:root{
  --black:#0A0A0A;
  --teal:#1D9E75;
  --teal-dark:#0F6E56;
  --violet:#534AB7;
  --danger:#E24B4A;
  --ink:#1A1A1A;
  --ink-soft:#55605C;
  --paper:#FAFAF8;
  --line:#E4E6E3;
  --white:#FFFFFF;
}
*{box-sizing:border-box;margin:0;padding:0}
html{-webkit-text-size-adjust:100%}
body{font-family:'Inter',system-ui,-apple-system,sans-serif;line-height:1.6}
a{color:inherit}
img{max-width:100%}
:focus-visible{outline:2px solid var(--teal);outline-offset:3px;border-radius:4px}

/* ---------- wordmark ---------- */
.wordmark{font-weight:800;font-size:1.35rem;letter-spacing:-0.03em;text-decoration:none;display:inline-flex;align-items:center;gap:.55rem}
.wordmark .o{color:var(--teal)}
.dots{display:inline-flex;gap:3px}
.dots i{width:7px;height:7px;border-radius:50%;display:block}
.dots i:first-child{background:var(--teal)}
.dots i:last-child{background:var(--violet)}

/* ---------- dark pages (landing, join) ---------- */
body.dark{background:var(--black);color:var(--white);min-height:100vh;display:flex;flex-direction:column}
body.dark .top{padding:1.4rem clamp(1.25rem,5vw,3rem);display:flex;justify-content:space-between;align-items:center}
body.dark .top nav a{color:rgba(255,255,255,.55);text-decoration:none;font-size:.85rem;margin-left:1.4rem;transition:color .15s}
body.dark .top nav a:hover{color:var(--white)}
.hero{flex:1;display:flex;flex-direction:column;justify-content:center;align-items:center;text-align:center;padding:3rem 1.5rem 4rem}
.hero h1{font-size:clamp(3rem,9vw,5.5rem);font-weight:800;letter-spacing:-0.045em;line-height:1}
.hero h1 .o{color:var(--teal)}
.tagline{margin-top:1.1rem;font-size:clamp(1.05rem,2.6vw,1.45rem);font-weight:600;letter-spacing:.01em}
.tagline .t1{color:var(--violet)}
.tagline .t2{color:rgba(255,255,255,.92)}
.tagline .t3{color:var(--teal)}
.hero p.sub{margin-top:1.2rem;max-width:34rem;color:rgba(255,255,255,.6);font-size:1rem}
.features{margin-top:2.6rem;display:flex;flex-direction:column;gap:.85rem;text-align:left}
.features li{list-style:none;display:flex;align-items:center;gap:.8rem;color:rgba(255,255,255,.78);font-size:.95rem}
.badges{margin-top:3rem;display:flex;gap:.8rem;flex-wrap:wrap;justify-content:center}
.badge{border:1px solid rgba(255,255,255,.22);border-radius:12px;padding:.65rem 1.15rem;font-size:.83rem;color:rgba(255,255,255,.65);display:flex;flex-direction:column;line-height:1.25}
.badge b{color:var(--white);font-size:.95rem}
.badge small{font-size:.7rem;letter-spacing:.06em;text-transform:uppercase;color:rgba(255,255,255,.4)}
body.dark footer{padding:1.6rem clamp(1.25rem,5vw,3rem);display:flex;justify-content:space-between;gap:1rem;flex-wrap:wrap;border-top:1px solid rgba(255,255,255,.09);font-size:.8rem;color:rgba(255,255,255,.45)}
body.dark footer a{color:rgba(255,255,255,.6);text-decoration:none}
body.dark footer a:hover{color:var(--white)}

/* join page */
.join-card{background:rgba(255,255,255,.045);border:1px solid rgba(255,255,255,.12);border-radius:20px;padding:2.2rem 2rem;max-width:26rem;width:100%}
.join-card .avatars{display:flex;justify-content:center;gap:-8px;margin-bottom:1.2rem}
.code-pill{margin:1.1rem auto 0;display:inline-block;font-weight:700;letter-spacing:.18em;background:rgba(29,158,117,.14);color:var(--teal);border:1px solid rgba(29,158,117,.4);border-radius:10px;padding:.5rem 1rem;font-size:1.05rem}
.btn{display:inline-block;margin-top:1.6rem;background:var(--teal);color:var(--white);font-weight:700;text-decoration:none;border-radius:14px;padding:.9rem 2.2rem;font-size:1rem;transition:background .15s}
.btn:hover{background:var(--teal-dark)}
.join-alt{margin-top:1.3rem;font-size:.82rem;color:rgba(255,255,255,.5)}

/* ---------- light document pages ---------- */
body.doc{background:var(--paper);color:var(--ink)}
body.doc .top{background:var(--black);padding:1.1rem clamp(1.25rem,5vw,3rem);display:flex;justify-content:space-between;align-items:center}
body.doc .top .wordmark{color:var(--white)}
body.doc .top nav a{color:rgba(255,255,255,.55);text-decoration:none;font-size:.85rem;margin-left:1.4rem}
body.doc .top nav a:hover{color:var(--white)}
.doc-wrap{max-width:46rem;margin:0 auto;padding:3rem 1.5rem 5rem}
.doc-wrap .eyebrow{display:flex;align-items:center;gap:.6rem;font-size:.75rem;font-weight:600;letter-spacing:.14em;text-transform:uppercase;color:var(--teal-dark)}
.doc-wrap h1{font-size:clamp(1.9rem,5vw,2.6rem);font-weight:800;letter-spacing:-0.03em;margin:.6rem 0 .4rem}
.doc-wrap .updated{color:var(--ink-soft);font-size:.9rem;margin-bottom:2.4rem}
.doc-wrap h2{font-size:1.25rem;font-weight:700;letter-spacing:-0.01em;margin:2.4rem 0 .7rem;padding-top:1.4rem;border-top:1px solid var(--line)}
.doc-wrap h3{font-size:1rem;font-weight:700;margin:1.4rem 0 .4rem;color:var(--teal-dark)}
.doc-wrap p{margin:.7rem 0}
.doc-wrap ul,.doc-wrap ol{margin:.7rem 0 .7rem 1.3rem}
.doc-wrap li{margin:.35rem 0}
.doc-wrap strong{font-weight:700}
.doc-wrap table{width:100%;border-collapse:collapse;font-size:.88rem;margin:1rem 0}
.doc-wrap th{text-align:left;background:var(--black);color:var(--white);padding:.6rem .7rem;font-weight:600}
.doc-wrap td{padding:.6rem .7rem;border-bottom:1px solid var(--line);vertical-align:top}
.doc-wrap .note{background:rgba(29,158,117,.08);border-left:3px solid var(--teal);padding:.8rem 1rem;border-radius:0 10px 10px 0;font-size:.9rem;margin:1rem 0}
body.doc footer{max-width:46rem;margin:0 auto;padding:0 1.5rem 3rem;font-size:.8rem;color:var(--ink-soft);display:flex;gap:1.2rem;flex-wrap:wrap}
body.doc footer a{color:var(--ink-soft)}

@media (prefers-reduced-motion:no-preference){
  .hero>*{animation:rise .5s ease both}
  .hero>*:nth-child(2){animation-delay:.06s}
  .hero>*:nth-child(3){animation-delay:.12s}
  .hero>*:nth-child(4){animation-delay:.18s}
  .hero>*:nth-child(5){animation-delay:.24s}
  @keyframes rise{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:none}}
}
@media (max-width:520px){
  body.dark .top nav a{margin-left:.9rem}
  .badges{flex-direction:column;align-items:stretch;text-align:center}
}