/* eo-book.com — shares the book cover's palette and typefaces (Anton, Source Serif 4, Inter). */
@font-face{font-family:Anton;src:url(fonts/anton-latin-400-normal.woff2) format('woff2');font-weight:400;font-display:swap}
@font-face{font-family:'Source Serif 4';src:url(fonts/source-serif-4-latin-400-normal.woff2) format('woff2');font-weight:400;font-display:swap}
@font-face{font-family:'Source Serif 4';src:url(fonts/source-serif-4-latin-400-italic.woff2) format('woff2');font-weight:400;font-style:italic;font-display:swap}
@font-face{font-family:'Source Serif 4';src:url(fonts/source-serif-4-latin-600-normal.woff2) format('woff2');font-weight:600;font-display:swap}
@font-face{font-family:'Source Serif 4';src:url(fonts/source-serif-4-latin-700-normal.woff2) format('woff2');font-weight:700;font-display:swap}
@font-face{font-family:Inter;src:url(fonts/inter-latin-400-normal.woff2) format('woff2');font-weight:400;font-display:swap}
@font-face{font-family:Inter;src:url(fonts/inter-latin-600-normal.woff2) format('woff2');font-weight:600;font-display:swap}

:root{
  --red:#C8102E; --red-deep:#A30C25; --navy:#0E1A30; --paper:#FBFAF6; --page:#F3F0E8;
  --ink:#1B1A17; --muted:#5E584D; --rule:#D8D2C4; --hl:#F7D64A;
  --display:Anton,Impact,'Arial Narrow Bold',sans-serif;
  --serif:'Source Serif 4',Georgia,'Times New Roman',serif;
  --ui:Inter,system-ui,-apple-system,'Segoe UI',sans-serif;
  --measure:38rem; --wrap:72rem; --gutter:clamp(16px,4vw,40px);
  color-scheme:light;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--serif);font-size:1.0625rem;line-height:1.6}
img{max-width:100%;height:auto;display:block}
a{color:var(--red-deep);text-underline-offset:.15em}
a:hover{color:var(--red)}
:focus-visible{outline:3px solid var(--hl);outline-offset:2px}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 var(--gutter)}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
h1,h2,h3{line-height:1.15;margin:0 0 .5em}
h2{font-family:var(--display);font-weight:400;font-size:clamp(1.9rem,4vw,2.6rem);text-transform:uppercase;letter-spacing:.01em}
h3{font-family:var(--serif);font-weight:700;font-size:1.25rem}
p{margin:0 0 1em}
.prose{max-width:var(--measure)}
.prose ul,.prose ol{padding-left:1.25em}
.prose li{margin:.3em 0}
.lede{font-size:1.2rem;line-height:1.5}
.small{font-family:var(--ui);font-size:.85rem;color:var(--muted)}

/* masthead */
.mast{background:var(--red);color:var(--paper)}
.mast .wrap{display:flex;align-items:center;justify-content:space-between;gap:1rem;min-height:64px;flex-wrap:wrap;padding-top:.5rem;padding-bottom:.5rem}
.brand{font-family:var(--display);font-size:1.5rem;text-transform:uppercase;color:var(--paper);text-decoration:none;letter-spacing:.02em}
.brand:hover{color:var(--paper)}
.nav{display:flex;gap:1.25rem;flex-wrap:wrap;font-family:var(--ui);font-size:.92rem}
.nav a{color:var(--paper);text-decoration:none;opacity:.9}
.nav a:hover,.nav a[aria-current]{opacity:1;text-decoration:underline}
.page-plain .mast{border-bottom:6px solid var(--navy)}

/* hero */
.hero{background:var(--red);color:var(--paper);padding:clamp(2rem,6vw,4.5rem) 0 clamp(2.5rem,6vw,5rem)}
.hero .wrap{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,1fr);gap:clamp(2rem,5vw,4.5rem);align-items:start}
.hero h1{font-family:var(--display);font-weight:400;text-transform:uppercase;font-size:clamp(2.6rem,7vw,5.2rem);line-height:.95;letter-spacing:.005em;margin:0 0 .45em}
.hero h1 span{display:block}
.hero .rule{width:5.5rem;height:6px;background:var(--paper);margin:0 0 1.4rem}
.hero .lede{max-width:32rem;margin-bottom:1.8rem}
.buy{display:flex;flex-wrap:wrap;gap:.75rem;margin-bottom:.9rem}
.btn{display:inline-flex;align-items:center;gap:.5rem;font-family:var(--ui);font-weight:600;font-size:1rem;line-height:1.2;padding:.85rem 1.25rem;border-radius:4px;text-decoration:none;border:2px solid transparent;cursor:pointer}
.btn-light{background:var(--paper);color:var(--red-deep)}
.btn-light:hover{background:#fff;color:var(--red)}
.btn-ghost{border-color:var(--paper);color:var(--paper);background:transparent}
.btn-ghost:hover{background:rgba(255,255,255,.12);color:var(--paper)}
.btn-red{background:var(--red);color:var(--paper)}
.btn-red:hover{background:var(--red-deep);color:var(--paper)}
.btn .price{font-weight:400;opacity:.85}
.hero .note{font-family:var(--ui);font-size:.88rem;opacity:.92;margin:0}

/* the ledger: one square per order */
.ledger figure{margin:0}
.grid{display:grid;grid-template-columns:repeat(19,minmax(0,1fr));gap:4px;max-width:34rem}
.hero .wrap>*{min-width:0}
.cell{aspect-ratio:1;border-radius:2px;position:relative;border:1.5px solid var(--paper)}
.cell.effect{background:var(--paper)}
.cell.partial{background:linear-gradient(135deg,var(--paper) 0 50%,transparent 50% 100%)}
.cell.blocked{background:var(--navy);border-color:var(--navy)}
.cell.ended{background:transparent}
.cell.revoked{background:transparent;border-style:dashed}
.cell.other{background:rgba(251,250,246,.22);border-color:transparent}
.cell.court::after{content:'';position:absolute;right:-3px;top:-3px;width:7px;height:7px;border-radius:50%;background:var(--hl);box-shadow:0 0 0 1.5px var(--red)}
.cell.on{outline:2px solid var(--hl);outline-offset:1px}
.readout{font-family:var(--ui);font-size:.92rem;min-height:3.2em;margin:.9rem 0 .6rem;max-width:34rem}
.readout b{font-weight:600}
.readout a{color:var(--paper)}
.legend{list-style:none;padding:0;margin:0;display:grid;grid-template-columns:repeat(auto-fill,minmax(10.5rem,1fr));gap:.45rem 1rem;font-family:var(--ui);font-size:.85rem;max-width:34rem}
.legend li{display:flex;align-items:center;gap:.5rem}
.legend .cell{width:14px;height:14px;flex:none}
.ledger figcaption{font-family:var(--ui);font-size:.85rem;opacity:.9;margin-top:.9rem;max-width:34rem}
.ledger figcaption a{color:var(--paper)}

/* sections */
.band{padding:clamp(2.75rem,7vw,5rem) 0}
.band-page{background:var(--page)}
.band-navy{background:var(--navy);color:var(--paper)}
.band-navy a{color:var(--hl)}
.book{display:grid;grid-template-columns:minmax(0,16rem) minmax(0,1fr);gap:clamp(1.5rem,5vw,4rem);align-items:start}
.book img{box-shadow:0 18px 40px -18px rgba(14,26,48,.55);border-radius:2px}
.book h2{margin-top:0}
.chapters{list-style:none;padding:0;margin:1.5rem 0 0;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 2.5rem;max-width:56rem}
.chapters li{display:flex;justify-content:space-between;gap:1rem;padding:.7rem 0;border-bottom:1px solid var(--rule)}
.chapters .n{font-family:var(--ui);font-size:.85rem;color:var(--muted);white-space:nowrap;font-variant-numeric:tabular-nums}
.forms{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:clamp(2rem,5vw,4rem)}
.forms h2{font-size:clamp(1.6rem,3.2vw,2.1rem)}
form.signup{display:flex;flex-wrap:wrap;gap:.6rem;margin-top:1rem}
form.signup input[type=email]{flex:1 1 14rem;font:inherit;font-family:var(--ui);font-size:1rem;padding:.8rem .9rem;border:2px solid var(--rule);border-radius:4px;background:#fff;color:var(--ink);min-width:0}
.band-navy form.signup input[type=email]{border-color:transparent}
form.signup .hp{position:absolute;left:-9999px}
.formmsg{font-family:var(--ui);font-size:.92rem;margin-top:.6rem;min-height:1.4em}
.checks{list-style:none;padding:0;margin:1.5rem 0 0;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:1.5rem 2.5rem}
.checks h3{margin-bottom:.35rem}
.checks p{margin:0;color:var(--muted)}
.teach{display:flex;justify-content:space-between;align-items:center;gap:1.5rem;flex-wrap:wrap}
.teach p{margin:0;max-width:40rem}

/* inner pages */
.pagehead{background:var(--red);color:var(--paper);padding:clamp(2rem,5vw,3.5rem) 0}
.pagehead h1{font-family:var(--display);font-weight:400;text-transform:uppercase;font-size:clamp(2.2rem,6vw,3.6rem);line-height:1;margin:0 0 .4em}
.pagehead p{max-width:40rem;margin:0;font-size:1.15rem}
.content{padding:clamp(2rem,5vw,3.5rem) 0 clamp(3rem,7vw,5rem)}
table.data{border-collapse:collapse;width:100%;font-family:var(--ui);font-size:.88rem}
table.data th,table.data td{text-align:left;padding:.55rem .6rem;border-bottom:1px solid var(--rule);vertical-align:top}
table.data th{font-weight:600;border-bottom:2px solid var(--ink);position:sticky;top:0;background:var(--paper)}
table.data tr.hit td{background:#FFF6CC}
table.data td.num{font-variant-numeric:tabular-nums;white-space:nowrap}
.tablewrap{overflow-x:auto;max-height:70vh;border:1px solid var(--rule)}
.filter{font:inherit;font-family:var(--ui);padding:.65rem .8rem;border:2px solid var(--rule);border-radius:4px;width:100%;max-width:26rem;margin:0 0 1rem}
.status{display:inline-block;padding:.1rem .45rem;border-radius:3px;font-size:.78rem;font-weight:600;white-space:nowrap}
.s-effect{background:#E7EFE3;color:#2C4A22}.s-partial{background:#FBEFD0;color:#6A4A00}.s-blocked{background:var(--navy);color:var(--paper)}
.s-ended,.s-revoked{background:#E8E5DE;color:#4A4539}.s-court{background:var(--hl);color:var(--ink)}
.handout{background:#fff;border:1px solid var(--rule);padding:clamp(1.25rem,4vw,2.5rem);max-width:48rem}
.handout h2{font-size:2rem}
.handout table{border-collapse:collapse;width:100%;font-size:.95rem;margin:.5rem 0 1rem}
.handout th,.handout td{border-bottom:1px solid var(--rule);padding:.4rem .5rem;text-align:left;vertical-align:top}

/* footer */
.foot{background:var(--navy);color:#C9CED8;font-family:var(--ui);font-size:.88rem;padding:2.5rem 0}
.foot .wrap{display:flex;justify-content:space-between;gap:1.5rem;flex-wrap:wrap}
.foot a{color:var(--paper)}
.foot p{margin:0 0 .4rem}

@media (max-width:860px){
  .hero .wrap,.book,.forms{grid-template-columns:1fr}
  .book img{max-width:12rem}
  .chapters,.checks{grid-template-columns:1fr}
  .grid{grid-template-columns:repeat(15,minmax(0,1fr));gap:3px}
}
@media print{
  .mast,.foot,.noprint{display:none}
  body{background:#fff}
  .handout{border:0;padding:0;max-width:none}
  .pagehead{background:none;color:var(--ink);padding:0}
}
@media (prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}}