/**
 * 众水不灭 · 雅歌之印
 * 文件名: css/scratch-card.css
 * 作用: 奢华奶油质感特权卡片、舒适排版与复古红色核销印章
 */

.scratch-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
  max-width: 960px;
  margin: 0 auto;
  padding: 10px;
}

.scratch-card {
  position: relative;
  background: linear-gradient(135deg, #fefbf3 0%, #faede1 100%);
  border: 1.5px solid rgba(245, 158, 11, 0.35);
  border-radius: 20px;
  min-height: 220px;
  overflow: hidden;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.35), inset 0 0 15px rgba(255, 255, 255, 0.8);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 22px 20px;
  box-sizing: border-box;
  transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.3s ease;
}

.scratch-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 15px 35px rgba(245, 158, 11, 0.25);
}

.scratch-card__body {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  height: 100%;
}

.scratch-card__header-row {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 12px;
}

.scratch-card__icon {
  font-size: 26px;
  line-height: 1;
  filter: drop-shadow(0 2px 4px rgba(0,0,0,0.1));
}

.scratch-card__title {
  font-size: 17px;
  font-weight: 900;
  color: #831843;
  margin: 0;
  letter-spacing: 0.5px;
}

.scratch-card__content {
  font-size: 13.5px;
  color: #4a044e;
  line-height: 1.65;
  margin: 0 0 18px 0;
  flex-grow: 1;
  font-weight: 500;
}

.scratch-card__footer-row {
  margin-top: auto;
  display: flex;
  align-items: center;
  justify-content: flex-start;
}

.scratch-card__use-btn {
  background: linear-gradient(135deg, #e11d48 0%, #be123c 100%);
  color: #ffffff;
  border: none;
  border-radius: 20px;
  padding: 8px 18px;
  font-size: 12.5px;
  font-weight: 800;
  cursor: pointer;
  box-shadow: 0 4px 12px rgba(225, 29, 72, 0.35);
  transition: all 0.2s ease;
}

.scratch-card__use-btn:hover:not(:disabled) {
  transform: scale(1.05);
  box-shadow: 0 6px 16px rgba(225, 29, 72, 0.5);
}

.scratch-card__use-btn:disabled {
  background: #cbd5e1;
  color: #64748b;
  cursor: not-allowed;
  box-shadow: none;
}

/* 覆盖涂层 Canvas */
.scratch-card__canvas {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 5;
  cursor: grab;
  border-radius: 20px;
  transition: opacity 0.3s ease;
}

/* 复古红色核销印章 */
.scratch-card__stamp {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) rotate(-15deg) scale(0.9);
  width: 110px;
  height: 110px;
  border: 3px dashed #e11d48;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 10;
  pointer-events: none;
  animation: stampPunch 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275) forwards;
  background: rgba(255, 255, 255, 0.15);
}

.stamp-inner {
  font-size: 18px;
  font-weight: 900;
  color: #e11d48;
  text-align: center;
  line-height: 1.2;
  letter-spacing: 2px;
}

.stamp-inner small {
  display: block;
  font-size: 10px;
  letter-spacing: 0px;
  margin-top: 4px;
}

@keyframes stampPunch {
  0% { transform: translate(-50%, -50%) rotate(0deg) scale(2); opacity: 0; }
  100% { transform: translate(-50%, -50%) rotate(-15deg) scale(1); opacity: 0.9; }
}