:root {
  --bg: #060a1c;
  --card: rgba(16, 22, 52, 0.58);
  --card-solid: #121a3d;
  --line: rgba(160, 180, 255, 0.16);
  --line-strong: rgba(160, 180, 255, 0.3);
  --text: #f1f4ff;
  --dim: #aab4dd;
  --accent: #ffc83d;
  --accent2: #ff8a00;
  --accent-text: #1d1300;
  --cool: #5fd4ff;
  --good: #5cf0a0;
  --bad: #ff7b7b;
  --glow: #5fd4ff;
  --display: "Cinzel", Georgia, serif;
  color-scheme: dark;
}

* { box-sizing: border-box; }
html, body { margin: 0; }
body {
  background: radial-gradient(1400px 800px at 50% 30%, #1a1450 0%, #0a0f2a 45%, var(--bg) 100%) fixed, var(--bg);
  color: var(--text);
  font: 16px/1.55 "Nunito", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  min-height: 100vh;
  overflow-x: hidden;
}

/* ---------------------------------------------------------------- the animated sky */
.sky { position: fixed; inset: 0; width: 100vw; height: 100vh; z-index: -1; opacity: 0; transition: opacity 1.2s ease; }
.sky.on { opacity: 1; }

/* ---------------------------------------------------------------- header */
.top { display: flex; gap: 16px; align-items: center; max-width: 780px; margin: 0 auto; padding: 34px 16px 10px; }
.logo { border-radius: 14px; filter: drop-shadow(0 0 14px rgba(255, 200, 61, 0.45)); animation: bob 6s ease-in-out infinite; }
.title {
  margin: 0; font-family: var(--display); font-weight: 900; font-size: clamp(30px, 6vw, 44px); letter-spacing: 1.5px; line-height: 1.05;
  background: linear-gradient(100deg, #fff6d6 0%, var(--accent) 25%, #fff 45%, var(--cool) 65%, #fff6d6 85%);
  background-size: 250% 100%;
  -webkit-background-clip: text; background-clip: text; color: transparent;
  animation: shimmer 9s linear infinite;
  filter: drop-shadow(0 2px 18px rgba(255, 200, 61, 0.25));
}
.tag { margin: 4px 0 0; color: var(--dim); font-weight: 600; letter-spacing: .3px; }
@keyframes shimmer { to { background-position: -250% 0; } }
@keyframes bob { 50% { transform: translateY(-4px) rotate(-2deg); } }

/* ---------------------------------------------------------------- cards */
main { max-width: 780px; margin: 0 auto; padding: 10px 16px 28px; display: grid; gap: 18px; }
.card {
  position: relative;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 20px;
  padding: 20px 22px;
  backdrop-filter: blur(14px) saturate(1.3);
  -webkit-backdrop-filter: blur(14px) saturate(1.3);
  box-shadow: 0 18px 50px -18px rgba(0, 0, 0, 0.7), inset 0 1px 0 rgba(255, 255, 255, 0.06);
}
@supports not ((backdrop-filter: blur(1px)) or (-webkit-backdrop-filter: blur(1px))) { .card { background: var(--card-solid); } }
.card::before { /* a thin lit edge */
  content: ""; position: absolute; inset: 0; border-radius: inherit; padding: 1px; pointer-events: none;
  background: linear-gradient(140deg, rgba(255, 200, 61, 0.35), transparent 30%, transparent 70%, rgba(95, 212, 255, 0.35));
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor; mask-composite: exclude;
}
.card h2 { margin: 0 0 12px; font-family: var(--display); font-size: 21px; letter-spacing: .6px; display: flex; align-items: center; gap: 12px; }
.card h3 { font-size: 16px; margin: 16px 0 8px; }
.card p { margin: 0 0 10px; }
.step {
  display: inline-grid; place-items: center; width: 30px; height: 30px; border-radius: 50%; flex: none;
  background: radial-gradient(circle at 35% 30%, #fff3c4, var(--accent) 45%, var(--accent2)); color: var(--accent-text);
  font-family: "Nunito", sans-serif; font-weight: 800; font-size: 15px; box-shadow: 0 0 16px -2px rgba(255, 200, 61, 0.7);
}

/* ---------------------------------------------------------------- controls */
.row { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; }
button {
  font: inherit; font-weight: 800; letter-spacing: .3px; border: 0; border-radius: 12px; padding: 11px 18px; cursor: pointer;
  background: linear-gradient(180deg, #ffe08a, var(--accent) 40%, var(--accent2)); color: var(--accent-text);
  box-shadow: 0 6px 20px -6px rgba(255, 160, 0, 0.7), inset 0 1px 0 rgba(255, 255, 255, 0.6);
  transition: transform .15s ease, box-shadow .15s ease, filter .15s ease;
}
button:hover:not(:disabled) { transform: translateY(-2px); box-shadow: 0 10px 26px -6px rgba(255, 160, 0, 0.85), inset 0 1px 0 rgba(255, 255, 255, 0.6); }
button:active:not(:disabled) { transform: translateY(0); filter: brightness(.95); }
button.ghost { background: rgba(255, 255, 255, 0.04); color: var(--text); border: 1px solid var(--line-strong); box-shadow: none; }
button.ghost:hover:not(:disabled) { background: rgba(95, 212, 255, 0.1); box-shadow: 0 0 18px -6px var(--cool); }
button:disabled { opacity: .4; cursor: not-allowed; }
button:focus-visible, input:focus-visible, summary:focus-visible { outline: 2px solid var(--cool); outline-offset: 3px; }
input {
  font: inherit; padding: 11px 13px; border-radius: 12px; border: 1px solid var(--line-strong); background: rgba(4, 8, 24, 0.6); color: var(--text);
  min-width: 0;
}
#code { width: 10em; text-transform: uppercase; letter-spacing: 4px; font-weight: 800; font-family: ui-monospace, Consolas, monospace; text-align: center; }
#sim-id { width: 7em; }

.status { color: var(--dim); margin: 12px 0; min-height: 1.5em; font-weight: 600; }
.status.good { color: var(--good); }
.status.bad { color: var(--bad); }
.note { color: var(--dim); font-size: 14px; }

/* ---------------------------------------------------------------- the portal */
.stage { display: grid; grid-template-columns: 200px 1fr; gap: 20px; align-items: center; margin-bottom: 4px; }
@media (max-width: 560px) { .stage { grid-template-columns: 1fr; justify-items: center; } .figures { width: 100%; } }
.portal { position: relative; width: 200px; height: 170px; }
.disc {
  position: absolute; left: 10px; bottom: -30px; width: 180px; height: 180px;
  transform: perspective(520px) rotateX(70deg);
}
.ring { position: absolute; border-radius: 50%; transition: opacity .4s ease; }
.r1 {
  inset: 0;
  background: conic-gradient(from 0deg, transparent 0 8%, var(--glow) 14%, transparent 22% 33%, var(--glow) 40%, transparent 48% 58%, var(--glow) 66%, transparent 74% 84%, var(--glow) 92%, transparent 100%);
  -webkit-mask: radial-gradient(circle, transparent 0 60%, #000 61% 69%, transparent 70%);
  mask: radial-gradient(circle, transparent 0 60%, #000 61% 69%, transparent 70%);
  animation: spin 7s linear infinite;
  filter: drop-shadow(0 0 6px var(--glow));
}
.r2 {
  inset: 26px;
  background: conic-gradient(from 90deg, var(--accent) 0 12%, transparent 12% 25%, var(--accent) 25% 37%, transparent 37% 50%, var(--accent) 50% 62%, transparent 62% 75%, var(--accent) 75% 87%, transparent 87%);
  -webkit-mask: radial-gradient(circle, transparent 0 62%, #000 63% 70%, transparent 71%);
  mask: radial-gradient(circle, transparent 0 62%, #000 63% 70%, transparent 71%);
  animation: spin 5s linear infinite reverse;
  opacity: .8;
}
.r3 {
  inset: 50px;
  border: 2px dashed var(--glow);
  opacity: .7;
  animation: spin 11s linear infinite;
}
.core { position: absolute; inset: 40px; border-radius: 50%; background: radial-gradient(circle, var(--glow) 0%, transparent 68%); opacity: .35; transition: opacity .5s ease; }
.beam {
  position: absolute; left: 50%; bottom: 52px; width: 96px; height: 150px; transform: translateX(-50%);
  background: linear-gradient(to top, var(--glow), transparent 85%);
  -webkit-mask: radial-gradient(ellipse 50% 100% at 50% 100%, #000 40%, transparent 72%);
  mask: radial-gradient(ellipse 50% 100% at 50% 100%, #000 40%, transparent 72%);
  opacity: 0; filter: blur(5px); transition: opacity .6s ease;
  animation: beam 2.6s ease-in-out infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }
@keyframes beam { 50% { filter: blur(7px) brightness(1.3); } }
.portal[data-state="off"] { --glow: rgba(160, 180, 255, 0.35); }
.portal[data-state="off"] .ring, .portal[data-state="off"] .beam { animation-play-state: paused; }
.portal[data-state="off"] .r2 { opacity: .25; }
.portal[data-state="busy"] .disc { animation: pulse 1.1s ease-in-out infinite; }
.portal[data-state="figure"] .beam { opacity: .75; }
.portal[data-state="figure"] .core { opacity: .9; }
@keyframes pulse { 50% { opacity: .45; } }

.sparks { position: absolute; left: 50%; bottom: 40px; width: 0; height: 0; pointer-events: none; }
.spark {
  position: absolute; width: 6px; height: 6px; margin: -3px; border-radius: 50%;
  background: radial-gradient(circle, #fff, var(--glow) 55%, transparent 70%);
  animation: spark var(--d, 900ms) cubic-bezier(.2, .7, .3, 1) forwards;
}
@keyframes spark {
  0% { transform: translate(0, 0) scale(1.4); opacity: 1; }
  100% { transform: translate(var(--x), var(--y)) scale(.2); opacity: 0; }
}

/* ---------------------------------------------------------------- lists */
.figures, .links { list-style: none; margin: 0; padding: 0; display: grid; gap: 9px; }
.figures:empty::before { content: "Nothing on the portal."; color: var(--dim); font-style: italic; }
.figures li, .links li {
  display: flex; gap: 10px; align-items: center; justify-content: space-between;
  background: rgba(4, 8, 24, 0.55); border: 1px solid var(--line); border-radius: 14px; padding: 10px 14px;
}
.figures li { border-left: 3px solid var(--el, var(--line-strong)); animation: arrive .5s cubic-bezier(.2, .8, .3, 1.2); box-shadow: inset 20px 0 30px -24px var(--el, transparent); }
@keyframes arrive { from { transform: translateX(-14px) scale(.96); opacity: 0; } }
.fig-name { font-weight: 800; font-size: 17px; }
.fig-meta { color: var(--dim); font-size: 13px; }
.dot { width: 13px; height: 13px; border-radius: 50%; flex: none; background: var(--el, var(--dim)); box-shadow: 0 0 12px var(--el, transparent); }
.who { display: flex; align-items: center; gap: 11px; min-width: 0; }
.who > div { min-width: 0; overflow-wrap: anywhere; }
.links .state { font-size: 13px; color: var(--dim); }
.links .state.good { color: var(--good); }
.links .state.bad { color: var(--bad); }
.links button { padding: 7px 12px; font-size: 14px; }

.more { margin-top: 12px; color: var(--dim); font-size: 14px; }
.more summary { cursor: pointer; }
.more p { margin: 8px 0; }
.sim { margin-top: 14px; padding-top: 8px; border-top: 1px dashed var(--line-strong); }

.how ol { padding-left: 20px; margin: 0; }
.how li { margin: 5px 0; }
table { width: 100%; border-collapse: collapse; font-size: 14px; }
th, td { text-align: left; vertical-align: top; padding: 7px 8px; border-top: 1px solid var(--line); }
th { width: 38%; font-weight: 700; }
@media (max-width: 560px) { th, td { display: block; width: auto; border: 0; padding: 2px 0; } tr { display: block; padding: 7px 0; border-top: 1px solid var(--line); } }

.log summary { cursor: pointer; font-weight: 800; }
.log pre { max-height: 260px; overflow: auto; font-size: 12px; color: var(--dim); white-space: pre-wrap; margin: 10px 0 0; }

footer { max-width: 780px; margin: 0 auto; padding: 4px 16px 36px; color: var(--dim); font-size: 13px; text-align: center; opacity: .85; }

/* ---------------------------------------------------------------- the big entrance */
/* while a figure makes its entrance the page steps back, so the whole sky is the show */
.top, main, footer { transition: opacity .55s ease, transform .55s ease, filter .55s ease; }
body.in-moment .top, body.in-moment main, body.in-moment footer { opacity: .1; transform: scale(.985); filter: blur(3px); }
.moment {
  position: fixed; inset: 0; z-index: 10; display: grid; place-content: center; justify-items: center; gap: 6px;
  pointer-events: none; opacity: 0; text-align: center; padding: 16px;
}
.moment.play { animation: moment 3.2s ease forwards; }
.m-burst {
  position: absolute; left: 50%; top: 50%; width: 120vmax; height: 120vmax; transform: translate(-50%, -50%) scale(0);
  background: radial-gradient(circle, rgba(255, 255, 255, 0.55), var(--glow) 8%, transparent 32%);
  border-radius: 50%; opacity: 0;
}
.moment.play .m-burst { animation: burst 1.6s cubic-bezier(.1, .7, .2, 1) forwards; }
.m-element {
  position: relative; font-family: "Nunito", sans-serif; font-weight: 800; letter-spacing: 8px; text-transform: uppercase;
  font-size: clamp(16px, 2.8vw, 26px); color: #fff; text-shadow: 0 0 8px var(--glow), 0 0 22px var(--glow), 0 0 44px var(--glow);
}
.m-name {
  position: relative; font-family: var(--display); font-weight: 900; text-transform: uppercase; line-height: 1;
  font-size: clamp(38px, 9vw, 112px); letter-spacing: 3px; color: #fff;
  text-shadow: 0 0 12px var(--glow), 0 0 40px var(--glow), 0 0 90px var(--glow);
}
.moment.play .m-name { animation: name 3.2s cubic-bezier(.15, .8, .25, 1) forwards; }
@keyframes moment { 0% { opacity: 0; } 8% { opacity: 1; } 78% { opacity: 1; } 100% { opacity: 0; } }
@keyframes burst { 0% { transform: translate(-50%, -50%) scale(0); opacity: .9; } 100% { transform: translate(-50%, -50%) scale(1); opacity: 0; } }
@keyframes name { 0% { transform: scale(1.7); filter: blur(14px); letter-spacing: 30px; } 18% { transform: scale(1); filter: blur(0); letter-spacing: 3px; } 100% { transform: scale(.96); } }

@media (prefers-reduced-motion: reduce) {
  .title, .logo, .ring, .beam, .figures li { animation: none !important; }
  .moment.play .m-name, .moment.play .m-burst { animation: none; }
  .moment.play { animation: moment 2.4s linear forwards; }
  body.in-moment .top, body.in-moment main, body.in-moment footer { transform: none; filter: none; opacity: .25; }
}