.fbkc-section,
.fbkc-section * {
  box-sizing: border-box;
}

.fbkc-section {
  background:
    radial-gradient(circle at 12% 10%, rgba(0,152,255,.07), transparent 34%),
    #f8fbfd;
  padding: 100px 24px;
  color: #122033;
  overflow: hidden;
}

.fbkc-shell {
  max-width: 1280px;
  margin: 0 auto;
}

.fbkc-header {
  max-width: 820px;
  margin-bottom: 46px;
}

.fbkc-eyebrow,
.fbkc-step-label,
.fbkc-summary-label {
  color: #0098ff;
  font-size: 13px;
  font-weight: 800;
  letter-spacing: .11em;
  text-transform: uppercase;
}

.fbkc-header h2 {
  margin: 14px 0 18px;
  color: #122033;
  font-size: clamp(2.5rem, 5vw, 4.4rem);
  line-height: 1.05;
  font-weight: 800;
}

.fbkc-header p {
  margin: 0;
  max-width: 760px;
  color: #526174;
  font-size: 1.18rem;
  line-height: 1.7;
}

.fbkc-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(360px, .72fr);
  gap: 34px;
  align-items: start;
}

.fbkc-card {
  background: #ffffff;
  border: 1px solid rgba(18,32,51,.10);
  border-radius: 20px;
  box-shadow: 0 24px 70px rgba(18,32,51,.09);
}

.fbkc-inputs {
  padding: 34px;
}

.fbkc-step + .fbkc-step {
  border-top: 1px solid rgba(18,32,51,.10);
  margin-top: 34px;
  padding-top: 34px;
}

.fbkc-step h3 {
  margin: 8px 0 10px;
  color: #122033;
  font-size: 1.55rem;
  line-height: 1.2;
  font-weight: 800;
}

.fbkc-step p {
  margin: 0 0 20px;
  color: #526174;
  font-size: 1rem;
  line-height: 1.65;
}

.fbkc-option-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
}

.fbkc-option-grid label,
.fbkc-delivery-grid label {
  cursor: pointer;
}

.fbkc-option-grid input,
.fbkc-delivery-grid input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.fbkc-option-grid span {
  display: flex;
  min-height: 52px;
  align-items: center;
  justify-content: center;
  padding: 12px;
  border: 1px solid rgba(18,32,51,.12);
  border-radius: 12px;
  background: #ffffff;
  color: #122033;
  font-weight: 800;
  transition: .2s ease;
}

.fbkc-delivery-grid {
  display: grid;
  gap: 12px;
}

.fbkc-delivery-grid span {
  display: block;
  padding: 18px 20px;
  border: 1px solid rgba(18,32,51,.12);
  border-radius: 14px;
  background: #ffffff;
  color: #526174;
  line-height: 1.55;
  transition: .2s ease;
}

.fbkc-delivery-grid strong {
  display: block;
  color: #122033;
  font-size: 1.05rem;
  margin-bottom: 4px;
}

.fbkc-option-grid input:checked + span,
.fbkc-delivery-grid input:checked + span {
  background: #eef6ff;
  border-color: #0098ff;
  box-shadow: 0 0 0 3px rgba(0,152,255,.10);
}

.fbkc-fields {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.fbkc-fields input,
.fbkc-fields select {
  width: 100%;
  min-height: 54px;
  border: 1px solid rgba(18,32,51,.14);
  border-radius: 10px;
  padding: 0 15px;
  color: #122033;
  background: #ffffff;
  font-size: 1rem;
  outline: none;
}

.fbkc-fields input:focus,
.fbkc-fields select:focus {
  border-color: #0098ff;
  box-shadow: 0 0 0 3px rgba(0,152,255,.10);
}

.fbkc-summary {
  position: sticky;
  top: 28px;
}

.fbkc-summary-card {
  padding: 30px;
}

.fbkc-price {
  margin: 14px 0 22px;
  color: #122033;
  font-size: 3rem;
  line-height: 1.05;
  font-weight: 800;
}

.fbkc-price span {
  color: #526174;
  font-size: 1rem;
  font-weight: 700;
}

.fbkc-selected {
  display: grid;
  gap: 10px;
  padding: 18px;
  border-radius: 14px;
  background: #f5f9fd;
  margin-bottom: 22px;
}

.fbkc-selected div {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  color: #526174;
  font-size: .95rem;
}

.fbkc-selected strong {
  color: #122033;
  text-align: right;
}

.fbkc-list {
  margin-top: 22px;
}

.fbkc-list h4,
.fbkc-next h4 {
  margin: 0 0 10px;
  color: #122033;
  font-size: 1rem;
  font-weight: 800;
}

.fbkc-list ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 8px;
}

.fbkc-list li {
  position: relative;
  padding-left: 24px;
  color: #435267;
  line-height: 1.45;
}

.fbkc-list li:before {
  content: "✓";
  position: absolute;
  left: 0;
  color: #0f8b8d;
  font-weight: 900;
}

.fbkc-muted li:before {
  content: "–";
  color: #8a98a8;
}

.fbkc-submit {
  width: 100%;
  min-height: 54px;
  margin-top: 26px;
  border: 0;
  border-radius: 8px;
  background: #0098ff;
  color: #ffffff;
  font-weight: 800;
  font-size: .98rem;
  cursor: pointer;
  transition: .2s ease;
}

.fbkc-submit:hover {
  background: #0079d4;
}

.fbkc-submit:disabled {
  cursor: not-allowed;
  opacity: .6;
}

.fbkc-message {
  display: none;
  margin-top: 16px;
  padding: 14px;
  border-radius: 10px;
  font-weight: 700;
  line-height: 1.5;
}

.fbkc-message.is-success {
  display: block;
  background: #eefaf7;
  color: #0f6f61;
}

.fbkc-message.is-error {
  display: block;
  background: #fff1f1;
  color: #a53535;
}

.fbkc-next {
  margin-top: 24px;
  padding-top: 22px;
  border-top: 1px solid rgba(18,32,51,.10);
}

.fbkc-next p {
  margin: 0;
  color: #526174;
  font-size: .95rem;
  line-height: 1.65;
}

@media (max-width: 1040px) {
  .fbkc-grid {
    grid-template-columns: 1fr;
  }

  .fbkc-summary {
    position: static;
  }
}

@media (max-width: 767px) {
  .fbkc-section {
    padding: 76px 18px;
  }

  .fbkc-inputs,
  .fbkc-summary-card {
    padding: 22px;
    border-radius: 18px;
  }

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

  .fbkc-fields {
    grid-template-columns: 1fr;
  }

  .fbkc-price {
    font-size: 2.25rem;
  }
}