:root{--blue:#216653;--ink:#203c35;--muted:#50655c;--line:#d0ddd0;--paper:#f8faf5;--yellow:#c8d59b}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:1.5rem}body{margin:0;background:var(--paper);color:var(--ink);font:1.0625rem/1.65 system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif}a{color:var(--blue);text-underline-offset:5px}a:hover{text-decoration-thickness:2px}a:focus-visible,summary:focus-visible{outline:3px solid var(--blue);outline-offset:5px}h1,h2,h3,p{margin-top:0}h1,h2,h3{line-height:1.13;letter-spacing:-.035em}h1{font-size:clamp(2.65rem,5.8vw,5.6rem);font-weight:750;margin-bottom:1.6rem}h2{font-size:clamp(1.65rem,2.8vw,2.6rem);font-weight:700;margin-bottom:1.3rem}h3{font-size:1.25rem;letter-spacing:-.02em}p{margin-bottom:1.15rem}strong{font-weight:700}.top,.nav,main,footer{width:min(1200px,calc(100% - 96px));margin:auto}.top{display:flex;align-items:center;justify-content:space-between;padding:28px 0}.brand{display:flex;align-items:center;gap:12px;text-decoration:none;color:var(--ink);font-size:1rem;font-weight:750;line-height:1.2;letter-spacing:-.03em}.mark{background:var(--blue);color:white;width:46px;height:46px;display:grid;place-items:center;font-size:2rem;line-height:1;padding-bottom:6px}.top-label{font-size:.875rem;color:var(--muted)}.nav{display:flex;gap:30px;border-top:1px solid var(--line);border-bottom:1px solid var(--line);flex-wrap:wrap}.nav a{font-size:.875rem;font-weight:600;color:var(--muted);text-decoration:none;padding:16px 0;border-bottom:3px solid transparent;margin-bottom:-1px}.nav a[aria-current]{color:var(--blue);border-color:var(--blue)}.nav a:hover{color:var(--blue)}.hero{display:grid;grid-template-columns:1.3fr 1fr;gap:70px;padding:76px 0 68px;align-items:center}.eyebrow{font-size:.8125rem;font-weight:750;letter-spacing:.095em;text-transform:uppercase;margin-bottom:1.3rem;color:var(--blue)}.hero h1{font-size:clamp(3rem,5.4vw,5.15rem)}em{font-style:normal;color:var(--blue)}.lead{font-size:1.25rem;line-height:1.65;max-width:720px;color:var(--muted)}.button{display:inline-block;background:var(--blue);color:white;padding:13px 23px;margin-top:10px;font-weight:650;font-size:1rem;text-decoration:none;border:2px solid var(--blue)}.button:hover{background:#164b3d}.hero-note{background:var(--blue);color:white;padding:34px 36px 0;position:relative;box-shadow:12px 12px 0 var(--yellow)}.hero-note>.eyebrow{color:#d2eee5;display:block;margin-bottom:26px}.hero-note>div{padding:21px 0;border-top:1px solid #8bc6b7}.mini{font-size:.8125rem;color:#d2eee5;letter-spacing:.025em}.hero-note p{font-size:clamp(1.3rem,2.05vw,1.9rem);line-height:1.35;font-weight:550;letter-spacing:-.025em;margin:10px 0 4px}.note-bottom{display:block;background:var(--yellow);color:var(--ink);margin:14px -36px 0;padding:16px 36px;font-size:.875rem;font-weight:650}.section{padding:56px 0;border-top:1px solid var(--line)}.section-title{margin-bottom:30px}.section-title .eyebrow{margin-bottom:10px}.two{display:grid;grid-template-columns:1fr 1fr;gap:24px}.card{padding:30px 34px;position:relative;border:1px solid var(--line);border-top:4px solid var(--blue);background:white}.card.yellow{border-top-color:#8b9e57}.number{display:block;font-size:.875rem;color:var(--muted);font-weight:650;margin-bottom:28px}.card h2{font-size:2rem}.card p{color:var(--muted)}.textlink{font-size:.9375rem;font-weight:700}.sources{font-size:.8125rem;color:var(--muted);margin:24px 0 0;line-height:1.8}.sources a{color:var(--muted)}.split{display:grid;grid-template-columns:.8fr 1.2fr;gap:64px}.split h2{font-size:2rem;line-height:1.2}.table-wrap{overflow-x:auto}table{border-collapse:collapse;width:100%;font-size:.875rem;line-height:1.6;margin-top:25px}th,td{text-align:left;vertical-align:top;padding:15px 12px;border-bottom:1px solid var(--line)}thead th{background:#e2f1eb;color:var(--blue)}th:first-child{padding-left:10px}tbody th{font-weight:600}.callout{background:var(--ink);color:white;padding:46px 48px;margin:12px 0 72px}.callout .eyebrow{color:var(--yellow)}.callout p{max-width:680px;color:#d2eee5}.light{background:var(--yellow);color:var(--ink);border-color:var(--yellow)}.light:hover{background:#b8c986}.pagehead{padding:68px 0 48px;border-bottom:1px solid var(--line)}.pagehead h1{font-size:clamp(2.8rem,5vw,4.8rem)}.reading{max-width:780px;margin:0 auto}.reading section{padding:44px 0;border-bottom:1px solid var(--line)}.reading section:last-child{border:0;margin-bottom:48px}.reading h2{font-size:2rem}.reading p{line-height:1.8}.aside{background:#e2f1eb;border-left:4px solid var(--blue);padding:26px 30px;margin:28px 0}.aside h2,.aside h3{font-size:1.3rem;margin-bottom:14px}.aside p:last-child{margin-bottom:0}.steps{padding:0;list-style:none;counter-reset:steps}.steps li{position:relative;counter-increment:steps;padding-left:52px;margin:28px 0}.steps li:before{content:counter(steps,decimal-leading-zero);position:absolute;left:0;top:-2px;color:var(--blue);font-size:1.3rem;font-weight:750}.steps h3{margin-bottom:8px}.steps p{margin:0}.reading .example{background:#edf1dc;padding:30px 32px;border:0;margin:30px -32px}.example .eyebrow{color:#546732}.small{font-size:.875rem;line-height:1.6;color:var(--muted)}.stat-pair{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin:28px 0}.stat-pair div{padding:22px;background:#e2f1eb;display:flex;flex-direction:column}.stat-pair strong{font-size:3.4rem;line-height:1.25;color:var(--blue);letter-spacing:-.06em}.stat-pair span{font-size:.9375rem}.starter{background:#e2f1eb;display:grid;grid-template-columns:1fr 1.2fr;gap:20px 46px;padding:35px;margin:38px 0}.starter h2{font-size:2rem}.starter ol{margin:0;padding-left:22px}.starter li{padding:0 0 15px 8px}.starter li:last-child{padding-bottom:0}.starter .small{grid-column:1/-1;margin:0}.jump{display:flex;flex-wrap:wrap;gap:12px;margin:30px 0 36px}.jump a{padding:8px 16px;border:1px solid var(--line);text-decoration:none;font-size:.9375rem;background:white}.jump a:hover{border-color:var(--blue)}.resources{display:grid;grid-template-columns:1fr 1fr;gap:24px}.resource{background:white;border:1px solid var(--line);padding:28px;display:flex;flex-direction:column}.resource-top{display:flex;align-items:flex-start;flex-direction:column;gap:14px;margin-bottom:22px}.tag{font-size:.8125rem;font-weight:650;padding:4px 10px;background:#e2f1eb;color:var(--blue)}.resource h3{font-size:1.45rem;line-height:1.25}.resource h3 a{color:var(--ink);text-decoration:none}.resource h3 a:hover{text-decoration:underline}.resource p{font-size:1rem}.resource .use{color:var(--muted);font-size:.9375rem}.resource>.textlink{margin-top:auto}.resources+.aside{margin-top:40px}footer{border-top:1px solid var(--line);padding:30px 0 38px;display:flex;align-items:flex-start;justify-content:space-between;gap:30px;margin-top:50px;font-size:.875rem;color:var(--muted)}footer p{margin:0}.footer-brand{font-weight:750;color:var(--ink);text-decoration:none}.skip{position:fixed;top:-100px;left:15px;z-index:10;padding:10px 20px;background:white}.skip:focus{top:10px}@media(max-width:1000px){.top,.nav,main,footer{width:calc(100% - 48px)}.hero{gap:36px}.hero h1{font-size:3.5rem}.hero-note{padding:26px 24px 0}.note-bottom{margin-left:-24px;margin-right:-24px;padding-left:24px;padding-right:24px}.nav{gap:23px}.split{gap:30px;grid-template-columns:1fr}.starter{grid-template-columns:1fr}.hero-note p{font-size:1.5rem}}@media(max-width:700px){.top,.nav,main,footer{width:calc(100% - 36px)}.top{padding:21px 0}.top-label{display:none}.nav{gap:0 23px}.nav a{padding:12px 0;font-size:.875rem}.hero{grid-template-columns:1fr;padding:43px 0 45px;gap:30px}.hero h1{font-size:clamp(2.6rem,10vw,4rem)}.hero-note{margin-right:10px}.lead{font-size:1.125rem}.two,.resources{grid-template-columns:1fr}.section{padding:36px 0}.card{padding:25px}.card h2{font-size:1.8rem}.number{margin-bottom:20px}.callout{padding:28px;margin-bottom:44px}.pagehead{padding:40px 0 30px}.pagehead h1{overflow-wrap:anywhere;font-size:2.8rem}.reading section{padding:30px 0}.reading .example{margin:20px 0;padding:24px}.starter{padding:25px}.resource{padding:24px}.aside{padding:22px}.stat-pair{gap:10px}.stat-pair div{padding:17px}.steps li{padding-left:42px}footer{flex-direction:column;gap:18px}.table-wrap{margin:0 -2px}th,td{padding:12px 8px}.eyebrow{font-size:.75rem}.jump a{font-size:.875rem}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}@media print{.nav,.button,.top-label,.jump{display:none}.top,main,footer{width:100%}.hero,.split,.starter{display:block}.hero-note{box-shadow:none}.reading{max-width:none}.resource,.card{break-inside:avoid}body{font-size:11pt}.pagehead{padding:20px 0}h1,.pagehead h1{font-size:30pt}a{color:inherit}}

/* Grendel: light turquoise, light emerald and light olive; dark shades for readable text. */
:root{--turquoise:#b8e0db;--emerald:#add5bc;--olive:#c8d59b}.hero-note{background:var(--turquoise);color:var(--ink);box-shadow:12px 12px 0 var(--emerald)}.hero-note>.eyebrow,.hero-note .mini{color:#315c51}.hero-note>div{border-top-color:#80b6a9}.card.blue{background:#e2f1eb;border-top-color:#7caf96}.card.yellow{background:#edf1dc;border-top-color:#8b9e57}.tag{background:var(--turquoise)}.starter{background:#e1f1ee}