:root {
  --bg: #0d1b2a;
  --card: #10243a;
  --accent: #00d1b2;
  --accent-2: #ff7a59;
  --text: #e9f1f7;
  --muted: #9bb3c8;
  --stroke: #1c3046;
  --shadow: 0 25px 70px rgba(0,0,0,0.35);
  font-family: 'Space Grotesk', system-ui, sans-serif;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  background: radial-gradient(140% 120% at 20% 20%, #14324f, #0d1b2a 60%);
  color: var(--text);
  min-height: 100vh;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: blur(18px);
  background: rgba(13,27,42,0.8);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 32px;
  border-bottom: 1px solid var(--stroke);
}
.logo {
  font-weight: 700;
  letter-spacing: 0.8px;
  font-size: 18px;
}
.nav {
  display: flex;
  gap: 12px;
}
.nav-btn {
  background: transparent;
  border: 1px solid var(--stroke);
  color: var(--text);
  padding: 10px 14px;
  border-radius: 12px;
  cursor: pointer;
  transition: border 0.2s, transform 0.2s;
}
.nav-btn:hover { border-color: var(--accent); transform: translateY(-1px); }

main { padding: 32px; max-width: 1200px; margin: 0 auto 72px; }
.view { display: none; }
.view.active { display: block; }

.hero {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 24px;
  align-items: center;
  margin-bottom: 24px;
}
.hero h1 { margin: 8px 0 12px; font-size: 32px; line-height: 1.15; }
.hero .lede { color: var(--muted); max-width: 520px; }
.hero-card {
  background: linear-gradient(135deg, rgba(0,209,178,0.2), rgba(255,122,89,0.25));
  border: 1px solid var(--stroke);
  padding: 20px;
  border-radius: 16px;
  box-shadow: var(--shadow);
}
.eyebrow { color: var(--accent); text-transform: uppercase; letter-spacing: 1px; font-size: 12px; margin: 0; }
.lede { font-size: 16px; }

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 16px;
}
.card {
  background: var(--card);
  border: 1px solid var(--stroke);
  border-radius: 18px;
  padding: 16px;
  box-shadow: var(--shadow);
}
.card h3 { margin: 8px 0 6px; }
.card .muted { margin: 6px 0; }
.card .desc { min-height: 48px; line-height: 1.4; display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; }
.detail-long { white-space: pre-line; }
.card .link-desc { display: inline-block; margin-top: 4px; color: var(--accent); cursor: pointer; font-weight: 600; }

.carousel {
  position: relative;
  overflow: hidden;
  border-radius: 14px;
  height: 230px;
  display: flex;
  align-items: center;
}
.carousel-track {
  display: flex;
  transition: transform 0.35s ease;
  align-items: center;
}
.carousel img {
  width: 100%;
  max-height: 210px;
  border-radius: 14px;
  object-fit: contain;
  flex-shrink: 0;
  background: #0b1a2b;
  padding: 10px;
}
.carousel button {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background: rgba(0,0,0,0.35);
  border: none;
  color: white;
  padding: 6px 10px;
  border-radius: 50%;
  cursor: pointer;
}
.carousel .prev { left: 8px; }
.carousel .next { right: 8px; }

.badge { display: inline-block; padding: 4px 10px; border-radius: 999px; background: rgba(0,209,178,0.12); color: var(--accent); font-size: 12px; }
.price { font-size: 20px; font-weight: 700; margin: 8px 0; }

.option-group { display: flex; gap: 8px; flex-wrap: wrap; margin: 6px 0 10px; }
.option { border: 1px solid var(--stroke); padding: 6px 10px; border-radius: 10px; cursor: pointer; background: rgba(255,255,255,0.02); }
.option.active { border-color: var(--accent); color: var(--accent); background: rgba(0,209,178,0.08); }
.color-dot { width: 14px; height: 14px; border-radius: 50%; margin-right: 6px; display: inline-block; vertical-align: middle; border: 1px solid rgba(255,255,255,0.25); }

.cta {
  background: linear-gradient(120deg, var(--accent), var(--accent-2));
  color: #0b0f1a;
  border: none;
  padding: 12px 16px;
  border-radius: 14px;
  font-weight: 700;
  cursor: pointer;
  width: max-content;
  transition: transform 0.15s ease;
}
.cta.full { width: 100%; text-align: center; }
.cta:hover { transform: translateY(-1px); }

.muted { color: var(--muted); font-size: 14px; }
.section-header { display: flex; justify-content: space-between; align-items: center; gap: 16px; margin-bottom: 16px; }
.cart-layout { display: grid; grid-template-columns: 1.2fr 1fr; gap: 16px; align-items: flex-start; }
.cart-summary .line { display: flex; justify-content: space-between; margin: 6px 0; }
.cart-summary .line { column-gap: 12px; }
.cart-summary .tag { color: var(--muted); font-size: 13px; }

.form label { display: block; font-weight: 600; font-size: 14px; color: var(--text); }
.form input, .form select {
  width: 100%; padding: 10px 12px; margin: 6px 0 12px;
  background: #0b1a2b;
  border: 1px solid var(--stroke);
  border-radius: 12px;
  color: var(--text);
}

.form-row { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px,1fr)); gap: 12px; }

.loader-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.55);
  display: none;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 12px;
  color: #fff;
  z-index: 20;
}
.spinner {
  width: 56px; height: 56px;
  border: 5px solid rgba(255,255,255,0.25);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

.success { border: 1px solid rgba(0,209,178,0.4); background: rgba(0,209,178,0.08); margin-top: 16px; }
.highlight { margin-top: 12px; background: rgba(255,122,89,0.08); border: 1px solid rgba(255,122,89,0.3); }
.tiny { font-size: 12px; }
.pay-card img { max-width: 180px; display: block; margin-top: 8px; border: 1px solid var(--stroke); border-radius: 12px; }
.pix-result { margin-top: 10px; border-top: 1px solid var(--stroke); padding-top: 10px; }
.footer { text-align: center; color: var(--muted); padding: 24px; border-top: 1px solid var(--stroke); }

.wa-float {
  position: fixed;
  right: 18px;
  bottom: 18px;
  background: #25D366;
  color: #0b1a2b;
  border-radius: 999px;
  padding: 12px 18px;
  font-weight: 700;
  box-shadow: 0 12px 30px rgba(0,0,0,0.35);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  z-index: 50;
}
.wa-float:hover { transform: translateY(-2px); box-shadow: 0 18px 36px rgba(0,0,0,0.4); }
.wa-icon::before {
  content: '☎';
  display: inline-block;
  font-size: 14px;
}

.detail-layout { display: grid; grid-template-columns: 1.4fr 1fr; gap: 16px; }
.detail-gallery { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px,1fr)); gap: 10px; }
.detail-gallery img { width: 100%; border: 1px solid var(--stroke); border-radius: 14px; background: #0b1a2b; object-fit: contain; height: 180px; }
.detail-info .detail-colors { display: flex; gap: 8px; margin: 12px 0; flex-wrap: wrap; }
.detail-colors .chip-btn { padding: 8px 12px; border: 1px solid var(--stroke); border-radius: 10px; background: rgba(255,255,255,0.04); color: var(--text); cursor: pointer; display: inline-flex; align-items: center; gap: 6px; }
.detail-colors .chip-btn.active { border-color: var(--accent); color: var(--accent); background: rgba(0,209,178,0.08); }
.detail-actions { margin-top: 12px; display: flex; gap: 10px; }

@media (max-width: 900px) {
  main { padding: 20px; }
  .hero { grid-template-columns: 1fr; }
  .cart-layout { grid-template-columns: 1fr; }
  .topbar { flex-wrap: wrap; gap: 10px; }
  .detail-layout { grid-template-columns: 1fr; }
}