/* Detail pages: articles (a warm reading room) and lab experiments (a dark workbench). */

.back { display: inline-flex; gap: 8px; color: var(--mute); margin-bottom: 40px; transition: color .3s, transform .5s var(--ease); }
.back:hover { color: var(--ember); transform: translateX(-4px); }
.ahead__meta { display: flex; flex-wrap: wrap; align-items: center; gap: 10px 18px; color: var(--mute); margin-bottom: 28px; }
.ahead__arch { color: var(--ember); }
.ahead__title .word, .xhead__title .word { display: inline-block; overflow: hidden; vertical-align: top; padding-bottom: .08em; margin-bottom: -.08em; }
.ahead__title .word > span, .xhead__title .word > span { display: inline-block; }

/* ---------- article ---------- */
.ahead { padding: 150px var(--gutter) 56px; }
.ahead__title { font-size: clamp(40px, 6vw, 104px); line-height: .98; letter-spacing: -0.05em; font-weight: 200; margin: 0 0 36px; max-width: 16ch; }
.ahead__lede { font-size: clamp(20px, 2vw, 28px); line-height: 1.35; letter-spacing: -0.02em; color: var(--ink-2); max-width: 44ch; margin: 0; }

.cover { position: relative; margin: 0 var(--gutter); height: clamp(260px, 42vw, 560px); border-radius: var(--radius); overflow: hidden; background: var(--paper-2); display: flex; align-items: flex-end; justify-content: space-between; padding: clamp(20px, 3vw, 40px); }
.cover .hero__gl { position: absolute; inset: 0; width: 100%; height: 100%; }
.cover__glyph { position: relative; font-size: clamp(180px, 34vw, 520px); line-height: .72; font-weight: 600; letter-spacing: -0.08em; color: var(--ember); mix-blend-mode: multiply; opacity: .9; }
.cover--1 .cover__glyph { font-weight: 200; color: var(--ink); }
.cover--2 { background: var(--ink); }
.cover--2 .hero__gl { opacity: .12; }
.cover--2 .cover__glyph { color: var(--peach); mix-blend-mode: normal; }
.cover--2 .cover__cat { color: var(--peach); }
.cover--3 .cover__glyph { font-weight: 300; color: transparent; -webkit-text-stroke: 2px var(--ember); mix-blend-mode: normal; }
.cover__cat { position: relative; color: var(--ember-2); }

.reader__grid { display: grid; grid-template-columns: var(--w4) minmax(0, 1fr); gap: var(--gap); padding: clamp(64px, 8vw, 110px) var(--gutter); }
.rail__inner { position: sticky; top: 110px; display: grid; gap: 28px; }
.ring { position: relative; width: 56px; height: 56px; }
.ring svg { width: 100%; height: 100%; transform: rotate(-90deg); }
.ring circle { fill: none; stroke: var(--line); stroke-width: 2; }
.ring .ring__fill { stroke: var(--ember); stroke-dasharray: 125.7; stroke-dashoffset: 125.7; stroke-linecap: round; }
.ring span { position: absolute; inset: 0; display: grid; place-items: center; font-size: 10px; color: var(--ink-2); }
.rail .eyebrow { margin-bottom: 0; }
.toc { list-style: none; margin: 0; padding: 0; display: grid; gap: 2px; border-left: 1px solid var(--line); }
.toc a { display: block; padding: 8px 0 8px 16px; margin-left: -1px; border-left: 1px solid transparent; color: var(--mute); font-size: 15px; line-height: 1.3; transition: color .3s, border-color .3s; }
.toc a:hover { color: var(--ink); }
.toc a.is-active { color: var(--ink); border-left-color: var(--ember); }
.tools { display: grid; gap: 6px; }
.tool { display: flex; align-items: center; gap: 12px; font: inherit; font-size: 14px; color: var(--ink-2); background: none; border: 0; padding: 6px 0; text-align: left; transition: color .3s; }
.tool:hover, .tool[aria-pressed="true"] { color: var(--ember); }
.tool__icon { width: 34px; height: 34px; flex: none; border-radius: 50%; display: grid; place-items: center; box-shadow: inset 0 0 0 1px var(--line); font-style: normal; font-size: 12px; transition: background .3s, color .3s, box-shadow .3s; position: relative; }
.tool[aria-pressed="true"] .tool__icon { background: var(--ember); color: var(--paper); box-shadow: none; }
.tool__icon--play::before { content: ""; border-left: 8px solid currentColor; border-top: 5px solid transparent; border-bottom: 5px solid transparent; margin-left: 2px; }
.tool[aria-pressed="true"] .tool__icon--play::before { border: 0; width: 8px; height: 10px; margin: 0; background: linear-gradient(90deg, currentColor 0 3px, transparent 3px 5px, currentColor 5px); }
@media (max-width: 900px) {
  .reader__grid { grid-template-columns: 1fr; }
  .rail__inner { position: static; grid-template-columns: auto 1fr; align-items: start; }
  .rail .eyebrow, .toc { display: none; }
  .tools { grid-auto-flow: column; justify-content: start; gap: 16px; }
  .tool span { display: none; }
}

.prose { max-width: 68ch; font-size: 19px; line-height: 1.7; color: var(--ink-2); --prose: 19px; }
.prose.is-large { font-size: 22px; }
.prose > p { margin: 0 0 1.3em; }
.prose .is-reading, .ahead .is-reading { color: var(--ink); background: linear-gradient(transparent 62%, rgba(248,169,102,.35) 62%); transition: color .4s; }
.prose__list li.is-reading { background: rgba(248,169,102,.18); }
.prose > p:first-child::first-letter { float: left; font-size: 4.2em; line-height: .82; font-weight: 600; color: var(--ember); margin: .06em .1em 0 0; letter-spacing: -0.04em; }
.prose__h2 { display: flex; gap: 16px; align-items: baseline; font-size: clamp(26px, 2.6vw, 38px); line-height: 1.1; letter-spacing: -0.035em; font-weight: 500; color: var(--ink); margin: 2.2em 0 .8em; scroll-margin-top: 110px; }
.prose__h2 .mono { color: var(--ember); flex: none; }
.prose h3 { font-size: 24px; color: var(--ink); font-weight: 500; letter-spacing: -0.02em; }
.prose__list { margin: 0 0 1.6em; padding: 0; list-style: none; counter-reset: li; display: grid; gap: 4px; }
.prose__list li { position: relative; padding: 14px 0 14px 40px; border-bottom: 1px solid var(--line); color: var(--ink); }
.prose__list li::before { content: "→"; position: absolute; left: 0; color: var(--ember); }
ol.prose__list li::before { counter-increment: li; content: counter(li, decimal-leading-zero); font-family: var(--mono); font-size: 12px; top: 18px; }
.pull { margin: 2em 0 2em -4vw; padding: 0; border: 0; }
.pull p { font-size: clamp(28px, 3.4vw, 50px); line-height: 1.1; letter-spacing: -0.04em; font-weight: 300; margin: 0; color: var(--ink); }
.pull p::before { content: "“"; display: block; font-size: 1.8em; line-height: .6; height: .45em; color: var(--ember); font-weight: 600; }
.pull .sw { color: rgba(22,11,2,.16); }
@media (max-width: 900px) { .pull { margin-left: 0; } }

.stub { margin: 8px 0 0; padding: 32px; border-radius: var(--radius); background: var(--paper-2); }
.stub__text { font-size: 20px; line-height: 1.5; color: var(--ink-2); margin: 0 0 24px; }
.stub__text strong { color: var(--ink); font-weight: 500; }

.byline { display: flex; gap: 20px; align-items: center; margin-top: 64px; padding-top: 32px; border-top: 1px solid var(--line); }
.byline img { width: 72px; height: 72px; border-radius: 50%; object-fit: cover; filter: grayscale(.3) sepia(.1); }
.byline p { margin: 0; }
.byline .mono { color: var(--mute); }
.byline__name { font-size: 20px; font-weight: 500; color: var(--ink); }
.byline__bio { font-size: 15px; color: var(--mute); line-height: 1.4; }

.pns { display: grid; grid-template-columns: 1fr 1fr; border-block: 1px solid var(--line); margin: 0 var(--gutter); }
.pn { display: flex; flex-direction: column; gap: 10px; padding: 40px 32px 40px 0; transition: background .5s var(--ease); position: relative; }
.pn + .pn, .pn--empty + .pn { padding: 40px 0 40px 32px; border-left: 1px solid var(--line); text-align: right; align-items: flex-end; }
.pn .mono { color: var(--ember); }
.pn__title { font-size: clamp(22px, 2.4vw, 34px); letter-spacing: -0.03em; line-height: 1.1; transition: color .3s; }
.pn:hover .pn__title { color: var(--ember); }
.pn .pn__meta { color: var(--mute); }
@media (max-width: 700px) { .pns { grid-template-columns: 1fr; } .pn + .pn, .pn--empty + .pn { border-left: 0; border-top: 1px solid var(--line); padding-left: 0; } }

.related { padding: clamp(80px, 10vw, 130px) var(--gutter); }
.related__grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: var(--gap); }
.rel { display: flex; flex-direction: column; gap: 14px; padding: 28px; min-height: 240px; border-radius: var(--radius); background: var(--paper-2); transition: background .5s, transform .6s var(--ease); }
.rel:hover { background: #fde3cb; transform: translateY(-6px); }
.rel .mono { color: var(--ember); }
.rel__title { font-size: 24px; letter-spacing: -0.03em; line-height: 1.12; color: var(--ink); }
.rel__ex { color: var(--mute); font-size: 15px; margin-top: auto; display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; }
@media (max-width: 900px) { .related__grid { grid-template-columns: 1fr; } }

/* ---------- lab experiment ---------- */
body[data-page="experiment"] { background: var(--ink); color: var(--paper); }
body[data-page="experiment"] .grain { opacity: .08; }
body[data-page="experiment"] .eyebrow { color: var(--peach); }
body[data-page="experiment"] .footer { background: var(--ink); color: rgba(255,253,249,.7); border-color: rgba(255,253,249,.1); }
body[data-page="experiment"] .footer__logo { filter: brightness(0) invert(1); opacity: .8; }
body[data-page="experiment"] .nav .nav__links a { color: rgba(255,253,249,.65); }
body[data-page="experiment"] .nav .nav__links a:hover, body[data-page="experiment"] .nav .nav__links a.is-current { color: var(--paper); }
body[data-page="experiment"] .nav__cta { background: var(--paper); color: var(--ink); }
body[data-page="experiment"] .nav__cta:hover { color: var(--paper); }
body[data-page="experiment"] .nav.is-scrolled { background: rgba(22,11,2,.7); box-shadow: 0 0 0 1px rgba(255,253,249,.1); }
body[data-page="experiment"] .menu { background: var(--ink); }
body[data-page="experiment"] .back { color: rgba(255,253,249,.5); }
body[data-page="experiment"] .back:hover { color: var(--peach); }

.xhead { padding: 150px var(--gutter) 80px; }
.xhead__grid { display: grid; grid-template-columns: minmax(0, 1fr) var(--w4); gap: var(--gap); align-items: end; }
.xhead .ahead__meta { color: rgba(255,253,249,.5); }
.xhead__title { font-size: clamp(48px, 7.4vw, 128px); line-height: .92; letter-spacing: -0.055em; font-weight: 200; margin: 0 0 28px; }
.xhead__lede { font-size: clamp(18px, 1.6vw, 23px); color: rgba(255,253,249,.7); max-width: 40ch; margin: 0; }
.xhead__art { border-radius: var(--radius); aspect-ratio: 4/3.2; }
@media (max-width: 900px) { .xhead__grid { grid-template-columns: 1fr; } }

.xnotes { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: var(--gap); padding: 0 var(--gutter) clamp(80px, 10vw, 130px); }
.xnote { padding: clamp(28px, 3vw, 44px); border-radius: var(--radius); box-shadow: inset 0 0 0 1px rgba(255,253,249,.1); }
.xnote__text { font-size: clamp(22px, 2.2vw, 32px); line-height: 1.2; letter-spacing: -0.025em; margin: 0; }
.xnote:first-child .xnote__text { color: var(--peach); }
@media (max-width: 760px) { .xnotes { grid-template-columns: 1fr; } }

.play { padding: 0 var(--gutter) clamp(80px, 10vw, 130px); }
.play__head { display: grid; grid-template-columns: 1fr; margin-bottom: 32px; max-width: var(--w6); }
.play__head .h3 { margin-bottom: 12px; }
.play__head .body { margin: 0; }
.play__stage { border-radius: calc(var(--radius) + 8px); background: #221710; box-shadow: inset 0 0 0 1px rgba(255,253,249,.08); padding: clamp(16px, 2.4vw, 32px); }

.xmeta { display: grid; grid-template-columns: var(--w4) minmax(0, 1fr); gap: var(--gap); align-items: end; padding: 0 var(--gutter) clamp(80px, 10vw, 130px); }
.xpn { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: var(--gap); }
.xpn a { display: flex; flex-direction: column; gap: 8px; padding: 24px; border-radius: 20px; box-shadow: inset 0 0 0 1px rgba(255,253,249,.12); font-size: 20px; letter-spacing: -0.02em; transition: background .4s; }
.xpn a:hover { background: rgba(204,85,0,.18); }
.xpn a:last-child { text-align: right; }
.xpn .mono { color: var(--peach); }
@media (max-width: 900px) { .xmeta, .xpn { grid-template-columns: 1fr; } .xpn a:last-child { text-align: left; } }

/* shared demo controls */
.part { font: inherit; font-size: 14px; padding: 9px 16px; border-radius: 999px; border: 0; background: transparent; color: var(--paper); box-shadow: inset 0 0 0 1px rgba(255,253,249,.2); transition: background .3s var(--ease), color .3s, box-shadow .3s; }
.part:hover { box-shadow: inset 0 0 0 1px var(--peach); }
.part.is-on { background: var(--peach); color: var(--ink); box-shadow: none; }
.presets { display: flex; flex-wrap: wrap; gap: 8px; }
.slider { display: flex; align-items: center; gap: 14px; color: rgba(255,253,249,.55); }
.slider input { flex: 1; }
.knob { display: grid; gap: 8px; color: rgba(255,253,249,.55); }
.knob b { color: var(--peach); font-weight: 500; }
.knob select { font: inherit; font-size: 14px; color: var(--paper); background: #2c1d13; border: 0; box-shadow: inset 0 0 0 1px rgba(255,253,249,.18); border-radius: 12px; padding: 10px 12px; }
input[type="range"] { -webkit-appearance: none; appearance: none; height: 2px; background: rgba(255,253,249,.2); border-radius: 2px; outline: none; }
input[type="range"]::-webkit-slider-thumb { -webkit-appearance: none; width: 18px; height: 18px; border-radius: 50%; background: var(--peach); box-shadow: 0 0 0 6px rgba(248,169,102,.18); cursor: grab; transition: box-shadow .3s; }
input[type="range"]::-moz-range-thumb { width: 18px; height: 18px; border: 0; border-radius: 50%; background: var(--peach); }
input[type="range"]:focus-visible::-webkit-slider-thumb { box-shadow: 0 0 0 6px rgba(248,169,102,.5); }
.readout { display: flex; gap: 24px; margin: 0; color: rgba(255,253,249,.45); flex-wrap: wrap; }
.readout dd { margin: 4px 0 0; color: var(--peach); }

/* density */
.density { display: grid; gap: 24px; }
.density__controls { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 20px 40px; align-items: center; }
.density__controls .slider { flex: 1 1 320px; }
.density__screen { border-radius: 20px; background: var(--paper); padding: clamp(14px, 2vw, 28px); height: 460px; overflow: hidden; }
.mock { --gap: 8px; --fs: 13px; --pad: 10px; color: var(--ink); height: 100%; }
.mock__bar { display: flex; gap: 6px; margin-bottom: calc(var(--gap) * 2); }
.mock__bar i { width: 10px; height: 10px; border-radius: 50%; background: var(--line); }
.mock__head { display: flex; justify-content: space-between; align-items: center; margin-bottom: calc(var(--gap) * 2); }
.mock__head b { height: calc(var(--fs) * 1.8); width: 38%; border-radius: 6px; background: var(--ink); transition: height .5s var(--ease); }
.mock__head span { height: calc(var(--fs) * 1.8); width: 90px; border-radius: 999px; background: var(--ember); transition: height .5s var(--ease); }
.mock__rows { list-style: none; margin: 0; padding: 0; display: grid; gap: var(--gap); transition: gap .5s var(--ease); }
.mock__rows li { display: grid; grid-template-columns: auto 1fr 20%; align-items: center; gap: 14px; padding: var(--pad) 12px; border-radius: 10px; background: var(--paper-2); transition: padding .5s var(--ease); }
.mock__dot { width: calc(var(--fs) * 1.6); height: calc(var(--fs) * 1.6); border-radius: 50%; background: hsl(calc(20 + var(--h)) 90% 60% / .8); transition: width .5s, height .5s; }
.mock__line, .mock__num { height: calc(var(--fs) * .8); width: var(--w); border-radius: 4px; background: rgba(22,11,2,.22); transition: height .5s var(--ease); }
.mock__num { justify-self: end; background: rgba(204,85,0,.45); }

/* prompt anatomy */
.anatomy { display: grid; gap: 24px; }
.anatomy__parts { display: flex; flex-wrap: wrap; gap: 8px; }
.anatomy__out { display: grid; grid-template-columns: 1fr 260px; gap: 24px; align-items: stretch; }
.anatomy__prompt { background: var(--paper); color: var(--ink); border-radius: 20px; padding: clamp(20px, 3vw, 36px); font-family: var(--mono); font-size: 15px; line-height: 1.7; min-height: 320px; }
.anatomy__prompt p { position: relative; margin: 0 0 14px; padding-left: 22px; animation: partIn .5s var(--ease); }
.anatomy__prompt p::before { content: ""; position: absolute; left: 2px; top: .7em; width: 8px; height: 8px; border-radius: 50%; background: var(--ember); }
.anatomy__prompt p.is-core { font-weight: 500; }
.anatomy__prompt p.is-core::before { background: var(--ink); }
.anatomy__prompt p.is-off { display: none; }
@keyframes partIn { from { opacity: 0; transform: translateY(-6px); } }
.anatomy__meter { display: flex; flex-direction: column; gap: 14px; padding: 24px; border-radius: 20px; box-shadow: inset 0 0 0 1px rgba(255,253,249,.12); }
.meter { height: 8px; border-radius: 8px; background: rgba(255,253,249,.1); overflow: hidden; }
.meter span { display: block; height: 100%; background: linear-gradient(90deg, var(--ember), var(--peach)); transform-origin: 0 50%; transition: transform .6s var(--ease); }
.anatomy__verdict { margin: auto 0 0; font-size: 20px; line-height: 1.25; letter-spacing: -0.02em; }
@media (max-width: 760px) { .anatomy__out { grid-template-columns: 1fr; } }

/* spring */
.spring { display: grid; grid-template-columns: 1fr 320px; gap: 24px; }
.spring__stage { position: relative; border-radius: 20px; background: #1a100a; box-shadow: inset 0 0 0 1px rgba(255,253,249,.06); min-height: 380px; overflow: hidden; }
.spring__plot { position: absolute; inset: 0; width: 100%; height: 100%; }
.spring__track { position: absolute; left: 32px; right: 32px; bottom: 36px; height: 2px; background: rgba(255,253,249,.12); }
.spring__puck { position: absolute; top: -14px; left: 0; width: 30px; height: 30px; margin-left: -15px; border-radius: 50%; background: var(--peach); box-shadow: 0 0 40px rgba(248,169,102,.6); }
.spring__controls { display: grid; gap: 20px; align-content: start; }
.spring__stat { color: rgba(255,253,249,.5); margin: 0; }
.spring__stat b { color: var(--peach); font-weight: 500; }
@media (max-width: 860px) { .spring { grid-template-columns: 1fr; } }

/* type lab */
.typelab { display: grid; grid-template-columns: 300px 1fr; gap: 24px; }
.typelab__controls { display: grid; gap: 20px; align-content: start; }
.scale { list-style: none; margin: 0; padding: 16px 0 0; border-top: 1px solid rgba(255,253,249,.1); display: grid; gap: 6px; color: rgba(255,253,249,.5); }
.scale li { display: flex; justify-content: space-between; }
.scale b { color: var(--peach); font-weight: 500; }
.specimen { --base: 17px; --r: 1.25; --lh: 1.5; --measure: 62ch; background: var(--paper); color: var(--ink); border-radius: 20px; padding: clamp(24px, 4vw, 56px); font-size: var(--base); line-height: var(--lh); overflow: hidden; }
.specimen__kicker { color: var(--ember); margin: 0 0 1em; }
.specimen__h1 { font-size: calc(var(--base) * var(--r) * var(--r) * var(--r) * var(--r) * var(--r)); line-height: 1; letter-spacing: -0.045em; font-weight: 300; margin: 0 0 .4em; transition: font-size .4s var(--ease); }
.specimen__h2 { font-size: calc(var(--base) * var(--r) * var(--r)); line-height: 1.15; letter-spacing: -0.02em; font-weight: 600; margin: 0 0 .8em; transition: font-size .4s var(--ease); }
.specimen__p { max-width: var(--measure); margin: 0 0 1.2em; color: var(--ink-2); transition: max-width .4s var(--ease); }
.specimen__small { color: var(--mute); margin: 0; }
@media (max-width: 860px) { .typelab { grid-template-columns: 1fr; } }

/* sketch wall */
.wall { position: relative; height: 560px; border-radius: 20px; background-color: #1a100a; background-image: radial-gradient(rgba(255,253,249,.08) 1px, transparent 1.2px); background-size: 22px 22px; overflow: hidden; touch-action: none; }
.note-card { position: absolute; left: var(--x); top: var(--y); width: min(250px, 60%); min-height: 170px; padding: 18px 20px; border-radius: 16px; background: var(--paper); color: var(--ink); rotate: var(--r); box-shadow: 0 20px 40px -20px rgba(0,0,0,.6); cursor: grab; transition: box-shadow .3s, scale .3s var(--ease); user-select: none; }
.note-card.is-drag { cursor: grabbing; scale: 1.04; box-shadow: 0 40px 60px -20px rgba(0,0,0,.7); z-index: 5; }
.note-card .mono { color: var(--ember); font-size: 10px; }
.note-card p { margin: 10px 0 0; font-size: 18px; line-height: 1.3; letter-spacing: -0.015em; outline: none; min-height: 3.9em; cursor: text; user-select: text; }
.note-card p:empty::before { content: attr(data-ph); color: rgba(22,11,2,.35); }
.note-card--peach { background: var(--apricot); }
.note-card--ember { background: var(--ember); color: var(--paper); }
.note-card--ember .mono { color: var(--paper); }
.note-card--ember p:empty::before { color: rgba(255,253,249,.6); }
.note-card--ink { background: #2c1d13; color: var(--paper); box-shadow: inset 0 0 0 1px rgba(255,253,249,.12), 0 20px 40px -20px rgba(0,0,0,.6); }
.note-card--ink .mono { color: var(--peach); }
.note-card--ink p:empty::before { color: rgba(255,253,249,.35); }
.wall__reset { position: absolute; right: 16px; bottom: 16px; background: rgba(255,253,249,.08); color: rgba(255,253,249,.7); border: 0; padding: 10px 16px; border-radius: 999px; font-size: 11px; }
.wall__reset:hover { background: var(--peach); color: var(--ink); }
@media (max-width: 640px) { .wall { height: 720px; } .note-card { width: 70%; } }

/* responsive mark */
.mark { display: grid; gap: 24px; }
.mark__controls { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: 20px 40px; }
.mark__controls .slider { flex: 1 1 300px; }
.mark__state { color: rgba(255,253,249,.5); margin: 0; }
.mark__state b { color: var(--peach); font-weight: 500; }
.mark__stage { height: 420px; border-radius: 20px; background-color: #1a100a; background-image: linear-gradient(rgba(255,253,249,.05) 1px, transparent 1px), linear-gradient(90deg, rgba(255,253,249,.05) 1px, transparent 1px); background-size: 24px 24px; display: grid; place-items: center; overflow: hidden; }
.mark__box { --w: 80%; width: var(--w); aspect-ratio: 16 / 9; max-height: 90%; border-radius: clamp(8px, 2vw, 22px); display: grid; place-items: center; position: relative; transition: background .5s, width .12s linear; container-type: inline-size; }
.mark__box[data-t="paper"] { background: var(--paper); color: var(--ink); }
.mark__box[data-t="ink"] { background: var(--ink); color: var(--paper); box-shadow: inset 0 0 0 1px rgba(255,253,249,.18); }
.mark__box[data-t="ember"] { background: var(--ember); color: var(--paper); }
.mark__box[data-t="ink"] img, .mark__box[data-t="ember"] img { filter: brightness(0) invert(1); }
.mark__full, .mark__compact, .mark__glyph { position: absolute; inset: 0; display: grid; place-items: center; align-content: center; gap: 14px; opacity: 0; scale: .9; transition: opacity .4s, scale .5s var(--ease); }
.mark__full img { width: 46cqi; }
.mark__full .mono { font-size: max(9px, 2.4cqi); letter-spacing: .3em; opacity: .7; }
.mark__compact img { width: 64cqi; }
.mark__glyph span { width: 34cqi; height: 34cqi; border-radius: 50%; background: var(--ember); }
.mark__box[data-t="ember"] .mark__glyph span { background: var(--paper); }
.mark__box[data-form="full"] .mark__full, .mark__box[data-form="compact"] .mark__compact, .mark__box[data-form="glyph"] .mark__glyph { opacity: 1; scale: 1; }

/* ---------- print: articles read like a clean page ---------- */
@media print {
  .nav, .menu, .grain, .progress, .loader, .handoff, .skip, .cover .hero__gl, .rail, .tools, .pns, .related, .letterbox, .cta, .footer, .peek { display: none !important; }
  body { background: #fff; color: #000; font-size: 12pt; }
  .ahead { padding: 0 0 12pt; max-width: none; }
  .ahead__title { font-size: 28pt; max-width: none; }
  .cover { height: auto; margin: 0 0 18pt; padding: 0; background: none; border-radius: 0; }
  .cover__glyph { display: none; }
  .reader__grid { display: block; padding: 0; }
  .prose { max-width: none; font-size: 12pt; line-height: 1.55; color: #000; }
  .prose__h2 { break-after: avoid; }
  .pull p { color: #000; }
  .pull .sw { color: #000 !important; }
  .byline { break-inside: avoid; }
  a[href^="http"]::after { content: " (" attr(href) ")"; font-size: 9pt; color: #555; }
}