/* ============================================================
   BROOKTRAIL — AURORA TRAIL · theme.css  (prefix bkt-)
   Bright aurora glass, chaptered tour layout.
   ============================================================ */

.bkt-sec{padding:84px 0}
.bkt-sec--paper{background:var(--bkt-paper)}
.bkt-sec--fog{background:var(--bkt-fog)}
.bkt-sec--mist{background:linear-gradient(180deg,var(--bkt-fog),var(--bkt-mist))}
.bkt-sec--ink{background:linear-gradient(155deg,#14222f,#0f1b29);color:#e9f1f8}
.bkt-sec--ink h2,.bkt-sec--ink h3{color:#fff}.bkt-sec--ink p{color:#a6b6c4}

.bkt-kick{font-family:var(--bkt-mono);font-size:11.5px;letter-spacing:.18em;text-transform:uppercase;color:var(--bkt-cyan);margin:0 0 14px}
.bkt-h1{font-family:var(--bkt-disp);font-weight:800;font-size:clamp(38px,6vw,72px);line-height:1.01;letter-spacing:-.03em}
.bkt-h2{font-family:var(--bkt-disp);font-weight:800;font-size:clamp(28px,3.8vw,46px);line-height:1.04;letter-spacing:-.025em}
.bkt-h3{font-family:var(--bkt-disp);font-weight:700;font-size:21px}
.bkt-gtext{background:var(--bkt-aurora);-webkit-background-clip:text;background-clip:text;color:transparent}
.bkt-lead{font-size:clamp(17px,1.9vw,20px);color:var(--bkt-mut);max-width:60ch;margin:16px 0 0}
.bkt-btns{display:flex;gap:12px;flex-wrap:wrap;margin-top:26px}
.bkt-rise{opacity:0;transform:translateY(20px);transition:opacity .6s,transform .6s}
.bkt-rise.in{opacity:1;transform:none}

/* ---- HERO (chapter 00) ---- */
.bkt-hero{position:relative;overflow:hidden;padding:120px 0 96px;
  background:radial-gradient(70% 60% at 85% -5%,#e3f5fb 0,transparent 55%),radial-gradient(60% 60% at 5% 100%,#e4f8f0 0,transparent 55%),var(--bkt-fog)}
.bkt-hero__orb{position:absolute;border-radius:50%;filter:blur(50px);opacity:.45}
.bkt-hero__orb.a{width:300px;height:300px;background:#9fe1f1;top:-50px;right:8%}
.bkt-hero__orb.b{width:260px;height:260px;background:#9eecda;bottom:-60px;left:2%}
.bkt-hero__in{position:relative;z-index:2;max-width:880px}
.bkt-hero h1{font-size:clamp(42px,7vw,82px);margin:14px 0 0}
.bkt-hero__chips{display:flex;gap:9px;flex-wrap:wrap;margin-top:24px}
.bkt-hchip{font-family:var(--bkt-mono);font-size:11.5px;color:var(--bkt-mut);background:var(--bkt-paper);border:1px solid var(--bkt-line);border-radius:999px;padding:7px 13px}

/* ---- CHAPTERS (guided tour) ---- */
.bkt-chapters{position:relative}
.bkt-chapters::before{content:"";position:absolute;left:50%;top:0;bottom:0;width:2px;background:linear-gradient(180deg,transparent,var(--bkt-line) 8%,var(--bkt-line) 92%,transparent);transform:translateX(-50%)}
@media(max-width:860px){.bkt-chapters::before{left:24px}}
.bkt-chapter{position:relative;display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center;padding:54px 0}
.bkt-chapter__num{position:absolute;left:50%;top:54px;transform:transl(-50%,0);transform:translateX(-50%);
  width:54px;height:54px;border-radius:50%;background:var(--bkt-paper);border:2px solid var(--bkt-line);
  display:flex;align-items:center;justify-content:center;font-family:var(--bkt-mono);font-weight:600;font-size:14px;color:var(--bkt-cyan);z-index:3}
.bkt-chapter.rev .bkt-chapter__body{order:2}
.bkt-chapter__body{padding:0 8px}
.bkt-chapter__art{border-radius:20px;min-height:280px;display:flex;align-items:center;justify-content:center;position:relative;overflow:hidden;background:var(--bkt-mist);border:1px solid var(--bkt-line)}
.bkt-chapter__art .glyph{font-size:104px}
.bkt-chapter__art.aur{background:var(--bkt-aurora)}
.bkt-chapter__art.aur .glyph{filter:drop-shadow(0 8px 16px rgba(0,0,0,.16))}
.bkt-chapter h2{margin:0 0 12px}
.bkt-chmark{font-family:var(--bkt-mono);font-size:12px;letter-spacing:.14em;text-transform:uppercase;color:var(--bkt-cyan);margin:0 0 8px}
.bkt-chapter ul{list-style:none;padding:0;margin:16px 0 0}
.bkt-chapter li{padding:7px 0 7px 24px;position:relative;color:var(--bkt-mut);font-size:15px}
.bkt-chapter li::before{content:"";position:absolute;left:0;top:14px;width:10px;height:10px;border-radius:50%;background:var(--bkt-mint)}
@media(max-width:860px){
  .bkt-chapter{grid-template-columns:1fr;gap:24px;padding:40px 0 40px 64px}
  .bkt-chapter__num{left:24px;transform:none;top:40px}
  .bkt-chapter.rev .bkt-chapter__body{order:0}
}

/* ---- generic ---- */
.bkt-g2{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.bkt-g3{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.bkt-card{background:var(--bkt-paper);border:1px solid var(--bkt-line);border-radius:var(--bkt-rad);padding:26px;transition:.2s}
.bkt-card:hover{transform:translateY(-3px);box-shadow:0 24px 46px -30px rgba(21,34,46,.4);border-color:#bfe6f1}
.bkt-card .em{font-size:25px}.bkt-card h3{font-size:18px;margin:11px 0 7px}.bkt-card p{margin:0;color:var(--bkt-mut);font-size:14.5px}
.bkt-callout{background:linear-gradient(135deg,#e8f7fc,#e7faf3);border:1px solid #bfe6f1;border-radius:var(--bkt-rad);padding:22px 24px;display:flex;gap:14px;align-items:flex-start}
.bkt-callout .em{font-size:22px}.bkt-callout p{margin:0;font-size:14.5px;color:#0a4450}.bkt-callout strong{color:var(--bkt-ink)}
.bkt-prose{max-width:740px}.bkt-prosetop{max-width:760px}
.bkt-prose h2{font-family:var(--bkt-disp);font-size:24px;margin:38px 0 10px}
.bkt-prose h3{font-family:var(--bkt-disp);font-size:18px;margin:24px 0 8px}
.bkt-prose p{color:var(--bkt-mut);margin:0 0 14px}
.bkt-prose ul{color:var(--bkt-mut);padding-left:20px}.bkt-prose li{margin:6px 0}
.bkt-prose a{color:var(--bkt-cyan);font-weight:600}
.bkt-updated{font-family:var(--bkt-mono);font-size:12px;color:var(--bkt-dim);margin-top:8px}
.bkt-faq{border-bottom:1px solid var(--bkt-line)}
.bkt-faq summary{cursor:pointer;font-weight:600;padding:14px 0;list-style:none;font-size:15px}
.bkt-faq summary::-webkit-details-marker{display:none}
.bkt-faq summary::before{content:"+ ";color:var(--bkt-cyan);font-family:var(--bkt-mono)}
.bkt-faq[open] summary::before{content:"\2013 "}
.bkt-faq .a{padding:0 0 15px;color:var(--bkt-mut);font-size:14.5px}
.bkt-noscript{background:#fff6e3;border:1px solid #f0d089;color:#6a4d11;border-radius:12px;padding:16px 18px;margin:20px 0}
.bkt-noscript a{color:#0a7a86;font-weight:600}

/* ---- overlay menu ---- */
.bkt-overlay{position:fixed;inset:0;z-index:200;background:rgba(244,248,251,.97);backdrop-filter:blur(12px);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:6px}
.bkt-overlay__x{position:absolute;top:20px;right:22px;width:44px;height:44px;border-radius:50%;border:1px solid var(--bkt-line);background:#fff;font-size:24px;cursor:pointer;color:var(--bkt-ink)}
.bkt-overlay nav{display:flex;flex-direction:column;align-items:center;gap:6px}
.bkt-overlay a{font-family:var(--bkt-disp);font-weight:700;font-size:23px;color:var(--bkt-ink);padding:5px 0}
.bkt-overlay a:hover{color:var(--bkt-cyan)}

/* ====================================================
   GAME 1 · CASCADE FALLS  (cluster tumble 5x4)
   ==================================================== */
.bkt-cascade{display:grid;grid-template-columns:1.5fr .85fr;gap:22px;align-items:start}
.bkt-cab{background:var(--bkt-paper);border:1px solid var(--bkt-line);border-radius:18px;padding:22px;transition:.3s}
.bkt-cab.idle .bkt-cgrid{filter:saturate(.4) opacity(.72)}
.bkt-cab.chain{box-shadow:0 0 0 2px var(--bkt-lav) inset}
.bkt-cgrid{display:grid;grid-template-columns:repeat(5,1fr);gap:8px;background:var(--bkt-mist);border-radius:13px;padding:10px}
.bkt-ccell{aspect-ratio:1/1;background:var(--bkt-paper);border:1px solid var(--bkt-line);border-radius:11px;display:flex;align-items:center;justify-content:center;font-size:clamp(22px,3.4vw,32px);transition:transform .25s,opacity .25s}
.bkt-ccell.fall{animation:bkt-fall .3s ease}
.bkt-ccell.win{border-color:var(--bkt-mint);box-shadow:0 0 0 3px rgba(30,200,166,.28);background:#e7faf3}
.bkt-ccell.pop{transform:scale(.2);opacity:0}
@keyframes bkt-fall{0%{transform:translateY(-14px);opacity:.4}100%{transform:none;opacity:1}}
.bkt-cmsg{text-align:center;font-family:var(--bkt-mono);font-size:13px;color:var(--bkt-mut);min-height:20px;margin:14px 0 2px}
.bkt-cmsg.win{color:var(--bkt-mint);font-weight:600}
.bkt-ctrl{display:flex;gap:11px;align-items:center;margin-top:14px;flex-wrap:wrap}
.bkt-stake{display:flex;align-items:center;gap:7px;background:var(--bkt-mist);border:1px solid var(--bkt-line);border-radius:10px;padding:5px 6px}
.bkt-stake button{width:32px;height:32px;border-radius:8px;border:1px solid var(--bkt-line);background:var(--bkt-paper);cursor:pointer;font-size:17px}
.bkt-stake .sv{font-family:var(--bkt-mono);font-weight:600;min-width:56px;text-align:center}
.bkt-side{display:flex;flex-direction:column;gap:14px}
.bkt-bal{background:linear-gradient(155deg,#14222f,#0f1b29);color:#fff;border-radius:16px;padding:22px}
.bkt-bal .l{font-family:var(--bkt-mono);font-size:11px;letter-spacing:.12em;text-transform:uppercase;color:#a6b6c4}
.bkt-bal .amt{font-family:var(--bkt-mono);font-size:34px;font-weight:600;margin:5px 0 14px;background:linear-gradient(120deg,#86d8ee,#84e7d2 52%,#c4baff);-webkit-background-clip:text;background-clip:text;color:transparent}
.bkt-stats{display:grid;grid-template-columns:1fr 1fr;gap:9px}
.bkt-stat{background:var(--bkt-paper);border:1px solid var(--bkt-line);border-radius:11px;padding:13px}
.bkt-stat .v{font-family:var(--bkt-mono);font-size:19px;font-weight:600}.bkt-stat .l{font-size:11.5px;color:var(--bkt-mut)}
.bkt-pay{background:var(--bkt-paper);border:1px solid var(--bkt-line);border-radius:14px;padding:18px}
.bkt-pay h4{margin:0 0 10px;font-family:var(--bkt-disp);font-size:15px}
.bkt-payrow{display:flex;justify-content:space-between;align-items:center;padding:6px 0;border-top:1px solid var(--bkt-line);font-size:13.5px;color:var(--bkt-mut)}
.bkt-payrow .s{font-size:19px}.bkt-payrow .p{font-family:var(--bkt-mono);font-weight:600;color:var(--bkt-ink)}

/* ====================================================
   GAME 2 · AURORA DROP  (plinko)
   ==================================================== */
.bkt-drop{display:grid;grid-template-columns:1.3fr .8fr;gap:22px;align-items:start}
.bkt-stage{background:var(--bkt-paper);border:1px solid var(--bkt-line);border-radius:18px;padding:22px;text-align:center}
.bkt-board{position:relative;width:100%;max-width:460px;margin:0 auto;aspect-ratio:1/1.05;background:linear-gradient(180deg,#eef7fb,#e7f3f0);border-radius:14px;overflow:hidden}
.bkt-peg{position:absolute;width:8px;height:8px;border-radius:50%;background:#9fb6c4;transform:translate(-50%,-50%)}
.bkt-ball{position:absolute;width:18px;height:18px;border-radius:50%;background:var(--bkt-aurora);box-shadow:0 2px 6px rgba(0,0,0,.25);transform:translate(-50%,-50%);left:50%;top:3%;opacity:0;z-index:4}
.bkt-bins{position:absolute;left:0;right:0;bottom:0;display:flex;height:13%}
.bkt-bin{flex:1;display:flex;align-items:center;justify-content:center;font-family:var(--bkt-mono);font-size:11px;font-weight:600;color:#fff;border-right:1px solid rgba(255,255,255,.4)}
.bkt-bin:last-child{border-right:none}
.bkt-bin.lit{outline:3px solid #fff;outline-offset:-3px;z-index:2}
.bkt-dmsg{font-family:var(--bkt-mono);font-size:13px;color:var(--bkt-mut);min-height:20px;margin:14px 0 6px}
.bkt-dmsg.win{color:var(--bkt-mint);font-weight:600}.bkt-dmsg.lose{color:var(--bkt-red);font-weight:600}
.bkt-dctrl{display:flex;gap:11px;align-items:center;justify-content:center;flex-wrap:wrap}

@media(max-width:980px){
  .bkt-cascade,.bkt-drop{grid-template-columns:1fr}
  .bkt-g3{grid-template-columns:1fr 1fr}
}
@media(max-width:600px){.bkt-g2,.bkt-g3{grid-template-columns:1fr}}
@media(prefers-reduced-motion:reduce){*{animation-duration:.001ms!important;transition-duration:.001ms!important}.bkt-rise{opacity:1;transform:none}}

/* ---- footer ---- */
.bkt-foot{background:linear-gradient(180deg,var(--bkt-fog),var(--bkt-mist));border-top:1px solid var(--bkt-line);padding:56px 0 36px}
.bkt-foot__trail{display:flex;align-items:center;gap:16px}
.bkt-foot__word{font-family:var(--bkt-disp);font-weight:800;font-size:26px;letter-spacing:-.02em;background:var(--bkt-aurora);-webkit-background-clip:text;background-clip:text;color:transparent}
.bkt-foot__line{flex:1;height:2px;background:linear-gradient(90deg,var(--bkt-line),transparent)}
.bkt-foot__edition{font-family:var(--bkt-mono);font-size:12px;color:var(--bkt-dim)}
.bkt-foot__tag{color:var(--bkt-mut);font-size:14px;margin:12px 0 22px;max-width:48ch}
.bkt-foot__links{display:flex;flex-wrap:wrap;gap:9px 16px;margin-bottom:22px}
.bkt-foot__links a{font-size:13.5px;color:var(--bkt-mut)}
.bkt-foot__links a:hover{color:var(--bkt-cyan)}
.bkt-foot__comp{display:flex;gap:13px;align-items:flex-start;background:var(--bkt-paper);border:1px solid var(--bkt-line);border-radius:14px;padding:18px 20px}
.bkt-foot__age{flex:0 0 auto;width:42px;height:42px;border-radius:50%;background:var(--bkt-red);color:#fff;font-family:var(--bkt-disp);font-weight:800;display:flex;align-items:center;justify-content:center;font-size:14px}
.bkt-foot__comp p{margin:0;font-size:13.5px;color:var(--bkt-mut)}.bkt-foot__comp a{color:var(--bkt-cyan);font-weight:600}
.bkt-foot__base{margin-top:18px;font-family:var(--bkt-mono);font-size:11.5px;color:var(--bkt-dim)}