/* ============================================================
   Estrusione — style.css
   Base design system + specifiche di progetto
   ============================================================ */

:root {
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
}

*, *::before, *::after { box-sizing: border-box; }

body { padding: 0; margin: 0; }
canvas { vertical-align: top; display: block; }

/* ---------- Scrollbar ---------- */
.custom-scrollbar::-webkit-scrollbar { width: 8px; }
.custom-scrollbar::-webkit-scrollbar-track { background: transparent; }
.custom-scrollbar::-webkit-scrollbar-thumb {
  background: var(--c-track);
  border-radius: 4px;
}
.custom-scrollbar::-webkit-scrollbar-thumb:hover { background: var(--c-muted); }
.custom-scrollbar { scrollbar-width: thin; scrollbar-color: var(--c-track) transparent; }

/* ---------- Focus ring ---------- */
:focus-visible {
  outline: 1px solid var(--c-sec);
  outline-offset: 1px;
}

/* ---------- Slider ---------- */
input[type=range] {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 2px;
  background: var(--c-track);
  border-radius: 2px;
  outline: none;
  cursor: pointer;
}
input[type=range]::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--c-white);
  border: none;
  cursor: pointer;
  transition: transform 0.2s ease;
}
input[type=range]::-webkit-slider-thumb:hover { transform: scale(1.15); }
/* Firefox: stessi valori del thumb WebKit (l'originale divergeva: 25px verde) */
input[type=range]::-moz-range-thumb {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--c-white);
  border: none;
  cursor: pointer;
}
input[type=range]::-moz-range-track {
  height: 2px;
  background: var(--c-track);
  border-radius: 2px;
}

/* ---------- Swatch di colore ----------
   Al posto di <input type="color">: il picker nativo non si può limitare a una
   lista di colori, quindi la scelta passa da un pannello nostro (#swatchPicker,
   costruito da js/ui.js) che espone solo i colori della palette. */
button.swatch {
  width: 100%;
  height: 24px;
  padding: 0;
  border: 1px solid var(--c-track);
  border-radius: 4px;
  cursor: pointer;
  transition: border-color 0.2s ease;
}
button.swatch:hover { border-color: var(--c-sec); }
button.swatch[aria-expanded="true"] { border-color: var(--c-primary); }

#swatchPicker button {
  height: 22px;
  padding: 0;
  border: 1px solid var(--c-border);
  border-radius: 2px;
  cursor: pointer;
  transition: border-color 0.2s ease;
}
#swatchPicker button:hover { border-color: var(--c-white); }

/* ---------- Select ---------- */
select {
  -webkit-appearance: none;
  appearance: none;
  background-color: var(--c-bg);
  background-image: url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%23737373' stroke-width='2.5'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 8px center;
  border: 1px solid var(--c-track);
  border-radius: 4px;
  color: var(--c-primary);
  padding: 5px 26px 5px 8px;
  width: 100%;
  cursor: pointer;
  transition: border-color 0.2s ease;
}
select:hover { border-color: var(--c-muted); }

/* ---------- Checkbox ---------- */
input[type=checkbox], input[type=radio] {
  accent-color: var(--c-primary);
  width: 14px;
  height: 14px;
  cursor: pointer;
  margin: 0;
}

/* ---------- Textarea ---------- */
textarea {
  background: var(--c-bg);
  border: 1px solid var(--c-track);
  border-radius: 4px;
  color: var(--c-primary);
  padding: 6px 8px;
  width: 100%;
  resize: vertical;
  font: inherit;
  transition: border-color 0.2s ease;
}
textarea:hover { border-color: var(--c-muted); }

/* ---------- Toast ---------- */
#toast {
  opacity: 0;
  transform: translateY(6px);
  transition: opacity 0.2s ease, transform 0.2s var(--ease-out);
}
#toast.show { opacity: 1; transform: translateY(0); }

/* ---------- Sidebar nascosta (preview a pieno schermo) ---------- */
#sidebar.hidden-ui { display: none; }

/* ---------- Marker <details> ---------- */
summary { list-style: none; }
summary::-webkit-details-marker { display: none; }