.calculator-back {
  padding: 10px 14px;
  border: 1px solid var(--tools-line);
  border-radius: 999px;
  color: var(--tools-green);
  background: rgba(255,255,255,0.72);
  text-decoration: none;
  font: 750 0.82rem/1 "Work Sans", sans-serif;
}

.calculator-hero {
  display: grid;
  grid-template-columns: minmax(0, 1.55fr) minmax(260px, 0.45fr);
  gap: 18px;
  margin-top: 18px;
}

.calculator-hero__copy,
.calculator-hero__mark,
.calculator-form,
.calculator-result,
.calculator-method,
.calculator-links {
  border: 1px solid var(--tools-line);
  border-radius: 28px;
  box-shadow: 0 14px 34px rgba(40, 64, 50, 0.07);
}

.calculator-hero__copy {
  padding: clamp(30px, 4vw, 54px);
  background: rgba(255,255,255,0.8);
}

.calculator-hero h1 {
  max-width: 850px;
  margin: 0;
  font: 600 clamp(2.6rem, 5vw, 5rem)/0.94 "Zodiak", Georgia, serif;
  letter-spacing: -0.05em;
}

.calculator-hero__copy > p {
  max-width: 760px;
  margin: 20px 0 0;
  color: var(--tools-muted);
  font: 400 1.05rem/1.52 "Work Sans", sans-serif;
}

.calculator-hero__mark {
  display: grid;
  place-items: center;
  align-content: center;
  padding: 28px;
  color: #70450d;
  text-align: center;
  background: linear-gradient(145deg, #fff9e9, #f2dfb4);
}

.calculator-hero__mark span {
  font-size: 3.5rem;
}

.calculator-hero__mark strong {
  margin-top: 14px;
  font: 750 2.5rem/1 "Work Sans", sans-serif;
}

.calculator-hero__mark small {
  margin-top: 6px;
  font: 700 0.75rem/1 "Work Sans", sans-serif;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.calculator-workspace {
  display: grid;
  grid-template-columns: minmax(0, 0.92fr) minmax(0, 1.08fr);
  gap: 18px;
  margin-top: 18px;
}

.calculator-form,
.calculator-result {
  padding: clamp(24px, 4vw, 42px);
}

.calculator-form {
  background: rgba(255,255,255,0.8);
}

.calculator-form__head span,
.calculator-result__eyebrow {
  color: var(--tools-green);
  font: 800 0.72rem/1 "Work Sans", sans-serif;
  letter-spacing: 0.07em;
  text-transform: uppercase;
}

.calculator-form__head h2,
.calculator-result h2,
.calculator-method h2,
.calculator-links h2 {
  margin: 8px 0 0;
  font: 600 clamp(1.8rem, 3vw, 2.8rem)/1 "Zodiak", Georgia, serif;
}

.calculator-form__head p {
  margin: 12px 0 26px;
  color: var(--tools-muted);
  font: 400 0.88rem/1.45 "Work Sans", sans-serif;
}

.calculator-field {
  display: grid;
  gap: 9px;
  margin-top: 18px;
  padding: 13px;
  border: 1px solid rgba(40,95,67,0.1);
  border-radius: 17px;
  background: rgba(247,250,246,0.86);
  font: 700 0.9rem/1.25 "Work Sans", sans-serif;
  transition: border-color 160ms ease, background 160ms ease, box-shadow 160ms ease;
}

.calculator-field__label {
  display: flex;
  align-items: center;
  gap: 9px;
  color: var(--tools-ink);
  transition: color 160ms ease;
}

.calculator-field__label i {
  display: inline-grid;
  place-items: center;
  width: 24px;
  height: 24px;
  flex: 0 0 24px;
  border-radius: 8px;
  color: var(--tools-green);
  background: rgba(40,95,67,0.09);
  font: 800 0.7rem/1 "Work Sans", sans-serif;
  font-style: normal;
}

.calculator-field input,
.calculator-field select {
  width: 100%;
  height: 54px;
  min-height: 54px;
  box-sizing: border-box;
  border: 1px solid rgba(40,95,67,0.2);
  border-radius: 14px;
  color: var(--tools-ink);
  background: rgba(255,255,255,0.9);
  font: 600 0.95rem/1 "Work Sans", sans-serif;
  transition: border-color 160ms ease, box-shadow 160ms ease, color 160ms ease, background 160ms ease;
}

.calculator-field input {
  padding: 0 58px 0 15px;
}

.calculator-field select {
  padding: 0 48px 0 15px;
  appearance: none;
  background-image: linear-gradient(45deg, transparent 50%, #718078 50%), linear-gradient(135deg, #718078 50%, transparent 50%);
  background-position: calc(100% - 20px) 23px, calc(100% - 14px) 23px;
  background-repeat: no-repeat;
  background-size: 6px 6px, 6px 6px;
}

.calculator-field input:focus,
.calculator-field select:focus {
  outline: none;
  border-color: var(--tools-green);
  box-shadow: 0 0 0 4px rgba(40,95,67,0.1);
}

.calculator-field.is-complete {
  border-color: rgba(40,95,67,0.3);
  background: rgba(231,243,223,0.62);
  box-shadow: 0 8px 18px rgba(40,95,67,0.06);
}

.calculator-field.is-complete .calculator-field__label,
.calculator-field.is-complete input,
.calculator-field.is-complete select {
  color: var(--tools-green);
}

.calculator-field.is-complete .calculator-field__label i {
  color: white;
  background: var(--tools-green);
}

.calculator-field.is-complete input,
.calculator-field.is-complete select {
  border-color: rgba(40,95,67,0.42);
  background-color: rgba(255,255,255,0.94);
}

.calculator-input-wrap {
  position: relative;
}

.calculator-input-wrap b {
  position: absolute;
  top: 50%;
  right: 16px;
  color: var(--tools-muted);
  transform: translateY(-50%);
  font: 700 0.82rem/1 "Work Sans", sans-serif;
}

.calculator-field small {
  color: var(--tools-muted);
  font: 400 0.74rem/1.35 "Work Sans", sans-serif;
}

.calculator-safety-check {
  display: grid;
  grid-template-columns: 22px 1fr;
  gap: 11px;
  margin-top: 24px;
  padding: 15px;
  border-radius: 14px;
  background: #fff4e5;
  color: #68451a;
  font: 400 0.82rem/1.4 "Work Sans", sans-serif;
}

.calculator-safety-check input {
  width: 18px;
  height: 18px;
  margin: 2px 0 0;
  accent-color: var(--tools-green);
}

.calculator-safety-check strong,
.calculator-safety-check small {
  display: block;
}

.calculator-safety-check small {
  margin-top: 4px;
}

.calculator-error {
  margin: 16px 0 0;
  padding: 12px 14px;
  border-radius: 12px;
  color: #8e2626;
  background: #ffeded;
  font: 650 0.82rem/1.35 "Work Sans", sans-serif;
}

.calculator-submit {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  margin-top: 20px;
  padding: 15px 18px;
  border: 0;
  border-radius: 14px;
  color: white;
  background: var(--tools-green);
  cursor: pointer;
  font: 800 0.95rem/1 "Work Sans", sans-serif;
}

.calculator-submit:disabled {
  opacity: 0.65;
  cursor: wait;
}

.calculator-result {
  display: grid;
  align-items: center;
  color: #f7fff6;
  background:
    radial-gradient(circle at 90% 8%, rgba(152,213,122,0.3), transparent 20rem),
    var(--tools-green);
}

.calculator-result__empty,
.calculator-result__blocked {
  max-width: 560px;
  margin: auto;
  text-align: center;
}

.calculator-result__empty > span,
.calculator-result__blocked > span {
  display: inline-grid;
  place-items: center;
  width: 58px;
  height: 58px;
  margin-bottom: 18px;
  border-radius: 18px;
  background: rgba(255,255,255,0.1);
  font-size: 1.8rem;
}

.calculator-result p {
  color: rgba(247,255,246,0.76);
  font: 400 0.9rem/1.5 "Work Sans", sans-serif;
}

.calculator-result__eyebrow {
  color: #d7f4c8;
}

.calculator-result__number {
  display: grid;
  margin: 18px 0 24px;
}

.calculator-result__number strong {
  font: 750 clamp(3.1rem, 7vw, 6.2rem)/0.9 "Work Sans", sans-serif;
  letter-spacing: -0.06em;
}

.calculator-result__number span {
  margin-top: 10px;
  color: rgba(247,255,246,0.74);
  font: 700 0.85rem/1 "Work Sans", sans-serif;
}

.calculator-result__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px;
}

.calculator-result__grid div,
.calculator-result__explanation,
.calculator-result__next {
  padding: 16px;
  border: 1px solid rgba(255,255,255,0.14);
  border-radius: 15px;
  background: rgba(255,255,255,0.08);
}

.calculator-result__grid small,
.calculator-result__grid strong {
  display: block;
}

.calculator-result__grid small {
  color: rgba(247,255,246,0.66);
  font: 650 0.72rem/1.2 "Work Sans", sans-serif;
}

.calculator-result__grid strong {
  margin-top: 8px;
  font: 750 1.22rem/1 "Work Sans", sans-serif;
}

.calculator-result__explanation,
.calculator-result__next {
  margin-top: 10px;
}

.calculator-result h3 {
  margin: 0;
  font: 750 0.95rem/1.2 "Work Sans", sans-serif;
}

.calculator-result__explanation p,
.calculator-result__next p {
  margin: 8px 0 0;
}

.calculator-method,
.calculator-links {
  display: grid;
  grid-template-columns: minmax(220px, 0.6fr) minmax(0, 1.4fr);
  gap: 30px;
  margin-top: 18px;
  padding: clamp(24px, 3.5vw, 40px);
  background: rgba(255,255,255,0.76);
}

.calculator-method__content {
  color: var(--tools-muted);
  font: 400 0.9rem/1.55 "Work Sans", sans-serif;
}

.calculator-method__content p {
  margin: 0;
}

.calculator-method__content p + p {
  margin-top: 12px;
}

.calculator-links__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
}

.calculator-links__grid a {
  display: grid;
  gap: 9px;
  padding: 18px;
  border: 1px solid var(--tools-line);
  border-radius: 16px;
  color: var(--tools-ink);
  background: rgba(255,255,255,0.72);
  text-decoration: none;
}

.calculator-links__grid strong {
  font: 750 0.9rem/1.25 "Work Sans", sans-serif;
}

.calculator-links__grid span {
  color: var(--tools-muted);
  font: 400 0.78rem/1.4 "Work Sans", sans-serif;
}

/* Premium protein calculator visual language */
body.calculator-page {
  --protein-navy: #162b38;
  --protein-sage: #668477;
  --protein-gold: #b58a43;
  --protein-ivory: #f3f0e8;
  background:
    radial-gradient(circle at 5% 0, rgba(181,138,67,0.13), transparent 28rem),
    radial-gradient(circle at 98% 25%, rgba(102,132,119,0.15), transparent 30rem),
    var(--protein-ivory);
}

.calculator-page .tools-topbar {
  border-radius: 22px;
  background: rgba(251,250,246,0.84);
}

.calculator-page .calculator-back {
  color: var(--protein-navy);
  background: rgba(255,255,255,0.82);
}

.calculator-page .calculator-hero__copy {
  border-top: 4px solid var(--protein-gold);
  background: linear-gradient(145deg, rgba(251,250,246,0.97), rgba(245,244,237,0.94));
}

.calculator-page .tools-kicker {
  color: #765723;
  background: rgba(181,138,67,0.14);
}

.calculator-page .calculator-hero h1 {
  color: var(--protein-navy);
  font-size: clamp(3rem, 6vw, 6rem);
  line-height: 0.9;
  letter-spacing: -0.055em;
}

.calculator-page .calculator-hero h1 em {
  position: relative;
  color: var(--protein-sage);
  font-weight: 500;
}

.calculator-page .calculator-hero h1 em::after {
  content: "";
  position: absolute;
  left: 2%;
  right: 0;
  bottom: -7px;
  height: 5px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--protein-gold), rgba(181,138,67,0));
  transform: rotate(-1deg);
}

.calculator-page .calculator-hero__mark {
  align-content: end;
  color: white;
  background: linear-gradient(155deg, #1e3b48, var(--protein-navy));
}

.calculator-page .calculator-hero__mark span {
  align-self: start;
  color: rgba(255,255,255,0.1);
  font: 550 clamp(6.5rem, 12vw, 10rem)/0.8 "Zodiak", Georgia, serif;
  letter-spacing: -0.08em;
}

.calculator-page .calculator-hero__mark strong {
  color: #ead6a7;
  font-size: 2.2rem;
}

.calculator-page .calculator-hero__mark small {
  color: rgba(255,255,255,0.62);
}

.calculator-page .calculator-form {
  border-top: 4px solid var(--protein-gold);
  background: linear-gradient(145deg, rgba(251,250,246,0.96), rgba(248,246,239,0.92));
}

.calculator-page .calculator-form__head::before {
  content: "01 · DANE I CEL";
  display: block;
  margin-bottom: 9px;
  color: var(--protein-gold);
  font: 800 0.68rem/1 "Work Sans", sans-serif;
  letter-spacing: 0.08em;
}

.calculator-page .calculator-form__head h2 {
  color: var(--protein-navy);
}

.calculator-page .calculator-field {
  border-color: rgba(22,43,56,0.1);
  background: rgba(255,255,255,0.76);
}

.calculator-page .calculator-field__label i {
  color: white;
  background: var(--protein-navy);
}

.calculator-page .calculator-field:focus-within {
  border-color: rgba(181,138,67,0.48);
  box-shadow: 0 0 0 3px rgba(181,138,67,0.09);
}

.calculator-page .calculator-field.is-complete {
  border-color: rgba(102,132,119,0.38);
  background: #eef4ef;
}

.calculator-page .calculator-field.is-complete .calculator-field__label,
.calculator-page .calculator-field.is-complete input,
.calculator-page .calculator-field.is-complete select {
  color: #3e6c58;
}

.calculator-page .calculator-field.is-complete .calculator-field__label i {
  background: var(--protein-sage);
}

.calculator-page .calculator-submit {
  color: var(--protein-navy);
  background: #e8d5a8;
  box-shadow: 0 10px 22px rgba(181,138,67,0.16);
}

.calculator-page .calculator-result {
  border-top: 5px solid var(--protein-gold);
  background:
    radial-gradient(circle at 92% 0, rgba(181,138,67,0.18), transparent 24rem),
    linear-gradient(145deg, #244655, var(--protein-navy));
}

.calculator-page .calculator-result__eyebrow {
  color: #e5c985;
}

.calculator-page .calculator-method {
  border-top: 4px solid var(--protein-sage);
  background: rgba(251,250,246,0.86);
}

.calculator-page .calculator-links {
  border-top: 4px solid var(--protein-gold);
  background: rgba(251,250,246,0.86);
}

.calculator-page .calculator-links__grid a {
  transition: transform 160ms ease, border-color 160ms ease, box-shadow 160ms ease;
}

.calculator-page .calculator-links__grid a:hover {
  transform: translateY(-2px);
  border-color: rgba(181,138,67,0.4);
  box-shadow: 0 10px 22px rgba(22,43,56,0.07);
}

html.night-shell .calculator-hero__copy,
html.night-shell .calculator-form,
html.night-shell .calculator-method,
html.night-shell .calculator-links,
html.night-shell .calculator-links__grid a {
  background: rgba(24,34,27,0.9);
}

html.night-shell .calculator-field input,
html.night-shell .calculator-field select {
  color: var(--tools-ink);
  background: #202b23;
}

html.night-shell .calculator-field {
  background: rgba(31,43,34,0.82);
}

html.night-shell .calculator-field.is-complete {
  background: rgba(42,79,52,0.62);
}

@media (max-width: 900px) {
  .calculator-hero,
  .calculator-workspace,
  .calculator-method,
  .calculator-links {
    grid-template-columns: 1fr;
  }

  .calculator-links__grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 620px) {
  .calculator-back {
    max-width: 122px;
    text-align: center;
    line-height: 1.25;
  }

  .calculator-hero__copy,
  .calculator-hero__mark,
  .calculator-form,
  .calculator-result,
  .calculator-method,
  .calculator-links {
    border-radius: 22px;
  }

  .calculator-hero__copy,
  .calculator-form,
  .calculator-result,
  .calculator-method,
  .calculator-links {
    padding: 26px 21px;
  }

  .calculator-result__grid {
    grid-template-columns: 1fr;
  }
}