/* Brutalist theme — Kevin Sit
   Black screen, acid-green text, magenta and cyan for signal. Everything is
   monospace except display type, which is Archivo Black set huge, often as
   an outline. Sections are dashed boxes labelled like source. */

:root {
  --bg: #0a0a0a;
  --ink: #c6ff00;          /* acid */
  --acc: #ff2bd6;          /* magenta: excitation, CTAs, pending status */
  --cyan: #00e5ff;         /* cyan: suppression, tags, secondary */
  --dim: rgba(198, 255, 0, 0.55);

  --mono: "Space Mono", "SFMono-Regular", Menlo, Consolas, monospace;
  --disp: "Archivo Black", Impact, "Arial Black", sans-serif;

  --line: 2px solid var(--ink);
  --dash: 2px dashed var(--ink);
  --pad: clamp(12px, 2.5vw, 24px);
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; background: var(--bg); }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: 0.001ms !important; transition-duration: 0.001ms !important; }
}

body {
  margin: 0; background: var(--bg); color: var(--ink);
  font: 14px/1.55 var(--mono);
  -webkit-font-smoothing: antialiased;
}
a { color: var(--cyan); }
a:hover { background: var(--acc); color: var(--bg); text-decoration: none; }
p { margin: 0 0 0.9em; max-width: 72ch; }
p:last-child { margin-bottom: 0; }
b { font-weight: 700; }
::selection { background: var(--acc); color: var(--bg); }

.disp { font-family: var(--disp); font-weight: 400; text-transform: uppercase; line-height: 0.92; letter-spacing: -0.02em; }
h1, h2, h3, h4 { margin: 0; }
.tag { color: var(--cyan); font-size: 12px; }
.tag::before { content: "<"; } .tag::after { content: ">"; }
.visually-hidden { position: absolute; left: -9999px; }

/* ---------- Top bar ---------- */
.bar {
  position: sticky; top: 0; z-index: 30; background: var(--bg);
  display: flex; justify-content: space-between; align-items: center; gap: 12px; flex-wrap: wrap;
  padding: 10px var(--pad); border-bottom: var(--line);
}
.bar .prompt a { color: var(--ink); text-decoration: none; }
.bar .prompt a:hover { background: none; color: var(--acc); }
.bar .cur::after { content: "█"; margin-left: 2px; animation: blink 1s steps(1) infinite; }
@keyframes blink { 50% { opacity: 0; } }
.bar nav { display: flex; gap: 14px; flex-wrap: wrap; }
.bar nav a { color: var(--ink); text-decoration: none; }
.bar nav a[aria-current="true"] { background: var(--ink); color: var(--bg); }
.bar nav a:hover { background: var(--acc); color: var(--bg); }
.bar nav a.print { color: var(--cyan); }

/* ---------- Tag boxes ---------- */
.box { position: relative; border: var(--dash); margin: 14px var(--pad); padding: var(--pad); scroll-margin-top: 64px; }
.box::before, .box::after { position: absolute; top: -9px; background: var(--bg); padding: 0 6px; font-size: 12px; line-height: 1.3; }
.box::before { content: "<" attr(data-tag) ">"; left: 10px; color: var(--cyan); }
.box::after { content: attr(data-n); right: 10px; color: var(--acc); }
.box > h2.disp { font-size: clamp(34px, 7vw, 84px); margin: 0 0 14px; }

/* ---------- Hero ---------- */
.hero .grid { display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr); gap: var(--pad); align-items: start; }
@media (max-width: 760px) { .hero .grid { grid-template-columns: 1fr; } }
.hero h1 {
  font-size: clamp(38px, 6.4vw, 112px); margin: 4px 0 14px; min-width: 0; overflow-wrap: anywhere;
  color: transparent; -webkit-text-stroke: 2px var(--ink);
}
.hero h1 span { color: var(--ink); -webkit-text-stroke: 0; }
.hero h1 i { font-style: normal; color: var(--acc); -webkit-text-stroke: 0; }
.hero .lede { font-size: 15px; }
.hero .hint { display: block; margin: 0 0 12px; }
.opsins { display: flex; flex-wrap: wrap; gap: 8px; }
.opsins button, .btn {
  font: 700 13px/1 var(--mono); text-transform: uppercase; padding: 10px 12px; cursor: pointer;
  border: var(--line); background: transparent; color: var(--ink);
}
.opsins button:hover, .btn:hover { background: var(--acc); color: var(--bg); border-color: var(--acc); }
.opsins button[aria-pressed="true"] { background: var(--ink); color: var(--bg); }
.opsins button.sup { border-color: var(--cyan); color: var(--cyan); }
.opsins button.sup:hover, .opsins button.sup[aria-pressed="true"] { background: var(--cyan); color: var(--bg); }
.opsins button.exc { border-color: var(--acc); color: var(--acc); }
.opsins button.exc:hover, .opsins button.exc[aria-pressed="true"] { background: var(--acc); color: var(--bg); }
.opsins .btn { margin-left: auto; }

.fov { position: relative; border: var(--line); background: #000; height: clamp(280px, 46vh, 460px); cursor: none; overflow: hidden; }
.fov canvas { display: block; width: 100%; height: 100%; }
.fov .hud { position: absolute; left: 8px; top: 6px; font-size: 12px; pointer-events: none; }
.fov .hud2 { position: absolute; right: 8px; bottom: 6px; font-size: 12px; color: var(--acc); pointer-events: none; text-align: right; }
/* cursor-following crosshair */
.fov .xhair { position: absolute; left: 0; top: 0; width: 0; height: 0; pointer-events: none; opacity: 0; transition: opacity 0.15s; }
.fov:hover .xhair { opacity: 1; }
.fov .xhair::before, .fov .xhair::after { content: ""; position: absolute; background: var(--ink); mix-blend-mode: difference; }
.fov .xhair::before { left: -100vw; right: -100vw; top: 0; height: 1px; width: 200vw; }
.fov .xhair::after { top: -100vh; bottom: -100vh; left: 0; width: 1px; height: 200vh; }
.fov .xhair i { position: absolute; left: -12px; top: -12px; width: 24px; height: 24px; border: 1px solid var(--ink); border-radius: 50%; }
.fov .xhair.sup i, .fov .xhair.sup::before, .fov .xhair.sup::after { border-color: var(--cyan); background: var(--cyan); }
.fov .xhair.exc i, .fov .xhair.exc::before, .fov .xhair.exc::after { border-color: var(--acc); background: var(--acc); }
.fov .xhair i { background: transparent !important; }
@media (hover: none) { .fov { cursor: crosshair; } .fov .xhair { display: none; } }

/* ---------- Ticker ---------- */
.ticker { overflow: hidden; white-space: nowrap; border-top: var(--line); border-bottom: var(--line); background: var(--ink); color: var(--bg); font-weight: 700; text-transform: uppercase; }
.ticker .track { display: inline-block; padding: 6px 0; will-change: transform; }
.ticker .track span { padding-right: 1.5em; }

/* ---------- About ---------- */
.about { display: grid; grid-template-columns: 200px minmax(0, 1fr); gap: var(--pad); }
@media (max-width: 700px) { .about { grid-template-columns: 1fr; } .about .side { max-width: 240px; } }
.about .pic {
  border: 2px solid var(--acc); display: block; width: 100%; height: auto; aspect-ratio: 1; object-fit: cover;
  image-rendering: pixelated; image-rendering: crisp-edges;
}
body.plain .about .pic { filter: grayscale(1) contrast(1.2); animation: none !important; }
.cta {
  display: inline-block; margin-top: 12px; padding: 12px 16px;
  background: var(--acc); color: var(--bg); border: 2px solid var(--acc);
  font: 700 13px/1 var(--mono); text-transform: uppercase; text-decoration: none;
}
.cta:hover { background: transparent; color: var(--acc); }
.about .side .meta { margin-top: 12px; font-size: 12px; color: var(--cyan); }

/* ---------- Papers ---------- */
.papers { overflow: hidden; }
.papers .wm {
  position: absolute; right: -0.05em; bottom: -0.18em; z-index: 0; pointer-events: none;
  font-family: var(--disp); text-transform: uppercase; line-height: 1; white-space: nowrap;
  font-size: clamp(72px, 20vw, 260px); color: transparent; -webkit-text-stroke: 2px var(--ink); opacity: 0;
  transition: opacity 0.2s; transform: rotate(-4deg);
}
.papers .wm.on { opacity: 0.16; }
.papers > * { position: relative; z-index: 1; }
.grp { margin: 18px 0 4px; color: var(--acc); text-transform: uppercase; font-weight: 700; }
.grp::before { content: "## "; }
.grp:first-of-type { margin-top: 4px; }
.entries { list-style: none; margin: 0; padding: 0; counter-reset: p; }
.entries > li {
  counter-increment: p; display: grid; grid-template-columns: 44px minmax(0, 1fr) auto; gap: 6px 10px;
  padding: 10px 6px 10px 0; border-top: 1px solid var(--ink);
}
.entries > li::before { content: counter(p, decimal-leading-zero); color: var(--cyan); padding-left: 4px; }
.entries > li:hover { background: var(--acc); color: var(--bg); }
.entries > li:hover::before, .entries > li:hover .venue, .entries > li:hover .venue .status, .entries > li:hover .authors, .entries > li:hover a { color: var(--bg); }
.entries > li:hover a { background: var(--bg); color: var(--acc); }
.entries h4 { font-family: var(--disp); text-transform: uppercase; font-size: 15px; line-height: 1.2; text-wrap: balance; }
.entries .main { min-width: 0; }
.entries .authors { font-size: 12px; opacity: 0.85; margin: 2px 0 0; }
.entries .summary { font-size: 13px; margin: 8px 0 0; opacity: 0.9; }
.entries .links { margin: 8px 0 0; font-weight: 700; font-size: 12px; text-transform: uppercase; display: flex; gap: 14px; }
.entries .links a::before { content: "> "; }
.entries .venue { grid-column: 3; color: var(--acc); font-size: 12px; text-align: right; white-space: nowrap; margin: 0; }
.entries .venue .status { color: var(--acc); font-weight: 700; }
.entries .venue .status.pending { color: var(--cyan); }
@media (max-width: 700px) {
  .entries > li { grid-template-columns: 36px minmax(0, 1fr); }
  .entries .venue { grid-column: 2; text-align: left; white-space: normal; }
}
details.talks { margin-top: 18px; border-top: var(--line); padding-top: 8px; }
details.talks summary { cursor: pointer; list-style: none; font-weight: 700; text-transform: uppercase; color: var(--acc); }
details.talks summary::-webkit-details-marker { display: none; }
details.talks summary::before { content: "[+] "; }
details[open].talks summary::before { content: "[-] "; }
details.talks .entries { counter-reset: p; margin-top: 8px; }

/* ---------- Tools ---------- */
.tools { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 12px; list-style: none; margin: 0; padding: 0; }
.tools > li { border: var(--line); padding: 14px; display: flex; flex-direction: column; }
.tools > li:nth-child(even) { border-color: var(--cyan); }
.tools > li:hover { background: var(--acc); color: var(--bg); border-color: var(--acc); }
.tools > li:hover .status, .tools > li:hover .venue { color: var(--bg); }
.tools h4 { font-family: var(--disp); text-transform: uppercase; font-size: 16px; line-height: 1.15; margin-bottom: 6px; }
.tools .venue { font-size: 12px; margin: 0 0 8px; color: var(--acc); }
.tools .venue .status.pending { color: var(--cyan); }
.tools p { font-size: 13px; flex: 1; }

/* ---------- Contact ---------- */
.contact-list { list-style: none; margin: 0; padding: 0; }
.contact-list a { display: block; text-decoration: none; color: var(--ink); font-family: var(--disp); text-transform: uppercase; font-size: clamp(22px, 5.5vw, 64px); line-height: 1.05; overflow-wrap: anywhere; }
.contact-list a:hover { background: none; color: var(--acc); }
.contact-list a::after { content: " ↗"; color: var(--cyan); }
.sys { margin-top: 14px; font-size: 12px; color: var(--cyan); }

footer { padding: 10px var(--pad) 30px; font-size: 12px; color: var(--dim); display: flex; justify-content: space-between; flex-wrap: wrap; gap: 8px; }

/* ---------- Cursor ----------
   A chunky pixel arrow that follows the pointer (fine pointers only). Over
   links and buttons it turns magenta and grows; pressing shrinks it. Over
   the field of view it hides and the crosshair takes over. */
html.has-cursor, html.has-cursor * { cursor: none !important; }
.cursor {
  position: fixed; left: 0; top: 0; z-index: 200; pointer-events: none;
  width: 40px; height: 48px; opacity: 0; transition: opacity 0.15s;
  will-change: transform;
}
.cursor.on { opacity: 1; }
.cursor svg { display: block; width: 100%; height: 100%; overflow: visible; shape-rendering: crispEdges; transform-origin: 6px 6px; transition: transform 0.12s; }
.cursor svg path { fill: var(--ink); stroke: #000; stroke-width: 2; stroke-linejoin: miter; paint-order: stroke fill; }
.cursor.link svg { transform: scale(1.3) rotate(-12deg); }
.cursor.link svg path { fill: var(--acc); }
.cursor.down svg { transform: scale(0.8); }
.cursor.hide { opacity: 0; }
body.plain .cursor svg path { fill: #fff; }
body.plain .cursor.link svg path { fill: #000; stroke: #fff; }
@media (prefers-reduced-motion: reduce) { .cursor svg { transition: none; } }

/* ---------- PRINT / plain view ----------
   Toggled by the "print" link (body.plain) and applied automatically when
   printing: black on white, one column, no chrome. */
body.plain { background: #fff; color: #000; font: 14px/1.5 Georgia, "Times New Roman", serif; }
body.plain .bar { position: static; border-bottom: 1px solid #000; }
body.plain .bar nav a, body.plain .bar .prompt a { color: #000; }
body.plain .bar .cur::after { content: none; }
body.plain .ticker, body.plain .hero .grid > div:last-child, body.plain .hero .hint, body.plain .opsins, body.plain .wm, body.plain .box::after { display: none; }
body.plain .hero .grid { grid-template-columns: 1fr; }
body.plain .box { border: 0; border-top: 1px solid #000; margin: 0; padding: 18px var(--pad); }
body.plain .box::before { color: #666; background: #fff; top: -8px; }
body.plain .hero h1 { color: #000; -webkit-text-stroke: 0; font-size: clamp(28px, 4vw, 44px); }
body.plain .hero h1 span, body.plain .hero h1 i { color: #000; }
body.plain .box > h2.disp { font-size: 28px; }
body.plain .disp, body.plain .entries h4, body.plain .tools h4, body.plain .contact-list a { font-family: Georgia, serif; text-transform: none; letter-spacing: 0; }
body.plain .grp::before { content: none; }
body.plain .tag, body.plain .grp, body.plain .entries > li::before, body.plain .sys, body.plain .about .side .meta { color: #444; }
body.plain a { color: #000; }
body.plain a:hover { background: none; text-decoration: underline; }
body.plain .about .pic { border-color: #000; }
body.plain .cta { background: none; color: #000; border-color: #000; }
body.plain .entries > li { border-top: 1px solid #ccc; }
body.plain .entries > li:hover, body.plain .tools > li:hover { background: none; color: inherit; }
body.plain .entries > li:hover a, body.plain .entries > li:hover .venue, body.plain .entries > li:hover .venue .status, body.plain .entries > li:hover .authors, body.plain .entries > li:hover::before { background: none; color: inherit; }
body.plain .entries .venue, body.plain .entries .venue .status, body.plain .entries .venue .status.pending, body.plain .tools .venue, body.plain .tools .venue .status { color: #000; font-weight: 400; }
body.plain .tools > li { border: 1px solid #000; }
body.plain .contact-list a { font-size: 18px; }
body.plain .contact-list a::after { content: none; }
body.plain ::selection { background: #000; color: #fff; }
body.plain footer { color: #444; }
@media print {
  .bar nav, .ticker, .fov, .opsins, .hint, .cta, .wm { display: none !important; }
  .box { break-inside: avoid; }
  a[href^="http"]::after { content: " (" attr(href) ")"; font-size: 11px; }
}