:root{
  --vvw: 1vw;
  --vvh: 1vh;
  color-scheme:dark
}
html,body{
  height:100%;
  margin:0;
  font-family:system-ui,-apple-system,Segoe UI,Roboto,Arial;
  overflow:hidden;
  overscroll-behavior:none;
  touch-action:none
}
body{
  overflow:hidden;
  background:#05060a
}

.scene{
  position:fixed;
  left:0;
  top:0;
  width:calc(var(--vvw) * 100);
  height:calc(var(--vvh) * 100);
  background:
    radial-gradient(1200px 700px at 55% 40%, rgba(55,70,95,.18), rgba(6,7,11,.99)),
    radial-gradient(900px 600px at 25% 75%, rgba(95,70,110,.10), rgba(6,7,11,.99)),
    linear-gradient(180deg, rgba(8,10,16,1), rgba(5,6,10,1));
}

#fx,#vhs{
  position:absolute;
  inset:0;
  width:100%;
  height:100%;
  pointer-events:none
}
#vhs{
  mix-blend-mode:overlay;
  opacity:0
}

.scanlines{
  position:absolute;
  inset:0;
  pointer-events:none;
  opacity:0;
  background:repeating-linear-gradient(
    to bottom,
    rgba(0,0,0,0) 0px,
    rgba(0,0,0,0) 2px,
    rgba(0,0,0,.22) 3px
  );
  mix-blend-mode:multiply;
  filter:contrast(1.05);
  will-change:opacity,transform,background-position,background-size;
}

/* ===== PANEL ===== */
.panel{
  position:fixed;
  left:calc(6px + env(safe-area-inset-left, 0px));
  bottom:calc(6px + env(safe-area-inset-bottom, 0px));
  transform-origin:left top;
  display:grid;
  grid-template-columns:repeat(6,var(--col,118px));
  gap:14px;
  padding:14px 16px;
  background:rgba(0,0,0,.45);
  border:1px solid rgba(255,255,255,.12);
  border-radius:18px;
  backdrop-filter:blur(10px);
  box-shadow:0 10px 40px rgba(0,0,0,.45);
  user-select:none;
  touch-action:none;
}
.panel.size-0{transform:scale(1)}
.panel.size-1{transform:scale(.72)}
.panel.size-2{transform:scale(var(--scale2,.45))}

.bar{
  grid-column:1/-1;
  display:grid;
  grid-template-columns:34px 1fr 34px;
  gap:10px;
  height:22px
}
.corner,.handle{
  height:22px;
  border-radius:10px;
  border:1px solid rgba(255,255,255,.1);
  background:rgba(0,0,0,.22);
}
.corner{
  width:34px;
  cursor:pointer
}
.handle{
  cursor:grab
}
.handle:active{
  cursor:grabbing
}

.slot{
  display:grid;
  justify-items:center
}
.label{
  font-size:11px;
  margin-top:8px;
  opacity:.85
}
.value{
  font-size:11px;
  opacity:.65
}

.knob{
  width:76px;
  height:76px;
  border-radius:50%;
  background:
    radial-gradient(circle at 30% 30%, rgba(255,255,255,.16), rgba(255,255,255,.03) 55%, rgba(0,0,0,.55) 72%),
    radial-gradient(circle at 50% 60%, rgba(0,0,0,.85), rgba(0,0,0,.25));
  border:1px solid rgba(255,255,255,.18);
  position:relative;
  cursor:grab;
  touch-action:none
}
.knob:active{
  cursor:grabbing
}
.tick{
  position:absolute;
  left:50%;
  top:50%;
  width:2px;
  height:28px;
  background:rgba(230,240,255,.92);
  transform-origin:50% 100%;
  transform:translate(-50%,-100%) rotate(0deg)
}

.toggle{
  width:62px;
  height:30px;
  border-radius:999px;
  background:rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.16);
  cursor:pointer;
  position:relative
}
.toggle i{
  position:absolute;
  top:2px;
  left:2px;
  width:26px;
  height:26px;
  border-radius:50%;
  background:rgba(230,240,255,.8);
  transition:transform .15s
}
.toggle[data-on="1"] i{
  transform:translateX(32px)
}
@media(max-width:640px){
  .panel{--col:112px}
}

/* ===== LOGO (GLITCH A–E) ===== */
:root{
  --bg:#000;
  --fg:#fff;

  --x:calc(16px + env(safe-area-inset-left, 0px));
  --y:calc(16px + env(safe-area-inset-top, 0px));
  --size:clamp(44px, 8vw, 86px);

  --mag:rgba(255, 0, 200, .92);
  --cyn:rgba(0, 220, 255, .92);
  --ylw:rgba(255, 230, 0, .55);
  --grn:rgba(80, 255, 60, .35);
  --vio:rgba(170, 90, 255, .55);

  --blur:.18px;
  --split:10px;
  --tear:22px;
  --micro:0.9px;

  --lineOp:.35;
  --lineStep:10px;
  --lineW:1px;

  --scan:.22;
  --grain:.14;

  --bright:1.03;
  --contrast:1.18;

  --d_rgb:10px;
  --d_scan:0.35;
  --d_grain:0.20;

  --activeOpacity:0.92;
  --ghostFade:0.08;

  --c_speed:1.0;
  --c_gx:12;
  --c_gy:7;
  --c_sliceN:3;
}

#logo{
  position:absolute;
  left:var(--x);
  top:var(--y);
  font-family:"Press Start 2P", ui-monospace, monospace;
  font-size:var(--size);
  letter-spacing:.06em;
  line-height:1;
  user-select:none;
  white-space:nowrap;
  cursor:pointer;
  -webkit-font-smoothing:none;
  font-smooth:never;
  filter:brightness(var(--bright)) contrast(var(--contrast));
  transform:translateZ(0);
  z-index:30;
}

.layer{
  position:absolute;
  inset:0;
  pointer-events:none;
  mix-blend-mode:screen;
  filter:blur(var(--blur));
  opacity:0;
  will-change:transform,clip-path,filter,opacity,background-position;
}

.base{
  position:relative;
  display:inline-block;
  color:var(--fg);
  text-shadow:0 0 18px rgba(255,255,255,.10);
  pointer-events:auto;
}

.gA{ color:var(--mag); }
.gB{ color:var(--cyn); }
.gC{ color:var(--ylw); }
.gD{ color:var(--grn); }
.gV{ color:var(--vio); }

.lines{
  color:transparent;
  background:
    repeating-linear-gradient(
      to bottom,
      rgba(255,255,255,0) 0px,
      rgba(255,255,255,0) calc(var(--lineStep) - var(--lineW)),
      rgba(255,255,255,var(--lineOp)) calc(var(--lineStep) - var(--lineW)),
      rgba(255,255,255,var(--lineOp)) var(--lineStep)
    );
  -webkit-background-clip:text;
  background-clip:text;
  filter:blur(.12px);
  opacity:0;
}

.scan{
  color:transparent;
  background:
    repeating-linear-gradient(
      to bottom,
      rgba(255,255,255,0.07) 0px,
      rgba(255,255,255,0.07) 1px,
      rgba(0,0,0,0) 3px,
      rgba(0,0,0,0) 6px
    );
  -webkit-background-clip:text;
  background-clip:text;
  mix-blend-mode:overlay;
  opacity:0;
  filter:blur(.05px);
}

.grain{
  color:transparent;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='240' height='240'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='240' height='240' filter='url(%23n)' opacity='.35'/%3E%3C/svg%3E");
  background-size:240px 240px;
  -webkit-background-clip:text;
  background-clip:text;
  mix-blend-mode:soft-light;
  opacity:0;
  filter:blur(.12px);
}

/* streak bars around */
#streaks{
  position:absolute;
  inset:-16px;
  pointer-events:none;
  opacity:0;
  mix-blend-mode:screen;
  overflow:visible;
  filter:blur(.12px);
}
.streak{
  position:absolute;
  left:-30%;
  width:160%;
  height:1px;
  background:rgba(255,255,255,.55);
  opacity:0;
  transform:translateX(0);
  will-change:transform,opacity;
}

/* mobile */
@media (max-width:520px){
  :root{
    --size:clamp(36px, 12vw, 56px);
  }
}

/* panel stays above */
.panel{ z-index:60; }

/* ===== GLITCH EXPRESS stage overlay ===== */
#panel{display:none !important;}

/* countdown */
#sessionText{
  position:fixed;
  left:50%;
  transform:translateX(-50%);
  bottom:calc(132px + env(safe-area-inset-bottom, 0px));
  z-index:10000;
  font-family:"Press Start 2P", ui-monospace, monospace;
  font-size:10px;
  line-height:1.25;
  letter-spacing:.10em;
  color:#fff;
  text-shadow:0 0 12px rgba(255,255,255,.30), 0 0 28px rgba(255,255,255,.16);
  pointer-events:none;
  max-width:92vw;
  white-space:normal;
  text-align:center;
  opacity:0;
  transition:opacity .18s ease;
}
#sessionText.show{opacity:1;}

/* HUD */
#hud{
  position:fixed;
  left:50%;
  transform:translateX(-50%);
  bottom:calc(12px + env(safe-area-inset-bottom, 0px));
  width:calc(100vw - 20px);
  max-width:640px;
  min-height:88px;
  padding:14px 12px calc(18px + env(safe-area-inset-bottom, 0px)) 12px;
  box-sizing:border-box;
  display:block;
  background:rgba(0,0,0,.96);
  border:2px solid rgba(255,255,255,.5);
  border-radius:16px;
  box-shadow:0 10px 28px rgba(0,0,0,.5);
  z-index:9999;
  pointer-events:none;
  white-space:normal;
  overflow:visible;
  font-family:"Press Start 2P", ui-monospace, monospace;
  font-size:9px;
  line-height:1.55;
  letter-spacing:.04em;
  color:#fff;
  text-shadow:0 0 8px rgba(255,255,255,.24);
}

#hud span{
  margin:0 12px;
  opacity:.85;
}

#hud .countdown{
  color:#fff;
  font-weight:bold;
}

@media (max-width:520px){
  #hud{
    width:calc(100vw - 16px);
    min-height:96px;
    padding:12px 10px calc(20px + env(safe-area-inset-bottom, 0px)) 10px;
    bottom:calc(8px + env(safe-area-inset-bottom, 0px));
    font-size:8.5px;
    line-height:1.6;
  }

  #sessionText{
    bottom:calc(144px + env(safe-area-inset-bottom, 0px));
    font-size:9.5px;
  }
}

/* FLIP */
body.flip-stage{
  animation:stageFlipHard .28s ease;
}

@keyframes stageFlipHard{
  0%{
    transform:scaleX(1);
    filter:brightness(1);
  }
  40%{
    transform:scaleX(0.02);
    filter:brightness(1.4) contrast(1.3);
  }
  55%{
    transform:scaleX(-0.02);
    filter:brightness(1.4) contrast(1.3);
  }
  100%{
    transform:scaleX(1);
    filter:brightness(1);
  }
}