/* homelanding.css – UX/UI v3 Monocromo con acentos Amarillo Caterpillar */
:root {
  --clr-bg: #ffffff;
  --clr-text: #000000;
  --clr-gray-light: #f5f5f5;
  --clr-gray: #cccccc;
  --clr-gray-dark: #666666;
  --clr-accent: #FFC100; /* Amarillo Caterpillar */
}

/* Reset básico */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
html {
  scroll-behavior: smooth;
}
body {
  font-family: 'Montserrat', Arial, sans-serif;
  color: var(--clr-text);
  background: var(--clr-bg);
  overflow-x: hidden;
}
a {
  color: var(--clr-text);
  text-decoration: none;
}

/* ─── Topbar ─── */
.topbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 64px;
  background: rgba(255,255,255,0.9);
  border-bottom: 1px solid var(--clr-gray);
  z-index: 20;
}
.container {
  max-width: 1280px;
  margin: 0 auto;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 1rem;
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 1.2rem;
  font-weight: 600;
}
.nav-links a {
  font-size: .95rem;
  color: var(--clr-gray-dark);
  transition: color .15s;
}
.nav-links a:hover {
  color: var(--clr-text);
}
.home-icon {
  font-size: 1.2rem;
  color: var(--clr-gray-dark);
  transition: color .15s;
}
.home-icon:hover {
  color: var(--clr-text);
}
.btn-nav {
  padding: .45rem 1.1rem;
  border: 2px solid var(--clr-accent);
  border-radius: 50px;
  background: var(--clr-accent);
  color: var(--clr-text);
  display: inline-flex;
  align-items: center;
  gap: .4rem;
  font-weight: 600;
  transition: background .2s;
}
.btn-nav:hover {
  background: #e6ad00;
}

/* ─── Hero ─── */
.hero-bg {
  position: fixed;
  inset: 0;
  /* for full lienzo view */
  background:
    url("../img/lienzo.png") center/contain no-repeat,
    linear-gradient(120deg, var(--clr-gray-light), var(--clr-gray));
  z-index: -2;
}
.hero::before {
  content: "";
  position: fixed;
  inset: 0;
  background: rgba(255,255,255, .6);
  z-index: -1;
}
.hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 5rem 1rem 4rem; /* reduce top padding so lienzo quede visible */
}
.hero-logo {
  max-width: 70%;
  height: auto;
  margin-bottom: 2rem;
}

/* ─── Features ─── */
.features.container {
  padding: 5rem 1rem;
  background: var(--clr-bg);
}
.section-title {
  font-size: 2rem;
  color: var(--clr-text);
  font-weight: 700;
  display: flex;
  justify-content: center;
  align-items: center;
  gap: .6rem;
  margin-bottom: 2.5rem;
}
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 2rem;
  /* transparent cards so hero-bg shows through beneath entire page */
  background: transparent;
}
.feature-card {
  background: rgba(255,255,255,0.85);
  border-radius: 16px;
  padding: 2rem 1.5rem;
  text-align: center;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
  transition: transform .2s ease;
}
.feature-card:hover {
  transform: translateY(-4px);
}
.feature-card i {
  font-size: 2.3rem;
  color: var(--clr-accent);
  margin-bottom: 1rem;
}
.feature-card h3 {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--clr-text);
}
.feature-card p,
.feature-card ul {
  font-size: .96rem;
  line-height: 1.5;
  color: var(--clr-gray-dark);
  margin-top: .5rem;
}

/* ─── Suscripción ─── */
.cta-suscripcion {
  background: var(--clr-gray-dark);
  color: var(--clr-bg);
  padding: 3.5rem 1rem;
  margin-top: 4rem;
  text-align: center;
  border-top: 4px solid var(--clr-accent);
  border-radius: 12px;
}
.suscripcion-box h2 {
  font-size: 1.8rem;
  font-weight: 700;
  margin-bottom: .6rem;
  display: flex;
  justify-content: center;
  align-items: center;
  gap: .5rem;
  color: var(--clr-bg);
}
.suscripcion-box p {
  font-size: 1.05rem;
  color: var(--clr-bg);
  margin-bottom: 1.8rem;
}
.form-suscripcion {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: .8rem;
}
.form-suscripcion input[type="email"] {
  padding: .75rem 1rem;
  font-size: 1rem;
  border: none;
  border-radius: 8px;
  min-width: 280px;
  background: var(--clr-bg);
  color: var(--clr-text);
  outline: none;
}
.form-suscripcion button {
  background-color: var(--clr-accent);
  color: var(--clr-bg);
  border: none;
  padding: .75rem 1.5rem;
  font-size: 1rem;
  border-radius: 8px;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: .4rem;
  transition: background-color 0.2s ease;
}
.form-suscripcion button:hover {
  background-color: #e6ad00;
}

/* ─── Footer ─── */
footer {
  background: var(--clr-gray-light);
  padding: 1.8rem 0;
  font-size: .85rem;
  color: var(--clr-text);
}
.footer-grid {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 1rem;
}
.footer-grid address,
.footer-grid .social {
  color: var(--clr-text);
}
.social a {
  margin-left: .8rem;
  font-size: 1.2rem;
  color: var(--clr-accent);
  transition: opacity .15s;
}
.social a:hover {
  opacity: .75;
}

/* ─── Responsive ─── */
@media (max-width: 900px) {
  .hero {
    padding-top: 6rem;
  }
  .hero-logo {
    max-width: 80%;
  }
}
@media (max-width: 600px) {
  .nav-links a:not(.btn-nav):not(.home-icon) {
    display: none;
  }
  .footer-grid {
    flex-direction: column;
    text-align: center;
  }
  .btn-nav {
    padding: .4rem .9rem;
    font-size: .85rem;
  }
}