@font-face{font-family:Inter;src:url('assets/inter-regular.ttf') format('truetype');font-weight:400;font-display:swap}
@font-face{font-family:Inter;src:url('assets/inter-bold.ttf') format('truetype');font-weight:600 900;font-display:swap}
@font-face{font-family:'Space Grotesk';src:url('assets/space-grotesk-bold.ttf') format('truetype');font-weight:600 900;font-display:swap}
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minmax(0,1fr);max-width:1220px;margin:auto;align-items:start}.reader-sidebar{position:sticky;top:0;max-height:100vh;overflow:auto;border-right:1px solid var(--line);padding:32px 24px 36px 0}.reader-sidebar summary{font-family:var(--display);font-size:20px;padding:12px 0;cursor:pointer}.reader-sidebar .level{font-size:13px;color:var(--copy);margin-bottom:6px}.reader-sidebar nav{display:grid;gap:6px;margin:24px 0}.reader-sidebar nav a{padding:12px;border-radius:9px;display:flex;gap:12px;text-decoration:none;color:var(--copy);font-size:14px;line-height:1.5;min-height:48px}.reader-sidebar nav a[aria-current=step]{background:var(--ink);color:var(--paper)}.reader-sidebar nav a .status-mark{color:var(--cyan-dark);flex-shrink:0;min-width:21px}.reader-sidebar nav a[aria-current=step] .status-mark{color:var(--cyan)}.reader-sidebar .back-home{font-size:13px;min-height:44px;display:inline-flex;align-items:center}.reader-sidebar .storage-note{line-height:1.5}.reader{padding:44px 0 60px 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@media(min-width:1250px){.reader-layout{width:calc(100% - 64px)}}
@media(max-width:1000px){.hero-grid{gap:36px}.reader-layout{padding:0 28px;grid-template-columns:245px minmax(0,1fr)}.reader{padding-left:34px}.reader-sidebar{padding-right:18px}.site-header nav{gap:16px}.hero{padding:48px 0}.practice{padding:23px}.learning-goal{display:block}.learning-goal strong{display:block;margin-bottom:8px}}
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@media print{.site-header,.reader-sidebar,.site-footer,.pager,.actions,.quiz,.finish{display:none}.reader-layout{display:block}.reader{padding:0}.practice{break-inside:avoid}.reader h1{font-size:28px}}
h1[tabindex="-1"]:focus{outline:none}.skip:not(:focus){transform:translateY(-200%)}
.within-nav{border-bottom:1px solid var(--line);padding-bottom:24px;margin-bottom:36px;display:grid;gap:6px}.within-nav p{font-weight:700;margin-bottom:4px}.within-nav button{background:transparent;color:var(--cyan-dark);text-align:left;text-decoration:underline;text-underline-offset:4px;min-height:44px;padding:6px 0;line-height:1.5}.citations{font-size:12px;color:var(--copy);line-height:1.7;margin-top:20px}.citations:empty{display:none}.provider,.case{border:1px solid var(--line);border-radius:12px;padding:18px 22px;margin:16px 0}.provider summary,.case summary{color:var(--ink);font-family:var(--display);font-size:22px;line-height:1.35}.provider summary span{display:block;font-family:var(--font);font-size:13px;font-weight:400;color:var(--copy);margin:6px 0 10px}.provider[open] summary,.case[open] summary{margin-bottom:24px}.provider h3,.case h3{font-size:20px;margin-top:26px}.case-area{display:block;color:var(--cyan-dark);font-family:var(--font);font-size:12px;letter-spacing:0;margin-bottom:10px}.case-data{background:var(--ground);padding:18px;border-radius:8px}.table-wrap{max-width:100%;overflow-x:auto;margin:22px 0;border:1px solid var(--line);border-radius:9px}.table-wrap table{border-collapse:collapse;min-width:540px;width:100%;font-size:14px;line-height:1.6}.table-wrap th,.table-wrap td{text-align:left;padding:13px;vertical-align:top;border-bottom:1px solid var(--line);overflow-wrap:anywhere}.table-wrap th{background:var(--ink);color:var(--paper);font-weight:700}.table-wrap tr:last-child td{border-bottom:0}.table-wrap td:first-child{font-weight:700}.table-wrap tr:nth-child(even){background:var(--ground)}.tool-options{flex-wrap:wrap}.exercise-question{padding:0;border:0;margin:26px 0}.exercise-question legend{font-weight:700;margin-bottom:16px;line-height:1.6}.practice .btn{margin-top:12px}.practice select{width:100%;min-height:48px;border:1px solid var(--copy);border-radius:8px;padding:12px;background:var(--paper);color:var(--ink);font:inherit}.metric-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}.metric-grid>div{border-top:3px solid var(--cyan);background:var(--paper);padding:18px}.metric-grid strong{display:block;font-family:var(--display);font-size:28px}.metric-grid span{font-size:13px;color:var(--copy)}.measurement{margin-top:30px}.edition{margin-top:24px;color:var(--copy);font-size:13px}.resources .path-label,.complete-screen .path-label{color:var(--cyan-dark)}.reading-section[tabindex="-1"]:focus,.practice[tabindex="-1"]:focus{outline:2px solid var(--cyan-dark);outline-offset:6px}select:focus-visible,.table-wrap:focus-visible{outline:3px solid var(--blue);outline-offset:3px}
@media(max-width:760px){.provider,.case{padding:16px}.provider summary,.case summary{font-size:21px}.metric-grid{grid-template-columns:1fr}.tool-options .btn{flex:1 1 40%}.within-nav button{font-size:14px}.table-wrap table{min-width:480px}}
@media(max-width:760px){.table-wrap table{min-width:0}.table-wrap thead{position:absolute;width:1px;height:1px;overflow:hidden;clip-path:inset(50%)}.table-wrap tr{display:block;border-bottom:1px solid var(--line);padding:10px 0}.table-wrap tr:last-child{border:0}.table-wrap td{display:block;border:0;padding:5px 13px}.table-wrap td::before{content:attr(data-label);display:block;font-size:11px;font-weight:700;color:var(--cyan-dark)}.table-wrap td:first-child{font-size:16px}}
