/* m.thatapp.io — shared mobile design system (tokens from handoff §5).
   Mobile-first, single-column, no framework. CSS-only hamburger (no JS). */
:root{
  --bg:#07090F; --s1:#0D1018; --s2:#11141E;
  --bd:#1E2230; --bd2:#171b27; --bd-blue:#15324a;
  --t1:#F4F5F8; --t2:#A7AEC0; --t3:#697086; --t4:#6b7385;
  --gold:#F5A623; --gold2:#E8862A; --on-gold:#1a1205;
  --blue:#46A6E8; --on-blue:#06121d; --green:#4FD18B; --warn:#E8865A;
  --serif:'Instrument Serif',Georgia,serif; --sans:'Outfit',system-ui,-apple-system,sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{background:var(--bg);color:var(--t1);font-family:var(--sans);line-height:1.6;-webkit-font-smoothing:antialiased;overflow-x:hidden;font-size:16px}
@media (prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}html{scroll-behavior:auto}}
a{color:inherit;text-decoration:none}
img{max-width:100%}
.wrap{max-width:640px;margin:0 auto;padding:0 20px}
.eyebrow{font-size:.72rem;letter-spacing:.16em;text-transform:uppercase;color:var(--t2);font-weight:600;display:inline-flex;align-items:center;gap:.6em;margin-bottom:14px}
.eyebrow span{width:22px;height:1px;background:var(--gold);display:inline-block}
h1{font-family:var(--serif);font-weight:400;letter-spacing:-.01em;line-height:1.05;font-size:clamp(2.2rem,9vw,2.9rem)}
h2{font-family:var(--serif);font-weight:400;letter-spacing:-.01em;line-height:1.08;font-size:clamp(1.7rem,6.5vw,2.1rem)}
h3{font-size:1.05rem;font-weight:600;color:var(--t1)}
em{font-style:italic;color:var(--gold)}
.sec{padding:48px 0}
.sec.alt{background:var(--s1);border-top:1px solid var(--bd2);border-bottom:1px solid var(--bd2)}
.lead{font-size:1.06rem;color:var(--t2);line-height:1.6}
.muted{color:var(--t3)} .bright{color:var(--t1);font-weight:600}
/* buttons — min 44px tap target */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:48px;padding:14px 26px;border-radius:11px;font-size:1rem;font-weight:600;font-family:inherit;white-space:nowrap;cursor:pointer}
.btn-gold{background:var(--gold);color:var(--on-gold)}
.btn-ghost{border:1px solid var(--bd);color:var(--t1)}
.btn-block{display:flex;width:100%}
/* nav (sticky, hamburger via checkbox hack) */
.nav{position:sticky;top:0;z-index:60;background:rgba(7,9,15,.92);backdrop-filter:blur(14px);border-bottom:1px solid var(--bd2)}
.nav-bar{display:flex;align-items:center;justify-content:space-between;height:58px;max-width:640px;margin:0 auto;padding:0 20px}
.brand{font-family:var(--serif);font-size:1.4rem;letter-spacing:-.01em;color:var(--t1)}
.brand b{color:var(--blue);font-weight:400}
#navtog{position:absolute;opacity:0;pointer-events:none}
.burger{display:flex;flex-direction:column;justify-content:center;gap:5px;width:44px;height:44px;cursor:pointer;align-items:center}
.burger span{width:22px;height:2px;background:var(--t1);border-radius:2px;transition:.2s}
.menu{position:fixed;top:58px;left:0;right:0;bottom:0;background:var(--bg);transform:translateX(100%);transition:transform .25s ease;z-index:55;display:flex;flex-direction:column;padding:18px 20px 40px;overflow-y:auto}
#navtog:checked ~ .menu{transform:translateX(0)}
#navtog:checked ~ .nav .burger span:nth-child(1){transform:translateY(7px) rotate(45deg)}
#navtog:checked ~ .nav .burger span:nth-child(2){opacity:0}
#navtog:checked ~ .nav .burger span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.menu a{font-size:1.1rem;color:var(--t1);padding:15px 6px;border-bottom:1px solid var(--bd2)}
.menu .menu-cta{margin-top:18px;border-bottom:none}
/* cards / grids */
.cards{display:flex;flex-direction:column;gap:14px;margin-top:24px}
.card{background:var(--s2);border:1px solid var(--bd);border-radius:16px;padding:24px}
.stat2{display:grid;grid-template-columns:1fr 1fr;border:1px solid var(--bd);border-radius:18px;overflow:hidden;background:var(--s1);margin-top:28px}
.stat2>div{padding:24px 14px;text-align:center;border-bottom:1px solid var(--bd)}
.stat2>div:nth-child(odd){border-right:1px solid var(--bd)}
.stat2>div:nth-child(3),.stat2>div:nth-child(4){border-bottom:none}
.stat-n{font-family:var(--serif);font-size:2rem}
.stat-l{font-size:.72rem;color:var(--t3);margin-top:6px;line-height:1.4}
/* horizontal swipe slider for comparison/diagram */
.swipe{display:flex;gap:14px;overflow-x:auto;-webkit-overflow-scrolling:touch;scroll-snap-type:x mandatory;padding-bottom:8px;margin-top:24px}
.swipe::-webkit-scrollbar{height:6px}.swipe::-webkit-scrollbar-thumb{background:var(--bd);border-radius:6px}
.swipe>div{scroll-snap-align:start;flex:0 0 84%;max-width:340px}
.swipe-hint{font-size:.78rem;color:var(--t3);margin-top:8px;text-align:center}
/* connector chips */
.chips{display:flex;flex-wrap:wrap;gap:8px;margin-top:22px}
.chip{font-size:.86rem;color:var(--t2);border:1px solid var(--bd);background:var(--s1);padding:8px 14px;border-radius:100px}
.chip.podio{color:var(--blue);font-weight:700;border-color:var(--bd-blue)}
/* sign-off lockup */
.lockup{text-align:center;padding:30px 0 8px}
.lockup .ek{font-family:var(--serif);font-size:1.5rem;color:var(--gold);letter-spacing:.03em}
.lockup .hl{font-family:var(--serif);font-style:italic;font-size:1.05rem;color:var(--t1);margin-top:6px}
.lockup .wl{font-size:.82rem;color:var(--t3);margin-top:8px}
/* footer */
.foot{border-top:1px solid var(--bd2);background:var(--bg);padding:36px 0}
.foot h5{font-size:.72rem;letter-spacing:.12em;text-transform:uppercase;color:var(--t3);margin:0 0 12px}
.foot a{display:block;font-size:.92rem;color:var(--t2);margin-bottom:11px}
.foot .col{margin-bottom:26px}
.foot-bottom{border-top:1px solid var(--bd2);padding-top:20px;font-size:.78rem;color:var(--t3);line-height:1.7}
.foot-toggle{display:inline-block;margin-top:10px;color:var(--gold);font-size:.85rem;border:1px solid var(--bd);border-radius:9px;padding:10px 16px}
.hero{text-align:center;padding:44px 0 8px;position:relative}
.center{text-align:center}
.mt8{margin-top:8px}.mt14{margin-top:14px}.mt20{margin-top:20px}.mb14{margin-bottom:14px}.mb20{margin-bottom:20px}