:root { font-family: system-ui, sans-serif; line-height: 1.5; }
body { max-width: 820px; margin: 2rem auto; padding: 0 1rem; }
.muted { opacity: .7; font-size: .9rem; }
.demo { border: 1px solid #ccc; border-radius: 6px; padding: .5rem 1.2rem 1.2rem; margin: 1.5rem 0; }
.demo h2 { font-size: 1.25rem; margin: .6rem 0 0; }
.examples { margin-top: 2rem; }
.examples h2 { font-size: 1.25rem; margin: 0 0 .5rem; }
form { display: flex; gap: .5rem; margin: 1.2rem 0; }
input, button { font: inherit; padding: .45rem .6rem; }
input { flex: 1; }
button { cursor: pointer; }
table { border-collapse: collapse; width: 100%; margin-top: 1rem; }
th, td { border: 1px solid; padding: .4rem .6rem; text-align: left; }
th { font-weight: 600; background: #f7f7f7; }
td.hash, th.hash { font-family: monospace; }
td.word { font-size: 1.25rem; }
caption { text-align: left; margin-bottom: .5rem; }
td.group { border: none; padding: 1.1rem .6rem .3rem; color: gray; font-style: italic; }

/* ---- "The algorithm" explainer ---- */
.algo { margin-top: 3rem; border-top: 1px solid #ddd; padding-top: 1.5rem; }
.algo h2 { font-size: 1.25rem; margin: 0 0 .5rem; }
.algo h3 { font-size: 1rem; margin: 1.6rem 0 .3rem; }
.algo code { font-family: monospace; background: #f0f0f0; padding: .05rem .3rem; border-radius: 3px; }
.algo table.grid { border-collapse: collapse; margin: .8rem 0; font-size: .9rem; }
.algo .grid th, .algo .grid td { border: 1px solid #ccc; padding: .3rem .55rem; text-align: center; }
.algo .grid th { font-weight: 600; }
.algo .grid .lbl { text-align: left; color: gray; }
.algo .grid .native { font-size: 1.2rem; text-align: center; }
.algo .grid td.native:has(.sl) { text-align: left; line-height: 1.7; }
.algo .grid .grp { text-align: left; font-weight: 600; background: #f7f7f7; color: #555; }
.algo .grid .gap { color: #ccc; }
.algo .grid .sl { font-family: sans-serif; font-size: .6rem; color: #aaa; text-transform: uppercase; letter-spacing: .04em; margin-right: .5rem; vertical-align: middle; }
.algo .grid .code { font-family: monospace; font-weight: 600; }
.algo ol.steps { margin: .5rem 0; padding-left: 1.3rem; }
.algo .steps li { margin: .3rem 0; }

/* step-by-step walkthrough table */
.algo .walk-wrap { overflow-x: auto; }
.algo table.walk { border-collapse: collapse; margin: .8rem 0; font-size: .9rem; }
.algo .walk th, .algo .walk td { border: 1px solid #ccc; padding: .35rem .6rem; text-align: left; vertical-align: middle; }
.algo .walk th { font-weight: 600; }
.algo .walk .rune { font-size: 1.35rem; text-align: center; }
.algo .walk .t { color: gray; }
.algo .walk .emit, .algo .walk .k2 { font-family: monospace; }
.algo .walk .emit { font-weight: 600; }
.algo .walk .k2 .new { color: #c00; }
.algo .walk .none { color: #ccc; }