/* The pit's chrome. Everything a miner reads sits on top of the WebGL mine.

   Palette is carbide light on coal: warm blacks (never blue), lamp amber,
   brass, bone. Hazard red is the only cold thing and it only ever means stop.
   Type: Archivo's real width axis for painted signage, Plex Mono for anything
   the Company writes down. */

@font-face{font-family:'Archivo VF';src:url('../fonts/archivo-wdth.woff2') format('woff2-variations');font-weight:100 900;font-stretch:62% 125%;font-display:swap}
@font-face{font-family:'Plex Mono';src:url('../fonts/plex-mono-400.woff2') format('woff2');font-weight:400;font-display:swap}
@font-face{font-family:'Plex Mono';src:url('../fonts/plex-mono-500.woff2') format('woff2');font-weight:500;font-display:swap}
@font-face{font-family:'Plex Mono';src:url('../fonts/plex-mono-700.woff2') format('woff2');font-weight:700;font-display:swap}
@font-face{font-family:'Plex Sans';src:url('../fonts/plex-sans-400.woff2') format('woff2');font-weight:400;font-display:swap}
@font-face{font-family:'Plex Sans';src:url('../fonts/plex-sans-600.woff2') format('woff2');font-weight:600;font-display:swap}

:root{
  --pitch:#050403; --coal:#0e0c0a; --coal-2:#171310; --wall:#241d16; --edge:#3a2f24;
  --lamp:#ffc98a; --lamp-hot:#ffe6c2; --brass:#b08d4a; --brass-hi:#e2c27a; --rust:#7a3b22;
  --bone:#efe7d6; --dust:#a99c86; --mute:#948872; --red:#d64b2a; --ice:#cff7ff; --gas:#7fe7a0;
  --s1:6px; --s2:12px; --s3:20px; --s4:32px; --s5:52px;
}
*{margin:0;padding:0;box-sizing:border-box}
html{-webkit-text-size-adjust:100%;height:100%}
body{background:var(--pitch);color:var(--bone);font-family:'Plex Sans',system-ui,sans-serif;line-height:1.5;
  min-height:100%;overflow:hidden;position:fixed;inset:0}
.mono{font-family:'Plex Mono',ui-monospace,monospace}
.sign{font-family:'Archivo VF',Impact,sans-serif;text-transform:uppercase;font-variation-settings:'wdth' 66,'wght' 900;line-height:.9;letter-spacing:.005em}
.hidden{display:none !important}
button{font:inherit;color:inherit}
a{color:var(--brass-hi)}
::selection{background:var(--brass);color:var(--pitch)}

/* ── the mine ─────────────────────────────────────────────────────────── */
#gl{position:fixed;inset:0;width:100%;height:100%;display:block;opacity:0;transition:opacity .8s ease;touch-action:none;cursor:crosshair}
#gl.on{opacity:1}
#veil{position:fixed;inset:0;background:#000;opacity:0;pointer-events:none;z-index:40;transition:opacity .6s ease}
#veil.on{opacity:1}
#dial{position:fixed;left:50%;bottom:14vh;transform:translateX(-50%);z-index:30;text-align:center;opacity:0;transition:opacity .5s;pointer-events:none}
#dial.on{opacity:1}
#dial span{display:block;font-family:'Plex Mono',monospace;font-size:11px;letter-spacing:.32em;color:var(--dust)}
#dial b{display:block;font-family:'Plex Mono',monospace;font-size:clamp(48px,11vw,96px);font-weight:700;color:var(--lamp);line-height:1;
  text-shadow:0 0 30px rgba(255,201,138,.35);margin:6px 0}

/* ── HUD ──────────────────────────────────────────────────────────────── */
#hud{position:fixed;inset:0;z-index:20;pointer-events:none;opacity:0;transition:opacity .6s}
#hud.on{opacity:1}
#hud > *{position:absolute}
.hud-tl{top:max(14px,env(safe-area-inset-top));left:16px}
.hud-tr{top:max(14px,env(safe-area-inset-top));right:16px;display:flex;gap:18px;align-items:flex-start}
.hud-bc{bottom:max(18px,env(safe-area-inset-bottom));left:50%;transform:translateX(-50%);text-align:center}
.tag{font-family:'Plex Mono',monospace;font-weight:700;font-size:15px;color:var(--pitch);background:linear-gradient(180deg,var(--brass-hi),var(--brass));
  padding:8px 12px 7px;border-radius:2px 2px 8px 8px;box-shadow:0 2px 0 #5c4720,0 6px 14px rgba(0,0,0,.6);position:relative;letter-spacing:.06em}
.tag::before{content:'';position:absolute;top:-7px;left:50%;width:9px;height:9px;margin-left:-4.5px;border-radius:50%;background:var(--pitch);border:2px solid var(--brass)}
.tag-sub{font-family:'Plex Mono',monospace;font-size:10px;letter-spacing:.28em;color:var(--dust);margin-top:6px;text-align:center}
.ro span{display:block;font-family:'Plex Mono',monospace;font-size:10px;letter-spacing:.28em;color:var(--dust)}
.ro b{display:block;font-family:'Plex Mono',monospace;font-size:17px;font-weight:700;color:var(--lamp);margin-top:2px}
#hud-mute{pointer-events:auto;background:none;border:1px solid var(--edge);color:var(--dust);font-family:'Plex Mono',monospace;font-size:10px;
  letter-spacing:.2em;padding:7px 9px;cursor:pointer;border-radius:2px;margin-top:2px}
#hud-mute:hover,#hud-mute:focus-visible{color:var(--lamp);border-color:var(--brass)}
.lamps{display:flex;gap:10px;justify-content:center}
.lamp{display:block;width:16px;height:22px;position:relative}
.lamp b{position:absolute;inset:0;border:1px solid var(--edge);border-radius:8px 8px 3px 3px;background:#0a0806;transition:background .3s, box-shadow .3s, border-color .3s}
.lamp.lit b{background:radial-gradient(circle at 50% 40%,var(--lamp-hot),var(--lamp) 45%,#7a4d1a 100%);border-color:var(--brass);box-shadow:0 0 14px rgba(255,201,138,.55),0 0 34px rgba(255,180,100,.25)}
@media (prefers-reduced-motion:no-preference){ .lamp.now b{animation:lampwait 1.3s ease-in-out infinite} @keyframes lampwait{50%{border-color:var(--brass-hi);box-shadow:0 0 10px rgba(255,201,138,.25)}} }
.lamps-cap{font-family:'Plex Mono',monospace;font-size:10px;letter-spacing:.3em;color:var(--mute);margin-top:8px}
.hud-line{left:16px;bottom:max(18px,env(safe-area-inset-bottom));max-width:min(46vw,520px);font-family:'Plex Mono',monospace;font-size:12px;
  letter-spacing:.06em;color:var(--lamp);text-shadow:0 0 12px rgba(0,0,0,.9);opacity:0;transition:opacity .4s;line-height:1.5}
.hud-line.on{opacity:1}
.hud-line.on::after{content:'_';animation:blink 1s steps(1,end) infinite}
@keyframes blink{50%{opacity:0}}
@media (max-width:720px){ .hud-line{max-width:60vw;font-size:11px;bottom:auto;top:calc(max(14px,env(safe-area-inset-top)) + 64px);left:16px} }

/* ── panels (the face, the pay window) ────────────────────────────────── */
.panel{position:fixed;left:50%;top:50%;transform:translate(-50%,-48%) scale(.985);z-index:25;width:min(94vw,760px);
  background:linear-gradient(180deg,#1a1510 0%,#0f0c09 100%);border:1px solid #3d3126;border-radius:3px;
  box-shadow:0 0 0 1px #0a0806,0 30px 80px rgba(0,0,0,.85),inset 0 1px 0 rgba(255,201,138,.08);
  opacity:0;pointer-events:none;transition:opacity .35s ease, transform .35s ease;max-height:92vh;display:flex;flex-direction:column}
.panel.on{opacity:1;pointer-events:auto;transform:translate(-50%,-50%) scale(1)}
.panel::before,.panel::after{content:'';position:absolute;top:10px;width:8px;height:8px;border-radius:50%;background:#4a3d2c;box-shadow:inset 0 1px 1px rgba(0,0,0,.8),0 0 0 1px #2a2119}
.panel::before{left:10px}.panel::after{right:10px}
.panel-head{padding:var(--s3) var(--s4) var(--s2);border-bottom:1px solid #2a2119;display:flex;align-items:baseline;justify-content:space-between;gap:var(--s3);flex-wrap:wrap}
.panel-head .mono{font-size:11px;letter-spacing:.3em;color:var(--dust)}
.panel-head h2{font-size:clamp(28px,5vw,44px);color:var(--bone)}
.panel-body{padding:var(--s3) var(--s4);overflow:auto;flex:1;min-height:0}
.panel-foot{padding:var(--s2) var(--s4) var(--s3);border-top:1px solid #2a2119;display:flex;align-items:center;gap:var(--s3)}
.brief{color:#cfc4ae;font-size:15.5px;line-height:1.65;max-width:58ch}
.brief b{color:var(--bone);font-weight:600}
.stage{width:100%;height:min(58vh,520px);background:#0a0806;border:1px solid #2a2119;position:relative;overflow:hidden;user-select:none;-webkit-user-select:none}
.demo{width:100%;height:min(30vh,220px);background:#0a0806;border:1px solid #2a2119;position:relative;overflow:hidden;margin-bottom:var(--s2);user-select:none}
.hint{font-size:11px;letter-spacing:.22em;color:var(--lamp);margin-bottom:var(--s2);text-transform:uppercase}
.game-canvas{display:block;width:100%;height:100%;touch-action:none;cursor:crosshair}
.pbar{flex:1;height:4px;background:rgba(255,255,255,.06);position:relative;overflow:hidden}
.pbar i{position:absolute;left:0;top:0;bottom:0;width:0;background:var(--lamp);transition:width .2s}
.tip{font-size:11px;letter-spacing:.08em;color:var(--lamp);min-height:1.4em;text-align:right;max-width:52%}
.result-k{font-size:10.5px;letter-spacing:.3em;color:#e35d3f;margin-bottom:8px}
.result{font-family:'Plex Mono',monospace;font-size:clamp(15px,2.4vw,20px);color:var(--bone);letter-spacing:.02em;line-height:1.55;margin-bottom:var(--s3);max-width:44ch}
@media (max-width:640px){
  .panel-head,.panel-body,.panel-foot{padding-left:var(--s3);padding-right:var(--s3)}
  /* portrait: panel takes nearly the whole screen; the game gets the height */
  .panel{width:96vw;max-height:calc(100dvh - 20px)}
  .panel-head{padding-top:var(--s2)}
  .panel-head h2{font-size:24px}
  .stage{height:min(56dvh,460px)}
  .demo{height:min(21dvh,160px)}
  .brief{font-size:13.5px;line-height:1.55}
  .hint{font-size:10px;letter-spacing:.16em}
  /* thumb-sized primary actions */
  .btn{padding:16px 24px;font-size:13px}
  .tip{max-width:46%}
  .result{font-size:14px}
}
/* very short landscape phones: shrink the demo, keep the game playable */
@media (max-height:450px){
  .demo{display:none}
  .stage{height:min(62dvh,340px)}
  .panel{max-height:calc(100dvh - 12px)}
  .panel-head h2{font-size:20px}
}

/* ── controls ─────────────────────────────────────────────────────────── */
.btn{display:inline-block;background:linear-gradient(180deg,var(--brass-hi),var(--brass));color:var(--pitch);border:0;border-radius:2px;
  font-family:'Plex Mono',monospace;font-weight:700;font-size:12.5px;letter-spacing:.2em;text-transform:uppercase;padding:14px 22px;cursor:pointer;
  box-shadow:0 2px 0 #5c4720,0 8px 20px rgba(0,0,0,.5);text-decoration:none;transition:transform .08s, filter .15s;margin-top:var(--s3)}
.btn:hover,.btn:focus-visible{filter:brightness(1.08);outline:2px solid var(--lamp-hot);outline-offset:2px}
.btn:active{transform:translateY(2px);box-shadow:0 0 0 #5c4720,0 4px 12px rgba(0,0,0,.5)}
.btn:disabled{background:#2a2119;color:#948872;box-shadow:none;cursor:not-allowed;filter:none}
.btn.ghost{background:none;color:var(--brass-hi);border:1px solid var(--brass);box-shadow:none}
.btn.danger{background:linear-gradient(180deg,#e0573a,#a83320);color:#fff;box-shadow:0 2px 0 #5a1a0f,0 8px 20px rgba(0,0,0,.5)}
.btn.enter{width:100%;padding:18px 22px;font-size:14px;letter-spacing:.28em}
.lbl{display:block;font-size:10px;letter-spacing:.28em;color:var(--dust);margin:var(--s3) 0 8px}
.input{width:100%;background:#0a0806;border:1px solid #3d3126;color:var(--bone);font-size:14px;padding:13px 14px;border-radius:2px;outline:none}
.input:focus{border-color:var(--brass);box-shadow:0 0 0 3px rgba(176,141,74,.18)}
.input.bad{border-color:var(--red)}
.input::placeholder{color:#5c5246}
.err{color:var(--red);font-size:11px;letter-spacing:.06em;margin-top:8px;min-height:1.2em}
.fine{font-size:11.5px;letter-spacing:.06em;color:var(--mute);margin-top:var(--s3);line-height:1.7}

/* ── the pay receipt ──────────────────────────────────────────────────── */
.scrip{background:#e9e0c9;color:#1a1611;border:2px solid #1a1611;padding:var(--s4);position:relative;margin-top:var(--s2);
  background-image:repeating-linear-gradient(135deg,transparent 0 7px,rgba(123,33,24,.05) 7px 8px)}
.scrip::before{content:'';position:absolute;inset:8px;border:1px solid #1a1611;pointer-events:none}
.scrip-corner{position:absolute;font-family:'Plex Mono',monospace;font-weight:700;color:#7b2118;font-size:14px}
.scrip-corner.tl{top:18px;left:20px}.scrip-corner.tr{top:18px;right:20px}
.scrip-head{font-size:10.5px;letter-spacing:.3em;color:#4a4034;text-align:center;margin-bottom:var(--s3)}
.scrip-amt{font-size:clamp(34px,7vw,64px);color:#7b2118;text-align:center;font-variation-settings:'wdth' 74,'wght' 900;margin-bottom:var(--s3)}
.scrip-row{display:flex;justify-content:space-between;gap:var(--s3);font-size:12px;padding:8px 0;border-top:1px solid #b9a97f}
.scrip-row span{letter-spacing:.2em;color:#4a4034}.scrip-row b{color:#1a1611;font-weight:700}
.scrip-note{font-size:10.5px;letter-spacing:.06em;color:#4a4034;margin-top:var(--s3);line-height:1.6}
.scrip-line{font-size:11px;letter-spacing:.24em;color:#7b2118;text-align:center;margin-top:var(--s3);font-weight:700}
#pay-receipt.strike .scrip{background:#e6f9fb;border-color:#0e2a2e}
#pay-receipt.strike .scrip-amt{color:#0e5a63}
#pay-receipt.strike .scrip-corner{color:#0e5a63}

/* ── the surface ──────────────────────────────────────────────────────── */
#surface{position:fixed;inset:0;z-index:10;overflow:auto;transition:opacity .7s;-webkit-overflow-scrolling:touch}
#surface.hidden{display:none}
.sky{position:fixed;inset:0;background:#050403 url('../assets/img/pithead.jpg') center 30% / cover no-repeat;z-index:0}
.sky::after{content:'';position:absolute;inset:0;background:
  linear-gradient(90deg,rgba(5,4,3,.92) 0%,rgba(5,4,3,.78) 42%,rgba(5,4,3,.25) 100%),
  linear-gradient(180deg,rgba(5,4,3,.2) 0%,rgba(5,4,3,0) 40%,rgba(5,4,3,.9) 100%)}
@media (max-width:900px){ .sky{background-position:68% 30%} .sky::after{background:linear-gradient(180deg,rgba(5,4,3,.55) 0%,rgba(5,4,3,.86) 55%,rgba(5,4,3,.97) 100%)} }
@media (max-width:1400px){ .sky{background-image:url('../assets/img/pithead_1600.jpg')} }
#rain{position:fixed;inset:0;width:100%;height:100%;z-index:1;pointer-events:none;opacity:.7}
.pithead{position:relative;z-index:2;max-width:560px;padding:max(28px,env(safe-area-inset-top)) 24px 120px max(24px,env(safe-area-inset-left));min-height:100%}
.board{margin-bottom:var(--s4)}
.board-top{font-size:10.5px;letter-spacing:.3em;color:var(--dust);margin-bottom:14px}
.ticker{font-size:clamp(64px,15vw,132px);color:var(--bone);text-shadow:0 0 40px rgba(0,0,0,.9);font-variation-settings:'wdth' 66,'wght' 900}
.strap{font-family:'Plex Mono',monospace;font-size:12px;letter-spacing:.24em;color:var(--lamp);margin-top:12px}
.rules{display:grid;gap:8px;font-size:12px;letter-spacing:.02em;color:#cfc4ae;line-height:1.55;margin-bottom:var(--s4);
  border-left:2px solid var(--brass);padding-left:14px}
.rules b{color:var(--bone);font-weight:700}
.rules > div > b:first-child{color:var(--brass-hi);margin-right:8px}
.notice{display:none;border:1px solid var(--red);background:rgba(214,75,42,.08);padding:14px 16px;margin-bottom:var(--s3)}
.notice.on{display:block}
.notice-k{font-size:10.5px;letter-spacing:.3em;color:var(--red);margin-bottom:6px}
.notice-t{font-family:'Plex Mono',monospace;font-size:12.5px;color:var(--bone);letter-spacing:.02em;line-height:1.55}
.ledger{background:rgba(10,8,6,.82);border:1px solid #3d3126;padding:var(--s3);margin-bottom:var(--s3);backdrop-filter:blur(6px);
  background-image:repeating-linear-gradient(180deg,transparent 0 27px,rgba(255,201,138,.05) 27px 28px)}
.ledger-h{font-size:11px;letter-spacing:.32em;color:var(--brass-hi)}
.ledger-p{font-size:13.5px;color:#cfc4ae;margin-top:8px;line-height:1.6}
.ledger-row{display:flex;gap:10px;align-items:stretch}
.ledger-row .btn{margin-top:0;white-space:nowrap}
.ledger-row .input{flex:1}
.ledger .btn.ghost{margin-top:var(--s2)}
.signed-row{display:none;font-size:11px;letter-spacing:.1em;color:var(--gas);margin-top:10px;word-break:break-all}
.ledger.signed .signed-row{display:block}
.ledger.signed .pb-input,.ledger.signed .lbl,.ledger.signed #url-err{display:none}
.lamproom{background:rgba(10,8,6,.82);border:1px solid #3d3126;padding:14px var(--s3);margin-bottom:var(--s3);backdrop-filter:blur(6px)}
.lr-k{font-size:10.5px;letter-spacing:.32em;color:var(--dust)}
.lr-status{font-size:12px;letter-spacing:.12em;color:var(--lamp);margin:6px 0 10px}
.lr-bar{height:4px;background:rgba(255,255,255,.06);position:relative;overflow:hidden}
.lr-bar i{position:absolute;left:0;top:0;bottom:0;width:0;background:var(--lamp);transition:width .3s}
.lamproom.done .lr-bar i{background:var(--gas)}
.lr-check{font-size:10px;letter-spacing:.2em;color:var(--dust);margin-top:10px}
.surface-foot{position:fixed;left:0;right:0;bottom:0;z-index:3;display:flex;justify-content:space-between;gap:var(--s3);flex-wrap:wrap;
  padding:12px max(24px,env(safe-area-inset-right)) max(12px,env(safe-area-inset-bottom)) max(24px,env(safe-area-inset-left));
  font-size:10.5px;letter-spacing:.24em;color:var(--mute);background:linear-gradient(180deg,transparent,rgba(5,4,3,.9))}
@media (max-width:640px){
  .surface-foot{display:none}
  .pithead{padding:max(20px,env(safe-area-inset-top)) 18px 60px 18px;max-width:none}
  .ticker{font-size:clamp(56px,19vw,90px)}
  .rules{font-size:11.5px}
  /* the paste-link row stacks: input full width, SIGN full width under it */
  .ledger-row{flex-wrap:wrap}
  .ledger-row .input{flex:1 1 100%;font-size:16px}   /* 16px stops iOS zoom-on-focus */
  .ledger-row .btn{flex:1 1 100%;text-align:center}
  .input{font-size:16px}
  .btn.enter{padding:20px 22px;font-size:15px}
  /* HUD: shrink the check tag, keep the lamp board clear of the thumb zone */
  .tag{font-size:13px;padding:6px 10px 5px}
  .ro b{font-size:15px}
  .lamps{gap:7px}
  .lamp{width:13px;height:18px}
}

@media (prefers-reduced-motion:reduce){ *{transition-duration:.01ms !important;animation-duration:.01ms !important} }

.scrip a{color:#7b2118;text-decoration:underline;text-underline-offset:2px}
#pay-receipt.strike .scrip a{color:#0e5a63}