:root{--bg:#F6F8F5;--ink:#15211F;--muted:#4C5C58;--sea:#0F4C55;--sand:#B9701F;--line:#CBD5D0;--card:#FFFFFF;--accent:var(--sea);
 --head:"Bricolage Grotesque","Trebuchet MS",sans-serif;--body:"Source Serif 4",Georgia,serif}
@media (prefers-color-scheme:dark){:root{--bg:#101A19;--ink:#E8EFEC;--muted:#A3B5B0;--sea:#6CC3CC;--sand:#E3A55B;--line:#2A3B38;--card:#17262A}}
body.desert{--accent:var(--sand)}body.coast{--accent:var(--sea)}
*{box-sizing:border-box}html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--ink);font:1.125rem/1.65 var(--body)}
h1,h2,h3,.brand,.btn,nav a{font-family:var(--head)}
h1{font-size:clamp(2.2rem,6vw,3.8rem);line-height:1.05;margin:0 0 .5em;font-weight:800}
h2{font-size:1.6rem;margin:1.6em 0 .5em}h3{margin:0 0 .25em;font-size:1.25rem}
a{color:var(--accent)}a:focus-visible,button:focus-visible,input:focus-visible{outline:3px solid var(--accent);outline-offset:2px}
.skip{position:absolute;left:-999px}.skip:focus{left:1rem;top:1rem;background:var(--card);padding:.5rem}
.site-header{display:flex;align-items:center;justify-content:space-between;padding:1rem 1.5rem;border-bottom:1px solid var(--line);flex-wrap:wrap;gap:.5rem}
.brand{font-weight:800;font-size:1.4rem;text-decoration:none;color:var(--ink)}
.site-header nav{display:flex;gap:1.25rem}.site-header nav a{text-decoration:none;color:var(--ink);font-weight:500}
.site-header nav a:hover{color:var(--accent)}
.menu-btn{display:none;font:inherit;font-family:var(--head);background:none;border:1px solid var(--line);color:var(--ink);padding:.4rem .9rem;border-radius:6px}
.crumbs{padding:.6rem 1.5rem;font-size:.95rem;color:var(--muted)}.crumbs a{color:var(--muted)}.crumbs span+span:before,.crumbs a+span:before{content:"/";margin:0 .5rem}
.wrap{max-width:62rem;margin:0 auto;padding:1.5rem}.narrow{max-width:42rem}
.lead{font-size:1.3rem;color:var(--muted);max-width:38rem}
.hero{padding:5rem 1.5rem 9rem;max-width:62rem;margin:0 auto;position:relative}
.hero:after{content:"";position:absolute;left:0;right:0;bottom:0;height:7rem;
 background:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 1200 120' preserveAspectRatio='none'%3E%3Cpath d='M0 70 C150 10 300 110 450 60 S750 0 900 55 1100 100 1200 40 V120 H0Z' fill='%23B9701F' fill-opacity='.85'/%3E%3Cpath d='M0 95 C200 60 350 120 600 90 S950 50 1200 85 V120 H0Z' fill='%230F4C55'/%3E%3C/svg%3E") bottom/100% 100% no-repeat}
.hero-links{display:flex;gap:1rem;flex-wrap:wrap;margin-top:1.5rem}
.btn{display:inline-block;background:var(--sea);color:#fff;padding:.7rem 1.3rem;border-radius:8px;text-decoration:none;font-weight:700;border:0;cursor:pointer;font-size:1rem}
.btn.alt{background:var(--sand)}.btn.small{padding:.4rem .9rem}
body.desert .btn{background:var(--sand)}
.cards{list-style:none;padding:0;margin:1.5rem 0;display:grid;grid-template-columns:repeat(auto-fit,minmax(16rem,1fr));gap:1rem}
.card{background:var(--card);border:1px solid var(--line);border-left:6px solid var(--sea);border-radius:4px}
.card.desert{border-left-color:var(--sand)}
.card a{display:block;padding:1.1rem 1.2rem;text-decoration:none;color:var(--ink);height:100%}
.card p{margin:0;color:var(--muted)}.card a:hover h3{text-decoration:underline}
.card.visited h3:after{content:" (visited)";font:400 .85rem var(--body);color:var(--muted)}
.filter{display:block;margin:1rem 0}.filter input{display:block;margin-top:.3rem;width:100%;max-width:24rem;padding:.6rem;font:inherit;border:1px solid var(--line);border-radius:6px;background:var(--card);color:var(--ink)}
.tips li,.tree li{margin:.3rem 0}.tree ul{padding-left:1.3rem}.note{color:var(--muted)}
#ready-msg{margin-left:.5rem;color:var(--accent);font-weight:600}
.site-footer{border-top:1px solid var(--line);padding:1.5rem;color:var(--muted);font-size:.95rem;text-align:center;margin-top:3rem}
@media (max-width:600px){.menu-btn{display:block}.site-header nav{display:none;width:100%;flex-direction:column}.site-header nav.open{display:flex}}