/* ========== 凌云BOT 管理面板 ========== */
:root {
  --bg: #f5f5f5;
  --text: #393c41;
  --text-light: #6b7280;
  --brand: #185fa5;
  --brand-hover: #124b84;
  --border: #e5e7eb;
  --card-bg: #ffffff;
  --success: #10b981;
  --danger: #ef4444;
  --warning: #f59e0b;
  --sidebar-w: 240px;
  --radius: 8px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

body {
  font-family: 'Noto Sans SC', -apple-system, sans-serif;
  background: var(--bg);
  color: var(--text);
  display: flex;
  min-height: 100vh;
}

/* ===== 登录页 ===== */
.login-page {
  display: flex; justify-content: center; align-items: center;
  width: 100%; min-height: 100vh; padding: 20px;
}
.login-card {
  background: var(--card-bg);
  border-radius: 12px;
  padding: 48px 40px;
  width: 380px;
  box-shadow: 0 1px 3px rgba(0,0,0,.08);
}
.login-card h1 { font-size: 24px; margin-bottom: 8px; font-weight: 600; }
.login-card p { color: var(--text-light); margin-bottom: 32px; font-size: 14px; }
.login-card input {
  width: 100%; padding: 12px 16px;
  border: 1px solid var(--border); border-radius: var(--radius);
  font-size: 15px; margin-bottom: 16px; outline: none;
  transition: border-color .2s;
}
.login-card input:focus { border-color: var(--brand); }
.login-card button {
  width: 100%; padding: 12px;
  background: var(--brand); color: #fff;
  border: none; border-radius: var(--radius);
  font-size: 15px; cursor: pointer; font-weight: 500;
  transition: background .2s;
}
.login-card button:hover { background: var(--brand-hover); }
.login-error { color: var(--danger); font-size: 13px; margin-bottom: 12px; display: none; }
.login-error.show { display: block; }

/* ===== 侧边栏 ===== */
.sidebar {
  width: var(--sidebar-w); min-height: 100vh;
  background: var(--card-bg); border-right: 1px solid var(--border);
  display: flex; flex-direction: column;
  position: fixed; left: 0; top: 0; bottom: 0;
  z-index: 100;
}
.sidebar-brand {
  padding: 24px 20px 20px;
  font-size: 20px; font-weight: 700;
  color: var(--brand);
  border-bottom: 1px solid var(--border);
}
.sidebar-nav { flex: 1; padding: 12px 0; overflow-y: auto; }
.sidebar-nav a {
  display: flex; align-items: center; gap: 10px;
  padding: 10px 20px; font-size: 14px;
  color: var(--text-light); text-decoration: none;
  transition: all .15s; border-left: 3px solid transparent;
}
.sidebar-nav a:hover { background: #f9fafb; color: var(--text); }
.sidebar-nav a.active {
  background: #eff6ff; color: var(--brand);
  border-left-color: var(--brand); font-weight: 500;
}
.sidebar-nav a .icon { font-size: 18px; width: 22px; text-align: center; }
.sidebar-footer {
  padding: 16px 20px;
  border-top: 1px solid var(--border);
  font-size: 12px; color: var(--text-light);
}

/* ===== 主内容区 ===== */
.main {
  margin-left: var(--sidebar-w); flex: 1;
  padding: 32px 40px; min-height: 100vh;
}
.main-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 28px; }
.main-header h2 { font-size: 22px; font-weight: 600; }
.main-header .actions { display: flex; gap: 10px; }

/* 通用组件 */
.btn {
  padding: 8px 18px; border: none; border-radius: var(--radius);
  font-size: 14px; cursor: pointer; font-weight: 500;
  transition: all .15s; text-decoration: none; display: inline-block;
}
.btn-primary { background: var(--brand); color: #fff; }
.btn-primary:hover { background: var(--brand-hover); }
.btn-success { background: var(--success); color: #fff; }
.btn-success:hover { opacity: .9; }
.btn-danger { background: var(--danger); color: #fff; }
.btn-danger:hover { opacity: .9; }
.btn-outline { background: transparent; border: 1px solid var(--border); color: var(--text); }
.btn-outline:hover { background: #f9fafb; }
.btn-sm { padding: 5px 12px; font-size: 12px; }

.card {
  background: var(--card-bg); border-radius: var(--radius);
  padding: 24px; box-shadow: 0 1px 3px rgba(0,0,0,.05);
}
.card + .card { margin-top: 20px; }
.card h3 { font-size: 16px; font-weight: 600; margin-bottom: 16px; }
.card p { font-size: 14px; color: var(--text-light); line-height: 1.6; }

/* 状态卡片网格 */
.stats-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 16px; margin-bottom: 28px; }
.stat-card {
  background: var(--card-bg); border-radius: var(--radius);
  padding: 20px 24px; box-shadow: 0 1px 3px rgba(0,0,0,.05);
}
.stat-card .stat-label { font-size: 13px; color: var(--text-light); margin-bottom: 4px; }
.stat-card .stat-value { font-size: 28px; font-weight: 700; }
.stat-card .stat-desc { font-size: 12px; color: var(--text-light); margin-top: 4px; }
.stat-card.online .stat-value { color: var(--success); }
.stat-card.offline .stat-value { color: var(--danger); }

/* 表格 */
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: 14px; }
th { text-align: left; padding: 10px 12px; border-bottom: 2px solid var(--border); color: var(--text-light); font-weight: 500; font-size: 13px; }
td { padding: 10px 12px; border-bottom: 1px solid var(--border); }
tr:hover td { background: #f9fafb; }

/* 标签 */
.badge { display: inline-block; padding: 2px 8px; border-radius: 12px; font-size: 12px; font-weight: 500; }
.badge-success { background: #d1fae5; color: #065f46; }
.badge-danger { background: #fee2e2; color: #991b1b; }
.badge-warning { background: #fef3c7; color: #92400e; }

/* Toast */
.toast {
  position: fixed; bottom: 32px; right: 32px;
  padding: 12px 24px; border-radius: var(--radius);
  font-size: 14px; color: #fff; z-index: 9999;
  animation: slideIn .3s ease; max-width: 360px;
}
.toast-success { background: var(--success); }
.toast-error { background: var(--danger); }
@keyframes slideIn { from { transform: translateY(20px); opacity: 0; } to { transform: translateY(0); opacity: 1; } }

/* 二维码 */
.qr-box { text-align: center; padding: 24px; }
.qr-box img { max-width: 240px; border: 1px solid var(--border); border-radius: var(--radius); }

/* 搜索 */
.search-box { margin-bottom: 16px; }
.search-box input {
  width: 100%; padding: 10px 16px;
  border: 1px solid var(--border); border-radius: var(--radius);
  font-size: 14px; outline: none;
}
.search-box input:focus { border-color: var(--brand); }

/* 表单 */
.form-group { margin-bottom: 16px; }
.form-group label { display: block; font-size: 13px; color: var(--text-light); margin-bottom: 4px; font-weight: 500; }
.form-group input, .form-group select, .form-group textarea {
  width: 100%; padding: 10px 14px;
  border: 1px solid var(--border); border-radius: var(--radius);
  font-size: 14px; outline: none; font-family: inherit;
}
.form-group input:focus, .form-group textarea:focus { border-color: var(--brand); }
.form-group textarea { min-height: 120px; resize: vertical; }

/* 弹窗 */
.modal-overlay {
  position: fixed; inset: 0; background: rgba(0,0,0,.4);
  display: flex; justify-content: center; align-items: center; z-index: 1000;
  visibility: hidden; opacity: 0; transition: all .2s;
}
.modal-overlay.show { visibility: visible; opacity: 1; }
.modal {
  background: var(--card-bg); border-radius: 12px;
  padding: 32px; max-width: 600px; width: 90%;
  max-height: 80vh; overflow-y: auto;
}
.modal h3 { margin-bottom: 20px; font-size: 18px; }
.modal-actions { display: flex; gap: 10px; justify-content: flex-end; margin-top: 20px; }

/* 分页 */
.page { display: none; }
.page.active { display: block; }

/* 间距 */
.mt-10 { margin-top: 10px; }
.mt-20 { margin-top: 20px; }
.flex { display: flex; align-items: center; }
.gap-10 { gap: 10px; }
.flex-between { display: flex; justify-content: space-between; align-items: center; }

/* 响应式 */
@media (max-width: 768px) {
  .sidebar { display: none; }
  .main { margin-left: 0; padding: 20px; }
  .stats-grid { grid-template-columns: 1fr; }
}