/* Q-Cartinha | painel do cliente, contas e páginas de sistema */

.app-topo { background: var(--papel); border-bottom: 1px solid var(--linha); position: sticky; top: 0; z-index: 20; }
.app-topo__linha { display: flex; align-items: center; justify-content: space-between; gap: 16px; min-height: 68px; }
.app-nav { display: flex; align-items: center; gap: 4px; overflow-x: auto; scrollbar-width: none; }
.app-nav::-webkit-scrollbar { display: none; }
.app-nav a { padding: 8px 12px; border-radius: 8px; text-decoration: none; font-weight: 600; font-size: .9375rem; color: var(--tinta-suave); white-space: nowrap; }
.app-nav a:hover { color: var(--tinta); background: var(--papel-2); }
.app-nav a[aria-current="page"] { color: var(--tinta); box-shadow: inset 0 -2px 0 var(--carimbo); border-radius: 0; }
.app-nav__sair { margin: 0 0 0 8px; }
.app-nav__sair .link-botao { font-size: .9375rem; color: var(--tinta-suave); padding: 8px 4px; }

.app-main { padding: clamp(24px, 4vw, 48px) 0 64px; min-height: calc(100vh - 140px); }
.app-main .flash { margin-bottom: 20px; }
.app-rodape { border-top: 1px solid var(--linha); padding: 20px 0; }
.app-rodape a { text-decoration: none; color: var(--tinta-suave); }
.app-rodape a:hover { color: var(--carimbo); }

@media (max-width: 720px) {
  .app-topo__linha { flex-wrap: wrap; min-height: 0; padding-top: 12px; gap: 6px; }
  .app-nav { width: calc(100% + 2 * var(--gutter)); margin-inline: calc(-1 * var(--gutter)); padding: 0 var(--gutter) 4px; }
  .app-nav a { padding: 10px 10px; }
}

/* Cabeçalho de página do painel */
.pagina-topo { display: flex; flex-wrap: wrap; align-items: flex-end; justify-content: space-between; gap: 16px; margin-bottom: 28px; }
.pagina-topo h1 { font-size: clamp(1.875rem, 1.3rem + 1.8vw, 2.5rem); margin: 0; }
.pagina-topo p { margin: 6px 0 0; color: var(--tinta-suave); }
.voltar { display: inline-flex; align-items: center; gap: 6px; font-size: .9375rem; text-decoration: none; color: var(--tinta-suave); margin-bottom: 12px; }
.voltar:hover { color: var(--carimbo); }

/* Formulários estreitos (conta, auth) */
.form-estreito { max-width: 560px; }
.secao-form { padding: clamp(18px, 3vw, 28px); }
.secao-form + .secao-form { margin-top: 20px; }
.secao-form h2 { font-family: var(--f-texto); font-size: 1.125rem; font-weight: 600; margin-bottom: 4px; }
.secao-form > .dica { margin-bottom: 18px; }
.acoes-form { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; margin-top: 24px; }

/* Páginas de erro e manutenção */
.erro-pagina { min-height: 100vh; display: grid; place-items: center; padding: 48px 0; }
.erro-pagina__miolo { max-width: 560px; }
.erro-pagina__miolo .marca { margin-bottom: 40px; }
.erro-pagina__codigo { font-family: var(--f-display); font-size: 5rem; line-height: 1; color: var(--kraft); margin: 0 0 8px; }

/* Contas: formulário à esquerda, envelope à direita */
.auth { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); min-height: 100vh; }
.auth__lado { display: flex; flex-direction: column; padding: 28px clamp(20px, 6vw, 72px); }
.auth__miolo { width: 100%; max-width: 420px; margin: auto 0; padding: 48px 0 32px; }
.auth__miolo .flash { margin-bottom: 20px; }
.auth__titulo { font-size: clamp(2rem, 1.5rem + 1.6vw, 2.75rem); margin-bottom: 8px; }
.auth__form { margin-top: 28px; }
.auth__form .btn { margin-top: 24px; }
.auth__troca { margin-top: 28px; font-size: .9375rem; }
.auth__rodape a { color: inherit; }
.auth__envelope { background: var(--kraft-claro); display: grid; place-items: center; overflow: hidden; border-left: 1px solid var(--linha); }

.envelope-deco { position: relative; width: min(78%, 420px); aspect-ratio: 4 / 3; margin-top: 18%; }
.envelope-deco__carta {
  position: absolute; left: 7%; right: 7%; bottom: 22%; height: 118%;
  background: var(--folha); border-radius: 6px; box-shadow: var(--sombra); padding: 9% 9% 0;
  transform: rotate(-2deg);
}
.envelope-deco__carta p { font-size: clamp(1.4rem, 2.4vw, 2rem); color: var(--tinta); margin: 0 0 6%; }
.envelope-deco__carta span { display: block; height: 2px; background: var(--linha); margin: 0 0 9%; }
.envelope-deco__carta span.curta { width: 55%; }
.envelope-deco__assina { text-align: right; font-size: clamp(1.1rem, 2vw, 1.5rem) !important; color: var(--carimbo) !important; }
.envelope-deco__frente {
  position: absolute; inset: 0; border-radius: 8px; background: var(--kraft);
  clip-path: polygon(0 0, 50% 52%, 100% 0, 100% 100%, 0 100%);
  box-shadow: inset 0 -30px 60px -40px rgba(29, 36, 64, .35);
}
.envelope-deco__selo { position: absolute; right: 8%; bottom: 10%; transform: rotate(6deg); }
.envelope-deco__selo .selo { width: 64px; height: 64px; font-size: 2.4rem; padding: 5px; }

@media (max-width: 860px) {
  .auth { grid-template-columns: 1fr; }
  .auth__envelope { display: none; }
  .auth__miolo { margin: 0; padding-top: 40px; }
}

/* Avisos flutuantes (toast) */
.toasts { position: fixed; left: 50%; bottom: 20px; transform: translateX(-50%); z-index: 200; display: grid; gap: 8px; width: min(92vw, 420px); pointer-events: none; }
.toast { pointer-events: auto; background: var(--tinta); color: var(--folha); padding: 12px 16px; border-radius: var(--raio); box-shadow: var(--sombra); font-size: .9375rem; display: flex; gap: 10px; align-items: center; animation: toast-entra 300ms var(--curva); }
.toast--erro { background: var(--erro); }
@keyframes toast-entra { from { opacity: 0; transform: translateY(8px); } }