body {
  font-family: Arial, sans-serif;
  background: #f4f6f8;
  margin: 0;
  padding: 0;
  color: #222;
}

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 24px;
}

header {
  margin-bottom: 20px;
}

h1 {
  margin-bottom: 6px;
}

.subtitle {
  color: #555;
  margin-top: 0;
}

.top-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 16px;
  gap: 12px;
  flex-wrap: wrap;
}

.timer-box {
  background: #fff;
  border: 1px solid #d9dee3;
  padding: 10px 14px;
  border-radius: 8px;
}

.card {
  background: #fff;
  border-radius: 10px;
  padding: 20px;
  margin-bottom: 18px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
}

label {
  display: block;
  margin-top: 14px;
  margin-bottom: 6px;
  font-weight: bold;
}

textarea {
  width: 100%;
  padding: 10px;
  border: 1px solid #cbd3da;
  border-radius: 8px;
  font-size: 14px;
  box-sizing: border-box;
}

button {
  cursor: pointer;
}

.primary-btn {
  background: #1f5fbf;
  color: #fff;
  border: none;
  padding: 10px 16px;
  border-radius: 8px;
  margin-top: 16px;
  font-size: 14px;
}

.primary-btn:hover {
  background: #174b96;
}

.secondary-btn {
  background: #eceff3;
  color: #222;
  border: 1px solid #cfd6dd;
  padding: 10px 16px;
  border-radius: 8px;
  margin-top: 16px;
  font-size: 14px;
}

.secondary-btn:hover {
  background: #dde3ea;
}

.hidden {
  display: none;
}

.button-row {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.score-box {
  background: #eef6ff;
  border-left: 6px solid #1f5fbf;
  padding: 16px;
  border-radius: 8px;
  margin-bottom: 20px;
}

.summary-box {
  background: #f9fafb;
  border: 1px solid #dce3ea;
  padding: 16px;
  border-radius: 8px;
  white-space: pre-wrap;
}

ul,
ol {
  padding-left: 20px;
}

.drag-note {
  margin-bottom: 18px;
  color: #555;
}

.planning-block {
  margin-bottom: 28px;
}

.item-bank-label {
  font-weight: bold;
  margin-bottom: 8px;
}

.drag-bank {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  padding: 14px;
  border: 2px dashed #cbd3da;
  border-radius: 10px;
  background: #f9fbfd;
  margin-bottom: 14px;
  min-height: 68px;
}

.drag-card {
  background: #ffffff;
  border: 1px solid #cbd3da;
  border-radius: 8px;
  padding: 10px 14px;
  font-size: 14px;
  cursor: grab;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
  user-select: none;
}

.answer-area {
  display: grid;
  grid-template-columns: repeat(3, minmax(180px, 1fr));
  gap: 12px;
}

.answer-area-4 {
  grid-template-columns: repeat(4, minmax(160px, 1fr));
}

.answer-area-1 {
  grid-template-columns: 1fr;
}

.answer-box {
  background: #f8fafc;
  border: 1px solid #d7dee6;
  border-radius: 10px;
  padding: 12px;
}

.answer-label {
  font-weight: bold;
  margin-bottom: 8px;
  color: #444;
}

.drop-list {
  min-height: 64px;
  border: 2px dashed #b8c2cc;
  border-radius: 8px;
  padding: 8px;
  background: #fff;
}

.drop-list.has-item {
  border-style: solid;
  background: #eef6ff;
}

.sortable-ghost {
  opacity: 0.35;
}

.sortable-chosen {
  cursor: grabbing;
}

.drop-list .drag-card,
.drag-bank .drag-card {
  margin-bottom: 6px;
}

.drop-list .drag-card:last-child,
.drag-bank .drag-card:last-child {
  margin-bottom: 0;
}

@media (max-width: 900px) {
  .answer-area,
  .answer-area-4,
  .answer-area-1 {
    grid-template-columns: 1fr;
  }
}