/* Field Notes composes the landing page's shared typography, tokens and chrome. */
.fn-index, .fn-hero { padding: 76px var(--page-gutter) 56px; }
.fn-index__head { max-width: 800px; }
.fn-index h1, .fn-hero h1 { margin: 24px 0; color: var(--ink-050); font: 450 clamp(38px, 4.6vw, 62px)/1.08 var(--font-sans); letter-spacing: -.045em; text-wrap: balance; }
.fn-index h1 span { display: block; color: var(--ink-300); }
.fn-index__head > p:last-child, .fn-deck { max-width: 55ch; color: var(--ink-200); font: 400 18px/1.65 var(--font-sans); }
.fn-index__bar { display: flex; justify-content: space-between; gap: 20px; margin-top: 64px; padding: 18px 0; border-top: 1px solid var(--line-200); color: var(--ink-300); font: 500 11px/1.5 var(--font-mono); text-transform: uppercase; letter-spacing: .07em; }
.fn-card { display: grid; grid-template-columns: .9fr 1.1fr; border: 1px solid var(--line-200); border-radius: var(--radius-md); overflow: hidden; text-decoration: none; background: var(--bg-050); transition: border-color .2s; }
.fn-card:hover { border-color: var(--signal-edge); }
.fn-card__art { position: relative; display: flex; flex-direction: column; justify-content: space-between; min-height: 350px; padding: 28px; border-right: 1px solid var(--line-200); background: radial-gradient(ellipse at 50% 70%, #f2764810, transparent 70%), repeating-linear-gradient(0deg, transparent 0 31px, #ffffff04 31px 32px), repeating-linear-gradient(90deg, transparent 0 31px, #ffffff04 31px 32px), var(--bg-000); }
.fn-card__serial, .fn-card__label { color: var(--ink-400); font: 500 10px/1.5 var(--font-mono); letter-spacing: .09em; text-transform: uppercase; }
.fn-card__label { color: var(--ink-300); }
.fn-card__glyph { align-self: center; color: var(--ink-200); font: 400 clamp(30px, 3.5vw, 46px)/1.5 var(--font-mono); letter-spacing: -.06em; }
.fn-card__glyph span { display: block; color: var(--signal); }
.fn-card__copy { padding: 36px; display: flex; flex-direction: column; align-items: start; }
.fn-meta { display: flex; flex-wrap: wrap; gap: 10px 18px; color: var(--ink-300); font: 400 11px/1.6 var(--font-mono); }
.fn-meta > :first-child { color: var(--signal); }
.fn-card h2 { margin: 22px 0 16px; font: 450 29px/1.2 var(--font-sans); letter-spacing: -.03em; color: var(--ink-050); }
.fn-card__copy > p { color: var(--ink-200); font: 400 14px/1.7 var(--font-sans); }
.fn-read { margin-top: auto; padding-top: 30px; color: var(--signal); font: 500 13px/1.4 var(--font-sans); }
.fn-read span { margin-left: 20px; }
.fn-hero { border-bottom: 1px solid var(--line-200); }
.fn-back { display: inline-block; margin-bottom: 44px; color: var(--ink-300); font: 400 13px/1.4 var(--font-sans); text-decoration: none; }
.fn-back:hover { color: var(--signal); }
.fn-hero h1 { max-width: 950px; }
.fn-layout { display: grid; grid-template-columns: 200px minmax(0, 1fr); gap: 56px; padding: 56px var(--page-gutter) 80px; }
.fn-contents nav { position: sticky; top: calc(var(--header-height) + 32px); }
.fn-contents .b-eyebrow { margin-bottom: 24px; }
.fn-contents a { display: flex; gap: 12px; padding: 12px 0; border-bottom: 1px solid var(--line-100); color: var(--ink-300); text-decoration: none; font: 400 12px/1.5 var(--font-sans); }
.fn-contents a span { color: var(--ink-400); font-family: var(--font-mono); font-size: 10px; }
.fn-contents a:hover, .fn-contents a[aria-current] { color: var(--signal); }
.fn-prose { min-width: 0; max-width: 720px; color: var(--ink-200); font: 400 16px/1.85 var(--font-sans); }
.fn-prose p + p { margin-top: 20px; }
.fn-prose strong { color: var(--ink-100); font-weight: 550; }
.fn-prose a:not(.b-btn) { color: var(--ink-100); text-decoration-color: var(--signal-edge); text-underline-offset: 4px; overflow-wrap: anywhere; }
.fn-prose a:hover { color: var(--signal); }
.fn-prose section { margin-top: 48px; padding-top: 36px; border-top: 1px solid var(--line-200); scroll-margin-top: 96px; }
.fn-prose h2 { margin-bottom: 24px; color: var(--ink-050); font: 450 27px/1.25 var(--font-sans); letter-spacing: -.025em; }
.fn-prose ul { padding-left: 22px; margin: 20px 0; }
.fn-prose li { padding-left: 5px; margin: 10px 0; }
.fn-prose li::marker { color: var(--signal); }
.fn-prose code { padding: 2px 5px; background: var(--bg-100); border: 1px solid var(--line-200); border-radius: 3px; color: var(--ink-100); font: 400 .82em/1.6 var(--font-mono); overflow-wrap: anywhere; }
.fn-prose pre { padding: 18px 22px; margin: 20px 0; border: 1px solid var(--line-200); border-left: 2px solid var(--signal); border-radius: var(--radius-sm); background: var(--bg-100); }
.fn-prose pre code { border: 0; padding: 0; color: var(--signal); }
.fn-table { overflow-x: auto; margin: 24px 0; border: 1px solid var(--line-200); border-radius: var(--radius-sm); }
.fn-table table { width: 100%; border-collapse: collapse; text-align: left; font-size: 13px; line-height: 1.65; }
.fn-table th { padding: 14px 18px; background: var(--bg-100); color: var(--ink-300); font: 500 10px/1.5 var(--font-mono); text-transform: uppercase; letter-spacing: .06em; }
.fn-table td { padding: 14px 18px; border-top: 1px solid var(--line-200); vertical-align: top; }
.fn-table td:first-child { width: 34%; color: var(--ink-100); }
.fn-callout { margin-top: 28px; padding: 24px; border: 1px solid var(--signal-edge); border-left: 2px solid var(--signal); border-radius: var(--radius-sm); background: var(--signal-wash); font-size: 14px; }
.fn-checked { color: var(--ink-300); font-size: 13px; }
.fn-signoff { margin: 40px 0 28px; padding-top: 24px; border-top: 1px solid var(--line-200); color: var(--ink-300); font-size: 13px; }
@media (max-width: 1000px) { .fn-layout { grid-template-columns: 160px minmax(0, 1fr); gap: 32px; } .fn-card__copy { padding: 26px; } .fn-card h2 { font-size: 25px; } }
@media (max-width: 760px) { .fn-layout { grid-template-columns: minmax(0, 1fr); gap: 32px; padding-top: 32px; } .fn-contents nav { position: static; } .fn-contents nav { display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); column-gap: 20px; } .fn-contents .b-eyebrow { grid-column: 1 / -1; margin-bottom: 6px; } .fn-card { grid-template-columns: minmax(0,1fr); } .fn-card__art { min-height: 260px; border-right: 0; border-bottom: 1px solid var(--line-200); } .fn-card__glyph { font-size: 40px; } .fn-index, .fn-hero { padding-top: 48px; } .fn-prose { font-size: 15px; } .fn-prose h2 { font-size: 24px; } .fn-index__bar span:last-child { display: none; } .fn-table td, .fn-table th { padding: 12px; } }

/* Fault line: static ASCII illustration, available without JavaScript. */
.fn-card__art:has(.fn-ascii) { min-height: 350px; background: var(--bg-050); isolation: isolate; }
.fn-ascii { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; z-index: -1; }
.fn-card__art:has(.fn-ascii) .fn-card__serial { color: var(--ink-300); }
@media (max-width: 760px) { .fn-card__art:has(.fn-ascii) { min-height: 310px; } }