/* AgriSense — single stylesheet, no framework, theme-aware.
   Type stack approximates the design's IBM Plex with system faces, so the page
   makes no font request: diagnosis has to keep working with the network off. */

:root {
  --bg: #f6f7f4;
  --surface: #ffffff;
  --surface-2: #f0f2ec;
  --ink: #1b2019;
  --ink-2: #5c6659;
  --line: #dfe3d9;
  --accent: #2e7d4f;
  --accent-ink: #ffffff;
  --accent-soft: #e4f2e8;
  --warn: #a8630a;
  --warn-soft: #fdf1de;
  --danger: #b3261e;
  --danger-soft: #fdeceb;
  --radius: 14px;
  --shadow: 0 1px 2px rgba(0,0,0,.05), 0 6px 18px rgba(0,0,0,.05);
  --sans: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --mono: ui-monospace, SFMono-Regular, "Cascadia Mono", Menlo, monospace;
  --serif: ui-serif, Georgia, "Times New Roman", serif;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #141713;
    --surface: #1c201b;
    --surface-2: #232821;
    --ink: #e8ece5;
    --ink-2: #a3ad9d;
    --line: #313629;
    --accent: #7dd39b;
    --accent-ink: #10140f;
    --accent-soft: #1e3327;
    --warn: #e0a350;
    --warn-soft: #33280f;
    --danger: #f2857c;
    --danger-soft: #35211f;
    --shadow: 0 1px 2px rgba(0,0,0,.4), 0 6px 18px rgba(0,0,0,.3);
  }
}

* { box-sizing: border-box; }

/* Several blocks below set display, which would otherwise beat the UA rule. */
[hidden] { display: none !important; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font: 15px/1.55 var(--sans);
  -webkit-font-smoothing: antialiased;
}

h1 { font-size: 2.6rem; line-height: 1.1; margin: 0; letter-spacing: -.03em; font-weight: 600; }
h2 { font-size: .95rem; margin: 0; letter-spacing: -.005em; font-weight: 600; }
h3 { font-size: .95rem; margin: 1.5rem 0 .4rem; }
p { margin: .55rem 0; }
a { color: var(--accent); text-decoration: none; font-weight: 500; }
a:hover { text-decoration: underline; }
code { font-family: var(--mono); font-size: .88em;
       background: var(--surface-2); padding: .1em .35em; border-radius: 4px; }

.muted { color: var(--ink-2); }
.small { font-size: .84rem; }
.mono { font-family: var(--mono); }
.tc { text-align: center; }
.tabular { font-variant-numeric: tabular-nums; }

/* ---------- brand ---------- */
.brand { display: flex; gap: .7rem; align-items: center; }
.mark {
  width: 32px; height: 32px; border-radius: 9px; flex: none;
  background: var(--accent); color: var(--accent-ink);
  display: flex; align-items: center; justify-content: center;
  font-weight: 600; font-size: 1rem; letter-spacing: -.02em;
}
.wordmark { font-size: 1.05rem; font-weight: 600; letter-spacing: -.01em; }
.sublabel { font-family: var(--mono); font-size: .64rem; color: var(--ink-2); letter-spacing: .05em; }

/* ---------- auth gate ---------- */
.authgate { min-height: 100vh; display: flex; align-items: center; justify-content: center; padding: 2rem 1.25rem; }
.authgrid {
  width: 100%; max-width: 1080px;
  display: grid; gap: 3rem; grid-template-columns: 1fr;
  align-items: center;
}
@media (min-width: 900px) { .authgrid { grid-template-columns: 1fr 420px; } }

.authhero { display: flex; flex-direction: column; gap: 1.3rem; }
.authhero h1 { max-width: 14ch; }
.lede { font-size: 1.02rem; line-height: 1.6; color: var(--ink-2); max-width: 46ch; margin: 0; }
.statlist { display: flex; flex-direction: column; gap: .55rem; }
.statrow { display: flex; gap: .8rem; align-items: baseline; font-size: .88rem; color: var(--ink-2); }
.statnum { font-family: var(--mono); font-size: .78rem; color: var(--accent); width: 48px; flex: none; }

.authcard { display: flex; flex-direction: column; gap: 1.1rem; padding: 1.8rem; }
.authcard-head h2 { font-size: 1.35rem; letter-spacing: -.01em; }
.authcard-head p { margin: .35rem 0 0; }
.authform { display: flex; flex-direction: column; gap: .8rem; margin: 0; }
.authform label { display: flex; flex-direction: column; gap: .35rem; font-size: .8rem; color: var(--ink-2); }
.authform input {
  font: inherit; font-size: .95rem; padding: .65rem .8rem; border-radius: 9px;
  border: 1px solid var(--line); background: var(--surface-2); color: var(--ink);
}
.authform input:focus-visible { outline: 2px solid var(--accent); outline-offset: 1px; }
.switchline { margin: 0; font-size: .84rem; color: var(--ink-2); text-align: center; }
.divider { display: flex; align-items: center; gap: .75rem; }
.divider span { height: 1px; background: var(--line); flex: 1; }
.divider em { font-family: var(--mono); font-style: normal; font-size: .7rem; color: var(--ink-2); }

/* ---------- top bar ---------- */
.topbar {
  display: flex; flex-wrap: wrap; gap: 1rem; align-items: center;
  justify-content: space-between;
  padding: .9rem 1.5rem;
  background: var(--surface);
  border-bottom: 1px solid var(--line);
}
.session { display: flex; align-items: center; gap: .7rem; }
.sessionEmail { font-size: .82rem; color: var(--ink-2); }

.chips { display: flex; flex-wrap: wrap; gap: .4rem; }
.chip {
  font-family: var(--mono); font-size: .69rem; padding: .3rem .6rem; border-radius: 999px;
  background: var(--surface-2); color: var(--ink-2); border: 1px solid var(--line);
  white-space: nowrap;
}
.chip.ok { background: var(--accent-soft); color: var(--accent); border-color: transparent; }
.chip.bad { background: var(--warn-soft); color: var(--warn); border-color: transparent; }

/* ---------- tabs ---------- */
.tabs {
  display: flex; gap: .1rem; overflow-x: auto;
  padding: 0 1.5rem; border-bottom: 1px solid var(--line);
  background: var(--surface);
}
.tab {
  border: 0; background: none; cursor: pointer; white-space: nowrap;
  padding: .8rem .9rem;
  font: inherit; font-size: .88rem; color: var(--ink-2);
  border-bottom: 2px solid transparent;
}
.tab:hover { color: var(--ink); }
.tab.is-active { color: var(--accent); border-bottom-color: var(--accent); font-weight: 600; }

main { max-width: 1240px; margin: 0 auto; padding: 1.6rem 1.5rem; }
.panel { display: none; }
.panel.is-active { display: block; }

.grid.two { display: grid; gap: 1.2rem; grid-template-columns: 1fr; align-items: start; }
@media (min-width: 940px) { .grid.two { grid-template-columns: 1fr 1fr; } }

.card {
  background: var(--surface); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 1.4rem; box-shadow: var(--shadow);
}
.card + .card { margin-top: 1.2rem; }
.cardhead {
  display: flex; align-items: baseline; justify-content: space-between;
  gap: .8rem; margin-bottom: 1.1rem; flex-wrap: wrap;
}
.cardhead p { margin: .2rem 0 0; }

/* ---------- buttons & inputs ---------- */
.btn {
  display: inline-block; cursor: pointer; font: inherit; font-size: .87rem;
  padding: .6rem 1.1rem; border-radius: 9px; border: 1px solid transparent;
  background: var(--accent); color: var(--accent-ink); font-weight: 600;
  text-align: center;
}
.btn:hover { filter: brightness(.94); }
.btn.ghost { background: transparent; color: var(--ink); border-color: var(--line); font-weight: 500; }
.btn.ghost:hover { background: var(--surface-2); filter: none; }
.btn.small { font-size: .8rem; padding: .4rem .8rem; }
.btn.block { width: 100%; }
.btn.danger { color: var(--danger); }
.btn[disabled] { opacity: .45; cursor: not-allowed; }
.row { display: flex; gap: .5rem; align-items: center; justify-content: center; flex-wrap: wrap; }
.row.gap { margin-top: .9rem; justify-content: flex-start; }
.presetslabel { letter-spacing: .1em; }

.dropzone {
  border: 2px dashed var(--line); border-radius: var(--radius);
  padding: 2.2rem 1rem; text-align: center; transition: border-color .15s, background .15s;
  background: var(--bg);
}
.dropzone.drag { border-color: var(--accent); background: var(--accent-soft); }
.dropzone p { margin: .3rem 0; }
.dz-title { font-size: 1.15rem; font-weight: 600; letter-spacing: -.01em; }
.hint { font-size: .78rem; color: var(--ink-2); margin-top: .8rem; }

.fields { display: grid; gap: .9rem; }
.fields label { display: grid; gap: .3rem; font-size: .82rem; color: var(--ink-2); }
.fields output { float: right; color: var(--ink); font-weight: 600;
                 font-family: var(--mono); font-size: .8rem; font-variant-numeric: tabular-nums; }
.fields select {
  font: inherit; font-size: .9rem; padding: .55rem .6rem; border-radius: 9px;
  border: 1px solid var(--line); background: var(--surface-2); color: var(--ink);
}
.fields input[type=range] { width: 100%; accent-color: var(--accent); }

/* ---------- preview ---------- */
.preview { display: flex; gap: 1.2rem; margin-top: 1.2rem; flex-wrap: wrap; }
.preview figure { margin: 0; }
.preview canvas {
  width: 160px; height: 160px; image-rendering: pixelated;
  border-radius: 10px; border: 1px solid var(--line); background: var(--surface-2);
  display: block;
}
.preview figcaption { font-family: var(--mono); font-size: .68rem; color: var(--ink-2);
                      margin-top: .45rem; max-width: 160px; line-height: 1.4; }

/* ---------- hero result cards ---------- */
.empty { color: var(--ink-2); font-size: .9rem;
         background: var(--surface-2); border-radius: 12px; padding: 1.5rem; }

.hero {
  display: flex; align-items: flex-end; justify-content: space-between;
  gap: 1.4rem; flex-wrap: wrap;
  padding: 1.4rem 1.5rem; border-radius: 12px; background: var(--surface-2);
}
.hero.go { background: var(--accent-soft); }
.hero.alert { background: var(--danger-soft); }
.hero.uncertain { background: var(--surface-2); }
.hero-left { display: flex; flex-direction: column; gap: .35rem; min-width: 0; }
.hero-eyebrow { font-family: var(--mono); font-size: .68rem; letter-spacing: .12em; color: var(--ink-2); }
.hero.alert .hero-eyebrow { color: var(--danger); }
.hero.uncertain .hero-eyebrow { color: var(--warn); }
.hero.go .hero-eyebrow { color: var(--accent); }
.hero-title { font-size: 1.9rem; font-weight: 600; letter-spacing: -.02em; line-height: 1.12; }
.hero-sub { font-family: var(--serif); font-style: italic; font-size: .95rem; color: var(--ink-2); }
.hero-right { display: flex; flex-direction: column; align-items: flex-end; gap: .1rem; }
.hero-num { font-family: var(--mono); font-size: 2.2rem; font-weight: 500;
            letter-spacing: -.02em; font-variant-numeric: tabular-nums; line-height: 1.05; }
.hero-num .unit { font-size: 1.1rem; }
.hero.alert .hero-num { color: var(--danger); }
.hero.go .hero-num { color: var(--accent); }
.hero.uncertain .hero-num { color: var(--warn); }
.hero-num.sm { font-size: 1.25rem; white-space: nowrap; }
.hero-numlabel { font-size: .78rem; color: var(--ink-2); }

.tag {
  font-family: var(--mono); font-size: .67rem; padding: .25rem .55rem;
  border-radius: 999px; background: var(--surface-2); color: var(--ink-2); white-space: nowrap;
}
.tag.high { background: var(--danger-soft); color: var(--danger); }
.tag.medium { background: var(--warn-soft); color: var(--warn); }
.tag.none { background: var(--accent-soft); color: var(--accent); }
.tag.unknown { background: var(--surface-2); color: var(--ink-2); }

/* ---------- probability bars ---------- */
.bars { display: grid; gap: .8rem; margin: 1.2rem 0 0; }
.bar { display: grid; grid-template-columns: 1fr auto; gap: .4rem .8rem; align-items: baseline; font-size: .87rem; }
.bar .track { grid-column: 1 / -1; height: 8px; border-radius: 999px; background: var(--surface-2); overflow: hidden; }
.bar .fill { height: 100%; background: var(--accent); border-radius: 999px; }
.bar.rest .fill { background: color-mix(in srgb, var(--accent) 45%, var(--surface-2)); }
.bar.rest span:first-child { color: var(--ink-2); }
.bar .pct { font-family: var(--mono); font-variant-numeric: tabular-nums; font-size: .8rem; }
.bar.rest .pct { color: var(--ink-2); }

.kv { display: grid; grid-template-columns: auto 1fr; gap: .55rem 1.6rem; font-size: .86rem; margin: 1.1rem 0 0; }
.kv dt { color: var(--ink-2); }
.kv dd { margin: 0; font-family: var(--mono); font-size: .82rem; font-variant-numeric: tabular-nums; }
.kv dd.plain { font-family: var(--sans); font-size: .86rem; }

.note { border-radius: 10px; padding: .8rem 1rem; font-size: .85rem; line-height: 1.55; margin: 1rem 0 0; }
.note.warn { background: var(--warn-soft); color: var(--warn); }
.note.info { background: var(--surface-2); color: var(--ink-2); }
.note .btn { margin-top: .6rem; }

/* ---------- FAO-56 gauge ---------- */
.gauge { height: 16px; border-radius: 999px; background: var(--surface-2);
         position: relative; margin: 1.4rem 0 0; }
.gauge .fill { position: absolute; left: 0; top: 0; bottom: 0;
               background: linear-gradient(90deg, var(--accent), var(--warn)); border-radius: 999px; }
.gauge .mark { position: absolute; top: -6px; bottom: -6px; width: 2px; background: var(--danger); }
.gauge .mark.soft { top: -2px; bottom: -2px; width: 1px; background: var(--ink-2); opacity: .5; }
.ticks { position: relative; height: 34px; margin-top: .5rem;
         font-family: var(--mono); font-size: .68rem; color: var(--ink-2); }
.ticks .tick { position: absolute; top: 0; white-space: nowrap; text-align: center; transform: translateX(-50%); }
.ticks .tick.first { left: 0; transform: none; text-align: left; }
.ticks .tick.last { right: 0; left: auto; transform: none; text-align: right; }
.ticks .tick.trigger { color: var(--danger); }

/* ---------- details / feature table ---------- */
details { margin-top: 1rem; border-top: 1px solid var(--line); }
summary {
  cursor: pointer; font-size: .87rem; color: var(--ink); font-weight: 500;
  padding: .85rem .1rem; list-style: none;
  display: flex; align-items: center; gap: .7rem;
}
summary::-webkit-details-marker { display: none; }
summary::before { content: '+'; font-family: var(--mono); color: var(--ink-2); }
details[open] > summary::before { content: '−'; }
summary:hover { color: var(--accent); }

.feattable {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(190px, 1fr));
  gap: .1rem 1.4rem; font-size: .74rem; margin: 0 0 .9rem;
  max-height: 300px; overflow: auto;
}
.feattable div { display: flex; justify-content: space-between; gap: .5rem;
                 border-bottom: 1px dotted var(--line); padding: .2rem 0; }
.feattable span { font-family: var(--mono); }
.feattable span:first-child { color: var(--ink-2); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.feattable span:last-child { font-variant-numeric: tabular-nums; flex: none; }

.timing { font-family: var(--mono); font-size: .72rem; color: var(--ink-2); margin: 1rem 0 0; }

/* ---------- advisory ---------- */
.advhero {
  display: grid; grid-template-columns: 1fr; gap: 1.6rem; align-items: center;
}
@media (min-width: 940px) { .advhero { grid-template-columns: 1fr auto; } }
.advhero .eyebrow { font-family: var(--mono); font-size: .68rem; letter-spacing: .14em; color: var(--ink-2); }
.advhero .headline { font-size: 2.7rem; font-weight: 600; letter-spacing: -.03em; line-height: 1.05; margin: .5rem 0; }
.advhero .subline { display: flex; align-items: center; gap: .6rem; flex-wrap: wrap; font-size: .95rem; }
.advhero .subline .agent { font-family: var(--serif); font-style: italic; color: var(--ink-2); }

.eyebrow { font-family: var(--mono); font-size: .66rem; letter-spacing: .12em; color: var(--ink-2); }

.stattiles { display: flex; gap: .75rem; flex-wrap: wrap; }
.stattile { background: var(--surface-2); border-radius: 12px; padding: 1rem 1.2rem;
            display: flex; flex-direction: column; gap: .2rem; min-width: 150px; }
.stattile-label { font-family: var(--mono); font-size: .63rem; letter-spacing: .1em; color: var(--ink-2); }
.stattile-num { font-family: var(--mono); font-size: 1.4rem; font-variant-numeric: tabular-nums; }
.stattile-sub { font-size: .74rem; color: var(--ink-2); line-height: 1.4; }

.advgrid { display: grid; gap: 1.2rem; grid-template-columns: 1fr; align-items: start; margin-top: 1.2rem; }
@media (min-width: 1040px) { .advgrid { grid-template-columns: 1fr 380px; } }

.detailrows { display: grid; grid-template-columns: 1fr; gap: 0; }
@media (min-width: 700px) { .detailrows { grid-template-columns: 170px 1fr; column-gap: 2rem; } }
.detailrows .dlabel { font-family: var(--mono); font-size: .7rem; letter-spacing: .08em;
                      color: var(--ink-2); padding: 1.1rem 0 .2rem; }
.detailrows .dvalue { font-size: .97rem; line-height: 1.55; padding: 0 0 1.1rem; max-width: 62ch; }
@media (min-width: 700px) {
  .detailrows .dlabel { padding: 1.1rem 0; }
  .detailrows .dvalue { padding: 1.1rem 0; }
  .detailrows .dlabel:not(:first-child), .detailrows .dvalue:not(:nth-child(2)) { border-top: 1px solid var(--line); }
}
.detailrows .dvalue .agent { font-family: var(--serif); font-style: italic; }

.sidecol { display: flex; flex-direction: column; gap: 1.2rem; }
.sidecol .card + .card { margin-top: 0; }

.sidebox { background: var(--surface-2); border-radius: var(--radius); padding: 1.3rem;
           display: flex; flex-direction: column; gap: .7rem; }
.sidebox .eyebrow { font-family: var(--mono); font-size: .66rem; letter-spacing: .12em; color: var(--ink-2); }
.sidebox p { margin: 0; font-size: .92rem; line-height: 1.6; }

.touchrows { display: flex; flex-direction: column; gap: .8rem; }
.touchrow { display: grid; grid-template-columns: 80px 1fr; gap: .8rem; align-items: baseline;
            font-size: .86rem; line-height: 1.5; }
.touchrow + .touchrow { border-top: 1px solid var(--line); padding-top: .8rem; }
.touchkey { font-size: .76rem; font-weight: 600; color: var(--ink-2); letter-spacing: .04em; }
.touchrow.changed .touchkey { color: var(--accent); }
.touchrow.changed span:last-child { color: var(--ink); }

/* ---------- history ---------- */
.histtable { border: 1px solid var(--line); border-radius: 12px; overflow: hidden; }
.histhead, .histrow {
  display: grid; gap: 1rem; padding: .9rem 1.1rem; align-items: center;
  grid-template-columns: 150px 1fr 90px 1fr 40px;
}
.histhead { background: var(--surface-2); font-family: var(--mono);
            font-size: .63rem; letter-spacing: .1em; color: var(--ink-2); }
.histrow { border-top: 1px solid var(--line); font-size: .87rem; }
.histrow .when { font-family: var(--mono); font-size: .76rem; color: var(--ink-2); white-space: nowrap; }
.histrow .cls { display: flex; flex-direction: column; gap: .15rem; }
.histrow .cls .agent { font-family: var(--serif); font-style: italic; font-size: .78rem; color: var(--ink-2); }
.histrow .conf { display: flex; flex-direction: column; gap: .3rem; align-items: flex-end; }
.histrow .conf span { font-family: var(--mono); font-size: .8rem; font-variant-numeric: tabular-nums; }
.histrow .conf .track { width: 64px; height: 4px; border-radius: 999px; background: var(--surface-2); overflow: hidden; }
.histrow .conf .fill { height: 100%; background: var(--accent); border-radius: 999px; }
.histrow .decision { color: var(--ink-2); font-size: .82rem; line-height: 1.4; }
.delbtn {
  font-family: var(--mono); font-size: .95rem; color: var(--ink-2);
  width: 32px; height: 32px; border-radius: 8px; border: 1px solid var(--line);
  background: none; cursor: pointer; justify-self: end;
}
.delbtn:hover { color: var(--danger); background: var(--danger-soft); }
@media (max-width: 820px) {
  .histhead { display: none; }
  .histrow { grid-template-columns: 1fr 40px; row-gap: .5rem; }
  .histrow .conf { align-items: flex-start; }
}

.emptystate {
  background: var(--surface-2); border-radius: 12px; padding: 2.8rem 2rem;
  display: flex; flex-direction: column; align-items: center; gap: .7rem; text-align: center;
}
.emptystate .box { width: 44px; height: 44px; border-radius: 12px; border: 1.5px dashed var(--line); }
.emptystate .title { font-size: 1rem; font-weight: 500; }
.emptystate p { color: var(--ink-2); font-size: .87rem; max-width: 44ch; margin: 0; }

ul { padding-left: 1.1rem; }
li { margin: .3rem 0; }

footer { text-align: center; padding: 2rem 1rem 3rem; font-size: .74rem; color: var(--ink-2); }

@media (max-width: 600px) {
  h1 { font-size: 2rem; }
  .topbar { padding: .8rem 1rem; }
  .tabs { padding: 0 1rem; }
  main { padding: 1.1rem 1rem; }
  .card { padding: 1.1rem; }
  .hero-title { font-size: 1.5rem; }
  .advhero .headline { font-size: 2rem; }
}