/* Bright Streak — site stylesheet (engines style themselves through their own prefixes) */
:root{
  --night:#0e1322;--deep:#151c31;--deep2:#1c2540;--deep3:#24304f;--line:#2e3a5c;--line2:#44527a;
  --ink:#eef1f8;--mist:#a3adc9;--faint:#7c87a6;--amber:#ffbe3d;--amber2:#ffd57a;--amber-ink:#231900;
  --mint:#3ccfa8;--coral:#ff6f61;--iris:#9a90ff;--sky:#6cc3ff;
  --r:18px;--r-s:12px;--gut:16px;--max:1160px;
  --f-head:"Avenir Next","Avenir","Segoe UI Variable Display","Segoe UI",Ubuntu,"Trebuchet MS",system-ui,sans-serif;
  --f-body:"Segoe UI Variable Text","Segoe UI",system-ui,-apple-system,Roboto,"Noto Sans",Ubuntu,sans-serif;
  --f-num:ui-monospace,"SF Mono","Cascadia Mono","Roboto Mono",Menlo,monospace;
  color-scheme:dark;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;text-size-adjust:100%}
body{margin:0;background:var(--night);color:var(--ink);font:16px/1.6 var(--f-body);
  background-image:radial-gradient(1px 1px at 12% 18%,rgba(255,255,255,.35) 50%,transparent 51%),
    radial-gradient(1px 1px at 68% 9%,rgba(255,255,255,.28) 50%,transparent 51%),
    radial-gradient(1.5px 1.5px at 86% 32%,rgba(255,213,122,.35) 50%,transparent 51%),
    radial-gradient(1px 1px at 34% 41%,rgba(255,255,255,.2) 50%,transparent 51%);
  background-size:520px 420px;background-attachment:fixed}
img,svg{max-width:100%}
a{color:var(--amber2);text-underline-offset:3px}
a:hover{color:#fff}
h1,h2,h3{font-family:var(--f-head);line-height:1.18;margin:0 0 .5em;letter-spacing:-.01em;hyphens:auto}
h1{font-size:clamp(1.85rem,4.6vw,3rem);font-weight:800}
h2{font-size:clamp(1.35rem,2.8vw,1.85rem);font-weight:750}
h3{font-size:1.12rem;font-weight:700}
p{margin:0 0 1em}
.bsd-skip{position:absolute;left:-999px;top:8px;background:var(--amber);color:var(--amber-ink);padding:8px 12px;border-radius:8px;z-index:30}
.bsd-skip:focus{left:8px}
.bsd-sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.bsd-wrap{max-width:var(--max);margin:0 auto;padding:0 var(--gut)}

/* ---------------------------------------------------------------- top bar */
.bsd-top{position:sticky;top:0;z-index:20;background:rgba(14,19,34,.92);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.bsd-top .bsd-wrap{display:flex;align-items:center;gap:12px;min-height:60px;flex-wrap:wrap}
.bsd-mark{display:flex;align-items:center;gap:10px;color:var(--ink);text-decoration:none;font:800 1.15rem/1 var(--f-head);margin-right:auto}
.bsd-mark svg{width:46px;height:30px;flex:none}
.bsd-mark b{color:var(--amber)}
.bsd-burger{display:inline-flex;align-items:center;gap:8px;background:var(--deep2);color:var(--ink);border:1px solid var(--line2);border-radius:999px;padding:8px 14px;font:600 .95rem var(--f-body);cursor:pointer}
.bsd-burger svg{width:18px;height:18px}
.bsd-nav{display:none;width:100%;padding:6px 0 14px}
.bsd-nav.is-open{display:block}
.bsd-nav ul{list-style:none;margin:0;padding:0;display:grid;gap:4px}
.bsd-nav a{display:block;padding:9px 12px;border-radius:10px;color:var(--ink);text-decoration:none;font-weight:600}
.bsd-nav a:hover,.bsd-nav a[aria-current]{background:var(--deep2);color:var(--amber2)}
.bsd-langs{display:flex;flex-wrap:wrap;gap:6px;margin-top:10px !important;grid-template-columns:none !important}
.bsd-langs a{padding:6px 11px;border:1px solid var(--line2);border-radius:999px;font-size:.88rem}
.bsd-langs a[aria-current]{border-color:var(--amber);color:var(--amber)}
.bsd-lc{display:none}
@media (min-width:1100px){
  .bsd-burger{display:none}
  .bsd-nav{display:flex !important;width:auto;padding:0;align-items:center;gap:14px}
  .bsd-nav ul{display:flex;gap:2px}
  .bsd-nav a{padding:8px 11px;font-size:.95rem}
  .bsd-langs{margin:0 !important}
  .bsd-top .bsd-wrap{flex-wrap:nowrap}
  .bsd-lc{display:inline}.bsd-ln{display:none}
  .bsd-langs a{padding:5px 9px}
}

/* ---------------------------------------------------------------- buttons, chips */
.bsd-btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:46px;padding:11px 20px;border-radius:999px;
  background:var(--amber);color:var(--amber-ink);font:700 1rem/1.2 var(--f-body);text-decoration:none;border:0;cursor:pointer;text-align:center;
  box-shadow:0 0 0 0 rgba(255,190,61,.4),0 8px 22px rgba(255,190,61,.18)}
.bsd-btn:hover{background:var(--amber2);color:var(--amber-ink)}
.bsd-btn:disabled{opacity:.6;cursor:default}
.bsd-btn.is-quiet{background:transparent;color:var(--ink);border:1px solid var(--line2);box-shadow:none}
.bsd-btn.is-quiet:hover{border-color:var(--amber);color:var(--amber2)}
.bsd-chips{display:flex;flex-wrap:wrap;gap:8px;margin:0 0 12px}
.bsd-chips span{flex-basis:100%;font-size:.82rem;color:var(--mist);text-transform:uppercase;letter-spacing:.08em}
.bsd-chips .bsd-row{display:flex;gap:8px;flex-basis:100%;overflow-x:auto;padding-bottom:4px;scrollbar-width:thin}
.bsd-chips .bsd-row button{flex:none}
.bsd-chips button{min-height:38px;padding:7px 14px;border-radius:999px;border:1px solid var(--line2);background:var(--deep);color:var(--ink);font:600 .92rem var(--f-body);cursor:pointer}
.bsd-chips button[aria-pressed="true"]{background:var(--amber);border-color:var(--amber);color:var(--amber-ink)}
.bsd-pill{display:inline-block;padding:3px 10px;border-radius:999px;background:var(--deep3);color:var(--amber2);font:700 .78rem/1.5 var(--f-body);letter-spacing:.06em;text-transform:uppercase}

/* ---------------------------------------------------------------- bulbs */
.bsd-bulb{width:44px;height:44px;flex:none;overflow:visible}
.bsd-bulb .bsd-glass{fill:#26304e;stroke:#55638c;stroke-width:1.6}
.bsd-bulb .bsd-cap{stroke:#7d89ad;stroke-width:2.6;stroke-linecap:round;fill:none}
.bsd-bulb .bsd-ray{stroke:#3a4569;stroke-width:3;stroke-linecap:round}
.bsd-bulb.is-lit .bsd-glass{fill:var(--amber);stroke:#ffe6a8;filter:drop-shadow(0 0 7px rgba(255,190,61,.75))}
.bsd-bulb .bsd-ray.on{stroke:var(--amber2)}

/* ---------------------------------------------------------------- home */
.bsd-hero{padding:34px 0 26px;display:grid;gap:26px}
.bsd-kicker{color:var(--amber);font:700 .82rem/1.4 var(--f-body);letter-spacing:.14em;text-transform:uppercase;margin:0 0 10px}
.bsd-lead{font-size:1.1rem;color:#d6dbea;max-width:38em}
.bsd-cta{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px}
.bsd-tonight{background:linear-gradient(160deg,#1d2747,#141b31);border:1px solid var(--line2);border-radius:var(--r);padding:20px;position:relative}
.bsd-tonight h2{font-size:1.25rem;margin-bottom:2px}
.bsd-tonight .bsd-date{color:var(--mist);margin-bottom:12px}
.bsd-tonight ol{list-style:none;margin:0 0 16px;padding:0;display:grid;gap:4px}
.bsd-lampline{display:grid;grid-template-columns:44px 1fr;align-items:center;gap:4px 12px;padding:8px 0;border-bottom:1px dashed var(--line)}
.bsd-lampline span{min-width:0}
.bsd-lampline b{display:block;font-size:.76rem;letter-spacing:.1em;text-transform:uppercase;color:var(--mist)}
.bsd-lampline em{grid-column:2;font-style:normal;color:var(--faint);font-size:.88rem}
.bsd-lampline.is-lit em{color:var(--amber2)}
.bsd-clock{display:flex;flex-wrap:wrap;gap:6px;align-items:baseline;color:var(--mist);font-size:.9rem;margin-top:12px}
.bsd-clock b{font:700 1rem var(--f-num);color:var(--ink)}
.bsd-band{display:grid;gap:18px;margin:10px 0 34px}
.bsd-panel{background:var(--deep);border:1px solid var(--line);border-radius:var(--r);padding:18px}
.bsd-panel h2{font-size:1.15rem}
.bsd-streak{display:flex;flex-wrap:wrap;align-items:baseline;gap:6px 18px}
.bsd-streak strong{font:800 2.6rem/1 var(--f-num);color:var(--amber)}
.bsd-streak small{color:var(--mist)}
.bsd-streak p{flex-basis:100%;margin:6px 0 0;color:var(--mist);font-size:.92rem;min-height:1.2em}
.bsd-cal{display:grid;grid-template-columns:repeat(7,minmax(0,1fr));gap:5px;max-width:330px;margin-top:12px}
.bsd-cell{aspect-ratio:1;border-radius:6px;background:#1b2440;border:1px solid #273255}
.bsd-cell.g1{background:#4a3b1d}.bsd-cell.g2{background:#93691d}.bsd-cell.g3{background:var(--amber);box-shadow:0 0 9px rgba(255,190,61,.55)}
.bsd-cell.full{border-color:#ffe6a8}
.bsd-cell.now{outline:2px solid var(--sky);outline-offset:1px}
.bsd-legend{display:flex;flex-wrap:wrap;gap:12px;font-size:.82rem;color:var(--mist);margin-top:10px}
.bsd-legend i{display:inline-block;width:12px;height:12px;border-radius:3px;vertical-align:-1px;margin-right:5px}
.bsd-next{list-style:none;margin:8px 0 0;padding:0;display:grid;gap:8px}
.bsd-kind{display:inline-block;min-width:5.5em;color:var(--mist);font-size:.8rem;letter-spacing:.08em;text-transform:uppercase}
.bsd-shelf{margin:8px 0 40px}
.bsd-shelf>header{display:flex;flex-wrap:wrap;align-items:baseline;gap:6px 14px;margin:24px 0 12px}
.bsd-shelf>header p{margin:0;color:var(--mist)}
.bsd-cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(100%,240px),1fr));gap:14px}
.bsd-card{display:flex;flex-direction:column;background:var(--deep);border:1px solid var(--line);border-radius:var(--r);overflow:hidden;color:var(--ink);text-decoration:none;transition:transform .15s,border-color .15s}
.bsd-card:hover{transform:translateY(-2px);border-color:var(--amber);color:var(--ink)}
.bsd-card .bsd-art{aspect-ratio:16/10;background:#111830;display:block}
.bsd-card .bsd-art svg,.bsd-card .bsd-art img{display:block;width:100%;height:100%;object-fit:cover}
.bsd-card div{padding:12px 14px 16px}
.bsd-card h3{margin:0 0 4px}
.bsd-card p{margin:0;color:var(--mist);font-size:.93rem}
.bsd-steps{counter-reset:s;display:grid;gap:14px;margin:0 0 40px;padding:0;list-style:none}
.bsd-steps li{counter-increment:s;background:var(--deep);border:1px solid var(--line);border-radius:var(--r);padding:16px 16px 16px 60px;position:relative}
.bsd-steps li::before{content:counter(s);position:absolute;left:16px;top:14px;width:30px;height:30px;border-radius:50%;background:var(--amber);color:var(--amber-ink);font:800 1rem/30px var(--f-num);text-align:center}
.bsd-continue{margin:0 0 20px;padding:12px 16px;border-radius:var(--r-s);background:#1a2a2a;border:1px solid #2c5b52}
@media (min-width:860px){
  .bsd-hero{grid-template-columns:1.2fr 1fr;align-items:center;padding:56px 0 34px}
  .bsd-band{grid-template-columns:1fr 1.1fr 1fr}
  .bsd-steps{grid-template-columns:repeat(3,1fr)}
}

/* ---------------------------------------------------------------- the strand (daily) */
.bsd-dayhead{padding:28px 0 8px;display:flex;flex-wrap:wrap;gap:8px 18px;align-items:flex-end}
.bsd-dayhead h1{margin:0;flex-basis:100%}
.bsd-dayhead p{margin:0;color:var(--mist)}
.bsd-strand{list-style:none;margin:14px 0 26px;padding:0 0 0 0;position:relative}
.bsd-lamp{position:relative;background:var(--deep);border:1px solid var(--line);border-radius:var(--r);margin:0 0 16px;scroll-margin-top:76px}
.bsd-lamp+.bsd-lamp::before{content:"";position:absolute;left:37px;top:-17px;height:16px;border-left:2px dashed var(--line2)}
.bsd-lamp.is-lit+.bsd-lamp::before{border-color:var(--amber)}
.bsd-lamp.is-open{border-color:var(--amber)}
.bsd-lamp.just-lit{animation:bsd-flare 1.4s ease-out}
@keyframes bsd-flare{0%{box-shadow:0 0 0 0 rgba(255,190,61,.7)}100%{box-shadow:0 0 0 22px rgba(255,190,61,0)}}
.bsd-lamphead{display:grid;grid-template-columns:44px minmax(0,1fr);gap:4px 14px;padding:16px;align-items:start}
.bsd-lamphead h2{font-size:1.2rem;margin:0}
.bsd-lamphead .bsd-what{color:var(--mist);font-size:.92rem;margin:2px 0 0}
.bsd-lamphead .bsd-how{grid-column:1/-1;margin:6px 0 0;color:#cdd3e5;font-size:.95rem}
.bsd-lamphead .bsd-state{color:var(--amber2);font-weight:700;font-size:.9rem;margin:4px 0 0}
.bsd-lamphead .bsd-acts{grid-column:1/-1;display:flex;flex-wrap:wrap;gap:8px;margin-top:8px}
.bsd-stage{position:relative;border-top:1px solid var(--line);background:var(--deep)}
.bsd-stage.is-busy{min-height:300px;background:repeating-linear-gradient(90deg,var(--deep) 0 40px,var(--deep2) 40px 80px)}
.bsd-stage[data-engine="brain"],.bsd-stage[data-engine="geo"],.bsd-stage[data-engine="pub"],.bsd-stage[data-engine="jigsaw"]{height:clamp(540px,calc(100svh - 70px),780px)}
.bsd-stage[data-engine="logic"]{min-height:420px}
.bsd-lamp .bsd-stage{border-radius:0 0 var(--r) var(--r);overflow:hidden}
.bsd-nextlamp{margin:12px 16px 16px}
.bsd-done{background:linear-gradient(150deg,#3b2b07,#1d2747);border:1px solid var(--amber);border-radius:var(--r);padding:20px;margin:0 0 24px}
.bsd-done textarea{width:100%;min-height:96px;background:var(--night);color:var(--ink);border:1px solid var(--line2);border-radius:10px;padding:10px;font:600 .95rem/1.5 var(--f-num);resize:vertical}

/* ---------------------------------------------------------------- game / pack / text pages */
.bsd-crumbs{font-size:.88rem;color:var(--mist);padding:18px 0 0;margin:0}
.bsd-crumbs a{color:var(--mist)}
.bsd-gamehead{padding:10px 0 14px}
.bsd-gamehead p{color:#d6dbea;max-width:44em;margin:8px 0 0}
.bsd-board{background:var(--deep);border:1px solid var(--line);border-radius:var(--r);overflow:hidden;margin:0 0 12px}
.bsd-board .bsd-chips{padding:12px 14px 0;margin:0}
.bsd-board .bsd-stage{border-top:0}
.bsd-under{display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;align-items:center;margin:0 0 26px;color:var(--mist);font-size:.92rem}
.bsd-copy{max-width:760px;margin:0 0 34px}
.bsd-copy h2{margin-top:1.4em}
.bsd-copy ul,.bsd-copy ol{padding-left:1.3em}
.bsd-copy li{margin:.3em 0}
.bsd-copy table{border-collapse:collapse;width:100%;font-size:.94rem}
.bsd-copy th,.bsd-copy td{text-align:left;padding:7px 8px;border-bottom:1px solid var(--line);vertical-align:top}
.bsd-copy th{color:var(--mist);font-weight:600}
.bsd-tablebox{overflow-x:auto;margin:0 0 1em;border:1px solid var(--line);border-radius:var(--r-s)}
.bsd-tablebox table{min-width:420px}
.bsd-faq details{border:1px solid var(--line);border-radius:var(--r-s);padding:10px 14px;margin:0 0 8px;background:var(--deep)}
.bsd-faq summary{cursor:pointer;font-weight:700}
.bsd-faq details p{margin:.6em 0 0}
.bsd-facts{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(100%,150px),1fr));gap:10px;margin:0 0 18px;padding:0;list-style:none}
.bsd-facts li{background:var(--deep);border:1px solid var(--line);border-radius:var(--r-s);padding:10px 12px}
.bsd-facts b{display:block;font:800 1.35rem/1.2 var(--f-num);color:var(--amber2)}
.bsd-facts span{font-size:.85rem;color:var(--mist)}
.bsd-pager{display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;margin:0 0 30px}
.bsd-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(100%,92px),1fr));gap:8px;list-style:none;margin:0 0 24px;padding:0}
.bsd-grid a{display:block;text-align:center;padding:10px 4px;border-radius:10px;background:var(--deep);border:1px solid var(--line);color:var(--ink);text-decoration:none;font:700 .95rem var(--f-num)}
.bsd-grid a:hover{border-color:var(--amber)}
.bsd-grid a.is-done{border-color:var(--mint);color:var(--mint)}
.bsd-grid a.is-done::after{content:" ✓"}
.bsd-related{margin:0 0 40px}
.bsd-lines{list-style:none;padding:0;margin:0 0 20px;display:grid;gap:8px}
.bsd-lines a{display:flex;flex-wrap:wrap;justify-content:space-between;gap:4px 12px;padding:11px 14px;background:var(--deep);border:1px solid var(--line);border-radius:var(--r-s);color:var(--ink);text-decoration:none}
.bsd-lines a:hover{border-color:var(--amber)}
.bsd-lines small{color:var(--mist)}
.bsd-picbig{margin:0 0 16px;border-radius:var(--r);overflow:hidden;border:1px solid var(--line)}
.bsd-picbig img{display:block;width:100%;height:auto}

/* ---------------------------------------------------------------- footer, 404 */
.bsd-foot{border-top:1px solid var(--line);margin-top:30px;padding:26px 0 40px;color:var(--mist);font-size:.92rem}
.bsd-foot .bsd-wrap{display:grid;gap:18px}
.bsd-foot ul{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;gap:8px 18px}
.bsd-foot a{color:var(--mist)}
.bsd-lost{padding:60px 0;text-align:center}
@media (min-width:860px){.bsd-foot .bsd-wrap{grid-template-columns:1.4fr 1fr 1fr}.bsd-foot ul{display:grid;gap:6px}}
@media (prefers-reduced-motion:reduce){*{animation:none !important;transition:none !important;scroll-behavior:auto !important}}