/* ═══════════════════════════════════════════════════════════════════════
   ecomit: Build Cart calculator (Calculator Plan §8)
   Desktop: steps left + sticky cart right. Mobile: full-width steps + bottom cart bar/sheet.
   ═══════════════════════════════════════════════════════════════════════ */

.calc-hero { padding-bottom: clamp(28px, 4vw, 48px); }
.calc-hero { padding-top: calc(var(--nav-h) + clamp(48px, 6vw, 84px)); }
.calc-hero h1 { margin-top: 1rem; max-width: 22ch; font-size: clamp(2.2rem, 4.6vw, 3.8rem); }
.calc-hero .lede { margin-top: 1.2rem; }
.calc-hero .cluster { margin-top: 1.6rem; }

.calc { display: grid; grid-template-columns: minmax(0, 1fr) 400px; gap: clamp(16px, 2.4vw, 32px); align-items: start; padding-bottom: clamp(60px, 8vw, 110px); }
@media (max-width: 1080px) { .calc { grid-template-columns: minmax(0, 1fr) 360px; } }

/* progress rail shaped like a checkout */
.rail { display: flex; align-items: center; gap: 6px; margin-bottom: 18px; overflow-x: auto; scrollbar-width: none; padding: 2px; }
.rail::-webkit-scrollbar { display: none; }
.rail__item { flex: none; display: inline-flex; align-items: center; gap: .5rem; height: 36px; padding: 0 .85rem 0 .45rem; border-radius: 999px; border: 1px solid var(--line); font-size: .8rem; font-weight: 600; color: var(--muted); background: var(--glass-1); transition: all .3s var(--ease); }
.rail__item i { width: 24px; height: 24px; border-radius: 50%; display: grid; place-items: center; font-style: normal; font-size: .7rem; background: var(--glass-2); color: var(--text-2); transition: all .3s; }
.rail__item.is-done { color: var(--text-2); }
.rail__item.is-done i { background: var(--dot); color: #fff; }
.rail__item.is-current { color: var(--text); border-color: var(--purple-line); background: var(--glass-purple); }
.rail__item.is-current i { background: var(--text); color: var(--bg); }
.rail__sep { flex: none; width: 14px; height: 1px; background: var(--line-2); }
.rail__item[hidden] + .rail__sep { display: none; }

.calc-step { padding: clamp(22px, 3vw, 36px); }
.calc-step__head { display: flex; align-items: flex-start; justify-content: space-between; gap: 1rem; margin-bottom: 1.6rem; }
.calc-step__head h2 { font-size: clamp(1.5rem, 2.4vw, 2rem); letter-spacing: -.035em; line-height: 1.15; font-weight: 600; outline: none; }
.calc-step__head p { color: var(--muted); margin-top: .4rem; font-size: .95rem; }
.calc-step__count { flex: none; font-size: .78rem; font-weight: 600; color: var(--muted); font-variant-numeric: tabular-nums; padding-top: .4rem; }
.calc-step__body.is-entering { animation: fade-up .45s var(--ease); }
.calc-step__body > * + * { margin-top: 1.8rem; }
.calc-nav { display: flex; align-items: center; justify-content: space-between; gap: .75rem; margin-top: 2rem; padding-top: 1.4rem; border-top: 1px solid var(--line); }
.calc-sub { font-size: .8rem; font-weight: 600; letter-spacing: .1em; text-transform: uppercase; color: var(--muted); margin-bottom: .85rem; display: flex; align-items: center; gap: .55rem; }
.calc-sub .ico { width: 17px; height: 17px; color: var(--text); }

/* choice cards (radio / checkbox) */
.choices { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 10px; }
.choices--2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.choices--4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.choices--compact { grid-template-columns: repeat(auto-fill, minmax(132px, 1fr)); }
@media (max-width: 760px) { .choices, .choices--4 { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 420px) { .choices:not(.choices--compact) { grid-template-columns: minmax(0, 1fr); } }
.choice { position: relative; display: block; }
.choice > input { position: absolute; inset: 0; opacity: 0; z-index: 2; cursor: pointer; margin: 0; }
.choice__card {
  position: relative; height: 100%; display: flex; flex-direction: column; gap: .3rem;
  padding: 16px; border-radius: 16px; border: 1px solid var(--line-2); background: var(--glass-1);
  transition: border-color .2s, background .2s, transform .25s var(--ease);
}
.choice__card .chip { margin-bottom: .7rem; }
.choice__card b { font-size: .98rem; font-weight: 600; letter-spacing: -.012em; line-height: 1.3; }
.choice__card small { font-size: .82rem; color: var(--muted); line-height: 1.45; }
.choice__price { margin-top: auto; padding-top: .7rem; font-size: .8rem; font-weight: 600; color: var(--text-2); font-variant-numeric: tabular-nums; }
.choice__check { position: absolute; top: 12px; right: 12px; width: 20px; height: 20px; border-radius: 50%; border: 1.5px solid var(--line-2); transition: all .2s; display: grid; place-items: center; }
.choice__check::after { content: ""; width: 8px; height: 8px; border-radius: 50%; background: #fff; transform: scale(0); transition: transform .25s var(--ease); }
.choice input[type="checkbox"] ~ .choice__card .choice__check { border-radius: 7px; }
.choice input:hover ~ .choice__card { border-color: var(--border-hover); }
.choice input:checked ~ .choice__card { border-color: var(--purple-line); background: var(--glass-purple); }
.choice input:checked ~ .choice__card .choice__check { background: var(--purple-600); border-color: var(--purple-600); }
.choice input:checked ~ .choice__card .choice__check::after { transform: scale(1); }
.choice input:focus-visible ~ .choice__card { box-shadow: 0 0 0 3px var(--ring); }
.choice input:active ~ .choice__card { transform: scale(.985); }
.choice--small .choice__card { padding: 12px 14px; flex-direction: row; align-items: center; gap: .6rem; min-height: 54px; }
.choice--small .choice__card b { font-size: .9rem; }
.choice--small .choice__check { position: static; margin-left: auto; flex: none; width: 18px; height: 18px; }
.choice__logo { height: 22px; width: auto; margin-bottom: .6rem; }

/* features grid with qty steppers */
.feat-group + .feat-group { margin-top: 1.8rem; }
.feat-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; }
@media (max-width: 640px) { .feat-grid { grid-template-columns: minmax(0, 1fr); } }
.feat .choice__card { flex-direction: row; gap: .85rem; align-items: flex-start; padding: 14px 44px 14px 14px; }
.feat .choice__card .chip { margin: 0; }
.feat .choice__card > span:not(.chip):not(.choice__check) { display: grid; gap: .15rem; min-width: 0; }
.feat .choice__price { padding-top: .25rem; margin: 0; }
.stepper { position: relative; z-index: 3; display: inline-flex; align-items: center; gap: 2px; margin-top: .55rem; padding: 3px; border-radius: 11px; background: var(--glass-2); border: 1px solid var(--line-2); width: max-content; }
.stepper button { width: 30px; height: 30px; border-radius: 8px; display: grid; place-items: center; color: var(--text); }
.stepper button:hover { background: var(--glass-3); }
.stepper button .ico { width: 15px; height: 15px; }
.stepper output, .stepper input { min-width: 2.4rem; text-align: center; font-weight: 600; font-size: .88rem; font-variant-numeric: tabular-nums; background: none; border: 0; color: var(--text); }
.stepper input { width: 4.2rem; -moz-appearance: textfield; }
.stepper input::-webkit-outer-spin-button, .stepper input::-webkit-inner-spin-button { -webkit-appearance: none; margin: 0; }
.stepper input:focus { outline: none; }

/* content rows */
.content-rows { display: grid; gap: 10px; }
.crow { display: grid; grid-template-columns: auto minmax(0, 1fr) auto; gap: 14px; align-items: center; padding: 14px 16px; border-radius: 16px; border: 1px solid var(--line-2); background: var(--glass-1); transition: border-color .2s, background .2s; }
.crow.is-on { border-color: var(--purple-line); background: var(--glass-purple); }
.crow b { font-size: .95rem; font-weight: 600; display: block; }
.crow small { display: block; font-size: .8rem; color: var(--muted); }
.crow .price { font-size: .78rem; font-weight: 600; color: var(--text-2); margin-top: .2rem; display: block; }
.crow__ctrl { display: flex; flex-direction: column; align-items: flex-end; gap: 6px; }
.quick { display: flex; gap: 4px; }
.quick button { height: 26px; padding: 0 .55rem; border-radius: 8px; font-size: .72rem; font-weight: 600; color: var(--muted); border: 1px solid var(--line); }
.quick button:hover { color: var(--text); border-color: var(--border-hover); }
@media (max-width: 560px) { .crow { grid-template-columns: auto minmax(0, 1fr); } .crow__ctrl { grid-column: 1 / -1; flex-direction: row; justify-content: space-between; align-items: center; } }

.switch { position: relative; display: inline-flex; width: 46px; height: 28px; flex: none; }
.switch input { position: absolute; inset: 0; opacity: 0; margin: 0; cursor: pointer; z-index: 1; }
.switch span { position: absolute; inset: 0; border-radius: 999px; background: var(--glass-3); border: 1px solid var(--line-2); transition: background .25s; }
.switch span::after { content: ""; position: absolute; top: 3px; left: 3px; width: 20px; height: 20px; border-radius: 50%; background: var(--text); transition: transform .3s var(--ease); }
.switch input:checked + span { background: var(--purple-600); border-color: var(--purple-600); }
.switch input:checked + span::after { transform: translateX(18px); background: #fff; }
.switch input:focus-visible + span { box-shadow: 0 0 0 3px var(--ring); }

/* range slider */
.slider-row { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 16px; align-items: center; }
.range { -webkit-appearance: none; appearance: none; width: 100%; height: 6px; border-radius: 6px; background: linear-gradient(90deg, var(--dot) 0 var(--fill, 20%), var(--glass-3) var(--fill, 20%) 100%); outline: none; }
.range::-webkit-slider-thumb { -webkit-appearance: none; width: 24px; height: 24px; border-radius: 50%; background: var(--text); border: 4px solid var(--bg); box-shadow: 0 0 0 1px var(--line-2), 0 4px 12px rgba(0,0,0,0.4); cursor: grab; }
.range::-moz-range-thumb { width: 18px; height: 18px; border-radius: 50%; background: var(--text); border: 4px solid var(--bg); cursor: grab; }
.range:focus-visible::-webkit-slider-thumb { box-shadow: 0 0 0 4px var(--ring); }
.big-num { font-size: 2.4rem; font-weight: 600; letter-spacing: -.05em; line-height: 1; font-variant-numeric: tabular-nums; }

/* platform helper */
.helper { border-radius: 18px; border: 1px solid var(--purple-line); background: linear-gradient(180deg, rgba(91,63,217,0.12), transparent 70%), var(--glass-1); padding: 20px; }
.helper__q { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 12px; align-items: center; padding: 12px 0; border-top: 1px solid var(--line); }
.helper__q:first-of-type { border-top: 0; }
.helper__q > span { font-size: .92rem; font-weight: 550; }
.helper .segmented button { height: 34px; font-size: .8rem; white-space: nowrap; }
.helper__result { margin-top: 14px; padding: 16px; border-radius: 14px; background: var(--glass-2); display: flex; align-items: center; justify-content: space-between; gap: 1rem; flex-wrap: wrap; }
.helper__result b { font-size: 1.05rem; }
@media (max-width: 640px) { .helper__q { grid-template-columns: minmax(0, 1fr); } .helper .segmented { width: 100%; } .helper .segmented button { flex: 1; justify-content: center; white-space: normal; height: auto; min-height: 36px; padding: 6px 8px; } }

/* ─── Build Cart panel ─── */
.bcart { position: sticky; top: 96px; }
.bcart__panel { padding: 0; display: flex; flex-direction: column; max-height: calc(100vh - 116px); }
.bcart__head { display: flex; align-items: center; justify-content: space-between; gap: .75rem; padding: 18px 20px; border-bottom: 1px solid var(--line); }
.bcart__title { display: flex; align-items: center; gap: .6rem; font-weight: 600; font-size: 1.02rem; }
.bcart__icon { position: relative; width: 40px; height: 40px; border-radius: 12px; display: grid; place-items: center; background: var(--glass-2); border: 1px solid var(--line-2); }
.bcart__icon .ico { width: 22px; height: 22px; }
.bcart__icon .count-badge { position: absolute; top: -6px; right: -6px; }
.bcart__cur { width: auto; min-height: 36px; padding: .3rem 2.2rem .3rem .7rem; font-size: .84rem; border-radius: 10px; background-position: right .7rem center; }
.bcart__scroll { overflow: auto; padding: 6px 20px 4px; flex: 1; min-height: 80px; overscroll-behavior: contain; }
.bcart__sec { padding: 12px 0; }
.bcart__sec + .bcart__sec { border-top: 1px dashed var(--line-2); }
.bcart__sec h3 { font-size: .7rem; letter-spacing: .14em; text-transform: uppercase; color: var(--muted); font-weight: 600; margin-bottom: .55rem; }
.bline { display: grid; grid-template-columns: auto minmax(0, 1fr) auto auto; gap: .6rem; align-items: center; padding: 7px 0; font-size: .86rem; animation: line-in .45s var(--ease); }
@keyframes line-in { from { opacity: 0; transform: translateX(10px); } to { opacity: 1; transform: none; } }
.bline .ico { width: 18px; height: 18px; color: var(--text-2); }
.bline__label { min-width: 0; }
.bline__label b { display: block; font-weight: 550; font-size: .86rem; line-height: 1.35; }
.bline__label small { display: block; color: var(--muted); font-size: .74rem; line-height: 1.35; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.bline__amt { font-variant-numeric: tabular-nums; font-weight: 600; font-size: .84rem; white-space: nowrap; }
.bline__amt.is-discuss { color: var(--muted); font-weight: 500; font-size: .76rem; }
.bline__amt.is-neg { color: var(--purple-ink); }
.bline__x { width: 26px; height: 26px; border-radius: 8px; display: grid; place-items: center; color: var(--faint); }
.bline__x:hover { color: var(--text); background: var(--glass-2); }
.bline__x .ico { width: 14px; height: 14px; }
.bline__x[disabled] { visibility: hidden; }
.bcart__empty { padding: 18px 0; color: var(--muted); font-size: .88rem; display: flex; gap: .7rem; align-items: center; }
.bcart__empty .ico { width: 34px; height: 34px; stroke-width: 1.2; color: var(--faint); }
.bcart__totals { padding: 16px 20px; border-top: 1px solid var(--line); background: var(--glass-1); }
.bcart__row { display: flex; align-items: baseline; justify-content: space-between; gap: 1rem; font-size: .84rem; color: var(--muted); }
.bcart__row + .bcart__row { margin-top: .45rem; }
.bcart__row b { color: var(--text); font-weight: 600; font-variant-numeric: tabular-nums; }
.bcart__range { font-size: clamp(1.6rem, 2.3vw, 2rem); font-weight: 600; letter-spacing: -.045em; line-height: 1.1; color: var(--text); font-variant-numeric: tabular-nums; margin: .2rem 0 .7rem; }
.bcart__foot { padding: 14px 20px 18px; display: grid; gap: 10px; border-top: 1px solid var(--line); }
.bcart__note { font-size: .74rem; color: var(--muted); display: flex; gap: .45rem; align-items: flex-start; line-height: 1.45; }
.bcart__note .ico { width: 15px; height: 15px; flex: none; margin-top: 1px; color: var(--text-2); }
.bcart__third summary { cursor: pointer; font-size: .78rem; font-weight: 600; color: var(--text-2); list-style: none; display: flex; align-items: center; gap: .4rem; }
.bcart__third summary::-webkit-details-marker { display: none; }
.bcart__third summary .ico { width: 14px; height: 14px; transition: transform .25s; }
.bcart__third[open] summary .ico { transform: rotate(180deg); }
.bcart__third ul { margin-top: .6rem; display: grid; gap: .4rem; }
.bcart__third li { font-size: .76rem; color: var(--muted); display: grid; grid-template-columns: auto 1fr; gap: .5rem; }
.bcart__third li b { color: var(--text-2); font-weight: 550; }
.bcart__third li::before { content: ""; width: 5px; height: 5px; border-radius: 50%; background: var(--faint); margin-top: .5em; }
.bcart__proof { display: flex; align-items: center; gap: .6rem; padding: 10px 12px; border-radius: 12px; background: var(--glass-2); font-size: .76rem; color: var(--text-2); }
.bcart__proof b { color: var(--text); }
.bcart__proof .ico { width: 18px; height: 18px; flex: none; }
.bcart__bar { display: none; }
.bump-cart { animation: bump .5s var(--ease); }

/* flying icon chip */
.fly { position: fixed; left: 0; top: 0; z-index: 2000; width: 40px; height: 40px; margin: -20px 0 0 -20px; border-radius: 12px; display: grid; place-items: center; background: var(--purple-600); color: #fff; pointer-events: none; box-shadow: 0 10px 30px -8px rgba(74,48,196,0.8); }
.fly .ico { width: 20px; height: 20px; --dot: #fff; }

/* checkout step */
.summary-top { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 10px; }
.summary-top .tile { padding: 18px; }
.summary-top .tile span { font-size: .76rem; color: var(--muted); display: block; }
.summary-top .tile b { display: block; margin-top: .45rem; font-size: 1.35rem; letter-spacing: -.035em; font-weight: 600; font-variant-numeric: tabular-nums; line-height: 1.15; }
.summary-top .tile--purple b { font-size: 1.6rem; }
@media (max-width: 760px) { .summary-top { grid-template-columns: minmax(0, 1fr); } }
.deliver { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: .55rem 1.2rem; }
.deliver li { display: flex; gap: .55rem; font-size: .88rem; color: var(--text-2); align-items: flex-start; }
.deliver .ico { width: 17px; height: 17px; margin-top: 2px; color: var(--text); flex: none; }
@media (max-width: 640px) { .deliver { grid-template-columns: minmax(0, 1fr); } }
.actions { display: flex; flex-wrap: wrap; gap: 8px; }
.lead-success { text-align: center; padding: 26px 10px; }
.lead-success .checkout__icon { background: var(--glass-purple); border-color: var(--purple-line); }
.lead-success .checkout__icon .ico { color: var(--text); --dot: var(--purple-600); }
.est-id { font-family: ui-monospace, 'SF Mono', Menlo, monospace; font-size: .86rem; padding: .2rem .5rem; border-radius: 7px; background: var(--glass-2); }

.restore { display: flex; align-items: center; justify-content: space-between; gap: 1rem; flex-wrap: wrap; padding: 12px 16px; border-radius: 14px; border: 1px solid var(--line-2); background: var(--glass-1); margin-bottom: 14px; font-size: .86rem; color: var(--text-2); }

/* ─── Mobile: bottom cart bar + sheet ─── */
@media (max-width: 960px) {
  .calc { grid-template-columns: minmax(0, 1fr); }
  .bcart { position: fixed; left: 8px; right: 8px; bottom: 8px; top: auto; z-index: 870; }
  .bcart__bar {
    display: flex; align-items: center; gap: .75rem; width: 100%; height: 62px; padding: 0 10px 0 12px;
    border-radius: 20px; background: var(--panel-bg); border: 1px solid var(--line-2); color: var(--text);
    box-shadow: 0 20px 50px -18px rgba(0,0,0,0.8);
    backdrop-filter: var(--glass-blur); -webkit-backdrop-filter: var(--glass-blur); text-align: left;
  }
  .bcart__bar .bcart__icon { width: 40px; height: 40px; }
  .bcart__bar .meta { display: block; font-size: .74rem; }
  .bcart__bar b { font-size: 1rem; font-variant-numeric: tabular-nums; letter-spacing: -.02em; }
  .bcart__bar .btn { margin-left: auto; }
  .bcart__panel { position: fixed; left: 8px; right: 8px; bottom: 8px; max-height: min(82dvh, 760px); border-radius: 24px; background: var(--panel-bg); transform: translateY(110%); transition: transform .45s var(--ease); z-index: 2; box-shadow: 0 -30px 80px -20px rgba(0,0,0,0.8); }
  .bcart.is-open .bcart__panel { transform: none; }
  .bcart__scrim { position: fixed; inset: 0; background: rgba(0,0,0,0.5); opacity: 0; pointer-events: none; transition: opacity .3s; z-index: 1; }
  .bcart.is-open .bcart__scrim { opacity: 1; pointer-events: auto; }
  body.calc-page .wa-float { display: none; }
  body.calc-page .footer { padding-bottom: 90px; }
}
@media (min-width: 961px) { .bcart__scrim, .bcart__close { display: none; } }

/* print / PDF estimate */
.estimate-print { display: none; }
@media print {
  body.calc-page > *:not(.estimate-print) { display: none !important; }
  .estimate-print { display: block !important; color: #000; font-family: 'Inter', sans-serif; padding: 0; }
  .estimate-print h1 { font-size: 22pt; letter-spacing: -.02em; margin: 6pt 0 2pt; }
  .estimate-print .ep-head { display: flex; justify-content: space-between; align-items: center; border-bottom: 2pt solid #5B3FD9; padding-bottom: 10pt; margin-bottom: 14pt; }
  .estimate-print .ep-head img { height: 22pt; }
  .estimate-print table { width: 100%; border-collapse: collapse; font-size: 10pt; margin: 8pt 0 14pt; }
  .estimate-print th, .estimate-print td { text-align: left; padding: 5pt 4pt; border-bottom: .5pt solid #ddd; vertical-align: top; }
  .estimate-print td.r, .estimate-print th.r { text-align: right; }
  .estimate-print .ep-total { display: flex; gap: 24pt; padding: 10pt 12pt; background: #F4EEF9; border-radius: 6pt; margin: 6pt 0 14pt; }
  .estimate-print .ep-total b { display: block; font-size: 16pt; }
  .estimate-print h2 { font-size: 12pt; margin: 12pt 0 4pt; }
  .estimate-print p, .estimate-print li { font-size: 9.5pt; line-height: 1.5; }
  .estimate-print ul { padding-left: 14pt; list-style: disc; }
  @page { margin: 16mm; }
}