@font-face {
  font-family: Manrope;
  src: url("./assets/Manrope-Regular.ttf");
  font-weight: 400 600;
  font-display: swap;
}
@font-face {
  font-family: Manrope;
  src: url("./assets/Manrope-ExtraBold.ttf");
  font-weight: 700 900;
  font-display: swap;
}
:root {
  --ink: #152b3b;
  --navy: #0b2236;
  --blue: #2f66df;
  --wash: #f5f7f8;
  --line: #dce3e7;
  --muted: #687b88;
  --green: #2d796e;
  --radius: 18px;
  font-family: Manrope, sans-serif;
  font-synthesis: none;
}
.studio {
  background: #f5f7f8;
}
.studio button,
.studio input {
  font-family: inherit;
}
.studio h1,
.studio h2,
.studio h3 {
  letter-spacing: -0.045em;
}
.studio h1,
.studio h2 {
  font-family: Lora, serif;
  font-weight: 500;
}
.studio .topbar {
  height: 76px;
  background: #fff;
  color: var(--ink);
  border-bottom: 1px solid var(--line);
  padding: 0 30px;
  box-shadow: none;
  z-index: 80;
}
.studio .brand {
  color: var(--navy);
  gap: 12px;
}
.studio .brand img {
  filter: brightness(0.3) sepia(1) saturate(4) hue-rotate(165deg);
  width: 29px;
  height: 29px;
}
.studio .brand > span {
  display: flex;
  align-items: center;
  gap: 18px;
  font:
    800 16px Manrope,
    sans-serif;
  letter-spacing: -0.6px;
}
.brand-divider {
  height: 22px;
  width: 1px;
  background: #dce3e7;
}
.studio .brand small {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.05em;
}
.studio .topbar nav {
  gap: 30px;
}
.studio .topbar nav > a,
.studio .topbar nav > button {
  font-size: 12px;
  color: #657786;
  padding: 25px 0;
}
.studio .topbar nav > .top-active {
  color: var(--ink);
  border: 0;
  position: relative;
}
.top-active:after {
  content: "";
  position: absolute;
  bottom: 0;
  height: 2px;
  background: var(--blue);
  left: 0;
  right: 0;
}
.preview-badge {
  font-size: 10px;
  letter-spacing: 0.06em;
  background: #f0f4fa;
  color: #536d88;
  padding: 7px 10px;
  border: 1px solid #dfe7ef;
  border-radius: 5px;
}
.studio .sidebar {
  top: 76px;
  left: 0;
  width: 252px;
  bottom: 0;
  background: #fff;
  border-radius: 0;
  border-right: 1px solid var(--line);
  padding: 24px 22px;
  box-shadow: none;
}
.studio .sidebar-home {
  font-size: 11px;
  text-decoration: none;
  display: block;
  font-weight: 600;
  margin-bottom: 30px;
  color: #637a89;
}
.eyebrow {
  font:
    800 9px/1.5 Manrope,
    sans-serif;
  letter-spacing: 0.17em;
  text-transform: uppercase;
  color: #6b7c88;
}
.sidebar-course .eyebrow {
  color: #2e66cb;
}
.studio .subjects {
  display: flex;
  gap: 12px;
  margin: 12px 0 20px;
}
.studio .subjects button {
  border: 0;
  background: transparent;
  box-shadow: none;
  padding: 0 0 5px;
  border-radius: 0;
  font-size: 11px;
  color: #83909b;
  border-bottom: 2px solid transparent;
}
.studio .subjects button[aria-pressed="true"] {
  color: var(--ink);
  border-bottom-color: var(--blue);
}
.studio .sidebar h2 {
  font:
    800 19px/1.35 Manrope,
    sans-serif;
  letter-spacing: -0.6px;
  margin: 0 0 13px;
}
.side-meta {
  display: flex;
  justify-content: space-between;
  font-size: 8px;
  font-weight: 800;
  letter-spacing: 0.15em;
  color: #8998a2;
  border-bottom: 1px solid var(--line);
  padding-bottom: 20px;
}
.studio #contents {
  margin-top: 18px;
  gap: 4px;
}
.studio #contents a {
  min-height: 44px;
  grid-template-columns: 20px 1fr 14px;
  font-size: 10.5px;
  padding: 11px 8px;
  border-radius: 7px;
  position: relative;
  color: #71818d;
  line-height: 1.5;
}
.studio #contents a:first-child {
  font-size: 10px;
  color: #294c68;
  margin-bottom: 7px;
}
.studio #contents a:first-child:before {
  content: "✧";
  display: inline;
  margin-right: 9px;
}
.studio #contents a.active {
  background: #edf3fb;
  color: #2258b4;
  font-weight: 800;
}
.studio #contents a .nav-num {
  color: #a1afb9;
  font-size: 9px;
}
.studio #contents a.active .nav-num {
  color: #3d74ce;
}
.studio .done-dot {
  color: #328475;
}
.studio .side-bottom {
  margin-top: auto;
  border-top: 1px solid var(--line);
  padding-top: 20px;
}
.studio .progress-label {
  font-size: 9px;
  color: #6c808e;
}
.studio .progress-label strong {
  font-size: 10px;
  color: var(--ink);
}
.studio .progress-track {
  height: 4px;
  background: #edf1f4;
  border-radius: 9px;
  margin: 10px 0;
}
.studio #progress-fill {
  background: #438980;
}
.studio .side-bottom p {
  font-size: 8px;
  color: #91a0aa;
  line-height: 1.7;
}
.studio .side-selection-link {
  font-size: 9px;
  color: #718592;
}
.studio #main {
  margin-left: 252px;
  padding: 28px clamp(24px, 4vw, 70px) 40px;
  max-width: none;
  outline: 0;
}
.chapter-hero {
  position: relative;
  isolation: isolate;
  min-height: 430px;
  border-radius: 18px;
  overflow: hidden;
  color: #fff;
  display: flex;
  align-items: center;
  background: #0b253b;
  margin-bottom: 34px;
}
.hero-landscape {
  position: absolute;
  z-index: -2;
  inset: 0;
  background: url("assets/alpine.webp") center/cover;
  transform: scale(1.025);
  animation: hero-settle 1.5s cubic-bezier(0.2, 0.7, 0.2, 1) both;
}
.chapter-hero:after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background:
    linear-gradient(
      90deg,
      rgba(9, 30, 49, 0.84),
      rgba(10, 32, 51, 0.48) 52%,
      rgba(10, 32, 51, 0.06)
    ),
    linear-gradient(0deg, rgba(9, 30, 49, 0.45), transparent 40%);
}
.hero-copy {
  padding: 46px;
  max-width: 660px;
}
.hero-eyebrow {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 9px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: #c4d9e6;
}
.hero-eyebrow > span:last-child {
  margin-left: 16px;
  padding-left: 16px;
  border-left: 1px solid #ffffff45;
}
.live-dot {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: #a6e2d4;
  box-shadow: 0 0 0 4px #a6e2d41a;
}
.studio .chapter-hero h1 {
  font:
    500 clamp(30px, 3.5vw, 53px) / 1.12 Lora,
    serif;
  letter-spacing: -1.9px;
  color: #fff;
  margin: 26px 0 18px;
}
.hero-copy > p {
  max-width: 360px;
  font-size: 12px;
  line-height: 1.8;
  color: #d7e2eb;
  margin: 0 0 26px;
}
.hero-start {
  display: inline-flex;
  gap: 24px;
  align-items: center;
  border-radius: 6px;
  padding: 13px 16px;
  background: #fff;
  color: #14324b;
  text-decoration: none;
  font-size: 11px;
  font-weight: 800;
  box-shadow: 0 5px 20px #081e4126;
  transition:
    transform 0.2s,
    background 0.2s;
}
.hero-start:hover {
  transform: translateY(-2px);
  background: #e6f1ff;
}
.hero-start svg {
  width: 15px;
  height: 15px;
}
.hero-meta {
  display: flex;
  gap: 18px;
  font-size: 8px;
  color: #d1dfeb;
  margin-top: 28px;
}
.hero-meta span + span:before {
  content: "•";
  margin-right: 18px;
  color: #98bbc8;
}
.hero-caption {
  position: absolute;
  right: 27px;
  bottom: 25px;
  text-align: right;
  font-size: 8px;
  font-weight: 800;
  letter-spacing: 0.18em;
}
.hero-caption span {
  display: block;
  font-weight: 400;
  font-size: 8px;
  letter-spacing: 0;
  color: #cbdce9;
  margin-top: 8px;
}
.law-hero .hero-landscape {
  filter: hue-rotate(3deg) brightness(0.62);
  background-position: 65% 65%;
  transform: scale(1.45);
}
.law-hero:after {
  background: linear-gradient(90deg, #0b253bf5, #102c43b0 60%, #0c284c22);
}
.hero-flightpaths {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
  opacity: 0.9;
}
.hero-flightpaths > path {
  fill: none;
  stroke: #b4d6f2;
  stroke-dasharray: 6 9;
  stroke-width: 1.5;
  opacity: 0.55;
}
.hero-flightpaths g {
  filter: drop-shadow(0 9px 5px #05172f88);
}
.studio .studio-summary {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 25px 28px;
  box-shadow: 0 3px 4px #18324802;
  margin-bottom: 40px;
}
.summary-heading {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 20px;
  border-bottom: 1px solid #edf1f4;
  padding-bottom: 18px;
  margin-bottom: 22px;
}
.studio .summary-heading h2 {
  font:
    500 21px Lora,
    serif;
  margin: 0;
  letter-spacing: -0.6px;
}
.studio .summary-items {
  gap: 24px;
}
.studio .summary-item {
  border: 0;
}
.takeaway {
  display: flex;
  gap: 12px;
  border-right: 1px solid #edf1f4;
  padding-right: 15px;
}
.takeaway:last-child {
  border: 0;
  padding-right: 0;
}
.takeaway > span {
  font:
    500 23px Lora,
    serif;
  color: #93a9bf;
  line-height: 1.2;
}
.takeaway strong {
  display: block;
  font-size: 10px;
  line-height: 1.6;
  font-weight: 800;
  color: #263d4e;
}
.takeaway p {
  font-size: 10px;
  line-height: 1.7;
  color: #788994;
  margin: 7px 0 0;
}
.lessons-intro {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0 0 17px;
  border-bottom: 1px solid var(--line);
  margin-bottom: 36px;
}
.lessons-intro p {
  font:
    500 13px Lora,
    serif;
  color: #748694;
  margin: 0;
}
.studio .lesson {
  margin: 0 0 48px;
  padding: 0;
  border: 0;
  border-radius: 0;
  background: transparent;
  box-shadow: none;
  scroll-margin-top: 100px;
}
.lesson-heading {
  display: grid;
  grid-template-columns: 48px 1fr;
  gap: 10px;
  margin: 0 0 22px;
}
.lesson-index {
  font:
    500 28px Lora,
    serif;
  color: #8ca2b2;
  line-height: 1.5;
}
.lesson-index span {
  display: block;
  font:
    700 8px Manrope,
    sans-serif;
  letter-spacing: 0.14em;
  color: #b3c0c9;
}
.studio .lesson h2 {
  font-size: clamp(23px, 2.2vw, 32px);
  line-height: 1.25;
  color: #142c3e;
  max-width: 780px;
  margin: 8px 0 10px;
}
.studio .lesson-intro {
  font-size: 11px;
  line-height: 1.8;
  max-width: 680px;
  color: #6e818f;
  margin: 0;
}
.studio .lesson-foot {
  margin-top: 16px;
  padding: 13px 0 0;
  border-top: 0;
  min-height: 35px;
}
.lesson-reminder {
  font:
    800 7px Manrope,
    sans-serif;
  letter-spacing: 0.15em;
  color: #96a6b1;
  display: flex;
  gap: 20px;
  align-items: center;
}
.lesson-reminder > span {
  font-weight: 400;
  letter-spacing: 0;
}
.studio .complete-button {
  font-size: 9px;
  font-weight: 700;
  padding: 7px 12px;
  min-height: 32px;
  background: #fff;
  border: 1px solid #d8e3e9;
  border-radius: 20px;
  color: #5d788e;
  transition: all 0.2s;
}
.studio .complete-button:hover {
  border-color: #4a8c81;
  color: #31796f;
  background: #f1f8f5;
}
.studio .complete-button.completed {
  color: #277669;
  background: #e8f3ee;
  border-color: #c6dfd5;
}
.studio .panel {
  border-radius: 14px;
  background: #fff;
  border: 1px solid #dbe3e8;
  box-shadow: 0 8px 24px #15334c04;
  overflow: hidden;
}
.studio .diagram {
  background: #eff4f6;
  padding: 0;
  min-height: 310px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.studio .step-text,
.studio .lab-controls,
.studio .traffic-info {
  padding: 28px;
}
.studio .step-text h3,
.studio .traffic-info h3 {
  font-family: Lora, serif;
  font-size: 25px;
  font-weight: 500;
  line-height: 1.25;
  letter-spacing: -0.8px;
  margin: 20px 0 14px;
}
.studio .step-text p,
.studio .traffic-info p {
  font-size: 11px;
  color: #6d818e;
  line-height: 1.9;
}
.studio .step-text .controls {
  margin-top: 24px;
}
.studio .secondary,
.studio .primary,
.studio .chip {
  border-radius: 6px;
  font-size: 10px;
  padding: 10px 13px;
  min-height: 36px;
  box-shadow: none;
  transition:
    background 0.18s,
    transform 0.18s,
    border-color 0.18s;
}
.studio .primary {
  background: #163a59;
  border-color: #163a59;
  color: #fff;
}
.studio .primary:hover {
  background: #255575;
  transform: translateY(-1px);
}
.studio .secondary {
  border-color: #dce5eb;
  color: #526f83;
  background: #fff;
}
.studio .secondary:hover {
  background: #eff4f8;
}
.studio .chip {
  border: 1px solid #dce4e9;
  padding: 8px 14px;
  background: #fff;
  min-height: 34px;
  color: #677f90;
  font-size: 10px;
}
.studio .chip[aria-pressed="true"],
.studio .chip.active {
  background: #193e5b;
  border-color: #193e5b;
  color: #fff;
}
.studio .chips {
  gap: 7px;
}
.studio .controls {
  gap: 7px;
}
.studio .controls svg {
  width: 12px;
  height: 12px;
}
.studio .step-counter {
  font-size: 9px;
  color: #8093a0;
  gap: 5px;
}
.studio .step-counter i {
  width: 18px;
  height: 3px;
  background: #dfe7eb;
  border-radius: 4px;
}
.studio .step-counter i.on {
  background: #3b78b1;
}
.studio .lab-title {
  font-size: 8px;
  letter-spacing: 0.15em;
  color: #8296a5;
  font-weight: 800;
}
.studio .field {
  margin: 22px 0;
}
.studio .field label {
  font-size: 10px;
  font-weight: 800;
  color: #304e64;
}
.studio .field output {
  font-size: 11px;
  color: #3473aa;
  font-variant-numeric: tabular-nums;
}
.studio input[type="range"] {
  height: 5px;
  accent-color: #3978b2;
  cursor: ew-resize;
}
.studio .range-labels {
  font-size: 8px;
  color: #9aabb7;
}
.studio .readouts {
  gap: 12px;
  border-top: 1px solid #e8eef1;
  padding-top: 20px;
  margin-top: 20px;
}
.studio .readout span {
  font-size: 8px;
  color: #8b9da9;
  display: block;
  margin-bottom: 8px;
}
.studio .readout strong {
  font:
    800 22px Manrope,
    sans-serif;
  color: #254960;
  letter-spacing: -0.8px;
  font-variant-numeric: tabular-nums;
}
.studio .readout small {
  font-size: 9px;
  color: #8c9ea9;
}
.studio .result-note {
  font-size: 10px;
  background: #edf5f8;
  border-left: 2px solid #62a0ba;
  border-radius: 0 6px 6px 0;
  line-height: 1.8;
  color: #3c6479;
  margin-top: 20px;
  padding: 13px 15px;
}
.studio .smallnote {
  font-size: 8px;
  color: #8c9ca7;
  line-height: 1.8;
  margin: 13px 0;
}
.stage {
  position: relative;
  min-height: 400px;
  isolation: isolate;
  background: #edf3f5;
  overflow: hidden;
}
.stage svg {
  display: block;
  width: 100%;
  height: 100%;
}
.stage-head {
  position: absolute;
  z-index: 3;
  left: 20px;
  right: 20px;
  top: 18px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: #59788e;
  font-size: 8px;
  letter-spacing: 0.12em;
  font-weight: 800;
}
.stage-head span:first-child:before {
  content: "";
  display: inline-block;
  width: 4px;
  height: 4px;
  background: #609784;
  border-radius: 50%;
  margin-right: 7px;
}
.stage-head button {
  font-size: 8px;
  padding: 6px 9px;
  min-height: 0;
  background: #ffffffdd;
  border: 1px solid #cbd9e0;
  border-radius: 4px;
  color: #54728a;
}
.stage-foot {
  position: absolute;
  bottom: 16px;
  left: 20px;
  font-size: 7px;
  letter-spacing: 0.08em;
  color: #648395;
  z-index: 3;
}
.stage-readout {
  position: absolute;
  top: 65px;
  left: 22px;
  z-index: 2;
}
.stage-readout > span {
  font-size: 8px;
  letter-spacing: 0.13em;
  color: #8fa8b9;
  display: block;
}
.stage-readout > strong {
  font:
    500 30px Lora,
    serif;
  letter-spacing: -1px;
  color: #2e5772;
  display: block;
  margin-top: 7px;
}
.stage-readout small {
  font:
    700 9px Manrope,
    sans-serif;
  color: #6f8b9f;
}
.pressure-stage {
  height: 430px;
  background: #dae8ef;
}
.pressure-stage svg {
  position: absolute;
  inset: 0;
}
.pressure-stage .stage-head,
.pressure-stage .stage-foot {
  color: #ddebf3;
}
.pressure-stage .stage-readout > span,
.pressure-stage .stage-readout small {
  color: #c1d7e4;
}
.pressure-stage .stage-readout > strong {
  color: #fff;
}
.pressure-stage:before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(0deg, #112c4cb5, #24517855),
    url("assets/alpine.webp") center/cover;
}
.pressure-stage .air-layer {
  fill: #bce6ef;
  opacity: 0.1;
}
.pressure-stage .pressure-path {
  stroke: #d6f5ff;
  stroke-width: 2.5;
  fill: none;
  stroke-linecap: round;
}
.studio .pressure-layout {
  display: grid;
  grid-template-columns: 1.45fr 1fr;
}
.pressure-explain {
  padding: 30px;
  display: flex;
  flex-direction: column;
}
.pressure-explain h3 {
  font:
    500 27px/1.25 Lora,
    serif;
  margin: 27px 0 14px;
  letter-spacing: -0.8px;
}
.pressure-explain p {
  font-size: 11px;
  line-height: 1.9;
  color: #6e8291;
}
.pressure-explain .controls {
  margin-top: auto;
  padding-top: 22px;
}
.pressure-mini {
  display: flex;
  gap: 22px;
  border-top: 1px solid #e6edf0;
  margin-top: 24px;
  padding-top: 20px;
}
.pressure-mini span {
  display: block;
  font-size: 8px;
  color: #8ba1af;
}
.pressure-mini strong {
  display: block;
  font-size: 18px;
  letter-spacing: -0.8px;
  color: #365b74;
  margin-top: 6px;
}
.pressure-mini small {
  font-size: 9px;
  font-weight: 400;
  color: #8499a7;
}
.isa-scene {
  background: #edf3f5;
  min-height: 390px;
  position: relative;
  padding: 12px;
}
.isa-scene svg {
  width: 100%;
  height: 100%;
  min-height: 390px;
}
.plot-tick {
  font:
    10px Manrope,
    sans-serif;
  fill: #91a6b5;
}
.plot-label {
  font:
    800 9px Manrope,
    sans-serif;
  fill: #65839a;
  letter-spacing: 0.08em;
}
.iso-plane {
  filter: drop-shadow(0 5px 3px #24496844);
}
.dial-lab {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 14px;
  overflow: hidden;
}
.instrument-stage {
  min-height: 540px;
  background: radial-gradient(ellipse at 40% 35%, #385066, #152b3e 70%);
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 55px 25px 20px;
  overflow: hidden;
}
.instrument-stage:before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: repeating-linear-gradient(
    0deg,
    #ffffff02 0px,
    #ffffff02 1px,
    transparent 1px,
    transparent 4px
  );
  pointer-events: none;
}
.instrument-stage .stage-head {
  color: #adc2d0;
}
.instrument-stage .stage-head span:first-child:before {
  background: #97bcba;
}
.instrument-stage > svg {
  width: min(100%, 350px);
  height: auto;
  filter: drop-shadow(0 15px 20px #071829bb);
}
.instrument-strip {
  display: flex;
  justify-content: center;
  gap: 35px;
  width: 100%;
  margin-top: 25px;
}
.instrument-strip span {
  font-size: 7px;
  letter-spacing: 0.1em;
  color: #88a0b2;
  display: block;
  margin-bottom: 8px;
}
.instrument-strip strong {
  font:
    500 20px Lora,
    serif;
  color: #e4edf2;
}
.instrument-strip small {
  font-size: 9px;
  color: #9ab3c3;
  margin-left: 4px;
}
.instrument-controls {
  padding: 26px;
}
.instrument-controls .chips {
  flex-wrap: wrap;
}
.altitude-relation {
  height: 110px;
  border-radius: 8px;
  background: #f0f5f7;
  margin: 19px 0;
  overflow: hidden;
}
.altitude-relation svg {
  width: 100%;
  height: 100%;
}
.instrument-controls .field {
  margin: 19px 0;
}
.instrument-controls .result-note {
  margin-top: 14px;
}
.mini-cue {
  font-size: 8px;
  color: #8398a6;
  line-height: 1.7;
  margin: 14px 0 0;
}
.art-scene {
  height: 480px;
  position: relative;
  background: linear-gradient(#e9f0f4, #f6f8f7);
  overflow: hidden;
  border-radius: 12px;
}
.art-scene canvas {
  display: block;
  width: 100%;
  height: 100%;
  touch-action: none;
  outline: none;
}
.scene-toolbar {
  position: absolute;
  z-index: 4;
  top: 17px;
  left: 18px;
  right: 18px;
  display: flex;
  justify-content: space-between;
  gap: 8px;
  pointer-events: none;
}
.scene-toolbar > span {
  font-size: 8px;
  letter-spacing: 0.11em;
  color: #54728a;
  font-weight: 800;
  padding: 8px 0;
}
.scene-toolbar > div {
  display: flex;
  gap: 5px;
}
.scene-toolbar button {
  pointer-events: auto;
  border: 1px solid #cbd9e2;
  background: #ffffffdf;
  color: #4f6d83;
  font-size: 8px;
  padding: 7px 9px;
  border-radius: 5px;
  backdrop-filter: blur(8px);
  transition: background 0.2s;
}
.scene-toolbar button:hover {
  background: #fff;
}
.scene-toolbar button.active {
  background: #1d4b69;
  color: #fff;
  border-color: #1d4b69;
}
.scene-label {
  position: absolute;
  z-index: 3;
  pointer-events: none;
  font-size: 8px;
  font-weight: 800;
  border-radius: 4px;
  background: #fffffff2;
  border: 1px solid #d6e2e9;
  color: #31526a;
  padding: 7px 10px;
  box-shadow: 0 4px 10px #173d6010;
  transform: translate(-50%, -50%);
  white-space: nowrap;
}
.scene-label.warm {
  color: #966b43;
  border-color: #eadbcc;
}
.scene-label.cold {
  color: #4978a1;
  border-color: #ccdeed;
}
.scene-label strong {
  font:
    800 11px Manrope,
    sans-serif;
}
.scene-instruction {
  position: absolute;
  bottom: 16px;
  left: 18px;
  font-size: 8px;
  color: #72909f;
  pointer-events: none;
}
.scene-annotation {
  position: absolute;
  bottom: 16px;
  right: 18px;
  font-size: 7px;
  color: #8da0ad;
}
.scene-step-card {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 0;
  align-items: stretch;
}
.scene-step-card .art-scene {
  border-radius: 0;
  height: 465px;
}
.scene-explanation {
  padding: 30px;
  display: flex;
  flex-direction: column;
}
.scene-explanation h3 {
  font:
    500 26px/1.3 Lora,
    serif;
  letter-spacing: -0.8px;
  margin: 24px 0 15px;
}
.scene-explanation p {
  font-size: 11px;
  line-height: 1.9;
  color: #6f8391;
}
.scene-explanation .controls {
  margin-top: auto;
  padding-top: 22px;
}
.scene-takeaway {
  font-size: 10px;
  line-height: 1.8;
  background: #edf5f8;
  border-left: 2px solid #74a9bd;
  padding: 13px;
  margin-top: 20px;
  color: #466e82;
}
.scene-caption-row {
  display: flex;
  justify-content: space-between;
  padding: 15px 20px;
  background: #fff;
  border-top: 1px solid #e1e8ec;
  font-size: 9px;
  color: #678493;
}
.scene-caption-row b {
  color: #3b6176;
}
.traffic-layout {
  display: grid;
  grid-template-columns: 1.45fr 1fr;
}
.traffic-layout .art-scene {
  height: 450px;
  border-radius: 0;
}
.traffic-panel {
  padding: 28px;
  display: flex;
  flex-direction: column;
}
.traffic-panel h3 {
  font:
    500 27px/1.3 Lora,
    serif;
  margin: 23px 0 15px;
}
.traffic-panel p {
  font-size: 11px;
  line-height: 1.9;
  color: #6f8391;
  min-height: 80px;
}
.traffic-panel .controls {
  margin-top: auto;
}
.traffic-panel label {
  display: flex;
  justify-content: space-between;
  font-size: 8px;
  color: #90a2ae;
  margin: 20px 0 13px;
}
.traffic-panel input {
  width: 100%;
}
.traffic-legend {
  font-size: 8px;
  color: #8299a7;
  gap: 18px;
  margin-top: 20px;
}
.traffic-legend i {
  display: inline-block;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #326fa4;
  margin-right: 6px;
}
.traffic-legend i.other {
  background: #b98b55;
}
.traffic-switcher {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
  gap: 10px;
}
.traffic-switcher > .eyebrow {
  color: #8da0ac;
}
.studio .flip-grid {
  gap: 15px;
}
.studio .flip {
  border: 1px solid #dbe5e8;
  border-radius: 12px;
  min-height: 205px;
  padding: 26px;
  text-align: left;
  background: #fff;
  position: relative;
  box-shadow: 0 8px 20px #2a476a04;
  transition:
    transform 0.35s cubic-bezier(0.2, 0.7, 0.2, 1),
    background 0.35s,
    border-color 0.35s;
}
.studio .flip:hover {
  transform: translateY(-4px);
  border-color: #9eb9ce;
}
.studio .flip > b {
  font:
    500 35px Lora,
    serif;
  color: #315d80;
  letter-spacing: -1.4px;
}
.studio .flip > span {
  font-size: 11px;
  line-height: 1.8;
  color: #78909e;
  display: block;
  margin: 18px 0 30px;
}
.studio .flip > small {
  font-size: 8px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.09em;
  color: #456c89;
  position: absolute;
  bottom: 22px;
}
.studio .flip > small:after {
  content: " ↗";
  margin-left: 8px;
}
.studio .flip.revealed {
  background: #edf5f8;
  border-color: #a6c3d6;
  transform: translateY(-3px);
}
.studio .sort-card {
  border-radius: 12px;
  border: 1px solid var(--line);
  padding: 28px;
  background: #fff;
  margin-top: 18px;
}
.studio .sort-card > p {
  font:
    500 22px/1.4 Lora,
    serif;
  margin: 15px 0 24px;
  max-width: 650px;
}
.studio .sort-card .smallnote {
  font:
    800 8px Manrope,
    sans-serif;
  letter-spacing: 0.13em;
}
.studio .decision-layout {
  border: 1px solid var(--line);
  border-radius: 14px;
  overflow: hidden;
  box-shadow: 0 8px 24px #15334c04;
}
.studio .decision-map {
  background: #ecf2f5;
  padding: 30px;
  gap: 28px;
  min-height: 360px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.studio .decision-node {
  font-size: 12px;
  border: 1px solid #cbdbe4;
  border-radius: 8px;
  background: #f6fafb;
  padding: 16px 20px;
  position: relative;
  box-shadow: 0 4px 8px #17314b04;
}
.studio .decision-node:after {
  content: "";
  position: absolute;
  top: 100%;
  height: 28px;
  width: 1px;
  background: #bfd3df;
  left: 22px;
}
.studio .decision-node:last-child:after {
  display: none;
}
.studio .decision-node.current {
  border-color: #6d9fc3;
  background: #fff;
  box-shadow: 0 0 0 3px #e4eff7;
}
.studio .decision-question {
  padding: 35px;
  background: #fff;
}
.studio .decision-question h3 {
  font:
    500 27px/1.3 Lora,
    serif;
}
.studio .decision-question p {
  font-size: 11px;
  line-height: 1.8;
  color: #7b919e;
}
.studio .decision-question .controls {
  margin-top: 30px;
}
.studio .accordion {
  border: 1px solid var(--line);
  border-radius: 12px;
  background: #fff;
  overflow: hidden;
}
.studio .accordion button {
  font-size: 11px;
  padding: 18px 20px;
}
.studio .accordion .accordion-body {
  font-size: 11px;
  line-height: 1.8;
  color: #78909f;
}
.studio .sector-figure {
  border-radius: 12px;
  border: 1px solid #d9e4eb;
  background: #edf3f6;
  padding: 20px;
}
.studio .sector-figure svg {
  min-height: 230px;
}
.studio .cases-card {
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 30px;
  background: #fff;
}
.studio .cases-card h3 {
  font:
    500 26px Lora,
    serif;
  margin: 20px 0;
}
.studio .cases-card p {
  font-size: 12px;
  line-height: 1.9;
  color: #708796;
  max-width: 760px;
}
.studio .case-options {
  gap: 10px;
  margin: 24px 0;
}
.studio .case-options button {
  padding: 15px 18px;
  font-size: 11px;
  border-radius: 7px;
}
.studio .feedback {
  font-size: 11px;
  line-height: 1.8;
  border-radius: 8px;
  padding: 16px 18px;
  background: #eff5f7;
  color: #57798a;
  margin-top: 18px;
}
.studio .feedback:empty {
  display: none;
}
.studio .feedback.good {
  background: #eaf4ef;
  color: #307966;
}
.studio .compare-table {
  border: 1px solid var(--line);
  border-radius: 12px;
  overflow: hidden;
  background: #fff;
}
.studio .compare-table th {
  font:
    800 8px Manrope,
    sans-serif;
  letter-spacing: 0.13em;
  background: #edf3f6;
  color: #708c9d;
  padding: 17px 24px;
}
.studio .compare-table td {
  padding: 23px 24px;
  font-size: 11px;
  line-height: 1.8;
  border-color: #e8eef2;
  color: #607d91;
}
.studio .compare-table td:first-child {
  font:
    500 20px Lora,
    serif;
  color: #2a4d67;
}
.studio .quiz-card {
  border: 1px solid #d6e2e9;
  background: linear-gradient(125deg, #fff, #f2f6f8);
  border-radius: 14px;
  padding: 35px;
  max-width: none;
}
.studio .quiz-progress {
  font-size: 8px;
  font-weight: 800;
  letter-spacing: 0.16em;
  color: #6b91aa;
}
.studio .quiz-card h3 {
  font:
    500 28px/1.4 Lora,
    serif;
  color: #22435b;
  max-width: 700px;
  margin: 25px 0;
}
.studio .quiz-options {
  gap: 10px;
}
.studio .quiz-options button {
  padding: 18px 20px;
  border: 1px solid #dbe6ec;
  background: #ffffffd9;
  border-radius: 8px;
  font-size: 12px;
  color: #55768a;
  transition:
    transform 0.2s,
    background 0.2s;
}
.studio .quiz-options button:hover:enabled {
  transform: translateX(3px);
  background: #eff5fa;
  border-color: #b0cada;
}
.studio .quiz-options button span {
  width: 28px;
  height: 28px;
  display: grid;
  place-items: center;
  font-size: 9px;
  background: #edf3f7;
  color: #537f9c;
  border-radius: 5px;
  margin-right: 15px;
}
.studio .quiz-options button.correct {
  border-color: #79b49e;
  background: #edf7f1;
  color: #28795a;
}
.studio .quiz-options button.wrong {
  border-color: #d4a99d;
  background: #fcf2ee;
  color: #9d5d4d;
}
.studio .quiz-score {
  font:
    500 70px Lora,
    serif;
  letter-spacing: -4px;
  color: #357d70;
  margin: 25px 0 0;
}
.studio .quiz-result p {
  font-size: 11px;
  color: #78919f;
}
.studio .course-footer {
  padding-top: 30px;
  border-top: 1px solid var(--line);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 30px;
  margin: 0;
}
.footer-source {
  max-width: 400px;
}
.footer-source p {
  font-size: 9px;
  line-height: 1.9;
  color: #8c9da8;
}
.footer-source a {
  color: #4f7d9b;
  text-decoration: none;
}
.next-chapter-card {
  background: #e6eef3;
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding: 25px;
  border-radius: 12px;
  text-decoration: none;
  color: #294d68;
  transition: background 0.25s;
}
.next-chapter-card:hover {
  background: #dce9f1;
}
.next-chapter-card strong {
  font:
    500 22px/1.4 Lora,
    serif;
}
.next-chapter-card > span:last-child {
  font-size: 10px;
  font-weight: 800;
  display: flex;
  align-items: center;
  gap: 30px;
}
.next-chapter-card svg {
  width: 16px;
  height: 16px;
}
.studio dialog {
  border: 1px solid #d3e1e9;
  border-radius: 15px;
  box-shadow: 0 30px 100px #102b4760;
  padding: 30px;
  max-width: 600px;
}
.studio dialog::backdrop {
  background: #0d2a41a0;
  backdrop-filter: blur(5px);
}
.studio dialog h2 {
  font-size: 28px;
}
.studio dialog > p {
  font-size: 11px;
  line-height: 1.8;
  color: #8399a8;
}
.studio .learning-row {
  padding: 20px 0;
}
.studio .learning-row strong {
  font-size: 12px;
}
.studio .learning-row span,
.studio .learning-row p {
  font-size: 10px;
}
.studio .toast {
  background: #173b54;
  color: #fff;
  font-size: 11px;
  border: 1px solid #46677d;
  border-radius: 8px;
  padding: 13px 20px;
  box-shadow: 0 8px 30px #173b5420;
  bottom: 25px;
}
.studio .timeline-range {
  height: 4px;
}
.studio .menu-button {
  color: #264d68;
  border-color: #b8cbd9;
}
.studio :focus-visible {
  outline: 2px solid #5698c9;
  outline-offset: 4px;
}
.studio [hidden] {
  display: none !important;
}
@keyframes hero-settle {
  from {
    transform: scale(1.06);
  }
  to {
    transform: scale(1.025);
  }
}
@keyframes stage-enter {
  from {
    opacity: 0;
    transform: translateY(9px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}
.studio .lesson .panel,
.studio .quiz-card {
  animation: stage-enter 0.6s cubic-bezier(0.2, 0.7, 0.2, 1) both;
}
/* Catalogue */
.studio .catalogue-main {
  max-width: 1240px;
  margin: auto;
  padding: 54px 40px;
}
.catalogue-eyebrow {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 26px;
}
.catalogue-eyebrow > span:last-child {
  font-size: 9px;
  color: #8ca0af;
}
.studio .catalogue-title {
  font:
    500 clamp(40px, 5vw, 62px) / 1.08 Lora,
    serif;
  letter-spacing: -2.4px;
  color: #17354b;
  max-width: 700px;
  margin: 0 0 20px;
}
.catalogue-description {
  font-size: 12px;
  line-height: 1.9;
  color: #7f929e;
  max-width: 560px;
  margin-bottom: 38px;
}
.course-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 26px;
}
.course-art-card {
  background: white;
  border: 1px solid #dae5ec;
  border-radius: 15px;
  overflow: hidden;
  box-shadow: 0 10px 35px #18375205;
  transition:
    transform 0.35s,
    box-shadow 0.35s;
  text-decoration: none;
  color: var(--ink);
  display: block;
}
.course-art-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 16px 35px #18375212;
}
.cover-art {
  height: 255px;
  position: relative;
  isolation: isolate;
  background: #2b536d;
  overflow: hidden;
}
.cover-art:before {
  content: "";
  position: absolute;
  inset: 0;
  background: url("assets/alpine.webp") center/cover;
  z-index: -2;
  transition: transform 0.8s cubic-bezier(0.2, 0.7, 0.2, 1);
}
.course-art-card:hover .cover-art:before {
  transform: scale(1.06);
}
.cover-art:after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(0deg, #0c2947a0, transparent 65%);
  z-index: -1;
}
.cover-art .cover-number {
  position: absolute;
  top: 21px;
  left: 24px;
  color: #fff;
  font-size: 9px;
  letter-spacing: 0.17em;
}
.cover-art .cover-tag {
  position: absolute;
  right: 20px;
  top: 18px;
  color: #e4eff9;
  background: #183e5770;
  border: 1px solid #ffffff30;
  border-radius: 4px;
  padding: 6px 9px;
  font-size: 8px;
  backdrop-filter: blur(6px);
}
.cover-art > strong {
  position: absolute;
  bottom: 20px;
  left: 24px;
  font:
    500 31px Lora,
    serif;
  letter-spacing: -0.8px;
  color: #fff;
}
.cover-law:before {
  filter: brightness(0.6) saturate(0.8);
  transform: scale(1.4);
  background-position: 70% 80%;
}
.cover-law svg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}
.cover-law svg path.route {
  fill: none;
  stroke: #e7f4f9;
  stroke-width: 1.4;
  stroke-dasharray: 5 6;
  opacity: 0.65;
}
.cover-law svg g {
  filter: drop-shadow(0 8px 4px #082547aa);
}
.course-card-copy {
  padding: 25px;
}
.course-card-copy .eyebrow {
  color: #6e90a5;
}
.course-card-copy h2 {
  font:
    500 26px Lora,
    serif;
  color: #1b3e56;
  margin: 14px 0;
}
.course-card-copy p {
  font-size: 11px;
  color: #7d95a4;
  line-height: 1.8;
  max-width: 430px;
  min-height: 40px;
}
.course-card-details {
  display: flex;
  gap: 18px;
  font-size: 9px;
  color: #6b8c9f;
  padding: 18px 0 22px;
  border-bottom: 1px solid #edf1f5;
}
.course-card-open {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 10px;
  font-weight: 800;
  color: #316795;
  padding-top: 20px;
}
.course-card-open > svg {
  width: 16px;
  height: 16px;
}
.catalogue-note {
  display: flex;
  justify-content: space-between;
  gap: 30px;
  padding: 30px 0;
  color: #8a9da9;
  font-size: 9px;
  line-height: 1.8;
}
.catalogue-note p {
  max-width: 480px;
  margin: 0;
}
.catalogue-note a {
  color: #537c99;
  text-decoration: none;
  white-space: nowrap;
}
@media (min-width: 1600px) {
  .studio #main {
    max-width: 1690px;
  }
  .chapter-hero {
    min-height: 480px;
  }
  .hero-copy {
    padding: 55px;
  }
  .art-scene {
    height: 530px;
  }
  .scene-step-card .art-scene {
    height: 510px;
  }
}
@media (max-width: 1150px) {
  .studio .sidebar {
    width: 220px;
    padding: 20px 17px;
  }
  .studio #main {
    margin-left: 220px;
    padding: 24px;
  }
  .hero-copy {
    padding: 33px;
  }
  .hero-meta {
    gap: 10px;
    font-size: 7px;
  }
  .hero-meta span + span:before {
    margin-right: 10px;
  }
  .hero-caption {
    font-size: 7px;
    right: 20px;
  }
  .hero-caption span {
    display: none;
  }
  .studio .chapter-hero h1 {
    font-size: 37px;
  }
  .pressure-explain,
  .scene-explanation,
  .traffic-panel {
    padding: 22px;
  }
  .pressure-explain h3,
  .scene-explanation h3,
  .traffic-panel h3 {
    font-size: 23px;
  }
  .studio .summary-items {
    gap: 14px;
  }
  .takeaway {
    gap: 8px;
  }
  .takeaway > span {
    font-size: 20px;
  }
  .studio .brand > span {
    font-size: 14px;
  }
  .studio .topbar nav {
    gap: 20px;
  }
  .scene-toolbar > span {
    font-size: 7px;
  }
  .scene-toolbar button {
    font-size: 7px;
    padding: 6px;
  }
  .scene-annotation {
    display: none;
  }
  .instrument-controls {
    padding: 21px;
  }
  .studio .readout strong {
    font-size: 18px;
  }
  .studio .field output {
    font-size: 10px;
  }
  .studio .controls {
    flex-wrap: wrap;
  }
  .stage {
    min-height: 390px;
  }
}
@media (max-width: 900px) {
  .studio .sidebar {
    width: 265px;
    left: -280px;
    top: 66px;
    transition: left 0.3s cubic-bezier(0.2, 0.7, 0.2, 1);
    z-index: 75;
  }
  .studio .sidebar.open {
    left: 0;
  }
  .studio .scrim {
    position: fixed;
    inset: 66px 0 0;
    background: #102a4670;
    z-index: 70;
    backdrop-filter: blur(3px);
    border: 0;
  }
  .studio .topbar {
    height: 66px;
    padding: 0 22px;
  }
  .studio .topbar nav {
    display: none;
  }
  .studio .menu-button {
    display: block;
    margin-left: auto;
    background: transparent;
    border: 1px solid #d3dfe7;
    font-size: 18px;
    border-radius: 5px;
    min-width: 32px;
    height: 32px;
    min-height: 32px;
  }
  .studio #main {
    margin: 0;
    padding: 22px;
  }
  .studio .chapter-hero {
    min-height: 420px;
  }
  .studio .chapter-hero h1 {
    font-size: 43px;
  }
  .studio .side-bottom .mobile-learning {
    display: block;
  }
  .studio .hero-copy {
    padding: 35px;
  }
  .studio .summary-heading h2 {
    font-size: 21px;
  }
  .hero-caption {
    font-size: 7px;
  }
  .studio .catalogue-main {
    padding: 35px 24px;
  }
  .cover-art {
    height: 220px;
  }
}
@media (max-width: 620px) {
  html {
    scroll-padding-top: 85px;
  }
  .studio .topbar {
    padding: 0 17px;
  }
  .studio .brand > span {
    font-size: 12px;
    gap: 11px;
  }
  .studio .brand img {
    width: 24px;
    height: 24px;
  }
  .studio .brand small {
    font-size: 9px;
  }
  .brand-divider {
    height: 16px;
  }
  .studio #main {
    padding: 16px;
  }
  .chapter-hero {
    border-radius: 12px;
    margin-bottom: 22px;
    min-height: 420px;
  }
  .studio .hero-copy {
    padding: 29px 24px;
    align-self: flex-start;
    margin-top: 10px;
  }
  .studio .chapter-hero h1 {
    font-size: 34px;
    letter-spacing: -1.3px;
    margin: 25px 0 20px;
  }
  .hero-eyebrow {
    font-size: 7px;
    gap: 8px;
  }
  .hero-eyebrow > span:last-child {
    margin-left: 6px;
    padding-left: 12px;
  }
  .hero-copy > p {
    font-size: 10px;
    max-width: 260px;
    line-height: 1.9;
  }
  .hero-meta {
    font-size: 7px;
    gap: 9px;
    flex-wrap: wrap;
    line-height: 1.8;
  }
  .hero-meta span + span:before {
    margin-right: 9px;
  }
  .hero-caption {
    display: none;
  }
  .hero-landscape {
    background-position: 65% center;
  }
  .chapter-hero:after {
    background:
      linear-gradient(90deg, #0b253bce, #0c2a4580),
      linear-gradient(0deg, #0b253b90, transparent);
  }
  .studio .studio-summary {
    padding: 22px;
    margin-bottom: 27px;
  }
  .summary-heading {
    display: block;
    padding-bottom: 15px;
    margin-bottom: 18px;
  }
  .studio .summary-heading h2 {
    font-size: 22px;
    line-height: 1.3;
    max-width: 230px;
    margin-top: 11px;
  }
  .studio .summary-items {
    display: grid;
    grid-template-columns: 1fr;
    gap: 18px;
  }
  .takeaway {
    border-right: 0;
    padding-right: 0;
    gap: 15px;
  }
  .takeaway p {
    font-size: 10px;
    margin-top: 3px;
  }
  .takeaway strong {
    font-size: 10px;
  }
  .takeaway > span {
    font-size: 23px;
  }
  .lessons-intro {
    display: block;
    margin-bottom: 25px;
    padding-bottom: 17px;
  }
  .lessons-intro p {
    font-size: 13px;
    margin-top: 8px;
  }
  .lesson-heading {
    grid-template-columns: 34px 1fr;
    gap: 10px;
  }
  .lesson-index {
    font-size: 25px;
  }
  .studio .lesson h2 {
    font-size: 25px;
    line-height: 1.25;
    margin: 8px 0 10px;
    letter-spacing: -0.8px;
  }
  .studio .lesson-intro {
    font-size: 10px;
    line-height: 1.8;
  }
  .studio .lesson {
    scroll-margin-top: 88px;
    margin-bottom: 38px;
  }
  .pressure-layout,
  .studio .pressure-layout,
  .studio .lab-grid,
  .dial-lab,
  .scene-step-card,
  .traffic-layout {
    display: grid;
    grid-template-columns: 1fr;
  }
  .pressure-stage {
    height: 330px;
    min-height: 330px;
  }
  .pressure-explain {
    padding: 24px;
  }
  .pressure-explain h3 {
    margin-top: 20px;
    font-size: 26px;
  }
  .pressure-mini {
    margin-top: 15px;
    padding-top: 15px;
  }
  .pressure-explain .controls {
    margin-top: 0;
    padding-top: 22px;
  }
  .studio .controls {
    flex-wrap: nowrap;
    gap: 6px;
  }
  .studio .controls button {
    font-size: 9px;
    padding: 9px 11px;
    white-space: nowrap;
  }
  .studio .stage-head {
    left: 15px;
    right: 15px;
    font-size: 7px;
  }
  .stage-readout {
    left: 18px;
    top: 60px;
  }
  .stage-readout > strong {
    font-size: 28px;
  }
  .studio .lesson-foot {
    align-items: center;
  }
  .lesson-reminder {
    font-size: 6px;
    letter-spacing: 0.1em;
  }
  .lesson-reminder > span {
    display: none;
  }
  .studio .complete-button {
    font-size: 8px;
    white-space: nowrap;
    padding: 7px 10px;
  }
  .isa-scene {
    min-height: 310px;
    height: 310px;
    padding: 0;
  }
  .isa-scene svg {
    min-height: 310px;
  }
  .studio .lab-controls {
    padding: 24px;
  }
  .studio .readout strong {
    font-size: 23px;
  }
  .studio .field {
    margin: 24px 0;
  }
  .studio .field label {
    font-size: 11px;
  }
  .studio .field output {
    font-size: 11px;
  }
  .instrument-stage {
    min-height: 420px;
    padding: 45px 20px 25px;
  }
  .instrument-stage > svg {
    width: 280px;
  }
  .instrument-controls {
    padding: 22px;
  }
  .instrument-strip {
    margin-top: 14px;
  }
  .instrument-strip strong {
    font-size: 21px;
  }
  .scene-step-card .art-scene {
    height: 365px;
  }
  .scene-explanation {
    padding: 24px;
  }
  .scene-explanation h3 {
    font-size: 27px;
    margin-top: 21px;
  }
  .scene-explanation p {
    font-size: 11px;
  }
  .scene-explanation .controls {
    padding-top: 20px;
  }
  .scene-toolbar {
    left: 12px;
    right: 12px;
    top: 12px;
  }
  .scene-toolbar > span {
    font-size: 6px;
    letter-spacing: 0.08em;
  }
  .scene-toolbar button {
    font-size: 7px;
    padding: 7px 8px;
  }
  .scene-label {
    font-size: 7px;
    padding: 6px 8px;
  }
  .scene-instruction {
    font-size: 7px;
    bottom: 12px;
    left: 12px;
  }
  .scene-caption-row {
    font-size: 8px;
    padding: 13px;
    gap: 20px;
    line-height: 1.8;
  }
  .traffic-layout .art-scene {
    height: 350px;
  }
  .traffic-panel {
    padding: 24px;
  }
  .traffic-panel h3 {
    font-size: 27px;
    margin-top: 20px;
  }
  .traffic-panel p {
    min-height: 0;
    font-size: 11px;
  }
  .traffic-panel .controls {
    margin-top: 18px;
  }
  .traffic-switcher {
    display: block;
  }
  .traffic-switcher > .eyebrow {
    display: none;
  }
  .traffic-switcher .chips {
    display: flex;
    gap: 6px;
  }
  .traffic-switcher .chip {
    font-size: 9px;
    flex: 1;
    padding: 9px 6px;
  }
  .studio .smallnote {
    font-size: 8px;
    line-height: 1.8;
  }
  .studio .flip-grid {
    grid-template-columns: 1fr;
    gap: 10px;
  }
  .studio .flip {
    min-height: 180px;
    padding: 24px;
  }
  .studio .flip > b {
    font-size: 32px;
  }
  .studio .flip > span {
    font-size: 11px;
    margin-top: 14px;
    max-width: 250px;
  }
  .studio .sort-card {
    padding: 23px;
  }
  .studio .sort-card > p {
    font-size: 23px;
  }
  .studio .decision-layout {
    grid-template-columns: 1fr;
  }
  .studio .decision-map {
    padding: 24px;
    min-height: 280px;
    gap: 23px;
  }
  .studio .decision-node:after {
    height: 23px;
  }
  .studio .decision-question {
    padding: 25px;
  }
  .studio .exceptions-grid {
    grid-template-columns: 1fr;
    gap: 15px;
  }
  .studio .cases-card {
    padding: 24px;
  }
  .studio .case-options {
    display: grid;
    grid-template-columns: 1fr;
    gap: 8px;
  }
  .studio .case-options button {
    font-size: 11px;
  }
  .studio .compare-table th,
  .studio .compare-table td {
    padding: 13px 10px;
    font-size: 9px;
  }
  .studio .compare-table td:first-child {
    font-size: 16px;
  }
  .studio .compare-table th {
    font-size: 6px;
  }
  .studio .quiz-card {
    padding: 24px;
  }
  .studio .quiz-card h3 {
    font-size: 25px;
  }
  .studio .quiz-options button {
    font-size: 11px;
    padding: 15px 12px;
  }
  .studio .quiz-options button span {
    flex-shrink: 0;
  }
  .studio .quiz-score {
    font-size: 65px;
  }
  .studio .course-footer {
    grid-template-columns: 1fr;
    gap: 25px;
  }
  .next-chapter-card {
    padding: 22px;
  }
  .studio .catalogue-main {
    padding: 32px 18px;
  }
  .studio .catalogue-title {
    font-size: 40px;
    letter-spacing: -1.7px;
  }
  .catalogue-eyebrow {
    margin-bottom: 22px;
  }
  .catalogue-eyebrow > span:last-child {
    font-size: 7px;
  }
  .catalogue-description {
    font-size: 11px;
    margin-bottom: 28px;
  }
  .course-grid {
    grid-template-columns: 1fr;
    gap: 22px;
  }
  .cover-art {
    height: 230px;
  }
  .course-card-copy {
    padding: 23px;
  }
  .course-card-copy h2 {
    font-size: 27px;
  }
  .course-card-details {
    font-size: 8px;
    gap: 12px;
  }
  .catalogue-note {
    display: block;
    font-size: 8px;
    padding-top: 24px;
  }
  .catalogue-note a {
    display: block;
    margin-top: 20px;
  }
  .studio dialog {
    padding: 23px;
    width: calc(100% - 30px);
  }
  .studio .learning-row {
    gap: 12px;
  }
  .studio .learning-row .secondary {
    font-size: 8px;
    padding: 8px;
  }
  .studio .toast {
    font-size: 10px;
    max-width: calc(100vw - 30px);
    width: max-content;
  }
}
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  .studio *,
  .studio *:before,
  .studio *:after {
    animation: none !important;
    transition: none !important;
  }
  .hero-landscape {
    transform: none;
  }
}
.instrument-face {
  width: min(100%, 350px);
  position: relative;
}
.instrument-face > svg {
  width: 100%;
  height: auto;
  filter: drop-shadow(0 14px 18px #07182999);
}
.scene-fallback-note {
  position: absolute;
  inset: 25%;
  font-size: 12px;
  line-height: 1.8;
  color: #52758d;
}
.scene-fallback-note strong {
  font:
    500 25px Lora,
    serif;
}
.studio .isa-plot {
  width: 100%;
  height: 100%;
}
.studio .pressure-point-halo {
  transition: r 0.4s;
}
.studio .instrument-controls .field {
  margin: 17px 0;
}
.studio .instrument-controls .field label {
  margin-bottom: 9px;
}
@media (max-width: 620px) {
  .instrument-face {
    width: 275px;
  }
  .studio .instrument-controls .field {
    margin: 23px 0;
  }
}
/* Reading scale: explanations stay readable at laptop and mobile widths. */
.studio .topbar nav > a,
.studio .topbar nav > button {
  font-size: 12px;
}
.studio .sidebar-home {
  font-size: 12px;
}
.studio #contents a {
  font-size: 12px;
  min-height: 46px;
}
.studio #contents a:first-child {
  font-size: 11px;
}
.studio .subjects button {
  font-size: 12px;
}
.studio .progress-label {
  font-size: 10px;
}
.studio .side-bottom p {
  font-size: 9px;
}
.studio .side-selection-link {
  font-size: 10px;
}
.studio .eyebrow {
  font-size: 9px;
}
.studio .hero-copy > p {
  font-size: 14px;
  max-width: 400px;
}
.studio .hero-start {
  font-size: 12px;
}
.studio .hero-meta {
  font-size: 9px;
}
.studio .takeaway strong,
.studio .takeaway p {
  font-size: 12px;
}
.studio .lesson-intro {
  font-size: 13px;
}
.studio .pressure-explain > p,
.studio .scene-explanation > p,
.studio .traffic-panel > p,
.studio .step-text p {
  font-size: 13px;
  line-height: 1.85;
}
.studio .primary,
.studio .secondary,
.studio .chip {
  font-size: 11px;
}
.studio .pressure-stage {
  height: 480px;
}
.studio .pressure-explain {
  padding: 30px;
}
.studio .scene-step-card .art-scene {
  height: 490px;
}
.studio .traffic-layout .art-scene {
  height: 470px;
}
.studio .lab-title {
  font-size: 9px;
}
.studio .field label {
  font-size: 12px;
}
.studio .field output {
  font-size: 12px;
}
.studio .range-labels {
  font-size: 9px;
}
.studio .readout span {
  font-size: 10px;
}
.studio .result-note {
  font-size: 12px;
}
.studio .complete-button {
  font-size: 10px;
  min-height: 34px;
}
.studio .stage-head {
  font-size: 9px;
}
.studio .stage-foot {
  font-size: 8px;
}
.studio .scene-toolbar > span {
  font-size: 9px;
}
.studio .scene-toolbar button {
  font-size: 9px;
  padding: 8px 10px;
}
.studio .scene-label {
  font-size: 9px;
}
.studio .scene-instruction {
  font-size: 9px;
}
.studio .scene-takeaway {
  font-size: 12px;
}
.studio .scene-caption-row {
  font-size: 10px;
}
.studio .flip > span {
  font-size: 13px;
}
.studio .flip > small {
  font-size: 9px;
}
.studio .sort-card .smallnote {
  font-size: 9px;
}
.studio .smallnote,
.studio .mini-cue {
  font-size: 10px;
}
.studio .traffic-panel label {
  font-size: 10px;
}
.studio .traffic-legend {
  font-size: 10px;
}
.studio .scene-annotation {
  font-size: 8px;
}
.studio .quiz-progress {
  font-size: 10px;
}
.studio .quiz-options button {
  font-size: 13px;
}
.studio .quiz-result p {
  font-size: 13px;
}
.studio .feedback {
  font-size: 13px;
}
.studio .catalogue-description {
  font-size: 14px;
}
.studio .course-card-copy p {
  font-size: 13px;
}
.studio .course-card-details {
  font-size: 11px;
}
.studio .course-card-open {
  font-size: 12px;
}
.studio .catalogue-note {
  font-size: 11px;
}
.studio .catalogue-eyebrow > span:last-child {
  font-size: 11px;
}
.studio .cover-art .cover-tag {
  font-size: 10px;
}
.studio .cover-art .cover-number {
  font-size: 10px;
}
.studio .footer-source p {
  font-size: 11px;
}
.studio .next-chapter-card > span:last-child {
  font-size: 12px;
}
.studio .instrument-strip span {
  font-size: 8px;
}
.studio .instrument-stage {
  min-height: 580px;
}
.studio .decision-tree {
  background: #edf3f6;
  padding: 35px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 28px;
}
.studio .tree-node {
  background: #f9fbfc;
  border: 1px solid #d0dfe7;
  border-radius: 8px;
  font-size: 12px;
  padding: 17px 18px;
  box-shadow: 0 4px 10px #24466704;
  position: relative;
  display: flex;
  gap: 16px;
  align-items: center;
  color: #688396;
}
.studio .tree-node strong {
  font:
    500 22px Lora,
    serif;
  color: #9db3c0;
}
.studio .tree-node.active {
  background: white;
  border-color: #75a6c7;
  box-shadow: 0 0 0 3px #dbeaf3;
  color: #2b5673;
}
.studio .tree-node.passed {
  background: #e8f2ee;
  color: #4c7f72;
}
.studio .tree-node:after {
  content: "";
  position: absolute;
  height: 28px;
  width: 1px;
  background: #bed1dd;
  top: 100%;
  left: 28px;
}
.studio .tree-node:last-child:after {
  display: none;
}
.studio .decision-question p {
  font-size: 13px;
}
.studio .exception-grid {
  gap: 20px;
}
.studio .disclosure {
  border: 1px solid #dbe5eb;
  border-radius: 8px;
  margin-bottom: 9px;
  background: white;
  padding: 0 20px;
  overflow: hidden;
}
.studio .disclosure summary {
  font-size: 12px;
  padding: 17px 0;
  color: #456a83;
  font-weight: 700;
  cursor: pointer;
}
.studio .disclosure p {
  font-size: 12px;
  line-height: 1.85;
  color: #7a909f;
  padding: 0 0 17px;
  margin: 0;
}
.studio .disclosure[open] {
  background: #f6f9fa;
  border-color: #bfd3e0;
}
.studio .sector-diagram {
  padding: 22px;
  background: #edf3f6;
  border: 1px solid #d7e3eb;
  border-radius: 12px;
}
.studio .sector-note {
  font-size: 11px;
  line-height: 1.8;
  color: #79909f;
}
.studio .sector-svg text {
  font-family: Manrope, sans-serif;
  font-size: 12px;
}
.studio .case-card {
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 32px;
  background: #fff;
  box-shadow: 0 8px 25px #24496a05;
}
.studio .case-index {
  font-size: 9px;
  letter-spacing: 0.15em;
  color: #7797ab;
  font-weight: 800;
}
.studio .case-card h3 {
  font:
    500 29px Lora,
    serif;
  letter-spacing: -0.8px;
  color: #28516c;
}
.studio .case-card > p {
  font-size: 13px;
  line-height: 1.9;
  color: #78909f;
  max-width: 720px;
}
.studio .answer-options {
  display: grid;
  gap: 10px;
}
.studio .answer-option {
  font-size: 12px;
  padding: 16px 20px;
  border: 1px solid #d7e5eb;
  border-radius: 7px;
  background: #fbfdfe;
  color: #56788f;
  text-align: left;
}
.studio .answer-option.correct {
  background: #eaf4ef;
  border-color: #9ac6b2;
  color: #3b7a65;
}
.studio .answer-option.wrong {
  background: #fbf1ed;
  border-color: #d9b2a8;
  color: #a36854;
}
.studio .comparison-table {
  border: 1px solid #dce6ec;
  border-radius: 12px;
  border-collapse: separate;
  border-spacing: 0;
  overflow: hidden;
  box-shadow: 0 8px 25px #24496a05;
}
.studio .comparison-table th {
  font-size: 9px;
  letter-spacing: 0.12em;
  background: #edf3f6;
  padding: 18px 22px;
  color: #7d99ab;
  border-bottom: 1px solid #dce6ec;
}
.studio .comparison-table td {
  font-size: 12px;
  line-height: 1.85;
  padding: 24px 22px;
  border-bottom: 1px solid #e5edf2;
  background: white;
  color: #6c879a;
}
.studio .comparison-table td:first-child {
  font:
    500 21px Lora,
    serif;
  color: #386683;
}
.studio .comparison-table tr:last-child td {
  border-bottom: 0;
}
.studio .feedback.correct {
  background: #eaf4ef;
  color: #3b7b67;
  border-color: #b8d8c9;
}
.studio .feedback.wrong {
  background: #faf0eb;
  color: #a46b57;
}
.studio .sort-card > p {
  font-size: 25px;
}
.studio .flip {
  min-height: 230px;
}
.studio .flip > span {
  margin-bottom: 35px;
}
@media (max-width: 620px) {
  .studio #contents a {
    font-size: 12px;
  }
  .studio .hero-copy > p {
    font-size: 12px;
  }
  .studio .hero-meta {
    font-size: 8px;
    gap: 10px;
  }
  .studio .hero-start {
    font-size: 11px;
  }
  .studio .takeaway strong,
  .studio .takeaway p {
    font-size: 12px;
  }
  .studio .lesson-intro {
    font-size: 12px;
  }
  .studio .pressure-stage {
    height: 340px;
  }
  .studio .pressure-explain,
  .studio .scene-explanation,
  .studio .traffic-panel {
    padding: 24px;
  }
  .studio .primary,
  .studio .secondary,
  .studio .chip {
    font-size: 11px;
  }
  .studio .controls button {
    font-size: 10px;
  }
  .studio .pressure-explain > p,
  .studio .scene-explanation > p,
  .studio .traffic-panel > p {
    font-size: 13px;
  }
  .studio .scene-step-card .art-scene {
    height: 365px;
  }
  .studio .traffic-layout .art-scene {
    height: 350px;
  }
  .studio .scene-toolbar > span {
    font-size: 7px;
  }
  .studio .scene-toolbar button {
    font-size: 8px;
    padding: 7px;
  }
  .studio .scene-label {
    font-size: 8px;
  }
  .studio .scene-caption-row {
    font-size: 10px;
  }
  .studio .scene-annotation {
    display: none;
  }
  .studio .scene-instruction {
    font-size: 8px;
  }
  .studio .stage-head {
    font-size: 8px;
  }
  .studio .stage-foot {
    font-size: 7px;
  }
  .studio .instrument-stage {
    min-height: 430px;
  }
  .studio .readout span {
    font-size: 9px;
  }
  .studio .field label,
  .studio .field output {
    font-size: 12px;
  }
  .studio .complete-button {
    font-size: 10px;
  }
  .studio .smallnote,
  .studio .mini-cue {
    font-size: 10px;
  }
  .studio .lesson-reminder {
    font-size: 6px;
  }
  .studio .case-card {
    padding: 24px;
  }
  .studio .case-card h3 {
    font-size: 26px;
  }
  .studio .case-card > p {
    font-size: 13px;
  }
  .studio .answer-option {
    font-size: 12px;
  }
  .studio .comparison-table th {
    font-size: 7px;
    padding: 13px 9px;
  }
  .studio .comparison-table td {
    font-size: 10px;
    padding: 18px 9px;
  }
  .studio .comparison-table td:first-child {
    font-size: 17px;
  }
  .studio .decision-tree {
    padding: 23px;
    gap: 24px;
  }
  .studio .tree-node {
    font-size: 12px;
    padding: 15px;
  }
  .studio .tree-node:after {
    height: 24px;
  }
  .studio .exception-grid {
    grid-template-columns: 1fr;
  }
  .studio .disclosure summary {
    font-size: 12px;
  }
  .studio .sector-note {
    font-size: 11px;
  }
  .studio .quiz-options button {
    font-size: 12px;
  }
  .studio .sort-card > p {
    font-size: 23px;
  }
  .studio .catalogue-description {
    font-size: 13px;
  }
  .studio .course-card-copy p {
    font-size: 13px;
  }
  .studio .course-card-details {
    font-size: 10px;
    gap: 13px;
  }
  .studio .catalogue-eyebrow > span:last-child {
    font-size: 8px;
  }
  .studio .catalogue-note {
    font-size: 10px;
  }
  .studio .flip {
    min-height: 210px;
  }
}
html {
  scroll-padding-top: 0;
}
.studio .art-scene:not(:has(canvas)):not(.scene-fallback):after {
  content: "Preparing the scene…";
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-size: 12px;
  color: #7f9aab;
  letter-spacing: 0.02em;
}
.studio .art-scene canvas {
  animation: stage-enter 0.65s cubic-bezier(0.2, 0.7, 0.2, 1) both;
}
.studio .art-scene:not(.is-ready):not(.scene-fallback):after {
  content: "Preparing the scene…";
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-size: 12px;
  color: #7f9aab;
  letter-spacing: 0.02em;
}
.studio .art-scene.is-ready:after {
  display: none;
}
.studio .lab-grid {
  gap: 0;
}
.studio svg {
  font-family: Manrope, sans-serif;
}
.studio .instrument-fields {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0 20px;
  margin: 0 0 12px;
}
.studio .instrument-fields .field {
  margin: 8px 0 13px;
}
.studio .instrument-fields label {
  display: block;
  font-size: 10px;
  line-height: 1.7;
  margin-bottom: 5px;
}
.studio .instrument-fields output {
  display: block;
  font-size: 12px;
  margin-top: 3px;
}
.studio .instrument-fields input[type="range"] {
  min-height: 24px;
  height: 24px;
  margin: 0;
  padding: 0;
}
.studio .instrument-fields .range-labels {
  font-size: 8px;
}
.studio .instrument-controls .lab-title {
  margin-bottom: 10px;
}
.studio .instrument-controls .chips {
  margin-bottom: 5px;
}
.studio .altitude-relation {
  height: 90px;
  margin: 16px 0 10px;
}
.studio .instrument-stage {
  min-height: 600px;
  justify-content: flex-start;
  padding-top: 85px;
}
.studio .instrument-strip {
  margin-top: 30px;
}
.studio .instrument-controls .mini-cue {
  font-size: 9px;
  line-height: 1.8;
}
.studio .instrument-controls .set-qnh {
  font-size: 10px;
}
.studio .instrument-face text {
  font-family: Manrope, sans-serif;
}
.studio .plot-tick {
  font-size: 11px;
}
.studio .plot-label {
  font-size: 10px;
}
@media (max-width: 620px) {
  .studio .instrument-stage {
    min-height: 420px;
    justify-content: center;
    padding-top: 45px;
  }
  .studio .instrument-strip {
    margin-top: 18px;
    gap: 25px;
  }
  .studio .instrument-fields {
    grid-template-columns: 1fr;
    gap: 0;
  }
  .studio .instrument-fields label {
    display: flex;
    font-size: 12px;
    align-items: center;
    line-height: 1.7;
    margin-bottom: 9px;
  }
  .studio .instrument-fields output {
    font-size: 12px;
    margin: 0;
  }
  .studio .instrument-fields input[type="range"] {
    height: 38px;
    min-height: 38px;
  }
  .studio .instrument-fields .field {
    margin: 13px 0;
  }
  .studio .instrument-fields .range-labels {
    font-size: 9px;
  }
  .studio .instrument-controls .mini-cue {
    font-size: 10px;
  }
  .studio .instrument-controls .set-qnh {
    font-size: 11px;
  }
  .studio .altitude-relation {
    height: 100px;
  }
}
.studio .plot-tick {
  font-size: 15px;
}
.studio .plot-label {
  font-size: 12px;
}
.studio .pressure-stage svg > text {
  font-size: 14px;
}
.studio .pressure-stage .pressure-grid text {
  font-size: 14px;
}
@media (max-width: 620px) {
  .studio .pressure-stage svg > text,
  .studio .pressure-stage .pressure-grid text {
    font-size: 12px;
  }
}
.studio .brand img {
  filter: none;
  border-radius: 6px;
}
.studio .case-study-layout {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
}
.studio .case-study-art {
  background: #edf4f7;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}
.studio .case-study-art svg {
  width: 100%;
  height: auto;
}
.studio .case-study-art .give-way-track {
  stroke: #5e95b8;
  stroke-dasharray: 4 5;
  stroke-width: 2;
}
.studio .case-study-layout .case-card {
  border: 0;
  border-radius: 0;
  box-shadow: none;
  padding: 28px;
}
.studio .case-study-layout .case-card h3 {
  margin-top: 16px;
  font-size: 27px;
}
.studio .case-study-layout .case-card > p {
  font-size: 12px;
}
.studio .case-study-layout .answer-option {
  font-size: 11px;
  padding: 13px 15px;
}
.studio .case-study-layout .feedback {
  font-size: 12px;
}
@media (max-width: 620px) {
  .studio .case-study-layout {
    grid-template-columns: 1fr;
  }
  .studio .case-study-art {
    max-height: 265px;
  }
  .studio .case-study-layout .case-card {
    padding: 24px;
  }
  .studio .case-study-layout .case-card > p {
    font-size: 13px;
  }
  .studio .case-study-layout .answer-option {
    font-size: 12px;
  }
}
.studio .sort-exercise {
  margin-top: 20px;
  border: 1px solid #dbe5eb;
  border-radius: 12px;
  background: #fff;
  padding: 27px;
}
.studio .sort-exercise .sort-prompt {
  font-size: 10px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  font-weight: 800;
  color: #8a9fad;
  margin: 0 0 15px;
}
.studio .sort-exercise .sort-item {
  font:
    500 25px/1.4 Lora,
    serif;
  letter-spacing: -0.7px;
  color: #284d67;
  max-width: 650px;
  padding: 0;
  margin-bottom: 23px;
}
.studio .sort-exercise .sort-options {
  margin: 0;
}
.studio .sort-exercise .sort-next {
  margin-top: 16px;
}
.studio .quiz-card .answer-options {
  gap: 10px;
}
.studio .quiz-card .answer-option {
  font-size: 13px;
  padding: 17px 19px;
  display: flex;
  align-items: center;
  gap: 15px;
  background: #fff;
}
.studio .quiz-card .answer-option b {
  display: grid;
  place-items: center;
  width: 28px;
  height: 28px;
  flex-shrink: 0;
  font-size: 10px;
  color: #6f91a8;
  background: #edf3f7;
  border: 1px solid #dce7ee;
  border-radius: 5px;
}
.studio .quiz-card .answer-option.correct {
  background: #edf6f1;
  color: #357b60;
  border-color: #a1c9b4;
}
.studio .quiz-card .answer-option.wrong {
  background: #fbf0eb;
  color: #a46954;
  border-color: #d9b3a6;
}
.studio .quiz-card .quiz-next {
  margin-top: 16px;
}
@media (max-width: 620px) {
  .studio .sort-exercise {
    padding: 23px;
  }
  .studio .sort-exercise .sort-item {
    font-size: 24px;
  }
  .studio .quiz-card .answer-option {
    font-size: 12px;
    padding: 15px 13px;
    gap: 12px;
  }
  .studio .comparison-table {
    display: block;
    min-width: 0;
    width: 100%;
  }
  .studio .comparison-table thead {
    position: absolute;
    clip: rect(0, 0, 0, 0);
    width: 1px;
    height: 1px;
    overflow: hidden;
  }
  .studio .comparison-table tbody {
    display: block;
  }
  .studio .comparison-table tr {
    display: grid;
    grid-template-columns: 1fr;
    padding: 21px 22px;
    border-bottom: 1px solid #dce6ec;
    background: #fff;
  }
  .studio .comparison-table tr:last-child {
    border-bottom: 0;
  }
  .studio .comparison-table td {
    display: block;
    border: 0;
    padding: 0;
    min-width: 0;
    font-size: 12px;
  }
  .studio .comparison-table td:first-child {
    font:
      500 24px Lora,
      serif;
    margin-bottom: 17px;
  }
  .studio .comparison-table td:nth-child(2) {
    margin-bottom: 17px;
  }
  .studio .comparison-table td:nth-child(2):before,
  .studio .comparison-table td:nth-child(3):before {
    content: "RECOGNISE IT";
    display: block;
    font-size: 8px;
    font-weight: 800;
    letter-spacing: 0.12em;
    color: #91a6b4;
    margin-bottom: 6px;
  }
  .studio .comparison-table td:nth-child(3):before {
    content: "RESPONSE";
  }
  .studio .comparison-table button {
    font-size: 12px;
  }
}
.studio .scene-play-control {
  display: none;
}
@media (max-width: 620px) {
  .studio .scene-play-control {
    display: block;
    position: absolute;
    z-index: 5;
    right: 14px;
    bottom: 13px;
    padding: 9px 15px;
    min-width: 68px;
    border: 1px solid #234d67;
    background: #244e68;
    color: #fff;
    border-radius: 5px;
    font:
      700 10px Manrope,
      sans-serif;
    box-shadow: 0 4px 12px #183e5620;
  }
  .studio .scene-play-control:hover {
    background: #173b54;
  }
  .studio .art-scene .scene-instruction {
    max-width: calc(100% - 115px);
    font-size: 8px;
    line-height: 1.6;
    bottom: 15px;
  }
}
.studio .lesson-heading > div {
  min-width: 0;
}
@media (max-width: 620px) {
  .studio .lesson-heading {
    grid-template-columns: 34px minmax(0, 1fr);
    row-gap: 0;
  }
  .studio .lesson-heading > div:last-child {
    display: contents;
  }
  .studio .lesson-index {
    grid-column: 1;
    grid-row: 1 / 3;
  }
  .studio .lesson-heading > .lesson-index + div > .eyebrow {
    grid-column: 2;
    grid-row: 1;
  }
  .studio .lesson-heading h2 {
    grid-column: 2;
    grid-row: 2;
  }
  .studio .lesson-heading .lesson-intro {
    grid-column: 1 / -1;
    grid-row: 3;
    width: 100%;
    font-size: 13px;
    line-height: 1.8;
    margin: 8px 0 0;
    text-indent: 0;
    text-align: left;
  }
}
/* Keep explanatory copy and data readable on the illustrated surfaces. */
.studio .lesson-intro,
.studio .pressure-explain > p,
.studio .scene-explanation > p,
.studio .traffic-panel > p,
.studio .takeaway p,
.studio .course-card-copy p,
.studio .catalogue-description,
.studio .case-study-layout .case-card > p {
  color: #5d7485;
}
.studio .pressure-stage:before {
  background-image:
    linear-gradient(0deg, #102c49c7, #244a6a99), url("assets/alpine.webp");
}
.studio .pressure-stage svg text {
  paint-order: stroke;
  stroke: #12334d55;
  stroke-width: 2px;
  stroke-linejoin: round;
}
.studio .comparison-table td {
  color: #58748a;
}
.studio .flip > span {
  color: #617b8d;
}