:root {
  --navy: #13213c;
  --ink: #1f2a40;
  --muted: #5b6478;
  --sun: #ffb703;
  --sun-soft: #fff1c9;
  --teal: #219ebc;
  --teal-soft: #e3f4f8;
  --coral: #fb8500;
  --bg: #fffaf0;
  --card: #ffffff;
  --line: #ece4d3;
  --radius: 18px;
  --shadow: 0 6px 24px rgba(19, 33, 60, 0.08);
  --head: "Fredoka", "Trebuchet MS", system-ui, sans-serif;
  --body: "Nunito", system-ui, -apple-system, "Segoe UI", sans-serif;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--bg); color: var(--ink); font: 18px/1.6 var(--body); }
img, svg { max-width: 100%; }
a { color: var(--teal); }
h1, h2, h3, h4 { font-family: var(--head); color: var(--navy); line-height: 1.15; margin: 0 0 .5em; font-weight: 600; }
h1 { font-size: clamp(2.1rem, 5vw, 3.4rem); }
h2 { font-size: clamp(1.6rem, 3.4vw, 2.3rem); }
h3 { font-size: 1.3rem; }
p { margin: 0 0 1em; }
.wrap { max-width: 1080px; margin: 0 auto; padding: 0 20px; }
.narrow { max-width: 760px; }
.section { padding: 72px 0; }
.section.alt { background: var(--card); border-block: 1px solid var(--line); }
.center { text-align: center; }
.muted { color: var(--muted); }
.small { font-size: .9rem; }
.eyebrow { display: inline-block; font: 700 .85rem/1 var(--body); letter-spacing: .08em; text-transform: uppercase; color: var(--coral); margin-bottom: 14px; }

/* header / footer */
.site-header { position: sticky; top: 0; z-index: 10; background: rgba(255, 250, 240, .92); backdrop-filter: blur(8px); border-bottom: 1px solid var(--line); }
.site-header .wrap { display: flex; align-items: center; justify-content: space-between; height: 68px; gap: 16px; }
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; color: var(--navy); font: 600 1.45rem var(--head); }
.brand img { width: 40px; height: 40px; }
.nav { display: flex; gap: 22px; align-items: center; }
.nav a { color: var(--ink); text-decoration: none; font-weight: 700; font-size: .98rem; }
.nav a:hover { color: var(--teal); }
@media (max-width: 720px) { .nav a:not(.btn) { display: none; } }
.site-footer { background: var(--navy); color: #c9d2e3; padding: 40px 0; font-size: .95rem; }
.site-footer a { color: #fff; }
.site-footer .wrap { display: flex; flex-wrap: wrap; gap: 16px 32px; justify-content: space-between; }
.site-footer nav { display: flex; gap: 20px; flex-wrap: wrap; }

/* buttons */
.btn { display: inline-block; border: 0; cursor: pointer; text-decoration: none; font: 700 1.05rem var(--body); padding: 14px 26px; border-radius: 14px; background: var(--sun); color: var(--navy); box-shadow: 0 3px 0 #d99a00; transition: transform .08s; }
.btn:hover { transform: translateY(-1px); }
.btn:active { transform: translateY(2px); box-shadow: 0 1px 0 #d99a00; }
.btn.secondary { background: var(--teal); color: #fff; box-shadow: 0 3px 0 #17768d; }
.btn.small { padding: 9px 16px; font-size: .95rem; }
.btn.big { padding: 18px 34px; font-size: 1.2rem; }

/* hero */
.hero { padding: 64px 0 56px; }
.hero .wrap { display: grid; grid-template-columns: 1.15fr .85fr; gap: 48px; align-items: center; }
.hero .wrap > *, .grid > * { min-width: 0; }
@media (max-width: 880px) { .hero .wrap { grid-template-columns: 1fr; } .hero-art { display: none; } .hero { padding-top: 40px; } }
.hero .lead { font-size: 1.25rem; color: var(--muted); max-width: 34em; }
.hero-art { background: var(--teal-soft); border-radius: 32px; padding: 32px; display: grid; place-items: center; }
.hero-art img { width: 75%; }

/* signup card */
.signup { background: var(--card); border: 2px solid var(--navy); border-radius: var(--radius); padding: 26px; box-shadow: 6px 6px 0 var(--sun); }
.signup h3 { margin-bottom: .3em; }
.signup form { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 14px; }
.signup input[type=email], .signup input[type=text], .field input { flex: 1 1 200px; min-width: 0; padding: 14px 16px; border: 2px solid var(--line); border-radius: 12px; font: inherit; background: #fff; }
.signup input:focus, .field input:focus { outline: none; border-color: var(--teal); }
.signup .fine { flex-basis: 100%; font-size: .85rem; color: var(--muted); margin: 4px 0 0; }

/* cards / grids */
.grid { display: grid; gap: 22px; }
.grid.three { grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); }
.grid.two { grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); }
.card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 26px; box-shadow: var(--shadow); }
.card .icon { font-size: 2rem; margin-bottom: 8px; }
.lesson-list { list-style: none; padding: 0; margin: 0; display: grid; gap: 14px; }
.lesson-list li { display: flex; gap: 18px; align-items: flex-start; background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 20px 22px; }
.lesson-list .num { flex: none; width: 44px; height: 44px; border-radius: 50%; background: var(--sun); color: var(--navy); display: grid; place-items: center; font: 600 1.3rem var(--head); }
.lesson-list h3 { margin: 4px 0 4px; }
.lesson-list p { margin: 0; color: var(--muted); }
.lesson-list a { text-decoration: none; color: inherit; }
.lesson-list li:has(a):hover { border-color: var(--teal); }

.price-card { max-width: 480px; margin: 0 auto; text-align: center; background: var(--card); border: 2px solid var(--navy); border-radius: 24px; padding: 34px; box-shadow: 8px 8px 0 var(--teal); }
.price { font: 600 3.4rem/1 var(--head); color: var(--navy); margin: 8px 0 4px; }
.checks { list-style: none; padding: 0; margin: 20px 0 26px; text-align: left; }
.checks li { padding-left: 32px; position: relative; margin-bottom: 10px; }
.checks li::before { content: "✓"; position: absolute; left: 0; top: 0; width: 22px; height: 22px; border-radius: 50%; background: var(--teal); color: #fff; font-size: .8rem; display: grid; place-items: center; margin-top: 4px; font-weight: 800; }

.faq details { background: var(--card); border: 1px solid var(--line); border-radius: 14px; padding: 16px 20px; margin-bottom: 12px; }
.faq summary { cursor: pointer; font-weight: 800; color: var(--navy); }
.faq details p { margin: 12px 0 0; }

.notice { background: var(--teal-soft); border-left: 5px solid var(--teal); padding: 14px 18px; border-radius: 10px; }
.callout { background: var(--sun-soft); border-radius: var(--radius); padding: 22px 26px; }

/* plain pages: legal, thanks, locked */
.page { padding: 56px 0 80px; }
.page h2 { margin-top: 1.6em; font-size: 1.5rem; }
.page li { margin-bottom: .4em; }
.field { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 12px; }

/* ---------- course lessons ---------- */
.lesson-head { background: var(--teal-soft); padding: 40px 0 32px; border-bottom: 1px solid var(--line); }
.lesson-meta { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 10px; }
.tag { background: #fff; border: 1px solid var(--line); border-radius: 999px; padding: 4px 12px; font-size: .88rem; font-weight: 700; color: var(--muted); }
.lesson-body { padding: 40px 0 64px; }
.lesson-body h2 { margin-top: 1.8em; font-size: 1.6rem; }
.lesson-body h2:first-child { margin-top: 0; }
.box { border-radius: var(--radius); padding: 22px 26px; margin: 22px 0; }
.box h3 { margin-top: 0; }
.box.parent { background: #f1eefb; border-left: 6px solid #7b61ff; }
.box.kid { background: var(--sun-soft); border-left: 6px solid var(--sun); }
.box.activity { background: var(--teal-soft); border-left: 6px solid var(--teal); }
.box.talk { background: #fdecef; border-left: 6px solid #e05a7a; }
.box ol, .box ul { padding-left: 1.3em; margin: .4em 0 0; }
.box li { margin-bottom: .45em; }
.lesson-nav { display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; border-top: 1px solid var(--line); padding-top: 24px; margin-top: 40px; }
.print-btn { float: right; }
.worksheet { border: 2px dashed var(--navy); border-radius: var(--radius); padding: 26px; margin: 28px 0; background: #fff; page-break-before: always; }
.worksheet h3 { font-size: 1.5rem; }
.worksheet .line { border-bottom: 2px solid #cfd6e4; height: 2.2em; }
.worksheet table { width: 100%; border-collapse: collapse; margin-top: 10px; }
.worksheet td, .worksheet th { border: 2px solid #cfd6e4; padding: 10px; text-align: left; vertical-align: top; }
.worksheet th { background: var(--bg); font-family: var(--head); font-weight: 600; }
.cards-cut { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 10px; }
.cards-cut div { border: 2px dashed #b9c2d4; border-radius: 12px; padding: 16px 10px; text-align: center; font-weight: 700; min-height: 80px; display: grid; place-items: center; }

@media print {
  body { background: #fff; font-size: 13pt; }
  .site-header, .site-footer, .lesson-nav, .print-btn, .no-print { display: none !important; }
  .box { break-inside: avoid; }
  a { color: inherit; text-decoration: none; }
}