* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; font-family: Arial, Helvetica, sans-serif; background: #ffffff; color: #1f3d2d; line-height: 1.6; }
a { color: #1c7c54; text-decoration: none; }
a:hover { text-decoration: underline; }
.container { width: min(1100px, calc(100% - 2rem)); margin: 0 auto; }
.site-header { background: rgba(255,255,255,0.96); border-bottom: 1px solid #d9efe2; position: sticky; top: 0; z-index: 10; backdrop-filter: blur(8px); }
.nav { display: flex; justify-content: space-between; align-items: center; padding: 1rem 0; gap: 1rem; }
.brand { font-size: 1.2rem; font-weight: 700; color: #155d3b; }
.nav-actions { display: flex; align-items: center; gap: 0.75rem; flex-wrap: wrap; }
.lang-btn { border: 1px solid #b7e0c8; background: #fff; color: #155d3b; border-radius: 999px; padding: 0.45rem 0.75rem; font-weight: 700; cursor: pointer; }
.lang-btn.active { background: #1c7c54; color: #fff; border-color: #1c7c54; }
.nav-link { font-weight: 600; }
.hero { background: linear-gradient(180deg, #eefaf2 0%, #ffffff 100%); padding: 4rem 0 3rem; }
.hero-grid { display: grid; grid-template-columns: 1.2fr 0.8fr; gap: 2rem; align-items: center; }
.eyebrow { display: inline-block; background: #dff3e7; color: #155d3b; padding: 0.4rem 0.8rem; border-radius: 999px; font-size: 0.9rem; font-weight: 700; margin-bottom: 1rem; }
.hero h1 { font-size: clamp(2rem, 4vw, 3.5rem); line-height: 1.15; margin: 0 0 1rem; color: #123d2a; }
.hero p { font-size: 1.1rem; max-width: 650px; margin: 0 0 1.5rem; color: #355b49; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 0.9rem; }
.btn { display: inline-block; padding: 0.9rem 1.3rem; border-radius: 12px; font-weight: 700; transition: transform 0.15s ease, opacity 0.15s ease, box-shadow 0.15s ease; }
.btn:hover { transform: translateY(-1px); text-decoration: none; box-shadow: 0 10px 24px rgba(21, 93, 59, 0.12); }
.btn-primary { background: #1c7c54; color: #fff; }
.btn-secondary { background: #fff; color: #1c7c54; border: 1px solid #b7e0c8; }
.btn-full { width: 100%; border: none; cursor: pointer; font-size: 1rem; }
.btn-loading { opacity: 0.8; cursor: wait; }
.contact-whatsapp-btn { margin-top: 0.2rem; }

.hero-card, .card, .benefit, .contact-box, .contact-form { background: #fff; border: 1px solid #d9efe2; border-radius: 18px; box-shadow: 0 10px 24px rgba(21, 93, 59, 0.06); }
.hero-card { padding: 1.5rem; }
.hero-card h2 { margin-top: 0; color: #155d3b; }
.hero-card ul { margin: 1rem 0 0; padding-left: 1.2rem; }
.hero-card li + li { margin-top: 0.7rem; }
.section { padding: 4rem 0; }
.section-soft { background: #f5fcf7; }
.section-heading { text-align: center; max-width: 700px; margin: 0 auto 2rem; }
.section-heading.left { text-align: left; margin: 0 0 1.5rem; }
.section h2 { margin: 0 0 0.6rem; font-size: 2rem; color: #123d2a; }
.section-heading p { margin: 0; color: #4a6d5b; }
.course-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.2rem; }
.card, .benefit { padding: 1.4rem; }
.card h3, .benefit h3 { margin-top: 0; color: #155d3b; }
.benefits-grid, .contact-grid { display: grid; gap: 1.2rem; }
.benefits-grid { grid-template-columns: repeat(3, 1fr); }
.contact-grid { grid-template-columns: 0.95fr 1.05fr; align-items: start; }
.contact-box { padding: 1.25rem; }
.contact-box p, .contact-box span { margin: 0.4rem 0 0; display: block; }
.contact-form { padding: 1.5rem; position: relative; }
.contact-form label { display: block; margin: 0 0 0.45rem; font-weight: 700; color: #1f3d2d; }
.contact-form input, .contact-form select, .contact-form textarea { width: 100%; padding: 0.95rem 1rem; margin-bottom: 1rem; border: 1px solid #c7e7d3; border-radius: 12px; font: inherit; color: #1f3d2d; background: #fff; }
.contact-form input:focus, .contact-form select:focus, .contact-form textarea:focus { outline: 2px solid #b5e3c7; border-color: #1c7c54; }
.captcha-box { background: #f5fcf7; border: 1px solid #d9efe2; border-radius: 14px; padding: 1rem; margin-bottom: 1rem; }
.captcha-question { margin: 0 0 0.75rem; color: #355b49; }
.form-status { min-height: 1.5rem; margin: 0.25rem 0 0; font-weight: 700; }
.form-status.success { color: #1c7c54; }
.form-status.error { color: #a12626; }
.honeypot { position: absolute !important; left: -9999px !important; opacity: 0 !important; pointer-events: none !important; }

.toast { position: fixed; right: 1rem; bottom: 1rem; z-index: 1000; transform: translateY(120%); opacity: 0; pointer-events: none; transition: transform 0.35s ease, opacity 0.35s ease; max-width: 420px; width: calc(100% - 2rem); }
.toast.show { transform: translateY(0); opacity: 1; pointer-events: auto; }
.toast-inner { display: grid; grid-template-columns: auto 1fr auto; gap: 0.9rem; align-items: start; background: linear-gradient(180deg, #1c7c54 0%, #166543 100%); color: #fff; border-radius: 18px; box-shadow: 0 18px 36px rgba(22, 101, 67, 0.28); padding: 1rem 1rem 1rem 0.95rem; }
.toast-icon { width: 2rem; height: 2rem; border-radius: 999px; display: grid; place-items: center; font-weight: 700; background: rgba(255,255,255,0.18); }
.toast p { margin: 0.2rem 0 0; color: rgba(255,255,255,0.92); }
.toast-close { border: none; background: transparent; color: #fff; font-size: 1.5rem; line-height: 1; cursor: pointer; }

.whatsapp-float {
  position: fixed;
  right: 1rem;
  bottom: 1rem;
  z-index: 999;
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  background: #25d366;
  color: #fff;
  border-radius: 999px;
  padding: 0.85rem 1rem;
  box-shadow: 0 14px 30px rgba(37, 211, 102, 0.28);
  font-weight: 700;
  text-decoration: none;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.whatsapp-float:hover {
  transform: translateY(-2px);
  box-shadow: 0 18px 34px rgba(37, 211, 102, 0.34);
  text-decoration: none;
}
.whatsapp-icon {
  display: inline-grid;
  place-items: center;
  width: 1.9rem;
  height: 1.9rem;
  border-radius: 999px;
  background: rgba(255,255,255,0.18);
  font-size: 1rem;
}
.whatsapp-label { color: #fff; }

.site-footer { background: #155d3b; color: #fff; padding: 1.25rem 0; }
.site-footer a { color: #fff; }
.footer-inner { display: flex; justify-content: space-between; gap: 1rem; flex-wrap: wrap; }

@media (max-width: 900px) {
  .hero-grid, .contact-grid, .course-grid, .benefits-grid { grid-template-columns: 1fr; }
  .hero { padding-top: 3rem; }
}

@media (max-width: 640px) {
  .whatsapp-float {
    right: 0.75rem;
    bottom: 0.75rem;
    padding: 0.85rem;
  }
  .whatsapp-label {
    display: none;
  }
}