/* Spool & Margin — house design system v3 (training/web-designer.md §3).
   One family, one action colour, surface steps instead of shadows; the calculator is the product on stage. */
:root {
  --bg: #FFFFFF; --bg2: #F5F5F7; --tile: #FFFFFF; --field: #FFFFFF;
  --ink: #1D1D1F; --ink2: #66666B; --hair: #D2D2D7; --edge: #86868B;
  --blue: #0071E3; --blue-ink: #FFFFFF; --link: #0066CC;
  --lose: #C9000F; --below: #A84A00; --ok: #1B7431; --warm: #BF4800;
  --c1: #F56300; --c2: #5E5CE6; --c3: #FFD60A; --c4: #30B0C7; --c5: #FF375F; --c6: #8E8E93; --fee: #C7C7CC;
  --stage: #000000; --stage-tile: #161617; --stage-ink: #F5F5F7; --stage-ink2: #A1A1A6; --stage-hair: #38383A; --stage-link: #2997FF; --stage-warm: #FF9F0A;
  --shadow: 0 1px 2px rgba(0, 0, 0, .04), 0 16px 48px rgba(0, 0, 0, .08);
  --font: -apple-system, BlinkMacSystemFont, "SF Pro Display", "SF Pro Text", "Inter", "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --mono: ui-monospace, "SF Mono", "Cascadia Mono", "Segoe UI Mono", Menlo, Consolas, monospace;
  --r-field: 12px; --r-card: 20px; --r-tile: 28px;
  --ease: cubic-bezier(.2, .7, .2, 1);
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #000000; --bg2: #101012; --tile: #1D1D1F; --field: #0B0B0C;
    --ink: #F5F5F7; --ink2: #A1A1A6; --hair: #424245; --edge: #6E6E73;
    --blue: #0071E3; --blue-ink: #FFFFFF; --link: #2997FF;
    --lose: #FF6961; --below: #FF9F0A; --ok: #30D158; --warm: #FF9F0A;
    --c6: #98989D; --fee: #48484A;
    --stage: #000000; --stage-tile: #161617;
    --shadow: 0 0 0 1px #2C2C2E;
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --bg: #000000; --bg2: #101012; --tile: #1D1D1F; --field: #0B0B0C;
  --ink: #F5F5F7; --ink2: #A1A1A6; --hair: #424245; --edge: #6E6E73;
  --blue: #0071E3; --blue-ink: #FFFFFF; --link: #2997FF;
  --lose: #FF6961; --below: #FF9F0A; --ok: #30D158; --warm: #FF9F0A;
  --c6: #98989D; --fee: #48484A;
  --stage: #000000; --stage-tile: #161617;
  --shadow: 0 0 0 1px #2C2C2E;
  color-scheme: dark;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; scroll-padding-top: 72px; }
body { margin: 0; background: var(--bg); color: var(--ink); font: 400 17px/1.47 var(--font); letter-spacing: -.01em; -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; text-rendering: optimizeLegibility; overflow-x: clip; }
img { max-width: 100%; height: auto; display: block; }
a { color: var(--link); text-decoration: none; }
a:hover { text-decoration: underline; text-underline-offset: 3px; }
/* a11y: links inside running text are underlined, so they do not rely on colour alone (WCAG 1.4.1) */
:is(p, li, td, .hint, .note) a:not(.btn) { text-decoration: underline; text-decoration-thickness: 1px; text-underline-offset: 3px; }
p { margin: 0 0 16px; text-wrap: pretty; }
:focus-visible { outline: 3px solid var(--blue); outline-offset: 2px; border-radius: 6px; }
.skip { position: absolute; left: -999px; top: 8px; background: var(--ink); color: var(--bg); padding: 12px 16px; border-radius: 980px; z-index: 40; }
.skip:focus { left: 8px; }
.wrap { max-width: 1160px; margin-inline: auto; padding-left: max(20px, env(safe-area-inset-left, 0px)); padding-right: max(20px, env(safe-area-inset-right, 0px)); }
.small { font-size: 14px; line-height: 1.4; letter-spacing: 0; } .muted { color: var(--ink2); }
.vh { position: absolute; width: 1px; height: 1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; }

/* ---------- header ---------- */
header.site { position: sticky; top: 0; z-index: 30; background: color-mix(in srgb, var(--bg) 82%, transparent); backdrop-filter: saturate(180%) blur(20px); -webkit-backdrop-filter: saturate(180%) blur(20px); border-bottom: 1px solid color-mix(in srgb, var(--hair) 60%, transparent); }
header.site .wrap { display: flex; align-items: center; justify-content: space-between; gap: 24px; min-height: 52px; }
.brand { display: inline-flex; align-items: center; gap: 10px; min-height: 48px; font-weight: 600; font-size: 17px; letter-spacing: -.02em; color: var(--ink); white-space: nowrap; }
.brand:hover { text-decoration: none; }
.brand::before { content: ""; width: 18px; height: 18px; border-radius: 50%; border: 5px solid var(--ink); box-shadow: inset 0 0 0 1.5px var(--bg), inset 0 0 0 4px var(--c1); flex: none; }
nav.main { display: flex; gap: 4px 28px; font-size: 14px; letter-spacing: 0; }
nav.main a { display: inline-flex; align-items: center; min-height: 48px; color: var(--ink2); white-space: nowrap; transition: color .2s var(--ease); }
nav.main a:hover { color: var(--ink); text-decoration: none; }
nav.main a[aria-current="page"] { color: var(--ink); font-weight: 600; }

/* ---------- type ---------- */
.kicker, .eyebrow { margin: 0 0 12px; font-size: 14px; line-height: 1.3; font-weight: 600; letter-spacing: 0; color: var(--warm); }
h1 { margin: 0; font-weight: 600; font-size: clamp(40px, 5.2vw, 64px); line-height: 1.05; letter-spacing: -.03em; text-wrap: balance; }
h2 { margin: 0 0 16px; font-weight: 600; font-size: clamp(28px, 3.4vw, 40px); line-height: 1.1; letter-spacing: -.025em; text-wrap: balance; }
h3 { margin: 32px 0 8px; font-weight: 600; font-size: clamp(19px, 2vw, 21px); line-height: 1.2; letter-spacing: -.02em; }
.lead { margin: 20px 0 0; max-width: 30em; font-size: clamp(19px, 1.9vw, 21px); line-height: 1.38; letter-spacing: -.012em; color: var(--ink2); }

/* ---------- buttons ---------- */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; min-height: 52px; padding: 0 28px; border-radius: 980px; font-size: 17px; font-weight: 600; letter-spacing: -.01em; line-height: 1; white-space: nowrap; cursor: pointer; transition: filter .2s var(--ease), transform .12s var(--ease), background .2s var(--ease), border-color .2s var(--ease); }
.btn:hover { text-decoration: none; } .btn:active { transform: scale(.98); }
.btn.primary { background: var(--blue); color: var(--blue-ink); border: 0; }
.btn.primary:hover { filter: brightness(.92); } /* a11y: darker on hover; 1.08 dropped white-on-blue to 4.11:1 */
.btn.ghost, .btn.teal { background: transparent; color: var(--ink); border: 1px solid var(--edge); }
.btn.ghost:hover, .btn.teal:hover { border-color: var(--ink); }
.more { display: inline-flex; align-items: center; min-height: 48px; font-size: 17px; }
.more::after, .nudge a::after { content: "›"; margin-left: 6px; font-size: 1.15em; line-height: 1; transform: translateY(-1px); display: inline-block; }
.trustline { margin: 12px 0 0; font-size: 14px; line-height: 1.4; letter-spacing: 0; color: var(--ink2); }

/* ---------- stage: hero copy + inputs | live result ---------- */
.stage { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 520px); gap: 0 48px; align-items: start; padding-block: 64px 96px; }
.stage-left, .stage-right { min-width: 0; }
.hero-copy { padding-bottom: 40px; }
.assure { display: flex; flex-wrap: wrap; gap: 4px 20px; margin: 24px 0 0; padding: 0; list-style: none; font-size: 15px; letter-spacing: 0; color: var(--ink2); }
.assure li { display: inline-flex; align-items: center; gap: 8px; }
.assure li::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: var(--ok); }
.hero-cta { display: none; margin-top: 24px; }

.inputs { background: var(--bg2); border-radius: var(--r-tile); padding: 32px 32px 8px; scroll-margin-top: 72px; }
.toolbar { display: flex; flex-wrap: wrap; gap: 16px; align-items: end; padding-bottom: 28px; }
.toolbar > div { flex: 1 1 150px; min-width: 0; }
label { display: block; margin-bottom: 6px; font-size: 15px; line-height: 1.4; letter-spacing: 0; color: var(--ink2); }
select, input, button { font: inherit; color: inherit; letter-spacing: inherit; }
select, .in { width: 100%; height: 48px; background: var(--field); border: 1px solid var(--edge); border-radius: var(--r-field); transition: border-color .15s var(--ease), box-shadow .15s var(--ease); }
select { padding: 0 12px; font-size: 17px; }
.in { display: flex; align-items: center; gap: 6px; padding: 0 14px; }
.in:focus-within, select:focus-visible { outline: 0; border-color: var(--blue); box-shadow: 0 0 0 1px var(--blue), 0 0 0 5px color-mix(in srgb, var(--blue) 25%, transparent); }
.in input { flex: 1; min-width: 0; height: 100%; padding: 0; border: 0; outline: 0; background: transparent; font-size: 17px; font-variant-numeric: tabular-nums; -moz-appearance: textfield; appearance: textfield; }
.in input::-webkit-outer-spin-button, .in input::-webkit-inner-spin-button { -webkit-appearance: none; margin: 0; }
.cursym, .suf { font-size: 15px; color: var(--ink2); white-space: nowrap; }
button { cursor: pointer; }
#reset { flex: 0 0 auto; height: 48px; padding: 0 20px; border: 1px solid var(--edge); border-radius: 980px; background: transparent; font-size: 15px; font-weight: 500; transition: border-color .2s var(--ease); }
#reset:hover { border-color: var(--ink); }
fieldset { margin: 0; padding: 28px 0; border: 0; border-top: 1px solid var(--hair); min-width: 0; }
legend { float: left; width: 100%; margin: 0 0 16px; padding: 0; font-size: 19px; font-weight: 600; line-height: 1.2; letter-spacing: -.02em; }
legend b { display: inline-block; min-width: 2.2em; font: 500 14px/1 var(--mono); letter-spacing: 0; color: var(--ink2); vertical-align: 2px; }
legend + * { clear: both; }
.grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px 12px; }
.grid.three { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.f { min-width: 0; display: flex; flex-direction: column; justify-content: flex-end; }
.hint { display: block; margin-top: 12px; max-width: 46em; }
.price-field .in { height: 56px; } .price-field .in input { font-size: 24px; font-weight: 600; letter-spacing: -.02em; }
.price-field .cursym { font-size: 19px; }
#useSuggested { width: 100%; height: 56px; padding: 0 16px; border: 1px solid var(--edge); border-radius: 980px; background: transparent; font-size: 17px; font-weight: 500; transition: border-color .2s var(--ease); }
#useSuggested:hover { border-color: var(--ink); }
.formula-note { margin: 0; padding: 20px 0 24px; border-top: 1px solid var(--hair); }

/* result */
.stage-right { position: sticky; top: 64px; }
.results { background: var(--tile); border-radius: var(--r-tile); padding: 28px 32px 20px; box-shadow: var(--shadow); min-width: 0; scroll-margin-top: 72px; }
.verdict { font-size: 15px; color: var(--ink2); }
.verdict .vl { display: inline-flex; align-items: center; gap: 8px; padding: 6px 12px; border-radius: 980px; background: color-mix(in srgb, currentColor 10%, transparent); font-size: 14px; font-weight: 700; line-height: 1; letter-spacing: .04em; }
.verdict .vl::before { content: ""; width: 8px; height: 8px; border-radius: 50%; background: currentColor; }
.verdict small { display: block; margin-top: 14px; font-size: clamp(22px, 2.2vw, 28px); font-weight: 600; line-height: 1.14; letter-spacing: -.025em; color: var(--ink); text-wrap: balance; }
.verdict.lose .vl { color: var(--lose); } .verdict.below .vl, .verdict.warn .vl { color: var(--below); } .verdict.ok .vl { color: var(--ok); }
.big { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 16px; margin-top: 20px; padding-top: 16px; border-top: 1px solid var(--hair); }
.k { margin: 0; font-size: 15px; letter-spacing: 0; color: var(--ink2); }
.v { margin: 2px 0 0; font-size: clamp(36px, 4vw, 48px); font-weight: 600; line-height: 1.05; letter-spacing: -.035em; font-variant-numeric: tabular-nums; overflow-wrap: anywhere; }
.sug .v { color: var(--ok); }
.nudge { margin: 8px 0 0; font-size: 15px; line-height: 1.4; letter-spacing: 0; color: var(--ink2); }
.nudge[hidden] { display: none; }
.nudge a { display: inline-block; padding-block: 14px; font-weight: 500; }

.breakdown { margin-top: 12px; background: var(--tile); border-radius: var(--r-tile); padding: 24px 32px 20px; box-shadow: var(--shadow); min-width: 0; }
.layerhead .k { color: var(--ink); font-weight: 600; }
.layers { position: relative; height: clamp(112px, 15vh, 132px); margin-top: 12px; }
.layers .col { position: absolute; left: 0; bottom: 0; top: 0; width: 40%; display: flex; flex-direction: column-reverse; gap: 2px; }
.layers .col i { display: block; background: var(--c); border-radius: 3px; min-height: 0; transition: height .35s var(--ease); box-shadow: inset 0 0 0 1px color-mix(in srgb, var(--ink) 55%, transparent); }
.layers .col i:first-child { border-radius: 3px 3px 10px 10px; }
.layers .col i.fee { background: var(--fee); }
.zone { position: absolute; left: calc(40% + 8px); width: 6px; border-radius: 3px; transition: bottom .35s var(--ease), height .35s var(--ease); }
.zone.profit { background: var(--ok); } .zone.loss { background: var(--lose); }
.zonelabel { position: absolute; left: calc(40% + 24px); font-size: 15px; font-weight: 600; letter-spacing: -.01em; white-space: nowrap; transform: translateY(50%); background: var(--tile); padding: 2px 6px; transition: bottom .35s var(--ease); }
.zonelabel.profit { color: var(--ok); } .zonelabel.loss { color: var(--lose); }
.mark { position: absolute; left: 0; right: 0; height: 0; transition: bottom .35s var(--ease); }
.mark.price { border-top: 1.5px solid var(--ink); } .mark.sug { border-top: 1.5px dashed var(--ok); }
.mark span { position: absolute; right: 0; bottom: 4px; padding-left: 8px; font-size: 14px; letter-spacing: 0; color: var(--ink2); background: var(--tile); white-space: nowrap; }
.mark span b { font-weight: 600; color: var(--ink); font-variant-numeric: tabular-nums; }
.mark.sug span { top: 4px; bottom: auto; } .mark.sug span b { color: var(--ok); }
.layers.flip .mark.sug span, .layers.sugup .mark.sug span { top: auto; bottom: 4px; } .layers.flip .mark.price span { bottom: auto; top: 4px; }
.layers.hidesug .mark.sug span { display: none; }
.tables { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 0 28px; margin-top: 16px; }
table.rows { width: 100%; border-collapse: collapse; font-size: 15px; letter-spacing: 0; align-self: start; }
table.rows caption { text-align: left; padding-bottom: 6px; font-size: 15px; font-weight: 600; color: var(--ink); }
table.rows th { text-align: left; font-weight: 400; padding: 5px 0; color: var(--ink2); } table.rows td { text-align: right; padding: 5px 0; font-variant-numeric: tabular-nums; white-space: nowrap; }
table.rows tr th, table.rows tr td { border-top: 1px solid var(--hair); }
table.rows tr.total th, table.rows tr.total td { font-weight: 600; color: var(--ink); }
.dot { display: inline-block; width: 10px; height: 10px; margin-right: 8px; border-radius: 3px; flex: none; box-shadow: inset 0 0 0 1px color-mix(in srgb, var(--ink) 55%, transparent); } .dot.fee { background: var(--fee); }
.neg { color: var(--lose); }

/* ---------- sections ---------- */
.band { padding-block: 96px; }
.band.alt { background: var(--bg2); }
.sechead { max-width: 720px; margin-bottom: 48px; }
.sechead.center { margin-inline: auto; text-align: center; }
.sechead p:not(.eyebrow):not(.trustline) { margin: 0; font-size: clamp(19px, 1.9vw, 21px); line-height: 1.38; letter-spacing: -.012em; color: var(--ink2); }

/* ladder: three sizes of the same tool */
.ladder { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; }
.rung { display: flex; flex-direction: column; background: var(--tile); border-radius: var(--r-tile); padding: 32px; min-width: 0; }
.rung .step { margin: 0 0 20px; font: 500 14px/1 var(--mono); letter-spacing: 0; color: var(--ink2); }
.rung h3 { margin: 0; font-size: 24px; line-height: 1.15; letter-spacing: -.022em; }
.rung .price { margin: 8px 0 0; font-size: 17px; color: var(--ink2); } .rung .price b { color: var(--ink); font-weight: 600; }
.rung ul { margin: 24px 0 28px; padding: 0; list-style: none; font-size: 15px; letter-spacing: 0; color: var(--ink2); }
.rung li { padding: 10px 0; border-top: 1px solid var(--hair); }
.rung li strong { color: var(--ink); font-weight: 600; }
.rung .act { margin-top: auto; }
.rung .btn { width: 100%; }
.rung .here { display: flex; align-items: center; justify-content: center; min-height: 52px; border-radius: 980px; background: var(--bg2); font-size: 15px; font-weight: 500; color: var(--ink2); }
.band.alt .rung .here { background: var(--bg2); }
.rung.top { outline: 2px solid var(--ink); outline-offset: -2px; }
.tag { display: inline-block; font-size: 14px; font-weight: 600; letter-spacing: 0; white-space: nowrap; } .tag.ok { color: var(--ok); } .tag.below { color: var(--below); } .tag.lose { color: var(--lose); }
.vlist { width: 100%; border-collapse: collapse; margin: 24px 0 28px; font-size: 15px; letter-spacing: 0; }
.vlist caption { text-align: left; padding-bottom: 8px; font-size: 14px; color: var(--ink2); }
.vlist th, .vlist td { padding: 10px 0; text-align: left; font-weight: 400; border-top: 1px solid var(--hair); } .vlist td { text-align: right; }

/* paid product on a black stage */
.paid { background: var(--stage); color: var(--stage-ink); padding-block: 96px; border-block: 1px solid var(--stage-hair); }
.paid .eyebrow { color: var(--stage-warm); }
.paid h2 { font-size: clamp(32px, 4.2vw, 48px); line-height: 1.08; letter-spacing: -.028em; }
.paid .sechead p:not(.eyebrow), .paid p:not(.eyebrow) { color: var(--stage-ink2); }
.paid a:not(.btn) { color: var(--stage-link); }
.paid :focus-visible { outline-color: #FFFFFF; }
.duel { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.25fr); gap: 48px; align-items: center; }
.duel .sechead { margin: 0; }
.buyrow { display: flex; flex-wrap: wrap; align-items: center; gap: 12px 20px; margin-top: 32px; }
.paid .trustline { color: var(--stage-ink2); }
.pph { width: 100%; border-collapse: collapse; font-size: 15px; letter-spacing: 0; }
.pphwrap { background: var(--stage-tile); border-radius: var(--r-tile); padding: 28px 32px 20px; }
.pph caption { caption-side: bottom; text-align: left; padding-top: 16px; font-size: 14px; color: var(--stage-ink2); }
.pph th, .pph td { padding: 14px 0; text-align: left; font-weight: 400; border-top: 1px solid var(--stage-hair); }
.pph thead th { padding: 0 0 12px; border-top: 0; font-size: 14px; color: var(--stage-ink2); }
.pph th[scope="row"] { color: var(--stage-ink); padding-right: 12px; }
.pph td.m { width: 4.5em; color: var(--stage-ink2); font-variant-numeric: tabular-nums; }
.pph td.barcell { width: 34%; padding-inline: 8px 12px; }
.pph td.num, .pph th.num { text-align: right; font-variant-numeric: tabular-nums; white-space: nowrap; }
.pph td.num { font-size: 19px; font-weight: 600; letter-spacing: -.02em; color: var(--stage-ink); }
.pph .barcell i { display: block; height: 10px; min-width: 4px; border-radius: 5px; background: var(--stage-link); }
.pph tr.hi .barcell i { background: var(--c1); } .pph tr.lo .barcell i { background: var(--stage-ink2); }

.shots { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; margin-top: 64px; }
.window { display: flex; flex-direction: column; margin: 0; background: var(--stage-tile); border-radius: var(--r-card); overflow: hidden; min-width: 0; }
.window.wide { grid-column: 1 / -1; }
.window .bar { display: flex; align-items: center; gap: 6px; height: 40px; padding: 0 16px; font: 500 14px/1 var(--mono); letter-spacing: 0; color: var(--stage-ink2); }
.window .bar::before { content: ""; width: 10px; height: 10px; border-radius: 50%; background: #48484A; box-shadow: 16px 0 0 #48484A, 32px 0 0 #48484A; margin-right: 40px; flex: none; }
.window .pane { background: #FFFFFF; overflow-x: auto; }
.window .pane img { width: 100%; }
.window figcaption { padding: 20px 24px 24px; }
.window figcaption strong { display: block; font-size: 19px; font-weight: 600; letter-spacing: -.02em; color: var(--stage-ink); }
.window figcaption span { display: block; margin-top: 4px; font-size: 15px; letter-spacing: 0; color: var(--stage-ink2); }
.kpis { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1px; background: #E5E5EA; border-bottom: 1px solid #E5E5EA; }
.kpis div { background: #FFFFFF; padding: 16px 12px; text-align: center; }
.kpis dt { font-size: 14px; font-weight: 500; letter-spacing: 0; color: #66666B; }
.kpis dd { margin: 4px 0 0; font-size: clamp(19px, 2.2vw, 28px); font-weight: 600; letter-spacing: -.025em; color: #1D1D1F; font-variant-numeric: tabular-nums; }
.kpis { margin: 0; }
.window .pane { flex: 1; }
.paid .window .pane:focus-visible { outline: 3px solid var(--blue); outline-offset: -3px; border-radius: 0; }
table.sheet { width: 100%; border-collapse: collapse; font-size: 14px; letter-spacing: 0; color: #1D1D1F; }
table.sheet caption { text-align: left; padding: 14px 16px 10px; font-size: 14px; font-weight: 700; letter-spacing: .04em; color: #BF4800; }
table.sheet th, table.sheet td { padding: 9px 8px; text-align: right; font-weight: 400; border-top: 1px solid #E5E5EA; font-variant-numeric: tabular-nums; white-space: nowrap; }
table.sheet th:first-child, table.sheet td:first-child { padding-left: 16px; text-align: left; } table.sheet th:last-child, table.sheet td:last-child { padding-right: 16px; }
table.sheet thead th { background: #0F172A; color: #FFFFFF; font-size: 14px; font-weight: 600; border-top: 0; }
table.sheet td.b { font-weight: 600; }
table.sheet .st { display: inline-block; min-width: 3.6em; padding: 2px 8px; border-radius: 4px; background: #DCFCE7; color: #14532D; font-size: 14px; font-weight: 600; text-align: center; }
table.sheet .st.low { background: #FEF3C7; color: #78350F; }
.included { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 0 32px; margin: 64px 0 0; padding: 0; list-style: none; }
.included li { padding-top: 20px; border-top: 1px solid var(--stage-hair); font-size: 15px; letter-spacing: 0; color: var(--stage-ink2); }
.included strong { display: block; margin-bottom: 4px; font-size: 17px; font-weight: 600; letter-spacing: -.01em; color: var(--stage-ink); }
.closer { margin-top: 64px; text-align: center; }
.closer .buyrow { justify-content: center; flex-direction: column; gap: 0; }

/* trust */
.proofs { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 16px; }
.proof { background: var(--bg2); border-radius: var(--r-card); padding: 28px 24px; min-width: 0; }
.band.alt .proof { background: var(--tile); }
.proof .n { font: 500 14px/1 var(--mono); letter-spacing: 0; color: var(--ink2); }
.proof h3 { margin: 16px 0 8px; font-size: 19px; }
.proof p { margin: 0; font-size: 15px; letter-spacing: 0; color: var(--ink2); }

/* how it works */
.how { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: 48px; align-items: start; }
.how .sechead { margin: 0; position: sticky; top: 96px; }
.layerlist { margin: 0; padding: 0; list-style: none; counter-reset: layer; }
.layerlist li { display: grid; grid-template-columns: 20px minmax(0, 1fr); gap: 4px 16px; padding: 20px 0; border-top: 1px solid var(--hair); }
.layerlist li:last-child { border-bottom: 1px solid var(--hair); }
.layerlist .dot { width: 12px; height: 12px; margin: 7px 0 0; border-radius: 4px; }
.layerlist strong { font-weight: 600; }
.layerlist code, .formula { font-family: var(--mono); font-size: 14px; line-height: 1.5; letter-spacing: 0; }
.layerlist code { grid-column: 2; color: var(--ink2); }
.how .after { margin-top: 24px; color: var(--ink2); max-width: 40em; } .how .after strong { color: var(--ink); font-weight: 600; }

/* text column: FAQ, guides, articles */
.narrow { max-width: 660px; margin-inline: auto; padding-left: max(20px, env(safe-area-inset-left, 0px)); padding-right: max(20px, env(safe-area-inset-right, 0px)); }
article.narrow { padding-block: 64px 96px; }
article.narrow h1 { font-size: clamp(36px, 4.6vw, 56px); }
article.narrow .lead { max-width: none; margin-bottom: 40px; }
.narrow > h2 { margin-top: 64px; font-size: clamp(26px, 3vw, 32px); } .narrow > h2:first-child { margin-top: 0; }
.narrow p, .narrow li { color: var(--ink2); } .narrow strong { color: var(--ink); font-weight: 600; }
.narrow ul, .narrow ol { padding-left: 1.2em; margin: 0 0 16px; } .narrow li { margin: 8px 0; }
.narrow code { font-family: var(--mono); font-size: .88em; letter-spacing: 0; }
details { border-top: 1px solid var(--hair); } details:last-of-type { border-bottom: 1px solid var(--hair); }
summary { cursor: pointer; display: flex; justify-content: space-between; align-items: center; gap: 16px; min-height: 64px; padding: 16px 0; font-size: 19px; font-weight: 600; line-height: 1.25; letter-spacing: -.02em; color: var(--ink); list-style: none; }
summary::-webkit-details-marker { display: none; }
summary::after { content: ""; flex: none; width: 12px; height: 12px; border-right: 2px solid var(--ink2); border-bottom: 2px solid var(--ink2); transform: translateY(-3px) rotate(45deg); transition: transform .2s var(--ease); }
details[open] summary::after { transform: translateY(3px) rotate(-135deg); }
details p { margin: 0; padding: 0 32px 24px 0; }
.cards { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; }
.cards a { display: flex; flex-direction: column; gap: 8px; padding: 28px 24px; background: var(--bg2); border-radius: var(--r-card); color: var(--ink); transition: transform .2s var(--ease); }
.band.alt .cards a { background: var(--tile); }
.cards a:hover { text-decoration: none; transform: translateY(-2px); }
.cards strong { font-size: 19px; font-weight: 600; letter-spacing: -.02em; } .cards span { font-size: 15px; letter-spacing: 0; color: var(--ink2); }
.cards a::after { content: "Read the guide ›"; margin-top: auto; padding-top: 16px; font-size: 15px; color: var(--link); }
.note, .sum { margin: 24px 0; padding: 20px 24px; background: var(--bg2); border-radius: var(--r-card); }
.note p:last-child, .sum p:last-child { margin-bottom: 0; }
.formula { display: block; margin: 16px 0; padding: 16px 20px; background: var(--bg2); border-radius: var(--r-field); overflow-x: auto; color: var(--ink); }
.tablewrap { position: relative; overflow-x: auto; margin: 24px 0; background: var(--bg2); border-radius: var(--r-card); padding: 8px 20px; }
table.data { width: 100%; min-width: 480px; border-collapse: collapse; font-size: 15px; letter-spacing: 0; }
table.data th, table.data td { padding: 12px 12px 12px 0; text-align: left; border-bottom: 1px solid var(--hair); color: var(--ink); } table.data tbody tr:last-child td, table.data tbody tr:last-child th { border-bottom: 0; }
table.data caption { caption-side: top; text-align: left; padding: 12px 0 4px; font-size: 14px; color: var(--ink2); }
.narrow p.eyebrow { color: var(--warm); }
table.data thead th { font-size: 14px; font-weight: 400; color: var(--ink2); } table.data td { font-variant-numeric: tabular-nums; }

/* offer pair used at the end of guides and About */
.ctas { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; margin-top: 64px; }
.cta { display: flex; flex-direction: column; align-items: flex-start; padding: 32px 28px; background: var(--bg2); border-radius: var(--r-tile); min-width: 0; }
.cta h2, .cta h3 { margin: 0 0 8px; font-size: 21px; line-height: 1.2; letter-spacing: -.02em; }
.cta p { margin: 0 0 24px; font-size: 15px; letter-spacing: 0; color: var(--ink2); }
.cta .tagline { margin: 0 0 12px; font-size: 14px; font-weight: 600; color: var(--warm); }
.cta .btn { margin-top: auto; align-self: stretch; }
.cta .trustline { margin: 12px 0 0; }
.cta.paid { background: var(--stage); color: var(--stage-ink); padding: 32px 28px; border: 1px solid var(--stage-hair); }
.cta.paid p, .cta.paid .trustline { color: var(--stage-ink2); } .cta.paid .tagline { color: var(--stage-warm); }

/* final call */
.final { text-align: center; }
.final h2 { max-width: 16em; margin-inline: auto; }
.final .pair { display: flex; flex-wrap: wrap; justify-content: center; gap: 12px; margin-top: 32px; }

/* footer */
footer.site { padding-block: 32px 48px; border-top: 1px solid var(--hair); font-size: 13px; line-height: 1.4; letter-spacing: 0; color: var(--ink2); background: var(--bg2); }
footer.site nav { display: flex; flex-wrap: wrap; gap: 0 24px; margin-bottom: 12px; font-size: 14px; }
footer.site nav a { display: inline-flex; align-items: center; min-height: 48px; color: var(--ink); }
footer.site p { margin: 0; max-width: 62em; }

/* phone bar: live verdict + the free spreadsheet; appears after the first edit, never on load */
.bar-m { position: fixed; left: 0; right: 0; bottom: 0; z-index: 35; display: none; align-items: center; gap: 6px; padding: 8px 4px calc(8px + env(safe-area-inset-bottom, 0px)) 16px; background: color-mix(in srgb, var(--tile) 92%, transparent); backdrop-filter: saturate(180%) blur(20px); -webkit-backdrop-filter: saturate(180%) blur(20px); border-top: 1px solid var(--hair); }
.bar-m a.res { flex: 1; min-width: 0; display: flex; flex-direction: column; justify-content: center; min-height: 48px; color: var(--ink); font-size: 15px; letter-spacing: 0; line-height: 1.25; }
.bar-m a.res:hover { text-decoration: none; }
.bar-m a.res b { font-size: 14px; font-weight: 700; letter-spacing: .03em; color: var(--ink2); }
.bar-m a.res b.lose { color: var(--lose); } .bar-m a.res b.below, .bar-m a.res b.warn { color: var(--below); } .bar-m a.res b.ok { color: var(--ok); }
.bar-m a.res span { font-size: 14px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; font-variant-numeric: tabular-nums; }
.bar-m a.go { flex: none; display: inline-flex; flex-direction: column; align-items: center; justify-content: center; min-height: 48px; padding: 0 14px; border-radius: 980px; border: 1px solid var(--edge); color: var(--ink); font-size: 15px; font-weight: 600; letter-spacing: 0; line-height: 1.2; }
.bar-m a.go small { font-size: 14px; font-weight: 400; color: var(--ink2); }
.bar-m a.go:hover { text-decoration: none; }
.bar-m button { flex: none; width: 40px; height: 48px; border: 0; background: transparent; font-size: 22px; line-height: 1; color: var(--ink2); border-radius: 50%; }

@media (max-width: 1040px) {
  .stage { grid-template-columns: minmax(0, 1fr) minmax(0, 440px); gap: 0 32px; }
  .proofs { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .included { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 24px 32px; }
  .tables { grid-template-columns: minmax(0, 1fr); gap: 20px; }
  .stage-right { position: static; }
}
@media (max-height: 859px) and (min-width: 1041px) { .stage { align-items: stretch; } .stage-right { position: static; } .results { position: sticky; top: 64px; z-index: 2; } }
@media (max-width: 880px) {
  html { scroll-padding-top: 16px; }
  header.site { position: static; backdrop-filter: none; -webkit-backdrop-filter: none; background: var(--bg); }
  header.site .wrap { flex-direction: column; align-items: stretch; gap: 0; padding-inline: 0; }
  .brand { padding-left: max(20px, env(safe-area-inset-left, 0px)); padding-top: 4px; }
  nav.main { gap: 0 24px; flex-wrap: wrap; padding-left: max(20px, env(safe-area-inset-left, 0px)); padding-right: max(20px, env(safe-area-inset-right, 0px)); } /* a11y: wraps, no sideways scrolling (WCAG 1.4.10) */
  nav.main a { min-height: 44px; }
  .stage { display: flex; flex-direction: column; align-items: stretch; padding-block: 32px 64px; }
  .stage-left, .stage-right { display: contents; }
  .hero-copy { order: 1; padding-bottom: 32px; } .results { order: 2; } .inputs { order: 3; margin-top: 16px; } .breakdown { order: 4; }
  .hero-cta { display: flex; }
  .tables { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 0 28px; }
  .layers { height: 184px; }
  .band, .paid { padding-block: 64px; }
  .sechead { margin-bottom: 32px; }
  .ladder { grid-template-columns: minmax(0, 1fr); }
  .rung:first-child { display: none; }
  .duel, .how { grid-template-columns: minmax(0, 1fr); gap: 32px; }
  .how .sechead { position: static; }
  .shots { grid-template-columns: minmax(0, 1fr); margin-top: 48px; }
  .kpis { grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .included, .closer { margin-top: 48px; }
  .cards { grid-template-columns: minmax(0, 1fr); }
  .ctas { grid-template-columns: minmax(0, 1fr); }
  body.edited .bar-m:not([hidden]) { display: flex; }
  body.edited:has(.bar-m:not([hidden])) footer.site { padding-bottom: calc(96px + env(safe-area-inset-bottom, 0px)); }
}
@media (max-width: 560px) {
  .inputs, .results, .breakdown { padding-inline: 20px; border-radius: 22px; }
  .results { padding-block: 24px; } .breakdown { padding-block: 24px; }
  .rung, .pphwrap { padding: 24px 20px; border-radius: 22px; }
  .grid.three { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  #useSuggested { padding: 0 8px; font-size: 15px; line-height: 1.15; }
  .tables { grid-template-columns: minmax(0, 1fr); gap: 20px; }
  .btn { width: 100%; }
  .buyrow { flex-direction: column; align-items: stretch; gap: 0; }
  .proofs { grid-template-columns: minmax(0, 1fr); }
  .included { grid-template-columns: minmax(0, 1fr); gap: 20px; }
  .pph td.m, .pph th.m { display: none; }
  .pph td.barcell { width: 22%; }
  .layers { height: 150px; }
  .pph td.num { font-size: 17px; }
  .window .pane.scroll img { width: 760px; max-width: none; }
  .kpis { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .final .pair { flex-direction: column; }
  details p { padding-right: 0; }
}
@media (prefers-reduced-motion: reduce) { *, *::before, *::after { transition: none !important; scroll-behavior: auto !important; } }