/* Material Design 3 — tokens derivados da cor de marca (D61D22) */
:root {
  --md-primary: #ba1b1f;
  --md-on-primary: #ffffff;
  --md-primary-container: #ffdad6;
  --md-on-primary-container: #410002;

  --md-secondary: #775653;
  --md-on-secondary: #ffffff;
  --md-secondary-container: #ffdad6;
  --md-on-secondary-container: #2c1512;

  --md-surface: #fffbff;
  --md-surface-dim: #e7d6d5;
  --md-surface-container-lowest: #ffffff;
  --md-surface-container-low: #fff1ef;
  --md-surface-container: #fceae9;
  --md-surface-container-high: #f7e4e3;
  --md-surface-container-highest: #f1dedd;
  --md-on-surface: #201a19;
  --md-on-surface-variant: #534342;

  --md-outline: #857370;
  --md-outline-variant: #d8c2bf;

  --md-error: #ba1a1a;
  --md-on-error: #ffffff;
  --md-error-container: #ffdad6;
  --md-on-error-container: #410002;

  --md-ok: #2e6a41;
  --md-ok-container: #b6f2c1;
  --md-atencao: #7a5900;
  --md-atencao-container: #ffdf9b;

  --md-shape-xs: 4px;
  --md-shape-sm: 8px;
  --md-shape-md: 12px;
  --md-shape-lg: 16px;
  --md-shape-full: 999px;

  --md-elevation-1: 0 1px 2px rgba(32, 26, 25, 0.15), 0 1px 3px 1px rgba(32, 26, 25, 0.08);
  --md-elevation-3: 0 1px 3px rgba(32, 26, 25, 0.18), 0 4px 8px 3px rgba(32, 26, 25, 0.1);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --md-primary: #ffb4ab;
    --md-on-primary: #690005;
    --md-primary-container: #93000a;
    --md-on-primary-container: #ffdad6;

    --md-secondary: #e7bdb8;
    --md-on-secondary: #442926;
    --md-secondary-container: #5d3f3b;
    --md-on-secondary-container: #ffdad6;

    --md-surface: #171211;
    --md-surface-dim: #171211;
    --md-surface-container-lowest: #120d0c;
    --md-surface-container-low: #201a19;
    --md-surface-container: #241e1d;
    --md-surface-container-high: #2f2827;
    --md-surface-container-highest: #3a3332;
    --md-on-surface: #ede0de;
    --md-on-surface-variant: #d8c2bf;

    --md-outline: #a08c89;
    --md-outline-variant: #534342;

    --md-error: #ffb4ab;
    --md-on-error: #690005;
    --md-error-container: #93000a;
    --md-on-error-container: #ffdad6;

    --md-ok: #9cd6a8;
    --md-ok-container: #16522a;
    --md-atencao: #f0c34d;
    --md-atencao-container: #5c4300;
  }
}
:root[data-theme="dark"] {
  --md-primary: #ffb4ab;
  --md-on-primary: #690005;
  --md-primary-container: #93000a;
  --md-on-primary-container: #ffdad6;
  --md-secondary: #e7bdb8;
  --md-on-secondary: #442926;
  --md-secondary-container: #5d3f3b;
  --md-on-secondary-container: #ffdad6;
  --md-surface: #171211;
  --md-surface-dim: #171211;
  --md-surface-container-lowest: #120d0c;
  --md-surface-container-low: #201a19;
  --md-surface-container: #241e1d;
  --md-surface-container-high: #2f2827;
  --md-surface-container-highest: #3a3332;
  --md-on-surface: #ede0de;
  --md-on-surface-variant: #d8c2bf;
  --md-outline: #a08c89;
  --md-outline-variant: #534342;
  --md-error: #ffb4ab;
  --md-on-error: #690005;
  --md-error-container: #93000a;
  --md-on-error-container: #ffdad6;
  --md-ok: #9cd6a8;
  --md-ok-container: #16522a;
  --md-atencao: #f0c34d;
  --md-atencao-container: #5c4300;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: "Roboto", -apple-system, "Segoe UI", Arial, sans-serif;
  background: var(--md-surface);
  color: var(--md-on-surface);
}

a { color: var(--md-primary); }

/* ---------- topbar ---------- */

header.topbar {
  background: var(--md-primary);
  color: var(--md-on-primary);
  padding: 14px 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
}
header.topbar h1 { font-size: 16px; margin: 0; font-weight: 500; letter-spacing: 0.15px; }
header.topbar .store-name { font-size: 13px; opacity: 0.85; }
header.topbar .actions { display: flex; gap: 4px; align-items: center; }
/* botões de texto sobre a superfície colorida do topbar: cor on-primary em vez de primary */
header.topbar .text-btn { color: var(--md-on-primary); }
header.topbar .text-btn:hover { background: rgba(255, 255, 255, 0.12); }

/* ---------- botões (hierarquia M3: filled = ação principal, text = tudo o mais) ---------- */

button, .btn {
  font: inherit;
  font-weight: 500;
  font-size: 14px;
  letter-spacing: 0.1px;
  border: none;
  border-radius: var(--md-shape-full);
  padding: 10px 20px;
  cursor: pointer;
  background: var(--md-primary);
  color: var(--md-on-primary);
  transition: background-color 0.15s ease;
}
button:hover, .btn:hover { background: color-mix(in srgb, var(--md-primary) 88%, black); }
button:disabled { opacity: 0.38; cursor: not-allowed; }

/* Text button — sem preenchimento, sem borda: usado pra qualquer ação que
   não seja A ação principal da tela (editar, cancelar, ativar/desativar,
   encerrar, recusar, abas, links). Isso é o pedido de "sem box, texto
   clicável" — não um botão fantasma com borda, texto puro com estado de
   hover sutil (tonal state-layer), do jeito que M3 define "text button". */
.text-btn {
  background: transparent;
  color: var(--md-primary);
  padding: 8px 12px;
  border-radius: var(--md-shape-full);
}
.text-btn:hover { background: color-mix(in srgb, var(--md-primary) 8%, transparent); }
.text-btn.on-error { color: var(--md-error); }
.text-btn.on-error:hover { background: color-mix(in srgb, var(--md-error) 8%, transparent); }

/* mantidos por compatibilidade com HTML/JS existente — mapeados pra text-btn */
button.secondary, button.ghost { background: transparent; color: var(--md-primary); border: none; padding: 8px 12px; }
button.secondary:hover, button.ghost:hover { background: color-mix(in srgb, var(--md-primary) 8%, transparent); }

/* ---------- aviso de "agindo como loja" (modo dev) ---------- */

.dev-banner {
  background: var(--md-atencao-container);
  color: var(--md-atencao);
  padding: 10px 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  font-size: 13px;
  font-weight: 500;
}
.dev-banner .text-btn { color: var(--md-atencao); }
.dev-banner .text-btn:hover { background: color-mix(in srgb, var(--md-atencao) 12%, transparent); }

main { max-width: 1000px; margin: 0 auto; padding: 12px 12px 60px; }

/* ---------- abas (M3 primary tabs: indicador embaixo, sem preenchimento) ---------- */

nav.tabs {
  display: flex;
  gap: 4px;
  overflow-x: auto;
  margin: 12px 0;
  border-bottom: 1px solid var(--md-outline-variant);
}
nav.tabs button {
  background: none;
  color: var(--md-on-surface-variant);
  border-radius: 0;
  padding: 10px 16px;
  font-weight: 500;
  white-space: nowrap;
  border-bottom: 3px solid transparent;
}
nav.tabs button.active { color: var(--md-primary); border-bottom-color: var(--md-primary); }
nav.tabs button:hover { background: color-mix(in srgb, var(--md-primary) 6%, transparent); }
nav.tabs .badge {
  background: var(--md-error); color: var(--md-on-error); border-radius: var(--md-shape-full); font-size: 11px;
  padding: 1px 7px; margin-left: 6px; font-weight: 700;
}

section.panel { display: none; }
section.panel.active { display: block; }

/* ---------- superfícies ---------- */

.card {
  background: var(--md-surface-container-low);
  border: 1px solid var(--md-outline-variant);
  border-radius: var(--md-shape-md);
  padding: 16px;
  margin-bottom: 12px;
}

.product-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(230px, 1fr));
  gap: 12px;
}

.product-card {
  display: flex; flex-direction: column; gap: 6px;
  background: var(--md-surface-container-low);
  border: 1px solid var(--md-outline-variant);
  border-radius: var(--md-shape-md);
  padding: 12px;
}
.product-card .photo-pair { display: grid; grid-template-columns: 1fr 1fr; gap: 6px; }
.product-card .photo {
  width: 100%; height: 100px; object-fit: cover; border-radius: var(--md-shape-sm);
  background: var(--md-surface-container-highest);
}
.product-card .photo.placeholder {
  display: flex; align-items: center; justify-content: center; color: var(--md-on-surface-variant); font-size: 12px;
}
.product-card .name { font-weight: 500; font-size: 14px; }
.product-card .meta { font-size: 12px; color: var(--md-on-surface-variant); }
.product-card .row { display: flex; justify-content: space-between; align-items: center; gap: 6px; }

/* ---------- chips de status (M3 assist chip: contorno fino + rótulo) ---------- */

.tag {
  display: inline-block;
  font-size: 11px;
  font-weight: 700;
  padding: 3px 10px;
  border-radius: var(--md-shape-full);
}
.tag.ok { background: var(--md-ok-container); color: var(--md-ok); }
.tag.atencao { background: var(--md-atencao-container); color: var(--md-atencao); }
.tag.critico, .tag.vencido { background: var(--md-error-container); color: var(--md-error); }

.empty { color: var(--md-on-surface-variant); font-size: 13px; padding: 20px 0; text-align: center; }

/* ---------- formulários (M3 outlined text field) ---------- */

form.stack { display: flex; flex-direction: column; gap: 14px; }
label { font-size: 12px; font-weight: 500; color: var(--md-on-surface-variant); display: block; margin-bottom: 4px; }
input, select {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--md-outline);
  border-radius: var(--md-shape-xs);
  font: inherit;
  background: var(--md-surface-container-lowest);
  color: var(--md-on-surface);
}
input:focus, select:focus {
  outline: none;
  border: 2px solid var(--md-primary);
  padding: 11px 13px;
}

/* ---------- diálogo (M3 dialog: cantos grandes, elevação) ---------- */

.modal-backdrop {
  position: fixed; inset: 0; background: rgba(32, 26, 25, 0.4);
  display: flex; align-items: center; justify-content: center; padding: 16px; z-index: 50;
}
.modal {
  background: var(--md-surface-container-high);
  color: var(--md-on-surface);
  border-radius: var(--md-shape-lg);
  padding: 20px;
  max-width: 420px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: var(--md-elevation-3);
}
.modal h3 { margin-top: 0; font-weight: 500; }

.error-msg { color: var(--md-error); font-size: 13px; }
.success-msg { color: var(--md-ok); font-size: 13px; }

.filter-row { display: flex; gap: 8px; margin-bottom: 10px; flex-wrap: wrap; }
.filter-row input, .filter-row select { width: auto; flex: 1; min-width: 140px; }

/* ---------- tabela (M3 data table: divisórias finas, sem grade pesada) ---------- */

table { width: 100%; border-collapse: collapse; font-size: 13px; }
table th, table td { text-align: left; padding: 10px 8px; border-bottom: 1px solid var(--md-outline-variant); }
table th { color: var(--md-on-surface-variant); font-weight: 500; font-size: 12px; }

.login-page {
  min-height: 100vh; display: flex; align-items: center; justify-content: center; padding: 16px;
}
.login-card { max-width: 340px; width: 100%; text-align: center; }
.login-card h1 { color: var(--md-primary); font-size: 22px; font-weight: 500; margin-bottom: 4px; }
.login-card p.subtitle { color: var(--md-on-surface-variant); font-size: 13px; margin-top: 0; margin-bottom: 20px; }

.spinner {
  display: inline-block; width: 14px; height: 14px; border: 2px solid currentColor;
  border-top-color: transparent; border-radius: 50%; animation: spin 0.7s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }