.biklin-kostka-landing,
.biklin-kostka-landing button,
.biklin-kostka-landing input,
.biklin-kostka-landing select,
.biklin-kostka-landing textarea {
  font-family: "Instrument Sans", "Segoe UI", sans-serif;
}

.biklin-kostka-landing .site-header {
  background: rgba(3, 16, 31, .96);
}

.kostka-lp {
  --kostka-navy: #03101f;
  --kostka-blue: #0a315d;
  --kostka-water: #38a9e8;
  --kostka-yellow: #ffc21a;
  --kostka-soft: #f2f7fb;
  background: #fff;
}

.kostka-hero {
  background:
    radial-gradient(circle at 16% 18%, rgba(56, 169, 232, .18), transparent 29rem),
    radial-gradient(circle at 86% 68%, rgba(255, 194, 26, .16), transparent 22rem),
    linear-gradient(135deg, #03101f 0%, #061c39 55%, #0a315d 100%);
}

.kostka-eyebrow {
  color: var(--kostka-yellow);
  display: block;
  font-size: .82rem;
  font-weight: 800;
  letter-spacing: 0;
  margin-bottom: 13px;
  text-transform: uppercase;
}

.kostka-hero .bl-proof {
  gap: 14px;
  max-width: 760px;
}

.kostka-hero .bl-proof li {
  background: rgba(255, 255, 255, .07);
  border: 1px solid rgba(255, 255, 255, .13);
  border-radius: 8px;
  min-height: 76px;
  padding: 16px;
}

.kostka-hero__media {
  background: rgba(255, 255, 255, .04);
  border: 1px solid rgba(255, 255, 255, .14);
  border-radius: 18px;
}

.kostka-hero__media::after {
  background: linear-gradient(180deg, transparent 45%, rgba(3, 16, 31, .82));
  content: "";
  inset: 0;
  pointer-events: none;
  position: absolute;
}

.kostka-hero__media img {
  object-position: 58% center;
}

.kostka-hero__media figcaption {
  bottom: 22px;
  color: #fff;
  left: 22px;
  position: absolute;
  right: 22px;
  z-index: 2;
}

.kostka-hero__media figcaption span {
  color: var(--kostka-yellow);
  display: block;
  font-size: .78rem;
  font-weight: 800;
  margin-bottom: 4px;
  text-transform: uppercase;
}

.kostka-hero__media figcaption strong {
  display: block;
  font-size: 1.2rem;
}

.kostka-surfaces {
  background: linear-gradient(180deg, #fff 0%, #f8fbfe 100%);
}

.kostka-surfaces ul {
  gap: 16px;
}

.kostka-surfaces li {
  align-items: flex-start;
  background: #fff;
  border: 1px solid rgba(16, 35, 63, .1);
  border-radius: 8px;
  box-shadow: 0 16px 42px rgba(16, 35, 63, .06);
  min-height: 184px;
  padding: 22px;
  text-align: left;
  transition: border-color .2s ease, box-shadow .2s ease, transform .2s ease;
}

.kostka-surfaces li:hover,
.kostka-price-cards article:hover,
.kostka-local__cards article:hover,
.kostka-benefits article:hover {
  border-color: rgba(255, 194, 26, .46);
  box-shadow: 0 24px 56px rgba(16, 35, 63, .1);
  transform: translateY(-2px);
}

.kostka-surfaces li span {
  color: var(--bl-muted);
  display: block;
  font-size: .9rem;
  line-height: 1.48;
}

.kostka-effect {
  background: #fff;
}

.kostka-effect__grid,
.kostka-pricing__grid,
.kostka-local__grid,
.kostka-case__grid,
.kostka-impregnation__grid {
  align-items: center;
  display: grid;
  gap: clamp(32px, 5vw, 70px);
}

.kostka-effect__grid p,
.kostka-local__grid p,
.kostka-case__grid p,
.kostka-impregnation__grid p {
  max-width: 70ch;
}

.kostka-checks {
  display: grid;
  gap: 10px;
  list-style: none;
  margin: 26px 0 0;
  padding: 0;
}

.kostka-checks li {
  align-items: center;
  color: var(--bl-text);
  display: flex;
  font-weight: 700;
  gap: 10px;
}

.kostka-checks li::before {
  background: var(--kostka-yellow);
  border-radius: 50%;
  content: "";
  flex: 0 0 auto;
  height: 9px;
  width: 9px;
}

.kostka-before-after,
.kostka-case figure,
.kostka-impregnation figure {
  border-radius: 12px;
  box-shadow: 0 30px 80px rgba(16, 35, 63, .16);
  margin: 0;
  min-height: 360px;
  overflow: hidden;
  position: relative;
}

.kostka-before-after {
  aspect-ratio: 16 / 10;
}

.kostka-before-after img,
.kostka-case img,
.kostka-impregnation img {
  display: block;
  height: 100%;
  object-fit: cover;
  width: 100%;
}

.kostka-before-after img {
  inset: 0;
  position: absolute;
}

.kostka-before-after__before,
.kostka-before-after__after {
  background: rgba(3, 16, 31, .86);
  border-radius: 999px;
  bottom: auto;
  color: #fff;
  font-size: .78rem;
  font-weight: 800;
  padding: 8px 12px;
  position: absolute;
  text-transform: uppercase;
  top: 16px;
}

.kostka-before-after__before {
  left: 16px;
}

.kostka-before-after__after {
  background: var(--kostka-yellow);
  color: var(--kostka-navy);
  right: 16px;
}

.kostka-process {
  background:
    radial-gradient(circle at 12% 16%, rgba(56, 169, 232, .09), transparent 22rem),
    var(--kostka-soft);
}

.kostka-process__steps {
  position: relative;
}

.kostka-process__steps::before {
  background: linear-gradient(90deg, rgba(255, 194, 26, .18), rgba(56, 169, 232, .35), rgba(255, 194, 26, .18));
  content: "";
  height: 3px;
  left: 9%;
  position: absolute;
  right: 9%;
  top: 34px;
}

.kostka-pricing {
  background: #fff;
}

.kostka-pricing__grid {
  align-items: stretch;
}

.kostka-price-cards {
  display: grid;
  gap: 14px;
  margin-top: 28px;
}

.kostka-price-cards article {
  background: linear-gradient(180deg, #fff, #f9fbfd);
  border: 1px solid rgba(16, 35, 63, .1);
  border-radius: 8px;
  box-shadow: 0 14px 36px rgba(16, 35, 63, .05);
  padding: 20px;
  transition: border-color .2s ease, box-shadow .2s ease, transform .2s ease;
}

.kostka-price-cards article.is-selected {
  border-color: rgba(255, 194, 26, .86);
  box-shadow: 0 24px 60px rgba(255, 194, 26, .18), 0 18px 42px rgba(16, 35, 63, .08);
}

.kostka-price-cards span {
  color: #956d00;
  display: block;
  font-size: .76rem;
  font-weight: 800;
  margin-bottom: 8px;
  text-transform: uppercase;
}

.kostka-price-cards strong {
  color: var(--bl-text);
  display: block;
  font-size: clamp(1.35rem, 2.5vw, 1.85rem);
  line-height: 1;
  margin-bottom: 8px;
}

.kostka-price-cards p {
  font-size: .9rem;
  line-height: 1.5;
  margin-bottom: 0;
}

.kostka-calculator {
  background:
    radial-gradient(circle at 100% 0%, rgba(255, 194, 26, .22), transparent 10rem),
    linear-gradient(180deg, #071f3f, #03101f);
  border: 1px solid rgba(255, 194, 26, .22);
  border-radius: 12px;
  box-shadow: 0 28px 80px rgba(3, 16, 31, .16);
  color: #fff;
  padding: clamp(24px, 4vw, 34px);
}

.kostka-calculator h3 {
  color: #fff;
  font-size: clamp(1.5rem, 3vw, 2.1rem);
  margin-bottom: 12px;
}

.kostka-calculator p {
  color: rgba(255, 255, 255, .76);
}

.kostka-calculator__eyebrow {
  color: var(--kostka-yellow);
  display: block;
  font-size: .76rem;
  font-weight: 800;
  margin-bottom: 10px;
  text-transform: uppercase;
}

.kostka-calculator__field {
  margin-top: 18px;
}

.kostka-calculator label,
.kostka-calculator legend {
  color: rgba(255, 255, 255, .9);
  display: block;
  font-size: .86rem;
  font-weight: 800;
  margin-bottom: 8px;
}

.kostka-calculator input,
.kostka-calculator select {
  background: rgba(255, 255, 255, .08);
  border: 1px solid rgba(255, 255, 255, .2);
  border-radius: 8px;
  color: #fff;
  min-height: 48px;
  padding: 0 14px;
  width: 100%;
}

.kostka-calculator select option {
  color: #10233f;
}

.kostka-calculator__service-select {
  display: none;
}

.kostka-calculator__service-summary {
  align-items: center;
  background: rgba(255, 255, 255, .08);
  border: 1px solid rgba(255, 255, 255, .18);
  border-radius: 8px;
  color: #fff;
  display: flex;
  font-weight: 800;
  justify-content: space-between;
  min-height: 48px;
  padding: 0 14px;
}

.kostka-calculator__service-summary span {
  color: var(--kostka-yellow);
  font-size: .84rem;
  white-space: nowrap;
}

.kostka-calculator__input {
  align-items: center;
  display: block;
  position: relative;
}

.kostka-calculator__input input {
  padding-right: 56px;
}

.kostka-calculator__input span {
  color: rgba(255, 255, 255, .7);
  font-weight: 800;
  pointer-events: none;
  position: absolute;
  right: 16px;
  top: 50%;
  transform: translateY(-50%);
  z-index: 2;
}

.kostka-calculator__extras {
  display: grid;
  gap: 10px;
  margin-top: 18px;
  padding: 0;
  border: 0;
}

.kostka-calculator__extras label {
  align-items: center;
  background: rgba(255, 255, 255, .07);
  border: 1px solid rgba(255, 255, 255, .11);
  border-radius: 8px;
  display: flex;
  gap: 10px;
  grid-template-columns: auto 1fr auto;
  margin: 0;
  min-height: 44px;
  padding: 10px 12px;
}

.kostka-calculator__extras label strong {
  color: var(--kostka-yellow);
  font-size: .82rem;
  white-space: nowrap;
}

.kostka-calculator__extras input {
  accent-color: var(--kostka-yellow);
  min-height: auto;
  padding: 0;
  width: auto;
}

.kostka-calculator__hint {
  color: rgba(255, 255, 255, .68);
  font-size: .86rem;
  line-height: 1.45;
  margin-top: 12px;
}

.kostka-calculator__result {
  background: linear-gradient(180deg, #fff, #f7fbff);
  border-radius: 10px;
  color: var(--bl-text);
  display: block;
  margin-top: 22px;
  padding: 20px;
  position: relative;
  transition: box-shadow .22s ease, transform .22s ease, background .22s ease;
}

.kostka-calculator__result span,
.kostka-calculator__result small {
  color: var(--bl-muted);
  display: block;
}

.kostka-calculator__result em {
  background: linear-gradient(180deg, var(--kostka-yellow), #ff9f1c);
  border-radius: 999px;
  box-shadow: 0 12px 26px rgba(255, 194, 26, .35);
  color: var(--kostka-navy);
  display: inline-flex;
  font-size: .78rem;
  font-style: normal;
  font-weight: 900;
  margin: 8px 0 4px;
  padding: 7px 11px;
  text-transform: uppercase;
}

.kostka-calculator__result em[hidden],
.kostka-calculator__result del[hidden] {
  display: none;
}

.kostka-calculator__result del {
  color: #8a98aa;
  display: block;
  font-size: 1.05rem;
  font-weight: 800;
  margin-top: 8px;
}

.kostka-calculator__result strong {
  display: block;
  font-size: clamp(2rem, 5vw, 3rem);
  line-height: 1;
  margin: 6px 0;
}

.kostka-calculator__result.has-discount {
  background:
    radial-gradient(circle at 94% 16%, rgba(255, 194, 26, .34), transparent 8rem),
    linear-gradient(180deg, #fffdf2, #fff);
  box-shadow: 0 22px 52px rgba(255, 194, 26, .22);
  transform: translateY(-1px);
}

.kostka-calculator__result.has-discount strong {
  color: #0b6b47;
}

.kostka-calculator__note {
  font-size: .88rem;
  margin-top: 16px;
}

.kostka-calculator .button--dark {
  background: linear-gradient(180deg, var(--kostka-yellow), #ffad0a);
  box-shadow: 0 16px 34px rgba(255, 194, 26, .28);
  color: var(--kostka-navy);
  margin-top: 18px;
}

.kostka-calculator .button--dark:hover,
.kostka-calculator .button--dark:focus-visible {
  background: linear-gradient(180deg, #ffd75a, var(--kostka-yellow));
}

.kostka-mid-cta {
  background: #fff;
  padding: 0 0 clamp(42px, 6vw, 74px);
}

.kostka-mid-cta__inner {
  align-items: center;
  background:
    radial-gradient(circle at 92% 22%, rgba(255, 194, 26, .28), transparent 12rem),
    linear-gradient(135deg, #071f3f, #03101f);
  border: 1px solid rgba(255, 194, 26, .18);
  border-radius: 12px;
  box-shadow: 0 28px 70px rgba(3, 16, 31, .18);
  color: #fff;
  display: grid;
  gap: 22px;
  padding-block: clamp(24px, 4vw, 34px);
}

.kostka-mid-cta span {
  color: var(--kostka-yellow);
  display: block;
  font-size: .78rem;
  font-weight: 900;
  margin-bottom: 6px;
  text-transform: uppercase;
}

.kostka-mid-cta strong {
  display: block;
  font-size: clamp(1.25rem, 2.5vw, 1.75rem);
  line-height: 1.18;
  max-width: 760px;
}

.kostka-mid-cta .button {
  justify-self: start;
}

.kostka-local-zone {
  background:
    radial-gradient(circle at 10% 12%, rgba(56, 169, 232, .09), transparent 26rem),
    linear-gradient(180deg, #f4f8fc 0%, #fff 48%, #f5f9fd 100%);
}

.kostka-local__cards {
  display: grid;
  gap: 14px;
}

.kostka-local__cards article,
.kostka-benefits article {
  background: rgba(255, 255, 255, .86);
  border: 1px solid rgba(16, 35, 63, .1);
  border-radius: 8px;
  box-shadow: 0 14px 36px rgba(16, 35, 63, .05);
  padding: 22px;
  transition: border-color .2s ease, box-shadow .2s ease, transform .2s ease;
}

.kostka-local__cards span {
  color: #956d00;
  display: block;
  font-size: .78rem;
  font-weight: 900;
  margin-bottom: 8px;
}

.kostka-local__cards h3,
.kostka-benefits h3 {
  color: var(--bl-text);
  font-size: 1.05rem;
  margin-bottom: 8px;
}

.kostka-local__cards p {
  font-size: .92rem;
  margin-bottom: 0;
}

.kostka-case {
  background: transparent;
}

.kostka-case__grid {
  align-items: stretch;
}

.kostka-case__grid > div {
  background:
    radial-gradient(circle at 100% 0%, rgba(255, 194, 26, .18), transparent 10rem),
    linear-gradient(180deg, #071f3f, #03101f);
  border-radius: 12px;
  color: #fff;
  padding: clamp(26px, 5vw, 48px);
}

.kostka-case__grid h2 {
  color: #fff;
}

.kostka-case__grid p {
  color: rgba(255, 255, 255, .78);
}

.kostka-case__grid .kostka-checks li {
  color: #fff;
}

.kostka-impregnation {
  background: transparent;
}

.kostka-benefits {
  display: grid;
  gap: 14px;
}

.kostka-benefits .biklin-icon {
  color: var(--kostka-yellow);
  height: 34px;
  margin-bottom: 14px;
  width: 34px;
}

.kostka-area {
  background:
    radial-gradient(circle at 12% 18%, rgba(56, 169, 232, .14), transparent 28rem),
    linear-gradient(135deg, #03101f 0%, #071f3f 58%, #0a315d 100%);
}

.kostka-faq {
  background:
    radial-gradient(circle at 88% 18%, rgba(255, 194, 26, .08), transparent 22rem),
    linear-gradient(180deg, #0a315d 0%, #03101f 100%);
}

.kostka-area + .kostka-faq {
  margin-top: 0;
}

.kostka-faq details p {
  color: var(--bl-muted);
}

.kostka-final {
  background:
    radial-gradient(circle at 82% 24%, rgba(56, 169, 232, .12), transparent 18rem),
    linear-gradient(135deg, #03101f 0%, #071f3f 62%, #0a315d 100%);
}

.pressure-lp .kostka-surfaces {
  padding-top: clamp(58px, 7vw, 92px);
}

.pressure-city-links {
  display: grid;
  gap: 10px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  list-style: none;
  margin: 22px 0 0;
  padding: 0;
}

.pressure-city-links li {
  margin: 0;
}

.pressure-city-links a {
  background: rgba(255, 255, 255, .08);
  border: 1px solid rgba(255, 255, 255, .14);
  border-radius: 8px;
  color: #fff;
  display: block;
  font-weight: 800;
  padding: 12px 14px;
  text-decoration: none;
  transition: background .2s ease, border-color .2s ease, transform .2s ease;
}

.pressure-city-links a:hover,
.pressure-city-links a:focus-visible {
  background: rgba(255, 194, 26, .16);
  border-color: rgba(255, 194, 26, .42);
  transform: translateY(-2px);
}

@media (min-width: 760px) {
  .kostka-price-cards {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

  .kostka-mid-cta__inner {
    grid-template-columns: minmax(0, 1fr) auto;
  }
}

@media (min-width: 980px) {
  .kostka-hero__grid,
  .kostka-effect__grid,
  .kostka-pricing__grid,
  .kostka-local__grid,
  .kostka-case__grid,
  .kostka-impregnation__grid {
    grid-template-columns: minmax(0, 1fr) minmax(360px, .88fr);
  }

  .kostka-case__grid {
    grid-template-columns: minmax(360px, .82fr) minmax(0, 1fr);
  }

  .kostka-impregnation__grid {
    grid-template-columns: minmax(0, 1fr) minmax(360px, .75fr);
  }
}

@media (max-width: 979px) {
  .kostka-process__steps::before {
    display: none;
  }
}

@media (max-width: 640px) {
  .kostka-hero .bl-proof {
    grid-template-columns: 1fr;
    padding-top: 28px;
  }

  .kostka-hero__media,
  .kostka-before-after,
  .kostka-case figure,
  .kostka-impregnation figure {
    min-height: 280px;
  }

  .kostka-price-cards article,
  .kostka-local__cards article,
  .kostka-benefits article {
    padding: 18px;
  }
}