/* «Сломай ядро»: paper, ink, one amber.
 * Layers: page < .fx (the effect itself) < .stage (clean result on paper) < .bar (never dims). */

.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; }

/* ---------- Bar ---------- */
.oops-count { font-family: var(--font-mono); font-size: 0.74rem; background: var(--card); box-shadow: inset 0 0 0 1px var(--line); }
.oops-count b { font-weight: 500; font-variant-numeric: tabular-nums; }
.oops-count.is-bump { animation: count-bump 0.9s var(--ease-out); }
@keyframes count-bump { 0% { background: var(--amber); transform: scale(1.12); } 100% { background: var(--card); transform: scale(1); } }
html[data-fx="null"] .bar { background: none; }

/* ---------- Hero ---------- */
.hero { padding: clamp(110px, 17vh, 170px) var(--pad) clamp(48px, 8vh, 96px); display: grid; gap: clamp(28px, 5vh, 56px); }
.hero__title {
  font: 800 clamp(40px, 6.4vw, 112px)/0.94 var(--font-display); font-stretch: 80%;
  letter-spacing: -0.02em; max-width: 19ch; overflow-wrap: anywhere; min-width: 0;
}
.hero__title .w { display: inline-block; }
@media (min-width: 861px) {
  .hero { grid-template-columns: minmax(0, 1fr) minmax(220px, 22rem); align-items: end; }
  .hero .hero__foot { grid-template-columns: 1fr; gap: 14px; padding-bottom: 0.4em; }
}
.hero__foot { display: grid; grid-template-columns: minmax(0, 1fr) minmax(240px, 25rem); gap: 24px 64px; align-items: end; }
.hero__dmesg { font: 400 0.76rem/1.6 var(--font-mono); color: var(--ink-2); white-space: pre-wrap; overflow-wrap: anywhere; }
.hero__dmesg b { font-weight: 500; color: var(--ink); background: linear-gradient(transparent 58%, rgba(232, 137, 43, 0.5) 58%); }
.hero__side { color: var(--ink); font-size: clamp(1.05rem, 1.3vw, 1.25rem); line-height: 1.4; }
.hero__meta { font: 400 0.72rem/1.6 var(--font-mono); color: var(--ink-2); }

/* ---------- Rack of four instruments, rows aligned by subgrid ---------- */
.rack {
  display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); column-gap: 14px; row-gap: 0;
  padding: 0 var(--pad) clamp(90px, 16vh, 180px);
}
.drv {
  position: relative; grid-row: span 4; display: grid; grid-template-rows: subgrid; grid-template-columns: minmax(0, 1fr); row-gap: 18px;
  padding: 22px 22px 24px; margin-bottom: 14px; border-radius: var(--radius); background: var(--card);
}
.drv__head { display: grid; gap: 6px; align-content: start; }
.drv__name { font: 800 clamp(26px, 2.1vw, 36px)/0.95 var(--font-display); font-stretch: 80%; letter-spacing: -0.015em; }
.drv__path { font: 400 0.64rem/1.3 var(--font-mono); color: var(--ink-2); overflow-wrap: anywhere; }
.drv__face {
  position: relative; display: grid; place-items: center; height: 196px; padding: 16px;
  border-radius: var(--radius-s); background: var(--paper-2);
}
.drv__ctl { display: flex; flex-wrap: wrap; align-items: center; gap: 10px; min-height: 48px; }
.drv__hint { font-size: 0.88rem; color: var(--ink-2); align-self: start; }
.drv__log { font: 400 0.66rem/1.5 var(--font-mono); color: var(--ink-2); overflow-wrap: anywhere; }
.drv .pill { min-height: 44px; }
.drv.is-patched .drv__face::after {
  content: "пропатчено"; position: absolute; top: 10px; right: 10px;
  padding: 6px 10px; border-radius: 999px; background: var(--amber); color: var(--ink);
  font: 500 0.6rem/1 var(--font-mono); text-transform: uppercase;
}

/* display */
.lcd { width: 100%; display: grid; grid-template-columns: repeat(16, minmax(0, 1fr)); gap: 2px; }
.lcd span {
  display: grid; place-items: center; aspect-ratio: 5 / 8; border-radius: 2px;
  background: rgba(18, 20, 23, 0.06); font: 500 clamp(0.56rem, 0.78vw, 0.86rem)/1 var(--font-mono); text-transform: uppercase;
}
.lcd span.is-cursor { background: var(--amber); animation: blink 1s steps(1) infinite; }
@keyframes blink { 50% { background: rgba(18, 20, 23, 0.06); } }
.send { flex-wrap: nowrap; gap: 4px; padding: 4px; border-radius: 999px; background: var(--paper-2); }
.send__field { flex: 1 1 auto; min-width: 0; min-height: 40px; padding: 0 12px; border: 0; background: transparent; color: var(--ink); font: 400 0.88rem/1 var(--font-body); }
.send__field::placeholder { color: var(--ink-2); }
.send__field:focus-visible { outline-offset: 0; border-radius: 999px; }
.send .pill { min-height: 40px; padding: 0 14px; }

/* mmc */
.mmc { display: grid; justify-items: center; gap: 8px; }
.mmc span { font: 800 clamp(64px, 6vw, 104px)/0.85 var(--font-display); font-stretch: 75%; letter-spacing: -0.02em; font-variant-numeric: tabular-nums; }
.mmc small { font: 400 0.66rem/1 var(--font-mono); color: var(--ink-2); }
.irq { display: inline-flex; gap: 6px; }
.irq i { width: 10px; height: 10px; border-radius: 50%; background: var(--paper-2); box-shadow: inset 0 0 0 1px var(--line); transition: background-color 0.2s; }
.irq i.on { background: var(--amber); box-shadow: none; }

/* fwnode */
.dock { background: repeating-linear-gradient(135deg, var(--paper-2) 0 10px, #e8eae6 10px 20px); }
.node {
  position: relative; z-index: 2; display: grid; gap: 6px; padding: 14px 18px; border: 0; border-radius: 14px;
  background: var(--card); color: var(--ink); text-align: left; cursor: grab; touch-action: none; user-select: none;
  box-shadow: 0 0 0 1px var(--line), 0 12px 24px -16px rgba(18, 20, 23, 0.55);
}
.node.is-drag { cursor: grabbing; z-index: 40; box-shadow: 0 0 0 1px var(--line), 0 26px 40px -18px rgba(18, 20, 23, 0.5); }
.node.is-home { transition: transform 0.5s var(--ease-out); }
.node__name { font: 500 0.72rem/1.2 var(--font-mono); }
.node__ref { font: 400 0.64rem/1 var(--font-mono); color: var(--ink-2); }
.node__ref b { color: var(--amber-ink); font-weight: 500; }

/* gpio */
.gpio { grid-auto-flow: column; justify-content: center; gap: 18px; }
.switch {
  position: relative; flex: none; width: 112px; height: 58px; padding: 0; border: 0; border-radius: 999px;
  background: var(--card); cursor: pointer; transition: background-color 0.3s var(--ease-out); box-shadow: inset 0 0 0 1px var(--line);
}
.switch[aria-checked="true"] { background: var(--ink); box-shadow: none; }
.switch__knob { position: absolute; top: 5px; left: 5px; width: 48px; height: 48px; border-radius: 50%; background: var(--paper-2); transition: transform 0.3s var(--ease-out), background-color 0.3s; }
.switch[aria-checked="true"] .switch__knob { transform: translateX(54px); background: var(--amber); }
.gpio__state { font: 800 clamp(26px, 2.2vw, 36px)/1 var(--font-display); font-stretch: 80%; min-width: 4.4ch; }

/* ---------- Kernel section head ---------- */
.khead { display: grid; grid-template-columns: minmax(0, 1fr) minmax(240px, 25rem); align-items: end; gap: 24px 64px; padding: clamp(40px, 8vh, 100px) var(--pad) clamp(28px, 4vw, 48px); border-top: 1px solid var(--line); margin: 0 var(--pad); padding-left: 0; padding-right: 0; }
.khead__title { display: flex; align-items: flex-end; gap: 18px; margin: 0; }
.khead__num { font: 800 clamp(80px, 9vw, 150px)/0.8 var(--font-display); font-stretch: 75%; letter-spacing: -0.04em; }
.khead__cap { font: 700 clamp(22px, 2vw, 32px)/1.05 var(--font-display); font-stretch: 85%; max-width: 6em; padding-bottom: 0.3em; }
.khead__side { display: grid; gap: 16px; }
.khead__side p { color: var(--ink-2); }
.khead__side .pill { justify-self: start; }

/* ---------- lsmod: a calm summary, the full list on demand ---------- */
.lsmod { padding: 0 var(--pad) clamp(70px, 12vh, 140px); }
.subsys { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: 8px; align-content: start; }
.subsys__item {
  display: inline-flex; align-items: center; gap: 10px; padding: 9px 14px; border: 0; border-radius: 999px;
  background: var(--card); box-shadow: inset 0 0 0 1px var(--line); cursor: pointer;
  color: var(--ink); font: 400 0.78rem/1 var(--font-mono);
  transition: background-color 0.2s, box-shadow 0.2s, color 0.2s;
}
.subsys__item b { font: 700 1rem/1 var(--font-display); font-stretch: 85%; color: var(--ink-2); transition: color 0.2s; }
.subsys__item:hover { box-shadow: inset 0 0 0 1px var(--ink-2); }
.subsys__item:focus-visible { outline: 2px solid var(--amber); outline-offset: 2px; }
/* The pressed chip is the active filter. */
.subsys__item[aria-pressed="true"] { background: var(--ink); box-shadow: none; color: var(--paper); }
.subsys__item[aria-pressed="true"] b { color: var(--amber); }
@media (pointer: coarse) { .subsys__item { min-height: 44px; } }
.subsys { margin-bottom: clamp(40px, 6vw, 72px); }
.lsmod__sub { margin: 0 0 16px; font: 700 clamp(22px, 2vw, 30px)/1.05 var(--font-display); font-stretch: 85%; }
.mods { list-style: none; margin: 0; padding: 0; border-top: 1px solid var(--ink); }
.mod {
  display: grid; grid-template-columns: 7.5rem 11rem minmax(0, 1fr) auto; align-items: center; gap: 16px;
  padding: 14px 6px; border-bottom: 1px solid var(--line);
}
.mod__date { font: 400 0.7rem/1.3 var(--font-mono); color: var(--ink-2); font-variant-numeric: tabular-nums; }
.mod__sys { font: 700 1.02rem/1.1 var(--font-display); font-stretch: 85%; overflow-wrap: anywhere; }
.mod__subj { font: 400 0.76rem/1.45 var(--font-mono); min-width: 0; overflow-wrap: anywhere; }
.mod__link { min-height: 32px; padding: 0 12px; font: 400 0.68rem/1 var(--font-mono); background: transparent; box-shadow: inset 0 0 0 1px var(--line); }
.mod.is-found { background: color-mix(in srgb, var(--amber) 22%, transparent); border-bottom-color: var(--amber); }
.mod.is-found .mod__link { background: var(--amber); box-shadow: none; }
.lsmod__toggle { margin-top: 20px; }
.mods__all { margin-top: 20px; }
.mods__all:not([hidden]) { animation: mods-open 0.5s var(--ease-out); }
@keyframes mods-open { from { opacity: 0; transform: translateY(-8px); } }
.foot a { color: var(--ink); text-decoration-color: var(--amber); text-underline-offset: 3px; }

/* ---------- Effects layer ---------- */
.fx { position: fixed; inset: 0; z-index: 16; pointer-events: none; overflow: hidden; }
.fx > * { position: absolute; margin: 0; }
.is-read { background-color: rgba(232, 137, 43, 0.22); transition: background-color 0.3s; border-radius: 6px; }

/* 1. OOB: a buffer frame stretches over the page, a hexdump pours out of the display */
.oob-fill { background: var(--paper); transform-origin: 0 0; transition: transform 2.4s var(--ease-in-out), opacity 0.4s; }
.oob-edge { background: var(--amber); transform-origin: 0 0; transition: transform 2.4s var(--ease-in-out), opacity 0.4s; }
.oob-edge--t, .oob-edge--b { height: 2px; }
.oob-edge--l, .oob-edge--r { width: 2px; }
.oob-fill.is-back, .oob-edge.is-back, .oob-offset.is-back { transition-duration: 0.7s; transition-timing-function: var(--ease-out); }
.oob-tag {
  padding: 7px 12px; border-radius: 999px; background: var(--amber); color: var(--ink);
  font: 500 0.7rem/1 var(--font-mono); white-space: nowrap;
  opacity: 0; transform: translateY(6px); transition: opacity 0.3s, transform 0.4s var(--ease-out);
}
.oob-tag.is-in { opacity: 1; transform: none; }
.oob-offset { font: 400 0.66rem/1 var(--font-mono); color: var(--amber-ink); opacity: 0; transition: transform 2.4s var(--ease-in-out), opacity 0.3s 2.2s; }
/* The byte counter shows up only once the frame has opened, so it never slides across the rows. */
.oob-offset.is-in { opacity: 1; }
.oob-offset.is-back { transition-delay: 0s; }
.oob-rows { inset: 0; }
.oob-row {
  position: absolute; margin: 0; white-space: pre; font: 400 clamp(0.58rem, 0.74vw, 0.72rem)/1 var(--font-mono); color: var(--ink-2);
  opacity: 0; transform: translateX(-10px); transition: opacity 0.25s, transform 0.5s var(--ease-out);
}
.oob-row.is-in { opacity: 1; transform: none; }
.oob-row .a { color: #9a9ea5; }
.oob-row .h { color: var(--ink); }
.oob-row .t { color: var(--amber-ink); }
.oob-row:first-child .a { color: var(--ink); background: var(--amber); border-radius: 3px; padding: 0 3px; }

/* 2. NULL: a well at address 0x0, everything dereferenced falls into it */
.null-hole { left: 0; top: 0; width: 0; height: 0; transform-origin: 0 0; transform: scale(var(--gulp, 1)); }
.null-hole i { position: absolute; left: 0; top: 0; border-radius: 50%; transform: translate(-50%, -50%) scale(0); transition: transform 0.9s var(--ease-out); }
.null-hole__swirl { width: min(80vmin, 620px); height: min(80vmin, 620px); }
.null-hole__swirl::before {
  content: ""; position: absolute; inset: 0; border-radius: 50%;
  background: repeating-conic-gradient(from 0deg, rgba(232, 137, 43, 0.6) 0 2.5deg, transparent 2.5deg 15deg);
  -webkit-mask: radial-gradient(circle, transparent 9%, #000 11%, #000 34%, transparent 68%);
  mask: radial-gradient(circle, transparent 9%, #000 11%, #000 34%, transparent 68%);
  animation: swirl 2.2s linear infinite;
}
.null-hole__core { width: 64px; height: 64px; background: radial-gradient(circle, var(--ink) 0 58%, var(--amber) 60% 70%, rgba(232, 137, 43, 0) 72%); }
.null-hole.is-open i { transform: translate(-50%, -50%) scale(1); }
@keyframes swirl { to { transform: rotate(-360deg); } }
.null-addr {
  left: 22px; top: 74px; padding: 6px 10px; border-radius: 8px; background: var(--amber);
  font: 500 clamp(0.7rem, 1vw, 0.86rem)/1 var(--font-mono); white-space: pre; opacity: 0; transition: opacity 0.3s;
}
.null-addr.is-in { opacity: 1; }

/* 3. Leak: copies of the node that are never freed */
.ghost {
  display: grid; gap: 4px; padding: 10px 14px; border-radius: 14px; background: var(--card);
  box-shadow: 0 0 0 1px var(--line), 0 12px 24px -16px rgba(18, 20, 23, 0.55);
  font: 500 0.64rem/1.2 var(--font-mono); white-space: nowrap;
  opacity: 0; rotate: var(--rot); transition: transform 0.55s var(--ease-out), opacity 0.25s;
}
.ghost.is-in { opacity: 1; }
.ghost.is-free { opacity: 0 !important; transform: scale(0.6) !important; transition-duration: 0.3s; }
.ghost__ref { color: var(--ink-2); }
.ghost__ref b { color: var(--amber-ink); font-weight: 500; }
.leak-head {
  left: var(--pad); bottom: 22px; z-index: 2; display: flex; align-items: center; gap: 14px;
  padding: 8px 20px 8px 8px; border-radius: 999px; background: var(--paper); box-shadow: 0 16px 40px -20px rgba(18, 20, 23, 0.5);
  opacity: 0; transform: translateY(10px); transition: opacity 0.3s, transform 0.4s var(--ease-out);
}
.leak-head.is-in { opacity: 1; transform: none; }
.leak-head__num {
  min-width: 2.2ch; padding: 4px 12px; border-radius: 999px; background: var(--amber); text-align: center;
  font: 900 clamp(34px, 3.6vw, 56px)/1 var(--font-display); font-stretch: 75%; font-variant-numeric: tabular-nums;
}
.leak-head__line { font: 500 clamp(0.66rem, 0.9vw, 0.82rem)/1.3 var(--font-mono); }
.leak-put {
  padding: 8px 14px; border-radius: 999px; background: var(--amber); font: 500 0.74rem/1 var(--font-mono); white-space: nowrap;
  translate: -50% -100%; opacity: 0; transform: translateY(14px) scale(0.8); transition: opacity 0.3s, transform 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
}
.leak-put.is-in { opacity: 1; transform: none; }

/* 4. Resume: the page switches off like a CRT, wakes on a sagging supply */
.crt { transition: transform 0.5s cubic-bezier(0.7, 0, 0.84, 0), opacity 0.5s; }
html.is-crt-off .crt { transform: scale(1, 0.004); opacity: 0.9; }
.crt-dark { inset: 0; background: var(--night); opacity: 0; transition: opacity 0.3s; }
.crt-dark.is-on { opacity: 1; transition-delay: 0.25s; }
.crt-line { left: 0; right: 0; top: 50%; height: 3px; margin-top: -1px; background: var(--paper); box-shadow: 0 0 18px 2px rgba(236, 238, 235, 0.55); transform: scaleX(0); opacity: 0; transition: transform 0.45s var(--ease-out), opacity 0.3s; }
.crt-line.is-on { transform: scaleX(1); opacity: 1; transition-delay: 0.3s; }
.crt-line.is-on.is-dot { transform: scaleX(0.006); transition: transform 0.35s var(--ease-in-out); background: var(--amber); }
.crt-pm { left: 0; right: 0; top: calc(50% + 18px); text-align: center; font: 400 0.72rem/1 var(--font-mono); color: var(--paper); opacity: 0; transition: opacity 0.3s; }
.crt-pm.is-in { opacity: 0.72; }
.is-sag {
  transform-origin: 0 0; transform: translateY(var(--sag)) rotate(var(--tilt));
  transition: transform 1.6s cubic-bezier(0.5, 0, 0.75, 0.4), opacity 0.4s;
  animation: brownout var(--fl) steps(1) var(--fd) infinite;
}
.is-sag.is-dead { animation: none; opacity: 0.2; transition: transform 1.6s cubic-bezier(0.5, 0, 0.75, 0.4), opacity 1.2s 0.6s; }
@keyframes brownout { 0%, 100% { opacity: 1; } 8% { opacity: 0.45; } 11% { opacity: 0.9; } 37% { opacity: 0.6; } 40% { opacity: 1; } 71% { opacity: 0.35; } 73% { opacity: 0.85; } }
.is-wake { transform-origin: 0 0; transition: transform 0.9s cubic-bezier(0.34, 1.4, 0.64, 1) var(--wake), opacity 0.6s var(--wake); }
.volt {
  right: var(--pad); bottom: 22px; display: grid; gap: 8px; width: min(300px, calc(100vw - 2 * var(--pad)));
  padding: 16px 18px; border-radius: var(--radius-s); background: var(--paper); box-shadow: 0 16px 40px -20px rgba(18, 20, 23, 0.5);
  opacity: 0; transform: translateY(10px); transition: opacity 0.3s, transform 0.4s var(--ease-out);
}
.volt.is-in { opacity: 1; transform: none; }
.volt__label { font: 400 0.64rem/1 var(--font-mono); color: var(--ink-2); text-transform: uppercase; }
.volt__num { font: 900 clamp(48px, 5vw, 80px)/0.9 var(--font-display); font-stretch: 75%; font-variant-numeric: tabular-nums; }
.volt__bar { height: 6px; border-radius: 99px; background: var(--paper-2); overflow: hidden; }
.volt__bar i { display: block; height: 100%; background: var(--amber); transform-origin: 0 50%; }

/* ---------- Stage: the clean result on paper ---------- */
.stage {
  position: fixed; inset: 0; z-index: 18; overflow-y: auto; overscroll-behavior: contain;
  background: var(--paper); opacity: 0; transition: opacity 0.45s var(--ease-out);
}
.stage[hidden] { display: none; }
.stage.is-open { opacity: 1; }
.stage__inner {
  min-height: 100%; display: grid; grid-template-columns: minmax(0, 1.5fr) minmax(300px, 1fr); gap: 40px clamp(40px, 6vw, 110px);
  align-items: center; padding: clamp(110px, 16vh, 170px) var(--pad) clamp(40px, 8vh, 80px);
  transition: opacity 0.3s, transform 0.4s var(--ease-out);
}
.stage__bug { display: grid; gap: clamp(36px, 5vh, 56px); min-width: 0; }
.stage__fix { display: grid; gap: 16px; align-content: end; padding-top: 22px; border-top: 1px solid var(--line); }
.stage__inner > * > * { opacity: 0; transform: translateY(16px); }
.stage.is-open .stage__inner > * > * { animation: rise 0.6s var(--ease-out) forwards; }
.stage.is-open .stage__bug > :nth-child(2) { animation-delay: 0.25s; }
.stage.is-open .stage__fix > * { animation-delay: calc(0.35s + var(--k, 0) * 0.06s); }
.stage__fix > :nth-child(2) { --k: 1; } .stage__fix > :nth-child(3) { --k: 2; } .stage__fix > :nth-child(4) { --k: 3; } .stage__fix > :nth-child(5) { --k: 4; }
@keyframes rise { to { opacity: 1; transform: none; } }
.stage.is-patching .stage__inner { opacity: 0; transform: translateY(-12px); }

.stage__kicker { font: 700 clamp(22px, 1.8vw, 28px)/1 var(--font-display); font-stretch: 85%; }
.stage__subject { font: 500 clamp(0.95rem, 1.3vw, 1.22rem)/1.45 var(--font-mono); overflow-wrap: anywhere; }
.stage__what { color: var(--ink-2); font-size: 1rem; max-width: 34rem; }
.stage__meta { display: flex; flex-wrap: wrap; align-items: center; gap: 10px 14px; font: 400 0.72rem/1 var(--font-mono); color: var(--ink-2); }
.stage__meta .pill { font-family: var(--font-mono); font-size: 0.72rem; min-height: 36px; }
.stage__apply { justify-self: start; margin-top: 8px; }

.trace { margin: 0; font: 400 clamp(0.64rem, 0.78vw, 0.76rem)/1.95 var(--font-mono); color: var(--ink-2); white-space: pre-wrap; overflow-wrap: anywhere; }
.trace b { font-weight: 500; color: var(--ink); }
.trace mark { background: var(--amber); color: var(--ink); padding: 2px 5px; border-radius: 4px; }

.stage__patch {
  position: absolute; left: 50%; top: 50%; translate: -50% -50%; margin: 0; max-width: calc(100vw - 32px);
  padding: 14px 22px; border-radius: 14px; background: rgba(232, 137, 43, 0.28);
  font: 500 clamp(0.86rem, 2vw, 1.7rem)/1.3 var(--font-mono); white-space: pre; overflow: hidden;
  clip-path: inset(0 100% 0 0); opacity: 0; transition: clip-path 0.9s steps(30), opacity 0.2s;
}
.stage__patch.is-in { clip-path: inset(0 0 0 0); opacity: 1; }

/* ---------- Punch: one typographic hit per bug ---------- */
.punch { font: 900 clamp(68px, 10.5vw, 188px)/0.84 var(--font-display); font-stretch: 75%; letter-spacing: -0.03em; min-width: 0; }
.punch span { display: inline-block; }
.pk-line { display: block !important; white-space: nowrap; }

/* out-of-bounds: everything after the amber edge spills further and further */
.pk-edge { width: 0.06em; height: 0.74em; margin: 0 0.08em 0 0.1em; background: var(--amber); vertical-align: baseline; border-radius: 2px; }
.pk-spill { transform: translate(calc(var(--i) * 0.08em), calc(var(--i) * var(--i) * 0.008em)); opacity: calc(1 - var(--i) * 0.16); }
.stage.is-open .pk-spill { animation: spill 0.9s var(--ease-out) both; animation-delay: calc(0.2s + var(--i) * 0.07s); }
@keyframes spill { from { transform: translateX(-0.5em); opacity: 0; } }

/* NULL: the word shrinks into the point 0x0 */
.pk-null { display: inline-flex !important; align-items: baseline; font-size: 1.7em; letter-spacing: -0.02em; }
.pk-n { font-size: calc(1em * var(--s)); }
.pk-dot { width: 0.11em; height: 0.11em; margin-left: 0.06em; border-radius: 50%; background: var(--amber); }
.pk-zero { margin-left: 0.18em; font: 500 clamp(0.8rem, 1.2vw, 1.05rem)/1 var(--font-mono); color: var(--amber-ink); letter-spacing: 0; }
.stage.is-open .pk-n { animation: shrink-in 0.8s var(--ease-out) both; animation-delay: calc(0.15s + var(--i) * 0.08s); }
.stage.is-open .pk-dot { animation: dot-in 0.5s cubic-bezier(0.34, 1.56, 0.64, 1) 0.6s both; }
@keyframes shrink-in { from { transform: translateX(0.6em) scale(1.6); opacity: 0; } }
@keyframes dot-in { from { transform: scale(0); } }

/* leak: the word leaks copies of itself */
.pk-dup { display: inline-grid !important; margin-bottom: 0.3em; }
.pk-dup > span { grid-area: 1 / 1; }
.pk-dup > .c { color: transparent; -webkit-text-stroke: 1.5px var(--ink); transform: translate(calc(var(--i) * 0.07em), calc(var(--i) * 0.07em)); opacity: calc(1 - var(--i) * 0.2); }
.pk-dup > .o { position: relative; z-index: 1; }
.pk-count { margin-left: 0.32em; font-size: 0.26em; color: var(--amber-ink); vertical-align: top; letter-spacing: 0; }
.stage.is-open .pk-dup > .c { animation: dup 0.7s var(--ease-out) both; animation-delay: calc(0.2s + var(--i) * 0.1s); }
@keyframes dup { from { transform: none; opacity: 0; } }

/* -EIO: the letters sag and flicker, one never comes back */
.pk-sag { transform-origin: 0 0; transform: translateY(calc(var(--i) * 0.06em)) rotate(calc(var(--i) * 3.5deg)); }
.pk-sag.f { animation: brownout 1.7s steps(1) infinite; }
.pk-sag.d { opacity: 0.18; }
.stage[data-kind="resume"] .punch { font-size: clamp(110px, 16vw, 290px); letter-spacing: 0.01em; }
.pk-sub { display: block !important; margin-top: 1.1em; font-size: 0.15em; letter-spacing: 0; font-weight: 700; color: var(--ink-2); }

/* ---------- Small screens ---------- */
@media (max-width: 1180px) {
  .rack { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 860px) {
  .hero__foot, .khead { grid-template-columns: 1fr; }
  .hero__title { font-size: clamp(36px, 10.5vw, 64px); }
  .stage__inner { grid-template-columns: minmax(0, 1fr); align-items: start; align-content: start; padding-top: 96px; gap: 36px; }
  .punch { font-size: clamp(58px, 19vw, 150px); }
  .mod { grid-template-columns: minmax(0, 1fr) auto; gap: 4px 12px; padding: 12px 4px; }
  .mod__date { grid-column: 1; grid-row: 1; }
  .mod__sys { grid-column: 1; grid-row: 2; }
  .mod__subj { grid-column: 1 / -1; grid-row: 3; }
  .mod__link { grid-column: 2; grid-row: 1 / span 2; }
  .leak-head { left: 10px; right: 10px; }
  .volt { left: 10px; right: 10px; width: auto; }
}
@media (max-width: 640px) {
  /* Phones: the four drivers become a swipeable row instead of a 2000px column */
  .rack {
    grid-template-columns: none; grid-auto-flow: column; grid-auto-columns: 86%;
    overflow-x: auto; scroll-snap-type: x mandatory; scroll-padding-inline: var(--pad);
    padding-bottom: 40px; scrollbar-width: none; overscroll-behavior-x: contain;
  }
  .rack::-webkit-scrollbar { display: none; }
  .drv { scroll-snap-align: start; margin-bottom: 0; }
  .drv__face { height: 170px; }
  .lcd span { font-size: 0.62rem; }
  /* Phones: the switch and its state stack, so «работает» never touches the edge */
  .gpio { grid-auto-flow: row; justify-items: center; gap: 10px; }
  .gpio__state { min-width: 0; font-size: 26px; }
  /* Phones: sections sit closer, a half-empty screen between them reads as a broken page */
  .facts { padding-block: 40px 24px; }
  .projects { padding-top: 64px; padding-bottom: 48px; }
  .contact { padding-top: 48px; }
}

/* Header counter: short on small screens so the bar never overflows */
@media (max-width: 860px) {
  .oops-count { padding: 0 12px; min-height: 36px; font-size: 0.72rem; }
  .oops-count__label { display: none; }
}