/* The calculator uses the same palette, type, canvas and controls as AppSola.
   Kept separate from the landing page's product-demo and chapter styles. */
:root {
  --ink: #091a43;
  --muted: #5b657d;
  --blue: #4665ff;
  --line: #dee3ef;
  --paper: #fffdf9;
  --apricot: #ff9659;
  --canvas-color: #e7eafb;
  --canvas-wash: linear-gradient(125deg, #eff2ff 0%, #faf8f5 48%, #fff0e3 100%);
  --ease: cubic-bezier(.22, 1, .36, 1);
  background: var(--canvas-color);
}
html { scroll-padding-top: calc(124px + env(safe-area-inset-top, 0px)); }
body { position: relative; isolation: isolate; background: var(--canvas-color); min-height: 100svh; }
.site-backdrop { position: fixed; inset: 0; z-index: -1; overflow: hidden; pointer-events: none; background: var(--canvas-wash); }
.site-backdrop-paint { position: absolute; inset: 0; background: var(--canvas-wash); overflow: hidden; }
.site-backdrop-paint::before, .site-backdrop-paint::after { content: ""; position: absolute; inset: -15%; }
.site-backdrop-paint::before { background: radial-gradient(ellipse at 17% 22%, #a6b8ff75, #cbd6ff3d 36%, #cbd6ff00 67%), radial-gradient(ellipse at 91% 80%, #a8bbff47, #a8bbff00 55%); }
.site-backdrop-paint::after { background: radial-gradient(ellipse at 86% 62%, #ffbd8970, #ffe0c938 36%, #ffe0c900 66%); }
.shell { width: min(1240px, calc(100% - 100px)); max-width: 1240px; }
.skip-link:focus-visible { position: fixed; top: calc(8px + env(safe-area-inset-top, 0px)); left: calc(8px + env(safe-area-inset-left, 0px)); z-index: 100; border-radius: 12px; }
.calc-header-shell { position: sticky; top: 0; z-index: 30; padding-top: env(safe-area-inset-top, 0px); isolation: isolate; }
.calc-header-shell::before { content: ""; position: absolute; inset: 0; z-index: -1; background: linear-gradient(105deg, #eef0fff2, #fff7edf2); transition: background .3s; }
.calc-header-shell.is-scrolled::before { background: #f6f5f1d9; backdrop-filter: blur(18px); -webkit-backdrop-filter: blur(18px); }
.calc-header { height: 100px; }
.calc-header .brand { gap: 10px; min-height: 48px; }
.calc-header .brand-logo { width: 46px; height: 48px; flex-shrink: 0; }
.brand-name { font-size: 30px; font-weight: 800; line-height: 1.05; letter-spacing: -1.1px; white-space: nowrap; }
.brand-name > span { display: block; margin-top: 5px; font-size: 11px; font-weight: 500; line-height: 1.2; letter-spacing: 2.8px; text-transform: uppercase; color: var(--muted); }
.header-caption { display: flex; align-items: center; gap: 9px; padding: 11px 19px; border-radius: 100px; background: #fff9; }
.header-caption > span { width: 6px; height: 6px; border-radius: 50%; background: var(--apricot); }
.back-link { font-size: 13px; font-weight: 550; }
.back-link > span:last-child { width: 44px; height: 44px; background: #fff6; transition: transform .3s var(--ease), background .3s; }
.back-link:hover > span:last-child { transform: rotate(45deg); background: #fffdf9; }
.intro { display: grid; grid-template-columns: 1.2fr 1fr; align-items: center; gap: 45px; padding: 48px 0 46px; }
.intro-copy-block { min-width: 0; }
.eyebrow { font-size: 11px; letter-spacing: 1.2px; font-weight: 600; color: #52617e; margin-bottom: 25px; }
.eyebrow > span { width: 27px; height: 2px; background: #d76b39; }
h1 { font-size: clamp(58px, 6.25vw, 88px); font-weight: 650; line-height: 1.04; letter-spacing: -.058em; }
h1 em { display: block; width: fit-content; padding-bottom: 5px; margin-top: 17px; font-size: .565em; font-weight: 600; letter-spacing: -.045em; line-height: 1.2; color: #3c58df; background: linear-gradient(100deg, #3450d2, #6674ea); background-clip: text; -webkit-background-clip: text; -webkit-text-fill-color: transparent; }
.intro-copy { max-width: 490px; margin-top: 23px; font-size: 16px; line-height: 1.8; color: #53617a; }
.intro-assurance { padding-left: 14px; margin: 22px 0 0; border-left: 2px solid #e0b89d; font-size: 12px; line-height: 1.75; color: #657089; }
/* A compact product composition echoes the device stage on the home page. */
.intro-scene { height: 420px; position: relative; min-width: 0; }
.scene-kicker, .scene-caption { position: absolute; inset: 0 0 auto; text-align: center; font-size: 9px; letter-spacing: 1px; color: #65738d; }
.scene-caption { inset: auto 0 0; letter-spacing: 0; font-size: 11px; }
.scene-orbit { position: absolute; inset: 55px 25px 36px; border: 1px solid #c5cbea66; border-radius: 50%; transform: rotate(-21deg); background: linear-gradient(135deg, #acbaff26, #ffbf9140); overflow: hidden; }
.scene-orbit::after { content: ""; position: absolute; inset: 20px -20px; border: 1px solid #fff9; border-radius: 50%; transform: rotate(30deg); }
.scene-phone { width: 210px; height: 352px; position: absolute; left: 50%; top: 32px; margin-left: -105px; padding: 34px 15px 16px; border: 5px solid #fefdfb; outline: 1px solid #b8becd; border-radius: 31px; background: #f9faff; box-shadow: 3px 5px 0 #c1c6d2, 8px 18px 38px #182b5120; transform: rotate(-8deg); }
.scene-camera { position: absolute; top: 10px; left: 50%; width: 50px; height: 9px; border-radius: 20px; background: var(--ink); transform: translateX(-50%); }
.scene-app-brand { display: flex; align-items: center; gap: 5px; font-size: 9px; font-weight: 700; }
.scene-app-brand img { object-fit: contain; }
.scene-app-brand > span { margin-left: auto; color: var(--blue); }
.scene-app-title { font-size: 19px; font-weight: 650; letter-spacing: -.7px; line-height: 1.3; margin: 17px 0 14px; }
.scene-app-title > span { font-size: 13px; color: var(--muted); letter-spacing: -.2px; }
.scene-app-banner { border-radius: 13px; padding: 12px; color: white; background: linear-gradient(120deg, #405de9, #687cf4); }
.scene-app-banner > span { font-size: 6px; letter-spacing: 1px; display: block; opacity: .8; }
.scene-app-banner strong { font-size: 13px; font-weight: 550; display: block; margin-top: 6px; }
.scene-banner-lines { display: flex; gap: 4px; margin-top: 11px; }
.scene-banner-lines i { display: block; height: 4px; background: #ffffff80; border-radius: 4px; width: 45%; }
.scene-banner-lines i:last-child { width: 25%; opacity: .5; }
.scene-app-tiles { display: flex; justify-content: space-between; gap: 7px; margin: 12px 0; font-size: 7px; }
.scene-app-tiles > span { flex: 1; text-align: center; border: 1px solid #e4e8f2; padding: 6px 2px; border-radius: 10px; background: #fff; }
.scene-app-tiles b { display: block; font-size: 17px; line-height: 1.3; color: var(--blue); font-weight: 500; }
.scene-app-line { width: 90%; height: 5px; background: #e7eaf4; border-radius: 8px; margin-bottom: 6px; }
.scene-app-line.short { width: 60%; }
.scene-app-button { display: flex; justify-content: space-between; margin-top: 14px; padding: 8px 11px; border-radius: 30px; background: #ffe6d5; font-size: 8px; color: #925333; }
.scene-home { position: absolute; width: 53px; height: 3px; border-radius: 8px; bottom: 7px; left: 50%; margin-left: -26px; background: #c7cbd8; }
.scene-module { position: absolute; display: flex; align-items: center; gap: 10px; padding: 14px 16px; background: #fffdf9ed; border: 1px solid #fff; border-radius: 17px; box-shadow: 0 12px 30px #2c355a12; }
.scene-payment { left: -6px; top: 101px; transform: rotate(-4deg); }
.scene-integration { right: -4px; bottom: 80px; transform: rotate(5deg); }
.scene-module-icon { display: grid; place-items: center; width: 34px; height: 34px; background: #ffe3cc; color: #9d542a; border-radius: 12px; font-size: 20px; }
.scene-integration .scene-module-icon { background: #e9edff; color: var(--blue); }
.scene-module strong { display: block; font-size: 11px; font-weight: 650; }
.scene-module small { font-size: 8px; color: var(--muted); }
.scene-module > b { color: #798b77; font-size: 12px; margin-left: 4px; }
.scene-phone, .scene-module { animation: scene-build 850ms var(--ease) both; }
.scene-payment { animation-delay: 160ms; }
.scene-integration { animation-delay: 280ms; }
@keyframes scene-build { from { opacity: .3; translate: 0 18px; } to { opacity: 1; translate: 0 0; } }
.steps { position: relative; justify-content: space-between; padding: 24px 0; margin-bottom: 48px; gap: 20px; border-color: #cbd2e4; font-size: 13px; }
.steps::after { content: ""; position: absolute; left: 0; right: 0; bottom: -1px; height: 1px; background: linear-gradient(90deg, #4665ff00, #7088ff, #ff9659, #ff965900); }
.steps a { gap: 12px; color: #596680; }
.steps span { width: 34px; height: 34px; border: 1px solid #c4cde3; border-radius: 50%; display: grid; place-items: center; color: #65718d; background: #fff6; font-size: 11px; transition: background .25s, color .25s, border-color .25s; }
.steps a[aria-current="step"] { color: var(--ink); }
.steps a[aria-current="step"] span { background: var(--blue); border-color: var(--blue); color: #fff; }
.section-heading { margin-bottom: 26px; }
.section-number { font-size: 11px; font-weight: 600; letter-spacing: 1.3px; }
.section-heading h2, .finishing h2 { margin-top: 10px; font-size: clamp(26px, 2.7vw, 35px); font-weight: 600; line-height: 1.25; letter-spacing: -1.1px; }
.quiet-label { font-size: 12px; max-width: 230px; text-align: right; line-height: 1.7; }
.format-grid { gap: 16px; }
.format-card { transition: translate .35s var(--ease); }
.format-card-content { padding: 26px; border: 1px solid #ccd4e7; border-radius: 24px; background: linear-gradient(135deg, #fffefdde, #f2f5ffe0); transition: background .3s, border-color .3s, box-shadow .3s; }
.format-icon { width: 44px; height: 44px; align-items: center; justify-content: center; background: #e9edff; border-radius: 14px; margin-bottom: 17px; transition: background .3s, color .3s; }
.format-card h3 { font-size: 17px; font-weight: 650; }
.format-card p { font-size: 12px; max-width: 290px; }
.format-price { font-size: 25px; margin-top: 22px; flex-wrap: wrap; gap: 4px 8px; }
.format-price small { font-size: 10px; }
.format-card > input { top: 30px; right: 26px; width: 20px; height: 20px; }
.format-card > input:checked { border-color: #fff; background: var(--blue); }
.format-card > input:checked + .format-card-content { background: #4665ff; color: #fff; border-color: #4665ff; box-shadow: 0 12px 30px #4665ff26; }
.format-card > input:checked + .format-card-content p, .format-card > input:checked + .format-card-content small { color: #fff; }
.format-card > input:checked + .format-card-content .format-icon { color: #fff; background: #ffffff26; }
.base-details { font-size: 12px; margin-bottom: 48px; padding-block: 20px; }
.base-details summary { min-height: 28px; }
.inline-check { background: #ffe4d0; color: #875233; }
.workspace { grid-template-columns: minmax(0, 1fr) 354px; gap: 34px; }
.small-label { font-size: 12px; }
.preset-list { gap: 8px; }
.preset-button { border-radius: 999px; padding: 11px 16px; font-size: 12px; min-height: 42px; background: #fff9; transition: background .25s, color .25s, border-color .25s, transform .25s var(--ease); }
.preset-button[aria-pressed="true"] { background: var(--ink); border-color: var(--ink); }
.preset-hint { font-size: 11px; }
.search-field { padding: 13px 16px; border-radius: 16px; border-color: #cbd4e5; background: #fff9; }
.search-field input { font-size: 14px; }
.search-count { font-size: 11px; }
.category-filters { gap: 4px; margin-top: 13px; }
.category-filter { font-size: 12px; border-radius: 30px; min-height: 38px; padding: 8px 13px; transition: background .25s, color .25s; }
.category-filter[aria-pressed="true"] { background: #4665ff; color: white; }
.feature-group { margin-top: 34px; }
.group-heading { padding-bottom: 13px; border-bottom: 1px solid #cdd5e7; margin-bottom: 14px; }
.group-heading h3 { font-size: 17px; font-weight: 600; letter-spacing: -.4px; }
.group-heading > span { font-size: 10px; white-space: nowrap; }
.feature-grid { gap: 12px; }
.feature-card { border-radius: 20px; background: linear-gradient(135deg, #fffefdde, #f2f5ffe0); border-color: #d1d9e9; transition: border-color .25s, background .25s, box-shadow .25s, transform .3s var(--ease); }
.feature-card.is-selected { background: linear-gradient(135deg, #f4f6ff, #e9edff); border-color: #879cf8; box-shadow: inset 0 0 0 1px #4665ff18; }
.feature-select { padding: 20px 18px 15px; gap: 12px; grid-template-columns: 1fr 22px; }
.feature-select strong { font-size: 14px; line-height: 1.45; font-weight: 650; }
.feature-description { font-size: 12px; line-height: 1.7; }
.feature-price { font-size: 15px; font-weight: 650; color: #344fc7; margin-top: 16px; }
.feature-select input { width: 22px; height: 22px; border-radius: 50%; }
.feature-detail { padding-inline: 18px; border-color: #d8dfed; }
.feature-detail summary { font-size: 11px; min-height: 40px; }
.feature-detail summary > span { font-size: 19px; transition: transform .3s var(--ease); }
.feature-detail[open] summary > span { transform: rotate(45deg); }
.feature-detail p { font-size: 12px; padding-bottom: 5px; }
.dependency-note { padding-inline: 18px; font-size: 10px; }
.estimate-column { top: calc(122px + env(safe-area-inset-top, 0px)); scroll-margin-top: 0; }
.estimate-card { padding: 25px 24px; border-radius: 26px; background: linear-gradient(145deg, #fffdf9f5, #f8f9fff5); border-color: #fff; box-shadow: 0 12px 50px #263d7020; }
.estimate-card h2 { font-size: 28px; letter-spacing: -1px; }
.total-block { margin-top: 19px; padding: 20px; border: 1px solid #d8dff7; border-radius: 18px; background: linear-gradient(120deg, #e9eeff, #f2efff); }
.total-block > strong { font-size: 35px; font-weight: 650; font-variant-numeric: tabular-nums; letter-spacing: -1.4px; color: #3c58df; }
.total-block > span { font-size: 11px; }
.total-block p { font-size: 10px; }
.timeline { margin-top: 17px; border-top: 0; }
.timeline-dot { background: var(--apricot); }
.basket-row { padding-block: 11px; }
.basket-row small { font-size: 10px; }
.basket-base { padding-top: 4px; }
.basket-remove { border-radius: 50%; background: #e9edf5; color: #6f7c96; }
.basket-remove:hover { background: #ffe5db; color: #a43a27; }
.primary-button { border-radius: 999px; background: linear-gradient(105deg, #d73516, #c65315); background-size: 140% 100%; font-size: 13px; font-weight: 550; padding: 16px 21px; min-height: 54px; transition: background-position .3s, box-shadow .3s, transform .3s var(--ease); }
.primary-button:hover { background: linear-gradient(105deg, #d73516, #c65315); background-position: 100% 0; box-shadow: 0 8px 20px #bf4d1924; }
.primary-button > span { transition: transform .3s var(--ease); }
.primary-button:hover > span { transform: translate(3px, -3px); }
.estimate-actions { gap: 7px; margin-top: 13px; }
.estimate-actions > button { min-height: 42px; border-radius: 30px; background: #fff6; }
.estimate-footnote { color: #65718a; font-size: 10px; }
.chevron { display: inline-block; transition: transform .3s var(--ease); }
[open] > summary > .chevron { transform: rotate(180deg); }
.finishing { margin-top: 45px; padding-top: 35px; }
.design-options label, .support-option { border-radius: 18px; padding: 19px; background: #fff9; transition: background .25s, border-color .25s; }
.design-options label:has(input:checked), .support-option:has(input:checked) { background: #eef1ff; border-color: #98a9ed; }
.design-options strong, .support-option strong { font-size: 14px; }
.design-options small, .support-option small { font-size: 12px; }
.design-options label > b, .support-option > b { font-size: 12px; }
.methodology { margin-top: 40px; padding-top: 35px; }
.method-mark { background: #ffe4d0; color: #875233; border-radius: 50%; width: 44px; height: 44px; }
.methodology h2 { font-size: 20px; letter-spacing: -.5px; }
.methodology p { font-size: 13px; }
.methodology summary { font-size: 12px; }
.custom-note { border-radius: 22px; background: #fff2e8b3; border: 1px solid #efdace; padding: 24px; }
.custom-note > span { color: #b86b3c; }
.custom-note h3 { font-size: 15px; }
.custom-note p { font-size: 12px; }
.text-link { font-size: 12px; }
.calc-footer { margin-top: 65px; padding-block: 32px 40px; font-size: 12px; }
.calc-footer .brand small { color: var(--muted); }
.toast { border-radius: 18px; background: var(--ink); box-shadow: 0 12px 30px #091a4329; transition: opacity .3s, transform .4s var(--ease); }
dialog { border-radius: 26px; background: var(--paper); border-color: #fff; }
dialog h2 { font-weight: 600; }
dialog::backdrop { background: #091a4359; }
@media (hover: hover) and (pointer: fine) {
  .format-card:hover { translate: 0 -4px; }
  .feature-card:hover { transform: translateY(-3px); border-color: #98aaec; box-shadow: 0 8px 24px #18305c0c; }
  .preset-button:hover { transform: translateY(-2px); }
  .primary-button:hover { transform: translateY(-2px); }
}
@media (min-width: 761px) { .estimate-card { max-height: calc(100svh - 144px - env(safe-area-inset-top, 0px)); } }
@media (max-width: 1150px) {
  .shell { width: calc(100% - 64px); }
  .intro { gap: 25px; }
  .intro-scene { height: 390px; }
  .scene-payment { left: -5px; top: 91px; }
  .scene-integration { right: -8px; bottom: 65px; }
  .scene-module { padding: 11px; gap: 7px; }
  .scene-module small { font-size: 7px; }
  .scene-phone { top: 30px; }
  .workspace { grid-template-columns: minmax(0, 1fr) 326px; gap: 24px; }
  .estimate-card { padding: 23px 20px; }
  .total-block { padding: 16px; }
  .total-block > strong { font-size: 32px; }
  .feature-select { padding: 17px 15px 13px; }
  .feature-detail { padding-inline: 15px; }
  .format-card-content { padding: 23px 20px; }
  .format-card > input { right: 21px; top: 27px; }
  .format-card h3 { font-size: 16px; }
  .format-price { font-size: 22px; }
}
@media (max-width: 960px) {
  .shell { width: calc(100% - 44px); }
  .header-caption { display: none; }
  .intro { grid-template-columns: 1.25fr 1fr; gap: 20px; }
  h1 { font-size: 64px; }
  .intro-scene { height: 350px; }
  .scene-phone { transform: rotate(-8deg) scale(.85); top: 2px; }
  .scene-module { padding: 9px 11px; }
  .scene-module strong { font-size: 9px; }
  .scene-module small { display: none; }
  .scene-module-icon { width: 28px; height: 28px; font-size: 17px; }
  .scene-payment { left: 0; top: 90px; }
  .scene-integration { bottom: 61px; right: -4px; }
  .scene-caption { font-size: 9px; }
  .intro-copy { font-size: 14px; }
  .workspace { grid-template-columns: minmax(0, 1fr) 310px; gap: 22px; }
  .format-card h3 { font-size: 15px; }
  .format-card p { font-size: 11px; }
  .format-price { font-size: 21px; }
  .category-filter { padding: 8px 11px; font-size: 11px; }
}
@media (max-width: 800px), (pointer: coarse) {
  .site-backdrop { position: absolute; }
  .site-backdrop-paint { top: calc(var(--backdrop-page-y, 0px) - 80px); bottom: auto; height: calc(100lvh + 160px); }
  .site-backdrop::after { content: ""; position: absolute; inset: auto 0 0; height: 160px; background: linear-gradient(transparent, var(--canvas-color)); }
  .calc-header-shell::before { top: calc(-1 * env(safe-area-inset-top, 0px)); }
}
@media (max-width: 760px) {
  html { scroll-padding-top: calc(104px + env(safe-area-inset-top, 0px)); }
  .calc-header { height: 82px; }
  .calc-header .brand-logo { width: 38px; height: 40px; }
  .brand-name { font-size: 26px; letter-spacing: -.9px; }
  .brand-name > span { font-size: 9px; letter-spacing: 2.5px; margin-top: 4px; }
  .back-link { font-size: 12px; }
  .intro { padding: 34px 0; grid-template-columns: 1fr; }
  .intro-scene { display: none; }
  h1 { font-size: clamp(48px, 9vw, 66px); }
  h1 em { font-size: .62em; margin-top: 12px; }
  .eyebrow { font-size: 10px; letter-spacing: .8px; margin-bottom: 22px; }
  .intro-copy { font-size: 15px; }
  .intro-assurance { font-size: 11px; margin-top: 18px; }
  .steps { padding-block: 20px; margin-bottom: 34px; font-size: 11px; gap: 14px; }
  .steps span { width: 29px; height: 29px; font-size: 10px; }
  .steps a { gap: 8px; }
  .section-number { font-size: 10px; }
  .section-heading h2, .finishing h2 { font-size: 27px; letter-spacing: -.9px; }
  .format-grid { gap: 10px; }
  .format-card-content { padding: 19px 16px; border-radius: 20px; }
  .format-card > input { top: 23px; right: 17px; width: 18px; height: 18px; }
  .format-icon { width: 35px; height: 35px; border-radius: 11px; }
  .format-card h3 { font-size: 14px; }
  .format-price { font-size: 20px; }
  .format-price small { font-size: 9px; }
  .base-details { margin-bottom: 34px; font-size: 12px; }
  .workspace { display: block; }
  .feature-select strong { font-size: 14px; }
  .feature-description { font-size: 12px; }
  .search-field input { font-size: 16px; }
  .search-count { font-size: 10px; }
  .estimate-column { margin-top: 36px; scroll-margin-top: 0; }
  .estimate-card { padding: 27px 24px; border-radius: 26px; }
  .total-block { padding: 22px; }
  .total-block > strong { font-size: 40px; }
  .total-block p { font-size: 12px; }
  .primary-button { font-size: 14px; }
  .basket-row { font-size: 13px; }
  .basket-row > b { font-size: 13px; }
  .basket-remove { width: 30px; min-height: 30px; }
  .mobile-total { border-radius: 22px; padding: 11px 12px 11px 17px; background: #fffdf9ef; border-color: #fff; box-shadow: 0 8px 35px #182c6729; }
  .mobile-total > div > span { font-size: 10px; }
  .mobile-total strong { font-size: 17px; font-variant-numeric: tabular-nums; }
  .mobile-total > a { border-radius: 100px; padding: 12px 15px; }
  .mobile-total a > span:not(:empty) { border-radius: 20px; }
  .calc-footer { margin-top: 40px; padding-bottom: 115px; font-size: 11px; }
}
@media (max-width: 520px) {
  .shell { width: calc(100% - 36px); }
  .steps a { display: block; line-height: 1.5; flex: 1; }
  .steps span { margin-bottom: 9px; }
  .steps { font-size: 11px; gap: 15px; align-items: flex-start; }
  .format-grid { grid-template-columns: 1fr; }
  .format-card-content { display: grid; grid-template-columns: 39px minmax(0, 1fr) auto; gap: 0 12px; padding: 19px 17px; }
  .format-icon { grid-row: 1/3; margin: 0; width: 36px; height: 36px; align-self: center; }
  .format-card h3 { grid-column: 2; min-height: 0; margin: 0 20px 4px 0; font-size: 14px; line-height: 1.45; }
  .format-card p { grid-column: 2; min-height: 0; max-width: 220px; font-size: 11px; }
  .format-price { display: block; grid-column: 3; grid-row: 1/3; align-self: end; margin: 0; text-align: right; font-size: 17px; }
  .format-price small { display: block; font-size: 10px; margin-top: 3px; }
  .format-card > input { top: 16px; right: 18px; width: 16px; height: 16px; }
  .feature-grid { grid-template-columns: 1fr; }
  .feature-select { padding: 20px 20px 15px; grid-template-columns: 1fr 24px; gap: 18px; }
  .feature-select strong { font-size: 15px; }
  .feature-select input { width: 23px; height: 23px; }
  .feature-description { font-size: 13px; margin-top: 7px; }
  .feature-price { font-size: 16px; margin-top: 13px; }
  .feature-detail { padding-inline: 20px; }
  .feature-detail summary { font-size: 12px; min-height: 42px; }
  .feature-detail p { font-size: 12px; }
  .dependency-note { padding-inline: 20px; font-size: 11px; }
  .group-heading h3 { font-size: 16px; }
  .preset-button { font-size: 12px; padding: 10px 14px; }
  .category-filter { font-size: 11px; padding: 8px 12px; }
  .section-heading h2, .finishing h2 { font-size: 26px; }
  .design-options label, .support-option { padding: 17px 14px; gap: 10px; }
  .design-options strong, .support-option strong { font-size: 13px; }
  .design-options small, .support-option small { font-size: 11px; }
  .design-options label > b, .support-option > b { font-size: 11px; }
  .methodology { gap: 13px; }
  .methodology h2 { font-size: 19px; }
  .methodology p { font-size: 12px; }
  .custom-note { padding: 20px; }
  .estimate-card { padding: 24px 20px; }
  .total-block { padding: 18px 16px; }
  .total-block > strong { font-size: 36px; }
  .total-block p { font-size: 11px; }
}
@media (max-width: 360px) {
  .calc-header .brand-logo { width: 32px; height: 34px; }
  .brand-name { font-size: 24px; }
  .intro .eyebrow { font-size: 9px; letter-spacing: .4px; gap: 8px; }
  h1 { font-size: 44px; }
  .intro-copy { font-size: 14px; }
  .format-card-content { grid-template-columns: 30px minmax(0, 1fr) auto; column-gap: 9px; padding-inline: 13px; }
  .format-icon { width: 29px; height: 32px; }
  .format-card h3 { font-size: 12px; margin-right: 5px; }
  .format-card p { font-size: 10px; }
  .format-price { font-size: 15px; }
  .format-card > input { right: 14px; }
  .section-heading h2, .finishing h2 { font-size: 24px; }
  .group-heading { gap: 8px; }
  .group-heading h3 { font-size: 15px; }
  .group-heading > span { font-size: 9px; }
  .mobile-total { padding-left: 12px; gap: 6px; }
  .mobile-total strong { font-size: 15px; }
  .mobile-total > a { padding-inline: 11px; font-size: 11px; }
  .total-block { padding-inline: 12px; }
  .total-block > strong { font-size: 32px; }
  .total-block p { font-size: 10px; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
  .format-card:hover { translate: none; }
  .feature-card:hover, .preset-button:hover, .primary-button:hover { transform: none; }
}
@media print {
  .site-backdrop, .calc-header-shell { display: none !important; }
  html, body { background: #fff; }
}
@media (forced-colors: active) {
  h1 em { background: none; -webkit-text-fill-color: CanvasText; }
  .format-card > input, .feature-select input { appearance: auto; }
}

/* Two core choices are included in every base format. */
.included-offer { display:flex; align-items:flex-start; gap:16px; padding:21px; margin:0 0 25px; border:1px solid #cbd5fa; border-radius:22px; background:linear-gradient(120deg,#e9eeffe8,#fff6edcf); }
.included-offer-number { display:grid; place-items:center; flex-shrink:0; width:45px; height:45px; border-radius:50%; background:var(--blue); color:white; font-size:25px; line-height:1; font-weight:650; }
.included-offer strong { display:block; font-size:16px; line-height:1.4; letter-spacing:-.35px; }
.included-offer p { color:var(--muted); font-size:12px; line-height:1.7; margin:7px 0 9px; }
#included-progress { display:inline-block; font-size:11px; font-weight:600; color:#344fc7; }
.included-summary { font-size:11px; line-height:1.7; color:#344fc7; margin:12px 0 0; }
.included-summary strong { display:block; font-weight:600; white-space:nowrap; }
.feature-eligible { display:block; font-size:10px; line-height:1.5; color:var(--muted); margin-top:5px; font-weight:450; }
.feature-price.included-price del { display:block; font-size:11px; font-weight:450; color:var(--muted); text-decoration-thickness:1px; margin-bottom:2px; }
.feature-price.included-price > span { display:block; font-size:13px; line-height:1.5; }
.basket-row .included-label { color:#344fc7; }
.basket-included > b { color:#344fc7; }
@media(max-width:520px) { .included-offer{padding:18px 16px;gap:12px}.included-offer-number{width:37px;height:37px;font-size:22px}.included-offer strong{font-size:15px}.included-offer p{font-size:12px}.included-summary{font-size:12px}.feature-eligible{font-size:11px}.feature-price.included-price > span{font-size:14px} }