@import url('https://fonts.googleapis.com/css2?family=Fredoka+One&family=Nunito:wght@400;600;700;800&display=swap');

:root {
  --brown: #6D4C41;
  --brown-light: #A1887F;
  --brown-dark: #4E342E;
  --cream: #FFF8E1;
  --green: #43A047;
  --green-bg: rgba(67,160,71,0.1);
  --red: #E53935;
  --red-bg: rgba(229,57,53,0.08);
  --gold: #F57F17;
  --gold-light: rgba(245,127,23,0.12);
  --text: #5D4037;
  --text-light: #8D6E63;
  --text-mid: #6D4C41;
  --blue: #42A5F5;
  --blue-light: rgba(66,165,245,0.08);
  --blue-dark: #1565C0;
  --accent-blue: #42A5F5;
  --bg-primary: #FAF5EC;
  --bg-secondary: #FFFFFF;
  --bg-tertiary: #F5F0E8;
  --border-color: #E0D5C8;
  --shadow-sm: 0 2px 8px rgba(109,76,65,0.08);
  --shadow-md: 0 4px 16px rgba(109,76,65,0.12);
  --shadow-lg: 0 8px 32px rgba(109,76,65,0.16);
}

body {
  background: var(--bg-primary);
  color: var(--text);
  font-family: 'Nunito', 'Segoe UI', sans-serif;
}

a { color: var(--brown); }
a:hover { color: var(--brown-dark); }

h1, h2, h3 { color: var(--brown-dark); font-family: 'Fredoka One', cursive; }

.header {
  background: #6D4C41;
  border-bottom-color: var(--brown-light);
  box-shadow: 0 2px 10px rgba(109,76,65,0.25);
}
.header h1 {
  color: #FFF8E1;
  font-family: 'Fredoka One', cursive;
}
.header .btn-back {
  background: rgba(255,255,255,0.15);
  border-color: rgba(255,255,255,0.3);
  color: #FFF8E1;
  font-family: 'Nunito', sans-serif;
}
.header .btn-back:hover {
  border-color: #FFF8E1;
  color: #FFF8E1;
}

.main-container {
  background: var(--bg-primary);
}

.story-box {
  background: linear-gradient(135deg, rgba(109,76,65,0.06), rgba(109,76,65,0.03));
  border-left-color: var(--brown);
}
.story-box p { color: var(--text); }

.task-card {
  background: white;
  border-color: var(--border-color);
  box-shadow: var(--shadow-sm);
}

.task-label {
  color: var(--brown);
}

.instruction {
  color: var(--text);
}

.answer-section {
  background: var(--bg-tertiary);
}
.answer-section label {
  color: var(--brown);
}

.answer-input {
  background: white;
  color: var(--text);
  border-color: var(--border-color);
  font-family: 'Nunito', sans-serif;
}
.answer-input:focus { border-color: var(--brown); }
.answer-input.correct { border-color: var(--green); background: var(--green-bg); color: var(--green); }
.answer-input.wrong { border-color: var(--red); background: var(--red-bg); color: var(--red); }

.value-table th {
  background: var(--brown);
  color: white;
  border-color: var(--border-color);
}
.value-table td {
  border-color: var(--border-color);
  color: var(--text);
  background: white;
}
.value-table td input {
  background: white;
  color: var(--text);
  border-color: var(--border-color);
  font-family: 'Nunito', sans-serif;
}
.value-table td input:focus { border-color: var(--brown); }
.value-table td input.correct { border-color: var(--green); background: var(--green-bg); }
.value-table td input.wrong { border-color: var(--red); background: var(--red-bg); }

.btn {
  background: var(--green);
  color: white;
  font-family: 'Nunito', sans-serif;
}
.btn:active { transform: scale(0.97); }
.btn-check { background: var(--green); color: white; }
.btn-check:hover { background: #388E3C; }
.btn-next { background: var(--brown); color: white; }
.btn-next:hover { background: var(--brown-dark); }
.btn-secondary {
  background: var(--bg-tertiary);
  color: var(--text);
  border-color: var(--border-color);
}
.btn-secondary:hover { border-color: var(--brown); }

.hint-btn {
  border-color: var(--border-color);
  color: var(--text);
  font-family: 'Nunito', sans-serif;
}
.hint-btn:hover { border-color: var(--brown); color: var(--brown); }
.hint-text {
  background: rgba(109,76,65,0.06);
  border-left-color: var(--brown);
  color: var(--text);
}

.feedback.success { background: var(--green-bg); color: var(--green); border-color: var(--green); }
.feedback.error { background: var(--red-bg); color: var(--red); border-color: var(--red); }

.info-box {
  background: white;
  border-color: var(--brown-light);
}
.info-box .info-title { color: var(--brown); }
.info-box p { color: var(--text); }

.reflection-box {
  background: white;
  border-color: var(--brown);
}
.reflection-box .reflection-title { color: var(--brown); }
.reflection-box p { color: var(--text); }

.example-box {
  background: var(--green-bg);
  border-left-color: var(--green);
  color: var(--text);
}
.example-box strong { color: var(--green); }

.explain-box {
  background: var(--blue-light);
  border-left-color: var(--blue);
  color: var(--text);
}
.explain-box strong { color: var(--blue-dark); }

.var-callout {
  background: var(--green-bg);
  border-color: var(--green);
  color: var(--green);
}

.cloze-text { color: var(--text); }
.cloze-text strong { color: var(--brown); }
.cloze-section-label {
  background: var(--blue-light);
  color: var(--blue-dark);
}

.laufzettel-section {
  background: white;
  border-color: var(--brown);
}
.laufzettel-section h3 { color: var(--brown-dark); }
.laufzettel-section p { color: var(--text-light); }
.laufzettel-btn {
  background: var(--brown);
  color: white;
  font-family: 'Nunito', sans-serif;
}
.laufzettel-btn:hover { background: var(--brown-dark); }

.escape-card {
  background: var(--bg-tertiary);
  border-color: var(--brown);
  color: var(--text);
}
.escape-card:hover { box-shadow: var(--shadow-md); }
.escape-card h2 { color: var(--brown-dark); }
.escape-card p { color: var(--text-light); }

.pattern-formula {
  background: rgba(109,76,65,0.06);
  border-color: var(--brown);
  color: var(--brown-dark);
}
.formula-highlight {
  background: rgba(109,76,65,0.1);
}

.math-display {
  background: var(--bg-tertiary);
  border-color: var(--border-color);
}
.math-display .term { color: var(--brown-dark); }

.visual-output {
  background: var(--bg-secondary);
  border-color: var(--border-color);
  color: var(--brown-dark);
}

input[type="range"] { border-color: var(--brown); }
input[type="range"]::-webkit-slider-thumb { border-color: var(--green); }
input[type="range"]::-moz-range-thumb { border-color: var(--green); }

.slider-label { color: var(--brown); }
.slider-value { color: var(--brown-dark); background: white; border-color: var(--border-color); }
.slider-prompt { color: var(--brown); }

.vorwissen-bar {
  background: var(--blue-light);
  border-color: var(--blue);
}
.vorwissen-bar h3 { color: var(--blue-dark); }
.vorwissen-bar p { color: var(--text); }
.vorwissen-link {
  border-color: var(--blue);
  color: var(--blue);
  font-family: 'Nunito', sans-serif;
}
.vorwissen-link:hover { background: var(--blue); color: white; }

.station-card {
  background: white;
  border-color: var(--border-color);
}
.station-card .station-name { color: var(--brown-dark); }
.station-card .station-desc { color: var(--text-light); }
.station-card:hover { border-color: var(--brown); }
.station-card.visited { border-color: var(--green); }

.help-card { background: var(--brown); color: white; }
.help-modal { background: white; border-color: var(--brown); }
.help-modal-title { color: var(--brown); }
.help-modal-body { color: var(--text); }
.help-modal-body strong { color: var(--blue-dark); }

.card {
  background: white;
  border-color: var(--border-color);
  color: var(--text);
}
.card:hover { border-color: var(--brown); }
.card h2 { color: var(--brown-dark); }
.card p { color: var(--text-light); }

.page-title { color: var(--brown-dark); }
.page-subtitle { color: var(--text-light); }
.section-heading { color: var(--brown-dark); }

select {
  font-family: 'Nunito', sans-serif;
  background: white;
  color: var(--text);
}

input[type="text"], input[type="number"], textarea {
  font-family: 'Nunito', sans-serif;
  background: white;
  color: var(--text);
  border-color: var(--border-color);
}

/* ═══════════════════════════════════════════════════
   Shared Station Components
   ═══════════════════════════════════════════════════ */

.level-header {
  display: flex;
  align-items: center;
  gap: 10px;
  background: white;
  border: 2px solid #E0E0E0;
  border-radius: var(--radius-md);
  padding: 14px 18px;
  cursor: pointer;
  user-select: none;
  transition: border-color 0.2s, box-shadow 0.2s;
  margin-bottom: 0;
}
.level-header:hover { border-color: var(--brown-light); box-shadow: var(--shadow-sm); }
.level-header .level-icon { font-size: 1.3rem; }
.level-header .level-title {
  font-family: 'Fredoka One', cursive;
  font-size: 1.05rem;
  color: var(--brown-dark);
  flex: 1;
}
.level-header .level-arrow {
  font-size: 1.2rem;
  color: var(--text-light);
  transition: transform 0.3s;
}
.level-header .level-toggle {
  font-size: 1.3rem;
  transition: transform 0.3s;
}
.level-header .arrow {
  transition: transform 0.3s;
  font-size: 0.9rem;
}
.level-header.open .level-arrow,
.level-header.open .level-toggle { transform: rotate(180deg); }
.level-header.open .arrow { transform: rotate(90deg); }
.level-header.grundbaustein-header,
.level-header.green { border-left: 4px solid var(--green); }
.level-header.aufbau-header,
.level-header.yellow { border-left: 4px solid var(--gold); }
.level-header.spitze-header,
.level-header.red { border-left: 4px solid var(--red); }
.level-header .check-all-btn {
  font-size: 0.78rem;
  padding: 4px 12px;
  background: var(--brown-light);
  color: white;
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-family: 'Nunito', sans-serif;
  font-weight: 700;
}
.level-header .check-all-btn:hover { background: var(--brown); }

.level-content {
  display: none;
  border: 2px solid #E0E0E0;
  border-top: none;
  border-radius: 0 0 var(--radius-md) var(--radius-md);
  padding: 0 18px 18px;
  margin-bottom: 20px;
  background: white;
  animation: fadeUp 0.3s ease;
}
.level-content.open { display: block; }

.self-check {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--brown);
  margin-bottom: 16px;
}
.self-check input[type="checkbox"] {
  width: 20px;
  height: 20px;
  accent-color: var(--green);
  cursor: pointer;
}

.sub-label {
  font-weight: 700;
  color: var(--brown);
  font-size: 0.95rem;
  margin: 8px 0 4px;
}

.input-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: 10px;
  margin-top: 10px;
}
.input-grid .input-item label {
  display: block;
  font-weight: 700;
  color: var(--brown);
  font-size: 0.9rem;
  margin-bottom: 4px;
}
.input-grid .input-item .answer-input { font-size: 1.1em; }

.answer-row {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  margin: 8px 0;
}
.answer-row label {
  font-weight: 700;
  color: var(--brown);
  font-size: 0.92rem;
  min-width: 160px;
}
.answer-row .answer-input { width: 120px; font-size: 1.05em; }
.answer-row .calc-input { width: 140px; font-size: 1em; }

.check-all-btn {
  display: inline-block;
  background: var(--blue);
  color: white;
  padding: 10px 22px;
  font-size: 0.95rem;
  font-weight: 700;
  font-family: 'Nunito', sans-serif;
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  margin-top: 16px;
  box-shadow: 0 3px 0 var(--blue-dark);
  text-transform: uppercase;
  letter-spacing: 0.6px;
  transition: transform 0.15s;
}
.check-all-btn:active { box-shadow: 0 1px 0 var(--blue-dark); transform: translateY(2px); }

.match-row {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  margin: 8px 0;
  padding: 6px 0;
  border-bottom: 1px dashed #EEE;
}
.match-row .match-situation { flex: 1; min-width: 180px; font-size: 0.95rem; }
.match-row .match-arrow { color: var(--text-light); font-weight: 700; }

select.match-select {
  padding: 8px 12px;
  font-size: 1rem;
  font-weight: 700;
  font-family: 'Nunito', sans-serif;
  border: 2px solid #DDD;
  border-radius: var(--radius-sm);
  outline: none;
  background: white;
  min-width: 140px;
  transition: border-color 0.25s, background 0.25s;
}
select.match-select:focus { border-color: var(--gold); }
select.match-select.correct { border-color: var(--green); background: var(--green-bg); }
select.match-select.wrong { border-color: var(--red); background: var(--red-bg); }

.term-answer {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 6px 0;
}
.term-answer label {
  font-weight: 600;
  color: var(--brown);
  min-width: 220px;
  font-size: 0.93rem;
}
.term-answer input {
  flex: 1;
  padding: 8px 12px;
  font-size: 1rem;
  font-weight: 700;
  border: 2px solid #DDD;
  border-radius: var(--radius-sm);
  outline: none;
  font-family: 'Nunito', sans-serif;
  text-align: center;
  max-width: 200px;
}
.term-answer input:focus { border-color: var(--gold); }
.term-answer input.correct { border-color: var(--green); background: var(--green-bg); }
.term-answer input.wrong { border-color: var(--red); background: var(--red-bg); }

.equation-box {
  background: #F5F5F5;
  border: 2px dashed var(--brown-light);
  border-radius: var(--radius-md);
  padding: 14px;
  text-align: center;
  margin: 8px 0;
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--brown-dark);
  font-family: 'Nunito', sans-serif;
}

.step-box {
  background: var(--blue-light);
  border-left: 4px solid var(--blue);
  padding: 8px 14px;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  margin: 6px 0;
  font-size: 0.95rem;
}
.step-box label { color: var(--blue-dark); font-weight: 700; }
.step-box input {
  width: 100px;
  padding: 8px 10px;
  font-size: 1.1rem;
  font-weight: 700;
  border: 2.5px solid #DDD;
  border-radius: var(--radius-sm);
  text-align: center;
  outline: none;
  font-family: 'Nunito', sans-serif;
}
.step-box input:focus { border-color: var(--gold); }
.step-box input.correct { border-color: var(--green); background: var(--green-bg); }
.step-box input.wrong { border-color: var(--red); background: var(--red-bg); }

.radio-group {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin: 4px 0;
}
.radio-group label {
  display: flex;
  align-items: center;
  gap: 4px;
  font-weight: 600;
  cursor: pointer;
  font-size: 0.95rem;
}
.radio-group input[type="radio"] { width: 18px; height: 18px; cursor: pointer; }

.check-group label {
  display: flex;
  align-items: center;
  gap: 6px;
  font-weight: 600;
  cursor: pointer;
  font-size: 0.95rem;
  margin: 3px 0;
}
.check-group input[type="checkbox"] { width: 18px; height: 18px; cursor: pointer; }

select.task-select {
  padding: 8px 12px;
  font-size: 1rem;
  font-weight: 700;
  border: 2.5px solid #DDD;
  border-radius: var(--radius-md);
  font-family: 'Nunito', sans-serif;
  outline: none;
  background: white;
  cursor: pointer;
}
select.task-select:focus { border-color: var(--gold); }
select.task-select.correct { border-color: var(--green); background: var(--green-bg); }
select.task-select.wrong { border-color: var(--red); background: var(--red-bg); }

textarea.task-area {
  width: 100%;
  padding: 10px 14px;
  font-size: 1rem;
  font-family: 'Nunito', sans-serif;
  border: 2.5px solid #DDD;
  border-radius: var(--radius-md);
  outline: none;
  resize: vertical;
  min-height: 60px;
}
textarea.task-area:focus { border-color: var(--gold); }

.inline-items {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.inline-item {
  display: flex;
  align-items: center;
  gap: 6px;
  background: #FAFAFA;
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 0.95rem;
}
.inline-item input { width: 50px; }

.futter-table {
  border-collapse: collapse;
  width: 100%;
  margin: 10px 0;
  font-size: 0.95rem;
}
.futter-table th {
  background: var(--brown);
  color: white;
  padding: 8px 12px;
  font-family: 'Nunito', sans-serif;
  font-weight: 700;
}
.futter-table td {
  border: 1px solid #E0E0E0;
  padding: 6px 10px;
}
.futter-table td input {
  width: 72px;
  padding: 6px 8px;
  font-size: 1rem;
  font-weight: 700;
  border: 2px solid #DDD;
  border-radius: var(--radius-sm);
  text-align: center;
  outline: none;
  font-family: 'Nunito', sans-serif;
}
.futter-table td input:focus { border-color: var(--gold); }
.futter-table td input.correct { border-color: var(--green); background: var(--green-bg); }
.futter-table td input.wrong { border-color: var(--red); background: var(--red-bg); }

.value-table td input { width: 72px; }

@media (min-width: 768px) {
  .main-container { padding: 32px 40px; }
}
@media (min-width: 1024px) {
  .main-container { padding: 40px 48px; }
}

@media print {
  body { background: white !important; color: #333 !important; }
  .header, .station-grid, .vorwissen-bar,
  .laufzettel-section, .btn-back, .help-card, .hint-btn,
  .feedback, .reward-overlay, .reward-sparkles,
  button, .slider-section, .station-content:not(.print-laufzettel) {
    display: none !important;
  }
  .main-container { max-width: 100%; padding: 0; }
}