:root {
  color-scheme: light;
  --bg: #f6f7fb;
  --panel: #ffffff;
  --panel-soft: #f0f3ff;
  --text: #20233a;
  --muted: #6d7288;
  --line: #e1e5f2;
  --primary: #5f5cf1;
  --primary-strong: #4643d5;
  --danger: #d84f5f;
  --warning: #b7791f;
  --success: #16845b;
  --shadow: 0 18px 45px rgba(36, 42, 88, 0.12);
  font-family: Inter, "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background: radial-gradient(circle at top left, #ebeaff 0, transparent 32rem), var(--bg);
  color: var(--text);
}

a {
  color: inherit;
}

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

button {
  border: 0;
  border-radius: 0.8rem;
  background: var(--primary);
  color: #fff;
  cursor: pointer;
  padding: 0.7rem 1rem;
  transition: background 0.15s ease, transform 0.15s ease;
}

button:hover {
  background: var(--primary-strong);
  transform: translateY(-1px);
}

button.secondary {
  background: #eef0ff;
  color: var(--primary-strong);
}

button.danger {
  background: var(--danger);
}

button.ghost {
  background: transparent;
  color: var(--muted);
}

button:disabled {
  cursor: not-allowed;
  opacity: 0.55;
  transform: none;
}

input,
textarea,
select {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 0.75rem;
  background: #fff;
  color: var(--text);
  padding: 0.7rem 0.8rem;
}

textarea {
  min-height: 7rem;
  resize: vertical;
}

label {
  display: grid;
  gap: 0.35rem;
  color: var(--muted);
  font-size: 0.9rem;
}

label span {
  font-weight: 700;
  color: var(--text);
}

.login-shell {
  display: grid;
  min-height: 100vh;
  place-items: center;
  padding: 2rem;
}

.login-card {
  width: min(28rem, 100%);
  border: 1px solid var(--line);
  border-radius: 1.5rem;
  background: rgba(255, 255, 255, 0.88);
  box-shadow: var(--shadow);
  padding: 2rem;
}

.login-card h1 {
  margin: 0 0 0.5rem;
}

.login-card p {
  margin: 0 0 1.5rem;
  color: var(--muted);
}

.app-shell {
  display: grid;
  grid-template-columns: 17rem 1fr;
  min-height: 100vh;
}

.sidebar {
  position: sticky;
  top: 0;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  height: 100vh;
  border-right: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.86);
  padding: 1.25rem;
}

.brand {
  display: grid;
  gap: 0.25rem;
}

.brand strong {
  font-size: 1.15rem;
}

.brand span,
.user-box {
  color: var(--muted);
  font-size: 0.9rem;
}

.nav {
  display: grid;
  gap: 0.45rem;
}

.nav button {
  justify-content: flex-start;
  background: transparent;
  color: var(--text);
  text-align: left;
}

.nav button.active,
.nav button:hover {
  background: var(--panel-soft);
  color: var(--primary-strong);
  transform: none;
}

.content {
  padding: 1.5rem;
}

.topbar,
.panel,
.card {
  border: 1px solid var(--line);
  border-radius: 1.2rem;
  background: rgba(255, 255, 255, 0.9);
  box-shadow: 0 8px 24px rgba(36, 42, 88, 0.06);
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1rem;
  padding: 1rem 1.2rem;
}

.topbar h1 {
  margin: 0;
  font-size: 1.35rem;
}

.topbar p {
  margin: 0.25rem 0 0;
  color: var(--muted);
}

.panel {
  margin-bottom: 1rem;
  padding: 1rem;
}

.grid {
  display: grid;
  gap: 1rem;
}

.grid.two {
  grid-template-columns: minmax(0, 0.9fr) minmax(24rem, 1.1fr);
}

.grid.three {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.card {
  padding: 1rem;
}

.card h3 {
  margin: 0 0 0.35rem;
}

.metric {
  font-size: 2rem;
  font-weight: 800;
}

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

.toolbar,
.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
  align-items: center;
}

.compact-actions {
  gap: 0.45rem;
}

.compact-actions button {
  padding: 0.55rem 0.75rem;
}

.toolbar > * {
  flex: 1 1 12rem;
}

.table-wrap {
  overflow: auto;
  border: 1px solid var(--line);
  border-radius: 1rem;
}

table {
  width: 100%;
  border-collapse: collapse;
  min-width: 52rem;
  background: #fff;
}

th,
td {
  border-bottom: 1px solid var(--line);
  padding: 0.75rem;
  text-align: left;
  vertical-align: top;
}

th {
  background: #f7f8ff;
  color: var(--muted);
  font-size: 0.85rem;
}

tr.selectable {
  cursor: pointer;
}

tr.selectable:hover {
  background: #fafbff;
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.8rem;
}

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

.badge {
  display: inline-flex;
  align-items: center;
  border-radius: 999px;
  background: #eef0ff;
  color: var(--primary-strong);
  font-size: 0.78rem;
  font-weight: 700;
  padding: 0.25rem 0.55rem;
}

.badge.warning {
  background: #fff5d9;
  color: var(--warning);
}

.badge.success {
  background: #e5f8ef;
  color: var(--success);
}

.badge.danger {
  background: #ffe8ec;
  color: var(--danger);
}

.notice,
.error {
  border-radius: 1rem;
  margin-bottom: 1rem;
  padding: 0.8rem 1rem;
}

.notice {
  background: #ecfdf3;
  color: var(--success);
}

.error {
  background: #ffe8ec;
  color: var(--danger);
}

.inline-list {
  display: grid;
  gap: 0.5rem;
  margin: 0.75rem 0;
}

.inline-item {
  display: flex;
  justify-content: space-between;
  gap: 0.7rem;
  border: 1px solid var(--line);
  border-radius: 0.8rem;
  padding: 0.6rem;
}

@media (max-width: 920px) {
  .app-shell,
  .grid.two,
  .grid.three,
  .form-grid {
    grid-template-columns: 1fr;
  }

  .sidebar {
    position: static;
    height: auto;
  }
}