/* --------------------------------------------------------------------------
   2. BASE & CANVAS
   -------------------------------------------------------------------------- */
* {
  box-sizing: border-box;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font-sans);
  background-color: var(--bg);
  color: var(--text);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  transition: background-color 300ms ease, color 300ms ease;
}

/* Ambient Container Layer */
.ambient-container {
  position: fixed;
  inset: 0;
  width: 100vw;
  height: 100vh;
  pointer-events: none;
  z-index: 0;
  overflow: hidden;
}

/* Native WebGL Canvas Layer */
.ambient-canvas {
  position: fixed;
  inset: 0;
  width: 100vw;
  height: 100vh;
  pointer-events: none;
  z-index: 0;
  opacity: 0.85;
}

/* Atmospheric Glow Orbs */
.ambient {
  position: fixed;
  border-radius: 999px;
  filter: blur(60px);
  opacity: 0.45;
  pointer-events: none;
  z-index: 1;
}

.ambient-one {
  width: 32rem;
  height: 32rem;
  top: -6rem;
  right: -8rem;
  background: var(--card-glow-today);
}

.ambient-two {
  width: 28rem;
  height: 28rem;
  bottom: -6rem;
  left: -6rem;
  background: var(--card-glow-completed);
}

/* Custom Scrollbar */
::-webkit-scrollbar {
  width: 7px;
  height: 7px;
}

::-webkit-scrollbar-track {
  background: var(--scrollbar-track);
}

::-webkit-scrollbar-thumb {
  background: var(--scrollbar-thumb);
  border-radius: var(--radius-pill);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--muted);
}

@supports (scrollbar-color: auto) {
  * {
    scrollbar-color: var(--scrollbar-thumb) var(--scrollbar-track);
    scrollbar-width: thin;
  }
}