* { box-sizing: border-box; }

html {
  scroll-padding-top: 1.5rem;
  color-scheme: light;
}

body {
  margin: 0;
  background: var(--background);
  color: var(--text-primary);
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 1rem;
  line-height: 1.65;
  overflow-wrap: anywhere;
}

a { color: var(--primary-strong); text-underline-offset: 0.2em; }
a:hover { text-decoration-thickness: 0.15em; }
a:focus-visible { outline: 3px solid var(--primary-strong); outline-offset: 5px; }

.container { width: min(100% - 2.5rem, 70rem); margin-inline: auto; }
.review-notice { padding-block: 0.85rem; background: var(--warning-bg); color: var(--on-warning-bg); font-size: 0.9rem; }
.skip-link { position: absolute; top: 0.5rem; left: 0.5rem; padding: 0.75rem 1rem; background: var(--surface); z-index: 2; transform: translateY(-200%); }
.skip-link:focus { transform: translateY(0); }
.site-header { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 1rem 2rem; padding-block: 1.4rem; }
.brand { display: inline-flex; align-items: center; }
.brand img { display: block; width: min(14rem, 65vw); height: auto; }
nav { display: flex; flex-wrap: wrap; gap: 0.5rem 1.5rem; }
.site-header nav a, .site-footer nav a { display: inline-flex; align-items: center; min-height: 2.75rem; }
.site-header nav a { font-weight: 650; }

h1, h2, h3 { line-height: 1.2; }
h1 { margin: 0.75rem 0 1.25rem; font-size: clamp(2.4rem, 5vw, 4rem); letter-spacing: -0.035em; }
h2 { margin: 0.5rem 0 1rem; font-size: clamp(1.65rem, 2.6vw, 2.2rem); letter-spacing: -0.02em; }
h3 { margin: 0.7rem 0; font-size: 1.25rem; }
p { margin: 0.75rem 0; }
.eyebrow { color: var(--text-secondary); font-size: 0.8rem; font-weight: 750; letter-spacing: 0.1em; text-transform: uppercase; }
.lead { font-size: clamp(1.15rem, 2vw, 1.4rem); line-height: 1.55; }
.hero { display: grid; grid-template-columns: minmax(0, 1.3fr) minmax(0, 1fr); align-items: center; gap: 3rem; padding-block: 3.5rem 4.5rem; }
.hero > div, .family-panel > div, .feature-card, .learning-steps li > div { min-width: 0; }
.hero > div > p:not(.eyebrow) { max-width: 42rem; }
.actions { display: flex; flex-wrap: wrap; align-items: center; gap: 1rem 1.5rem; margin-top: 1.75rem; }
.button { display: inline-flex; justify-content: center; align-items: center; min-height: 2.75rem; padding: 0.8em 1.25em; border-radius: 999px; background: var(--primary-strong); color: var(--text-on-primary-strong); font-weight: 700; text-decoration: none; }
.text-link { display: inline-flex; align-items: center; min-height: 2.75rem; font-weight: 650; }
.learning-illustration { padding: clamp(1.25rem, 3vw, 2rem); background: var(--primary-surface); border-radius: 1.75rem; border: 1px solid var(--outline-variant); }
.learning-steps { display: grid; gap: 1rem; margin: 1rem 0 0; padding: 0; list-style: none; }
.learning-steps li { display: flex; flex-wrap: wrap; align-items: flex-start; gap: 1rem; padding: 1rem; background: var(--surface); border: 1px solid var(--outline-variant); border-radius: 1rem; }
.learning-steps li > div { flex: 1 1 8rem; }
.learning-steps h2 { margin: 0; font-size: 1.2rem; }
.learning-steps p { margin: 0.3rem 0 0; color: var(--text-secondary); }
.step-number { display: grid; place-items: center; flex: 0 0 2.5em; min-height: 2.5em; border-radius: 999px; background: var(--secondary-surface); font-weight: 750; }
.section { padding-bottom: 3.5rem; }
.feature-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1.25rem; margin-top: 1.5rem; padding: 1.25rem; background: var(--surface-container); border-radius: 1.5rem; }
.feature-card { padding: 1.5rem; background: var(--surface); border: 1px solid var(--outline-variant); border-radius: 1rem; }
.feature-card p { color: var(--text-secondary); }
.feature-label { color: var(--primary-strong); font-size: 0.9rem; font-weight: 700; }
.family-panel { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.2fr); gap: 2rem; padding: clamp(1.5rem, 3vw, 2.5rem); background: var(--primary-surface); border: 1px solid var(--outline-variant); border-radius: 1.5rem; }
.family-panel h2 { margin-bottom: 0; }
.site-footer { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: flex-start; gap: 0.5rem 2rem; border-top: 1px solid var(--outline-variant); padding-block: 1.5rem 2rem; color: var(--text-secondary); font-size: 0.9rem; }

.policy { max-width: 52rem; padding-block: 2rem 3rem; }
.policy h1 { font-size: clamp(2.3rem, 4vw, 3.25rem); }
.policy-heading { margin-bottom: 2rem; }
.policy-contents { display: block; padding: 1.5rem; background: var(--surface); border: 1px solid var(--outline-variant); border-radius: 1rem; box-shadow: 0 4px 16px var(--shadow); }
.policy-contents h2 { font-size: 1.25rem; }
.policy-contents ol { margin: 0; padding-left: 1.5rem; }
.policy-contents li { padding-block: 0.3rem; }
.policy section { margin-top: 2.75rem; }
.policy section > h2 { font-size: clamp(1.4rem, 3vw, 1.8rem); }
.data-list { display: grid; gap: 1rem; margin-block: 1.5rem; padding: 1rem; background: var(--surface-container); border-radius: 1rem; }
.data-list article { padding: 1rem 1.25rem; background: var(--surface); border: 1px solid var(--outline-variant); border-radius: 0.75rem; }
.unconfirmed { color: var(--on-warning-bg); background: var(--warning-bg); padding: 0.15em 0.3em; border-radius: 0.25em; }
p.unconfirmed { padding: 0.75rem; border-left: 3px solid var(--on-warning-bg); }
.policy table { width: 100%; border-collapse: collapse; margin-block: 1rem; background: var(--surface); border: 1px solid var(--outline-variant); }
.policy th, .policy td { padding: 0.6rem 0.8rem; text-align: left; vertical-align: top; border-bottom: 1px solid var(--outline-variant); }
.policy th { background: var(--surface-container); }

@media (max-width: 48rem) {
  .hero, .family-panel { grid-template-columns: minmax(0, 1fr); gap: 2rem; }
  .hero { padding-block: 2rem 3rem; }
  .learning-illustration { max-width: 35rem; width: 100%; }
}

@media (max-width: 36rem) {
  .container { width: calc(100% - 2rem); }
  .feature-grid { grid-template-columns: minmax(0, 1fr); padding: 0.75rem; }
  .feature-card { padding: 1.25rem; }
  .site-header { align-items: flex-start; }
}

@media print {
  .site-header, .site-footer, .skip-link { display: none; }
  body { background: var(--surface); font-size: 11pt; }
  .container { width: 100%; }
  .policy { max-width: none; }
  .policy section { break-inside: auto; }
  .review-notice { border: 2px solid var(--on-warning-bg); }
}