/* Sảnh Slot: thân máy kim loại, phím in game, màn LCD hổ phách, núm chọn có nấc. */
:root{
  --gun:#2b2f33;--gun-d:#202326;--gun-l:#383d42;--alu:#b9bfc4;--alu-d:#9aa1a7;--bone:#e9e6df;--char:#24272a;
  --amber:#ffb000;--amber-d:#c08400;--scr:#1a1206;--orange:#ff5a1f;
  --din:"Barlow Condensed","Bahnschrift","Arial Narrow",sans-serif;
  --mono:"Cascadia Mono","Consolas","SF Mono","Roboto Mono",ui-monospace,monospace;
  color-scheme:dark;
}
*,*::before,*::after{box-sizing:border-box}
html{background:#141618;scroll-behavior:smooth;-webkit-text-size-adjust:100%;scrollbar-color:#4a5056 #17191c;scrollbar-width:thin}
::-webkit-scrollbar{width:10px;height:10px}
::-webkit-scrollbar-track{background:#17191c}
::-webkit-scrollbar-thumb{background:#4a5056;border:2px solid #17191c;border-radius:6px}
body{margin:0;min-height:100svh;font-family:var(--din);font-weight:500;color:var(--alu);background:radial-gradient(90% 60% at 50% 0%,#2a2e32,#141618 70%) fixed;-webkit-font-smoothing:antialiased;-webkit-tap-highlight-color:transparent}
::selection{background:var(--amber);color:#1a1206}
:focus-visible{outline:2px solid var(--amber);outline-offset:3px;border-radius:6px}
button{font:inherit;color:inherit}
[hidden]{display:none!important}
.sr{position:absolute;width:1px;height:1px;margin:0;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}.knob,.key,.kb-back{transition:none!important}}

/* thân máy: kim loại xước */
.dev{max-width:460px;min-height:100svh;margin:0 auto;padding:max(10px,env(safe-area-inset-top)) 16px max(24px,env(safe-area-inset-bottom));
  background:repeating-linear-gradient(0deg,rgba(255,255,255,.018) 0 1px,rgba(0,0,0,.02) 1px 2px),linear-gradient(180deg,#33383d,#2b2f33 30%,#26292d)}
@media (min-width:500px){.dev{margin-top:24px;border-radius:22px 22px 0 0;box-shadow:0 0 0 1px #111315,0 30px 60px -20px #000}}

/* mặt nhôm trên cùng, chữ in lụa */
.plate{display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:10px;min-height:56px;padding:6px 8px;border-radius:12px;color:var(--char);
  background:repeating-linear-gradient(0deg,rgba(255,255,255,.07) 0 1px,rgba(0,0,0,.05) 1px 2px),linear-gradient(180deg,#d3d8dc,#b9bfc4 45%,#a4abb1);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.7),inset 0 -1px 0 rgba(0,0,0,.2),0 4px 8px -2px rgba(0,0,0,.55)}
.silk-h{grid-column:2;display:flex;align-items:baseline;gap:8px;min-width:0;margin:0;font-size:17px;font-weight:700;line-height:1;letter-spacing:.16em;text-transform:uppercase;white-space:nowrap;color:#202326}
.silk-n{font-size:11px;font-weight:600;letter-spacing:.14em;color:#3c4247}
.kb-back{grid-column:1;display:inline-flex;align-items:center;gap:2px;height:40px;padding:0 10px 0 6px;border-radius:8px;font-size:15px;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:#202326;text-decoration:none;
  background:linear-gradient(180deg,#f4f2ed,#e2ded5);box-shadow:0 0 0 1px #6b7278,0 2px 0 #8b9298,0 3px 5px rgba(0,0,0,.35);transition:transform .07s,box-shadow .07s}
.kb-back:hover{background:linear-gradient(180deg,#fbfaf7,#ebe8e1)}
.kb-back:active{transform:translateY(1px);box-shadow:0 0 0 1px #6b7278,0 1px 0 #8b9298,0 1px 2px rgba(0,0,0,.35)}
.bal{grid-column:3;display:flex;flex-direction:column;align-items:flex-end;gap:3px;min-width:84px;padding:5px 8px 6px;border-radius:6px;background:var(--scr);box-shadow:inset 0 1px 4px #000,0 0 0 1px #6b7278}
.bal-l{font-family:var(--mono);font-size:11px;line-height:1;letter-spacing:.06em;white-space:nowrap;color:var(--amber-d)}
.bal .seg{display:block;width:auto;height:14px}
.bal.err .bal-l{color:#ff8a5a}

/* màn hình + núm */
.top{display:grid;grid-template-columns:1fr 96px;gap:10px;margin-top:14px}
.bezel{min-width:0;padding:8px;border-radius:14px;background:linear-gradient(180deg,#1b1d20,#121416);box-shadow:inset 0 2px 4px rgba(0,0,0,.7),0 1px 0 rgba(255,255,255,.08)}
.screen{display:flex;flex-direction:column;height:214px;padding:8px;border-radius:7px;overflow:hidden;background:radial-gradient(120% 90% at 50% 40%,#261a08,#1a1206 60%,#120c04);box-shadow:inset 0 0 18px rgba(0,0,0,.8)}
.scr-pic{position:relative;flex:1 1 auto;min-height:0;border-radius:3px;overflow:hidden;background:#2a1d08}
.scr-img{position:absolute;inset:0;background-size:cover;background-position:50% 45%}
.scr-name{margin:9px 0 0;overflow:hidden;font-family:var(--mono);font-size:14.5px;font-weight:700;line-height:1.25;white-space:nowrap;text-overflow:ellipsis;color:var(--amber)}
.scr-en{margin:2px 0 0;overflow:hidden;font-family:var(--mono);font-size:11px;line-height:1.3;white-space:nowrap;text-overflow:ellipsis;color:var(--amber-d)}
.scr-row{display:flex;align-items:center;gap:6px;margin-top:8px;font-family:var(--mono)}
.scr-k{font-size:11px;letter-spacing:.08em;text-transform:uppercase;color:var(--amber-d)}
.scr-v{margin-right:6px;font-size:14px;font-weight:700;font-variant-numeric:tabular-nums;color:var(--amber)}
.vb{display:inline-flex;align-items:flex-end;gap:2px;height:12px}
.vb i{display:block;width:4px;background:rgba(255,176,0,.2)}
.vb i:nth-child(1){height:5px}.vb i:nth-child(2){height:8px}.vb i:nth-child(3){height:12px}
.vb i.on{background:var(--amber)}
.scr-new{margin-left:auto;padding:1px 6px;border-radius:2px;font-size:11px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:#1a1206;background:var(--amber)}
.screen.blank .scr-name{white-space:normal}

.knobcol{display:flex;flex-direction:column;align-items:center;justify-content:space-between;padding:6px 0 4px}
.silk{margin:0;font-size:11px;font-weight:600;letter-spacing:.14em;text-transform:uppercase;color:var(--alu)}
.kn{position:relative;width:96px;height:96px}
.ticks{position:absolute;inset:0;width:100%;height:100%}
.ticks line{stroke:#6f777e;stroke-width:1.6;stroke-linecap:round}
.ticks line.on{stroke:var(--amber);stroke-width:2.4}
.knob{position:absolute;inset:13px;border-radius:50%;cursor:grab;touch-action:none;
  background:repeating-conic-gradient(#40464c 0 4deg,#1f2327 4deg 8deg);
  box-shadow:0 0 0 1px #0d0f10,0 4px 6px rgba(0,0,0,.6),0 10px 14px -4px rgba(0,0,0,.6),inset 0 1px 0 rgba(255,255,255,.12);
  transition:transform .11s cubic-bezier(.3,1.5,.5,1)}
.knob:active{cursor:grabbing}
.knob-cap{position:absolute;inset:8px;border-radius:50%;background:radial-gradient(circle at 38% 30%,#737b82,#454b51 55%,#2e3236);box-shadow:inset 0 1px 0 rgba(255,255,255,.25),0 1px 2px rgba(0,0,0,.6)}
.ind{position:absolute;left:50%;top:4px;width:3px;height:14px;margin-left:-1.5px;border-radius:2px;background:var(--bone)}
.knob:focus-visible{outline:2px solid var(--amber);outline-offset:6px;border-radius:50%}
.idxw{display:flex;align-items:flex-end;gap:4px;padding:6px 8px;border-radius:6px;background:var(--scr);box-shadow:inset 0 1px 4px #000,0 0 0 1px #464c52}
.idxw .seg{display:block;width:auto;height:26px}
.of{padding-bottom:2px;font-family:var(--mono);font-size:11px;font-variant-numeric:tabular-nums;color:var(--amber-d)}

/* bàn phím */
.pad{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;margin-top:16px;padding:10px;border-radius:16px;background:linear-gradient(180deg,#1c1f22,#17191c);box-shadow:inset 0 2px 5px rgba(0,0,0,.7),0 1px 0 rgba(255,255,255,.06)}
.key{position:relative;display:block;aspect-ratio:1;padding:3px 4px 7px;border:0;border-radius:11px;cursor:pointer;user-select:none;-webkit-user-select:none;text-decoration:none;color:inherit;
  background:linear-gradient(180deg,#cfcac0,#b9b3a7);box-shadow:0 0 0 1px #101214,0 2px 2px rgba(0,0,0,.5),0 7px 10px -3px rgba(0,0,0,.6);transition:transform .07s,box-shadow .07s}
.key:focus-visible{outline-offset:3px;border-radius:12px}
.cap{position:relative;display:block;height:100%;border-radius:8px;background:radial-gradient(110% 85% at 50% 28%,#f6f4ef,#e9e6df 55%,#dcd8ce);box-shadow:inset 0 1px 0 #fff,inset 0 -1px 2px rgba(80,70,50,.25)}
.key:hover .cap{background:radial-gradient(110% 85% at 50% 28%,#fbfaf7,#f0ede7 55%,#e3dfd6)}
.key[aria-pressed="true"]{transform:translateY(2px);box-shadow:0 0 0 1px #101214,0 1px 1px rgba(0,0,0,.5),0 3px 5px -2px rgba(0,0,0,.6)}
.key:active{transform:translateY(3px);box-shadow:0 0 0 1px #101214,0 0 1px rgba(0,0,0,.5)}
.print{position:absolute;left:50%;top:52%;width:64%;aspect-ratio:1;border-radius:22%;transform:translate(-50%,-50%);background-size:107%;background-position:50% 50%;background-color:#e9e6df;background-blend-mode:multiply;filter:saturate(.92)}
.leg{position:absolute;left:6px;top:4px;font-family:var(--mono);font-size:11px;font-weight:700;line-height:1;color:#3a3d40}
.kled{position:absolute;right:6px;top:5px;width:6px;height:6px;border-radius:50%;background:#5b4a2a;box-shadow:inset 0 0 0 1px rgba(0,0,0,.35)}
.key[aria-pressed="true"] .kled{background:radial-gradient(circle at 40% 35%,#fff0c2,#ffb000 55%,#c07a00)}
.k-play{grid-column:span 2;aspect-ratio:auto;background:linear-gradient(180deg,#d9471a,#b83a12)}
.k-play .cap{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;padding:0 10px;background:radial-gradient(110% 90% at 50% 25%,#ff8a5a,#ff5a1f 55%,#ef4f15);box-shadow:inset 0 1px 0 rgba(255,220,200,.7),inset 0 -1px 2px rgba(120,30,0,.35)}
.k-play:hover .cap{background:radial-gradient(110% 90% at 50% 25%,#ff9a6e,#ff6630 55%,#f25a20)}
.k-play.going{cursor:progress;transform:translateY(3px);box-shadow:0 0 0 1px #101214,0 0 1px rgba(0,0,0,.5)}
.play-l{display:inline-flex;align-items:center;gap:6px;font-size:26px;font-weight:700;line-height:1;letter-spacing:.12em;text-transform:uppercase;color:#1d1f21}
.play-g{max-width:100%;overflow:hidden;font-family:var(--mono);font-size:11px;line-height:1.2;white-space:nowrap;text-overflow:ellipsis;color:#3a1608}
.k-rnd .cap{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;color:#2a2d30}
.k-rnd[disabled]{cursor:progress}
.k-rnd[disabled] .cap{color:#6b6f73}
.leg-s{font-family:var(--mono);font-size:11px;letter-spacing:0;text-transform:uppercase}

/* bảng thông số */
.spec{margin-top:34px;padding-top:22px;border-top:1px solid #3d4247}
.spec h2{margin:0;font-size:20px;font-weight:700;line-height:1.1;letter-spacing:.14em;text-transform:uppercase;color:#d6dadd}
.spec-sub{margin:6px 0 14px;font-size:15px;line-height:1.4;color:var(--alu)}
.sp-head,.sp-row{display:grid;grid-template-columns:28px 1fr auto 30px;align-items:center;gap:10px}
.sp-head{padding:0 6px 6px;font-family:var(--mono);font-size:11px;letter-spacing:.08em;text-transform:uppercase;color:var(--alu-d)}
.sp{margin:0;padding:0;list-style:none}
.sp-row{width:100%;min-height:48px;padding:6px;border:0;border-bottom:1px solid #34393e;cursor:pointer;text-align:left;color:#d6dadd;background:none}
.sp-row:hover{background:#30353a}
.sp-row[aria-current="true"]{background:#33302a}
.sp-n{font-family:var(--mono);font-size:12px;font-variant-numeric:tabular-nums;color:var(--alu-d)}
.sp-row[aria-current="true"] .sp-n{color:var(--amber)}
.sp-name{display:flex;align-items:center;gap:8px;min-width:0;font-size:17px;font-weight:600;line-height:1.25}
.sp-name span{overflow:hidden;white-space:nowrap;text-overflow:ellipsis}
.sp-new{flex:none;padding:1px 5px;border-radius:2px;font-family:var(--mono);font-size:11px;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:#1a1206;background:#e8c27a}
.sp-max{font-family:var(--mono);font-size:13px;font-variant-numeric:tabular-nums;color:#e8c27a}
.sp-row .vb i{background:rgba(255,176,0,.18)}
.sp-row .vb i.on{background:#e8c27a}

.dev.empty .pad,.dev.empty .spec,.dev.empty .knobcol{display:none}
.dev.empty .top{grid-template-columns:1fr}
.nojs{max-width:460px;margin:16px auto;padding:0 16px;font-size:16px;color:var(--amber)}

.toast{position:fixed;left:50%;bottom:max(20px,env(safe-area-inset-bottom));z-index:9;width:max-content;max-width:min(92vw,400px);padding:12px 16px;border-radius:8px;pointer-events:none;font-family:var(--mono);font-size:13.5px;line-height:1.4;color:var(--amber);background:var(--scr);box-shadow:0 0 0 1px #464c52,0 12px 24px -8px rgba(0,0,0,.8);opacity:0;transform:translate(-50%,12px);transition:opacity .2s,transform .3s cubic-bezier(.16,1,.3,1)}
.toast.show{opacity:1;transform:translate(-50%,0)}
@media (prefers-reduced-motion:reduce){.toast{transition:none}}

/* máy bàn rộng: màn hình, núm, phím bên trái; bảng thông số chìm trong thân máy bên phải */
@media (min-width:960px){
  .dev{max-width:1060px;min-height:0;margin:28px auto;padding:16px 20px 22px;border-radius:22px}
  .body{display:grid;grid-template-columns:500px 1fr;grid-template-areas:"top spec" "pad spec";column-gap:20px;align-items:start}
  .top{grid-area:top;grid-template-columns:1fr 120px;gap:12px}
  .screen{height:244px}
  .scr-name{font-size:16px}
  .kn{width:120px;height:120px}
  .knob{inset:16px}
  .pad{grid-area:pad}
  .spec{grid-area:spec;margin-top:14px;padding:16px 16px 10px;border-top:0;border-radius:16px;background:linear-gradient(180deg,#1c1f22,#17191c);box-shadow:inset 0 2px 5px rgba(0,0,0,.7),0 1px 0 rgba(255,255,255,.06)}
  .sp-row{min-height:44px}
  .sp-row:hover{background:#262a2e}
  .sp-row[aria-current="true"]{background:#2e2a22}
  .dev.empty .body{grid-template-columns:1fr}
}