body { max-width: 70ch; margin-inline: auto; }
.sitenav { margin-block-end: 1.5rem; padding-block-end: 0.5rem; border-bottom: 1px solid currentColor; }
.sitenav ul { list-style: none; display: flex; flex-wrap: wrap; gap: 1rem; margin: 0; padding: 0; }
.sitenav [aria-current="page"] { font-weight: bold; }
.langpicker { text-align: right; font-size: 0.8rem; margin-block-end: 0.35rem; }
.langpicker a, .langpicker [aria-current="page"] { margin-inline-start: 0.7rem; }
.langpicker [aria-current="page"] { font-weight: bold; }
.tab { display: none; }
.tab:target { display: block; }
.tabs:not(:has(:target)) #zec { display: block; }
.charts-css.column { display: block; max-width: 36rem; margin-block: 1rem; overflow-x: auto; }
.charts-css.column caption { caption-side: top; text-align: start; font-weight: bold; padding-bottom: 0.25rem; display: block; }
.charts-css.column tbody { display: flex; align-items: stretch; gap: 0.5rem; height: 13rem; border-bottom: 1px solid currentColor; }
.charts-css.column tbody tr { flex: 1 1 0; min-width: 3.25rem; display: grid; grid-template-rows: 1fr auto; }
.charts-css.column td { grid-row: 1; align-self: end; height: calc(var(--size, 0) * 100%); background: var(--bar-color, #5a3eaf); border-radius: 3px 3px 0 0; display: flex; align-items: flex-start; justify-content: center; }
.charts-css.column th { grid-row: 2; font-weight: normal; font-size: 0.72rem; text-align: center; padding-top: 0.25rem; word-break: break-word; }
.charts-css.column .data { font-size: 0.7rem; color: #fff; padding: 0.1rem 0.2rem; white-space: nowrap; }
.charts-css.column.volume-chart td:hover .data { font-size: 0.85rem; font-weight: bold; outline: 1px solid currentColor; }
.charts-css.column.ref-line tbody { position: relative; }
.charts-css.column.ref-line td { height: calc(var(--size, 0) * 80%); }
.charts-css.column.ref-line tbody::after { content: ""; position: absolute; left: 0; right: 0; bottom: calc(var(--ref, 1) * 100%); border-top: 2px dashed currentColor; pointer-events: none; }
.history h3 { font-size: 1rem; margin-block: 1.25rem 0.25rem; }
.history h4 { font-size: 0.8rem; font-weight: normal; margin-block: 0.75rem 0.25rem; }
.history-empty { font-style: italic; }
.history-chart { display: grid; grid-template-columns: 3.5rem 1fr 3.5rem; grid-template-rows: 14rem 5rem auto; gap: 0.25rem; max-width: 44rem; margin-block: 0.5rem 1.5rem; grid-template-areas: "data-1-axis stocks data-2-axis" "data-1-axis volume data-2-axis" "primary-axis primary-axis primary-axis"; }
.history-chart .charts-css { display: block; width: 100%; height: 100%; position: relative; }
.history-chart .charts-css.area, .history-chart .charts-css.line { grid-area: stocks; }
.history-chart .charts-css.column { grid-area: volume; max-width: none; margin-block: 0; }
.history-chart .primary-axis { grid-area: primary-axis; font-size: 0.68rem; text-align: center; padding-top: 0.25rem; border-top: 1px solid currentColor; }
.history-chart .data-1-axis { grid-area: data-1-axis; writing-mode: vertical-rl; transform: rotate(180deg); font-size: 0.68rem; text-align: center; align-self: center; }
.history-chart .data-2-axis { grid-area: data-2-axis; writing-mode: vertical-rl; font-size: 0.68rem; text-align: center; align-self: center; }
.history-chart .charts-css.area tbody, .history-chart .charts-css.line tbody { display: flex; flex-direction: row; align-items: stretch; width: 100%; height: 100%; }
.history-chart .charts-css.area tbody tr, .history-chart .charts-css.line tbody tr { position: relative; flex: 1 1 0; min-width: 0; }
.history-chart .charts-css.area td, .history-chart .charts-css.line td { position: absolute; inset: 0; }
.history-chart .charts-css.area td::before, .history-chart .charts-css.line td::before { content: ""; position: absolute; inset: 0; }
.history-chart .charts-css.area td::before { z-index: -1; background: linear-gradient(rgba(90, 62, 175, 0.30), rgba(90, 62, 175, 0)); clip-path: polygon(0% calc(100% * (1 - var(--start, var(--size)))), 100% calc(100% * (1 - var(--size))), 100% 100%, 0% 100%); }
.history-chart .charts-css.line { --line-size: 2px; }
.history-chart .charts-css.line td::before { clip-path: polygon(0% calc(100% * (1 - var(--start, var(--size)))), 100% calc(100% * (1 - var(--size))), 100% calc(100% * (1 - var(--size)) - var(--line-size)), 0% calc(100% * (1 - var(--start, var(--size))) - var(--line-size))); }
.history-chart .charts-css.line.src-bitfinex td::before { background: #2e8b57; }
.history-chart .charts-css.line.src-kraken td::before { background: #4060d0; }
.history-chart .charts-css.line.src-coinbase td::before { background: #d07000; }
.history-chart .charts-css.line.src-binance td::before { background: #b03090; }
.history-chart .charts-css.line.src-coingecko td::before { background: #707070; }
.history-chart .charts-css.line td.gap::before, .history-chart .charts-css.area td.gap::before { content: none; }
.history-chart .charts-css.column tbody { display: flex; flex-direction: row; align-items: flex-end; gap: 1px; width: 100%; height: 100%; border-bottom: 0; }
.history-chart .charts-css.column tbody tr { flex: 1 1 0; min-width: 0; display: flex; align-items: flex-end; }
.history-chart .charts-css.column td { width: 100%; height: calc(var(--size, 0) * 100%); background: #9a8fc0; border-radius: 0; }
.history-chart .charts-css .data { position: absolute; width: 1px; height: 1px; margin: -1px; padding: 0; overflow: hidden; clip-path: inset(50%); border: 0; }
.charts-css.bar { display: block; max-width: 36rem; margin-block: 1rem; }
.charts-css.bar caption { caption-side: top; text-align: start; font-weight: bold; padding-bottom: 0.25rem; }
.charts-css.bar tbody { display: block; }
.charts-css.bar tr { display: grid; grid-template-columns: 11rem 1fr 4.5rem; gap: 0.5rem; align-items: center; margin-block: 3px; }
.charts-css.bar th { font-weight: normal; font-size: 0.72rem; text-align: start; overflow-wrap: anywhere; }
.charts-css.bar td.bar { position: relative; height: 1rem; }
.charts-css.bar td.bar::before { content: ""; position: absolute; inset-block: 0; inset-inline-start: 0; width: calc(var(--size, 0) * 100%); background: #5a3eaf; border-radius: 3px; }
.charts-css.bar td.val { text-align: end; font-size: 0.72rem; font-variant-numeric: tabular-nums; }
.node-chart { max-width: 40rem; margin-block: 0.5rem 1.5rem; }
.node-chart figcaption { font-size: 0.85rem; font-weight: bold; margin-block: 0.75rem 0.25rem; }
.node-plot { display: grid; height: 10rem; border-bottom: 1px solid currentColor; }
.node-plot .charts-css { grid-area: 1 / 1; display: block; width: 100%; height: 100%; position: relative; }
.node-plot .charts-css.line tbody { display: flex; flex-direction: row; align-items: stretch; width: 100%; height: 100%; }
.node-plot .charts-css.line tbody tr { position: relative; flex: 1 1 0; min-width: 0; }
.node-plot .charts-css.line td { position: absolute; inset: 0; }
.node-plot .charts-css.line { --line-size: 2px; }
.node-plot .charts-css.line td::before { content: ""; position: absolute; inset: 0; clip-path: polygon(0% calc(100% * (1 - var(--start, var(--size)))), 100% calc(100% * (1 - var(--size))), 100% calc(100% * (1 - var(--size)) - var(--line-size)), 0% calc(100% * (1 - var(--start, var(--size))) - var(--line-size))); }
.node-plot .charts-css.line.ds-1 td::before { background: #2e8b57; }
.node-plot .charts-css.line.ds-2 td::before { background: #4060d0; }
.node-plot .charts-css.line td.gap::before { content: none; }
.node-axis { display: flex; justify-content: space-between; font-size: 0.68rem; padding-top: 0.25rem; }
.node-plot .charts-css .data { position: absolute; width: 1px; height: 1px; margin: -1px; padding: 0; overflow: hidden; clip-path: inset(50%); border: 0; }
ol.timeline { --timeline-accent: currentColor; list-style: none; position: relative; padding-left: 2.6rem; scroll-snap-type: y proximity; }
ol.timeline::before { content: ""; position: absolute; left: 0.82rem; top: 0.4rem; bottom: 0.4rem; width: 3px; border-radius: 3px; opacity: 0.55; background: linear-gradient(to bottom, transparent 0, var(--timeline-accent) 7%, var(--timeline-accent) 93%, transparent 100%); }
ol.timeline > li { position: relative; margin: 0 0 1.6rem 0; padding: 0.7rem 0.9rem; border: 1px solid transparent; border-radius: 7px; scroll-snap-align: start; }
ol.timeline > li::before { content: ""; position: absolute; left: -2.05rem; top: 0.95rem; width: 13px; height: 13px; border-radius: 50%; background: var(--timeline-accent); box-shadow: 0 0 7px var(--timeline-accent); }
ol.timeline > li:hover, ol.timeline > li:focus-within, ol.timeline > li:target { transform: scale(1.02); border-color: var(--timeline-accent); box-shadow: 0 0 0 1px var(--timeline-accent), 0 0 14px var(--timeline-accent); }
@media (prefers-reduced-motion: no-preference) {
 ol.timeline > li { transition: transform .25s ease, border-color .25s ease, box-shadow .25s ease; }
 ol.timeline > li::before { animation: zs-timeline-node-pulse 3.2s ease-in-out infinite; }
 @keyframes zs-timeline-node-pulse { 0%, 100% { box-shadow: 0 0 6px var(--timeline-accent); } 50% { box-shadow: 0 0 13px var(--timeline-accent); } }
}
.home { margin-block: 1.5rem; }
.home-hero { margin-block: 1rem 1.75rem; }
.home-hero .tagline { margin-block: 0 0.4rem; }
.home-hero p { margin-block: 0.5rem; }
.home-sections { list-style: none; padding: 0; margin-block: 1.75rem; display: grid; grid-template-columns: repeat(auto-fit, minmax(16rem, 1fr)); gap: 1rem; align-items: stretch; }
.home-sections > li { display: flex; flex-direction: column; padding: 0.9rem 1.1rem; border: 1px solid currentColor; border-radius: 8px; }
.home-sections h3 { margin-block: 0 0.3rem; }
.home-sections h3 a { text-decoration: none; }
.home-sections .sec-desc { margin-block: 0; font-size: 0.9rem; opacity: 0.85; }
.home-notes { margin-block-start: 2rem; }
.home-notes p { font-size: 0.85rem; margin-block: 0.55rem; }
.home-foot { opacity: 0.7; }
body { max-width: min(84ch, 94vw); padding: 1.5rem clamp(1rem, 4vw, 3rem) 3rem; }
.sitenav ul { gap: 0; }
.sitenav li { flex: 1 1 0; display: flex; }
.sitenav a, .sitenav [aria-current="page"] { flex: 1; text-align: center; padding: 0.3em 0.4em; }
table:not(.charts-css) { display: block; overflow-x: auto; max-width: 100%; border-collapse: collapse; font-size: 0.85rem; margin-block: 0.7rem 1.4rem; }
table:not(.charts-css) caption { text-align: start; font-weight: bold; padding-bottom: 0.3rem; }
table:not(.charts-css) th, table:not(.charts-css) td { white-space: nowrap; }
table:not(.charts-css) th { text-align: start; font-size: 0.78rem; letter-spacing: 0.02em; border-block-end: 1px solid currentColor; padding: 0.25rem 0.5rem; }
table:not(.charts-css) td { padding: 0.22rem 0.5rem; border-block-end: 1px solid currentColor; font-variant-numeric: tabular-nums; }
table:not(.charts-css) tr:hover td { outline: 1px solid currentColor; }
table:not(.charts-css) tr.summary td { border-block-start: 1px solid currentColor; font-weight: bold; }
.news-pagination ul { list-style: none; display: flex; flex-wrap: wrap; gap: 0.3rem; padding: 0; margin: 1.5rem 0; }
.news-pagination li { flex: 1 1 0; display: flex; }
.news-pagination a, .news-pagination [aria-current="page"] { flex: 1; text-align: center; padding: 0.2em 0.4em; border: 1px solid currentColor; text-decoration: none; }
.news-pagination a:hover, .news-pagination a:focus-visible { outline: 2px solid currentColor; outline-offset: 1px; }
.news-pagination [aria-current="page"] { font-weight: bold; border-width: 2px; }
.themepicker { box-sizing: border-box; width: 100%; display: flex; flex-wrap: wrap; gap: 0.4rem; margin-block-start: 2rem; padding-top: 1rem; border-top: 1px solid currentColor; }
.themepicker a { flex: 1 1 0; text-align: center; margin: 0; padding: 0.3em 0.4em; border: 1px solid currentColor; text-decoration: none; }
.themepicker a:hover, .themepicker a:focus-visible { outline: 2px solid currentColor; outline-offset: 1px; }
.themepicker a.t-default { font-weight: bold; border-width: 2px; }
.charts-css caption, .node-chart figcaption { width: 100%; }
.charts-css.column, .charts-css.bar, .history-chart, .node-chart, .node-plot { max-width: 100%; }
.node-plot .charts-css .data, .history-chart .charts-css .data { position: absolute; top: 0; left: 50%; transform: translateX(-50%); margin-top: 2px; width: auto; height: auto; padding: 0.04em 0.35em; clip-path: none; overflow: visible; background: #fff; color: #000; border: 1px solid currentColor; font-size: 0.7rem; line-height: 1.3; white-space: nowrap; opacity: 0; pointer-events: none; z-index: 20; }
.node-plot .charts-css td:hover .data, .node-plot .charts-css td:focus-within .data, .history-chart .charts-css td:hover .data, .history-chart .charts-css td:focus-within .data { opacity: 1; }
/* network-address footer (ZS-221) — SHARED row layout (inherited by every theme except plain) */
.netfooter { margin-top: 3rem; font-size: 0.9rem; text-align: center; }
.netaddr { list-style: none; display: flex; flex-wrap: nowrap; width: 100%; gap: 0; margin: 0; padding: 0; }
.netaddr li { flex: 1 1 0; margin: 0; text-align: center; min-width: 0; }
.nf-source { margin: 0.6rem 0 0; font-size: 0.74em; opacity: 0.6; }
/* footer (ZS-221) — DEFAULT theme decoration ONLY (rule + faint dividers + 70ch); not inherited */
.netfooter { border-top: 1px solid currentColor; padding-top: 0.7rem; max-width: 70ch; margin-inline: auto; }
.netaddr a { color: inherit; display: inline-block; padding: 0.15rem 0; letter-spacing: 0.03em; }
.netaddr li + li { border-left: 1px solid rgba(0,0,0,0.18); }
.nf-source { opacity: 0.55; }