/* Calculator page */
.cb-calc {
  display: grid; grid-template-columns: 1.4fr 1fr; gap: 32px;
  max-width: var(--container); margin: 0 auto;
  align-items: start;
}
.cb-calc__form {
  background: var(--cb-paper);
  border: 1px solid var(--cb-warm-line);
  border-radius: 16px;
  padding: 40px;
  display: flex; flex-direction: column; gap: 32px;
}
.cb-calc__group { display: flex; flex-direction: column; gap: 16px; }
.cb-calc__label {
  font-family: var(--font-body); font-weight: 700; font-size: 14px;
  letter-spacing: .04em; text-transform: uppercase; color: var(--fg-3);
}
.cb-calc__sizes { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; }
.cb-calc__size {
  background: white;
  border: 2px solid var(--cb-warm-line);
  border-radius: 8px;
  padding: 20px 16px;
  cursor: pointer;
  display: flex; flex-direction: column; gap: 4px;
  text-align: left;
  font-family: var(--font-body);
  transition: border-color .15s, transform .15s;
}
.cb-calc__size:hover { transform: translateY(-2px); }
.cb-calc__size.is-active { border-color: var(--cb-magenta); background: rgba(251,77,10,.04); }
.cb-calc__size strong { font-size: 14px; color: var(--fg-1); }
.cb-calc__size small { color: var(--fg-3); font-size: 12px; }
.cb-calc__size__price {
  font-family: var(--font-display); font-size: 32px; color: var(--cb-magenta);
  margin-top: 8px; line-height: 1;
}
.cb-calc__size.is-active .cb-calc__size__price { color: var(--cb-magenta); }

.cb-calc__extras { display: flex; flex-direction: column; gap: 8px; }
.cb-calc__check {
  display: grid; grid-template-columns: auto 1fr auto; gap: 14px;
  align-items: center;
  padding: 14px 16px;
  background: white;
  border: 1px solid var(--cb-warm-line);
  border-radius: 6px;
  cursor: pointer;
  transition: all .15s;
}
.cb-calc__check:hover { border-color: var(--cb-onyx); }
.cb-calc__check.is-on { background: rgba(216,255,61,.12); border-color: var(--cb-onyx); }
.cb-calc__check input { display: none; }
.cb-calc__check__box {
  width: 22px; height: 22px; border-radius: 4px;
  border: 2px solid var(--cb-warm-line);
  display: flex; align-items: center; justify-content: center;
  font-weight: 700; font-size: 14px; color: white;
  background: white;
}
.cb-calc__check.is-on .cb-calc__check__box { background: var(--cb-onyx); border-color: var(--cb-onyx); }
.cb-calc__check__label { font-weight: 600; font-size: 15px; }
.cb-calc__check__price { color: var(--fg-3); font-size: 13px; font-weight: 600; }
.cb-calc__check.is-on .cb-calc__check__price { color: var(--cb-magenta); }

.cb-calc__stepper {
  display: grid; grid-template-columns: 1fr auto auto; gap: 14px;
  align-items: center;
  padding: 14px 16px;
  background: white;
  border: 1px solid var(--cb-warm-line);
  border-radius: 6px;
}
.cb-calc__stepper__ctrl { display: inline-flex; align-items: center; gap: 12px; }
.cb-calc__stepper__ctrl button {
  width: 28px; height: 28px; border-radius: 4px;
  border: 1px solid var(--cb-warm-line); background: white;
  cursor: pointer; font-size: 16px; font-weight: 700;
}
.cb-calc__stepper__ctrl button:hover { background: var(--cb-onyx); color: white; border-color: var(--cb-onyx); }
.cb-calc__stepper__ctrl strong { font-family: var(--font-display); font-size: 22px; min-width: 18px; text-align: center; }

.cb-calc__toggle { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
.cb-calc__toggle button {
  padding: 14px; border-radius: 6px; cursor: pointer;
  border: 2px solid var(--cb-warm-line); background: white;
  font-family: var(--font-body); font-weight: 600; font-size: 14px;
}
.cb-calc__toggle button.is-active { border-color: var(--cb-onyx); background: var(--cb-onyx); color: var(--cb-bone); }

.cb-calc__postcode { margin-top: 12px; }
.cb-calc__postcode small { display: block; margin-top: 8px; color: var(--fg-3); font-size: 13px; }

.cb-calc__total {
  position: sticky; top: 100px;
  background: var(--cb-onyx); color: var(--cb-bone);
  border-radius: 16px;
  padding: 32px;
  box-shadow: var(--shadow-lg);
}
.cb-calc__total__head { display: flex; justify-content: space-between; align-items: baseline; margin-bottom: 12px; }
.cb-calc__total__cap { color: #B8B3A8; font-size: 13px; }
.cb-calc__total__big {
  font-family: var(--font-display); font-size: 96px; line-height: .9;
  color: var(--cb-acid); margin: 8px 0 0; letter-spacing: -.02em;
}
.cb-calc__total__sub { color: #7C7872; font-size: 13px; }

.cb-calc__breakdown {
  margin-top: 24px; padding-top: 20px;
  border-top: 1px solid rgba(255,255,255,.1);
  display: flex; flex-direction: column; gap: 8px;
}
.cb-calc__breakdown div {
  display: flex; justify-content: space-between;
  font-size: 14px;
}
.cb-calc__breakdown span { color: #B8B3A8; }
.cb-calc__breakdown strong { color: var(--cb-bone); font-family: var(--font-body); font-weight: 600; }

@media (max-width: 980px) {
  .cb-calc { grid-template-columns: 1fr; }
  .cb-calc__sizes { grid-template-columns: 1fr; }
  .cb-calc__total { position: static; }
}