:root {
  --header-height: 110px;
  --color-primary: #ff6a00;
  --color-text: #333333;
  --color-text-muted: #555555;
  --color-surface: #ffffff;
  --focus-color: #111111;
  --shadow-soft: 0 5px 15px rgba(0, 0, 0, 0.1);
  --shadow-strong: 0 12px 30px rgba(0, 0, 0, 0.15);
  --site-bg-offset: 36px;
  --site-bg-width: 150vw;
  --site-bg-height: 100vw;
  --site-bg-fade-start: calc(var(--site-bg-offset) + var(--site-bg-height) - 190px);
  --site-bg-fade-mid: calc(var(--site-bg-offset) + var(--site-bg-height) - 70px);
  --site-bg-fade-end: calc(var(--site-bg-offset) + var(--site-bg-height) + 140px);
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Poppins", sans-serif;
  background-color: #ffffff;
  background-image:
    linear-gradient(
      to bottom,
      rgba(243, 244, 247, 0) 0,
      rgba(243, 244, 247, 0) var(--site-bg-fade-start),
      #f3f4f7 var(--site-bg-fade-mid),
      #ffffff var(--site-bg-fade-end)
    ),
    linear-gradient(rgba(255, 255, 255, 0.75), rgba(255, 255, 255, 0.75)),
    url("../assets/img/background.png");
  background-position:
    top left,
    center var(--site-bg-offset),
    center var(--site-bg-offset);
  background-repeat: no-repeat;
  background-size:
    100% var(--site-bg-fade-end),
    var(--site-bg-width) auto,
    var(--site-bg-width) auto;
  color: var(--color-text);
}

img {
  max-width: 100%;
}

a {
  color: inherit;
}

header {
  position: static;
  width: 100%;
  min-height: var(--header-height);
  display: flex;
  align-items: center;
  background: linear-gradient(90deg, var(--color-primary), #ffffff);
}

.header-container {
  width: 100%;
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.logo-header {
  height: 80px;
  display: block;
}

.menu-header {
  display: flex;
  gap: 25px;
  align-items: center;
}

.menu-header a {
  text-decoration: none;
  font-weight: 600;
}

.menu-header a:hover,
.menu-header a:focus-visible {
  color: var(--color-primary);
}

.btn-header,
.hero__cta {
  background: var(--color-primary);
  color: var(--color-surface);
  text-decoration: none;
}

.btn-header {
  padding: 12px 22px;
  border-radius: 22px;
  transition: 0.1s;
}

.btn-header:hover {
  background-color: #e66000;
} 

main {
  display: block;
}

.hero {
  max-width: 1100px;
  margin: 0 auto;
  padding: 40px 20px;
  display: flex;
  align-items: center;
  gap: 40px;
}

.hero-text,
.hero-boxes {
  flex: 1;
}

.hero-text h1 {
  margin: 0 0 16px;
  font-size: 42px;
  font-weight: 800;
  line-height: 1.1;
}

.hero-text p {
  margin: 0 0 24px;
  font-size: 18px;
}

.hero-actions {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 12px;
}

.hero__cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 15px 30px;
  background-color: var(--color-primary);
  color: var(--color-surface);
  border: 1px solid var(--color-primary);
  border-radius: 22px;
  box-shadow: var(--shadow-soft);
  transition: 0.1s;
}

.hero__cta:hover {
  background-color: #e66000;
}

.hero-actions .hero__cta:last-child {
  background-color: #f28a3d;
  border-color: var(--color-primary);
}

.hero-actions .hero__cta:last-child:hover {
  background-color: #e87827;
  border-color: var(--color-primary);
}

.whatsapp-icon {
  width: 20px;
  height: 20px;
  fill: currentColor;
  flex-shrink: 0;
}

.hero__cta .whatsapp-icon {
  display: block;
  fill: #ffffff;
}

.hero__cta-icon {
  width: 16px;
  height: 16px;
  fill: #ffffff;
  flex-shrink: 0;
}

.hero-boxes {
  display: flex;
  flex-direction: column;
  gap: 22px;
}

.hero-feature-card {
  width: 100%;
  min-width: 0;
  min-height: 160px;
  padding: 35px 40px;
  display: flex;
  align-items: center;
  gap: 25px;
  box-sizing: border-box;
  background: var(--color-surface);
  border-radius: 20px;
  box-shadow: var(--shadow-strong);
  transition: transform 0.3s ease;
}

.hero-feature-card__icon {
  min-width: 70px;
  font-size: 48px;
}

.hero-feature-card__content h2 {
  margin: 0;
  font-size: 24px;
  color: var(--color-primary);
}

.hero-feature-card__content p {
  margin: 6px 0 0;
  font-size: 17px;
  color: var(--color-text-muted);
}

.titulo-baterias {
  margin-top: 40px;
  text-align: center;
}

.titulo-baterias h2 {
  display: inline-block;
  font-weight: 600;
  margin: 0;
  padding: 12px 30px;
  border-radius: 3px;
  background: var(--color-primary);
  color: var(--color-surface);
}

.baterias-grid-wrapper {
  position: relative;
  max-width: 1280px;
  margin: 0 auto;
  isolation: isolate;
}

.baterias-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 20px;
  padding: 30px;
}

.battery-card {
  position: relative;
  z-index: 1;
  padding: 15px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  box-sizing: border-box;
  background: var(--color-surface);
  box-shadow: var(--shadow-soft);
  cursor: pointer;
}

.battery-card:hover .battery-card__title {
  color: #3681f5;
}

.battery-card img {
  display: block;
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: contain;
  border-radius: 3px;
}

.battery-card__content {
  flex: 1;
  text-align: left;
}

.battery-card__title {
  margin: 0 0 4px;
  font-size: 1.05rem;
  font-weight: 600;
}

.battery-card__meta {
  margin: 0;
  color: var(--color-text-muted);
  font-size: 0.95rem;
}

.battery-card__price {
  margin: 6px 0 0;
  color: var(--color-text);
  font-size: 1rem;
  font-weight: 600;
}

.battery-card__shipping {
  margin: 0;
  color: #2ea551;
  font-size: 0.85rem;
  font-weight: 600;
  text-align: left;
}

.battery-card__details {
  width: calc(100% + 30px);
  margin: 0 -15px -15px;
  padding: 11px 15px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  box-sizing: border-box;
  background: #FF751F;
  color: #ffffff;
  font-size: 0.9rem;
  font-weight: 600;
  line-height: 1;
}

.battery-card__details-icon {
  width: 16px;
  height: 16px;
  fill: currentColor;
  flex-shrink: 0;
}

footer {
  padding: 40px 20px;
  text-align: center;
  background: var(--color-primary);
  color: var(--color-surface);
}

footer h2 {
  margin-top: 0;
}

.whatsapp-float {
  position: fixed;
  right: 20px;
  bottom: 20px;
  width: 60px;
  height: 60px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #25d366;
  text-decoration: none;
  color: var(--color-surface);
  box-shadow: var(--shadow-strong);
  z-index: 1001;
}

.whatsapp-icon--float {
  width: 40px;
  height: 40px;
}

.btn-header:focus-visible,
.hero__cta:focus-visible,
.battery-card:focus-visible,
.whatsapp-float:focus-visible,
.menu-header a:focus-visible {
  outline: 3px solid var(--focus-color);
  outline-offset: 3px;
}

@media (max-width: 980px) {
  .baterias-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (max-width: 768px) {
  :root {
    --header-height: 112px;
    --site-bg-offset: var(--header-height);
    --site-bg-width: 205vw;
    --site-bg-height: 137vw;
    --site-bg-fade-start: calc(var(--site-bg-offset) + var(--site-bg-height) - 130px);
    --site-bg-fade-mid: calc(var(--site-bg-offset) + var(--site-bg-height) - 42px);
    --site-bg-fade-end: calc(var(--site-bg-offset) + var(--site-bg-height) + 110px);
  }

  .header-container {
    padding: 16px 20px;
    flex-direction: row;
    justify-content: center;
    gap: 0;
  }

  .menu-header {
    display: none;
  }

  .btn-header {
    display: none;
  }

  .hero {
    flex-direction: column;
    gap: 24px;
  }

  .hero-text {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
  }

  .hero-text h1 {
    font-size: 34px;
  }

  .hero-actions {
    align-items: center;
  }

  .hero__cta {
    display: inline-flex;
    width: fit-content;
    margin: 0 auto;
    align-self: center;
    position: relative;
    z-index: 1;
  }

  .hero-feature-card {
    min-width: 0;
    min-height: auto;
    padding: 28px 24px;
  }

  .baterias-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
    padding: 24px 16px;
  }
}