:root {
  color-scheme: light;
  --bg: #eef3f8;
  --panel: #ffffff;
  --panel-soft: #f8fafc;
  --border: #dce3eb;
  --text: #172033;
  --muted: #667085;
  --primary: #2563eb;
  --primary-dark: #1d4ed8;
  --teal: #0f766e;
  --green: #16a34a;
  --amber: #b7791f;
  --purple: #7c3aed;
  --danger: #dc2626;
  --shadow: 0 16px 40px rgb(15 23 42 / 8%);
}

* {
  box-sizing: border-box;
}

html,
body,
#app {
  width: 100%;
  min-width: 1180px;
  height: 100%;
  margin: 0;
}

body {
  color: var(--text);
  font-family: Inter, "PingFang SC", "Microsoft YaHei", Arial, sans-serif;
  background: var(--bg);
}

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

h1,
h2,
p {
  margin: 0;
}

.login-page {
  display: grid;
  grid-template-columns: minmax(520px, 1.15fr) minmax(420px, 0.85fr);
  min-height: 100vh;
  background:
    linear-gradient(120deg, rgb(15 118 110 / 18%), transparent 32%),
    linear-gradient(300deg, rgb(37 99 235 / 15%), transparent 36%),
    #edf4f8;
}

.login-visual {
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: center;
  min-height: 100%;
  padding: 72px 88px;
  overflow: hidden;
  color: #fff;
  background:
    linear-gradient(135deg, rgb(12 35 64 / 92%), rgb(15 118 110 / 82%)),
    radial-gradient(circle at 22% 22%, rgb(37 99 235 / 36%), transparent 28%);
}

.visual-grid {
  position: absolute;
  inset: 0;
  opacity: 0.18;
  background-image:
    linear-gradient(rgb(255 255 255 / 18%) 1px, transparent 1px),
    linear-gradient(90deg, rgb(255 255 255 / 18%) 1px, transparent 1px);
  background-size: 42px 42px;
}

.login-brand,
.feature-list {
  position: relative;
  z-index: 1;
}

.brand-logo {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 42px;
  padding: 0 16px;
  border: 1px solid rgb(255 255 255 / 38%);
  border-radius: 8px;
  font-size: 18px;
  font-weight: 800;
  background: rgb(255 255 255 / 12%);
}

.login-brand h1 {
  max-width: 560px;
  margin-top: 26px;
  font-size: 44px;
  line-height: 1.18;
}

.login-brand p {
  margin-top: 16px;
  color: rgb(255 255 255 / 78%);
  font-size: 18px;
}

.feature-list {
  display: grid;
  max-width: 620px;
  margin-top: 56px;
  gap: 16px;
}

.feature-item {
  display: grid;
  grid-template-columns: 44px 1fr;
  align-items: center;
  gap: 14px;
  padding: 16px;
  border: 1px solid rgb(255 255 255 / 18%);
  border-radius: 8px;
  background: rgb(255 255 255 / 10%);
  backdrop-filter: blur(12px);

  .el-icon {
    width: 44px;
    height: 44px;
    border-radius: 8px;
    color: #0f766e;
    font-size: 24px;
    background: #e6fffb;
  }

  strong,
  span {
    display: block;
  }

  strong {
    margin-bottom: 5px;
    font-size: 16px;
  }

  span {
    color: rgb(255 255 255 / 74%);
  }
}

.login-card {
  align-self: center;
  width: min(470px, calc(100% - 64px));
  margin: 0 auto;
  padding: 38px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--panel);
  box-shadow: var(--shadow);
}

.login-card-head {
  margin-bottom: 28px;

  h2 {
    font-size: 28px;
  }

  p {
    margin-top: 8px;
    color: var(--muted);
  }
}

.login-submit {
  width: 100%;
}

.login-role-select {
  width: 100%;
}

.admin-shell {
  display: grid;
  grid-template-columns: 260px 1fr;
  min-height: 100vh;
  background: var(--bg);
  transition: grid-template-columns 0.22s ease;

  &.collapsed {
    grid-template-columns: 82px 1fr;

    .brand-copy,
    .nav-item span,
    .user-meta,
    .role-select {
      display: none;
    }

    .sidebar-header,
    .nav-item {
      justify-content: center;
    }

    .sidebar-footer {
      padding: 14px;
    }
  }

  &.dark {
    --bg: #111827;
    --panel: #182132;
    --panel-soft: #202b3d;
    --border: #334155;
    --text: #e5e7eb;
    --muted: #9ca3af;
    --shadow: 0 18px 46px rgb(0 0 0 / 24%);
  }
}

.sidebar {
  position: sticky;
  top: 0;
  display: flex;
  flex-direction: column;
  height: 100vh;
  overflow: hidden;
  color: #dbeafe;
  background: #13233a;
}

.sidebar-header {
  display: flex;
  align-items: center;
  gap: 12px;
  height: 72px;
  padding: 0 20px;
  border-bottom: 1px solid rgb(255 255 255 / 10%);
}

.brand-mark {
  display: inline-flex;
  flex: 0 0 38px;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: 8px;
  color: #fff;
  font-weight: 800;
  background: linear-gradient(135deg, var(--primary), var(--teal));
}

.brand-copy {
  strong,
  span {
    display: block;
  }

  strong {
    color: #fff;
    font-size: 18px;
  }

  span {
    margin-top: 2px;
    color: #a5b4fc;
    font-size: 12px;
  }
}

.sidebar-scroll {
  flex: 1;
}

.nav-list {
  display: grid;
  gap: 12px;
  padding: 16px 12px;
}

.nav-section {
  display: grid;
  gap: 6px;
}

.nav-section-title {
  padding: 8px 12px 4px;
  color: #91a4bd;
  font-size: 12px;
  font-weight: 700;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 12px;
  height: 42px;
  padding: 0 12px;
  border-radius: 8px;
  color: #bdd0e7;
  transition: background 0.16s ease, color 0.16s ease;

  .el-icon {
    font-size: 18px;
  }

  &.router-link-active,
  &:hover {
    color: #fff;
    background: rgb(37 99 235 / 42%);
  }
}

.sidebar-footer {
  padding: 16px;
  border-top: 1px solid rgb(255 255 255 / 10%);
}

.user-card {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 12px;
}

.user-meta {
  min-width: 0;

  strong,
  span {
    display: block;
  }

  strong {
    color: #fff;
  }

  span {
    margin-top: 3px;
    color: #a8b9d0;
    font-size: 12px;
  }
}

.role-select {
  width: 100%;
}

.main-panel {
  min-width: 0;
}

.top-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  padding: 0 24px;
  border-bottom: 1px solid var(--border);
  background: rgb(255 255 255 / 86%);
  backdrop-filter: blur(14px);
}

.dark .top-header {
  background: rgb(24 33 50 / 86%);
}

.header-left,
.header-right,
.toolbar-actions,
.hero-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.global-search {
  width: 260px;
}

.header-badge {
  display: inline-flex;
}

.header-user {
  display: grid;
  gap: 2px;
  padding-left: 10px;
  border-left: 1px solid var(--border);

  strong {
    font-size: 14px;
  }

  span {
    color: var(--muted);
    font-size: 12px;
  }
}

.content-area {
  padding: 24px;
}

.page-stack {
  display: grid;
  gap: 18px;
}

.hero-strip,
.page-toolbar,
.data-section,
.chart-panel,
.kanban-column,
.institution-card {
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--panel);
  box-shadow: 0 1px 2px rgb(15 23 42 / 4%);
}

.hero-strip {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 154px;
  padding: 26px;
  overflow: hidden;
  background:
    linear-gradient(100deg, rgb(37 99 235 / 10%), transparent 46%),
    linear-gradient(280deg, rgb(15 118 110 / 12%), transparent 38%),
    var(--panel);

  h1 {
    margin-top: 8px;
    font-size: 30px;
  }

  p {
    max-width: 580px;
    margin-top: 10px;
    color: var(--muted);
  }
}

.eyebrow {
  color: var(--teal);
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
}

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

.stat-card {
  display: flex;
  align-items: center;
  gap: 14px;
  min-height: 112px;
  padding: 18px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--panel);

  span,
  em {
    display: block;
  }

  span {
    color: var(--muted);
    font-size: 13px;
  }

  strong {
    display: block;
    margin-top: 8px;
    font-size: 28px;
  }

  em {
    margin-top: 6px;
    color: var(--green);
    font-size: 12px;
    font-style: normal;
  }
}

.stat-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 46px;
  height: 46px;
  border-radius: 8px;
  color: #fff;
  font-weight: 800;

  &.blue {
    background: var(--primary);
  }

  &.green {
    background: var(--green);
  }

  &.purple {
    background: var(--purple);
  }

  &.orange {
    background: var(--amber);
  }
}

.dashboard-grid {
  display: grid;
  grid-template-columns: 1.4fr 0.9fr;
  gap: 18px;
}

.content-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.45fr) minmax(360px, 0.55fr);
  gap: 18px;
}

.chart-panel,
.data-section {
  padding: 18px;
}

.table-pagination {
  display: flex;
  justify-content: flex-end;
  padding-top: 16px;
}

.department-form,
.institution-form,
.user-create-form {
  .el-select,
  .el-input-number {
    width: 100%;
  }
}

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

  h2 {
    font-size: 17px;
  }

  p {
    margin-top: 5px;
    color: var(--muted);
    font-size: 13px;
  }
}

.chart-canvas {
  width: 100%;
  height: 300px;
}

.page-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px;

  h1 {
    font-size: 24px;
  }

  p {
    margin-top: 8px;
    color: var(--muted);
  }
}

.filter-bar {
  display: grid;
  grid-template-columns: minmax(280px, 1fr) 180px 180px 96px;
  gap: 12px;
}

.admin-user-filter {
  grid-template-columns: minmax(220px, 1fr) 150px 150px 130px 130px 96px 96px;
}

.institution-filter {
  grid-template-columns: minmax(240px, 1fr) 150px 150px 150px 96px 96px;
}

.role-user-filter {
  grid-template-columns: minmax(260px, 1fr) 150px 150px 96px 96px;
}

.relation-filter {
  grid-template-columns: minmax(240px, 1fr) 140px 140px 130px 96px 96px;
}

.table-subtext {
  display: block;
  margin-top: 4px;
  color: var(--muted);
  font-size: 12px;
}

.kanban-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.kanban-column {
  min-height: 520px;
  padding: 16px;
  background: var(--panel-soft);
}

.kanban-title {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 14px;

  h2 {
    font-size: 16px;
  }
}

.task-card {
  display: grid;
  gap: 10px;
  margin-bottom: 12px;
  padding: 16px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--panel);

  span {
    color: var(--muted);
    font-size: 13px;
  }
}

.task-meta,
.institution-head,
.institution-metrics {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.institution-grid,
.settings-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.institution-card {
  display: grid;
  gap: 18px;
  padding: 18px;
}

.institution-head {
  h2 {
    font-size: 18px;
  }

  span {
    display: block;
    margin-top: 5px;
    color: var(--muted);
  }
}

.institution-metrics {
  gap: 12px;

  div {
    display: grid;
    flex: 1;
    gap: 4px;
    padding: 12px;
    border-radius: 8px;
    background: var(--panel-soft);
  }

  strong {
    font-size: 22px;
  }

  span {
    color: var(--muted);
    font-size: 12px;
  }
}

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

.module-filter {
  margin-bottom: 16px;
}

.ai-workbench {
  display: grid;
  grid-template-columns: minmax(420px, 0.85fr) minmax(0, 1.15fr);
  gap: 18px;
}

.profile-layout {
  display: grid;
  grid-template-columns: 320px minmax(0, 1fr);
  gap: 18px;
}

.profile-summary {
  display: grid;
  justify-items: center;
  align-content: start;
  gap: 12px;
  text-align: center;

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

.profile-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  width: 100%;
  margin-top: 12px;

  div {
    display: grid;
    gap: 4px;
    padding: 12px 8px;
    border-radius: 8px;
    background: var(--panel-soft);
  }

  strong {
    font-size: 20px;
  }

  span {
    color: var(--muted);
    font-size: 12px;
  }
}

@media (max-width: 1280px) {
  .stats-grid,
  .institution-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .dashboard-grid,
  .content-grid,
  .ai-workbench,
  .profile-layout,
  .settings-grid {
    grid-template-columns: 1fr;
  }
}