/* 首页签到系统样式 */

/* Hero Section - 左右布局 */
.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
  padding: 0;
}

/* 确保登录前后高度一致 - 缩小固定高度到200px */
.hero-left,
.hero-right {
  height: 200px;
}

@media (max-width: 768px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 1rem;
  }
  
  .hero-left,
  .hero-right {
    height: auto;
    min-height: auto;
  }
}

.hero-left, .hero-right {
  display: flex;
  flex-direction: column;
}

.hero-left {
  justify-content: center;
}

/* 右侧整体居中 */
.hero-right {
  justify-content: center;
  align-items: center;
}

/* 欢迎卡片 - 取消白色背景 */
.welcome-card {
  background: transparent;
  border-radius: 0;
  padding: 0;
  box-shadow: none;
  border: none;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  max-width: 100%;
}

.welcome-card.guest {
  text-align: center;
  justify-content: center;
}

.recent-problems-section {
  display: flex;
  flex-direction: column;
  align-items: center;
  width: 100%;
}

.welcome-title {
  font-size: 1.125rem;
  font-weight: 600;
  color: rgba(255, 255, 255, 0.95);
  margin-bottom: 0.625rem;
  text-align: center;
}

.welcome-text {
  color: rgba(255, 255, 255, 0.7);
  margin-bottom: 0.875rem;
  text-align: center;
  font-size: 0.875rem;
}

.section-subtitle {
  font-size: 0.75rem;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.7);
  margin-bottom: 0.625rem;
  text-align: center;
}

/* 题目卡片 */
.problem-cards {
  display: flex;
  flex-direction: column;
  gap: 0.625rem;
}

.problem-card {
  padding: 0.75rem;
  border-radius: 0.5rem;
  border: 1px solid var(--border-color, #e2e8f0);
  background: var(--card-bg, #f8f9fa);
  cursor: pointer;
  transition: all 0.2s ease;
  text-decoration: none;
  display: block;
}

.problem-card:hover {
  border-color: var(--primary-color, #3b82f6);
  box-shadow: 0 4px 12px rgba(59, 130, 246, 0.15);
  transform: translateY(-2px);
}

/* 轮播图容器 - 放大卡片 */
.problem-carousel {
  position: relative;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.5rem;
  width: 100%;
  max-width: 550px;
}

.carousel-container {
  flex: 1;
  overflow: hidden;
  position: relative;
  height: 100px;
}

.carousel-track {
  display: flex;
  position: relative;
  transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  height: 100%;
}

.problem-card-carousel {
  min-width: 100%;
  height: 100%;
  padding: 0.75rem 1rem;
  border-radius: 0.625rem;
  border: 2px solid #e0e7ff;
  background: #ffffff;
  cursor: pointer;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  text-decoration: none;
  display: flex;
  flex-direction: column;
  justify-content: center;
  opacity: 0.3;
  transform: scale(0.92);
  pointer-events: none;
}

.problem-card-carousel.active {
  opacity: 1;
  transform: scale(1);
  pointer-events: auto;
  border-color: #3b82f6;
  background: #ffffff;
  box-shadow: 0 8px 24px rgba(59, 130, 246, 0.25);
}

.problem-card-carousel.prev,
.problem-card-carousel.next {
  opacity: 0.4;
  transform: scale(0.94);
  pointer-events: none;
}

/* 轮播按钮 - 白底蓝色 */
.carousel-btn {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  border: 2px solid #e0e7ff;
  background: #ffffff;
  color: #3b82f6;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s ease;
  flex-shrink: 0;
  z-index: 10;
}

.carousel-btn:hover {
  background: #3b82f6;
  color: white;
  border-color: #3b82f6;
  transform: scale(1.1);
}

.carousel-btn:active {
  transform: scale(0.95);
}

.carousel-btn:disabled {
  opacity: 0.3;
  cursor: not-allowed;
  pointer-events: none;
}

.carousel-btn svg {
  width: 18px;
  height: 18px;
}

/* 轮播指示器 - 蓝色系 */
.carousel-indicators {
  display: flex;
  justify-content: center;
  gap: 0.375rem;
  flex-shrink: 0;
}

.carousel-indicator {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  border: none;
  background: #cbd5e1;
  cursor: pointer;
  transition: all 0.3s ease;
  padding: 0;
}

.carousel-indicator:hover {
  background: #94a3b8;
  transform: scale(1.2);
}

.carousel-indicator.active {
  background: #3b82f6;
  width: 20px;
  border-radius: 3px;
}

.problem-card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.375rem;
  flex-shrink: 0;
}

.problem-id {
  font-size: 0.6875rem;
  font-weight: 600;
  color: #64748b;
  font-family: monospace;
}

.problem-status.ac {
  font-size: 0.6875rem;
  font-weight: 600;
  color: #10b981;
  background: rgba(16, 185, 129, 0.1);
  padding: 0.125rem 0.375rem;
  border-radius: 0.25rem;
}

.problem-card-title {
  font-size: 0.875rem;
  font-weight: 600;
  color: #1e40af;
  margin-bottom: 0.25rem;
  line-height: 1.3;
  overflow: hidden;
  text-overflow: ellipsis;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
}

.problem-card-time {
  font-size: 0.6875rem;
  color: #94a3b8;
  flex-shrink: 0;
}

.empty-problems {
  text-align: center;
  padding: 1rem;
  color: rgba(255, 255, 255, 0.7);
}

.empty-problems p {
  margin-bottom: 0.75rem;
  font-size: 0.875rem;
}

/* 热力图卡片 */
.heatmap-section {
  margin-bottom: 1.25rem;
}

.heatmap-card {
  background: var(--card-bg, #ffffff);
  border-radius: 0.75rem;
  padding: 1.25rem;
  border: 1px solid var(--border-color, #e2e8f0);
}

.heatmap-container {
  overflow-x: auto;
  margin-bottom: 0.875rem;
  padding: 0.375rem 0;
}

.heatmap-grid {
  display: flex;
  gap: 3px;
  min-width: fit-content;
}

.heatmap-week {
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.heatmap-day {
  width: 12px;
  height: 12px;
  border-radius: 2px;
  cursor: pointer;
  transition: all 0.2s ease;
}

.heatmap-day:hover {
  transform: scale(1.3);
  box-shadow: 0 0 0 2px var(--primary-color, #3b82f6);
}

/* 热力图颜色级别 */
.heatmap-day.level-0 { background-color: #ebedf0; }
.heatmap-day.level-1 { background-color: #9be9a8; }
.heatmap-day.level-2 { background-color: #40c463; }
.heatmap-day.level-3 { background-color: #30a14e; }
.heatmap-day.level-4 { background-color: #216e39; }

/* 深色模式 */
.dark .heatmap-day.level-0 { background-color: #161b22; }
.dark .heatmap-day.level-1 { background-color: #0e4429; }
.dark .heatmap-day.level-2 { background-color: #006d32; }
.dark .heatmap-day.level-3 { background-color: #26a641; }
.dark .heatmap-day.level-4 { background-color: #39d353; }

.heatmap-stats {
  display: flex;
  gap: 1.5rem;
  flex-wrap: wrap;
}

.stat-item {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.stat-label {
  font-size: 0.75rem;
  color: var(--text-secondary, #475569);
}

.stat-value {
  font-size: 1.0625rem;
  font-weight: 600;
  color: var(--text-primary, #0f172a);
}

/* 紧凑型30天热力图 */
.heatmap-compact-section {
  margin-bottom: 1.25rem;
}

.heatmap-compact-card {
  background: var(--card-bg, #ffffff);
  border-radius: 0.5rem;
  padding: 0.875rem 1rem;
  border: 1px solid var(--border-color, #e2e8f0);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
}

.heatmap-compact-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.75rem;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.heatmap-compact-title {
  display: flex;
  align-items: center;
  gap: 0.375rem;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-primary, #0f172a);
  margin: 0;
}

.heatmap-compact-title svg {
  flex-shrink: 0;
}

.heatmap-compact-stats {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  font-size: 0.75rem;
  color: var(--text-secondary, #64748b);
}

.compact-stat {
  white-space: nowrap;
}

.compact-stat strong {
  color: var(--primary-color, #3b82f6);
  font-weight: 600;
}

.compact-stat-divider {
  color: var(--border-color, #e2e8f0);
}

.heatmap-compact-grid {
  display: flex;
  gap: 2px;
  overflow-x: auto;
  padding: 0.25rem 0;
}

.heatmap-compact-cell {
  width: 10px;
  height: 10px;
  border-radius: 2px;
  cursor: pointer;
  transition: all 0.15s ease;
  flex-shrink: 0;
}

.heatmap-compact-cell:hover {
  transform: scale(1.4);
  box-shadow: 0 0 0 2px var(--primary-color, #3b82f6);
  z-index: 10;
}

/* 紧凑型热力图颜色级别 */
.heatmap-compact-cell.level-0 { background-color: #ebedf0; }
.heatmap-compact-cell.level-1 { background-color: #9be9a8; }
.heatmap-compact-cell.level-2 { background-color: #40c463; }
.heatmap-compact-cell.level-3 { background-color: #30a14e; }
.heatmap-compact-cell.level-4 { background-color: #216e39; }

/* 深色模式 */
.dark .heatmap-compact-card {
  background: var(--card-bg-dark, #1e293b);
  border-color: var(--border-color-dark, #334155);
}

.dark .heatmap-compact-title {
  color: var(--text-primary-dark, #f1f5f9);
}

.dark .heatmap-compact-stats {
  color: var(--text-secondary-dark, #94a3b8);
}

.dark .heatmap-compact-cell.level-0 { background-color: #161b22; }
.dark .heatmap-compact-cell.level-1 { background-color: #0e4429; }
.dark .heatmap-compact-cell.level-2 { background-color: #006d32; }
.dark .heatmap-compact-cell.level-3 { background-color: #26a641; }
.dark .heatmap-compact-cell.level-4 { background-color: #39d353; }

/* 侧边栏热力图样式 */
.heatmap-sidebar-grid {
  display: grid;
  grid-template-columns: repeat(10, 1fr);
  gap: 3px;
  margin-bottom: 0.75rem;
}

.heatmap-sidebar-cell {
  width: 100%;
  aspect-ratio: 1;
  border-radius: 2px;
  cursor: pointer;
  transition: all 0.15s ease;
}

.heatmap-sidebar-cell:hover {
  transform: scale(1.2);
  box-shadow: 0 0 0 2px var(--primary-color, #3b82f6);
  z-index: 10;
}

/* 侧边栏热力图颜色级别 */
.heatmap-sidebar-cell.level-0 { background-color: #ebedf0; }
.heatmap-sidebar-cell.level-1 { background-color: #9be9a8; }
.heatmap-sidebar-cell.level-2 { background-color: #40c463; }
.heatmap-sidebar-cell.level-3 { background-color: #30a14e; }
.heatmap-sidebar-cell.level-4 { background-color: #216e39; }

/* 深色模式 */
.dark .heatmap-sidebar-cell.level-0 { background-color: #161b22; }
.dark .heatmap-sidebar-cell.level-1 { background-color: #0e4429; }
.dark .heatmap-sidebar-cell.level-2 { background-color: #006d32; }
.dark .heatmap-sidebar-cell.level-3 { background-color: #26a641; }
.dark .heatmap-sidebar-cell.level-4 { background-color: #39d353; }

/* 侧边栏统计信息 */
.heatmap-sidebar-stats {
  display: flex;
  justify-content: space-between;
  gap: 0.5rem;
  padding-top: 0.5rem;
  border-top: 1px solid var(--border-color, #e2e8f0);
}

.sidebar-stat-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  flex: 1;
}

.sidebar-stat-label {
  font-size: 0.6875rem;
  color: var(--text-secondary, #64748b);
  margin-bottom: 0.125rem;
}

.sidebar-stat-value {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--primary-color, #3b82f6);
}

/* 深色模式 */
.dark .heatmap-sidebar-stats {
  border-top-color: var(--border-color-dark, #334155);
}

.dark .sidebar-stat-label {
  color: var(--text-secondary-dark, #94a3b8);
}

/* 响应式 */
@media (max-width: 768px) {
  .heatmap-compact-header {
    flex-direction: column;
    align-items: flex-start;
  }
  
  .heatmap-compact-stats {
    width: 100%;
    justify-content: space-between;
  }
  
  .heatmap-compact-grid {
    overflow-x: scroll;
    -webkit-overflow-scrolling: touch;
  }
  
  .heatmap-sidebar-grid {
    grid-template-columns: repeat(10, 1fr);
  }
}

/* Tooltip */
.heatmap-tooltip {
  position: fixed;
  background: rgba(0, 0, 0, 0.9);
  color: white;
  padding: 0.5rem 0.75rem;
  border-radius: 0.375rem;
  font-size: 0.75rem;
  pointer-events: none;
  z-index: 1000;
  transform: translate(-50%, -100%);
  margin-top: -8px;
  white-space: nowrap;
}

/* 签到模态框 */
.checkin-modal {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 9999;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.checkin-modal.active {
  opacity: 1;
}

.checkin-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(4px);
}

.checkin-content {
  position: relative;
  background: var(--card-bg, #ffffff);
  border-radius: 1rem;
  padding: 2rem;
  max-width: 400px;
  width: 90%;
  box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
  text-align: center;
  transform: scale(0.9);
  transition: transform 0.3s ease;
}

.checkin-modal.active .checkin-content {
  transform: scale(1);
}

.checkin-animation {
  margin-bottom: 1.5rem;
}

.checkin-icon {
  width: 80px;
  height: 80px;
  margin: 0 auto;
}

.checkmark {
  width: 80px;
  height: 80px;
  stroke-width: 3;
  stroke: #10b981;
  stroke-miterlimit: 10;
}

.checkmark-circle {
  stroke-dasharray: 166;
  stroke-dashoffset: 166;
  animation: stroke 0.6s cubic-bezier(0.65, 0, 0.45, 1) forwards;
}

.checkmark-check {
  transform-origin: 50% 50%;
  stroke-dasharray: 48;
  stroke-dashoffset: 48;
  animation: stroke 0.3s cubic-bezier(0.65, 0, 0.45, 1) 0.6s forwards;
}

@keyframes stroke {
  100% {
    stroke-dashoffset: 0;
  }
}

.checkin-title {
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--text-primary, #0f172a);
  margin-bottom: 1.5rem;
}

.checkin-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.checkin-stat {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.checkin-stat .stat-label {
  font-size: 0.75rem;
  color: var(--text-secondary, #475569);
}

.checkin-stat .stat-value {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--primary-color, #3b82f6);
}

/* 响应式 - 移动端 */
@media (max-width: 640px) {
  .checkin-stats {
    grid-template-columns: 1fr;
    gap: 0.75rem;
  }
  
  .heatmap-stats {
    flex-direction: column;
    gap: 1rem;
  }
  
  .carousel-btn {
    width: 32px;
    height: 32px;
  }
  
  .carousel-btn svg {
    width: 16px;
    height: 16px;
  }
  
  .problem-carousel {
    gap: 0.5rem;
  }
  
  .carousel-container {
    height: 90px;
  }
  
  .problem-card-carousel {
    padding: 0.625rem 0.75rem;
  }
  
  .problem-card-title {
    font-size: 0.8125rem;
  }
  
  .carousel-btn {
    width: 28px;
    height: 28px;
  }
  
  .carousel-btn svg {
    width: 16px;
    height: 16px;
  }
  
  .welcome-title {
    font-size: 1rem;
  }
  
  .section-subtitle {
    font-size: 0.6875rem;
  }
}

/* 尊重用户的动画偏好 */
@media (prefers-reduced-motion: reduce) {
  .checkin-modal.active,
  .checkin-content,
  .checkmark-circle,
  .checkmark-check,
  .problem-card,
  .heatmap-day {
    animation: none;
    transition: none;
  }
}

/* 深色模式适配 */
.dark .welcome-card,
.dark .heatmap-card,
.dark .checkin-content {
  background: var(--card-bg-dark, #1e293b);
  border-color: var(--border-color-dark, #334155);
}

/* 深色模式下保持透明背景 */
.dark .welcome-card {
  background: transparent;
  border: none;
}

.dark .welcome-title {
  color: rgba(255, 255, 255, 0.95);
}

.dark .welcome-text,
.dark .section-subtitle {
  color: rgba(255, 255, 255, 0.7);
}

.dark .checkin-title,
.dark .stat-value {
  color: var(--text-primary-dark, #f1f5f9);
}

.dark .problem-card {
  background: var(--card-bg-dark, #0f172a);
  border-color: var(--border-color-dark, #334155);
}

.dark .problem-card:hover {
  border-color: var(--primary-color, #60a5fa);
}

/* 深色模式下卡片保持深色背景 */
.dark .problem-card-carousel {
  background: #1e293b;
  border-color: #334155;
}

.dark .problem-card-carousel.active {
  border-color: #60a5fa;
  background: #1e293b;
  box-shadow: 0 8px 24px rgba(96, 165, 250, 0.3);
}

.dark .problem-card-title {
  color: #60a5fa;
}

.dark .problem-id,
.dark .problem-card-time {
  color: #94a3b8;
}

.dark .carousel-btn {
  background: #1e293b;
  border-color: #334155;
  color: #60a5fa;
}

.dark .carousel-btn:hover {
  background: #60a5fa;
  border-color: #60a5fa;
  color: white;
}

.dark .carousel-indicator {
  background: #475569;
}

.dark .carousel-indicator.active {
  background: #60a5fa;
}