*{margin:0;padding:0;box-sizing:border-box}
:root{
  /* LUMINA's own world: warm paper + deep teal + coral (light-first, accessible) */
  --bg:#F4F1E9; --panel:#ffffff; --line:#e3dccb;
  --text:#1E2A2C; --mut:#5e6b6b;
  --teal:#1C8C7B; --teal-dk:#12665a; --teal-lt:#7fcbbd; --coral:#E07A56;
  --focus:#1463b0;
  --fs:18px;
}
html{scroll-behavior:smooth}
body{font-family:'Lexend',system-ui,sans-serif;background:var(--bg);color:var(--text);font-size:var(--fs);line-height:1.7}
h1,h2,h3{font-family:'Fraunces',Georgia,serif;font-weight:600;line-height:1.12}
em{font-style:normal;color:var(--teal)}
a{color:var(--teal-dk)}

/* ---- accessibility state classes ---- */
body.fs-sm{--fs:15px}
body.fs-lg{--fs:22px}
body.dyslexia{letter-spacing:.03em;word-spacing:.1em;line-height:1.95}
body.dyslexia h1,body.dyslexia h2,body.dyslexia h3{font-family:'Lexend',sans-serif;letter-spacing:0}
body.contrast{--text:#06100f;--mut:#33403f;--bg:#ffffff;--panel:#ffffff;--line:#12665a;--teal-dk:#0c4d43}
body.contrast #knot{opacity:.85}
body.dark{--bg:#0E1A1B;--panel:#142829;--line:#264244;--text:#EAF2F0;--mut:#9eb3b2;--teal:#46B7A4;--teal-dk:#7fcbbd;--coral:#F09474;--focus:#7ad0ff}
body.dark.contrast{--text:#ffffff;--bg:#000;--panel:#0a1414;--line:#46B7A4}
body.reduce *,body.reduce *::before,body.reduce *::after{animation:none!important;transition:none!important}

/* ---- focus + skip ---- */
:focus-visible{outline:3px solid var(--focus);outline-offset:3px;border-radius:4px}
.skip{position:absolute;left:10px;top:-60px;background:var(--teal);color:#fff;padding:10px 16px;border-radius:8px;font-weight:600;z-index:100;transition:top .2s}
.skip:focus{top:10px}

/* ---- accessibility toolbar ---- */
.a11y-bar{position:sticky;top:0;z-index:50;display:flex;flex-wrap:wrap;align-items:center;gap:10px;
  padding:10px clamp(14px,4vw,30px);background:var(--panel);border-bottom:1px solid var(--line)}
.a11y-label{color:var(--mut);font-size:.86rem;margin-right:4px}
.a11y-bar button{font-family:inherit;font-size:.86rem;color:var(--text);background:transparent;
  border:1px solid var(--line);border-radius:8px;padding:7px 13px;cursor:pointer;transition:.15s}
.a11y-bar button:hover{border-color:var(--teal);color:var(--teal-dk)}
.a11y-bar button[aria-pressed="true"]{background:var(--teal);color:#fff;border-color:var(--teal);font-weight:500}
.a11y-group{display:inline-flex;gap:4px}

/* ---- nav ---- */
.nav{display:flex;justify-content:space-between;align-items:center;padding:18px clamp(16px,5vw,40px)}
.brand{font-family:'Fraunces',serif;font-size:1.5rem;color:var(--teal-dk);letter-spacing:.14em}
.nav nav{display:flex;gap:22px}
.nav nav a{color:var(--mut);text-decoration:none;font-size:.95rem}
.nav nav a:hover{color:var(--teal-dk)}

/* ---- hero ---- */
.hero{position:relative;text-align:center;max-width:900px;margin:0 auto;padding:5vh clamp(20px,5vw,30px) 9vh}
.hero-3d{position:relative;height:clamp(240px,38vh,380px);margin:0 auto}
#knot{position:absolute;inset:0;width:100%;height:100%;display:block}
.orb-fallback{position:absolute;inset:0;display:none;
  background:radial-gradient(circle at 50% 45%,var(--teal-lt),var(--teal) 40%,transparent 72%);filter:blur(10px);opacity:.6}
.orb-fallback.show{display:block}
.eyebrow{letter-spacing:.26em;text-transform:uppercase;font-size:.74rem;color:var(--coral);font-weight:500;margin-top:6px}
.hero h1{font-size:clamp(2.4rem,6.6vw,4.4rem);margin:14px 0 18px}
.lede{max-width:640px;margin:0 auto 28px;color:var(--mut);font-size:1.08rem}
.cta-row{display:inline-flex;gap:13px;flex-wrap:wrap;justify-content:center}
.btn{display:inline-flex;align-items:center;padding:14px 28px;border-radius:11px;font-weight:500;text-decoration:none;font-size:1rem;transition:.2s}
.btn--g{background:var(--teal);color:#fff}
.btn--g:hover{background:var(--teal-dk);transform:translateY(-2px)}
.btn--o{border:1px solid var(--line);color:var(--text)}
.btn--o:hover{border-color:var(--teal)}

/* ---- bands ---- */
.band{max-width:1080px;margin:0 auto;padding:7vh clamp(20px,5vw,40px)}
.band h2{font-size:clamp(1.9rem,4.4vw,2.9rem);text-align:center;margin-bottom:36px}
.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.card{background:var(--panel);border:1px solid var(--line);border-radius:16px;padding:26px 24px;box-shadow:0 10px 30px rgba(30,42,44,.05)}
.card h3{font-size:1.4rem;color:var(--teal-dk)}
.card p{color:var(--mut);font-size:.96rem;margin-top:8px}
.why{max-width:820px;text-align:center}
.why-lede{color:var(--mut);font-size:1.15rem;line-height:1.85}
.why-lede strong{color:var(--text)}
.cta-band{text-align:center;max-width:760px}
.cta-band p{color:var(--mut);margin:10px 0 24px}

/* ---- footer ---- */
.foot{border-top:1px solid var(--line);padding:5vh 20px;text-align:center;color:var(--mut);font-size:.92rem;margin-top:4vh}
.foot strong{color:var(--teal-dk)}

@media(max-width:820px){.grid{grid-template-columns:1fr}.nav nav{display:none}}
@media(prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}}