:root {
  --ink: #07080c;
  --ink-2: #0b0e15;
  --panel: #111622;
  --panel-2: #192030;
  --line: #293248;
  --neon: #ff2f45;
  --neon-soft: #ff6274;
  --cyan: #35e0ff;
  --amber: #ffc94d;
  --accent: var(--neon);
  --accent-soft: var(--neon-soft);
  --accent-rgb: 255, 47, 69;
  --text: #f2f5ff;
  --text-dim: #9ca8c0;
  --text-faint: #667189;
  --shadow: 0 24px 70px rgba(0, 0, 0, .58);
  --glow-neon: 0 0 18px rgba(var(--accent-rgb), .55), 0 0 48px rgba(var(--accent-rgb), .2);
  --glow-cyan: 0 0 18px rgba(53, 224, 255, .44);
  --radius: 18px;
  --radius-sm: 10px;
  --wrap: 1120px;
  --font-display: "Press Start 2P", "Courier New", ui-monospace, monospace;
  --font-body: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
}

html[data-accent="cyan"] {
  --accent: #35e0ff;
  --accent-soft: #8bedff;
  --accent-rgb: 53, 224, 255;
}
html[data-accent="amber"] {
  --accent: #ffc94d;
  --accent-soft: #ffdda0;
  --accent-rgb: 255, 201, 77;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; background: var(--ink); }
body {
  margin: 0;
  background:
    radial-gradient(circle at 15% 10%, rgba(53, 224, 255, .055), transparent 28rem),
    var(--ink);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.62;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 100;
  pointer-events: none;
  background:
    repeating-linear-gradient(to bottom, transparent 0 2px, rgba(0,0,0,.14) 2px 4px),
    radial-gradient(110% 80% at 50% 0%, transparent 45%, rgba(0,0,0,.6));
  opacity: .7;
  mix-blend-mode: multiply;
}
img { display: block; max-width: 100%; }
a { color: var(--cyan); text-decoration: none; }
a:hover { text-decoration: underline; }
button { font: inherit; }
.wrap { width: min(100% - 2.5rem, var(--wrap)); margin-inline: auto; }
.skip {
  position: fixed;
  left: -9999px;
  top: .5rem;
  z-index: 300;
  padding: .7rem 1rem;
  background: var(--accent);
  color: #07080c;
  border-radius: var(--radius-sm);
  font-weight: 800;
}
.skip:focus { left: .5rem; }
:focus-visible { outline: 3px solid var(--cyan); outline-offset: 3px; border-radius: 4px; }

.masthead {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(7, 8, 12, .84);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}
.masthead__inner {
  min-height: 66px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}
.wordmark {
  font-family: var(--font-display);
  font-size: clamp(.78rem, 2.6vw, 1rem);
  color: var(--text);
  text-shadow: var(--glow-neon);
}
.wordmark span { color: var(--accent); }
.wordmark:hover { text-decoration: none; }
.nav { display: flex; gap: clamp(.6rem, 3vw, 1.4rem); align-items: center; }
.nav a {
  color: var(--text-dim);
  border-bottom: 2px solid transparent;
  padding: .55rem .1rem;
  font-size: .78rem;
  font-weight: 800;
  letter-spacing: .09em;
  text-transform: uppercase;
}
.nav a:hover,
.nav a:focus-visible,
.nav a[aria-current="page"] { color: var(--text); border-bottom-color: var(--accent); text-decoration: none; }

.btn {
  display: inline-flex;
  justify-content: center;
  align-items: center;
  gap: .55rem;
  border: 2px solid transparent;
  border-radius: var(--radius-sm);
  padding: 1.15em 1.55em;
  cursor: pointer;
  font-family: var(--font-display);
  font-size: clamp(.62rem, 1.8vw, .76rem);
  line-height: 1.1;
  text-decoration: none;
  transition: transform .14s ease, box-shadow .18s ease, border-color .18s ease, background .18s ease;
}
.btn:hover { transform: translateY(-2px); text-decoration: none; }
.btn:active { transform: translateY(0); }
.btn--play { background: var(--accent); color: #07080c; box-shadow: var(--glow-neon); }
.btn--play:hover { background: var(--accent-soft); }
.btn--ghost { background: rgba(255,255,255,.035); border-color: var(--line); color: var(--text); }
.btn--ghost:hover { border-color: var(--cyan); box-shadow: var(--glow-cyan); }
.text-link {
  color: var(--accent);
  font-family: var(--font-display);
  font-size: .62rem;
  line-height: 1.5;
  letter-spacing: .07em;
}
.eyebrow {
  margin: 0 0 1rem;
  color: var(--cyan);
  font-family: var(--font-display);
  font-size: .58rem;
  letter-spacing: .18em;
  line-height: 1.7;
  text-transform: uppercase;
  text-shadow: var(--glow-cyan);
}

/* NFC boot */
.boot[hidden] { display: none; }
.boot {
  position: fixed;
  inset: 0;
  z-index: 250;
  display: grid;
  place-items: center;
  overflow: hidden;
  background: #030407;
  padding: 1.25rem;
}
.boot__grid {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(rgba(53,224,255,.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(53,224,255,.08) 1px, transparent 1px);
  background-size: 42px 42px;
  transform: perspective(520px) rotateX(62deg) scale(1.7) translateY(18%);
  transform-origin: center bottom;
  mask-image: linear-gradient(to bottom, transparent, #000 35%);
  animation: grid-pulse 2.5s linear infinite;
}
.boot__terminal {
  position: relative;
  width: min(100%, 680px);
  padding: clamp(1.5rem, 6vw, 3.5rem);
  border: 1px solid rgba(53,224,255,.32);
  border-radius: 4px;
  background: rgba(4,7,12,.9);
  box-shadow: 0 0 80px rgba(53,224,255,.11), inset 0 0 50px rgba(53,224,255,.025);
  text-align: center;
}
.boot__status {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: .55rem;
  color: var(--cyan);
  font-family: var(--font-display);
  font-size: .52rem;
  letter-spacing: .13em;
}
.boot__status span {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #65ff9e;
  box-shadow: 0 0 12px #65ff9e;
  animation: blink .8s steps(1) infinite;
}
.boot__lines {
  min-height: 7.5rem;
  margin: 2rem 0 1rem;
  color: var(--text-dim);
  text-align: left;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: .82rem;
}
.boot__lines p,
.boot__achievement,
.boot__enter { opacity: 0; transform: translateY(5px); transition: opacity .3s ease, transform .3s ease; }
.boot .is-visible { opacity: 1; transform: none; }
.boot--leaving { opacity: 0; transition: opacity .26s ease; }
.boot h1 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 10vw, 4.5rem);
  line-height: 1.28;
  letter-spacing: -.03em;
}
.boot h1 em { color: var(--accent); font-style: normal; text-shadow: var(--glow-neon); }
.boot__meter {
  height: 7px;
  margin: 1.7rem 0 1.2rem;
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--ink);
}
.boot__meter span {
  display: block;
  width: 0;
  height: 100%;
  background: linear-gradient(90deg, var(--cyan), var(--accent));
  box-shadow: var(--glow-neon);
}
.boot:not([hidden]) .boot__meter span { animation: boot-load 2.1s 1s ease forwards; }
.boot__achievement {
  min-height: 2.5rem;
  color: var(--amber);
  font-family: var(--font-display);
  font-size: clamp(.5rem, 2.5vw, .68rem);
  line-height: 1.7;
}
.boot__enter { margin-top: .7rem; }
.boot__skip {
  display: block;
  margin: 1.1rem auto 0;
  border: 0;
  background: transparent;
  color: var(--text-faint);
  cursor: pointer;
  font-size: .78rem;
  text-decoration: underline;
}
@keyframes boot-load { to { width: 100%; } }
@keyframes blink { 50% { opacity: .2; } }
@keyframes grid-pulse { to { background-position: 0 42px, 42px 0; } }

/* player profile */
.profile-hero { position: relative; min-height: calc(100svh - 66px); display: grid; align-items: center; overflow: hidden; }
.profile-hero__backdrop {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(7,8,12,.94), rgba(7,8,12,.58) 58%, rgba(7,8,12,.82)),
    linear-gradient(to bottom, rgba(7,8,12,.25), var(--ink)),
    url("../img/library-bg.jpg") center / cover;
  filter: saturate(1.15);
  transform: scale(1.02);
}
.profile-hero__inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1.45fr) minmax(250px, .65fr);
  gap: clamp(1.2rem, 4vw, 2.4rem);
  align-items: stretch;
  padding-block: clamp(2.5rem, 8vw, 5.5rem);
}
.player-card,
.mission-card {
  border: 1px solid rgba(255,255,255,.13);
  background: linear-gradient(145deg, rgba(17,22,34,.93), rgba(8,11,18,.94));
  box-shadow: var(--shadow);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}
.player-card { position: relative; border-radius: var(--radius); padding: clamp(1.25rem, 5vw, 2.6rem); overflow: hidden; }
.player-card::after {
  content: "";
  position: absolute;
  width: 250px;
  height: 250px;
  right: -110px;
  bottom: -110px;
  border: 30px solid rgba(var(--accent-rgb), .08);
  transform: rotate(45deg);
}
.player-card__top,
.player-card__actions { display: flex; justify-content: space-between; align-items: center; gap: 1rem; flex-wrap: wrap; }
.status-dot,
.player-card__id {
  font-family: var(--font-display);
  font-size: .52rem;
  letter-spacing: .12em;
  text-transform: uppercase;
}
.status-dot { color: #70ffa6; }
.status-dot::before {
  content: "";
  display: inline-block;
  width: 7px;
  height: 7px;
  margin-right: .5rem;
  border-radius: 50%;
  background: currentColor;
  box-shadow: 0 0 10px currentColor;
}
.player-card__id { color: var(--text-faint); }
.player-card__identity {
  display: grid;
  grid-template-columns: auto minmax(0,1fr);
  gap: clamp(1.1rem, 4vw, 2rem);
  align-items: center;
  margin: clamp(1.7rem, 6vw, 3rem) 0;
}
.pixel-avatar {
  width: clamp(92px, 17vw, 145px);
  aspect-ratio: 1;
  display: grid;
  place-items: center;
  position: relative;
  clip-path: polygon(14% 0, 86% 0, 100% 14%, 100% 86%, 86% 100%, 14% 100%, 0 86%, 0 14%);
  background:
    linear-gradient(135deg, rgba(var(--accent-rgb),.9), rgba(53,224,255,.8));
  box-shadow: var(--glow-neon);
}
.pixel-avatar::before {
  content: "";
  position: absolute;
  inset: 7px;
  clip-path: inherit;
  background: #090d16;
}
.pixel-avatar span { position: relative; font-family: var(--font-display); font-size: clamp(1.05rem, 3vw, 1.7rem); color: var(--text); }
.player-card h1 {
  margin: 0;
  max-width: 12ch;
  font-family: var(--font-display);
  font-size: clamp(1.45rem, 5vw, 3.15rem);
  line-height: 1.25;
}
.player-card h1 em { color: var(--accent); font-style: normal; text-shadow: var(--glow-neon); }
.callsign { margin: .9rem 0 0; color: var(--text-dim); font-size: clamp(.78rem, 2vw, .92rem); letter-spacing: .04em; }
.player-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  margin-bottom: 2rem;
  border-block: 1px solid var(--line);
}
.player-stats div { padding: 1.15rem .5rem; text-align: center; }
.player-stats div + div { border-left: 1px solid var(--line); }
.player-stats strong { display: block; color: var(--accent); font-family: var(--font-display); font-size: clamp(.9rem, 3vw, 1.25rem); }
.player-stats span { display: block; margin-top: .35rem; color: var(--text-faint); font-size: .72rem; text-transform: uppercase; letter-spacing: .1em; }
.mission-card { border-radius: var(--radius); padding: clamp(1.3rem, 4vw, 2rem); display: flex; flex-direction: column; justify-content: center; }
.mission-card__icon { font-size: 3.2rem; filter: drop-shadow(0 0 18px rgba(var(--accent-rgb),.4)); }
.mission-card h2 { margin: .6rem 0 .8rem; font-family: var(--font-display); font-size: 1rem; }
.mission-card p { color: var(--text-dim); font-size: .92rem; }
.mission-card__progress {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  margin: 1rem 0 1.4rem;
  padding: .8rem 0;
  border-block: 1px solid var(--line);
  color: var(--text-faint);
  font-size: .75rem;
  text-transform: uppercase;
}
.mission-card__progress strong { color: var(--amber); }

.section { padding: clamp(3.2rem, 8vw, 5.6rem) 0; }
.section--compact { padding-top: clamp(2.5rem, 6vw, 4rem); }
.section--alt { border-block: 1px solid var(--line); background: var(--ink-2); }
.section__head { margin-bottom: 2.2rem; }
.section__head--row { display: flex; align-items: end; justify-content: space-between; gap: 1rem; }
.section h2 { margin: 0; font-family: var(--font-display); font-size: clamp(1rem, 3.6vw, 1.55rem); line-height: 1.45; }
.section h2 span { color: var(--accent); }
.section__meta { color: var(--text-faint); font-size: .78rem; text-transform: uppercase; letter-spacing: .08em; }

.achievement-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1rem; }
.achievement {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 1rem;
  align-items: center;
  min-height: 110px;
  padding: 1.1rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--panel);
  opacity: .48;
}
.achievement--unlocked { opacity: 1; border-color: rgba(var(--accent-rgb),.35); }
.achievement__icon {
  width: 52px;
  aspect-ratio: 1;
  display: grid;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: 8px;
  color: var(--accent);
  background: var(--ink);
  font-family: var(--font-display);
  font-size: .7rem;
  box-shadow: inset 0 0 18px rgba(var(--accent-rgb),.09);
}
.achievement h3 { margin: 0; font-family: var(--font-display); font-size: .63rem; line-height: 1.5; }
.achievement p { margin: .3rem 0 0; color: var(--text-dim); font-size: .82rem; }
.achievement__state { color: var(--text-faint); font-family: var(--font-display); font-size: .48rem; text-transform: uppercase; }
.achievement--unlocked .achievement__state { color: #70ffa6; }

.arcade-callout { display: grid; grid-template-columns: 1fr .8fr; gap: clamp(2rem, 7vw, 6rem); align-items: center; }
.arcade-callout p:not(.eyebrow) { max-width: 48ch; color: var(--text-dim); }
.arcade-callout .btn { margin-top: 1rem; }
.cabinet-stack { position: relative; min-height: 310px; }
.mini-cabinet {
  position: absolute;
  width: 42%;
  aspect-ratio: .72;
  display: grid;
  place-items: center;
  border: 2px solid var(--line);
  border-radius: 9px 9px 28px 28px;
  background: linear-gradient(150deg, var(--panel-2), #090c13);
  box-shadow: var(--shadow);
  font-size: 2.7rem;
}
.mini-cabinet::after { content: ""; position: absolute; inset: 12px 10px 42%; border: 2px solid currentColor; background: #05070b; box-shadow: 0 0 18px currentColor; opacity: .55; }
.mini-cabinet--runner { left: 0; top: 18%; color: var(--accent); transform: rotate(-8deg); }
.mini-cabinet--snake { left: 20%; top: 5%; color: #70ffa6; transform: rotate(-3deg); }
.mini-cabinet--breakout { right: 18%; top: 5%; color: var(--amber); transform: rotate(3deg); }
.mini-cabinet--blaster { right: 0; top: 18%; color: var(--cyan); transform: rotate(8deg); }

.remix { display: grid; grid-template-columns: 1fr auto; gap: 2rem; align-items: center; }
.remix p:not(.eyebrow) { max-width: 50ch; color: var(--text-dim); }
.signal-picker { display: flex; flex-wrap: wrap; gap: .7rem; }
.signal-picker button {
  min-width: 96px;
  padding: .85rem 1rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--panel);
  color: var(--text-dim);
  cursor: pointer;
  font-weight: 800;
}
.signal-picker button[aria-pressed="true"] { color: var(--text); border-color: var(--accent); box-shadow: 0 0 18px rgba(var(--accent-rgb),.2); }
.signal { display: inline-block; width: 9px; height: 9px; margin-right: .5rem; border-radius: 50%; }
.signal--red { background: var(--neon); box-shadow: 0 0 9px var(--neon); }
.signal--cyan { background: var(--cyan); box-shadow: 0 0 9px var(--cyan); }
.signal--amber { background: var(--amber); box-shadow: 0 0 9px var(--amber); }
.secret-panel {
  position: fixed;
  z-index: 180;
  left: 50%;
  bottom: 1.3rem;
  transform: translateX(-50%);
  width: min(calc(100% - 2rem), 520px);
  padding: 1rem 1.2rem;
  border: 1px solid var(--amber);
  border-radius: var(--radius-sm);
  background: rgba(7,8,12,.96);
  box-shadow: 0 0 30px rgba(255,201,77,.28);
  text-align: center;
}
.secret-panel[hidden] { display: none; }
.secret-panel strong,
.secret-panel span { display: block; }
.secret-panel strong { color: var(--amber); font-family: var(--font-display); font-size: .6rem; }
.secret-panel span { margin-top: .5rem; color: var(--text-dim); font-family: ui-monospace, monospace; }

/* arcade */
.arcade-hero { position: relative; min-height: 430px; display: grid; align-items: end; overflow: hidden; }
.arcade-hero__image { position: absolute; inset: 0; background: url("../img/library-bg.jpg") center / cover; transform: scale(1.03); }
.arcade-hero__scrim { position: absolute; inset: 0; background: linear-gradient(90deg, rgba(7,8,12,.9), rgba(7,8,12,.42)), linear-gradient(to bottom, rgba(7,8,12,.15), var(--ink)); }
.arcade-hero__inner { position: relative; display: grid; grid-template-columns: 1fr auto; gap: 2rem; align-items: end; padding-block: 5rem 3.5rem; }
.arcade-hero h1 { margin: 0; font-family: var(--font-display); font-size: clamp(1.7rem, 7vw, 4rem); line-height: 1.25; }
.arcade-hero h1 em { color: var(--accent); font-style: normal; text-shadow: var(--glow-neon); }
.arcade-hero p:not(.eyebrow) { max-width: 42ch; color: var(--text-dim); }
.arcade-summary { display: grid; justify-items: end; gap: .6rem; min-width: 220px; }
.arcade-summary span { color: var(--text-faint); font-size: .72rem; text-transform: uppercase; letter-spacing: .1em; }
.arcade-summary strong { font-family: var(--font-display); font-size: 2rem; color: var(--amber); }
.featured-game {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: clamp(1rem, 4vw, 2rem);
  align-items: center;
  margin-bottom: 4rem;
  padding: clamp(1.2rem, 4vw, 2rem);
  border: 1px solid rgba(var(--accent-rgb),.4);
  border-radius: var(--radius);
  background: linear-gradient(100deg, rgba(var(--accent-rgb),.09), var(--panel));
  box-shadow: 0 0 40px rgba(var(--accent-rgb),.07);
}
.featured-game__mark { width: 96px; aspect-ratio: 1; display: grid; place-items: center; border-radius: 12px; background: #080b12; font-size: 3rem; }
.featured-game h2 { margin-bottom: .4rem; }
.featured-game p:not(.eyebrow) { margin: 0; color: var(--text-dim); }
.featured-game__score { display: grid; justify-items: end; gap: .45rem; }
.featured-game__score span { color: var(--text-faint); font-size: .7rem; text-transform: uppercase; }
.featured-game__score strong { color: var(--amber); font-family: var(--font-display); font-size: 1.4rem; }
.game-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1rem; }
.game-tile {
  position: relative;
  display: grid;
  grid-template-columns: auto auto 1fr auto;
  gap: 1rem;
  align-items: center;
  min-height: 142px;
  padding: 1.2rem;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(135deg, var(--panel), #0a0d14);
  color: var(--text);
  transition: transform .16s ease, border-color .16s ease, box-shadow .16s ease;
}
.game-tile::after { content: ""; position: absolute; inset: 0; pointer-events: none; background: radial-gradient(circle at 10% 50%, currentColor, transparent 38%); opacity: .07; }
.game-tile:hover,
.game-tile:focus-visible { transform: translateY(-3px); border-color: currentColor; box-shadow: 0 16px 45px rgba(0,0,0,.4); text-decoration: none; }
.game-tile--runner { color: var(--accent); }
.game-tile--snake { color: #70ffa6; }
.game-tile--breakout { color: var(--amber); }
.game-tile--blaster { color: var(--cyan); }
.game-tile__number { color: var(--text-faint); font-family: var(--font-display); font-size: .52rem; }
.game-tile__icon { font-size: 2.3rem; }
.game-tile h3 { margin: 0; color: var(--text); font-family: var(--font-display); font-size: .72rem; line-height: 1.5; }
.game-tile p { margin: .3rem 0 0; color: var(--text-dim); font-size: .8rem; }
.game-tile__best { color: var(--text-faint); font-size: .62rem; text-align: right; }
.game-tile__best b { display: block; color: currentColor; font-family: var(--font-display); font-size: .82rem; }
.arcade-rules { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; }
.arcade-rules > div { padding: 1.4rem; border-left: 2px solid var(--line); }
.rules-number { color: var(--accent); font-family: var(--font-display); font-size: .55rem; }
.arcade-rules h3 { margin: .75rem 0 .35rem; font-family: var(--font-display); font-size: .7rem; }
.arcade-rules p { margin: 0; color: var(--text-dim); font-size: .85rem; }

.footer { padding: 2.3rem 0; border-top: 1px solid var(--line); background: var(--ink-2); color: var(--text-faint); font-size: .78rem; letter-spacing: .05em; }
.footer__inner { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 1rem 2rem; align-items: center; }
.footer a { color: var(--text-dim); }
.oops { min-height: calc(100svh - 66px); display: grid; place-items: center; padding: 3rem 0; text-align: center; }
.oops__code { margin: 0 0 1rem; color: var(--accent); font-family: var(--font-display); font-size: clamp(3rem, 18vw, 8rem); line-height: 1; text-shadow: var(--glow-neon); }
.oops h1 { margin: 0 0 1rem; font-family: var(--font-display); font-size: clamp(.95rem, 4vw, 1.4rem); }
.oops p { max-width: 40ch; margin: 0 auto 2rem; color: var(--text-dim); }

@media (max-width: 800px) {
  .profile-hero { min-height: auto; }
  .profile-hero__inner,
  .arcade-callout,
  .remix { grid-template-columns: 1fr; }
  .mission-card { min-height: 300px; }
  .achievement-grid,
  .game-grid { grid-template-columns: 1fr; }
  .cabinet-stack { width: min(100%, 480px); margin-inline: auto; }
  .arcade-hero__inner { grid-template-columns: 1fr; }
  .arcade-summary { justify-items: start; }
  .featured-game { grid-template-columns: auto 1fr; }
  .featured-game__score { grid-column: 1 / -1; grid-template-columns: 1fr auto auto; align-items: center; justify-items: start; width: 100%; }
}
@media (max-width: 540px) {
  .wrap { width: min(100% - 1.5rem, var(--wrap)); }
  body { font-size: 16px; }
  .masthead__inner { min-height: 60px; }
  .nav a { font-size: .7rem; }
  .player-card__identity { grid-template-columns: 1fr; }
  .player-card__actions .btn { width: 100%; }
  .achievement { grid-template-columns: auto 1fr; }
  .achievement__state { grid-column: 2; }
  .section__head--row { align-items: start; flex-direction: column; }
  .arcade-hero { min-height: 390px; }
  .featured-game { grid-template-columns: 1fr; }
  .featured-game__mark { width: 72px; }
  .featured-game__score { grid-column: auto; grid-template-columns: 1fr auto; }
  .featured-game__score .btn { grid-column: 1 / -1; width: 100%; }
  .game-tile { grid-template-columns: auto auto 1fr; }
  .game-tile__best { grid-column: 2 / -1; text-align: left; }
  .game-tile__best b { display: inline; margin-left: .4rem; }
  .arcade-rules { grid-template-columns: 1fr; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; scroll-behavior: auto !important; transition-duration: .01ms !important; }
}
@media (prefers-reduced-motion: no-preference) { html { scroll-behavior: smooth; } }