/* ============================================================
   admin.css — 管理后台完整样式
   基于 common.css，包含侧边栏、卡片、表格、弹窗等所有样式
   ============================================================ */

/* ============ 管理后台双栏布局 ============ */
.admin-layout {
  display: flex;
  gap: 0;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 24px;
}

/* ============ 左侧侧边栏 ============ */
.admin-sidebar {
  width: 220px;
  flex-shrink: 0;
  padding: 28px 0 40px;
  border-right: 1px solid var(--border);
  position: sticky;
  top: 80px;
  align-self: flex-start;
  max-height: calc(100vh - 80px);
  overflow-y: auto;
}

.admin-menu {
  list-style: none;
  padding: 0;
  margin: 0;
}

.menu-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 16px;
  cursor: pointer;
  border-radius: var(--radius-sm);
  transition: background 120ms ease, color 120ms ease;
  font-size: 14px;
  color: var(--body-c);
  text-decoration: none;
  user-select: none;
}

.menu-item:hover {
  background: var(--surface);
}

.menu-item.active {
  background: var(--accent-soft);
  color: var(--accent);
  font-weight: 500;
}

.menu-item.active svg {
  color: var(--accent);
}

.menu-item svg {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  color: var(--body-c);
  transition: color 120ms ease;
}

.menu-tag {
  font-size: 9px;
  color: #f59e0b;
  background: var(--warn-bg);
  padding: 0 6px;
  border-radius: 3px;
  margin-left: auto;
  white-space: nowrap;
}

/* ============ 右侧内容区 ============ */
.admin-main {
  flex: 1;
  padding: 28px 0 40px 40px;
  min-width: 0;
}

.menu-content {
  display: none;
}

.menu-content.active {
  display: block;
}

/* ============ 消息条 ============ */
.msg {
  font-size: 13px;
  border-radius: 8px;
  padding: 10px 14px;
  margin: 0 0 16px 0;
  display: none;
}

.msg.show {
  display: block;
}

.msg.err {
  background: var(--err-bg);
  border: 1px solid rgba(223, 27, 65, 0.35);
  color: var(--err);
}

.msg.ok {
  background: var(--ok-bg);
  border: 1px solid rgba(21, 190, 83, 0.4);
  color: var(--ok);
}

/* ============ 卡片 ============ */
.card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px 24px;
  margin-bottom: 18px;
  box-shadow: var(--shadow-sm);
}

.card h3 {
  font-size: 16px;
  margin-bottom: 14px;
  color: var(--ink);
  letter-spacing: -0.01em;
}

/* ============ 积分概览 ============ */
.quota {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

.quota .box {
  flex: 1;
  min-width: 140px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 16px;
  text-align: center;
}

.quota .box .num {
  font-size: 28px;
  font-weight: 700;
  color: var(--ink);
  letter-spacing: -0.02em;
  font-variant-numeric: tabular-nums;
}

.quota .box.remain .num {
  color: var(--accent);
}

.quota .box .lab {
  color: var(--body-c);
  font-size: 13px;
  margin-top: 4px;
}

.bar {
  height: 8px;
  border-radius: 99px;
  background: var(--surface);
  border: 1px solid var(--border);
  overflow: hidden;
  margin: 14px 0 4px;
}

.bar > i {
  display: block;
  height: 100%;
  border-radius: 99px;
  background: var(--accent);
  transition: width 300ms ease;
}

.pct {
  color: var(--body-c);
  font-size: 12px;
  text-align: right;
}

/* ============ 表格 ============ */
table {
  width: 100%;
  border-collapse: collapse;
}

th,
td {
  text-align: left;
  padding: 10px 12px;
  border-bottom: 1px solid var(--border);
  font-size: 14px;
  word-break: break-all;
}

th {
  color: var(--body-c);
  font-weight: 600;
  font-size: 13px;
}

tbody tr:last-child td {
  border-bottom: 0;
}

tbody tr:hover {
  background: var(--surface);
}

.key-id {
  font-family: var(--font-mono);
  font-size: 12.5px;
  color: var(--ink-soft);
}

.empty {
  color: var(--body-c);
  text-align: center;
  padding: 26px 0;
  font-size: 14px;
}

/* ============ 积分包 ============ */
.pkg-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 14px;
}

.pkg {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px 20px;
  background: #fff;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-sm);
  transition: border-color 120ms ease, box-shadow 120ms ease;
}

.pkg:hover {
  border-color: var(--accent);
  box-shadow: var(--shadow-ambient);
}

.pkg.free {
  border-style: dashed;
}

.pkg.intro {
  border-color: rgba(255, 179, 32, 0.55);
}

.pkg .name {
  font-size: 13px;
  color: var(--body-c);
}

.pkg .pts {
  font-size: 22px;
  font-weight: 700;
  color: var(--ink);
  margin-top: 4px;
  letter-spacing: -0.01em;
}

.pkg .pts small {
  font-size: 14px;
  font-weight: 400;
  color: var(--body-c);
}

.pkg .price {
  font-size: 20px;
  font-weight: 700;
  color: var(--ink);
  margin-top: 2px;
  letter-spacing: -0.02em;
  font-variant-numeric: tabular-nums;
}

.pkg .note {
  font-size: 12px;
  color: var(--body-c);
  margin-top: 4px;
  flex: 1;
}

.pkg .btn {
  width: 100%;
  margin-top: 12px;
}

/* ============ 弹窗（通用） ============ */
.mask {
  position: fixed;
  inset: 0;
  background: rgba(6, 27, 49, 0.5);
  backdrop-filter: blur(4px);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 999;
  padding: 20px;
}

.mask.open {
  display: flex;
}

.modal {
  width: 100%;
  max-width: 400px;
  background: #fff;
  border-radius: var(--radius);
  padding: 28px 26px;
  box-shadow: var(--shadow-blue);
  position: relative;
  animation: modalIn 200ms ease;
}

@keyframes modalIn {
  from {
    opacity: 0;
    transform: translateY(-20px) scale(0.96);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

.modal .close {
  position: absolute;
  right: 14px;
  top: 10px;
  background: none;
  border: 0;
  color: var(--body-c);
  font-size: 22px;
  cursor: pointer;
  line-height: 1;
  padding: 4px 8px;
  border-radius: 4px;
  transition: background 120ms ease;
}

.modal .close:hover {
  background: var(--surface);
}

.modal h3 {
  font-size: 18px;
  color: var(--ink);
  margin-bottom: 6px;
  letter-spacing: -0.01em;
}

.modal .sub {
  color: var(--body-c);
  font-size: 13px;
  margin-bottom: 14px;
}

.modal .inp {
  width: 100%;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--ink);
  padding: 11px 13px;
  font-size: 15px;
  outline: none;
  transition: border-color 120ms ease, box-shadow 120ms ease;
  font-family: var(--font-sans);
}

.modal .inp:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(83, 58, 253, 0.12);
}

.modal .inp::placeholder {
  color: #9aabc0;
}

.modal .btn {
  width: 100%;
}

/* ============ 支付弹窗 ============ */
.pay-tabs {
  display: flex;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 4px;
  margin-bottom: 16px;
}

.pay-tabs span {
  flex: 1;
  text-align: center;
  padding: 8px 0;
  cursor: pointer;
  color: var(--body-c);
  border-radius: var(--radius-sm);
  font-size: 14px;
  transition: all 120ms ease;
  user-select: none;
}

.pay-tabs span.on {
  background: var(--accent);
  color: #fff;
  font-weight: 500;
}

.pay-tabs span:hover:not(.on) {
  background: rgba(0, 0, 0, 0.04);
}

.qr-box {
  margin: 0 auto;
  width: 180px;
  height: 180px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 8px;
  overflow: hidden;
}

.qr-box img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.qr-box .qr-placeholder {
  color: var(--body-c);
  font-size: 13px;
  text-align: center;
}

/* ============ 确认弹窗 ============ */
#confirmModal .modal {
  max-width: 380px;
  text-align: center;
}

#confirmModal .modal .btn {
  flex: 1;
}

/* ============ 响应式 ============ */
@media (max-width: 768px) {
  .admin-layout {
    flex-direction: column;
    padding: 0 16px;
  }

  .admin-sidebar {
    width: 100%;
    position: static;
    border-right: none;
    border-bottom: 1px solid var(--border);
    padding: 12px 0 16px;
    max-height: none;
    overflow-y: visible;
  }

  .admin-menu {
    display: flex;
    gap: 4px;
    flex-wrap: wrap;
  }

  .menu-item {
    padding: 6px 12px;
    font-size: 13px;
  }

  .menu-item svg {
    width: 16px;
    height: 16px;
  }

  .menu-tag {
    font-size: 8px;
  }

  .admin-main {
    padding: 16px 0 32px;
  }

  .card {
    padding: 16px 18px;
  }

  .quota .box {
    min-width: 100px;
  }

  .quota .box .num {
    font-size: 22px;
  }

  th,
  td {
    font-size: 12.5px;
    padding: 8px;
  }
}

@media (max-width: 480px) {
  .admin-layout {
    padding: 0 12px;
  }

  .admin-menu {
    gap: 2px;
  }

  .menu-item {
    font-size: 12px;
    padding: 4px 10px;
  }

  .menu-item svg {
    width: 14px;
    height: 14px;
  }

  .admin-main {
    padding: 12px 0 24px;
  }

  .card {
    padding: 12px 14px;
    border-radius: var(--radius-sm);
  }

  .card h3 {
    font-size: 15px;
  }

  .pkg-grid {
    grid-template-columns: 1fr;
  }

  .quota {
    flex-direction: column;
  }

  .quota .box {
    min-width: auto;
  }

  .modal {
    padding: 20px 16px;
    max-width: 100%;
    margin: 0 8px;
  }

  .qr-box {
    width: 150px;
    height: 150px;
  }

  .pay-tabs span {
    font-size: 13px;
    padding: 6px 0;
  }

  .modal h3 {
    font-size: 16px;
  }

  #confirmModal .modal {
    max-width: 100%;
    margin: 0 8px;
  }

  .modal .btn {
    font-size: 14px;
    padding: 8px 16px;
  }
}