:root{--sky:#d7eef8;--sky-deep:#9fd0e8;--foam:#f3faf4;--rock:#4d5a66;--rock-deep:#2f3a44;--grass:#2f7a45;--water:#3aa7b5;--sand:#e6c87a;--sand-deep:#c9a84a;--ink:#1c2a33;--muted:#5a6a74;--line:#c5d7df;--paper:#fff;color-scheme:light}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;min-height:100vh;color:var(--ink);font-family:Trebuchet MS,Segoe UI,sans-serif;line-height:1.55;background:radial-gradient(ellipse at 70% -10%,rgba(159,208,232,.55),transparent 42%),radial-gradient(ellipse at 10% 20%,rgba(58,167,181,.12),transparent 35%),linear-gradient(180deg,var(--sky) 0,var(--foam) 48%,#e7f3ea 100%);background-attachment:fixed;animation:sky-shift 18s ease-in-out infinite alternate}@keyframes sky-shift{0%{background-position:0 0,0 0,0 0}to{background-position:40px -20px,-30px 10px,0 0}}a{color:var(--water)}img{max-width:100%;height:auto}h1,h2,h3{font-family:Georgia,Iowan Old Style,Palatino Linotype,serif;line-height:1.15;font-weight:700;color:var(--rock-deep)}.skip{position:absolute;left:1rem;top:-4rem;background:#fff;padding:.5rem .8rem}.skip:focus{top:.5rem;z-index:5}.site-header{background:linear-gradient(180deg,var(--rock-deep),var(--rock));color:#f4fbfc;border-bottom:5px solid var(--grass)}.header-bar{justify-content:space-between;gap:1rem;width:min(1080px,calc(100% - 2rem));margin:0 auto;padding:.85rem 0 1rem}.brand,.header-bar{display:flex;align-items:center}.brand{gap:.7rem;color:inherit;text-decoration:none;font-family:Georgia,serif;font-size:1.15rem}.brand small{display:block;font-family:Trebuchet MS,Segoe UI,sans-serif;font-size:.75rem;letter-spacing:.04em;color:#b9e4ea}.nav-toggle{display:none}.nav{display:flex;flex-wrap:wrap;gap:.4rem .9rem;align-items:center}.nav a{color:#f4fbfc;text-decoration:none;font-size:.95rem}.nav a[aria-current=page]{border-bottom:2px solid var(--sand)}.play{background:var(--sand-deep);color:var(--rock-deep)!important;text-decoration:none;border-radius:8px;padding:.45rem .85rem;font-weight:700;transition:transform .16s ease,box-shadow .16s ease;box-shadow:0 6px 0 rgba(47,58,68,.25)}.play:hover{transform:translateY(-2px)}main{width:min(1080px,calc(100% - 2rem));margin:1.25rem auto 2.5rem}.hero{position:relative;display:grid;grid-template-columns:1.05fr .95fr;grid-gap:0;gap:0;align-items:stretch;min-height:min(72vh,560px);margin:-1.25rem calc(50% - 50vw) 1.25rem;width:100vw;overflow:hidden;background:#6aa8c8}.hero-media{width:100%;height:100%;object-fit:cover;display:block}.hero-media,.hero-shade{position:absolute;inset:0}.hero-shade{background:linear-gradient(90deg,rgba(28,42,51,.72),rgba(28,42,51,.35) 48%,rgba(28,42,51,.15)),linear-gradient(180deg,transparent 40%,rgba(28,42,51,.45))}.hero-copy{position:relative;z-index:1;color:#f7fcfd;padding:clamp(1.4rem,4vw,2.6rem);max-width:34rem;align-self:end}.hero-copy h1{color:#fff;margin:.35rem 0 .7rem;font-size:clamp(1.7rem,4vw,2.55rem)}.hero-copy .lede{font-size:1.08rem;color:#e4f3f6}.hero-copy .chip{background:rgba(47,122,69,.9);color:#fff}.hero-copy .play{display:inline-block;margin-top:.6rem}.card,.panel{background:hsla(0,0%,100%,.92);border:1px solid var(--line);border-left:6px solid var(--rock);border-radius:4px;padding:1rem 1.1rem}.chip{display:inline-block;background:#e3f5ea;color:var(--grass);border-radius:4px;padding:.15rem .55rem;font-size:.78rem;font-weight:700;letter-spacing:.03em}.lede{font-size:1.12rem}.answer{margin:1rem 0}.plain,.steps{padding-left:1.2rem}.plain li,.steps li{margin:.4rem 0}.grid-3,.stat-grid{display:grid;grid-template-columns:repeat(3,1fr);grid-gap:.75rem;gap:.75rem}.stat-grid{grid-template-columns:repeat(4,1fr);margin:1rem 0}.stat{background:#fff;border:1px solid var(--line);border-radius:4px;padding:.7rem .8rem}.stat b{display:block;font-size:1.15rem;font-family:Georgia,serif}.stat span{color:var(--muted);font-size:.82rem}.note{background:#fff8e6;border:1px dashed var(--sand-deep);border-radius:4px;padding:.8rem 1rem;margin:1rem 0}.site-footer{border-top:5px solid var(--grass);background:var(--rock-deep);color:#dce9ee;padding:1.2rem 0 2rem}.site-footer a{color:var(--sand)}.footer-inner{width:min(1080px,calc(100% - 2rem));margin:0 auto}.footer-brand{display:flex;gap:.6rem;align-items:flex-start}.desktop-nav{display:flex}.check-list{list-style:none;padding:0}.check-row{display:flex;gap:.6rem;align-items:flex-start;width:100%;border-radius:4px;margin:.4rem 0;text-align:left;border:1px solid var(--water);background:#fff;padding:.45rem .7rem;cursor:pointer;transition:background .16s ease}.check-row[data-done=true]{background:#e3f5ea}@media (max-width:800px){.hero{min-height:70vh;grid-template-columns:1fr}.hero-copy{max-width:none}.grid-3,.stat-grid{grid-template-columns:1fr}.desktop-nav{display:none}.nav-toggle{display:block}.nav-toggle summary{list-style:none;cursor:pointer;color:#fff;border:1px solid hsla(0,0%,100%,.35);border-radius:8px;padding:.35rem .7rem}.nav-toggle .nav{display:none}.nav-toggle[open] .nav{display:flex;flex-direction:column;align-items:flex-start;position:absolute;right:1rem;background:var(--rock-deep);padding:.8rem;border-radius:8px;z-index:3}.header-bar{position:relative}}