/* ChemCalc — visual identity
   Grounded in the actual object this app replaces: the printed label on a
   drum of fertiliser/herbicide, and the ruled scale on a measuring jug.
   Palette: turf green + soil clay + spray-marker ochre. No cream/terracotta,
   no dark-mode neon — this gets used in daylight, on a phone, on a lawn. */

@import url('https://fonts.googleapis.com/css2?family=Big+Shoulders+Display:wght@600;700;800&family=Inter:wght@400;500;600;700&family=IBM+Plex+Mono:wght@500;600&display=swap');

:root {
  --paper: #F4F6EF;
  --paper-raised: #FFFFFF;
  --ink: #1B2B20;
  --ink-soft: #4B5A4E;
  --turf: #2F6B3C;
  --turf-deep: #1F4C29;
  --clay: #A85A2A;
  --caution: #E0A03A;
  --caution-deep: #B87D22;
  --line: #CBD3C1;
  --danger: #B23A2E;

  --radius: 10px;
  --shadow: 0 1px 2px rgba(27, 43, 32, 0.08), 0 4px 14px rgba(27, 43, 32, 0.06);
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: 'Inter', system-ui, sans-serif;
  -webkit-tap-highlight-color: transparent;
}

body {
  padding-bottom: env(safe-area-inset-bottom, 0);
}

h1, h2, h3, .display {
  font-family: 'Big Shoulders Display', sans-serif;
  font-weight: 800;
  letter-spacing: 0.01em;
  text-transform: uppercase;
  color: var(--ink);
  margin: 0;
}

.mono {
  font-family: 'IBM Plex Mono', monospace;
}

button { font-family: inherit; }

a { color: var(--turf-deep); }

/* ---------- Layout shell ---------- */

.app-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: var(--turf);
  color: #fff;
  padding: 14px 16px 0;
  box-shadow: var(--shadow);
}

.app-header .brand {
  display: flex;
  align-items: baseline;
  gap: 8px;
  padding-bottom: 10px;
}

.app-header .brand h1 {
  font-size: 26px;
  color: #fff;
}

.app-header .brand span {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: rgba(255,255,255,0.75);
}

.tabs {
  display: flex;
  gap: 2px;
}

.tab {
  flex: 1;
  background: rgba(255,255,255,0.08);
  border: none;
  color: rgba(255,255,255,0.75);
  font-family: 'Big Shoulders Display', sans-serif;
  font-weight: 700;
  font-size: 14px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  padding: 10px 0;
  border-radius: 6px 6px 0 0;
  cursor: pointer;
}

.tab.active {
  background: var(--paper);
  color: var(--turf-deep);
}

main {
  max-width: 640px;
  margin: 0 auto;
  padding: 16px 16px 96px;
}

.view { display: none; }
.view.active { display: block; }

/* ---------- Cards / generic ---------- */

.card {
  background: var(--paper-raised);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 16px;
  margin-bottom: 14px;
}

.field-label {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--ink-soft);
  margin-bottom: 6px;
  display: block;
}

input[type="text"], input[type="number"], input[type="url"], select, textarea {
  width: 100%;
  font-family: 'Inter', sans-serif;
  font-size: 16px;
  padding: 10px 12px;
  border: 1.5px solid var(--line);
  border-radius: 8px;
  background: #fff;
  color: var(--ink);
}

input:focus, select:focus, textarea:focus, button:focus-visible {
  outline: 2px solid var(--turf);
  outline-offset: 1px;
}

textarea { resize: vertical; min-height: 64px; }

.btn {
  font-family: 'Big Shoulders Display', sans-serif;
  font-weight: 700;
  font-size: 15px;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  border: none;
  border-radius: 8px;
  padding: 12px 18px;
  cursor: pointer;
  min-height: 44px;
}

.btn-primary { background: var(--turf); color: #fff; }
.btn-primary:active { background: var(--turf-deep); }
.btn-secondary { background: transparent; color: var(--turf-deep); border: 1.5px solid var(--turf); }
.btn-danger { background: transparent; color: var(--danger); border: 1.5px solid var(--danger); }
.btn-full { width: 100%; }
.btn-ghost { background: transparent; color: var(--ink-soft); border: 1.5px dashed var(--line); }

/* ---------- Product picker (Calculator view) ---------- */

.chip-row {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 4px;
  margin-bottom: 12px;
}

.chip {
  flex: none;
  background: #fff;
  border: 1.5px solid var(--line);
  color: var(--ink-soft);
  border-radius: 999px;
  padding: 7px 14px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  white-space: nowrap;
}

.chip.active {
  background: var(--turf);
  border-color: var(--turf);
  color: #fff;
}

.product-list { display: flex; flex-direction: column; gap: 6px; }

.product-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: #fff;
  border: 1.5px solid var(--line);
  border-radius: 8px;
  padding: 12px 14px;
  cursor: pointer;
  gap: 10px;
}

.product-row.selected { border-color: var(--turf); background: #EEF5EC; }

.product-row .name { font-weight: 600; font-size: 15px; }
.product-row .meta { font-size: 12px; color: var(--ink-soft); margin-top: 2px; }

.row-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
}

.label-btn {
  flex-shrink: 0;
  width: 34px;
  height: 34px;
  border-radius: 8px;
  border: 1.5px solid var(--line);
  background: #fff;
  color: var(--turf-deep);
  font-family: 'Big Shoulders Display', sans-serif;
  font-weight: 700;
  font-size: 15px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
}

.label-btn:active { background: #EEF5EC; }

#view-body .row { margin-top: 12px; font-size: 13.5px; line-height: 1.5; }
#view-body .row:first-child { margin-top: 0; }
#view-body .row .k {
  font-size: 10.5px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--ink-soft);
  display: block;
  margin-bottom: 2px;
}
#view-body .view-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 4px;
}
#view-body .view-sub { font-size: 12.5px; color: var(--ink-soft); margin-bottom: 14px; }
#view-body .rate-pill {
  display: inline-block;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 12.5px;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 6px 10px;
  margin-bottom: 4px;
}

.badge {
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 3px 7px;
  border-radius: 4px;
  flex-shrink: 0;
}

.badge-liquid { background: #DCE9F5; color: #1F5A8C; }
.badge-granular { background: #EFE3D0; color: var(--clay); }

/* ---------- Dose / label card — the signature element ---------- */

.label-card {
  background: var(--paper-raised);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  border: 1.5px dashed var(--line);
  padding: 18px;
  margin-bottom: 14px;
  position: relative;
  overflow: hidden;
}

.label-card::before {
  content: "";
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 6px;
  background: repeating-linear-gradient(45deg, var(--caution), var(--caution) 6px, var(--ink) 6px, var(--ink) 12px);
}

.label-card .lc-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  padding-left: 10px;
  margin-bottom: 4px;
}

.label-card .lc-head h2 { font-size: 20px; line-height: 1.05; }
.label-card .lc-sub { font-size: 12px; color: var(--ink-soft); padding-left: 10px; margin-bottom: 14px; }

.ruler {
  padding-left: 10px;
  margin: 14px 0 6px;
}

.rate-slider {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 6px;
  border-radius: 999px;
  margin: 18px 0 8px;
  background: var(--line); /* overridden inline per-value via JS gradient */
  outline-offset: 4px;
}

.rate-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 24px; height: 24px;
  background: var(--ink);
  border: 3px solid var(--paper-raised);
  border-radius: 50%;
  box-shadow: 0 1px 3px rgba(0,0,0,0.3);
  cursor: grab;
  margin-top: 0;
}

.rate-slider::-moz-range-thumb {
  width: 24px; height: 24px;
  background: var(--ink);
  border: 3px solid var(--paper-raised);
  border-radius: 50%;
  box-shadow: 0 1px 3px rgba(0,0,0,0.3);
  cursor: grab;
}

.rate-slider::-moz-range-track {
  height: 6px;
  border-radius: 999px;
  background: var(--line);
}

.ruler-labels {
  display: flex;
  justify-content: space-between;
  font-size: 11px;
  color: var(--ink-soft);
  padding-left: 10px;
}

.dose-presets {
  display: flex;
  gap: 6px;
  padding-left: 10px;
  margin: 10px 0 4px;
}

.dose-presets .chip { flex: 1; text-align: center; }

.rate-fixed-note {
  padding-left: 10px;
  font-size: 12px;
  color: var(--ink-soft);
  margin: 10px 0;
}

.area-row {
  display: flex;
  gap: 10px;
  align-items: flex-end;
  padding-left: 10px;
  margin: 14px 0;
}

.area-row .field { flex: 1; }

.total-readout {
  margin-left: 10px;
  margin-top: 8px;
  background: var(--ink);
  color: #fff;
  border-radius: 8px;
  padding: 14px 16px;
  display: flex;
  justify-content: space-between;
  align-items: baseline;
}

.total-readout .num {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 30px;
  font-weight: 600;
}

.total-readout .unit-label {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: rgba(255,255,255,0.65);
}

.rate-readout {
  margin-left: 10px;
  font-size: 12px;
  color: var(--ink-soft);
  margin-top: -2px;
}

.rate-readout .mono { color: var(--caution-deep); font-weight: 600; }

details.label-details {
  margin: 14px 0 0 10px;
  border-top: 1px solid var(--line);
  padding-top: 10px;
}

details.label-details summary {
  cursor: pointer;
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--turf-deep);
}

.label-details .row { margin-top: 10px; font-size: 13.5px; line-height: 1.5; }
.label-details .row .k {
  font-size: 10.5px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--ink-soft);
  display: block;
  margin-bottom: 2px;
}

.empty-state {
  text-align: center;
  padding: 40px 20px;
  color: var(--ink-soft);
  font-size: 14px;
}

/* ---------- Products / manage view ---------- */

.products-toolbar {
  display: flex;
  gap: 8px;
  margin-bottom: 12px;
}

.products-toolbar input { flex: 1; }

.product-manage-row {
  background: #fff;
  border: 1.5px solid var(--line);
  border-radius: 8px;
  padding: 12px 14px;
  margin-bottom: 8px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 10px;
  cursor: pointer;
}

.product-manage-row .rate {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 12px;
  color: var(--ink-soft);
  white-space: nowrap;
}

/* ---------- Modal / add-edit form ---------- */

.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(27, 43, 32, 0.5);
  z-index: 100;
  display: none;
  align-items: flex-end;
  justify-content: center;
}

.modal-backdrop.active { display: flex; }

.modal {
  background: var(--paper);
  width: 100%;
  max-width: 640px;
  max-height: 92vh;
  overflow-y: auto;
  border-radius: 16px 16px 0 0;
  padding: 18px 16px calc(24px + env(safe-area-inset-bottom, 0));
}

.modal-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 14px;
}

.modal-head h2 { font-size: 20px; }

.close-x {
  background: none;
  border: none;
  font-size: 22px;
  color: var(--ink-soft);
  cursor: pointer;
  line-height: 1;
  padding: 4px 8px;
}

.extract-row {
  display: flex;
  gap: 8px;
  margin-bottom: 4px;
}

.extract-row input { flex: 1; }

.extract-status {
  font-size: 12.5px;
  margin: 8px 0 0;
  min-height: 16px;
}

.extract-status.ok { color: var(--turf-deep); }
.extract-status.err { color: var(--danger); }
.extract-status.busy { color: var(--ink-soft); }

.form-divider {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 16px 0;
  color: var(--ink-soft);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.form-divider::before, .form-divider::after {
  content: "";
  flex: 1;
  height: 1px;
  background: var(--line);
}

.form-grid { display: flex; flex-direction: column; gap: 12px; }
.form-row-2 { display: flex; gap: 10px; }
.form-row-2 .field { flex: 1; }
.field { margin: 0; }

.type-toggle { display: flex; gap: 8px; }
.type-toggle .chip { flex: 1; text-align: center; }

.modal-actions {
  display: flex;
  gap: 10px;
  margin-top: 18px;
}

.modal-actions .btn { flex: 1; }

/* ---------- Home Calc ---------- */

.home-area-card {
  border-left: 6px solid var(--turf);
}

.home-area-card:nth-of-type(2) { border-left-color: var(--clay); }
.home-area-card:nth-of-type(3) { border-left-color: var(--caution-deep); }

.home-area-head {
  font-family: 'Big Shoulders Display', sans-serif;
  font-weight: 700;
  font-size: 16px;
  text-transform: uppercase;
  letter-spacing: 0.02em;
  margin-bottom: 10px;
}

.home-area-card .total-readout { margin-top: 12px; }

@media (max-width: 400px) {
  .total-readout .num { font-size: 26px; }
}