.tcp-b2si-configurator {
  --b2si-blue: #123f91;
  --b2si-blue-dark: #082c6c;
  --b2si-cyan: #13a9e8;
  --b2si-ink: #14213d;
  --b2si-muted: #64748b;
  --b2si-line: #dbe3ef;
  clear: both;
  margin: 24px 0;
  padding: 22px;
  color: var(--b2si-ink);
  border: 1px solid var(--b2si-line);
  border-radius: 16px;
  background: #fff;
  font-family: Poppins, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  box-shadow: 0 8px 26px rgba(15, 42, 85, .06);
}

.tcp-b2si-configurator * { box-sizing: border-box; }
.tcp-b2si-configurator__heading { margin-bottom: 18px; }
.tcp-b2si-configurator__heading h3 { margin: 3px 0 0; color: var(--b2si-ink); font-size: 24px; line-height: 1.2; }
.tcp-b2si-eyebrow { margin: 0; color: var(--b2si-blue); font-size: 11px; font-weight: 800; letter-spacing: .13em; }

.tcp-b2si-option-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
.tcp-b2si-field { min-width: 0; }
.tcp-b2si-field--size,
.tcp-b2si-field--button { grid-column: 1 / -1; }
.tcp-b2si-field.is-hidden,
.tcp-b2si-choice.is-hidden { display: none !important; }
.tcp-b2si-label { display: block; margin-bottom: 7px; color: #334155; font-size: 12px; font-weight: 700; }

.tcp-b2si-select {
  display: block;
  width: 100%;
  min-height: 46px;
  padding: 9px 38px 9px 12px;
  color: var(--b2si-ink);
  border: 1px solid #cbd5e1;
  border-radius: 9px;
  background-color: #fff;
  font: inherit;
}
.tcp-b2si-select:focus,
.tcp-b2si-measure input:focus { border-color: var(--b2si-cyan); box-shadow: 0 0 0 3px rgba(19, 169, 232, .13); outline: none; }

.tcp-b2si-size-row { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; }
.tcp-b2si-dimension { padding: 12px; border: 1px solid var(--b2si-line); border-radius: 11px; background: #f8fafc; }
.tcp-b2si-dimension > span { display: block; margin-bottom: 8px; color: #334155; font-size: 12px; font-weight: 700; }
.tcp-b2si-measure { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px; }
.tcp-b2si-measure label { position: relative; margin: 0; }
.tcp-b2si-measure input {
  width: 100%;
  min-height: 46px;
  padding: 9px 38px 9px 11px;
  color: var(--b2si-ink);
  border: 1px solid #cbd5e1;
  border-radius: 8px;
  background: #fff;
}
.tcp-b2si-measure small { position: absolute; top: 50%; right: 11px; transform: translateY(-50%); color: var(--b2si-muted); font-size: 11px; font-weight: 700; pointer-events: none; }
.tcp-b2si-size-error { margin: 7px 0 0; color: #b91c1c; font-size: 12px; font-weight: 600; }
.tcp-b2si-field.has-error .tcp-b2si-dimension { border-color: #fca5a5; background: #fff7f7; }

.tcp-b2si-choice-cards { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 9px; }
.tcp-b2si-choice { display: flex; align-items: flex-start; min-height: 62px; gap: 9px; margin: 0; padding: 11px; border: 1px solid #cbd5e1; border-radius: 10px; background: #fff; cursor: pointer; transition: .16s ease; }
.tcp-b2si-choice:hover { border-color: #93c5fd; }
.tcp-b2si-choice.is-selected { border-color: var(--b2si-blue); box-shadow: inset 0 0 0 1px var(--b2si-blue); background: #f2f7ff; }
.tcp-b2si-choice input { margin: 3px 0 0; accent-color: var(--b2si-blue); }
.tcp-b2si-choice-image { flex: 0 0 58px; width: 58px; height: 58px; object-fit: contain; border-radius: 7px; background: #fff; }
.tcp-b2si-choice span { display: block; line-height: 1.3; }
.tcp-b2si-choice strong { display: block; color: var(--b2si-ink); font-size: 13px; }
.tcp-b2si-choice small { display: block; margin-top: 3px; color: var(--b2si-muted); font-size: 11px; }
.tcp-b2si-selected-option-image {
  width: 110px;
  height: 86px;
  margin-top: 9px;
  overflow: hidden;
  border: 1px solid var(--b2si-line);
  border-radius: 9px;
  background: #fff;
}
.tcp-b2si-selected-option-image[hidden] { display: none; }
.tcp-b2si-selected-option-image img { display: block; width: 100%; height: 100%; object-fit: contain; }
.tcp-b2si-tip { margin-top: 6px; color: var(--b2si-muted); font-size: 11px; }
.tcp-b2si-tip p { margin: 0; }

.tcp-b2si-price-box {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 2px 20px;
  align-items: center;
  margin-top: 20px;
  padding: 15px 17px;
  color: #fff;
  border-radius: 11px;
  background: linear-gradient(120deg, var(--b2si-blue-dark), var(--b2si-blue));
}
.tcp-b2si-price-box > span { font-size: 12px; font-weight: 700; }
.tcp-b2si-live-price { grid-row: 1 / 3; grid-column: 2; color: #fff; font-size: 24px; line-height: 1; }
.tcp-b2si-price-box small { color: rgba(255, 255, 255, .72); font-size: 10px; }

@media (max-width: 720px) {
  .tcp-b2si-configurator { padding: 17px; }
  .tcp-b2si-option-grid,
  .tcp-b2si-size-row { grid-template-columns: 1fr; }
  .tcp-b2si-choice-cards { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 440px) {
  .tcp-b2si-choice-cards { grid-template-columns: 1fr; }
  .tcp-b2si-price-box { grid-template-columns: 1fr; }
  .tcp-b2si-live-price { grid-row: auto; grid-column: 1; margin: 6px 0; }
}