[hidden]{display:none!important}img{max-width:100%}

/* Layout: hash-routed multi-page site (header with dropdown nav, page body, rich footer) plus a separate code-locked dashboard at #dashboard */
:root{
  --ink:#0E2A3B; --water:#1B6F8A; --water-ink:#FFFFFF; --spring:#DCEFF3; --sun:#F2B632; --bg:#F7FAFB; --card:#FFFFFF; --muted:#4F6674; --line:#D5E2E8;
  --deep:#0E2A3B; --on-deep:#F2F8FA; --ok:#1E7A4C; --warn:#A86200; --bad:#B3382C; --ok-bg:#E3F3EA; --warn-bg:#FBF0DD; --bad-bg:#F8E4E1;
  --display:"Young Serif", Georgia, "Times New Roman", serif;
  --body:"Figtree", system-ui, -apple-system, "Segoe UI", sans-serif;
}
@media (prefers-color-scheme: dark){:root:not([data-theme="light"]){
  --ink:#E4F1F5; --water:#5FB6CF; --water-ink:#06222C; --spring:#12303D; --bg:#0A1A23; --card:#10242F; --muted:#A3BAC5; --line:#21404F;
  --deep:#06141B; --on-deep:#F2F8FA; --ok:#6FD39C; --warn:#F2B632; --bad:#F08A7E; --ok-bg:#123327; --warn-bg:#33270D; --bad-bg:#3A1A17; color-scheme:dark}}
:root[data-theme="dark"]{
  --ink:#E4F1F5; --water:#5FB6CF; --water-ink:#06222C; --spring:#12303D; --bg:#0A1A23; --card:#10242F; --muted:#A3BAC5; --line:#21404F;
  --deep:#06141B; --on-deep:#F2F8FA; --ok:#6FD39C; --warn:#F2B632; --bad:#F08A7E; --ok-bg:#123327; --warn-bg:#33270D; --bad-bg:#3A1A17; color-scheme:dark}
*{box-sizing:border-box}
body{background:var(--bg);color:var(--ink);font:16px/1.6 var(--body);margin:0}
a{color:var(--water)}
.wrap{max-width:1160px;margin:0 auto;padding-inline:20px}
h1,h2,h3{font-family:var(--display);font-weight:400;line-height:1.15;text-wrap:balance;margin:0}
h1{font-size:clamp(2.1rem,5vw,3.3rem)}
h2{font-size:clamp(1.6rem,3.4vw,2.2rem)}
h3{font-size:1.25rem}
p{margin:0 0 12px}
.eyebrow{font-size:.78rem;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--water);margin-bottom:8px}
.lead{color:var(--muted);max-width:66ch;font-size:1.06rem}
.prose{max-width:70ch}
.prose p{color:var(--muted)}
section{padding-block:56px}
.tint{background:var(--spring)}
:focus-visible{outline:3px solid var(--sun);outline-offset:2px}
.skip{position:absolute;left:-999px;top:0;background:var(--sun);color:#0E2A3B;padding:8px 14px;font-weight:700;z-index:100}
.skip:focus{left:12px;top:12px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;padding:12px 20px;border-radius:8px;text-decoration:none;border:2px solid transparent;cursor:pointer;font:inherit;font-weight:700;line-height:1.2}
.btn.primary{background:var(--water);color:var(--water-ink)}
.btn.ghost{border-color:var(--water);color:var(--water);background:transparent}
.btn.sun{background:var(--sun);color:#0E2A3B}
.btn.small{padding:7px 12px;font-size:.88rem}
.btn.danger{background:transparent;border-color:var(--bad);color:var(--bad)}
.btn[disabled]{opacity:.5;cursor:not-allowed}
.btns{display:flex;gap:10px;flex-wrap:wrap}
input,select,textarea{font:inherit;padding:10px 12px;border-radius:8px;border:1px solid var(--line);background:var(--bg);color:var(--ink);width:100%}
textarea{min-height:96px;resize:vertical}
label{display:grid;gap:5px;font-weight:600;font-size:.92rem}
label .opt{font-weight:400;color:var(--muted)}
label.check{display:flex;align-items:flex-start;gap:10px;font-weight:500}
label.check input{width:auto;margin-top:4px}
.err{color:var(--bad);font-size:.88rem;font-weight:600}
.toast{position:fixed;left:50%;bottom:calc(20px + env(safe-area-inset-bottom,0px));transform:translateX(-50%);background:var(--deep);color:var(--on-deep);padding:10px 18px;border-radius:8px;font-weight:600;z-index:200;max-width:calc(100% - 32px)}
.ticks{list-style:none;padding:0;margin:12px 0 0;display:grid;gap:8px}
.ticks li{padding-left:28px;position:relative}
.ticks li::before{content:"";position:absolute;left:0;top:.35em;width:16px;height:16px;border-radius:50%;background:var(--water);box-shadow:inset 0 0 0 4px var(--card)}
.cols2{columns:2;column-gap:32px;display:block}
.cols2 li{break-inside:avoid;margin-bottom:8px}
@media (max-width:620px){.cols2{columns:1}}
.boxed{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:24px}
.callout{border-left:4px solid var(--bad);background:var(--bad-bg);padding:14px 16px;border-radius:6px;font-weight:600;color:var(--ink)}
.note{background:var(--warn-bg);color:var(--ink);border-radius:8px;padding:12px 14px;font-size:.95rem}
.split{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:start}
.split>*{min-width:0}
@media (max-width:860px){.split{grid-template-columns:1fr}}