:root{color-scheme:dark;--bg:#0b132b;--surface:#101e2c;--text:#f1f5f6;--muted:#afc0c9;--line:#314552;--accent:#ffc35a;--teal:#83cec4;--soft:#132b35;--header:#0b132bef;font-family:Inter,system-ui,-apple-system,"Segoe UI",sans-serif;font-synthesis:none}
*{box-sizing:border-box;letter-spacing:0}html{scroll-behavior:smooth;scroll-padding-top:100px}body{margin:0;background:var(--bg);color:var(--text);font-size:17px;line-height:1.7}html[data-theme=light]{color-scheme:light;--bg:#f4f7f8;--surface:#fff;--text:#112b37;--muted:#4b6572;--line:#bacdd4;--accent:#845400;--teal:#096c69;--soft:#e2eef0;--header:#f4f7f8ef}a{color:inherit;text-underline-offset:5px}button,input,select{font:inherit}button,a,input,select,summary{-webkit-tap-highlight-color:transparent}button,select,summary{cursor:pointer}:focus-visible{outline:3px solid var(--teal);outline-offset:5px}p{margin:0 0 22px}h1,h2,h3{line-height:1.12;margin:0 0 24px;font-weight:650;overflow-wrap:anywhere}h1{font-size:76px}h2{font-size:48px;max-width:900px}h3{font-size:26px}small{font-size:13px;color:var(--muted)}img{max-width:100%;object-fit:contain}section,article,div{min-width:0}[hidden]{display:none!important}.skip{position:fixed;top:-100px;left:12px;z-index:10;background:var(--text);color:var(--bg);padding:12px}.skip:focus{top:10px}
.site-header{display:flex;align-items:center;justify-content:space-between;gap:24px;padding:17px max(24px,calc((100% - 1160px)/2));position:sticky;top:0;z-index:5;background:var(--header);border-bottom:1px solid var(--line)}.brand{display:flex;align-items:center;gap:12px;text-decoration:none;font-size:17px;font-weight:650;white-space:nowrap}.brand small{display:block;font-weight:400;font-size:11px}.site-header nav{display:flex;gap:26px;font-size:14px}.site-header nav a{text-decoration:none}.site-header nav a:hover{color:var(--accent)}.theme-switch{display:flex;align-items:center;gap:7px;font-size:12px;cursor:pointer}.theme-switch input{accent-color:var(--teal);width:17px;height:17px;flex:none}
.hero{height:min(780px,calc(100svh - 130px));min-height:610px;position:relative;overflow:hidden;border-bottom:1px solid var(--line);isolation:isolate}.hero canvas{position:absolute;inset:0;width:100%;height:100%;z-index:-1}.hero-copy{position:relative;text-align:center;padding:34px 24px 0;max-width:1000px;margin:auto}.eyebrow{text-transform:uppercase;font-size:12px;font-weight:650;color:var(--accent);margin-bottom:20px}.hero .eyebrow{margin-bottom:10px}.hero h1{margin-bottom:15px}.hero-line{font-size:24px;line-height:1.35;margin-bottom:12px}.hero-sub{font-size:16px;color:var(--muted);line-height:1.6;margin-bottom:20px}.actions{display:flex;gap:12px;justify-content:center;flex-wrap:wrap}.button{display:inline-flex;align-items:center;justify-content:center;gap:18px;min-height:46px;padding:10px 22px;border-radius:5px;text-decoration:none;border:1px solid var(--line);font-size:14px;font-weight:600;line-height:1.4;text-align:center;transition:background .16s,color .16s}.button.primary{background:#ffc35a;color:#162531;border-color:#ffc35a}.button.primary:hover{background:#ffda96}.button.secondary{background:var(--surface);color:var(--text)}.button.secondary:hover{border-color:var(--teal)}.hero-foot{position:absolute;bottom:12px;left:28px;right:28px;display:flex;justify-content:space-between;gap:16px;font-size:11px;color:var(--muted);margin:0}
.band{padding:90px max(24px,calc((100% - 1060px)/2));border-bottom:1px solid var(--line);scroll-margin-top:10px}.intro p:not(.eyebrow){max-width:880px}.lead{font-size:24px;line-height:1.55;max-width:850px}.three-pillars{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:36px;margin:52px 0 30px}.three-pillars article{border-top:1px solid var(--line);padding-top:20px}.three-pillars span{color:var(--teal);font-size:13px}.three-pillars h3{margin:10px 0}.three-pillars p{font-size:16px;color:var(--muted)}.conclusion{color:var(--teal);font-size:22px}.chapter:nth-child(even){background:var(--soft)}.chapter-body{display:grid;grid-template-columns:minmax(0,1.12fr) minmax(0,1fr);gap:55px}.chapter-copy p{color:var(--muted)}.chapter-copy p:first-child{color:var(--text);font-size:21px}.chapter-copy strong{color:var(--text)}.chapter-side{border-left:1px solid var(--line);padding-left:34px}.chapter-side h3{font-size:23px}.chapter-side ul{padding-left:20px;color:var(--muted)}.chapter-side li{margin-bottom:15px}.chapter-link{color:var(--teal);display:inline-block;margin-top:12px;font-size:15px}.wide-quote{font-size:31px;line-height:1.4;color:var(--teal);margin:30px 0 0;max-width:860px}.prose-columns{display:grid;grid-template-columns:1fr 1fr;gap:44px}.prose-columns p{color:var(--muted)}
.year-tool{margin-top:38px;border-top:1px solid var(--line);padding-top:28px;display:grid;grid-template-columns:1fr 1fr;gap:32px;align-items:center}.year-tool canvas{display:block;width:100%;aspect-ratio:1}.year-copy label{display:block;font-size:14px;color:var(--muted)}.year-copy input{width:100%;accent-color:var(--accent)}.year-copy output{display:block;font-size:34px;color:var(--accent);margin:12px 0}.year-copy p{font-size:15px}.year-copy button{margin-bottom:15px}.cycle-stages{display:flex;gap:0;border-block:1px solid var(--line);margin:35px 0 22px}.cycle-stages button{flex:1;background:transparent;color:var(--muted);border:0;border-bottom:3px solid transparent;padding:18px 10px;font-size:15px}.cycle-stages button[aria-selected=true]{color:var(--accent);border-bottom-color:var(--accent)}.cycle-stages small{display:block}.stage-body{max-width:800px;min-height:180px}.stage-body h3{font-size:30px}.stage-body p{color:var(--muted)}.day-picker{display:flex;align-items:center;gap:18px;margin:20px 0}.day-picker input{flex:1;accent-color:var(--accent)}.day-picker output{width:80px;font-variant-numeric:tabular-nums}.day-reading{border-left:3px solid var(--teal);padding:15px 25px;margin-top:20px}.day-reading p:last-child{margin:0}.tree-season{display:flex;align-items:center;gap:30px;margin-top:30px}.tree-season img{width:140px;height:140px;background:white;border-radius:50%;padding:6px;flex:none}.tree-season select{width:100%;padding:12px;border:1px solid var(--line);border-radius:5px;background:var(--surface);color:var(--text)}.tree-year{display:grid;grid-template-columns:repeat(6,minmax(0,1fr));gap:30px 16px;margin:40px 0}.tree-year figure{margin:0;text-align:center}.tree-year img{width:88px;height:88px;background:white;border-radius:50%;padding:4px}.tree-year figcaption{font-size:13px;margin-top:10px;line-height:1.5;overflow-wrap:anywhere}.tree-year small{display:block}.example-label{font-size:13px;color:var(--muted)}
.guide-layout{display:grid;grid-template-columns:240px minmax(0,1fr);gap:40px;margin-top:38px}.guide-layout nav{border-top:1px solid var(--line);max-height:580px;overflow:auto;scrollbar-width:thin}.guide-layout nav button{display:block;width:100%;text-align:left;color:var(--muted);background:none;border:0;border-bottom:1px solid var(--line);padding:12px;font-size:14px}.guide-layout nav button[aria-current=true]{border-left:3px solid var(--accent);color:var(--text);background:var(--soft)}#screenGuide h3{font-size:34px}#screenGuide h4{font-size:14px;color:var(--teal);margin:22px 0 8px}#screenGuide p,#screenGuide li{font-size:16px;color:var(--muted)}#screenGuide ol{padding-left:22px}#screenGuide .actions{justify-content:flex-start}#screenGuide .guide-question{font-size:22px;color:var(--text)}#previewHost{margin-top:32px}.preview-heading{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:10px}#appPreview{display:block;width:100%;height:700px;border:1px solid var(--line);border-radius:6px;background:var(--bg)}
details{border-block-end:1px solid var(--line);padding:20px 0;margin-top:20px}summary{font-size:17px;color:var(--teal);padding:8px 0}details p,details li{font-size:15px;color:var(--muted)}details p:first-of-type{margin-top:15px}details .hash{display:block;overflow-wrap:anywhere;color:var(--muted);font-size:12px}.start-section{background:var(--soft)}.start-options{display:grid;grid-template-columns:1fr 1fr;gap:55px;margin-top:46px}.start-options article{border-top:1px solid var(--line);padding-top:24px}.option-number{font-size:13px;color:var(--teal)}.start-options h3{margin:15px 0}.start-options p{font-size:16px}.start-options small{display:block;margin-top:14px}.feedback{border-top:1px solid var(--line);margin-top:45px;padding-top:35px;max-width:850px}.feedback p{color:var(--muted)}.feedback a{color:var(--accent);overflow-wrap:anywhere}.author-words{font-size:20px;max-width:850px}.author-words p:nth-child(2){font-size:17px;color:var(--muted)}.author-section>a{color:var(--teal);font-size:14px}.closing{text-align:center;background:var(--soft)}.closing h2{font-size:65px;margin:15px auto 25px;color:var(--accent)}.closing p{font-size:25px;line-height:1.5;max-width:680px;margin:0 auto 25px}.closing p:last-of-type{font-size:20px;color:var(--muted)}.site-footer{display:flex;justify-content:space-between;gap:16px;padding:24px 30px 100px;font-size:12px;color:var(--muted)}.chapter-dock{position:fixed;z-index:4;bottom:16px;left:50%;transform:translateX(-50%);display:flex;align-items:center;gap:12px;max-width:calc(100% - 24px);width:530px;padding:9px 14px;background:var(--header);border:1px solid var(--line);border-radius:6px;font-size:12px;box-shadow:0 8px 24px #0003}.chapter-dock select{min-width:0;flex:1;background:transparent;border:0;color:var(--text);padding:7px;font-size:13px}.chapter-dock option{background:var(--surface)}.chapter-dock a{white-space:nowrap}
@media(min-width:1500px){.hero h1{font-size:84px}.hero-copy{padding-top:46px}}
@media(max-width:900px){.site-header{gap:14px;padding:12px 20px}.site-header nav{gap:16px}.theme-switch span{display:none}.chapter-body{gap:30px}.band{padding:70px 28px}.guide-layout{grid-template-columns:190px minmax(0,1fr);gap:25px}.hero h1{font-size:60px}.hero{min-height:610px}.tree-year{grid-template-columns:repeat(4,minmax(0,1fr))}}
@media(max-width:600px){body{font-size:16px}.site-header{padding:10px 16px;flex-wrap:wrap}.brand{font-size:15px}.brand img{width:32px;height:32px}.site-header nav{order:3;width:100%;justify-content:space-between;font-size:12px}.theme-switch{margin-left:auto}.hero{height:680px;min-height:0;max-height:calc(100svh - 150px)}.hero-copy{padding:22px 18px 0}.hero h1{font-size:42px}.hero-line{font-size:18px}.hero-sub{font-size:14px;line-height:1.5}.desktop-break{display:none}.hero .eyebrow{font-size:10px}.hero .button{min-height:42px;padding:9px 13px;font-size:12px}.hero-foot{font-size:9px;left:16px;right:16px;bottom:8px}.hero-foot span:last-child{max-width:150px;text-align:right}.band{padding:56px 22px}h2{font-size:34px}.lead{font-size:20px}.three-pillars{grid-template-columns:1fr;gap:8px;margin-top:30px}.three-pillars article{display:grid;grid-template-columns:28px 1fr;gap:0 12px}.three-pillars article h3{margin:0 0 8px;font-size:24px}.three-pillars article p{grid-column:2}.chapter-body,.prose-columns,.start-options{grid-template-columns:1fr;gap:24px}.chapter-side{border-left:0;border-top:1px solid var(--line);padding:22px 0 0}.chapter-copy p:first-child{font-size:20px}.wide-quote{font-size:25px}.year-tool{grid-template-columns:1fr}.year-tool canvas{max-width:400px;margin:auto}.cycle-stages{overflow:auto}.cycle-stages button{min-width:100px;font-size:12px}.stage-body{min-height:230px}.tree-season{gap:20px}.tree-season img{width:95px;height:95px}.tree-year{grid-template-columns:repeat(3,minmax(0,1fr));gap:24px 10px}.tree-year img{width:72px;height:72px}.guide-layout{grid-template-columns:1fr;gap:24px}.guide-layout nav{display:flex;max-height:none;overflow-x:auto}.guide-layout nav button{min-width:132px;text-align:center;border:1px solid var(--line)}.guide-layout nav button[aria-current=true]{border:1px solid var(--accent)}#screenGuide h3{font-size:29px}#appPreview{height:620px}.start-options{gap:30px}.closing h2{font-size:48px}.closing p{font-size:23px}.closing p:last-of-type{font-size:18px}.site-footer{flex-direction:column;padding:25px 22px 110px}.chapter-dock{bottom:10px;gap:4px;padding:8px}.chapter-dock label{display:none}.chapter-dock a{font-size:11px}.chapter-dock select{font-size:11px}}
@media(max-height:700px){.hero{height:auto;max-height:none;min-height:570px}.hero-copy{padding-top:18px}.hero h1{font-size:40px}.hero-line{font-size:18px}.hero-sub{font-size:14px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important}}
@media print{.site-header,.hero canvas,.chapter-dock,.actions,#previewHost,.theme-switch{display:none}body{background:white;color:black}.hero{height:auto;min-height:0;padding:30px}.hero-foot{position:static}.band{padding:24px;break-inside:avoid}h2{font-size:28px}.chapter-body,.guide-layout{display:block}.site-footer{padding:20px}}
.intro{padding-top:42px}
.band{scroll-margin-top:110px}.chapter-dock{background:var(--surface)}
.chapter-dock[hidden]{display:none}
@media(min-width:601px) and (min-height:701px){.hero{height:min(740px,calc(100svh - 180px))}}
@media(max-height:700px){.hero{height:calc(100svh - 190px);min-height:390px}.hero-copy{padding-top:10px}.hero h1{font-size:32px;margin-bottom:10px}.hero-line{font-size:16px;margin-bottom:8px}.hero-sub{font-size:12px;margin-bottom:12px}.hero .eyebrow{font-size:10px;margin-bottom:8px}.hero .button{font-size:12px;padding:8px 12px;min-height:38px}}