:root {
  --bg: #f6f7f3;
  --surface: #ffffff;
  --surface-2: #eef3ed;
  --ink: #17201a;
  --muted: #647067;
  --line: #d9dfd7;
  --green: #1a6b43;
  --green-soft: #e5f2ea;
  --blue: #2e74b5;
  --blue-soft: #e8f1fb;
  --amber: #bb7a16;
  --amber-soft: #fff2d8;
  --red: #b4332b;
  --red-soft: #fae8e6;
  --shadow: 0 18px 48px rgba(23, 32, 26, 0.08);
  --radius: 8px;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--ink);
  background: var(--bg);
}

* {
  box-sizing: border-box;
}

html {
  min-width: 320px;
}

body {
  margin: 0;
  min-height: 100vh;
  background:
    linear-gradient(180deg, rgba(246, 247, 243, 0.96), rgba(246, 247, 243, 1)),
    url("assets/market-lines.png") top center / 1200px auto no-repeat;
}

button,
input {
  font: inherit;
}

button {
  cursor: pointer;
}

.hidden {
  display: none !important;
}

.app-shell {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.topbar {
  min-height: 76px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 18px 0;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
}

.brand-mark {
  width: 44px;
  height: 44px;
  border-radius: var(--radius);
  display: grid;
  place-items: center;
  background: var(--green);
  color: #fff;
  font-weight: 800;
}

.eyebrow {
  margin: 0 0 6px;
  color: var(--green);
  font-size: 0.78rem;
  font-weight: 800;
  text-transform: uppercase;
}

.brand-title {
  margin: 0;
  font-weight: 800;
}

.top-meta {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 8px;
  color: var(--muted);
  font-size: 0.92rem;
}

.top-meta span,
.question-meta span,
.status-item,
.setup-facts div,
.metric,
.map-head,
.setting-row {
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.78);
  border-radius: var(--radius);
}

.top-meta span {
  padding: 7px 10px;
}

main {
  flex: 1;
}

.view {
  padding: 30px 0 42px;
}

.setup-view {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(320px, 0.85fr);
  gap: 28px;
  align-items: stretch;
}

.setup-copy {
  position: relative;
  overflow: hidden;
  min-height: 500px;
  padding: 46px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.84);
  box-shadow: var(--shadow);
}

.market-visual {
  position: absolute;
  inset: auto 0 0;
  width: 100%;
  height: 210px;
  object-fit: cover;
  opacity: 0.78;
  pointer-events: none;
}

.setup-copy > *:not(.market-visual) {
  position: relative;
  z-index: 1;
}

h1,
h2,
h3,
p {
  overflow-wrap: anywhere;
}

h1 {
  max-width: 700px;
  margin: 0;
  font-size: 3rem;
  line-height: 1.04;
}

.lead {
  max-width: 700px;
  margin: 20px 0 0;
  color: var(--muted);
  font-size: 1.08rem;
  line-height: 1.65;
}

.setup-facts {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
  margin-top: 34px;
}

.setup-facts div {
  min-height: 96px;
  padding: 16px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.setup-facts strong {
  font-size: 1.85rem;
}

.setup-facts span,
.metric span,
.status-item span,
.setting-row span {
  color: var(--muted);
  font-size: 0.92rem;
}

.setup-panel,
.exam-paper,
.question-map,
.result-head,
.review-toolbar,
.submit-dialog form {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: var(--shadow);
}

.setup-panel {
  padding: 28px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 22px;
}

.field-group {
  margin: 0;
  padding: 0;
  border: 0;
  display: grid;
  gap: 10px;
}

.field-group label,
.field-group legend {
  color: var(--ink);
  font-weight: 800;
}

input[type="text"] {
  width: 100%;
  height: 48px;
  padding: 0 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
  color: var(--ink);
  outline: none;
}

input[type="text"]:focus {
  border-color: var(--green);
  box-shadow: 0 0 0 3px rgba(26, 107, 67, 0.14);
}

.segmented {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 8px;
}

.segmented.two {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.segmented label {
  min-height: 44px;
  display: grid;
}

.segmented input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.segmented span,
.filter-btn {
  min-height: 42px;
  padding: 9px 10px;
  display: grid;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
  color: var(--muted);
  font-weight: 800;
  text-align: center;
}

.segmented small {
  display: block;
  margin-top: 3px;
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 700;
}

.segmented input:checked + span,
.filter-btn.active {
  border-color: var(--green);
  background: var(--green-soft);
  color: var(--green);
}

.segmented input:checked + span small {
  color: var(--green);
}

.fixed-time {
  min-height: 58px;
  padding: 13px 14px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.78);
}

.fixed-time span {
  color: var(--green);
  font-weight: 850;
}

.setting-row {
  min-height: 72px;
  padding: 14px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.setting-row div {
  display: grid;
  gap: 4px;
}

.status-dot {
  flex: 0 0 auto;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 0 6px var(--green-soft);
}

.primary-btn,
.secondary-btn,
.danger-btn {
  min-height: 46px;
  padding: 10px 16px;
  border-radius: var(--radius);
  border: 1px solid transparent;
  font-weight: 850;
  text-align: center;
}

.primary-btn {
  background: var(--green);
  color: #fff;
}

.secondary-btn {
  background: #fff;
  color: var(--ink);
  border-color: var(--line);
}

.danger-btn {
  background: var(--red);
  color: #fff;
}

.primary-btn:disabled,
.secondary-btn:disabled,
.danger-btn:disabled {
  cursor: not-allowed;
  opacity: 0.58;
}

.exam-status,
.result-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 18px;
  margin-bottom: 14px;
}

.exam-status h2,
.result-head h2 {
  margin: 0;
  font-size: 1.6rem;
}

.status-cluster,
.result-actions {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  flex-wrap: wrap;
  gap: 10px;
}

.status-item {
  min-width: 110px;
  min-height: 52px;
  padding: 8px 12px;
  display: grid;
  gap: 2px;
}

.status-item strong {
  font-size: 1.1rem;
}

.progress-track {
  width: 100%;
  height: 10px;
  overflow: hidden;
  border-radius: 999px;
  background: #e6ebe3;
  margin-bottom: 18px;
}

.progress-bar {
  width: 0%;
  height: 100%;
  background: var(--green);
  transition: width 180ms ease;
}

.exam-layout {
  display: grid;
  grid-template-columns: 280px minmax(0, 1fr);
  gap: 18px;
  align-items: start;
}

.question-map {
  position: sticky;
  top: 14px;
  padding: 16px;
}

.map-head {
  min-height: 48px;
  padding: 10px 12px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 10px;
  margin-bottom: 14px;
}

.map-head span {
  color: var(--muted);
}

.map-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 8px;
}

.map-btn {
  width: 100%;
  aspect-ratio: 1;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
  color: var(--ink);
  font-weight: 850;
}

.map-btn.current {
  border-color: var(--blue);
  background: var(--blue-soft);
  color: var(--blue);
}

.map-btn.answered {
  border-color: var(--green);
  background: var(--green-soft);
  color: var(--green);
}

.map-btn.flagged::after {
  content: "";
  display: block;
  width: 6px;
  height: 6px;
  margin: 3px auto 0;
  border-radius: 50%;
  background: var(--amber);
}

.exam-paper {
  min-height: 520px;
  padding: 28px;
}

.question-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 18px;
}

.question-meta span {
  min-height: 34px;
  padding: 7px 10px;
  color: var(--muted);
  font-size: 0.9rem;
}

#questionText {
  margin: 0 0 22px;
  font-size: 1.45rem;
  line-height: 1.45;
}

#questionText.has-focus {
  margin-bottom: 18px;
}

.question-prompt {
  display: block;
}

.question-focus {
  display: block;
  margin-top: 12px;
  padding: 16px 18px;
  border: 1px solid var(--line);
  border-left: 5px solid var(--green);
  border-radius: var(--radius);
  background: linear-gradient(180deg, #fbfdfb, var(--green-soft));
  color: #102116;
  font-size: 1.12rem;
  font-weight: 850;
  line-height: 1.5;
}

.question-focus.term {
  font-size: 1.32rem;
}

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

.answer-option {
  min-height: 60px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
  display: grid;
  grid-template-columns: 42px minmax(0, 1fr);
  gap: 12px;
  align-items: start;
  padding: 12px;
  text-align: left;
}

.answer-option:hover {
  border-color: var(--green);
}

.answer-option.selected {
  border-color: var(--green);
  background: var(--green-soft);
}

.answer-key {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: var(--surface-2);
  color: var(--ink);
  font-weight: 900;
}

.answer-text {
  line-height: 1.55;
  padding-top: 5px;
}

.paper-actions {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  margin-top: 24px;
}

.paper-actions button {
  min-width: 126px;
}

.result-head {
  padding: 20px;
}

.metrics-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 10px;
  margin: 16px 0;
}

.metric {
  min-height: 104px;
  padding: 16px;
  display: grid;
  align-content: center;
  gap: 6px;
}

.metric strong {
  font-size: 1.8rem;
}

.metric.good strong {
  color: var(--green);
}

.metric.warn strong {
  color: var(--amber);
}

.metric.bad strong {
  color: var(--red);
}

.review-toolbar {
  margin-top: 18px;
  padding: 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
}

.segmented.compact {
  display: flex;
  flex-wrap: wrap;
}

.filter-btn {
  min-width: 90px;
}

.review-list {
  display: grid;
  gap: 12px;
  margin-top: 14px;
}

.review-item {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  padding: 18px;
}

.review-item.correct {
  border-left: 5px solid var(--green);
}

.review-item.wrong {
  border-left: 5px solid var(--red);
}

.review-item.unanswered {
  border-left: 5px solid var(--amber);
}

.review-item h3 {
  margin: 8px 0 14px;
  font-size: 1.05rem;
  line-height: 1.45;
}

.review-item .question-focus {
  margin-top: 10px;
  padding: 12px 14px;
  font-size: 1rem;
}

.review-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  color: var(--muted);
  font-size: 0.9rem;
}

.review-options {
  display: grid;
  gap: 8px;
}

.review-option {
  min-height: 44px;
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  display: grid;
  grid-template-columns: 32px minmax(0, 1fr);
  gap: 10px;
  align-items: start;
}

.review-option.correct-answer {
  border-color: var(--green);
  background: var(--green-soft);
}

.review-option.user-wrong {
  border-color: var(--red);
  background: var(--red-soft);
}

.review-empty {
  min-height: 120px;
  border: 1px dashed var(--line);
  border-radius: var(--radius);
  display: grid;
  place-items: center;
  color: var(--muted);
  background: rgba(255, 255, 255, 0.58);
}

.page-footer {
  padding: 20px 0 28px;
  color: var(--muted);
  font-size: 0.9rem;
  text-align: center;
}

.submit-dialog {
  width: min(430px, calc(100% - 28px));
  border: 0;
  padding: 0;
  background: transparent;
}

.submit-dialog::backdrop {
  background: rgba(23, 32, 26, 0.32);
}

.submit-dialog form {
  padding: 22px;
}

.submit-dialog h2 {
  margin: 0 0 10px;
}

.submit-dialog p {
  color: var(--muted);
  line-height: 1.55;
}

.dialog-actions {
  display: flex;
  justify-content: flex-end;
  gap: 10px;
}

@media (max-width: 920px) {
  .setup-view,
  .exam-layout {
    grid-template-columns: 1fr;
  }

  .question-map {
    position: static;
    order: 2;
  }

  .exam-paper {
    order: 1;
  }

  .map-grid {
    grid-template-columns: repeat(10, minmax(0, 1fr));
  }

  .metrics-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 680px) {
  .app-shell {
    width: min(100% - 20px, 1180px);
  }

  .topbar,
  .exam-status,
  .result-head,
  .review-toolbar {
    align-items: stretch;
    flex-direction: column;
  }

  .top-meta,
  .status-cluster,
  .result-actions {
    justify-content: flex-start;
  }

  .setup-copy,
  .setup-panel,
  .exam-paper {
    padding: 18px;
  }

  .setup-copy {
    min-height: 470px;
  }

  h1 {
    font-size: 2.25rem;
  }

  .setup-facts,
  .segmented {
    grid-template-columns: 1fr;
  }

  .map-grid {
    grid-template-columns: repeat(5, minmax(0, 1fr));
  }

  .paper-actions {
    flex-direction: column;
  }

  .paper-actions button,
  .result-actions button,
  .dialog-actions button {
    width: 100%;
  }

  .metrics-grid {
    grid-template-columns: 1fr;
  }

  .dialog-actions {
    flex-direction: column;
  }
}