:root{--arc-ink: #1b2327;--arc-ink-soft: #3d484e;--arc-ink-mute: #56626a;--arc-ground: #ffffff;--arc-ground-alt: #eff4f3;--arc-rule: #d3dadc;--arc-rule-firm: #9aa6ab;--arc-accent: #00767a;--arc-accent-deep: #005457;--arc-focus: #a8430d;--arc-line-1: #00868a;--arc-line-2: #c0392b;--arc-line-3: #a86b00;--arc-line-4: #6a4fb3;--arc-line-5: #1f66b3;--arc-line-6: #3d7d2a;--arc-font-text: Athelas, Constantia, 'Sitka Text', Georgia, 'DejaVu Serif', serif;--arc-font-sign: 'Avenir Next', Avenir, 'Segoe UI', 'Helvetica Neue', Roboto, 'Liberation Sans', Arial, sans-serif;--arc-font-mono: 'SF Mono', Menlo, Consolas, 'Liberation Mono', monospace;--arc-step-0: 18px;--arc-step-1: 22.3px;--arc-step-2: 27.7px;--arc-step-3: 34.3px;--arc-step-4: 42.6px;--arc-page: 1120px}:root{--arc-gutter: 16px;--arc-measure: 37rem;--arc-lh-text: 1.66;--arc-line: var(--arc-rule-firm)}@media (min-width: 600px){:root{--arc-gutter: 24px}}@media (min-width: 880px){:root{--arc-gutter: 32px}}*, *::before, *::after{box-sizing: border-box}html{-webkit-text-size-adjust: 100%;text-size-adjust: 100%}body{margin: 0;background: var(--arc-ground);color: var(--arc-ink);font-family: var(--arc-font-text);font-size: calc(var(--arc-step-0) - 1px);line-height: var(--arc-lh-text);overflow-wrap: break-word;font-kerning: normal}@media (min-width: 880px){body{font-size: var(--arc-step-0)}}a{color: var(--arc-accent);text-decoration-thickness: 1px;text-underline-offset: 3px}a:hover{color: var(--arc-accent-deep);text-decoration-thickness: 2px}:focus-visible{outline: 3px solid var(--arc-focus);outline-offset: 2px;border-radius: 2px}h1, h2, h3, h4{font-family: var(--arc-font-sign);font-weight: 600;line-height: 1.2;letter-spacing: -0.005em;margin: 0}p, ol, ul, dl, dd, figure, blockquote{margin: 0}ol, ul{padding: 0}small{font-size: inherit}.arcL0{--arc-line: var(--arc-ink-mute)}.arcL1{--arc-line: var(--arc-line-1)}.arcL2{--arc-line: var(--arc-line-2)}.arcL3{--arc-line: var(--arc-line-3)}.arcL4{--arc-line: var(--arc-line-4)}.arcL5{--arc-line: var(--arc-line-5)}.arcL6{--arc-line: var(--arc-line-6)}.arcSkip{position: absolute;left: -9999px;top: 0;z-index: 10;padding: 10px 16px;background: var(--arc-ink);color: var(--arc-ground);font-family: var(--arc-font-sign);font-size: 15px;font-weight: 600;text-decoration: none}.arcSkip:focus{left: var(--arc-gutter);top: 8px;color: var(--arc-ground)}.arcEyebrow{font-family: var(--arc-font-sign);font-size: 12px;font-weight: 600;line-height: 1.4;letter-spacing: 0.12em;text-transform: uppercase;color: var(--arc-ink-mute)}.arcMeta{font-family: var(--arc-font-sign);font-size: 14px;line-height: 1.5;color: var(--arc-ink-mute)}.arcStandfirst{font-size: 1.16em;line-height: 1.5;color: var(--arc-ink-soft)}.arcDot{flex: none;display: inline-block;font-style: normal;width: 14px;height: 14px;border-radius: 50%;border: 3px solid var(--arc-line);background: var(--arc-ground)}.arcTag{display: inline-flex;align-items: center;gap: 8px;min-height: 24px;font-family: var(--arc-font-sign);font-size: 14px;font-weight: 600;line-height: 1.3;color: var(--arc-ink);text-decoration: none}.arcTag .arcDot{background: var(--arc-line)}.arcTag:hover{color: var(--arc-ink);text-decoration: underline}.arcStops{--arc-track: var(--arc-line);list-style: none;padding-left: 30px}.arcEntry{position: relative;padding: 8px 0}.arcEntry::before{content: "";position: absolute;left: -30px;top: 15px;z-index: 1;width: 14px;height: 14px;border-radius: 50%;border: 3px solid var(--arc-line);background: var(--arc-ground)}.arcEntry:not(:last-child)::after{content: "";position: absolute;left: -25px;top: 22px;bottom: -22px;width: 4px;background: var(--arc-track)}.arcEntryNow::before{background: var(--arc-line);width: 18px;height: 18px;left: -32px;top: 13px}.arcEntryLink{display: block;padding: 3px 0;font-family: var(--arc-font-sign);font-size: 16px;font-weight: 500;line-height: 1.35;color: var(--arc-ink);text-decoration: none}a.arcEntryLink:hover{color: var(--arc-accent);text-decoration: underline}.arcEntryNow .arcEntryLink{font-weight: 700}.arcEntry .arcMeta{font-size: 13px;margin-top: 2px}.arcHead{border-bottom: 3px solid var(--arc-ink)}.arcHeadInner{max-width: var(--arc-page);margin-inline: auto;padding: 20px var(--arc-gutter) 14px;display: flex;flex-wrap: wrap;align-items: baseline;gap: 4px 20px}.arcWordmark{font-family: var(--arc-font-sign);font-size: 30px;font-weight: 700;line-height: 1.05;letter-spacing: -0.02em}.arcBodyHome .arcWordmark{font-size: 38px}.arcWordmark a{color: var(--arc-ink);text-decoration: none}.arcWordmark a:hover{color: var(--arc-accent)}.arcTagline{font-family: var(--arc-font-sign);font-size: 15px;line-height: 1.4;color: var(--arc-ink-soft)}.arcHeadData{flex-basis: 100%;font-family: var(--arc-font-sign);font-size: 13px;line-height: 1.4;color: var(--arc-ink-mute)}.arcLines{max-width: var(--arc-page);margin-inline: auto;padding: 6px var(--arc-gutter) 10px;display: grid;grid-template-columns: repeat(2, minmax(0, 1fr));gap: 0 14px;border-top: 1px solid var(--arc-rule)}.arcStop{display: flex;align-items: center;gap: 9px;min-height: 36px;padding: 4px 0;font-family: var(--arc-font-sign);font-size: 14px;font-weight: 500;line-height: 1.25;color: var(--arc-ink);text-decoration: none}.arcStop:hover{color: var(--arc-ink)}.arcStop:hover .arcStopName{text-decoration: underline;text-underline-offset: 3px;text-decoration-thickness: 1px}.arcStopName{min-width: 0}.arcStopHere .arcDot, .arcStopWithin .arcDot{background: var(--arc-line)}.arcStopHere .arcStopName{font-weight: 700}@media (min-width: 600px){.arcHeadInner{padding-top: 24px}.arcLines{grid-template-columns: repeat(4, minmax(0, 1fr))}}@media (min-width: 880px){.arcHeadInner{padding: 30px var(--arc-gutter) 18px;gap: 6px 28px}.arcWordmark{font-size: 34px}.arcBodyHome .arcWordmark{font-size: 48px}.arcTagline{font-size: 16px}.arcHeadData{flex-basis: auto;margin-left: auto}.arcLines{position: relative;grid-template-columns: repeat(7, minmax(0, 1fr));gap: 0 8px;padding: 16px var(--arc-gutter) 14px}.arcLines::before{content: "";position: absolute;left: calc(var(--arc-gutter) + (100% - 2 * var(--arc-gutter) - 48px) / 14);right: calc(var(--arc-gutter) + (100% - 2 * var(--arc-gutter) - 48px) / 14);top: 29px;height: 4px;border-radius: 2px;background: var(--arc-rule-firm)}.arcStop{position: relative;z-index: 1;flex-direction: column;justify-content: flex-start;gap: 9px;padding: 4px 2px 2px;font-size: 13px;text-align: center}.arcStop .arcDot{width: 22px;height: 22px;border-width: 5px}}.arcMain{max-width: var(--arc-page);margin-inline: auto;padding: 28px var(--arc-gutter) 60px}@media (min-width: 880px){.arcMain{padding-top: 44px;padding-bottom: 80px}}.arcFront{display: grid;grid-template-columns: minmax(0, 1fr);gap: 40px}.arcPinned{border-top: 6px solid var(--arc-line);padding-top: 16px}.arcPinned h2{margin: 10px 0 14px;font-size: calc(var(--arc-step-2) + 1px);line-height: 1.14;letter-spacing: -0.012em;max-width: 26ch}.arcPinned h2 a{color: var(--arc-ink);text-decoration: none}.arcPinned h2 a:hover{color: var(--arc-accent);text-decoration: underline;text-decoration-thickness: 2px}.arcExcerpt{max-width: 40rem;font-size: 1.06em;color: var(--arc-ink-soft)}.arcExcerpt p + p{margin-top: 0.8em}.arcPinned .arcMeta{margin-top: 16px;display: flex;flex-wrap: wrap;align-items: center;gap: 4px 16px}.arcRefs h2, .arcRecent h2, .arcOnward h2, .arcLost h2{padding-bottom: 8px;margin-bottom: 6px;border-bottom: 1px solid var(--arc-rule)}.arcRecent{margin-top: 48px;max-width: 48rem}.arcPlan{margin-top: 56px}.arcPlanTitle{font-size: var(--arc-step-1);padding-bottom: 10px;margin-bottom: 6px;border-bottom: 3px solid var(--arc-ink)}.arcPlanGrid{display: grid;grid-template-columns: minmax(0, 1fr);gap: 0 56px}.arcLine{padding: 16px 0 24px;border-bottom: 1px solid var(--arc-rule)}.arcLine h3{font-size: 19px;line-height: 1.25}.arcLine h3 a{display: inline-flex;align-items: center;gap: 10px;min-height: 28px;color: var(--arc-ink);text-decoration: none}.arcLine h3 a:hover{text-decoration: underline}.arcLine h3 .arcDot{width: 18px;height: 18px;border-width: 4px;background: var(--arc-line)}.arcLineCount{margin: 4px 0 8px 28px;font-family: var(--arc-font-sign);font-size: 13px;line-height: 1.5;color: var(--arc-ink-mute)}@media (min-width: 880px){.arcFront{grid-template-columns: minmax(0, 2fr) minmax(0, 1fr);gap: 56px;align-items: start}.arcPinned h2{font-size: var(--arc-step-4);max-width: 22ch;margin: 12px 0 18px}.arcExcerpt{font-size: 1.12em}.arcPlanGrid{grid-template-columns: repeat(2, minmax(0, 1fr))}}.arcTrip{display: grid;grid-template-columns: minmax(0, 1fr);gap: 48px}.arcPiece, .arcRail{min-width: 0}.arcPieceHead{max-width: 46rem}.arcPieceLine{margin-bottom: 12px}.arcPieceHead h1{font-size: calc(var(--arc-step-2) + 3px);line-height: 1.14;letter-spacing: -0.014em;margin-bottom: 14px}.arcPieceHead .arcMeta{margin-top: 14px}.arcSeries{max-width: var(--arc-measure);margin-top: 28px;padding: 14px 18px 12px;border-top: 4px solid var(--arc-line);background: var(--arc-ground-alt)}.arcSeriesHead{display: flex;flex-wrap: wrap;justify-content: space-between;gap: 2px 16px;margin-bottom: 4px;font-family: var(--arc-font-sign);font-size: 14px;line-height: 1.45;color: var(--arc-ink-mute)}.arcSeriesHead b{color: var(--arc-ink);font-weight: 700}.arcSeries .arcEntryLink{font-size: 15px}.arcSeries .arcEntry::before{background: var(--arc-ground-alt)}.arcSeries .arcEntryNow::before{background: var(--arc-line)}.arcPart{display: block;font-size: 12px;font-weight: 600;letter-spacing: 0.1em;text-transform: uppercase;color: var(--arc-ink-mute)}a.arcEntryLink:hover .arcPart{color: var(--arc-ink-mute)}.arcProse{max-width: var(--arc-measure);margin-top: 32px}.arcProse > * + *{margin-top: 1.05em}.arcProse h2{font-size: var(--arc-step-1);line-height: 1.25;margin-top: 1.9em}.arcProse h3{font-size: 19px;line-height: 1.3;margin-top: 1.6em}.arcProse h2 + *, .arcProse h3 + *{margin-top: 0.55em}.arcProse ul, .arcProse ol{padding-left: 1.3em}.arcProse li + li{margin-top: 0.45em}.arcProse li::marker{color: var(--arc-ink-mute)}.arcProse blockquote{padding: 2px 0 2px 20px;border-left: 4px solid var(--arc-line);color: var(--arc-ink-soft)}.arcProse blockquote p + p{margin-top: 0.8em}.arcProse hr{border: 0;height: 3px;margin-block: 2em 0;background: repeating-linear-gradient(90deg, var(--arc-rule-firm) 0 22px, transparent 22px 36px)}.arcProse code{font-family: var(--arc-font-mono);font-size: 0.86em;padding: 1px 4px;border-radius: 3px;background: var(--arc-ground-alt);white-space: pre-wrap}.arcTableWrap{overflow-x: auto;max-width: 100%}.arcProse a{overflow-wrap: anywhere}.arcProse table{width: 100%;border-collapse: collapse;font-family: var(--arc-font-sign);font-size: 15px;line-height: 1.45;font-variant-numeric: tabular-nums}.arcProse th, .arcProse td{padding: 8px 14px 8px 0;border-bottom: 1px solid var(--arc-rule);text-align: left;vertical-align: top}.arcProse thead th{font-size: 12px;font-weight: 600;letter-spacing: 0.08em;text-transform: uppercase;color: var(--arc-ink-mute);border-bottom: 2px solid var(--arc-ink)}.arcPromote{max-width: var(--arc-measure);margin-top: 44px;padding: 14px 18px 16px;border-left: 6px solid var(--arc-line);background: var(--arc-ground-alt)}.arcPromoteTitle{margin-top: 6px;font-family: var(--arc-font-sign);font-size: 18px;font-weight: 600;line-height: 1.3}.arcPromoteTitle a{color: var(--arc-ink)}.arcPromoteTitle a:hover{color: var(--arc-accent-deep)}.arcPromoteNote{margin-top: 6px;font-family: var(--arc-font-sign);font-size: 14px;line-height: 1.5;color: var(--arc-ink-mute)}.arcOnward{max-width: var(--arc-measure);margin-top: 44px}.arcOnward .arcStops, .arcRefs .arcStops, .arcLost .arcStops{--arc-track: var(--arc-rule)}.arcPager{max-width: var(--arc-measure);margin-top: 36px;display: grid;gap: 12px}.arcPager a{display: block;padding: 12px 14px 14px;border: 1px solid var(--arc-rule);font-family: var(--arc-font-sign);color: var(--arc-ink);text-decoration: none}.arcPager a:hover{border-color: var(--arc-ink)}.arcPager a:hover .arcPagerTitle{text-decoration: underline}.arcPager .arcEyebrow{display: block;margin-bottom: 4px}.arcPagerTitle{display: block;font-size: 15px;font-weight: 500;line-height: 1.35}.arcRail{padding-top: 18px;border-top: 6px solid var(--arc-line);font-family: var(--arc-font-sign)}.arcRailTitle{margin-top: 8px;font-size: 18px;font-weight: 600;line-height: 1.3}.arcRailTitle a{display: inline-flex;align-items: center;gap: 10px;min-height: 28px;color: var(--arc-ink);text-decoration: none}.arcRailTitle a:hover{text-decoration: underline}.arcRailTitle .arcDot{width: 18px;height: 18px;border-width: 4px;background: var(--arc-line)}.arcRailHead .arcMeta{margin: 2px 0 10px 28px;font-size: 13px}.arcRail .arcEntryLink{font-size: 15px}@media (min-width: 600px){.arcPager{grid-template-columns: repeat(2, minmax(0, 1fr))}.arcPagerNext{grid-column: 2;text-align: right}}@media (min-width: 880px){.arcTrip{grid-template-columns: minmax(0, 1fr) 17.5rem;gap: 56px;align-items: start}.arcPieceHead h1{font-size: var(--arc-step-4)}.arcRail{margin-top: 4px}}.arcIndexHead{max-width: 48rem;padding-top: 16px;border-top: 6px solid var(--arc-line)}.arcIndexHead h1{display: flex;align-items: center;gap: 14px;margin: 8px 0 12px;font-size: calc(var(--arc-step-2) + 3px);line-height: 1.14}.arcIndexHead h1 .arcDot{width: 24px;height: 24px;border-width: 6px;background: var(--arc-line)}.arcIntro{max-width: var(--arc-measure);margin-top: 14px}.arcIntro > * + *{margin-top: 0.9em}.arcIndexHead .arcMeta{margin-top: 14px}.arcYear{max-width: 48rem;margin-top: 40px}.arcYear h2{display: flex;flex-wrap: wrap;align-items: baseline;gap: 2px 14px;padding-bottom: 8px;margin-bottom: 6px;border-bottom: 1px solid var(--arc-rule);font-size: var(--arc-step-1)}.arcYearCount{font-size: 14px;font-weight: 500;letter-spacing: 0;color: var(--arc-ink-mute)}@media (min-width: 880px){.arcIndexHead h1{font-size: var(--arc-step-3)}}.arcNotePage{max-width: 46rem}.arcNoteHead h1{font-size: calc(var(--arc-step-2) + 3px);line-height: 1.14;margin-bottom: 12px}.arcNoteHead .arcStandfirst{margin-top: 4px}.arcLost{max-width: var(--arc-measure);margin-top: 44px}@media (min-width: 880px){.arcNoteHead h1{font-size: var(--arc-step-3)}}.arcFoot{background: var(--arc-ground-alt)}.arcFoot::before{content: "";display: block;height: 3px;background: repeating-linear-gradient(90deg, var(--arc-ink) 0 28px, transparent 28px 46px)}.arcFootInner{max-width: var(--arc-page);margin-inline: auto;padding: 26px var(--arc-gutter) 40px;display: grid;gap: 10px 36px;font-family: var(--arc-font-sign);font-size: 14px;line-height: 1.5;color: var(--arc-ink-mute)}.arcFootMark{font-size: 18px;font-weight: 700;color: var(--arc-ink)}.arcFootNote{max-width: 38rem}.arcFootLinks{display: flex;flex-wrap: wrap;gap: 0 20px}.arcFootLinks a{display: inline-block;padding: 3px 0;color: var(--arc-ink-soft)}.arcFootLinks a:hover{color: var(--arc-ink)}@media (min-width: 880px){.arcFootInner{grid-template-columns: auto minmax(0, 1fr);align-items: baseline}.arcFootLinks{grid-column: 2}}