:root {
  --bg: #1e293b; /* Sanftes Dunkelblau-Grau */
  --card: #f8fafc; /* Hellgrau/Weiß für die Karten */
  --accent: #3b82f6; /* Modernes Blau */
  --text-dark: #1e293b;
  --text-light: #94a3b8;
  --input-border: #e2e8f0;
}

body {
  margin: 0;
  font-family: 'Inter', -apple-system, sans-serif;
  background-color: var(--bg);
  color: var(--text-dark);
  display: flex;
  justify-content: center;
  padding: 40px 20px;
}

.wrap {
  width: 100%;
  max-width: 1000px;
}

.card {
  background: var(--card);
  border-radius: 24px;
  padding: 32px;
  box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.2);
  margin-bottom: 30px;
}

h2 {
  margin: 0 0 24px 0;
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-dark);
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 20px;
  margin-bottom: 24px;
}

label {
  display: block;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-light);
  margin-bottom: 8px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

input {
  width: 100%;
  padding: 12px 16px;
  border: 2px solid var(--input-border);
  border-radius: 12px;
  font-size: 1.1rem;
  font-weight: 600;
  transition: all 0.2s ease;
  background: #ffffff;
}

input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 4px rgba(59, 130, 246, 0.1);
}

.btn {
  padding: 14px 28px;
  border-radius: 12px;
  border: none;
  font-weight: 700;
  font-size: 1rem;
  cursor: pointer;
  transition: all 0.2s;
}

.btn-primary {
  background: var(--accent);
  color: white;
}

.btn-primary:hover {
  background: #2563eb;
  transform: translateY(-1px);
}

.btn-ghost {
  background: #f1f5f9;
  color: #64748b;
  margin-left: 10px;
}

table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  margin-top: 20px;
}

th {
  text-align: left;
  padding: 12px;
  border-bottom: 2px solid #f1f5f9;
  color: var(--text-light);
  font-size: 0.75rem;
  text-transform: uppercase;
}

td {
  padding: 12px;
  border-bottom: 1px solid #f1f5f9;
  font-weight: 500;
}

/* Accordion Styles (Gemini-compatible) */
.accordion {
  background: var(--card);
  border-radius: 16px;
  border: 2px solid var(--input-border);
  margin: 20px 0;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
}

.accordion summary {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
  padding: 20px 24px;
  border-radius: 14px;
  cursor: pointer;
  font-weight: 600;
  font-size: 1rem;
  display: flex;
  align-items: center;
  gap: 12px;
  -webkit-user-select: none;
  user-select: none;
  transition: all 0.2s ease;
  list-style: none;
}

.accordion summary::-webkit-details-marker {
  display: none;
}

.accordion summary::before {
  content: '▼';
  font-size: 0.8rem;
  transition: transform 0.2s ease;
  transform: rotate(-90deg);
}

.accordion[open] summary::before {
  transform: rotate(0deg);
}

.accordion summary:hover {
  opacity: 0.9;
  box-shadow: 0 4px 12px rgba(102, 126, 234, 0.3);
}

.accordion-content {
  padding: 20px 24px;
  color: var(--text-dark);
  line-height: 1.6;
  font-size: 0.95rem;
}

.accordion-content p {
  margin: 0 0 12px 0;
}

.accordion-content p:last-child {
  margin-bottom: 0;
}

.accordion-content strong {
  color: var(--accent);
  font-weight: 700;
}

/* Timer Overlay Styles */
.timer-overlay {
  position: fixed;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  z-index: 9999;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
  font-family: 'Inter', -apple-system, sans-serif;
}

.timer-overlay.active {
  opacity: 1;
  pointer-events: all;
}

.timer-overlay.phase-prep {
  background: rgba(239, 68, 68, 0.95);
}

.timer-overlay.phase-measure {
  background: rgba(34, 197, 94, 0.95);
}

.timer-phase {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  width: 100%;
}

.timer-label {
  font-size: 1.5rem;
  font-weight: 600;
  color: white;
  margin-bottom: 20px;
  letter-spacing: 0.05em;
}

.timer-display {
  font-size: 15rem;
  font-weight: 900;
  color: white;
  line-height: 1;
  font-variant-numeric: tabular-nums;
  text-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
  margin: 0;
  padding: 0;
}

.timer-instruction {
  font-size: 1.25rem;
  color: white;
  margin-top: 30px;
  font-weight: 500;
  opacity: 0.9;
}

/* Responsive Design */
@media (max-width: 768px) {
  body {
    padding: 20px 16px;
  }

  .card {
    border-radius: 16px;
    padding: 20px;
    margin-bottom: 20px;
  }

  h2 {
    font-size: 1.25rem;
    margin-bottom: 16px;
  }

  .grid {
    grid-template-columns: 1fr;
    gap: 12px;
    margin-bottom: 16px;
  }

  .accordion summary {
    padding: 16px 20px;
    font-size: 0.95rem;
  }

  .accordion-content {
    padding: 16px 20px;
    font-size: 0.9rem;
  }

  .timer-display {
    font-size: 8rem;
  }

  .timer-label {
    font-size: 1.25rem;
    margin-bottom: 15px;
  }

  .timer-instruction {
    font-size: 1rem;
    margin-top: 20px;
  }

  .btn {
    padding: 12px 20px;
    font-size: 0.95rem;
  }
}

@media (max-width: 480px) {
  body {
    padding: 16px 12px;
  }

  .card {
    border-radius: 12px;
    padding: 16px;
  }

  h2 {
    font-size: 1.1rem;
    margin-bottom: 12px;
  }

  .accordion summary {
    padding: 14px 16px;
    font-size: 0.9rem;
  }

  .accordion-content {
    padding: 14px 16px;
    font-size: 0.85rem;
  }

  .timer-display {
    font-size: 5rem;
  }

  .timer-label {
    font-size: 1.1rem;
    margin-bottom: 10px;
  }

  .btn {
    padding: 10px 16px;
    font-size: 0.9rem;
  }
}

/* D&D Interactive Styles */
.scale-container {
  margin-bottom: 20px;
}

.scale-reference {
  background: rgba(59, 130, 246, 0.05);
  padding: 20px;
  border-radius: 12px;
  border-left: 4px solid var(--accent);
  margin-bottom: 20px;
}

.scale-reference h3 {
  color: var(--text-dark);
  margin: 0 0 12px 0;
  font-size: 1.15rem;
}

.scale-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
  gap: 8px;
  margin-bottom: 20px;
}

.scale-item {
  padding: 12px;
  border-radius: 8px;
  text-align: center;
  transition: all 0.2s ease;
  cursor: pointer;
}

.scale-item:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.scale-level {
  font-size: 1.25rem;
  font-weight: 800;
  color: #1e293b;
  margin-bottom: 4px;
}

.scale-description {
  font-size: 0.8rem;
  font-weight: 600;
  color: #475569;
}

/* 3x2 Grid Layout for D&D Scale */
.scale-grid-3x2 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-bottom: 20px;
}

.scale-tile {
  padding: 24px 20px;
  border-radius: 12px;
  text-align: center;
  transition: all 0.3s ease;
  cursor: pointer;
  min-height: 450px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.scale-tile:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15);
}

.scale-tile-level {
  font-size: 1.8rem;
  font-weight: 900;
  color: #1e293b;
  margin-bottom: 12px;
  letter-spacing: 0.05em;
}

.scale-tile-content {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.scale-tile-main {
  font-size: 1.05rem;
  font-weight: 700;
  color: #1e293b;
  line-height: 1.4;
}

.scale-tile-detail {
  font-size: 0.85rem;
  color: #475569;
  line-height: 1.5;
  text-align: left;
  background: rgba(255, 255, 255, 0.6);
  padding: 10px;
  border-radius: 8px;
}

/* Responsive 3x2 Grid */
@media (max-width: 1024px) {
  .scale-grid-3x2 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 640px) {
  .scale-grid-3x2 {
    grid-template-columns: 1fr;
  }

  .scale-tile {
    min-height: 160px;
  }
}

/* Matching Container */
.matching-container {
  margin-bottom: 20px;
}

.reactions-list {
  background: rgba(59, 130, 246, 0.05);
  padding: 20px;
  border-radius: 12px;
  border-left: 4px solid var(--accent);
  margin-bottom: 20px;
}

.reactions-list h4 {
  color: var(--text-dark);
  margin: 0 0 12px 0;
  font-size: 1rem;
  font-weight: 700;
}

.drag-items {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.draggable-reaction {
  background: white;
  border: 2px solid var(--accent);
  color: var(--text-dark);
  padding: 12px 16px;
  border-radius: 8px;
  cursor: grab;
  transition: all 0.2s ease;
  font-weight: 600;
  -webkit-user-select: none;
  user-select: none;
  max-width: 100%;
  word-break: break-word;
  word-wrap: break-word;
  white-space: normal;
}

.draggable-reaction:active {
  cursor: grabbing;
}

.draggable-reaction:hover {
  box-shadow: 0 4px 12px rgba(59, 130, 246, 0.3);
  transform: translateY(-2px);
}

.intensity-boxes {
  margin-bottom: 20px;
}

.intensity-boxes h4 {
  color: var(--text-dark);
  margin: 0 0 12px 0;
  font-size: 1rem;
  font-weight: 700;
}

.boxes-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 12px;
  margin-bottom: 20px;
}

@media (max-width: 1200px) {
  .boxes-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

@media (max-width: 900px) {
  .boxes-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.drop-box {
  border: 2px dashed var(--input-border);
  padding: 20px;
  border-radius: 12px;
  min-height: 150px;
  transition: all 0.2s ease;
  background: white;
}

.drop-box:hover {
  border-color: var(--accent);
  background: rgba(59, 130, 246, 0.02);
}

.box-title {
  font-weight: 700;
  color: var(--text-dark);
  margin-bottom: 12px;
  font-size: 0.95rem;
}

.drop-hint {
  text-align: center;
  color: var(--text-light);
  font-size: 0.9rem;
  padding: 20px 0;
}

.dropped-items {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  min-height: 40px;
  align-content: flex-start;
  width: 100%;
}

.dropped-item {
  background: var(--accent);
  color: white;
  padding: 8px 12px;
  border-radius: 6px;
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  gap: 8px;
  font-weight: 600;
  font-size: 0.85rem;
  animation: slideIn 0.2s ease;
  border-left: 4px solid transparent;
  white-space: normal;
  word-break: break-word;
  transition: all 0.2s ease;
  max-width: 100%;
}

.dropped-item.correct-item {
  background: #dcfce7;
  color: #166534;
  border-left: 4px solid #22c55e;
  opacity: 0.8;
}

.dropped-item.wrong-item {
  background: #fee2e2;
  color: #991b1b;
  border-left: 4px solid #ef4444;
  animation: shake 0.3s ease;
}

@keyframes slideIn {
  from {
    opacity: 0;
    transform: translateY(-10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes shake {
  0%, 100% { transform: translateX(0); }
  25% { transform: translateX(-4px); }
  75% { transform: translateX(4px); }
}

.remove-btn {
  background: rgba(255, 255, 255, 0.3);
  border: none;
  color: white;
  font-size: 1.2rem;
  padding: 0 6px;
  cursor: pointer;
  border-radius: 3px;
  transition: background 0.2s ease;
  font-weight: bold;
}

.remove-btn:hover {
  background: rgba(255, 255, 255, 0.5);
}

/* Load Level Container */
.load-level-container {
  margin-bottom: 20px;
}

#exertion-timer {
  background: rgba(59, 130, 246, 0.1);
  padding: 40px 20px;
  border-radius: 12px;
  border: 2px solid var(--accent);
}

#rpe-feedback {
  animation: slideIn 0.2s ease;
}

input[type="range"] {
  -webkit-appearance: none;
  width: 100%;
  height: 8px;
  border-radius: 5px;
  background: linear-gradient(to right, #dcfce7 0%, #fef3c7 50%, #fed7aa 100%);
  outline: none;
}

input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--accent);
  cursor: pointer;
  box-shadow: 0 2px 8px rgba(59, 130, 246, 0.4);
}

input[type="range"]::-moz-range-thumb {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--accent);
  cursor: pointer;
  border: none;
  box-shadow: 0 2px 8px rgba(59, 130, 246, 0.4);
}

/* Responsive D&D */
@media (max-width: 768px) {
  .scale-grid {
    grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
  }

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

  .drag-items {
    flex-direction: column;
  }

  .draggable-reaction {
    width: 100%;
  }
}