/* FAO56-Studio: a thin layer on Bootstrap 5.3. Colours are tokens so a theme change is one edit. */

:root {
  --fs-primary: #0e7490;
  --fs-primary-rgb: 14, 116, 144;
  --fs-primary-dark: #155e75;
  --fs-primary-darker: #164e63;
  --fs-accent: #15803d;
  --fs-ink: #0f172a;
  --fs-muted: #64748b;
  --fs-surface: #ffffff;
  --fs-bg: #f3f6f8;
  --fs-border: #e2e8f0;
  --fs-review: #f59e0b;
  --fs-nav: #0f2a33;

  --bs-body-bg: var(--fs-bg);
  --bs-body-color: var(--fs-ink);
  --bs-body-font-family: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --bs-primary: var(--fs-primary);
  --bs-primary-rgb: var(--fs-primary-rgb);
  --bs-link-color-rgb: var(--fs-primary-rgb);
  --bs-link-hover-color-rgb: 21, 94, 117;
  --bs-border-color: var(--fs-border);
}

/* ---------- Buttons and form focus in the theme colour ---------- */
.btn-primary {
  --bs-btn-bg: var(--fs-primary);
  --bs-btn-border-color: var(--fs-primary);
  --bs-btn-hover-bg: var(--fs-primary-dark);
  --bs-btn-hover-border-color: var(--fs-primary-dark);
  --bs-btn-active-bg: var(--fs-primary-darker);
  --bs-btn-active-border-color: var(--fs-primary-darker);
  --bs-btn-disabled-bg: var(--fs-primary);
  --bs-btn-disabled-border-color: var(--fs-primary);
  --bs-btn-focus-shadow-rgb: var(--fs-primary-rgb);
}
.btn-outline-primary {
  --bs-btn-color: var(--fs-primary);
  --bs-btn-border-color: var(--fs-primary);
  --bs-btn-hover-color: #fff;
  --bs-btn-hover-bg: var(--fs-primary);
  --bs-btn-hover-border-color: var(--fs-primary);
  --bs-btn-active-color: #fff;
  --bs-btn-active-bg: var(--fs-primary);
  --bs-btn-active-border-color: var(--fs-primary);
  --bs-btn-focus-shadow-rgb: var(--fs-primary-rgb);
}
.form-control:focus,
.form-select:focus {
  border-color: rgba(var(--fs-primary-rgb), 0.6);
  box-shadow: 0 0 0 0.2rem rgba(var(--fs-primary-rgb), 0.18);
}
.text-primary { color: var(--fs-primary) !important; }

/* Keep the footer at the bottom of short pages */
body { min-height: 100vh; display: flex; flex-direction: column; }
body > main { flex: 1 0 auto; }

.skip-link {
  position: absolute; left: 1rem; top: 0.5rem; z-index: 2000;
  background: var(--fs-surface); padding: 0.5rem 0.75rem; border-radius: 0.375rem;
}

/* ---------- Site navigation and app header ---------- */
.site-nav { background: var(--fs-nav); }
.app-header { background: var(--fs-surface); border-bottom: 1px solid var(--fs-border); }
.app-brand {
  display: flex; align-items: center; gap: 0.6rem;
  color: var(--fs-ink); text-decoration: none;
}
.app-brand > i { font-size: 1.9rem; color: var(--fs-primary); }
.app-brand strong { display: block; font-size: 1.2rem; line-height: 1.1; }
.app-brand small { display: block; color: var(--fs-muted); font-size: 0.8rem; }

/* ---------- Stepper ---------- */
.stepper-wrap { border-top: 1px solid var(--fs-border); overflow-x: auto; }
.stepper {
  display: flex; list-style: none; margin: 0 auto; padding: 0.8rem 0.75rem 0.7rem;
  max-width: 1320px;
}
.stepper-item { flex: 1 1 0; min-width: 5.5rem; position: relative; }
.stepper-item + .stepper-item::before {
  content: ""; position: absolute; top: 1.05rem; height: 2px;
  left: calc(-50% + 1.35rem); right: calc(50% + 1.35rem);
  background: var(--fs-border);
}
.stepper-item.is-done + .stepper-item::before { background: var(--fs-accent); }
.stepper-link {
  display: flex; flex-direction: column; align-items: center; gap: 0.35rem;
  color: var(--fs-muted); text-decoration: none; position: relative;
}
.stepper-dot {
  width: 2.1rem; height: 2.1rem; border-radius: 50%;
  display: grid; place-items: center; font-weight: 600; font-size: 0.9rem;
  background: var(--fs-surface); border: 2px solid var(--fs-border); color: var(--fs-muted);
  transition: border-color 0.15s, box-shadow 0.15s;
}
.stepper-label { font-size: 0.8rem; text-align: center; line-height: 1.2; }
.is-done .stepper-dot { background: var(--fs-accent); border-color: var(--fs-accent); color: #fff; }
.is-done .stepper-label { color: var(--fs-ink); }
.is-review .stepper-dot { background: #fef3c7; border-color: var(--fs-review); color: #92400e; }
.is-review .stepper-label { color: #92400e; }
.is-current .stepper-dot { box-shadow: 0 0 0 4px rgba(var(--fs-primary-rgb), 0.18); border-color: var(--fs-primary); }
.is-current .stepper-label { color: var(--fs-primary); font-weight: 600; }
.is-locked .stepper-link { cursor: not-allowed; opacity: 0.55; }
a.stepper-link:hover .stepper-dot { border-color: var(--fs-primary); }
a.stepper-link:focus-visible { outline: 2px solid var(--fs-primary); outline-offset: 4px; border-radius: 0.5rem; }
@media (max-width: 575.98px) {
  .stepper-label { font-size: 0.7rem; }
  .stepper-item { min-width: 4rem; }
}

/* ---------- Cards and step pages ---------- */
.card { border-color: var(--fs-border); border-radius: 0.75rem; }
.step-card { box-shadow: 0 1px 2px rgba(15, 23, 42, 0.05); }
.step-card .card-footer { background: #f8fafc; border-top-color: var(--fs-border); }
.step-intro .step-icon {
  width: 2.4rem; height: 2.4rem; border-radius: 0.6rem; display: grid; place-items: center;
  background: rgba(var(--fs-primary-rgb), 0.1); color: var(--fs-primary); font-size: 1.25rem;
}
.step-lead { color: #334155; max-width: 60rem; }
.error-card { max-width: 34rem; }

/* ---------- Parameter fields ---------- */
.param-field .form-label { font-weight: 600; font-size: 0.92rem; }
.param-symbol { font-weight: 400; color: var(--fs-muted); }
.info-btn { color: var(--fs-primary); line-height: 1; cursor: help; }
.info-btn:focus-visible { outline: 2px solid var(--fs-primary); outline-offset: 2px; border-radius: 50%; }
.form-control.is-warning { border-color: var(--fs-review); }
.field-warning { color: #92400e; }
.popover { --bs-popover-max-width: 22rem; font-size: 0.85rem; }

.badge-catalog { background: #e0f2fe; color: #075985; }
.badge-ssurgo { background: #ede9fe; color: #5b21b6; }
.badge-default { background: #f1f5f9; color: #475569; }
.badge-edited { background: #fef9c3; color: #854d0e; }
.badge-missing { background: #fee2e2; color: #991b1b; }

/* ---------- Location map ---------- */
.site-map { height: 380px; border-radius: 0.6rem; border: 1px solid var(--fs-border); z-index: 0; }
@media (max-width: 575.98px) { .site-map { height: 300px; } }
.coverage .badge { font-weight: 500; }

/* ---------- Crop & Season ---------- */
.step-card > .card-header { background: #f8fafc; }
.step-card > .card-header h2 { display: flex; align-items: center; gap: 0.45rem; }
.crop-status .badge { font-weight: 500; margin: 0 0.25rem 0.25rem 0; }
.form-select.needs-choice:not(.is-invalid) { border-color: var(--fs-primary); box-shadow: 0 0 0 0.2rem rgba(var(--fs-primary-rgb), 0.18); }

/* ---------- Weather ---------- */
.issue-list { padding-left: 1.1rem; }
.issue-list li + li { margin-top: 0.15rem; }
.columns-help summary { cursor: pointer; color: var(--fs-primary); }
.preview-facts { display: grid; grid-template-columns: max-content 1fr; gap: 0.25rem 1rem; margin-bottom: 0.75rem; }
.preview-facts dt { font-weight: 600; color: var(--fs-muted); font-size: 0.9rem; }
.preview-facts dd { margin: 0; }
.stage-table { max-width: 32rem; }
.preview-chart { height: 440px; width: 100%; }
@media (max-width: 575.98px) { .preview-chart { height: 380px; } }
.adjustment-box { border-top: 1px solid var(--fs-border); padding-top: 0.75rem; }

/* ---------- Soil ---------- */
.layer-table input { min-width: 5.5rem; }
.layer-table td { vertical-align: top; }
.layer-table .layer-number { color: var(--fs-muted); padding-top: 0.45rem; width: 2rem; }
.layer-table .prov { min-height: 1.2rem; margin-top: 0.15rem; }
.event-table input { min-width: 5.5rem; }
.event-table input[type="date"] { min-width: 9.5rem; }
.event-table .row-number { color: var(--fs-muted); padding-top: 0.45rem; width: 2rem; }
.events-import > summary, .advanced-options > summary { cursor: pointer; color: var(--fs-primary); }

/* Results */
.facts { padding-left: 1.1rem; }
.facts li { margin-bottom: 0.3rem; }
.result-card { border: 1px solid var(--bs-border-color); border-radius: 0.5rem; padding: 0.55rem 0.7rem; background: var(--bs-body-bg); }
.result-label { font-size: 0.78rem; color: var(--fs-muted); line-height: 1.2; }
.result-value { font-size: 1.25rem; font-weight: 600; line-height: 1.3; }
.result-detail { font-size: 0.78rem; color: var(--fs-muted); }
.results-tabs .nav-link { font-size: 0.92rem; }
.results-chart { width: 100%; height: 560px; }
.results-chart.chart-tall { height: 700px; }
.results-chart.chart-short { height: 380px; }
@media (max-width: 575.98px) {
  .results-chart { height: 480px; }
  .results-chart.chart-tall { height: 620px; }
}
.budget-table td, .budget-table th { padding-top: 0.2rem; padding-bottom: 0.2rem; }
.soil-profile { max-height: 520px; }
.data-table-wrap { max-height: 520px; overflow: auto; }
.data-table thead th { position: sticky; top: 0; background: var(--bs-body-bg); z-index: 1; white-space: nowrap; }
.data-table .unit { font-weight: 400; font-size: 0.72rem; color: var(--fs-muted); }
.scenario-load { max-width: 34rem; }
details.step-card > summary { cursor: pointer; list-style: none; }
details.step-card > summary::-webkit-details-marker { display: none; }
details.step-card > summary::before { content: "\25B8"; display: inline-block; margin-right: 0.4rem; transition: transform 0.15s; }
details.step-card[open] > summary::before { transform: rotate(90deg); }
.param-field fieldset, fieldset.param-field { border: 0; padding: 0; margin: 0; }
.param-field legend { font-size: 0.92rem; font-weight: 600; }
.prov .badge { font-weight: 500; }

/* ---------- Learn more panel ---------- */
.learn-panel { --bs-offcanvas-width: min(32rem, 100vw); }
.learn-params dt { margin-top: 1rem; }
.learn-params dd { margin-bottom: 0; color: #334155; }
.learn-params .effect { margin-top: 0.35rem; color: var(--fs-ink); }
.learn-params .source { margin-top: 0.35rem; font-size: 0.8rem; color: var(--fs-muted); }

/* ---------- Run summary ---------- */
.summary-card { position: sticky; top: 1rem; }
.summary-card .card-header { background: #f8fafc; font-weight: 600; }
.summary-rows { display: grid; grid-template-columns: auto 1fr; gap: 0.15rem 0.75rem; font-size: 0.85rem; }
.summary-rows dt { font-weight: 400; color: var(--fs-muted); }
.summary-rows dd { margin: 0; text-align: right; font-variant-numeric: tabular-nums; }
.badge-done { background: #dcfce7; color: #166534; }
.badge-review { background: #fef3c7; color: #92400e; text-decoration: none; }
.badge-todo { background: #f1f5f9; color: var(--fs-muted); }

/* ---------- Home ---------- */
.hero { background: linear-gradient(135deg, #ecfeff 0%, #f0fdf4 100%); }
.equation-card { background: var(--fs-surface); border: 1px solid var(--fs-border); border-radius: 0.75rem; padding: 1.25rem; }
.equation-caption { font-size: 0.75rem; letter-spacing: 0.04em; text-transform: uppercase; color: var(--fs-muted); }
.equation { font-family: "Cambria Math", "STIX Two Math", Georgia, serif; font-size: 1.1rem; }
.step-number {
  width: 1.6rem; height: 1.6rem; border-radius: 50%; display: grid; place-items: center;
  background: rgba(var(--fs-primary-rgb), 0.12); color: var(--fs-primary); font-weight: 600; font-size: 0.8rem;
}
.step-tile { transition: box-shadow 0.15s; }
.step-tile:hover { box-shadow: 0 4px 14px rgba(15, 23, 42, 0.08); }

/* ---------- Footer ---------- */
.site-footer { background: var(--fs-nav); color: #cbd5e1; margin-top: 2rem; }
.site-footer a { color: #e2e8f0; }