/* Paleta clara com verdes e verdes-água suaves */
:root {
  --brand-green-600: #16a34a;
  --brand-green-500: #22c55e;
  --brand-green-400: #34d399;
  --brand-green-300: #3cdb76;
  --brand-emerald-300: #13a76c;
  --brand-emerald-200: #64cf9d;
  --brand-green-50: #ecfdf5;
  --brand-primary: var(--brand-green-500);
  --brand-primary-strong: var(--brand-green-600);
  --brand-hero-bg-gradient: linear-gradient(135deg, var(--brand-emerald-200) 0%, var(--brand-green-300) 100%);
  --brand-app-bg-gradient: linear-gradient(135deg, var(--brand-emerald-200) 0%, var(--brand-green-300) 100%);
  --brand-shadow-color: 34,197,94;
  --brand-shadow-strength: 0.35;
  --brand-btn-radius: 12px;
}

/* Utilitários de tema */
.bg-brand-primary { background-color: var(--brand-green-500) !important; }
.text-brand-primary { color: var(--brand-green-500) !important; }
.text-brand-strong { color: #0f766e !important; /* teal-700 para títulos */ }
.border-brand-soft { border-color: var(--brand-green-300) !important; }
.bg-brand-soft { background-color: var(--brand-green-50) !important; }
.bg-brand-gradient { background: var(--brand-app-bg-gradient) !important; }
.bg-brand-gradient-soft { background: linear-gradient(135deg, #eafaf3 0%, #ffffff 100%) !important; }

/* Header e navegação */
header.bg-brand-primary { box-shadow: 0 8px 20px -8px rgba(var(--brand-shadow-color), var(--brand-shadow-strength)); }

/* Hero de marca e imagem Liquigás */
.brand-hero { position: relative; overflow: hidden; }
.brand-media { 
  background: var(--brand-hero-bg-gradient);
  border-radius: 1rem;
  padding: 1rem;
  box-shadow: 0 12px 28px -12px rgba(var(--brand-shadow-color), var(--brand-shadow-strength));
}
.brand-img-mobile { 
  width: 100%;
  height: auto;
  max-width: 880px;
  max-height: 420px;
}
@media (max-width: 640px) {
  .brand-img-mobile { max-height: 280px; }
}

/* Cartões e elementos */
.product-card:hover { transform: translateY(-4px); box-shadow: 0 12px 24px -10px rgba(0,0,0,0.12); }
.category-card { transition: transform 180ms ease, box-shadow 180ms ease; }
.category-card { display: inline-flex; align-items: center; justify-content: center; padding: .5rem .9rem; border-radius: 9999px; min-height: 38px; }
.category-card:hover { transform: translateY(-1px); box-shadow: 0 6px 14px -10px rgba(var(--brand-shadow-color), calc(var(--brand-shadow-strength) * 0.7)); }
.category-card.selected {
  border: 2px solid var(--brand-primary);
  background: rgba(var(--brand-shadow-color), .06);
  box-shadow: 0 10px 18px -10px rgba(var(--brand-shadow-color), calc(var(--brand-shadow-strength) * 0.9));
  transform: translateY(-1px) scale(1.01);
}

/* Inputs e foco brand (fallback para Tailwind ring) */
input:focus, select:focus, textarea:focus {
  outline: none;
  box-shadow: 0 0 0 3px rgba(var(--brand-shadow-color), var(--brand-shadow-strength));
  border-color: var(--brand-green-300);
}

/* Botões possíveis (se necessário) */
.btn-brand { 
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  background-color: var(--brand-primary);
  color: #fff;
  padding: 0.5rem 1rem;
  border-radius: var(--brand-btn-radius);
  box-shadow: 0 6px 14px -6px rgba(var(--brand-shadow-color), calc(var(--brand-shadow-strength))); 
  transition: background-color .15s ease, box-shadow .15s ease, transform .08s ease;
}
.btn-brand:hover { background-color: var(--brand-primary-strong); box-shadow: 0 10px 22px -10px rgba(var(--brand-shadow-color), calc(var(--brand-shadow-strength) * 1.2)); }
.btn-brand:active { transform: translateY(1px); }

.btn-outline {
  display: inline-flex; align-items: center; justify-content: center; gap: .5rem;
  background-color: transparent; color: var(--brand-primary);
  padding: 0.5rem 1rem; border: 2px solid var(--brand-primary);
  border-radius: var(--brand-btn-radius);
  transition: color .15s ease, background-color .15s ease, border-color .15s ease;
}
.btn-outline:hover { background-color: rgba(var(--brand-shadow-color), .08); }

.btn-soft {
  display: inline-flex; align-items: center; justify-content: center; gap: .5rem;
  background-color: var(--brand-green-50); color: #065f46;
  padding: 0.5rem 1rem; border: 1px solid var(--brand-green-300);
  border-radius: var(--brand-btn-radius);
}

.btn-sm { padding: 0.375rem 0.75rem; }
.btn-lg { padding: 0.75rem 1.25rem; }
.btn-pill { border-radius: 9999px !important; }

.logo-clean { 
  background: transparent !important;
  border-radius: 0 !important;
  padding: 0 !important;
  box-shadow: none !important;
  filter: drop-shadow(0 6px 14px rgba(var(--brand-shadow-color), 0.25));
}

/* Compat: botões genéricos que referenciam --brand-primary */
button.btn-primary, .btn-primary {
  background-color: var(--brand-primary);
  color: #fff;
}
button.btn-primary:hover, .btn-primary:hover {
  background-color: var(--brand-primary-strong);
}

/* Footer sutilmente integrado */
footer { background-image: linear-gradient(180deg, rgba(13,148,136,0.08) 0%, rgba(0,0,0,0) 24%); }
/* Barra de busca temática */
.search-brand {
  position: relative;
  background: #fff;
  border-radius: 9999px;
  border: 2px solid rgba(var(--brand-shadow-color), .12);
  box-shadow: inset 0 1px 2px rgba(0,0,0,.06), 0 10px 24px -12px rgba(var(--brand-shadow-color), calc(var(--brand-shadow-strength)));
}
.search-brand input {
  background: #f3f4f6; /* gray-100 */
  border-radius: 9999px;
  padding: .75rem 1rem .75rem 2.5rem;
}
.search-brand i {
  position: absolute; left: .85rem; top: 50%; transform: translateY(-50%);
  color: #9ca3af; /* gray-400 */
}
.search-brand:focus-within { border-color: var(--brand-primary); box-shadow: 0 0 0 3px rgba(var(--brand-shadow-color), .15); }