@property --spt-r { syntax: '<length>'; inherits: true; initial-value: 260px; }
.spt { --spt-fs: 120px; --spt-trk: .06em; --spt-r: 260px; margin: 0; }
.spt-stage {
  --x: 35%; --y: 50%;
  position: relative; overflow: hidden; isolation: isolate;
  min-height: clamp(360px, 52vh, 560px);
  background: var(--spt-bg); color: var(--spt-ink);
  display: grid; transition: background-color .6s var(--ease), color .6s var(--ease);
  --spt-glow: rgba(246, 238, 233, .06);
}
.spt-stage.spt-light { --spt-glow: rgba(68, 28, 71, .05); }
.spt-hint { position: absolute; left: 16px; top: 14px; z-index: 3; color: inherit; opacity: .45; pointer-events: none; }
.spt-glow {
  position: absolute; left: 0; top: 0; z-index: 0; pointer-events: none;
  width: 620px; height: 240px; margin: -120px 0 0 -310px;
  transform: translate(var(--x), calc(var(--y) + 70px));
  background: radial-gradient(ellipse at center, var(--spt-glow), transparent 68%);
  transition: opacity .6s var(--ease);
}
.spt-layer { position: absolute; inset: 0; display: grid; place-items: center; padding: 56px 20px 40px; }
.spt-layer-base { z-index: 1; pointer-events: none; }
.spt-layer-lit {
  z-index: 2; pointer-events: none; transition: --spt-r .7s var(--ease);
  -webkit-mask-image: radial-gradient(circle var(--spt-r) at var(--x) var(--y), #000 0, #000 30%, rgba(0,0,0,.55) 62%, transparent 100%);
          mask-image: radial-gradient(circle var(--spt-r) at var(--x) var(--y), #000 0, #000 30%, rgba(0,0,0,.55) 62%, transparent 100%);
}
.spt-text {
  display: block; max-width: 100%; min-height: 1.1em; text-align: center; outline: none;
  font-family: var(--font-marquee); font-weight: 400; line-height: 1.08;
  font-size: min(var(--spt-fs), 26vw); letter-spacing: var(--spt-trk);
  white-space: pre-wrap; overflow-wrap: anywhere; word-break: normal;
  transform-origin: 50% 80%; transition: transform .6s var(--ease);
  caret-color: var(--spt-ink); -webkit-user-select: text; user-select: text;
}
.spt-lit { pointer-events: auto; cursor: text; color: var(--spt-ink); }
.spt-base { opacity: .22; color: var(--spt-ink); }
.spt-lit:empty::before { content: attr(data-ph); opacity: .3; }
.spt-haas .spt-text { font-family: var(--font-display); font-weight: 500; letter-spacing: calc(var(--spt-trk) - .08em); }
.spt-slant .spt-text { transform: skewX(-10.7deg); }
.spt-off { --spt-r: 2400px; }
.spt-off .spt-glow, .spt-off .spt-base { opacity: 0; }
.spt-base { transition: opacity .6s var(--ease); }

.spt-ctl {
  display: grid; grid-template-columns: repeat(12, 1fr); gap: 20px 24px;
  padding: 20px 0 0; margin-top: 0; border-top: 1px solid var(--hair);
}
.spt-grp { grid-column: span 4; min-width: 0; }
.spt-rng { grid-column: span 6; min-width: 0; display: block; }
.spt-lab { display: flex; justify-content: space-between; gap: 12px; margin-bottom: 10px; }
.spt-lab b { font-weight: 500; letter-spacing: .04em; color: var(--ink); }
.spt-pills { display: flex; gap: 6px; flex-wrap: wrap; }
.spt-pill {
  display: inline-flex; align-items: center; gap: 8px; padding: 8px 12px; border: 1px solid var(--hair);
  font: 500 11px/1.2 var(--font-body); letter-spacing: .08em; text-transform: uppercase;
  color: var(--ink); background: none; cursor: pointer; transition: background .3s var(--ease), color .3s var(--ease), border-color .3s var(--ease);
}
.spt-pill i { width: 9px; height: 9px; border: 1px solid var(--hair); display: inline-block; flex: none; }
.spt-pill[aria-pressed="true"] { background: var(--ink); color: var(--paper); border-color: var(--ink); }
.spt-pill:focus-visible, .spt-rng input:focus-visible { outline: 1px solid var(--ink); outline-offset: 3px; }
.spt-rng input { -webkit-appearance: none; appearance: none; width: 100%; height: 22px; background: transparent; margin: 0; cursor: pointer; }
.spt-rng input::-webkit-slider-runnable-track { height: 1px; background: color-mix(in srgb, var(--ink) 50%, transparent); }
.spt-rng input::-moz-range-track { height: 1px; background: color-mix(in srgb, var(--ink) 50%, transparent); }
.spt-rng input::-webkit-slider-thumb { -webkit-appearance: none; width: 14px; height: 14px; margin-top: -7px; background: var(--ink); border: 0; border-radius: 0; }
.spt-rng input::-moz-range-thumb { width: 14px; height: 14px; background: var(--ink); border: 0; border-radius: 0; }

@media (max-width: 900px) { .spt-grp { grid-column: span 6; } }
@media (max-width: 640px) {
  .spt { --spt-r: 170px; }
  .spt-grp, .spt-rng { grid-column: 1 / -1; }
  .spt-layer { padding: 48px 12px 28px; }
}