/* ============================================================
   后台管理样式
   ============================================================ */

/* 登录页 */
.login-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}
.login-card {
  width: 100%;
  max-width: 380px;
  padding: 38px 34px;
  border-radius: 20px;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  -webkit-backdrop-filter: blur(18px) saturate(160%);
  backdrop-filter: blur(18px) saturate(160%);
  box-shadow: var(--glass-shadow);
}
.login-title {
  font-family: var(--font-display);
  font-size: 24px;
  font-weight: 700;
  margin: 0 0 6px;
  text-align: center;
}
.login-sub {
  text-align: center;
  color: var(--text-dim);
  font-size: 13px;
  margin-bottom: 26px;
}
.login-msg {
  color: var(--danger);
  font-size: 13px;
  margin-bottom: 12px;
  min-height: 18px;
  text-align: center;
}
.login-card .btn { width: 100%; justify-content: center; margin-top: 4px; }

/* 后台布局 */
.admin-layout { display: flex; min-height: 100vh; }
.sidebar {
  width: 220px;
  flex-shrink: 0;
  padding: 24px 14px;
  background: rgba(10, 14, 39, 0.55);
  border-right: 1px solid var(--glass-border);
  -webkit-backdrop-filter: blur(16px);
  backdrop-filter: blur(16px);
  position: sticky;
  top: 0;
  height: 100vh;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.sidebar-brand {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 700;
  margin: 4px 8px 22px;
  color: #fff;
}
.nav-link {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  border-radius: 10px;
  color: var(--text-dim);
  font-size: 14px;
  transition: all 0.15s;
}
.nav-link:hover { color: #fff; background: var(--glass-bg); }
.nav-link.active {
  color: #fff;
  background: rgba(124, 156, 255, 0.22);
}
.nav-link .ic { width: 18px; text-align: center; }
.sidebar-foot {
  margin-top: auto;
  padding-top: 16px;
  border-top: 1px solid var(--glass-border);
}
.main { flex: 1; padding: 32px 32px 60px; min-width: 0; }

.page-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
  gap: 16px;
  flex-wrap: wrap;
}
.page-title {
  font-family: var(--font-display);
  font-size: 24px;
  font-weight: 700;
  margin: 0;
}
.page-sub { color: var(--text-dim); font-size: 13px; margin-top: 4px; }

/* 按钮 */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 9px 16px;
  border-radius: 10px;
  font-size: 14px;
  border: 1px solid var(--glass-border);
  background: var(--glass-bg);
  color: #fff;
  transition: all 0.15s;
  text-decoration: none;
}
.btn:hover { background: var(--glass-bg-strong); }
.btn-primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  border-color: transparent;
}
.btn-primary:hover { filter: brightness(1.08); background: linear-gradient(135deg, var(--accent), var(--accent-2)); }
.btn-danger { color: var(--danger); border-color: rgba(255, 107, 107, 0.4); }
.btn-danger:hover { background: rgba(255, 107, 107, 0.15); }
.btn-sm { padding: 5px 10px; font-size: 12px; }
.btn-row { display: flex; gap: 6px; }

/* 看板 KPI */
.kpi-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  margin-bottom: 32px;
}
@media (max-width: 720px) { .kpi-grid { grid-template-columns: 1fr; } }
.kpi {
  padding: 22px 24px;
  border-radius: var(--radius);
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
}
.kpi-label { color: var(--text-dim); font-size: 13px; }
.kpi-num {
  font-family: var(--font-display);
  font-size: 40px;
  font-weight: 700;
  margin-top: 8px;
  color: #fff;
}
.kpi-num .unit { font-size: 16px; color: var(--text-dim); margin-left: 4px; }

/* 表格 */
.panel {
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
}
.panel-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  border-bottom: 1px solid var(--glass-border);
}
.panel-title { font-size: 15px; font-weight: 600; margin: 0; }
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; min-width: 520px; }
th, td {
  padding: 12px 16px;
  text-align: left;
  font-size: 14px;
  border-bottom: 1px solid var(--glass-border);
}
th {
  color: var(--text-dim);
  font-weight: 600;
  font-size: 13px;
  background: rgba(255, 255, 255, 0.04);
  white-space: nowrap;
}
tbody tr { transition: background 0.15s; }
tbody tr:hover { background: rgba(255, 255, 255, 0.04); }
td .cell-icon {
  width: 24px;
  height: 24px;
  border-radius: 6px;
  object-fit: cover;
  background: rgba(255, 255, 255, 0.1);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  vertical-align: middle;
  margin-right: 8px;
}
.cell-url { color: var(--text-dim); font-size: 12px; }
.row-empty { text-align: center; color: var(--text-muted); padding: 32px 0; }

/* 表单 */
.form { max-width: 580px; }
.form-group { margin-bottom: 16px; }
.form-label { display: block; font-size: 13px; color: var(--text-dim); margin-bottom: 6px; }
.form-input, .form-select, .form-textarea {
  width: 100%;
  padding: 10px 14px;
  border-radius: 10px;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  color: #fff;
  font-size: 14px;
  outline: none;
  transition: border-color 0.15s;
}
.form-input:focus, .form-select:focus, .form-textarea:focus { border-color: var(--accent); }
.form-textarea { min-height: 80px; resize: vertical; font-family: inherit; }
.form-select option { background: #0a0e27; color: #fff; }
.form-actions { display: flex; gap: 10px; margin-top: 8px; }

/* 弹窗 */
.modal-mask {
  position: fixed;
  inset: 0;
  z-index: 50;
  background: rgba(0, 0, 0, 0.55);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  -webkit-backdrop-filter: blur(4px);
  backdrop-filter: blur(4px);
}
.modal {
  width: 100%;
  max-width: 520px;
  padding: 24px;
  border-radius: var(--radius);
  background: rgba(15, 20, 45, 0.92);
  border: 1px solid var(--glass-border);
  box-shadow: var(--glass-shadow);
}
.modal-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 18px;
}
.modal-title { font-family: var(--font-display); font-size: 18px; font-weight: 600; margin: 0; }
.modal-close {
  background: transparent;
  border: none;
  color: var(--text-dim);
  font-size: 22px;
  line-height: 1;
}
.modal-close:hover { color: #fff; }

/* toast */
.toast {
  position: fixed;
  top: 24px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 100;
  padding: 12px 22px;
  border-radius: 10px;
  font-size: 14px;
  color: #fff;
  background: rgba(20, 26, 50, 0.95);
  border: 1px solid var(--glass-border);
  box-shadow: var(--glass-shadow);
  animation: toast-in 0.25s ease;
}
.toast.ok { border-color: rgba(74, 222, 128, 0.5); }
.toast.err { border-color: rgba(255, 107, 107, 0.5); }
@keyframes toast-in {
  from { opacity: 0; transform: translate(-50%, -10px); }
  to { opacity: 1; transform: translate(-50%, 0); }
}

/* 移动端折叠侧栏 */
.sidebar-toggle { display: none; }
@media (max-width: 720px) {
  .sidebar {
    position: fixed;
    left: 0;
    top: 0;
    height: 100vh;
    transform: translateX(-100%);
    transition: transform 0.2s;
    z-index: 30;
  }
  .sidebar.open { transform: translateX(0); }
  .main { padding: 20px 16px 60px; }
  .sidebar-toggle {
    display: inline-flex;
    position: fixed;
    top: 16px;
    left: 16px;
    z-index: 31;
  }
}