:root {
  --dark: #0d1b2a;
  --primary: #1b9aaa;
  --accent: #f4a261;
  --light: #f8f9fa;
  --font-sans: "Inter", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

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

body {
  font-family: var(--font-sans);
  color: var(--dark);
  background: var(--light);
  line-height: 1.6;
  min-height: 100vh;
}

a {
  color: var(--primary);
  text-decoration: none;
}

a:hover,
a:focus {
  text-decoration: underline;
}

.top-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.5rem clamp(1.5rem, 5vw, 4rem);
  background: white;
  position: sticky;
  top: 0;
  z-index: 10;
  border-bottom: 1px solid rgba(0, 0, 0, 0.05);
}

.logo {
  display: inline-flex;
  align-items: center;
}

.logo img {
  display: block;
  height: 48px;
  width: auto;
}

.lang-switcher {
  display: flex;
  gap: 0.5rem;
}

.lang-btn {
  border: 1px solid var(--primary);
  background: white;
  color: var(--primary);
  padding: 0.4rem 0.8rem;
  cursor: pointer;
  border-radius: 999px;
  font-size: 0.9rem;
  transition: background 0.2s, color 0.2s;
}

.lang-btn.is-active,
.lang-btn:hover {
  background: var(--primary);
  color: white;
}

.hero {
  padding: clamp(3rem, 8vw, 5rem) clamp(1.5rem, 5vw, 5rem);
  background: linear-gradient(135deg, rgba(27, 154, 170, 0.85), rgba(13, 27, 42, 0.85)), url("https://images.unsplash.com/photo-1520607162513-77705c0f0d4a?auto=format&fit=crop&w=1600&q=80");
  background-size: cover;
  background-position: center;
  color: white;
  text-align: left;
}

.hero h1 {
  font-size: clamp(2rem, 4vw, 3rem);
  max-width: 38rem;
  margin-bottom: 1rem;
}

.hero p {
  max-width: 34rem;
  font-size: 1.05rem;
  margin-bottom: 2rem;
}

.cta-btn {
  display: inline-block;
  background: var(--accent);
  color: var(--dark);
  padding: 0.7rem 1.4rem;
  border-radius: 6px;
  font-weight: 600;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.cta-btn:hover,
.cta-btn:focus {
  transform: translateY(-1px);
  box-shadow: 0 10px 20px rgba(244, 162, 97, 0.2);
}

section {
  padding: clamp(3rem, 7vw, 5rem) clamp(1.5rem, 5vw, 5rem);
}

.services,
.proof {
  background: white;
}

.services h2,
.proof h2 {
  font-size: 2rem;
  margin-bottom: 1.5rem;
}

.services ul,
.proof ul {
  list-style: none;
  display: grid;
  gap: 1rem;
}

.services li,
.proof li {
  background: rgba(27, 154, 170, 0.08);
  border-radius: 8px;
  padding: 1rem 1.2rem;
}

.proof {
  background: rgba(13, 27, 42, 0.03);
}

.proof p {
  margin-bottom: 1.5rem;
  max-width: 36rem;
}

.proof .highlights {
  list-style: disc;
  padding-left: 1.5rem;
}

.cta-banner {
  text-align: center;
  background: linear-gradient(135deg, rgba(244, 162, 97, 0.85), rgba(27, 154, 170, 0.85));
  color: white;
}

.cta-banner h2 {
  font-size: 2rem;
  margin-bottom: 1rem;
}

.contact {
  background: white;
}

.contact-card {
  background: rgba(255, 255, 255, 0.95);
  border-radius: 16px;
  box-shadow: 0 18px 35px rgba(13, 27, 42, 0.08);
  padding: clamp(2rem, 6vw, 3rem);
  max-width: 560px;
  margin: 0 auto;
  text-align: center;
}

.contact-card p {
  margin-top: 0.75rem;
  color: rgba(13, 27, 42, 0.72);
}

.contact-actions {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: 1.75rem;
}

.contact-link {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.75rem 1.6rem;
  border-radius: 999px;
  font-weight: 600;
  font-size: 1rem;
  border: 1px solid rgba(13, 27, 42, 0.15);
  background: white;
  color: var(--dark);
  box-shadow: 0 10px 20px rgba(13, 27, 42, 0.08);
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
  text-decoration: none;
}

.contact-link:hover,
.contact-link:focus {
  transform: translateY(-2px);
  box-shadow: 0 14px 25px rgba(13, 27, 42, 0.12);
  text-decoration: none;
}

.contact-link .icon {
  display: inline-flex;
}

.contact-link.whatsapp {
  background: #25d366;
  color: #0d1b2a;
  border-color: #25d366;
}

.contact-link.whatsapp:hover,
.contact-link.whatsapp:focus {
  background: #1eb257;
  box-shadow: 0 16px 26px rgba(30, 178, 87, 0.25);
}

.contact-link.whatsapp svg {
  color: #0d1b2a;
}

.info {
  background: rgba(13, 27, 42, 0.08);
  text-align: center;
}

.footer {
  text-align: center;
  padding: 1.5rem;
  background: #0b1726;
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.85rem;
}

.lang {
  display: none;
}

.lang.is-active {
  display: block;
}

@media (max-width: 720px) {
  .top-bar {
    flex-direction: column;
    gap: 1rem;
    text-align: center;
  }

  .hero {
    text-align: center;
  }

  .hero p {
    margin-inline: auto;
  }

  .services ul,
  .proof ul {
    gap: 0.75rem;
  }

  .contact-link {
    width: 100%;
    justify-content: center;
  }
}