:root{
  --paper:#f5f1e8;--card:#fffdf7;--ink:#14201b;--muted:#4d5a53;--line:#d9d2c0;
  --green:#0f4d3a;--green-d:#0a3829;--signal:#f2b01e;--focus:#1a5fd1;
  --serif:"Iowan Old Style","Palatino Linotype",Palatino,Georgia,serif;
  --sans:system-ui,-apple-system,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
}
@media (prefers-color-scheme:dark){
  :root{--paper:#101814;--card:#17221c;--ink:#f1ede2;--muted:#b4bdb5;--line:#2c3a32;--green:#7fd1a8;--green-d:#a6e3c4;--signal:#f2b01e;--focus:#8ab4ff}
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--paper);color:var(--ink);font:1.0625rem/1.6 var(--sans)}
a{color:var(--green)}
a:hover{color:var(--green-d)}
:focus-visible{outline:3px solid var(--focus);outline-offset:2px;border-radius:2px}
.skip{position:absolute;left:-999px;top:0;background:var(--ink);color:var(--paper);padding:.6rem 1rem;z-index:10}
.skip:focus{left:0}
.wrap{max-width:68rem;margin:0 auto;padding:0 1.25rem}
header.top{padding:1.25rem 0;border-bottom:1px solid var(--line)}
header.top .wrap{display:flex;align-items:center;justify-content:space-between;gap:1rem}
.logo{font:700 1.4rem/1 var(--serif);letter-spacing:-.01em;color:var(--ink);text-decoration:none}
.logo i{display:inline-block;width:.55em;height:.55em;background:var(--signal);border-radius:50%;margin-left:.12em;vertical-align:baseline}
.nav-cta{font-weight:600;font-size:.95rem;text-decoration:none;border-bottom:2px solid var(--signal);color:var(--ink)}
h1,h2,h3{font-family:var(--serif);line-height:1.12;letter-spacing:-.015em;margin:0 0 .6em}
h1{font-size:clamp(2.25rem,7vw,4rem);font-weight:700}
h2{font-size:clamp(1.6rem,4.5vw,2.25rem)}
h3{font-size:1.25rem}
.hero{padding:3rem 0 2.5rem}
.eyebrow{font:600 .8rem/1 var(--sans);letter-spacing:.12em;text-transform:uppercase;color:var(--muted);margin:0 0 1rem}
.lede{font-size:clamp(1.15rem,3vw,1.35rem);max-width:40rem;color:var(--muted);margin:0 0 1.75rem}
.btn{display:inline-block;background:var(--green);color:#fff;font-weight:600;padding:.85rem 1.4rem;border:0;border-radius:6px;text-decoration:none;font-size:1rem;cursor:pointer;min-height:44px}
.btn:hover{background:var(--green-d);color:#fff}
@media (prefers-color-scheme:dark){.btn{color:#08130d}.btn:hover{color:#08130d}}
/* the 18-week clock */
.clock{margin-top:2.5rem;padding:1.25rem;background:var(--card);border:1px solid var(--line);border-radius:10px}
.clock p{margin:0 0 .75rem;font-size:.9rem;color:var(--muted)}
.weeks{display:grid;grid-template-columns:repeat(18,1fr);gap:3px;list-style:none;margin:0;padding:0}
.weeks li{height:28px;background:var(--line);border-radius:2px}
.weeks li.on{background:var(--green)}
.weeks li.warn{background:var(--signal)}
.clock .legend{display:flex;justify-content:space-between;margin:.6rem 0 0;font-size:.8rem}
section{padding:2.5rem 0}
.grid{display:grid;gap:1.25rem;grid-template-columns:1fr}
.card{background:var(--card);border:1px solid var(--line);border-radius:10px;padding:1.4rem}
.card p{margin:0;color:var(--muted)}
.band{background:var(--card);border-block:1px solid var(--line)}
.note{max-width:42rem;color:var(--muted)}
@media (min-width:46rem){.grid.three{grid-template-columns:repeat(3,1fr)}.hero{padding:5rem 0 3.5rem}}
/* form */
form{display:grid;gap:1.1rem;max-width:34rem}
label{display:block;font-weight:600;font-size:.95rem;margin-bottom:.3rem}
input,select{width:100%;font:inherit;color:var(--ink);background:var(--card);border:1.5px solid #8a8f84;border-radius:6px;padding:.7rem .8rem;min-height:46px}
input:focus,select:focus{border-color:var(--focus)}
.hint{font-size:.85rem;color:var(--muted);margin:.3rem 0 0}
.hp{position:absolute;left:-9999px}
/* legal pages */
.legal{max-width:44rem;padding:2.5rem 0 3rem}
.legal h1{font-size:clamp(2rem,6vw,2.75rem)}
.legal h2{font-size:1.4rem;margin-top:2rem}
.legal li{margin-bottom:.4rem}
.meta{color:var(--muted);font-size:.95rem}
footer{border-top:1px solid var(--line);padding:1.75rem 0 2.5rem;font-size:.92rem;color:var(--muted)}
footer .wrap{display:flex;flex-wrap:wrap;gap:.6rem 1.5rem;justify-content:space-between}
footer nav{display:flex;gap:1.25rem;flex-wrap:wrap}
.top-nav{display:flex;align-items:center;gap:1rem}
.nav-login{font-weight:600;font-size:.95rem;text-decoration:none;color:var(--ink);border:1.5px solid var(--ink);border-radius:6px;padding:.45rem .9rem;min-height:40px;display:inline-flex;align-items:center}
.nav-login:hover{background:var(--ink);color:var(--paper)}
@media (max-width:22rem){.nav-cta{display:none}}