:root {
  --primary: #1A4B7C;
  --accent: #F38D21;
  --text: #4A4A4A;
  --white: #FFFFFF;
  --bg: #FFFFFF;
}
* { box-sizing: border-box }
html, body { margin: 0; padding: 0 }
body {
  font-family: Segoe UI, Roboto, Helvetica Neue, Arial, sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
}
img { max-width: 100%; display: block }
a { color: var(--primary); text-decoration: none }
.container { width: 90%; max-width: 1200px; margin: 0 auto }
h1, h2, h3, h4 { color: var(--primary) }
.btn {
  display: inline-block;
  padding: 12px 20px;
  border-radius: 6px;
  background: var(--primary);
  color: var(--white);
}
.btn.accent { background: var(--accent) }

.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: var(--white);
  border-bottom: 1px solid rgba(0,0,0,0.06);
}
.site-header.scrolled { box-shadow: 0 4px 16px rgba(0,0,0,0.08) }
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 0;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  color: var(--primary);
}
.brand img { width: 42px; height: 42px; object-fit: contain }
.nav ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  gap: 24px;
}
.nav a {
  padding: 8px 6px;
  border-radius: 4px;
}
.nav a:hover { background: rgba(26,75,124,0.08) }
.menu-toggle {
  display: none;
  background: transparent;
  border: none;
  font-size: 24px;
  line-height: 1;
  color: var(--primary);
}

.hero {
  position: relative;
  min-height: 65vh;
  display: grid;
  place-items: center;
  background: linear-gradient(135deg, rgba(26,75,124,0.15), rgba(243,141,33,0.15));
}
.hero-slider { position: relative; width: 100% }
.hero .slide {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  padding: 60px 0;
}
.hero .slide:not(.active) { display: none }
.hero-content {
  text-align: center;
  max-width: 800px;
  padding: 0 20px;
}
.hero-content h1 { font-size: 42px; margin: 0 0 10px }
.hero-content p { font-size: 18px; margin: 0 0 20px }

.presupuesto {
  padding: 50px 0;
  background: #F7F9FC;
}
.form-header { text-align: center; margin-bottom: 24px }
.quote-form { background: var(--white); padding: 20px; border-radius: 10px; box-shadow: 0 6px 24px rgba(0,0,0,0.06) }
.form-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}
.form-field { display: flex; flex-direction: column; gap: 8px }
.form-full { grid-column: 1 / -1 }
label { font-weight: 600 }
input, select, textarea {
  padding: 12px;
  border: 1px solid #ddd;
  border-radius: 6px;
  font-size: 16px;
}
.quote-form .btn { margin-top: 14px }

.servicios-resumen { padding: 50px 0 }
.cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.cards.detailed { grid-template-columns: repeat(2, 1fr) }
.card {
  background: var(--white);
  border-radius: 10px;
  padding: 20px;
  box-shadow: 0 6px 24px rgba(0,0,0,0.06);
}
.card h3 { margin-top: 0 }

.intro { padding: 40px 0 }
.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}
.valores {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  list-style: none;
  padding: 0;
  margin: 0;
}
.valores li {
  background: #F7F9FC;
  padding: 12px;
  border-radius: 6px;
}

.site-footer {
  background: var(--primary);
  color: var(--white);
  margin-top: 40px;
}
.footer-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  padding: 24px 0;
}
.footer-col h4 { margin: 0 0 10px; color: var(--white) }
.footer-col ul { list-style: none; margin: 0; padding: 0 }
.footer-col a { color: var(--white) }
.social { display: grid; gap: 8px }
.copyright { border-top: 1px solid rgba(255,255,255,0.2); padding: 14px 0; text-align: center }

@media (max-width: 992px) {
  .cards { grid-template-columns: repeat(2, 1fr) }
  .valores { grid-template-columns: repeat(2, 1fr) }
}
@media (max-width: 768px) {
  .menu-toggle { display: block }
  .nav { position: absolute; right: 5%; top: 62px; background: var(--white); border: 1px solid #eee; border-radius: 8px; display: none }
  .nav.open { display: block }
  .nav ul { flex-direction: column; gap: 0 }
  .nav a { display: block; padding: 12px 16px }
  .hero-content h1 { font-size: 32px }
  .form-grid { grid-template-columns: 1fr }
  .cards { grid-template-columns: 1fr }
  .grid-2 { grid-template-columns: 1fr }
  .footer-grid { grid-template-columns: 1fr }
}