/* Экспериментальная страница: калькулятор эффекта от ИИ.
   Все классы с префиксом calc-, чтобы не пересекаться со styles.css. */

.calc-page { background: var(--paper); }

/* ---------- hero ---------- */
.calc-hero { padding-top: clamp(44px, 6vw, 78px); padding-bottom: clamp(30px, 4vw, 52px); border-bottom: 1px solid var(--hair); }
.calc-hero__grid { display: grid; grid-template-columns: minmax(0, 1.35fr) minmax(280px, .65fr); gap: clamp(28px, 5vw, 72px); align-items: end; }
.calc-hero h1 { font-family: var(--font-display); font-weight: 600; font-size: clamp(30px, 5.5vw, 64px); line-height: .98; letter-spacing: -0.04em; text-transform: uppercase; margin-top: 16px; hyphens: none; }
.calc-h1-second { display: inline; }
.calc-hero p { margin-top: 20px; max-width: 720px; font-size: clamp(16px, 1.5vw, 18px); line-height: 1.65; color: var(--grey); }
.calc-hero p b { color: var(--ink); font-weight: 800; }
.calc-credit { margin-top: 12px !important; font-size: 13px !important; line-height: 1.5; color: var(--faint) !important; }
.calc-credit a { color: var(--accent); font-weight: 700; border-bottom: 1px solid var(--accent-soft); }
.calc-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 22px; }
.calc-tags span { display: inline-flex; align-items: center; gap: 7px; padding: 8px 13px; border: 1px solid var(--hair-2); border-radius: 999px; background: var(--card); color: var(--ink-2); font-size: 11.5px; font-weight: 800; letter-spacing: .05em; text-transform: uppercase; }
.calc-tags span::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: var(--accent); }
.calc-principles { border: 1px solid var(--hair); border-left: 4px solid var(--accent); background: var(--card); padding: clamp(20px, 2.6vw, 30px); }
.calc-principles__label { display: block; font-size: 11px; font-weight: 800; letter-spacing: .12em; text-transform: uppercase; color: var(--accent); }
.calc-principles ol { display: grid; gap: 12px; margin-top: 16px; counter-reset: calc-p; list-style: none; }
.calc-principles li { position: relative; padding-left: 25px; font-size: 13.5px; line-height: 1.45; color: var(--grey); }
.calc-principles li::before { counter-increment: calc-p; content: "0" counter(calc-p); position: absolute; left: 0; top: .15em; font-family: var(--font-display); font-size: 10px; font-weight: 600; color: var(--accent); }
.calc-principles li b { display: block; color: var(--ink); font-size: 13.5px; }

/* ---------- tabs ---------- */
.calc-tabs { position: sticky; top: 72px; z-index: 25; display: flex; gap: 6px; padding: 12px 0; margin-bottom: clamp(22px, 3vw, 34px); background: var(--paper); border-bottom: 1px solid var(--hair-2); overflow-x: auto; scrollbar-width: none; }
.calc-tabs::-webkit-scrollbar { display: none; }
.calc-tab { flex: none; appearance: none; border: 1px solid var(--hair-2); background: transparent; color: var(--ink-2); padding: 11px 16px; font-family: var(--font-body); font-size: 12px; font-weight: 800; letter-spacing: .04em; text-transform: uppercase; cursor: pointer; transition: background .2s var(--ease), color .2s var(--ease), border-color .2s var(--ease); }
.calc-tab:hover { border-color: var(--ink); color: var(--ink); }
.calc-tab.is-active { background: var(--ink); border-color: var(--ink); color: #fff; }

/* ---------- layout ---------- */
.calc-section { padding-top: clamp(20px, 3vw, 34px); padding-bottom: clamp(28px, 4vw, 48px); }
.calc-panel { display: none; }
.calc-panel.is-active { display: block; }
.calc-layout { display: grid; grid-template-columns: minmax(0, 1fr) minmax(340px, 410px); gap: clamp(26px, 4vw, 52px); align-items: start; }

/* ---------- form ---------- */
.calc-form { min-width: 0; }
.calc-card { background: var(--card); border: 1px solid var(--hair); padding: clamp(20px, 2.5vw, 30px); margin-bottom: 14px; }
.calc-card__head { display: flex; align-items: flex-start; gap: 14px; margin-bottom: 20px; }
.calc-card__num { flex: none; padding-top: 4px; font-family: var(--font-display); font-size: 10px; font-weight: 600; letter-spacing: .08em; color: var(--accent); }
.calc-card h2 { font-family: var(--font-display); font-weight: 600; font-size: clamp(20px, 2.1vw, 26px); line-height: 1.08; letter-spacing: -.02em; }
.calc-card__head p { margin-top: 7px; max-width: 560px; font-size: 13.5px; line-height: 1.5; color: var(--grey); }
.calc-card h3 { font-size: 13px; font-weight: 800; letter-spacing: .07em; text-transform: uppercase; color: var(--ink-2); }

.calc-presets { display: flex; flex-wrap: wrap; gap: 8px; }
.calc-preset { appearance: none; border: 1px solid var(--hair-2); background: var(--paper); color: var(--ink-2); padding: 9px 11px; font-family: var(--font-body); font-size: 12px; font-weight: 800; white-space: nowrap; cursor: pointer; transition: background .2s var(--ease), color .2s var(--ease), border-color .2s var(--ease); }
.calc-preset:hover { border-color: var(--ink); color: var(--ink); }
.calc-preset.is-active { background: var(--accent); border-color: var(--accent); color: #fff; }

.calc-drivers { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px; }
.calc-driver { position: relative; display: flex; align-items: flex-start; gap: 11px; padding: 13px 14px; border: 1px solid var(--hair); background: var(--paper); cursor: pointer; transition: background .2s var(--ease), border-color .2s var(--ease), box-shadow .2s var(--ease); }
.calc-driver input { flex: none; width: 17px; height: 17px; margin-top: 2px; accent-color: var(--accent); cursor: pointer; }
.calc-driver b { display: block; font-size: 13.5px; line-height: 1.25; color: var(--ink); }
.calc-driver small { display: block; margin-top: 4px; font-size: 11.5px; line-height: 1.35; color: var(--grey); }
.calc-driver.is-on { border-color: var(--accent); background: var(--card); box-shadow: inset 3px 0 0 var(--accent); }

.calc-driver-fields { display: none; margin-top: 18px; padding-top: 18px; border-top: 1px solid var(--hair); }
.calc-driver-fields.is-open { display: block; }
.calc-driver-fields + .calc-driver-fields { margin-top: 0; }
.calc-driver-fields__title { display: flex; align-items: baseline; gap: 10px; margin-bottom: 14px; }
.calc-driver-fields__title span { font-family: var(--font-display); font-size: 10px; color: var(--accent); }

.calc-fields { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; }
.calc-field { min-width: 0; }
.calc-field--wide { grid-column: 1 / -1; }
.calc-field label { display: block; margin-bottom: 7px; font-size: 11.5px; font-weight: 800; letter-spacing: .03em; line-height: 1.3; color: var(--grey); }
.calc-field label span { color: var(--faint); font-weight: 700; }
.calc-input-wrap { position: relative; }
.calc-input { width: 100%; height: 47px; appearance: none; border: 1px solid var(--hair-2); border-radius: 0; background: var(--paper); color: var(--ink); padding: 0 14px; font-family: var(--font-body); font-size: 16px; font-weight: 700; transition: border-color .2s var(--ease), background .2s var(--ease); }
.calc-input:hover { border-color: var(--faint); }
.calc-input:focus { outline: 2px solid var(--accent); outline-offset: 1px; border-color: transparent; background: #fff; }
.calc-input-wrap .calc-input { padding-right: 48px; }
.calc-suffix { position: absolute; right: 13px; top: 50%; transform: translateY(-50%); font-size: 11px; font-weight: 800; color: var(--faint); pointer-events: none; }
.calc-hint { margin-top: 7px; font-size: 11.5px; line-height: 1.4; color: var(--faint); }
.calc-error { margin-top: 7px; font-size: 11.5px; font-weight: 800; color: var(--accent); }

.calc-select { width: 100%; height: 47px; appearance: none; border: 1px solid var(--hair-2); border-radius: 0; background: var(--paper) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6' viewBox='0 0 10 6'%3E%3Cpath d='M1 1l4 4 4-4' fill='none' stroke='%236f6a61' stroke-width='1.5'/%3E%3C/svg%3E") no-repeat right 14px center; color: var(--ink); padding: 0 40px 0 14px; font-family: var(--font-body); font-size: 14px; font-weight: 700; cursor: pointer; }
.calc-select:focus { outline: 2px solid var(--accent); outline-offset: 1px; border-color: transparent; }

/* ---------- results ---------- */
.calc-side { display: grid; gap: 14px; align-self: start; }
.calc-results { position: static; max-height: none; overflow: visible; background: var(--card); color: var(--ink); border: 1px solid var(--hair); border-left: 4px solid var(--accent); padding: clamp(20px, 2.4vw, 26px); }
.calc-results__label { font-size: 10.5px; font-weight: 800; letter-spacing: .12em; text-transform: uppercase; color: var(--accent); }
.calc-results__big { margin: 8px 0 4px; font-family: var(--font-display); font-weight: 600; font-size: clamp(31px, 3.6vw, 44px); line-height: 1; letter-spacing: -.04em; }
.calc-results__sub { font-size: 12px; line-height: 1.4; color: var(--grey); }
.calc-results__big.is-negative { color: #b33000; }
.calc-stats { display: grid; grid-template-columns: 1fr 1fr; margin-top: 20px; border-top: 1px solid var(--hair); }
.calc-stat { padding: 11px 0; border-bottom: 1px solid var(--hair); }
.calc-stat:nth-child(odd) { padding-right: 13px; border-right: 1px solid var(--hair); }
.calc-stat:nth-child(even) { padding-left: 13px; }
.calc-stat__label { display: block; font-size: 9.5px; font-weight: 800; letter-spacing: .09em; text-transform: uppercase; color: var(--grey); line-height: 1.3; }
.calc-stat__value { display: block; margin-top: 5px; font-size: 16px; font-weight: 800; line-height: 1.2; color: var(--ink); }
.calc-stat__value.is-negative { color: #b33000; }

.calc-block { margin-top: 18px; }
.calc-block__title { display: flex; justify-content: space-between; gap: 10px; align-items: baseline; font-size: 10px; font-weight: 800; letter-spacing: .1em; text-transform: uppercase; color: var(--grey); }
.calc-block__title span { letter-spacing: 0; text-transform: none; color: var(--faint); }
.calc-scenario { display: grid; grid-template-columns: 1fr auto; grid-template-areas: "label value" "bar bar"; gap: 5px 10px; align-items: center; margin-top: 8px; font-size: 11px; color: var(--grey); }
.calc-scenario > span { grid-area: label; white-space: nowrap; }
.calc-scenario b { grid-area: value; text-align: right; font-size: 11.5px; color: var(--ink); white-space: nowrap; }
.calc-scenario b.is-negative { color: #b33000; }
.calc-scenario__bar { grid-area: bar; height: 5px; background: #eeeae3; overflow: hidden; }
.calc-scenario__bar i { display: block; height: 100%; width: 0; background: var(--accent); transition: width .35s var(--ease); }
.calc-scenario:nth-child(3) .calc-scenario__bar i { background: var(--ink); }
.calc-scenario:nth-child(4) .calc-scenario__bar i { background: var(--faint); }

.calc-breakdown__row { display: grid; grid-template-columns: 68px minmax(0,1fr) 82px; gap: 9px; align-items: center; margin-top: 9px; font-size: 11px; color: var(--grey); }
.calc-breakdown__row[hidden] { display: none; }
.calc-breakdown__row b { text-align: right; font-size: 11.5px; color: var(--ink); white-space: nowrap; }
.calc-breakdown__bar { height: 5px; background: #eeeae3; overflow: hidden; }
.calc-breakdown__bar i { display: block; height: 100%; width: 0; background: var(--ink-2); transition: width .35s var(--ease); }
.calc-breakdown__row:first-of-type .calc-breakdown__bar i { background: var(--accent); }

.calc-warnings { margin-top: 18px; padding-top: 14px; border-top: 1px solid var(--hair); }
.calc-warnings__title { font-size: 10px; font-weight: 800; letter-spacing: .1em; text-transform: uppercase; color: var(--grey); }
.calc-warning { position: relative; margin-top: 9px; padding-left: 14px; font-size: 11.5px; line-height: 1.45; color: var(--ink-2); }
.calc-warning::before { content: ""; position: absolute; left: 0; top: .5em; width: 6px; height: 6px; background: var(--accent); }
.calc-warning--ok::before { background: #8fd19e; }

.calc-results__actions { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 22px; }
.calc-btn { appearance: none; display: inline-flex; align-items: center; justify-content: center; gap: 7px; height: 41px; padding: 0 15px; border: 1px solid var(--hair-2); background: transparent; color: var(--ink); font-family: var(--font-body); font-size: 10.5px; font-weight: 800; letter-spacing: .05em; text-transform: uppercase; cursor: pointer; transition: border-color .2s var(--ease), color .2s var(--ease), background .2s var(--ease); }
.calc-btn:hover { border-color: var(--accent); color: var(--accent); }
.calc-btn--accent { background: var(--accent); border-color: var(--accent); color: #fff; }
.calc-btn--accent:hover { background: var(--ink); border-color: var(--ink); color: #fff; }
.calc-results__note { margin-top: 16px; font-size: 10.5px; line-height: 1.45; color: var(--faint); }
.calc-actions { padding: 16px; background: var(--card); border: 1px solid var(--hair); border-left: 4px solid var(--accent); }
.calc-actions__label { display: block; margin-bottom: 10px; font-size: 10px; font-weight: 800; letter-spacing: .12em; text-transform: uppercase; color: var(--accent); }
.calc-actions .calc-results__actions { margin-top: 0; }
.calc-actions .calc-results__note { margin-top: 12px; }

.calc-results--ab .calc-results__big { font-size: clamp(36px, 4.4vw, 54px); }

/* ---------- AB ---------- */
#panel-ab .calc-layout { align-items: stretch; }
#panel-ab .calc-form { display: flex; flex-direction: column; }
#panel-ab .calc-form .calc-card:last-child { display: flex; flex-direction: column; flex: 1; margin-bottom: 0; }
#panel-ab .calc-code--checklist { flex: 1; display: flex; flex-direction: column; }
#panel-ab .calc-code--checklist .calc-checklist { flex: 1; align-content: space-between; }

.calc-ab-traffic { margin-top: 18px; border-top: 1px solid var(--hair); }
.calc-ab-traffic__row { display: grid; grid-template-columns: 1fr auto; gap: 12px; padding: 9px 0; border-bottom: 1px solid var(--hair); font-size: 11.5px; color: var(--grey); }
.calc-ab-traffic__row b { color: var(--ink); white-space: nowrap; }
.calc-ab-traffic__row.is-current { color: var(--accent); }
.calc-ab-traffic__row.is-current b { color: var(--accent); }

/* ---------- details ---------- */
.calc-details { border-top: 1px solid var(--hair); margin-top: 20px; padding-top: 16px; }
.calc-details summary { display: flex; align-items: center; justify-content: space-between; gap: 12px; cursor: pointer; list-style: none; font-size: 12px; font-weight: 800; letter-spacing: .04em; text-transform: uppercase; color: var(--ink-2); }
.calc-details summary::-webkit-details-marker { display: none; }
.calc-details summary::after { content: "+"; font-family: var(--font-display); font-size: 18px; line-height: 1; color: var(--accent); }
.calc-details[open] summary::after { content: "−"; }
.calc-details summary:hover { color: var(--accent); }
.calc-details p, .calc-details ul { margin-top: 10px; font-size: 12.5px; line-height: 1.55; color: var(--grey); }
.calc-details ul { display: grid; gap: 6px; padding-left: 18px; list-style: disc; }
.calc-details li { padding-left: 2px; }
.calc-details code { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 11.5px; background: var(--paper); border: 1px solid var(--hair); padding: 1px 5px; }

.calc-code { margin-top: 14px; border: 1px solid var(--hair); border-radius: 12px; background: #fbfaf7; overflow: hidden; box-shadow: 0 18px 40px -34px rgba(20,18,15,.55); }
.calc-code__bar { position: relative; display: flex; align-items: center; justify-content: center; gap: 10px; padding: 10px 12px; border-bottom: 1px solid var(--hair); background: linear-gradient(#f7f5f0, #efece5); }
.calc-code__dots { position: absolute; left: 12px; display: flex; gap: 5px; }
.calc-code__dots i { display: block; width: 8px; height: 8px; border-radius: 50%; }
.calc-code__dots i:nth-child(1) { background: #ff5f57; }
.calc-code__dots i:nth-child(2) { background: #febc2e; }
.calc-code__dots i:nth-child(3) { background: #28c840; }
.calc-code__title { text-align: center; font-size: 10px; font-weight: 800; letter-spacing: .06em; text-transform: uppercase; color: var(--faint); }
.calc-code__body { margin: 0; padding: 14px 16px; overflow-x: auto; white-space: pre-wrap; overflow-wrap: anywhere; background: #fbfaf7; color: var(--ink-2); font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 11.5px; line-height: 1.7; }
.calc-code__body code { font: inherit; background: none; border: 0; padding: 0; }
.calc-code__comment { color: var(--faint); }
.calc-terms { display: grid; gap: 10px; margin: 0; padding: 14px 16px; background: #fbfaf7; }
.calc-terms div { display: grid; grid-template-columns: 112px minmax(0,1fr); gap: 12px; align-items: start; }
.calc-terms dt { font-size: 12px; font-weight: 800; color: var(--ink); line-height: 1.45; }
.calc-terms dd { margin: 0; font-size: 12.5px; line-height: 1.5; color: var(--grey); }
.calc-checklist { display: grid; gap: 10px; margin: 0; padding: 14px 16px; background: #fbfaf7; }
.calc-checklist li { position: relative; padding-left: 18px; font-size: 12.5px; line-height: 1.5; color: var(--grey); }
.calc-checklist li::before { content: ""; position: absolute; left: 2px; top: .62em; width: 6px; height: 6px; border-radius: 2px; background: var(--accent); }
.calc-checklist b { color: var(--ink); }

/* ---------- benchmarks ---------- */
.calc-bench-intro { display: grid; grid-template-columns: minmax(0,1fr) minmax(280px,.7fr); gap: clamp(24px, 4vw, 56px); align-items: end; margin-bottom: 26px; }
.calc-bench-intro h2 { font-family: var(--font-display); font-weight: 600; font-size: clamp(26px, 3.4vw, 40px); line-height: 1.03; letter-spacing: -.03em; }
.calc-bench-intro p { margin-top: 14px; max-width: 720px; font-size: 15px; line-height: 1.6; color: var(--grey); }
.calc-bench-note { border-left: 3px solid var(--accent); padding: 2px 0 2px 16px; font-size: 13px; line-height: 1.5; color: var(--grey); }
.calc-bench-note b { color: var(--ink); }
.calc-bench-grid { display: grid; grid-template-columns: repeat(3, minmax(0,1fr)); gap: 14px; }
.calc-bench { display: flex; flex-direction: column; min-height: 260px; padding: clamp(20px, 2.2vw, 28px); background: var(--card); border: 1px solid var(--hair); }
.calc-bench__source { font-size: 10px; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; color: var(--faint); }
.calc-bench__value { margin-top: 16px; font-family: var(--font-display); font-weight: 600; font-size: clamp(28px, 3.2vw, 40px); line-height: .98; letter-spacing: -.04em; color: var(--accent); }
.calc-bench h3 { margin-top: 10px; font-size: 14px; font-weight: 800; line-height: 1.35; color: var(--ink); }
.calc-bench p { margin-top: 9px; font-size: 12.5px; line-height: 1.5; color: var(--grey); }
.calc-bench a { margin-top: auto; padding-top: 16px; font-size: 11px; font-weight: 800; letter-spacing: .04em; text-transform: uppercase; color: var(--accent); }
.calc-bench a:hover { text-decoration: underline; }

.calc-sources { margin-top: 32px; padding-top: 24px; border-top: 1px solid var(--hair); }
.calc-sources h3 { font-family: var(--font-display); font-weight: 600; font-size: 20px; letter-spacing: -.02em; }
.calc-sources ul { display: grid; gap: 9px; margin-top: 16px; }
.calc-sources li { position: relative; padding-left: 18px; font-size: 13px; line-height: 1.5; color: var(--grey); }
.calc-sources li b { color: var(--ink); }
.calc-sources li::before { content: ""; position: absolute; left: 2px; top: .62em; width: 6px; height: 6px; border-radius: 2px; background: var(--accent); }
.calc-sources a { color: var(--ink-2); font-weight: 700; border-bottom: 1px solid var(--hair-2); }
.calc-sources a:hover { color: var(--accent); border-bottom-color: var(--accent); }

/* ---------- bottom cta ---------- */
.calc-cta { padding-top: clamp(8px, 1.5vw, 16px); }
.calc-cta .invite { background: var(--card); }
.calc-cta .invite p { max-width: 620px; }

/* ---------- print ---------- */
.calc-print-head { display: none; }
@media print {
  body { background: #fff; }
  .topbar, .mobile-nav, .footer, .grain, .to-top, .cookie, .calc-hero, .calc-tabs, .calc-form, .calc-cta, .calc-bench-intro, .calc-bench-top, .calc-bench-more, .calc-bench-grid, .calc-sources, .calc-actions, .calc-results__actions, .calc-results__note { display: none !important; }
  .calc-section { padding: 0; }
  .calc-layout { display: block; }
  .calc-side { position: static; display: block; }
  .calc-results { position: static; max-height: none; overflow: visible; background: #fff; color: #14120f; border: 1px solid #ddd8ce; padding: 24px; }
  .calc-results__label, .calc-results__sub, .calc-stat__label, .calc-block__title, .calc-warnings__title { color: #6f6a61; }
  .calc-stat { border-color: #ddd8ce; }
  .calc-stat__value, .calc-scenario b, .calc-breakdown__row b { color: #14120f; }
  .calc-scenario { color: #3a3730; }
  .calc-breakdown__row { color: #3a3730; }
  .calc-scenario__bar, .calc-breakdown__bar { background: #eeeae3; }
  .calc-scenario__bar i, .calc-breakdown__bar i { background: #ff4d00 !important; }
  .calc-warning { color: #3a3730; }
  .calc-results__big.is-negative, .calc-stat__value.is-negative, .calc-scenario b.is-negative { color: #b33000; }
  .calc-print-head { display: block; margin-bottom: 20px; padding-bottom: 14px; border-bottom: 1px solid #ddd8ce; }
  .calc-print-head b { display: block; font-family: var(--font-display); font-size: 18px; }
  .calc-print-head span { font-size: 11px; color: #6f6a61; }
}

/* ---------- responsive ---------- */
@media (max-width: 1100px) {
  .calc-layout { grid-template-columns: 1fr; }
  .calc-side { position: static; }
  .calc-results { position: static; max-height: none; overflow: visible; }
  .calc-bench-grid { grid-template-columns: repeat(2, minmax(0,1fr)); }
  .calc-bench-intro { grid-template-columns: 1fr; }
}

@media (max-width: 760px) {
  .calc-hero__grid { grid-template-columns: 1fr; align-items: start; }
  .calc-tabs { top: 72px; margin-left: calc(-1 * var(--pad)); margin-right: calc(-1 * var(--pad)); padding-left: var(--pad); padding-right: var(--pad); gap: 4px; }
  .calc-tab { flex: 1 1 0; padding-left: 6px; padding-right: 6px; font-size: 11px; }
  .calc-h1-second { display: block; }
  .calc-fields, .calc-drivers, .calc-bench-grid { grid-template-columns: 1fr; }
  .calc-driver { min-height: 0; }
  .calc-results { padding: 22px 18px; }
  .calc-breakdown__row { grid-template-columns: 58px minmax(0,1fr) 76px; }
  .calc-bench { min-height: 0; }
  .calc-terms div { grid-template-columns: 1fr; gap: 2px; }
}

@media (max-width: 380px) {
  .calc-hero h1 { font-size: 27px; }
  .calc-results__big { font-size: 29px; }
  .calc-scenario { font-size: 10px; }
  .calc-scenario b { font-size: 10.5px; }
}

/* выравнивание полей в двух колонках */
@media (min-width: 761px) {
  .calc-field label { min-height: 2.6em; }
}

/* мобильный переход к результату */
.calc-jump { display: none; }
@media (max-width: 1100px) {
  .calc-jump { display: flex; align-items: center; justify-content: center; width: 100%; height: 54px; margin: 16px 0 0; border: 0; background: var(--accent); color: #fff; font-family: var(--font-body); font-size: 13px; font-weight: 800; letter-spacing: .06em; text-transform: uppercase; cursor: pointer; }
  .calc-jump:hover { background: var(--ink); }
  .calc-results:focus { outline: none; }
}

/* бенчмарки: три главных ориентира + остальные под спойлером */
.calc-bench-top { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; margin-bottom: 14px; }
.calc-bench-key { padding: clamp(18px, 2.2vw, 26px); background: var(--card); border: 1px solid var(--hair); border-top: 3px solid var(--accent); }
.calc-bench-key b { display: block; font-family: var(--font-display); font-weight: 600; font-size: clamp(28px, 3.2vw, 40px); line-height: .98; letter-spacing: -.04em; color: var(--accent); }
.calc-bench-key span { display: block; margin-top: 10px; font-size: 13px; line-height: 1.45; color: var(--grey); }
.calc-bench-more { margin-top: 14px; border-top: 1px solid var(--hair); }
.calc-bench-more summary { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 16px 0; cursor: pointer; list-style: none; font-size: 12px; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; color: var(--accent); }
.calc-bench-more summary::-webkit-details-marker { display: none; }
.calc-bench-more summary::after { content: "+"; font-family: var(--font-display); font-size: 18px; line-height: 1; }
.calc-bench-more[open] summary::after { content: "–"; }
.calc-bench-more .calc-bench-grid { margin-top: 14px; }
@media (max-width: 760px) {
  .calc-bench-top { grid-template-columns: 1fr; }
}