/* ============================================================================
   FoodProTec sheet system — the one stylesheet for hub, spokes, and calculators.
   Spec: content/design-notes/visual-direction.md (GPT v1, 2026-09-05), approved by Eugene 2026-09-05:
   white sheet on grey ground, Hanken Grotesk + Inter, ruled rows/tables/sequences instead of cards,
   one red accent for actions, no icons, one red band per page. No Tailwind.
   ============================================================================ */

:root {
  --ground: #E8E8E5; --sheet: #FFFFFF; --ink: #1C1B1B; --ink-2: #5E5956; --ink-3: #8A8580;
  --hair: #D6D3D0; --rule: #77716D; --red: #A8332A; --red-ink: #862821;
  --sans: Inter, Arial, sans-serif; --disp: "Hanken Grotesk", "Arial Narrow", Arial, sans-serif;
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  --pad: 32px; --sheet-max: 1180px;
}
* { box-sizing: border-box; }
html { color-scheme: light; scroll-behavior: smooth; scroll-padding-top: 80px; }
body { margin: 0; background: var(--ground); color: var(--ink); font: 17px/1.55 var(--sans); -webkit-font-smoothing: antialiased; }
h1, h2, h3, h4 { margin: 0; font-family: var(--disp); font-weight: 700; letter-spacing: -0.015em; text-wrap: balance; }
h1 { font-size: 56px; line-height: 1.02; letter-spacing: -0.025em; }
h2 { font-size: 36px; line-height: 1.12; }
h3 { font-family: var(--sans); font-weight: 600; font-size: 17px; line-height: 1.35; letter-spacing: 0; }
p { margin: 0; }
ul, ol { margin: 0; padding: 0; list-style: none; }
img { max-width: 100%; display: block; }
a { color: var(--ink); text-decoration: underline; text-decoration-thickness: 1px; text-underline-offset: 3px; }
a:hover { text-decoration-thickness: 2px; }
a.red { color: var(--red); }
button { font: inherit; }
.hidden { display: none !important; }
.num { font-variant-numeric: tabular-nums lining-nums; }
.ref, .mono { font-family: var(--mono); font-variant-numeric: tabular-nums; }
.label { font: 600 13px/1.3 var(--sans); color: var(--ink-2); }
.meta-label, .spec-label { font: 600 11px/1.3 var(--sans); text-transform: uppercase; letter-spacing: .10em; color: var(--ink-2); }
.note { font-size: 13px; line-height: 1.45; color: var(--ink-2); }
.soft { color: var(--ink-2); }
.prose { max-width: 680px; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
:focus-visible { outline: 3px solid var(--red); outline-offset: 2px; }
@media (max-width: 767px) {
  :root { --pad: 16px; }
  body { font-size: 16px; }
  h1 { font-size: 38px; line-height: 1.08; }
  h2 { font-size: 28px; line-height: 1.15; }
}

/* ---- The sheet: header, main, footer on one continuous white page ---- */
.sheet-wrap { background: var(--sheet); max-width: var(--sheet-max); margin: 0 auto; padding: 0 var(--pad); min-height: 100vh; }
.sheet-wrap.spoke { --sheet-max: 960px; }
.sheet-wrap.calc { --sheet-max: 960px; }
@media (max-width: 1212px) { .sheet-wrap { max-width: none; } }

/* ---- Header (sheet skin). Same nav markup as the hub; the hub restyles it on Night in home.css ---- */
.hdr { position: sticky; top: 0; z-index: 40; background: var(--sheet); display: flex; align-items: center; gap: 28px; padding: 12px 0; border-bottom: 1px solid var(--hair); font-size: 15px; }
.hdr-logo img { height: 58px; width: auto; }
.hdr-right { margin-left: auto; display: flex; gap: 18px; align-items: center; }
.hdr .btn { min-height: 40px; padding: 0 16px; font-size: 15px; }
.menu-btn { display: none; margin-left: auto; background: none; border: 1px solid var(--rule); border-radius: 2px; padding: 8px 14px; cursor: pointer; color: var(--ink); }
/* Nav: two menus (Cold rooms, Calculators) + three links */
.nav { display: flex; gap: 22px; align-items: center; }
.nav-item { position: relative; }
.nav-btn { background: none; border: 0; padding: 8px 0; font: inherit; color: var(--ink-2); cursor: pointer; display: inline-flex; align-items: center; gap: 7px; white-space: nowrap; }
.nav-btn::after { content: ""; width: 6px; height: 6px; border-right: 1.5px solid currentColor; border-bottom: 1.5px solid currentColor; transform: rotate(45deg) translateY(-2px); }
.nav-btn:hover, .nav-item.open > .nav-btn { color: var(--ink); }
.nav-link { text-decoration: none; color: var(--ink-2); white-space: nowrap; padding: 8px 0; }
.nav-link:hover { color: var(--ink); text-decoration: underline; }
.nav-link.on { color: var(--ink); text-decoration: underline; text-decoration-color: var(--red); text-decoration-thickness: 2px; }
.menu { display: none; position: absolute; top: 100%; left: -16px; min-width: 300px; background: var(--sheet); border: 1px solid var(--rule); padding: 10px 0; z-index: 60; }
.nav-item.open > .menu { display: block; }
@media (hover: hover) { .nav-item:hover > .menu, .nav-item:focus-within > .menu { display: block; } }
.menu a { display: block; padding: 8px 16px; text-decoration: none; color: var(--ink); font-size: 15px; }
.menu a:hover { background: #F4F3EF; text-decoration: underline; }
.menu-label { font: 600 11px/1.3 var(--sans); text-transform: uppercase; letter-spacing: .10em; color: var(--ink-2); padding: 8px 16px 4px; }
.menu-group + .menu-group { border-top: 1px solid var(--hair); margin-top: 6px; padding-top: 6px; }
@media (max-width: 900px) {
  .hdr { flex-wrap: wrap; gap: 12px; }
  .hdr-logo img { height: 42px; }
  .nav { display: none; }
  .nav.open { display: flex; flex-direction: column; align-items: stretch; gap: 0; width: 100%; order: 5; border-top: 1px solid var(--hair); }
  .nav.open .nav-item, .nav.open .nav-link { border-bottom: 1px solid var(--hair); }
  .nav.open .nav-link { padding: 14px 0; font-size: 17px; color: var(--ink); }
  .nav.open .nav-btn { padding: 14px 0 6px; font-size: 13px; font-weight: 600; text-transform: uppercase; letter-spacing: .08em; color: var(--ink-2); pointer-events: none; }
  .nav.open .nav-btn::after { display: none; }
  .nav.open .menu { display: block; position: static; border: 0; padding: 0 0 8px; min-width: 0; }
  .nav.open .menu a { padding: 10px 0 10px 12px; font-size: 17px; }
  .nav.open .menu-label { padding-left: 12px; }
  .nav.open .menu-group + .menu-group { border-top: 0; margin-top: 0; padding-top: 0; }
  .menu-btn { display: inline-block; }
  .hdr-right { margin-left: 0; }
}
@media (max-width: 480px) { .hdr .btn { display: none; } }

/* ---- Buttons and links ---- */
.btn { display: inline-flex; align-items: center; justify-content: center; min-height: 48px; padding: 0 20px; border-radius: 2px; font: 600 16px/1 var(--sans); text-decoration: none; cursor: pointer; border: 1px solid transparent; transition: background .12s, color .12s, border-color .12s; }
.btn-primary { background: var(--red); color: #fff; border-color: var(--red); }
.btn-primary:hover { background: var(--red-ink); border-color: var(--red-ink); }
.btn-secondary { background: var(--sheet); color: var(--ink); border-color: var(--rule); }
.btn-secondary:hover { border-color: var(--red); color: var(--red); }
.btn[disabled], .btn[aria-disabled="true"] { background: var(--sheet); color: var(--ink-2); border-color: var(--rule); cursor: not-allowed; }
@media (max-width: 767px) { .btn { min-height: 52px; } .btn.wide-m { width: 100%; } }
.acts { display: flex; flex-wrap: wrap; gap: 14px 22px; align-items: center; }

/* ---- Breadcrumb ---- */
.crumb { padding: 12px 0; border-bottom: 1px solid var(--hair); font-size: 14px; color: var(--ink-2); display: flex; flex-wrap: wrap; gap: 0 10px; }
.crumb a { color: var(--ink-2); text-decoration: none; }
.crumb a:hover { text-decoration: underline; }
.crumb span:last-child { color: var(--ink); }

/* ---- Hero ---- */
.hero { padding: 48px 0 8px; }
.hero h1 { max-width: 17ch; }
.hero .lead { margin-top: 20px; max-width: 58ch; color: var(--ink-2); }
.hero .acts { margin-top: 28px; }
.hero .alt { font-size: 15px; margin-top: 18px; color: var(--ink-2); }
@media (max-width: 767px) { .hero { padding-top: 32px; } }

/* Proof figures: one ruled row */
.figs { display: grid; grid-template-columns: repeat(2, 1fr); border-top: 2px solid var(--rule); border-bottom: 1px solid var(--hair); margin-top: 40px; }
.figs > div { padding: 16px 0; border-top: 1px solid var(--hair); }
.figs > div:nth-child(-n+2) { border-top: none; }
.figs .v { font-size: 30px; line-height: 1; font-weight: 600; letter-spacing: -0.02em; font-variant-numeric: tabular-nums; }
.figs .k { margin-top: 8px; font-size: 13px; color: var(--ink-2); }
@media (min-width: 768px) { .figs { grid-template-columns: repeat(4, 1fr); gap: 0 24px; } .figs > div { border-top: none; } }

/* ---- Sections: 2px rule, number + H2 row, hairline rows ---- */
.sec { border-top: 2px solid var(--rule); padding: 48px 0; }
.sec-head { display: grid; grid-template-columns: 56px minmax(0,1fr); gap: 8px 24px; padding-bottom: 18px; align-items: baseline; }
.sec-head .no { font-variant-numeric: tabular-nums; color: var(--ink-2); font-size: 15px; }
.sec-head .intro { grid-column: 2; color: var(--ink-2); max-width: 60ch; margin-top: 8px; }
@media (max-width: 767px) { .sec { padding: 28px 0; } .sec-head { grid-template-columns: 1fr; } .sec-head .intro { grid-column: 1; } }

.row { display: grid; gap: 4px 24px; padding: 20px 0; border-top: 1px solid var(--hair); align-items: baseline; }
.row .t { font-weight: 600; }
.row .d { color: var(--ink-2); font-size: 16px; }
.row .d a { color: var(--ink); }
.row .go { white-space: nowrap; font-size: 16px; }
.row .no { font-variant-numeric: tabular-nums; color: var(--ink-2); }
.row .d p + p { margin-top: 10px; }
@media (min-width: 768px) {
  .row.dir { grid-template-columns: 220px minmax(0,1fr) 160px; }
  .row.dir .go { text-align: right; }
  .row.seq { grid-template-columns: 56px 220px minmax(0,1fr); }
  .row.two { grid-template-columns: 220px minmax(0,1fr); }
}
@media (max-width: 767px) { .row { padding: 18px 0; } }
.divider { padding: 22px 0 6px; }
.rows > .divider:first-child { padding-top: 0; }
.rows-end { border-bottom: 1px solid var(--hair); }

/* ---- Tables ---- */
.tbl-wrap { overflow-x: auto; }
table.tbl { width: 100%; border-collapse: collapse; font-size: 16px; }
.tbl th { text-align: left; font: 600 11px/1.3 var(--sans); text-transform: uppercase; letter-spacing: .10em; color: var(--ink-2); padding: 8px 12px 8px 0; border-bottom: 2px solid var(--rule); }
.tbl td { padding: 12px 12px 12px 0; border-bottom: 1px solid var(--hair); vertical-align: top; }
.tbl td:last-child, .tbl th:last-child { padding-right: 0; }
.tbl td.num, .tbl th.num { font-variant-numeric: tabular-nums; white-space: nowrap; }
.tbl td.k { font-weight: 600; white-space: nowrap; }
.tbl tr.total td { border-bottom: 2px solid var(--rule); font-weight: 600; }
.tbl td.divider-cell { padding: 8px 0 6px; font: 600 11px/1.3 var(--sans); text-transform: uppercase; letter-spacing: .10em; color: var(--ink-2); border-top: 2px solid var(--rule); }
.tbl-note { margin-top: 12px; }
@media (max-width: 767px) { table.tbl { font-size: 15px; } }

/* ---- Disclosures (FAQ) ---- */
details.faq { border-top: 1px solid var(--hair); }
details.faq:last-of-type { border-bottom: 1px solid var(--hair); }
details.faq summary { list-style: none; cursor: pointer; padding: 18px 0; display: flex; justify-content: space-between; gap: 20px; font-weight: 600; }
details.faq summary::-webkit-details-marker { display: none; }
details.faq summary::after { content: "+"; color: var(--ink-2); font-variant-numeric: tabular-nums; flex: none; }
details.faq[open] summary::after { content: "−"; }
details.faq p { padding: 0 0 20px; color: var(--ink-2); max-width: 68ch; font-size: 16px; }
details.faq p a { color: var(--ink); }

/* ---- Text index (replaces pills) ---- */
.index { color: var(--ink-2); font-size: 16px; }
.index b { color: var(--ink); font-weight: 600; }

/* ---- The red band: the one allowed box, once per page ---- */
.band { background: var(--red); color: #fff; margin: 0 calc(-1 * var(--pad)); padding: 56px var(--pad); display: grid; gap: 24px 40px; }
.band h2, .band h3 { color: #fff; }
.band p { color: rgba(255,255,255,.85); }
.band .lead { max-width: 52ch; margin-top: 10px; }
.band a { color: #fff; }
.band .btn-primary { background: #fff; color: var(--red); border-color: #fff; }
.band .btn-primary:hover { background: #F4F3EF; }
.band .btn-secondary { background: transparent; color: #fff; border-color: rgba(255,255,255,.7); }
.band .btn-secondary:hover { border-color: #fff; color: #fff; }
.band .note { color: rgba(255,255,255,.75); }
@media (min-width: 900px) { .band.cta { grid-template-columns: minmax(0,1fr) max-content; align-items: center; } }
@media (max-width: 767px) { .band { padding: 40px var(--pad); } .band .acts { flex-direction: column; align-items: stretch; } .band .btn { width: 100%; } }

/* ---- Forms (unboxed rows; controls keep a 1px boundary) ---- */
.field { font: 400 16px/1.3 var(--sans); min-height: 48px; width: 100%; padding: 0 14px; border: 1px solid var(--rule); border-radius: 0; background: var(--sheet); color: var(--ink); }
textarea.field { padding: 12px 14px; min-height: 120px; resize: vertical; }
select.field { appearance: none; -webkit-appearance: none; background-image: linear-gradient(45deg, transparent 50%, var(--ink-2) 50%), linear-gradient(135deg, var(--ink-2) 50%, transparent 50%); background-position: calc(100% - 20px) 55%, calc(100% - 14px) 55%; background-size: 6px 6px; background-repeat: no-repeat; padding-right: 40px; }
.field:focus { outline: none; border-color: var(--red); box-shadow: inset 0 0 0 1px var(--red); }
.field.big { font-size: 22px; font-weight: 600; font-variant-numeric: tabular-nums; }
.frow { padding: 14px 0; border-top: 1px solid var(--hair); }
.frow:first-child { border-top: 0; padding-top: 0; }
.frow label, .frow .flabel { display: block; font: 600 14px/1.3 var(--sans); margin-bottom: 8px; }
.frow .optional { font-weight: 400; color: var(--ink-2); }
.frow-2 { display: grid; gap: 0 24px; }
@media (min-width: 640px) { .frow-2 { grid-template-columns: 1fr 1fr; } }
.contact-grid { display: grid; gap: 32px 48px; }
.contact-grid form { background: var(--sheet); color: var(--ink); padding: 24px; }
.contact-grid form .frow label { color: var(--ink); }
.ledger { border-top: 2px solid rgba(255,255,255,.6); }
.ledger div { display: grid; grid-template-columns: 110px minmax(0,1fr); gap: 0 16px; padding: 12px 0; border-bottom: 1px solid rgba(255,255,255,.3); font-size: 15px; }
.ledger .k { color: rgba(255,255,255,.7); font-size: 13px; padding-top: 2px; }
.ledger a { text-decoration: none; font-weight: 600; }
.ledger a:hover { text-decoration: underline; }
@media (min-width: 900px) { .contact-grid { grid-template-columns: minmax(0,1fr) 420px; } .contact-grid form { padding: 28px; } }
.success { padding: 28px 0; }

/* ---- Footer: ruled text columns on the sheet ---- */
.foot { border-top: 2px solid var(--rule); margin-top: 64px; padding: 32px 0 40px; display: grid; gap: 28px 32px; font-size: 15px; }
.foot h4 { font: 600 13px/1.3 var(--sans); color: var(--ink-2); margin-bottom: 12px; }
.foot .col a { display: block; text-decoration: none; color: var(--ink); padding: 5px 0; }
.foot .col a:hover { text-decoration: underline; }
.foot .about img { height: 32px; margin-bottom: 14px; }
.foot .about p { color: var(--ink-2); font-size: 15px; max-width: 32ch; }
.foot address { font-style: normal; color: var(--ink-2); margin-top: 12px; }
.foot .lines div { padding: 4px 0; color: var(--ink-2); }
.foot .lines a { display: inline; padding: 0; }
.foot-bottom { grid-column: 1 / -1; border-top: 1px solid var(--hair); padding-top: 16px; color: var(--ink-2); font-size: 14px; }
@media (min-width: 768px) { .foot { grid-template-columns: 1.3fr 1fr 1fr 1fr; } }

/* ============================================================================
   Calculators (assets/calc.js owns the flow; these are the looks)
   ============================================================================ */
.calc-top { padding: 32px 0 0; }
.calc-top h1 { font-size: 44px; max-width: none; }
#calc { background: #F4F3EF; margin: 24px calc(-1 * var(--pad)) 0; padding: 8px var(--pad) 40px; border-top: 1px solid var(--hair); }
@media (max-width: 767px) { .calc-top h1 { font-size: 34px; } }
.calc-top .line { margin-top: 12px; color: var(--ink-2); max-width: 58ch; }
/* Three stages on one ruled line: current = ink + red underline, done = ink, future = soft */
.funnel { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0 24px; margin-top: 24px; padding: 14px 0; border-top: 2px solid var(--rule); border-bottom: 1px solid var(--hair); font-size: 16px; }
.funnel li { color: var(--ink-3); }
.funnel .fs-label { display: inline-flex; gap: 10px; align-items: baseline; font-weight: 500; }
.funnel .fs-label::before { content: counter(stage, decimal-leading-zero); font-variant-numeric: tabular-nums; font-size: 14px; }
.funnel { counter-reset: stage; }
.funnel li { counter-increment: stage; }
.funnel .fs-line { display: none; }
.funnel li.is-done { color: var(--ink); }
.funnel li.is-current { color: var(--ink); }
.funnel li.is-current .fs-label { font-weight: 600; box-shadow: inset 0 -2px 0 var(--red); padding-bottom: 4px; }
@media (max-width: 560px) { .funnel { font-size: 14px; gap: 0 12px; } .funnel .fs-label { gap: 6px; } }
.progress-line { padding: 20px 0 4px; font-size: 15px; color: var(--ink-2); }
.progress-line b { color: var(--ink); font-weight: 600; }

/* Question rows */
.q { display: grid; grid-template-columns: 48px minmax(0,1fr); gap: 6px 0; padding: 28px 0; border-top: 1px solid var(--hair); }
.q:first-of-type { border-top: 0; }
.q .no { font: 700 22px/1 var(--disp); font-variant-numeric: tabular-nums; color: var(--red); padding-top: 2px; }
.q .q-label { font: 700 20px/1.3 var(--disp); letter-spacing: -0.01em; }
.q .q-label .live { color: var(--red); font-variant-numeric: tabular-nums; margin-left: 8px; }
.q .body { grid-column: 2; }
.q .hint { margin-top: 8px; color: var(--ink-2); font-size: 13px; line-height: 1.45; }
.q .hint a { color: var(--ink); }
.q .inline { display: flex; align-items: center; gap: 12px; margin-top: 10px; }
.q .inline .field { max-width: 280px; }
.q .unit { font-size: 15px; color: var(--ink-2); white-space: nowrap; }
@media (max-width: 767px) { .q { padding: 22px 0; grid-template-columns: 36px minmax(0,1fr); } .q .no { font-size: 18px; } .q .q-label { font-size: 18px; } }

/* Choice rows are controls: white blocks with a 1px boundary on the working ground (the spec allows a
   boundary on controls). Whole block is the tap target; selected = red border + filled radio + bold. */
.seg { display: grid; gap: 8px; margin-top: 12px; }
.seg input { position: absolute; opacity: 0; pointer-events: none; }
.seg label { position: relative; display: grid; grid-template-columns: minmax(0,1fr) 20px; gap: 2px 16px; min-height: 56px; padding: 14px 16px; cursor: pointer; user-select: none; -webkit-tap-highlight-color: transparent; background: var(--sheet); border: 1px solid var(--rule); font-size: 16px; }
.seg label > div { grid-column: 1; }
.seg label::after { content: ""; grid-column: 2; grid-row: 1 / span 2; align-self: center; width: 20px; height: 20px; border-radius: 50%; border: 1.5px solid var(--rule); background: #fff; }
.seg label .t, .seg label .font-semibold { font-weight: 500; }
.seg label:hover { border-color: var(--ink); }
.seg label .secondary { color: var(--ink-2); font-size: 14px; margin-top: 2px; }
.seg input:checked + label { border-color: var(--red); box-shadow: inset 0 0 0 1px var(--red); }
.seg input:checked + label::after { border-color: var(--red); background: var(--red); box-shadow: inset 0 0 0 4px #fff; }
.seg input:checked + label .t, .seg input:checked + label .font-semibold { font-weight: 600; }
.seg input:focus-visible + label { outline: 3px solid var(--red); outline-offset: 2px; }
.seg input:disabled + label { color: var(--ink-3); cursor: not-allowed; border-color: var(--hair); }
.seg input:disabled + label .secondary { color: var(--ink-3); }
@media (min-width: 768px) {
  .seg.seg-cols-2 { grid-template-columns: 1fr 1fr; }
  .seg.seg-cols-3 { grid-template-columns: 1fr 1fr 1fr; }
  .seg.seg-cols-4 { grid-template-columns: repeat(4, 1fr); }
}
/* Small toggle (length × width vs total): two text choices on one line */
.mini { display: inline-flex; gap: 0; margin: 4px 0 12px; border-bottom: 1px solid var(--rule); }
.mini input { position: absolute; opacity: 0; pointer-events: none; }
.mini label { padding: 8px 14px 8px 0; margin-right: 18px; font-size: 14px; font-weight: 500; cursor: pointer; color: var(--ink-2); user-select: none; }
.mini label:hover { color: var(--ink); }
.mini input:checked + label { color: var(--ink); font-weight: 600; box-shadow: inset 0 -2px 0 var(--red); }
/* Slider */
input[type=range] { -webkit-appearance: none; appearance: none; width: 100%; max-width: 480px; background: transparent; margin: 10px 0 4px; }
input[type=range]::-webkit-slider-runnable-track { height: 4px; background: var(--hair); }
input[type=range]::-webkit-slider-thumb { -webkit-appearance: none; height: 24px; width: 24px; border-radius: 50%; background: var(--red); cursor: pointer; margin-top: -10px; border: 2px solid #fff; box-shadow: 0 0 0 1px var(--rule); }
input[type=range]::-moz-range-track { height: 4px; background: var(--hair); }
input[type=range]::-moz-range-thumb { height: 24px; width: 24px; border-radius: 50%; background: var(--red); cursor: pointer; border: 2px solid #fff; box-shadow: 0 0 0 1px var(--rule); }
.range-marks { display: flex; justify-content: space-between; max-width: 480px; font-size: 12px; color: var(--ink-2); font-variant-numeric: tabular-nums; }

/* Gate: after a 2px rule, copy left, button right */
.gate { margin-top: 12px; padding: 24px 0 8px; border-top: 2px solid var(--rule); display: grid; gap: 14px 24px; }
.gate .sum { color: var(--ink-2); font-size: 16px; }
.gate .sum b { color: var(--ink); font-weight: 600; display: block; margin-top: 4px; }
.gate .support { color: var(--ink-2); font-size: 13px; }
.gate .missing { color: var(--red); font-size: 13px; font-weight: 600; min-height: 1.4em; }
@media (min-width: 720px) { .gate { grid-template-columns: minmax(0,1fr) max-content; align-items: center; } .gate .support, .gate .missing { grid-column: 1 / -1; } }
#build-btn[disabled] { background: var(--sheet); color: var(--ink-2); border-color: var(--rule); cursor: not-allowed; }

/* Calculation sequence: hairline rows, active row = red left rule */
#view-building { padding: 24px 0; border-top: 2px solid var(--rule); max-width: 560px; }
#build-steps { counter-reset: step; }
.build-step { position: relative; display: grid; grid-template-columns: 40px minmax(0,1fr); gap: 0; padding: 14px 0 14px 16px; border-top: 1px solid var(--hair); color: var(--ink-3); counter-increment: step; }
.build-step:first-child { border-top: 0; }
.build-step::before { content: counter(step, decimal-leading-zero); font-variant-numeric: tabular-nums; font-size: 14px; padding-top: 2px; }
.build-step::after { content: ""; position: absolute; left: 0; top: 0; bottom: 0; width: 4px; background: transparent; }
.build-step.active { color: var(--ink); font-weight: 600; }
.build-step.active::after { background: var(--red); }
.build-step.done { color: var(--ink); }
.build-step .material-symbols-outlined { display: none; }

/* The planning estimate sheet (unchanged grammar) */
#spec { background: var(--sheet); border: 1px solid var(--rule); padding: 26px 28px; max-width: 800px; margin-top: 24px; }
#spec h2 { font-family: var(--sans); font-weight: 600; font-size: 20px; line-height: 1.2; text-transform: uppercase; letter-spacing: .08em; }
#spec .sub { color: var(--ink-2); font-size: 14px; margin-top: 4px; }
#spec .meta { border-top: 1px solid var(--rule); margin-top: 12px; padding-top: 10px; display: grid; gap: 6px; font-size: 14px; }
#spec .meta .spec-label { margin-right: 8px; }
.spec-head { display: none; }
.spec-row { display: grid; grid-template-columns: 1fr; gap: 2px 20px; padding: 11px 0; border-top: 1px solid var(--hair); }
.spec-row .i { font-size: 14px; }
.spec-row .v { font-weight: 600; font-variant-numeric: tabular-nums; white-space: nowrap; font-size: 15px; line-height: 1.25; }
.spec-row .n { font-size: 12.5px; line-height: 1.35; color: var(--ink-2); }
.spec-row.money .v { font-size: 19px; }
.spec-row.money-last { border-bottom: 2px solid var(--rule); }
.spec-section { display: block; padding: 7px 0; margin-top: 10px; border-top: 2px solid var(--rule); background: #F4F3EF; }
details.spec-more > summary { list-style: none; cursor: pointer; padding: 10px 0; border-top: 1px solid var(--hair); font-size: 13px; font-weight: 600; color: var(--red); }
details.spec-more > summary::-webkit-details-marker { display: none; }
details.spec-more > summary::before { content: attr(data-closed); }
details.spec-more[open] > summary::before { content: attr(data-open); }
#spec .limits { border-top: 2px solid var(--rule); margin-top: 14px; padding-top: 10px; font-size: 13.5px; line-height: 1.5; color: var(--ink-2); }
@media (min-width: 640px) {
  .spec-row { grid-template-columns: minmax(0,1.05fr) max-content minmax(0,1fr); align-items: baseline; }
  .spec-row .v { font-size: 16px; }
  .spec-row.money .v { font-size: 20px; }
  .spec-head { display: grid; grid-template-columns: minmax(0,1.05fr) max-content minmax(0,1fr); gap: 0 20px; padding: 6px 0; }
}
@media (max-width: 639px) { #spec { padding: 18px 16px; } }
.reveal { animation: reveal .3s ease-out; }
@keyframes reveal { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: none; } }
@media (prefers-reduced-motion: reduce) { .reveal { animation: none; } html { scroll-behavior: auto; } }

/* Email action + form + success */
#email-action { margin-top: 24px; padding-top: 20px; border-top: 2px solid var(--rule); display: grid; gap: 12px; max-width: 800px; }
#email-action p { color: var(--ink-2); font-size: 16px; }
#email-action .promise { font-size: 14px; }
#report-section { margin-top: 20px; max-width: 560px; background: var(--sheet); border: 1px solid var(--rule); padding: 20px 24px; }
#report-form h3 { font-size: 20px; font-family: var(--disp); font-weight: 700; margin-bottom: 4px; }
#report-form .intro { color: var(--ink-2); font-size: 15px; margin-bottom: 8px; }
#report-form .frow:first-of-type { border-top: 0; }
#report-form .after { margin-top: 12px; font-size: 13px; color: var(--ink-2); }
#edit-row { margin-top: 20px; font-size: 15px; }
#view-sent { padding: 24px 0; border-top: 2px solid var(--rule); }
#view-sent h3 { font-family: var(--disp); font-weight: 700; font-size: 28px; margin-bottom: 8px; }
#view-sent .next { margin-top: 20px; border-top: 1px solid var(--hair); padding-top: 14px; }
#view-sent ol { counter-reset: n; margin-top: 10px; }
#view-sent ol li { counter-increment: n; display: grid; grid-template-columns: 40px minmax(0,1fr); padding: 12px 0; border-top: 1px solid var(--hair); }
#view-sent ol li::before { content: counter(n, decimal-leading-zero); font-variant-numeric: tabular-nums; color: var(--ink-2); font-size: 14px; padding-top: 2px; }
#view-sent .call { margin-top: 16px; padding-top: 14px; border-top: 2px solid var(--rule); }

@media print {
  body { background: #fff; }
  .hdr, .foot, #view-questions, #email-action, #report-section, #edit-row, .funnel, .hero-full, .band, .no-print { display: none !important; }
  .sheet-wrap { max-width: none; padding: 0; }
  #spec { border: 1px solid #000; }
}