:root {
  --default-font: "Open Sans", system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --heading-font: "Raleway", sans-serif;
  --nav-font: "Poppins", sans-serif;

  --background-color: #ffffff;
  --default-color: #444444;
  --heading-color: #37423b;
  --accent-color: #5fcf80;
  --accent-dark: #3fb563;
  --surface-color: #ffffff;
  --contrast-color: #ffffff;
  --nav-color: #272828;
  --nav-hover-color: #5fcf80;
  --light-background: #f9f9f9;
  --border-soft: color-mix(in srgb, var(--default-color), transparent 88%);
  --shadow-soft: 0 6px 30px rgba(0, 0, 0, 0.08);
  --header-h: 72px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  color: var(--default-color);
  background-color: var(--background-color);
  font-family: var(--default-font);
  font-size: 16px;
  line-height: 1.6;
}

a { color: var(--accent-color); text-decoration: none; transition: color 0.3s; }
a:hover { color: color-mix(in srgb, var(--accent-color), transparent 25%); }

h1, h2, h3, h4, h5, h6 {
  color: var(--heading-color);
  font-family: var(--heading-font);
  margin: 0 0 0.5rem;
  line-height: 1.2;
}

img { max-width: 100%; }

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 18px;
}

/* ---------- Header (igual al sitio Aconcagua Vivo) ---------- */
.header {
  position: sticky;
  top: 0;
  z-index: 997;
  height: var(--header-h);
  display: flex;
  align-items: center;
  background-color: var(--background-color);
  color: var(--default-color);
  box-shadow: 0 0 18px rgba(0, 0, 0, 0.1);
}
.header .container { display: flex; align-items: center; gap: 1.5rem; }
.header .logo { display: flex; align-items: center; gap: 10px; margin-right: auto; line-height: 1; }
.header .logo img { height: 46px; width: auto; }
.header .logo .sitename {
  font-family: var(--heading-font);
  font-size: 28px;
  font-weight: 700;
  margin: 0;
  color: var(--heading-color);
  letter-spacing: 0.2px;
}
.header .logo .sitename small {
  display: block;
  font-family: var(--nav-font);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 1.6px;
  text-transform: uppercase;
  color: var(--accent-color);
  margin-top: 4px;
}

.navmenu ul { display: flex; list-style: none; margin: 0; padding: 0; gap: 4px; align-items: center; }
.navmenu a {
  display: block;
  padding: 10px 14px;
  font-family: var(--nav-font);
  font-size: 15px;
  font-weight: 500;
  color: var(--nav-color);
  white-space: nowrap;
}
.navmenu a:hover, .navmenu a.active { color: var(--nav-hover-color); }
.mobile-nav-toggle { display: none; font-size: 28px; cursor: pointer; color: var(--nav-color); background: none; border: 0; }

.btn-accent {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--nav-font);
  font-weight: 500;
  font-size: 14px;
  color: var(--contrast-color);
  background: var(--accent-color);
  padding: 9px 25px;
  border-radius: 50px;
  border: 0;
  cursor: pointer;
  transition: background 0.3s;
  white-space: nowrap;
}
.btn-accent:hover { color: var(--contrast-color); background: color-mix(in srgb, var(--accent-color), transparent 15%); }

@media (max-width: 1199px) {
  .mobile-nav-toggle { display: block; }
  .navmenu ul {
    display: none;
    position: absolute;
    top: calc(var(--header-h) - 4px);
    left: 16px;
    right: 16px;
    flex-direction: column;
    align-items: stretch;
    padding: 10px 0;
    background: var(--background-color);
    border-radius: 8px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.12);
    z-index: 1000;
  }
  .navmenu.open ul { display: flex; }
  .navmenu a { padding: 10px 20px; }
}