:root {
  --ink: #20170f;
  --muted: #675947;
  --paper: #ead7ad;
  --paper-light: #f6e8c9;
  --paper-dark: #b48b55;
  --sea: #1f7f8a;
  --sea-deep: #11535f;
  --wood: #6b4727;
  --wood-dark: #3a2416;
  --line: rgba(56, 38, 22, .34);
  --mastered: #c95651;
  --partial: #e5b15d;
  --unknown: #d7cab2;
  --focus: #1c6672;
  --panel-radius: 6px;
  color-scheme: light;
  font-family: Georgia, "Times New Roman", serif;
}

* {
  box-sizing: border-box;
}

html,
body {
  min-height: 100%;
  margin: 0;
}

body {
  color: var(--ink);
  background:
    radial-gradient(circle at 18% 26%, rgba(255, 255, 255, .2), transparent 22%),
    radial-gradient(circle at 78% 72%, rgba(255, 255, 255, .14), transparent 24%),
    linear-gradient(145deg, #2c98a0 0%, var(--sea) 38%, var(--sea-deep) 100%);
}

button,
input {
  font: inherit;
}

button {
  color: inherit;
}

button:disabled {
  cursor: not-allowed;
  filter: grayscale(.35);
  opacity: .58;
}

.text-button {
  text-decoration: none;
}

.app {
  min-height: 100vh;
  padding: 18px;
}

.topbar {
  display: grid;
  grid-template-columns: minmax(240px, 1fr) auto;
  gap: 16px;
  align-items: end;
  max-width: 1680px;
  margin: 0 auto 14px;
}

.brand {
  display: inline-flex;
  flex-direction: column;
  align-items: flex-start;
  width: 100%;
  height: 100%;
  padding: 18px 24px 16px;
  border: 2px solid #5f3e24;
  border-radius: var(--panel-radius);
  background:
    linear-gradient(90deg, rgba(120, 72, 34, .16), transparent 16%, transparent 84%, rgba(120, 72, 34, .16)),
    linear-gradient(#f3dfb8, #d9b87e);
  box-shadow: 0 14px 30px rgba(18, 47, 54, .26), inset 0 0 0 3px rgba(255, 246, 221, .36);
}

.brand h1 {
  margin: 0;
  font-size: clamp(2.1rem, 5vw, 4rem);
  line-height: .95;
  letter-spacing: 0;
  text-transform: uppercase;
}

.brand p {
  margin: 7px 0 0;
  font-size: clamp(.95rem, 2vw, 1.3rem);
  font-weight: 700;
  letter-spacing: 0;
  text-transform: uppercase;
}

.progress-board {
  min-width: min(420px, 100%);
  border: 2px solid #452a18;
  border-radius: var(--panel-radius);
  background:
    repeating-linear-gradient(90deg, rgba(255, 255, 255, .08) 0 2px, transparent 2px 28px),
    linear-gradient(180deg, #8e6136, var(--wood));
  box-shadow: 0 14px 28px rgba(15, 42, 50, .25), inset 0 0 0 3px rgba(48, 27, 13, .22);
  color: #fff2d1;
  padding: 14px;
}

.progress-board h2 {
  margin: 0 0 10px;
  font-size: 1.2rem;
  letter-spacing: 0;
  text-transform: uppercase;
}

.progress-meter {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 10px;
  align-items: center;
}

.meter {
  height: 12px;
  overflow: hidden;
  border: 1px solid rgba(44, 26, 13, .64);
  border-radius: 999px;
  background: rgba(255, 244, 213, .32);
}

.meter span {
  display: block;
  height: 100%;
  width: 0;
  background: linear-gradient(90deg, #f0c46c, #d95f56);
  transition: width .25s ease;
}

.shell {
  display: grid;
  grid-template-columns: minmax(520px, 1fr) minmax(360px, 450px);
  gap: 18px;
  max-width: 1680px;
  margin: 0 auto;
  align-items: start;
}

.map-panel,
.side-panel {
  border: 2px solid rgba(52, 34, 19, .8);
  border-radius: var(--panel-radius);
  box-shadow: 0 18px 38px rgba(14, 41, 48, .25);
}

.map-panel {
  min-height: 640px;
  overflow: hidden;
  background:
    linear-gradient(rgba(255, 248, 231, .72), rgba(235, 206, 151, .68)),
    radial-gradient(circle at center, rgba(234, 215, 173, .8), rgba(177, 137, 82, .72));
}

.map-toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
  justify-content: space-between;
  padding: 10px;
  border-bottom: 1px solid rgba(65, 43, 25, .32);
  background: rgba(246, 232, 201, .72);
}

.tool-group {
  display: inline-flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
}

.icon-button,
.text-button,
.status-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  color: var(--ink);
  min-height: 38px;
  border: 1px solid rgba(58, 36, 22, .48);
  border-radius: var(--panel-radius);
  background: linear-gradient(#f9edcf, #d8b979);
  box-shadow: inset 0 1px rgba(255, 255, 255, .45);
  cursor: pointer;
}

.icon-button {
  width: 42px;
  font-size: 1.25rem;
}

.text-button {
  padding: 0 12px;
  font-weight: 700;
}

.icon-button:hover,
.text-button:hover,
.status-button:hover,
.category-button:hover,
.question-tile:hover,
.question-row:hover {
  filter: brightness(1.03);
}

.icon-button:focus-visible,
.text-button:focus-visible,
.status-button:focus-visible,
.category-button:focus-visible,
.question-tile:focus-visible,
.question-row:focus-visible,
.region:focus-visible {
  outline: 3px solid rgba(20, 91, 104, .62);
  outline-offset: 2px;
}

.legend {
  display: inline-flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
  font-size: .92rem;
  color: #3d2a1a;
}

.legend-item {
  display: inline-flex;
  gap: 6px;
  align-items: center;
  white-space: nowrap;
}

.swatch {
  width: 18px;
  height: 18px;
  border: 1px solid rgba(54, 36, 22, .5);
  border-radius: 3px;
  background: var(--swatch, var(--unknown));
}

.swatch.partial {
  background:
    repeating-linear-gradient(135deg, rgba(191, 70, 64, .72) 0 3px, transparent 3px 9px),
    var(--partial);
}

.map-wrap {
  position: relative;
  min-height: 590px;
  background:
    radial-gradient(circle at 16% 30%, rgba(255, 255, 255, .22), transparent 11%),
    radial-gradient(circle at 82% 62%, rgba(255, 255, 255, .16), transparent 13%),
    linear-gradient(160deg, #2c98a0, #17616c);
}

.map {
  display: block;
  width: 100%;
  height: min(72vh, 760px);
  min-height: 590px;
}

.region {
  cursor: pointer;
}

.region .land {
  stroke: rgba(51, 32, 18, .78);
  stroke-width: 4;
  stroke-linejoin: round;
  filter: url(#zoneShadow);
  transition: opacity .2s ease, stroke-width .2s ease, filter .2s ease;
}

.region .hatch {
  pointer-events: none;
  fill: url(#partialHatch);
  opacity: .76;
  stroke: none;
}

.region.is-unknown .land {
  opacity: 0;
}

.region.is-selected .land {
  stroke-width: 8;
  filter: url(#selectedGlow);
  opacity: .96;
  fill: transparent;
}

.region-label {
  pointer-events: none;
  fill: #1d1710;
  font-family: Arial, Helvetica, sans-serif;
  font-size: 20px;
  font-weight: 800;
  letter-spacing: 0;
  text-anchor: middle;
  paint-order: stroke;
  stroke: rgba(255, 242, 211, .76);
  stroke-width: 5px;
  stroke-linejoin: round;
}

.region-range {
  font-size: 18px;
  font-weight: 900;
}

.coastline {
  fill: #bba978;
  stroke: #604629;
  stroke-width: 4;
  filter: url(#zoneShadow);
}

.terrain-line {
  fill: none;
  stroke: rgba(70, 54, 31, .28);
  stroke-width: 3;
  stroke-linecap: round;
}

.side-panel {
  overflow: hidden;
  background:
    linear-gradient(rgba(255, 248, 231, .78), rgba(255, 248, 231, .78)),
    linear-gradient(#edd6a9, #cfaa70);
}

.panel-header {
  display: grid;
  gap: 8px;
  padding: 16px;
  border-bottom: 1px solid rgba(62, 41, 24, .26);
  background: rgba(255, 246, 221, .5);
}

.panel-header h2 {
  margin: 0;
  font-size: clamp(1.35rem, 3vw, 1.8rem);
  line-height: 1.08;
  letter-spacing: 0;
}

.meta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
  color: var(--muted);
  font-family: Arial, Helvetica, sans-serif;
  font-size: .92rem;
}

.pill {
  display: inline-flex;
  gap: 6px;
  align-items: center;
  border: 1px solid rgba(58, 36, 22, .32);
  border-radius: 999px;
  padding: 4px 9px;
  background: rgba(255, 249, 234, .58);
  white-space: nowrap;
}

.status-dot {
  width: 10px;
  height: 10px;
  border-radius: 999px;
  background: var(--unknown);
  box-shadow: 0 0 0 1px rgba(50, 33, 19, .25);
}

.status-dot.mastered {
  background: var(--mastered);
}

.status-dot.partial {
  background: var(--partial);
}

.panel-body {
  display: grid;
  gap: 14px;
  padding: 14px;
}

.category-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 8px;
}

.category-button {
  display: grid;
  grid-template-columns: 18px 1fr auto;
  gap: 10px;
  align-items: center;
  width: 100%;
  min-height: 48px;
  border: 1px solid rgba(57, 37, 22, .28);
  border-radius: var(--panel-radius);
  padding: 8px 10px;
  background: rgba(255, 248, 230, .58);
  text-align: left;
  cursor: pointer;
}

.category-button.is-selected {
  border-color: rgba(28, 102, 114, .62);
  background: rgba(255, 247, 226, .9);
  box-shadow: inset 4px 0 0 var(--focus);
}

.category-name {
  font-family: Arial, Helvetica, sans-serif;
  font-weight: 800;
  line-height: 1.18;
}

.category-count {
  color: var(--muted);
  font-family: Arial, Helvetica, sans-serif;
  font-size: .86rem;
  white-space: nowrap;
}

.search {
  width: 100%;
  min-height: 42px;
  border: 1px solid rgba(57, 37, 22, .38);
  border-radius: var(--panel-radius);
  padding: 0 12px;
  background: rgba(255, 249, 234, .86);
  color: var(--ink);
  font-family: Arial, Helvetica, sans-serif;
}

.subzone-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(50px, 1fr));
  gap: 7px;
  max-height: 210px;
  overflow: auto;
  padding: 2px 2px 5px;
  scrollbar-color: rgba(81, 54, 29, .45) transparent;
}

.question-tile {
  position: relative;
  min-height: 42px;
  border: 1px solid rgba(56, 36, 20, .38);
  border-radius: 5px;
  background: var(--unknown);
  color: #24180e;
  font-family: Arial, Helvetica, sans-serif;
  font-weight: 800;
  cursor: pointer;
}

.question-tile.mastered {
  background: #d56a62;
}

.question-tile.partial {
  background:
    repeating-linear-gradient(135deg, rgba(185, 68, 62, .74) 0 4px, transparent 4px 10px),
    #e8bd6c;
}

.question-tile.is-active {
  border-color: #123f48;
  box-shadow: 0 0 0 3px rgba(28, 102, 114, .26);
}

.question-card {
  display: grid;
  gap: 11px;
  border: 1px solid rgba(58, 36, 22, .3);
  border-radius: var(--panel-radius);
  padding: 12px;
  background: rgba(255, 248, 230, .68);
}

.question-card-header {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 10px;
  align-items: start;
}

.question-card h3 {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  font-size: 1.05rem;
  line-height: 1.28;
  letter-spacing: 0;
}

.status-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.status-button {
  flex: 1 1 118px;
  min-width: 0;
  padding: 0 9px;
  font-family: Arial, Helvetica, sans-serif;
  font-weight: 800;
  white-space: nowrap;
}

.quiz-start-button {
  font-family: Arial, Helvetica, sans-serif;
  white-space: nowrap;
}

.quiz-launcher {
  position: relative;
  display: inline-flex;
  justify-content: flex-end;
  min-width: 0;
}

.quiz-launcher .quiz-start-button {
  min-width: 0;
  border-top-right-radius: 0;
  border-bottom-right-radius: 0;
}

.quiz-launcher .quiz-start-button:only-child {
  border-top-right-radius: var(--panel-radius);
  border-bottom-right-radius: var(--panel-radius);
}

.quiz-menu-button {
  width: 38px;
  padding: 0;
  border-left: 0;
  border-top-left-radius: 0;
  border-bottom-left-radius: 0;
  font-family: Arial, Helvetica, sans-serif;
  font-weight: 900;
}

.quiz-menu {
  position: absolute;
  top: calc(100% + 6px);
  right: 0;
  z-index: 5;
  display: grid;
  min-width: min(260px, 74vw);
  border: 1px solid rgba(58, 36, 22, .36);
  border-radius: var(--panel-radius);
  background: #fff7df;
  box-shadow: 0 12px 28px rgba(42, 28, 16, .22);
  overflow: hidden;
}

.quiz-menu[hidden] {
  display: none;
}

.quiz-menu-item {
  border: 0;
  border-bottom: 1px solid rgba(58, 36, 22, .18);
  padding: 10px 12px;
  background: transparent;
  color: var(--ink);
  font-family: Arial, Helvetica, sans-serif;
  font-weight: 800;
  line-height: 1.25;
  text-align: left;
  cursor: pointer;
}

.quiz-menu-item:last-child {
  border-bottom: 0;
}

.quiz-menu-item:hover,
.quiz-menu-item:focus-visible {
  background: rgba(216, 185, 121, .34);
}

.status-button[aria-pressed="true"] {
  border-color: rgba(28, 102, 114, .76);
  box-shadow: inset 0 -3px 0 rgba(28, 102, 114, .34);
  background: #fff7df;
}

.question-list {
  display: grid;
  gap: 7px;
  max-height: 330px;
  overflow: auto;
  padding-right: 4px;
  scrollbar-color: rgba(81, 54, 29, .45) transparent;
}

.question-row {
  display: grid;
  grid-template-columns: 44px 1fr;
  gap: 10px;
  align-items: start;
  width: 100%;
  border: 1px solid rgba(58, 36, 22, .24);
  border-radius: var(--panel-radius);
  padding: 9px;
  background: rgba(255, 249, 234, .62);
  cursor: pointer;
  text-align: left;
}

.question-row.is-active {
  border-color: rgba(28, 102, 114, .64);
  background: rgba(255, 247, 226, .95);
}

.question-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 32px;
  border-radius: 4px;
  background: rgba(60, 40, 24, .1);
  font-family: Arial, Helvetica, sans-serif;
  font-weight: 900;
}

.question-title {
  font-family: Arial, Helvetica, sans-serif;
  font-size: .96rem;
  line-height: 1.28;
}

.empty {
  border: 1px dashed rgba(58, 36, 22, .34);
  border-radius: var(--panel-radius);
  padding: 14px;
  color: var(--muted);
  background: rgba(255, 249, 234, .45);
  font-family: Arial, Helvetica, sans-serif;
}

.quiz-overlay {
  position: fixed;
  inset: 0;
  z-index: 20;
  display: grid;
  place-items: center;
  padding: 18px;
  background: rgba(21, 38, 42, .62);
}

.quiz-modal {
  display: grid;
  grid-template-rows: auto minmax(0, 1fr);
  width: min(900px, 100%);
  max-height: min(860px, calc(100vh - 36px));
  overflow: hidden;
  border: 2px solid rgba(52, 34, 19, .88);
  border-radius: var(--panel-radius);
  background:
    linear-gradient(rgba(255, 248, 231, .86), rgba(255, 248, 231, .86)),
    linear-gradient(#edd6a9, #cfaa70);
  box-shadow: 0 24px 64px rgba(8, 25, 30, .45);
}

.quiz-header {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 12px;
  align-items: center;
  padding: 14px;
  border-bottom: 1px solid rgba(62, 41, 24, .28);
  background: rgba(255, 246, 221, .62);
}

.quiz-header h2 {
  margin: 0;
  font-size: clamp(1.25rem, 3vw, 1.8rem);
  line-height: 1.1;
}

.quiz-body {
  overflow: auto;
  padding: 14px;
}

.quiz-question-screen,
.quiz-result-screen {
  display: grid;
  gap: 14px;
}

.quiz-question-screen h3,
.quiz-result-item h3 {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  font-size: 1.08rem;
  line-height: 1.35;
}

.quiz-meta,
.quiz-summary,
.quiz-controls {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
}

.quiz-controls {
  justify-content: flex-end;
}

.quiz-answer-list {
  display: grid;
  gap: 8px;
}

.quiz-answer {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 10px;
  align-items: start;
  border: 1px solid rgba(58, 36, 22, .28);
  border-radius: var(--panel-radius);
  padding: 10px;
  background: rgba(255, 249, 234, .64);
  font-family: Arial, Helvetica, sans-serif;
  line-height: 1.32;
  cursor: pointer;
}

.quiz-answer input {
  margin-top: 3px;
}

.quiz-result-list {
  display: grid;
  gap: 10px;
}

.quiz-result-item {
  display: grid;
  gap: 8px;
  border: 1px solid rgba(58, 36, 22, .28);
  border-radius: var(--panel-radius);
  padding: 12px;
  background: rgba(255, 249, 234, .64);
}

.quiz-result-item.is-correct {
  box-shadow: inset 4px 0 0 var(--mastered);
}

.quiz-result-item.is-wrong {
  box-shadow: inset 4px 0 0 var(--partial);
}

.quiz-result-line {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  line-height: 1.32;
}

.quiz-error {
  border-style: solid;
  border-color: rgba(201, 86, 81, .56);
}

.subject-selection-app {
  display: grid;
  align-content: start;
  gap: 16px;
}

.subject-topbar,
.subject-shell {
  width: min(1120px, 100%);
  margin: 0 auto;
}

.subject-brand {
  min-height: 150px;
  justify-content: center;
}

.subject-picker {
  border: 2px solid rgba(52, 34, 19, .8);
  border-radius: var(--panel-radius);
  background:
    linear-gradient(rgba(255, 248, 231, .78), rgba(255, 248, 231, .78)),
    linear-gradient(#edd6a9, #cfaa70);
  box-shadow: 0 18px 38px rgba(14, 41, 48, .25);
  padding: 14px;
}

.subject-picker-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 12px;
  padding-bottom: 12px;
  border-bottom: 1px solid rgba(62, 41, 24, .26);
}

.subject-picker-header h2 {
  margin: 0;
  font-size: clamp(1.35rem, 3vw, 1.8rem);
  line-height: 1.08;
  letter-spacing: 0;
}

.subject-picker-header span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 38px;
  min-height: 34px;
  border: 1px solid rgba(58, 36, 22, .32);
  border-radius: 999px;
  background: rgba(255, 249, 234, .66);
  font-family: Arial, Helvetica, sans-serif;
  font-weight: 900;
}

.subject-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 12px;
}

.subject-card {
  display: grid;
  gap: 14px;
  min-height: 154px;
  border: 1px solid rgba(57, 37, 22, .34);
  border-radius: var(--panel-radius);
  padding: 14px;
  color: var(--ink);
  background:
    linear-gradient(90deg, rgba(120, 72, 34, .1), transparent 20%, transparent 80%, rgba(120, 72, 34, .1)),
    rgba(255, 248, 230, .66);
  text-decoration: none;
  box-shadow: inset 0 1px rgba(255, 255, 255, .42);
}

.subject-card:hover {
  filter: brightness(1.03);
  border-color: rgba(28, 102, 114, .62);
}

.subject-card:focus-visible {
  outline: 3px solid rgba(20, 91, 104, .62);
  outline-offset: 2px;
}

.subject-card-main {
  display: grid;
  gap: 6px;
  align-content: start;
}

.subject-card-title {
  font-size: clamp(1.5rem, 4vw, 2.15rem);
  line-height: 1;
  font-weight: 900;
  text-transform: uppercase;
}

.subject-card-subtitle {
  color: var(--muted);
  font-family: Arial, Helvetica, sans-serif;
  font-size: 1rem;
  font-weight: 800;
  line-height: 1.2;
}

.subject-card-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
  align-items: end;
  align-self: end;
  font-family: Arial, Helvetica, sans-serif;
  font-size: .9rem;
  font-weight: 800;
}

.subject-card-meta span {
  border: 1px solid rgba(58, 36, 22, .26);
  border-radius: 999px;
  padding: 4px 8px;
  background: rgba(255, 249, 234, .6);
}

@media (max-width: 1120px) {

  .topbar,
  .shell {
    grid-template-columns: 1fr;
  }

  .progress-board {
    min-width: 0;
  }

  .map-panel {
    min-height: auto;
  }
}

@media (max-width: 680px) {
  .app {
    padding: 10px;
  }

  .brand {
    padding: 14px;
  }

  .map-toolbar,
  .tool-group {
    align-items: stretch;
  }

  .legend {
    display: grid;
    width: 100%;
  }

  .map {
    height: 66vh;
    min-height: 430px;
  }

  .question-card-header {
    grid-template-columns: 1fr;
  }

  .quiz-launcher {
    width: 100%;
  }

  .quiz-launcher .quiz-start-button {
    flex: 1 1 auto;
    width: auto;
  }

  .quiz-launcher .quiz-start-button:only-child {
    width: 100%;
  }

  .subject-list {
    grid-template-columns: 1fr;
  }

  .quiz-controls {
    display: grid;
    grid-template-columns: 1fr;
  }
}