/* sh23ds website. One stylesheet for every page.
   The look is the 2001 game's own front end: a black screen, serif menus with the red selection bar,
   memo paper, save slots and the results screen, under film grain and scanlines. */

/* ---------------------------------------------------------------- tokens */

:root {
  --black: #050505;
  --panel: #0b0b0b;
  --panel-2: #0e0e0e;
  --line: #262626;
  --line-2: #1c1c1c;
  --text: #dadada;
  --text-2: #c4c4c4;
  --hi: #f2f2f2;
  --dim: #9a9a9a;
  --menu: #a9bbcc;
  --red: #b3121b;
  --red-hi: #e2363c;
  --paper: #d9d3c5;
  --ink: #1b1b1b;
  --ink-2: #4a463f;

  --display: "Libre Caslon Display", "Didot", "Bodoni 72", Georgia, serif;
  --serif: "Crimson Pro", Georgia, "Times New Roman", serif;
  --mono: "VT323", "Courier New", monospace;

  --gutter: clamp(20px, 4vw, 48px);
  --bar: linear-gradient(90deg, rgba(179, 18, 27, .95) 0%, rgba(179, 18, 27, .5) 60%, rgba(179, 18, 27, 0) 100%);
  --vignette: .9;

  /* Film grain, drawn by the browser: light specks for the screen, dark ones for paper. */
  --noise: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='220' height='220'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.8' numOctaves='3' seed='1' stitchTiles='stitch'/%3E%3CfeColorMatrix values='0 0 0 0 1 0 0 0 0 1 0 0 0 0 1 0 0 0 1.7 -.66'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  --noise-dark: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='260' height='260'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.7 .9' numOctaves='3' stitchTiles='stitch'/%3E%3CfeColorMatrix values='0 0 0 0 .2 0 0 0 0 .16 0 0 0 0 .1 0 0 0 1.3 -.5'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* ---------------------------------------------------------------- base */

*, *::before, *::after { box-sizing: border-box; }
[hidden] { display: none !important; }

html {
  background: var(--black);
  color-scheme: dark;
  -webkit-text-size-adjust: 100%;
  scroll-padding-top: 24px;
}

body {
  margin: 0;
  min-height: 100vh;
  background: var(--black);
  color: var(--text);
  font: 400 20px/1.6 var(--serif);
  font-optical-sizing: auto;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
  overflow-x: clip;
}

body.page { --vignette: .6; }

img { display: block; max-width: 100%; height: auto; }
a { color: inherit; }
p { margin: 0; }
h1, h2, h3 { margin: 0; font-weight: 400; }
code, kbd, pre { font-family: var(--mono); }
button { font: inherit; color: inherit; }
a, button, summary, input { -webkit-tap-highlight-color: transparent; }
::selection { background: var(--red); color: #fff; }

:focus-visible { outline: 1px solid var(--menu); outline-offset: 3px; }

.sr {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}

.skip {
  position: absolute; left: 12px; top: -60px; z-index: 100;
  padding: 10px 16px; background: var(--red); color: #fff;
  font: 400 20px var(--mono); letter-spacing: .12em; text-decoration: none; text-transform: uppercase;
}
.skip:focus { top: 12px; }

/* ---------------------------------------------------------------- the screen: grain, scanlines, vignette */

body::before {
  content: ""; position: fixed; inset: 0; z-index: 90; pointer-events: none;
  background: var(--noise); opacity: .13;
  animation: grain .36s steps(1) infinite;
}
body::after {
  content: ""; position: fixed; inset: 0; z-index: 91; pointer-events: none;
  background: repeating-linear-gradient(180deg, rgba(255, 255, 255, .026) 0 1px, transparent 1px 3px);
  box-shadow: inset 0 0 220px 50px rgba(0, 0, 0, var(--vignette));
}

/* Film grain flickers in place: four noise frames, each held for a moment, like grain on film. */
@keyframes grain {
  0% { background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='220' height='220'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.8' numOctaves='3' seed='1' stitchTiles='stitch'/%3E%3CfeColorMatrix values='0 0 0 0 1 0 0 0 0 1 0 0 0 0 1 0 0 0 1.7 -.66'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E"); }
  25% { background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='220' height='220'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.8' numOctaves='3' seed='7' stitchTiles='stitch'/%3E%3CfeColorMatrix values='0 0 0 0 1 0 0 0 0 1 0 0 0 0 1 0 0 0 1.7 -.66'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E"); }
  50% { background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='220' height='220'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.8' numOctaves='3' seed='13' stitchTiles='stitch'/%3E%3CfeColorMatrix values='0 0 0 0 1 0 0 0 0 1 0 0 0 0 1 0 0 0 1.7 -.66'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E"); }
  75% { background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='220' height='220'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.8' numOctaves='3' seed='21' stitchTiles='stitch'/%3E%3CfeColorMatrix values='0 0 0 0 1 0 0 0 0 1 0 0 0 0 1 0 0 0 1.7 -.66'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E"); }
}

/* ---------------------------------------------------------------- shared pieces */

.wrap { width: min(1200px, 100%); margin: 0 auto; }
.wrap-narrow { width: min(900px, 100%); margin: 0 auto; }

.section { position: relative; padding: clamp(72px, 11vw, 140px) var(--gutter); }
.section.alt { background: #0a0a0a; border-block: 1px solid #161616; }
.section.deep { background: #000; border-block: 1px solid var(--line-2); overflow: hidden; isolation: isolate; }
.section.deep .static { opacity: .14; }
.stack { display: flex; flex-direction: column; gap: 56px; }
.stack-sm { display: flex; flex-direction: column; gap: 40px; }

.h2 {
  text-wrap: balance;
  font-family: var(--display); font-size: clamp(30px, 4vw, 52px); line-height: 1.15;
  letter-spacing: .12em; text-transform: uppercase; color: var(--hi);
}
.h-center { text-align: center; padding-left: .12em; }
.head-row { display: flex; flex-wrap: wrap; align-items: flex-end; justify-content: space-between; gap: 16px 40px; }

.sc { font-variant: all-small-caps; letter-spacing: .16em; }
.sys { font-family: var(--mono); letter-spacing: .14em; text-transform: uppercase; }
.dim { color: var(--dim); }

/* The mark: the nine red squares on the last wall. */
.mark { display: grid; grid-template-columns: repeat(3, 4px); gap: 2px; flex: none; }
.mark i { width: 4px; height: 4px; background: var(--red); }

.sq { display: inline-block; flex: none; width: 9px; height: 9px; background: #fff; }
.bullet { flex: none; width: 8px; height: 8px; margin-top: .62em; background: var(--red); }

.lnk {
  color: var(--text); text-decoration: none;
  display: inline-block; padding: 12px 0 3px; border-bottom: 1px solid var(--red);
  font-variant: all-small-caps; letter-spacing: .14em; font-size: 21px; line-height: 1.2;
}
.lnk:hover { color: #fff; border-bottom-color: var(--red-hi); }

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 12px;
  min-height: 46px; padding: 0 20px;
  border: 1px solid #4a4a4a; background: transparent; color: var(--text);
  font: 400 20px/1 var(--serif); font-variant: all-small-caps; letter-spacing: .14em;
  text-decoration: none; cursor: pointer;
}
.btn:hover { border-color: var(--red); background: var(--red); color: #fff; }
.btn-red { border-color: var(--red); background: var(--red); color: #fff; }
.btn-red:hover { border-color: #d01a24; background: #d01a24; }
.btn .size { font: 400 18px var(--mono); letter-spacing: .08em; font-variant: normal; opacity: .85; }

.panel { border: 1px solid var(--line); background: var(--panel); }
.panel-head {
  display: flex; align-items: baseline; justify-content: space-between; gap: 12px;
  padding: 14px 22px; border-bottom: 1px solid var(--line);
  color: var(--menu); font-size: 20px; font-variant: all-small-caps; letter-spacing: .2em;
}
.panel-head .sys { color: var(--dim); font-size: 18px; letter-spacing: .12em; }

/* Memo paper. */
.paper {
  color: var(--ink);
  background-color: var(--paper);
  background-image:
    var(--noise-dark),
    radial-gradient(120% 90% at 20% 0%, rgba(255, 255, 255, .22), transparent 60%),
    radial-gradient(90% 80% at 100% 100%, rgba(120, 96, 60, .18), transparent 70%);
  box-shadow: 0 40px 100px rgba(0, 0, 0, .7), 0 0 0 1px rgba(0, 0, 0, .4);
}

/* ---------------------------------------------------------------- header and footer */

.bar {
  position: relative; z-index: 5;
  display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 12px 32px;
  padding: 22px var(--gutter);
  border-bottom: 1px solid #161616;
}
.bar-over { position: absolute; inset: 0 0 auto; border-bottom: 0; }

.brand { display: inline-flex; align-items: center; gap: 12px; min-height: 44px; color: var(--text); text-decoration: none; }
.brand-name { font: 400 26px/1 var(--mono); letter-spacing: .08em; }
.brand:hover { color: #fff; }

.nav { display: flex; flex-wrap: wrap; gap: 4px 28px; font-size: 20px; font-variant: all-small-caps; letter-spacing: .14em; }
.nav a { padding: 6px 2px; color: var(--menu); text-decoration: none; border-bottom: 1px solid transparent; }
.nav a:hover, .nav a[aria-current="page"] { color: #fff; border-bottom-color: var(--red); }

.foot { position: relative; padding: 64px var(--gutter) 72px; border-top: 1px solid var(--line-2); background: #030303; }
.foot .wrap { display: flex; flex-direction: column; gap: 32px; }
.foot-row { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 20px 40px; }
.foot p { max-width: 92ch; font-size: 16px; line-height: 1.65; color: var(--dim); }
.foot p a { color: var(--text); text-decoration-color: var(--red); text-underline-offset: 3px; }

/* ---------------------------------------------------------------- home: the title screen */

.title-screen {
  position: relative; isolation: isolate; overflow: hidden;
  min-height: max(640px, 100svh);
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 40px;
  padding: 120px 20px 150px; text-align: center;
}
.title-screen > * { position: relative; }

.static {
  position: absolute !important; inset: 0; z-index: -3; pointer-events: none;
  background: var(--noise); opacity: .3;
  animation: grain .36s steps(1) infinite;
}

/* The title screen's background: the PC game's opening movies, cut into one silent loop. */
.title-video {
  position: absolute !important; inset: 0; z-index: -4; pointer-events: none;
  width: 100%; height: 100%; object-fit: cover;
  filter: saturate(.5) contrast(1.08) brightness(.42) blur(.6px);
  transform: scale(1.04);
}
.bloom {
  position: absolute !important; left: 50%; top: 36%; z-index: -2; pointer-events: none;
  width: min(1100px, 130%); height: 540px; transform: translate(-50%, -50%);
  background: radial-gradient(50% 50% at 50% 50%, rgba(179, 18, 27, .22), transparent 70%);
  mix-blend-mode: screen;
  animation: breathe 7s ease-in-out infinite;
}
.vig {
  position: absolute !important; inset: 0; z-index: -1; pointer-events: none;
  background:
    linear-gradient(180deg, rgba(5, 5, 5, .55) 0%, transparent 22%, transparent 76%, var(--black) 100%),
    radial-gradient(75% 65% at 50% 42%, transparent 35%, rgba(0, 0, 0, .9) 100%);
}

.eyebrow { font: 400 22px/1 var(--mono); letter-spacing: .3em; color: var(--dim); text-transform: uppercase; }

.title {
  font-family: var(--display); font-size: clamp(40px, 8.6vw, 128px); line-height: 1.02;
  letter-spacing: .14em; text-transform: uppercase; color: var(--hi);
  padding-left: .14em;
  text-shadow: 0 0 34px rgba(179, 18, 27, .62), 0 0 2px rgba(255, 255, 255, .35);
}
.title .word { display: inline-block; white-space: nowrap; }
.title .ch { display: inline-block; animation: surface 1200ms cubic-bezier(.16, 1, .3, 1) both; }

.title-block { display: flex; flex-direction: column; align-items: center; gap: 20px; }

.lede { max-width: 34ch; font-size: clamp(19px, 1.7vw, 23px); line-height: 1.55; font-style: italic; color: var(--text); text-wrap: balance; }

.title-screen .lede { max-width: 60ch; }

/* The title menu. One red bar at a time, as in the game. */
.menu { display: flex; flex-direction: column; width: min(300px, 100%); text-align: left; }
.menu a {
  display: flex; align-items: center; gap: 14px; padding: 7px 22px 7px 16px;
  color: var(--menu); text-decoration: none;
  font-size: 25px; line-height: 1.25; font-variant: all-small-caps; letter-spacing: .16em;
}
.menu a .sq { opacity: 0; }
.menu a:hover, .menu a:focus-visible, .menu a.is-sel { background: var(--bar); color: #fff; outline: 0; }
.menu a:hover .sq, .menu a:focus-visible .sq, .menu a.is-sel .sq { opacity: 1; }
.menu:has(a:hover, a:focus-visible) a.is-sel:not(:hover, :focus-visible) { background: none; color: var(--menu); }
.menu:has(a:hover, a:focus-visible) a.is-sel:not(:hover, :focus-visible) .sq { opacity: 0; }


/* ---------------------------------------------------------------- home: the opening scene */

.scene {
  margin: 0; display: flex; flex-direction: column; aspect-ratio: 16 / 9; background: #000;
  box-shadow: 0 0 0 1px #151515, 0 50px 120px rgba(0, 0, 0, .8);
}
.scene-bar { flex: 1; min-height: 40px; }
.scene-frame { position: relative; overflow: hidden; aspect-ratio: 2.39 / 1; }
.scene-frame img {
  width: 100%; height: 100%; object-fit: cover; object-position: 50% 58%;
  filter: contrast(1.08) saturate(.78) brightness(1.02) blur(.4px);
  animation: drift 26s ease-in-out infinite alternate;
}
.scene-frame::before {
  content: ""; position: absolute; inset: 0; z-index: 1; pointer-events: none;
  background:
    repeating-linear-gradient(180deg, rgba(0, 0, 0, .28) 0 1px, transparent 1px 3px),
    radial-gradient(90% 90% at 50% 50%, transparent 55%, rgba(0, 0, 0, .55) 100%);
}
.scene figcaption { flex: 1; min-height: 64px; display: flex; align-items: center; justify-content: center; padding: 10px 24px; }
.subtitle-line {
  max-width: 46ch; text-align: center; color: #fff;
  font-size: clamp(18px, 2.1vw, 28px); line-height: 1.35;
  text-shadow: 0 0 2px #000, 1px 1px 0 #000, -1px -1px 0 #000, 1px -1px 0 #000, -1px 1px 0 #000;
}

/* The still is also the video, a tape with a VCR's on-screen display in the letterbox. The player is
   YouTube's, loaded only on a click; without the script the link opens the video on YouTube. */
.scene-bar { display: flex; align-items: center; justify-content: space-between; padding: 0 clamp(16px, 2.6vw, 30px); }
.osd {
  display: inline-flex; align-items: center; gap: 10px;
  font: 400 clamp(19px, 1.9vw, 24px)/1 var(--mono); letter-spacing: .14em; text-transform: uppercase;
  color: #e9e9e9; text-shadow: 0 0 6px rgba(255, 255, 255, .3);
}
.osd-tri { width: .62em; height: .7em; background: currentColor; clip-path: polygon(0 0, 100% 50%, 0 100%); animation: blink 1.6s steps(1) infinite; }
.tape { position: absolute; inset: 0; z-index: 2; display: grid; place-items: center; }
.tape:focus-visible { outline: 1px solid var(--menu); outline-offset: -6px; }
.tape-btn {
  display: grid; place-items: center; width: clamp(56px, 6vw, 76px); aspect-ratio: 1;
  border: 1px solid rgba(255, 255, 255, .72); background: rgba(5, 5, 5, .5);
  transition: background-color .2s, border-color .2s;
}
.tape-btn::before { content: ""; width: 30%; height: 34%; margin-left: 8%; background: #fff; clip-path: polygon(0 0, 100% 50%, 0 100%); }
.tape:hover .tape-btn, .tape:focus-visible .tape-btn { border-color: var(--red); background: var(--red); }
.scene.is-playing { aspect-ratio: 16 / 9; }
.scene.is-playing > :not(iframe) { display: none; }
.scene iframe { display: block; flex: 1; width: 100%; height: 100%; border: 0; }

/* ---------------------------------------------------------------- home: memos */

.memos { display: flex; flex-wrap: wrap; gap: 36px; align-items: stretch; }
.memo-side { flex: 1 1 300px; min-width: 0; display: flex; flex-direction: column; gap: 22px; }
.memo-list { display: flex; flex-direction: column; padding: 8px 0 12px; }
.memo-tab {
  appearance: none; border: 0; background: transparent; cursor: pointer; width: 100%; text-align: left;
  display: flex; align-items: center; gap: 14px; padding: 10px 22px 10px 18px;
  color: var(--menu); font-size: 22px; font-variant: all-small-caps; letter-spacing: .12em;
}
.memo-tab .sq { opacity: 0; }
.memo-tab:hover { color: #fff; }
.memo-tab[aria-selected="true"] { background: var(--bar); color: #fff; }
.memo-tab[aria-selected="true"] .sq { opacity: 1; }
.memo-tab:focus-visible { outline-offset: -3px; }
.memo-also { padding: 0 4px; font-size: 18px; line-height: 1.55; font-style: italic; color: var(--dim); }

.memo-paper { flex: 999 1 520px; min-width: 0; padding: clamp(28px, 4vw, 56px); }
.memo { display: grid; gap: 28px; align-items: center; }
.memo + .memo { margin-top: 56px; }
.js .memo + .memo { margin-top: 0; }
.memo-text { display: flex; flex-direction: column; gap: 18px; }
.memo h3 { font-size: 34px; font-weight: 600; line-height: 1.15; }
.memo p { max-width: 36ch; font-size: 23px; line-height: 1.55; }
@media (min-width: 1000px) {
  .memo-paper { display: grid; align-items: center; }
  .memo { grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: 44px; }
}

.photo { margin: 0; width: 100%; max-width: 560px; padding: 8px; background: #121212; box-shadow: 0 14px 30px rgba(0, 0, 0, .35); }
.photo img { width: 100%; image-rendering: pixelated; }
.photo-pair { width: min(100%, 360px); justify-self: center; display: flex; flex-direction: column; align-items: center; gap: 6px; padding: 10px; }
.photo-pair img + img { width: 80%; }

/* ---------------------------------------------------------------- home: save slots and the item */

.get { display: flex; flex-wrap: wrap; gap: 36px; align-items: stretch; }
.save { flex: 999 1 560px; min-width: 0; display: flex; flex-direction: column; }
.slot {
  display: flex; flex-wrap: wrap; align-items: center; gap: 8px 28px; padding: 22px 24px;
  color: var(--text); text-decoration: none; border-bottom: 1px solid #222;
}
.slot:last-child { border-bottom: 0; }
.slot-num { flex: none; width: 86px; font: 400 24px/1 var(--mono); letter-spacing: .1em; text-transform: uppercase; }
.slot-body { flex: 1 1 280px; min-width: 0; display: flex; flex-direction: column; gap: 4px; }
.slot-title { font-size: 25px; font-weight: 600; line-height: 1.2; }
.slot-text { font-size: 18px; line-height: 1.5; opacity: .88; }
.slot-meta { flex: none; font: 400 22px/1 var(--mono); letter-spacing: .1em; color: var(--dim); text-transform: uppercase; }
.slot:hover, .slot:focus-visible, .save:not(:has(.slot:hover, .slot:focus-visible)) .slot:first-of-type {
  background: linear-gradient(90deg, rgba(179, 18, 27, .85) 0%, rgba(179, 18, 27, .35) 60%, rgba(179, 18, 27, .08) 100%);
  color: #fff; outline: 0;
}
.slot:hover .slot-meta, .slot:focus-visible .slot-meta, .save:not(:has(.slot:hover, .slot:focus-visible)) .slot:first-of-type .slot-meta { color: #fff; }

.item { flex: 1 1 320px; min-width: 0; display: flex; flex-direction: column; }
.item-body { flex: 1; display: flex; flex-direction: column; gap: 18px; padding: 24px; }
.qr { align-self: center; width: min(220px, 100%); padding: 12px; background: #e9edf0; box-shadow: 0 0 0 1px #2c2c2c, 0 0 0 7px var(--panel), 0 0 0 8px #3a3a3a; }
.qr img { width: 100%; image-rendering: pixelated; }
.item-name { font: 400 26px/1 var(--mono); letter-spacing: .08em; color: var(--hi); }
.item-caption { display: flex; flex-direction: column; gap: 8px; text-align: center; }
.item-caption span:last-child { font-size: 18px; line-height: 1.45; color: #b5b5b5; }
.item-actions { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(150px, 100%), 1fr)); gap: 8px; margin-top: auto; }

/* ---------------------------------------------------------------- home and roadmap: the results screen */

.results { width: 100%; padding: 26px 0; border-block: 3px double #3a3a3a; display: flex; flex-direction: column; gap: 16px; }
.result { display: flex; align-items: baseline; gap: 16px; padding: 0 clamp(4px, 2vw, 24px); }
.result-name { font-size: clamp(19px, 2vw, 24px); font-variant: all-small-caps; letter-spacing: .12em; color: var(--text); }
.leader { flex: 1; min-width: 24px; border-bottom: 1px dotted #4a4a4a; transform: translateY(-6px); }
.result-value { font: 400 clamp(26px, 3vw, 34px)/1 var(--mono); color: var(--hi); white-space: nowrap; }
.result-value.red { color: var(--red-hi); }
.results-wrap { display: flex; flex-direction: column; align-items: center; gap: 48px; }
.results-head { display: flex; flex-direction: column; align-items: center; gap: 14px; text-align: center; }
.results-head p { font-size: 22px; font-style: italic; color: var(--menu); }

/* ---------------------------------------------------------------- home: questions */

.faq { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(440px, 100%), 1fr)); gap: 28px; }
.faq article { display: flex; flex-direction: column; gap: 14px; padding: 34px 36px 38px; box-shadow: 0 30px 70px rgba(0, 0, 0, .6); }
.faq h3 { font-size: 26px; font-weight: 600; line-height: 1.2; }
.faq p { font-size: 20px; line-height: 1.55; }

/* ---------------------------------------------------------------- inner pages: the heading */

.page-head {
  position: relative; overflow: hidden; text-align: center;
  padding: clamp(80px, 9vw, 110px) var(--gutter) clamp(70px, 8vw, 100px);
  border-bottom: 1px solid #161616;
  background: radial-gradient(60% 80% at 50% 0%, rgba(179, 18, 27, .12), transparent 70%);
}
.page-head .static { opacity: .14; }
.page-head .wrap-narrow { display: flex; flex-direction: column; align-items: center; gap: 26px; }
.page-title {
  font-family: var(--display); font-size: clamp(46px, 7vw, 96px); line-height: 1;
  letter-spacing: .16em; padding-left: .16em; text-transform: uppercase; color: var(--hi);
  text-shadow: 0 0 30px rgba(179, 18, 27, .55);
}
.page-head .lede { max-width: 40ch; }
.facts { display: flex; flex-wrap: wrap; justify-content: center; gap: 6px 22px; font: 400 21px/1.3 var(--mono); letter-spacing: .14em; color: var(--dim); text-transform: uppercase; }
.facts i { width: 7px; height: 7px; margin-top: .45em; background: var(--red); flex: none; }

/* A page with a menu beside it: install steps, docs contents. Below 1060 px the menu becomes a sticky
   strip of tabs under the page heading. */
.guide {
  max-width: 1240px; margin: 0 auto; padding: 80px var(--gutter) 140px;
  display: flex; flex-direction: column; gap: 56px;
}
.guide-side { min-width: 0; display: flex; flex-direction: column; gap: 18px; }
.guide-main { min-width: 0; display: flex; flex-direction: column; gap: 110px; }
@media (min-width: 1060px) {
  .guide { display: grid; grid-template-columns: 260px minmax(0, 1fr); align-items: start; }
  .guide-side { position: sticky; top: 24px; }
}
.side-menu { display: flex; flex-direction: column; padding: 8px 0 12px; }
.side-menu a {
  display: flex; align-items: center; gap: 14px; padding: 8px 20px 8px 16px;
  color: var(--menu); text-decoration: none;
  font-size: 22px; line-height: 1.25; font-variant: all-small-caps; letter-spacing: .14em;
}
.side-menu a .sq { opacity: 0; }
.side-menu a:hover { color: #fff; background: linear-gradient(90deg, rgba(179, 18, 27, .5), rgba(179, 18, 27, 0)); }
.side-menu a[aria-current] { background: var(--bar); color: #fff; }
.side-menu a[aria-current] .sq { opacity: 1; }
.side-menu a:focus-visible { outline-offset: -3px; }
.side-note { padding: 0 4px; font: 400 19px/1.4 var(--mono); letter-spacing: .1em; color: var(--dim); text-transform: uppercase; }

/* Below 1060 px: the menu as a sticky strip of tabs. */
@media (max-width: 1059px) {
  html { scroll-padding-top: 72px; }
  .guide { padding-top: 0; gap: 52px; }
  .guide-main { gap: 88px; }
  .guide-side {
    position: sticky; top: 0; z-index: 20; margin: 0 calc(-1 * var(--gutter));
    background: rgba(5, 5, 5, .94); -webkit-backdrop-filter: blur(8px); backdrop-filter: blur(8px);
    border-bottom: 1px solid var(--line);
  }
  .guide-side .panel { border: 0; background: none; }
  .guide-side .panel-head, .side-note { display: none; }
  .side-menu {
    flex-direction: row; overflow-x: auto; padding: 0;
    scroll-snap-type: x proximity; scrollbar-width: none;
  }
  .side-menu::-webkit-scrollbar { display: none; }
  .side-menu::after { content: ""; flex: none; width: calc(var(--gutter) - 18px); }
  .side-menu a { flex: none; white-space: nowrap; min-height: 54px; padding: 0 18px 0 14px; font-size: 19px; scroll-snap-align: start; }
  .side-menu a:first-child { padding-left: var(--gutter); }
  .doc-section { scroll-margin-top: 0; }
}


.step { display: flex; flex-direction: column; gap: 32px; }
.step-head {
  display: flex; flex-wrap: wrap; align-items: baseline; justify-content: space-between; gap: 8px 24px;
  padding-bottom: 18px; border-bottom: 3px double #333;
}
.step-head > div { display: flex; flex-wrap: wrap; align-items: baseline; gap: 6px 20px; }
.step-num { font: 400 24px/1 var(--mono); letter-spacing: .12em; color: var(--red-hi); white-space: nowrap; text-transform: uppercase; }
.step-title { font-family: var(--display); font-size: clamp(28px, 3.2vw, 42px); line-height: 1.15; letter-spacing: .1em; text-transform: uppercase; color: var(--hi); }
.step-time { font: 400 22px/1 var(--mono); letter-spacing: .12em; color: var(--dim); text-transform: uppercase; }
.step-lede { max-width: 56ch; font-size: 21px; line-height: 1.6; color: var(--text); }
.step h3 { font-size: 24px; font-weight: 600; color: var(--hi); }
.step-block { display: flex; flex-direction: column; gap: 14px; }
.text-2 { font-size: 19px; line-height: 1.6; color: var(--text-2); }
.text-2 strong { color: var(--hi); font-weight: 600; }
.tt { font-family: var(--mono); font-size: 1.12em; color: var(--hi); letter-spacing: .02em; word-break: break-word; }

.needs { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(300px, 100%), 1fr)); gap: 30px 44px; margin: 0; padding: 0; list-style: none; }
.needs li { display: flex; gap: 16px; align-items: flex-start; }
.needs li > div { display: flex; flex-direction: column; gap: 6px; }
.needs b { font-size: 22px; font-weight: 600; color: var(--hi); }
.needs span { font-size: 19px; line-height: 1.55; color: var(--text-2); }

/* The OS row, like a line in the game's options: < macOS > */
.option-row { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 8px 24px; padding: 10px 14px 10px 22px; border-bottom: 1px solid var(--line); }
.option-row > span { color: var(--menu); font-size: 21px; font-variant: all-small-caps; letter-spacing: .16em; }
.cycler { display: flex; align-items: center; gap: 4px; }
.cycler output { min-width: 140px; text-align: center; font: 400 26px/1 var(--mono); letter-spacing: .12em; color: #fff; }
.arrow {
  appearance: none; cursor: pointer; width: 44px; height: 44px;
  display: inline-flex; align-items: center; justify-content: center;
  background: transparent; border: 1px solid transparent; color: var(--text);
}
.arrow:hover { border-color: #3a3a3a; color: #fff; }
.arrow svg { width: 12px; height: 16px; }

.field-box { display: flex; flex-direction: column; gap: 10px; padding: 22px; }
.field-box label { font-size: 20px; font-weight: 600; color: var(--hi); }
.field-box .hint { font-size: 17px; line-height: 1.5; color: #a8a8a8; }
.field {
  width: 100%; min-height: 52px; padding: 10px 16px;
  background: var(--panel); border: 1px solid #3a3a3a; color: var(--hi);
  font: 400 22px/1.2 var(--mono); letter-spacing: .04em;
}
.field:focus { outline: none; border-color: var(--menu); box-shadow: 0 0 0 1px var(--menu); }
.field::placeholder { color: #858585; }
.field-note { display: none; font-size: 17px; line-height: 1.5; color: var(--red-hi); }
.field-note.is-on { display: block; }

.code-head {
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
  padding: 8px 10px 8px 22px; background: #121212; border: 1px solid #232323; border-bottom: 0;
  font: 400 18px/1 var(--mono); letter-spacing: .14em; color: var(--dim); text-transform: uppercase;
}
.code {
  margin: 0; padding: 20px 22px; overflow-x: auto;
  background: var(--panel); border: 1px solid #232323; color: #e6e6e6;
  font: 400 22px/1.3 var(--mono); white-space: pre; tab-size: 4;
}
.code mark { background: rgba(179, 18, 27, .35); color: #fff; padding: 0 2px; }
.code .c { color: var(--dim); }
.code .r { color: var(--red-hi); }
.copy {
  appearance: none; cursor: pointer; min-height: 40px; padding: 0 16px;
  background: transparent; border: 1px solid #3a3a3a; color: var(--text);
  font: 400 18px/1 var(--mono); letter-spacing: .14em; text-transform: uppercase;
}
.copy:hover, .copy.is-done { border-color: var(--red); background: var(--red); color: #fff; }

details.trouble { border-top: 1px solid #232323; }
details.trouble:last-child { border-bottom: 1px solid #232323; }
details.trouble summary {
  list-style: none; cursor: pointer; display: flex; align-items: center; gap: 16px;
  min-height: 56px; padding: 6px 4px; font-size: 20px; color: #e6e6e6;
}
details.trouble summary::-webkit-details-marker { display: none; }
details.trouble summary:hover { color: #fff; }
details.trouble .plus { flex: none; width: 12px; height: 12px; position: relative; transition: transform .2s; }
details.trouble .plus::before, details.trouble .plus::after { content: ""; position: absolute; background: var(--red); }
details.trouble .plus::before { left: 0; right: 0; top: 5px; height: 2px; }
details.trouble .plus::after { top: 0; bottom: 0; left: 5px; width: 2px; }
details.trouble[open] .plus { transform: rotate(45deg); }
details.trouble p { padding: 0 4px 22px 32px; max-width: 60ch; font-size: 19px; line-height: 1.6; color: var(--text-2); }

.split { display: flex; flex-wrap: wrap; gap: 32px; align-items: flex-start; }
.split > * { flex: 1 1 320px; min-width: 0; }

.notes { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(320px, 100%), 1fr)); gap: 24px; }
.note { display: flex; flex-direction: column; gap: 8px; padding: 26px 28px 28px; box-shadow: 0 24px 60px rgba(0, 0, 0, .6); }
.note b { font-size: 22px; font-weight: 600; }
.note span { font-size: 19px; line-height: 1.55; }
.note code { font-size: 1.1em; }

.tabs { display: flex; flex-wrap: wrap; gap: 6px; padding-bottom: 6px; border-bottom: 1px solid var(--line); }
.tab {
  appearance: none; cursor: pointer; border: 0; background: transparent;
  display: flex; align-items: center; gap: 12px; min-height: 46px; padding: 0 22px 0 16px;
  color: var(--menu); font-size: 21px; font-variant: all-small-caps; letter-spacing: .14em;
}
.tab .sq { opacity: 0; }
.tab .sys { font-size: 16px; letter-spacing: .1em; opacity: .8; }
.tab:hover { color: #fff; }
.tab[aria-selected="true"] { background: var(--bar); color: #fff; }
.tab[aria-selected="true"] .sq { opacity: 1; }
.tabpanel[hidden] { display: none; }

.install-cia { display: flex; flex-wrap: wrap; gap: 40px; align-items: center; }
.install-cia .item { flex: none; width: min(250px, 100%); }
.install-cia .item-body { align-items: center; padding: 22px; gap: 14px; }
.install-cia .qr { width: 100%; }
.install-text { flex: 1 1 320px; min-width: 0; display: flex; flex-direction: column; gap: 20px; }
.install-text > p:first-child { font-size: 22px; line-height: 1.55; color: var(--hi); }
.actions { display: flex; flex-wrap: wrap; gap: 10px; }
.links { display: flex; flex-wrap: wrap; gap: 10px 32px; }

.controls { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(330px, 100%), 1fr)); column-gap: 32px; margin: 0; padding: 10px 22px 14px; }
.controls div { display: grid; grid-template-columns: 132px minmax(0, 1fr); align-items: center; gap: 16px; min-height: 58px; padding: 6px 0; border-bottom: 1px solid var(--line-2); }
.controls dt { margin: 0; }
.controls dd { margin: 0; font-size: 19px; line-height: 1.4; color: var(--text); }
.controls dd span { color: var(--dim); }
.key {
  display: inline-flex; align-items: center; justify-content: center; min-width: 44px; height: 36px; padding: 0 10px;
  border: 1px solid #4a4a4a; background: var(--panel-2);
  font: 400 21px/1 var(--mono); letter-spacing: .06em; color: var(--hi); white-space: nowrap; text-transform: uppercase;
}
.panel-foot { padding: 14px 22px 18px; border-top: 1px solid var(--line); font-size: 18px; line-height: 1.55; color: var(--text-2); }
.panel-foot strong { color: var(--hi); font-weight: 600; }

.fixes { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(250px, 100%), 1fr)); gap: 28px; }
.fixes div { display: flex; flex-direction: column; gap: 8px; padding-top: 18px; border-top: 1px solid var(--line); }
.fixes b { font-size: 21px; font-weight: 600; color: var(--hi); }
.fixes span { font-size: 18px; line-height: 1.55; color: var(--text-2); }
.fixes .lnk { align-self: flex-start; margin-top: 2px; padding-top: 14px; font-size: 19px; }

/* ---------------------------------------------------------------- roadmap */

.legend { display: flex; flex-wrap: wrap; gap: 8px 22px; font: 400 18px/1 var(--mono); letter-spacing: .14em; color: var(--dim); }
.legend span { display: inline-flex; align-items: center; gap: 8px; }

.chapters { list-style: none; margin: 0; padding: 0; }
.chap { display: flex; flex-wrap: wrap; align-items: flex-start; gap: 10px 26px; padding: 26px 24px; border-bottom: 1px solid #1e1e1e; }
.chap:last-child { border-bottom: 0; }
.chap-n { flex: none; width: 44px; font: 400 26px/1.3 var(--mono); color: #8a8a8a; }
.chap-body { flex: 1 1 380px; min-width: 0; display: flex; flex-direction: column; gap: 6px; }
.chap h3 { font-size: 26px; font-weight: 600; line-height: 1.25; color: var(--hi); }
.chap p { max-width: 60ch; font-size: 19px; line-height: 1.6; color: var(--text-2); }
.chap-state { flex: none; font: 400 22px/1.4 var(--mono); letter-spacing: .14em; color: var(--dim); }
.chap.done .chap-state { color: var(--text); }
.chap.now { background: linear-gradient(90deg, rgba(179, 18, 27, .42) 0%, rgba(179, 18, 27, .14) 55%, rgba(179, 18, 27, 0) 100%); border-bottom-color: #3a1416; }
.chap.now .chap-n, .chap.now .chap-state, .chap.now h3 { color: #fff; }
.chap.now p { color: #ececec; }
.box { flex: none; width: 12px; height: 12px; margin-top: .55em; }
.box.done { background: var(--text); }
.box.now { background: var(--red-hi); box-shadow: 0 0 14px rgba(226, 54, 60, .8); animation: pulse 1.8s ease-in-out infinite; }
.box.later { border: 1.5px solid #8a8a8a; }
.legend .box { margin: 0; width: 10px; height: 10px; }

.parts-paper { padding: clamp(22px, 4vw, 52px); }
.parts-scroll { overflow-x: auto; }
.parts { width: 100%; min-width: 600px; border-collapse: collapse; color: var(--ink); }
.parts th { text-align: left; font-weight: 400; font-size: 17px; font-variant: all-small-caps; letter-spacing: .16em; color: var(--ink-2); padding: 0 14px 12px 0; border-bottom: 2px solid var(--ink); }
.parts td { padding: 13px 14px 13px 0; border-bottom: 1px solid rgba(27, 27, 27, .18); font-size: 18px; line-height: 1.45; vertical-align: top; }
.parts td:first-child { font-weight: 600; white-space: nowrap; }
.parts tr:last-child td { border-bottom: 0; }
.st { display: inline-flex; align-items: center; gap: 9px; white-space: nowrap; font-variant: all-small-caps; letter-spacing: .12em; font-size: 19px; }
.st i { width: 11px; height: 11px; border: 1.5px solid var(--ink); flex: none; }
.st.working i { background: var(--ink); }
.st.mostly i { background: linear-gradient(90deg, var(--ink) 50%, transparent 50%); }
.st.notyet { color: #8f1015; }
.st.notyet i { border-color: #8f1015; }
.parts-legend { display: flex; flex-wrap: wrap; gap: 10px 24px; margin-bottom: 28px; color: var(--ink); }
.parts-foot { margin-top: 28px; font-size: 18px; line-height: 1.55; color: var(--ink-2); }
.parts-foot a { color: var(--ink); text-decoration-color: var(--red); text-underline-offset: 3px; }

.rel {
  display: flex; flex-wrap: wrap; align-items: baseline; gap: 8px 32px; padding: 24px;
  color: var(--text); text-decoration: none; border-bottom: 1px solid #1e1e1e;
}
.rel:last-child { border-bottom: 0; }
.rel:first-of-type { background: linear-gradient(90deg, rgba(179, 18, 27, .38), rgba(179, 18, 27, 0) 70%); }
.rel:hover { background: linear-gradient(90deg, rgba(179, 18, 27, .6), rgba(179, 18, 27, 0) 70%); }
.rel-tag { flex: none; width: 200px; display: flex; flex-direction: column; gap: 4px; font-family: var(--mono); text-transform: uppercase; }
.rel-tag b { font-weight: 400; font-size: 28px; line-height: 1; letter-spacing: .08em; color: #fff; }
.rel-tag span { font-size: 19px; letter-spacing: .12em; color: var(--dim); }
.rel-text { flex: 1 1 380px; min-width: 0; font-size: 19px; line-height: 1.6; color: var(--text-2); }
.rel:first-of-type .rel-text { color: #ececec; }

/* ---------------------------------------------------------------- docs */

.prose { display: flex; flex-direction: column; gap: 18px; }
.prose p, .prose li { font-size: 20px; line-height: 1.65; color: var(--text-2); }
.prose p strong, .prose li strong { color: var(--hi); font-weight: 600; }
.prose ul, .prose ol { margin: 0; padding-left: 1.2em; display: flex; flex-direction: column; gap: 6px; }
.prose li::marker { color: var(--red); }
.prose a { color: var(--hi); text-decoration-color: var(--red); text-underline-offset: 3px; }
.prose a:hover { color: #fff; text-decoration-color: var(--red-hi); }
.prose h3 { margin-top: 18px; font-size: 24px; font-weight: 600; color: var(--hi); }
.prose code:not(pre code) { font-size: 1.12em; color: var(--hi); }
.doc-section { display: flex; flex-direction: column; gap: 26px; scroll-margin-top: 24px; }
.doc-title { padding-bottom: 16px; border-bottom: 3px double #333; font-family: var(--display); font-size: clamp(26px, 3vw, 38px); line-height: 1.15; letter-spacing: .1em; text-transform: uppercase; color: var(--hi); }

.table-scroll { overflow-x: auto; border: 1px solid var(--line); background: var(--panel); }
.table { width: 100%; border-collapse: collapse; }
.table th { text-align: left; padding: 12px 18px; border-bottom: 1px solid var(--line); font-weight: 400; font-size: 18px; font-variant: all-small-caps; letter-spacing: .16em; color: var(--menu); }
.table td { padding: 12px 18px; border-bottom: 1px solid var(--line-2); font-size: 18px; line-height: 1.5; color: var(--text-2); vertical-align: top; }
.table tr:last-child td { border-bottom: 0; }
.table td:first-child { font: 400 20px/1.35 var(--mono); color: var(--hi); width: 44%; }
@media (min-width: 1060px) { .table td:first-child { white-space: nowrap; width: auto; } }

/* ---------------------------------------------------------------- 404 */

.lost .title { font-size: clamp(34px, 6vw, 84px); letter-spacing: .1em; padding-left: .1em; }

/* ---------------------------------------------------------------- motion */

@keyframes surface { from { opacity: 0; filter: blur(10px); transform: translateY(-.18em); } to { opacity: 1; filter: blur(0); transform: none; } }
@keyframes breathe { 0%, 100% { opacity: .75; } 50% { opacity: 1; } }
@keyframes blink { 50% { opacity: 0; } }
@keyframes pulse { 0%, 100% { opacity: 1; } 50% { opacity: .45; } }
@keyframes drift { from { transform: scale(1.02); } to { transform: scale(1.09) translateX(-1.5%); } }

@media (prefers-reduced-motion: no-preference) {
  html { scroll-behavior: smooth; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
}

/* ---------------------------------------------------------------- tablets and phones */

@media (hover: none) {
  .menu a:active, .side-menu a:active, .memo-tab:active, .tab:active { background: var(--bar); color: #fff; }
  .slot:active, .rel:active { background: linear-gradient(90deg, rgba(179, 18, 27, .7), rgba(179, 18, 27, 0) 80%); }
}

/* The memo list turns into a row of tabs directly above the memo, so a tap changes what is on screen. */
@media (max-width: 940px) {
  .memos { gap: 0; }
  .memo-side { display: contents; }
  .memo-side > .panel { order: 1; flex: 1 1 100%; min-width: 0; border-bottom: 0; }
  .memo-paper { order: 2; flex: 1 1 100%; }
  .memo-also { order: 3; flex: 1 1 100%; padding: 22px 4px 0; }
  .memo-list {
    flex-direction: row; overflow-x: auto; padding: 0;
    scroll-snap-type: x proximity; scrollbar-width: none;
    -webkit-mask-image: linear-gradient(90deg, #000 calc(100% - 40px), transparent);
    mask-image: linear-gradient(90deg, #000 calc(100% - 40px), transparent);
  }
  .memo-list::-webkit-scrollbar { display: none; }
  .memo-list::after { content: ""; flex: none; width: 40px; }
  .memo-tab { flex: none; width: auto; min-height: 52px; padding: 0 22px 0 16px; white-space: nowrap; font-size: 20px; scroll-snap-align: start; }
}

@media (max-width: 640px) {
  .parts { min-width: 0; }
  .parts thead { display: none; }
  .parts, .parts tbody { display: block; }
  .parts tr { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 4px 12px; padding: 14px 0; border-bottom: 1px solid rgba(27, 27, 27, .18); }
  .parts tr:last-child { border-bottom: 0; }
  .parts td { padding: 0; border: 0; }
  .parts td:first-child { white-space: normal; }
  .parts td:last-child { grid-column: 1 / -1; color: var(--ink-2); }

  /* Docs tables: the name on top, what it does underneath. */
  .table thead { display: none; }
  .table, .table tbody, .table tr, .table td { display: block; width: auto; }
  .table tr { padding: 14px 18px; border-bottom: 1px solid var(--line-2); }
  .table tr:last-child { border-bottom: 0; }
  .table td { padding: 0; border: 0; }
  .table td:first-child { margin-bottom: 4px; overflow-wrap: anywhere; }

  /* Chapters: number, mark and state on one line, the text below. */
  .chap { display: grid; grid-template-columns: auto auto 1fr auto; grid-template-areas: "n box . state" "body body body body"; align-items: center; gap: 12px 14px; padding: 22px 20px; }
  .chap-n { grid-area: n; width: auto; }
  .chap .box { grid-area: box; margin: 0; }
  .chap-state { grid-area: state; }
  .chap-body { grid-area: body; }
}

@media (max-width: 560px) {
  body { font-size: 19px; }
  body::after { box-shadow: inset 0 0 110px 20px rgba(0, 0, 0, var(--vignette)); }

  /* Header: the mark on one line, the four pages spread across the next. */
  .bar { padding: 12px var(--gutter) 4px; gap: 0; }
  .bar-over { padding-bottom: 12px; }
  .bar .nav { width: 100%; justify-content: space-between; gap: 0; font-size: 18px; letter-spacing: .12em; }
  .bar .nav a { padding: 12px 0; }
  .foot { padding: 52px var(--gutter) 60px; }
  .foot .nav { gap: 0 24px; }
  .foot .nav a { padding: 10px 0; }

  /* Title screen: the title on two lines, larger. */
  .title-screen { gap: 30px; padding: 96px 20px 120px; }
  .title { font-size: clamp(46px, 17vw, 76px); line-height: 1.04; }
  .title .word { display: block; }
  .eyebrow { font-size: 19px; }
  .title-video { filter: saturate(.5) contrast(1.08) brightness(.5) blur(.6px); }

  /* The opening still runs edge to edge, like a film. */
  .opening { padding: 8px 0 72px; }
  .scene { aspect-ratio: auto; box-shadow: none; }
  .scene-bar { flex: none; min-height: 26px; }
  .scene figcaption { flex: none; min-height: 0; padding: 16px 24px 20px; }

  .memo-paper { padding: 28px 22px 30px; }
  .memo h3 { font-size: 28px; }
  .memo p { font-size: 20px; }
  .memo-tab { font-size: 19px; padding: 0 18px 0 14px; }

  .slot { padding: 20px; gap: 6px 20px; }
  .slot-num { width: auto; }
  .slot-title { font-size: 23px; }
  .item-body { padding: 22px 20px; }

  .faq { gap: 20px; }
  .faq article { padding: 28px 24px 30px; }
  .faq h3 { font-size: 24px; }
  .faq p { font-size: 19px; }

  .page-head { padding: 64px var(--gutter) 56px; }
  .page-head .wrap-narrow { gap: 22px; }
  .facts { flex-direction: column; align-items: center; gap: 4px; font-size: 19px; }
  .facts i { display: none; }

  .step { gap: 26px; }
  .step-num { font-size: 21px; }
  .step-lede { font-size: 20px; }
  .code { padding: 16px; font-size: 19px; }
  .code-head { padding-left: 16px; }
  .field-box { padding: 18px; }
  .option-row { padding: 8px 8px 8px 18px; }
  .cycler output { min-width: 104px; font-size: 24px; }
  details.trouble p { padding-left: 28px; }

  .install-cia { flex-direction: column; align-items: stretch; gap: 28px; }
  .install-cia .item { width: 100%; }
  .install-cia .qr { width: min(240px, 100%); }
  .actions .btn { flex: 1 1 100%; }
  .tabs { flex-direction: column; gap: 4px; }
  .tab { width: 100%; padding: 8px 16px 8px 14px; font-size: 20px; line-height: 1.25; text-align: left; }
  .tab .sys { margin-left: auto; }
  .controls { padding: 6px 18px 10px; }
  .controls div { grid-template-columns: 118px minmax(0, 1fr); gap: 12px; }
  .controls dd { font-size: 18px; }
  .panel-foot { padding: 14px 18px 16px; }
  .note { padding: 22px 22px 24px; }

  .rel { padding: 20px; }
  .rel-tag { width: auto; }
  .parts-paper { padding: 24px 20px; }
  .doc-title { font-size: 26px; }
  .prose p, .prose li { font-size: 19px; }
}

@media (max-width: 420px) {
  .tab .sys { display: none; }
}

/* Short phones (and phones held sideways): a tighter title screen so the whole menu fits. */
@media (max-height: 640px) and (max-width: 560px) {
  .title-screen { gap: 22px; padding: 76px 20px 96px; }
  .title { font-size: clamp(42px, 15vw, 64px); }
  .menu a { padding-block: 5px; }
}