/* ==========================================================================\n   ARCVOLT — Concrete Calculator\n   Page-specific styles kept separate from the global theme stylesheet.\n   ========================================================================== */

.calculator-hero .inner-hero-bg img {
  object-position: center 58%;
}

.calculator-section {
  overflow: clip;
}

.calculator-intro {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(300px, 0.58fr);
  gap: clamp(40px, 7vw, 100px);
  align-items: end;
  margin-bottom: 64px;
}

.calculator-intro .lead {
  margin: 0;
}

.calculator-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.04fr) minmax(360px, 0.76fr);
  gap: 24px;
  align-items: start;
}

.concrete-calculator,
.calculator-results {
  border: 1px solid rgba(10, 12, 11, 0.14);
  border-radius: 30px 30px 92px 30px;
}

.concrete-calculator {
  padding: clamp(26px, 4vw, 48px);
  background: rgba(255, 255, 255, 0.48);
  box-shadow: 0 26px 70px rgba(12, 16, 13, 0.06);
}

.calculator-form-head {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  align-items: flex-start;
  margin-bottom: 30px;
}

.calculator-form-head-compact {
  margin-bottom: 22px;
}

.calculator-kicker {
  display: block;
  margin-bottom: 8px;
  color: #677068;
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.13em;
  text-transform: uppercase;
}

.calculator-form-head h3 {
  margin: 0;
  font: 600 clamp(28px, 3vw, 40px) / 1 "Space Grotesk", sans-serif;
  letter-spacing: -0.045em;
}

.calculator-live {
  display: inline-flex;
  gap: 8px;
  align-items: center;
  padding: 10px 12px;
  border: 1px solid rgba(10, 12, 11, 0.12);
  border-radius: 999px;
  color: #556057;
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.calculator-live i {
  color: #7ea300;
  font-size: 7px;
  animation: calculatorPulse 2.2s ease-in-out infinite;
}

@keyframes calculatorPulse {
  0%,
  100% {
    opacity: 0.5;
    transform: scale(0.8);
  }

  50% {
    opacity: 1;
    transform: scale(1.15);
  }
}

.shape-selector {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin: 0 0 28px;
  padding: 0;
  border: 0;
}

.shape-selector legend {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.shape-option {
  position: relative;
  display: grid;
  grid-template-columns: 48px 1fr;
  gap: 14px;
  align-items: center;
  min-height: 82px;
  padding: 16px;
  border: 1px solid rgba(10, 12, 11, 0.13);
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.42);
  cursor: pointer;
  transition:
    transform 0.38s var(--ease),
    border-color 0.38s ease,
    background-color 0.38s ease,
    box-shadow 0.38s var(--ease);
}

.shape-option:hover {
  transform: translateY(-3px);
  border-color: rgba(10, 12, 11, 0.28);
  box-shadow: 0 18px 38px rgba(10, 12, 11, 0.08);
}

.shape-option:has(input:checked) {
  border-color: var(--ink);
  background: var(--ink);
  color: #fff;
}

.shape-option input {
  position: absolute;
  inset: 0;
  opacity: 0;
  cursor: pointer;
}

.shape-option b,
.shape-option small {
  display: block;
}

.shape-option b {
  font: 700 16px / 1.2 "Space Grotesk", sans-serif;
}

.shape-option small {
  margin-top: 4px;
  color: #697269;
  font-size: 11px;
}

.shape-option:has(input:checked) small {
  color: #9ba59c;
}

.shape-glyph {
  position: relative;
  width: 44px;
  height: 44px;
  border: 1px solid rgba(10, 12, 11, 0.22);
  transition:
    transform 0.42s var(--ease),
    border-color 0.35s ease,
    border-radius 0.42s var(--ease);
}

.shape-glyph-rect {
  border-radius: 9px 9px 18px 9px;
}

.shape-glyph-rect::before,
.shape-glyph-rect::after {
  content: "";
  position: absolute;
  background: currentColor;
  opacity: 0.55;
}

.shape-glyph-rect::before {
  width: 1px;
  inset-block: 8px;
  left: 50%;
}

.shape-glyph-rect::after {
  height: 1px;
  inset-inline: 8px;
  top: 50%;
}

.shape-glyph-circle {
  border-radius: 50%;
}

.shape-glyph-circle::before {
  content: "";
  position: absolute;
  inset: 9px;
  border: 1px dashed currentColor;
  border-radius: 50%;
  opacity: 0.58;
}

.shape-option:has(input:checked) .shape-glyph {
  border-color: var(--acid);
  color: var(--acid);
  transform: rotate(-5deg) scale(1.04);
}

.calculator-toolbar,
.field-grid {
  display: grid;
  gap: 14px;
}

.calculator-toolbar {
  grid-template-columns: 1fr 0.55fr;
  margin-bottom: 14px;
}

.field-grid-three {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.field-grid-four {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.field-grid-two {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.calculator-toolbar label,
.field-grid label {
  display: grid;
  gap: 8px;
  min-width: 0;
}

.calculator-toolbar label > span,
.field-grid label > span {
  color: #4f5951;
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.045em;
  text-transform: uppercase;
}

.calculator-toolbar em,
.field-grid em {
  color: #7a837b;
  font-style: normal;
  font-weight: 600;
  text-transform: none;
}

.calculator-toolbar input,
.calculator-toolbar select,
.field-grid input,
.field-grid select {
  width: 100%;
  min-height: 58px;
  padding: 0 16px;
  border: 1px solid rgba(10, 12, 11, 0.14);
  border-radius: 13px;
  outline: none;
  background: rgba(255, 255, 255, 0.72);
  color: var(--ink);
  font: 700 16px / 1 "Manrope", sans-serif;
  transition:
    border-color 0.3s ease,
    box-shadow 0.3s ease,
    background-color 0.3s ease;
}

.calculator-toolbar input:focus,
.calculator-toolbar select:focus,
.field-grid input:focus,
.field-grid select:focus {
  border-color: #637e00;
  background: #fff;
  box-shadow: 0 0 0 4px rgba(200, 255, 46, 0.22);
}

.dimension-group[hidden],
.cost-result[hidden],
.calculator-error[hidden] {
  display: none;
}

.calculator-divider {
  height: 1px;
  margin: 34px 0;
  background: rgba(10, 12, 11, 0.13);
}

.calculator-error {
  margin: 18px 0 0;
  padding: 12px 14px;
  border-left: 3px solid #9f321f;
  background: rgba(159, 50, 31, 0.07);
  color: #7e291b;
  font-size: 13px;
}

.calculator-actions {
  display: flex;
  gap: 16px;
  align-items: center;
  margin-top: 30px;
}

.calculator-reset {
  padding: 12px 4px;
  border: 0;
  background: transparent;
  color: #5d665e;
  cursor: pointer;
  font: 800 11px / 1 "Manrope", sans-serif;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  transition: color 0.3s ease;
}

.calculator-reset:hover,
.calculator-reset:focus-visible {
  color: var(--ink);
}

.calculator-results {
  position: sticky;
  top: 110px;
  min-height: 560px;
  padding: clamp(28px, 4vw, 46px);
  overflow: hidden;
  background:
    radial-gradient(circle at 90% 8%, rgba(200, 255, 46, 0.16), transparent 30%),
    var(--ink);
  color: #fff;
  box-shadow: 0 34px 85px rgba(6, 8, 7, 0.2);
}

.calculator-results::after {
  content: "";
  position: absolute;
  right: -120px;
  bottom: -160px;
  width: 340px;
  height: 340px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 50%;
  box-shadow:
    0 0 0 38px rgba(255, 255, 255, 0.025),
    0 0 0 82px rgba(255, 255, 255, 0.018);
  pointer-events: none;
}

.result-top {
  position: relative;
  z-index: 1;
  display: flex;
  justify-content: space-between;
  gap: 20px;
  color: #98a199;
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.11em;
  text-transform: uppercase;
}

.result-top span:last-child {
  color: var(--acid);
}

.primary-result {
  position: relative;
  z-index: 1;
  display: flex;
  gap: 12px;
  align-items: end;
  margin: 44px 0 8px;
}

.primary-result strong {
  font: 600 clamp(76px, 8vw, 118px) / 0.78 "Space Grotesk", sans-serif;
  letter-spacing: -0.075em;
}

.primary-result span {
  padding-bottom: 10px;
  color: var(--acid);
  font: 700 24px / 1 "Space Grotesk", sans-serif;
}

#resultSummary {
  position: relative;
  z-index: 1;
  max-width: 460px;
  margin: 22px 0 34px;
  color: #aeb6af;
  font-size: 14px;
}

.result-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr 1fr;
  border-top: 1px solid rgba(255, 255, 255, 0.14);
  border-left: 1px solid rgba(255, 255, 255, 0.14);
}

.result-grid > div {
  min-height: 98px;
  padding: 18px;
  border-right: 1px solid rgba(255, 255, 255, 0.14);
  border-bottom: 1px solid rgba(255, 255, 255, 0.14);
  transition: background-color 0.35s ease;
}

.result-grid > div:hover {
  background: rgba(255, 255, 255, 0.04);
}

.result-grid span,
.cost-result span,
.cost-result small {
  display: block;
  color: #899289;
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.result-grid strong {
  display: block;
  margin-top: 8px;
  font: 600 21px / 1.1 "Space Grotesk", sans-serif;
}

.cost-result {
  position: relative;
  z-index: 1;
  margin-top: 20px;
  padding: 18px 0 0;
  border-top: 1px solid rgba(255, 255, 255, 0.14);
}

.cost-result strong {
  display: block;
  margin: 8px 0 5px;
  color: var(--acid);
  font: 600 34px / 1 "Space Grotesk", sans-serif;
}

.cost-result small {
  text-transform: none;
  letter-spacing: 0;
  font-weight: 500;
}

.calculator-note {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 28px 1fr;
  gap: 12px;
  margin-top: 28px;
  padding-top: 22px;
  border-top: 1px solid rgba(255, 255, 255, 0.13);
}

.calculator-note i {
  color: var(--acid);
}

.calculator-note p {
  margin: 0;
  color: #8f988f;
  font-size: 12px;
  line-height: 1.65;
}

.calculator-note strong {
  color: #d4dad4;
}

.calculator-method-head {
  display: grid;
  grid-template-columns: 0.45fr 1.55fr;
  gap: clamp(40px, 7vw, 100px);
  align-items: start;
  margin-bottom: 64px;
}

.calculator-method-head h2 {
  max-width: 920px;
  margin: 0;
  font: 600 clamp(52px, 6vw, 88px) / 0.94 "Space Grotesk", sans-serif;
  letter-spacing: -0.06em;
}

.calculator-method-head .outline {
  color: rgba(255, 255, 255, 0.04);
  -webkit-text-stroke: 1px rgba(255, 255, 255, 0.5);
}

.method-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-top: 1px solid rgba(255, 255, 255, 0.14);
  border-left: 1px solid rgba(255, 255, 255, 0.14);
}

.method-item {
  min-height: 390px;
  padding: 30px;
  border-right: 1px solid rgba(255, 255, 255, 0.14);
  border-bottom: 1px solid rgba(255, 255, 255, 0.14);
  transition:
    transform 0.45s var(--ease),
    background-color 0.45s ease;
}

.method-item:hover {
  transform: translateY(-7px);
  background: rgba(255, 255, 255, 0.035);
}

.method-item > span {
  color: #6f786f;
  font-size: 11px;
}

.method-icon {
  position: relative;
  width: 68px;
  height: 68px;
  margin: 68px 0 34px;
  border: 1px solid rgba(200, 255, 46, 0.52);
  color: var(--acid);
  transition:
    transform 0.45s var(--ease),
    border-radius 0.45s var(--ease);
}

.method-item:hover .method-icon {
  transform: rotate(-6deg) translateY(-4px);
  border-radius: 50%;
}

.method-icon-volume {
  border-radius: 14px 14px 28px 14px;
}

.method-icon-volume::before,
.method-icon-volume::after {
  content: "";
  position: absolute;
  background: currentColor;
  opacity: 0.72;
}

.method-icon-volume::before {
  left: 15px;
  right: 15px;
  top: 50%;
  height: 1px;
}

.method-icon-volume::after {
  top: 15px;
  bottom: 15px;
  left: 50%;
  width: 1px;
}

.method-icon-waste {
  border-radius: 50% 50% 50% 16px;
}

.method-icon-waste::before {
  content: "+5%";
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  font: 800 14px / 1 "Manrope", sans-serif;
}

.method-icon-mass {
  border-radius: 50%;
}

.method-icon-mass::before {
  content: "kg";
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  font: 800 14px / 1 "Manrope", sans-serif;
}

.method-item h3 {
  margin: 0 0 12px;
  font: 600 30px / 1 "Space Grotesk", sans-serif;
}

.method-item p {
  margin: 0;
  color: #99a299;
}

.calculator-reference {
  display: grid;
  grid-template-columns: minmax(0, 1.3fr) minmax(280px, 0.7fr);
  gap: 50px;
  margin-top: 50px;
  padding-top: 30px;
  border-top: 1px solid rgba(255, 255, 255, 0.14);
}

.calculator-reference p {
  margin: 0;
  color: #9da69e;
  font-size: 13px;
  line-height: 1.75;
}

.calculator-reference strong {
  color: #e8ece8;
}

.calculator-reference > div {
  display: grid;
  align-content: start;
  gap: 10px;
}

.calculator-reference a {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  padding: 12px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
  color: #d4dad4;
  font-size: 12px;
  font-weight: 700;
  transition:
    color 0.3s ease,
    padding-left 0.35s var(--ease);
}

.calculator-reference a:hover {
  padding-left: 7px;
  color: var(--acid);
}

@media (max-width: 1100px) {
  .calculator-intro,
  .calculator-method-head {
    grid-template-columns: 1fr;
    gap: 24px;
  }

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

  .calculator-results {
    position: relative;
    top: auto;
  }
}

@media (max-width: 900px) {
  .field-grid-four {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 760px) {
  .field-grid-three,
  .method-grid {
    grid-template-columns: 1fr;
  }

  .field-grid-two {
    grid-template-columns: 1fr 1fr;
  }

  .calculator-reference {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .method-item {
    min-height: 320px;
  }
}

@media (max-width: 560px) {
  .shape-selector,
  .calculator-toolbar,
  .field-grid-two,
  .field-grid-four,
  .result-grid {
    grid-template-columns: 1fr;
  }

  .concrete-calculator,
  .calculator-results {
    border-radius: 24px 24px 68px 24px;
  }

  .calculator-actions {
    align-items: stretch;
    flex-direction: column;
  }

  .calculator-actions .btn {
    width: 100%;
  }

  .calculator-reset {
    min-height: 44px;
  }

  .primary-result strong {
    font-size: clamp(68px, 22vw, 96px);
  }
}

@media (prefers-reduced-motion: reduce) {
  .calculator-live i {
    animation: none;
  }
}