.calc-page {
  background: var(--white);
}

.calc-wrap {
  width: min(920px, calc(100% - 40px));
  margin: 0 auto;
}

.calc-intro {
  padding: 28px 0 8px;
}

.calc-intro h1 {
  margin: 0 0 12px;
  max-width: 16em;
  font-size: clamp(32px, 4vw, 44px);
  line-height: 1.12;
  letter-spacing: -0.03em;
}

.calc-intro .lead {
  max-width: 40em;
  font-size: 18px;
  line-height: 1.5;
}

.calc-card,
.calc-block {
  margin-top: 28px;
  padding: 28px 28px 24px;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.calc-card {
  margin-top: 22px;
}

.calc-switch {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4px;
  padding: 4px;
  background: var(--khaki-100);
  border-radius: 12px;
}

.calc-switch button {
  min-height: 44px;
  padding: 10px 12px;
  border: 0;
  border-radius: 9px;
  background: transparent;
  color: var(--muted);
  font: inherit;
  font-size: 15px;
  font-weight: 700;
  line-height: 1.25;
  cursor: pointer;
}

.calc-switch button[aria-checked="true"] {
  background: var(--white);
  color: var(--green-800);
}

.calc-toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: flex-end;
  gap: 12px 20px;
  margin-top: 18px;
}

.calc-toolbar[hidden] {
  display: none;
}

.calc-examples {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 8px;
}

.calc-example-list {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 8px;
}

.calc-example-list[hidden] {
  display: none;
}

.calc-plain {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-height: 44px;
  color: var(--ink);
  font-size: 14px;
  font-weight: 700;
  cursor: pointer;
}

.calc-plain input {
  width: 18px;
  height: 18px;
  accent-color: var(--green-800);
}

.calc-examples {
  position: relative;
  max-width: 100%;
}

.calc-examples > button,
.calc-linkish {
  min-height: 44px;
  padding: 0;
  border: 0;
  background: none;
  color: var(--green-800);
  font: inherit;
  font-size: 14px;
  font-weight: 700;
  text-decoration: underline;
  text-underline-offset: 3px;
  cursor: pointer;
}

.calc-examples > button:hover,
.calc-linkish:hover {
  color: var(--green-950);
}

.calc-example-list button {
  min-height: 44px;
  padding: 8px 14px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--khaki-50);
  color: var(--ink);
  font: inherit;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
}

.calc-example-list button:hover {
  border-color: var(--green-700);
  color: var(--green-800);
}

.calc-panel {
  margin-top: 22px;
}

.calc-field {
  margin: 0 0 18px;
}

.calc-field label,
.calc-label {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-bottom: 8px;
  color: var(--ink);
  font-size: 15px;
  font-weight: 700;
  line-height: 1.35;
}

.calc-page input[type="text"],
.calc-page select {
  width: 100%;
  min-height: 48px;
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--white);
  color: var(--ink);
  font: inherit;
  font-size: 16px;
  font-variant-numeric: tabular-nums;
}

.calc-page input[aria-invalid="true"] {
  border-color: #8d4a4e;
}

.calc-hint,
.calc-error {
  margin: 6px 0 0;
  font-size: 13px;
  line-height: 1.45;
}

.calc-hint {
  color: var(--muted);
}

.calc-error {
  color: #6e3034;
  font-weight: 600;
}

.calc-unknown {
  margin-top: 12px;
  padding-top: 4px;
}

.calc-split,
.calc-ab {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px 20px;
}

.calc-arm {
  min-width: 0;
  padding: 16px 16px 12px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: var(--khaki-50);
}

.calc-arm h3 {
  margin: 0 0 2px;
  font-size: 18px;
  letter-spacing: -0.02em;
}

.calc-arm .calc-kicker {
  margin: 0 0 14px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 700;
}

.calc-rate {
  margin: 4px 0 0;
  color: var(--green-800);
  font-size: 14px;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
}

.calc-preview {
  margin: 8px 0 0;
  color: var(--green-800);
  font-size: 14px;
  font-weight: 700;
  line-height: 1.45;
}

.calc-preview span {
  display: block;
}

.calc-details {
  margin-top: 8px;
  border-top: 1px solid var(--line);
}

.calc-details summary {
  min-height: 44px;
  padding: 12px 0;
  color: var(--green-800);
  font-weight: 700;
  cursor: pointer;
}

.calc-details summary:hover {
  color: var(--green-950);
}

.calc-details-body {
  padding: 0 0 8px;
  color: var(--muted);
  font-size: 15px;
}

.calc-settings {
  display: grid;
  gap: 14px;
  max-width: 420px;
}

.calc-eq {
  margin: 8px 0;
  color: var(--ink);
  font-family: "Segoe UI", sans-serif;
  font-size: 15px;
}

.calc-result {
  margin-top: 22px;
  padding: 22px 22px 18px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: var(--khaki-50);
}

.calc-result h2 {
  margin: 0 0 12px;
  font-size: clamp(26px, 3vw, 34px);
  line-height: 1.15;
  letter-spacing: -0.03em;
}

.calc-result .calc-leadin {
  margin: 0 0 6px;
  color: var(--muted);
  font-size: 15px;
}

.calc-figure {
  margin: 0;
  font-size: clamp(22px, 2.4vw, 28px);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.25;
  font-variant-numeric: tabular-nums;
}

.calc-subfigure,
.calc-deltas,
.calc-note,
.calc-traffic-note {
  margin: 8px 0 0;
  font-size: 16px;
  line-height: 1.45;
}

.calc-biz {
  margin-top: 18px;
}

.calc-biz-units {
  margin-top: 10px;
}

.calc-deltas {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 14px;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
}

.calc-result.is-better {
  background: #f4f7f0;
  border-color: #d5decc;
}

.calc-result.is-better h2,
.calc-result.is-better .calc-figure {
  color: var(--green-800);
}

.calc-result.is-worse {
  background: #f8f2f1;
  border-color: #e3d0ce;
}

.calc-result.is-worse h2,
.calc-result.is-worse .calc-figure {
  color: #6e3034;
}

.calc-result.is-unclear {
  background: #f7f4ec;
  border-color: #e4dcc8;
}

.calc-result.is-unclear h2 {
  color: #5c5344;
}

.calc-result.is-srm {
  background: #fbf6ea;
  border-color: #ead9a8;
}

.calc-result.is-srm h2 {
  color: #6a5420;
}

.calc-alert {
  margin-top: 14px;
  padding-top: 12px;
  border-top: 1px solid rgba(106, 84, 32, 0.18);
  color: #5c4a28;
  font-size: 15px;
}

.calc-alert strong {
  display: block;
  margin-bottom: 4px;
  color: #6a5420;
}

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

.calc-quality li {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 8px 0;
  border-bottom: 1px solid var(--line);
  font-size: 15px;
}

.calc-quality li:last-child {
  border-bottom: 0;
}

.calc-quality b {
  font-weight: 700;
  text-align: right;
}

.calc-status-ok {
  color: var(--green-800);
}

.calc-status-warn {
  color: #6a5420;
}

.calc-ci-range,
.calc-why p,
.calc-practical p {
  margin: 6px 0 0;
  font-variant-numeric: tabular-nums;
}

.calc-block h2,
.calc-edu h2,
.calc-related h2 {
  margin: 0 0 10px;
  font-size: 26px;
  letter-spacing: -0.03em;
  line-height: 1.2;
}

.calc-edu {
  width: min(920px, calc(100% - 40px));
  margin: 36px auto 0;
}

.calc-edu section {
  margin-top: 26px;
}

.calc-edu h2 {
  font-size: 22px;
}

.calc-edu p {
  margin: 8px 0 0;
  color: var(--muted);
}

.calc-unreliable {
  opacity: 0.92;
}

.calc-unreliable-note {
  margin: 0 0 10px;
  color: #6a5420;
  font-weight: 700;
}

.calc-specs {
  margin: 0;
}

.calc-specs div {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 7px 0;
  border-bottom: 1px solid var(--line);
  font-size: 14px;
}

.calc-specs dt {
  color: var(--muted);
}

.calc-specs dd {
  margin: 0;
  font-weight: 700;
  text-align: right;
  overflow-wrap: anywhere;
}

.calc-related {
  margin-top: 36px;
  padding-bottom: 48px;
}

.calc-related h2 {
  margin-bottom: 18px;
}

.calc-related ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

.calc-related li + li {
  margin-top: 14px;
}

.calc-related a {
  color: var(--green-800);
  font-weight: 700;
  text-underline-offset: 3px;
}

.calc-related a:hover {
  color: var(--green-950);
}

.calc-faq {
  margin-top: 20px;
}

.tip {
  position: relative;
  display: inline-flex;
  vertical-align: middle;
}

.tip-btn {
  width: 44px;
  height: 44px;
  margin: -10px -8px;
  border: 0;
  border-radius: 999px;
  background: transparent;
  color: var(--green-700);
  font: inherit;
  font-size: 14px;
  font-weight: 800;
  line-height: 1;
  cursor: pointer;
  transition: color 180ms ease, background-color 180ms ease;
}

.tip-btn::before {
  content: "?";
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 18px;
  height: 18px;
  border: 1px solid currentColor;
  border-radius: 999px;
  font-size: 12px;
  transition: color 180ms ease, background-color 180ms ease, border-color 180ms ease;
}

.tip-btn:hover,
.tip-btn:focus-visible,
.tip.is-open .tip-btn {
  color: var(--green-950);
}

.tip-btn:hover::before,
.tip-btn:focus-visible::before,
.tip.is-open .tip-btn::before {
  background: var(--khaki-100);
  border-color: var(--green-800);
}

.tip-bubble {
  display: none;
  position: absolute;
  z-index: 4;
  top: calc(100% - 8px);
  left: 0;
  width: min(280px, 72vw);
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--white);
  color: var(--ink);
  font-size: 14px;
  font-weight: 500;
  line-height: 1.45;
  text-align: left;
}

.tip-bubble::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: -10px;
  height: 10px;
}

.tip.is-open .tip-bubble {
  display: block;
}

@media (hover: hover) and (pointer: fine) {
  .tip:hover .tip-bubble,
  .tip:focus-within .tip-bubble {
    display: block;
  }
}

.calc-arm:last-child .tip-bubble,
.calc-specs .tip-bubble {
  left: auto;
  right: 0;
}

.calc-noscript {
  margin-top: 12px;
  color: var(--muted);
}

@media (max-width: 768px) {
  .calc-card,
  .calc-block {
    padding: 20px 16px 16px;
  }

  .calc-split,
  .calc-ab {
    grid-template-columns: 1fr;
  }

  .calc-toolbar,
  .calc-examples,
  .calc-example-list {
    align-items: flex-start;
    justify-content: flex-start;
  }

  .calc-arm:last-child .tip-bubble {
    left: 0;
    right: auto;
  }

  .calc-related {
    margin-top: 32px;
    padding-bottom: 40px;
  }

  .calc-related h2 {
    margin-bottom: 16px;
  }

  .calc-related li + li {
    margin-top: 12px;
  }

  .final-cta {
    padding: 56px 0;
  }
}

@media (max-width: 390px) {
  .calc-wrap,
  .calc-edu {
    width: min(920px, calc(100% - 28px));
  }
}