:root{--bg:#f3f9fe;--surface:#ffffff;--ink:#14304a;--muted:#4a6178;--accent:#c8261f;--accent-ink:#ffffff;--accent2:#f2b705;--line:#d3e5f3;--hero-ink:#14304a;--r:14px;--maxw:1180px;--measure:68ch;--hf:'Varela Round', 'Trebuchet MS', sans-serif;--bf:'Open Sans', 'Segoe UI', Arial, sans-serif}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--ink);font:17px/1.65 var(--bf)}
img{max-width:100%;height:auto;display:block}
a{color:var(--accent);text-underline-offset:.18em}
h1,h2,h3,h4{font-family:var(--hf);line-height:1.18;margin:1.6em 0 .5em;font-weight:400;letter-spacing:0}
h1{font-size:clamp(2rem,5vw,3.4rem);margin-top:0}
h2{font-size:clamp(1.4rem,3vw,2rem)}h3{font-size:1.2rem}
p,ul,ol,table,details{margin:0 0 1.1em}
.wrap{max-width:max(var(--maxw),min(88vw,1760px));margin:0 auto;padding:0 20px}
@media(min-width:1800px){body article.prose>:is(p,ul,ol,h2,h3,h4,blockquote,dl,details,.callout,.disclosure,.table-wrap){max-width:52rem}}
.skip{position:absolute;left:-999px}.skip:focus{left:10px;top:10px;background:var(--surface);padding:8px;z-index:9}
header.site{border-bottom:1px solid var(--line);background:var(--surface)}
header.site .wrap{display:flex;align-items:center;justify-content:space-between;gap:16px;padding-top:14px;padding-bottom:14px;flex-wrap:wrap}
.brand{font-family:var(--hf);font-weight:800;font-size:1.25rem;color:var(--ink);text-decoration:none;display:flex;align-items:center;gap:10px}
.brand svg{flex:none}
nav.main ul{list-style:none;display:flex;flex-wrap:wrap;gap:4px 18px;margin:0;padding:0}
nav.main a{color:var(--ink);text-decoration:none;font-size:.95rem;padding:4px 0;border-bottom:2px solid transparent}
nav.main a[aria-current]{border-color:var(--accent)}
.menu-btn{display:none}
@media(max-width:760px){.menu-btn{display:inline-block;background:none;border:1px solid var(--line);color:var(--ink);border-radius:var(--r);padding:6px 12px;font:inherit}
nav.main{width:100%;display:none}nav.main.open{display:block}nav.main ul{flex-direction:column;gap:6px}}
.hero{position:relative;overflow:hidden}
.hero .wrap{padding-top:56px;padding-bottom:56px}
.hero .lead{font-size:1.18rem;color:var(--muted);max-width:60ch}
.hero.full{color:var(--hero-ink);min-height:440px;display:flex;align-items:flex-end}
.hero.full img.bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.hero.full::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(0,0,0,.05),rgba(0,0,0,.62))}
.hero.full .wrap{position:relative;z-index:1;width:100%}.hero.full .lead{color:inherit;opacity:.92}
.hero.split .wrap{display:grid;grid-template-columns:1.1fr .9fr;gap:40px;align-items:center}
.hero.split img{border-radius:var(--r);aspect-ratio:4/3;object-fit:cover;width:100%}
.hero.banner img{width:100%;max-height:380px;object-fit:cover;border-radius:var(--r);margin-top:28px}
.hero.plain{background:var(--surface);border-bottom:1px solid var(--line)}
@media(max-width:760px){.hero.split .wrap{grid-template-columns:1fr}.hero.full{min-height:340px}.hero .wrap{padding-top:36px;padding-bottom:36px}}
.page{display:grid;gap:48px;padding-top:40px;padding-bottom:64px}
.page.toc-layout{grid-template-columns:220px minmax(0,1fr)}
.page.toc-layout .toc{position:sticky;top:20px;align-self:start;font-size:.92rem;border-left:3px solid var(--accent);padding-left:14px}
.page.toc-layout .toc ul{list-style:none;padding:0;margin:0}.page.toc-layout .toc li{margin:.35em 0}
.page.toc-layout .toc a{color:var(--muted);text-decoration:none}
@media(max-width:860px){.page.toc-layout{grid-template-columns:1fr}.page.toc-layout .toc{position:static}}
/* Content uses the full container width (cards, grids, tables); only running text keeps a readable measure. */
article.prose{max-width:none;min-width:0}
article.prose>:is(p,ul,ol,h2,h3,h4,blockquote,dl,details,.callout,.disclosure,.table-wrap){max-width:47.5rem;margin-left:auto;margin-right:auto}
.page.toc-layout article.prose>*{margin-left:0;margin-right:0}
/* A heading that introduces a full-width block (cards, grid, table) lines up with that block, not the text column. */
body article.prose>:is(h2,h3):has(+ :is(.cards,nav,div,table,section,ul.grid)){max-width:none;margin-left:0;margin-right:0}
.page.wide article.prose>*{max-width:none}
.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:18px;margin:0 0 1.4em}
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:20px}
.card h3{margin-top:0}.card p:last-child{margin-bottom:0}
a.card{display:block;color:var(--ink);text-decoration:none}a.card:hover{border-color:var(--accent)}
.callout{border-left:4px solid var(--accent2);background:var(--surface);padding:14px 18px;border-radius:0 var(--r) var(--r) 0;margin:0 0 1.2em}
.table-wrap{overflow-x:auto;margin:0 0 1.2em}
table{border-collapse:collapse;width:100%;font-size:.95rem}
th,td{border-bottom:1px solid var(--line);padding:9px 10px;text-align:left;vertical-align:top}
th{font-family:var(--hf);background:var(--surface)}
details{border:1px solid var(--line);border-radius:var(--r);padding:10px 16px;background:var(--surface)}
summary{cursor:pointer;font-weight:600}
.steps{counter-reset:s;list-style:none;padding:0}.steps li{counter-increment:s;position:relative;padding-left:44px;margin-bottom:1em}
.steps li::before{content:counter(s);position:absolute;left:0;top:0;width:30px;height:30px;border-radius:50%;background:var(--accent);color:var(--accent-ink);display:grid;place-items:center;font-weight:700;font-size:.9rem}
.btn{display:inline-block;background:var(--accent);color:var(--accent-ink);padding:10px 18px;border-radius:var(--r);text-decoration:none;font-weight:600;border:0;font:inherit;cursor:pointer}
.aff{border:1px dashed var(--accent);border-radius:var(--r);padding:16px 18px;margin:0 0 1.2em;background:var(--surface)}
.aff .tag{font-size:.75rem;text-transform:uppercase;letter-spacing:.08em;color:var(--muted)}
.disclosure{font-size:.88rem;color:var(--muted);border:1px solid var(--line);border-radius:var(--r);padding:10px 14px;margin:0 0 1.6em}
.meta{font-size:.88rem;color:var(--muted)}
dl dt{font-family:var(--hf);font-weight:700;margin-top:1em}dl dd{margin:.2em 0 0 0;color:var(--ink)}
footer.site{border-top:1px solid var(--line);background:var(--surface);font-size:.92rem;color:var(--muted)}
footer.site .wrap{padding-top:32px;padding-bottom:32px;display:grid;gap:18px}
footer.site ul{list-style:none;padding:0;margin:0;display:flex;flex-wrap:wrap;gap:6px 18px}
footer.site a{color:var(--muted)}
.wk header.site{background:#fff;border-bottom:0;position:relative}
.wk header.site::after{content:"";display:block;height:6px;background:linear-gradient(90deg,#d62f2a 0 33.3%,#f2b705 33.3% 66.6%,#2f8fd8 66.6%)}
.wk header.site .wrap{padding-top:14px;padding-bottom:14px}
.wk .brand{font-weight:400;font-size:1.4rem;color:#14304a;letter-spacing:0}
.wk nav.main ul{gap:6px}
.wk nav.main a{display:inline-block;border:0;border-radius:999px;padding:6px 14px;font-weight:600;font-size:.92rem;color:#1e4a70}
.wk nav.main a:hover{background:#e3f1fc}
.wk nav.main a[aria-current]{background:#1c6aae;color:#fff}
.wk .menu-btn{border-radius:999px;border-color:#b9d6ec}
.wk h1,.wk h2,.wk h3{color:#12324f}
.wk .hero{background:radial-gradient(ellipse 30% 18% at 12% 30%,rgba(255,255,255,.85),transparent 70%),radial-gradient(ellipse 26% 14% at 82% 22%,rgba(255,255,255,.8),transparent 70%),linear-gradient(180deg,#bfe2fa 0%,#e4f3fd 70%,#f3f9fe 100%);border-bottom:0}
.wk .hero .wrap{padding-top:60px;padding-bottom:64px}
.wk .hero .kicker{display:inline-flex;align-items:center;gap:8px;background:#fff;color:#c8261f;font-weight:700;font-size:.8rem;letter-spacing:.08em;text-transform:uppercase;padding:5px 14px 5px 10px;border-radius:999px;box-shadow:0 2px 0 #f2b705}
.wk .hero .kicker::before{content:"";width:10px;height:10px;background:#d62f2a;transform:rotate(45deg);box-shadow:inset -5px -5px 0 #f2b705}
.wk .hero h1{line-height:1.12;max-width:20ch}
.wk .hero .lead{color:#2f4a63;font-size:1.16rem}
.wk .hero.split img{border-radius:22px;aspect-ratio:3/2;box-shadow:0 0 0 6px #fff,12px 14px 0 6px #f2b705}
.wk.p-index .hero.plain .wrap{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);grid-template-rows:1fr auto auto auto 1fr;column-gap:56px}
.wk.p-index .hero.plain .wrap>.kicker{grid-column:1;grid-row:2;justify-self:start}
.wk.p-index .hero.plain .wrap>h1{grid-column:1;grid-row:3}
.wk.p-index .hero.plain .wrap>.lead{grid-column:1;grid-row:4}
.wk.p-index .hero.plain .wrap>.sky{grid-column:2;grid-row:1 / -1}
.wk .sky{border-radius:22px;overflow:hidden;box-shadow:0 0 0 6px #fff,12px 14px 0 6px #f2b705;aspect-ratio:4/3}
.wk .sky svg{display:block;width:100%;height:100%}
@media(max-width:860px){.wk.p-index .hero.plain .wrap{grid-template-columns:1fr;grid-template-rows:none}.wk.p-index .hero.plain .wrap>*{grid-column:1 !important;grid-row:auto !important}.wk.p-index .hero.plain .wrap>.sky{margin-top:24px}}
.wk .flock{display:none}
@media(min-width:1000px){.wk:not(.p-index) .hero.plain .wrap{display:grid;grid-template-columns:minmax(0,1.2fr) minmax(0,.8fr);column-gap:48px}
.wk:not(.p-index) .hero.plain .wrap>*{grid-column:1}
.wk:not(.p-index) .hero.plain .wrap>.kicker{justify-self:start}
.wk:not(.p-index) .hero.plain .wrap>.flock{display:block;grid-column:2;grid-row:1 / span 3;position:relative;min-height:260px}
.wk .flock span{position:absolute;transform:rotate(var(--r))}
.wk .flock span i{position:absolute;left:50%;top:calc(var(--s) * .85);width:1.5px;height:220px;background:linear-gradient(#14304a,transparent);opacity:.45;transform-origin:top;transform:rotate(18deg)}
.wk .flock .ks{width:var(--s);height:var(--s);filter:drop-shadow(0 6px 8px rgba(20,48,74,.18))}}
@media(min-width:1800px){.wk .flock .ks{width:calc(var(--s) * 1.3);height:calc(var(--s) * 1.3)}}
.wk .prose h2{position:relative;padding-left:30px}
.wk .prose h2::before{content:"";position:absolute;left:2px;top:.36em;width:15px;height:15px;background:#d62f2a;transform:rotate(45deg);box-shadow:inset -7px -7px 0 #f2b705}
.wk .cards{gap:20px}
.wk .card{position:relative;border:1px solid var(--line);border-radius:18px;background:#fff;padding:22px 22px 20px;overflow:hidden}
.wk .card::before{content:"";position:absolute;right:-18px;top:-18px;width:44px;height:44px;background:#f2b705;transform:rotate(45deg)}
.wk .cards .card:nth-child(3n+2)::before{background:#d62f2a}.wk .cards .card:nth-child(3n)::before{background:#2f8fd8}
.wk a.card{transition:transform .15s,box-shadow .15s}
.wk a.card:hover{transform:translateY(-3px);box-shadow:0 12px 24px rgba(20,48,74,.12);border-color:#9fcbec}
.wk .callout{background:#fff8e1;border-left:0;border:1px solid #f3dc8f;border-radius:16px;padding:16px 20px}
.wk .callout::before{content:"Good to know";display:block;font-family:var(--hf);color:#8a5a00;margin-bottom:.2em}
.wk .callout.warn{background:#fdecea;border-color:#f1b8b3}
.wk .callout.warn::before{content:"Safety first";color:#a61d17}
.wk th{background:#1c6aae;color:#fff;font-family:var(--bf);font-weight:700;font-size:.82rem;text-transform:uppercase;letter-spacing:.05em}
.wk .table-wrap{border:1px solid var(--line);border-radius:14px;background:#fff}
.wk tbody tr:nth-child(even) td{background:#f5fafe}
.wk details{border-radius:14px;border-color:#cfe2f1;background:#fff}
.wk summary{color:#12324f}
.wk .steps li::before{background:#d62f2a;border-radius:6px;transform:rotate(45deg);font-family:var(--hf);font-weight:400}
.wk .steps li::before{content:""}
.wk .steps li::after{content:counter(s);position:absolute;left:0;top:0;width:30px;height:30px;display:grid;place-items:center;color:#fff;font-weight:700;font-size:.9rem}
.wk .ph{margin:0 0 1.6em}.wk .ph img{border-radius:18px;width:100%;max-height:460px;object-fit:cover}
.wk .ph figcaption{font-size:.88rem;color:var(--muted);margin-top:.5em}
body.wk article.prose>.ph{max-width:none}
.wk footer.site{background:#12324f;color:#cfe1f0;border-top:0}
.wk footer.site::before{content:"";display:block;height:6px;background:linear-gradient(90deg,#2f8fd8 0 33.3%,#f2b705 33.3% 66.6%,#d62f2a 66.6%)}
.wk footer.site a{color:#ffd65a}
.wk .vh{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
/* Wind ladder */
.wk .ladder{margin:0 0 2em;background:#fff;border:1px solid var(--line);border-radius:20px;padding:18px 18px 10px;box-shadow:0 2px 0 #d3e5f3}
.wk .ladder .lg{display:flex;flex-wrap:wrap;gap:8px 16px;font-size:.84rem;color:var(--muted);margin:0 0 12px}
.wk .ladder .lg span{display:inline-flex;align-items:center;gap:6px}
.wk .ladder .lg span::before{content:"";width:14px;height:14px;border-radius:4px}
.wk .lg .r2::before{background:#d62f2a}.wk .lg .r1::before{background:#f2b705}.wk .lg .r0::before{background:#e4edf4;border:1px solid #c6d6e3}
.wk .lg .band::before{background:#e3f1fc;border:1px solid #9fcbec}
.wk .ladder ol{list-style:none;margin:0;padding:0;border-left:6px solid #14304a;border-right:6px solid #14304a;border-radius:4px}
.wk .rung{display:grid;grid-template-columns:120px minmax(0,1.1fr) minmax(0,1.6fr);gap:18px;align-items:center;padding:14px 16px;border-bottom:5px solid #14304a}
.wk .rung:first-child{border-top:5px solid #14304a}
.wk .rung.fly{background:#e3f1fc}
.wk .force{display:flex;align-items:center;gap:12px}
.wk .fn{font-family:var(--hf);font-size:2rem;line-height:1;width:44px;height:44px;display:grid;place-items:center;border-radius:50%;background:#14304a;color:#fff}
.wk .rung.fly .fn{background:#2f8fd8}
.wk .sock{position:relative;width:54px;height:44px;border-left:3px solid #6b7c8c}
.wk .sock i{position:absolute;left:0;top:4px;width:46px;height:14px;transform-origin:0 50%;transform:rotate(var(--a));clip-path:polygon(0 0,100% 22%,100% 78%,0 100%);background:repeating-linear-gradient(90deg,#d62f2a 0 9.2px,#fff 9.2px 18.4px);filter:drop-shadow(0 1px 0 #8a9bab) drop-shadow(0 -1px 0 #8a9bab)}
.wk .what p{margin:0}
.wk .bn{font-family:var(--hf);font-size:1.12rem;color:#12324f}
.wk .mph{display:block;font-family:var(--bf);font-size:.8rem;font-weight:700;color:#c8261f;letter-spacing:.02em}
.wk .sign{font-size:.93rem;margin-top:.2em !important}
.wk .fl{font-size:.88rem;color:var(--muted);font-style:italic}
.wk .chips{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;gap:6px}
.wk .chips li{display:inline-flex;align-items:center;gap:5px;padding:4px 10px 4px 6px;border-radius:999px;font-size:.8rem;font-weight:600;line-height:1.2}
.wk .chips .r2{background:#d62f2a;color:#fff}
.wk .chips .r1{background:#f2b705;color:#14304a}
.wk .chips .r0{background:#eef3f7;color:#566677;text-decoration:line-through;text-decoration-color:rgba(125,141,156,.6)}
.wk .chips .r0 .ks{opacity:.35}
.wk .chips .r2 .ks polygon,.wk .chips .r2 .ks rect,.wk .chips .r2 .ks path[fill]{fill:#fff}
.wk .chips .r1 .ks polygon,.wk .chips .r1 .ks rect,.wk .chips .r1 .ks path[fill]{fill:#14304a}
.wk .chips .r0 .ks polygon,.wk .chips .r0 .ks rect,.wk .chips .r0 .ks path[fill]{fill:#7d8d9c}
.wk .lnote{font-size:.84rem;color:var(--muted);margin:.9em 0 .2em}
/* Kite cards */
.wk .kcs{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:20px;margin:0 0 1.8em}
.wk .kc{position:relative;background:#fff;border:1px solid var(--line);border-radius:20px;padding:20px 20px 16px;display:flex;flex-direction:column}
.wk .kc-art{width:96px;height:96px;display:grid;place-items:center;border-radius:50%;background:radial-gradient(circle at 40% 35%,#ffffff,#d6ecfb 70%);margin:0 0 10px}
.wk .kc h3{margin:0 0 .3em;font-size:1.3rem}
.wk .kc>p{font-size:.95rem;margin:0 0 .8em}
.wk .kc dl{margin:0 0 .8em;display:grid;gap:6px;flex:1}
.wk .kc dl div{display:grid;grid-template-columns:76px 1fr;gap:8px;align-items:baseline;border-top:1px dashed #d3e5f3;padding-top:6px}
.wk .kc dt{margin:0;font-family:var(--bf);font-size:.72rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--muted)}
.wk .kc dd{font-size:.9rem;margin:0}
.wk .meter{display:grid;grid-template-columns:repeat(8,1fr);gap:3px;margin:0}
.wk .meter i{height:8px;border-radius:3px;background:#e4edf4}
.wk .meter i.r1{background:#f2b705}.wk .meter i.r2{background:#d62f2a}
@media(min-width:1800px){.wk .kcs{grid-template-columns:repeat(auto-fill,minmax(300px,1fr))}.wk .rung{grid-template-columns:140px minmax(0,1fr) minmax(0,1.8fr)}}
@media(max-width:900px){.wk .rung{grid-template-columns:96px minmax(0,1fr)}.wk .rung .chips{grid-column:1 / -1}.wk .fn{width:38px;height:38px;font-size:1.6rem}.wk .sock{width:44px}.wk .sock i{width:38px}}
@media(max-width:520px){.wk .ladder{padding:12px 10px 6px}.wk .rung{padding:12px 10px;gap:10px}.wk .chips li{font-size:.74rem}}