/* Shared Sneekie site stylesheet: site-wide tokens, chrome, document
   components, and widgets used by more than one page. */

*{ box-sizing:border-box; }

:root{
  --black:#000;
  --room1:#14171a;
  --room2:#0a0c0d;
  --room3:#060708;
  --panel:#13171a;
  --panel2:#1b2025;
  --button:#16181b;
  --border:#33383d;
  --text:#c2cace;
  --muted:#889196;
  --accent:#7dff7d;
  --heading:#b6ffb6;
  --codebg:#06090a;
  --glow:rgba(125,255,125,.13);
  --phos:#7dff7d;
  --ink:#a3edab;
  --ink-dim:#7fcf8a;
  --bezel1:#2c3034;
  --bezel2:#1c1f22;
  --bg:#020503;
  --gut:#44864f;
  --ln:#46c95a;
  --kw:#d6ffd6;
  --fn:#7ff09a;
  --str:#5ad06f;
  --num:#a9f4b6;
  --com:#3c8f49;
  --id:#86ff86;
  --op:#54bf69;
  --pn:#4a9a5a;
  --annot:#e3a857;
  --tagbas:#e3a857;
  --tagjs:#58a6ff;
  --green:#7dff7d;
  --greenhi:#c8ffc8;
  --red:#ff5e5e;
  --club:#66e066;
  --smiley:#ffd93d;
  --stone:#d08a43;
  --wall:#8b949e;
  --empty:#6b757f;
  --room:#5b9bff;
  --arrow:#d886ff;
  --blue:#79c0ff;
  --crt-case-bg:linear-gradient(168deg, #7a8289 0%, #626b72 46%, #434b52 100%);
  --crt-case-shadow:0 38px 84px -28px rgba(0,0,0,.95), 0 8px 20px -8px rgba(0,0,0,.7), inset 0 2px 0 rgba(255,255,255,.18), inset 0 -3px 9px rgba(0,0,0,.38), inset 0 0 0 1px rgba(0,0,0,.42);
  --crt-case-hover-shadow:0 40px 90px -26px rgba(0,0,0,.95), 0 8px 20px -8px rgba(0,0,0,.7), inset 0 2px 0 rgba(255,255,255,.20), inset 0 -3px 9px rgba(0,0,0,.38), inset 0 0 0 1px rgba(0,0,0,.42), 0 0 24px -6px var(--accent);
  --crt-logo:#303840;
  --crt-logo-shadow:0 1px 0 rgba(255,255,255,.22), 0 -1px 0 rgba(0,0,0,.35);
  --crt-knob-bg:radial-gradient(circle at 38% 30%, #737d85, #3d454c 62%, #1d2227 100%);
}

html{
  background:var(--black);
  scroll-behavior:smooth;
  scroll-padding-top:64px;
}
html{ min-height:100%; }

body{
  margin:0;
  background:radial-gradient(1300px 760px at 50% 12%, var(--room1) 0%, var(--room2) 55%, var(--room3) 100%);
  color:var(--text);
  -webkit-text-size-adjust:100%;
}

.page-doc{
  min-height:100vh;
  font:15px/1.65 system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}
.page-doc main{
  max-width:960px;
  margin:0 auto;
  padding:12px 20px 70px;
}

/* Shared chrome */
.skip{
  position:fixed;
  left:8px;
  top:-50px;
  z-index:40;
  padding:9px 14px;
  background:var(--button);
  color:var(--ink);
  border:1px solid var(--border);
  border-radius:0 0 5px 5px;
  text-decoration:none;
  transition:top .15s ease;
}
.skip:focus{ top:0; }

/* Keyboard-focus affordance for every interactive control. :focus-visible keeps
   mouse/touch clicks ringless while giving keyboard users a clear, consistent
   indicator (the hover glow is otherwise invisible to them). */
a:focus-visible,
button:focus-visible,
input:focus-visible,
summary:focus-visible,
[role="tab"]:focus-visible{
  outline:2px solid var(--accent);
  outline-offset:2px;
}

/* Shared close button for the manual lightbox and the magazine page viewer.
   Pages add the position-specific bits (.page-manual #lb-close / .page-magazine
   #page-fs-close); the look lives here so the two stay in sync. */
.fs-close{
  width:44px;
  height:44px;
  font:22px/1 system-ui, -apple-system, "Segoe UI", sans-serif;
  color:#cfd6da;
  background:rgba(22,24,27,.82);
  border:1px solid var(--border);
  border-radius:8px;
  cursor:pointer;
  transition:color .12s, border-color .12s, box-shadow .12s, background .12s;
}
.fs-close:hover{ color:var(--accent); border-color:var(--accent); background:var(--button); }

/* Decorative side speakers used by the home preview, playable game, and bot CRTs. */
.crt-speaker{
  position:absolute;
  top:auto;
  bottom:0;
  z-index:0;
  display:block;
  width:clamp(96px, 8.8vw, 118px);
  height:clamp(280px, 72%, 340px);
  overflow:hidden;
  pointer-events:none;
  border:1px solid rgba(255,255,255,.42);
  border-radius:44% 44% 14px 14px / 8% 8% 13px 13px;
  background:radial-gradient(ellipse at 50% 0, rgba(255,255,255,.72) 0 24%, transparent 25%),
    linear-gradient(90deg, rgba(0,0,0,.24), transparent 12% 88%, rgba(0,0,0,.22)),
    linear-gradient(155deg, #d8d0b6 0%, #beb293 52%, #8b826c 100%);
  box-shadow:0 34px 70px -34px rgba(0,0,0,.98), inset 0 3px 0 rgba(255,255,255,.5), inset 0 -18px 26px rgba(65,54,35,.32);
}
.crt-speaker-left{
  right:calc(100% + clamp(14px, 1.7vw, 22px));
  transform:perspective(320px) rotateY(-5deg);
  transform-origin:right center;
}
.crt-speaker-right{
  left:calc(100% + clamp(14px, 1.7vw, 22px));
  transform:perspective(320px) rotateY(5deg);
  transform-origin:left center;
}
.crt-speaker::before{
  content:"";
  position:absolute;
  left:50%;
  top:clamp(20px, 7%, 30px);
  width:84%;
  aspect-ratio:1;
  border:3px solid #151512;
  border-radius:50%;
  transform:translateX(-50%);
  background:radial-gradient(circle, rgba(21,19,15,.92) 0 1.2px, transparent 1.55px) 0 0 / 6px 6px,
    radial-gradient(circle at 38% 28%, #f1ead5 0%, #d0c5a5 54%, #8f856f 100%);
  box-shadow:0 2px 0 rgba(255,255,255,.22), inset 0 0 0 2px rgba(255,255,255,.18), inset 0 0 22px rgba(0,0,0,.42);
}
.crt-speaker::after{
  content:"";
  position:absolute;
  right:9px;
  bottom:9px;
  left:9px;
  height:42%;
  display:block;
  background:radial-gradient(ellipse at 20% 28%, #070705 0 14%, #332d1d 15% 22%, transparent 24%),
    radial-gradient(ellipse at 80% 28%, #070705 0 14%, #332d1d 15% 22%, transparent 24%),
    radial-gradient(circle at 21% 84%, #65cf93 0 6%, #102115 7% 12%, transparent 13%),
    radial-gradient(circle at 78% 84%, #e7dcc2 0 9%, #90836a 10% 18%, #2f2b22 19% 22%, transparent 23%),
    linear-gradient(180deg, transparent 0 56%, rgba(43,38,27,.36) 57% 59%, rgba(231,221,190,.52) 60% 100%);
  border-radius:0 0 9px 9px;
}
#bezel:fullscreen .crt-speaker{
  display:none;
}
@media (max-width:980px){
  .crt-speaker{
    display:none;
  }
}
header.top{
  position:sticky;
  top:0;
  z-index:20;
  width:100%;
  display:flex;
  align-items:center;
  gap:14px;
  flex-wrap:wrap;
  margin:0 0 12px;
  padding:10px 18px;
  background:linear-gradient(var(--room1), rgba(10,12,13,.86));
  border-bottom:1px solid var(--border);
  -webkit-backdrop-filter:blur(6px);
  backdrop-filter:blur(6px);
  font-family:ui-monospace, "SF Mono", Menlo, Consolas, "Cascadia Mono", monospace;
}
header.top .brand{
  display:inline-flex;
  align-items:center;
  line-height:0;
}
header.top .brand img{
  display:block;
  width:auto;
  height:24px;
}
header.top nav{
  display:flex;
  gap:6px;
  flex-wrap:wrap;
  margin-left:auto;
}
header.top .lang-switch{
  display:flex;
  align-items:center;
  gap:5px;
}
header.top nav a,
header.top .lang-switch a{
  font:inherit;
  font-size:11px;
  letter-spacing:.1em;
  text-transform:uppercase;
  color:var(--ink);
  background:var(--button);
  border:1px solid var(--border);
  border-radius:3px;
  padding:6px 11px;
  cursor:pointer;
  text-decoration:none;
  white-space:nowrap;
  transition:color .12s, border-color .12s, box-shadow .12s, background .12s;
}
header.top .lang-switch a{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:32px;
  height:32px;
  padding:0;
}
header.top .lang-flag{
  display:block;
  width:24px;
  height:16px;
  border-radius:1px;
  box-shadow:0 0 0 1px rgba(234,255,203,.22);
  object-fit:cover;
}
header.top nav a:hover,
header.top nav a[aria-current="page"],
header.top .lang-switch a:hover,
header.top .lang-switch a[aria-current="true"]{
  color:var(--accent);
  border-color:var(--accent);
}
header.top nav a[aria-current="page"],
header.top .lang-switch a[aria-current="true"]{
  box-shadow:0 0 12px -5px var(--accent);
}
header.top nav a[aria-current="page"]{
  cursor:default;
}

h1.page-title,
body h1.page-title{
  color:#fff;
  text-align:center;
  font-weight:800;
  line-height:1.14;
  font-size:clamp(28px, 5vw, 50px);
  margin:22px 0 18px;
}
footer{
  max-width:960px;
  margin:46px auto 0;
  padding:18px 20px;
  border-top:1px solid var(--border);
  color:var(--ink-dim);
  font-size:12.5px;
  line-height:1.7;
  text-align:center;
}
footer a{
  color:var(--ink);
  text-decoration:none;
  border-bottom:1px dotted var(--ink-dim);
}
footer a:hover{
  color:var(--accent);
  border-color:var(--accent);
}

/* Shared document page language */
.page-doc a{ color:var(--accent); text-decoration:none; }
.page-doc a:hover{ text-decoration:underline; }
.page-doc code,
.page-doc pre,
.page-doc kbd,
.page-doc .mono,
.page-doc .formula,
.page-doc table .g,
.page-doc .toc,
.page-doc .badge{
  font-family:ui-monospace, "SF Mono", Menlo, Consolas, "Cascadia Mono", monospace;
}
.page-doc .hero .sub,
.page-doc h1 .sub{
  display:block;
  color:var(--muted);
  font-size:15px;
  font-weight:500;
  letter-spacing:0;
  margin-top:6px;
}
.page-doc .lead{
  max-width:860px;
  color:var(--text);
}
.page-manual main > .lead:first-of-type,
.page-magazine main > .lead:first-of-type,
.page-migration main > .lead:first-of-type,
.page-vram main > .lead:first-of-type{
  max-width:820px;
  margin:2px auto 8px;
  color:#d6ded8;
  font-size:18px;
  line-height:1.65;
  text-align:center;
}
.page-doc .intro-figure,
.page-source .intro-figure,
.page-doc .closing-figure,
.page-source .closing-figure,
.page-index .closing-figure{
  max-width:960px;
  margin:24px auto 32px;
}
.page-doc .intro-figure,
.page-source .intro-figure{
  width:100%;
}
.page-doc .closing-figure,
.page-source .closing-figure,
.page-index .closing-figure{
  margin:42px auto 0;
}
.page-doc .intro-figure img,
.page-source .intro-figure img,
.page-doc .closing-figure img,
.page-source .closing-figure img,
.page-index .closing-figure img{
  display:block;
  width:100%;
  height:auto;
  aspect-ratio:1200 / 676;
  object-fit:cover;
  border:1px solid color-mix(in srgb, var(--accent) 24%, var(--border));
  border-radius:10px;
  background:#050607;
  box-shadow:0 20px 52px -32px rgba(0,0,0,.95);
}
.page-explained .intro-figure img,
.page-magazine .intro-figure img,
.page-source .intro-figure img,
.page-manual .intro-figure img,
.page-migration .intro-figure img,
.page-vram .intro-figure img{
  height:clamp(170px, 34vw, 390px);
  aspect-ratio:auto;
  object-position:center var(--intro-image-y, 50%);
}
.page-explained{ --intro-image-y:42%; }
.page-magazine{ --intro-image-y:48%; }
.page-source{ --intro-image-y:45%; }
.page-manual{ --intro-image-y:50%; }
.page-migration{ --intro-image-y:42%; }
.page-vram{ --intro-image-y:44%; }
.page-source .intro-figure img{ height:clamp(160px, 30vw, 360px); }
.page-doc .intro-figure figcaption,
.page-source .intro-figure figcaption,
.page-doc .closing-figure figcaption,
.page-source .closing-figure figcaption,
.page-index .closing-figure figcaption{
  margin-top:9px;
  color:var(--muted);
  font-size:13px;
  line-height:1.5;
  text-align:center;
}
.page-doc .lead em,
.page-doc strong,
.page-doc td b{
  color:var(--heading);
  font-style:normal;
  font-weight:600;
}
.page-doc h2{
  color:var(--heading);
  font-size:20px;
  margin:38px 0 8px;
  padding-bottom:6px;
  border-bottom:1px solid var(--border);
}
.page-doc h3{
  color:var(--greenhi);
  font-size:15px;
  margin:20px 0 5px;
}
.page-doc p,
.page-doc ul,
.page-doc ol{ max-width:860px; }
.page-doc li{ margin:3px 0; }
.page-doc code{
  background:var(--codebg);
  border:1px solid var(--border);
  border-radius:4px;
  padding:.5px 5px;
  font-size:.86em;
  color:var(--heading);
}
.page-doc pre,
.page-doc .formula{
  background:var(--codebg);
  border:1px solid var(--border);
  color:#c9d1d9;
}
.page-doc pre{
  max-width:100%;
  overflow:auto;
  border-radius:8px;
  padding:12px 14px;
  font:12.5px/1.55 ui-monospace, "SF Mono", Menlo, Consolas, monospace;
}
.page-doc pre code{
  background:none;
  border:0;
  border-radius:0;
  padding:0;
  color:inherit;
  font:inherit;
}
.page-doc .formula{
  display:inline-block;
  border-radius:6px;
  padding:2px 8px;
  font-size:13.5px;
  color:var(--heading);
}
.page-doc kbd{
  font-size:.82em;
  background:var(--panel2);
  color:var(--greenhi);
  border:1px solid var(--border);
  border-bottom-width:2px;
  border-radius:4px;
  padding:1px 6px;
  white-space:nowrap;
}
.page-doc table{
  width:100%;
  max-width:960px;
  border-collapse:collapse;
  margin:12px 0;
  font-size:13.5px;
}
.page-doc th,
.page-doc td{
  text-align:left;
  vertical-align:top;
  border:1px solid var(--border);
  padding:6px 10px;
}
.page-doc th{
  background:var(--panel);
  color:var(--muted);
  font:600 11px/1.35 ui-monospace, monospace;
  letter-spacing:.06em;
  text-transform:uppercase;
}
.page-doc tbody tr:nth-child(odd){ background:rgba(255,255,255,.015); }
.page-doc .gloss td:first-child,
.page-doc .chars td:first-child,
.page-doc .map td:first-child{
  white-space:nowrap;
}
.page-doc table .g,
.page-doc td.mono{ color:var(--num); }
.page-doc .note,
.page-doc .callout,
.page-doc .panel,
.page-doc .card,
.page-doc .toc{
  background:var(--panel);
  border:1px solid var(--border);
  border-radius:8px;
}
.page-doc .note,
.page-doc .callout{
  border-left:3px solid var(--accent);
  max-width:860px;
}
.page-doc .note{
  padding:11px 14px;
  margin:17px 0;
  font-size:13.5px;
}
.page-doc .callout{
  padding:18px 20px;
  margin:24px 0;
}
.noscript-warn{
  display:block;
  margin:24px auto;
  max-width:860px;
  padding:14px 18px;
  background:#3a0d0d;
  color:#ffb3b3;
  border:1px solid #a33;
  border-radius:8px;
  text-align:center;
  font:13.5px/1.55 ui-monospace, "SF Mono", Menlo, Consolas, monospace;
}
.page-doc .callout h2,
.page-doc .toc h2{
  margin:0 0 8px;
  padding:0;
  border:0;
}
.page-doc .callout h2{ font-size:17px; }
.page-doc .panel{ padding:6px 14px 12px; }
.page-doc .panel h3{ margin:12px 2px 2px; font-size:14px; }
.page-doc .grid2{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:18px;
}
.page-doc .toc{
  max-width:900px;
  margin:28px 0;
  padding:14px 18px;
}
.page-doc .toc h2{
  color:var(--muted);
  font-size:13px;
  text-transform:uppercase;
  letter-spacing:.06em;
}
.page-doc .toc ol{
  margin:0;
  padding:0;
  list-style:none;
  columns:2;
  column-gap:28px;
  font-size:13.5px;
}
.page-doc .toc li{ break-inside:avoid; }
.page-doc .toc .n{
  display:inline-block;
  width:1.8em;
  color:var(--muted);
}
.page-doc .ico{
  font-family:ui-monospace, monospace;
  font-weight:700;
}
.page-doc .ico.h{ color:var(--red); }
.page-doc .ico.c{ color:var(--club); }
.page-doc .ico.s{ color:var(--smiley); }
.page-doc .ico.t{ color:var(--stone); }
.page-doc .ico.a{ color:var(--arrow); }
.page-doc .ico.w{ color:#5ad0d0; }
section.card{ padding:13px 15px; }

/* Shared code-listing widgets: Explained + Migration */
section.card,
section.pairsec{
  margin:34px 0 0;
  scroll-margin-top:64px;
}
section.card .head,
.phead{
  display:flex;
  align-items:baseline;
  gap:10px;
  margin-bottom:8px;
}
.badge{
  flex:0 0 auto;
  min-width:24px;
  height:24px;
  padding:0 6px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  background:var(--panel2);
  color:var(--accent);
  font:600 12px/1 ui-monospace, monospace;
}
section.card h2,
.phead h2{
  margin:0;
  padding:0;
  border:0;
  font-size:19px;
}
section.card .lines{
  color:var(--muted);
  font-size:12.5px;
  font-family:ui-monospace, monospace;
}
section.card .prose,
.pairsec .prose{
  max-width:900px;
  margin:0 0 10px;
}
.src,
.col{
  background:var(--codebg);
  border:1px solid var(--border);
  border-radius:8px;
}
.src{
  padding:12px 0;
  margin:10px 0 0;
  overflow-x:auto;
  font:13px/1.55 ui-monospace, "SF Mono", Menlo, Consolas, "Cascadia Mono", monospace;
}
.src:empty{ display:none; }
.ln-row,
.cl{
  white-space:pre;
  padding:0 16px;
}
.ln-row:hover,
.cl:hover{ background:color-mix(in srgb, var(--accent) 8%, transparent); }
.annot{
  white-space:pre-wrap;
  padding:1px 16px 5px;
  color:var(--annot);
  font-size:12px;
  font-style:italic;
}
.annot .mk{ font-style:normal; opacity:.8; }
.pair{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:14px;
  align-items:start;
}
.col{ overflow:hidden; }
.col .tag{
  padding:5px 12px;
  border-bottom:1px solid var(--border);
  text-transform:uppercase;
  font:600 11px/1.4 ui-monospace, monospace;
  letter-spacing:.04em;
}
.tag.bas{ color:var(--tagbas); }
.tag.js{ color:var(--tagjs); }
.col .code{
  overflow-x:auto;
  padding:10px 0;
  font:12.5px/1.5 ui-monospace, "SF Mono", Menlo, Consolas, monospace;
}
.gap{
  color:var(--muted);
  text-align:center;
  padding:2px 0;
  -webkit-user-select:none;
  user-select:none;
  opacity:.6;
}
.t-ln{ color:var(--ln); }
.t-kw{ color:var(--kw); font-weight:600; }
.t-fn{ color:var(--fn); }
.t-op{ color:var(--op); }
.t-str{ color:var(--str); }
.t-num{ color:var(--num); }
.t-com{ color:var(--com); font-style:italic; }
.t-id{ color:var(--id); }
.t-pn{ color:var(--pn); }

@media (max-width:720px){
  .page-doc .grid2{ grid-template-columns:1fr; }
  .page-manual main > .lead:first-of-type,
  .page-magazine main > .lead:first-of-type,
  .page-migration main > .lead:first-of-type,
  .page-vram main > .lead:first-of-type{
    font-size:16px;
    text-align:left;
  }
}
@media (max-width:640px){
  .page-doc .toc ol{ columns:1; }
  .page-doc table{ display:block; width:100%; overflow-x:auto; }
  .page-doc .gloss td:first-child,
  .page-doc .chars td:first-child,
  .page-doc .map td:first-child{ white-space:normal; }
}
@media (max-width:520px){
  body{ overflow-x:hidden; }
  header.top{
    gap:8px;
    margin:0 0 10px;
    padding:8px 10px 7px;
  }
  header.top .brand img{ height:22px; }
  header.top .lang-switch{
    margin-left:auto;
  }
  header.top nav{
    flex:1 1 100%;
    order:2;
    flex-wrap:nowrap;
    gap:5px;
    margin-left:0;
    overflow-x:auto;
    overscroll-behavior-x:contain;
    padding-bottom:3px;
    -webkit-overflow-scrolling:touch;
    scrollbar-width:none;
  }
  header.top nav::-webkit-scrollbar{ display:none; }
  header.top nav a{
    flex:0 0 auto;
    font-size:10px;
    letter-spacing:.06em;
    padding:6px 9px;
    min-height:32px;
  }
  header.top .lang-switch a{
    width:32px;
    height:32px;
  }
  h1.page-title,
  body h1.page-title{
    font-size:clamp(25px, 9vw, 34px);
    margin:14px 0 11px;
  }
  .page-doc main{ padding:12px 16px 60px; }
  footer{
    font-size:11px;
    line-height:1.55;
    padding-top:12px;
  }
}
@media print{
  @page{ margin:14mm; }
  header.top,
  .toc{ display:none !important; }
  body,
  .page-doc{
    display:block;
    background:#fff;
    color:#111;
    padding:0;
  }
  body h1.page-title{ color:#000; }
  footer{ color:#444; border-color:#ccc; }
  .src,
  .col .code{ overflow:visible; }
  .ln-row,
  .cl{ white-space:pre-wrap; }
  .card,
  .note,
  pre,
  .formula{ break-inside:avoid; }
}
/* Respect a reduced-motion preference: neutralize CSS animations/transitions
   (the CRT power-on, mode-flicker, and the VRAM cell pulse). The tiny non-zero
   duration keeps animationend events firing so boot/transition chains still
   complete. The JS-timed boot show honors reduced-motion separately in game.js. */
@media (prefers-reduced-motion: reduce){
  *, *::before, *::after{
    animation-duration:.01ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.01ms !important;
    scroll-behavior:auto !important;
  }
}