:root {
  --navy: #0b1f33;
  --navy-2: #12293f;
  --teal: #14b8a6;
  --teal-dark: #0e8f81;
  --ink: #1c2b3a;
  --muted: #5b6b7d;
  --bg: #f6f9fb;
  --card: #ffffff;
  --line: #e2e9f0;
  --accent-soft: #e6f7f4;
  --radius: 14px;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: "Inter", "Segoe UI", system-ui, -apple-system, sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.65;
}
a { color: var(--teal-dark); }
.wrap { max-width: 1080px; margin: 0 auto; padding: 0 24px; }

/* header */
.site-header {
  background: var(--navy);
  color: #fff;
  position: sticky;
  top: 0;
  z-index: 50;
}
.site-header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 14px;
  padding-bottom: 14px;
}
.brand { display: flex; align-items: center; gap: 12px; color: #fff; text-decoration: none; }
.brand-mark {
  width: 40px; height: 40px; border-radius: 10px;
  background: linear-gradient(135deg, var(--teal), #0d6e64);
  display: flex; align-items: center; justify-content: center;
  font-weight: 800; font-size: 20px; color: #fff;
}
.brand-name { font-weight: 700; font-size: 18px; line-height: 1.2; }
.brand-tag { font-size: 12px; color: #9fb3c8; }
.nav a {
  color: #d7e3ef; text-decoration: none; margin-left: 22px; font-size: 15px;
}
.nav a:hover { color: #fff; }
.nav a.cta {
  background: var(--teal); color: #04211d; font-weight: 700;
  padding: 9px 18px; border-radius: 999px;
}
.nav a.cta:hover { background: #2dd4bf; color: #04211d; }

/* hero */
.hero {
  background: linear-gradient(180deg, var(--navy) 0%, var(--navy-2) 100%);
  color: #fff;
  padding: 72px 0 64px;
}
.hero h1 { font-size: 42px; line-height: 1.15; margin: 0 0 16px; max-width: 720px; }
.hero h1 .hl { color: #2dd4bf; }
.hero p.lede { font-size: 19px; color: #c3d4e5; max-width: 680px; margin: 0 0 28px; }
.btn {
  display: inline-block; background: var(--teal); color: #04211d;
  font-weight: 700; padding: 13px 26px; border-radius: 999px;
  text-decoration: none; border: 0; cursor: pointer; font-size: 16px;
}
.btn:hover { background: #2dd4bf; }
.btn.ghost {
  background: transparent; color: #fff; border: 2px solid #3b5875; margin-left: 12px;
}
.btn.ghost:hover { border-color: var(--teal); color: #fff; }
.hero-note { margin-top: 18px; font-size: 14px; color: #8fa5bc; }

/* sections */
.section { padding: 56px 0; }
.section h2 { font-size: 30px; margin: 0 0 10px; color: var(--navy); }
.section .sub { color: var(--muted); max-width: 700px; margin: 0 0 30px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
.card {
  background: var(--card); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 26px;
}
.card h3 { margin: 0 0 8px; font-size: 19px; color: var(--navy); }
.card p { margin: 0; color: var(--muted); font-size: 15px; }
.card .icon { font-size: 28px; margin-bottom: 10px; }

/* program band */
.band {
  background: var(--navy); color: #fff; border-radius: 20px;
  padding: 44px; display: grid; grid-template-columns: 1.4fr 1fr; gap: 32px;
  align-items: center; margin: 8px 0;
}
.band h2 { color: #fff; margin: 0 0 12px; font-size: 28px; }
.band p { color: #c3d4e5; margin: 0 0 20px; }
.band ul { list-style: none; padding: 0; margin: 0 0 24px; }
.band ul li { padding: 6px 0 6px 28px; position: relative; color: #d7e3ef; }
.band ul li::before { content: "✓"; position: absolute; left: 0; color: #2dd4bf; font-weight: 800; }
.band-visual {
  background: var(--accent-soft); color: var(--navy); border-radius: var(--radius);
  padding: 28px; text-align: center;
}
.band-visual .big { font-size: 44px; }
.band-visual strong { display: block; font-size: 20px; margin: 8px 0 4px; }
.band-visual span { color: var(--muted); font-size: 14px; }

/* faq */
.faq details {
  background: var(--card); border: 1px solid var(--line);
  border-radius: 12px; padding: 18px 22px; margin-bottom: 12px;
}
.faq summary { font-weight: 700; color: var(--navy); cursor: pointer; font-size: 17px; }
.faq details p { color: var(--muted); margin: 10px 0 0; }

/* form */
.book-form {
  background: var(--card); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 32px; max-width: 640px;
}
.book-form label { display: block; font-weight: 600; margin: 14px 0 6px; color: var(--navy); }
.book-form input, .book-form select, .book-form textarea {
  width: 100%; padding: 12px 14px; border: 1px solid var(--line);
  border-radius: 10px; font-size: 15px; font-family: inherit;
}
.book-form .row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.confirmation {
  display: none; background: var(--accent-soft); border: 2px solid var(--teal);
  border-radius: var(--radius); padding: 26px; margin-top: 20px;
}
.confirmation.show { display: block; }
.confirmation .code {
  font-size: 26px; font-weight: 800; color: var(--teal-dark);
  letter-spacing: 1px; margin: 8px 0;
}

/* steps */
.steps { counter-reset: step; display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.step {
  background: var(--card); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 26px; position: relative;
}
.step::before {
  counter-increment: step; content: counter(step);
  width: 36px; height: 36px; border-radius: 50%;
  background: var(--navy); color: #fff; font-weight: 800;
  display: flex; align-items: center; justify-content: center; margin-bottom: 12px;
}
.step h3 { margin: 0 0 8px; color: var(--navy); }
.step p { margin: 0; color: var(--muted); font-size: 15px; }

/* footer */
.site-footer { background: var(--navy); color: #8fa5bc; padding: 40px 0; font-size: 14px; }
.site-footer .wrap { display: flex; justify-content: space-between; gap: 24px; flex-wrap: wrap; }
.site-footer strong { color: #fff; }
.site-footer a { color: #c3d4e5; }

.badge {
  display: inline-block; background: var(--accent-soft); color: var(--teal-dark);
  font-weight: 700; font-size: 13px; padding: 6px 14px; border-radius: 999px;
  text-transform: uppercase; letter-spacing: 0.6px; margin-bottom: 14px;
}
.checklist { list-style: none; padding: 0; }
.checklist li { padding: 8px 0 8px 30px; position: relative; }
.checklist li::before { content: "✓"; position: absolute; left: 0; color: var(--teal-dark); font-weight: 800; }

@media (max-width: 820px) {
  .grid-3, .grid-2, .steps { grid-template-columns: 1fr; }
  .band { grid-template-columns: 1fr; padding: 30px; }
  .hero h1 { font-size: 32px; }
  .nav a:not(.cta) { display: none; }
  .book-form .row { grid-template-columns: 1fr; }
}