/* The site's theme (docs/.vitepress/theme/oni.css): Oni's menu, modernised. A near-black navy field with
   blue circuit traces, chrome-lavender lettering, the menu buttons' slanted blue panels with their green
   highlight, the orange of the selection. */
:root {
  --night: #000010;
  --deep: #050a1c;
  --panel: #114488;
  --panel-2: #004499;
  --blue: #4080c0;
  --light: #6699ee;
  --lavender: #b9c0f0;
  --text: #e6e9ff;
  --text-2: #a9b2dc;
  --orange: #e08010;
  --teal: #44aaaa;
  --green: #338844;
  --bad: #ff7a6a;
  --warn: #f0b050;
  --line: rgba(102, 153, 238, 0.28);
  --font: "Inter", "Helvetica Neue", Helvetica, Arial, sans-serif;
  --display: "Chakra Petch", "Eurostile", "Helvetica Neue", sans-serif;
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  --cut: polygon(12px 0, 100% 0, 100% calc(100% - 12px), calc(100% - 12px) 100%, 0 100%, 0 12px);
}
* { box-sizing: border-box; }
html, body { margin: 0; color: var(--text); font: 15px/1.6 var(--font); background-color: var(--night); }
body {
  background-image:
    radial-gradient(ellipse 60% 40% at 78% 0%, rgba(64, 128, 192, 0.18), transparent 70%),
    radial-gradient(ellipse 40% 30% at 10% 100%, rgba(224, 128, 16, 0.07), transparent 70%),
    url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='240' height='240' fill='none' stroke='%234080c0' stroke-opacity='0.11' stroke-width='1'><path d='M0 40h60l20 20h60l20-20h80M0 120h30l20-20h50M240 160h-40l-20 20h-60l-20 20H0M60 240v-40l20-20M160 0v30l20 20h30l30 30'/><circle cx='80' cy='60' r='2.5'/><circle cx='100' cy='100' r='2.5'/><circle cx='120' cy='180' r='2.5'/><circle cx='210' cy='50' r='2.5'/></svg>");
  background-attachment: fixed;
}
a { color: var(--light); text-underline-offset: 3px; }
a:hover { color: var(--orange); }
code { font-family: var(--mono); font-size: .88em; background: rgba(80, 96, 160, 0.2); color: #c9d4ff; padding: .1em .35em; }
kbd { display: inline-block; min-width: 1.6em; padding: 0 6px; border: 1px solid var(--line); border-bottom: 2px solid var(--blue);
  background: rgba(17, 68, 136, 0.3); font-family: var(--mono); font-size: .85em; line-height: 1.6; text-align: center; }
h1, h2 { font-family: var(--display); text-transform: uppercase; letter-spacing: 0.06em; }
h1 { font-size: 2.2rem; line-height: 1.15; margin: 1.8rem 0 .6rem; font-weight: 700;
  background: linear-gradient(180deg, #ffffff 0%, #b9c0f0 45%, #5060a0 100%); -webkit-background-clip: text; background-clip: text; color: transparent;
  filter: drop-shadow(0 0 2px rgba(64, 128, 192, 0.9)) drop-shadow(0 0 18px rgba(224, 128, 16, 0.35)); }
h2 { font-size: 1.05rem; margin: 0 0 .6rem; font-weight: 600; color: var(--text); position: relative; padding-top: 10px; }
h2::before { content: ""; position: absolute; top: 0; left: 0; width: 40px; height: 4px; background: var(--orange);
  clip-path: polygon(0 0, 100% 0, calc(100% - 4px) 100%, 0 100%); }
.small { font-size: .85rem; color: var(--text-2); }

.bar { position: sticky; top: 0; z-index: 5; display: flex; align-items: center; justify-content: space-between; gap: 1rem;
  padding: 0 24px; height: 60px; background: rgba(0, 0, 16, 0.85); backdrop-filter: blur(10px);
  border-bottom: 1px solid transparent; border-image: linear-gradient(90deg, transparent, var(--blue), transparent) 1; }
.brand { display: flex; align-items: center; gap: .55rem; color: var(--text); font-family: var(--display); font-weight: 700;
  font-size: 18px; text-decoration: none; text-transform: uppercase; letter-spacing: 0.14em; }
.bar nav { display: flex; font-size: 14px; }
.bar nav a { color: var(--text-2); text-decoration: none; padding: 0 12px; }
.bar nav a:hover { color: var(--text); }
.bar nav a[aria-current] { color: var(--text); box-shadow: inset 0 -2px 0 var(--orange); }

main { max-width: 1080px; margin: 0 auto; padding: 0 24px 2rem; }
.lead { font-size: 1.05rem; max-width: 760px; color: var(--text); }
.cols { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; margin: 1.4rem 0; }
@media (max-width: 820px) { .cols { grid-template-columns: 1fr; } }
.card { padding: 18px 22px; margin-bottom: 20px; border: 1px solid rgba(102, 153, 238, 0.22);
  background: linear-gradient(160deg, rgba(17, 68, 136, 0.22), rgba(0, 0, 16, 0.6)); clip-path: polygon(16px 0, 100% 0, 100% calc(100% - 16px), calc(100% - 16px) 100%, 0 100%, 0 16px); }
.card ul { padding-left: 1.2rem; margin: .4rem 0; }
.row { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; margin: .6rem 0; }

button { font: 600 13px/1 var(--display); text-transform: uppercase; letter-spacing: 0.1em; color: var(--text); cursor: pointer;
  padding: 11px 18px; border: 1px solid rgba(102, 153, 238, 0.45); background: rgba(17, 68, 136, 0.16); clip-path: var(--cut);
  transition: background .2s, box-shadow .2s, border-color .2s; }
button:hover { border-color: var(--teal); box-shadow: inset 0 -3px 0 var(--green); }
button.primary { border: none; color: #fff; background: linear-gradient(180deg, var(--panel-2), var(--panel));
  box-shadow: inset 0 1px 0 rgba(102, 153, 238, 0.8), inset 0 -3px 0 rgba(0, 0, 16, 0.4); }
button.primary:hover { background: linear-gradient(180deg, #1a5aa8, var(--panel-2)); box-shadow: inset 0 1px 0 #8fb4ff, inset 0 -3px 0 var(--green); }
button:disabled { opacity: .45; cursor: default; }
button.link { padding: 0; border: none; background: none; clip-path: none; color: var(--light); text-transform: none; letter-spacing: 0;
  font: inherit; text-decoration: underline; box-shadow: none; }
select { font: inherit; color: var(--text); background: var(--deep); border: 1px solid var(--line); padding: 6px 8px; }
.field { display: flex; align-items: center; gap: 8px; font-size: .9rem; color: var(--text-2); }

.checks { list-style: none; padding: 0; margin: .6rem 0; }
.checks li { padding-left: 1.5rem; position: relative; }
.checks li::before { position: absolute; left: 0; font-weight: 700; }
.checks li.ok::before { content: "\2713"; color: var(--teal); }
.checks li.bad { color: var(--bad); }
.checks li.bad::before { content: "\2717"; }
progress { width: 100%; height: 8px; accent-color: var(--orange); }

.stage { position: relative; width: 100%; aspect-ratio: 16 / 9; background: #000; border: 1px solid var(--line); margin-top: 1.4rem; }
.stage canvas { display: block; width: 100%; height: 100%; outline: none; }
.stage:fullscreen { border: none; aspect-ratio: auto; }
.toolbar { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; margin: 10px 0 1rem; }

.message { max-width: 1080px; margin: 1rem auto; padding: 10px 16px; border-left: 3px solid var(--blue); background: rgba(17, 68, 136, 0.2); }
.message.warn { border-color: var(--warn); }
.message.error { border-color: var(--bad); color: #ffd6d0; }

.foot { max-width: 1080px; margin: 2rem auto; padding: 1rem 24px; color: var(--text-2); font-size: .85rem;
  border-top: 1px solid var(--line); }
.powered img { vertical-align: middle; }