/* iOS 26风格毛玻璃UI样式 */
:root {
  --background-color: #f5f5f7;
  --card-background: rgba(255, 255, 255, 0.7);
  --text-color: #1d1d1f;
  --secondary-text-color: #6e6e73;
  --accent-color: #007aff;
  --border-color: rgba(0, 0, 0, 0.15);
  --shadow-color: rgba(0, 0, 0, 0.12);
  --success-color: #34c759;
  --warning-color: #ff9500;
  --danger-color: #ff3b30;
  --light-gray: #f2f2f7;
  --medium-gray: #e5e5ea;
  --dark-gray: #8e8e93;
}

@import url('background.css');

body {
  margin: 0;
  padding: 0;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
  background-color: var(--background-color);
  color: var(--text-color);
  min-height: 100vh;
}

/* 毛玻璃效果容器 */
.glass-container {
  background: var(--card-background);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-radius: 15px;
  border: 1px solid var(--border-color);
  box-shadow: 0 8px 30px var(--shadow-color);
  padding: 20px;
  margin: 20px;
}

/* 导航栏 */
.navbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 15px 20px;
  background: rgba(255, 255, 255, 0.7);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border-color);
  position: sticky;
  top: 0;
  z-index: 100;
}

.nav-title {
  font-size: 20px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
}

.nav-title:hover {
  transform: scale(1.05);
}

.nav-actions {
  display: flex;
  gap: 10px;
}

.nav-button {
  background: var(--accent-color);
  color: white;
  border: none;
  border-radius: 10px;
  padding: 8px 16px;
  font-size: 16px;
  cursor: pointer;
  transition: all 0.2s ease;
}

.nav-button:hover {
  opacity: 0.9;
  transform: scale(1.05);
}

/* 改进的卡片设计 */
.glass-container {
  background: var(--card-background);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-radius: 15px;
  border: 1px solid var(--border-color);
  box-shadow: 0 8px 30px var(--shadow-color);
  padding: 25px;
  margin: 20px 0;
  transition: all 0.3s ease;
}

.glass-container:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 40px var(--shadow-color);
}

/* 改进的活动卡片 */
.activity-item {
  background: var(--card-background);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-radius: 15px;
  border: 1px solid var(--border-color);
  padding: 20px;
  margin-bottom: 15px;
  transition: all 0.2s ease;
  cursor: pointer;
}

.activity-item:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 25px var(--shadow-color);
}

/* 改进的按钮样式 */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 20px;
  border-radius: 12px;
  border: none;
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.25s ease;
  text-align: center;
  text-decoration: none;
  margin: 8px 0;
  min-width: 100px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}

.btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.12);
}

.btn:active {
  transform: translateY(0);
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.1);
}

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

.btn-primary:hover {
  background: rgba(0, 122, 255, 0.9);
}

.btn-secondary {
  background: var(--light-gray);
  color: var(--text-color);
}

.btn-secondary:hover {
  background: var(--medium-gray);
}

.btn-small {
  padding: 8px 16px;
  font-size: 14px;
  min-width: 80px;
  border-radius: 8px;
}

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

.btn-success:hover {
  background: rgba(52, 199, 89, 0.9);
}

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

.btn-warning:hover {
  background: rgba(255, 149, 0, 0.9);
}

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

.btn-danger:hover {
  background: rgba(255, 59, 48, 0.9);
}

.btn-disabled {
  background: var(--medium-gray);
  color: var(--dark-gray);
  cursor: not-allowed;
  opacity: 0.6;
}

.btn-disabled:hover {
  transform: none;
  box-shadow: none;
  background: var(--medium-gray);
}

/* 改进的结果表格 */
.results-table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 20px;
  background: rgba(255, 255, 255, 0.8);
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.results-table th,
.results-table td {
  text-align: left;
  padding: 16px 20px;
  border-bottom: 1px solid var(--border-color);
  font-size: 15px;
}

.results-table th {
  background: rgba(255, 255, 255, 0.9);
  font-weight: 600;
  color: var(--secondary-text-color);
  text-transform: uppercase;
  font-size: 13px;
  letter-spacing: 0.5px;
}

.results-table td {
  color: var(--text-color);
}

.results-table tr {
  transition: all 0.2s ease;
}

.results-table tr:hover {
  background: rgba(0, 122, 255, 0.03);
}

.results-table tr:last-child td {
  border-bottom: none;
}

.results-table tr.winner-row {
  background: rgba(52, 199, 89, 0.08);
}

.results-table tr.top-three {
  background: rgba(0, 122, 255, 0.05);
}

/* 主要内容区域 */
.main-content {
  max-width: 850px;
  margin: 0 auto;
  padding: 25px;
}

/* 标题 */
.page-title {
  text-align: center;
  font-size: 32px;
  font-weight: 700;
  margin-bottom: 35px;
  color: var(--text-color);
  letter-spacing: -0.5px;
}

/* 表单卡片 */
.form-card {
  margin-bottom: 35px;
}

.card-title {
  font-size: 24px;
  font-weight: 600;
  margin-bottom: 20px;
  color: var(--text-color);
  letter-spacing: -0.3px;
}

/* 输入组 */
.input-group {
  margin-bottom: 25px;
  position: relative;
}

.input-label {
  display: block;
  font-size: 16px;
  margin-bottom: 10px;
  color: var(--text-color);
  font-weight: 500;
}

.input-field {
  width: 100%;
  padding: 16px 20px;
  border-radius: 14px;
  border: 1px solid var(--border-color);
  background: rgba(255, 255, 255, 0.9);
  font-size: 16px;
  box-sizing: border-box;
  transition: all 0.3s ease;
  color: var(--text-color);
  font-family: inherit;
}

.input-field::placeholder {
  color: var(--dark-gray);
}

.input-field:focus {
  outline: none;
  border-color: var(--accent-color);
  box-shadow: 0 0 0 3px rgba(0, 122, 255, 0.15);
  transform: translateY(-1px);
}

/* 文本域样式 */
textarea.input-field {
  resize: vertical;
  min-height: 100px;
  line-height: 1.5;
}

/* 表单提交按钮 */
.form-submit {
  display: flex;
  justify-content: center;
  margin-top: 30px;
}

/* 活动列表样式 */
.activities-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 16px;
}

.activity-item {
  background: var(--card-background);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-radius: 16px;
  border: 1px solid var(--border-color);
  padding: 22px;
  transition: all 0.3s ease;
  cursor: pointer;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
}

.activity-item:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
  border-color: var(--accent-color);
}

.activity-name {
  font-size: 20px;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--text-color);
}

.activity-description {
  color: var(--secondary-text-color);
  margin-bottom: 12px;
  font-size: 15px;
  line-height: 1.5;
}

.activity-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 14px;
  color: var(--dark-gray);
}

/* 排名和数值样式 */
.rank-cell {
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 8px;
}

.number-cell {
  font-weight: 700;
  font-size: 18px;
  text-align: center;
  color: var(--accent-color);
}

.medal {
  font-size: 20px;
}

.winner-badge {
  background: var(--success-color);
  color: white;
  padding: 6px 12px;
  border-radius: 12px;
  font-size: 12px;
  font-weight: 600;
  margin-left: 12px;
}

/* 状态标签样式 */
.status-badge {
  padding: 6px 14px;
  border-radius: 20px;
  font-size: 13px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.status-badge.active {
  background: rgba(52, 199, 89, 0.2);
  color: var(--success-color);
}

.status-badge.ended {
  background: rgba(255, 59, 48, 0.2);
  color: var(--danger-color);
}

/* 统计信息样式 */
.results-stats {
  display: flex;
  gap: 24px;
  margin-bottom: 24px;
  padding: 16px 20px;
  background: rgba(0, 122, 255, 0.1);
  border-radius: 12px;
  flex-wrap: wrap;
}

.stat-item {
  font-size: 16px;
  color: var(--secondary-text-color);
  display: flex;
  align-items: center;
  gap: 8px;
}

.stat-item strong {
  color: var(--text-color);
  font-weight: 600;
  font-size: 18px;
}

/* 错误信息样式 */
.error-message {
  background: rgba(255, 59, 48, 0.15);
  color: var(--danger-color);
  padding: 16px 20px;
  border-radius: 12px;
  margin-bottom: 24px;
  text-align: center;
  font-weight: 600;
  border: 1px solid rgba(255, 59, 48, 0.3);
  box-shadow: 0 2px 8px rgba(255, 59, 48, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

.error-message::before {
  content: '⚠️';
  font-size: 18px;
}

/* 成功信息样式 */
.success-message {
  background: rgba(52, 199, 89, 0.15);
  color: var(--success-color);
  padding: 16px 20px;
  border-radius: 12px;
  margin-bottom: 24px;
  text-align: center;
  font-weight: 600;
  border: 1px solid rgba(52, 199, 89, 0.3);
  box-shadow: 0 2px 8px rgba(52, 199, 89, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

.success-message::before {
  content: '✅';
  font-size: 18px;
}

/* 响应式设计 */
@media (max-width: 768px) {
  .navbar {
    padding: 10px 15px;
  }
  
  .nav-title {
    font-size: 18px;
  }
  
  .nav-button {
    padding: 6px 12px;
    font-size: 14px;
  }
  
  .glass-container {
    margin: 10px;
    padding: 20px;
  }
  
  .page-title {
    font-size: 24px;
    margin-bottom: 25px;
  }
  
  .results-table {
    display: block;
    overflow-x: auto;
    white-space: nowrap;
  }
  
  .results-table th,
  .results-table td {
    padding: 12px 16px;
    font-size: 14px;
  }
  
  .results-stats {
    flex-direction: column;
    gap: 12px;
  }
  
  .input-field {
    padding: 14px 16px;
    font-size: 15px;
  }
  
  .btn {
    padding: 10px 16px;
    font-size: 15px;
  }
}

/* 按钮 */
.btn {
  display: block;
  width: 100%;
  padding: 16px;
  border-radius: 12px;
  border: none;
  font-size: 18px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
  text-align: center;
  text-decoration: none;
}

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

.btn-primary:hover {
  opacity: 0.9;
  transform: translateY(-2px);
}

.btn-secondary {
  background: rgba(142, 142, 147, 0.1);
  color: var(--text-color);
  margin-top: 10px;
}

.btn-secondary:hover {
  background: rgba(142, 142, 147, 0.2);
}

/* 警告按钮 */
.btn-warning {
  background: #ff9500;
  color: white;
  width: auto;
  display: inline-block;
  padding: 12px 20px;
}

.btn-warning:hover {
  opacity: 0.9;
  transform: translateY(-2px);
}

/* 危险按钮 */
.btn-danger {
  background: #ff3b30;
  color: white;
  width: auto;
  display: inline-block;
  padding: 12px 20px;
}

.btn-danger:hover {
  opacity: 0.9;
  transform: translateY(-2px);
}

/* 禁用按钮 */
.btn-disabled {
  background: rgba(142, 142, 147, 0.1);
  color: var(--secondary-text-color);
  width: auto;
  display: inline-block;
  padding: 12px 20px;
  cursor: not-allowed;
}

/* 活动列表 */
.activities-list {
  list-style: none;
  padding: 0;
}

.activity-item {
  background: var(--card-background);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-radius: 15px;
  border: 1px solid var(--border-color);
  padding: 20px;
  margin-bottom: 15px;
  transition: all 0.2s ease;
  cursor: pointer;
}

.activity-item:hover {
  transform: translateY(-3px);
  box-shadow: 0 5px 15px var(--shadow-color);
}

.activity-name {
  font-size: 20px;
  font-weight: 600;
  margin-bottom: 5px;
}

.activity-description {
  color: var(--secondary-text-color);
  margin-bottom: 10px;
}

.activity-meta {
  font-size: 14px;
  color: var(--secondary-text-color);
}

/* 结果表格 */
.results-table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 20px;
}

.results-table th {
  text-align: left;
  padding: 12px 15px;
  border-bottom: 1px solid var(--border-color);
  font-weight: 600;
}

.results-table td {
  padding: 12px 15px;
  border-bottom: 1px solid var(--border-color);
}

.results-table tr:last-child td {
  border-bottom: none;
}

.number-cell {
  font-weight: 700;
  font-size: 18px;
  text-align: center;
}

.winner-row {
  background: rgba(52, 199, 89, 0.1);
}

.winner-badge {
  background: #34c759;
  color: white;
  padding: 4px 8px;
  border-radius: 8px;
  font-size: 12px;
  font-weight: 600;
}

/* 响应式设计 */
@media (max-width: 768px) {
  .glass-container {
    margin: 10px;
    padding: 15px;
  }
  
  .main-content {
    padding: 10px;
  }
  
  .page-title {
    font-size: 24px;
  }
  
  .input-field {
    padding: 12px;
  }
  
  .btn {
    padding: 14px;
  }
}