/* ============================================================
   admin.css — 管理面板通用样式
   支持系统自动跟随日间/夜间模式
   版本：1.0
   ============================================================ */

/* ---------- CSS 变量（日间 / 夜间） ---------- */
:root {
  /* 品牌色 */
  --brand-1: #4eb9a0;
  --brand-2: #297897;
  --brand-3: #303ca4;

  /* 日间模式（默认） */
  --bg-primary: #f8f9fa;
  --bg-secondary: #ffffff;
  --bg-soft: #f1f3f5;
  --bg-glass: rgba(255, 255, 255, 0.75);
  --bg-input: #ffffff;
  --border-color: #d0d7de;
  --border-light: #e1e4e8;
  --text-primary: #24292f;
  --text-secondary: #57606a;
  --text-muted: #8b949e;
  --text-inverse: #ffffff;
  --shadow-color: rgba(0, 0, 0, 0.08);
  --shadow-heavy: rgba(0, 0, 0, 0.15);

  /* 状态色 */
  --color-success: #238636;
  --color-success-hover: #2ea043;
  --color-danger: #da3633;
  --color-danger-hover: #f85149;
  --color-warning: #d29922;
  --color-info: #58a6ff;
  --color-gold: #d4af37;

  /* 尺寸 */
  --radius: 8px;
  --radius-sm: 6px;
  --radius-lg: 16px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg-primary: #0d1117;
    --bg-secondary: #161b22;
    --bg-soft: #1c2128;
    --bg-glass: rgba(22, 27, 34, 0.72);
    --bg-input: #0d1117;
    --border-color: #30363d;
    --border-light: #21262d;
    --text-primary: #e6edf3;
    --text-secondary: #8b949e;
    --text-muted: #484f58;
    --text-inverse: #0d1117;
    --shadow-color: rgba(0, 0, 0, 0.5);
    --shadow-heavy: rgba(0, 0, 0, 0.7);
  }
}

/* ---------- 字体 ---------- */
@font-face {
  font-family: 'Sarasa UI SC';
  font-style: normal;
  font-weight: 400 700;
  src: url('/assets/fonts/Sarasa-Ui-VF-PropDigits-SC[wght].woff2') format('woff2');
  font-display: swap;
}
@font-face {
  font-family: 'Sarasa UI SC';
  font-style: italic;
  font-weight: 400 700;
  src: url('/assets/fonts/Sarasa-Ui-VF-PropDigits-SC-Italic[wght].woff2') format('woff2');
  font-display: swap;
}

/* ---------- 重置 & 基础 ---------- */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'Sarasa UI SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif !important;
  background: var(--bg-primary);
  color: var(--text-primary);
  padding: 1.5rem;
  display: flex;
  justify-content: center;
  min-height: 100vh;
  transition: background 0.25s, color 0.25s;
}

  /* ===== 行首标点压缩（管理面板） ===== */
:root {
  --text-indent-size: 2em;
}

p {
  text-indent: var(--text-indent-size);
  hanging-punctuation: first;
}

h1, h2, h3, h4, h5, h6,
li, .card p, .no-indent {
  text-indent: 0;
  hanging-punctuation: none;
}

/* ---------- 滚动条 ---------- */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border-color); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: var(--text-muted); }

/* ---------- 容器 ---------- */
.container {
  max-width: 1200px;
  width: 100%;
}

/* ---------- 顶部导航 ---------- */
.top-nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.8rem 1.5rem;
  margin-bottom: 1.5rem;
  padding-bottom: 0.8rem;
  border-bottom: 1px solid var(--border-color);
}
.top-nav .brand {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 600;
  color: var(--text-primary);
  font-size: 1.1rem;
}
.top-nav .brand img {
  height: 28px;
  width: auto;
  display: block;
}
.top-nav .brand span {
  color: var(--brand-1);
}
.top-nav .nav-links {
  display: flex;
  gap: 1.5rem;
  flex-wrap: wrap;
}
.top-nav .nav-links a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.95rem;
  transition: color 0.2s;
}
.top-nav .nav-links a:hover {
  color: var(--brand-1);
  text-decoration: underline;
}

/* ---------- 页面标题 ---------- */
.page-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin: 0.5rem 0 1rem 0;
}
.page-header h1 {
  font-size: 1.8rem;
  margin: 0;
}
.page-header .back-link {
  color: var(--color-info);
  text-decoration: none;
  font-size: 0.9rem;
}
.page-header .back-link:hover {
  text-decoration: underline;
}

/* ---------- 卡片 ---------- */
.card {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  padding: 1.5rem;
  margin-bottom: 1.5rem;
  transition: background 0.25s, border-color 0.25s;
}
.card h2 {
  font-size: 1.2rem;
  border-bottom: 1px solid var(--border-light);
  padding-bottom: 0.6rem;
  margin-bottom: 1.2rem;
}
.card h3 {
  font-size: 1rem;
  margin-bottom: 0.5rem;
}
.card.danger {
  border-color: var(--color-danger);
}
.card.danger h2 {
  color: var(--color-danger-hover);
}

/* ---------- 表格 ---------- */
table {
  width: 100%;
  border-collapse: collapse;
  background: var(--bg-secondary);
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border-color);
}
th, td {
  padding: 0.6rem 0.8rem;
  text-align: left;
  border-bottom: 1px solid var(--border-color);
  vertical-align: top;
}
th {
  background: var(--bg-primary);
  font-weight: 600;
  color: var(--text-secondary);
  font-size: 0.85rem;
  text-transform: uppercase;
}
td {
  font-size: 0.9rem;
}

/* ---------- 表单 ---------- */
.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
}
.form-group label {
  font-size: 0.85rem;
  color: var(--text-secondary);
  font-weight: 500;
}
.form-group label .required {
  color: var(--color-danger-hover);
  margin-left: 2px;
}
.form-group input,
.form-group select,
.form-group textarea {
  padding: 0.4rem 0.6rem;
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-size: 0.95rem;
  font-family: inherit;
  transition: border-color 0.2s, background 0.25s;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-info);
  box-shadow: 0 0 0 3px rgba(88, 166, 255, 0.15);
}
.form-group .hint {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: 0.2rem;
}
.form-row {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  align-items: end;
}
.form-row .form-group {
  flex: 1;
  min-width: 150px;
}

/* ---------- 按钮 ---------- */
.btn {
  padding: 0.4rem 1.2rem;
  border: none;
  border-radius: var(--radius-sm);
  font-weight: 600;
  cursor: pointer;
  transition: background 0.2s, transform 0.1s;
  font-size: 0.9rem;
  white-space: nowrap;
}
.btn:active:not(:disabled) { transform: scale(0.97); }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }

.btn-primary {
  background: var(--color-success);
  color: #fff;
}
.btn-primary:hover:not(:disabled) {
  background: var(--color-success-hover);
}

.btn-danger {
  background: var(--color-danger);
  color: #fff;
}
.btn-danger:hover:not(:disabled) {
  background: var(--color-danger-hover);
}

.btn-secondary {
  background: var(--bg-soft);
  color: var(--text-secondary);
  border: 1px solid var(--border-color);
}
.btn-secondary:hover:not(:disabled) {
  background: var(--border-color);
  color: var(--text-primary);
}

.btn-outline {
  background: transparent;
  color: var(--color-info);
  border: 1px solid var(--color-info);
}
.btn-outline:hover:not(:disabled) {
  background: var(--color-info);
  color: var(--text-inverse);
}

.btn-small {
  padding: 0.1rem 0.6rem;
  font-size: 0.75rem;
}

.btn-group {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

/* ---------- 统计卡片 ---------- */
.stats {
  display: flex;
  gap: 1rem;
  margin: 1.5rem 0;
  flex-wrap: wrap;
}
.stat-item {
  flex: 1;
  min-width: 100px;
  min-height: 100px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  padding: 0.8rem 1.2rem;
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  transition: border-color 0.2s;
}
.stat-item:hover {
  border-color: var(--color-info);
}
.stat-item .stat-number-bg {
  position: absolute;
  font-size: 5rem;
  font-weight: 900;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  opacity: 0.12;
  pointer-events: none;
  z-index: 0;
  white-space: nowrap;
  line-height: 1;
}
.stat-item .stat-content {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.2rem;
}
.stat-item .stat-label {
  font-size: 0.85rem;
  color: var(--text-secondary);
  font-weight: 500;
}
.stat-item .stat-number {
  font-size: 1.8rem;
  font-weight: 700;
  line-height: 1.2;
  color: var(--color-info);
}
.stat-item.pending .stat-number-bg.zero { color: var(--text-secondary); }
.stat-item.pending .stat-number-bg.positive { color: var(--color-danger); }
.stat-item.pending .stat-number.zero { color: var(--text-secondary); }
.stat-item.pending .stat-number.positive { color: var(--color-danger); }

/* ---------- 功能卡片网格 ---------- */
.card-grid {
  display: flex;
  justify-content: space-between;
  gap: 1.2rem;
  margin-top: 1.5rem;
  flex-wrap: wrap;
}
.card-link {
  flex: 1;
  min-width: 160px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  padding: 1.5rem 1rem;
  text-align: center;
  text-decoration: none;
  color: var(--text-primary);
  transition: border-color 0.25s, transform 0.2s, box-shadow 0.2s;
  display: flex;
  flex-direction: column;
  align-items: center;
  position: relative;
}
.card-link:hover {
  border-color: var(--brand-1);
  transform: translateY(-4px);
  box-shadow: 0 8px 20px var(--shadow-color);
}
.card-link .icon {
  font-size: 2.4rem;
  display: block;
  margin-bottom: 0.4rem;
}
.card-link .name {
  font-weight: 600;
  font-size: 1rem;
  display: block;
}
.card-link .desc {
  font-size: 0.8rem;
  color: var(--text-secondary);
  margin-top: 0.2rem;
  display: block;
}
.card-link .badge-count {
  position: absolute;
  top: -8px;
  right: -8px;
  background: rgba(210, 153, 34, 0.9);
  color: var(--bg-primary);
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0.15rem 0.5rem;
  border-radius: 20px;
  border: 1px solid var(--bg-primary);
  backdrop-filter: blur(4px);
}

/* ---------- 状态标签 ---------- */
.status-badge {
  display: inline-block;
  padding: 0.1rem 0.6rem;
  border-radius: 12px;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: capitalize;
}
.status-pending {
  background: var(--color-warning);
  color: var(--text-inverse);
}
.status-approved {
  background: var(--color-success);
  color: #fff;
}
.status-rejected {
  background: var(--color-danger);
  color: #fff;
}
.status-deleted {
  background: var(--text-muted);
  color: var(--text-inverse);
  text-decoration: line-through;
}

/* ---------- 类型徽章 ---------- */
.type-badge {
  display: inline-block;
  padding: 0.1rem 0.5rem;
  border-radius: 10px;
  font-size: 0.7rem;
  font-weight: 600;
}
.type-comment {
  background: var(--color-info);
  color: #fff;
}
.type-background {
  background: #8b5cf6;
  color: #fff;
}

/* ---------- 加载状态 ---------- */
.loading {
  text-align: center;
  padding: 2rem;
  color: var(--text-secondary);
}

/* ---------- 未授权 ---------- */
.unauthorized {
  text-align: center;
  padding: 3rem;
  background: var(--bg-secondary);
  border-radius: var(--radius);
  border: 1px solid var(--border-color);
  margin-top: 2rem;
}
.unauthorized h2 {
  color: var(--color-danger-hover);
}
.unauthorized p {
  color: var(--text-secondary);
}
.unauthorized a {
  color: var(--color-info);
  text-decoration: none;
}
.unauthorized a:hover {
  text-decoration: underline;
}

/* ---------- 筛选栏 ---------- */
.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem 1.2rem;
  margin-bottom: 1rem;
  align-items: center;
}
.filter-bar label {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.85rem;
  color: var(--text-secondary);
}
.filter-bar select,
.filter-bar input {
  padding: 0.25rem 0.5rem;
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-size: 0.9rem;
}
.filter-bar select:focus,
.filter-bar input:focus {
  outline: none;
  border-color: var(--color-info);
}
.search-box input {
  padding: 0.25rem 0.6rem;
  background: var(--bg-input);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-size: 0.9rem;
  width: 200px;
}
.search-box input:focus {
  outline: none;
  border-color: var(--color-info);
}

/* ---------- 分页 ---------- */
.pagination {
  display: flex;
  gap: 0.5rem;
  justify-content: center;
  margin-top: 1rem;
}
.pagination button {
  padding: 0.3rem 0.8rem;
  background: var(--border-color);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  cursor: pointer;
  transition: background 0.2s;
}
.pagination button:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}
.pagination button.active {
  background: var(--color-info);
  color: var(--text-inverse);
  border-color: var(--color-info);
}

/* ---------- 模态框 ---------- */
.modal-overlay {
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  padding: 1.5rem;
}
.modal-box {
  max-width: 500px;
  width: 100%;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  padding: 2rem;
}
.modal-box h3 {
  margin-top: 0;
  text-align: center;
  color: var(--text-primary);
  margin-bottom: 1rem;
}
.modal-box .modal-actions {
  display: flex;
  gap: 1rem;
  justify-content: center;
  margin-top: 1.5rem;
}
.modal-box .modal-actions .btn-confirm {
  background: var(--color-success);
  color: #fff;
  padding: 0.4rem 1.5rem;
  border: none;
  border-radius: var(--radius-sm);
  font-weight: 600;
  cursor: pointer;
}
.modal-box .modal-actions .btn-confirm:hover {
  background: var(--color-success-hover);
}
.modal-box .modal-actions .btn-cancel {
  background: var(--bg-soft);
  color: var(--text-secondary);
  border: 1px solid var(--border-color);
  padding: 0.4rem 1.5rem;
  border-radius: var(--radius-sm);
  font-weight: 600;
  cursor: pointer;
}
.modal-box .modal-actions .btn-cancel:hover {
  background: var(--border-color);
}

/* ---------- Toast ---------- */
.toast {
  position: fixed;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  padding: 0.6rem 1.5rem;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  z-index: 9999;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.3s, transform 0.3s;
  box-shadow: 0 4px 12px var(--shadow-color);
}
.toast.visible {
  opacity: 1;
  pointer-events: auto;
}
.toast-success {
  border-color: var(--color-success);
  color: var(--color-success);
}
.toast-error {
  border-color: var(--color-danger);
  color: var(--color-danger-hover);
}

/* ---------- 操作按钮（表格内） ---------- */
.actions button {
  margin-right: 0.3rem;
  padding: 0.1rem 0.6rem;
  border: none;
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
  cursor: pointer;
  transition: opacity 0.2s;
}
.actions button:hover { opacity: 0.8; }
.btn-approve {
  background: var(--color-success);
  color: #fff;
}
.btn-reject {
  background: var(--color-danger);
  color: #fff;
}
.btn-delete {
  background: var(--color-danger);
  color: #fff;
}
.btn-restore {
  background: var(--color-success);
  color: #fff;
}
.action-btn {
  padding: 0.15rem 0.5rem;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  font-size: 0.7rem;
  cursor: pointer;
  transition: background 0.2s, border-color 0.2s;
  background: transparent;
  color: var(--text-primary);
  white-space: nowrap;
}
.action-btn:hover { background: var(--border-color); }
.action-btn.grant {
  border-color: var(--color-info);
  color: var(--color-info);
}
.action-btn.grant:hover {
  background: var(--color-info);
  color: #fff;
}
.action-btn.revoke {
  border-color: var(--color-danger);
  color: var(--color-danger-hover);
}
.action-btn.revoke:hover {
  background: var(--color-danger);
  color: #fff;
}
.action-btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

/* ---------- 图片预览 ---------- */
.img-preview {
  max-width: 100px;
  max-height: 60px;
  border-radius: var(--radius-sm);
  cursor: pointer;
}

/* ---------- 用户名列可点击 ---------- */
.clickable-user {
  cursor: pointer;
  color: var(--color-info);
  text-decoration: none;
  word-break: break-word;
  white-space: normal;
}
.clickable-user:hover {
  text-decoration: underline;
}

/* ---------- 头衔标签 ---------- */
.title-tag {
  display: inline-block;
  padding: 0.02rem 0.4rem;
  border-radius: var(--radius-sm);
  font-size: 0.65rem;
  font-weight: 600;
  color: #fff;
  margin-right: 0.2rem;
  white-space: nowrap;
}
.user-titles {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

/* ---------- 发信人信息 ---------- */
.sender-info {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  padding: 0.8rem 1.2rem;
  margin-bottom: 1.5rem;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.5rem;
}
.sender-info .user {
  color: var(--text-primary);
  font-weight: 500;
}
.sender-info .address {
  color: var(--text-secondary);
  font-size: 0.9rem;
}
.sender-info .address span {
  color: var(--brand-1);
}

/* ---------- 消息提示 ---------- */
.message {
  margin-top: 1.2rem;
  padding: 0.8rem 1rem;
  border-radius: var(--radius-sm);
  border-left: 4px solid transparent;
  display: none;
}
.message.success {
  display: block;
  border-color: var(--color-success);
  background: rgba(46, 160, 67, 0.12);
  color: var(--color-success);
}
.message.error {
  display: block;
  border-color: var(--color-danger);
  background: rgba(248, 81, 73, 0.12);
  color: var(--color-danger-hover);
}
.message.loading {
  display: block;
  border-color: var(--color-info);
  background: rgba(88, 166, 255, 0.08);
  color: var(--color-info);
}

/* ---------- 响应式 ---------- */
@media (max-width: 768px) {
  body { padding: 1rem; }
  .card { padding: 1rem; }
  .stats { flex-direction: column; gap: 0.8rem; }
  .stat-item .stat-number-bg { font-size: 3.5rem; }
  .card-grid { flex-direction: column; gap: 0.8rem; }
  .filter-bar { flex-direction: column; align-items: stretch; }
  .search-box input { width: 100%; }
  .form-row { flex-direction: column; }
  .form-row .form-group { flex: unset; width: 100%; }

  table, thead, tbody, th, td, tr { display: block; }
  tr {
    margin-bottom: 1rem;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: 0.5rem;
  }
  td {
    border: none;
    padding: 0.2rem 0;
  }
  td:before {
    content: attr(data-label);
    font-weight: 600;
    color: var(--text-secondary);
    display: inline-block;
    width: 80px;
  }
  .actions { margin-top: 0.3rem; }
  .top-nav { flex-direction: column; align-items: stretch; gap: 0.5rem; }
  .top-nav .nav-links { justify-content: center; }
  .page-header { flex-direction: column; align-items: flex-start; gap: 0.5rem; }
  .modal-box { padding: 1.5rem; }
  .sender-info { flex-direction: column; align-items: center; }
}