.roi__intro { display: grid; gap: 16px; max-width: 68ch; margin-bottom: 34px; }
.roi__intro p { margin: 0; }
.roi__hint strong { color: var(--fg); font-weight: 600; }
.roi { display: grid; gap: 28px; align-items: start; }
@media (min-width: 960px) {
  .roi { grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); gap: 36px; }
  .roi__out { position: sticky; top: 92px; }
}

.roi fieldset { border: 0; padding: 0; margin: 0; min-width: 0; }
.roi fieldset + fieldset { margin-top: 28px; padding-top: 24px; border-top: 1px solid var(--border); }
.roi legend { font-family: var(--font-display); font-weight: var(--wt-display); font-size: 1.18rem; margin-bottom: 4px; }
.roi__hint { font-size: var(--fs-sm); color: var(--fg-faint); margin: 0 0 16px; }
.roi__grid { display: grid; gap: 14px 18px; }
@media (min-width: 560px) { .roi__grid { grid-template-columns: 1fr 1fr; } }
.roi__f { display: grid; gap: 6px; min-width: 0; }
.roi__f label { font-size: var(--fs-sm); font-weight: 500; color: var(--fg); }
.roi__in {
  display: flex; align-items: center; gap: 8px;
  border: 1px solid var(--border); border-radius: 10px; background: var(--surface);
  padding: 0 12px; min-height: 46px;
}
.roi__in:focus-within { border-color: var(--green-600); box-shadow: 0 0 0 3px rgba(61,122,111,.18); }
.roi__in b { font-weight: 500; color: var(--fg-faint); font-size: var(--fs-sm); flex: none; }
.roi__in input {
  width: 100%; min-width: 0; border: 0; background: transparent; font: inherit;
  font-size: 1.02rem; color: var(--fg); padding: 10px 0;
  font-variant-numeric: tabular-nums; -moz-appearance: textfield; appearance: textfield;
}
.roi__in input::-webkit-outer-spin-button, .roi__in input::-webkit-inner-spin-button { -webkit-appearance: none; margin: 0; }
.roi__in input:focus { outline: 0; }
.roi__f--wide { grid-column: 1 / -1; }
.roi__staff { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 10px; }
.roi__staff .roi__in b { font-size: .76rem; }
@media (max-width: 559px) { .roi__staff { grid-template-columns: 1fr; } }
.roi__sub { font-size: var(--fs-sm); color: var(--fg-faint); margin: 10px 0 0; font-variant-numeric: tabular-nums; }
.roi__sub strong { color: var(--fg); font-weight: 600; }

.roi__h3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; }
.roi__h3 .roi__f label { text-align: center; }

.roi__out .calc__out { padding: 26px 26px 24px; }
.roi__big { display: flex; align-items: baseline; gap: 10px; flex-wrap: wrap; }
.roi__big .calc__big { font-size: clamp(2.6rem, 1.6rem + 3vw, 3.6rem); }
.roi__big .calc__big.neg { color: #f3b58c; }
.roi__k { font-size: 10.5px; font-weight: 700; letter-spacing: .14em; text-transform: uppercase; color: rgba(246,244,239,.6); }
.roi__line { font-size: var(--fs-sm); color: rgba(246,244,239,.78); line-height: 1.5; margin-top: 10px; }
.roi__line strong { color: var(--bone); font-weight: 600; font-variant-numeric: tabular-nums; }

.roi__tbl { width: 100%; border-collapse: collapse; font-size: var(--fs-sm); margin-top: 18px; font-variant-numeric: tabular-nums; }
.roi__tbl th, .roi__tbl td { padding: 9px 8px; border-bottom: 1px solid var(--border); text-align: right; vertical-align: top; }
.roi__tbl th:first-child, .roi__tbl td:first-child { text-align: left; padding-left: 0; color: var(--fg-soft); font-weight: 500; white-space: nowrap; }
.roi__tbl thead th { font-size: .74rem; letter-spacing: .08em; text-transform: uppercase; color: var(--fg-faint); font-weight: 700; padding-top: 0; }
.roi__tbl td { color: var(--fg); font-weight: 600; }
.roi__tbl td.neg { color: var(--accent-deep); }
.roi__tbl tr:last-child td, .roi__tbl tr:last-child th { border-bottom: 0; }
@media (max-width: 559px) {
  .roi__tbl { font-size: .8rem; }
  .roi__tbl th, .roi__tbl td { padding: 8px 4px; }
  .roi__tbl th:first-child, .roi__tbl td:first-child { white-space: normal; }
  .roi__tbl thead th { font-size: .66rem; letter-spacing: .04em; }
}
.roi__per { margin-top: 18px; display: grid; gap: 8px; font-size: var(--fs-sm); color: var(--fg-soft); }
.roi__per div { display: flex; justify-content: space-between; gap: 12px; border-bottom: 1px dashed var(--border); padding-bottom: 8px; }
.roi__per div:last-child { border-bottom: 0; }
.roi__per strong { color: var(--fg); font-weight: 600; font-variant-numeric: tabular-nums; }
.roi__acts { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 20px; }
.roi__acts .btn { padding: 10px 16px; font-size: var(--fs-sm); }
.roi__copied { font-size: var(--fs-sm); color: var(--green-700); align-self: center; }
.roi__foot { font-size: .82rem; color: var(--fg-faint); margin-top: 16px; line-height: 1.55; }
.roi__foot a { color: var(--accent-deep); }

html:not(.js) .roi__out { display: none; }
html:not(.js) .roi__nojs { display: block; }
.roi__nojs { display: none; font-size: var(--fs-sm); color: var(--fg-soft); }

.roi__how { display: grid; gap: 18px; max-width: 68ch; }
.roi__how p { margin: 0; color: var(--fg-soft); }
.roi__how p strong { color: var(--fg); }
.roi__formula {
  font-family: var(--font-display); font-size: clamp(1.15rem, 1rem + .8vw, 1.5rem);
  color: var(--green-800); padding: 18px 22px; border-left: 3px solid var(--accent);
  background: var(--green-050); border-radius: 0 12px 12px 0; margin: 0;
}

@media print {
  .hdr, .ftr, .rail, .roi__acts, .reading, .cta, .roi__nojs { display: none !important; }
  .roi { grid-template-columns: 1fr; }
  .roi__out { position: static; }
  .roi__out .calc__out { background: #fff; color: #000; border: 1px solid #999; }
  .roi__line, .roi__line strong, .roi__k, .roi__big .calc__big { color: #000; }
}