:root {
  --calc-accent: #ffb703;
  --calc-bg-card: #14161f;
  --calc-bg-inner: #0b0c12;
  --calc-border: rgba(255, 255, 255, 0.08);
  --calc-text-dim: #9ca3af;
}

.calc-header {
  background: #05060a;
  padding-block: 1.2rem;
  border-bottom: 1px solid var(--calc-border);
}

.calc-header__inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.calc-header__back {
  color: var(--calc-text-dim);
  font-size: 0.9rem;
  font-weight: 500;
  transition: 0.3s;
}

.calc-header__back:hover {
  color: var(--calc-accent);
}

.calc-header__logo img {
  height: 40px;
}

.calc-layout {
  display: grid;
  grid-template-columns: 1.7fr 1fr;
  gap: 3rem;
  margin-top: 2.5rem;
  align-items: start;
}

.calc-group {
  background: var(--calc-bg-card);
  padding: 2rem;
  border-radius: 28px;
  margin-bottom: 1.5rem;
  border: 1px solid var(--calc-border);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.conditional-group {
  border-left: 4px solid var(--calc-accent);
  animation: slideDown 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275) forwards;
}

@keyframes slideDown {
  from {
    opacity: 0;
    transform: translateY(-15px) scale(0.98);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

.calc-group__title {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 1.5rem;
  color: #fff;
}

.room-row {
  background: var(--calc-bg-inner);
  border: 1px solid var(--calc-border);
  border-radius: 18px;
  padding: 1.2rem;
  margin-bottom: 1rem;
  animation: slideDown 0.3s ease forwards;
}

.room-row__header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1rem;
}

.room-row__label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--calc-accent);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.btn-remove-room {
  background: rgba(239, 68, 68, 0.1);
  border: none;
  color: #ef4444;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: 0.2s;
}

.btn-remove-room:hover {
  background: #ef4444;
  color: #fff;
}

.room-row__grid {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  flex-wrap: wrap;
}

.dim-input {
  position: relative;
  flex: 1;
  min-width: 100px;
}

.dim-input input {
  width: 100%;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--calc-border);
  padding: 0.8rem 1rem;
  padding-right: 2.2rem;
  border-radius: 12px;
  color: #fff;
  outline: none;
  font-weight: 500;
  transition: 0.3s;
}

.dim-input input:focus {
  border-color: var(--calc-accent);
  background: rgba(255, 183, 3, 0.05);
}

.dim-unit {
  position: absolute;
  right: 0.9rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--calc-text-dim);
  font-size: 0.8rem;
  pointer-events: none;
}

.dim-separator {
  color: var(--calc-text-dim);
  font-size: 0.8rem;
}

.dim-result {
  min-width: 80px;
  text-align: right;
  font-size: 1.1rem;
  color: var(--calc-accent);
}

.dim-res {
  font-weight: 700;
  font-size: 1.25rem;
}

/* Accordion for hints */
.calc-hint-accordion {
  margin-top: 1.5rem;
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--calc-border);
  border-radius: 12px;
  overflow: hidden;
  cursor: pointer;
  transition: 0.3s;
}

.calc-hint-accordion:hover {
  background: rgba(255, 255, 255, 0.04);
}

.calc-hint-accordion__header {
  padding: 1rem 1.2rem;
  display: flex;
  align-items: center;
  gap: 0.8rem;
  font-size: 0.85rem;
  color: var(--calc-text-dim);
  font-weight: 500;
}

.calc-hint-accordion__header i.fa-circle-info {
  color: var(--calc-accent);
}

.calc-hint-accordion__header .chevron {
  margin-left: auto;
  font-size: 0.75rem;
  transition: transform 0.3s ease;
}

.calc-hint-accordion__content {
  padding: 0 1.2rem;
  max-height: 0;
  opacity: 0;
  overflow: hidden;
  transition: all 0.3s ease;
  font-size: 0.8rem;
  line-height: 1.5;
  color: #888;
}

.calc-hint-accordion.is-open .calc-hint-accordion__content {
  padding: 0 1.2rem 1.2rem 1.2rem;
  max-height: 200px;
  opacity: 1;
}

.calc-hint-accordion.is-open .chevron {
  transform: rotate(180deg);
}

.calc-options {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
  gap: 1.2rem;
}

.calc-option input {
  display: none;
}

.calc-option__box {
  background: var(--calc-bg-inner);
  border: 2px solid transparent;
  border-radius: 20px;
  padding: 1.4rem;
  text-align: center;
  cursor: pointer;
  transition: all 0.3s ease;
  height: 100%;
}

.calc-option__box i {
  font-size: 1.8rem;
  color: var(--calc-text-dim);
  margin-bottom: 0.8rem;
  transition: 0.3s ease;
}

.calc-option input:checked + .calc-option__box {
  border-color: var(--calc-accent);
  background: rgba(255, 183, 3, 0.05);
  box-shadow: 0 0 20px rgba(255, 183, 3, 0.1);
  transform: translateY(-2px);
}

.calc-option input:checked + .calc-option__box i {
  color: var(--calc-accent);
  transform: scale(1.1);
}

.calc-option__label {
  display: block;
  font-weight: 700;
  font-size: 0.95rem;
  color: #fff;
}

.calc-option__desc {
  font-size: 0.8rem;
  color: var(--calc-text-dim);
  margin-top: 0.4rem;
}

.opt-red input:checked + .calc-option__box {
  border-color: #ef4444;
}
.opt-red input:checked + .calc-option__box i {
  color: #ef4444;
}

.opt-yellow input:checked + .calc-option__box {
  border-color: var(--calc-accent);
}
.opt-yellow input:checked + .calc-option__box i {
  color: var(--calc-accent);
}

.opt-blue input:checked + .calc-option__box {
  border-color: #3b82f6;
}
.opt-blue input:checked + .calc-option__box i {
  color: #3b82f6;
}

.calc-sidebar {
  position: sticky;
  top: 2rem;
}

.calc-summary {
  padding: 2rem;
  background: linear-gradient(160deg, #1a1d29, #11131a);
  border: 2px solid var(--calc-accent);
  border-radius: 28px;
}

.calc-summary__price-row {
  display: flex;
  align-items: baseline;
  justify-content: flex-start;
  gap: 1.2rem;
  flex-wrap: wrap;
  margin-bottom: 1.2rem;
}

.calc-summary__price-box {
  display: flex;
  align-items: baseline;
  gap: 0.4rem;
}

#total_price {
  font-size: 3.6rem;
  font-weight: 900;
  color: var(--calc-accent);
  letter-spacing: -1.5px;
  line-height: 1;
  font-variant-numeric: tabular-nums;
  display: inline-block;
}

.currency {
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--calc-accent);
}

.badge {
  background: rgba(255, 255, 255, 0.05);
  padding: 0.4rem 0.8rem;
  border-radius: 999px;
  font-size: 0.75rem;
  color: var(--calc-text-dim);
  white-space: nowrap;
}

.price-glow {
  animation: priceGlowAnim 0.6s ease-out;
}

@keyframes priceGlowAnim {
  0% {
    text-shadow:
      0 0 20px rgba(255, 183, 3, 0.8),
      0 0 40px rgba(255, 183, 3, 0.5);
    transform: scale(1.05);
    color: #fff;
  }
  100% {
    text-shadow: none;
    transform: scale(1);
    color: var(--calc-accent);
  }
}

.price-breakdown-static {
  padding: 1.2rem;
  background: rgba(0, 0, 0, 0.3);
  border-radius: 18px;
  text-align: left;
}

.breakdown-title {
  font-size: 0.8rem;
  text-transform: uppercase;
  color: var(--calc-text-dim);
  margin-bottom: 0.8rem;
  font-weight: 700;
}

.breakdown-row {
  display: flex;
  justify-content: space-between;
  font-size: 0.9rem;
  padding-block: 0.5rem;
  border-bottom: 1px dashed rgba(255, 255, 255, 0.1);
}

.breakdown-row:last-child {
  border-bottom: none;
  font-weight: 700;
  color: var(--calc-accent);
}

.cta-lejek {
  margin-top: 1.8rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.lead-section {
  display: none;
  margin-top: 5rem;
}

.lead-container {
  padding: 3.5rem;
  border: 1px solid var(--calc-border);
  border-radius: 28px;
}

.lead-form-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2rem;
}

.lead-field--full {
  grid-column: 1 / -1;
}

.lead-field label {
  font-size: 0.9rem;
  color: var(--calc-text-dim);
  margin-bottom: 0.5rem;
  display: block;
}

.lead-field input,
.lead-field textarea {
  width: 100%;
  background: var(--calc-bg-inner);
  border: 1px solid var(--calc-border);
  padding: 1.2rem;
  border-radius: 15px;
  color: #fff;
  outline: none;
  transition: 0.3s;
  font-family: inherit;
}

.lead-field input:focus,
.lead-field textarea:focus {
  border-color: var(--calc-accent);
  box-shadow: 0 0 15px rgba(255, 183, 3, 0.1);
}

.btn--shimmer {
  position: relative;
  overflow: hidden;
  box-shadow: 0 15px 40px rgba(255, 183, 3, 0.3);
}

.btn--shimmer::after {
  content: "";
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: linear-gradient(
    45deg,
    transparent,
    rgba(255, 255, 255, 0.4),
    transparent
  );
  transform: rotate(45deg);
  animation: shimmer 3.5s infinite;
}

@keyframes shimmer {
  0% {
    transform: translateX(-150%) rotate(45deg);
  }
  100% {
    transform: translateX(150%) rotate(45deg);
  }
}

/* WERSJA MOBILNA - OPTYMALIZACJA PADDINGÓW I UKŁADU */
@media (max-width: 900px) {
  .container {
    padding-inline: 1rem;
  }
  .calc-layout {
    grid-template-columns: 1fr;
    gap: 1.5rem;
    margin-top: 1.5rem;
  }

  .calc-group {
    padding: 1.2rem;
    border-radius: 20px;
  }
  .calc-group__title {
    font-size: 1rem;
    margin-bottom: 1rem;
    margin-top: 0;
  }

  /* Układ dla grup 2 i 3 (3 opcje w rzędzie) */
  .calc-options--3-cols {
    grid-template-columns: repeat(3, 1fr) !important;
    gap: 0.4rem;
  }
  .calc-options--3-cols .calc-option__box {
    padding: 0.8rem 0.2rem;
  }
  .calc-options--3-cols .calc-option__box i {
    font-size: 1.3rem;
    margin-bottom: 0.4rem;
  }
  .calc-options--3-cols .calc-option__label {
    font-size: 0.75rem;
  }
  .calc-options--3-cols .calc-option__desc {
    font-size: 0.65rem;
  }

  /* Układ dla grup 4, 5, 6 (2 opcje w rzędzie z zawijaniem) */
  .calc-options--2-cols {
    grid-template-columns: repeat(2, 1fr) !important;
    gap: 0.6rem;
  }
  .calc-options--2-cols .calc-option__box {
    padding: 1rem 0.5rem;
  }

  /* Reszta styli mobilnych */
  .calc-options {
    grid-template-columns: repeat(auto-fit, minmax(110px, 1fr));
  }
  .calc-option__box {
    padding: 1rem;
    border-radius: 15px;
  }
  .calc-option__box i {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
  }
  .calc-option__label {
    font-size: 0.85rem;
  }
  .calc-option__desc {
    font-size: 0.75rem;
  }

  .room-row {
    padding: 1rem;
    border-radius: 15px;
  }
  .room-row__grid {
    flex-direction: column;
    align-items: stretch;
    gap: 0.5rem;
  }
  .dim-separator {
    display: none;
  }
  .dim-result {
    text-align: left;
    padding-top: 0.5rem;
    border-top: 1px dashed rgba(255, 255, 255, 0.1);
    margin-top: 0.5rem;
  }

  .calc-hint-accordion__header {
    padding: 0.4rem 0.5rem;
    font-size: 0.8rem;
  }

  .calc-sidebar {
    top: 0;
    z-index: 10;
    margin-top: 0.5rem;
  }
  .calc-summary {
    padding: 1.5rem;
    border-radius: 20px;
    margin-bottom: 150px;
  }
  #total_price {
    font-size: 2.8rem;
  }
  .calc-summary__price-row {
    gap: 0.8rem;
    margin-bottom: 1rem;
  }
  .currency {
    font-size: 1.2rem;
  }

  .lead-container {
    padding: 1.5rem 1rem;
    border-radius: 20px;
  }
  .lead-header h2 {
    font-size: 1.5rem;
  }
  .lead-form-grid {
    grid-template-columns: 1fr;
    gap: 1.2rem;
  }
  .lead-field input,
  .lead-field textarea {
    padding: 1rem;
    border-radius: 12px;
  }
}