/* FLUXBOUND (templates/fluxbound.html, static/fluxbound.js). The stage keeps
   the game's 9:16 shape and the window's height, so a run needs no scrolling;
   the menus, the score and the meter sit over the canvas. */
.fx-page{padding:var(--s4) 0;background:radial-gradient(900px 520px at 80% 0%,rgba(54,226,240,.08),transparent 60%),var(--bg);}
/* The game's column is as wide as the stage: 9:16 of the window's height, at most 428px. */
:root{--fx-w:min(428px,calc((100svh - 104px) * 9 / 16));}
.fx-layout{display:grid;grid-template-columns:minmax(0,1fr) var(--fx-w);gap:var(--s5);align-items:center;}
.fx-side h1{font-size:clamp(34px,4.2vw,50px);line-height:1.05;letter-spacing:-.03em;font-weight:800;margin-top:var(--s2);
  background:linear-gradient(90deg,#1BB8C8,#7C5CE0);-webkit-background-clip:text;background-clip:text;color:transparent;}
.fx-side .lede{margin-top:var(--s2);}
.fx-how{margin:var(--s3) 0 0;padding:0;list-style:none;display:grid;gap:10px;max-width:30rem;}
.fx-how li{position:relative;padding-left:22px;font-size:15px;line-height:1.55;color:var(--text-2);}
.fx-how li::before{content:"";position:absolute;left:2px;top:.6em;width:8px;height:8px;border-radius:2px;transform:rotate(45deg);
  background:linear-gradient(135deg,#36E2F0,#A57CFF);}
.fx-side kbd{display:inline-block;min-width:22px;padding:1px 6px;border:1px solid var(--border-strong,var(--border));
  border-bottom-width:2px;border-radius:5px;font:700 12px/1.5 ui-monospace,Menlo,Consolas,monospace;text-align:center;background:var(--surface);}

.fx-stage{position:relative;width:100%;aspect-ratio:9/16;min-width:260px;
  border-radius:20px;overflow:hidden;background:#050A18;color:#E8F2FF;
  box-shadow:0 30px 70px -20px rgba(5,10,24,.75),0 0 0 1px rgba(124,203,209,.18),0 0 60px -10px rgba(54,226,240,.25);
  font-family:Manrope,system-ui,sans-serif;user-select:none;-webkit-user-select:none;touch-action:manipulation;}
.fx-canvas{position:absolute;inset:0;display:block;margin:auto;outline:none;touch-action:none;cursor:pointer;}
.fx-canvas:focus-visible{box-shadow:inset 0 0 0 2px rgba(54,226,240,.7);}

/* Screens over the canvas. */
.fx-screen{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;
  padding:24px;text-align:center;z-index:3;}
.fx-screen[hidden]{display:none;}
.fx-title{background:linear-gradient(180deg,rgba(5,10,24,.35),rgba(5,10,24,.82) 55%);justify-content:safe center;overflow-y:auto;}
.fx-logo{margin:0;font-weight:800;font-size:clamp(34px,10vw,46px);letter-spacing:.06em;line-height:1;
  color:#E8FBFF;text-shadow:0 0 18px rgba(54,226,240,.65),0 0 42px rgba(165,124,255,.45);}
.fx-logo span{color:#A57CFF;text-shadow:0 0 18px rgba(165,124,255,.8);}
.fx-tag{margin:0;font-size:13px;letter-spacing:.14em;text-transform:uppercase;color:#8FB4D0;}
.fx-bests{display:flex;gap:28px;margin-top:8px;}
.fx-bests div{display:grid;gap:2px;}
.fx-bests small{font-size:10.5px;letter-spacing:.12em;text-transform:uppercase;color:#7C93AE;}
.fx-bests strong{font-size:24px;font-weight:800;font-variant-numeric:tabular-nums;color:#fff;}
.fx-modes{display:flex;gap:4px;padding:4px;border-radius:999px;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.08);}
.fx-modes button,.fx-toggles button{font:inherit;font-size:12.5px;font-weight:700;border:0;border-radius:999px;padding:8px 14px;
  background:transparent;color:#9FB4CC;cursor:pointer;min-height:36px;}
.fx-modes button[aria-pressed="true"]{background:linear-gradient(90deg,#36E2F0,#A57CFF);color:#06101F;}
.fx-play{font:inherit;font-weight:800;font-size:17px;letter-spacing:.06em;text-transform:uppercase;border:0;border-radius:14px;
  padding:14px 44px;min-height:52px;cursor:pointer;color:#04101C;background:linear-gradient(90deg,#36E2F0,#A57CFF);
  box-shadow:0 0 0 1px rgba(255,255,255,.2) inset,0 10px 30px -8px rgba(54,226,240,.7);transition:transform .15s,box-shadow .15s;}
.fx-play:hover,.fx-play:focus-visible{transform:translateY(-1px);box-shadow:0 0 0 1px rgba(255,255,255,.35) inset,0 14px 36px -8px rgba(165,124,255,.8);outline:none;}
.fx-ghost{font:inherit;font-weight:700;font-size:14px;border:1px solid rgba(255,255,255,.18);border-radius:12px;padding:10px 22px;
  min-height:44px;background:rgba(255,255,255,.04);color:#DCE8F6;cursor:pointer;}
.fx-ghost:hover,.fx-ghost:focus-visible{background:rgba(255,255,255,.1);outline:none;}
.fx-keys{margin:0;font-size:11.5px;color:#7C93AE;}
.fx-stage kbd{display:inline-block;min-width:20px;padding:0 5px;border-radius:4px;border:1px solid rgba(255,255,255,.18);
  background:rgba(255,255,255,.08);color:#E8F2FF;font:700 10.5px/1.6 ui-monospace,Menlo,Consolas,monospace;}
.fx-themes{display:flex;flex-wrap:wrap;justify-content:center;gap:6px;width:100%;max-width:330px;margin-top:6px;}
.fx-themes::before{content:"Theme";flex-basis:100%;font-size:10.5px;letter-spacing:.12em;text-transform:uppercase;color:#7C93AE;margin-bottom:2px;}
.fx-theme{flex:0 0 calc((100% - 12px) / 3);min-width:0;}
.fx-theme{display:grid;gap:3px;justify-items:center;padding:8px 4px;border-radius:10px;border:1px solid rgba(255,255,255,.08);
  background:rgba(255,255,255,.03);color:#DCE8F6;font:inherit;cursor:pointer;}
.fx-theme.on{border-color:rgba(54,226,240,.8);background:rgba(54,226,240,.08);}
.fx-theme:disabled{cursor:not-allowed;opacity:.45;}
.fx-swatch{width:42px;height:6px;border-radius:3px;}
.fx-theme-name{font-size:12px;font-weight:800;}
.fx-theme small{font-size:9.5px;color:#7C93AE;line-height:1.25;overflow-wrap:anywhere;}
.fx-toggles{display:flex;flex-wrap:wrap;justify-content:center;gap:4px;}
.fx-toggles button{background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.08);font-size:11.5px;}
.fx-toggles button[aria-pressed="true"]{color:#E8FBFF;border-color:rgba(54,226,240,.5);}

.fx-count{pointer-events:none;}
.fx-count span{font-size:96px;font-weight:800;color:#fff;text-shadow:0 0 30px rgba(54,226,240,.9);animation:fx-pulse .6s ease-out infinite;}
@keyframes fx-pulse{from{transform:scale(1.25);opacity:.4;}to{transform:scale(1);opacity:1;}}

.fx-panel{background:rgba(4,8,20,.78);backdrop-filter:blur(4px);-webkit-backdrop-filter:blur(4px);}
.fx-panel-title{margin:0;font-size:13px;font-weight:800;letter-spacing:.2em;text-transform:uppercase;color:#8FB4D0;}
.fx-mode-line{margin:0;font-size:11.5px;color:#7C93AE;}
.fx-final{margin:0;font-size:56px;font-weight:800;line-height:1;font-variant-numeric:tabular-nums;color:#fff;
  text-shadow:0 0 24px rgba(54,226,240,.55);}
.fx-newbest{margin:0;padding:5px 14px;border-radius:999px;font-size:12px;font-weight:800;letter-spacing:.12em;text-transform:uppercase;
  color:#06101F;background:linear-gradient(90deg,#FFE08A,#FF9A5C);animation:fx-glow 1.6s ease-in-out infinite alternate;}
.fx-newbest[hidden]{display:none;}
@keyframes fx-glow{from{box-shadow:0 0 0 rgba(255,200,120,0);}to{box-shadow:0 0 22px rgba(255,200,120,.7);}}
.fx-stats{display:grid;grid-template-columns:auto auto;gap:4px 18px;margin:6px 0 0;font-size:13px;text-align:left;}
.fx-stats dt{color:#7C93AE;}
.fx-stats dd{margin:0;font-weight:800;font-variant-numeric:tabular-nums;text-align:right;}
.fx-earned-title{margin:6px 0 0;font-size:10.5px;letter-spacing:.14em;text-transform:uppercase;color:#7C93AE;}
.fx-earned{list-style:none;margin:0 0 6px;padding:0;font-size:12.5px;color:#BFE9F0;display:grid;gap:2px;}
.fx-over .fx-play{margin-top:4px;}

/* The HUD: score and combo at the top, the meter at the bottom. */
.fx-hud{position:absolute;inset:0;z-index:2;pointer-events:none;}
.fx-hud[hidden]{display:none;}
.fx-hud-top{position:absolute;left:0;right:0;top:0;display:flex;justify-content:space-between;align-items:flex-start;padding:12px 14px;
  background:linear-gradient(180deg,rgba(4,8,20,.7),transparent);}
.fx-score{display:grid;}
.fx-score span{font-size:28px;font-weight:800;line-height:1;font-variant-numeric:tabular-nums;color:#fff;text-shadow:0 0 14px rgba(54,226,240,.5);}
.fx-score small{margin-top:4px;font-size:10px;font-weight:800;letter-spacing:.12em;text-transform:uppercase;color:#FFE08A;}
.fx-score small[hidden]{display:none;}
.fx-hud-right{display:flex;align-items:center;gap:10px;}
.fx-mult{font-size:16px;font-weight:800;font-variant-numeric:tabular-nums;color:#8FB4D0;transition:color .2s;}
.fx-mult.hot{color:#FFE08A;text-shadow:0 0 12px rgba(255,224,138,.6);}
.fx-time{font-size:12px;font-variant-numeric:tabular-nums;color:#7C93AE;}
.fx-icon{pointer-events:auto;font:inherit;font-size:11px;letter-spacing:-.1em;width:34px;height:34px;border-radius:10px;cursor:pointer;
  border:1px solid rgba(255,255,255,.18);background:rgba(255,255,255,.06);color:#E8F2FF;}
.fx-flux{pointer-events:auto;position:absolute;left:14px;right:14px;bottom:14px;display:flex;align-items:center;gap:10px;padding:8px 10px;
  border-radius:12px;border:1px solid rgba(255,255,255,.12);background:rgba(4,8,20,.6);color:#8FB4D0;font:inherit;cursor:pointer;}
.fx-flux-label{font-size:11px;font-weight:800;letter-spacing:.18em;white-space:nowrap;}
.fx-flux-track{flex:1;height:8px;border-radius:4px;background:rgba(255,255,255,.08);overflow:hidden;}
.fx-flux-bar{display:block;height:100%;transform-origin:left;transform:scaleX(0);background:linear-gradient(90deg,#36E2F0,#A57CFF);}
.fx-flux.ready{color:#fff;border-color:rgba(54,226,240,.8);box-shadow:0 0 18px rgba(54,226,240,.5);animation:fx-ready 1s ease-in-out infinite alternate;}
.fx-flux.ready .fx-flux-label::after{content:" READY";}
.fx-flux.surging{color:#fff;border-color:#fff;}
.fx-flux.surging .fx-flux-label::after{content:" SURGE";}
@keyframes fx-ready{to{box-shadow:0 0 28px rgba(165,124,255,.75);}}

/* Milestones, without stopping the run. */
.fx-toasts{position:absolute;left:0;right:0;top:64px;z-index:4;display:grid;justify-items:center;gap:6px;pointer-events:none;padding:0 12px;}
.fx-toast{padding:8px 14px;border-radius:999px;font-size:12.5px;font-weight:800;color:#06101F;text-align:center;
  background:linear-gradient(90deg,#E8FBFF,#CFC2FF);box-shadow:0 8px 24px rgba(0,0,0,.4);animation:fx-in .3s ease-out;transition:opacity .4s,transform .4s;}
.fx-toast.out{opacity:0;transform:translateY(-8px);}
@keyframes fx-in{from{opacity:0;transform:translateY(-8px);}}

@media (max-width:900px){
  .fx-layout{grid-template-columns:1fr;justify-items:center;gap:var(--s3);}
  .fx-side{width:100%;max-width:520px;}
  .fx-how,.fx-side .fine{display:none;}
  .fx-stage{width:min(100%,calc((100svh - 96px) * 9 / 16));max-width:428px;}
}
@media (prefers-reduced-motion:reduce){
  .fx-count span,.fx-newbest,.fx-flux.ready{animation:none;}
}