:root {
  color-scheme: light;
  --ink: #182026;
  --muted: #66727d;
  --line: #d8ded7;
  --paper: #f7f4ed;
  --surface: #ffffff;
  --green: #2f7d59;
  --green-dark: #205840;
  --blue: #285c8f;
  --red: #b54a45;
  --amber: #a96f2b;
  --shadow: 0 18px 45px rgba(24, 32, 38, 0.11);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background: var(--paper);
  color: var(--ink);
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    sans-serif;
}

.level-gate {
  position: fixed;
  inset: 0;
  z-index: 20;
  display: grid;
  place-items: center;
  background: rgba(247, 244, 237, 0.96);
  padding: 22px;
}

.level-gate-inner {
  width: min(720px, 100%);
}

.level-gate h1 {
  font-size: 36px;
  margin-bottom: 22px;
}

.level-choice-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}

.level-choice {
  min-height: 150px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  color: var(--ink);
  cursor: pointer;
  padding: 22px;
  text-align: left;
  box-shadow: var(--shadow);
}

.level-choice:hover {
  border-color: var(--green);
  outline: 4px solid rgba(47, 125, 89, 0.12);
}

.level-choice strong,
.level-choice span {
  display: block;
}

.level-choice strong {
  font-size: 34px;
  margin-bottom: 10px;
}

.level-choice span {
  color: var(--muted);
  font-size: 15px;
  line-height: 1.4;
}

button,
select {
  font: inherit;
}

.app-shell {
  display: grid;
  grid-template-columns: 340px minmax(0, 1fr);
  min-height: 100vh;
}

.sidebar {
  border-right: 1px solid var(--line);
  background: #fbfaf6;
  padding: 28px 22px;
  overflow: auto;
}

.brand {
  margin-bottom: 22px;
}

.eyebrow {
  margin: 0 0 5px;
  color: var(--muted);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0;
  text-transform: uppercase;
}

h1,
h2 {
  margin: 0;
  letter-spacing: 0;
}

h1 {
  font-size: 30px;
}

h2 {
  font-size: 24px;
}

.panel {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  padding: 14px;
  margin-top: 14px;
}

.panel-title {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
  font-weight: 800;
}

.level-switch {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 8px;
}

.level-switch-button {
  min-height: 40px;
  border: 1px solid var(--line);
  border-radius: 7px;
  background: #eef0ed;
  color: var(--ink);
  cursor: pointer;
  font-weight: 850;
}

.level-switch-button.active {
  border-color: var(--green);
  background: #e9f2ec;
  color: var(--green-dark);
}

.teil-list {
  display: grid;
  gap: 8px;
  max-height: 42vh;
  overflow: auto;
  padding-right: 3px;
}

.teil-item {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 9px;
  align-items: center;
  border: 1px solid var(--line);
  border-radius: 7px;
  padding: 9px;
  cursor: pointer;
}

.teil-item input {
  width: 18px;
  height: 18px;
  accent-color: var(--green);
}

.teil-name {
  min-width: 0;
}

.teil-name strong {
  display: block;
  font-size: 14px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.teil-name span {
  color: var(--muted);
  font-size: 12px;
}

.count-pill {
  border-radius: 999px;
  background: #e9f2ec;
  color: var(--green-dark);
  padding: 3px 8px;
  font-size: 12px;
  font-weight: 800;
}

.controls {
  display: grid;
  gap: 12px;
}

.controls label {
  display: grid;
  gap: 6px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 700;
}

select {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 7px;
  background: white;
  color: var(--ink);
  padding: 10px 11px;
}

.primary-button,
.ghost-button,
.answer-button {
  border: 0;
  border-radius: 7px;
  cursor: pointer;
  font-weight: 850;
}

.primary-button {
  min-height: 44px;
  background: var(--green);
  color: white;
  padding: 11px 16px;
}

.primary-button:hover {
  background: var(--green-dark);
}

.ghost-button {
  background: #eef0ed;
  color: var(--ink);
  padding: 7px 10px;
  font-size: 13px;
}

.practice {
  display: grid;
  grid-template-rows: auto minmax(0, 1fr) auto;
  min-width: 0;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 22px;
  border-bottom: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.74);
  padding: 24px 30px;
}

.stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(82px, auto));
  gap: 10px;
}

.stats div {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: white;
  padding: 9px 12px;
  text-align: center;
}

.stats strong,
.stats span {
  display: block;
}

.stats strong {
  font-size: 20px;
}

.stats span {
  color: var(--muted);
  font-size: 12px;
}

.card-stage {
  display: grid;
  place-items: center;
  padding: 34px;
}

.question-card {
  width: min(920px, 100%);
  min-height: 520px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  box-shadow: var(--shadow);
}

.card-face {
  min-height: 520px;
  padding: 34px;
}

.hidden {
  display: none;
}

.card-meta {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  color: var(--muted);
  font-weight: 800;
}

.card-meta span:first-child {
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.card-meta span:last-child {
  flex: 0 0 auto;
}

.german-question {
  display: flex;
  align-items: center;
  min-height: 190px;
  margin: 8px 0 18px;
  font-family: Georgia, "Times New Roman", serif;
  font-size: 31px;
  line-height: 1.36;
}

.german-question.field-question {
  display: block;
  min-height: 230px;
  overflow-wrap: anywhere;
  white-space: pre-line;
  font-family: inherit;
  font-size: 19px;
  line-height: 1.5;
}

.prompt-label {
  margin: 22px 0 0;
  color: var(--muted);
  font-size: 12px;
  font-weight: 900;
  text-transform: uppercase;
}

.paragraph-panel {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 8px;
  margin-bottom: 20px;
}

.paragraph-option {
  min-width: 0;
  border: 1px solid var(--line);
  border-radius: 7px;
  background: #fbfaf6;
  padding: 10px;
}

.paragraph-option strong,
.paragraph-option span,
.paragraph-option em {
  display: block;
}

.paragraph-option strong {
  color: var(--green-dark);
  font-size: 16px;
}

.paragraph-option span {
  margin-top: 6px;
  font-family: Georgia, "Times New Roman", serif;
  font-size: 13px;
  line-height: 1.3;
}

.paragraph-option em {
  margin-top: 8px;
  color: var(--muted);
  font-size: 12px;
  font-style: normal;
  line-height: 1.35;
}

.answer-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.answer-grid[data-count="4"],
.answer-grid[data-count="5"] {
  grid-template-columns: repeat(5, minmax(0, 1fr));
}

.answer-grid[data-count="8"] {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.audio-panel {
  margin-bottom: 20px;
}

.audio-panel audio {
  width: 100%;
  border-radius: 8px;
}

.no-audio-notice {
  margin: 0;
  padding: 18px 22px;
  border: 2px dashed var(--line);
  border-radius: 8px;
  color: var(--muted);
  font-size: 16px;
  text-align: center;
}

.answer-grid[data-count="8"] .answer-button {
  min-height: 52px;
  font-size: 15px;
  text-align: left;
  padding: 10px 14px;
  line-height: 1.35;
}

.answer-button {
  min-height: 74px;
  background: #eef3f8;
  color: var(--blue);
  font-size: 18px;
}

.answer-button:hover {
  outline: 3px solid rgba(40, 92, 143, 0.16);
}

.answer-button[data-choice="F"],
.answer-button[data-choice="B"] {
  background: #f6eeea;
  color: var(--amber);
}

.answer-button[data-choice="X"],
.answer-button[data-choice="C"],
.answer-button[data-choice="E"] {
  background: #f3eeee;
  color: var(--red);
}

.answer-button[data-choice="D"] {
  background: #eff0f7;
  color: #534f8d;
}

.result-line {
  border-radius: 8px;
  padding: 14px 16px;
  margin-bottom: 22px;
  background: #e9f2ec;
  color: var(--green-dark);
  font-size: 20px;
  font-weight: 900;
}

.result-line.wrong {
  background: #f8e8e5;
  color: var(--red);
}

.result-line.neutral {
  background: #eef0ed;
  color: var(--muted);
}

.review-grid {
  display: grid;
  gap: 18px;
  margin: 0;
}

.review-grid div {
  border-bottom: 1px solid var(--line);
  padding-bottom: 15px;
}

.review-grid dt {
  color: var(--muted);
  font-size: 12px;
  font-weight: 900;
  text-transform: uppercase;
}

.review-grid dd {
  margin: 7px 0 0;
  font-size: 20px;
  line-height: 1.45;
  white-space: pre-line;
}

.back-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.next-button,
.miss-button {
  min-width: 180px;
}

.round-strip {
  min-height: 60px;
  border-top: 1px solid var(--line);
  background: #fbfaf6;
  padding: 14px 30px;
  color: var(--muted);
  font-size: 14px;
}

@media (max-width: 850px) {
  .app-shell {
    grid-template-columns: 1fr;
  }

  .sidebar {
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .teil-list {
    max-height: 260px;
  }

  .topbar,
  .card-stage {
    padding: 20px;
  }

  .topbar {
    align-items: flex-start;
    flex-direction: column;
  }

  .stats,
  .answer-grid {
    width: 100%;
    grid-template-columns: 1fr;
  }

  .level-choice-grid,
  .level-switch,
  .paragraph-panel,
  .answer-grid[data-count="4"],
  .answer-grid[data-count="5"] {
    grid-template-columns: 1fr;
  }

  .card-face {
    padding: 22px;
  }

  .german-question {
    font-size: 24px;
    min-height: 120px;
  }
}