:root {
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
  --stage: var(--c-bg); /* Sfondo base per il canvas vuoto */
}

*, *::before, *::after { box-sizing: border-box; }
html, body { margin: 0; padding: 0; height: 100%; }

/* Scrollbar stile TypeShot */
.custom-scrollbar::-webkit-scrollbar { width: 4px; height: 4px; }
.custom-scrollbar::-webkit-scrollbar-track { background: transparent; }
.custom-scrollbar::-webkit-scrollbar-thumb { background: var(--c-track); border-radius: 2px; }
.custom-scrollbar::-webkit-scrollbar-thumb:hover { background: var(--c-muted); }

/* Focus accessibilità */
:focus-visible { outline: 2px solid var(--c-sec); outline-offset: 2px; }
button:focus:not(:focus-visible),
input:focus:not(:focus-visible),
textarea:focus:not(:focus-visible),
select:focus:not(:focus-visible) { outline: none; }

/* Rimuovi stili nativi per le select */
select { -webkit-appearance: none; appearance: none; }

/* Custom Range Sliders */
input[type="range"] { -webkit-appearance: none; appearance: none; background: transparent; }
input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none; appearance: none;
  height: 12px; width: 12px; border-radius: 50%;
  background: var(--c-white); cursor: pointer; margin-top: -5px;
}
input[type="range"]::-webkit-slider-runnable-track {
  width: 100%; height: 2px; cursor: pointer; background: var(--c-track);
}
input[type="range"]::-moz-range-track {
  width: 100%; height: 2px; cursor: pointer; background: var(--c-track); border: 0;
}
input[type="range"]::-moz-range-thumb {
  width: 12px; height: 12px; border-radius: 50%;
  background: var(--c-white); border: 0; cursor: pointer;
}
input[type="range"]:disabled { opacity: 0.3; cursor: not-allowed; }

/* Custom Color Inputs */
.color-input {
  -webkit-appearance: none; appearance: none;
  width: 28px; height: 28px; border: 1px solid var(--c-track);
  border-radius: 4px; padding: 0; cursor: pointer;
  background: none; flex-shrink: 0;
}
.color-input::-webkit-color-swatch-wrapper { padding: 2px; }
.color-input::-webkit-color-swatch { border: none; border-radius: 2px; }
.color-input::-moz-color-swatch { border: none; border-radius: 2px; }

/* Canvas Stage */
.canvas-stage { background: var(--c-bg); }

#canvasWrap {
  position: relative;
  box-shadow: 0 24px 48px -16px color-mix(in oklab, var(--ombra), transparent 80%);
  outline: 1px solid var(--c-border);
  display: flex; align-items: center; justify-content: center;
  min-height: 200px;
}
#canvasWrap canvas { display: block; position: relative; z-index: 10; }

/* Stato "empty" recuperato dal tuo primo progetto */
#canvasWrap.empty {
  background:
    radial-gradient(transparent 0 0) 0 0/1px 1px no-repeat,
    repeating-linear-gradient(0deg, color-mix(in oklab, var(--c-white), transparent 96%) 0 20px, transparent 20px 40px),
    repeating-linear-gradient(90deg, color-mix(in oklab, var(--c-white), transparent 96%) 0 20px, transparent 20px 40px),
    var(--stage);
}
#canvasWrap.empty::before {
  content: ""; position: absolute; inset: 10px;
  border: 1px dashed color-mix(in oklab, var(--c-white), transparent 75%);
  border-radius: 12px; pointer-events: none;
}

/* Toast Notifiche */
#toast {
  position: fixed; right: 14px; bottom: 14px; z-index: 60;
  background: var(--c-border); color: var(--c-primary); border: 1px solid var(--c-track);
  padding: 10px 12px; border-radius: 8px;
  opacity: 0; transform: translateY(8px);
  transition: opacity .2s, transform .2s;
  pointer-events: none; font-size: 13px; font-family: inherit;
}
#toast.show { opacity: 1; transform: translateY(0); }