:root {
  color-scheme: dark;

  /* Core palette */
  --bg: #070a13;
  --panel: #0d1020;
  --surface: #0d1020;
  --surface-elevated: #12162a;
  --ink: #f8fafc;
  --muted: #94a3b8;
  --text-secondary: #cbd5e1;
  --text-muted: #64748b;
  --line: rgba(139, 92, 246, 0.25);
  --primary: #8b5cf6;
  --primary-2: rgba(139, 92, 246, 0.14);
  --magenta: #d946ef;
  --cyan: #06b6d4;
  --blue: #3b82f6;
  --success: #22c55e;
  --danger: #f43f5e;
  --warning: #facc15;
  --theory: #06b6d4;
  --daily: #d946ef;
  --weekly: #071a3d;

  /* Foundations extracted from the approved Reviews experience */
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 20px;
  --space-6: 24px;
  --page-gap: 14px;
  --page-content-offset: 66px;
  --radius-sm: 7px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius: 18px;
  --control-height: 38px;
  --shadow: 0 22px 70px rgba(0, 0, 0, 0.35);
  --shadow-card: 0 18px 46px rgba(0, 0, 0, 0.22);
  --glow-purple: 0 0 34px rgba(109, 48, 250, 0.34);
  --glow-cyan: 0 0 28px rgba(6, 182, 212, 0.22);
  --motion-fast: 160ms;
  --motion-standard: 240ms;
  --z-drawer: 120;

  /* Surface tokens — shared chrome (cards/drawers/sidebar/segmented controls) reads these instead of
     literal colors so a single [data-theme="light"] override below can retheme the whole app. */
  --body-edge: #050711;
  --sidebar-1: rgba(9, 11, 22, 0.96);
  --sidebar-2: rgba(5, 8, 18, 0.98);
  --sidebar-border: rgba(139, 92, 246, 0.22);
  --card-1: rgba(13, 16, 32, 0.96);
  --card-2: rgba(7, 10, 19, 0.97);
  --card-border: rgba(139, 92, 246, 0.2);
  --surface-soft: rgba(7, 10, 19, 0.5);
  --surface-soft-strong: rgba(7, 10, 19, 0.58);
  --modal-backdrop: rgba(2, 6, 23, 0.58);
  --drawer-backdrop: rgba(2, 6, 23, 0.58);
  --drawer-1: #0d1020;
  --drawer-2: #070a13;
  --drawer-border: rgba(139, 92, 246, 0.34);
  --drawer-footer-bg: rgba(7, 10, 19, 0.96);
  --progress-track-bg: rgba(30, 41, 59, 0.76);
  --icon-muted: rgba(203, 213, 225, 0.78);
  --input-bg: rgba(7, 10, 19, 0.55);
  --input-border: rgba(139, 92, 246, 0.28);
}

:root[data-theme="light"] {
  color-scheme: light;

  /* Same accent shift already validated in both Simulados Frozen's light theme and the Configurações
     Frozen prototype — purple/magenta/success/danger/warning stay the same hues, just deepened enough
     to hold contrast on a light surface (the dark-mode values wash out on white). */
  --bg: #f6f3fb;
  --panel: #ffffff;
  --surface: #ffffff;
  --surface-elevated: #ffffff;
  --ink: #211a33;
  --muted: #6b6178;
  --text-secondary: #4b4258;
  --text-muted: #7a7186;
  --line: rgba(57, 44, 89, 0.16);
  --primary: #7c3aed;
  --primary-2: rgba(124, 58, 237, 0.14);
  --magenta: #c026d3;
  --cyan: #0891b2;
  --blue: #2563eb;
  --success: #168a50;
  --danger: #d92d4e;
  --warning: #a16207;

  --body-edge: #f1ecf9;
  --sidebar-1: rgba(255, 255, 255, 0.96);
  --sidebar-2: rgba(247, 244, 252, 0.98);
  --sidebar-border: rgba(57, 44, 89, 0.14);
  --card-1: rgba(255, 255, 255, 0.98);
  --card-2: rgba(248, 246, 252, 0.99);
  --card-border: rgba(57, 44, 89, 0.145);
  --surface-soft: rgba(139, 92, 246, 0.06);
  --surface-soft-strong: rgba(139, 92, 246, 0.09);
  --modal-backdrop: rgba(39, 30, 57, 0.28);
  --drawer-backdrop: rgba(39, 30, 57, 0.28);
  --drawer-1: #ffffff;
  --drawer-2: #f8f6fc;
  --drawer-border: rgba(57, 44, 89, 0.18);
  --drawer-footer-bg: rgba(248, 246, 252, 0.98);
  --progress-track-bg: rgba(57, 44, 89, 0.1);
  --icon-muted: rgba(75, 66, 88, 0.78);
  --input-bg: #ffffff;
  --input-border: rgba(57, 44, 89, 0.22);
}

/* Shared primitives. Feature classes retain layout and semantic styling. */
.ds-card {
  border: 1px solid var(--card-border);
  border-radius: var(--radius-md);
  background:
    radial-gradient(circle at 16% 0%, rgba(139, 92, 246, 0.07), transparent 34%),
    linear-gradient(145deg, var(--card-1), var(--card-2));
  box-shadow: var(--shadow-card);
}

.ds-page-shell {
  display: grid;
  min-width: 0;
  gap: var(--page-gap);
  color: var(--ink);
}

.ds-page-header {
  margin-bottom: calc(var(--page-content-offset) - var(--page-gap));
}

.ds-grid {
  display: grid;
  min-width: 0;
  gap: var(--page-gap);
}

.ds-panel {
  display: flex;
  min-width: 0;
  flex-direction: column;
}

.ds-card-heading {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--ink);
  font-size: 13px;
  font-weight: 560;
  letter-spacing: 0;
  text-transform: uppercase;
}

.ds-section-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
}

.ds-chart-card {
  display: flex;
  min-width: 0;
  flex-direction: column;
}

.ds-chart {
  position: relative;
  display: flex;
  min-width: 0;
  flex: 1;
  flex-direction: column;
}

.ds-chart-plot {
  display: block;
  width: 100%;
  min-width: 0;
}

.ds-chart-legend {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  gap: var(--space-2);
  color: var(--icon-muted);
  font-size: 14px;
}

.ds-chart-swatch {
  width: 18px;
  height: 4px;
  flex: 0 0 auto;
  border-radius: 99px;
}

.ds-icon {
  display: inline-grid;
  width: 20px;
  height: 20px;
  flex: 0 0 auto;
  place-items: center;
  color: currentColor;
}

.ds-icon svg {
  width: 100%;
  height: 100%;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.ds-icon-button {
  display: inline-grid;
  width: 24px;
  height: 24px;
  min-height: 24px;
  padding: 0;
  border: 0;
  border-radius: var(--radius-md);
  place-items: center;
  background: transparent;
  color: var(--icon-muted);
  cursor: pointer;
  transition:
    color var(--motion-fast) ease,
    background var(--motion-fast) ease,
    box-shadow var(--motion-fast) ease,
    transform var(--motion-fast) ease;
}

.ds-icon-button svg {
  width: 16px;
  height: 16px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.ds-icon-button:hover,
.ds-icon-button:focus-visible {
  color: #c084fc;
  background: rgba(139, 92, 246, 0.12);
  box-shadow: 0 0 14px rgba(139, 92, 246, 0.18);
  transform: translateY(-1px);
}

.ds-status-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 26px;
  padding: 4px 11px;
  border: 1px solid rgba(139, 92, 246, 0.35);
  border-radius: 99px;
  background: var(--surface-soft-strong);
  color: #c4b5fd;
  font-size: 11px;
  font-weight: 520;
  text-transform: uppercase;
}

.ds-segmented {
  display: inline-flex;
  gap: var(--space-1);
  padding: 3px;
  border: 1px solid var(--card-border);
  border-radius: 10px;
  background: var(--surface-soft);
}

.ds-segmented-option {
  min-height: 28px;
  padding: 0 10px;
  border: 0;
  border-radius: var(--radius-md);
  background: transparent;
  color: var(--icon-muted);
  cursor: pointer;
  font-weight: 350;
}

.ds-segmented-option.active {
  color: var(--ink);
  background: rgba(139, 92, 246, 0.34);
}

.ds-table-scroll {
  overflow-x: auto;
}

.ds-data-table {
  width: 100%;
  border-collapse: collapse;
}

.ds-empty-state {
  display: grid;
  place-items: center;
  justify-items: center;
  align-content: center;
  gap: 10px;
  text-align: center;
}

.ds-progress-track {
  height: 8px;
  overflow: hidden;
  border-radius: 99px;
  background: var(--progress-track-bg);
}

.ds-progress-fill {
  display: block;
  height: 100%;
  max-width: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, #7c3aed, #d946ef, #06b6d4);
  box-shadow: 0 0 14px rgba(139, 92, 246, 0.38);
}

.ds-progress-ring {
  position: relative;
  display: grid;
  place-content: center;
  flex: 0 0 auto;
  border-radius: 50%;
  background: transparent;
}

.ds-progress-ring svg {
  position: absolute;
  inset: 0;
  z-index: 1;
  width: 100%;
  height: 100%;
  overflow: visible;
  transform: rotate(-90deg);
}

.ds-progress-ring strong,
.ds-progress-ring span {
  position: relative;
  z-index: 2;
  text-align: center;
}

.ds-drawer-backdrop {
  position: fixed;
  inset: 0;
  z-index: var(--z-drawer);
  display: flex;
  align-items: center;
}

.ds-drawer {
  max-height: calc(100vh - 32px);
  overflow-y: auto;
  overscroll-behavior: contain;
  color: var(--ink);
}

.ds-app-drawer-backdrop {
  justify-content: flex-end;
  padding: 16px;
  background: var(--drawer-backdrop);
  backdrop-filter: blur(8px);
  animation: ds-drawer-backdrop-in 180ms ease-out both;
}

.ds-app-drawer-backdrop--left {
  justify-content: flex-start;
}

.ds-app-drawer {
  display: grid;
  grid-template-rows: auto minmax(0, 1fr) auto;
  /* Sem coluna definida a trilha implícita cresce até o conteúdo mais largo (o corpo passava do painel e os contornos
     dos cartões e os botões do rodapé saíam pela direita). */
  grid-template-columns: minmax(0, 1fr);
  width: min(var(--ds-drawer-width, 560px), calc(100vw - 32px));
  height: calc(100vh - 32px);
  max-height: none;
  overflow: hidden;
  border: 1px solid var(--drawer-border);
  border-radius: 12px;
  background: linear-gradient(160deg, var(--drawer-1), var(--drawer-2) 72%);
  box-shadow: -24px 0 60px rgba(0, 0, 0, 0.42);
  animation: ds-drawer-panel-in 220ms ease-out both;
}

.ds-app-drawer-backdrop--left .ds-app-drawer {
  box-shadow: 24px 0 60px rgba(0, 0, 0, 0.42);
  animation-name: ds-drawer-panel-left-in;
}

.ds-app-drawer--small { --ds-drawer-width: 430px; }
.ds-app-drawer--medium { --ds-drawer-width: 560px; }
.ds-app-drawer--large { --ds-drawer-width: 760px; }
.ds-app-drawer--xlarge { --ds-drawer-width: 1120px; }

.ds-app-drawer-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 18px;
  padding: 22px 24px 18px;
  border-bottom: 1px solid var(--card-border);
}

.ds-app-drawer-heading { min-width: 0; }
.ds-app-drawer-heading h2 { margin: 0; color: var(--ink); font-size: 22px; font-weight: 520; line-height: 1.2; }
.ds-app-drawer-heading p { margin: 7px 0 0; color: var(--muted); font-size: 13px; line-height: 1.5; }

.ds-app-drawer-close {
  flex: 0 0 38px;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  color: var(--text-secondary);
  font-size: 23px;
}

.ds-app-drawer-body {
  min-height: 0;
  overflow: auto;
  overscroll-behavior: contain;
  padding: 20px 24px 24px;
}

.ds-app-drawer-footer {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 10px;
  padding: 14px 24px 16px;
  border-top: 1px solid var(--card-border);
  background: var(--drawer-footer-bg);
}

.ds-app-drawer-footer .dialog-actions {
  width: 100%;
  margin: 0;
}

body.drawer-open { overflow: hidden; }

/* Diálogo compacto (filtros de Questões/Revisões/Histórico, "+ Disciplina" do Edital): centralizado e do tamanho do
   conteúdo, como o popover de filtros de Desempenho, em vez de um painel lateral de ponta a ponta da tela. */
.ds-app-drawer-backdrop.ds-compact-backdrop { justify-content: center; }

.ds-app-drawer.ds-compact-dialog {
  height: auto;
  max-height: calc(100vh - 32px);
  box-shadow: 0 24px 70px rgba(0, 0, 0, 0.5);
  animation: ds-sheet-in 240ms cubic-bezier(0.2, 0.72, 0.2, 1) both;
}

/* Ancorado ao botão (desktop): mesmo escurecimento sem desfoque do filtro de Desempenho; no celular vira folha embaixo. */
.ds-app-drawer-backdrop.ds-anchored-backdrop {
  align-items: flex-start;
  justify-content: flex-start;
  padding: 0;
  background: rgba(2, 6, 23, 0.58);
  backdrop-filter: none;
}

html[data-theme="light"] .ds-app-drawer-backdrop.ds-anchored-backdrop { background: rgba(39, 30, 57, 0.28); }

.ds-app-drawer.ds-anchored {
  position: fixed;
  top: var(--anchor-top, 16px);
  left: var(--anchor-left, 16px);
  margin: 0;
  width: min(620px, calc(100vw - 32px));
  box-shadow: var(--shadow, 0 24px 70px rgba(0, 0, 0, 0.5));
}

@media (max-width: 900px) {
  .ds-app-drawer.ds-anchored {
    top: auto;
    right: 16px;
    bottom: max(16px, env(safe-area-inset-bottom));
    left: 16px;
    width: auto;
    max-height: calc(100dvh - 32px);
  }
}

.ds-app-drawer.ds-filter-dialog { --ds-drawer-width: 620px; }
.ds-app-drawer.ds-filter-dialog .form-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; }
.ds-app-drawer.ds-filter-dialog .form-grid .check-row { grid-column: 1 / -1; }

/* Rodapé padrão ("Limpar" + "Aplicar filtros", "Cancelar" + ação), com o mesmo tamanho dos botões do popover de Desempenho
   (38px, 13px, raio 8px) em qualquer largura. */
.ds-app-drawer.ds-compact-dialog .ds-app-drawer-footer .dialog-actions {
  flex-wrap: nowrap;
  justify-content: flex-end;
  gap: 8px;
}

.ds-app-drawer.ds-compact-dialog .ds-app-drawer-footer .dialog-actions > button {
  flex: 0 0 auto;
  width: auto;
  min-width: 0;
  min-height: 38px;
  box-sizing: border-box;
  padding: 8px 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  color: var(--ink);
  box-shadow: none;
  font-size: 13px;
  font-weight: 400;
  line-height: 1.2;
  cursor: pointer;
}

.ds-app-drawer.ds-compact-dialog .ds-app-drawer-footer .dialog-actions > button.primary {
  border-color: var(--primary);
  background: var(--primary);
  color: var(--ink);
}

@keyframes ds-sheet-in {
  from { opacity: 0; transform: translateY(16px) scale(0.98); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}

@keyframes ds-drawer-backdrop-in {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes ds-drawer-panel-in {
  from { opacity: 0; transform: translateX(22px); }
  to { opacity: 1; transform: translateX(0); }
}

@keyframes ds-drawer-panel-left-in {
  from { opacity: 0; transform: translateX(-22px); }
  to { opacity: 1; transform: translateX(0); }
}

@media (prefers-reduced-motion: reduce) {
  .ds-motion {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
  }

  .ds-app-drawer-backdrop,
  .ds-app-drawer { animation: none !important; }
}

@media (max-width: 840px) {
  .ds-page-header {
    margin-bottom: 20px;
  }

  .ds-app-drawer-backdrop { padding: 8px; }
  .ds-app-drawer {
    width: calc(100vw - 16px);
    height: calc(100vh - 16px);
    border-radius: 10px;
  }
  .ds-app-drawer.ds-filter-dialog .form-grid { grid-template-columns: minmax(0, 1fr); }
  .ds-app-drawer-header { padding: 18px 18px 15px; }
  .ds-app-drawer-body { padding: 18px; }
  .ds-app-drawer-footer { padding: 12px 18px 14px; }
}