/* Калькулятор рулонів (/calculator/): ліворуч параметри, праворуч живий результат — схема кімнати, кількість, розкрій рулонів */
.rc-head { max-width: 760px; padding: 4px 0 28px; }
.rc-head h1 { margin: 0 0 12px; font-family: var(--serif); font-size: clamp(40px, 4.4vw, 66px); font-weight: 400; line-height: 1.02; letter-spacing: -.01em; }
.rc-head h1 em, .rc-how h2 em { font-style: italic; color: var(--brass, #a8864f); }
.rc-head p { margin: 0; max-width: 620px; color: #555; font-size: 14px; }

.rc { display: grid; grid-template-columns: minmax(0, 6fr) minmax(0, 5fr); grid-template-areas: "controls result"; gap: clamp(24px, 3.4vw, 56px); align-items: start; }
.rc__controls { grid-area: controls; display: grid; gap: 14px; min-width: 0; }
.rc__result { grid-area: result; position: sticky; top: 96px; min-width: 0; padding: 22px; background: #fff; border: 1px solid var(--line); }

/* блоки параметрів */
.rc-block { margin: 0; padding: 20px 22px 22px; border: 1px solid var(--line); background: #fff; min-width: 0; }
.rc-block legend { float: left; width: 100%; display: flex; align-items: baseline; gap: 12px; flex-wrap: wrap; margin: 0 0 16px; padding: 0; font-size: 12px; font-weight: 500; letter-spacing: .14em; text-transform: uppercase; }
.rc-block legend span { font-family: var(--serif); font-size: 22px; font-weight: 400; letter-spacing: 0; color: var(--brass, #a8864f); font-variant-numeric: lining-nums; }
.rc-block legend small { font-size: 11.5px; font-weight: 400; letter-spacing: 0; text-transform: none; color: var(--muted); }
.rc-block > :not(legend) { clear: both; }

.rc-chips { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 16px; }
.rc-chips:last-child { margin-bottom: 0; }
.rc-chips button { height: 38px; padding: 0 15px; border: 1px solid var(--line-strong); background: #fff; font-size: 12.5px; transition: border-color .2s, background .2s, color .2s; }
.rc-chips button:hover { border-color: var(--ink); }
.rc-chips button.is-on { border-color: var(--ink); background: var(--ink); color: #fff; }
.rc-chips--roll { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); }
.rc-chips--roll button { height: auto; min-height: 92px; padding: 12px 10px; display: grid; justify-items: center; align-content: center; gap: 3px; text-align: center; }
.rc-chips--roll button i { display: block; width: calc(var(--w) * 44px); height: 26px; margin-bottom: 6px; border-radius: 3px; background: repeating-linear-gradient(90deg, #e7dccb 0 7px, #dccfb9 7px 8px); box-shadow: inset 0 0 0 1px rgba(0,0,0,.12), 4px 0 0 -1px #cbbda6; }
.rc-chips--roll button b { font-size: 12.5px; font-weight: 500; font-variant-numeric: lining-nums; }
.rc-chips--roll button small { font-size: 11px; color: var(--muted); }
.rc-chips--roll button.is-on small { color: rgba(255,255,255,.7); }
.rc-chips--roll button.is-on i { box-shadow: inset 0 0 0 1px rgba(255,255,255,.3); }

.rc-custom { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; margin-top: 14px; }
.rc-custom[hidden] { display: none; }
.rc-custom label, .rc-price { display: flex; flex-direction: column; gap: 5px; font-size: 11px; letter-spacing: .04em; color: var(--muted); }
.rc-custom input, .rc-price input { height: 44px; width: 100%; padding: 0 12px; border: 1px solid var(--line-strong); font-size: 15px; outline: none; }
.rc-custom input:focus, .rc-price input:focus { border-color: var(--ink); }
.rc-price { position: relative; max-width: 260px; }
.rc-price small { position: absolute; right: 14px; top: 13px; font-size: 14px; color: var(--muted); }

/* розміри: велике значення, −/+ і повзунок */
.rc-field { display: grid; grid-template-columns: 130px minmax(0, 1fr); grid-template-areas: "label row" "range range"; align-items: center; gap: 4px 16px; padding: 12px 0; border-top: 1px solid var(--line); }
.rc-field label { grid-area: label; font-size: 12px; letter-spacing: .1em; text-transform: uppercase; }
.rc-field__row { grid-area: row; display: flex; align-items: center; justify-content: flex-end; gap: 8px; }
.rc-field__val { display: inline-flex; align-items: baseline; gap: 4px; }
.rc-field__val input { width: 88px; border: 0; border-bottom: 1px solid transparent; background: transparent; padding: 0; text-align: right; font-family: var(--serif); font-size: 34px; line-height: 1.1; font-variant-numeric: lining-nums; outline: none; }
.rc-field__val input:focus { border-bottom-color: var(--ink); }
.rc-field__val small { font-size: 13px; color: var(--muted); }
.rc-step { flex: none; width: 36px; height: 36px; border: 1px solid var(--line-strong); border-radius: 50%; background: #fff; font-size: 18px; line-height: 1; transition: border-color .2s, background .2s; }
.rc-step:hover { border-color: var(--ink); }
.rc-step:active { background: var(--soft); }
.rc-range { grid-area: range; width: 100%; height: 22px; margin: 2px 0 0; background: transparent; -webkit-appearance: none; appearance: none; cursor: pointer; }
.rc-range::-webkit-slider-runnable-track { height: 2px; background: linear-gradient(90deg, var(--ink) var(--p, 50%), var(--line-strong) var(--p, 50%)); }
.rc-range::-moz-range-track { height: 2px; background: var(--line-strong); }
.rc-range::-moz-range-progress { height: 2px; background: var(--ink); }
.rc-range::-webkit-slider-thumb { -webkit-appearance: none; width: 18px; height: 18px; margin-top: -8px; border-radius: 50%; background: #fff; border: 2px solid var(--ink); }
.rc-range::-moz-range-thumb { width: 14px; height: 14px; border-radius: 50%; background: #fff; border: 2px solid var(--ink); }

/* вікна й двері */
.rc-counts { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; }
.rc-count { display: flex; align-items: center; gap: 10px; padding: 12px; border: 1px solid var(--line); min-width: 0; }
.rc-count__ico { flex: none; width: 34px; height: 40px; border: 2px solid #8ba3b3; background: linear-gradient(#8ba3b3, #8ba3b3) center / 2px 100% no-repeat, linear-gradient(#8ba3b3, #8ba3b3) center / 100% 2px no-repeat, #e6eef3; }
.rc-count__ico--doors { width: 26px; border-color: #9b8467; background: radial-gradient(circle at 75% 55%, #9b8467 0 2px, transparent 3px), #d9c9b2; }
.rc-count__text { flex: 1; min-width: 0; display: grid; }
.rc-count__text b { font-size: 12px; font-weight: 500; letter-spacing: .1em; text-transform: uppercase; }
.rc-count__text small { font-size: 11.5px; color: var(--muted); }
.rc-count output { min-width: 22px; text-align: center; font-family: var(--serif); font-size: 28px; font-variant-numeric: lining-nums; }
.rc-count .rc-step { width: 32px; height: 32px; }

/* результат */
.rc-product { display: flex; align-items: center; gap: 12px; margin: -6px 0 16px; padding: 0 0 14px; border-bottom: 1px solid var(--line); color: inherit; }
.rc-product img { width: 56px; height: 56px; object-fit: cover; background: var(--soft); }
.rc-product span { display: grid; gap: 1px; min-width: 0; }
.rc-product small { font-size: 10px; letter-spacing: .18em; text-transform: uppercase; color: var(--muted); }
.rc-product b { font-size: 14px; font-weight: 500; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.rc-product i { font-style: normal; font-size: 12px; color: var(--muted); }
.rc-scene { position: relative; margin: 0 -8px; }
.rc-scene svg { display: block; width: 100%; height: auto; overflow: visible; }
.rc-scene__tag { position: absolute; right: 8px; top: 0; font-size: 10.5px; letter-spacing: .14em; text-transform: uppercase; color: var(--muted); }
#rcRoom .rc-floor { fill: #e9dfd0; stroke: #cfc2ad; stroke-width: 1; }
#rcRoom .rc-board { stroke: #dccfbb; stroke-width: 1; }
#rcRoom .rc-strip { fill: #f1e9dc; stroke: #d2c4ad; stroke-width: 1; }
#rcRoom .rc-strip.is-alt { fill: #e9dfcf; }
#rcRoom .rc-strip--side { fill: #e4d8c5; }
#rcRoom .rc-strip--side.is-alt { fill: #dccfba; }
#rcRoom .rc-win { fill: #dfe9ef; stroke: #fff; stroke-width: 3; }
#rcRoom .rc-win-x { stroke: #fff; stroke-width: 2; }
#rcRoom .rc-door { fill: #cdb89b; stroke: #b39c7c; stroke-width: 1; }
#rcRoom .rc-edge { fill: none; stroke: #b9aa92; stroke-width: 1.2; }
#rcRoom .rc-edge--near { stroke-dasharray: 4 4; stroke: #c9bca7; }
#rcRoom .rc-lab { font: 500 12px var(--font); fill: var(--ink); letter-spacing: .04em; text-anchor: middle; paint-order: stroke; stroke: #fff; stroke-width: 4px; }
#rcRoom .rc-num { font: 10px var(--font); fill: #9c8d76; text-anchor: middle; }
@keyframes rcRoll { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: none; } }

.rc-total { display: flex; align-items: flex-end; justify-content: space-between; gap: 16px; margin: 6px 0 14px; padding-bottom: 16px; border-bottom: 1px solid var(--line); }
.rc-total__num { display: flex; align-items: baseline; gap: 10px; }
.rc-total__num b { font-family: var(--serif); font-size: clamp(64px, 6vw, 92px); font-weight: 400; line-height: .9; font-variant-numeric: lining-nums; }
.rc-total__num span { font-size: 13px; letter-spacing: .14em; text-transform: uppercase; }
.rc-total__sum { display: grid; justify-items: end; }
.rc-total__sum[hidden] { display: none; }
.rc-total__sum small { font-size: 10.5px; letter-spacing: .18em; text-transform: uppercase; color: var(--muted); }
.rc-total__sum b { font-family: var(--serif); font-size: 30px; font-weight: 400; font-variant-numeric: lining-nums; }
.rc-error { margin: -4px 0 14px; padding: 10px 12px; background: #fbefe9; color: var(--sale); font-size: 13px; }
.rc-error[hidden] { display: none; }

.rc-stats { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 10px; margin: 0 0 18px; }
.rc-stats div { min-width: 0; }
.rc-stats dt { font-size: 10px; letter-spacing: .14em; text-transform: uppercase; color: var(--muted); }
.rc-stats dd { margin: 2px 0 0; font-family: var(--serif); font-size: 22px; font-variant-numeric: lining-nums; white-space: nowrap; }

.rc-cut { margin-bottom: 18px; }
.rc-cut__head { display: flex; align-items: baseline; justify-content: space-between; gap: 12px; flex-wrap: wrap; margin-bottom: 10px; }
.rc-cut__head b { font-size: 11px; font-weight: 500; letter-spacing: .14em; text-transform: uppercase; }
.rc-legend { display: inline-flex; align-items: center; gap: 6px 12px; flex-wrap: wrap; font-size: 11px; color: var(--muted); }
.rc-legend i { display: inline-block; width: 12px; height: 8px; margin-right: -6px; vertical-align: middle; }
.rc-cut__rolls { display: grid; gap: 6px; }
.rc-roll { display: grid; grid-template-columns: 22px minmax(0, 1fr); align-items: center; gap: 8px; }
.rc-roll.is-new { animation: rcRoll .45s cubic-bezier(.2,.7,.2,1) both; }
.rc-roll__n { font-size: 11px; color: var(--muted); font-variant-numeric: tabular-nums; text-align: right; }
.rc-roll__bar { display: flex; gap: 2px; height: 16px; }
.rc-roll__bar i { display: block; flex: 0 0 0; height: 100%; transition: flex-grow .4s cubic-bezier(.2,.7,.2,1), background-color .25s; }
.rc-roll__more { padding-left: 30px; font-size: 11.5px; color: var(--muted); }
.is-used { background: #c9a978; }
.is-spare { background: repeating-linear-gradient(135deg, #e3d5bf 0 4px, #f3ece1 4px 8px); box-shadow: inset 0 0 0 1px #d6c6ab; }
.is-rest { background: #ece7df; }

.rc-cta { display: grid; gap: 10px; }
.rc-cta .btn { height: auto; min-height: 54px; padding: 12px 20px; white-space: normal; line-height: 1.3; text-align: center; }   /* «Підібрати шпалери шириною 1,06 м» не вилазить за екран */
.rc-call { justify-self: center; font-size: 12.5px; border-bottom: 1px solid var(--line-strong); }
.rc-note { margin: 12px 0 0; text-align: center; font-size: 11.5px; color: var(--muted); }

.rc-how { max-width: 1100px; padding: 72px 0 24px; }
.rc-how h2 { margin: 0 0 26px; font-family: var(--serif); font-size: clamp(32px, 3vw, 46px); font-weight: 400; }
.rc-how ol { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 28px; margin: 0; padding: 0; list-style: none; counter-reset: rc; }
.rc-how li { position: relative; padding-top: 52px; font-size: 13.5px; color: #555; counter-increment: rc; }
.rc-how li::before { content: "0" counter(rc); position: absolute; left: 0; top: 0; font-family: var(--serif); font-size: 36px; line-height: 1; color: var(--brass, #a8864f); }
.rc-how li b { display: block; margin-bottom: 6px; font-size: 12px; font-weight: 500; letter-spacing: .12em; text-transform: uppercase; color: var(--ink); }

.rc-bar { display: none; }

@media (max-width: 1000px) {
  .rc { grid-template-columns: minmax(0, 1fr); grid-template-areas: "result" "controls"; }
  .rc__result { position: static; }
  .rc-chips--roll { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .rc-how ol { grid-template-columns: 1fr; gap: 22px; }
  .rc-bar { position: fixed; left: 0; right: 0; bottom: 0; z-index: 60; display: flex; align-items: center; gap: 12px; padding: 10px var(--gutter) calc(10px + env(safe-area-inset-bottom)); background: var(--ink); color: #fff; transform: translateY(110%); transition: transform .3s ease; }
  .rc-bar.is-on { transform: none; }
  .rc-bar b { font-family: var(--serif); font-size: 22px; font-weight: 400; font-variant-numeric: lining-nums; }
  .rc-bar span { flex: 1; font-size: 13px; color: rgba(255,255,255,.75); }
  .rc-bar a { font-size: 11px; letter-spacing: .12em; text-transform: uppercase; border-bottom: 1px solid rgba(255,255,255,.5); }
}
@media (max-width: 560px) {
  .rc__result { padding: 16px; margin: 0 calc(-1 * var(--gutter) + 8px); }
  .rc-block { padding: 16px; }
  .rc-field { grid-template-columns: minmax(0, 1fr); grid-template-areas: "label" "row" "range"; }
  .rc-field__row { justify-content: space-between; }
  .rc-counts { grid-template-columns: minmax(0, 1fr); }
  .rc-stats { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .rc-total__num b { font-size: 64px; }
  .rc-total__sum b { font-size: 24px; }
}
@media (prefers-reduced-motion: reduce) { .rc-roll.is-new { animation: none; } .rc-roll__bar i { transition: none; } }

/* телефон: поля від 16 px — iOS не збільшує сторінку при фокусі */
@media (max-width: 900px) { .rc-custom input, .rc-price input { font-size: 16px; } }