/* ==========================================================================
   Casa App — sistema de design
   Direção: azulejo português — azul-cobalto, marfim quente, dourado e
   terracota como acentos pontuais. Fraunces (títulos) + Work Sans (corpo)
   + JetBrains Mono (valores/dados).
   ========================================================================== */

:root {
  /* cor */
  --color-bg: #F7F3EC;
  --color-surface: #FFFFFF;
  --color-surface-tint: #EFE9DD;
  --color-ink: #26333D;
  --color-ink-soft: #5C6B75;

  --color-primary: #1F4E79;
  --color-primary-dark: #163A5C;
  --color-primary-tint: #E7EEF5;

  --color-accent: #B5533C;
  --color-gold: #C9A227;
  --color-gold-ink: #826919; /* versão escura do dourado, para texto/ícones — a original só serve decoração */
  --color-sage: #5F8767;
  --color-sage-ink: #507257; /* versão escura do verde, para texto/ícones */
  --color-danger: #B23A34;

  --color-border: #E4DDCE;

  /* tipografia */
  --font-display: 'Fraunces', Georgia, serif;
  --font-body: 'Work Sans', system-ui, -apple-system, sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, monospace;

  /* espaçamento — escala em múltiplos de 4px */
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 20px;
  --space-6: 24px;
  --space-8: 32px;

  /* layout */
  --radius-sm: 8px;
  --radius: 14px;
  --radius-lg: 20px;
  --spacing: 16px;
  --header-h: 88px;
  --nav-h: calc(64px + env(safe-area-inset-bottom, 0px));

  /* elevação — 3 níveis consistentes, usados em vez de sombras ad-hoc */
  --shadow-1: 0 1px 2px rgba(38, 51, 61, 0.05);
  --shadow-2: 0 1px 2px rgba(38, 51, 61, 0.06), 0 4px 12px rgba(38, 51, 61, 0.06);
  --shadow-3: 0 4px 8px rgba(38, 51, 61, 0.08), 0 12px 28px rgba(38, 51, 61, 0.10);
  --shadow-card: var(--shadow-2); /* mantido por compatibilidade com regras existentes */

  --ease: cubic-bezier(0.2, 0.7, 0.3, 1);
}

/* ---- tema escuro (contrastes validados, ver PLANO-DESIGN.md) ---- */

html[data-theme="dark"] {
  --color-bg: #141F29;
  --color-surface: #1C2A37;
  --color-surface-tint: #263749;
  --color-ink: #EAEDF0;
  --color-ink-soft: #9FB2C1;

  --color-primary: #5B93C4;
  --color-primary-dark: #3E6E99;
  --color-primary-tint: #24384A;

  --color-accent: #C97A62;
  --color-gold: #D9AE3E;
  --color-gold-ink: #E0B94A;
  --color-sage: #6FA07A;
  --color-sage-ink: #7FAE87;
  --color-danger: #E2726B;

  --color-border: #324658;

  --shadow-1: 0 1px 2px rgba(0,0,0,0.25);
  --shadow-2: 0 1px 2px rgba(0,0,0,0.3), 0 4px 12px rgba(0,0,0,0.25);
  --shadow-3: 0 4px 8px rgba(0,0,0,0.35), 0 12px 28px rgba(0,0,0,0.35);
}

/* Botões precisam de um azul mais escuro que os links, para o texto branco continuar legível */
html[data-theme="dark"] button[type="submit"],
html[data-theme="dark"] button:not([class]) {
  background: var(--color-primary-dark);
}

/* A imagem do cabeçalho já usa gradiente próprio — ajusta só o final para combinar com o modo escuro */
html[data-theme="dark"] .app-header {
  background:
    radial-gradient(circle at 18px 18px, rgba(255,255,255,0.05) 3px, transparent 3.5px) 0 0/36px 36px,
    linear-gradient(135deg, #1F4E79 0%, #0F2438 100%);
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { -webkit-text-size-adjust: 100%; }

body {
  font-family: var(--font-body);
  background: var(--color-bg);
  color: var(--color-ink);
  line-height: 1.45;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3 {
  font-family: var(--font-display);
  font-weight: 600;
  color: var(--color-ink);
  letter-spacing: -0.01em;
}

h2 { font-size: 1.5rem; margin-bottom: 12px; }
h3 { font-size: 1.05rem; margin: 18px 0 8px; color: var(--color-ink-soft); font-weight: 600; }

a { color: var(--color-primary); text-decoration: none; }
a:hover { text-decoration: underline; }

small { color: var(--color-ink-soft); }

/* ---- cabeçalho ---- */

.app-header {
  position: relative;
  min-height: var(--header-h);
  padding: calc(env(safe-area-inset-top, 0px) + 18px) var(--spacing) 16px;
  background:
    radial-gradient(circle at 18px 18px, rgba(255,255,255,0.07) 3px, transparent 3.5px) 0 0/36px 36px,
    linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  color: #fff;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.app-header-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.app-header h1 {
  font-family: var(--font-display);
  font-size: 1.6rem;
  font-weight: 700;
  color: #fff;
  letter-spacing: -0.02em;
}

.app-header-dot { color: var(--color-gold); }

.header-icon-btn {
  background: rgba(255,255,255,0.12);
  color: #fff;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  min-height: 44px;
}

.header-icon-btn:hover { background: rgba(255,255,255,0.2); }
.header-icon-btn:active { transform: none; }

.header-icon-btn.spinning .icon {
  animation: header-spin 0.5s linear;
}

@keyframes header-spin { to { transform: rotate(360deg); } }

@media (prefers-reduced-motion: reduce) {
  .header-icon-btn.spinning .icon { animation: none; }
}

.app-header-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.header-avatar-link {
  display: none; /* fica visível via JS só em páginas autenticadas */
  border-radius: 50%;
}

/* ---- avatares (foto de perfil ou iniciais) ---- */

.avatar {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  object-fit: cover;
  flex-shrink: 0;
  width: 36px;
  height: 36px;
  font-family: var(--font-display);
  font-weight: 700;
  background: var(--color-gold);
  color: var(--color-primary-dark);
}

.avatar-header { width: 40px; height: 40px; border: 2px solid rgba(255,255,255,0.5); }
.avatar-sm { width: 28px; height: 28px; font-size: 0.8rem; }
.avatar-lg { width: 84px; height: 84px; font-size: 2rem; }

.profile-avatar-block {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  margin: var(--space-4) 0;
}

/* ---- conteúdo ---- */

#view {
  padding: var(--spacing);
  padding-bottom: calc(var(--nav-h) + 24px);
  max-width: 640px;
  margin: 0 auto;
}

section > h2:first-child { margin-top: 4px; }

.error {
  color: var(--color-danger);
  font-size: 0.9rem;
  margin: 6px 0;
}

/* ---- formulários ---- */

form {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: var(--space-3);
  margin: var(--space-4) 0;
  align-items: start;
  background: var(--color-surface);
  padding: var(--space-4);
  border-radius: var(--radius);
  box-shadow: var(--shadow-1);
}

.field {
  display: flex;
  flex-direction: column;
  gap: 4px;
  min-width: 0;
}

.field-full { grid-column: 1 / -1; }
.field-actions { grid-column: 1 / -1; display: flex; gap: var(--space-2); margin-top: 2px; }

.field label {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--color-ink-soft);
}

.form-toolbar {
  background: transparent;
  box-shadow: none;
  padding: 0;
  grid-template-columns: 1fr auto auto;
  align-items: center;
}

input, select {
  font-family: var(--font-body);
  font-size: 0.95rem;
  padding: 11px 12px;
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-surface);
  color: var(--color-ink);
  width: 100%;
  min-width: 0;
}

input:focus, select:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-tint);
}

input.field-invalid, select.field-invalid {
  border-color: var(--color-danger);
}

input.field-invalid:focus, select.field-invalid:focus {
  box-shadow: 0 0 0 3px rgba(178, 58, 52, 0.15);
}

label {
  font-size: 0.9rem;
  color: var(--color-ink-soft);
}

button, .btn, .btn-outline {
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.95rem;
  padding: 11px 18px;
  min-height: 44px;
  border-radius: var(--radius-sm);
  border: none;
  cursor: pointer;
  transition: transform 0.06s ease, opacity 0.15s ease;
}

button:active { transform: scale(0.97); }

button[type="submit"], button:not([class]) {
  background: var(--color-primary);
  color: #fff;
}

button[type="submit"]:hover, button:not([class]):hover { opacity: 0.92; }

button:disabled { opacity: 0.6; cursor: default; transform: none; }

.btn-loading {
  position: relative;
  color: transparent !important;
}

.btn-loading::after {
  content: '';
  position: absolute;
  top: 50%; left: 50%;
  width: 15px; height: 15px;
  margin: -7.5px 0 0 -7.5px;
  border: 2px solid rgba(255,255,255,0.4);
  border-top-color: #fff;
  border-radius: 50%;
  animation: btn-spin 0.6s linear infinite;
}

.btn-outline.btn-loading::after {
  border-color: rgba(38,51,61,0.25);
  border-top-color: var(--color-ink);
}

@keyframes btn-spin { to { transform: rotate(360deg); } }

@media (prefers-reduced-motion: reduce) {
  .btn-loading::after { animation-duration: 1.2s; }
}

.btn-outline {
  background: transparent;
  border: 1.5px solid var(--color-border);
  color: var(--color-ink);
  margin-top: 4px;
}

/* full-width só quando é o único/último elemento de bloco (ex: Sair, Cancelar) */
section > .btn-outline:last-child,
form + .btn-outline {
  width: 100%;
  margin-top: 12px;
}

/* ---- skeleton de carregamento ---- */

@keyframes skeleton-pulse {
  0%, 100% { opacity: 0.55; }
  50% { opacity: 1; }
}

.skeleton-header, .skeleton-card {
  background: var(--color-surface-tint);
  border-radius: var(--radius);
  animation: skeleton-pulse 1.3s ease-in-out infinite;
}

.skeleton-header { height: 48px; margin-bottom: 16px; }
.skeleton-card { height: 76px; }

.skeleton-list { display: flex; flex-direction: column; gap: 8px; margin: 14px 0; }
.skeleton-line {
  height: 56px;
  background: var(--color-surface-tint);
  border-radius: var(--radius);
  animation: skeleton-pulse 1.3s ease-in-out infinite;
}

@media (prefers-reduced-motion: reduce) {
  .skeleton-line { animation: none; opacity: 0.7; }
}

/* ---- estados vazio / erro ---- */

.empty-state {
  text-align: center;
  padding: var(--space-8) var(--space-4);
  color: var(--color-ink-soft);
}

.empty-state-icon {
  width: 48px;
  height: 48px;
  margin: 0 auto var(--space-3);
  border-radius: 50%;
  background: var(--color-surface-tint);
  color: var(--color-ink-soft);
  display: flex;
  align-items: center;
  justify-content: center;
}

.empty-state-icon .icon { width: 24px; height: 24px; }

.empty-state p { margin-bottom: var(--space-3); }

.empty-state-error .empty-state-icon {
  background: rgba(178, 58, 52, 0.1);
  color: var(--color-danger);
}

.empty-hint {
  color: var(--color-ink-soft);
  font-size: 0.9rem;
  padding: var(--space-2) 0;
}

/* ---- micro-interações: entrada/saída de itens de lista ---- */

@keyframes item-enter {
  from { opacity: 0; transform: translateY(5px); }
  to { opacity: 1; transform: translateY(0); }
}

.task-list li, .day-group li, .category-group li {
  animation: item-enter 0.22s var(--ease) backwards;
}

.item-removing {
  transition: opacity 0.22s ease, transform 0.22s ease;
  opacity: 0 !important;
  transform: scale(0.97);
  pointer-events: none;
}

@media (prefers-reduced-motion: reduce) {
  .task-list li, .day-group li, .category-group li { animation: none; }
  .item-removing { transition: none; }
}

@media (prefers-reduced-motion: reduce) {
  .skeleton-header, .skeleton-card { animation: none; opacity: 0.7; }
}

/* ---- landing page ---- */

.landing-hero {
  text-align: center;
  padding: 24px 8px 32px;
  background:
    radial-gradient(circle at 12px 12px, var(--color-primary-tint) 2px, transparent 2.5px) 0 0/24px 24px;
  border-radius: var(--radius-lg);
  margin: 0 -4px 8px;
}

.landing-title {
  font-size: 1.9rem;
  line-height: 1.2;
  margin-bottom: 12px;
}

.landing-subtitle {
  color: var(--color-ink-soft);
  font-size: 1rem;
  max-width: 420px;
  margin: 0 auto 24px;
}

.landing-cta {
  display: flex;
  flex-direction: column;
  gap: 10px;
  max-width: 280px;
  margin: 0 auto;
}

.btn-cta {
  display: block;
  background: var(--color-primary);
  color: #fff;
  font-weight: 700;
  padding: 13px 20px;
  border-radius: var(--radius-sm);
  text-decoration: none;
}

.btn-cta:hover { text-decoration: none; opacity: 0.92; }

.landing-feature {
  border-left-color: var(--color-primary);
  justify-content: flex-start;
  align-items: flex-start;
  text-align: left;
  font-size: 0.9rem;
}

.landing-feature small {
  font-weight: 400;
  color: var(--color-ink-soft);
  line-height: 1.35;
}

.reason-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  margin: var(--space-4) 0;
}

.reason-item {
  display: flex;
  gap: var(--space-3);
  align-items: flex-start;
}

.reason-item .card-icon { flex-shrink: 0; }

.reason-item p {
  color: var(--color-ink-soft);
  font-size: 0.9rem;
  margin-top: 2px;
}

.landing-install-callout {
  background: var(--color-primary-tint);
  border-radius: var(--radius);
  padding: 16px;
  text-align: center;
  margin: 20px 0 8px;
}

.landing-install-callout p { margin-bottom: 8px; color: var(--color-ink); }

/* ---- toasts (feedback de ações) ---- */

#toast-container {
  position: fixed;
  bottom: calc(var(--nav-h) + 12px);
  left: 50%;
  transform: translateX(-50%);
  z-index: 100;
  display: flex;
  flex-direction: column;
  gap: 8px;
  align-items: center;
  width: calc(100% - 32px);
  max-width: 400px;
  pointer-events: none;
}

.toast {
  background: var(--color-ink);
  color: #fff;
  padding: 10px 18px;
  border-radius: 999px;
  font-size: 0.88rem;
  font-weight: 600;
  box-shadow: 0 4px 16px rgba(0,0,0,0.18);
  opacity: 0;
  transform: translateY(8px);
  transition: opacity 0.2s ease, transform 0.2s ease;
}

.toast-visible { opacity: 1; transform: translateY(0); }
.toast-error { background: var(--color-danger); }

@media (prefers-reduced-motion: reduce) {
  .toast { transition: opacity 0.01ms; }
}

/* ---- transição suave ao mudar de página (a classe é reaplicada via JS no router.js) ---- */

#view.view-enter {
  animation: view-fade-in 0.18s ease;
}

@keyframes view-fade-in {
  from { opacity: 0; transform: translateY(4px); }
  to { opacity: 1; transform: translateY(0); }
}

@media (prefers-reduced-motion: reduce) {
  #view.view-enter { animation: none; }
}

/* ---- sistema de ícones ---- */

.icon {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  vertical-align: -4px;
}

.icon-inline {
  width: 16px;
  height: 16px;
  vertical-align: -2.5px;
  margin-right: 2px;
}

.icon-danger { color: var(--color-danger); }
.icon-gold { color: var(--color-gold-ink); }
.icon-success { color: var(--color-sage-ink); }

/* ---- cartões do dashboard, redesenhados ---- */

.card {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 6px;
}

.card-icon {
  width: 34px;
  height: 34px;
  border-radius: var(--radius-sm);
  background: var(--color-primary-tint);
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 2px;
}

.card-icon .icon { width: 19px; height: 19px; vertical-align: 0; }

.card-label { line-height: 1.25; }

.dashboard-sub { display: flex; align-items: center; gap: 4px; color: var(--color-ink-soft); }

/* ---- 'mais': ícone à esquerda de cada item ---- */

.more-item {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.more-item-icon {
  width: 30px;
  height: 30px;
  border-radius: var(--radius-sm);
  background: var(--color-primary-tint);
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.more-item-icon .icon { width: 16px; height: 16px; vertical-align: 0; }

/* ---- indicador de prioridade (tarefas) ---- */

.priority-dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  margin-right: 3px;
}

.priority-alta { background: var(--color-danger); }
.priority-media { background: var(--color-gold); }
.priority-baixa { background: var(--color-sage); }

/* ---- ações por item (editar/apagar) ---- */

.item-actions {
  display: flex;
  gap: 2px;
  flex-shrink: 0;
}

.item-actions button {
  background: transparent;
  color: var(--color-ink-soft);
  min-width: 44px;
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0;
}

.item-actions button:hover { color: var(--color-primary); }

/* botões pequenos de ícone (apagar, etc.) dentro de listas — alvo de toque ≥44px */
li button, .task-list button, .day-group button, .category-group button {
  background: transparent;
  color: var(--color-ink-soft);
  font-size: 1rem;
  min-width: 44px;
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0;
}

/* ---- dashboard: grelha de cartões ---- */

.card-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin: 16px 0;
}

.card {
  position: relative;
  background: var(--color-surface);
  border-radius: var(--radius);
  padding: 16px 14px;
  min-height: 76px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 8px;
  text-decoration: none;
  color: var(--color-ink);
  font-weight: 600;
  font-size: 0.95rem;
  box-shadow: var(--shadow-1);
  border-left: 3px solid var(--color-primary);
  transition: box-shadow 0.18s var(--ease), transform 0.18s var(--ease);
}

.card:hover, .card:focus-visible {
  text-decoration: none;
  box-shadow: var(--shadow-3);
  transform: translateY(-2px);
}

.card:active { transform: translateY(0); box-shadow: var(--shadow-2); }

/* variação de cor da faixa por posição, só decorativa (assinatura "azulejo") */
.card:nth-of-type(2n) { border-left-color: var(--color-accent); }
.card:nth-of-type(3n) { border-left-color: var(--color-gold); }
.card:nth-of-type(4n) { border-left-color: var(--color-sage); }

/* ---- badges ---- */

.badge {
  align-self: flex-start;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--color-ink-soft);
  background: var(--color-surface-tint);
  padding: 3px 8px;
  border-radius: 20px;
}

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

/* ---- listas: tarefas, calendário, despensa ---- */

.task-list { list-style: none; }

.task-list li,
.day-group li,
.more-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: var(--color-surface);
  border-radius: var(--radius);
  padding: 12px 14px;
  margin-bottom: 8px;
  border-left: 3px solid transparent;
  box-shadow: var(--shadow-card);
  list-style: none;
}

.task-list li.overdue { border-left-color: var(--color-danger); }

.pantry-expired { border-left-color: var(--color-danger) !important; }
.pantry-soon { border-left-color: var(--color-gold) !important; }

.day-group, .category-group { margin-bottom: 8px; }

.day-group h3, .category-group h3 {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--color-ink-soft);
  margin: 16px 0 6px;
}

/* ---- 'mais' ---- */

.more-list { display: flex; flex-direction: column; gap: 8px; margin: 14px 0; }
.more-item { font-weight: 600; font-size: 1rem; color: var(--color-ink); }

/* ---- passos de instalação ---- */

.install-steps {
  list-style: none;
  margin: 12px 0 20px;
}

.install-steps li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 10px 0;
  border-bottom: 1px solid var(--color-border);
}

.install-num {
  flex-shrink: 0;
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: var(--color-primary);
  color: #fff;
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 0.8rem;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* ---- valores monetários / dados ---- */

.bar-row {
  display: grid;
  grid-template-columns: 96px 1fr 64px;
  align-items: center;
  gap: 10px;
  margin: 6px 0;
  font-size: 0.85rem;
}

.bar-row > span:last-child {
  font-family: var(--font-mono);
  text-align: right;
  color: var(--color-ink-soft);
}

.bar-track {
  background: var(--color-surface-tint);
  border-radius: 6px;
  height: 10px;
  overflow: hidden;
  cursor: default;
}

.bar-fill {
  background: linear-gradient(90deg, var(--color-primary-dark), var(--color-primary));
  height: 100%;
  border-radius: 6px;
  width: 0; /* a largura real é definida inline; a animação parte de 0 */
  animation: bar-grow 0.5s var(--ease) forwards;
}

@keyframes bar-grow {
  from { width: 0; }
  to { width: var(--bar-target-width, 100%); }
}

.bar-fill.over { background: linear-gradient(90deg, #8C2B26, var(--color-danger)); }

@media (prefers-reduced-motion: reduce) {
  .bar-fill { animation: none; }
}

.positive { color: var(--color-sage-ink); font-family: var(--font-mono); }
.negative { color: var(--color-danger); font-family: var(--font-mono); }

/* ---- barra de navegação inferior ---- */

.app-nav {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: var(--color-surface);
  border-top: 1px solid var(--color-border);
  padding: 6px 4px calc(6px + env(safe-area-inset-bottom, 0px));
  box-shadow: 0 -2px 12px rgba(38, 51, 61, 0.06);
  z-index: 10;
}

.app-nav.visible {
  display: flex;
  justify-content: space-around;
}

.nav-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 3px;
  padding: 6px 8px;
  min-height: 44px;
  color: var(--color-ink-soft);
  text-decoration: none;
  flex: 1;
  border-radius: var(--radius-sm);
}

.nav-item:hover { text-decoration: none; }

.nav-icon { width: 22px; height: 22px; }

.nav-label { font-size: 0.68rem; font-weight: 600; }

.nav-item.active { color: var(--color-primary); }
.nav-item.active .nav-icon { color: var(--color-primary); }

/* ---- acessibilidade / foco visível ---- */

a:focus-visible, button:focus-visible, input:focus-visible, select:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; animation: none !important; }
}

/* ---- ecrãs largos: centra e dá respiro ---- */

@media (min-width: 640px) {
  .app-header { padding-left: calc((100% - 640px) / 2 + var(--spacing)); padding-right: calc((100% - 640px) / 2 + var(--spacing)); }
  .app-nav { max-width: 640px; left: 50%; transform: translateX(-50%); border-radius: var(--radius-lg) var(--radius-lg) 0 0; border-left: 1px solid var(--color-border); border-right: 1px solid var(--color-border); }
}