:root {
  --blue: #1D8FD6;
  --blue-dark: #1471AD;
  --blue-light: #E8F4FC;
  --white: #FFFFFF;
  --bg-alt: #F5F8FB;
  --text: #1A2230;
  --muted: #5B6676;
  --border: #E2E8F0;
  --whatsapp: #25D366;
  --radius: 14px;
  --shadow: 0 6px 24px rgba(16, 40, 70, 0.08);
  --header-h: 72px;
}

*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  color: var(--text);
  background: var(--white);
  line-height: 1.6;
}

img { max-width: 100%; display: block; }
a { color: var(--blue); text-decoration: none; }
h1, h2, h3 { line-height: 1.2; margin: 0 0 .5em; }

.container {
  width: 100%;
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 20px;
}

section { scroll-margin-top: var(--header-h); }

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
}
.header-inner {
  height: var(--header-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.logo {
  display: block;
  background: #000;
  border-radius: 10px;
  overflow: hidden;
  height: 52px;
}
.logo img { height: 100%; width: auto; }

.site-nav { display: flex; gap: 8px; align-items: center; }
.site-nav a {
  color: var(--text);
  font-weight: 500;
  padding: 8px 14px;
  border-radius: 8px;
  transition: background .2s, color .2s;
}
.site-nav a:hover { background: var(--blue-light); color: var(--blue); }
.site-nav .nav-cta { background: var(--blue); color: var(--white); }
.site-nav .nav-cta:hover { background: var(--blue-dark); color: var(--white); }

.nav-toggle {
  display: none;
  background: none;
  border: 0;
  padding: 10px;
  cursor: pointer;
}
.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  margin: 5px 0;
  background: var(--text);
  transition: transform .25s, opacity .25s;
}
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Buttons */
.btn {
  display: inline-block;
  padding: 13px 26px;
  border-radius: 999px;
  font-weight: 600;
  transition: background .2s, color .2s, transform .2s;
}
.btn:hover { transform: translateY(-2px); }
.btn-primary { background: var(--white); color: var(--blue); }
.btn-primary:hover { background: var(--blue-light); }
.btn-outline { border: 2px solid var(--white); color: var(--white); }
.btn-outline:hover { background: rgba(255, 255, 255, .15); }
.btn-whatsapp { background: var(--whatsapp); color: var(--white); }
.btn-whatsapp:hover { background: #1EBE5A; }

/* Hero */
.hero {
  background: linear-gradient(135deg, var(--blue) 0%, var(--blue-dark) 100%);
  color: var(--white);
  padding: 96px 0 104px;
}
.hero-inner { max-width: 760px; }
.eyebrow {
  text-transform: uppercase;
  letter-spacing: .12em;
  font-size: .8rem;
  font-weight: 600;
  opacity: .85;
  margin: 0 0 12px;
}
.hero h1 { font-size: clamp(2rem, 5vw, 3.2rem); }
.lead { font-size: 1.15rem; opacity: .92; margin: 0 0 32px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; }

/* Sections */
.section { padding: 80px 0; }
.section-alt { background: var(--bg-alt); }
.section-head { text-align: center; max-width: 620px; margin: 0 auto 48px; }
.section-head h2, .about-grid h2 { font-size: clamp(1.7rem, 3.5vw, 2.3rem); }
.section-head p { color: var(--muted); margin: 0; }

/* Products */
.product-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}
.card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: transform .25s, box-shadow .25s;
}
.card:hover { transform: translateY(-6px); box-shadow: 0 14px 36px rgba(16, 40, 70, .14); }
.card img { width: 100%; aspect-ratio: 16 / 10; object-fit: cover; }
.card-body { padding: 22px 24px 26px; }
.card-body h3 { font-size: 1.25rem; }
.card-body p { color: var(--muted); margin: 0; }

/* About */
.about-grid { display: grid; gap: 40px; align-items: center; }
.about-grid p { color: var(--muted); }
.highlights { list-style: none; margin: 0; padding: 0; display: grid; gap: 16px; }
.highlights li {
  display: flex;
  gap: 16px;
  align-items: center;
  background: var(--white);
  padding: 18px 20px;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}
.highlights strong { display: block; }
.highlights span:not(.hl-icon) { color: var(--muted); font-size: .95rem; }
.hl-icon {
  flex: 0 0 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--blue-light);
  color: var(--blue);
  display: grid;
  place-items: center;
  font-size: 1.2rem;
  font-weight: 700;
}

/* Contact */
.contact-grid { display: grid; gap: 20px; grid-template-columns: 1fr; }
.contact-item {
  text-align: center;
  padding: 28px 20px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--white);
}
.contact-item h3 {
  font-size: .85rem;
  text-transform: uppercase;
  letter-spacing: .1em;
  color: var(--muted);
}
.contact-item a, .contact-item p {
  font-size: 1.1rem;
  font-weight: 600;
  margin: 0;
  word-break: break-word;
}
.contact-item p { color: var(--text); }
.contact-cta { text-align: center; margin-top: 36px; }

/* Footer */
.site-footer {
  background: #0F1824;
  color: rgba(255, 255, 255, .7);
  text-align: center;
  padding: 28px 0;
  font-size: .9rem;
}
.site-footer p { margin: 0; }

/* Floating WhatsApp */
.whatsapp-float {
  position: fixed;
  right: 20px;
  bottom: 20px;
  width: 58px;
  height: 58px;
  border-radius: 50%;
  background: var(--whatsapp);
  color: var(--white);
  display: grid;
  place-items: center;
  box-shadow: 0 8px 24px rgba(0, 0, 0, .2);
  z-index: 60;
  transition: transform .2s;
}
.whatsapp-float:hover { transform: scale(1.08); }

/* Responsive */
@media (min-width: 600px) {
  .product-grid { grid-template-columns: repeat(2, 1fr); }
  .contact-grid { grid-template-columns: repeat(3, 1fr); }
}
@media (min-width: 900px) {
  .product-grid { grid-template-columns: repeat(3, 1fr); }
  .about-grid { grid-template-columns: 1.2fr 1fr; gap: 64px; }
}
@media (max-width: 767px) {
  :root { --header-h: 64px; }
  .logo { height: 44px; }
  .nav-toggle { display: block; }
  .site-nav {
    position: absolute;
    top: var(--header-h);
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 4px;
    padding: 12px 20px 20px;
    background: var(--white);
    border-bottom: 1px solid var(--border);
    box-shadow: var(--shadow);
    display: none;
  }
  .site-nav.open { display: flex; }
  .site-nav a { padding: 12px 14px; }
  .hero { padding: 64px 0 72px; }
  .section { padding: 60px 0; }
}