:root {
  color-scheme: light dark;
  --brand-primary: #5a3d28;
  --brand-accent: #9a5729;
  --brand-soft: #ead8c4;
  --surface: #f5f1e9;
  --surface-raised: #fffdf8;
  --surface-strong: #1d211f;
  --text: #202522;
  --text-muted: #5d665f;
  --border: #c9c8bc;
  --focus: #7b4be2;
  --success: #146b4a;
  --warning: #8a5700;
  --error: #a52a2a;
  --info: #275d70;
  --max-width: 74rem;
  --radius: 1rem;
  font-family: ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-synthesis: none;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--surface); color: var(--text); line-height: 1.6; }
a { color: inherit; text-underline-offset: 0.2em; }
a:focus-visible, button:focus-visible { outline: 0.2rem solid var(--focus); outline-offset: 0.2rem; }
.skip-link { position: fixed; left: 1rem; top: -6rem; z-index: 10; padding: .75rem 1rem; background: var(--surface-strong); color: white; border-radius: .5rem; }
.skip-link:focus { top: 1rem; }
.site-header, footer { max-width: var(--max-width); margin: auto; padding: 1.2rem clamp(1rem, 4vw, 3rem); display: flex; align-items: center; justify-content: space-between; gap: 1.5rem; }
.wordmark { min-height: 2.75rem; display: inline-flex; align-items: center; gap: .45rem; font-weight: 760; text-decoration: none; letter-spacing: -.02em; }
.wordmark span { width: 2.6rem; height: 2.6rem; display: grid; place-items: center; border: 1px solid var(--text); border-radius: 50%; font-size: .8rem; letter-spacing: .05em; }
nav { display: flex; gap: .2rem .85rem; flex-wrap: wrap; }
nav a { min-height: 2.75rem; display: inline-flex; align-items: center; text-decoration: none; color: var(--text-muted); font-size: .92rem; }
nav a:hover, nav a[aria-current="page"] { color: var(--text); text-decoration: underline; }
main { overflow: hidden; }
.page-hero, .page-content { max-width: var(--max-width); margin: auto; padding-inline: clamp(1rem, 4vw, 3rem); }
.page-hero { padding-top: clamp(4.5rem, 10vw, 8.5rem); padding-bottom: 2.5rem; }
.eyebrow, .kicker { margin: 0 0 1rem; color: var(--brand-primary); font-size: .78rem; font-weight: 800; letter-spacing: .14em; text-transform: uppercase; }
h1 { max-width: 18ch; margin: 0; font-family: ui-serif, Georgia, serif; font-size: clamp(2.65rem, 7vw, 6.7rem); font-weight: 520; line-height: .96; letter-spacing: -.055em; }
h2 { margin-top: 3rem; font-family: ui-serif, Georgia, serif; font-size: clamp(1.75rem, 4vw, 3.2rem); line-height: 1.08; letter-spacing: -.035em; }
h3 { margin-bottom: .5rem; font-size: 1.1rem; }
p { max-width: 68ch; }
.lede { max-width: 56ch; font-size: clamp(1.12rem, 2.4vw, 1.48rem); color: var(--text-muted); }
.review-state { margin-top: 2rem; padding: .8rem 1rem; max-width: 58rem; border-left: .3rem solid var(--warning); background: color-mix(in srgb, var(--warning) 9%, transparent); font-size: .9rem; }
.status-card { max-width: 52rem; margin: 2.25rem 0; padding: 1rem 1.2rem; display: flex; gap: .8rem; border: 1px solid var(--border); border-radius: var(--radius); background: var(--surface-raised); }
.status-mark { flex: 0 0 .85rem; width: .85rem; height: .85rem; margin-top: .3rem; border-radius: 50%; border: .18rem solid var(--warning); }
.feature-grid { margin-block: 7rem; display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; }
.section-heading { grid-column: 1 / -1; max-width: 48rem; margin-bottom: 1rem; }
.section-heading h2 { margin-top: 0; }
.feature-grid article { min-height: 16rem; padding: 1.5rem; border-top: 1px solid var(--text); background: color-mix(in srgb, var(--surface-raised) 55%, transparent); }
.feature-index { color: var(--brand-accent); font-variant-numeric: tabular-nums; font-weight: 800; }
.product-frame { margin-block: 5rem 8rem; padding: clamp(1.5rem, 5vw, 4rem); border-radius: calc(var(--radius) * 1.5); background: var(--surface-strong); color: #f6f1e8; display: grid; grid-template-columns: .9fr 1.1fr; align-items: center; gap: clamp(2rem, 6vw, 5rem); }
.product-frame .kicker { color: #e8b27c; }
.product-frame h2 { margin-top: 0; }
.product-frame p { color: #c8d0ca; }
.text-link { display: inline-block; margin-top: 1rem; font-weight: 700; }
.app-preview { padding: 1.2rem; border: 1px solid #59625c; border-radius: 1.25rem; background: #272d29; box-shadow: 0 1.5rem 4rem #0005; }
.app-preview-top, .week-strip { display: flex; justify-content: space-between; gap: .4rem; }
.app-preview-top { align-items: center; font-weight: 800; }
.preview-badge { padding: .2rem .5rem; border: 1px solid #9aaba0; border-radius: 99rem; font-size: .68rem; text-transform: uppercase; letter-spacing: .08em; }
.preview-date { margin-top: .35rem; font-size: .85rem; }
.session-card { margin: 1.25rem 0; padding: 1.25rem; display: grid; gap: .35rem; background: #f5f1e9; color: #202522; border-radius: .8rem; }
.session-type { color: var(--brand-primary); font-size: .72rem; font-weight: 800; letter-spacing: .12em; }
.week-strip span { flex: 1; min-width: 0; padding: .55rem .15rem; display: grid; gap: .15rem; text-align: center; border-radius: .4rem; font-size: .7rem; }
.week-strip .active { background: #e8b27c; color: #202522; }
.week-strip small { color: inherit; opacity: .8; }
.principles { margin-bottom: 8rem; }
.principle-list { margin: 0; padding: 0; list-style: none; border-top: 1px solid var(--border); }
.principle-list li { padding: 1.2rem 0; display: grid; grid-template-columns: minmax(10rem, 1fr) 2fr; gap: 1rem; border-bottom: 1px solid var(--border); }
.principle-list span { color: var(--text-muted); }
.page-content { padding-bottom: 7rem; }
.page-content > h2, .page-content > p { max-width: 54rem; }
.button { display: inline-flex; min-height: 2.75rem; align-items: center; padding: .55rem 1rem; color: white; background: var(--brand-primary); border-radius: .6rem; font-weight: 700; text-decoration: none; }
footer { padding-block: 2.5rem; align-items: flex-start; border-top: 1px solid var(--border); flex-wrap: wrap; }
footer p { margin: .2rem 0; color: var(--text-muted); font-size: .82rem; }
footer nav { max-width: 28rem; }
.legal-note { flex-basis: 100%; }

@media (max-width: 50rem) {
  .site-header { align-items: flex-start; flex-direction: column; }
  .feature-grid { grid-template-columns: 1fr; margin-block: 4.5rem; }
  .product-frame { grid-template-columns: 1fr; margin-inline: -.25rem; }
  .principle-list li { grid-template-columns: 1fr; gap: .25rem; }
}

@media (max-width: 24rem) {
  h1 { font-size: clamp(2.4rem, 15vw, 3.6rem); }
  .site-header nav { gap: .1rem .65rem; }
  .week-strip { display: grid; grid-template-columns: repeat(4, 1fr); }
}

@media (prefers-color-scheme: dark) {
  :root { --brand-primary: #e7b17d; --brand-accent: #efb26f; --brand-soft: #513b2c; --surface: #171b18; --surface-raised: #202521; --surface-strong: #0f1210; --text: #f2eee6; --text-muted: #b7c0b9; --border: #4a514c; --focus: #c6a7ff; --warning: #f5bd55; }
  .wordmark span { border-color: var(--text); }
  .button { color: #171b18; }
  .session-card .session-type { color: #5a3d28; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
}