:root {
  --teal-900: #0b3b36;
  --teal-800: #0f5951;
  --teal-600: #14807a;
  --teal-500: #1c9c8f;
  --teal-100: #e3f4f1;
  --gold-500: #c8973f;
  --text-dark: #17251f;
  --text-muted: #5c6b64;
  --bg-alt: #f6f8f6;
  --white: #ffffff;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: "Segoe UI", "Noto Sans Thai", Tahoma, sans-serif;
  color: var(--text-dark);
  line-height: 1.6;
}

a { text-decoration: none; color: inherit; }
ul { list-style: none; }

.container {
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Navbar */
.navbar {
  position: sticky;
  top: 0;
  background: var(--white);
  box-shadow: 0 1px 6px rgba(16, 40, 32, 0.06);
  z-index: 100;
}

.navbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.logo {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--text-dark);
  white-space: nowrap;
}

.logo span { color: var(--teal-600); }
.logo small {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-muted);
  margin-left: 4px;
}

.nav-links {
  display: flex;
  gap: 32px;
}

.nav-links a {
  font-weight: 500;
  color: var(--text-muted);
  transition: color 0.2s;
}

.nav-links a:hover { color: var(--teal-600); }

/* Buttons */
.btn {
  display: inline-block;
  padding: 10px 22px;
  border-radius: 8px;
  font-weight: 600;
  transition: all 0.2s;
  border: 2px solid transparent;
}

.btn-primary {
  background: var(--teal-600);
  color: var(--white);
}

.btn-primary:hover { background: var(--teal-800); }

.btn-outline {
  border-color: var(--teal-600);
  color: var(--teal-600);
}

.btn-outline:hover { background: var(--teal-100); }

.btn-lg { padding: 14px 30px; font-size: 1.05rem; }

/* Hero */
.hero {
  background: linear-gradient(135deg, var(--teal-900), var(--teal-600));
  color: var(--white);
  padding: 110px 0;
  text-align: center;
}

.hero-inner h1 {
  font-size: 2.6rem;
  font-weight: 800;
  margin-bottom: 20px;
}

.hero-inner p {
  font-size: 1.15rem;
  opacity: 0.9;
  max-width: 640px;
  margin: 0 auto 32px;
}

.hero-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

.hero .btn-outline {
  border-color: var(--white);
  color: var(--white);
}

.hero .btn-outline:hover { background: rgba(255,255,255,0.12); }

/* Sections */
.section { padding: 90px 0; }
.section-alt { background: var(--bg-alt); }

.section-title {
  text-align: center;
  font-size: 2rem;
  font-weight: 800;
  margin-bottom: 48px;
}

.grid {
  display: grid;
  gap: 28px;
}

.grid-3 {
  grid-template-columns: repeat(3, 1fr);
}

/* Feature / service cards */
.card {
  background: var(--white);
  border: 1px solid #e4ece8;
  border-radius: 14px;
  padding: 32px;
  text-align: center;
  transition: transform 0.2s, box-shadow 0.2s;
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 24px rgba(16, 40, 32, 0.08);
}

.card .icon { font-size: 2.2rem; margin-bottom: 12px; }
.card h3 { margin-bottom: 10px; font-size: 1.2rem; }
.card p { color: var(--text-muted); }

/* Program cards */
.price-card {
  position: relative;
  background: var(--white);
  border: 1px solid #e4ece8;
  border-radius: 16px;
  padding: 40px 32px;
  text-align: center;
}

.price-card.featured {
  border: 2px solid var(--teal-600);
  transform: scale(1.04);
  box-shadow: 0 16px 32px rgba(20, 128, 122, 0.15);
}

.badge {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--gold-500);
  color: var(--white);
  font-size: 0.8rem;
  font-weight: 700;
  padding: 4px 16px;
  border-radius: 999px;
}

.price-card h3 {
  font-size: 1.3rem;
  margin-bottom: 20px;
  color: var(--teal-600);
}

.price-card ul {
  margin-bottom: 28px;
  text-align: left;
}

.price-card ul li {
  padding: 8px 0;
  border-bottom: 1px solid #f0f2f5;
  color: var(--text-muted);
}

.price-card ul li::before {
  content: "✓ ";
  color: var(--teal-600);
  font-weight: 700;
}

/* Contact */
.contact-sub {
  text-align: center;
  color: var(--text-muted);
  margin-top: -32px;
  margin-bottom: 48px;
}

.contact-grid { grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); }
.contact-grid .card h3 { color: var(--teal-600); }
.contact-grid .card a { color: var(--teal-600); font-weight: 600; }
.contact-grid .card a:hover { text-decoration: underline; }

/* Promotions */
.promo-grid { grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); align-items: start; }

.promo-card {
  position: relative;
  display: flex;
  gap: 16px;
  align-items: flex-start;
  background: var(--white);
  border: 1px solid #e4ece8;
  border-radius: 14px;
  padding: 24px;
}

.promo-body { flex: 1; min-width: 0; }

.promo-card.featured {
  border: 2px solid var(--teal-600);
  box-shadow: 0 12px 24px rgba(20, 128, 122, 0.12);
}

.promo-img {
  flex: 0 0 96px;
  width: 96px;
  height: 96px;
  object-fit: cover;
  border-radius: 10px;
}

.promo-card h3 {
  font-size: 1.1rem;
  color: var(--teal-600);
  margin-bottom: 6px;
}

.promo-sub {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 14px;
}

.promo-card ul { text-align: left; }

.promo-card ul li {
  padding: 7px 0;
  border-bottom: 1px solid #f0f2f5;
  font-size: 0.92rem;
  color: var(--text-dark);
}

.promo-card ul li::before {
  content: "✓ ";
  color: var(--teal-600);
  font-weight: 700;
}

.promo-tag {
  display: inline-block;
  margin-left: 4px;
  background: var(--teal-100);
  color: var(--teal-800);
  font-size: 0.75rem;
  font-weight: 600;
  padding: 2px 8px;
  border-radius: 999px;
}

.promo-strike {
  color: var(--text-muted);
  text-decoration: line-through;
  font-size: 0.85rem;
}

/* Team */
.team-card {
  background: var(--white);
  border: 1px solid #e4ece8;
  border-radius: 16px;
  padding: 32px 28px;
  text-align: center;
}

.team-photo {
  width: 140px;
  height: 140px;
  border-radius: 50%;
  object-fit: cover;
  margin: 0 auto 18px;
  border: 3px solid var(--teal-100);
}

.team-card h3 { font-size: 1.1rem; margin-bottom: 4px; }

.team-role {
  color: var(--teal-600);
  font-weight: 600;
  font-size: 0.9rem;
  margin-bottom: 4px;
}

.team-license {
  color: var(--text-muted);
  font-size: 0.8rem;
}

.team-detail { text-align: left; margin-top: 18px; }

.team-detail h4 {
  font-size: 0.8rem;
  color: var(--teal-800);
  text-transform: uppercase;
  letter-spacing: 0.03em;
  margin-bottom: 8px;
}

.team-detail ul li {
  padding: 6px 0;
  border-bottom: 1px solid #f0f2f5;
  font-size: 0.88rem;
  color: var(--text-dark);
}

.team-detail ul li::before {
  content: "• ";
  color: var(--teal-600);
  font-weight: 700;
}

.team-training {
  max-height: 220px;
  overflow-y: auto;
  padding-right: 4px;
}

/* Footer */
.footer {
  background: var(--teal-900);
  color: rgba(255,255,255,0.7);
  text-align: center;
  padding: 28px 0;
  font-size: 0.9rem;
}

/* Responsive */
@media (max-width: 860px) {
  .nav-links { display: none; }
  .grid-3 { grid-template-columns: 1fr; }
  .hero-inner h1 { font-size: 2rem; }
  .price-card.featured { transform: none; }
}

@media (max-width: 480px) {
  .promo-card { flex-direction: column; }
  .promo-img { width: 100%; height: 160px; }
}