/* Gehlvora — two inks, one stroke, sharp corners. See docs/dev/info/design.md. */
:root {
  --paper: #d8d8d8; --ink: #222222; --alert: #c81e1e;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;
  --mono: "SF Mono", ui-monospace, Menlo, Consolas, monospace;
  --dither: repeating-conic-gradient(var(--ink) 0 25%, transparent 0 50%) 0 0 / 2px 2px;
  --dither-paper: repeating-conic-gradient(var(--paper) 0 25%, transparent 0 50%) 0 0 / 2px 2px;
  --ease: cubic-bezier(.2, .7, .1, 1);
  --pad: clamp(16px, 4vw, 48px);
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) { --paper: #222222; --ink: #d8d8d8; --alert: #ff5a4f; color-scheme: dark; }
}
:root[data-theme="dark"] { --paper: #222222; --ink: #d8d8d8; --alert: #ff5a4f; color-scheme: dark; }

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; scroll-padding-top: 64px; }
body { background: var(--paper); color: var(--ink); font: 16px/1.6 var(--sans); -webkit-font-smoothing: antialiased; overflow-x: hidden; transition: background .12s, color .12s; }
a { color: inherit; }
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }
svg { display: block; }
::selection { background: var(--ink); color: var(--paper); }
:focus-visible { outline: 1px solid var(--ink); outline-offset: 3px; }

.label { font: 11px/1.3 var(--mono); letter-spacing: .08em; text-transform: uppercase; }
.mono { font-family: var(--mono); }
.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }

/* ---------- Page frame ---------- */
.page { max-width: 1200px; margin: 0 auto; border-inline: 1px solid var(--ink); min-height: 100vh; }
section, .strip { border-bottom: 1px solid var(--ink); }
.pad { padding: clamp(56px, 9vw, 120px) var(--pad); }

/* ---------- Nav ---------- */
.nav { position: sticky; top: 0; z-index: 10; background: var(--paper); border-bottom: 1px solid var(--ink); transition: background .12s; }
.nav-in { height: 56px; display: flex; align-items: center; gap: 24px; padding: 0 var(--pad); }
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; font-weight: 600; letter-spacing: -.01em; font-size: 17px; }
.brand svg { width: 22px; height: 20px; }
.nav .brand + .dash { margin-left: auto; }
.nav [data-swap] + .menu { margin-left: -12px; }
.nav .dash + [data-swap] { margin-left: -12px; }
.dash { display: inline-flex; align-items: center; gap: 8px; height: 40px; padding: 0 14px; border: 1px dashed var(--ink); cursor: default; flex: none; }
.dash .ico { width: 16px; height: 16px; }
.dash em { font-style: normal; padding: 1px 4px; }
.dash em { background: var(--ink); color: var(--paper); }
.menu { position: relative; }
.menu-list { position: absolute; right: 0; top: calc(100% + 8px); min-width: 200px; display: flex; flex-direction: column; background: var(--paper); border: 1px solid var(--ink); }
.menu-list[hidden] { display: none; }
.menu-list > * { display: flex; gap: 16px; padding: 12px 14px; text-decoration: none; transition: background .12s, color .12s; }
.menu-list > * + * { border-top: 1px solid var(--ink); }
.menu-list a:hover, .menu-list a:focus-visible { background: var(--ink); color: var(--paper); outline: none; }
.menu-list a[aria-current="page"]::before { content: "\2192"; margin-right: -8px; }
.menu-list > span { cursor: default; }
.menu-list > span em { border: 1px dashed var(--ink); padding: 0 4px; }
.legal-title { display: flex; align-items: center; gap: 20px; margin: 28px 0 20px; }
.legal-head .legal-title h1 { margin: 0; }
.legal-title .menu { margin: 0; }
.legal-title .menu-list { right: auto; left: 0; min-width: 240px; }
.menu-list em { font-style: normal; margin-left: auto; }
.menu [data-menu][aria-expanded="true"] { background: var(--ink); color: var(--paper); }
.progress { position: absolute; left: 0; bottom: -1px; height: 2px; width: 100%; background: var(--ink); transform-origin: 0 50%; transform: scaleX(0); }

/* ---------- Buttons ---------- */
.btn { display: inline-flex; align-items: center; gap: 10px; height: 40px; padding: 0 18px; border: 1px solid var(--ink); font-size: 14px; font-weight: 500; text-decoration: none; transition: background .12s, color .12s; }
.btn:hover { background: var(--ink); color: var(--paper); }
.btn:active { transform: translateY(1px); }
.btn.primary { background: var(--ink); color: var(--paper); }
.btn.primary:hover { background: var(--paper); color: var(--ink); }
.btn .ico { width: 16px; height: 16px; }
.icon-btn { width: 40px; height: 40px; border: 1px solid var(--ink); border-radius: 50%; display: grid; place-items: center; transition: background .12s, color .12s; flex: none; }
.icon-btn:hover { background: var(--ink); color: var(--paper); }
.icon-btn:active { transform: translateY(1px); }
.ico { width: 20px; height: 20px; fill: none; stroke: currentColor; stroke-width: 1; stroke-linecap: square; stroke-linejoin: miter; }
.ico * { vector-effect: non-scaling-stroke; }

/* ---------- Type ---------- */
h1, h2, h3 { font-weight: 600; letter-spacing: -.02em; line-height: 1.05; }
h2 { font-size: clamp(34px, 5.4vw, 64px); max-width: 16ch; }
h3 { font-size: clamp(20px, 2.2vw, 26px); letter-spacing: -.01em; line-height: 1.2; }
p { max-width: 60ch; }
p + p { margin-top: 1em; }
.lede { font-size: clamp(17px, 1.6vw, 20px); line-height: 1.55; }
.muted-rule { border: 0; border-top: 1px dashed var(--ink); margin: 40px 0; }

/* Chapter heading: numbered box, name, and a dashed rule running out to the edge. */
.chapter { display: flex; align-items: center; gap: 12px; margin-bottom: 32px; }
.chapter b { font-weight: 400; border: 1px solid var(--ink); padding: 4px 7px; }
.chapter::after { content: ""; flex: 1; border-top: 1px dashed var(--ink); }

.split { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(32px, 6vw, 88px); align-items: center; }
.split > .text > * + * { margin-top: 20px; }

/* ---------- Hero ---------- */
.hero { min-height: calc(100svh - 56px - 46px); display: grid; grid-template-columns: 1.05fr 1fr; align-items: center; gap: clamp(24px, 4vw, 64px); padding: clamp(40px, 7vw, 96px) var(--pad); position: relative; }
.hero h1 { font-size: clamp(54px, 10vw, 136px); letter-spacing: -.045em; line-height: .92; margin: 20px 0 28px; }
.hero h1 .ln { display: block; overflow: hidden; padding-bottom: .06em; }
.hero h1 .ln > span { display: block; transform: translateY(105%); transition: transform 1s var(--ease); }
.hero.in h1 .ln > span { transform: none; }
.hero .lede { max-width: 44ch; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 32px; }
.hero { padding-top: 132px; }
.made { position: absolute; top: 32px; left: var(--pad); display: flex; gap: 14px; align-items: center; max-width: 520px; }
.made img { width: 64px; height: auto; flex: none; image-rendering: auto; }
.made p { font-size: 13px; line-height: 1.5; }
.facts { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 40px; list-style: none; }
.facts { align-items: flex-start; }
.facts li { border: 1px solid var(--ink); padding: 5px 8px; white-space: nowrap; }
.facts li.solid { background: var(--ink); color: var(--paper); }
/* First open: the left column assembles in reading order while the monitor builds.
   label → headline (above) → lede → buttons → fact chips → the REAL rating slaps on. */
.hero > div:first-child > .label, .hero .lede, .hero-actions, .facts li, .made p, .scroll-cue { clip-path: inset(0 0 100% 0); transform: translateY(10px); transition: clip-path .6s var(--ease), transform .6s var(--ease); }
.hero.in > div:first-child > .label, .hero.in .lede, .hero.in .hero-actions, .hero.in .facts li, .hero.in .made p, .hero.in .scroll-cue { clip-path: inset(-4px); transform: none; }
.hero > div:first-child > .label { clip-path: inset(0 100% 0 0); transform: none; transition: clip-path .5s steps(10); }
.hero.in .lede { transition-delay: .55s; }
.hero.in .hero-actions { transition-delay: .75s; }
.hero.in .facts li { transition-delay: calc(.95s + var(--n) * .07s); }
.hero.in .made p { transition-delay: 1.75s; }
.hero.in .scroll-cue { transition-delay: 2.2s; }
.hero h1 .ln:first-child > span { transition-delay: .15s; }
.hero.in h1 .ln:nth-child(2) > span { transition-delay: .27s; }
.made img { transform: scale(0); }
.hero.in .made img { animation: slap .5s cubic-bezier(.3, 0, .4, 1) 1.45s forwards; }
@keyframes slap { 0% { transform: scale(1.9) rotate(-14deg); } 55% { transform: scale(.92) rotate(2deg); } 78% { transform: scale(1.04) rotate(-1deg); } 100% { transform: none; } }

.mark { position: relative; aspect-ratio: 1 / 1; width: 100%; max-width: 560px; justify-self: center; }
.mark canvas { position: absolute; inset: 0; width: 100%; height: 100%; image-rendering: pixelated; }
.mark svg { position: absolute; inset: 0; width: 100%; height: 100%; overflow: visible; }
.mark .screen, .mark .frame { fill: var(--paper); stroke: var(--ink); stroke-width: 1.5; }
.mark .stand, .mark .line { fill: none; stroke: var(--ink); stroke-width: 1; }
.mark .stand { stroke-width: 1.5; }
.mark .glyph { color: var(--ink); }
.mark .solid { fill: var(--ink); }
.mark .hole { fill: var(--paper); }
.mark .wt, .mark .cap { fill: var(--ink); font: 9px var(--mono); letter-spacing: .08em; }
.mark .cap { font-size: 11px; paint-order: stroke; stroke: var(--paper); stroke-width: 8px; stroke-linejoin: miter; }
.mark .tt { fill: var(--paper); font: 600 20px var(--mono); }
.mark .caret-b { fill: var(--ink); animation: blink 1s steps(1) infinite; }
/* Build-up on load: strokes draw, top bar prints, then windows open. */
.mark .screen, .mark .stand, .mark .top { stroke-dasharray: 1; stroke-dashoffset: 1; transition: stroke-dashoffset .8s var(--ease); }
.mark .stand { transition-delay: .25s; }
.mark .top { transition-delay: .55s; }
.hero.in .mark .screen, .hero.in .mark .stand, .hero.in .mark .top { stroke-dashoffset: 0; }
.mark .top-g, .mark .wt { clip-path: inset(0 100% 0 0); transition: clip-path .4s steps(8) .9s; }
.mark .hole, .mark .cap { clip-path: inset(0 50%); transition: clip-path .5s steps(10) 2.1s; }
.hero.in .mark .top-g, .hero.in .mark .wt, .hero.in .mark .hole, .hero.in .mark .cap { clip-path: inset(-4px); }
.mark .win { clip-path: inset(0 0 100% 0); transition: clip-path .5s steps(6); }
.hero.in .mark .win { clip-path: inset(-2px); }
.hero.in .mark .win:nth-of-type(1) { transition-delay: 1s; }
.hero.in .mark .win:nth-of-type(2) { transition-delay: 1.3s; }
.hero.in .mark .win:nth-of-type(3) { transition-delay: 1.6s; }
.mark .tag { transform-origin: 347px 70px; transform: rotate(8deg) scale(0); }
.hero.in .mark .tag { animation: stick .35s cubic-bezier(.5, 0, .75, 0) 2.3s forwards; }
@keyframes stick { 0% { transform: rotate(-6deg) scale(1.8); } 100% { transform: rotate(8deg) scale(1); } }

.scroll-cue { position: absolute; left: var(--pad); bottom: 20px; display: flex; align-items: center; gap: 10px; }
.scroll-cue i { width: 1px; height: 28px; background: var(--ink); animation: cue 1.8s var(--ease) infinite; transform-origin: 50% 0; }
@keyframes cue { 0% { transform: scaleY(0); } 50% { transform: scaleY(1); transform-origin: 50% 0; } 51% { transform-origin: 50% 100%; } 100% { transform: scaleY(0); transform-origin: 50% 100%; } }

/* ---------- Ticker ---------- */
.ticker { overflow: hidden; border-bottom: 1px solid var(--ink); background: var(--ink); color: var(--paper); height: 46px; display: flex; align-items: center; }
.ticker-track { display: flex; flex: none; white-space: nowrap; animation: tick 40s linear infinite; }
.ticker span { padding: 0 20px; display: inline-flex; align-items: center; gap: 20px; }
.ticker span::after { content: ""; width: 7px; height: 6px; background: var(--paper); clip-path: polygon(0 0, 100% 0, 50% 100%); }
@keyframes tick { to { transform: translateX(-50%); } }

/* ---------- Hello strip ---------- */
.hello { display: grid; grid-template-columns: 200px 1fr; gap: 24px; padding: clamp(40px, 6vw, 72px) var(--pad); }
.hello p { font-size: clamp(20px, 2.4vw, 30px); line-height: 1.35; letter-spacing: -.01em; max-width: 34ch; }
.hello p + p { grid-column: 2; }
.hello p em { font-style: normal; background: var(--ink); color: var(--paper); padding: 0 .2em; }

/* ---------- Reveal: e-ink style wipe instead of fades ---------- */
[data-reveal] { clip-path: inset(0 0 100% 0); transform: translateY(18px); transition: clip-path .8s var(--ease), transform .8s var(--ease); }
[data-reveal].in { clip-path: inset(-48px); transform: none; }
[data-reveal="2"] { transition-delay: .1s; } [data-reveal="3"] { transition-delay: .2s; } [data-reveal="4"] { transition-delay: .3s; }

/* E-ink refresh: a brief dither, played once when a figure appears. No solid flash. */
.fig { position: relative; border: 1px solid var(--ink); }
.fig::after { content: ""; position: absolute; inset: 0; pointer-events: none; background: transparent; }
.fig.in::after { animation: flash .5s steps(1) forwards; }
@keyframes flash { 0% { background: var(--dither); } 60%, 100% { background: transparent; } }
.fig-cap { display: flex; justify-content: space-between; gap: 12px; padding: 10px 14px; border-top: 1px solid var(--ink); }
.fig-head { display: flex; justify-content: space-between; gap: 12px; padding: 10px 14px; border-bottom: 1px solid var(--ink); }

/* ---------- 01 Shape ---------- */
.shape-fig .panes { display: grid; grid-template-columns: 1fr 1fr; cursor: grab; touch-action: pan-y; user-select: none; }
.shape-fig .panes.held { cursor: grabbing; }
.shape-fig .drag-hint { border-bottom: 1px dashed var(--ink); }
.shape-fig .pane + .pane { border-left: 1px solid var(--ink); }
.shape-fig svg { width: 100%; height: auto; }
.shape-fig .bar { stroke: var(--ink); stroke-width: 1.5; fill: none; }
.shape-fig .joint { fill: var(--paper); stroke: var(--ink); stroke-width: 1.5; }
.shape-fig .ground { stroke: var(--ink); stroke-width: 1; }
.shape-fig .hatch { stroke: var(--ink); stroke-width: 1; }
.shape-fig .arrow { stroke: var(--ink); stroke-width: 1.5; fill: none; }
.shape-fig .arrow-h { fill: var(--ink); }
.shape-fig .ghost { stroke: var(--ink); stroke-width: 1; stroke-dasharray: 3 4; fill: none; }
.shape-fig .pane-cap { padding: 10px 14px; border-top: 1px solid var(--ink); display: flex; justify-content: space-between; }
.shape-fig .state { padding: 1px 5px; border: 1px solid var(--ink); }
.shape-fig .state.bad { border-style: dashed; }
.shape-fig .state.good { background: var(--ink); color: var(--paper); }

.inks { display: grid; grid-template-columns: 1fr 1fr auto; border: 1px solid var(--ink); margin-top: 8px; }
.swatch { padding: 18px 16px 14px; min-height: 150px; display: flex; flex-direction: column; justify-content: space-between; gap: 18px; }
.swatch.paper { background: #d8d8d8; color: #222222; }
.swatch.ink { background: #222222; color: #d8d8d8; border-left: 1px solid var(--ink); }
.swatch strong { font: 600 clamp(22px, 2.6vw, 30px)/1 var(--mono); letter-spacing: -.01em; }
.swap { border-left: 1px solid var(--ink); padding: 16px; display: flex; flex-direction: column; justify-content: space-between; align-items: center; gap: 12px; }
.swap .icon-btn .ico { transition: transform .4s var(--ease); }
.swap .icon-btn:hover .ico { transform: rotate(180deg); }

/* ---------- 02 Price ---------- */
.price-big { display: flex; align-items: flex-start; gap: 20px; flex-wrap: wrap; }
.price-big .num { font: 600 clamp(110px, 20vw, 260px)/.8 var(--sans); letter-spacing: -.06em; font-variant-numeric: tabular-nums; }
.price-big .num sup { font-size: .45em; vertical-align: top; position: relative; top: .08em; margin-left: .02em; }
.price-big ul { list-style: none; margin-top: 14px; }
.price-big li { padding: 6px 0; border-bottom: 1px dashed var(--ink); min-width: 190px; }
.price-big li:last-child { border-bottom: 0; }

.split-bar { margin-top: 56px; }
.cells { display: grid; grid-template-columns: repeat(10, 1fr); border: 1px solid var(--ink); position: relative; }
/* The coin drops onto the bar and splits; each piece lands in its cell, which then fills. */
.coin { position: absolute; z-index: 2; left: 50%; top: -24px; width: 48px; height: 48px; margin-left: -24px; visibility: hidden; }
.coin circle { fill: var(--paper); stroke: var(--ink); stroke-width: 1; }
.coin .rim { fill: none; stroke-dasharray: 2 2; }
.coin text { fill: var(--ink); font: 600 14px var(--mono); }
.split-bar.in .coin { animation: coin-drop .5s cubic-bezier(.5, 0, .9, .5) .1s both, coin-split .24s steps(4) .75s forwards; }
@keyframes coin-drop { 0% { visibility: visible; transform: translateY(-90px); } 80% { transform: none; } 90% { transform: translateY(-5px); } 100% { visibility: visible; transform: none; } }
@keyframes coin-split { from { visibility: visible; clip-path: inset(0); } to { visibility: visible; clip-path: inset(0 50%); } }
.chip { position: absolute; z-index: 1; width: 12px; height: 12px; margin: -6px 0 0 -6px; border: 1px solid var(--ink); border-radius: 50%; background: var(--paper); visibility: hidden; }
.split-bar.in .chip { animation: chip-fly .45s cubic-bezier(.3, 0, .6, 1) calc(.85s + var(--i) * .05s) backwards; }
@keyframes chip-fly { 0% { visibility: visible; left: 50%; top: 0; } 40% { top: -18px; } 100% { visibility: visible; left: calc((var(--i) + .5) * 10%); top: 50%; } }
.cell { height: clamp(64px, 9vw, 96px); display: flex; align-items: flex-end; padding: 10px; position: relative; overflow: hidden; }
.cell + .cell { border-left: 1px solid var(--ink); }
.cell:not(.give) + .cell:not(.give)::after { content: ""; position: absolute; left: 0; top: 0; bottom: 0; width: 1px; background: var(--paper); }
.cell::before { content: ""; position: absolute; inset: 0; background: var(--ink); transform: scaleY(0); transform-origin: 50% 100%; transition: transform .3s steps(4); transition-delay: calc(var(--i) * .05s + 1.3s); }
.cell span { position: relative; transition: color .12s; transition-delay: calc(var(--i) * .05s + 1.45s); }
.split-bar.in .cell:not(.give)::before { transform: none; }
.split-bar.in .cell:not(.give) span { color: var(--paper); }
.cell.give::before { background: var(--dither); transition-delay: 1.9s; }
.split-bar.in .cell.give::before { transform: none; }
.cell.give span { background: var(--paper); padding: 1px 4px; border: 1px solid var(--ink); }
.braces { display: grid; grid-template-columns: 9fr 1fr; margin-top: 10px; }
.brace { border: 1px solid var(--ink); border-top: 0; height: 12px; margin: 0 6px; clip-path: inset(0 100% 0 0); transition: clip-path .6s var(--ease) 2s; }
.split-bar.in .brace { clip-path: inset(0); }
.brace-t { padding: 12px 6px 0; }
.brace-t strong { display: block; font: 600 20px/1.2 var(--sans); letter-spacing: -.01em; margin-top: 4px; }
.brace-t a { text-underline-offset: 3px; }

.nots { list-style: none; border-top: 1px solid var(--ink); }
.nots li { display: grid; grid-template-columns: 1fr auto; gap: 16px; align-items: baseline; padding: 18px 0; border-bottom: 1px solid var(--ink); }
.nots .word { font-size: clamp(28px, 4vw, 48px); font-weight: 600; letter-spacing: -.03em; line-height: 1.1; position: relative; justify-self: start; }
.nots .word::after { content: ""; position: absolute; left: -4px; right: -4px; top: 55%; height: 3px; background: var(--ink); transform: scaleX(0); transform-origin: 0 50%; transition: transform .5s var(--ease); }
.nots li:nth-child(2) .word::after { transition-delay: .2s; } .nots li:nth-child(3) .word::after { transition-delay: .4s; }
.nots.in .word::after { transform: none; }

.receipt { max-width: 380px; width: 100%; justify-self: center; background: var(--paper); font: 13px/1.5 var(--mono); }
.receipt .rhead { text-align: center; padding: 22px 16px 16px; border-bottom: 1px dashed var(--ink); }
.receipt .rhead svg { width: 28px; height: 26px; margin: 0 auto 10px; }
.receipt dl { padding: 12px 16px; display: grid; grid-template-columns: auto 1fr; gap: 8px 12px; border-bottom: 1px dashed var(--ink); }
.receipt dt { text-transform: uppercase; font-size: 11px; letter-spacing: .08em; }
.receipt dd { text-align: right; }
.receipt dd .ph { display: inline-block; height: 12px; background: var(--dither); vertical-align: middle; }
.receipt .rfoot { padding: 14px 16px 18px; text-align: center; }
.receipt .zig { height: 10px; background: linear-gradient(135deg, var(--paper) 50%, transparent 0) 0 0 / 10px 10px, linear-gradient(-135deg, var(--paper) 50%, transparent 0) 0 0 / 10px 10px; background-color: var(--ink); }
.stamp { display: inline-block; border: 1px solid var(--ink); padding: 4px 8px; margin-top: 8px; transform: rotate(-4deg) scale(1.6); visibility: hidden; transition: transform .25s cubic-bezier(.5, 0, .75, 0) .9s, visibility 0s .9s; }
.fig.in .stamp { transform: rotate(-4deg); visibility: visible; }

/* ---------- 03 Method ---------- */
.term { background: var(--ink); color: var(--paper); font: 13px/1.9 var(--mono); border: 1px solid var(--ink); }
.term .fig-head { border-color: var(--paper); }
.term .dots { display: flex; gap: 6px; } .term .dots i { width: 9px; height: 9px; border: 1px solid var(--paper); border-radius: 50%; }
.term pre { padding: 18px 16px 22px; min-height: 16.5em; white-space: pre-wrap; font: inherit; }
.term .ok { background: var(--paper); color: var(--ink); padding: 0 4px; }
.caret { display: inline-block; width: .6em; height: 1.1em; background: var(--paper); vertical-align: -.2em; animation: blink 1s steps(1) infinite; }
@keyframes blink { 50% { background: transparent; } }

.pillars { display: grid; grid-template-columns: repeat(4, 1fr); border: 1px solid var(--ink); margin-top: 56px; }
.pillar { padding: 22px 18px 24px; transition: background .12s, color .12s; }
.pillar + .pillar { border-left: 1px solid var(--ink); }
.pillar:hover { background: var(--ink); color: var(--paper); }
.pillar .ico { width: 32px; height: 32px; margin-bottom: 36px; }
/* Icons draw themselves stroke by stroke when the pillar appears (lengths set in js/main.js). */
.pillar .ico > * { transition: stroke-dashoffset .9s var(--ease); transition-delay: calc(.35s + var(--k) * .3s); }
.pillar.in .ico > * { stroke-dashoffset: 0 !important; }
.pillar h3 { font-size: 20px; margin-bottom: 8px; }
.pillar p { font-size: 15px; }

.updates { display: grid; grid-template-columns: auto 1fr; gap: 20px 32px; align-items: start; margin-top: 56px; padding-top: 40px; border-top: 1px dashed var(--ink); }

svg .pf { fill: var(--ink); }
.loop { list-style: none; display: flex; flex-wrap: wrap; align-items: center; gap: 0; }
.loop li { border: 1px solid var(--ink); padding: 10px 12px; transition: background .12s, color .12s; }
.loop li + li { margin-left: 28px; position: relative; }
.loop li + li::before { content: ""; position: absolute; left: -24px; top: 50%; width: 20px; border-top: 1px solid var(--ink); }
.loop li + li::after { content: ""; position: absolute; left: -9px; top: calc(50% - 4px); border: 4px solid transparent; border-left: 5px solid var(--ink); }
.loop li.on { background: var(--ink); color: var(--paper); }
/* A token rides from step to step and back along the dashed return line (positions in js/main.js). */
.loop { position: relative; }
.loop.ring { padding-bottom: 18px; }
.loop.ring::after { content: ""; position: absolute; left: var(--a); width: calc(var(--b) - var(--a)); top: calc(100% - 18px); height: 12px; border: 1px dashed var(--ink); border-top: 0; }
.loop-dot { position: absolute; left: 0; top: 0; width: 9px; height: 9px; margin: -4px 0 0 -4px; background: var(--ink); outline: 2px solid var(--paper); z-index: 1; visibility: hidden; }
.loop.ring .loop-dot { visibility: visible; }

/* ---------- 04 Ownership ---------- */
.own-fig svg { width: 100%; height: auto; }
.own-fig .link { stroke: var(--ink); stroke-width: 1; stroke-dasharray: 5 4; fill: none; }
.own-fig .node rect { fill: var(--paper); stroke: var(--ink); stroke-width: 1; }
.own-fig .node.cut rect { stroke-dasharray: 3 3; }
.own-fig .node text, .own-fig .you-t { fill: var(--ink); font: 11px var(--mono); letter-spacing: .08em; text-anchor: middle; }
.own-fig .node.cut text { text-decoration: line-through; }
.own-fig .you rect { fill: var(--ink); }
.own-fig .you path { stroke: var(--paper); stroke-width: 1.5; fill: none; }
.own-fig .you-t { fill: var(--paper); }
.callout { border: 1px dashed var(--ink); padding: 20px 22px; position: relative; }
.callout .label { position: absolute; top: -8px; left: 14px; background: var(--paper); padding: 0 6px; }

/* ---------- 05 Mission ---------- */
.steps { list-style: none; display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid var(--ink); margin-top: 64px; }
.steps li { padding: 28px 24px 8px 0; }
.steps li + li { padding-left: 24px; border-left: 1px solid var(--ink); }
.steps .n { font: 600 clamp(56px, 7vw, 96px)/1 var(--mono); letter-spacing: -.05em; display: block; margin-bottom: 24px; }
.steps h3 { margin-bottom: 10px; }

/* ---------- 06 Balance ---------- */
.scale-fig svg { width: 100%; height: auto; }
.scale-fig .s { stroke: var(--ink); stroke-width: 1.5; fill: none; }
.scale-fig .f { fill: var(--ink); }
.scale-fig .t { fill: var(--ink); font: 11px var(--mono); letter-spacing: .08em; text-anchor: middle; }
.scale-fig .wl { fill: var(--paper); font: 600 9px var(--mono); letter-spacing: .08em; text-anchor: middle; }
.scale-fig .level { fill: var(--paper); font: 600 11px var(--mono); letter-spacing: .08em; text-anchor: middle; }
.fis-fig svg { width: 100%; height: auto; }
.fis-fig .s { stroke: var(--ink); stroke-width: 1.5; fill: none; }
.fis-fig .f { fill: var(--ink); }
.fis-fig .t { fill: var(--ink); font: 11px var(--mono); letter-spacing: .08em; text-anchor: middle; }
.fis-fig .s { vector-effect: non-scaling-stroke; }
.fis-fig .d { fill: url(#fis-dither); }
.fis-fig .p { fill: var(--paper); }
.fis-fig .nu .h, .fis-fig .nu.hit .w { visibility: hidden; }
.fis-fig .nu.hit .h { visibility: visible; }
.beliefs { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0; border: 1px solid var(--ink); margin-top: 64px; }
.beliefs > div { padding: 24px 20px 26px; }
.beliefs > div + div { border-left: 1px solid var(--ink); }
.beliefs h3 { margin-bottom: 10px; }
.beliefs p { font-size: 15px; }

/* ---------- Closing (inverted) ---------- */
.closing { background: var(--ink); color: var(--paper); padding: clamp(80px, 14vw, 180px) var(--pad); }
.closing .chapter b { border-color: var(--paper); }
.closing .chapter::after { border-color: var(--paper); }
.quote { font-size: clamp(36px, 6.4vw, 84px); font-weight: 600; letter-spacing: -.035em; line-height: 1.04; max-width: 17ch; }
.quote .w { color: transparent; background: var(--dither-paper); -webkit-background-clip: text; background-clip: text; transition: color .12s; }
.quote .w.on { color: var(--paper); animation: stamp .3s steps(3); }
/* Letterpress: each word lands pressed in, inverted for a beat, then settles. */
@keyframes stamp { 0% { transform: scale(1.12); } 34% { transform: scale(.97); background: var(--paper); color: var(--ink); -webkit-background-clip: border-box; background-clip: border-box; } 67%, 100% { transform: none; } }
.quote .w { display: inline-block; }
.signoff { display: grid; grid-template-columns: auto 1fr; gap: 20px 24px; align-items: center; margin-top: clamp(56px, 8vw, 96px); padding-top: 32px; border-top: 1px solid var(--paper); }
.signoff > svg { align-self: start; margin-top: 13px; width: 56px; height: 51px; cursor: pointer; transform-origin: 50% 65%; }
/* Click: a slight wind-up, one smooth turn around the triangle's centre, a soft settle. */
.signoff > svg.spin { animation: spin 1.1s forwards; }
@keyframes spin {
  0% { transform: none; animation-timing-function: cubic-bezier(.4, 0, .6, 1); }
  18% { transform: rotate(-24deg); animation-timing-function: cubic-bezier(.55, 0, .25, 1); }
  88% { transform: rotate(366deg); animation-timing-function: ease-in-out; }
  100% { transform: rotate(360deg); }
}
.signoff p { max-width: 58ch; }
.signoff-t p + p { margin-top: 12px; }
.signoff a.btn { grid-column: 2; justify-self: start; border-color: var(--paper); }
.signoff a.btn:hover { background: var(--paper); color: var(--ink); }

/* ---------- Footer ---------- */
footer { display: flex; flex-wrap: wrap; gap: 12px 24px; justify-content: space-between; align-items: center; padding: 22px var(--pad); }
footer .brand { font-size: 15px; }
footer .brand svg { position: relative; z-index: 5; cursor: grab; touch-action: none; }
/* Inverts whatever it passes over: |#d8d8d8 − #fafafa| = #222222 and |#222222 − #fafafa| = #d8d8d8,
   so it is ink on paper and paper on ink, in both modes. Not a third colour. */
footer .brand svg { color: #fafafa; mix-blend-mode: difference; }
footer .brand svg.held { z-index: 1000; cursor: grabbing; }
footer .meta { display: flex; flex-wrap: wrap; gap: 4px; }
footer .meta a { padding: 5px 8px; text-decoration: none; transition: background .12s, color .12s; }
footer .meta a:hover { background: var(--ink); color: var(--paper); }
footer .copy { width: 100%; max-width: none; padding-top: 14px; border-top: 1px dashed var(--ink); }

/* ---------- Legal pages ---------- */
html[lang="de"] body [lang="en"], html[lang="en"] body [lang="de"] { display: none; }
.lang { display: flex; border: 1px solid var(--ink); margin-left: auto; }
.lang button { height: 32px; padding: 0 12px; transition: background .12s, color .12s; }
.lang button + button { border-left: 1px solid var(--ink); }
.lang button[aria-pressed="true"] { background: var(--ink); color: var(--paper); }
.lang button:hover:not([aria-pressed="true"]) { background: var(--dither); }
.legal-head { border-bottom: 1px solid var(--ink); padding-bottom: 48px; }
.legal-head h1 { font-size: clamp(48px, 8vw, 104px); letter-spacing: -.045em; line-height: .95; margin: 28px 0 20px; }
.back { text-decoration: none; padding: 5px 8px; margin-left: -8px; transition: background .12s, color .12s; }
.back:hover { background: var(--ink); color: var(--paper); }
.rows > div { display: grid; grid-template-columns: 260px 1fr; gap: 16px 32px; padding: 28px var(--pad); border-bottom: 1px solid var(--ink); }
.rows dt { padding-top: 4px; }
.rows address { font-style: normal; font-size: clamp(18px, 1.8vw, 22px); line-height: 1.45; }
.rows .k { display: inline-block; width: 80px; }
.rows p + p, .rows address + p, .rows p + address { margin-top: 10px; }
.rows a { text-underline-offset: 3px; }
.abs { list-style: none; counter-reset: abs; padding: 0; margin: 0; }
.abs > li { counter-increment: abs; position: relative; padding-left: 2.6em; }
.abs > li + li { margin-top: 10px; }
.abs > li::before { content: "(" counter(abs) ")"; position: absolute; left: 0; }
.abs ol.items { list-style: none; counter-reset: item; padding: 0; margin: 8px 0 0; }
.abs ol.items > li { counter-increment: item; position: relative; padding-left: 1.8em; }
.abs ol.items > li + li { margin-top: 4px; }
.abs ol.items > li::before { content: counter(item) "."; position: absolute; left: 0; }
.abs p + p, .abs li > p + ol { margin-top: 8px; }
.stand { padding-top: 28px; padding-bottom: 28px; border-bottom: 1px solid var(--ink); }
.legal-head .notice { margin-top: 28px; max-width: 720px; }
.form-sample { margin-top: 12px; padding: 16px; border: 1px dashed var(--ink); font: 12px/1.6 var(--mono); white-space: pre-wrap; overflow-x: auto; }
footer .meta a[aria-current="page"] { background: var(--ink); color: var(--paper); }

/* ---------- Responsive ---------- */
@media (max-width: 960px) {
  .hero { grid-template-columns: 1fr; min-height: 0; padding-bottom: 88px; padding-top: 32px; }
  .made { position: static; margin-bottom: 28px; }
  .mark { max-width: 420px; grid-row: 1; }
  .split { grid-template-columns: 1fr; }
  .pillars { grid-template-columns: 1fr 1fr; }
  .pillar:nth-child(3) { border-left: 0; }
  .pillar:nth-child(n+3) { border-top: 1px solid var(--ink); }
  .beliefs { grid-template-columns: 1fr; }
  .beliefs > div + div { border-left: 0; border-top: 1px solid var(--ink); }
}
@media (max-width: 720px) {
  body { font-size: 15px; }
  .nav .lang { margin-left: auto; }
  .rows > div { grid-template-columns: 1fr; gap: 10px; }
  .hello { grid-template-columns: 1fr; gap: 12px; }
  .hello p + p { grid-column: auto; }
  .steps { grid-template-columns: 1fr; }
  .steps li, .steps li + li { padding: 24px 0 20px; border-left: 0; }
  .steps li + li { border-top: 1px solid var(--ink); }
  .inks { grid-template-columns: 1fr 1fr; }
  .swap { grid-column: 1 / -1; border-left: 0; border-top: 1px solid var(--ink); flex-direction: row; }
  .cell { padding: 6px; font-size: 10px; }
  .braces { grid-template-columns: 1fr; }
  .brace { display: none; }
  .brace-t + .brace-t { margin-top: 8px; }
  .updates { grid-template-columns: 1fr; }
  .signoff-t { grid-column: 1 / -1; grid-row: 1; }
  .signoff > svg { grid-row: 2; align-self: center; margin-top: 0; }
}
@media (max-width: 520px) {
  .dash-t, .dash em { display: none; }
  .nav-in { gap: 14px; }
  .nav [data-swap] + .menu, .nav .dash + [data-swap] { margin-left: -8px; }
  .dash { width: 40px; padding: 0; justify-content: center; }
  .pillars { grid-template-columns: 1fr; }
  .pillar + .pillar { border-left: 0; border-top: 1px solid var(--ink); }
  .mark { max-width: 320px; }
  .shape-fig .pane-cap { flex-direction: column; gap: 6px; align-items: flex-start; }
  .cell span { writing-mode: vertical-rl; transform: rotate(180deg); }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { transition-duration: 0s !important; transition-delay: 0s !important; animation: none !important; }
  html { scroll-behavior: auto; }
  .mark .tag { transform: rotate(8deg); }
  .made img { transform: none; }
}

/* ---------- Pricing ---------- */
.p-head h1 { font-size: clamp(54px, 10vw, 136px); letter-spacing: -.045em; line-height: .92; margin-bottom: 28px; }
.p-head .lede { max-width: 44ch; }
.p-plan-wrap { background: var(--dither); }
.p-plan { max-width: 960px; margin: 0 auto; background: var(--paper); border: 1px solid var(--ink); }
.p-plan-top { display: flex; justify-content: space-between; gap: 12px; padding: 12px 18px; border-bottom: 1px solid var(--ink); }
.p-tag { background: var(--ink); color: var(--paper); padding: 1px 6px; }
.p-plan-body { display: grid; grid-template-columns: auto 1fr; }
.p-plan-price { padding: clamp(24px, 4vw, 48px); border-right: 1px solid var(--ink); display: flex; flex-direction: column; justify-content: center; }
.p-price { font: 600 clamp(120px, 18vw, 220px)/.8 var(--sans); letter-spacing: -.06em; margin-bottom: 18px; max-width: none; }
.p-price sup { font-size: .45em; vertical-align: top; position: relative; top: .08em; margin-left: .02em; }
.p-list { list-style: none; align-self: center; padding: 8px clamp(20px, 3vw, 36px); }
.p-list li { display: grid; grid-template-columns: 36px 1fr; align-items: baseline; padding: 14px 0; border-bottom: 1px dashed var(--ink); }
.p-list li:last-child { border-bottom: 0; }
.p-list b { font-weight: 600; }
.p-list a, .p-legal a { text-underline-offset: 3px; }
.p-plan-act { display: flex; flex-wrap: wrap; align-items: center; gap: 12px 20px; padding: 18px; border-top: 1px solid var(--ink); }
.p-buy { height: 56px; padding: 0 28px; font-size: 17px; border: 1px solid var(--ink); }
.p-msg:empty { display: none; }
.p-msg { border: 1px dashed var(--ink); padding: 4px 8px; }
.p-legal { margin-left: auto; font-size: 13px; }
.nots.in .word::after { transform: none; }
.split .text > .btn { margin-top: 24px; }
@media (max-width: 720px) {
  .p-plan-body { grid-template-columns: 1fr; }
  .p-plan-price { border-right: 0; border-bottom: 1px solid var(--ink); }
  .p-legal { margin-left: 0; }
}

/* ---------- Account (login, sign-up, dashboard) ---------- */
.a-wrap { background: var(--dither); min-height: calc(100svh - 56px); display: grid; place-items: start center; }
.a-card { width: 100%; max-width: 480px; background: var(--paper); border: 1px solid var(--ink); }
.a-top { display: flex; justify-content: space-between; align-items: center; gap: 12px; padding: 12px 18px; border-bottom: 1px solid var(--ink); }
.a-body { padding: clamp(22px, 4vw, 36px); }
.a-body > * + * { margin-top: 18px; }
.a-body h1 { font-size: clamp(34px, 5vw, 48px); letter-spacing: -.035em; }
.a-body p { font-size: 15px; }
.a-steps { display: flex; list-style: none; }
.a-steps li { padding: 1px 6px; border: 1px solid transparent; }
.a-steps li + li { margin-left: 4px; }
.a-steps li[aria-current="step"] { background: var(--ink); color: var(--paper); }
.a-steps li.done { border-color: var(--ink); }
.field { display: flex; flex-direction: column; gap: 6px; }
.field input { height: 46px; padding: 0 12px; border: 1px solid var(--ink); border-radius: 0; background: var(--paper); color: var(--ink); font: 16px var(--sans); width: 100%; }
.field input:focus { outline: 1px solid var(--ink); outline-offset: 2px; }
.field input.code { font: 20px var(--mono); letter-spacing: .3em; }
.field input.key { font: 15px var(--mono); letter-spacing: .04em; text-transform: uppercase; }
.a-actions { display: flex; flex-wrap: wrap; gap: 10px; }
.a-actions .btn { height: 46px; }
.a-card .btn.wide { width: 100%; justify-content: center; height: 46px; }
.btn[disabled], .btn[aria-disabled="true"] { background: var(--paper); color: var(--ink); border-style: dashed; pointer-events: none; }
.a-or { display: flex; align-items: center; gap: 12px; }
.a-or::before, .a-or::after { content: ""; flex: 1; border-top: 1px dashed var(--ink); }
.a-msg:empty { display: none; }
.a-msg { border: 1px dashed var(--ink); padding: 8px 10px; font-size: 14px; }
.a-msg.err { border: 1px solid var(--alert); color: var(--alert); }
.a-links { font-size: 14px; display: flex; flex-direction: column; gap: 6px; }
.a-links a, .a-links button { text-underline-offset: 3px; text-decoration: underline; text-align: left; font-size: 14px; }
.a-choice { display: grid; gap: 10px; }
.a-choice button { display: grid; grid-template-columns: 28px 1fr; gap: 4px 12px; text-align: left; padding: 14px 16px; border: 1px solid var(--ink); transition: background .12s, color .12s; }
.a-choice button:hover { background: var(--ink); color: var(--paper); }
.a-choice .ico { grid-row: span 2; width: 24px; height: 24px; }
.a-choice b { font-weight: 600; }
.a-choice span { font-size: 13px; }
.a-qr { display: flex; gap: 18px; align-items: center; }
.a-qr svg { width: 160px; height: 160px; flex: none; border: 1px solid var(--ink); }
.a-secret { font: 14px/1.6 var(--mono); word-break: break-all; user-select: all; }
.a-recovery { font: 600 clamp(17px, 3.6vw, 21px)/1.4 var(--mono); letter-spacing: .04em; padding: 16px; border: 1px solid var(--ink); text-align: center; user-select: all; background: var(--ink); color: var(--paper); }
.a-check { display: flex; gap: 10px; align-items: flex-start; font-size: 14px; }
.a-check input { margin-top: 4px; accent-color: var(--ink); }
.a-wait { display: flex; align-items: center; gap: 12px; }
.a-wait i { width: 10px; height: 10px; background: var(--ink); animation: blink 1s steps(1) infinite; flex: none; }
a.dash { cursor: pointer; text-decoration: none; border-style: solid; transition: background .12s, color .12s; }
a.dash:hover { background: var(--ink); color: var(--paper); }
@media (max-width: 480px) { .a-qr { flex-direction: column; align-items: flex-start; } }

/* ---------- Dashboard ---------- */
body[data-page="dashboard"] .page, body[data-page="blog"] .page { display: flex; flex-direction: column; min-height: calc(100svh - 56px); }
body[data-page="dashboard"] footer { margin-top: auto; border-top: 1px solid var(--ink); }
body[data-page="blog"] .b-wrap, body[data-page="blog"] .b-post { flex-grow: 1; }
.d-cat { border-bottom: 0; }
.nav .dash + [data-logout] { margin-left: -12px; }
.nav [data-logout] + [data-swap] { margin-left: -12px; }
.d-head { padding: clamp(32px, 6vw, 64px) var(--pad) 28px; }
.d-del { padding: 28px var(--pad) clamp(32px, 6vw, 64px); border-top: 1px dashed var(--ink); }
.d-del summary { cursor: pointer; font-weight: 600; }
.d-del form { display: grid; gap: 12px; justify-items: start; max-width: 64ch; margin-top: 16px; }
.d-del .warn { color: var(--alert); }
.btn.danger { color: var(--alert); }
.d-head h1 { font-size: clamp(34px, 5vw, 48px); letter-spacing: -.035em; line-height: 1.1; margin: 6px 0 24px; }
.d-acct { display: flex; flex-wrap: wrap; gap: 16px 48px; padding-top: 16px; border-top: 1px dashed var(--ink); }
.d-acct dt { margin-bottom: 6px; }
.d-acct dd { font-size: 15px; font-weight: 500; }
.d-chips { display: flex; flex-wrap: wrap; gap: 6px; }
.d-chips span { font: 11px/1.3 var(--mono); letter-spacing: .08em; text-transform: uppercase; border: 1px solid var(--ink); padding: 3px 7px; white-space: nowrap; }
.d-bar { display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap; padding: 20px var(--pad); border-bottom: 1px dashed var(--ink); }
.d-bar h2 { font-size: 20px; font-weight: 600; letter-spacing: -.01em; display: flex; align-items: center; gap: 10px; }
.d-count { background: var(--ink); color: var(--paper); padding: 1px 6px; }
.d-count:empty { display: none; }
.d-field { width: min(320px, 100%); height: 40px; padding: 0 12px; border: 1px solid var(--ink); border-radius: 0; background: var(--paper); color: var(--ink); font: 14px var(--sans); }
.d-field::placeholder { color: var(--ink); font-style: italic; }
.d-field:focus { outline: 1px solid var(--ink); outline-offset: 2px; }
.d-tabs { display: flex; border-bottom: 1px solid var(--ink); }
.d-tabs button { flex: 1; height: 40px; transition: background .12s, color .12s; }
.d-tabs button + button { border-left: 1px solid var(--ink); }
.d-tabs button[aria-pressed="true"] { background: var(--ink); color: var(--paper); }
.d-tabs button:hover:not([aria-pressed="true"]) { background: var(--dither); }
.d-tabs button[hidden] { display: none; }
.d-list { list-style: none; display: grid; gap: 16px; padding: 20px var(--pad) 32px; }
.d-list > li:not(.d-note) { border: 1px solid var(--ink); }
.d-note { padding: 8px 0; }
.d-row { display: flex; align-items: center; gap: 14px; padding: 14px 20px; }
.d-open { flex: 1; min-width: 0; display: flex; align-items: center; gap: 14px; text-align: left; }
.d-open .ico { width: 16px; height: 16px; flex: none; transition: transform .12s; }
.d-open[aria-expanded="true"] .ico { transform: rotate(90deg); }
.d-open:hover .d-name { text-decoration: underline; text-underline-offset: 3px; }
.d-name { font-weight: 600; font-size: 16px; }
.d-meta { display: block; margin-top: 2px; }
.d-keys { flex: none; border: 1px solid var(--ink); padding: 5px 7px; white-space: nowrap; }
.d-keys b { font-weight: 400; background: var(--ink); color: var(--paper); padding: 0 4px; margin-right: 4px; }
.d-row .btn { height: 34px; padding: 0 12px; font-size: 13px; flex: none; }
.d-row .btn[disabled] { cursor: default; }
.d-body[hidden] { display: none; }
.d-body { border-top: 1px solid var(--ink); }
.d-sec { display: grid; grid-template-columns: 150px 1fr; gap: 12px 24px; padding: 22px 20px 24px 50px; border-bottom: 0; }
.d-sec + .d-sec { border-top: 1px dashed var(--ink); }
.d-sec h3 { font-weight: 400; padding-top: 3px; }
.d-sec-body { display: grid; gap: 14px; min-width: 0; }
.d-dl { display: flex; flex-wrap: wrap; gap: 8px; }
.d-dl a { display: inline-flex; align-items: center; gap: 10px; height: 40px; padding: 0 14px; border: 1px solid var(--ink); text-decoration: none; font-size: 14px; transition: background .12s, color .12s; }
.d-dl a.mine, .d-dl a:hover { background: var(--ink); color: var(--paper); }
.d-dl a.mine:hover { background: var(--paper); color: var(--ink); }
.d-dl .ico { width: 16px; height: 16px; }
.d-keyarea { display: grid; gap: 12px; }
.d-empty { font-size: 14px; font-style: italic; }
.d-keyform { display: grid; gap: 8px; border: 1px dashed var(--ink); padding: 14px; max-width: 560px; }
.d-keyrow { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }
.d-keyrow .btn { height: 40px; }
.d-newkey { font: 15px/1.3 var(--mono); letter-spacing: .04em; border: 1px solid var(--ink); padding: 9px 12px; user-select: all; word-break: break-all; }
.d-keylist { list-style: none; display: grid; gap: 8px; max-width: 560px; }
.d-keylist li { border: 1px solid var(--ink); display: flex; flex-wrap: wrap; align-items: center; gap: 4px 14px; padding: 12px 14px; font-size: 14px; }
.d-kname { font-weight: 600; }
.d-keylist code { font: 13px var(--mono); }
.d-kgap { flex: 1; }
.d-kstat { border: 1px solid var(--ink); padding: 2px 6px; }
.d-kstat.active { background: var(--ink); color: var(--paper); }
.d-kstat.released { border-style: dashed; }
.d-khide { background: none; border: 0; color: inherit; font: inherit; line-height: 1; padding: 2px 4px; cursor: pointer; }
.d-khide:disabled { cursor: default; outline: 1px dashed var(--ink); }
.d-krel { background: none; border: 1px solid var(--ink); color: inherit; font: inherit; font-size: 12px; padding: 2px 8px; cursor: pointer; }
.d-krel:hover, .d-krel:focus-visible, .d-krel.armed { background: var(--ink); color: var(--paper); }
.d-krel:disabled { cursor: default; border-style: dashed; }
.d-kseen { flex-basis: 100%; }
.d-kind { white-space: nowrap; font-weight: 700; }
.d-kind.major { color: var(--alert); }
.d-notes { display: grid; gap: 6px; max-width: 64ch; font-size: 14px; }
.d-notes > .label { margin-bottom: 2px; }
.d-notes p { white-space: pre-line; }
.d-older summary { cursor: pointer; }
.d-older { padding-top: 12px; border-top: 1px dashed var(--ink); max-width: 64ch; }
.d-older[open] { display: grid; gap: 16px; }
@media (max-width: 640px) {
  .d-row { flex-wrap: wrap; }
  .d-open { flex-basis: 100%; }
  .d-keys { margin-left: 30px; }
  .d-sec { grid-template-columns: 1fr; padding-left: 20px; }
}
.a-consent { border: 0; display: grid; gap: 10px; margin: 12px 0 0; }
.a-consent legend { margin-bottom: 10px; }
.a-consent a { text-underline-offset: 3px; }
.a-gift { margin-top: 14px; }
.a-gift summary { cursor: pointer; }
.a-gift .field { margin-top: 10px; }
.d-buy { display: grid; gap: 12px; justify-items: start; max-width: 60ch; }
.d-buy [hidden] { display: none; }

/* ---------- Dev Blog ---------- */
.b-wrap { border-bottom: 1px solid var(--ink); }
.b-grid { list-style: none; display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: clamp(20px, 3vw, 36px); }
.b-grid[hidden] { display: none; }
.b-empty { text-align: center; }
.b-card a { display: flex; flex-direction: column; height: 100%; text-decoration: none; background: var(--paper); border: 1px solid var(--ink); }
.b-card a:hover, .b-card a:focus-visible { outline: 1px solid var(--ink); outline-offset: 2px; }
.b-thumb { aspect-ratio: 16 / 9; border-bottom: 1px solid var(--ink); overflow: hidden; }
.b-thumb img { display: block; width: 100%; height: 100%; object-fit: cover; }
.b-thumb-none { background: var(--dither); }
.b-card-body { padding: 18px 20px 22px; }
.b-card-meta { margin-bottom: 10px; }
.b-card h2 { font-size: clamp(22px, 2.2vw, 26px); letter-spacing: -.015em; line-height: 1.15; max-width: none; }
.b-card-desc { margin-top: 10px; }
.b-tags { list-style: none; display: flex; flex-wrap: wrap; gap: 6px; margin-top: 16px; }
.b-tags:empty { display: none; }
.b-tags li { border: 1px dashed var(--ink); padding: 2px 6px; }

.b-post-top { display: flex; justify-content: space-between; align-items: center; gap: 12px; padding: 12px var(--pad); border-bottom: 1px solid var(--ink); }
.b-back, .b-copy { display: inline-flex; align-items: center; gap: 8px; text-decoration: none; padding: 6px 8px; border: 1px solid transparent; }
.b-back:hover, .b-copy:hover { border-color: var(--ink); }
.b-back .ico { width: 16px; height: 16px; }
.b-post-head { border-bottom: 1px solid var(--ink); padding-bottom: clamp(40px, 6vw, 72px); }
.b-post-head h1 { font-size: clamp(44px, 8vw, 104px); letter-spacing: -.045em; line-height: .95; max-width: 16ch; margin-bottom: 28px; }
.b-post-head .lede { max-width: 48ch; }

/* Facts strip: date, reading time, topics. */
.b-facts { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 1px; background: var(--ink); border-bottom: 1px solid var(--ink); }
.b-facts > div { background: var(--paper); padding: 16px var(--pad); display: flex; flex-direction: column; gap: 8px; }
.b-facts dd { font: 600 17px/1.3 var(--sans); letter-spacing: -.01em; text-transform: none; }
.b-facts .b-tags { margin: 0; }
.b-facts .b-tags li { font: 11px/1.3 var(--mono); letter-spacing: .08em; text-transform: uppercase; }

.b-hero { margin: 0; padding: clamp(24px, 4vw, 48px) var(--pad); background: var(--dither); border-bottom: 1px solid var(--ink); }
.b-hero[hidden] { display: none; }
.b-hero img { display: block; width: 100%; max-width: 1000px; max-height: 620px; margin: 0 auto; object-fit: cover; border: 1px solid var(--ink); background: var(--paper); }

/* Article text: one comfortable column. */
.b-body { counter-reset: b-h2; padding-top: clamp(48px, 7vw, 96px); padding-bottom: clamp(32px, 4vw, 48px); }
.b-body > * { max-width: 44rem; margin-inline: auto; }
.b-body > * + * { margin-top: 1.25em; }
.b-body p, .b-body li { font-size: 19px; line-height: 1.72; }
.b-body strong { font-weight: 650; }
.b-body a { text-underline-offset: 4px; text-decoration-thickness: 1px; }
.b-body a:hover { background: var(--ink); color: var(--paper); text-decoration: none; }
.b-body h2 { counter-increment: b-h2; display: flex; align-items: center; gap: 14px; font-size: clamp(28px, 3.4vw, 40px); letter-spacing: -.03em; margin-top: 2.2em; }
.b-body h2::before { content: counter(b-h2, decimal-leading-zero); flex: none; font: 400 11px/1.3 var(--mono); letter-spacing: .08em; border: 1px solid var(--ink); padding: 4px 7px; }
.b-body h3 { font-size: clamp(21px, 2.2vw, 25px); letter-spacing: -.015em; margin-top: 1.8em; }
.b-body h2 + *, .b-body h3 + * { margin-top: .7em; }
.b-body ul, .b-body ol { list-style: none; padding: 0; }
.b-body li { position: relative; padding-left: 34px; }
.b-body li + li { margin-top: .45em; }
.b-body ul > li::before { content: ""; position: absolute; left: 6px; top: .72em; width: 7px; height: 7px; background: var(--ink); }
.b-body ol { counter-reset: b-li; }
.b-body ol > li { counter-increment: b-li; display: grid; grid-template-columns: 34px 1fr; align-items: baseline; padding-left: 0; }
.b-body ol > li::before { content: counter(b-li, decimal-leading-zero); font: 12px/1 var(--mono); letter-spacing: .06em; }
.b-body code { font: .86em var(--mono); border: 1px dashed var(--ink); padding: 1px 5px; }
.b-code { border: 1px solid var(--ink); background: var(--paper); margin-block: 2em; }
.b-code-bar { display: flex; justify-content: space-between; align-items: center; padding: 6px 6px 6px 14px; border-bottom: 1px solid var(--ink); background: var(--ink); color: var(--paper); }
.b-code-bar button { padding: 4px 8px; border: 1px solid var(--paper); }
.b-code-bar button:hover { background: var(--paper); color: var(--ink); }
.b-code pre { padding: 18px 20px; overflow-x: auto; tab-size: 4; }
.b-code pre code { border: 0; padding: 0; font-size: 14.5px; line-height: 1.65; }
.b-body blockquote { margin-block: 2.4em; }
.b-body blockquote p:first-child::before, .b-body blockquote p:last-child::after { font: 400 1.9em/0 Georgia, "Times New Roman", serif; vertical-align: -.34em; }
.b-body blockquote p:first-child::before { content: "\201C"; margin-right: .1em; }
.b-body blockquote p:last-child::after { content: "\201D"; margin-left: .1em; }
.b-body blockquote p { font-size: clamp(24px, 2.6vw, 30px); font-weight: 600; letter-spacing: -.02em; line-height: 1.3; }
/* Divider: the logo mark between two dashed rules. */
.b-body hr { border: 0; height: 14px; margin-block: 3em; background: linear-gradient(var(--ink), var(--ink)) left center / calc(50% - 22px) 1px no-repeat, linear-gradient(var(--ink), var(--ink)) right center / calc(50% - 22px) 1px no-repeat; position: relative; }
.b-body hr::after { content: ""; position: absolute; left: 50%; top: 0; width: 15px; height: 14px; transform: translateX(-50%); background: var(--ink); clip-path: polygon(50% 100%, 0 0, 100% 0); }
.b-end { max-width: none; display: flex; justify-content: center; padding: 0 0 clamp(48px, 7vw, 88px); border-bottom: 1px solid var(--ink); }
.b-end svg { width: 22px; height: 20px; }
.b-pager { display: grid; grid-template-columns: 1fr 1fr; border-bottom: 1px solid var(--ink); }
.b-pager a { display: flex; flex-direction: column; gap: 8px; padding: 24px var(--pad); text-decoration: none; }
.b-pager b { font: 600 18px/1.3 var(--sans); letter-spacing: -.01em; text-transform: none; }
.b-pager .b-newer { text-align: right; border-left: 1px solid var(--ink); }
.b-pager a:hover, .b-pager a:focus-visible { background: var(--ink); color: var(--paper); outline: 0; }
.b-post { display: block; }
.b-post[hidden] { display: none; }
@media (max-width: 720px) {
  .b-pager { grid-template-columns: 1fr; }
  .b-pager .b-newer { text-align: left; border-left: 0; border-top: 1px solid var(--ink); }
  .b-facts { grid-template-columns: 1fr 1fr; }
  .b-facts > div:last-child:nth-child(odd) { grid-column: 1 / -1; }
  }
.chapter b.b-ico { font-size: 17px; line-height: 14px; padding: 4px 5px; }
.b-facts > [hidden], .b-pager[hidden] { display: none; }

/* Online withdrawal (withdraw.html) */
.w-hint { font-size: 14px !important; }
.w-facts { display: grid; grid-template-columns: auto 1fr; gap: 6px 14px; border-top: 1px solid var(--ink); padding-top: 12px; font-size: 14px; }
.w-facts dt { font: 10px/1.9 var(--mono); letter-spacing: .08em; text-transform: uppercase; }
.w-facts dd { overflow-wrap: anywhere; }
.w-ref { font-family: var(--mono); }
.w-cta { display: flex; flex-wrap: wrap; gap: 10px 14px; align-items: center; margin-top: 18px; font-size: 14px; }