/* main canvas area */
main {
  min-height: 100dvh;
  background: var(--bg-0);
  position: relative;
  z-index: 0;
}

/* center fixed container */
.center-fixed {
  position: fixed;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  width: calc(var(--big-size) + 220px);
  height: calc(var(--big-size) + 220px);
  pointer-events: none;
  transition: transform 420ms cubic-bezier(0.2, 0.9, 0.2, 1);
  z-index: 5;
}
.center-fixed.mobile-shift-up {
  transform: translate(-50%, calc(-50% - (var(--panel-height) / 2) + 48px));
}
.center-fixed.shift-left {
  transform: translate(calc(-50% - var(--shift)), -50%);
}
.center-fixed.shift-right {
  transform: translate(calc(-50% + var(--shift)), -50%);
}

/* big circle */
#big {
  --diam: var(--big-size);
  width: var(--diam);
  height: var(--diam);
  border-radius: 50%;
  background: var(--bg-1);
  box-shadow: 0 10px 40px rgba(2, 6, 23, 0.75),
    inset 0 2px 14px rgba(255, 255, 255, 0.02);
  margin: auto;
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 28px;
  pointer-events: auto;
  color: var(--text);
  transition: background 400ms ease;
  overflow: hidden;
}

.content {
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding: 8px;
}
.title {
  font-size: 1.6rem;
  font-weight: 700;
  letter-spacing: 0.2px;
}
.desc {
  font-size: 1rem;
  color: var(--muted);
  max-width: 72%;
}

.hero-img {
  width: 12rem;
  height: 12rem;
  border-radius: 16px;
  box-shadow: 0 12px 30px rgba(2, 6, 23, 0.06);
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--card-bg);
  overflow: hidden;
}
.hero-img img {
  max-width: 100%;
  max-height: 100%;
  display: block;
}
.hero-img svg {
  width: 86%;
  height: 86%;
  fill: currentColor;
  color: var(--muted);
}

/* orb */
#orb {
  --size: var(--orb-size);
  width: var(--size);
  height: var(--size);
  border-radius: 50%;
  background: linear-gradient(180deg, var(--accent-0), var(--accent-1));
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 6px 18px rgba(2, 6, 23, 0.12);
  pointer-events: auto;
  cursor: default;
  z-index: 1;
}

/* markers */
#markers {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  width: 100%;
  height: 100%;
  pointer-events: none;
}
.marker {
  position: absolute;
  left: 50%;
  top: 50%;
  width: var(--marker-size);
  height: var(--marker-size);
  border-radius: 50%;
  background: var(--marker-color);
  transform-origin: center center;
  transition: transform 220ms ease, background 220ms ease, opacity 220ms ease;
  opacity: 0.95;
  box-shadow: 0 4px 10px rgba(2, 6, 23, 0.12);
}
.marker.active {
  background: var(--marker-active-color);
  transform: scale(1.5);
  opacity: 1;
  box-shadow: 0 8px 18px rgba(0, 0, 0, 0.12);
}