:root {
  --lime: #dfe173;
  --lime-soft: #f0f0b8;
  --lime-pale: #fbfadf;
  --forest: #294d3a;
  --forest-deep: #183629;
  --moss: #6f8a4d;
  --clay: #b66d49;
  --cream: #fffdf0;
  --paper: #f8f6df;
  --ink: #21372d;
  --muted: #5b675d;
  --border: rgba(41, 77, 58, 0.18);
  --shadow: 0 20px 50px rgba(24, 54, 41, 0.14);
  --radius: 22px;
  --max-width: 1120px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: radial-gradient(circle at top left, rgba(223, 225, 115, 0.45), transparent 34rem), linear-gradient(180deg, var(--cream), var(--paper));
  font-family: "Atkinson Hyperlegible", Arial, sans-serif;
  line-height: 1.6;
}
img { display: block; max-width: 100%; }
a { color: inherit; }
:focus-visible { outline: 3px solid var(--clay); outline-offset: 4px; }
.skip-link { position: absolute; left: 1rem; top: 0.75rem; z-index: 10; transform: translateY(-160%); border-radius: 999px; background: var(--forest-deep); color: white; padding: 0.75rem 1rem; transition: transform 160ms ease; }
.skip-link:focus { transform: translateY(0); }
.site-header { position: sticky; top: 0; z-index: 5; border-bottom: 1px solid rgba(41, 77, 58, 0.12); background: rgba(255, 253, 240, 0.92); backdrop-filter: blur(14px); }
.nav { display: flex; align-items: center; justify-content: space-between; gap: 1rem; width: min(var(--max-width), calc(100% - 2rem)); margin: 0 auto; padding: 0.85rem 0; }
.brand { display: inline-flex; align-items: center; gap: 0.7rem; color: var(--forest-deep); font-family: "Nunito", Arial, sans-serif; font-weight: 800; text-decoration: none; white-space: nowrap; }
.brand-mark {
  position: relative;
  display: grid;
  place-items: center;
  width: 2.7rem;
  height: 2.25rem;
  border-radius: 52% 48% 50% 50%;
  background: radial-gradient(circle at 50% 44%, rgba(223, 225, 115, 0.22) 0 28%, transparent 29%), var(--forest);
  color: var(--lime-soft);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  box-shadow: inset 0 0 0 2px rgba(240, 240, 184, 0.2);
}
.brand-mark::before {
  content: "";
  position: absolute;
  right: -0.43rem;
  top: 50%;
  width: 0.68rem;
  height: 0.56rem;
  border-radius: 50%;
  background: var(--forest);
  transform: translateY(-50%);
}

.brand-mark::after {
  content: "";
  position: absolute;
  left: -0.38rem;
  top: 50%;
  width: 0;
  height: 0;
  border-top: 0.25rem solid transparent;
  border-bottom: 0.25rem solid transparent;
  border-right: 0.48rem solid var(--forest);
  transform: translateY(-50%);
}

.brand-mark span {
  position: relative;
  z-index: 1;
}

.brand-mark .foot {
  position: absolute;
  width: 0.42rem;
  height: 0.32rem;
  border-radius: 50%;
  background: var(--forest);
}

.brand-mark .foot-one { left: 0.32rem; top: -0.15rem; transform: rotate(-18deg); }
.brand-mark .foot-two { right: 0.42rem; top: -0.15rem; transform: rotate(18deg); }
.brand-mark .foot-three { left: 0.35rem; bottom: -0.15rem; transform: rotate(18deg); }
.brand-mark .foot-four { right: 0.45rem; bottom: -0.15rem; transform: rotate(-18deg); }

.nav-links { display: flex; align-items: center; justify-content: flex-end; flex-wrap: wrap; gap: 0.25rem 0.55rem; font-size: 0.95rem; }
.nav-links a { border-radius: 999px; padding: 0.55rem 0.75rem; color: var(--forest); text-decoration: none; }
.nav-links a:hover { background: rgba(223, 225, 115, 0.48); }
.nav-links .nav-register { background: var(--forest); color: white; }
.section { width: min(var(--max-width), calc(100% - 2rem)); margin: 0 auto; padding: 4.5rem 0; }
.hero { display: grid; grid-template-columns: minmax(0, 1fr) minmax(300px, 0.9fr); align-items: center; gap: clamp(2rem, 5vw, 4rem); min-height: calc(100vh - 74px); padding-top: 3rem; }
.hero-content { max-width: 660px; }
.eyebrow { margin: 0 0 0.6rem; color: var(--moss); font-family: "Nunito", Arial, sans-serif; font-size: 0.83rem; font-weight: 800; letter-spacing: 0.08em; text-transform: uppercase; }
h1, h2, h3 { margin: 0; color: var(--forest-deep); font-family: "Nunito", Arial, sans-serif; line-height: 1.08; }
h1 { max-width: 10ch; font-size: clamp(3.2rem, 9vw, 6.75rem); }
h2 { max-width: 13ch; font-size: clamp(2.1rem, 5vw, 4rem); }
h3 { font-size: clamp(1.22rem, 2vw, 1.55rem); }
p { margin: 0; }
.hero-subtitle { margin-top: 1rem; color: var(--forest); font-family: "Nunito", Arial, sans-serif; font-size: clamp(1.35rem, 3vw, 2rem); font-weight: 700; line-height: 1.2; }
.hero-copy { max-width: 62ch; margin-top: 1.25rem; color: var(--muted); font-size: 1.12rem; }
.button-row { display: flex; flex-wrap: wrap; gap: 0.9rem; margin-top: 1.7rem; }
.button { display: inline-flex; align-items: center; justify-content: center; min-height: 3rem; border: 2px solid transparent; border-radius: 999px; padding: 0.78rem 1.15rem; font-family: "Nunito", Arial, sans-serif; font-weight: 800; line-height: 1.15; text-align: center; text-decoration: none; transition: transform 160ms ease, box-shadow 160ms ease, background 160ms ease; }
.button:hover { transform: translateY(-2px); box-shadow: 0 12px 25px rgba(24, 54, 41, 0.16); }
.button.primary { background: var(--forest); color: white; }
.button.secondary { border-color: var(--forest); background: rgba(255, 253, 240, 0.68); color: var(--forest-deep); }
.hero-visual { position: relative; margin: 0; border: 10px solid var(--lime); border-radius: 30px; background: var(--lime); box-shadow: var(--shadow); overflow: hidden; }
.hero-visual::after { content: ""; position: absolute; right: -18px; bottom: -18px; width: 120px; height: 120px; border: 3px solid rgba(41, 77, 58, 0.24); border-radius: 50%; }
.turtle-crop {
  aspect-ratio: 16 / 10;
  overflow: hidden;
  border-radius: 20px;
  background: var(--forest-deep);
}
.turtle-crop img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center center;
}
.section-heading { display: grid; gap: 0.75rem; margin-bottom: 2rem; }
.section-heading p:not(.eyebrow) { max-width: 66ch; color: var(--muted); font-size: 1.08rem; }
.section-heading.compact { margin-bottom: 1.4rem; }
.split { display: grid; grid-template-columns: minmax(280px, 0.85fr) minmax(0, 1.15fr); gap: 1.5rem; align-items: start; }
.split.center { align-items: center; }
.card, .about-panel { border: 1px solid var(--border); border-radius: var(--radius); background: rgba(255, 253, 240, 0.82); box-shadow: 0 12px 34px rgba(24, 54, 41, 0.08); }
.feature-card { display: grid; gap: 1.3rem; padding: clamp(1.3rem, 3vw, 2rem); background: var(--forest); color: white; }
.feature-card h3 { color: var(--lime-soft); }
.feature-card .button.primary { justify-self: start; background: var(--lime); color: var(--forest-deep); }
.detail-list { display: grid; gap: 0.65rem; margin: 0; padding: 0; list-style: none; }
.detail-list li { position: relative; padding-left: 1.4rem; }
.detail-list li::before { content: ""; position: absolute; left: 0; top: 0.65em; width: 0.48rem; height: 0.48rem; border-radius: 50%; background: var(--lime); }
.prose { display: grid; gap: 1rem; color: var(--muted); font-size: 1.08rem; }
.pill-grid { display: flex; flex-wrap: wrap; gap: 0.75rem; }
.pill-grid span { border: 1px solid var(--border); border-radius: 999px; background: rgba(223, 225, 115, 0.32); padding: 0.78rem 1rem; color: var(--forest-deep); font-weight: 700; }
.note { margin-top: 1.4rem; border-left: 5px solid var(--clay); border-radius: 0 16px 16px 0; background: rgba(255, 253, 240, 0.72); padding: 1rem 1.2rem; color: var(--forest); font-family: "Nunito", Arial, sans-serif; font-size: 1.25rem; font-weight: 800; }
.week-grid, .resource-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 1rem; }
.week-card, .resource-card { display: grid; align-content: start; gap: 0.8rem; padding: 1.35rem; }
.week-number { width: fit-content; border-radius: 999px; background: var(--lime); padding: 0.28rem 0.7rem; color: var(--forest-deep); font-family: "Nunito", Arial, sans-serif; font-size: 0.88rem; font-weight: 800; }
.week-card p:not(.week-number), .resource-card p { color: var(--muted); }
.about-section { width: 100%; max-width: none; padding: 4.5rem max(1rem, calc((100% - var(--max-width)) / 2)); background: linear-gradient(135deg, rgba(41, 77, 58, 0.96), rgba(24, 54, 41, 0.96)); }
.about-panel { padding: clamp(1.4rem, 4vw, 3rem); background: var(--lime-pale); }
.about-panel h2 { max-width: none; }
.resource-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.resource-card { min-height: 190px; background: linear-gradient(180deg, rgba(255, 253, 240, 0.9), rgba(240, 240, 184, 0.5)); }
.faq-list { display: grid; gap: 0.85rem; }
details { border: 1px solid var(--border); border-radius: 18px; background: rgba(255, 253, 240, 0.82); padding: 0.3rem 1rem; }
summary { cursor: pointer; padding: 0.85rem 0; color: var(--forest-deep); font-family: "Nunito", Arial, sans-serif; font-weight: 800; }
details p { padding: 0 0 1rem; color: var(--muted); }
.site-footer { display: grid; grid-template-columns: 1fr 1.2fr auto; gap: 1.5rem; align-items: start; margin-top: 2rem; padding: 2rem max(1rem, calc((100% - var(--max-width)) / 2)); background: var(--forest-deep); color: rgba(255, 253, 240, 0.88); }
.site-footer h2 { max-width: none; color: var(--lime); font-size: 1.55rem; }
.site-footer p { margin-top: 0.2rem; }
.footer-links { display: grid; gap: 0.45rem; }
.footer-links a { color: var(--lime-soft); font-weight: 700; }
@media (max-width: 900px) {
  .nav { align-items: flex-start; flex-direction: column; }
  .nav-links { justify-content: flex-start; }
  .hero, .split, .site-footer { grid-template-columns: 1fr; }
  .hero { min-height: auto; }
  .hero-visual { max-width: 560px; }
  .week-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 640px) {
  .section { width: min(100% - 1.2rem, var(--max-width)); padding: 3.3rem 0; }
  .nav { width: min(100% - 1.2rem, var(--max-width)); }
  .nav-links { width: 100%; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0.4rem; }
  .nav-links a { border: 1px solid rgba(41, 77, 58, 0.12); background: rgba(255, 253, 240, 0.72); text-align: center; }
  .brand { white-space: normal; }
  h1 { font-size: clamp(3rem, 18vw, 4.7rem); }
  h2 { max-width: 12ch; }
  .button { width: 100%; }
  .hero-visual { border-width: 7px; border-radius: 24px; }
  .week-grid, .resource-grid { grid-template-columns: 1fr; }
  .pill-grid span { width: 100%; border-radius: 18px; }
  .about-section { padding-top: 3.3rem; padding-bottom: 3.3rem; }
}