/* ── ROI calculator widget · embed-friendly, shared component ──────── */
.roi-wrap {
  background: var(--bg);
  padding: clamp(72px, 10vh, 110px) var(--rail);
}
.roi-wrap .sp-k {
  max-width: var(--max);
  margin: 0 auto 14px;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-mid);
}
.roi-wrap .sp-h {
  max-width: var(--max);
  margin: 0 auto 14px;
  font-family: var(--serif);
  font-weight: 700;
  font-size: clamp(32px, 3.6vw, 48px);
  line-height: 1.05;
  letter-spacing: -0.03em;
}
.roi-wrap .sp-h em {
  color: var(--ink-mid);
  font-style: normal;
  font-weight: 700;
}
.roi-wrap .sp-p {
  max-width: var(--max);
  margin: 0 auto clamp(32px, 4vw, 56px);
  color: var(--ink-soft);
  font-size: 15px;
  line-height: 1.6;
  max-width: 62ch;
}

.roi-card {
  max-width: var(--max);
  margin: 0 auto;
  background: var(--bg-1);
  border: 1px solid var(--hair);
  border-radius: 16px;
  display: grid;
  grid-template-columns: 420px 1fr;
  min-height: 620px;
  overflow: hidden;
  box-shadow: 0 20px 60px -30px rgba(11, 12, 14, 0.18);
}

/* Input panel (left) */
.roi-inputs {
  background: var(--bg);
  padding: 32px;
  border-right: 1px solid var(--hair);
  display: flex;
  flex-direction: column;
  gap: 24px;
}
.roi-inputs h3 {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-mid);
  margin: 0 0 8px;
  font-weight: 500;
}
.roi-seg {
  display: grid;
  grid-auto-flow: column;
  gap: 4px;
  background: var(--bg-3);
  padding: 3px;
  border-radius: 8px;
}
.roi-seg button {
  border: 0;
  background: transparent;
  padding: 9px 10px;
  border-radius: 5px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ink-soft);
  cursor: pointer;
  transition: all 0.15s;
}
.roi-seg button.active {
  background: #fff;
  color: var(--ink);
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.05);
}

.roi-field {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.roi-field-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
}
.roi-field label {
  font-family: var(--sans);
  font-size: 13px;
  font-weight: 500;
  color: var(--ink);
}
.roi-field .hint {
  font-family: var(--mono);
  font-size: 10px;
  color: var(--ink-mid);
  letter-spacing: 0.04em;
}
.roi-field .val {
  font-family: var(--serif);
  font-weight: 700;
  font-size: 22px;
  color: var(--ink);
  letter-spacing: -0.02em;
  line-height: 1;
}
.roi-field .val em {
  font-family: var(--mono);
  font-weight: 400;
  font-size: 11px;
  color: var(--ink-mid);
  font-style: normal;
  margin-left: 4px;
  letter-spacing: 0.04em;
}

.roi-slider {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 4px;
  background: var(--bg-3);
  border-radius: 2px;
  outline: none;
  margin: 0;
}
.roi-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--ink);
  cursor: pointer;
  border: 3px solid #fff;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
  transition:
    background 0.15s,
    transform 0.1s;
}
.roi-slider::-webkit-slider-thumb:hover {
  background: var(--accent-ink);
  transform: scale(1.08);
}
.roi-slider::-moz-range-thumb {
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--ink);
  cursor: pointer;
  border: 3px solid #fff;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
}

.roi-foot {
  margin-top: auto;
  padding-top: 20px;
  border-top: 1px solid var(--hair);
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ink-mid);
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.roi-foot .pair {
  display: flex;
  justify-content: space-between;
}

/* Output panel (right) */
.roi-output {
  padding: 40px 40px 32px;
  background: #fff;
  display: flex;
  flex-direction: column;
  gap: 28px;
  position: relative;
}

.roi-headline {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 20px;
  align-items: end;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--hair);
}
.roi-headline-k {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent-ink);
  margin-bottom: 10px;
}
.roi-headline-v {
  font-family: var(--serif);
  font-weight: 700;
  font-size: clamp(56px, 7vw, 92px);
  line-height: 0.95;
  letter-spacing: -0.04em;
  color: var(--ink);
}
.roi-headline-v em {
  font-family: var(--mono);
  font-size: 18px;
  color: var(--ink-mid);
  font-weight: 500;
  letter-spacing: 0.02em;
  font-style: normal;
  margin-left: 6px;
}
.roi-headline-sub {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--ink-mid);
  letter-spacing: 0.02em;
  margin-top: 10px;
}
.roi-rating {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--pos);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 12px;
  background: rgba(14, 129, 112, 0.1);
  border-radius: 999px;
}
.roi-rating.warn {
  color: var(--amber);
  background: rgba(178, 118, 18, 0.1);
}
.roi-rating.neg {
  color: var(--neg);
  background: rgba(196, 60, 32, 0.1);
}

.roi-vs {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}
.vs-card {
  padding: 20px;
  border-radius: 10px;
}
.vs-card.now {
  background: var(--bg-2);
}
.vs-card.next {
  background: var(--ink);
  color: #fff;
  position: relative;
  overflow: hidden;
}
.vs-card.next::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 20% 20%, rgba(0, 191, 255, 0.2), transparent 60%);
  pointer-events: none;
}
.vs-k {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-mid);
  margin-bottom: 16px;
  position: relative;
}
.vs-card.next .vs-k {
  color: var(--d-accent);
}
.vs-rows {
  display: flex;
  flex-direction: column;
  gap: 10px;
  position: relative;
}
.vs-row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  font-family: var(--mono);
  font-size: 12px;
  color: var(--ink-soft);
  padding: 8px 0;
  border-top: 1px solid rgba(11, 12, 14, 0.06);
}
.vs-card.next .vs-row {
  color: rgba(255, 255, 255, 0.7);
  border-top-color: rgba(255, 255, 255, 0.08);
}
.vs-row:first-child {
  border-top: 0;
  padding-top: 0;
}
.vs-row b {
  font-family: var(--serif);
  font-weight: 700;
  font-size: 16px;
  color: var(--ink);
  letter-spacing: -0.015em;
}
.vs-card.next .vs-row b {
  color: #fff;
}
.vs-row .pos {
  color: var(--pos);
}
.vs-card.next .vs-row .pos {
  color: var(--d-pos);
}
.vs-total {
  margin-top: 16px;
  padding-top: 16px;
  border-top: 1px solid var(--hair-2);
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  position: relative;
}
.vs-card.next .vs-total {
  border-top-color: rgba(255, 255, 255, 0.15);
}
.vs-total span {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-mid);
}
.vs-card.next .vs-total span {
  color: rgba(255, 255, 255, 0.6);
}
.vs-total b {
  font-family: var(--serif);
  font-weight: 700;
  font-size: 28px;
  letter-spacing: -0.025em;
  color: var(--ink);
}
.vs-card.next .vs-total b {
  color: #fff;
}

.roi-chart-wrap {
  position: relative;
}
.roi-chart-head {
  display: flex;
  justify-content: space-between;
  align-items: end;
  margin-bottom: 12px;
}
.roi-chart-head h4 {
  font-family: var(--serif);
  font-weight: 600;
  font-size: 16px;
  margin: 0;
  letter-spacing: -0.015em;
}
.roi-chart-legend {
  display: flex;
  gap: 14px;
  font-family: var(--mono);
  font-size: 10px;
  color: var(--ink-mid);
  letter-spacing: 0.02em;
}
.roi-chart-legend i {
  display: inline-block;
  width: 12px;
  height: 2px;
  margin-right: 5px;
  vertical-align: middle;
}
#roiChart {
  width: 100%;
  height: 200px;
  display: block;
}

.roi-assumptions {
  background: var(--bg-1);
  border: 1px solid var(--hair);
  border-radius: 10px;
  padding: 18px 20px;
}
.roi-assumptions h5 {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-mid);
  margin: 0 0 12px;
  font-weight: 500;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.roi-assumptions h5 span {
  color: var(--accent-ink);
  cursor: pointer;
  font-size: 10px;
}
.roi-assumptions .grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
}
.roi-assumptions dt {
  font-family: var(--mono);
  font-size: 10px;
  color: var(--ink-mid);
  letter-spacing: 0.04em;
  margin-bottom: 4px;
}
.roi-assumptions dd {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--ink);
  margin: 0;
  letter-spacing: 0.02em;
}

.roi-cta {
  display: flex;
  gap: 12px;
  align-items: center;
  padding-top: 12px;
  border-top: 1px solid var(--hair);
}
.roi-cta a.btn-primary {
  flex-shrink: 0;
}
.roi-cta .disclaimer {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.04em;
  color: var(--ink-mid);
  line-height: 1.5;
}

@media (max-width: 960px) {
  .roi-card {
    grid-template-columns: 1fr;
  }
  .roi-inputs {
    border-right: 0;
    border-bottom: 1px solid var(--hair);
  }
  .roi-vs {
    grid-template-columns: 1fr;
  }
  .roi-assumptions .grid {
    grid-template-columns: 1fr 1fr;
  }
}