/* NUCLEUS - Kalkulator snage elektricnog grijaca zraka
   Verzija za PrestaShop 8.2 / Warehouse temu.
   Sve selektore drzimo unutar .nuc-heatcalc da ne diramo temu i da tema ne dira nas. */

.nuc-heatcalc,
.nuc-heatcalc * {
  box-sizing: border-box;
}

.nuc-heatcalc {
  --nuc-navy: #0a2f4f;
  --nuc-navy-2: #123f65;
  --nuc-blue: #1976b9;
  --nuc-blue-dark: #115d92;
  --nuc-sky: #eaf5fc;
  --nuc-sky-2: #f5faff;
  --nuc-warm: #f59e0b;
  --nuc-warm-soft: #fff5dc;
  --nuc-red: #c64032;
  --nuc-green: #18855b;
  --nuc-text: #183244;
  --nuc-muted: #617789;
  --nuc-line: #d9e6ef;
  --nuc-white: #ffffff;
  --nuc-shadow: 0 18px 50px rgba(12, 48, 75, 0.12);
  --nuc-radius-lg: 28px;
  --nuc-radius-md: 18px;
  --nuc-radius-sm: 12px;

  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  color: var(--nuc-text);
  font-family: Arial, Helvetica, sans-serif;
  font-size: 17px;
  line-height: 1.65;
}

/* Neutralizacija naslijedjenih stilova teme (Bootstrap / Warehouse) */
.nuc-heatcalc fieldset {
  min-width: 0;
  padding: 0;
  margin: 0;
  border: 0;
}

.nuc-heatcalc legend {
  display: block;
  width: 100%;
  max-width: 100%;
  padding: 0;
  margin: 0;
  border: 0;
  font-size: inherit;
  white-space: normal;
}

.nuc-heatcalc button {
  -webkit-appearance: none;
  appearance: none;
}

.nuc-heatcalc a,
.nuc-heatcalc a:hover,
.nuc-heatcalc a:focus {
  color: inherit;
  text-decoration: none;
}

.nuc-heatcalc h1,
.nuc-heatcalc h2,
.nuc-heatcalc h3,
.nuc-heatcalc p {
  margin-top: 0;
}

.nuc-heatcalc h1,
.nuc-heatcalc h2,
.nuc-heatcalc h3 {
  color: var(--nuc-navy);
  line-height: 1.16;
  font-weight: 800;
  letter-spacing: -0.025em;
  text-transform: none;
}

.nuc-heatcalc h1 {
  margin-bottom: 20px;
  font-size: clamp(30px, 5vw, 60px);
}

.nuc-heatcalc h2 {
  margin-bottom: 16px;
  font-size: clamp(26px, 3.2vw, 40px);
}

.nuc-heatcalc h3 {
  margin-bottom: 10px;
  font-size: 22px;
}

.nuc-heatcalc .nuc-container {
  width: 100%;
  margin: 0 auto;
}

.nuc-heatcalc .nuc-kicker {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  margin-bottom: 15px;
  color: var(--nuc-blue-dark);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.11em;
  text-transform: uppercase;
}

.nuc-heatcalc .nuc-kicker::before {
  width: 34px;
  height: 3px;
  border-radius: 99px;
  background: var(--nuc-warm);
  content: "";
}

.nuc-heatcalc .nuc-kicker--light {
  color: #aeddff;
}

/* HERO */
.nuc-heatcalc .nuc-hero {
  position: relative;
  overflow: hidden;
  margin-bottom: 42px;
  border-radius: var(--nuc-radius-lg);
  background:
    radial-gradient(circle at 88% 20%, rgba(91, 190, 244, 0.24), transparent 28%),
    radial-gradient(circle at 76% 100%, rgba(245, 158, 11, 0.18), transparent 28%),
    linear-gradient(130deg, #082a47 0%, #0f426a 60%, #176797 100%);
  color: var(--nuc-white);
  box-shadow: var(--nuc-shadow);
}

.nuc-heatcalc .nuc-hero::before,
.nuc-heatcalc .nuc-hero::after {
  position: absolute;
  border: 1px solid rgba(255, 255, 255, 0.13);
  border-radius: 50%;
  content: "";
}

.nuc-heatcalc .nuc-hero::before {
  width: 310px;
  height: 310px;
  right: -80px;
  top: -120px;
}

.nuc-heatcalc .nuc-hero::after {
  width: 190px;
  height: 190px;
  right: 215px;
  bottom: -115px;
}

.nuc-heatcalc .nuc-hero-grid {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(280px, 0.6fr);
  gap: 48px;
  align-items: center;
  padding: clamp(32px, 6vw, 74px);
}

.nuc-heatcalc .nuc-hero h1,
.nuc-heatcalc .nuc-hero h2,
.nuc-heatcalc .nuc-hero h3 {
  color: var(--nuc-white);
}

.nuc-heatcalc .nuc-hero p {
  max-width: 720px;
  margin-bottom: 27px;
  color: rgba(255, 255, 255, 0.88);
  font-size: clamp(17px, 2vw, 21px);
  line-height: 1.58;
}

.nuc-heatcalc .nuc-hero-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.nuc-heatcalc .nuc-hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 13px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.09);
  color: var(--nuc-white);
  font-size: 14px;
  font-weight: 700;
}

.nuc-heatcalc .nuc-hero-tag::before {
  color: #ffd68b;
  content: "\25CF";
}

.nuc-heatcalc .nuc-formula-card {
  position: relative;
  padding: 28px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 24px;
  background: rgba(255, 255, 255, 0.11);
  box-shadow: 0 22px 60px rgba(0, 0, 0, 0.16);
}

.nuc-heatcalc .nuc-icon {
  display: grid;
  place-items: center;
  line-height: 1;
}

.nuc-heatcalc .nuc-formula-icon {
  width: 62px;
  height: 62px;
  margin-bottom: 18px;
  border-radius: 18px;
  background: var(--nuc-warm);
  font-size: 30px;
}

.nuc-heatcalc .nuc-formula-icon::before {
  content: "\1F321\FE0F";
}

.nuc-heatcalc .nuc-formula-title {
  margin-bottom: 8px;
  color: var(--nuc-white);
  font-size: 18px;
  font-weight: 800;
}

.nuc-heatcalc .nuc-formula {
  margin-bottom: 12px;
  color: #ffffff;
  font-size: 26px;
  font-weight: 800;
  letter-spacing: -0.03em;
}

.nuc-heatcalc .nuc-formula-small {
  margin: 0;
  color: rgba(255, 255, 255, 0.76);
  font-size: 14px;
  line-height: 1.55;
}

/* INTRO */
.nuc-heatcalc .nuc-intro {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin-bottom: 42px;
}

.nuc-heatcalc .nuc-info-card {
  padding: 28px;
  border: 1px solid var(--nuc-line);
  border-radius: var(--nuc-radius-md);
  background: var(--nuc-white);
}

.nuc-heatcalc .nuc-info-card p:last-child {
  margin-bottom: 0;
}

.nuc-heatcalc .nuc-info-card--accent {
  border-color: #f3d292;
  background: var(--nuc-warm-soft);
}

.nuc-heatcalc .nuc-info-icon {
  width: 46px;
  height: 46px;
  margin-bottom: 17px;
  border-radius: 14px;
  background: var(--nuc-sky);
  font-size: 22px;
}

.nuc-heatcalc .nuc-info-icon--house::before {
  content: "\1F3E0";
}

.nuc-heatcalc .nuc-info-card--accent .nuc-info-icon {
  background: #ffe7b4;
}

.nuc-heatcalc .nuc-info-icon--warning::before {
  content: "\26A0\FE0F";
}

/* KALKULATOR */
.nuc-heatcalc .nuc-calculator-section {
  margin-bottom: 48px;
  padding: clamp(18px, 4vw, 42px);
  border: 1px solid var(--nuc-line);
  border-radius: var(--nuc-radius-lg);
  background: #f6fbff;
  box-shadow: var(--nuc-shadow);
}

.nuc-heatcalc .nuc-section-head {
  max-width: 800px;
  margin-bottom: 30px;
}

.nuc-heatcalc .nuc-section-head p {
  margin-bottom: 0;
  color: var(--nuc-muted);
  font-size: 18px;
}

.nuc-heatcalc .nuc-calculator-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.45fr) minmax(310px, 0.75fr);
  gap: 28px;
  align-items: start;
}

.nuc-heatcalc .nuc-form-panel,
.nuc-heatcalc .nuc-result-panel {
  min-width: 0;
  border: 1px solid var(--nuc-line);
  border-radius: 22px;
  background: var(--nuc-white);
}

.nuc-heatcalc .nuc-form-panel {
  padding: clamp(18px, 3vw, 32px);
}

.nuc-heatcalc .nuc-result-panel {
  position: sticky;
  top: 18px;
  overflow: hidden;
}

.nuc-heatcalc .nuc-form-group {
  padding: 0 0 27px;
  margin: 0 0 27px;
  border: 0;
  border-bottom: 1px solid var(--nuc-line);
}

.nuc-heatcalc .nuc-form-group:last-of-type,
.nuc-heatcalc .nuc-form-group--last {
  margin-bottom: 22px;
  padding-bottom: 0;
  border-bottom: 0;
}

.nuc-heatcalc .nuc-form-legend {
  display: flex;
  align-items: center;
  gap: 11px;
  width: 100%;
  margin-bottom: 17px;
  color: var(--nuc-navy);
  font-size: 19px;
  font-weight: 800;
  line-height: 1.3;
}

.nuc-heatcalc .nuc-step {
  display: grid;
  flex: 0 0 30px;
  width: 30px;
  height: 30px;
  border-radius: 10px;
  background: var(--nuc-navy);
  color: var(--nuc-white);
  font-size: 14px;
  place-items: center;
}

.nuc-heatcalc .nuc-fields {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 17px;
}

.nuc-heatcalc .nuc-fields--3 {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.nuc-heatcalc .nuc-field--wide {
  grid-column: 1 / -1;
}

.nuc-heatcalc .nuc-field label {
  display: block;
  margin-bottom: 7px;
  color: #2c4658;
  font-size: 14px;
  font-weight: 800;
  line-height: 1.35;
  text-transform: none;
}

/* Kad su polja jedno do drugog, labeli se rezervira visina dva retka i tekst se
   poravnava uz donji rub, pa su sva polja u istom retku poravnata bez obzira
   lomi li se labela u jedan ili dva retka. */
@media (min-width: 761px) {
  .nuc-heatcalc .nuc-field label {
    display: flex;
    align-items: flex-end;
    min-height: 2.7em;
  }
}

.nuc-heatcalc .nuc-field input,
.nuc-heatcalc .nuc-field select {
  display: block;
  width: 100%;
  height: auto;
  min-height: 49px;
  max-width: none;
  padding: 11px 13px;
  border: 1px solid #cbdbe6;
  border-radius: 11px;
  outline: none;
  background-color: #ffffff;
  background-image: none;
  color: var(--nuc-text);
  font-family: inherit;
  font-size: 16px;
  line-height: 1.4;
  box-shadow: none;
  transition: border-color 0.18s ease, box-shadow 0.18s ease;
}

.nuc-heatcalc .nuc-field select {
  -webkit-appearance: menulist;
  appearance: menulist;
}

.nuc-heatcalc .nuc-field input:focus,
.nuc-heatcalc .nuc-field select:focus {
  border-color: var(--nuc-blue);
  box-shadow: 0 0 0 4px rgba(25, 118, 185, 0.12);
}

/* Polje s neispravnim ili praznim unosom */
.nuc-heatcalc .nuc-field.is-invalid label {
  color: var(--nuc-red);
}

.nuc-heatcalc .nuc-field.is-invalid input,
.nuc-heatcalc .nuc-field.is-invalid select {
  border-color: var(--nuc-red);
  background-color: #fff6f5;
  box-shadow: 0 0 0 3px rgba(198, 64, 50, 0.12);
}

.nuc-heatcalc .nuc-field.is-invalid input:focus,
.nuc-heatcalc .nuc-field.is-invalid select:focus {
  border-color: var(--nuc-red);
  box-shadow: 0 0 0 4px rgba(198, 64, 50, 0.2);
}

.nuc-heatcalc .nuc-field.is-invalid .nuc-unit {
  color: var(--nuc-red);
}

.nuc-heatcalc .nuc-field-hint {
  display: block;
  margin-top: 6px;
  color: var(--nuc-muted);
  font-size: 12px;
  line-height: 1.45;
}

.nuc-heatcalc .nuc-input-wrap {
  position: relative;
}

.nuc-heatcalc .nuc-input-wrap input {
  padding-right: 43px;
}

.nuc-heatcalc .nuc-unit {
  position: absolute;
  right: 13px;
  top: 50%;
  color: #718595;
  font-size: 14px;
  font-weight: 700;
  pointer-events: none;
  transform: translateY(-50%);
}

.nuc-heatcalc .nuc-form-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.nuc-heatcalc .nuc-btn {
  display: inline-flex;
  min-height: 50px;
  align-items: center;
  justify-content: center;
  gap: 9px;
  padding: 12px 20px;
  border: 0;
  border-radius: 12px;
  cursor: pointer;
  font-family: inherit;
  font-size: 16px;
  font-weight: 800;
  line-height: 1.2;
  text-align: center;
  text-transform: none;
  transition: transform 0.18s ease, background 0.18s ease, box-shadow 0.18s ease;
}

.nuc-heatcalc .nuc-btn:hover {
  transform: translateY(-1px);
}

.nuc-heatcalc .nuc-btn--primary {
  flex: 1 1 260px;
  background: var(--nuc-navy);
  box-shadow: 0 10px 24px rgba(10, 47, 79, 0.2);
}

.nuc-heatcalc .nuc-btn--primary:hover,
.nuc-heatcalc .nuc-btn--primary:focus {
  background: var(--nuc-navy-2);
}

/* Tema boji poveznice svojom bojom, pa se boja teksta na gumbu mora nametnuti. */
.nuc-heatcalc .nuc-btn--primary,
.nuc-heatcalc a.nuc-btn--primary,
.nuc-heatcalc a.nuc-btn--primary:link,
.nuc-heatcalc a.nuc-btn--primary:visited,
.nuc-heatcalc a.nuc-btn--primary:hover,
.nuc-heatcalc a.nuc-btn--primary:focus,
.nuc-heatcalc a.nuc-btn--primary:active {
  color: #ffffff !important;
}

.nuc-heatcalc .nuc-btn--secondary {
  flex: 0 0 auto;
  border: 1px solid var(--nuc-line);
  background: #ffffff;
}

.nuc-heatcalc .nuc-btn--secondary:hover,
.nuc-heatcalc .nuc-btn--secondary:focus {
  background: var(--nuc-sky);
}

.nuc-heatcalc .nuc-btn--secondary,
.nuc-heatcalc a.nuc-btn--secondary,
.nuc-heatcalc a.nuc-btn--secondary:link,
.nuc-heatcalc a.nuc-btn--secondary:visited,
.nuc-heatcalc a.nuc-btn--secondary:hover,
.nuc-heatcalc a.nuc-btn--secondary:focus {
  color: var(--nuc-navy) !important;
}

/* REZULTAT */
.nuc-heatcalc .nuc-result-top {
  padding: 28px;
  background: linear-gradient(145deg, var(--nuc-navy), #145d8e);
  color: var(--nuc-white);
}

.nuc-heatcalc .nuc-result-label {
  margin-bottom: 8px;
  color: rgba(255, 255, 255, 0.72);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.nuc-heatcalc .nuc-result-power {
  display: flex;
  align-items: baseline;
  gap: 8px;
  margin-bottom: 8px;
  color: var(--nuc-white);
  font-size: clamp(40px, 6vw, 60px);
  font-weight: 900;
  letter-spacing: -0.055em;
  line-height: 1;
}

.nuc-heatcalc .nuc-result-power small {
  font-size: 24px;
  letter-spacing: -0.02em;
}

.nuc-heatcalc .nuc-result-sub {
  margin: 0;
  color: rgba(255, 255, 255, 0.82);
  font-size: 14px;
}

.nuc-heatcalc .nuc-result-body {
  padding: 24px;
}

.nuc-heatcalc .nuc-metrics {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin-bottom: 18px;
}

.nuc-heatcalc .nuc-metric {
  padding: 13px;
  border: 1px solid var(--nuc-line);
  border-radius: 12px;
  background: var(--nuc-sky-2);
}

.nuc-heatcalc .nuc-metric span {
  display: block;
  margin-bottom: 3px;
  color: var(--nuc-muted);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.nuc-heatcalc .nuc-metric strong {
  color: var(--nuc-navy);
  font-size: 18px;
}

.nuc-heatcalc .nuc-result-note {
  display: flex;
  gap: 10px;
  margin-bottom: 19px;
  padding: 13px;
  border: 1px solid #f2d08a;
  border-radius: 12px;
  background: var(--nuc-warm-soft);
  color: #6f4a00;
  font-size: 13px;
  line-height: 1.5;
}

.nuc-heatcalc .nuc-result-note::before {
  flex: 0 0 auto;
  font-size: 15px;
  content: "\2139\FE0F";
}

.nuc-heatcalc .nuc-recommend-title {
  margin-bottom: 11px;
  color: var(--nuc-navy);
  font-size: 16px;
  font-weight: 900;
}

.nuc-heatcalc .nuc-products {
  display: grid;
  gap: 11px;
}

.nuc-heatcalc .nuc-product-card {
  display: block;
  padding: 15px;
  border: 1px solid var(--nuc-line);
  border-radius: 14px;
  background: #ffffff;
  transition: transform 0.18s ease, border-color 0.18s ease, box-shadow 0.18s ease;
}

.nuc-heatcalc .nuc-product-card:hover {
  border-color: #9fcce8;
  box-shadow: 0 10px 25px rgba(18, 73, 109, 0.11);
  transform: translateY(-2px);
}

.nuc-heatcalc .nuc-product-badge {
  display: inline-block;
  margin-bottom: 7px;
  padding: 4px 8px;
  border-radius: 999px;
  background: var(--nuc-sky);
  color: var(--nuc-blue-dark);
  font-size: 11px;
  font-weight: 900;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.nuc-heatcalc .nuc-product-card--main .nuc-product-badge {
  background: #dff5eb;
  color: var(--nuc-green);
}

.nuc-heatcalc .nuc-product-name {
  display: block;
  margin-bottom: 4px;
  color: var(--nuc-navy);
  font-size: 17px;
  font-weight: 900;
  line-height: 1.3;
}

.nuc-heatcalc .nuc-product-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 7px 13px;
  color: var(--nuc-muted);
  font-size: 13px;
}

.nuc-heatcalc .nuc-product-link {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  margin-top: 10px;
  color: var(--nuc-blue-dark);
  font-size: 13px;
  font-weight: 900;
}

.nuc-heatcalc .nuc-product-warning {
  margin-top: 12px;
  padding: 12px;
  border-radius: 11px;
  background: #fff0ed;
  color: #8d3329;
  font-size: 12px;
  line-height: 1.5;
}

/* SADRZAJNE SEKCIJE */
.nuc-heatcalc .nuc-content-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin-bottom: 46px;
}

.nuc-heatcalc .nuc-content-card {
  padding: clamp(22px, 4vw, 37px);
  border: 1px solid var(--nuc-line);
  border-radius: var(--nuc-radius-md);
  background: #ffffff;
}

.nuc-heatcalc .nuc-content-card p:last-child,
.nuc-heatcalc .nuc-content-card ul:last-child {
  margin-bottom: 0;
}

.nuc-heatcalc .nuc-checklist {
  padding: 0;
  margin: 18px 0 0;
  list-style: none;
}

.nuc-heatcalc .nuc-checklist li {
  position: relative;
  margin-bottom: 13px;
  padding-left: 31px;
  list-style: none;
}

.nuc-heatcalc .nuc-checklist li::before {
  position: absolute;
  left: 0;
  top: 3px;
  display: grid;
  width: 21px;
  height: 21px;
  border-radius: 50%;
  background: var(--nuc-sky);
  color: var(--nuc-blue-dark);
  content: "\2713";
  font-size: 12px;
  font-weight: 900;
  place-items: center;
}

.nuc-heatcalc .nuc-alert {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 17px;
  align-items: start;
  margin-bottom: 46px;
  padding: clamp(22px, 4vw, 36px);
  border-radius: var(--nuc-radius-md);
  background: linear-gradient(135deg, #fff3dc, #fffaf1);
  border: 1px solid #f1cf91;
}

.nuc-heatcalc .nuc-alert-icon {
  width: 50px;
  height: 50px;
  border-radius: 15px;
  background: #ffd88a;
  font-size: 24px;
}

.nuc-heatcalc .nuc-alert-icon::before {
  content: "\1F4A8";
}

.nuc-heatcalc .nuc-alert h3 {
  margin-bottom: 8px;
}

.nuc-heatcalc .nuc-alert p {
  margin-bottom: 0;
}

.nuc-heatcalc .nuc-method {
  margin-bottom: 46px;
  padding: clamp(22px, 5vw, 45px);
  border-radius: var(--nuc-radius-lg);
  background: var(--nuc-navy);
  color: rgba(255, 255, 255, 0.84);
}

.nuc-heatcalc .nuc-method h2,
.nuc-heatcalc .nuc-method h3 {
  color: #ffffff;
}

.nuc-heatcalc .nuc-method-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 15px;
  margin-top: 25px;
}

.nuc-heatcalc .nuc-method-step {
  padding: 20px;
  border: 1px solid rgba(255, 255, 255, 0.13);
  border-radius: 15px;
  background: rgba(255, 255, 255, 0.06);
}

.nuc-heatcalc .nuc-method-step strong {
  display: block;
  margin-bottom: 7px;
  color: #ffd383;
  font-size: 14px;
}

.nuc-heatcalc .nuc-method-step p {
  margin: 0;
  color: rgba(255, 255, 255, 0.78);
  font-size: 14px;
}

.nuc-heatcalc .nuc-cta {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 25px;
  align-items: center;
  padding: clamp(24px, 5vw, 48px);
  border-radius: var(--nuc-radius-lg);
  background: var(--nuc-sky);
  border: 1px solid #c9e4f4;
}

.nuc-heatcalc .nuc-cta h2 {
  margin-bottom: 9px;
}

.nuc-heatcalc .nuc-cta p {
  margin-bottom: 0;
  color: var(--nuc-muted);
}

.nuc-heatcalc .nuc-cta .nuc-btn {
  min-width: 225px;
}

.nuc-heatcalc .nuc-smallprint {
  margin: 24px auto 0;
  padding: 17px 22px;
  border: 1px solid var(--nuc-red);
  border-radius: var(--nuc-radius-sm);
  background: #fff6f5;
  color: #8d3329;
  font-size: 15px;
  line-height: 1.55;
  text-align: left;
}

.nuc-heatcalc .nuc-error {
  display: none;
  margin-bottom: 16px;
  padding: 12px 14px;
  border: 1px solid #e7aaa3;
  border-radius: 10px;
  background: #fff1ef;
  color: #91382e;
  font-size: 14px;
  font-weight: 700;
}

.nuc-heatcalc .nuc-error.is-visible {
  display: block;
}

/* Poruka unutar rubrike - ispod svih polja te rubrike */
.nuc-heatcalc .nuc-error--group {
  margin: 18px 0 0;
}

@media (max-width: 980px) {
  .nuc-heatcalc .nuc-hero-grid,
  .nuc-heatcalc .nuc-calculator-grid {
    grid-template-columns: 1fr;
  }

  .nuc-heatcalc .nuc-formula-card {
    max-width: 520px;
  }

  .nuc-heatcalc .nuc-result-panel {
    position: static;
  }

  .nuc-heatcalc .nuc-method-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 760px) {
  .nuc-heatcalc {
    font-size: 16px;
  }

  .nuc-heatcalc .nuc-hero {
    border-radius: 20px;
  }

  .nuc-heatcalc .nuc-hero-grid {
    gap: 30px;
    padding: 30px 20px;
  }

  .nuc-heatcalc .nuc-intro,
  .nuc-heatcalc .nuc-content-grid,
  .nuc-heatcalc .nuc-cta {
    grid-template-columns: 1fr;
  }

  .nuc-heatcalc .nuc-fields,
  .nuc-heatcalc .nuc-fields--3,
  .nuc-heatcalc .nuc-metrics {
    grid-template-columns: 1fr;
  }

  .nuc-heatcalc .nuc-field--wide {
    grid-column: auto;
  }

  .nuc-heatcalc .nuc-calculator-section {
    padding: 16px;
    border-radius: 20px;
  }

  .nuc-heatcalc .nuc-form-panel,
  .nuc-heatcalc .nuc-result-panel {
    border-radius: 16px;
  }

  .nuc-heatcalc .nuc-alert {
    grid-template-columns: 1fr;
  }

  .nuc-heatcalc .nuc-cta .nuc-btn {
    width: 100%;
  }
}