/* The Scale Map | shared styles. Palette pulled from the book cover. */
@font-face{font-family:"Source Serif 4";font-style:normal;font-weight:400;font-display:swap;src:url(fonts/source-serif-4-latin-400-normal.woff2) format("woff2")}
@font-face{font-family:"Source Serif 4";font-style:italic;font-weight:400;font-display:swap;src:url(fonts/source-serif-4-latin-400-italic.woff2) format("woff2")}
@font-face{font-family:"Source Serif 4";font-style:normal;font-weight:600;font-display:swap;src:url(fonts/source-serif-4-latin-600-normal.woff2) format("woff2")}
@font-face{font-family:Inter;font-style:normal;font-weight:400;font-display:swap;src:url(fonts/inter-latin-400-normal.woff2) format("woff2")}
@font-face{font-family:Inter;font-style:normal;font-weight:600;font-display:swap;src:url(fonts/inter-latin-600-normal.woff2) format("woff2")}
@font-face{font-family:Inter;font-style:normal;font-weight:700;font-display:swap;src:url(fonts/inter-latin-700-normal.woff2) format("woff2")}

:root{
  --ivory:#FBF8EC;        /* cover paper */
  --paper:#F4F0E3;        /* alternate band */
  --white:#FFFFFF;
  --navy:#103B57;         /* primary ink + buttons */
  --navy-deep:#0A2B40;    /* footer / dark bands */
  --blue:#16648F;         /* cover title blue */
  --bronze:#B38A55;       /* rules + accents (decorative only) */
  --bronze-ink:#86602F;   /* bronze for small text, AA on ivory */
  --gold-on-navy:#E2BF88; /* bronze text on navy, AA */
  --ink:#1E3646;
  --body:#3E5565;
  --muted:#5E7382;
  --line:#E2DDCF;
  --serif:"Source Serif 4",Georgia,"Times New Roman",serif;
  --sans:Inter,system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;
  --radius:6px;
  --shadow:0 18px 44px rgba(16,59,87,.12);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:84px;-webkit-text-size-adjust:100%}
body{margin:0;background:var(--ivory);color:var(--ink);font:400 1.0625rem/1.65 var(--sans);-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
img,svg{max-width:100%;display:block}
a{color:var(--blue);text-underline-offset:3px}
button{font:inherit}
h1,h2,h3{font-family:var(--serif);font-weight:600;color:var(--navy);line-height:1.1;letter-spacing:-.015em;margin:0}
h1{font-size:clamp(2.6rem,5.2vw,4.4rem);margin:14px 0 22px}
h2{font-size:clamp(2rem,3.8vw,3.3rem);margin:10px 0 20px}
h3{font-size:1.4rem;line-height:1.2;margin:0 0 8px}
p{margin:0 0 16px}p:last-child{margin-bottom:0}
strong{font-weight:600;color:var(--navy)}
.container{max-width:1160px;margin:0 auto;padding:0 28px}
.narrow{max-width:820px}
.section{padding:clamp(64px,9vw,112px) 0;position:relative}
.band{background:var(--paper)}
.center{text-align:center}.center .lead{margin-left:auto;margin-right:auto}
.eyebrow{display:inline-block;font:700 .75rem/1.4 var(--sans);letter-spacing:.16em;text-transform:uppercase;color:var(--bronze-ink)}
.lead{font-size:clamp(1.12rem,1.6vw,1.27rem);line-height:1.6;color:var(--body);max-width:640px}
.muted{color:var(--muted)}.small{font-size:.9rem}
.skip-link{position:absolute;left:-999px;top:0}
.skip-link:focus{left:12px;top:12px;z-index:200;background:#fff;padding:12px 16px;border-radius:4px}
:focus-visible{outline:3px solid var(--blue);outline-offset:3px}

/* Buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;min-height:52px;padding:14px 26px;border-radius:var(--radius);border:1.5px solid var(--navy);background:var(--navy);color:#fff;font:700 1rem/1.2 var(--sans);text-decoration:none;cursor:pointer;transition:transform .18s ease,background .18s ease,box-shadow .18s ease;box-shadow:0 8px 20px rgba(16,59,87,.18)}
.btn:hover{background:var(--blue);border-color:var(--blue);transform:translateY(-2px)}
.btn-ghost{background:transparent;color:var(--navy);box-shadow:none}
.btn-ghost:hover{background:var(--navy);border-color:var(--navy);color:#fff}
.btn-light{background:var(--ivory);border-color:var(--ivory);color:var(--navy)}
.btn-light:hover{background:#fff;border-color:#fff;color:var(--navy)}
.btn-sm{min-height:42px;padding:9px 18px;font-size:.92rem;box-shadow:none}
.actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:30px}
.arrow{font-size:.85em}
.text-link{font-weight:600;color:var(--blue);text-decoration:underline;text-decoration-thickness:1px}

/* Header */
.topbar{position:sticky;top:0;z-index:60;background:rgba(251,248,236,.94);backdrop-filter:saturate(1.2) blur(10px);-webkit-backdrop-filter:saturate(1.2) blur(10px);border-bottom:1px solid var(--line)}
.nav{height:72px;display:flex;align-items:center;justify-content:space-between;gap:20px}
.brand{font:600 1.3rem/1 var(--serif);letter-spacing:.06em;color:var(--navy);text-decoration:none;white-space:nowrap}
.brand small{display:block;font:600 .62rem/1 var(--sans);letter-spacing:.2em;color:var(--bronze-ink);margin-top:5px}
.navlinks{display:flex;align-items:center;gap:26px}
.navlinks a:not(.btn){font-weight:600;font-size:.92rem;color:var(--ink);text-decoration:none}
.navlinks a:not(.btn):hover{color:var(--blue)}

/* Topographic texture (from the cover) */
.topo{position:absolute;inset:0;width:100%;height:100%;color:#D9C9A8;opacity:.55;pointer-events:none;z-index:0}

/* Footer */
.footer{background:var(--navy-deep);color:#C9D8E1;padding:56px 0 28px;font-size:.92rem}
.footer a{color:#E3ECF1;text-decoration:none}.footer a:hover{text-decoration:underline}
.footer .brand{color:#fff}
.footer-top{display:flex;justify-content:space-between;gap:36px;flex-wrap:wrap}
.footer-links{display:flex;flex-wrap:wrap;gap:12px 26px;align-content:flex-start}
.footer-bottom{border-top:1px solid #29465A;margin-top:40px;padding-top:20px;display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;font-size:.82rem;color:#A9BFCC}

@media (max-width:860px){.navlinks a:not(.btn){display:none}}
@media (max-width:640px){
  body{font-size:1rem}
  .container{padding:0 20px}
  .nav{height:64px}
  .brand{font-size:1.12rem}
  html{scroll-padding-top:72px}
  .actions .btn{width:100%}
}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{transition:none!important;animation:none!important}}