/* ============================================================
   WikiRace — stylesheet
   ============================================================ */

:root{
  --bg:#080b14;
  --bg-soft:#0d1220;
  --surface:#121a2c;
  --surface-2:#18203698;
  --line:#243049;
  --line-soft:#1b2438;

  --text:#e9edf7;
  --text-dim:#98a3bd;
  --text-faint:#63708c;

  --brand:#6366f1;
  --brand-2:#a855f7;
  --brand-3:#ec4899;
  --cyan:#22d3ee;
  --emerald:#10b981;
  --amber:#f59e0b;

  --link:#7dd3fc;
  --link-hover:#bae6fd;

  --grad: linear-gradient(115deg,var(--brand) 0%,var(--brand-2) 48%,var(--brand-3) 100%);
  --grad-soft: linear-gradient(115deg,#6366f130,#a855f728 48%,#ec489922);

  --radius:16px;
  --radius-sm:10px;
  --shadow:0 18px 50px -12px #000000b8;
  --ring:0 0 0 1px var(--line);

  --font:'Inter',system-ui,-apple-system,'Segoe UI',Roboto,sans-serif;
  --font-display:'Space Grotesk','Inter',system-ui,sans-serif;

  --header-h:64px;
}

*{box-sizing:border-box}
/* Class rules below declare display:flex, which would otherwise outrank
   the UA stylesheet's [hidden] rule and leave hidden elements visible. */
[hidden]{display:none!important}
html,body{margin:0;padding:0}
html{scroll-behavior:smooth}

body{
  min-height:100vh;
  background:var(--bg);
  color:var(--text);
  font-family:var(--font);
  font-size:15px;
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  display:flex;
  flex-direction:column;
  overflow-x:hidden;
}

/* ---------- ambient background ---------- */
.orbs{position:fixed;inset:0;z-index:-1;overflow:hidden;pointer-events:none}
.orb{position:absolute;border-radius:50%;filter:blur(90px);opacity:.30}
.orb-a{width:46vw;height:46vw;min-width:340px;min-height:340px;background:#6366f1;top:-14vw;left:-10vw;animation:drift 26s ease-in-out infinite alternate}
.orb-b{width:38vw;height:38vw;min-width:280px;min-height:280px;background:#ec4899;bottom:-14vw;right:-8vw;animation:drift 32s ease-in-out infinite alternate-reverse}
.orb-c{width:30vw;height:30vw;min-width:220px;min-height:220px;background:#22d3ee;top:38%;left:52%;opacity:.16;animation:drift 40s ease-in-out infinite alternate}
@keyframes drift{from{transform:translate3d(0,0,0) scale(1)}to{transform:translate3d(5vw,7vh,0) scale(1.16)}}
@media (prefers-reduced-motion:reduce){.orb{animation:none}}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:40;
  height:var(--header-h);
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:0 clamp(16px,4vw,36px);
  background:#080b14cc;
  backdrop-filter:blur(14px) saturate(150%);
  -webkit-backdrop-filter:blur(14px) saturate(150%);
  border-bottom:1px solid var(--line-soft);
}
.brand{display:flex;align-items:center;gap:11px;text-decoration:none;color:var(--text)}
.brand-mark{
  width:34px;height:34px;flex:0 0 34px;display:grid;place-items:center;
  border-radius:10px;background:var(--grad);color:#fff;
  box-shadow:0 6px 18px -4px #6366f1aa;
}
.brand-mark svg{width:19px;height:19px}
.brand-text{font-family:var(--font-display);font-weight:700;font-size:19px;letter-spacing:-.02em}
.brand-accent{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.header-actions{display:flex;gap:8px;align-items:center}

/* ---------- buttons ---------- */
.btn{
  font-family:inherit;font-size:14px;font-weight:600;
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:9px 16px;border-radius:var(--radius-sm);
  border:1px solid transparent;cursor:pointer;
  transition:transform .16s cubic-bezier(.2,.8,.3,1),background .16s,border-color .16s,box-shadow .16s,opacity .16s;
  white-space:nowrap;
}
.btn:focus-visible{outline:2px solid var(--cyan);outline-offset:2px}
.btn svg{width:15px;height:15px;flex:0 0 auto}
.btn-ghost{background:#ffffff08;border-color:var(--line);color:var(--text-dim)}
.btn-ghost:hover{background:#ffffff12;color:var(--text);border-color:#33405e}
.btn-primary{background:var(--grad);color:#fff;box-shadow:0 10px 26px -8px #a855f7bb}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 16px 34px -8px #a855f7cc}
.btn-primary:active{transform:translateY(0)}
.btn-lg{font-size:16px;padding:14px 30px;border-radius:13px}
.btn-sm{font-size:13px;padding:7px 12px}
.btn-block{width:100%;margin-top:12px}
.btn:disabled{opacity:.4;cursor:not-allowed;transform:none;box-shadow:none}
.btn-arrow{transition:transform .18s}
.btn-primary:hover .btn-arrow{transform:translateX(4px)}

/* ---------- layout ---------- */
main{flex:1;width:100%;display:flex;flex-direction:column}
.screen{width:100%}

/* ---------- setup / hero ---------- */
.screen-setup{
  flex:1;display:flex;align-items:center;justify-content:center;
  padding:clamp(32px,7vw,80px) clamp(16px,5vw,40px);
}
.hero{max-width:760px;width:100%;text-align:center}
.eyebrow{
  display:inline-block;margin:0 0 18px;padding:6px 14px;
  font-size:12px;font-weight:600;letter-spacing:.14em;text-transform:uppercase;
  color:#c7b3ff;background:#a855f71a;border:1px solid #a855f733;border-radius:999px;
}
.hero-title{
  font-family:var(--font-display);
  font-size:clamp(2.5rem,7.5vw,4.6rem);
  line-height:1.02;letter-spacing:-.035em;font-weight:700;
  margin:0 0 22px;
}
.gradient-text{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-sub{
  font-size:clamp(15px,2.2vw,17.5px);color:var(--text-dim);
  max-width:600px;margin:0 auto 40px;line-height:1.68;
}
.hero-sub strong{color:var(--text);font-weight:600}

.difficulty{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-bottom:34px;text-align:left}
.diff-card{
  font-family:inherit;cursor:pointer;
  background:var(--surface-2);border:1px solid var(--line);border-radius:var(--radius);
  padding:18px 16px;display:flex;flex-direction:column;gap:6px;
  transition:border-color .18s,background .18s,transform .18s;
}
.diff-card:hover{border-color:#3a4869;transform:translateY(-2px);background:#1a2338}
.diff-card.is-active{border-color:transparent;background:var(--grad-soft);box-shadow:inset 0 0 0 1.5px #a855f766,0 8px 26px -12px #a855f788}
.diff-card:focus-visible{outline:2px solid var(--cyan);outline-offset:2px}
.diff-dot{width:9px;height:9px;border-radius:50%;background:var(--dot);box-shadow:0 0 12px 1px var(--dot)}
.diff-name{font-family:var(--font-display);font-weight:600;font-size:16px;color:var(--text)}
.diff-desc{font-size:12.5px;color:var(--text-faint);line-height:1.5}
.diff-card.is-active .diff-desc{color:var(--text-dim)}

.setup-status{min-height:22px;margin:18px 0 0;font-size:13.5px;color:var(--text-faint)}
.setup-status.is-error{color:#fca5a5}

/* ---------- HUD ---------- */
.screen-game{padding:20px clamp(12px,3vw,28px) 28px;display:flex;flex-direction:column;gap:16px;flex:1;min-height:0}
.hud{
  display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap;
  padding:14px 20px;border-radius:var(--radius);
  background:var(--surface-2);border:1px solid var(--line);
  backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);
}
.hud-route{display:flex;align-items:center;gap:16px;min-width:0;flex:1}
.route-node{min-width:0;display:flex;flex-direction:column;gap:1px}
.route-label{font-size:10.5px;font-weight:600;letter-spacing:.13em;text-transform:uppercase;color:var(--text-faint)}
.route-title{
  font-family:var(--font-display);font-weight:600;font-size:15.5px;color:var(--text);
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:30ch;
}
.route-target .route-title{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.route-arrow{width:40px;height:12px;flex:0 0 40px;color:var(--text-faint)}
.hud-stats{display:flex;gap:10px}
.stat{
  min-width:78px;text-align:center;padding:8px 14px;
  background:#0a0e1a99;border:1px solid var(--line-soft);border-radius:var(--radius-sm);
}
.stat-value{display:block;font-family:var(--font-display);font-size:21px;font-weight:700;line-height:1.15;font-variant-numeric:tabular-nums}
.stat-label{display:block;font-size:10.5px;letter-spacing:.1em;text-transform:uppercase;color:var(--text-faint);margin-top:1px}
.stat.is-bump .stat-value{animation:bump .34s cubic-bezier(.2,1.6,.4,1)}
@keyframes bump{0%{transform:scale(1)}45%{transform:scale(1.32);color:#c084fc}100%{transform:scale(1)}}

/* ---------- game grid ---------- */
.game-grid{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:16px;flex:1;min-height:0}

.article-pane{
  position:relative;display:flex;flex-direction:column;min-height:0;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:var(--shadow);overflow:hidden;
}
.article-toolbar{
  display:flex;align-items:center;gap:14px;padding:13px 20px;
  border-bottom:1px solid var(--line-soft);background:#0e1524cc;flex:0 0 auto;
}
.article-title{
  font-family:var(--font-display);font-size:19px;font-weight:600;margin:0;letter-spacing:-.015em;
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis;
}
.article-scroll{overflow-y:auto;overflow-x:hidden;padding:26px clamp(18px,3vw,40px) 60px;flex:1;min-height:0;scroll-behavior:auto}
.article-scroll::-webkit-scrollbar{width:11px}
.article-scroll::-webkit-scrollbar-track{background:transparent}
.article-scroll::-webkit-scrollbar-thumb{background:#2a3550;border-radius:9px;border:3px solid var(--surface)}
.article-scroll::-webkit-scrollbar-thumb:hover{background:#3a4869}

.article-loading{
  position:absolute;inset:0;display:flex;align-items:center;justify-content:center;gap:12px;
  background:#121a2ce8;backdrop-filter:blur(3px);font-size:14px;color:var(--text-dim);z-index:5;
}
.spinner{
  width:22px;height:22px;border-radius:50%;
  border:2.5px solid #ffffff1f;border-top-color:var(--brand-2);
  animation:spin .7s linear infinite;
}
@keyframes spin{to{transform:rotate(360deg)}}

/* ---------- side pane ---------- */
.side-pane{display:flex;flex-direction:column;gap:14px;min-height:0}
.card{background:var(--surface-2);border:1px solid var(--line);border-radius:var(--radius);padding:16px 18px}
.card-kicker{margin:0 0 10px;font-size:10.5px;font-weight:600;letter-spacing:.13em;text-transform:uppercase;color:var(--text-faint)}
.card-target{background:var(--grad-soft);border-color:#a855f740}
.card-target-title{margin:0;font-family:var(--font-display);font-size:20px;font-weight:700;line-height:1.28;letter-spacing:-.02em;overflow-wrap:anywhere}
.card-path{flex:1;min-height:0;display:flex;flex-direction:column;overflow:hidden}
.path-list{list-style:none;margin:0;padding:0;overflow-y:auto;font-size:13.5px;flex:1;min-height:0}
.path-list::-webkit-scrollbar{width:8px}
.path-list::-webkit-scrollbar-thumb{background:#2a3550;border-radius:8px}
.path-list li{
  position:relative;padding:5px 0 5px 22px;color:var(--text-dim);
  overflow-wrap:anywhere;border-left:1.5px solid var(--line);margin-left:5px;
}
.path-list li::before{
  content:"";position:absolute;left:-5.5px;top:12px;width:9px;height:9px;border-radius:50%;
  background:var(--bg-soft);border:1.5px solid #3a4869;
}
.path-list li.is-current{color:var(--text);font-weight:600}
.path-list li.is-current::before{background:var(--brand-2);border-color:var(--brand-2);box-shadow:0 0 10px 1px #a855f7cc}
.path-list li:first-child::before{background:var(--emerald);border-color:var(--emerald)}

/* ---------- wikipedia article content ---------- */
.article-body{max-width:74ch;margin:0 auto;font-size:15.5px;line-height:1.75;color:#dbe2f1}
.article-body p{margin:0 0 1.15em}
.article-body h1,.article-body h2,.article-body h3,.article-body h4{
  font-family:var(--font-display);font-weight:600;letter-spacing:-.015em;color:#fff;
  line-height:1.28;margin:1.9em 0 .6em;
}
.article-body h1,.article-body h2{font-size:1.45em;padding-bottom:.32em;border-bottom:1px solid var(--line)}
.article-body h3{font-size:1.18em}
.article-body h4{font-size:1.04em;color:var(--text-dim)}
.article-body ul,.article-body ol{margin:0 0 1.15em;padding-left:1.5em}
.article-body li{margin-bottom:.35em}
.article-body b,.article-body strong{color:#fff;font-weight:600}
.article-body hr{border:0;border-top:1px solid var(--line);margin:1.8em 0}
.article-body blockquote{margin:1.2em 0;padding:.2em 0 .2em 1.1em;border-left:3px solid var(--brand-2);color:var(--text-dim);font-style:italic}
.article-body code,.article-body pre{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:.88em;background:#0a0e1a;border:1px solid var(--line-soft);border-radius:6px}
.article-body code{padding:.1em .38em}
.article-body pre{padding:12px 14px;overflow-x:auto}

/* live article links */
.article-body a.wr-link{
  color:var(--link);text-decoration:none;
  border-bottom:1px solid #7dd3fc3d;
  transition:color .13s,border-color .13s,background .13s;
  border-radius:2px;
}
.article-body a.wr-link:hover{color:var(--link-hover);border-bottom-color:var(--link-hover);background:#7dd3fc1f}
.article-body a.wr-link:focus-visible{outline:2px solid var(--cyan);outline-offset:2px}
.article-body a.wr-link.is-target{
  color:#fff;background:var(--grad);padding:.05em .4em;border-radius:5px;border-bottom:none;
  font-weight:600;box-shadow:0 0 16px -2px #a855f7aa;
}
/* dead links: files, categories, externals, anchors */
.article-body a.wr-dead{color:var(--text-faint);text-decoration:none;cursor:not-allowed;border-bottom:1px dotted #63708c55}

/* images & figures */
.article-body img{max-width:100%;height:auto;border-radius:8px}
.article-body figure,.article-body .thumb{margin:1.4em 0;max-width:100%}
.article-body .thumbinner{max-width:100%!important;background:#0e1524;border:1px solid var(--line-soft);border-radius:12px;padding:10px}
.article-body .thumbcaption,.article-body figcaption{font-size:12.8px;color:var(--text-faint);line-height:1.5;padding-top:7px}
.article-body .magnify{display:none}

/* infobox & tables */
.article-body table{border-collapse:collapse;max-width:100%;font-size:13.5px;margin:1.3em 0}
.article-body table.infobox{
  float:right;width:300px;max-width:44%;margin:.2em 0 1.2em 1.6em;
  background:#0e1524;border:1px solid var(--line);border-radius:12px;overflow:hidden;
}
.article-body table.infobox th,.article-body table.infobox td{padding:7px 11px;border-bottom:1px solid var(--line-soft);text-align:left;vertical-align:top}
.article-body table.infobox .infobox-above,.article-body table.infobox caption{
  background:var(--grad-soft);font-family:var(--font-display);font-size:15px;font-weight:600;padding:11px;text-align:center;color:#fff;
}
.article-body table.wikitable{border:1px solid var(--line);border-radius:10px;overflow:hidden;display:block;overflow-x:auto;max-width:100%}
.article-body table.wikitable th{background:#0e1524;color:#fff;font-weight:600}
.article-body table.wikitable th,.article-body table.wikitable td{border:1px solid var(--line-soft);padding:7px 11px}

/* references / chrome we hide */
.article-body sup.reference{font-size:.7em}
.article-body sup.reference a{color:var(--text-faint)!important;border:none!important}
.article-body .reflist,.article-body .refbegin{font-size:12.5px;color:var(--text-faint);columns:2;column-gap:28px}
.article-body .reflist a,.article-body .refbegin a{overflow-wrap:anywhere}
.article-body .hatnote{font-size:13.5px;color:var(--text-faint);font-style:italic;padding:.2em 0 .9em}
.article-body .mw-editsection,.article-body .navbox,.article-body .vertical-navbox,
.article-body .sistersitebox,.article-body .metadata,.article-body .ambox,
.article-body .mw-jump-link,.article-body #toc,.article-body .toc,
.article-body .mw-empty-elt,.article-body .noprint,.article-body .mbox-image,
.article-body .side-box,.article-body .navbox-styles,.article-body .shortdescription,
.article-body .mw-references-columns > .mw-ref-follow{display:none!important}

/* ---------- overlays ---------- */
.overlay{
  position:fixed;inset:0;z-index:60;display:flex;align-items:center;justify-content:center;
  padding:20px;background:#04060ce0;backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);
  animation:fade .28s ease;
}
@keyframes fade{from{opacity:0}to{opacity:1}}
.overlay-card{
  position:relative;width:100%;max-width:560px;max-height:90vh;overflow-y:auto;
  background:var(--surface);border:1px solid var(--line);border-radius:22px;
  padding:clamp(26px,4vw,38px);box-shadow:var(--shadow);
  animation:rise .34s cubic-bezier(.2,.9,.3,1);
}
@keyframes rise{from{opacity:0;transform:translateY(24px) scale(.97)}to{opacity:1;transform:none}}
.overlay-heading{font-family:var(--font-display);font-size:26px;margin:0 0 18px;letter-spacing:-.02em}
.overlay-actions{display:flex;gap:10px;margin-top:24px;flex-wrap:wrap}
.overlay-actions .btn{flex:1;min-width:140px}

.win-card{border-color:#a855f755;box-shadow:0 0 70px -18px #a855f766,var(--shadow);text-align:center}
.win-kicker{margin:0 0 6px;font-size:11.5px;font-weight:600;letter-spacing:.16em;text-transform:uppercase;color:var(--emerald)}
.win-heading{font-family:var(--font-display);font-size:clamp(28px,5vw,38px);margin:0 0 10px;letter-spacing:-.03em}
.win-route{margin:0 0 26px;color:var(--text-dim);font-size:14.5px;overflow-wrap:anywhere}
.win-route b{color:var(--text)}
.win-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-bottom:24px}
.win-stat{background:#0a0e1a;border:1px solid var(--line-soft);border-radius:var(--radius-sm);padding:14px 8px}
.win-stat-value{display:block;font-family:var(--font-display);font-size:26px;font-weight:700;line-height:1.1;font-variant-numeric:tabular-nums;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.win-stat-label{display:block;font-size:10.5px;letter-spacing:.1em;text-transform:uppercase;color:var(--text-faint);margin-top:4px}
.win-path-wrap{text-align:left;background:#0a0e1a;border:1px solid var(--line-soft);border-radius:var(--radius-sm);padding:14px 16px;max-height:190px;overflow-y:auto}
.win-path{list-style:none;margin:0;padding:0;font-size:13.5px;color:var(--text-dim)}
.win-path li{padding:3px 0;overflow-wrap:anywhere}
.win-path li::before{content:"→ ";color:var(--brand-2)}
.win-path li:first-child::before{content:"◆ ";color:var(--emerald)}
.win-path li:last-child{color:var(--text);font-weight:600}

.howto-list{margin:0;padding-left:1.3em;color:var(--text-dim);font-size:14.5px}
.howto-list li{margin-bottom:12px}
.howto-list strong{color:var(--text)}
.howto-note{font-size:13px;color:var(--text-faint);margin:18px 0 0;padding-top:16px;border-top:1px solid var(--line-soft)}

/* confetti */
.confetti{position:absolute;inset:0;overflow:hidden;pointer-events:none}
.confetti i{position:absolute;top:-12vh;width:9px;height:15px;opacity:.9;animation:fall linear forwards}
@keyframes fall{to{transform:translateY(115vh) rotate(760deg);opacity:0}}
@media (prefers-reduced-motion:reduce){.confetti{display:none}}

/* toast */
.toast{
  position:fixed;left:50%;bottom:28px;transform:translateX(-50%);z-index:80;
  background:#1a2338;border:1px solid var(--line);color:var(--text);
  padding:11px 20px;border-radius:999px;font-size:13.5px;font-weight:500;
  box-shadow:var(--shadow);animation:toastIn .26s cubic-bezier(.2,1.4,.4,1);
}
@keyframes toastIn{from{opacity:0;transform:translate(-50%,14px)}to{opacity:1;transform:translate(-50%,0)}}

/* footer */
.site-footer{padding:22px clamp(16px,4vw,36px);border-top:1px solid var(--line-soft);text-align:center}
.site-footer p{margin:0;font-size:12.5px;color:var(--text-faint)}
.site-footer a{color:var(--text-dim);text-decoration:none;border-bottom:1px solid #98a3bd44}
.site-footer a:hover{color:var(--link)}

/* ---------- responsive ---------- */
@media (max-width:1040px){
  .game-grid{grid-template-columns:1fr;}
  .side-pane{flex-direction:row;flex-wrap:wrap}
  .card-target{flex:1 1 260px}
  .card-path{flex:1 1 260px;max-height:190px}
  .article-pane{min-height:60vh}
}
@media (max-width:720px){
  .difficulty{grid-template-columns:1fr}
  .hud{padding:12px 14px;gap:12px}
  .hud-route{width:100%}
  .route-title{font-size:14px;max-width:20ch}
  .hud-stats{width:100%}
  .stat{flex:1}
  .article-body table.infobox{float:none;width:100%;max-width:100%;margin:1.2em 0}
  .article-body .reflist,.article-body .refbegin{columns:1}
  .article-body{font-size:15px}
  .brand-text{font-size:17px}
  .side-pane{flex-direction:column}
  .card-path{max-height:150px}
}
@media (max-width:420px){
  .header-actions .btn{padding:8px 11px;font-size:13px}
}