/* wopr.v2core.com: W.O.P.R.'s own palette (src/gfx.h pal::) on a CRT. Lettering is SVG strokes
   (Hershey Simplex, from the app), body text a system monospace. */
:root {
  --bg: #020408;
  --panel: #030913;
  --cyan: #38c7ff;
  --ice: #c7f2ff;
  --pink: #ffa8f5;
  --orange: #ff8f2e;
  --green: #5cff7a;
  --red: #ff5238;
  --amber: #ffcc4d;
  --dim: #1a5c85;
  --line: rgba(56, 199, 255, 0.28);
  --mono: ui-monospace, "Cascadia Mono", "SF Mono", "Segoe UI Mono", Menlo, Consolas, "DejaVu Sans Mono", monospace;
  color-scheme: dark;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 72px; }
body {
  margin: 0;
  background: var(--bg);
  color: rgba(199, 242, 255, 0.86);
  font: 15px/1.7 var(--mono);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
/* the CRT: scanlines and a vignette over everything, never in the way of the pointer */
body::before, body::after { content: ""; position: fixed; inset: 0; pointer-events: none; z-index: 100; }
body::before { background: repeating-linear-gradient(to bottom, transparent 0 2px, rgba(0, 0, 0, 0.16) 2px 3px); }
body::after { background: radial-gradient(ellipse at 50% 45%, transparent 55%, rgba(0, 0, 0, 0.5) 100%); }
/* ...except screenshots and video: lines over a scaled picture beat into moiré */
.screen img, .video video { position: relative; z-index: 101; }

a { color: var(--cyan); text-decoration: none; }
a:hover { color: var(--ice); text-shadow: 0 0 8px rgba(56, 199, 255, 0.6); }
b { color: var(--ice); font-weight: 600; }
i { color: var(--ice); }
code, kbd { font: inherit; color: var(--ice); }
kbd { border: 1px solid var(--dim); border-radius: 3px; padding: 0 5px; font-size: 13px; }

.wrap { max-width: 1240px; margin: 0 auto; padding: 0 24px; }
.kicker, .meta, .caption, .note, figcaption, .aside, .needs {
  font-size: 12px; letter-spacing: 0.2em; text-transform: uppercase; color: var(--cyan);
}

/* Hershey lettering: strokes in the current colour with a phosphor glow */
svg.hl { display: block; max-width: 100%; height: auto; overflow: visible; }
svg.hl path {
  fill: none; stroke: currentColor; stroke-width: 1.5px; vector-effect: non-scaling-stroke;
  stroke-linecap: round; stroke-linejoin: round;
}
svg.hl.big path { stroke-width: 2.4px; }
.pink { color: var(--pink); } .cyan { color: var(--cyan); } .ice { color: var(--ice); }
svg.hl { filter: drop-shadow(0 0 2px currentColor) drop-shadow(0 0 10px rgba(255, 168, 245, 0.35)); }
svg.hl.cyan, svg.hl.ice { filter: drop-shadow(0 0 2px currentColor) drop-shadow(0 0 9px rgba(56, 199, 255, 0.35)); }
/* typed greeting: each letter appears in turn */
svg.hl[style] path { opacity: 0; animation: type 0.01s linear forwards; animation-delay: calc(var(--t0) + var(--i) * 70ms); }
@keyframes type { to { opacity: 1; } }

/* corner brackets, as on W.O.P.R.'s panels */
.btn, .screen, .dlbox, .prof {
  --c: var(--cyan);
  background:
    linear-gradient(var(--c), var(--c)) top left / 18px 2px,
    linear-gradient(var(--c), var(--c)) top left / 2px 18px,
    linear-gradient(var(--c), var(--c)) top right / 18px 2px,
    linear-gradient(var(--c), var(--c)) top right / 2px 18px,
    linear-gradient(var(--c), var(--c)) bottom left / 18px 2px,
    linear-gradient(var(--c), var(--c)) bottom left / 2px 18px,
    linear-gradient(var(--c), var(--c)) bottom right / 18px 2px,
    linear-gradient(var(--c), var(--c)) bottom right / 2px 18px;
  background-repeat: no-repeat;
}

/* ---- top bar ---- */
nav.top {
  position: sticky; top: 0; z-index: 110; display: flex; align-items: center; gap: 28px;
  height: 60px; padding: 0 24px; background: rgba(3, 9, 19, 0.92);
  border-bottom: 1px solid var(--line); backdrop-filter: blur(6px);
}
.brand { display: flex; align-items: center; gap: 12px; color: var(--pink); }
.brand img { filter: drop-shadow(0 0 6px rgba(56, 199, 255, 0.5)); }
.links { display: flex; gap: 26px; margin-left: auto; font-size: 12px; letter-spacing: 0.2em; }
.links a { color: var(--cyan); }
.links a.hot { color: var(--pink); }
.defcon { display: flex; align-items: center; gap: 4px; font-size: 11px; letter-spacing: 0.2em; }
.defcon .lbl { color: var(--ice); margin-right: 6px; }
.defcon i {
  --c: var(--cyan); font-style: normal; width: 22px; height: 24px; display: grid; place-items: center; font-size: 13px;
  color: var(--c); border: 1px solid var(--c); opacity: 0.55;
}
.defcon i:nth-of-type(2) { --c: var(--green); } .defcon i:nth-of-type(3) { --c: var(--amber); }
.defcon i:nth-of-type(4) { --c: var(--orange); } .defcon i:nth-of-type(5) { --c: var(--red); }
.defcon i.on { opacity: 1; background: var(--c); color: var(--bg); box-shadow: 0 0 10px var(--c); }
/* a download takes it to DEFCON 1 */
.defcon1 .defcon i.on { background: none; color: var(--c); opacity: 0.55; box-shadow: none; }
.defcon1 .defcon i:nth-of-type(5) { background: var(--red); color: var(--bg); opacity: 1; animation: blink 0.8s steps(2) infinite; }
@keyframes blink { 50% { opacity: 0.25; } }
.clock { color: var(--cyan); font-size: 15px; letter-spacing: 0.18em; min-width: 9.5em; text-align: right; }

/* ---- hero ---- */
.hero { position: relative; min-height: 640px; padding: 90px 0 70px; overflow: hidden; border-bottom: 1px solid var(--line); }
.hero-map { position: absolute; inset: 40px -4% 0 30%; opacity: 0.95;
  -webkit-mask-image: linear-gradient(90deg, transparent 0, rgba(0,0,0,0.35) 14%, #000 42%);
  mask-image: linear-gradient(90deg, transparent 0, rgba(0,0,0,0.35) 14%, #000 42%); }
.hero-in { position: relative; }
.hero h1 { margin: 18px 0 26px; }
.hero h1 svg { width: min(620px, 100%); height: auto; }
.greet { display: flex; flex-direction: column; gap: 14px; margin-bottom: 30px; }
.greet svg { height: auto; }
.greet svg:first-child { width: min(300px, 70%); }
.greet svg:nth-child(2) { width: min(390px, 100%); }
.cursor { display: block; width: 12px; height: 20px; margin-top: -32px; margin-left: min(400px, 92%);
  background: var(--cyan); box-shadow: 0 0 10px var(--cyan); opacity: 0; animation: cursor 1s steps(2) 3.1s infinite; }
@keyframes cursor { 0% { opacity: 1; } 100% { opacity: 0; } }
.lede { max-width: 560px; font-size: 16px; color: rgba(199, 242, 255, 0.9); text-shadow: 0 0 12px var(--bg); }
.cta { display: flex; flex-wrap: wrap; gap: 18px; margin: 34px 0 22px; }
.meta { color: rgba(56, 199, 255, 0.75); }

.btn {
  display: inline-flex; flex-wrap: wrap; max-width: 100%; align-items: baseline; gap: 12px; padding: 15px 26px; color: var(--cyan);
  border: 1px solid rgba(56, 199, 255, 0.35); letter-spacing: 0.2em; font-size: 14px;
  background-color: rgba(56, 199, 255, 0.04); transition: background-color 0.15s, box-shadow 0.15s;
}
.btn small { font-size: 11px; opacity: 0.8; }
.btn:hover { background-color: rgba(56, 199, 255, 0.14); box-shadow: 0 0 22px rgba(56, 199, 255, 0.25); color: var(--ice); }
.btn.primary { --c: var(--pink); color: var(--pink); border-color: rgba(255, 168, 245, 0.45); background-color: rgba(255, 168, 245, 0.1); }
.btn.primary:hover { background-color: rgba(255, 168, 245, 0.2); box-shadow: 0 0 26px rgba(255, 168, 245, 0.3); color: #fff; }
.btn.off { opacity: 0.4; }

/* ---- the map ---- */
svg.map { width: 100%; height: 100%; overflow: visible; }
svg.map path, svg.map circle, svg.map line { fill: none; vector-effect: non-scaling-stroke; }
.grat { stroke: var(--dim); stroke-width: 0.8px; opacity: 0.55; }
.border { stroke: var(--green); stroke-width: 0.8px; opacity: 0.45; }
.coast { stroke: var(--cyan); stroke-width: 1.2px; filter: drop-shadow(0 0 3px rgba(56, 199, 255, 0.8)); }
.norad .rings circle { stroke: var(--cyan); opacity: 0.18; }
.norad .sweep { animation: spin 5.5s linear infinite; }
.norad .sweep line { stroke: var(--cyan); stroke-width: 1.2px; }
.norad .star { fill: var(--ice); filter: drop-shadow(0 0 4px var(--ice)); }
@keyframes spin { to { transform: rotate(360deg); } }
.site circle { stroke: var(--orange); stroke-width: 1px; }
.site .dot { fill: var(--orange); stroke: none; }
.track .arc { stroke-width: 1px; opacity: 0.3; }
.track .dash { stroke-width: 1.6px; stroke-dasharray: 9 9; animation: flow 0.5s linear infinite; }
.track.orange path, .track.orange .ring { stroke: var(--orange); }
.track.pink path, .track.pink .ring { stroke: var(--pink); }
.track .ring { stroke-width: 1.3px; }
.track .pulse { stroke: var(--pink); stroke-width: 1px; transform-box: fill-box; transform-origin: center; animation: pulse 2.1s ease-out infinite; animation-delay: calc(var(--n) * -0.4s); }
.track .blip { fill: #fff; filter: drop-shadow(0 0 4px #fff); }
@keyframes flow { to { stroke-dashoffset: -18; } }
@keyframes pulse { from { transform: scale(1); opacity: 0.8; } to { transform: scale(1.9); opacity: 0; } }

/* ---- sections ---- */
main { position: relative; }
.sec { padding: 90px 0; border-bottom: 1px solid rgba(56, 199, 255, 0.12);
  background-image: linear-gradient(rgba(26, 92, 133, 0.12) 1px, transparent 1px),
    linear-gradient(90deg, rgba(26, 92, 133, 0.12) 1px, transparent 1px);
  background-size: 48px 48px; }
.sec.first { padding-top: 60px; background-image: none; }
.sec .title { margin: 6px 0 36px; }
.sec svg.title { width: auto; height: auto; max-width: 100%; }
.split { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: 48px; align-items: center; }
.split.rev .text { order: 2; }
.text p { margin: 0 0 18px; }
.aside { margin-top: 28px !important; padding-left: 14px; border-left: 2px solid var(--amber); color: var(--amber); line-height: 1.8; }
.duo { display: grid; grid-template-columns: 1fr 1fr; gap: 28px; margin-top: 40px; }
.duo.one { grid-template-columns: minmax(0, 760px); }
.intro { max-width: 720px; margin: 0 0 30px; }

figure { margin: 0; }
.screen { --c: var(--cyan); padding: 10px; border: 1px solid var(--line); background-color: rgba(3, 9, 19, 0.6); }
.screen img { display: block; width: 100%; height: auto; }
.hero-shot { --c: var(--pink); box-shadow: 0 0 60px rgba(56, 199, 255, 0.08); }
.caption, figcaption { margin-top: 16px; color: rgba(56, 199, 255, 0.75); }

.video { margin-top: 56px; }
.video video { display: block; width: 100%; height: auto; border: 1px solid var(--line); background: #000; }

/* section 1: the QE video first, then the story, then autoresearch */
.video.qe { margin: 0 0 54px; }
.video.qe video { box-shadow: 0 0 70px rgba(255, 168, 245, 0.12); border-color: rgba(255, 168, 245, 0.35); }
h3.sub { margin: 64px 0 14px; font-size: 13px; font-weight: normal; letter-spacing: 0.24em; color: var(--pink);
  text-shadow: 0 0 10px rgba(255, 168, 245, 0.45); }
.ar-wrap { overflow-x: auto; margin-top: 8px; }
table.ar { width: 100%; border-collapse: collapse; font-size: 14px; }
table.ar th { text-align: left; font-weight: normal; font-size: 11px; letter-spacing: 0.22em; color: var(--cyan);
  padding: 10px 14px; border-bottom: 1px solid var(--line); }
table.ar td { padding: 12px 14px; border-bottom: 1px solid rgba(56, 199, 255, 0.12); vertical-align: top; }
table.ar td:first-child { color: var(--pink); font-size: 18px; width: 4em; }
table.ar td:last-child { color: var(--green); }
table.ar tr:hover td { background: rgba(56, 199, 255, 0.04); }

.drivers { margin-top: 46px; padding: 26px 28px; border: 1px solid rgba(255, 168, 245, 0.3);
  background: rgba(3, 9, 19, 0.82); max-width: 980px; }
.drivers .btn { --c: var(--pink); color: var(--pink); border-color: rgba(255, 168, 245, 0.45); margin: 8px 0 6px; word-break: break-all; }
.drivers .note code.sha { word-break: break-all; color: var(--green); }

/* icon matrix */
.icons-wrap { overflow-x: auto; }
table.icons { border-collapse: collapse; }
table.icons th { font-weight: normal; font-size: 12px; letter-spacing: 0.18em; color: var(--cyan); padding: 6px 12px; text-align: left; white-space: nowrap; }
table.icons thead th, table.icons tr:first-child th { text-align: center; vertical-align: bottom; }
table.icons tr:first-child th span { display: block; color: var(--ice); }
table.icons tr:first-child th small { display: block; font-size: 10px; color: var(--dim); }
table.icons td { padding: 4px 10px; }
table.icons img { display: block; width: 64px; height: 64px; }

/* profiles */
.profiles { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 22px; }
.prof { padding: 22px 22px 16px; border: 1px solid var(--line); background-color: rgba(3, 9, 19, 0.7); }
.prof h3 { display: flex; align-items: center; gap: 12px; margin: 0 0 10px; font-size: 13px; font-weight: normal; letter-spacing: 0.2em; color: var(--ice); }
.prof p { margin: 0; font-size: 14px; }
.prof.dim { opacity: 0.55; }
.note { margin-top: 26px; color: rgba(56, 199, 255, 0.7); }

/* download */
.dlbox { --c: var(--pink); display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 6fr); gap: 46px; padding: 34px;
  border: 1px solid rgba(255, 168, 245, 0.3); background-color: rgba(3, 9, 19, 0.82); }
.dlbox .name { font-size: 22px; color: var(--pink); margin: 8px 0 2px; letter-spacing: 0.06em; text-shadow: 0 0 12px rgba(255, 168, 245, 0.5); word-break: break-all; }
.dlbox .size { font-size: 12px; letter-spacing: 0.2em; color: var(--cyan); margin: 0 0 18px; }
.sum { display: flex; flex-wrap: wrap; align-items: center; gap: 10px; margin: 0 0 26px; font-size: 13px; }
.sum span { font-size: 11px; letter-spacing: 0.2em; color: var(--cyan); }
.sum code { word-break: break-all; color: var(--green); }
.copy { font: inherit; font-size: 11px; letter-spacing: 0.2em; color: var(--cyan); background: none; border: 1px solid var(--dim); padding: 2px 8px; cursor: pointer; }
.copy:hover { color: var(--ice); border-color: var(--cyan); }
.steps ol { margin: 0 0 16px; padding-left: 22px; }
.steps li { margin-bottom: 10px; }
.steps li::marker { color: var(--pink); }
.needs { color: rgba(56, 199, 255, 0.75); line-height: 1.9; }
.source { margin-top: 46px; max-width: 900px; }
.source p { margin: 8px 0; }
.source code.flags { display: block; margin-top: 10px; padding: 12px 14px; border: 1px solid rgba(56, 199, 255, 0.18); font-size: 12px; color: var(--cyan); white-space: pre; overflow-x: auto; }

/* ---- ui-map/: a code for every part of the screen ---- */
.tag { display: inline-block; min-width: 2.7em; padding: 0 6px; border: 1px solid var(--amber); color: var(--amber);
  text-align: center; font-size: 13px; letter-spacing: 0.06em; text-shadow: 0 0 8px rgba(255, 204, 77, 0.5); }
a.tag:hover { color: #fff; background: rgba(255, 204, 77, 0.15); }
.intro ul { margin: 0 0 18px; padding-left: 20px; }
.intro li { margin-bottom: 10px; }
.intro li::marker { color: var(--pink); }
.sheet-index { display: flex; flex-wrap: wrap; gap: 12px 26px; margin: 34px 0 22px; font-size: 12px; letter-spacing: 0.2em; }
.sheet-index a { display: inline-flex; align-items: center; gap: 10px; }
.sheets { display: grid; gap: 30px; margin: 34px 0 40px; }
.codes-wrap { overflow-x: auto; }
table.codes { width: 100%; border-collapse: collapse; font-size: 14px; }
table.codes th { text-align: left; font-weight: normal; font-size: 11px; letter-spacing: 0.22em; color: var(--cyan);
  padding: 10px 14px; border-bottom: 1px solid var(--line); }
table.codes td { padding: 10px 14px; border-bottom: 1px solid rgba(56, 199, 255, 0.12); vertical-align: top; }
table.codes td:nth-child(2) { color: var(--ice); letter-spacing: 0.12em; white-space: nowrap; }
table.codes td:nth-child(3) code { color: var(--cyan); font-size: 13px; white-space: nowrap; }
table.codes tr:hover td { background: rgba(56, 199, 255, 0.04); }
table.codes tr:target td { background: rgba(255, 204, 77, 0.1); }

footer.foot { padding: 60px 0 80px; }
footer.foot svg { height: 12px; width: auto; margin-bottom: 12px; }
footer .fine { max-width: 820px; font-size: 12px; color: rgba(199, 242, 255, 0.5); }

/* ---- small screens ---- */
@media (max-width: 900px) {
  .links a:not(.hot), .defcon { display: none; }
  .hero { padding-top: 60px; min-height: 0; }
  .hero-map { inset: auto -30% 0 -10%; height: 340px; opacity: 0.5; }
  .split, .dlbox, .duo { grid-template-columns: minmax(0, 1fr); }
  .split.rev .text { order: 0; }
  .sec { padding: 64px 0; }
  .cursor { display: none; }
  table.codes td:nth-child(3), table.codes th:nth-child(3) { display: none; }
}
@media (max-width: 520px) {
  nav.top { gap: 14px; padding: 0 16px; }
  .clock { display: none; }
  .wrap { padding: 0 16px; }
  .btn { padding: 13px 18px; }
  .dlbox { padding: 22px; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; }
  svg.hl[style] path { opacity: 1; }
  html { scroll-behavior: auto; }
}