:root {
  --red: #e0000f;
  --black: #111;
  --white: #fff;
  --green: #25d366;
  /* WhatsApp */
  --gap: 18px;
  --max-width: 1200px;
  /* --radius: 10px; */
  font-family: Inter, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial;
}

* {
  box-sizing: border-box
}

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

body {
  margin: 0;
  color: var(--black);
  background: #f5f5f6;
  line-height: 1.45
}

/* Thin top strip */
.top-strip {
  background: var(--red);
  color: var(--white);
  font-size: 13px;
  padding: 6px 12px
}

.top-strip .inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px
}

.top-strip .left,
.top-strip .right {
  display: flex;
  gap: 12px;
  align-items: center
}

.socials svg {
  width: 16px;
  height: 16px;
  fill: var(--white);
  opacity: .9
}

/* Header */
header {
  position: sticky;
  top: 0;
  background: var(--white);
  z-index: 60;
  box-shadow: 0 4px 18px rgba(0, 0, 0, 0.06)
}

.nav-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 16px;
  gap: 12px
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px
}

.brand img {
  width: 220px;
}

nav {
  flex: 1;
  text-align: center
}

.menu {
  display: inline-flex;
  gap: 22px;
  align-items: center
}

.menu a {
  color: var(--black);
  text-decoration: none;
  font-weight: 600
}

.menu a:hover {
  color: var(--red)
}

.cta-right {
  display: flex;
  align-items: center;
  gap: 12px
}

.dropdown {
  position: relative
}

.drop-btn {
  /* background: transparent; */
  /* border: 1px solid #ddd; */
  border: none;
  padding: 12px 22px;
  /* border-radius: 8px; */
  cursor: pointer;
  font-weight: 700;
  background: var(--red);
  color: #fff;
  /* border-radius: 8px; */
  /* padding: 9px 12px */
}

.drop-btn:after {
  content: ' ▼';
  font-size: 12px
}

.drop-list {
  position: absolute;
  right: 0;
  top: calc(100% + 8px);
  background: var(--white);
  box-shadow: 0 8px 28px rgba(0, 0, 0, 0.12);
  /* border-radius: 8px; */
  padding: 8px;
  display: none;
  min-width: 160px
}

.drop-list a {
  display: block;
  padding: 8px;
  /* border-radius: 6px; */
  text-decoration: none;
  color: var(--black)
}

.drop-list a:hover {
  background: #f4f4f4
}

.drop-list a:nth-child(1) {
  border-bottom: 2px solid #d9d9d9;
}

.drop-list a img {
  width: 20px;
  transform: translateY(2px);
  margin-right: 10px;
}

/* Hero / Slider */
.hero {
  position: relative;
  overflow: hidden
}

.slides {
  display: flex;
  transition: transform .6s ease;
  will-change: transform
}

.slide {
  min-height: 70vh;
  min-width: 100%;
  display: grid;
  place-items: center;
  color: var(--white);
  position: relative
}

.slide .overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(0, 0, 0, .35), rgba(0, 0, 0, .5));
}

.slide .content {
  position: relative;
  z-index: 2;
  max-width: 1100px;
  padding: 40px;
  display: flex;
  gap: 20px;
  align-items: center
}

.hero h1 {
  font-size: 44px;
  margin: 0 0 10px;
  font-weight: 800;
  letter-spacing: -1px
}

.hero p {
  margin: 0
}

.hero .cta {
  background: var(--red);
  color: var(--white);
  padding: 12px 18px;
  /* border-radius: 10px; */
  font-weight: 700;
  display: inline-block
}

.hero .tag {
  background: rgba(255, 255, 255, 0.08);
  padding: 8px 12px;
  /* border-radius: 8px; */
  font-weight: 700
}

/* Slider controls */
.hero-controls {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  bottom: 18px;
  display: flex;
  gap: 8px;
  z-index: 4
}

.dot {
  width: 12px;
  height: 12px;
  /* border-radius: 50%; */
  background: rgba(255, 255, 255, 0.5);
  cursor: pointer
}

.dot.active {
  background: var(--red)
}

/* Descriptive section */
.section {
  padding: 48px 16px
}

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

.intro {
  display: grid;
  grid-template-columns: 1fr 420px;
  gap: 28px;
  align-items: center
}

.intro p {
  font-size: 16px;
  color: #333
}

.video-wrap iframe {
  width: 100%;
  height: 260px;
  /* border-radius: 8px; */
  border: 0
}

/* Product sections */
.products-section {
  padding: 28px 16px;
  background: linear-gradient(180deg, #fff, #fbfbfb)
}

.category {
  margin-bottom: 28px
}

.category h2 {
  display: flex;
  align-items: center;
  gap: 12px;
  padding-left: 10px;
  border-left: 4px solid var(--red);
}

.cards {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
  margin-top: 12px
}

.card {
  background: #f4f4f4;
  /* border-radius: 12px; */
  padding: 12px;
  /* box-shadow: 0 6px 18px rgba(0, 0, 0, 0.06); */
  /* text-align: center; */
  border: 2px solid #adadad;
}

.card img {
  width: 100%;
  /* height: 240px; */
  object-fit: cover;
  /* border-radius: 8px */
}

.card h3 {
  font-size: 16px;
  margin: 10px 0 6px
}

.card p {
  font-size: 13px;
  color: #666;
  margin: 0 0 10px
}

.card .btns {
  display: flex;
  gap: 8px;
  justify-content: center
}

.btn {
  padding: 10px 12px;
  /* border-radius: 8px; */
  font-weight: 700;
  border: none;
  cursor: pointer
}

.btn-primary {
  background: var(--red);
  color: var(--white);
  width: 100%;
}

.btn-whatsapp {
  background: var(--green);
  color: var(--white);
  width: 100%;
}

.btn-ghost {
  background: #f2f2f2;
  color: #222
}

/* Videos gallery */
.videos-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px
}

.video-thumb {
  background: #ffffff;
  padding: 8px 12px;
  /* border-radius: 8px; */
  /* box-shadow: 0 6px 16px rgba(0, 0, 0, 0.06) */
  border: 2px solid #adadad;
}

.video-thumb img {
  width: 100%;
  height: 140px;
  object-fit: cover;
  /* border-radius: 6px */
}

.video-thumb h4 {
  font-size: 14px;
  margin: 8px 20px;
  font-weight: 600;
}

/* Promo block */
.promo {
  height: 400px;
  position: relative;
  /* margin: 28px 16px; */
  /* border-radius: 12px; */
  overflow: hidden;
  background-image: url('../images/product-bg.jpg');
  background-size: cover;
  background-position: center;
  /* filter: contrast(.9) brightness(.6); */
}

/* .promo .bg {
  background-image: url('https://images.unsplash.com/photo-1542831371-d531d36971e6?auto=format&fit=crop&w=1600&q=60');
  background-size: cover;
  background-position: center;
  filter: contrast(.9) brightness(.6);
  min-height: 180px
} */

.promo .promo-inner {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 28px
}

.promo .box {
  /* background: rgba(255, 255, 255, 0.05);
  padding: 22px; */
  /* border-radius: 12px; */
  color: var(--white);
  text-align: center
}

.promo .box h3 {
  font-size: 22px;
  margin: 0 0 8px
}

.promo .box .actions {
  display: flex;
  gap: 10px;
  justify-content: center;
  margin-top: 12px
}

.btn-whatsapp {
  background: var(--green);
  color: #fff
}

/* Certifications and catalogs */
.cert-cat {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
  align-items: start;
  padding: 28px 16px
}

.cert {
  /* background: var(--white); */
  padding: 16px;
  /* border-radius: 8px; */
  /* box-shadow: 0 8px 20px rgba(0, 0, 0, 0.06); */
  text-align: center
}

/* Contact */
.contact {
  background: linear-gradient(180deg, #fff, #fafafa);
  padding: 28px 16px
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 420px;
  gap: 18px
}

form {
  /* background: var(--white); */
  padding: 18px;
  /* border-radius: 12px; */
  /* box-shadow: 0 8px 18px rgba(0, 0, 0, 0.06) */
}

label {
  display: block;
  font-weight: 700;
  margin-bottom: 6px
}

input[type=text],
input[type=email],
textarea {
  width: 100%;
  padding: 10px;
  /* border-radius: 8px; */
  border: 1px solid #e6e6e6;
  margin-bottom: 12px;
  font-family: inherit;
}

textarea {
  min-height: 120px
}

/* Footer */
footer {
  background: #111;
  color: #fff;
  padding: 18px;
  text-align: center
}

footer img {
  height: 36px;
  vertical-align: middle
}

/* Responsive */
@media (max-width:1000px) {
  .cards {
    grid-template-columns: repeat(2, 1fr)
  }

  .videos-grid {
    grid-template-columns: repeat(2, 1fr)
  }

  .intro {
    grid-template-columns: 1fr
  }

  .contact-grid {
    grid-template-columns: 1fr
  }

  .hero h1 {
    font-size: 36px
  }
}

@media (max-width:890px) {
  header .nav-inner nav {
    display: none;
  }
}

@media (max-width:620px) {
  .top-strip .inner {
    display: block;
  }

  .top-strip .left {
    justify-content: center;
  }

  .top-strip .right {
    display: none;
  }

  .menu {
    display: none;
  }

  header .nav-inner nav {
    display: none;
  }

  .brand img {
    width: 200px;
  }

  /* .card img {
    height: 240px
  } */

  .slides {
    transition: none
  }

  .hero h1 {
    font-size: 28px
  }

  .cards {
    grid-template-columns: 1fr
  }

  .videos-grid {
    grid-template-columns: 1fr
  }
}

@media (max-width:380px) {
  .brand img {
    height: 30px
  }

}