html {
  scroll-behavior: smooth;
}

h1,
h2,
h3,
h4,
h5 {
  font-family: 'Oswald', sans-serif;
  font-weight: 700;
}


.subnav {
  position: fixed;
  width: 100%;
  top: 0;
  z-index: 1020;
  background: #fff;
  border-bottom: 1px solid rgba(0, 0, 0, .06);
  box-shadow: 0 2px 8px rgba(0, 0, 0, .03);
  transform: translateY(-100%);
  opacity: 0;
  pointer-events: none;
  transition: transform .22s ease, opacity .22s ease;
}

.subnav.is-visible {
  transform: translateY(0);
  opacity: 1;
  pointer-events: auto;
}

.subnav__wrap {
  display: flex;
  gap: .5rem;
  align-items: center;
  padding: .5rem 0;
  flex-wrap: wrap;
}

.subnav__link {
  display: inline-block;
  padding: .45rem .8rem;
  border-radius: 999px;
  text-decoration: none;
  color: #333;
  background: #f6f6f6;
  font-weight: 500;
  transition: transform .15s ease, background .15s ease, color .15s ease;
}

.subnav__link:hover {
  transform: translateY(-1px);
  background: #eee;
}

.subnav__link.active {
  background: #ff6900;
  color: #fff;
  box-shadow: 0 4px 10px rgba(255, 105, 0, .25);
}

.subnav__cta {
  display: flex;
  gap: 0.5rem;
  margin-left: auto;
  padding: .45rem .9rem;
  border-radius: 12px;
  background: #ff6900;
  color: #fff;
  text-decoration: none;
  font-weight: 600;
  transition: transform .15s ease, background .15s ease;
  align-items: center;
}

.subnav__cta:hover {
  background: #e35f00;
  transform: translateY(-1px);
}

@media screen and (max-width:576px) {
  .subnav__wrap {
    overflow-x: auto;
    white-space: nowrap;
    gap: .4rem;
  }

  .subnav__link, .subnav__cta {
    font-size: 0.85rem;
    padding: 0.25rem 0.5rem;
  }

  .subnav__cta {
    color: #ff6900;
    background-color: transparent;
  }

  .subnav__cta:hover {
    background-color: transparent;
  }
}

svg {
  display: block;
}

.logo_svg {
  width: 100%;
  max-width: 200px;
  height: auto;
}

.brand-orange {
  color: #ff6900;
}

a.brand-orange {
  color: #ff6900;
  text-decoration: none;
  transition: .2s;
}

a.brand-orange:hover {
  color: #e35f00;
}

.btn-brand {
  background: #ff6900;
  color: #fff;
  font-weight: 600;
  transition: transform 0.2s ease;
}

.btn-brand:hover {
  background: #e35f00;
  transform: scale(1.05);
  color: #fff;
}

.product-card img {
  max-height: 160px;
  object-fit: contain;
  transition: transform 0.3s ease;
}

.product-card:hover img {
  transform: scale(1.05);
}

.advantages img {
  width: 100%;
  max-width: 200px;
}

.adv-card {
  perspective: 1000px;
  cursor: pointer;
}

.adv-inner {
  position: relative;
  width: 100%;
  height: 220px;
  transition: transform 0.6s;
  transform-style: preserve-3d;
}

@media (hover: hover) {
  .adv-card:hover .adv-inner {
    transform: rotateY(180deg);
  }
}

.adv-front,
.adv-back {
  position: absolute;
  width: 100%;
  height: 100%;
  backface-visibility: hidden;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  padding: 15px;
  border-radius: 10px;
  background: #fff;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
  text-align: center;
}

.adv-front img {
  width: 100%;
  max-width: 200px;
  margin-bottom: 10px;
}

.adv-front p {
  font-weight: 600;
}

.adv-back {
  transform: rotateY(180deg);
  background: #ff6900;
  color: #fff;
  font-size: 0.9rem;
  line-height: 1.4;
}

.adv-card.active .adv-inner {
  transform: rotateY(180deg);
}

footer {
  background: #444;
  color: #bbb;
}

.whats-app,
.telegram {
  fill: #bbb;
  transition: .2s;
}

.whats-app:hover {
  fill: #008000;
}

.telegram:hover {
  fill: #2da7e2;
}