/* 管理端：左侧导航 + 内容区（M3 风格：选中项是胶囊，内容区是圆角卡片） */
.shell {
  display: grid;
  grid-template-columns: 248px minmax(0, 1fr);
  min-height: 100%;
}

.side {
  position: sticky;
  top: 0;
  height: 100vh;
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 16px 12px;
  background: var(--app-card-inset);
  overflow: auto;
}

.side .brand {
  padding: 8px 14px 16px;
  font-size: 18px;
  font-weight: 700;
  color: var(--app-ink);
  display: block;
}

.side .brand:hover {
  text-decoration: none;
}

.side .section {
  padding: 16px 14px 4px;
  font-size: 12px;
  color: var(--app-ink-faint);
}

.side a.nav {
  display: flex;
  align-items: center;
  gap: 12px;
  height: 44px;
  padding: 0 14px;
  border-radius: var(--r-pill);
  color: var(--app-ink);
  font-weight: 500;
}

.side a.nav:hover {
  text-decoration: none;
  background: color-mix(in srgb, var(--app-ink), transparent calc((1 - var(--state-hover)) * 100%));
}

.side a.nav.active {
  background: var(--app-accent-container);
  color: var(--app-on-accent-container);
}

.side .spacer {
  flex: 1;
}

.me {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  border-radius: var(--r-card);
  background: var(--app-card);
}

.avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--app-accent);
  color: var(--app-card);
  display: grid;
  place-items: center;
  font-weight: 600;
}

.main {
  padding: 24px 32px 64px;
  min-width: 0;
}

.main > header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 24px;
  flex-wrap: wrap;
}

.main > header h1 {
  font-size: 24px;
  font-weight: 700;
}

.login {
  min-height: 100%;
  display: grid;
  place-items: center;
  padding: 24px;
}

.login .card {
  width: min(400px, 100%);
  padding: 32px;
}

.login h1 {
  font-size: 28px;
  font-weight: 800;
  margin-bottom: 4px;
}

.kv {
  display: grid;
  grid-template-columns: 140px minmax(0, 1fr);
  gap: 8px 16px;
}

.kv dt {
  color: var(--app-ink-faint);
}

.kv dd {
  margin: 0;
  min-width: 0;
  overflow-wrap: anywhere;
}

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

.form-grid {
  display: grid;
  gap: 16px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.form-grid .wide {
  grid-column: 1 / -1;
}

.switch {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  cursor: pointer;
}

.switch input {
  accent-color: var(--app-accent);
  width: 18px;
  height: 18px;
}

.test-status {
  text-transform: none;
}

@media (max-width: 900px) {
  .shell {
    grid-template-columns: minmax(0, 1fr);
  }

  .side {
    position: static;
    height: auto;
    flex-direction: row;
    flex-wrap: wrap;
    align-items: center;
  }

  .side .section,
  .side .spacer,
  .me .grow {
    display: none;
  }

  .main {
    padding: 16px;
  }

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