:root {
  --bg: #f4f7fb;
  --surface: #ffffff;
  --surface-soft: #f8fbff;
  --text: #24384f;
  --text-secondary: #5f738c;
  --primary: #1f5fa8;
  --primary-strong: #164b86;
  --border: #d9e3ef;
  --danger: #c53636;
  --success: #2f7f3b;
  --shadow: 0 8px 24px rgba(31, 62, 97, 0.08);
  --radius: 12px;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  width: 100%;
  min-height: 100%;
  background: var(--bg);
  color: var(--text);
  font: 14px/1.5 -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
}

button,
input,
select,
textarea {
  font: inherit;
}

a {
  color: inherit;
  text-decoration: none;
}

.app-shell {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 240px minmax(0, 1fr);
}

.sidebar {
  background: linear-gradient(180deg, #123f72, #0f335d);
  color: #eaf3ff;
  padding: 20px 14px;
}

.brand {
  font-size: 18px;
  font-weight: 700;
  padding: 10px 12px 18px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.2);
}

.menu-group {
  margin-top: 12px;
}

.menu-title {
  font-size: 12px;
  opacity: 0.7;
  padding: 8px 12px;
}

.menu-item {
  width: 100%;
  border: 0;
  outline: 0;
  cursor: pointer;
  background: transparent;
  color: inherit;
  text-align: left;
  padding: 10px 12px;
  border-radius: 10px;
  transition: background 0.2s ease;
}

.menu-item:hover {
  background: rgba(255, 255, 255, 0.12);
}

.menu-item.active {
  background: rgba(255, 255, 255, 0.22);
  font-weight: 600;
}

.main {
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.topbar {
  height: 64px;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  padding: 0 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.topbar-title {
  font-size: 18px;
  font-weight: 700;
}

.topbar-user {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--text-secondary);
}

.ghost-btn,
.primary-btn,
.danger-btn,
.link-btn {
  border: 0;
  border-radius: 8px;
  cursor: pointer;
  padding: 8px 14px;
  transition: all 0.2s ease;
}

.ghost-btn {
  background: #edf3fa;
  color: #355272;
}

.ghost-btn:hover {
  background: #e2ecf8;
}

.primary-btn {
  background: var(--primary);
  color: #fff;
}

.primary-btn:hover {
  background: var(--primary-strong);
}

.danger-btn {
  background: #fbe8e8;
  color: var(--danger);
}

.danger-btn:hover {
  background: #f6dada;
}

.link-btn {
  background: transparent;
  color: var(--primary);
  padding: 4px 0;
}

.content {
  padding: 20px;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.section {
  padding: 16px;
}

.section + .section {
  margin-top: 12px;
}

.grid {
  display: grid;
  gap: 12px;
}

.grid.metrics {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.metric-box {
  background: var(--surface-soft);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 12px;
}

.metric-label {
  color: var(--text-secondary);
  font-size: 12px;
}

.metric-value {
  margin-top: 4px;
  font-size: 22px;
  font-weight: 700;
}

.toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}

.filters {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.input,
.select,
.textarea {
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 8px 10px;
  min-height: 36px;
  background: #fff;
  color: var(--text);
}

.input,
.select {
  min-width: 160px;
}

.textarea {
  width: 100%;
  min-height: 80px;
  resize: vertical;
}

.textarea.auto-textarea {
  min-height: 36px;
  resize: none;
  overflow: hidden;
}

.table-wrap {
  width: 100%;
  overflow: auto;
  margin-top: 12px;
}

table {
  width: 100%;
  border-collapse: collapse;
  min-width: 760px;
}

th,
td {
  border-bottom: 1px solid var(--border);
  padding: 10px 8px;
  text-align: left;
  vertical-align: top;
}

th {
  font-size: 12px;
  color: var(--text-secondary);
  background: #f6f9fd;
}

.actions {
  display: inline-flex;
  gap: 8px;
  flex-wrap: wrap;
}

.pagination {
  margin-top: 12px;
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 10px;
}

.tag {
  display: inline-flex;
  align-items: center;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--surface-soft);
  padding: 2px 8px;
  font-size: 12px;
  color: var(--text-secondary);
}

.tag.ok {
  border-color: #b7e4c0;
  background: #ecfaf0;
  color: var(--success);
}

.tag.warn {
  border-color: #f5d6ac;
  background: #fff8ea;
  color: #946200;
}

.tag.bad {
  border-color: #efc2c2;
  background: #fff0f0;
  color: var(--danger);
}

.login-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.login-card {
  width: 100%;
  max-width: 420px;
  background: var(--surface);
  border-radius: 16px;
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  padding: 24px;
}

.login-title {
  margin: 0 0 6px;
  font-size: 22px;
}

.login-desc {
  margin: 0 0 16px;
  color: var(--text-secondary);
}

.form-row {
  margin-bottom: 12px;
}

.form-row label {
  display: block;
  margin-bottom: 6px;
  font-size: 12px;
  color: var(--text-secondary);
}

.modal-mask {
  position: fixed;
  inset: 0;
  background: rgba(14, 27, 42, 0.45);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
}

.modal {
  width: min(720px, calc(100% - 28px));
  max-height: calc(100vh - 48px);
  overflow: auto;
  background: #fff;
  border-radius: 14px;
  border: 1px solid var(--border);
  box-shadow: 0 18px 40px rgba(15, 35, 56, 0.28);
}

.modal-head,
.modal-foot {
  padding: 12px 14px;
  border-bottom: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.modal-foot {
  border-bottom: 0;
  border-top: 1px solid var(--border);
  justify-content: flex-end;
  gap: 8px;
}

.modal-body {
  padding: 14px;
}

.two-col {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.helper {
  font-size: 12px;
  color: var(--text-secondary);
}

.notice {
  margin-top: 10px;
  padding: 10px 12px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: #f7fbff;
  color: var(--text-secondary);
}

.error-text {
  color: var(--danger);
  font-size: 12px;
  margin-top: 6px;
}

@media (max-width: 1080px) {
  .app-shell {
    grid-template-columns: 200px minmax(0, 1fr);
  }

  .grid.metrics {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 860px) {
  .app-shell {
    grid-template-columns: 1fr;
  }

  .sidebar {
    padding: 10px;
  }

  .menu-group {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
  }

  .menu-title {
    width: 100%;
  }

  .menu-item {
    width: auto;
  }

  .two-col {
    grid-template-columns: 1fr;
  }
}