:root {
  --dark-blue: #0f2747;
  --steel-gray: #5f6b7a;
  --light-gray: #e8ecf1;
  --white: #ffffff;
  --accent: #1f4d80;
  --max-width: 1160px;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: Arial, Helvetica, sans-serif;
  color: #1c2430;
  background: var(--white);
  line-height: 1.6;
}

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

img {
  max-width: 100%;
  display: block;
}

.container {
  width: min(94%, var(--max-width));
  margin-inline: auto;
}

.header {
  background: var(--dark-blue);
  color: var(--white);
  position: sticky;
  top: 0;
  z-index: 10;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
}

.nav-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.9rem 0;
}

.brand {
  font-weight: 700;
  font-size: 1.05rem;
}

.brand-wrap {
  display: flex;
  align-items: center;
  gap: 0.65rem;
}

.brand-mark {
  width: 56px;
  height: auto;
  flex-shrink: 0;
}

.brand-text {
  display: inline-block;
}

.tagline {
  display: block;
  font-size: 0.8rem;
  color: #b5c2d1;
  margin-top: 0.1rem;
}

.nav {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.nav a {
  color: var(--white);
  font-weight: 600;
  font-size: 0.95rem;
  opacity: 0.95;
}

.nav a:hover,
.nav a.active {
  color: #dce8f5;
}

.btn {
  display: inline-block;
  background: var(--accent);
  color: var(--white);
  padding: 0.7rem 1.1rem;
  border-radius: 4px;
  font-weight: 700;
  letter-spacing: 0.02em;
}

.btn:hover {
  background: #275d99;
}

.btn.secondary {
  background: transparent;
  border: 2px solid var(--dark-blue);
  color: var(--dark-blue);
}

.btn.secondary:hover {
  background: var(--dark-blue);
  color: var(--white);
}

.btn.whatsapp {
  background: #1f8f44;
}

.hero {
  background: linear-gradient(125deg, #0f2747 30%, #1f4d80 100%);
  color: var(--white);
  padding: 5rem 0;
}

.hero h1 {
  font-size: clamp(1.8rem, 4vw, 3rem);
  margin-bottom: 1rem;
  line-height: 1.2;
}

.hero p {
  max-width: 720px;
  font-size: 1.06rem;
  color: #dde6f0;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  margin-top: 1.7rem;
}

.section {
  padding: 4rem 0;
}

.section h2 {
  color: var(--dark-blue);
  font-size: clamp(1.5rem, 3vw, 2.1rem);
  margin-bottom: 1rem;
}

.section-lead {
  color: #465264;
  max-width: 780px;
  margin-bottom: 2rem;
}

.grid {
  display: grid;
  gap: 1.25rem;
}

.about-grid {
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
}

.about-card {
  background: #f4f7fb;
  border-left: 4px solid var(--accent);
  padding: 1rem;
  border-radius: 6px;
}

.product-grid {
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.card {
  border: 1px solid #d7dee6;
  border-radius: 10px;
  overflow: hidden;
  background: var(--white);
  display: flex;
  flex-direction: column;
}

.card-content {
  padding: 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
  flex-grow: 1;
}

.card h3 {
  color: var(--dark-blue);
  font-size: 1.15rem;
}

.card p {
  color: #4a5669;
  font-size: 0.95rem;
}

.card .btn {
  margin-top: auto;
  align-self: flex-start;
}

.page-hero {
  background: #ecf1f7;
  padding: 2.4rem 0;
  border-bottom: 1px solid #d6dee8;
}

.page-hero h1 {
  color: var(--dark-blue);
  font-size: clamp(1.6rem, 3vw, 2.3rem);
}

.detail-layout {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 2rem;
}

.detail-box h2,
.detail-box h3 {
  color: var(--dark-blue);
  margin-bottom: 0.7rem;
}

.detail-box ul {
  padding-left: 1.1rem;
  margin-bottom: 1.1rem;
}

.detail-box li {
  margin-bottom: 0.45rem;
}

.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  margin-top: 1.3rem;
}

.contact-grid {
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.contact-card {
  border: 1px solid #d7dee6;
  padding: 1.1rem;
  border-radius: 8px;
  background: #f8fafc;
}

.contact-card h3 {
  color: var(--dark-blue);
  margin-bottom: 0.4rem;
}

.footer {
  margin-top: 2rem;
  background: #091a31;
  color: #dde6f2;
  padding: 2.1rem 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.3fr 1fr 1.2fr;
  gap: 1.2rem;
}

.footer h3 {
  color: #ffffff;
  margin-bottom: 0.6rem;
  font-size: 1.05rem;
}

.footer ul {
  list-style: none;
}

.footer li {
  margin-bottom: 0.35rem;
}

.footer a:hover {
  color: #ffffff;
}

.small {
  font-size: 0.9rem;
  color: #adb9c8;
  margin-top: 1rem;
}

@media (max-width: 860px) {
  .nav-wrap {
    flex-wrap: wrap;
  }

  .nav {
    width: 100%;
    justify-content: flex-start;
    flex-wrap: wrap;
  }

  .detail-layout,
  .footer-grid {
    grid-template-columns: 1fr;
  }

  .brand-mark {
    width: 46px;
  }
}