* {
  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: #ffffff;
  border-bottom: 1px solid #d9efe2;
  position: sticky;
  top: 0;
  z-index: 10;
}

.nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 0;
}

.brand {
  font-size: 1.2rem;
  font-weight: 700;
  color: #155d3b;
}

.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: 0.85rem 1.3rem;
  border-radius: 12px;
  font-weight: 700;
  transition: transform 0.15s ease, opacity 0.15s ease;
}

.btn:hover {
  transform: translateY(-1px);
  text-decoration: none;
}

.btn-primary {
  background: #1c7c54;
  color: #ffffff;
}

.btn-primary:hover {
  opacity: 0.95;
}

.btn-secondary {
  background: #ffffff;
  color: #1c7c54;
  border: 1px solid #b7e0c8;
}

.btn-full {
  width: 100%;
  border: none;
  cursor: pointer;
  font-size: 1rem;
}

.hero-card,
.card,
.benefit,
.contact-box,
.contact-form {
  background: #ffffff;
  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;
}

.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: 0.9rem 1rem;
  margin-bottom: 1rem;
  border: 1px solid #c7e7d3;
  border-radius: 12px;
  font: inherit;
  color: #1f3d2d;
  background: #ffffff;
}

.contact-form input:focus,
.contact-form select:focus,
.contact-form textarea:focus {
  outline: 2px solid #b5e3c7;
  border-color: #1c7c54;
}

.site-footer {
  background: #155d3b;
  color: #ffffff;
  padding: 1.25rem 0;
}

.site-footer a {
  color: #ffffff;
}

.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;
  }
}