/* KALKULATOR — strona /cennik-ocieplen/ */

/* ── Hero ───────────────────────────────────────── */
.kalkulator-page__hero {
  position: relative;
  background: linear-gradient(135deg, var(--color-primary-dark), var(--color-primary));
  color: #fff;
  padding: clamp(20px, 3vw, 36px) 0 clamp(28px, 4vw, 48px);
  overflow: hidden;
}
.kalkulator-page__hero::after {
  content: '';
  position: absolute;
  left: 0; right: 0; bottom: 0;
  height: 6px;
  background: linear-gradient(90deg, var(--color-accent) 0%, var(--color-accent) 60%, transparent 100%);
}
.kalkulator-page__hero-overlay {
  position: absolute;
  inset: 0;
  background-image: radial-gradient(rgba(255, 255, 255, 0.06) 1px, transparent 1px);
  background-size: 28px 28px;
}
.kalkulator-page__hero-inner { position: relative; z-index: 2; }

.kalkulator-page__kicker {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  font-family: var(--font-heading);
  font-size: var(--text-sm);
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: var(--space-sm);
}
.kalkulator-page__kicker-dash {
  width: 24px;
  height: 2px;
  background: var(--color-accent);
}

.kalkulator-page__title {
  color: #fff;
  font-size: clamp(30px, 4vw, 48px);
  margin: 0 0 var(--space-sm);
  line-height: 1.05;
}
.kalkulator-page__title::after {
  content: '';
  display: block;
  width: 60px;
  height: 4px;
  background: var(--color-accent);
  margin-top: var(--space-sm);
}

.kalkulator-page__lead {
  font-size: var(--text-lg);
  color: rgba(255, 255, 255, 0.92);
  max-width: 680px;
}

/* Breadcrumbs */
.kalkulator-page__hero .breadcrumbs {
  background: transparent;
  padding: 0;
  margin-bottom: 6px;
  font-size: 12px;
}
.kalkulator-page__hero .breadcrumbs .container { padding: 0; max-width: none; }
.kalkulator-page__hero .breadcrumbs__list { margin: 0; padding: 0; }
.kalkulator-page__hero .breadcrumbs__item { color: rgba(255, 255, 255, 0.55); }
.kalkulator-page__hero .breadcrumbs__item:not(:last-child)::after { color: rgba(255, 255, 255, 0.35); }
.kalkulator-page__hero .breadcrumbs__link { color: rgba(255, 255, 255, 0.8); transition: color var(--transition-fast); }
.kalkulator-page__hero .breadcrumbs__link:hover { color: var(--color-accent); }
.kalkulator-page__hero .breadcrumbs__item--current { color: var(--color-accent); font-weight: 600; }

/* ── Tabs ───────────────────────────────────────── */
.kalkulator-page__tabs {
  background: #fff;
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: 10;
}
.kalkulator-page__tabs-list {
  display: flex;
  gap: var(--space-md);
  list-style: none;
  margin: 0;
  padding: 0;
  overflow-x: auto;
}
.kalkulator-page__tab {
  background: none;
  border: 0;
  padding: var(--space-md) 4px;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: var(--text-sm);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  cursor: pointer;
  border-bottom: 3px solid transparent;
  transition: color var(--transition-fast), border-color var(--transition-fast);
  white-space: nowrap;
}
.kalkulator-page__tab:hover { color: var(--color-primary); }
.kalkulator-page__tab.is-active {
  color: var(--color-primary);
  border-bottom-color: var(--color-accent);
}

/* ── Card / sekcja kalkulatora ──────────────────── */
.kalkulator-card {
  display: none;
  padding: var(--space-xl) 0;
}
.kalkulator-card.is-active { display: block; }

.kalkulator-card__head {
  text-align: center;
  margin-bottom: var(--space-lg);
}
.kalkulator-card__title {
  font-size: clamp(28px, 3vw, 36px);
  color: var(--color-primary);
  margin: 0 0 var(--space-xs);
}
.kalkulator-card__subtitle {
  color: var(--color-text-muted);
  margin: 0 0 var(--space-xs);
}
.kalkulator-card__intro {
  color: var(--color-text-muted);
  font-size: var(--text-sm);
  margin: 0;
}

/* ── Tabela (div grid) ──────────────────────────── */
.kalkulator-table {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: 0 1px 2px rgba(0,0,0,0.04);
}

.kalkulator-table__head,
.kalkulator-row {
  display: grid;
  grid-template-columns: 1.4fr 1.8fr 0.9fr 0.9fr 1fr;
  align-items: center;
  gap: var(--space-md);
  padding: 12px var(--space-md);
}
.kalkulator-table__head {
  background: var(--color-primary);
  color: #fff;
  font-family: var(--font-heading);
  font-size: var(--text-xs);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.kalkulator-table__head-price,
.kalkulator-table__head-cons,
.kalkulator-table__head-toggle { text-align: center; }

.kalkulator-row {
  border-bottom: 1px solid var(--color-border);
  transition: background var(--transition-fast);
}
.kalkulator-row:last-child { border-bottom: 0; }
.kalkulator-row:nth-child(even) { background: rgba(0,0,0,0.015); }
.kalkulator-row[data-include="0"] { opacity: 0.45; }

.kalkulator-row__cell { min-width: 0; }
.kalkulator-row__cell--name {
  display: flex;
  align-items: center;
  gap: 6px;
  font-weight: 600;
  color: var(--color-primary);
}
.kalkulator-row__cell--price,
.kalkulator-row__cell--cons { text-align: center; }
.kalkulator-row__cell--toggle {
  display: flex;
  justify-content: center;
  gap: var(--space-md);
}

.kalkulator-row__name { font-size: var(--text-sm); }
.kalkulator-row__price {
  font-family: var(--font-heading);
  font-weight: 700;
  color: var(--color-primary);
  font-size: var(--text-base);
}
.kalkulator-row__price-unit {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  margin-left: 2px;
}

.kalkulator-row__select {
  width: 100%;
  padding: 8px 10px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-family: var(--font-body);
  font-size: var(--text-sm);
  background: #fff;
}
.kalkulator-row__select:focus {
  outline: 0;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(30, 91, 168, 0.12);
}

.kalkulator-row__radio {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: var(--text-sm);
  color: var(--color-text);
  cursor: pointer;
}
.kalkulator-row__radio input { margin: 0; cursor: pointer; }

/* Info / tooltip */
.kalkulator-row__info {
  position: relative;
  width: 18px;
  height: 18px;
  background: var(--color-bg);
  color: var(--color-text-muted);
  border: 1px solid var(--color-border);
  border-radius: 50%;
  cursor: help;
  padding: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}
.kalkulator-row__info:hover .kalkulator-row__tooltip { opacity: 1; visibility: visible; transform: translateY(-4px); }
.kalkulator-row__tooltip {
  position: absolute;
  bottom: 100%;
  left: 50%;
  transform: translate(-50%, 0);
  background: var(--color-text);
  color: #fff;
  padding: 8px 10px;
  border-radius: var(--radius-sm);
  font-size: var(--text-xs);
  line-height: 1.4;
  white-space: normal;
  width: 240px;
  text-align: left;
  font-weight: 400;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-fast), transform var(--transition-fast);
  z-index: 5;
  margin-bottom: 8px;
  pointer-events: none;
}
.kalkulator-row__tooltip::after {
  content: '';
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%);
  border: 5px solid transparent;
  border-top-color: var(--color-text);
}

/* ── Podsumowanie ─────────────────────────────── */
.kalkulator-summary {
  margin-top: var(--space-lg);
  padding: var(--space-lg);
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  border-left: 4px solid var(--color-accent);
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: var(--space-lg);
  align-items: center;
}
.kalkulator-summary__total,
.kalkulator-summary__area,
.kalkulator-summary__investment { min-width: 0; }
.kalkulator-summary__label {
  display: block;
  font-family: var(--font-heading);
  font-size: var(--text-xs);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  margin-bottom: 4px;
}
.kalkulator-summary__value {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: var(--text-xl);
  color: var(--color-primary);
}
.kalkulator-summary__value--big { font-size: clamp(28px, 3vw, 38px); }
.kalkulator-summary__unit {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  font-weight: 400;
  margin-left: 4px;
}
.kalkulator-summary__input {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-family: var(--font-body);
  font-size: var(--text-base);
}
.kalkulator-summary__input:focus {
  outline: 0;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(30, 91, 168, 0.12);
}

/* ── Akcje pod kartą ──────────────────────────── */
.kalkulator-card__actions {
  display: flex;
  justify-content: center;
  gap: var(--space-md);
  margin-top: var(--space-lg);
  flex-wrap: wrap;
}

/* Empty state */
.kalkulator-page__empty {
  text-align: center;
  padding: var(--space-2xl) 0;
  color: var(--color-text-muted);
}

/* sr-only helper */
.kalkulator-row .sr-only,
.sr-only {
  position: absolute !important;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  border: 0;
}

/* ── Responsive ───────────────────────────────── */
@media (max-width: 900px) {
  .kalkulator-summary { grid-template-columns: 1fr; }
}
@media (max-width: 768px) {
  .kalkulator-table__head { display: none; }
  .kalkulator-row {
    display: grid;
    grid-template-columns: auto auto 1fr;
    grid-template-areas:
      "name    name    name"
      "product product product"
      "price   cons    toggle";
    gap: 8px 12px;
    padding: 12px;
    align-items: center;
  }
  .kalkulator-row__cell--name    { grid-area: name; }
  .kalkulator-row__cell--product { grid-area: product; }
  .kalkulator-row__cell--price   {
    grid-area: price;
    text-align: left;
    display: inline-flex;
    align-items: baseline;
    gap: 4px;
    white-space: nowrap;
    font-size: 13px;
  }
  .kalkulator-row__cell--cons    {
    grid-area: cons;
    text-align: left;
    display: inline-flex;
    align-items: baseline;
    gap: 4px;
    white-space: nowrap;
    font-size: 13px;
  }
  .kalkulator-row__cell--toggle  {
    grid-area: toggle;
    display: inline-flex;
    justify-content: flex-end;
    gap: 8px;
  }
  .kalkulator-row__cell--price::before { content: 'Cena: '; color: var(--color-text-muted); font-weight: 400; font-size: 11px; }
  .kalkulator-row__cell--cons::before  { content: 'Zużycie: '; color: var(--color-text-muted); font-size: 11px; }
  .kalkulator-row__radio { font-size: 12px; gap: 3px; }
}

@media (max-width: 480px) {
  .kalkulator-row { padding: 10px; }
  .kalkulator-row__cell--price,
  .kalkulator-row__cell--cons  { font-size: 12px; }
  .kalkulator-row__cell--price::before,
  .kalkulator-row__cell--cons::before { display: none; } /* za mało miejsca — usuń labelki */
}