:root {
  color-scheme: light;
  --bg: #f6f7f9;
  --panel: #ffffff;
  --text: #1b2430;
  --muted: #667085;
  --line: #d7dce2;
  --primary: #176b87;
  --primary-strong: #0f4e63;
  --accent: #bd6b2f;
  --green: #168055;
  --blue: #2563eb;
  --yellow: #b7791f;
  --gray: #64748b;
  --danger: #b42318;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
}

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

button {
  border: 1px solid var(--line);
  border-radius: 6px;
  background: #fff;
  color: var(--text);
  padding: 8px 12px;
  cursor: pointer;
}

button:hover {
  border-color: var(--primary);
}

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

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

.topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 14px 20px;
  border-bottom: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(10px);
}

.topbar h1 {
  margin: 0;
  font-size: 21px;
}

.topbar p {
  margin: 3px 0 0;
  color: var(--muted);
  font-size: 13px;
}

.topbar-actions,
.toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
}

select,
input,
textarea {
  width: 100%;
  min-height: 38px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: #fff;
  padding: 8px 10px;
  color: var(--text);
}

.topbar-actions select,
.toolbar select,
.toolbar input {
  width: auto;
  min-width: 150px;
}

.toolbar input[type="search"] {
  min-width: 280px;
}

.layout {
  display: grid;
  grid-template-columns: 180px minmax(0, 1fr);
  min-height: calc(100vh - 70px);
}

.sidebar {
  border-right: 1px solid var(--line);
  background: #fff;
  padding: 14px 10px;
}

.nav-btn {
  display: block;
  width: 100%;
  margin-bottom: 8px;
  text-align: left;
}

.nav-btn.active {
  border-color: var(--primary);
  background: #e8f3f6;
  color: var(--primary-strong);
  font-weight: 700;
}

.content {
  min-width: 0;
  padding: 20px;
}

.view {
  display: none;
}

.view.active {
  display: block;
}

.section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 16px;
}

.section-header h2 {
  margin: 0;
  font-size: 22px;
}

article,
.stack-form,
.form-grid,
.device-card,
.table-like,
dialog {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
  margin-bottom: 16px;
}

.stat {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  padding: 14px;
}

.stat .value {
  margin-top: 8px;
  font-size: 28px;
  font-weight: 800;
}

.stat .label {
  color: var(--muted);
  font-size: 13px;
}

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

article {
  padding: 16px;
}

article h3,
.stack-form h3 {
  margin: 0 0 12px;
}

.list {
  display: grid;
  gap: 10px;
}

.list-item {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  padding: 12px;
}

.list-item h4 {
  margin: 0 0 6px;
}

.meta {
  color: var(--muted);
  font-size: 13px;
  line-height: 1.5;
}

.device-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(270px, 1fr));
  gap: 12px;
  margin-top: 14px;
}

.device-card {
  padding: 14px;
}

.device-card h3 {
  margin: 0 0 8px;
  font-size: 17px;
}

.device-card .actions,
.list-item .actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 10px;
}

.badge {
  display: inline-flex;
  align-items: center;
  min-height: 24px;
  border-radius: 999px;
  padding: 2px 9px;
  font-size: 12px;
  font-weight: 700;
}

.badge.in_stock {
  background: #e8f7ef;
  color: var(--green);
}

.badge.in_use {
  background: #e8efff;
  color: var(--blue);
}

.badge.in_repair {
  background: #fff7df;
  color: var(--yellow);
}

.badge.scrapped {
  background: #eef1f5;
  color: var(--gray);
}

.badge.result-pending {
  background: #f2f4f7;
  color: var(--gray);
}

.badge.result-matched {
  background: #e8f7ef;
  color: var(--green);
}

.badge.result-abnormal {
  background: #fff7df;
  color: var(--yellow);
}

.badge.result-missing {
  background: #fee4e2;
  color: var(--danger);
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  padding: 16px;
}

.form-grid.compact {
  grid-template-columns: repeat(5, minmax(0, 1fr));
  margin-bottom: 16px;
}

.stack-form {
  display: grid;
  gap: 12px;
  padding: 16px;
}

label {
  display: grid;
  gap: 6px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 700;
}

label > input,
label > select,
label > textarea {
  color: var(--text);
  font-weight: 400;
}

.full {
  grid-column: 1 / -1;
}

.checkbox {
  display: flex;
  align-items: center;
  gap: 8px;
}

.checkbox input {
  width: auto;
  min-height: auto;
}

.table-like {
  overflow: hidden;
}

.progress {
  height: 8px;
  overflow: hidden;
  border-radius: 999px;
  background: #eef2f6;
  margin: 10px 0;
}

.progress span {
  display: block;
  height: 100%;
  border-radius: inherit;
  background: var(--primary);
}

.inventory-devices {
  display: grid;
  gap: 8px;
  margin-top: 12px;
}

.mini-row {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) auto auto;
  gap: 10px;
  align-items: center;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 10px;
}

.template-preview {
  margin: 10px 0 0;
  white-space: pre-wrap;
  word-break: break-word;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #f8fafc;
  padding: 10px;
  color: var(--text);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 12px;
  line-height: 1.5;
}

.list-item.unread {
  border-color: var(--primary);
  background: #f8fcfd;
}

.row {
  display: grid;
  grid-template-columns: 1.2fr 1fr 1fr 1fr auto;
  gap: 10px;
  align-items: center;
  padding: 12px 14px;
  border-top: 1px solid var(--line);
}

.row:first-child {
  border-top: 0;
}

.row.header {
  background: #f1f5f8;
  color: var(--muted);
  font-size: 13px;
  font-weight: 800;
}

dialog {
  width: min(920px, calc(100vw - 32px));
  max-height: calc(100vh - 40px);
  padding: 0;
}

dialog::backdrop {
  background: rgba(15, 23, 42, 0.42);
}

.dialog-header {
  position: sticky;
  top: 0;
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  border-bottom: 1px solid var(--line);
  background: #fff;
  padding: 14px 16px;
}

.dialog-header h2 {
  margin: 0;
}

#deviceDetail {
  padding: 16px;
}

.detail-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.detail-box {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 12px;
}

.timeline {
  position: relative;
  display: grid;
  gap: 12px;
  margin-top: 12px;
}

.timeline-item {
  border-left: 3px solid var(--primary);
  background: #f8fbfc;
  padding: 10px 12px;
}

#toast {
  position: fixed;
  right: 18px;
  bottom: 18px;
  z-index: 20;
  min-width: 220px;
  max-width: 360px;
  border-radius: 8px;
  background: #17202b;
  color: #fff;
  padding: 12px 14px;
  box-shadow: 0 12px 32px rgba(15, 23, 42, 0.28);
  opacity: 0;
  transform: translateY(12px);
  transition: 160ms ease;
  pointer-events: none;
}

#toast.show {
  opacity: 1;
  transform: translateY(0);
}

.danger {
  color: var(--danger);
}

@media (max-width: 920px) {
  .topbar {
    align-items: flex-start;
    flex-direction: column;
  }

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

  .sidebar {
    display: flex;
    overflow-x: auto;
    gap: 8px;
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .nav-btn {
    width: auto;
    white-space: nowrap;
    margin: 0;
  }

  .stats-grid,
  .two-column,
  .form-grid,
  .form-grid.compact,
  .detail-grid {
    grid-template-columns: 1fr;
  }

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

  .mini-row {
    grid-template-columns: 1fr;
  }

  .toolbar input[type="search"],
  .toolbar input,
  .toolbar select,
  .topbar-actions select {
    width: 100%;
  }
}