/* Base styles */
:root {
  --bg-color: #f8f9fa; /* Light gray */
  --text-color: #495057; /* Darker gray */
  --primary-color: #71a7d6; /* Low-saturation light blue */
  --primary-darker: #5b7ba8;
  --secondary-color: #e9ecef; /* Lighter gray */
  --accent-color-1: #f4a261; /* Morandi orange-ish */
  --accent-color-2: #e76f51; /* Morandi red-ish */
  --border-color: #dee2e6;
  --error-color: #dc3545;
  --success-color: #28a745;
  --shadow-color: rgba(0, 0, 0, 0.1);
  --shadow-hover: rgba(0, 0, 0, 0.18);
  --card-bg: #ffffff;
  --transition-speed: 0.3s;
  
  /* 圆角半径统一 */
  --border-radius-sm: 8px;
  --border-radius-md: 16px;
  --border-radius-lg: 24px;
  --border-radius-xl: 32px;
}

/* 优化基础排版 */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  margin: 0;
  background-color: var(--bg-color);
  color: var(--text-color);
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  line-height: 1.6;
  padding: 0 8px;
}

/* 优化标题和文本样式 */
h1, h2, h3, h4, h5, h6 {
  font-weight: 600;
  line-height: 1.3;
  color: var(--primary-darker);
}

p {
  margin-bottom: 1rem;
}

/* 美化链接样式 */
a {
  color: var(--primary-color);
  text-decoration: none;
  transition: color var(--transition-speed) ease;
}

a:hover {
  color: var(--primary-darker);
}

/* 头部和底部优化 */
header, footer {
  background-color: var(--secondary-color);
  width: calc(100% - 16px);
  max-width: 1200px;
  margin: 1rem auto 0;
  padding: 1rem 2rem;
  text-align: center;
  border-radius: var(--border-radius-md);
  box-shadow: 0 4px 12px var(--shadow-color);
  position: relative;
}

footer {
  margin: 0 auto 1rem;
  padding: 1rem;
  font-size: 0.85rem;
  opacity: 0.9;
}

/* 优化头部布局 */
header {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  transition: all var(--transition-speed) ease;
}

header h1 {
  margin: 0;
  font-size: 2rem;
  font-weight: 700;
  background: linear-gradient(135deg, var(--primary-color), var(--primary-darker));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  flex: 1;
  min-width: 180px;
  text-align: left;
}

header p {
  margin: 0;
  flex: 2;
  text-align: center;
  font-size: 1rem;
  font-weight: 500;
  color: var(--primary-darker);
}

/* 用户信息区域优化 - 重构以解决布局不协调问题 */
#user-info {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  flex-wrap: nowrap;
  background-color: rgba(113, 167, 214, 0.15); /* 使用主色调的透明版本以更协调 */
  -webkit-backdrop-filter: blur(5px);
  backdrop-filter: blur(5px);
  padding: 0.75rem 1.25rem;
  border-radius: var(--border-radius-lg);
  box-shadow: 0 2px 8px var(--shadow-color);
  min-width: 200px;
  flex: 0 0 auto; /* 不拉伸不收缩 */
  margin-left: auto;
  transition: all var(--transition-speed) ease;
  border: 1px solid rgba(113, 167, 214, 0.2); /* 添加微妙边框 */
}

/* 用户ID标签样式 */
#user-info::before {
  content: "已登录用户ID: ";
  font-size: 0.9rem;
  color: var(--primary-darker);
  white-space: nowrap;
  margin-right: 0.5rem;
}

/* 用户ID显示区域 */
#user-id-display {
  font-weight: 600;
  color: var(--primary-darker);
  margin-right: 1rem; /* 与按钮区域保持一定间距 */
  padding: 0.2rem 0.5rem;
  background-color: rgba(255, 255, 255, 0.5);
  border-radius: var(--border-radius-sm);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 150px; /* 增加宽度 */
  display: inline-block;
}

/* 用户菜单按钮区域 */
#user-info .user-buttons {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-left: auto; /* 自动调整与ID部分的间距 */
}

/* 撤销投票和退出登录按钮样式 */
#revoke-all-votes-button,
#logout-button {
  padding: 0.45rem 0.9rem;
  font-size: 0.85rem;
  font-weight: 500;
  border-radius: var(--border-radius-lg);
  transition: all var(--transition-speed) ease;
  box-shadow: 0 2px 4px var(--shadow-color);
  border: none;
  color: white;
  white-space: nowrap;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

/* 撤销投票按钮样式 */
#revoke-all-votes-button {
  background-color: var(--accent-color-1);
  background-image: linear-gradient(to bottom, var(--accent-color-1), #e9905a);
}

#revoke-all-votes-button:hover {
  background-image: linear-gradient(to bottom, #e9905a, #d8894a);
  transform: translateY(-2px);
  box-shadow: 0 4px 8px var(--shadow-hover);
}

/* 退出登录按钮样式 */
#logout-button {
  background-color: var(--accent-color-2);
  background-image: linear-gradient(to bottom, var(--accent-color-2), #d6624a);
}

#logout-button:hover {
  background-image: linear-gradient(to bottom, #d6624a, #c75a41);
  transform: translateY(-2px);
  box-shadow: 0 4px 8px var(--shadow-hover);
}

/* 优化主内容区域 */
main {
  flex-grow: 1;
  width: 100%;
  max-width: 1200px;
  margin: 1.5rem auto;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

/* 美化区块样式 */
section {
  background-color: var(--card-bg);
  padding: 2rem;
  border-radius: var(--border-radius-md);
  box-shadow: 0 4px 16px var(--shadow-color);
  transition: transform var(--transition-speed) ease, box-shadow var(--transition-speed) ease;
}

section:hover {
  box-shadow: 0 6px 20px var(--shadow-hover);
}

h2 {
  margin-top: 0;
  margin-bottom: 1.5rem;
  padding-bottom: 0.75rem;
  border-bottom: 2px solid var(--border-color);
  font-weight: 600;
  letter-spacing: 0.5px;
  position: relative;
}

h2::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 80px;
  height: 2px;
  background-color: var(--primary-color);
}

/* 表单元素和按钮美化 */
input[type="number"], 
input[type="text"], 
input[type="password"], 
input[type="file"] {
  width: 100%;
  padding: 0.8rem 1rem;
  border: 2px solid var(--border-color);
  border-radius: var(--border-radius-md);
  font-size: 1rem;
  transition: all var(--transition-speed) ease;
  background-color: white;
}

input[type="number"]:focus, 
input[type="text"]:focus, 
input[type="password"]:focus, 
input[type="file"]:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 3px rgba(113, 167, 214, 0.2);
}

button {
  padding: 0.8rem 1.5rem;
  background-color: var(--primary-color);
  color: white;
  border: none;
  border-radius: var(--border-radius-lg);
  cursor: pointer;
  font-size: 1rem;
  font-weight: 500;
  transition: all var(--transition-speed) ease;
  box-shadow: 0 2px 8px var(--shadow-color);
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

button:hover:not(:disabled) {
  background-color: var(--primary-darker);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px var(--shadow-hover);
}

button:active:not(:disabled) {
  transform: translateY(0);
}

button:disabled {
  background-color: var(--secondary-color);
  color: #aaa;
  cursor: not-allowed;
  box-shadow: none;
}

/* 登录区块优化 */
#login-section {
  max-width: 500px;
  margin: 0 auto;
  text-align: center;
  padding: 2.5rem;
  border-radius: var(--border-radius-lg);
  background: linear-gradient(145deg, #ffffff, #f8f9fa);
}

#login-section h2 {
  margin-bottom: 2rem;
}

#login-section p {
  margin-bottom: 1.5rem;
  color: var(--text-color);
}

#login-section input {
  margin-bottom: 1.2rem;
  transition: transform var(--transition-speed) ease;
}

#login-section input:focus {
  transform: scale(1.02);
}

#login-section button {
  width: 100%;
  margin-top: 1rem;
  padding: 1rem;
  font-size: 1.1rem;
}

#admin-login-toggle {
  margin-top: 2rem;
}

#admin-login-toggle button {
  background-color: transparent;
  border: 1px solid var(--border-color);
  color: var(--text-color);
  box-shadow: none;
  font-size: 0.9rem;
  padding: 0.5rem 1rem;
}

#admin-login-toggle button:hover {
  background-color: var(--secondary-color);
  border-color: var(--primary-color);
}

#admin-login-section {
  margin-top: 2rem;
  padding-top: 2rem;
  border-top: 1px dashed var(--border-color);
}

#admin-login-section h3 {
  margin-bottom: 1.5rem;
  font-size: 1.2rem;
}

/* 画廊控制优化 */
#gallery-controls {
  margin-bottom: 2rem;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: 1rem;
  background-color: rgba(255, 255, 255, 0.7);
  padding: 1rem;
  border-radius: var(--border-radius-md);
  box-shadow: 0 2px 8px var(--shadow-color);
}

#gallery-controls label {
  font-weight: 500;
  color: var(--primary-darker);
}

#gallery-controls select {
  padding: 0.5rem 1rem;
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-sm);
  background-color: white;
  cursor: pointer;
}

#apply-sort {
  padding: 0.5rem 1.5rem;
  font-size: 0.9rem;
}

/* 画廊网格优化 */
#gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 2rem;
  margin-top: 2rem;
}

.gallery-item {
  background-color: white;
  border-radius: var(--border-radius-md);
  overflow: hidden;
  box-shadow: 0 3px 15px var(--shadow-color);
  transition: all var(--transition-speed) ease;
  display: flex;
  flex-direction: column;
  height: 100%;
}

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

.gallery-item img {
  display: block;
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  transition: transform var(--transition-speed) ease;
}

.gallery-item:hover img {
  transform: scale(1.03);
}

.image-info {
  padding: 1.5rem;
  flex-grow: 1;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  background-color: white;
}

.image-info p {
  margin: 0.3rem 0;
  line-height: 1.4;
}

.image-info .uploader {
  color: var(--primary-darker);
  font-weight: 600;
  font-size: 0.95rem;
}

.image-info .description {
  font-style: italic;
  color: #666;
  margin-bottom: 0.8rem;
}

/* 完善图片信息卡片中的按钮组样式 - 优化投票和下载按钮在同一行 */
.image-info .button-group {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 1rem;
  justify-content: flex-start;
  flex-direction: row;
}

.image-info button, 
.image-info a.download-button {
  font-size: 0.85rem;
  padding: 0.5rem 1rem;
  margin: 0;
  flex: 0 0 auto;
  white-space: nowrap;
}

/* 修复投票按钮和下载按钮布局 */
.vote-button, a.download-button {
  display: inline-flex;
  align-items: center;
  margin-right: 0.5rem !important;
}

.vote-button {
  background-color: var(--primary-color);
}

.vote-button:hover {
  background-color: var(--primary-darker);
}

.delete-button {
  background-color: var(--error-color);
}

.delete-button:hover {
  background-color: #b02a37;
}

.revoke-vote-button {
  background-color: var(--accent-color-1);
}

.revoke-vote-button:hover {
  background-color: #d8894a;
}

/* 上传部分优化 */
#upload-section {
  text-align: center;
}

#upload-section input[type="file"] {
  margin-bottom: 1rem;
}

#upload-status {
  margin-top: 1rem;
  padding: 0.75rem;
  border-radius: var(--border-radius-md);
  background-color: rgba(255, 255, 255, 0.7);
  transition: all var(--transition-speed) ease;
}

/* 匿名上传选项样式 */
#anonymous-upload-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1rem;
  margin-left: 1rem;
}

#anonymous-upload-toggle label {
  margin-right: 0.5rem;
  font-weight: 500;
  color: var(--text-color);
}

#anonymous-upload-checkbox {
  width: 1.2rem;
  height: 1.2rem;
  cursor: pointer;
}

/* 将匿名上传选项放在上传按钮侧面 */
#upload-section input[type="file"] + #anonymous-upload-toggle {
  margin-left: 0;
  margin-bottom: 0;
  vertical-align: middle;
}

#upload-section input[type="file"] + #anonymous-upload-toggle + button {
  margin-left: 1rem;
  vertical-align: middle;
}

/* 裁剪模态框美化 */
.modal {
  position: fixed;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.75);
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 1000;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-speed) ease, visibility var(--transition-speed) ease;
}

.modal:not(.hidden) {
  opacity: 1;
  visibility: visible;
}

.modal-content {
  background-color: white;
  padding: 2.5rem;
  border-radius: var(--border-radius-lg);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
  max-width: 90%;
  max-height: 90vh;
  overflow-y: auto;
  text-align: center;
  transform: scale(0.95);
  transition: transform var(--transition-speed) ease;
}

.modal:not(.hidden) .modal-content {
  transform: scale(1);
}

.img-container {
  margin-bottom: 1.5rem;
  max-height: 60vh;
  overflow: hidden;
  border-radius: var(--border-radius-md);
  box-shadow: 0 4px 16px var(--shadow-color);
}

#image-to-crop {
  display: block;
  max-width: 100%;
}

.modal-actions {
  margin-top: 2rem;
  display: flex;
  justify-content: center;
  gap: 1rem;
}

.modal-actions button {
  min-width: 120px;
}

#cancel-crop-button {
  background-color: var(--text-color);
}

#cancel-crop-button:hover {
  background-color: #3d4246;
}

/* 工具类 */
.hidden {
  display: none !important;
}

.error-message {
  color: var(--error-color);
  font-weight: 500;
  padding: 0.5rem 1rem;
  border-radius: var(--border-radius-md);
  background-color: rgba(220, 53, 69, 0.1);
  margin: 1rem 0;
}

.status-message {
  color: var(--success-color);
  font-weight: 500;
  padding: 0.5rem 1rem;
  border-radius: var(--border-radius-md);
  background-color: rgba(40, 167, 69, 0.1);
  margin: 1rem 0;
}

/* 响应式优化 */
@media (max-width: 768px) {
  header {
    padding: 1rem;
    flex-direction: column;
  }
  
  header h1 {
    text-align: center;
    margin-bottom: 0.5rem;
    font-size: 1.7rem;
  }
  
  header p {
    margin-bottom: 0.5rem;
  }
  
  #user-info {
    max-width: none;
    width: 100%;
    justify-content: center; /* 中心对齐 */
    padding: 1rem;
    margin: 0.5rem 0;
    flex-wrap: wrap;
  }
  
  #user-info::before {
    margin-right: 0.3rem;
  }
  
  #user-id-display {
    max-width: 100px;
    margin-right: 0.5rem;
  }
  
  #user-info .user-buttons {
    gap: 0.5rem;
    margin-left: 0;
    margin-top: 0.5rem;
  }
  
  section {
    padding: 1.5rem;
  }
  
  #gallery-grid {
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 1.5rem;
  }
  
  .modal-content {
    padding: 1.5rem;
    max-width: 95%;
  }
  
  .image-info {
    padding: 1rem;
  }
  
  button, input[type="number"], input[type="file"] {
    font-size: 0.95rem;
  }
}

@media (max-width: 480px) {
  html {
    font-size: 14px;
  }
  
  header h1 {
    font-size: 1.5rem;
  }
  
  #user-info {
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem;
  }
  
  #user-info::before {
    display: block;
    margin-bottom: 0.3rem;
    margin-right: 0;
    text-align: center;
  }
  
  #user-id-display {
    margin-right: 0;
    margin-bottom: 0.5rem;
    text-align: center;
    max-width: 90%;
  }
  
  #user-info .user-buttons {
    justify-content: center;
    width: 100%;
    margin-left: 0;
    gap: 1rem;
  }
  
  #gallery-grid {
    grid-template-columns: 1fr;
  }
  
  .modal-actions {
    flex-direction: column;
  }
  
  .modal-actions button {
    width: 100%;
  }
  
  .image-info .button-group {
    justify-content: center;
  }
}