@font-face {
    font-family: Jost;
    src: url("jost-regular.ttf") format("truetype");
    font-weight: 400;
    font-display: swap;
}
@font-face {
    font-family: Jost;
    src: url("jost-bold.ttf") format("truetype");
    font-weight: 700;
    font-display: swap;
}
:root {
    color-scheme: light;
    /* Sampled from the greenflame logo at 40% across, 45% down. */
    --green: #78d600;
    --paper: #eeecdf;
    --ink: #1a1b17;
    --rule: #c0c0b2;
    font-family: Jost, "Century Gothic", sans-serif;
    color: var(--ink);
    background: #dcdacf;
}
* { box-sizing: border-box; }
html { scroll-padding-top: 24px; }
body { margin: 0; padding: 28px; }
::selection { background: var(--green); color: var(--ink); }
a { color: inherit; text-decoration-thickness: 1px; text-underline-offset: 5px; }
a:hover { text-decoration-thickness: 2px; }
a:focus-visible { outline: 3px solid currentColor; outline-offset: 6px; }
.skip { position: absolute; z-index: 5; top: 0; left: 28px; padding: 12px 20px; background: var(--ink); color: var(--paper); transform: translateY(-120%); }
.skip:focus { transform: translateY(0); }
.sheet { max-width: 1440px; margin: auto; background: var(--paper); border: 1px solid var(--ink); }
.masthead { display: flex; justify-content: space-between; align-items: center; gap: 24px; padding: 20px 36px; border-bottom: 1px solid var(--ink); font-size: 13px; }
.identity { display: flex; align-items: center; gap: 12px; text-decoration: none; }
.identity-mark { flex: 0 0 13px; width: 13px; height: 13px; background: var(--green); border-radius: 50%; }
nav { display: flex; gap: 30px; }
nav a { display: inline-block; padding-block: 4px; text-decoration: none; }
nav a:hover { text-decoration: underline; }
.nameplate { display: flex; align-items: flex-end; justify-content: space-between; padding: 22px 34px 31px; border-bottom: 1px solid var(--ink); gap: 20px; }
.wordmark { font-size: clamp(72px, 12.8vw, 184px); font-weight: 700; letter-spacing: -.085em; line-height: .93; text-decoration: none; white-space: nowrap; }
.brand-dot { color: var(--green); }
.edition { font-size: 12px; line-height: 1.5; text-align: right; flex-shrink: 0; padding-bottom: 6px; }
.hero { display: grid; grid-template-columns: 1fr 1fr; }
.hero-copy { padding: 44px 40px 42px; }
.eyebrow { margin: 0 0 30px; font-size: 12px; letter-spacing: .075em; }
.little-square { display: inline-block; width: 8px; height: 8px; margin-right: 8px; background: var(--ink); }
h1 { font-size: clamp(48px, 6.3vw, 90px); font-weight: 700; line-height: 1; letter-spacing: -.05em; margin: 0 0 28px; }
.highlight { background: linear-gradient(transparent 69%, var(--green) 69%, var(--green) 93%, transparent 93%); }
.intro { font-size: 20px; line-height: 1.5; margin: 0 0 30px; }
.download { display: inline-flex; align-items: stretch; background: var(--ink); color: var(--paper); font-size: 18px; font-weight: 700; text-decoration: none; }
.download > span:first-child { padding: 17px 27px; }
.download-arrow { display: grid; place-items: center; min-width: 60px; background: var(--green); color: var(--ink); font-size: 32px; line-height: 1; transition: background .15s; }
.download:hover .download-arrow { background: var(--paper); }
.download-note { font-size: 12px; line-height: 1.65; margin: 13px 0 0; }
.composition { margin: 0; border-left: 1px solid var(--ink); display: flex; flex-direction: column; justify-content: center; overflow: hidden; }
.composition svg { width: 100%; height: auto; display: block; flex: 1; min-height: 0; }
.green-fill { fill: var(--green); }
.ink-fill { fill: var(--ink); }
.paper-fill { fill: var(--paper); }
.ink-stroke { stroke: var(--ink); }
figcaption { display: flex; justify-content: space-between; gap: 15px; padding: 16px 23px; border-top: 1px solid var(--rule); font-size: 11px; }
.principles { display: flex; justify-content: space-between; align-items: center; gap: 20px; background: var(--green); padding: 18px 36px; border-block: 1px solid var(--ink); font-size: 15px; }
.principles span:nth-child(even) { font-size: 20px; line-height: 1; }
.tools { display: grid; grid-template-columns: .85fr 1.15fr; padding: 72px 40px; gap: 70px; }
.section-intro h2 { font-size: clamp(40px, 4.4vw, 62px); line-height: 1.06; letter-spacing: -.045em; margin: 0 0 24px; }
.section-intro > p:not(.eyebrow) { font-size: 18px; line-height: 1.55; margin-bottom: 26px; }
.text-link { font-size: 16px; }
.text-link span { margin-left: 16px; }
.tool-list { border-top: 1px solid var(--ink); }
.tool { display: grid; grid-template-columns: 30px 1fr 56px; gap: 20px; align-items: start; padding: 26px 0; border-bottom: 1px solid var(--ink); }
.tool-number { font-size: 12px; padding-top: 8px; }
.tool h3 { font-size: 26px; letter-spacing: -.025em; margin: 0 0 10px; }
.tool p { font-size: 16px; line-height: 1.6; margin: 0; max-width: 350px; }
.tool-symbol { display: block; justify-self: end; margin-top: 7px; width: 42px; height: 42px; }
.frame-symbol { border: 2px dashed var(--ink); box-shadow: inset 0 0 0 8px var(--paper); background: var(--green); }
.arrow-symbol { font-family: Arial, sans-serif; font-size: 60px; line-height: .7; }
.circle-symbol { background: var(--green); border-radius: 50%; border-right: 21px solid var(--ink); transform: rotate(45deg); }
.start { display: grid; grid-template-columns: 1fr 1fr; background: var(--ink); color: var(--paper); padding: 60px 40px; gap: 60px; align-items: center; }
.start .eyebrow { color: var(--green); }
.start h2 { font-size: clamp(40px, 4.5vw, 64px); letter-spacing: -.045em; line-height: 1.05; margin: 0 0 26px; }
.start p:not(.eyebrow) { font-size: 18px; line-height: 1.9; }
.start .text-link { display: inline-block; margin-top: 14px; color: var(--green); }
kbd { font: inherit; border: 1px solid #73766a; padding: 0 6px 2px; white-space: nowrap; }
.key-art { justify-self: center; width: 255px; transform: rotate(-8deg); }
.key-face { position: relative; background: var(--green); color: var(--ink); border: 2px solid var(--green); box-shadow: 10px 10px 0 var(--ink), 11px 11px 0 var(--green); padding: 22px; height: 240px; }
.key-face > span:first-child { font-size: 80px; line-height: .95; letter-spacing: -.055em; font-weight: 700; }
.key-arrow { position: absolute; bottom: 15px; right: 20px; font-size: 56px; line-height: 1; }
.key-caption { display: block; margin-top: 28px; text-align: right; font-size: 12px; }
footer { display: flex; align-items: center; justify-content: space-between; gap: 24px; padding: 32px 36px; }
.footer-brand { font-size: 30px; font-weight: 700; letter-spacing: -.06em; text-decoration: none; }
.footer-brand span { color: var(--green); }
footer > span { font-size: 11px; line-height: 1.7; }
footer nav { font-size: 12px; gap: 20px; }
.back-top { font-size: 25px; text-decoration: none; }
@media (min-width: 1500px) { body { padding-block: 40px; } }
@media (max-width: 1000px) {
    body { padding: 18px; }
    .masthead, .nameplate { padding-inline: 24px; }
    .identity { font-size: 11px; }
    nav { gap: 18px; }
    .edition { display: none; }
    .wordmark { font-size: 16vw; }
    .hero-copy { padding: 34px 26px; }
    .intro { font-size: 18px; }
    .eyebrow { margin-bottom: 24px; }
    .tools { padding: 50px 26px; gap: 34px; grid-template-columns: .8fr 1.2fr; }
    .tool { gap: 12px; grid-template-columns: 24px 1fr 34px; }
    .tool-symbol { width: 30px; height: 30px; }
    .circle-symbol { border-right-width: 15px; }
    .arrow-symbol { font-size: 46px; }
    .tool h3 { font-size: 23px; }
    .principles { padding-inline: 26px; font-size: 12px; gap: 12px; }
    figcaption span:last-child { display: none; }
    .start { padding: 50px 26px; gap: 26px; }
    footer { padding-inline: 26px; flex-wrap: wrap; }
}
@media (max-width: 650px) {
    body { padding: 10px; }
    .masthead { padding: 16px 18px; flex-wrap: wrap; gap: 14px; }
    .masthead nav { width: 100%; justify-content: space-between; font-size: 12px; }
    .identity { font-size: 11px; }
    .nameplate { padding: 20px 16px 25px; }
    .wordmark { font-size: 16.3vw; }
    .hero { grid-template-columns: 1fr; }
    .hero-copy { padding: 32px 22px; }
    h1 { font-size: clamp(48px, 11.5vw, 72px); }
    .intro { font-size: 18px; }
    .composition { border-left: 0; border-top: 1px solid var(--ink); }
    .composition svg { flex: none; }
    figcaption { padding: 14px 20px; }
    figcaption span:last-child { display: inline; }
    .principles { padding: 17px 20px; gap: 12px; font-size: 11px; }
    .principles span:nth-child(even) { display: none; }
    .tools { display: block; padding: 42px 22px; }
    .section-intro { margin-bottom: 34px; }
    .section-intro h2 { font-size: 46px; }
    .tool { grid-template-columns: 22px 1fr 30px; gap: 12px; padding: 24px 0; }
    .tool h3 { font-size: 23px; }
    .tool p { font-size: 16px; }
    .start { grid-template-columns: 1fr; padding: 40px 22px 50px; gap: 45px; }
    .start h2 { font-size: 43px; }
    .key-art { width: 200px; }
    .key-face { height: 195px; }
    .key-face > span:first-child { font-size: 64px; }
    footer { padding: 25px 22px; gap: 22px; }
    footer > span { margin-left: auto; text-align: right; }
    footer nav { gap: 18px; font-size: 11px; }
    .back-top { margin-left: auto; }
}
@media (prefers-reduced-motion: reduce) { * { transition: none !important; } }