/* =========================================================
   INDEX.CSS — exclusivo do index.html (página do produto)
   Precisa de base.css carregado antes.
   ========================================================= */

/* ============ Product section ============ */
.product-section{padding:16px 16px 32px}
.product-grid{
  display:flex;flex-direction:column;gap:24px;
}

/* Gallery / Carousel */
.carousel{
  position:relative;border-radius:var(--radius);overflow:hidden;
  background:var(--gray-50);
}
.carousel-track{
  display:flex;
  overflow-x:auto;
  scroll-snap-type:x mandatory;
  -webkit-overflow-scrolling:touch;
  scrollbar-width:none;
}
.carousel-track::-webkit-scrollbar{display:none}
.carousel-slide{
  flex:0 0 100%;
  scroll-snap-align:center;
  scroll-snap-stop:always;
  aspect-ratio:1/1;
}
.carousel-slide img{width:100%;height:100%;object-fit:cover}
.gallery-counter{
  position:absolute;bottom:10px;right:10px;background:rgba(23,24,28,.7);
  color:var(--white);font-size:12px;padding:4px 9px;border-radius:20px;
  pointer-events:none;
}
.carousel-arrow{
  display:none;position:absolute;top:50%;transform:translateY(-50%);
  width:34px;height:34px;border-radius:50%;background:rgba(255,255,255,.9);
  color:var(--black);align-items:center;justify-content:center;font-size:20px;
  box-shadow:var(--shadow);z-index:2;
}
.carousel-arrow.prev{left:10px}
.carousel-arrow.next{right:10px}

.carousel-dots{display:flex;justify-content:center;align-items:center;gap:6px;margin-top:10px}
.carousel-dots button{
  width:6px;height:6px;border-radius:50%;background:var(--gray-200);transition:.2s;padding:0;
}
.carousel-dots button.active{background:var(--brand);width:16px;border-radius:4px}

.zoom-hint{
  display:flex;align-items:center;justify-content:center;gap:6px;
  font-size:12px;color:var(--gray-500);margin-top:8px;
}

.gallery-thumbs{
  display:none;
  grid-template-columns:repeat(5,1fr);gap:7px;margin-top:10px;
}
.gallery-thumbs img{
  aspect-ratio:1/1;object-fit:cover;border-radius:6px;cursor:pointer;
  border:2px solid transparent;opacity:.75;transition:.15s;
}
.gallery-thumbs img:hover{opacity:1}
.gallery-thumbs img.active{border-color:var(--brand);opacity:1}

/* Product info */
.product-info{display:flex;flex-direction:column;gap:12px}
.badge-sold{
  align-self:flex-start;background:#fdece9;color:#b8391f;
  font-size:12px;font-weight:700;padding:5px 11px;border-radius:20px;
}
.product-info h1{font-size:clamp(21px,5vw,30px);font-weight:700;font-family:var(--font-body)}
.rating-row{display:flex;align-items:center;gap:8px;font-size:13.5px;flex-wrap:wrap}
.rating-row a{color:var(--gray-600);text-decoration:underline}
.sold-by{font-size:13px;color:var(--gray-500)}
.viewers{
  display:flex;align-items:center;gap:8px;font-size:13px;color:var(--gray-600);
  background:var(--gray-50);padding:9px 12px;border-radius:8px;width:fit-content;
}
.viewers-dot{
  width:8px;height:8px;border-radius:50%;background:var(--green);flex-shrink:0;
  box-shadow:0 0 0 3px var(--green-tint);
}

.option-group{display:flex;flex-direction:column;gap:10px}
.option-label{font-size:14px;font-weight:600}
.option-label strong{font-weight:700}

/* Color options */
.color-options{display:flex;flex-wrap:wrap;gap:14px 10px}
.color-option{
  display:flex;flex-direction:column;align-items:center;gap:6px;width:64px;
  position:relative;padding-top:10px;
}
.color-swatch{
  width:44px;height:44px;border-radius:50%;background-size:cover;background-position:center;
  border:2px solid var(--gray-200);transition:.15s;
}
.color-option:hover .color-swatch{border-color:var(--gray-400)}
.color-option.active .color-swatch{border-color:var(--brand);box-shadow:0 0 0 2px var(--white),0 0 0 4px var(--brand)}
.color-name{font-size:10.5px;color:var(--gray-600);text-align:center;line-height:1.2}
.color-option.active .color-name{color:var(--black);font-weight:600}
.swatch-badge{
  position:absolute;top:-4px;left:50%;transform:translateX(-50%);
  font-size:8.5px;font-weight:700;background:var(--gold);color:var(--white);padding:2px 7px;border-radius:6px;
  white-space:nowrap;z-index:1;
}

/* Size options */
.size-options{display:grid;grid-template-columns:repeat(2,1fr);gap:10px}
.size-card{
  position:relative;border:1.5px solid var(--gray-200);border-radius:var(--radius);
  padding:14px 8px 12px;text-align:center;display:flex;flex-direction:column;gap:4px;
  transition:.15s;background:var(--white);
}
.size-card:hover{border-color:var(--gray-400)}
.size-card.active{border-color:var(--brand);background:var(--brand-tint)}
.size-tag{
  position:absolute;top:-10px;left:50%;transform:translateX(-50%);
  font-size:9px;font-weight:700;background:var(--brand);color:var(--white);padding:2px 8px;border-radius:6px;
  white-space:nowrap;
}
.size-kg{font-family:var(--font-head);font-weight:800;font-size:20px}
.size-cover{font-size:11.5px;font-weight:600;color:var(--brand)}
.size-desc{font-size:10.5px;color:var(--gray-500);line-height:1.3}

/* Price box */
.price-box{
  background:var(--gray-50);border-radius:var(--radius);padding:16px;
  display:flex;flex-direction:column;gap:4px;
}
.price-row{display:flex;align-items:center;gap:10px;font-size:13.5px;color:var(--gray-500)}
.price-row s{color:var(--gray-500)}
.price-discount{background:var(--gray-200);color:var(--black);font-weight:700;font-size:12px;padding:2px 8px;border-radius:6px}
.price-now{font-family:var(--font-head);font-size:clamp(32px,8vw,40px);font-weight:800;color:var(--black)}
.price-detail{font-size:13px;color:var(--gray-600)}
.price-detail strong{color:var(--green-dark)}

/* Trust list (barra de benefícios da lateral do produto) */
.trust-list{display:flex;flex-direction:column;gap:12px;font-size:13px;color:var(--gray-600)}
.trust-list li{display:flex;align-items:flex-start;gap:10px}
.trust-list small{color:var(--gray-500);font-weight:400}
.trust-list strong{color:var(--black);font-weight:700}
.ti-circle{
  width:30px;height:30px;border-radius:50%;background:var(--brand-tint);color:var(--brand);
  display:flex;align-items:center;justify-content:center;flex-shrink:0;margin-top:1px;
}

.bestseller-note{
  display:flex;align-items:center;gap:6px;font-size:12.5px;font-weight:600;color:var(--gold-dark);
}

.payment-note{
  display:flex;align-items:flex-start;gap:12px;
  border:1px solid var(--gray-200);border-radius:var(--radius);padding:14px 16px;
  background:var(--white);
}
.pn-icon{
  width:34px;height:34px;border-radius:8px;background:var(--brand-tint);color:var(--brand);
  display:flex;align-items:center;justify-content:center;flex-shrink:0;
}
.pn-text{display:flex;flex-direction:column;gap:6px;min-width:0}
.pn-label{font-size:12px;color:var(--gray-500)}
.pn-main{font-size:14.5px;font-weight:700;color:var(--black);margin-top:-4px}

/* ============ Features ============ */
.features-section{background:var(--gray-50);padding:32px 0;margin-top:24px}
.features-grid{display:flex;flex-direction:column;gap:14px}
.feature-card{
  display:flex;align-items:flex-start;gap:14px;
  background:var(--white);border:1px solid var(--gray-200);border-radius:var(--radius);
  padding:18px;box-shadow:var(--shadow);
}
.feature-icon{
  width:38px;height:38px;border-radius:9px;flex-shrink:0;
  display:flex;align-items:center;justify-content:center;
}
.feature-icon--violet{background:#efe7fb;color:#6d4aab}
.feature-icon--amber{background:#fdecd2;color:var(--gold-dark)}
.feature-icon--blue{background:#e0f0fb;color:#2f7fb8}
.feature-icon--rose{background:#fbe4e8;color:#c94060}
.feature-body{min-width:0}
.feature-card h3{
  font-family:var(--font-body);font-size:13.5px;font-weight:800;margin-bottom:5px;
  text-transform:uppercase;letter-spacing:.3px;color:var(--black);
}
.feature-card p{font-size:13px;color:var(--gray-500);line-height:1.45}

/* ============ Description ============ */
.description-section{padding:40px 16px;display:flex;flex-direction:column;gap:24px}
.description-section h2{font-size:24px}
.description-section .lead{font-size:14.5px;font-weight:500;color:var(--gray-600)}
.desc-images{display:flex;flex-direction:column;gap:16px}
.desc-single{border-radius:var(--radius);width:100%}
.desc-images img{border-radius:var(--radius);width:100%;height:auto}

.calculator{background:var(--gray-50);border-radius:var(--radius);padding:20px}
.calculator h3{font-size:18px;margin-bottom:12px}
.calc-inputs{
  display:grid;grid-template-columns:1fr 1fr;
  column-gap:12px;row-gap:6px;
  align-items:start;
}
.calc-inputs label{font-size:12.5px;font-weight:600;color:var(--gray-600)}
.calc-inputs input{
  padding:10px 12px;border:1.5px solid var(--gray-200);border-radius:8px;font-size:15px;font-family:inherit;
  width:100%;
}
.calc-result{margin-top:14px;font-size:14px;font-weight:600;background:var(--white);padding:12px 14px;border-radius:8px}
.calc-note{margin-top:10px;font-size:11.5px;color:var(--gray-500)}

.specs h3{font-size:18px;margin-bottom:12px}
.specs dl{display:flex;flex-direction:column;gap:0}
.specs dl>div{display:flex;flex-direction:column;gap:2px;padding:10px 0;border-bottom:1px solid var(--gray-200);font-size:13px}
.specs dt{font-weight:700;color:var(--black)}
.specs dd{color:var(--gray-600)}

.box-contents h3{font-size:18px;margin-bottom:10px}
.box-contents ul{display:flex;flex-direction:column;gap:6px}
.box-contents li{font-size:13.5px;color:var(--gray-600);padding-left:20px;position:relative}
.box-contents li::before{content:'✓';position:absolute;left:0;color:var(--green-dark);font-weight:700}

.instructions-note{font-size:11.5px;color:var(--gray-500);line-height:1.6}

.guarantee-box{background:var(--gray-50);border-radius:var(--radius);padding:20px;text-align:center}
.guarantee-box h3{font-size:18px;margin-bottom:12px}
.guarantee-box .payment-icons{justify-content:center;margin-bottom:12px}
.guarantee-box p{font-size:13px;color:var(--gray-600);margin-top:6px}

/* ============ Reviews (versão resumida na home) ============ */
.reviews-section{background:var(--gray-50);padding:40px 0}
.reviews-section h2{font-size:24px;margin-bottom:20px;text-align:center}

.written-reviews{display:grid;grid-template-columns:1fr;gap:14px;margin-bottom:24px}
.review-card{background:var(--white);border-radius:var(--radius);padding:14px;box-shadow:var(--shadow)}
.review-card img{border-radius:8px;aspect-ratio:4/3;object-fit:cover;margin-bottom:10px}
.rv-stars{color:#f5a623;letter-spacing:1px;margin-bottom:6px}
.rv-text{font-size:13px;color:var(--gray-600);margin-bottom:10px}
.rv-author{font-size:12px;font-weight:700}
.rv-verified{display:block;font-weight:500;color:var(--green-dark);font-size:11px;margin-top:2px}
.rv-date{font-size:11px;color:var(--gray-400);margin-top:4px}

/* ============ FAQ ============ */
.faq-section{padding:40px 16px}
.faq-section h2{font-size:24px;text-align:center;margin-bottom:22px}
.faq-list{display:flex;flex-direction:column;gap:10px;max-width:820px;margin:0 auto}
.faq-item{border:1px solid var(--gray-200);border-radius:var(--radius);overflow:hidden}
.faq-question{
  width:100%;display:flex;justify-content:space-between;align-items:center;gap:10px;
  padding:14px 16px;font-size:14px;font-weight:600;text-align:left;
}
.faq-icon{font-size:18px;color:var(--gray-500);flex-shrink:0}
.faq-answer{max-height:0;overflow:hidden;transition:max-height .25s ease}
.faq-answer p{padding:0 16px 16px;font-size:13.5px;color:var(--gray-600)}
.faq-item.open .faq-answer{max-height:220px}

/* ============ Fixed buy bar ============ */
.fixed-buy-bar{
  position:fixed;bottom:12px;left:50%;z-index:100;
  transform:translateX(-50%) translateY(120%);opacity:0;pointer-events:none;
  transition:transform .25s ease,opacity .25s ease;
  background:var(--white);border-radius:14px;box-shadow:var(--shadow-lg);
  display:flex;align-items:center;justify-content:space-between;gap:16px;padding:10px 10px 10px 16px;
  border:1px solid var(--gray-200);
  width:calc(100% - 24px);
}
.fixed-buy-bar.is-visible{transform:translateX(-50%) translateY(0);opacity:1;pointer-events:auto}
.fb-info{display:flex;flex-direction:column;line-height:1.2}
#fbPrice{font-family:var(--font-head);font-weight:800;font-size:19px}
.fb-label{font-size:11px;color:var(--green-dark);font-weight:600}
.fixed-buy-bar .buy-btn{padding:12px 20px;font-size:13.5px;width:auto}

/* =========================================================
   MOBILE-FIRST BREAKPOINTS (regras acima)
   ========================================================= */

/* ---- >=480px : telas de celular maiores ---- */
@media (min-width:480px){
  .size-options{grid-template-columns:repeat(4,1fr)}
}

/* ---- >=640px : tablets pequenos ---- */
@media (min-width:640px){
  .features-grid{display:grid;grid-template-columns:repeat(2,1fr)}
  .written-reviews{grid-template-columns:repeat(2,1fr)}
}

/* ---- >=768px : tablets / desktop pequeno ---- */
@media (min-width:768px){
  .product-section{padding:20px 24px 40px}
  .carousel-arrow{display:flex}
  .carousel-dots{display:none}
  .gallery-thumbs{display:grid;grid-template-columns:repeat(5,1fr)}
  .zoom-hint{display:none}
  .price-now{font-size:40px}

  .description-section{padding:56px 24px}
  .desc-images{max-width:560px;margin:0 auto}
  .desc-single{max-width:560px;margin:0 auto}
  .specs dl{display:grid;grid-template-columns:1fr 1fr;gap:10px 24px}
  .specs dl>div{flex-direction:row;justify-content:space-between}
  .specs dd{text-align:right}

  .written-reviews{grid-template-columns:repeat(3,1fr)}

  .faq-section{padding:56px 24px}
}

/* ---- >=980px : desktop ---- */
@media (min-width:980px){
  .product-grid{display:grid;grid-template-columns:1.1fr 1fr;gap:44px}
  .features-grid{gap:24px}
  .description-section{gap:28px}
  .fixed-buy-bar{display:none}
}