/* ══════════════════════════════════════════════════════════════
   CalcOS — shared site chrome (nav / footer / legal documents)
   Matches the CalcOS landing page design system.
   ══════════════════════════════════════════════════════════════ */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{
  --bg:#070A08;
  --bg-2:#0A0E0B;
  --elev:#0C110D;
  --forest:#124619;
  --lime:#CDF546;
  --lime-2:#B7E634;
  --emerald:#33D69A;
  --ink:#F2F6F0;
  --muted:#8E9A8D;
  --muted-2:#68746A;
  --line:rgba(255,255,255,.07);
  --line-2:rgba(255,255,255,.11);
  --card:rgba(255,255,255,.024);
  --card-2:rgba(255,255,255,.04);
  --r-sm:14px; --r:20px; --r-lg:28px; --r-xl:34px;
  --shell:1160px;
  --ease:cubic-bezier(.22,.61,.36,1);
  --font:'Inter',system-ui,-apple-system,sans-serif;
  --disp:'Space Grotesk','Inter',sans-serif;
}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  font-family:var(--font);
  background:var(--bg);
  color:var(--ink);
  line-height:1.6;
  overflow-x:hidden;
  font-feature-settings:"ss01","cv01";
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
body::before{
  content:'';position:fixed;inset:0;pointer-events:none;z-index:0;
  background:
    radial-gradient(60% 40% at 78% -5%, rgba(205,245,70,.10), transparent 60%),
    radial-gradient(50% 45% at 8% 8%, rgba(51,214,154,.055), transparent 62%),
    radial-gradient(80% 60% at 50% 120%, rgba(18,70,25,.35), transparent 70%);
}
a{color:inherit;text-decoration:none}
img,svg{display:block;max-width:100%}
::selection{background:rgba(205,245,70,.28);color:#fff}
.shell{width:100%;max-width:var(--shell);margin:0 auto;padding:0 32px;position:relative;z-index:1}

/* ── Typography helpers ── */
.eyebrow{display:inline-flex;align-items:center;gap:9px;font-size:12px;font-weight:500;
  letter-spacing:.14em;text-transform:uppercase;color:var(--muted)}
.eyebrow::before{content:'';width:6px;height:6px;border-radius:50%;background:var(--lime);box-shadow:0 0 12px 2px rgba(205,245,70,.6)}
h1,h2,h3{font-family:var(--disp);font-weight:600;letter-spacing:-.02em;line-height:1.04}
.lede{font-size:clamp(16px,1.5vw,19px);color:var(--muted);font-weight:400;line-height:1.66}
.grad{background:linear-gradient(104deg,var(--lime) 0%,#EAFFB0 34%,var(--emerald) 100%);
  -webkit-background-clip:text;background-clip:text;color:transparent}
.muted{color:var(--muted)}

/* ── Buttons ── */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;font-family:var(--font);
  font-size:15px;font-weight:550;padding:14px 24px;border-radius:100px;border:1px solid transparent;
  cursor:pointer;transition:transform .35s var(--ease),box-shadow .35s var(--ease),background .3s,border-color .3s,color .3s;
  white-space:nowrap;line-height:1}
.btn svg{width:16px;height:16px;transition:transform .35s var(--ease)}
.btn-primary{background:linear-gradient(180deg,#E4FF74,var(--lime));color:#0C1A0C;
  box-shadow:0 6px 24px -6px rgba(205,245,70,.5),inset 0 1px 0 rgba(255,255,255,.4)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 14px 40px -8px rgba(205,245,70,.6),inset 0 1px 0 rgba(255,255,255,.4)}
.btn-primary:hover svg{transform:translateX(3px)}
.btn-ghost{background:var(--card-2);color:var(--ink);border-color:var(--line-2)}
.btn-ghost:hover{background:rgba(255,255,255,.07);border-color:rgba(255,255,255,.2);transform:translateY(-2px)}
.btn-sm{padding:10px 18px;font-size:14px}

/* ══ NAV ══ */
.nav{position:fixed;top:0;left:0;right:0;z-index:100;
  transition:padding .4s var(--ease),background .4s,backdrop-filter .4s,border-color .4s;
  border-bottom:1px solid transparent}
.nav-inner{max-width:var(--shell);margin:0 auto;padding:20px 32px;display:flex;align-items:center;
  justify-content:space-between;gap:24px;transition:padding .4s var(--ease)}
.nav.scrolled{background:rgba(7,10,8,.72);backdrop-filter:blur(18px) saturate(1.4);
  -webkit-backdrop-filter:blur(18px) saturate(1.4);border-bottom-color:var(--line)}
.nav.scrolled .nav-inner{padding:12px 32px}
.brand{display:flex;align-items:center;gap:11px}
.brand img{border-radius:8px}
.brand-name{font-family:var(--disp);font-weight:600;font-size:16.5px;letter-spacing:-.01em;color:var(--ink)}
.nav-links{display:flex;align-items:center;gap:4px}
.nav-links a{padding:8px 14px;font-size:14.5px;color:var(--muted);font-weight:450;border-radius:100px;transition:color .2s,background .2s}
.nav-links a:hover,.nav-links a.active{color:var(--ink);background:var(--card-2)}
.nav-cta{display:flex;align-items:center;gap:6px}
.nav-toggle{display:none;width:42px;height:42px;border-radius:12px;border:1px solid var(--line-2);
  background:var(--card-2);color:var(--ink);cursor:pointer;place-items:center}
.nav-toggle svg{width:20px;height:20px}
.m-menu{position:fixed;inset:0;z-index:99;background:rgba(6,9,7,.92);backdrop-filter:blur(20px);
  display:flex;flex-direction:column;justify-content:center;gap:6px;padding:32px;
  opacity:0;visibility:hidden;transition:opacity .4s var(--ease),visibility .4s}
.m-menu.open{opacity:1;visibility:visible}
.m-menu a{font-family:var(--disp);font-size:30px;font-weight:500;color:var(--ink);padding:12px 0;
  border-bottom:1px solid var(--line);letter-spacing:-.02em}
.m-menu a:last-of-type{border:none}
.m-menu .btn{margin-top:24px;justify-content:center}

/* ── reveal ── */
[data-reveal]{opacity:0;transform:translateY(22px);transition:opacity .8s var(--ease),transform .8s var(--ease)}
[data-reveal].in{opacity:1;transform:none}
[data-reveal][data-d="1"]{transition-delay:.08s}
[data-reveal][data-d="2"]{transition-delay:.16s}

/* ══ LEGAL DOCUMENTS ══ */
.legal{padding:150px 0 60px;position:relative}
.legal .shell{max-width:840px}
.doc-header{margin-bottom:34px}
.doc-badge{display:inline-flex;align-items:center;gap:6px;background:var(--card-2);color:var(--lime);
  font-size:12px;font-weight:600;letter-spacing:.06em;text-transform:uppercase;padding:6px 13px;
  border:1px solid rgba(205,245,70,.28);border-radius:20px;margin-bottom:18px}
.doc-title{font-family:var(--disp);font-size:clamp(30px,5vw,46px);font-weight:600;letter-spacing:-.03em;line-height:1.08;margin-bottom:10px}
.doc-date{font-size:14px;color:var(--muted-2)}
.doc-body{background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);padding:40px}
.doc-body h2{font-family:var(--disp);font-size:19px;font-weight:600;color:var(--ink);letter-spacing:-.01em;margin-top:32px;margin-bottom:12px}
.doc-body h2:first-child{margin-top:0}
.doc-body p{font-size:15.5px;color:var(--muted);margin-bottom:15px;line-height:1.72}
.doc-body strong{color:var(--ink);font-weight:600}
.doc-body ul{list-style:none;margin-bottom:15px;display:flex;flex-direction:column;gap:9px}
.doc-body ul li{font-size:15.5px;color:var(--muted);line-height:1.65;padding-left:20px;position:relative}
.doc-body ul li::before{content:'';position:absolute;left:0;top:9px;width:7px;height:7px;border-radius:50%;
  background:var(--lime);box-shadow:0 0 8px 1px rgba(205,245,70,.4)}
.doc-body a{color:var(--lime);font-weight:500;border-bottom:1px solid rgba(205,245,70,.3);text-underline-offset:2px;transition:border-color .2s}
.doc-body a:hover{border-bottom-color:var(--lime)}
.contact-card{margin-top:24px;background:var(--elev);border:1px solid var(--line);border-radius:var(--r);padding:20px 22px}
.contact-card strong{display:block;font-family:var(--disp);font-size:15px;font-weight:600;color:var(--ink);margin-bottom:4px}
.contact-card span{font-size:14px;color:var(--muted)}
.contact-card a{color:var(--lime);border-bottom:1px solid rgba(205,245,70,.3)}
.doc-nav{display:flex;gap:18px;margin-top:30px;font-size:14px}
.doc-nav a{color:var(--muted);border-bottom:1px solid transparent;transition:color .2s}
.doc-nav a:hover{color:var(--lime)}

/* ── legal hub ── */
.legal-hub{text-align:center;max-width:640px;margin:0 auto}
.legal-hub .hub-icon{width:80px;height:80px;border-radius:22px;margin:0 auto 24px;box-shadow:0 18px 46px -18px rgba(205,245,70,.45)}
.legal-hub h1{font-size:clamp(32px,6vw,52px);letter-spacing:-.03em;margin-bottom:14px}
.legal-hub p{font-size:16px;color:var(--muted);line-height:1.62}
.legal-hub p strong{color:var(--lime);font-weight:600}
.legal-cards{display:grid;grid-template-columns:1fr 1fr;gap:18px;max-width:720px;margin:46px auto 0}
.legal-card{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:28px;display:block;
  transition:transform .35s var(--ease),border-color .3s,background .3s}
.legal-card:hover{transform:translateY(-4px);border-color:rgba(205,245,70,.35);background:var(--card-2)}
.legal-card .ci{font-size:28px;margin-bottom:14px}
.legal-card h2{font-size:18px;margin-bottom:6px}
.legal-card p{font-size:14px;color:var(--muted);line-height:1.55}

/* ══ FOOTER ══ */
footer{border-top:1px solid var(--line);padding:70px 0 40px;margin-top:40px;position:relative;z-index:1}
.foot-top{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;padding-bottom:50px}
.foot-brand .brand{margin-bottom:18px}
.foot-brand p{font-size:14.5px;color:var(--muted);max-width:320px;line-height:1.6}
.foot-brand p a{color:var(--lime)}
.foot-col h4{font-family:var(--disp);font-size:13px;color:var(--muted-2);font-weight:500;
  letter-spacing:.06em;text-transform:uppercase;margin-bottom:16px}
.foot-col a{display:block;font-size:14.5px;color:var(--muted);padding:5px 0;transition:color .2s}
.foot-col a:hover{color:var(--lime)}
.foot-bot{display:flex;justify-content:space-between;align-items:center;gap:16px;
  padding-top:28px;border-top:1px solid var(--line);flex-wrap:wrap}
.foot-bot p{font-size:13px;color:var(--muted-2)}
.foot-bot a{color:var(--muted);font-size:13px}
.foot-bot a:hover{color:var(--lime)}

/* ══ RESPONSIVE ══ */
@media(max-width:720px){
  .shell{padding:0 22px}
  .nav-inner{padding:16px 22px}
  .nav.scrolled .nav-inner{padding:11px 22px}
  .nav-links,.nav-cta .btn{display:none}
  .nav-toggle{display:grid}
  .legal{padding:120px 0 40px}
  .doc-body{padding:26px}
  .legal-cards{grid-template-columns:1fr}
  .foot-top{grid-template-columns:1fr 1fr}
  .foot-brand{grid-column:span 2}
}
@media(max-width:420px){
  .foot-top{grid-template-columns:1fr}.foot-brand{grid-column:span 1}
}
@media(prefers-reduced-motion:reduce){
  *{animation:none!important}
  [data-reveal]{opacity:1;transform:none;transition:none}
  html{scroll-behavior:auto}
}