:root{
  /* ✅ LED size (fit cứng, không scale) */
  --w: 2560;
  --h: 1408;

  /* ✅ default background */
  --bg: url("../assets/bg.png");

  /* ===== POSITIONS (SINGLE CENTER LAYOUT) ===== */
  --left-name-x: 1280;
  --left-name-y: 250;

  /* NOTE dưới tên */
  --note-x: 1280;
  --note-y: 410;

  --roller-left-x: 1270;
  --roller-left-y: 680;

  /* ===== Digits ===== */
  --digit-w: 200;
  --digit-h: 200;
  --digit-gap: 17;
  --digits: 8;

  --font: "Segoe UI", "Helvetica Neue", Arial, sans-serif;
}

html, body{
  height: 100%;
  margin: 0;
  background: #000;
  overflow: hidden;
  font-family: var(--font);
}

.viewport{
  position: fixed;
  inset: 0;
  background: #000;
}

/* ✅ Stage fixed size, top-left (no scale) */
.stage{
  position: absolute;
  top: 0;
  left: 0;
  width: calc(var(--w) * 1px);
  height: calc(var(--h) * 1px);

  background-image: var(--bg);
  background-size: 100% 100%;
  background-repeat: no-repeat;
  background-position: center;
}

.glow{
  pointer-events: none;
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 50% 35%, rgba(255,220,120,.10), rgba(0,0,0,0) 55%);
  mix-blend-mode: screen;
}

/* Text */
.text{
  position: absolute;
  color: #ffe9b0;
  text-transform: uppercase;
  letter-spacing: 1px;
  text-shadow: 0 8px 18px rgba(0,0,0,.55);
  font-weight: 900;
  white-space: nowrap;
  transform: translateX(-50%);
  text-align: center;
}

/* NAME */
.name{
  font-size: 99px;
  line-height: 1.5;
  -webkit-text-stroke: 3px rgba(80,20,0,.35);
  max-width: 2200px;
  overflow: hidden;
  text-overflow: ellipsis;
  z-index: 5;
}

/* NOTE */
.note{
  font-size: 52px;
  letter-spacing: 0.5px;
  opacity: 0.95;
  -webkit-text-stroke: 2px rgba(60,15,0,.28);
  max-width: 2200px;
  overflow: hidden;
  text-overflow: ellipsis;
  z-index: 5;
}

/* Roller */
.roller{
  position: absolute;
  transform: translate(-50%, -50%);
  display: flex;
  align-items: center;
  gap: calc(var(--digit-gap) * 1px);
  filter: drop-shadow(0 16px 18px rgba(0,0,0,.45));
  z-index: 4;
}

.digit{
  width: calc(var(--digit-w) * 1px);
  height: calc(var(--digit-h) * 1px);
  overflow: hidden;
  border-radius: 18px;
  position: relative;
  background: rgba(255,255,255,0);
  contain: layout paint;
  transform: translateZ(0);
}

.strip{
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  will-change: transform;
  transform: translate3d(0,0,0);
  backface-visibility: hidden;
}

.num{
  height: calc(var(--digit-h) * 1px);
  display: grid;
  place-items: center;
  font-size: 170px;
  font-weight: 900;
  color: #000;
  text-shadow:
    0 2px 0 rgba(255,255,255,.6),
    0 10px 16px rgba(0,0,0,.22);
  background: rgba(255,255,255,0);
  transform: translate3d(0,0,0);
  backface-visibility: hidden;
}

.hidden{ opacity: 0; }