:root {
  --bg: #f3f5f7;
  --surface: #ffffff;
  --sidebar: #1b2430;
  --sidebar-text: #d5dde6;
  --sidebar-muted: #8e9bab;
  --sidebar-hover: rgba(255, 255, 255, 0.06);
  --sidebar-active: rgba(255, 255, 255, 0.12);
  --text: #1c2430;
  --text-muted: #5d6b7a;
  --border: #e2e7ed;
  --primary: #1f5c6b;
  --primary-strong: #174854;
  --danger: #8d3434;
  --danger-bg: #f8ecec;
  --shadow: 0 1px 2px rgba(20, 28, 38, 0.06), 0 8px 24px rgba(20, 28, 38, 0.04);
  --radius: 12px;
  --header-height: 64px;
  --sidebar-width: 272px;
  --font: "Segoe UI", system-ui, -apple-system, sans-serif;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
}

.brand-logo,
.brand-icon {
  display: block;
  height: auto;
  object-fit: contain;
  flex: 0 0 auto;
}

.brand-icon {
  width: 40px;
}

.login-screen {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px 16px;
}

.login-card {
  width: min(100%, 420px);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 32px 28px;
}

.login-brand {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 10px;
  margin-bottom: 28px;
}

.login-logo {
  width: 220px;
  max-width: 100%;
}

.login-brand p {
  margin: 2px 0 0;
  color: var(--text-muted);
  font-size: 0.92rem;
}

.login-card .form-label {
  font-size: 0.86rem;
  font-weight: 600;
}

.login-card .form-control {
  border-color: var(--border);
  min-height: 44px;
}

.login-card .form-control:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(31, 92, 107, 0.16);
}

.btn-primary {
  --bs-btn-bg: var(--primary);
  --bs-btn-border-color: var(--primary);
  --bs-btn-hover-bg: var(--primary-strong);
  --bs-btn-hover-border-color: var(--primary-strong);
  --bs-btn-active-bg: var(--primary-strong);
  --bs-btn-active-border-color: var(--primary-strong);
  --bs-btn-disabled-bg: var(--primary);
  --bs-btn-disabled-border-color: var(--primary);
  min-height: 44px;
  font-weight: 600;
}

.form-alert {
  display: none;
  margin-bottom: 16px;
  padding: 10px 12px;
  border-radius: 8px;
  background: var(--danger-bg);
  color: var(--danger);
  font-size: 0.92rem;
}

.form-alert.is-visible {
  display: block;
}

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

.app-sidebar {
  --bs-offcanvas-width: var(--sidebar-width);
  background: var(--sidebar);
  color: var(--sidebar-text);
}

.app-sidebar .offcanvas-header {
  padding: 20px 20px 8px;
}

.app-sidebar .offcanvas-title {
  color: #fff;
  font-weight: 600;
  letter-spacing: -0.02em;
}

.app-sidebar .btn-close {
  filter: invert(1);
  opacity: 0.75;
}

.app-sidebar .offcanvas-body {
  display: flex;
  flex-direction: column;
  align-items: stretch;
  height: auto;
  overflow-y: auto;
}

.sidebar-brand {
  display: flex;
  align-items: center;
  flex: 0 0 auto;
  height: auto;
  gap: 12px;
  padding: 8px 8px 18px;
  color: #fff;
  font-weight: 600;
  letter-spacing: -0.02em;
}

.offcanvas-brand {
  padding: 0;
  gap: 10px;
  min-width: 0;
}

.offcanvas-brand .brand-icon {
  width: 32px;
}

.nav-section {
  margin: 18px 12px 6px;
  color: var(--sidebar-muted);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.sidebar-link {
  display: block;
  margin: 2px 8px;
  padding: 9px 12px;
  border-radius: 8px;
  color: var(--sidebar-text);
  text-decoration: none;
}

.sidebar-link:hover {
  background: var(--sidebar-hover);
  color: #fff;
}

.sidebar-link.is-active {
  background: var(--sidebar-active);
  color: #fff;
  font-weight: 600;
}

.sidebar-link:focus-visible {
  outline: 2px solid #fff;
  outline-offset: 2px;
}

.app-main {
  min-width: 0;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

.app-header {
  min-height: var(--header-height);
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 12px 20px;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
}

.menu-button {
  color: var(--text);
  padding: 6px;
}

.app-header-title {
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.app-kicker {
  color: var(--text-muted);
  font-size: 0.75rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.app-header-title strong {
  font-size: 1rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.app-header-user {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 12px;
}

.user-name {
  font-weight: 600;
  line-height: 1.2;
}

.user-meta {
  color: var(--text-muted);
  font-size: 0.8rem;
}

.app-content {
  padding: 28px 20px 40px;
}

@media (min-width: 992px) {
  .app-shell {
    display: flex;
  }

  .app-sidebar.offcanvas-lg {
    position: sticky;
    top: 0;
    display: flex;
    flex-direction: column;
    flex: 0 0 var(--sidebar-width);
    width: var(--sidebar-width) !important;
    height: 100vh !important;
    visibility: visible;
    transform: none;
    background-color: var(--sidebar) !important;
    border-right: 0 !important;
  }

  .app-main {
    flex: 1;
  }
}

@media (max-width: 991.98px) {
  .user-copy {
    display: none;
  }
}

.dashboard-heading h1 {
  margin: 0 0 4px;
  font-size: 1.75rem;
  letter-spacing: -0.03em;
}

.dashboard-heading p,
.kpi-note {
  margin: 0;
  color: var(--text-muted);
  font-size: 0.88rem;
}

.dashboard-filters {
  display: flex;
  flex-wrap: wrap;
  align-items: end;
  gap: 12px 16px;
  margin: 20px 0;
  padding: 16px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.dashboard-filters .form-label {
  margin-bottom: 4px;
  font-size: 0.86rem;
  font-weight: 600;
}

.dashboard-filters .form-control {
  min-width: 11rem;
  min-height: 44px;
  border-color: var(--border);
}

.dashboard-filters .form-control:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(31, 92, 107, 0.16);
}

.dashboard-filter-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.dashboard-filter-actions .btn {
  min-height: 44px;
}

.dashboard-filter-hint {
  flex-basis: 100%;
  margin: 0;
  color: var(--text-muted);
  font-size: 0.85rem;
}

.dashboard-loading {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 16px;
  color: var(--text-muted);
}

.dashboard-loading[hidden],
.dashboard-empty[hidden],
#dashboardResults[hidden],
#dashboardError[hidden] {
  display: none !important;
}

#dashboardError:not([hidden]) {
  display: block;
}

.dashboard-empty {
  margin-bottom: 16px;
  padding: 12px 14px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface);
  color: var(--text-muted);
}

.kpi-card,
.panel-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.kpi-card {
  height: 100%;
  padding: 16px 18px;
}

.kpi-label {
  margin: 0;
  color: var(--text-muted);
  font-size: 0.8rem;
  font-weight: 600;
}

.kpi-value {
  margin: 8px 0 0;
  font-size: 1.6rem;
  font-weight: 650;
  letter-spacing: -0.03em;
  line-height: 1.1;
}

.kpi-note {
  margin-top: 8px;
}

.panel-card {
  padding: 16px 18px 8px;
}

.panel-card h2 {
  margin: 0 0 12px;
  font-size: 1.05rem;
}

.panel-card .table {
  --bs-table-bg: transparent;
}

.activity-actor {
  color: var(--text-muted);
  font-size: 0.78rem;
}

.status-meter {
  height: 6px;
  margin-top: 6px;
  border-radius: 99px;
  background: var(--bg);
  overflow: hidden;
}

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

.insight-card {
  padding-bottom: 16px;
}

.insight-summary {
  min-height: 1.2em;
  margin: 8px 0 12px;
  color: var(--text);
  font-size: 0.92rem;
}

.insight-empty {
  margin: 0;
  color: var(--text-muted);
}

.insight-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

.day-chart {
  display: flex;
  align-items: flex-end;
  gap: 3px;
  height: 148px;
  overflow-x: auto;
  padding-top: 4px;
}

.day-column {
  display: flex;
  flex: 1 0 8px;
  align-items: flex-end;
  min-width: 8px;
  height: 100%;
}

.day-column span {
  display: block;
  width: 100%;
  background: var(--primary);
  border-radius: 2px 2px 0 0;
}

.day-column.is-empty span {
  background: var(--border);
}

.day-column.is-peak span {
  background: var(--primary-strong);
}

.day-axis {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  margin-top: 6px;
  color: var(--text-muted);
  font-size: 0.78rem;
}

.rank-list {
  display: flex;
  flex-direction: column;
  gap: 14px;
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: rank;
}

.rank-list li {
  counter-increment: rank;
}

.rank-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 4px 12px;
}

.rank-head::before {
  content: counter(rank) ".";
  flex: 0 0 auto;
  color: var(--text-muted);
  font-size: 0.82rem;
  font-variant-numeric: tabular-nums;
}

.rank-name {
  flex: 1 1 auto;
  min-width: 0;
  overflow-wrap: anywhere;
  font-weight: 600;
}

.rank-value {
  flex: 0 0 auto;
  color: var(--text-muted);
  font-size: 0.85rem;
  font-variant-numeric: tabular-nums;
  text-align: right;
}

.rank-detail {
  margin: 2px 0 0 1.4rem;
  color: var(--text-muted);
  font-size: 0.82rem;
  overflow-wrap: anywhere;
}

.rank-meter {
  height: 6px;
  margin: 6px 0 0 1.4rem;
  overflow: hidden;
  border-radius: 99px;
  background: var(--bg);
}

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

@media (min-width: 1100px) {
  .insight-grid {
    grid-template-columns: 1fr 1fr;
  }
}