:root {
  --accent: #A7D7D8;
  --accent-dark: #7fb9ba;
  --text: #141414;
  --heading: #000000;
  --max-width: 1100px;
  --font: 'Inter', Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: var(--font);
  color: var(--text);
  line-height: 1.6;
  background: #fff;
}

a { color: inherit; text-decoration: none; }

img { max-width: 100%; display: block; }

.wrap {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

/* Header */
header.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 24px;
  max-width: var(--max-width);
  margin: 0 auto;
  flex-wrap: wrap;
  gap: 16px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
}

.logo-mark {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.logo-mark img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.logo-text {
  line-height: 1.1;
}

.logo-text .name {
  font-weight: 700;
  letter-spacing: 1px;
  font-size: 15px;
  color: #2f6f6e;
}

.logo-text .tagline {
  font-weight: 600;
  letter-spacing: 2px;
  font-size: 11px;
  color: #2f6f6e;
}

nav.main-nav {
  display: flex;
  align-items: center;
  gap: 28px;
  flex-wrap: wrap;
}

nav.main-nav a.nav-link {
  font-size: 14px;
  letter-spacing: 0.5px;
  font-weight: 500;
  text-transform: uppercase;
  color: #333;
}

nav.main-nav a.nav-link:hover { color: #000; }

.btn {
  display: inline-block;
  background: var(--accent);
  color: #000;
  font-weight: 600;
  padding: 12px 22px;
  border-radius: 8px;
  border: none;
  cursor: pointer;
  font-size: 14px;
  font-family: var(--font);
}

.btn:hover { background: var(--accent-dark); }

/* Hero */
.hero {
  background: var(--accent);
  padding: 60px 24px;
}

.hero-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
}

.hero-image {
  width: 70%;
  border-radius: 12px;
  aspect-ratio: 2/3;
  object-fit: cover;
  margin: 0 auto;
}

.hero-text h1 {
  font-size: 34px;
  font-weight: 600;
  margin: 0 0 20px;
  color: var(--heading);
}

.hero-text p { margin: 0 0 12px; }

/* Sections */
section.page-section {
  padding: 60px 24px;
}

section.page-section.tinted { background: #f5fafa; }

h2.section-title {
  font-size: 26px;
  font-weight: 600;
  margin: 0 0 30px;
}

/* Site-wide top banner */
.top-banner {
  background: #2f6f6e;
  color: #fff;
  text-align: center;
  padding: 12px 20px;
  font-size: 14px;
  line-height: 1.5;
}

.top-banner a {
  color: #fff;
  font-weight: 600;
  text-decoration: underline;
}

/* Certification badge */
.cert-badge {
  text-align: center;
  padding: 50px 24px 60px;
}

.cert-badge img {
  max-width: 320px;
  width: 100%;
  margin: 0 auto;
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.service-card {
  background: #f2fafa;
  border: 1px solid #cfe8e8;
  border-radius: 14px;
  padding: 26px 24px;
}

.service-card h3 {
  font-size: 18px;
  margin: 0 0 12px;
  color: #2f6f6e;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--accent);
}

.service-card p { font-size: 15px; color: #333; }

.two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; }

.info-images {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 30px;
}

.diagram-image {
  max-width: 340px;
  width: 100%;
}

.circle-photo {
  width: 280px;
  height: 280px;
  border-radius: 50%;
  object-fit: cover;
  object-position: center 20%;
}

ul.plain-list { padding-left: 20px; margin: 0; }
ul.plain-list li { margin-bottom: 8px; }

.cta-center {
  text-align: center;
  padding: 40px 24px;
}

/* Pricing table */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.price-card {
  border: 1px solid #e0e8e8;
  border-radius: 12px;
  padding: 24px;
}

.price-card h3 { margin: 0 0 6px; font-size: 17px; }
.price-card .price { font-size: 24px; font-weight: 700; color: #2f6f6e; margin: 10px 0 4px; }
.price-card .duration { font-size: 13px; color: #666; margin-bottom: 14px; }

/* FAQ accordion */
details.faq-item {
  border-bottom: 1px solid #e0e8e8;
  padding: 16px 0;
}

details.faq-item summary {
  font-weight: 600;
  cursor: pointer;
  font-size: 16px;
  list-style: none;
}

details.faq-item summary::-webkit-details-marker { display: none; }

details.faq-item summary::after {
  content: '+';
  float: right;
  font-weight: 400;
  font-size: 20px;
}

details.faq-item[open] summary::after { content: '−'; }

details.faq-item p { margin: 12px 0 0; color: #333; }

/* Contact form */
form.contact-form {
  max-width: 560px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

form.contact-form input,
form.contact-form textarea {
  padding: 14px 16px;
  border: 1px solid rgba(0,0,0,0.2);
  border-radius: 8px;
  font-family: var(--font);
  font-size: 15px;
  background: transparent;
}

form.contact-form textarea { min-height: 140px; resize: vertical; }

form.contact-form .form-note {
  font-size: 12px;
  color: #555;
  text-align: center;
}

form.contact-form button { align-self: center; padding: 14px 40px; }

/* Footer */
footer.site-footer {
  border-top: 1px solid #eee;
  padding: 50px 24px 30px;
}

footer.site-footer .wrap {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

footer.site-footer nav {
  display: flex;
  gap: 24px;
  flex-wrap: wrap;
  font-size: 14px;
}

/* Responsive */
@media (max-width: 800px) {
  .hero-inner, .two-col { grid-template-columns: 1fr; }
  .services-grid, .pricing-grid { grid-template-columns: 1fr; }
  nav.main-nav { gap: 16px; }
  .hero-image { width: 100%; }
}