:root{color-scheme:light;--ink:#182f37;--deep:#11272f;--muted:#4b6269;--paper:#f7f5f0;--white:#fff;--turquoise:#30a6c6;--line:#b8c5c5;--pale:#dfeff2}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--paper);color:var(--ink);font-family:Arial,Helvetica,sans-serif;line-height:1.52}a{color:inherit}button{font:inherit}
.private{background:var(--turquoise);padding:8px 16px;text-align:center;font-size:11px;font-weight:800;text-transform:uppercase;letter-spacing:.08em}.wrap{max-width:1160px;margin:auto;padding:0 28px}.skip{position:absolute;top:-100px;left:10px;background:var(--white);padding:9px;z-index:10}.skip:focus{top:10px}
.top{border-bottom:1px solid var(--line)}.nav{display:flex;justify-content:space-between;align-items:center;gap:20px;padding:21px 0}.brand{text-decoration:none;font-weight:900;letter-spacing:.045em;line-height:1.15}.brand small{display:block;font-size:10px;color:var(--muted);letter-spacing:.11em;margin-top:4px}.links{display:flex;flex-wrap:wrap;gap:20px;align-items:center;font-size:13px;font-weight:800}.links a{text-decoration:none}.links a:hover,.links a:focus{text-decoration:underline;text-decoration-thickness:2px;text-underline-offset:4px}
.eyebrow{font-size:11px;font-weight:900;letter-spacing:.15em;text-transform:uppercase}.hero{display:grid;grid-template-columns:1.1fr .9fr;gap:6vw;align-items:center;padding:64px 0 68px}.hero h1{font-size:clamp(43px,6vw,76px);line-height:.98;letter-spacing:-.06em;margin:15px 0 20px}.hero h1 em{font-style:normal;background:linear-gradient(transparent 74%,var(--turquoise) 74%)}.lead{font-size:clamp(17px,1.6vw,21px);max-width:620px}.actions{display:flex;flex-wrap:wrap;gap:11px;margin-top:29px}.button{display:inline-flex;align-items:center;justify-content:center;min-height:49px;padding:11px 17px;background:var(--turquoise);border:2px solid var(--turquoise);text-decoration:none;font-size:12px;font-weight:900;text-transform:uppercase;letter-spacing:.06em}.button.alt{background:transparent;border-color:var(--ink)}.button:hover,.button:focus{filter:brightness(.94)}
.hero-case{background:var(--deep);color:var(--white);padding:27px;box-shadow:13px 13px 0 var(--turquoise);transform:rotate(1deg)}.hero-case p{font-size:18px;margin:14px 0}.hero-case .question{border-top:1px solid #63808a;padding-top:12px;color:#bde9f3;font-weight:800}.hero-case .eyebrow{color:var(--turquoise)}
.hero-case a{color:var(--white);text-decoration-color:var(--turquoise);text-decoration-thickness:2px;text-underline-offset:4px}.hero-case p+p{border-top:1px solid #63808a;padding-top:14px}.topic-more{display:flex;flex-wrap:wrap;align-items:center;gap:14px 25px;margin-top:29px}.topic-more .eyebrow{width:100%;color:#bde9f3}.topic-more a{font-weight:800;text-underline-offset:4px}
.landing-hero .small-note{font-size:13px;color:var(--muted);margin:15px 0 0}.landing-hero .hero-case{transform:none}.landing-hero .hero-case .question{margin-top:18px}
section.block{padding:66px 0}.block.dark{background:var(--deep);color:var(--white)}.head{max-width:780px;margin-bottom:28px}.head h2{font-size:clamp(31px,4.3vw,51px);line-height:1.05;letter-spacing:-.045em;margin:11px 0 13px}.head p{font-size:17px;margin:0}.columns{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.tile{display:flex;flex-direction:column;min-height:275px;padding:24px;background:var(--white);color:var(--ink);text-decoration:none;border:1px solid var(--line)}.tile:hover,.tile:focus{border-color:var(--ink);box-shadow:6px 6px 0 var(--turquoise)}.tile .eyebrow{color:#217e97}.tile h3{font-size:24px;line-height:1.12;letter-spacing:-.035em;margin:20px 0 9px}.tile p{margin:0 0 18px}.tile .more{margin-top:auto;font-size:12px;font-weight:900;text-transform:uppercase;letter-spacing:.06em;text-decoration:underline;text-underline-offset:3px}
.feature{display:grid;grid-template-columns:1fr 1fr;gap:6vw;align-items:center}.feature h2{font-size:clamp(31px,4vw,51px);line-height:1.04;letter-spacing:-.045em;margin:10px 0 15px}.feature p{font-size:17px}.mini-card{background:var(--white);color:var(--ink);padding:27px;box-shadow:10px 10px 0 var(--turquoise)}.mini-card .row{border-bottom:1px solid var(--line);padding:14px 0}.mini-card .row:last-child{border:0}.mini-card b{display:inline-block;min-width:28px}.split{display:grid;grid-template-columns:1fr 1fr;gap:35px}.product-note{background:var(--white);color:var(--ink);padding:26px;border:1px solid var(--line)}.product-note h3{font-size:27px;line-height:1.1;margin:5px 0 12px}.product-note ul{padding-left:19px}.product-note li{margin:7px 0}.price{display:inline-block;background:var(--turquoise);padding:8px 12px;font-weight:900}
.article{max-width:760px;margin:auto;padding:55px 28px 75px}.article h1{font-size:clamp(38px,5.2vw,62px);line-height:1;letter-spacing:-.055em;margin:15px 0 16px}.article .intro{font-size:20px;color:var(--muted);line-height:1.45;margin-bottom:30px}.article h2{font-size:27px;line-height:1.15;letter-spacing:-.035em;margin:35px 0 12px}.article p,.article li{font-size:17px}.article li{margin:8px 0}.article .example{background:var(--deep);color:var(--white);padding:23px;margin:25px 0}.article .example .eyebrow{color:var(--turquoise)}.article .exercise{background:var(--pale);padding:24px;margin:28px 0}.article .exercise h2{margin-top:0}.article .boundary{border-left:4px solid var(--turquoise);padding:3px 0 3px 17px;margin:30px 0}.article .next{border-top:2px solid var(--ink);margin-top:35px;padding-top:20px}.article .next h2{margin-top:0}.article .source{font-size:12px;color:var(--muted);border-top:1px solid var(--line);padding-top:12px;margin-top:30px}
.article .breadcrumb{font-size:13px;margin:0 0 18px;color:var(--muted)}.breadcrumb a{text-underline-offset:3px}
footer{border-top:1px solid var(--line);padding:29px 0 40px;color:var(--muted);font-size:12px}.foot{display:flex;justify-content:space-between;gap:22px}.foot a{font-weight:700}
@media(max-width:820px){.hero,.feature{grid-template-columns:1fr}.hero{padding:49px 0 59px;gap:30px}.hero-case{max-width:500px;transform:none;margin:0 13px 0 0}.columns{grid-template-columns:1fr 1fr}.split{grid-template-columns:1fr}.feature{gap:35px}}
@media(max-width:590px){.wrap{padding:0 17px}.nav{display:block}.brand{display:block}.links{margin-top:17px;gap:15px}.hero h1{font-size:clamp(40px,10vw,60px)}.columns{grid-template-columns:1fr}.tile{min-height:0}.feature h2{font-size:36px}.actions .button{width:100%}.article{padding:39px 17px 55px}.article p,.article li{font-size:16px}.foot{display:block}}