.tool-hero { padding: clamp(4rem, 8vw, 7rem) clamp(1.25rem, 5vw, 5.5rem); background: radial-gradient(circle at 88% 5%, rgba(200,245,96,.5), transparent 28%), #ebece2; }
.tool-hero > div { max-width: 1100px; }.tool-hero h1 { margin: 0; font: 400 clamp(3.4rem, 7vw, 6.5rem)/.92 Georgia, serif; letter-spacing: -.06em; overflow-wrap: anywhere; }.tool-hero p:last-child { max-width: 680px; color: var(--muted); font-size: 1.05rem; line-height: 1.7; }
.calculator-layout { padding: clamp(3rem, 7vw, 6rem) clamp(1.25rem, 5vw, 5.5rem); display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(320px, .85fr); gap: clamp(2rem, 6vw, 6rem); align-items: start; }
.calculator-form { padding: clamp(1.4rem, 4vw, 2.6rem); background: var(--panel); box-shadow: var(--shadow); }
.distance-fields { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 1.4rem 1rem; margin-bottom: 1.5rem; }.distance-fields .location-field:last-child { grid-column: 1 / -1; }.distance-swap { align-self: end; }.distance-route-action { margin-top: 1.4rem; }.distance-route-action .primary-button { background: var(--lime); color: var(--ink); }
.unit-options { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: .7rem; }.unit-options input { position: absolute; opacity: 0; }.unit-options span { display: flex; min-height: 78px; flex-direction: column; justify-content: center; border: 1px solid var(--line); padding: .8rem; font-weight: 800; cursor: pointer; }.unit-options small { margin-top: .25rem; color: var(--muted); font-weight: 500; }.unit-options input:checked + span { border-color: var(--green); background: var(--green); color: #fff; }.unit-options input:checked + span small { color: rgba(255,255,255,.75); }.unit-options input:focus-visible + span { outline: 3px solid var(--lime); outline-offset: 2px; }
.unit-summary { margin: .8rem 0 0; padding: .75rem .85rem; border-left: 3px solid var(--orange); background: #f7f3e9; color: var(--muted); font-size: .78rem; line-height: 1.5; }.unit-summary strong { color: var(--ink); }
.calculator-fields { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1.2rem 1.5rem; }.calculator-fields label > span { display: block; margin-bottom: .35rem; font-size: .78rem; font-weight: 800; }.calculator-fields input, .calculator-fields select { width: 100%; min-width: 0; border: 1px solid var(--line); background: #fff; padding: .8rem; color: var(--ink); font: inherit; }.calculator-fields label > small { display: block; margin-top: .35rem; color: var(--muted); font-size: .7rem; line-height: 1.4; }
.check-option { display: flex; gap: .65rem; align-items: center; margin: 1.5rem 0; font-weight: 750; }.check-option input { width: 1.1rem; height: 1.1rem; accent-color: var(--green); }
.recalculate-note { min-height: 1.3em; margin: .6rem 0 0; color: #88401f; font-size: .78rem; font-weight: 750; }
.calculator-output { position: sticky; top: 1.5rem; padding: clamp(1.5rem, 4vw, 2.7rem); background: var(--green); color: #fff; }.calculator-output .eyebrow { color: var(--lime); }.calculator-output h2 { margin: 0 0 1.8rem; font: 400 clamp(2.4rem, 5vw, 4.5rem)/1 Georgia, serif; overflow-wrap: anywhere; }.calculator-output > p:not(.eyebrow), .source-note { color: rgba(255,255,255,.72); line-height: 1.6; }.calculator-output dl { margin: 0 0 1.5rem; }.calculator-output dl div { display: flex; justify-content: space-between; gap: 1rem; padding: .9rem 0; border-top: 1px solid rgba(255,255,255,.25); }.calculator-output dt { color: rgba(255,255,255,.66); }.calculator-output dd { margin: 0; font-weight: 800; text-align: right; }.share-link { display: flex; justify-content: space-between; gap: 1rem; margin-top: 1.5rem; padding-top: .8rem; border-top: 1px solid #fff; color: #fff; font-weight: 800; text-decoration: none; }
.methodology { padding: clamp(3.5rem, 7vw, 6rem) clamp(1.25rem, 5vw, 5.5rem); display: grid; grid-template-columns: minmax(220px, .65fr) minmax(0, 1.35fr); gap: clamp(2rem, 6vw, 6rem); background: #fff; }.methodology h2 { margin: 0; font: 400 clamp(2.3rem, 5vw, 4rem)/1 Georgia, serif; }.methodology p { color: var(--muted); line-height: 1.7; }.methodology strong { color: var(--ink); }
.distance-explainer { padding: clamp(3.5rem,7vw,6rem) clamp(1.25rem,5vw,5.5rem); background: #e9ece2; }.distance-explainer-heading { max-width: 780px; }.distance-explainer-heading h2 { margin: 0 0 2.5rem; font: 400 clamp(2.3rem,5vw,4rem)/1 Georgia,serif; }.distance-explainer-grid { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: 1rem; }.distance-explainer article { padding: clamp(1.4rem,3vw,2rem); background: var(--panel); border-top: 4px solid var(--green); }.distance-explainer article > span { color: var(--orange); font: italic 1rem Georgia,serif; }.distance-explainer h3 { margin: 1rem 0 .7rem; font: 400 1.7rem/1.1 Georgia,serif; }.distance-explainer article p { margin: 0; color: var(--muted); line-height: 1.65; }
.converter-intro { display: grid; grid-template-columns: minmax(240px,.8fr) minmax(0,1.2fr); gap: clamp(2rem,6vw,6rem); padding: clamp(3rem,6vw,5rem) clamp(1.25rem,5vw,5.5rem) 2rem; }.converter-intro h2 { margin: 0; font: 400 clamp(2.2rem,4vw,3.8rem)/1 Georgia,serif; }.converter-intro > p { margin: 0; color: var(--muted); line-height: 1.7; }.converter-grid { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 1rem; padding: 1rem clamp(1.25rem,5vw,5.5rem) clamp(4rem,8vw,7rem); }.converter-card { padding: clamp(1.3rem,3vw,2rem); border-top: 4px solid var(--green); background: var(--panel); box-shadow: 0 10px 30px rgba(18,38,33,.07); }.converter-card.is-active { border-top-color: var(--orange); }.converter-card h2 { margin: 0 0 1.4rem; font: 400 2rem/1 Georgia,serif; }.converter-card label > span { display: block; margin-bottom: .4rem; color: var(--muted); font-size: .72rem; font-weight: 800; text-transform: uppercase; letter-spacing: .07em; }.converter-card input, .converter-card select { width: 100%; min-width: 0; border: 1px solid var(--line); background: #fff; padding: .75rem; color: var(--ink); font: inherit; }.converter-card input:focus, .converter-card select:focus { outline: 3px solid rgba(12,89,73,.2); border-color: var(--green); }.converter-unit-row { display: grid; grid-template-columns: minmax(0,1fr) 42px minmax(0,1fr); gap: .55rem; align-items: end; margin: 1rem 0; }.converter-swap { width: 42px; height: 42px; border: 1px solid var(--line); background: var(--paper); color: var(--green); font-size: 1.2rem; cursor: pointer; }.converter-result { margin-top: 1rem; padding: 1rem; border-left: 4px solid var(--orange); background: #edf4df; }.converter-result span, .converter-result small { display: block; color: var(--muted); }.converter-result span { font-size: .68rem; font-weight: 800; text-transform: uppercase; letter-spacing: .09em; }.converter-result strong { display: block; margin: .35rem 0; font: 400 clamp(2rem,4vw,3.2rem)/1 Georgia,serif; overflow-wrap: anywhere; }.converter-result small { line-height: 1.35; }.converter-method { border-top: 1px solid var(--line); }

@media (max-width: 900px) {
  .calculator-layout { grid-template-columns: 1fr; }.calculator-output { position: static; }
  .converter-grid, .distance-explainer-grid { grid-template-columns: 1fr; }
}
@media (max-width: 560px) {
  .calculator-fields, .unit-options, .methodology, .converter-intro { grid-template-columns: 1fr; }
  .distance-fields { grid-template-columns: 1fr; }.distance-fields .location-field:last-child { grid-column: auto; }.distance-swap { justify-self: start; padding: 0; }
  .converter-unit-row { grid-template-columns: minmax(0,1fr) 38px minmax(0,1fr); }.converter-swap { width: 38px; }
}