:root {
  --sidebar-width: 260px;
}

body {
  background: #f6f7f9;
}

.app-shell {
  min-height: 100vh;
}

.sidebar {
  position: fixed;
  inset: 0 auto 0 0;
  width: var(--sidebar-width);
  padding: 1.25rem;
  background: #18202a;
}

.sidebar .brand {
  color: #fff;
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 1.5rem;
  text-decoration: none;
}

.sidebar .nav-link {
  color: rgba(255, 255, 255, 0.78);
  border-radius: 0.375rem;
  padding: 0.65rem 0.75rem;
}

.sidebar .nav-link:hover {
  background: rgba(255, 255, 255, 0.08);
  color: #fff;
}

.content {
  padding: 1rem;
}

@media (min-width: 992px) {
  .content {
    margin-left: var(--sidebar-width);
    padding: 2rem;
  }
}

.page-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1.25rem;
  flex-wrap: wrap;
}

.page-header h1 {
  font-size: clamp(1.5rem, 2vw, 2rem);
  margin: 0;
}

.metric-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 1rem;
}

.metric,
.auth-panel,
.detail-panel,
.calculation-panel {
  background: #fff;
  border: 1px solid #e4e7ec;
  border-radius: 0.5rem;
  padding: 1rem;
}

.metric span {
  color: #667085;
  display: block;
  font-size: 0.875rem;
}

.metric strong {
  display: block;
  font-size: 1.5rem;
  margin-top: 0.35rem;
}

.calculation-panel {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
}

.calculation-panel strong,
.calculation-panel span {
  display: block;
}

.calculation-panel strong {
  font-size: 1.25rem;
}

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

.annexure-card {
  background: #fff;
  border: 1px solid #e4e7ec;
  border-radius: 0.5rem;
  padding: 1rem;
}

.annexure-card__header {
  align-items: flex-start;
  display: flex;
  gap: 0.75rem;
  justify-content: space-between;
  margin-bottom: 0.75rem;
}

.annexure-card__header strong,
.annexure-card__header span {
  display: block;
}

.annexure-card__header span {
  color: #667085;
  font-size: 0.875rem;
}

.annexure-card dl {
  display: grid;
  grid-template-columns: minmax(7rem, 40%) 1fr;
  margin: 0;
  row-gap: 0.5rem;
}

.annexure-card dt {
  color: #667085;
  font-weight: 600;
}

.annexure-card dd {
  margin: 0;
  text-align: right;
}

.auth-panel {
  max-width: 420px;
}

form p label {
  display: block;
  font-weight: 600;
  margin-bottom: 0.25rem;
}

form p input,
form p select,
form p textarea {
  width: 100%;
  border: 1px solid #ced4da;
  border-radius: 0.375rem;
  padding: 0.55rem 0.75rem;
}

.table-responsive {
  background: #fff;
  border: 1px solid #e4e7ec;
  border-radius: 0.5rem;
  padding: 0.25rem;
}

.search-row,
.action-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.search-row .form-control {
  min-width: min(100%, 22rem);
  flex: 1 1 18rem;
}

.action-row .btn,
.page-header .btn {
  min-height: 2.5rem;
}

@media (max-width: 575.98px) {
  .page-header,
  .action-row {
    align-items: stretch;
  }

  .page-header .btn,
  .action-row .btn,
  .search-row .btn {
    width: 100%;
  }
}