/* ============================================================
   NATURAL BIOVITAL — Landing Page CSS
   ============================================================ */

/* ── Hero ── */
.landing-nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 500;
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 24px; transition: all .3s;
}
.landing-nav.scrolled { background: rgba(255,255,255,.97); box-shadow: 0 2px 16px rgba(0,0,0,.1); }
.nav-logo { display: flex; align-items: center; gap: 10px; }
.nav-logo-img { width: 40px; height: 40px; border-radius: 10px; background: var(--blue); display: flex; align-items: center; justify-content: center; font-size: 1.2rem; }
.nav-logo h2 { margin: 0; font-size: 1.15rem; color: #fff; transition: color .3s; }
.landing-nav.scrolled .nav-logo h2 { color: var(--gray-dark); }
.nav-cta { display: flex; gap: 10px; align-items: center; }

.hero-section {
  min-height: 100vh; background: linear-gradient(160deg, #0d5c99 0%, #1a7bc4 40%, #2ea3f2 100%);
  display: flex; align-items: center; justify-content: center; padding: 100px 24px 60px;
  position: relative; overflow: hidden;
}
.hero-section::before {
  content: ''; position: absolute; bottom: -2px; left: 0; right: 0; height: 80px;
  background: var(--bg); clip-path: ellipse(110% 100% at 50% 100%);
}
.hero-content { text-align: center; color: #fff; max-width: 680px; position: relative; z-index: 1; }
.hero-badge { display: inline-flex; align-items: center; gap: 6px; background: rgba(255,255,255,.15); color: #fff; padding: 6px 14px; border-radius: 50px; font-size: .8rem; font-weight: 600; margin-bottom: 20px; backdrop-filter: blur(4px); }
.hero-content h1 { font-size: 2.6rem; margin-bottom: 16px; line-height: 1.2; color: #fff; }
.hero-content h1 span { color: #a8d8f0; }
.hero-content p  { font-size: 1.05rem; opacity: .9; margin-bottom: 30px; max-width: 500px; margin-left: auto; margin-right: auto; }
.hero-btns { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }
.btn-hero-primary { background: #fff; color: var(--blue-dark); font-size: 1rem; padding: 14px 28px; font-weight: 700; border-radius: 50px; }
.btn-hero-primary:hover { background: var(--green-light); color: var(--green); }
.btn-hero-outline { background: transparent; color: #fff; border: 2px solid rgba(255,255,255,.6); font-size: 1rem; padding: 14px 28px; border-radius: 50px; }
.btn-hero-outline:hover { background: rgba(255,255,255,.15); color: #fff; }
.hero-whatsapp { margin-top: 20px; display: flex; align-items: center; justify-content: center; gap: 8px; color: rgba(255,255,255,.75); font-size: .85rem; }
.hero-whatsapp a { color: #5ee65e; font-weight: 600; }

/* ── Sección features ── */
.section { padding: 72px 24px; }
.section-light { background: var(--bg); }
.section-white { background: #fff; }
.section-blue  { background: linear-gradient(135deg, #e8f4fd, #f0f9ff); }
.container { max-width: 1100px; margin: 0 auto; }
.section-header { text-align: center; margin-bottom: 50px; }
.section-header .badge-section { background: var(--blue-light); color: var(--blue-dark); padding: 5px 14px; border-radius: 50px; font-size: .78rem; font-weight: 700; display: inline-block; margin-bottom: 12px; }
.section-header h2 { font-size: 2rem; margin-bottom: 12px; }
.section-header p { color: var(--gray); max-width: 550px; margin: 0 auto; }

.features-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 24px; }
.feature-card { background: #fff; border-radius: var(--radius-lg); padding: 24px; box-shadow: var(--shadow); border-top: 4px solid transparent; transition: all .3s; }
.feature-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); border-top-color: var(--blue); }
.feature-icon { width: 54px; height: 54px; border-radius: 14px; background: var(--blue-light); display: flex; align-items: center; justify-content: center; font-size: 1.5rem; margin-bottom: 16px; }
.feature-icon.green  { background: var(--green-light); }
.feature-icon.orange { background: var(--orange-light); }
.feature-card h3 { font-size: 1.1rem; margin-bottom: 8px; }
.feature-card p  { font-size: .875rem; color: var(--gray); margin: 0; }

/* ── Proceso ── */
.proceso-steps { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 20px; position: relative; }
.proceso-step { text-align: center; padding: 20px; }
.paso-num { width: 50px; height: 50px; background: var(--blue); color: #fff; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 1.2rem; font-weight: 800; margin: 0 auto 14px; font-family: var(--font-alt); }
.proceso-step h4 { font-size: .95rem; margin-bottom: 6px; }
.proceso-step p  { font-size: .82rem; color: var(--gray); margin: 0; }

/* ── Testimonios / Reviews ── */
.reviews-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 20px; }
.review-card { background: #fff; border-radius: var(--radius-lg); padding: 22px; box-shadow: var(--shadow); }
.review-stars { color: #f39c12; font-size: 1rem; margin-bottom: 10px; }
.review-text { font-size: .875rem; color: var(--gray); font-style: italic; margin-bottom: 14px; }
.review-author { display: flex; align-items: center; gap: 10px; }
.review-avatar { width: 38px; height: 38px; border-radius: 50%; background: var(--blue-light); display: flex; align-items: center; justify-content: center; font-weight: 700; color: var(--blue); }
.review-name { font-size: .85rem; font-weight: 700; }
.review-meses { font-size: .72rem; color: var(--gray-mid); }

/* ── CTA final ── */
.cta-section {
  background: linear-gradient(135deg, var(--blue-dark), #0a3d6e);
  padding: 70px 24px; text-align: center; color: #fff;
}
.cta-section h2 { font-size: 2rem; margin-bottom: 12px; color: #fff; }
.cta-section p  { opacity: .85; margin-bottom: 28px; font-size: 1rem; }

/* ── Footer ── */
.landing-footer { background: var(--gray-dark); color: rgba(255,255,255,.6); padding: 28px 24px; text-align: center; font-size: .82rem; }
.landing-footer a { color: rgba(255,255,255,.8); }

/* ── WhatsApp flotante ── */
.whatsapp-float {
  position: fixed; bottom: 24px; right: 20px; z-index: 999;
  width: 54px; height: 54px; background: #25D366; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 4px 20px rgba(37,211,102,.5); text-decoration: none;
  font-size: 1.5rem; color: #fff; transition: transform .2s;
}
.whatsapp-float:hover { transform: scale(1.1); color: #fff; }

/* ── Responsive ── */
@media (max-width: 768px) {
  .hero-content h1 { font-size: 1.9rem; }
  .section { padding: 50px 16px; }
  .section-header h2 { font-size: 1.6rem; }
  .hero-btns { flex-direction: column; align-items: center; }
  .btn-hero-primary, .btn-hero-outline { width: 100%; max-width: 300px; justify-content: center; }
}