/* The First Semester - free web edition
   elevatemydorm.com/book/  ·  no frameworks, no build step */

:root{
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html[data-theme="dark"]{
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.wrap{max-width:1160px;margin:0 auto;padding:0 20px}
img{max-width:100%;height:auto}
a{color:var(--teal)}

/* ---------------------------------------------------------------- header */
header.site{position:sticky;top:0;z-index:40;background:var(--bg);border-bottom:1px solid var(--line)}
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/* ---------------------------------------------------------------- layout */
.main{display:grid;grid-template-columns:288px 1fr;gap:44px;align-items:start;padding-bottom:60px}
.reader{min-width:0;max-width:44rem}

/* ---------------------------------------------------------------- contents */
.toc{position:sticky;top:74px;max-height:calc(100vh - 96px);overflow-y:auto;
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.tocinner{padding:18px}
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article li{margin-bottom:.6em}
article u{text-decoration:none;box-shadow:inset 0 -.45em 0 var(--box);font-weight:600}
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/* ---------------------------------------------------------------- chapter nav */
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aside.cta{margin-top:40px;padding:22px 24px;background:var(--panel);border:1px solid var(--line);
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/* ---------------------------------------------------------------- worksheets */
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.sheethead{border-bottom:2px solid var(--teal);padding-bottom:8px;margin-bottom:1.4em}
.sheethead h2{margin:0;color:var(--ink);font-size:1.5rem}
.sheethead .part{margin:0 0 4px}

/* ---------------------------------------------------------------- footer */
footer.site{border-top:1px solid var(--line);background:var(--panel);padding:26px 0 42px;
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footer.site a{color:var(--teal)}
footer .fine{font-size:.74rem;line-height:1.55;max-width:62ch}

/* ---------------------------------------------------------------- responsive */
@media (max-width:860px){
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  .main{grid-template-columns:1fr;gap:0}
  .navbtn{display:block}
  .booklink{display:none}
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}

/* ================================================================ PRINT
   The book text is free to read but is not offered as a print-out.
   The three worksheets are - that is what body.sheets unlocks below.
   =================================================================== */
.printnotice{display:none}

@media print{
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  body>.printnotice h1{font-size:24pt;margin-bottom:.6em}
  body>.printnotice p{font-size:11pt}

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  body.sheets article p{margin-bottom:.7em}
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  body.sheets article h2{color:#000}
  body.sheets{font-size:11pt}
  @page{margin:.7in}
}