:root {
  --paper: #f4f7f9;
  --navy: #002c3e;
  --ink: #15191c;
  --steel: #56636b;
  --rule: #bfc7c9;
  --oxide: #9b2c24;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  background: var(--paper);
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: "Libre Franklin", sans-serif;
  font-weight: 400;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

h1,
h2,
p,
figure,
figcaption {
  margin: 0;
}

a {
  color: inherit;
  text-decoration: none;
}

button {
  font: inherit;
  color: inherit;
  background: none;
  border: 0;
  padding: 0;
  cursor: pointer;
}

img {
  border: 0;
}

:focus-visible {
  outline: 2px solid var(--navy);
  outline-offset: 2px;
}

.sc {
  font-family: Archivo, sans-serif;
  font-stretch: 118%;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
}

.site-head {
  box-sizing: content-box;
  padding: 0 20px;
}

.col {
  margin: 0 20px;
}

.top3b {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  column-gap: 14px;
  padding: 10px 0 8px;
}

.top3b .sl {
  justify-self: end;
}

.top3b a {
  display: block;
}

.sl svg {
  display: block;
  width: 64px;
  height: 64px;
  overflow: visible;
}

.mast {
  --u: 23;
  display: inline-block;
  color: var(--navy);
}

.fitbox {
  display: inline-block;
}

.fitbox.is-measuring .fit,
.fitbox.is-measuring .fitref {
  display: inline-block;
}

.the-row {
  display: flex;
  align-items: center;
  gap: calc(var(--u) * 0.25 * 1px);
}

.the-rule {
  flex: 1;
  height: max(1px, calc(var(--u) * 0.03 * 1px));
  background: var(--oxide);
}

.the-word {
  font-family: Archivo, sans-serif;
  font-stretch: 125%;
  font-weight: 600;
  font-size: calc(var(--u) * 0.3 * 1px);
  line-height: 1;
  letter-spacing: 0.5em;
  padding-left: 0.5em;
}

.fit,
.fitref {
  font-family: Rokkitt, serif;
  font-weight: 800;
  line-height: 0.98;
  white-space: nowrap;
}

.fit {
  font-size: calc(var(--u) * 1.02 * 1px);
  letter-spacing: 0.08em;
  margin-top: calc(var(--u) * 0.12 * 1px);
  text-align: center;
}

.fitref {
  font-size: calc(var(--u) * 1px);
  letter-spacing: 0.02em;
  margin-top: calc(var(--u) * 0.02 * 1px);
}

.mast-thick {
  margin-top: calc(var(--u) * 0.14 * 1px);
  height: max(2px, calc(var(--u) * 0.08 * 1px));
  background: var(--navy);
}

.mast-gap {
  height: calc(var(--u) * 0.12 * 1px);
}

.mast-thin {
  height: 1px;
  background: var(--navy);
}

.nav3 {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 40px;
  border-top: 1px solid var(--navy);
  border-bottom: 3px solid var(--navy);
  position: relative;
  color: var(--navy);
}

.nav3::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -6px;
  height: 1px;
  background: var(--navy);
}

.nav3 .nl {
  display: flex;
  gap: 18px;
  font-size: 11.5px;
}

.nav3 .nl a,
.nav3 .nl span {
  padding: 3px 0 2px;
}

.nav3 .nl a.on {
  border-bottom: 2px solid var(--oxide);
}

.cur {
  font-weight: 500;
  font-size: 13.5px;
  line-height: 1;
  color: var(--steel);
  white-space: nowrap;
}

a.u {
  color: var(--steel);
  text-decoration: underline;
  text-decoration-color: var(--rule);
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

a.u2 {
  color: var(--navy);
  text-decoration: underline;
  text-decoration-color: var(--rule);
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

a.u:visited {
  color: var(--steel);
}

a.u2:visited,
.nav3 a:visited,
.e h2 a:visited,
.e h1 a:visited {
  color: var(--navy);
}

.e {
  padding: 12px 0 10px;
  border-bottom: 1px solid var(--rule);
}

.lead {
  padding-top: 16px;
  padding-bottom: 14px;
  border-bottom: 0;
}

article.e:last-of-type {
  border-bottom: 0;
}

.leadrule {
  height: 3px;
  background: var(--navy);
  position: relative;
  margin-bottom: 6px;
}

.leadrule::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -6px;
  height: 1px;
  background: var(--navy);
}

.lb {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 5px;
  font-family: Archivo, sans-serif;
  font-stretch: 118%;
  font-weight: 600;
  font-size: 13px;
  line-height: 1;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--steel);
}

.lead .lb {
  margin-bottom: 9px;
}

.e h2,
.e h1 {
  font-family: "Zilla Slab", serif;
  font-weight: 700;
  letter-spacing: -0.005em;
  font-size: 20px;
  line-height: 1.14;
  color: var(--navy);
}

.e h2 a,
.e h1 a {
  color: var(--navy);
}

.lead h2,
.lead h1 {
  font-size: 36px;
  line-height: 1.06;
  letter-spacing: -0.01em;
}

.tk {
  font-size: 16px;
  line-height: 1.4;
  margin-top: 4px;
  color: var(--ink);
}

.lead .tk {
  font-size: 18px;
  line-height: 1.42;
  margin-top: 10px;
}

.for {
  font-size: 16px;
  line-height: 1.4;
  margin-top: 6px;
  color: var(--ink);
}

.for b {
  font-weight: 650;
  color: var(--navy);
}

.brief {
  margin-top: 16px;
  border-top: 3px solid var(--navy);
  position: relative;
  padding-top: 12px;
}

.brief::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 4px;
  height: 1px;
  background: var(--navy);
}

.brief-sec {
  padding: 12px 0;
  border-bottom: 1px solid var(--rule);
}

.brief-sec:last-child {
  border-bottom: 0;
  padding-bottom: 2px;
}

.e h2.brief-k {
  font-family: Archivo, sans-serif;
  font-stretch: 118%;
  font-weight: 600;
  font-size: 12px;
  line-height: 1.3;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--steel);
  margin: 0 0 6px;
}

.e h2.brief-k::before {
  content: "";
  display: inline-block;
  width: 14px;
  height: 2px;
  margin-right: 8px;
  background: var(--oxide);
  vertical-align: 3px;
}

.brief-p {
  font-size: 16px;
  line-height: 1.45;
  color: var(--ink);
  overflow-wrap: anywhere;
}

.brief-p a {
  overflow-wrap: anywhere;
}

.cr {
  font-weight: 500;
  font-size: 14px;
  line-height: 1.35;
  margin-top: 5px;
  color: var(--steel);
}

.lead .cr {
  margin-top: 8px;
}

.via {
  margin-top: 4px;
  color: var(--steel);
  font-weight: 500;
  font-size: 14px;
  line-height: 1.35;
}

a.dl {
  white-space: nowrap;
  color: inherit;
  text-decoration: none;
}

.nw {
  white-space: nowrap;
}

.sig {
  font-weight: 500;
  margin-top: 8px;
  color: var(--ink);
}

.fig {
  margin-top: 12px;
}

.fig picture {
  display: block;
  width: 100%;
  aspect-ratio: 16 / 9;
}

.fig img {
  display: block;
  width: 100%;
  height: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  object-position: center;
}

.fig .ic,
.chart .ic {
  font-weight: 500;
  font-size: 13px;
  line-height: normal;
  color: var(--steel);
}

.fig .ic {
  margin-top: 6px;
}

.lead > .fig:first-child {
  margin: 0 0 12px;
}

a.shot,
button.shot,
iframe.shot {
  position: relative;
  display: block;
  width: 100%;
  margin: 0;
  padding: 0;
  border: 0;
  border-radius: 0;
  background: var(--navy);
  color: inherit;
  line-height: 0;
  text-align: start;
}

.shot img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  border-radius: 0;
}

iframe.shot {
  aspect-ratio: 16 / 9;
  height: auto;
}

.tri {
  position: absolute;
  left: 50%;
  top: 50%;
  width: 12%;
  min-width: 46px;
  max-width: 64px;
  aspect-ratio: 30 / 34;
  color: var(--ink);
  transform: translate(-50%, -50%);
  pointer-events: none;
}

.tri svg {
  display: block;
  width: 100%;
  height: 100%;
}

.lead > a.shot {
  margin: 0 0 12px;
}

.lead.main .shot {
  margin-top: 12px;
}

.chart .ct {
  font-family: Archivo, sans-serif;
  font-stretch: 118%;
  font-weight: 600;
  font-size: 13px;
  line-height: 1.3;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--navy);
  padding: 9px 0 12px;
  border-top: 2px solid var(--navy);
}

.chart .ic {
  border-top: 1px solid var(--rule);
  padding-top: 6px;
}

.chart-d,
.chart-n {
  display: none;
}

.chart-m,
.chart-n,
.chart-d {
  line-height: 0;
}

.chart svg {
  display: block;
  width: 100%;
  height: auto;
}

.foot {
  margin-top: 8px;
}

.acts {
  display: flex;
  align-items: center;
  gap: 26px;
}

.sharewrap {
  position: relative;
}

.act {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-weight: 500;
  font-size: 14.5px;
  line-height: normal;
  color: var(--navy);
}

.act svg {
  display: block;
  width: 18px;
  height: 18px;
}

.act .label {
  display: none;
}

.act .ok {
  display: none;
  font-weight: 500;
  color: var(--navy);
}

.act.is-copied .ok {
  display: inline;
  margin-left: 8px;
  font-size: 14px;
}

.act::after {
  content: "";
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  width: 44px;
  top: -8px;
  bottom: -14px;
}

.smenu {
  position: absolute;
  left: 0;
  top: calc(100% + 10px);
  z-index: 2;
  min-width: 160px;
  display: flex;
  flex-direction: column;
  background: var(--paper);
  border: 1px solid var(--navy);
  border-top: 2px solid var(--oxide);
}

.smenu[hidden] {
  display: none;
}

.smenu a {
  display: flex;
  align-items: center;
  min-height: 44px;
  padding: 14px;
  font-weight: 500;
  font-size: 14.5px;
  line-height: 1;
  color: var(--navy);
}

.smenu a + a {
  border-top: 1px solid var(--rule);
}

.smenu a:visited {
  color: var(--navy);
}

.copyfall {
  display: block;
  width: min(100%, 420px);
  margin-top: 8px;
  padding: 6px 8px;
  font: 500 14.5px "Libre Franklin", sans-serif;
  color: var(--navy);
  background: var(--paper);
  border: 1px solid var(--navy);
}

.pager {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 12px;
}

.pager a {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  font-family: Archivo, sans-serif;
  font-stretch: 118%;
  font-weight: 600;
  font-size: 11.5px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--navy);
}

.pager a.older {
  margin-left: auto;
}

.ft3 {
  border-top: 1px solid var(--navy);
  margin-top: 10px;
  padding: 10px 0 26px;
}

.ft3 .soc3 {
  display: flex;
  align-items: center;
  margin-left: -14px;
}

.ft3 a.soc {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  margin: -6px 0;
}

.back {
  margin-top: 4px;
  margin-bottom: -14px;
}

.back a {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  color: var(--navy);
  font-size: 11.5px;
  letter-spacing: 0.2em;
}

.lead.main {
  padding-top: 12px;
}

.lead.main .cr {
  margin-top: 10px;
}

.more {
  margin-top: 22px;
  border-top: 2px solid var(--navy);
}

#more-h {
  padding: 9px 0 0;
  color: var(--navy);
  font-size: 13px;
  line-height: 1.3;
  letter-spacing: 0.18em;
}

.more article.e:last-of-type {
  border-bottom: 0;
}

.about-copy {
  padding: 16px 0 0;
}

.about-copy h1 {
  font-family: "Zilla Slab", serif;
  font-weight: 700;
  font-size: 36px;
  line-height: 1.06;
  letter-spacing: -0.01em;
  color: var(--navy);
}

.about-copy p {
  margin-top: 13px;
  font-weight: 400;
  font-size: 17px;
  line-height: 1.5;
  letter-spacing: normal;
  color: var(--ink);
}

.about-copy p:first-of-type {
  margin-top: 14px;
}

.about-copy .kd {
  font: inherit;
  color: inherit;
  letter-spacing: inherit;
  text-transform: none;
  white-space: nowrap;
}

.about-copy + .ft3 {
  margin-top: 26px;
}

@media (hover: hover) {
  .e h2 a:hover,
  .e h1 a:hover {
    text-decoration: underline;
    text-decoration-thickness: 1px;
    text-underline-offset: 3px;
    text-decoration-color: var(--navy);
  }

  a.dl:hover,
  a.u:hover {
    text-decoration-color: var(--steel);
  }

  a.dl:hover {
    text-decoration: underline;
    text-decoration-thickness: 1px;
    text-underline-offset: 3px;
  }

  a.u2:hover {
    text-decoration-color: var(--navy);
  }

  .nav3 .nl a:hover:not(.on) {
    box-shadow: inset 0 -2px 0 var(--navy);
  }

  .act:hover .label {
    text-decoration: underline;
    text-decoration-thickness: 1px;
    text-underline-offset: 3px;
  }
}

a.dl:focus-visible {
  text-decoration: underline;
  text-decoration-color: var(--steel);
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

@media (max-width: 383px) {
  .nav3 {
    height: auto;
    flex-wrap: wrap;
    padding: 9px 0;
    row-gap: 9px;
  }

  .cur {
    flex-basis: 100%;
    text-align: right;
  }

  .sl svg {
    width: 56px;
    height: 56px;
  }

  .chart-m {
    display: none;
  }

  .chart-n {
    display: block;
  }
}

@media (min-width: 768px) {
  .site-head {
    box-sizing: content-box;
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 clamp(32px, 5.56vw, 80px);
  }

  .col {
    width: min(680px, calc(100% - 64px));
    margin: 0 auto;
  }

  .top3b {
    column-gap: 28px;
    padding: 20px 0 14px;
  }

  .sl svg {
    width: 104px;
    height: 104px;
  }

  .mast {
    --u: 34;
  }

  .nav3 {
    height: 44px;
  }

  .nav3 .nl {
    gap: 44px;
    font-size: 12.5px;
  }

  .nav3 .nl a,
  .nav3 .nl span {
    padding: 4px 0 3px;
  }

  .cur {
    font-size: 16px;
  }

  .e {
    padding: 22px 0 18px;
  }

  .lead {
    padding-top: 30px;
    padding-bottom: 22px;
  }

  .lb {
    margin-bottom: 8px;
  }

  .lead .lb {
    margin-bottom: 12px;
  }

  .e h2,
  .e h1 {
    font-size: 28px;
    line-height: 1.15;
    letter-spacing: -0.005em;
  }

  .lead h2,
  .lead h1 {
    font-size: 52px;
    line-height: 1.05;
    letter-spacing: -0.012em;
  }

  .tk {
    font-size: 18px;
    line-height: 1.5;
    margin-top: 8px;
  }

  .lead .tk {
    font-size: 21px;
    line-height: 1.5;
    margin-top: 14px;
  }

  .for {
    font-size: 17px;
    line-height: 1.5;
    margin-top: 8px;
  }

  .e h2.brief-k {
    font-size: 13px;
    letter-spacing: 0.16em;
  }

  .brief-p {
    font-size: 18px;
    line-height: 1.5;
  }

  .brief-sec {
    padding: 14px 0;
  }

  .cr {
    font-size: 14.5px;
    line-height: normal;
    margin-top: 9px;
  }

  .lead .cr {
    margin-top: 10px;
  }

  .via {
    font-size: 14.5px;
    line-height: normal;
  }

  .fig {
    margin-top: 16px;
  }

  .fig .ic {
    margin-top: 7px;
  }

  .lead > .fig:first-child {
    margin: 0 0 18px;
  }

  .lead > a.shot {
    margin: 0 0 18px;
  }

  .lead.main .shot {
    margin-top: 16px;
  }

  .chart-m,
  .chart-n {
    display: none;
  }

  .chart-d {
    display: block;
  }

  .foot {
    margin-top: 14px;
  }

  .acts {
    gap: 22px;
  }

  .act svg {
    width: 17px;
    height: 17px;
  }

  .act .label {
    display: inline;
  }

  .act.is-copied .label {
    display: none;
  }

  .act.is-copied .ok {
    display: inline;
    margin-left: 0;
    font-size: 14.5px;
  }

  .act::after {
    width: max(100%, 44px);
    top: -13px;
    bottom: -13px;
  }

  .pager {
    margin-top: 22px;
  }

  .pager a {
    font-size: 12.5px;
  }

  .ft3 {
    margin-top: 14px;
  }

  .back {
    margin-top: 12px;
  }

  .back a {
    font-size: 12.5px;
  }

  .lead.main {
    padding-top: 22px;
  }

  .lead.main .fig {
    margin-top: 16px;
  }

  .lead.main .fig .ic {
    margin-top: 7px;
  }

  .lead.main .cr {
    margin-top: 12px;
  }

  .more {
    margin-top: 34px;
  }

  .about-copy {
    padding-top: 30px;
  }

  .about-copy h1 {
    font-size: 52px;
    line-height: 1.05;
    letter-spacing: -0.012em;
  }

  .about-copy p {
    margin-top: 16px;
    font-size: 18px;
    line-height: 1.6;
  }

  .about-copy p:first-of-type {
    margin-top: 22px;
  }

  .about-copy + .ft3 {
    margin-top: 38px;
  }
}

/* Photo focal points from figure.objectPosition. Other photos stay centered. */
[data-slug="boom-supersonic-ships-its-first-turbine-core-and-opens-a-2"] .fig img {
  object-position: 70% 50%;
}
[data-slug="ple-12-stars-physical-engineering-s-last-exam"] .fig img {
  object-position: 50% 50%;
}