/* Stride design system (see _work/stride/design.md). Track-day lime, cobalt knit, coral signal. */
:root { --lime:#e2f366; --lime-2:#d6ea52; --ink:#0f1a0d; --moss:#39461d; --cobalt:#2443d6; --cobalt-soft:#c9d0ff;
        --paper:#f6f7ef; --muted:#4a5640; --coral:#ff5533; --rule:rgb(15 26 13 / .16);
        --ease:cubic-bezier(.16,1,.3,1); --wrap:1280px; --r:6px; }
* { box-sizing:border-box; margin:0; }
html { background:var(--lime); color:var(--ink); font:400 18px/1.55 "Satoshi", system-ui, sans-serif; -webkit-font-smoothing:antialiased; scroll-behavior:smooth; }
body { overflow-x:clip; }
.wrap { width:min(var(--wrap), 100% - 48px); margin-inline:auto; }
h1, h2, h3, .display { font-family:"Unbounded", system-ui, sans-serif; font-weight:800; letter-spacing:-.035em; line-height:.95; }
h3 { font-weight:500; letter-spacing:-.02em; line-height:1.1; }
a { color:inherit; }
.btn { display:inline-flex; align-items:center; gap:10px; background:var(--ink); color:var(--lime); padding:16px 26px; border-radius:var(--r); text-decoration:none; font-weight:700; border:0; font:inherit; font-weight:700; cursor:pointer; transition:transform .25s var(--ease), background .15s, color .15s; }
.btn:hover { background:var(--cobalt); color:var(--paper); }
.btn.coral { background:var(--coral); color:var(--ink); }
.btn.coral:hover { background:var(--ink); color:var(--coral); }
.btn::after { content:"→"; transition:transform .2s var(--ease); }
.btn:hover::after { transform:translateX(4px); }
:focus-visible { outline:3px solid var(--cobalt); outline-offset:3px; }

/* words arrive */
[data-split] .w { display:inline-block; overflow:hidden; vertical-align:top; padding-bottom:.08em; margin-bottom:-.08em; }
[data-split] .w > span { display:inline-block; transform:translateY(105%) skewY(6deg); transition:transform .9s var(--ease); transition-delay:calc(var(--i) * 60ms); }
[data-split].in .w > span { transform:none; }
@media (scripting:none) { [data-split] .w > span { transform:none; } }

/* nav */
.nav { position:fixed; inset:0 0 auto; z-index:20; transition:background .3s, box-shadow .3s; }
.nav .wrap { display:flex; align-items:center; gap:32px; height:72px; }
.nav .logo { font:800 22px "Unbounded", sans-serif; letter-spacing:-.04em; text-decoration:none; display:flex; align-items:center; gap:8px; }
.nav .logo i { width:22px; height:10px; background:var(--coral); border-radius:2px 10px 10px 2px; display:inline-block; transform:skewX(-20deg); }
.nav .links { display:flex; gap:28px; margin-left:auto; align-items:center; }
.nav .links a:not(.btn) { text-decoration:none; font-weight:500; position:relative; }
.nav .links a:not(.btn)::after { content:""; position:absolute; left:0; right:0; bottom:-4px; height:2px; background:currentColor; transform:scaleX(0); transform-origin:right; transition:transform .3s var(--ease); }
.nav .links a:not(.btn):hover::after, .nav .links a[aria-current]::after { transform:scaleX(1); transform-origin:left; }
.nav .btn { padding:11px 18px; font-size:15px; }
.nav.solid { background:rgb(226 243 102 / .92); box-shadow:0 1px 0 var(--rule); backdrop-filter:blur(8px); }
.nav .menu { display:none; margin-left:auto; background:none; border:0; font:inherit; font-weight:700; cursor:pointer; padding:10px 0; color:inherit; }

/* footer */
footer { background:var(--ink); color:var(--paper); padding:96px 0 32px; }
footer .top { display:grid; grid-template-columns:1.6fr repeat(3, 1fr); gap:40px; }
footer .big { font:800 clamp(2.4rem, 6vw, 5rem)/.9 "Unbounded", sans-serif; letter-spacing:-.04em; color:var(--lime); }
footer h4 { font-size:14px; font-weight:700; color:#b9c2a6; margin-bottom:14px; }
footer ul { list-style:none; padding:0; display:grid; gap:8px; }
footer a { text-decoration:none; } footer a:hover { color:var(--lime); }
footer .small { margin-top:80px; padding-top:24px; border-top:1px solid rgb(246 247 239 / .16); display:flex; justify-content:space-between; gap:24px; flex-wrap:wrap; font-size:14px; color:#b9c2a6; }

/* waitlist form */
.waitlist { display:grid; grid-template-columns:1fr auto auto; gap:10px; max-width:640px; }
.waitlist input, .waitlist select { font:inherit; padding:15px 16px; border-radius:var(--r); border:2px solid var(--ink); background:var(--paper); color:var(--ink); min-width:0; }
.waitlist .ok { grid-column:1 / -1; font-weight:700; outline:none; }
.waitlist.done > :not(.ok) { display:none; }
.sr { position:absolute; width:1px; height:1px; overflow:hidden; clip:rect(0 0 0 0); white-space:nowrap; }

/* page heads for the extra pages */
.page-head { padding:160px 0 80px; }
.page-head h1 { font-size:clamp(2.8rem, 8vw, 7.4rem); max-width:12ch; }
.page-head p { max-width:44ch; margin-top:28px; font-size:1.2rem; color:var(--moss); }

@media (max-width:820px) {
  .nav .menu { display:block; }
  .nav .links { display:none; position:absolute; top:72px; left:0; right:0; background:var(--lime); flex-direction:column; align-items:flex-start; padding:12px 24px 28px; gap:18px; box-shadow:0 1px 0 var(--rule); }
  .nav.open .links { display:flex; }
  .nav.open { background:var(--lime); }
  footer .top { grid-template-columns:1fr 1fr; }
  footer .top > :first-child { grid-column:1 / -1; }
  .waitlist { grid-template-columns:1fr; }
}