:root{
  --green:#1f5a45;
  --green-2:#2b6a54;
  --orange:#f59a44;
  --peach:#fff1e2;
  --cream:#faf7f0;
  --sage:#a9b99f;
  --ink:#163f32;
  --muted:#5e746c;
  --white:#ffffff;
  --border:#eadfce;
  --shadow:0 12px 30px rgba(22,63,50,.08);
  --radius:22px;
  --max:1180px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color:var(--ink);
  background:var(--white);
  line-height:1.55;
}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.container{width:min(var(--max), calc(100% - 40px));margin:0 auto}
.site-header{
  position:sticky;top:0;z-index:20;
  background:rgba(255,255,255,.95);
  border-bottom:1px solid rgba(31,90,69,.08);
  backdrop-filter:blur(12px);
}
.nav{
  min-height:76px;display:flex;align-items:center;justify-content:space-between;gap:24px
}
.brand{display:flex;align-items:center;gap:12px;font-weight:800;color:var(--green);font-size:1.15rem}
.brand-mark{width:34px;height:34px}
.nav-links{display:flex;align-items:center;gap:22px;font-weight:600;color:var(--green)}
.nav-links a:hover{color:var(--orange)}
.mobile-toggle{display:none;border:0;background:none;font-size:1.4rem;color:var(--green)}
.hero{
  background:var(--cream);padding:92px 0 88px;
}
.hero-grid{display:grid;grid-template-columns:1.1fr .9fr;align-items:center;gap:56px}
.eyebrow{font-weight:700;color:var(--orange);letter-spacing:.08em;text-transform:uppercase;font-size:.82rem}
h1,h2,h3{line-height:1.1;color:var(--green);margin:0}
h1{font-size:clamp(2.7rem,5vw,5rem);font-weight:800;letter-spacing:-.04em}
h2{font-size:clamp(2rem,3.4vw,3.4rem);font-weight:800;letter-spacing:-.03em}
h3{font-size:1.35rem}
.lead{font-size:clamp(1.1rem,2vw,1.35rem);max-width:720px;color:var(--green);margin:22px 0 0}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-top:30px}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:50px;padding:0 22px;border-radius:12px;font-weight:700;
  border:1px solid transparent;transition:.2s ease;
}
.btn-primary{background:var(--green);color:white}
.btn-primary:hover{transform:translateY(-2px);background:var(--green-2)}
.btn-accent{background:var(--orange);color:white}
.btn-outline{border-color:var(--green);color:var(--green);background:transparent}
.hero-art{
  min-height:360px;display:flex;align-items:center;justify-content:center;
  background:var(--peach);border-radius:32px;padding:28px;box-shadow:var(--shadow)
}
.section{padding:86px 0}
.section.peach{background:var(--peach)}
.section.cream{background:var(--cream)}
.section-heading{text-align:center;max-width:850px;margin:0 auto 44px}
.section-heading p{font-size:1.15rem;color:var(--green);margin:16px 0 0}
.grid{display:grid;gap:28px}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-2{grid-template-columns:repeat(2,1fr)}
.grid-4{grid-template-columns:repeat(4,1fr)}
.card{
  background:var(--peach);border-radius:var(--radius);padding:34px;
  border:1px solid rgba(245,154,68,.12);box-shadow:0 6px 18px rgba(22,63,50,.04)
}
.card.white{background:white}
.card h3{margin:12px 0 10px}
.card p{margin:0;color:var(--green)}
.icon{
  width:58px;height:58px;border-radius:18px;display:grid;place-items:center;
  color:var(--orange);font-size:1.7rem
}
.age-card{text-align:center;display:flex;flex-direction:column;align-items:center;min-height:300px}
.age-card h3{font-size:1.55rem}
.age-card .desc{font-size:1.05rem;min-height:52px}
.age-card .btn{margin-top:auto}
.hero-age{
  background:var(--peach);padding:52px 0 76px
}
.back-link{font-weight:700;color:var(--green);display:inline-block;margin-bottom:38px}
.age-hero-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:56px;align-items:center}
.age-hero-grid .subhead{font-size:clamp(1.8rem,3vw,3rem);margin-top:28px;font-weight:500}
.age-hero-grid .lead{font-size:1.25rem;max-width:680px}
.info-card{text-align:center;min-height:260px}
.stage-tabs{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.stage-card{background:white;border-radius:18px;padding:24px;text-align:center;border:1px solid var(--border)}
.stage-card strong{display:block;color:var(--green);font-size:1.2rem;margin-bottom:6px}
.activity-card{background:white;border-radius:18px;padding:24px;border:1px solid var(--border)}
.activity-card .tag{display:inline-block;background:var(--peach);color:var(--green);font-size:.8rem;font-weight:700;padding:5px 9px;border-radius:999px;margin-bottom:12px}
.notice{background:#f3f7f2;border-left:4px solid var(--sage);padding:20px 22px;border-radius:14px;color:var(--green)}
.footer{background:var(--green);color:white;padding:52px 0 28px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:30px}
.footer h3{color:white}
.footer a{color:white;opacity:.9}
.footer small{opacity:.75}
.footer-bottom{margin-top:32px;padding-top:22px;border-top:1px solid rgba(255,255,255,.16)}
.learning-list{display:grid;gap:14px;margin-top:20px}
.learning-item{background:white;border:1px solid var(--border);border-radius:16px;padding:20px}
.page-hero{padding:72px 0;background:var(--cream)}
.page-hero p{max-width:780px;font-size:1.2rem;color:var(--green)}
.kicker{color:var(--orange);font-weight:800;text-transform:uppercase;letter-spacing:.08em;font-size:.82rem;margin-bottom:12px}
.disclaimer{font-size:.95rem;color:var(--muted)}
@media (max-width: 900px){
  .hero-grid,.age-hero-grid,.footer-grid{grid-template-columns:1fr}
  .grid-3,.grid-4{grid-template-columns:repeat(2,1fr)}
  .stage-tabs{grid-template-columns:repeat(2,1fr)}
  .nav-links{display:none}
  .mobile-toggle{display:block}
}
@media (max-width: 620px){
  .container{width:min(100% - 28px,var(--max))}
  .hero,.section{padding:58px 0}
  .grid-3,.grid-2,.grid-4,.stage-tabs{grid-template-columns:1fr}
  h1{font-size:2.8rem}
  .hero-art{min-height:260px}
  .age-card{min-height:270px}
}

/* Navigation state, forms and flash — added when the prototype became a Rails app. */
.nav-links a.is-current{color:var(--orange)}
.nav-links.is-open{
  display:flex;position:absolute;top:76px;right:20px;flex-direction:column;
  background:white;padding:18px;border-radius:14px;box-shadow:0 14px 30px rgba(0,0,0,.08)
}
.site-header .container{position:relative}
.stage-details{margin-top:42px}
.next-age{margin-top:36px;text-align:center}
.flash{
  width:min(var(--max),calc(100% - 40px));margin:22px auto 0;padding:16px 20px;
  border-radius:14px;background:#f3f7f2;border-left:4px solid var(--sage);color:var(--green);font-weight:600
}
.flash-alert{background:#fdeeee;border-left-color:#d05b5b}
.form-layout{display:grid;grid-template-columns:1.4fr .8fr;gap:28px;align-items:start}
.form{display:grid;gap:20px}
.field{display:grid;gap:8px}
.field label{font-weight:700;color:var(--green)}
.field input,.field textarea{
  font:inherit;color:var(--ink);background:white;padding:13px 15px;
  border:1px solid var(--border);border-radius:12px;width:100%
}
.field input:focus,.field textarea:focus{outline:2px solid var(--orange);outline-offset:1px;border-color:transparent}
.form input[type="submit"]{justify-self:start;cursor:pointer}
.notice-error{background:#fdeeee;border-left-color:#d05b5b}
.notice-error ul{margin:10px 0 0;padding-left:20px}
:focus-visible{outline:2px solid var(--orange);outline-offset:3px}
@media (max-width: 900px){
  .form-layout{grid-template-columns:1fr}
}