/* ==========================================================================
   União Supermercados — Design System
   ========================================================================== */

:root {
  /* Brand — União Supermercados (magenta + roxo) */
  --brand-primary: #a01b73;
  --brand-primary-dark: #5e2d5e;
  --brand-primary-light: #c43a96;
  --brand-primary-soft: #f9eef5;
  --brand-secondary: #7b61a9;
  --brand-secondary-dark: #5f4a87;
  --brand-secondary-light: #9580c4;
  --brand-accent: #a01b73;
  --brand-accent-dark: #7a1458;
  --brand-gold: #7b61a9;
  --brand-gold-light: #9580c4;

  /* Semantic */
  --color-success: #15803d;
  --color-danger: #dc2626;
  --color-warning: #d97706;
  --color-info: #0369a1;

  /* Neutrals */
  --white: #ffffff;
  --gray-50: #f8faf9;
  --gray-100: #f1f5f3;
  --gray-200: #e2e8e5;
  --gray-300: #cbd5d0;
  --gray-400: #94a3a0;
  --gray-500: #64748b;
  --gray-600: #475569;
  --gray-700: #334155;
  --gray-800: #1e293b;
  --gray-900: #0f172a;

  /* Aliases */
  --primary: var(--brand-primary);
  --primary-dark: var(--brand-primary-dark);
  --primary-light: var(--brand-primary-light);
  --accent: var(--brand-gold);
  --accent-dark: var(--brand-gold-light);
  --danger: var(--color-danger);
  --success: var(--color-success);

  /* Layout */
  --container-max: 1180px;
  --header-height: 118px;
  --top-bar-height: 36px;
  --utility-bars-height: var(--top-bar-height);
  --sidebar-width: 300px;
  --radius-sm: 8px;
  --radius: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;

  /* Effects */
  --shadow-xs: 0 1px 2px rgb(15 23 42 / 0.04);
  --shadow-sm: 0 2px 8px rgb(15 23 42 / 0.06);
  --shadow: 0 4px 16px rgb(15 23 42 / 0.08);
  --shadow-lg: 0 12px 32px rgb(15 23 42 / 0.12);
  --shadow-brand: 0 8px 24px rgb(160 27 115 / 0.22);

  /* Typography */
  --font-sans: 'Plus Jakarta Sans', 'Inter', system-ui, sans-serif;
  --font-display: 'Plus Jakarta Sans', 'Inter', system-ui, sans-serif;

  /* Motion */
  --ease: cubic-bezier(0.4, 0, 0.2, 1);
  --duration: 0.2s;

  /* Logo (1024×632) */
  --logo-ratio: 1024 / 632;
  --logo-h-header: 104px;
  --logo-h-footer: 128px;
  --logo-h-sidebar: 104px;
  --logo-h-auth: 148px;
  --logo-h-auth-panel: 132px;
}

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

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

body {
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--gray-800);
  background: var(--gray-50);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

.public-site {
  overflow-x: clip;
}

img { max-width: 100%; height: auto; display: block; }

.product-image img,
.promo-card .product-image img {
  max-width: none;
  max-height: none;
}

.brand-logo {
  display: block;
  width: auto;
  height: var(--logo-h, var(--logo-h-header));
  max-width: none;
  max-height: none;
  aspect-ratio: var(--logo-ratio);
  object-fit: contain;
  flex-shrink: 0;
}

.brand-logo--header { --logo-h: var(--logo-h-header); }
.brand-logo--footer { --logo-h: var(--logo-h-footer); }
.brand-logo--sidebar { --logo-h: var(--logo-h-sidebar); filter: brightness(1.06); }
.brand-logo--auth { --logo-h: var(--logo-h-auth); }
.brand-logo--auth-panel { --logo-h: var(--logo-h-auth-panel); }

a {
  color: var(--brand-primary);
  text-decoration: none;
  transition: color var(--duration) var(--ease);
}

a:hover { color: var(--brand-primary-dark); }

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.25;
  color: var(--gray-900);
  letter-spacing: -0.02em;
}

.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 1.25rem;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius-sm);
  font-family: inherit;
  font-weight: 600;
  font-size: 0.9375rem;
  line-height: 1;
  border: 2px solid transparent;
  cursor: pointer;
  transition: all var(--duration) var(--ease);
  text-decoration: none;
  white-space: nowrap;
}

.btn-primary {
  background: var(--brand-primary);
  color: var(--white);
  box-shadow: var(--shadow-sm);
}

.btn-primary:hover {
  background: var(--brand-primary-dark);
  color: var(--white);
  box-shadow: var(--shadow-brand);
  transform: translateY(-1px);
}

.btn-accent {
  background: var(--brand-gold);
  color: var(--white);
  box-shadow: var(--shadow-sm);
}

.btn-accent:hover {
  background: var(--brand-gold-light);
  color: var(--white);
  transform: translateY(-1px);
}

.btn-whatsapp {
  background: #25d366;
  color: var(--white);
  box-shadow: var(--shadow-sm);
}

.btn-whatsapp:hover {
  background: #1fb855;
  color: var(--white);
  transform: translateY(-1px);
}

.btn-outline {
  background: transparent;
  border-color: var(--brand-primary);
  color: var(--brand-primary);
}

.btn-outline:hover {
  background: var(--brand-primary);
  color: var(--white);
}

.btn-ghost {
  background: rgb(255 255 255 / 0.12);
  border-color: rgb(255 255 255 / 0.35);
  color: var(--white);
}

.btn-ghost:hover {
  background: rgb(255 255 255 / 0.2);
  color: var(--white);
}

.btn-danger {
  background: var(--color-danger);
  color: var(--white);
}

.btn-danger:hover {
  background: #b91c1c;
  color: var(--white);
}

.btn-sm {
  padding: 0.5rem 1rem;
  font-size: 0.8125rem;
}

.btn-lg {
  padding: 1rem 2rem;
  font-size: 1rem;
}

/* Forms */
.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.form-group label {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--gray-700);
  letter-spacing: 0.01em;
}

input, select, textarea {
  width: 100%;
  padding: 0.75rem 1rem;
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-sm);
  font-family: inherit;
  font-size: 0.9375rem;
  color: var(--gray-800);
  background: var(--white);
  transition: border-color var(--duration) var(--ease), box-shadow var(--duration) var(--ease);
}

input::placeholder { color: var(--gray-400); }

input:focus, select:focus, textarea:focus {
  outline: none;
  border-color: var(--brand-primary);
  box-shadow: 0 0 0 3px rgb(160 27 115 / 0.12);
}

textarea { resize: vertical; min-height: 110px; }

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.form-check {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.9375rem;
  color: var(--gray-700);
}

.form-check input { width: auto; accent-color: var(--brand-primary); }

/* Badges */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 0.25rem 0.625rem;
  border-radius: 999px;
  font-size: 0.6875rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.badge-success { background: #dcfce7; color: var(--color-success); }
.badge-danger { background: #fee2e2; color: var(--color-danger); }
.badge-warning { background: #ffedd5; color: var(--color-warning); }
.badge-brand { background: var(--brand-primary-soft); color: var(--brand-primary); }

/* Alerts */
.alert {
  padding: 0.875rem 1rem;
  border-radius: var(--radius-sm);
  margin-bottom: 1rem;
  font-size: 0.875rem;
  border: 1px solid transparent;
}

.alert-error { background: #fef2f2; color: var(--color-danger); border-color: #fecaca; }
.alert-success { background: #f0fdf4; color: var(--color-success); border-color: #bbf7d0; }

/* Utilities */
.text-muted { color: var(--gray-500); }
.sr-only {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  border: 0;
}

@media (max-width: 768px) {
  .form-row { grid-template-columns: 1fr; }
}