:root { color-scheme: light; font-family: ui-sans-serif, system-ui, -apple-system, sans-serif; color: #162b38; background: #f3f7f8; line-height: 1.55; }
* { box-sizing: border-box; }
body { margin: 0; }
main { width: min(100% - 2rem, 58rem); margin: 2.5rem auto; }
h1 { font-size: clamp(2.3rem, 6vw, 3.5rem); line-height: 1.08; letter-spacing: -.035em; margin: .25rem 0; }
h2 { font-size: 1.3rem; line-height: 1.3; margin: 0 0 1rem; }
h3 { font-size: 1.05rem; margin: 1.2rem 0 .45rem; }
p { margin: .75rem 0; }
.eyebrow { font-size: .85rem; text-transform: uppercase; letter-spacing: .07em; color: #3c646d; }
.intro { font-size: 1.4rem; margin-bottom: 1rem; }
section { margin: 1.75rem 0; }
.workspace, .result { background: #fff; border: 1px solid #cddde2; border-radius: 1rem; padding: 1.5rem; box-shadow: 0 .2rem 1rem #152d3610; }
label { display: block; font-weight: 650; margin-bottom: .5rem; }
textarea { display: block; resize: vertical; width: 100%; min-width: 0; border: 1px solid #8da7b2; border-radius: .5rem; padding: .7rem; background: #fcfeff; color: inherit; font: .95rem/1.5 ui-monospace, SFMono-Regular, monospace; }
input[type=number] { width: min(100%, 10rem); padding: .65rem; color: inherit; background: #fcfeff; border: 1px solid #8da7b2; border-radius: .5rem; font: inherit; }
.toggle { display: flex; align-items: flex-start; gap: .6rem; font-weight: 500; margin: 1rem 0; }
input[type=checkbox] { flex-shrink: 0; width: 1.15rem; height: 1.15rem; margin-top: .2rem; }
.hint { font-size: .9rem; color: #405964; }
.actions { display: flex; gap: .6rem; flex-wrap: wrap; margin-top: 1rem; }
button { cursor: pointer; font: inherit; font-weight: 650; padding: .7rem .9rem; border-radius: .55rem; border: 1px solid #125968; background: #125968; color: #fff; white-space: normal; }
button.secondary { background: #e8f3f5; color: #125968; }
button.quiet { background: #fff; color: #364e59; border-color: #aebfc6; }
:focus-visible { outline: 3px solid #eaad32; outline-offset: 3px; }
.removed { font-weight: 750; }
.warning { border-left: .25rem solid #c78516; padding: .5rem .8rem; background: #fff7e8; }
.table-wrap { max-width: 100%; overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: .95rem; }
caption { text-align: left; font-weight: 600; margin-bottom: .5rem; }
th, td { text-align: left; vertical-align: top; padding: .55rem; border-bottom: 1px solid #d7e3e7; overflow-wrap: anywhere; }
th { background: #eef4f6; }
li { margin-bottom: .6rem; }
code { overflow-wrap: anywhere; font-size: .9em; }
footer { color: #405964; font-size: .9rem; border-top: 1px solid #cddde2; padding-top: 1rem; }
a { color: #125968; overflow-wrap: anywhere; }
[hidden] { display: none !important; }
@media (max-width: 420px) { main { width: calc(100% - 1.4rem); margin: 1.5rem auto; } .workspace, .result { padding: 1rem; } button { width: 100%; } th, td { padding: .4rem; } }