/* ============================================================
   CASCA DA FERRAMENTA — layout sobre os tokens do Design System.
   Regra: nenhuma cor/fonte/raio hardcoded; sempre var(--token). (P8, RNF-07)
   ============================================================ */

/* -------- App shell -------- */
.app-header {
  height: var(--header-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--s-4);
  padding: 0 var(--s-6);
  background: var(--bg-surface);
  border-bottom: 1px solid var(--border-default);
  position: sticky;
  top: 0;
  z-index: 20;
}
.app-header__left { display: flex; align-items: center; gap: var(--s-3); }
.app-header__brand { display: inline-flex; align-items: center; }
.app-header__sep { width: 1px; height: 24px; background: var(--border-default); }
.app-header__product { font-weight: var(--fw-semibold); color: var(--text-primary); }
.app-header__right { display: flex; align-items: center; gap: var(--s-3); }
.app-header__email { display: none; }
@media (min-width: 640px) { .app-header__email { display: inline; } }
.app-header__nav-link { color: var(--text-secondary); text-decoration: none; }
.app-header__nav-link:hover { color: var(--text-primary); }

/* -------- Lista de templates (RF-18) -------- */
.tpl-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--s-3);
  padding: var(--s-3) 0;
  border-bottom: 1px solid var(--border-subtle);
}
.tpl-row:last-child { border-bottom: 0; }

.app-main {
  max-width: var(--content-max);
  margin: 0 auto;
  padding: var(--s-7) var(--s-6) var(--s-10);
}

/* -------- Utilitários de layout -------- */
.stack { display: flex; flex-direction: column; gap: var(--s-4); }
.cluster { display: flex; flex-wrap: wrap; align-items: center; gap: var(--s-3); }
.spread { display: flex; align-items: center; justify-content: space-between; gap: var(--s-4); }
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: var(--s-4); }
@media (max-width: 720px) { .grid-2 { grid-template-columns: 1fr; } }

.page-head { display: flex; align-items: flex-end; justify-content: space-between; gap: var(--s-4); margin-bottom: var(--s-6); }
.section { margin-bottom: var(--s-7); }
.section__title { margin-bottom: var(--s-4); }

/* -------- Login -------- */
.login {
  min-height: calc(100vh - var(--s-10));
  display: flex;
  align-items: center;
  justify-content: center;
}
.login__card { width: 100%; max-width: 380px; text-align: center; display: flex; flex-direction: column; gap: var(--s-4); align-items: center; }
.login__logo { margin-bottom: var(--s-2); }
.login__title { margin: 0; }
.login__sub { margin: 0; }
.login__divider { width: 100%; margin: var(--s-2) 0; }
.login__hint { margin: 0; }
.login .alert { text-align: left; width: 100%; }
.login form { width: 100%; }
.login__form { text-align: left; }

/* -------- Lista de OEDs -------- */
.oed-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: var(--s-4); }
.oed-card { display: flex; flex-direction: column; gap: var(--s-3); }
.oed-card__thumb {
  aspect-ratio: 16 / 10;
  border-radius: var(--r-md);
  background: var(--bg-subtle);
  border: 1px solid var(--border-subtle);
  object-fit: cover;
  width: 100%;
}
.oed-card__thumb--empty { display: flex; align-items: center; justify-content: center; color: var(--text-muted); }
.oed-card__title { font-weight: var(--fw-semibold); color: var(--text-primary); }
.oed-card__meta { color: var(--text-muted); }
.oed-card__actions { display: flex; gap: var(--s-2); margin-top: auto; }

.empty-state {
  text-align: center;
  padding: var(--s-10) var(--s-6);
  border: 1px dashed var(--border-strong);
  border-radius: var(--r-lg);
  background: var(--bg-subtle);
}
.empty-state__icon { width: 40px; height: 40px; margin: 0 auto var(--s-3); color: var(--text-muted); }

/* -------- Editor -------- */
/* Coluna única: todas as seções empilhadas, aproveitando a largura da tela. */
.editor-stack { display: flex; flex-direction: column; gap: var(--s-6); }

.editor__toolbar { display: flex; flex-wrap: wrap; gap: var(--s-2); margin-bottom: var(--s-3); }
.tool-btn[aria-pressed="true"] { background: var(--bk-600); color: var(--text-inverse); border-color: var(--bk-700); }

.canvas-stage {
  border: 1px solid var(--border-default);
  border-radius: var(--r-lg);
  background: var(--bg-subtle);
  overflow: hidden;
  padding: var(--s-3);
  display: flex;
  justify-content: center;
  align-items: center;
}
/* A imagem encaixa por inteiro (largura E altura) preservando a proporção, sem
   rolagem. O canvas tem proporção intrínseca (atributos = dims naturais), então
   só os max-* já o reduzem sem deformar; a caixa exibida = bitmap (scaleX==scaleY),
   mantendo o mapeamento de cliques exato. */
#oed-canvas {
  max-width: 100%;
  max-height: 70vh;
  width: auto;
  height: auto;
  display: block;
  cursor: crosshair;
}

.canvas-hint {
  margin-top: var(--s-2);
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  color: var(--text-secondary);
  min-height: 1.4em;
}

.dropzone {
  border: 1px dashed var(--border-strong);
  border-radius: var(--r-lg);
  background: var(--bg-subtle);
  padding: var(--s-8) var(--s-6);
  text-align: center;
  display: flex;
  flex-direction: column;
  gap: var(--s-3);
  align-items: center;
}
.preview-img {
  max-width: 100%;
  max-height: 220px;
  align-self: center;     /* neutraliza o stretch do .field (flex-column) */
  object-fit: contain;    /* segurança extra contra deformação */
  border-radius: var(--r-md);
  border: 1px solid var(--border-default);
}

/* Popups em accordion (largura total) — clicar no título abre/recolhe.
   Cabeçalho com fundo distinto e fonte maior; corpo branco → contraste claro. */
.popups-list { display: flex; flex-direction: column; gap: var(--s-3); }
.popup-card { padding: 0; overflow: hidden; }
.popup-card.is-open { border-color: var(--bk-600); box-shadow: var(--shadow-focus); }
.popup-card__toggle {
  display: flex; align-items: center; justify-content: space-between; gap: var(--s-3);
  width: 100%; min-height: 48px; padding: var(--s-3) var(--s-5);
  text-align: left; cursor: pointer;
  font-size: var(--fs-md); font-weight: var(--fw-semibold); color: var(--text-primary);
  background: var(--bg-subtle);
  transition: background var(--dur-fast) var(--ease-standard);
}
.popup-card__toggle:hover { background: var(--bg-hover); }
.popup-card.is-open .popup-card__toggle { background: var(--bk-50); color: var(--bk-800); }
.popup-card__title { display: inline-flex; align-items: center; gap: var(--s-2); font-size: var(--fs-md); }
.popup-card__chev { font-size: var(--fs-lg); color: var(--text-secondary); transition: transform var(--dur-fast) var(--ease-standard); }
.popup-card.is-open .popup-card__chev { color: var(--bk-700); }
.popup-card__toggle[aria-expanded="true"] .popup-card__chev { transform: rotate(180deg); }
.popup-card__body {
  display: flex; flex-direction: column; gap: var(--s-4);
  padding: var(--s-5);
  background: var(--bg-surface);
  border-top: 1px solid var(--border-default);
}
.popup-card__foot { display: flex; justify-content: flex-end; }

/* Cor */
.color-field { display: flex; align-items: center; gap: var(--s-2); }
input[type="color"].color-input {
  width: 44px; height: 36px; padding: 2px;
  border: 1px solid var(--border-default);
  border-radius: var(--r-md);
  background: var(--bg-surface);
  cursor: pointer;
}

/* Erros de formulário no topo */
.form-errors { margin-bottom: var(--s-5); }
.form-errors ul { margin: var(--s-2) 0 0; padding-left: var(--s-5); }

/* Toast de confirmação (fixo, sempre visível) */
.toast {
  position: fixed;
  right: var(--s-6);
  bottom: var(--s-6);
  z-index: 1000;
  padding: var(--s-3) var(--s-5);
  background: var(--bg-inverse);
  color: var(--text-inverse);
  border-radius: var(--r-md);
  box-shadow: var(--shadow-lg);
  font-size: var(--fs-sm);
  font-weight: var(--fw-medium);
  opacity: 0;
  transform: translateY(8px);
  transition: opacity var(--dur-normal) var(--ease-standard),
              transform var(--dur-normal) var(--ease-standard);
  pointer-events: none;
}
.toast.is-visible { opacity: 1; transform: none; }

/* sr-only */
.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
}