:root {
  color-scheme: light;
  --blue: #144a78;
  --blue-2: #0c3456;
  --accent: #b21f2d;
  --gold: #d5a021;
  --ink: #17212b;
  --muted: #5d6b78;
  --line: #cfd6de;
  --paper: #ffffff;
  --bg: #eef2f6;
  --soft: #f7f9fb;
  --good: #156f45;
  --bad: #a52a2a;
}

body.dark {
  color-scheme: dark;
  --blue: #8bb9e0;
  --blue-2: #061b2d;
  --accent: #ff6b79;
  --gold: #ffd36b;
  --ink: #eff6fb;
  --muted: #adc0cf;
  --line: #34475a;
  --paper: #101923;
  --bg: #07111b;
  --soft: #142231;
  --good: #6ee7ad;
  --bad: #ff9a9a;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  background: var(--bg);
  color: var(--ink);
}

.cap-header { box-shadow: 0 3px 14px rgba(7, 17, 27, .14); }
.top-strip { height: 10px; background: var(--accent); }
.masthead {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  background-color: var(--blue-2);
  background-image:
    linear-gradient(90deg, rgba(6,27,45,.98) 0%, rgba(6,27,45,.94) 42%, rgba(6,27,45,.68) 72%, rgba(6,27,45,.86) 100%),
    url("figures/figure-25-058.png");
  background-size: auto, cover;
  background-position: center, 54% 55%;
  color: white;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px clamp(16px, 4vw, 48px);
  border-bottom: 5px solid var(--gold);
}
.masthead::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background: repeating-linear-gradient(90deg, transparent 0 79px, rgba(255,255,255,.035) 79px 80px);
  pointer-events: none;
}
.brand { display: flex; align-items: center; gap: 14px; min-width: 0; }
.brand > div:last-child { min-width: 0; }
.seal {
  position: relative;
  width: 58px;
  height: 58px;
  border: 2px solid rgba(255,255,255,.92);
  display: grid;
  place-items: center;
  font-weight: 800;
  background: rgba(20,74,120,.86);
  box-shadow: inset 0 0 0 4px rgba(255,255,255,.13), 0 4px 14px rgba(0,0,0,.22);
}
.seal::after {
  content: "";
  position: absolute;
  left: 7px;
  right: 7px;
  bottom: 7px;
  height: 3px;
  background: var(--gold);
}
.brand p { margin: 0 0 4px; text-transform: uppercase; font-size: 12px; letter-spacing: 0; }
.brand h1 { margin: 0; font-size: 38px; }
.theme-button {
  min-height: 44px;
  border: 1px solid rgba(255,255,255,.45);
  background: rgba(255,255,255,.12);
  color: white;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  white-space: nowrap;
}
.theme-icon {
  width: 22px;
  font-size: 22px;
  line-height: 1;
  text-align: center;
}

.tabs {
  display: flex;
  overflow-x: auto;
  background: var(--paper);
  border-bottom: 1px solid var(--line);
  padding: 0 clamp(8px, 3vw, 36px);
}
.tab {
  border: 0;
  border-right: 1px solid var(--line);
  background: transparent;
  color: var(--blue);
  padding: 15px 18px;
  min-width: 88px;
  font-weight: 700;
}
.tab.active { background: var(--blue); color: white; box-shadow: inset 0 -4px 0 var(--gold); }

main { max-width: 1180px; margin: 0 auto; padding: 22px 14px 42px; }
.view { display: none; }
.view.active { display: block; }
.study-grid, .exam-layout { display: grid; grid-template-columns: 280px 1fr; gap: 18px; align-items: start; }
.status-panel, .question-card, .exam-control, .exam-area, .source-card, .topic-card, .review-card, .tutorial-stage {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 6px;
  box-shadow: 0 2px 7px rgba(0,0,0,.06);
}
.status-panel, .exam-control { padding: 18px; position: sticky; top: 8px; }
h2, h3 { color: var(--blue); margin-top: 0; }
p { line-height: 1.45; }
.question-card { padding: clamp(16px, 4vw, 28px); }
.meta { color: var(--muted); font-size: 14px; display: flex; flex-wrap: wrap; gap: 8px; }
.meta.lower { margin-top: 16px; }
.chip { border: 1px solid var(--line); padding: 4px 8px; border-radius: 999px; background: var(--soft); overflow-wrap: anywhere; }
.choices { display: grid; gap: 10px; margin: 18px 0; }
.choice {
  width: 100%;
  min-height: 48px;
  text-align: left;
  padding: 15px;
  border: 2px solid var(--line);
  background: var(--soft);
  color: var(--ink);
  border-radius: 6px;
  font-size: 16px;
}
.choice.selected { border-color: var(--blue); }
.choice.correct { border-color: var(--good); background: color-mix(in srgb, var(--good) 12%, var(--paper)); }
.choice.wrong { border-color: var(--bad); background: color-mix(in srgb, var(--bad) 10%, var(--paper)); }
button {
  cursor: pointer;
  border-radius: 4px;
  border: 0;
  background: var(--blue);
  color: white;
  padding: 12px 15px;
  font-weight: 700;
}
button:disabled { cursor: default; opacity: .48; }
button.secondary { background: transparent; color: var(--blue); border: 1px solid var(--blue); }
button.danger { background: var(--bad); }
.actions { display: flex; flex-wrap: wrap; gap: 10px; }
.explanation {
  margin-top: 18px;
  padding: 16px;
  background: var(--soft);
  border-left: 5px solid var(--gold);
}
.source { font-size: 14px; color: var(--muted); border-top: 1px solid var(--line); margin-top: 16px; padding-top: 12px; overflow-wrap: anywhere; }
.figure {
  border: 1px solid var(--line);
  background: linear-gradient(135deg, #dce8f4, #fff);
  min-height: 145px;
  display: grid;
  place-items: center;
  margin: 16px 0;
  padding: 18px;
  color: #17344f;
  font-weight: 700;
}
.figure p { margin: 10px 0 0; font-weight: 400; color: #273d50; }
.official-figure {
  position: relative;
  margin: 16px 0;
  background: var(--soft);
  border: 1px solid var(--line);
  padding: 10px;
  border-radius: 6px;
}
.figure-open { position: relative; display: block; width: 100%; padding: 0; background: transparent; overflow: hidden; }
.official-figure img {
  display: block;
  width: 100%;
  max-height: 72vh;
  object-fit: contain;
  background: white;
}
.map-answer-highlight {
  position: absolute;
  left: var(--map-x);
  top: var(--map-y);
  width: var(--map-w);
  height: var(--map-h);
  transform: translate(-50%, -50%) scale(.82);
  border: 4px solid #f3b51b;
  background: rgba(255, 214, 70, .18);
  box-shadow: 0 0 0 3px rgba(7, 17, 27, .62), 0 0 0 7px rgba(255,255,255,.86);
  opacity: 0;
  pointer-events: none;
  transition: opacity .18s ease, transform .18s ease;
  z-index: 2;
}
.map-answer-highlight.circle { border-radius: 50%; }
.map-answer-highlight.visible { opacity: 1; transform: translate(-50%, -50%) scale(1); }
.map-answer-highlight > span {
  position: absolute;
  left: 50%;
  bottom: calc(100% + 9px);
  transform: translateX(-50%);
  width: max-content;
  max-width: 190px;
  padding: 6px 8px;
  border: 1px solid rgba(255,255,255,.8);
  border-radius: 3px;
  background: rgba(7, 31, 52, .94);
  color: white;
  font-size: 12px;
  line-height: 1.2;
  text-align: center;
  white-space: normal;
}
.map-tap-drill { margin-top: 16px; }
.map-tap-prompt { margin: 0 0 10px; color: var(--blue); font-size: 18px; font-weight: 800; }
.map-tap-surface {
  position: relative;
  display: block;
  width: 100%;
  min-height: 140px;
  padding: 0;
  overflow: hidden;
  border: 3px solid var(--blue);
  border-radius: 5px;
  background: white;
  cursor: crosshair;
  touch-action: pan-y;
}
.map-tap-surface:hover { border-color: var(--gold); }
.map-tap-surface:focus-visible { outline: 4px solid color-mix(in srgb, var(--gold) 72%, white); outline-offset: 3px; }
.map-tap-surface:disabled { cursor: default; opacity: 1; }
.map-tap-surface img { display: block; width: 100%; height: auto; background: white; }
.map-user-marker {
  position: absolute;
  left: var(--tap-x);
  top: var(--tap-y);
  width: 24px;
  height: 24px;
  transform: translate(-50%, -50%);
  border: 3px solid white;
  border-radius: 50%;
  box-shadow: 0 0 0 3px currentColor, 0 2px 7px rgba(0,0,0,.55);
  color: var(--bad);
  background: currentColor;
  z-index: 3;
  pointer-events: none;
}
.map-user-marker.correct { color: var(--good); }
.map-user-marker.wrong::before,
.map-user-marker.wrong::after {
  content: "";
  position: absolute;
  left: 8px;
  top: 2px;
  width: 3px;
  height: 14px;
  background: white;
}
.map-user-marker.wrong::before { transform: rotate(45deg); }
.map-user-marker.wrong::after { transform: rotate(-45deg); }
.map-tap-caption, .map-tap-hint { margin: 8px 2px 0; color: var(--muted); font-size: 13px; }
.map-tap-hint { padding-left: 12px; border-left: 4px solid var(--gold); }
.map-tap-feedback { margin-top: 12px; padding: 14px 16px; border-left: 5px solid var(--good); background: var(--soft); }
.map-tap-feedback.wrong { border-left-color: var(--accent); }
.map-tap-feedback h3 { margin-bottom: 5px; font-size: 17px; }
.map-tap-feedback p { margin: 0; }
.image-modal {
  width: min(94vw, 1120px);
  max-width: none;
  max-height: 94vh;
  padding: 12px;
  border: 1px solid rgba(255,255,255,.4);
  border-radius: 6px;
  background: var(--paper);
  color: var(--ink);
  overflow: auto;
}
.image-modal::backdrop { background: rgba(4,12,20,.82); }
.image-modal img { display: block; width: 100%; max-height: 82vh; object-fit: contain; background: white; }
.image-modal p { margin: 10px 42px 0 4px; color: var(--muted); font-size: 14px; }
.image-modal-close {
  position: fixed;
  top: max(3vh, 14px);
  right: max(3vw, 14px);
  z-index: 2;
  width: 44px;
  height: 44px;
  padding: 0;
  display: grid;
  place-items: center;
  border: 1px solid rgba(255,255,255,.7);
  background: rgba(12,52,86,.78);
  color: white;
  font-size: 28px;
  line-height: 1;
  opacity: .62;
}
.image-modal-close:hover, .image-modal-close:focus-visible { opacity: 1; }
.confirm-modal {
  width: min(92vw, 470px);
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--paper);
  color: var(--ink);
}
.confirm-modal::backdrop { background: rgba(4,12,20,.72); }
.confirm-modal h2 { margin-bottom: 8px; }
.confirm-modal p { margin: 0; color: var(--muted); }
.confirm-actions { display: flex; justify-content: flex-end; gap: 10px; margin-top: 22px; }
.official-figure figcaption {
  margin-top: 8px;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.4;
}
.airspace-visual { grid-template-columns: repeat(4, minmax(110px, 1fr)); gap: 12px; align-items: center; }
.airspace-visual p, .chart-visual p, .weather-visual p, .flow-visual p, .night-visual p { grid-column: 1 / -1; }
.ring {
  aspect-ratio: 1;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: white;
  text-align: center;
  min-width: 96px;
}
.class-b { border: 7px solid #2367a5; }
.class-c { border: 7px solid #b13c90; }
.class-d { border: 4px dashed #2367a5; }
.class-e { border: 4px dashed #b13c90; }
.chart-sample {
  width: min(100%, 620px);
  min-height: 170px;
  background: #f6efe1;
  border: 1px solid #a89c83;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  align-items: center;
  padding: 16px;
}
.towered, .magenta, .obstacle, .flow-visual span, .night-visual span {
  background: white;
  border: 3px solid var(--blue);
  padding: 14px;
  text-align: center;
}
.magenta { border-color: #b13c90; }
.obstacle { border-color: #222; }
.weather-visual code {
  display: block;
  width: 100%;
  white-space: normal;
  background: white;
  color: #0c3456;
  border: 1px solid #9fb3c4;
  padding: 14px;
}
.flow-visual, .night-visual { grid-template-columns: repeat(3, 1fr); gap: 12px; }
.flow-visual span:after { content: " ->"; color: var(--accent); }
.flow-visual span:last-of-type:after { content: ""; }
.meter { height: 12px; background: var(--line); border-radius: 999px; overflow: hidden; }
.meter span { display: block; height: 100%; width: 0; background: var(--good); }
.section-head { margin: 4px 0 18px; }
.study-path {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 8px;
  margin: 0 0 18px;
}
.study-path > div {
  min-width: 0;
  display: grid;
  grid-template-columns: 32px minmax(0, 1fr);
  column-gap: 9px;
  row-gap: 2px;
  align-items: center;
  padding: 11px 12px;
  border: 1px solid var(--line);
  border-top: 4px solid var(--blue);
  border-radius: 5px;
  background: var(--paper);
}
.study-path > div:nth-child(2) { border-top-color: var(--gold); }
.study-path > div:nth-child(3) { border-top-color: var(--accent); }
.study-path > div:nth-child(4) { border-top-color: var(--good); }
.study-path span {
  grid-row: 1 / 3;
  width: 30px;
  height: 30px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: var(--blue);
  color: white;
  font-weight: 800;
}
.study-path strong { min-width: 0; color: var(--ink); font-size: 14px; line-height: 1.2; }
.study-path small { min-width: 0; color: var(--muted); line-height: 1.25; }
.topic-list, .source-list, .review-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 14px; }
.topic-card, .source-card, .review-card { padding: 16px; }
.topic-card button { margin-top: 8px; }
.topic-heading { display: flex; gap: 10px; align-items: flex-start; justify-content: space-between; }
.topic-heading h3 { margin-bottom: 6px; font-size: 17px; line-height: 1.25; }
.topic-card p { margin: 0; color: var(--muted); font-size: 14px; line-height: 1.35; }
.topic-count { flex: 0 0 auto; min-width: 28px; padding: 4px 7px; border: 1px solid var(--line); border-radius: 999px; color: var(--blue); text-align: center; font-size: 12px; font-weight: 800; }
.question-set-bar { display: flex; gap: 8px; overflow-x: auto; margin-bottom: 14px; padding-bottom: 2px; }
.set-filter { white-space: nowrap; background: var(--paper); color: var(--blue); border: 1px solid var(--line); }
.set-filter span { margin-left: 5px; color: var(--muted); }
.set-filter.active { background: var(--blue); color: white; border-color: var(--blue); }
.set-filter.active span { color: white; }
.question-total { text-align: right; color: var(--muted); font-size: 13px; }
details { border-top: 1px solid var(--line); margin-top: 14px; padding-top: 12px; }
summary { color: var(--blue); cursor: pointer; font-weight: 700; }
.glossary-head { display: flex; justify-content: space-between; gap: 24px; align-items: end; }
.glossary-head h2, .glossary-head p { margin-bottom: 0; }
.glossary-search { flex: 0 1 330px; margin: 0; color: var(--muted); font-size: 13px; font-weight: 700; }
.glossary-search span { display: block; margin-bottom: 6px; }
.glossary-search input {
  width: 100%;
  min-height: 44px;
  border: 1px solid var(--line);
  border-radius: 4px;
  background: var(--paper);
  color: var(--ink);
  padding: 10px 12px;
  font: inherit;
  font-size: 16px;
}
.glossary-list { margin: 0; border: 1px solid var(--line); border-radius: 6px; background: var(--paper); box-shadow: 0 2px 7px rgba(0,0,0,.06); }
.glossary-row { display: grid; grid-template-columns: 92px minmax(0, 1fr); gap: 14px; padding: 13px 16px; border-bottom: 1px solid var(--line); }
.glossary-row:last-child { border-bottom: 0; }
.glossary-row dt { color: var(--blue); font-weight: 800; overflow-wrap: anywhere; }
.glossary-row dd { margin: 0; min-width: 0; }
.glossary-row dd strong, .glossary-row dd span { display: block; }
.glossary-row dd span { margin-top: 4px; color: var(--muted); line-height: 1.4; }
.tutorial-layout { display: grid; grid-template-columns: 240px minmax(0, 1fr); gap: 16px; align-items: start; }
.tutorial-nav { display: grid; gap: 7px; position: sticky; top: 8px; }
.tutorial-tab { display: flex; align-items: center; gap: 9px; width: 100%; min-height: 50px; padding: 11px; text-align: left; background: var(--paper); color: var(--blue); border: 1px solid var(--line); }
.tutorial-tab span { display: grid; place-items: center; flex: 0 0 26px; height: 26px; border: 1px solid currentColor; border-radius: 50%; font-size: 12px; }
.tutorial-tab strong { min-width: 0; line-height: 1.2; overflow-wrap: anywhere; }
.tutorial-tab.active { background: var(--blue); color: white; border-color: var(--blue); }
.tutorial-stage { padding: clamp(16px, 4vw, 28px); min-height: 460px; }
.tutorial-progress { display: flex; justify-content: space-between; gap: 14px; align-items: center; margin-bottom: 18px; color: var(--muted); font-size: 13px; }
.tutorial-progress span { color: var(--accent); text-transform: uppercase; font-weight: 800; }
.tutorial-stage > h3 { font-size: 24px; }
.tutorial-points { padding-left: 20px; line-height: 1.55; }
.tutorial-question { font-size: 18px; font-weight: 700; }
.tutorial-actions { display: flex; justify-content: space-between; gap: 10px; margin-top: 22px; padding-top: 16px; border-top: 1px solid var(--line); }
.tutorial-actions button { min-height: 44px; }
.airspace-key { display: grid; gap: 9px; margin: 18px 0; }
.airspace-key > div { display: grid; grid-template-columns: 94px minmax(120px, .6fr) 1fr; gap: 12px; align-items: center; min-height: 44px; padding: 8px 10px; background: var(--soft); border: 1px solid var(--line); }
.airspace-key small { color: var(--muted); }
.line-sample { width: 76px; height: 18px; display: block; }
.solid-blue { border-top: 5px solid #1f5fa5; }
.solid-magenta { border-top: 5px solid #a32d87; }
.dashed-blue { border-top: 5px dashed #1f5fa5; }
.dashed-magenta { border-top: 5px dashed #a32d87; }
.faded-magenta { background: linear-gradient(to bottom, rgba(163,45,135,.65), rgba(163,45,135,.05)); border-top: 2px solid #a32d87; }
.faded-blue { background: linear-gradient(to bottom, rgba(31,95,165,.65), rgba(31,95,165,.05)); border-top: 2px solid #1f5fa5; }
.decode-strip { display: grid; grid-template-columns: repeat(auto-fit, minmax(118px, 1fr)); gap: 8px; margin: 18px 0; }
.decode-strip span { min-width: 0; padding: 12px 10px; border: 1px solid var(--line); border-top: 4px solid var(--blue); background: var(--soft); }
.decode-strip code { display: block; overflow-wrap: anywhere; color: var(--ink); font-weight: 800; }
.decode-strip small, .taf-timeline small { display: block; margin-top: 7px; color: var(--muted); line-height: 1.3; }
.taf-timeline { display: grid; grid-template-columns: repeat(4, minmax(120px, 1fr)); gap: 0; margin: 18px 0; overflow-x: auto; }
.taf-timeline div { position: relative; min-width: 135px; padding: 14px; border-top: 4px solid var(--blue); border-bottom: 1px solid var(--line); background: var(--soft); }
.taf-timeline div + div { border-left: 1px solid var(--line); }
.taf-timeline div:nth-child(3) { border-top-color: var(--gold); }
.taf-timeline div:nth-child(4) { border-top-color: var(--accent); }
.exam-area { padding: 18px; min-height: 220px; }
.exam-q { border-bottom: 1px solid var(--line); padding: 14px 0; }
.exam-q:last-child { border-bottom: 0; }
label { display: block; margin: 12px 0; }
footer { display: grid; gap: 6px; text-align: center; color: var(--muted); padding: 24px; font-size: 13px; }
.site-version { color: var(--blue); }
a { color: var(--blue); }

@media (min-width: 761px) and (max-width: 900px) {
  .brand h1 { font-size: 32px; }
  main { padding-inline: 12px; }
  .study-grid, .exam-layout { grid-template-columns: 240px minmax(0, 1fr); gap: 14px; }
  .tutorial-layout { grid-template-columns: 210px minmax(0, 1fr); gap: 14px; }
  .status-panel, .exam-control { padding: 16px; }
  .question-card, .tutorial-stage { padding: 22px; }
  .study-path { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 760px) {
  button { min-height: 44px; }
  .masthead { align-items: center; padding: 12px; }
  .brand { gap: 10px; }
  .brand p { font-size: 10px; }
  .brand h1 { font-size: 22px; }
  .seal { width: 46px; height: 46px; flex: 0 0 46px; }
  .theme-button { width: 44px; min-width: 44px; padding: 0; justify-content: center; }
  .theme-button span:last-child { display: none; }
  .masthead {
    background-image:
      linear-gradient(90deg, rgba(6,27,45,.98) 0%, rgba(6,27,45,.9) 65%, rgba(6,27,45,.74) 100%),
      url("figures/figure-25-058.png");
    background-position: center, 60% 52%;
  }
  .tabs { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); overflow: visible; padding: 0; }
  .tab { min-width: 0; min-height: 44px; padding: 11px 6px; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); }
  .tab:last-child { grid-column: span 2; }
  main { padding: 16px 12px 32px; }
  .study-grid, .exam-layout { grid-template-columns: 1fr; gap: 12px; }
  .status-panel, .exam-control { position: static; }
  .status-panel, .exam-control, .exam-area, .topic-card, .source-card, .review-card { padding: 14px; }
  .question-card, .tutorial-stage { padding: 18px 14px; }
  .question-card h2, .tutorial-stage > h3 { font-size: 21px; }
  .actions > button { flex: 1 1 130px; min-height: 44px; }
  .question-set-bar { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); overflow: visible; }
  .set-filter { min-width: 0; min-height: 44px; white-space: normal; padding-inline: 8px; }
  .glossary-head { display: grid; gap: 14px; align-items: start; }
  .glossary-search { width: 100%; }
  .glossary-row { grid-template-columns: 72px minmax(0, 1fr); gap: 10px; padding: 12px; }
  .airspace-visual, .flow-visual, .night-visual { grid-template-columns: 1fr 1fr; }
  .chart-sample { grid-template-columns: 1fr; }
  .tutorial-layout { grid-template-columns: 1fr; }
  .tutorial-nav { display: flex; position: static; overflow-x: auto; padding-bottom: 3px; }
  .tutorial-tab { flex: 0 0 174px; min-height: 64px; }
  .tutorial-stage { min-height: 0; }
  .study-path { grid-template-columns: 1fr 1fr; }
  .tutorial-progress { align-items: flex-start; }
  .airspace-key > div { grid-template-columns: 78px 1fr; }
  .airspace-key small { grid-column: 2; }
  .image-modal { width: calc(100vw - 20px); max-height: calc(100vh - 20px); padding: 8px; }
  .image-modal img { max-height: calc(100vh - 82px); }
  .confirm-modal { padding: 18px; }
  .confirm-actions { display: grid; grid-template-columns: 1fr; }
  footer { padding: 20px 12px; }
}

@media (max-width: 340px) {
  .brand p { font-size: 9px; }
  .brand h1 { font-size: 20px; }
  .seal { width: 42px; height: 42px; flex-basis: 42px; }
  .study-path { grid-template-columns: 1fr; }
}