/* =========================================================
   Mestre do Pano — style.css
   Estilos globais: tokens, header, footer, tipografia, hero
   FASE 6.5B: animações, pulso carrinho
   ========================================================= */

@import url('https://fonts.googleapis.com/css2?family=Fraunces:opsz,wght@9..144,400;9..144,500;9..144,600&family=Work+Sans:wght@400;500;600&display=swap');

:root {
  /* Cor */
  --color-bg: #F6F1E7;
  --color-surface: #FFFFFF;
  --color-primary: #1E3A4C;
  --color-accent: #C1652E;
  --color-ink: #2B2620;
  --color-ink-soft: #5B5348;
  --color-border: #DDD3C0;

  /* Tipografia */
  --font-display: 'Fraunces', Georgia, serif;
  --font-body: 'Work Sans', -apple-system, BlinkMacSystemFont, sans-serif;

  /* Espaçamento */
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.75rem;
  --space-lg: 3rem;
  --space-xl: 5rem;

  --max-width: 1180px;
  --radius: 3px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--color-ink);
  background: var(--color-bg);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

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

a { color: inherit; text-decoration: none; }

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-md);
}

h1, h2, h3 {
  font-family: var(--font-display);
  font-weight: 500;
  line-height: 1.15;
  margin: 0 0 var(--space-sm);
  color: var(--color-primary);
}

h1 { font-size: clamp(2.2rem, 5vw, 3.4rem); }
h2 { font-size: clamp(1.6rem, 3vw, 2.2rem); }
h3 { font-size: 1.2rem; }

p { margin: 0 0 var(--space-sm); max-width: 62ch; }

.btn {
  display: inline-block;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.95rem;
  padding: 0.85rem 1.6rem;
  border-radius: var(--radius);
  border: 1px solid transparent;
  cursor: pointer;
  transition: background-color 0.15s ease, color 0.15s ease, border-color 0.15s ease;
}

.btn-primary {
  background: var(--color-primary);
  color: var(--color-bg);
}
.btn-primary:hover { background: #16293636; background: #16293666; background-color: #16293e; }

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

/* ---------- Header ---------- */

.site-header {
  border-bottom: 1px solid var(--color-border);
  background: var(--color-bg);
  position: sticky;
  top: 0;
  z-index: 50;
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: var(--space-sm);
  padding-bottom: var(--space-sm);
}

.logo {
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 600;
  color: var(--color-primary);
  letter-spacing: 0.01em;
}

.logo span { color: var(--color-accent); }

.main-nav {
  display: flex;
  gap: var(--space-md);
}

.main-nav a {
  font-size: 0.95rem;
  color: var(--color-ink);
  padding-bottom: 2px;
  border-bottom: 1px solid transparent;
}
.main-nav a:hover,
.main-nav a[aria-current="page"] {
  border-bottom-color: var(--color-accent);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.cart-link {
  position: relative;
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.95rem;
  font-weight: 500;
}

.cart-count {
  background: var(--color-accent);
  color: #fff;
  font-size: 0.72rem;
  font-weight: 600;
  min-width: 1.2rem;
  height: 1.2rem;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 0.2rem;
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.4rem;
}
.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--color-primary);
  margin: 5px 0;
}

/* ---------- Hero (index) ---------- */

.hero {
  padding: var(--space-xl) 0;
}

.hero .container {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: var(--space-lg);
  align-items: center;
}

.hero-media {
  aspect-ratio: 4 / 5;
  background: linear-gradient(155deg, #E7DCC4 0%, #D8C9A6 55%, #C7B287 100%);
  border-radius: var(--radius);
  position: relative;
  overflow: hidden;
}

.hero-media::before,
.hero-media::after {
  content: "";
  position: absolute;
  inset: 0;
  background-repeat: repeat;
  opacity: 0.5;
}
.hero-media::before {
  background-image: repeating-linear-gradient(90deg, rgba(30,58,76,0.12) 0 3px, transparent 3px 26px);
}
.hero-media::after {
  background-image: repeating-linear-gradient(0deg, rgba(193,101,46,0.10) 0 2px, transparent 2px 24px);
}

.hero-text .eyebrow {
  color: var(--color-accent);
  font-weight: 600;
  font-size: 0.95rem;
  margin-bottom: var(--space-xs);
  display: block;
}

.hero-text p.lead {
  font-size: 1.15rem;
  color: var(--color-ink-soft);
}

.hero-actions {
  display: flex;
  gap: var(--space-sm);
  margin-top: var(--space-md);
}

/* ---------- Secções genéricas ---------- */

.section {
  padding: var(--space-xl) 0;
}

.section-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--space-md);
  margin-bottom: var(--space-lg);
  flex-wrap: wrap;
}

.section-header p { margin: 0; color: var(--color-ink-soft); }

.divider {
  border: none;
  border-top: 1px solid var(--color-border);
  margin: var(--space-lg) 0;
}

/* ---------- Grelha de produtos ---------- */

.product-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-md) var(--space-md);
}

@media (min-width: 640px) {
  .product-grid { grid-template-columns: repeat(3, 1fr); }
}
@media (min-width: 960px) {
  .product-grid { grid-template-columns: repeat(4, 1fr); }
}

.product-card {
  display: block;
}

.product-card .thumb {
  aspect-ratio: 1 / 1;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  margin-bottom: var(--space-xs);
  overflow: hidden;
  position: relative;
}

.product-card .thumb img { width: 100%; height: 100%; object-fit: cover; }

.product-card .thumb .placeholder-pattern {
  position: absolute;
  inset: 0;
  background:
    repeating-linear-gradient(45deg, #EFE7D4 0 8px, #E6DAC0 8px 16px);
}

.product-card .thumb .variation-badge {
  position: absolute;
  bottom: 0.5rem;
  left: 0.5rem;
  background: rgba(30, 58, 76, 0.88);
  color: #fff;
  font-size: 0.72rem;
  font-weight: 600;
  padding: 0.25rem 0.55rem;
  border-radius: var(--radius);
  letter-spacing: 0.01em;
}

.product-card h3 {
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.98rem;
  margin: 0 0 0.2rem;
  color: var(--color-ink);
}

.product-card .price {
  color: var(--color-accent);
  font-weight: 600;
}

.product-card .variant-note {
  font-size: 0.82rem;
  color: var(--color-ink-soft);
  margin: 0.2rem 0 0;
}

/* ---------- Preço por unidade (Fase 5) ---------- */

.unit-price-inline {
  font-size: 0.78rem;
  color: var(--color-ink-soft);
  margin: 0.1rem 0 0;
}

.pack-note,
.pack-note-small {
  font-size: 0.85rem;
  color: var(--color-ink-soft);
  margin: 0.2rem 0 0;
}

.pack-note-small {
  font-size: 0.78rem;
}

.unit-price {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-accent);
  margin: 0.05rem 0 0.4rem;
}

.summary-item-pack {
  display: block;
  font-size: 0.76rem;
  color: var(--color-ink-soft);
  font-weight: 400;
}

.stock-note {
  font-size: 0.78rem;
  font-weight: 600;
  margin: 0.15rem 0 0;
}
.stock-ok { color: #2f7a3c; }
.stock-low { color: #b5730f; }
.stock-out { color: #b5342f; }

.additional-info {
  font-size: 0.82rem;
  color: var(--color-ink-soft);
  white-space: pre-line;
  margin-top: var(--space-sm);
}

/* ---------- Faixa de valores / porquê algodão ---------- */

.values-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
}

.values-row article {
  border-top: 1px solid var(--color-border);
  padding-top: var(--space-sm);
}

.values-row h3 { margin-bottom: 0.35rem; }
.values-row p { color: var(--color-ink-soft); font-size: 0.95rem; }

/* ---------- Footer ---------- */

.site-footer {
  border-top: 1px solid var(--color-border);
  padding: var(--space-lg) 0 var(--space-md);
  margin-top: var(--space-xl);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: var(--space-lg);
  margin-bottom: var(--space-lg);
}

.footer-grid h4 {
  font-family: var(--font-body);
  font-size: 0.85rem;
  font-weight: 600;
  margin: 0 0 var(--space-sm);
  color: var(--color-primary);
}

.footer-grid ul { list-style: none; margin: 0; padding: 0; }
.footer-grid li { margin-bottom: 0.5rem; }
.footer-grid a { color: var(--color-ink-soft); font-size: 0.92rem; }
.footer-grid a:hover { color: var(--color-primary); }

.footer-brand p {
  color: var(--color-ink-soft);
  font-size: 0.92rem;
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-sm);
  font-size: 0.82rem;
  color: var(--color-ink-soft);
  border-top: 1px solid var(--color-border);
  padding-top: var(--space-sm);
}

/* Animação de pulso (Fase 6.5B: confirmação carrinho) */
@keyframes pulse-animation {
  0% { transform: scale(1); }
  50% { transform: scale(1.15); }
  100% { transform: scale(1); }
}

.pulse-animation {
  animation: pulse-animation 0.6s ease-in-out;
}

/* ---------- Responsivo ---------- */

@media (max-width: 860px) {
  .hero .container { grid-template-columns: 1fr; }
  .hero-media { aspect-ratio: 16 / 10; order: -1; }
  .values-row { grid-template-columns: 1fr; gap: var(--space-lg); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 720px) {
  .main-nav { display: none; }
  .nav-toggle { display: block; }

  .site-header.nav-open .main-nav {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--color-bg);
    border-bottom: 1px solid var(--color-border);
    padding: var(--space-sm) var(--space-md) var(--space-md);
    gap: var(--space-sm);
  }

  .footer-grid { grid-template-columns: 1fr; gap: var(--space-md); }
}