1fr; }
  .team-label { padding: 1.4rem 1.3rem 1.1rem; }
}