/**
 * Manic Pixels Web OS — Desktop CSS
 * Grade, ícones, rubber band, wallpaper
 * Sprint 3
 */

/* ── Área do desktop ─────────────────────────────────────────────────────── */

#mp-desktop {
  position: absolute;
  inset: 0;
  overflow: hidden;
  outline: none;
}

/* ── Grid de ícones ──────────────────────────────────────────────────────── */

#mp-desktop-grid {
  position: relative;
  width: 100%;
  height: 100%;
  padding: 8px;
}

/* Guias de grade — visíveis quando fx.desktop.grid.guides está ON durante drag */
#mp-desktop.show-grid #mp-desktop-grid {
  background-image:
    linear-gradient(var(--mp-desktop-grid-color) 1px, transparent 1px),
    linear-gradient(90deg, var(--mp-desktop-grid-color) 1px, transparent 1px);
  background-size: 96px 96px;
}

/* ── Ocultar ícones (Exibir → Mostrar/Ocultar ícones da Área de Trabalho) ──── */

#mp-desktop.mp-icons-hidden .mp-desktop-icon {
  visibility: hidden;
  pointer-events: none;
}

/* ── Ícone do desktop ─────────────────────────────────────────────────────── */

.mp-desktop-icon {
  position: absolute;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-start;
  width: 80px;
  gap: 4px;
  padding: 6px 4px 4px;
  border-radius: 6px;
  cursor: pointer;
  user-select: none;
  -webkit-user-select: none;
  touch-action: none;
  border: 1.5px solid transparent;
  transition: background 0.12s ease, border-color 0.12s ease;
  content-visibility: auto;
  contain-intrinsic-size: 80px 96px;
  z-index: 1;
}

/* Tamanhos */
.mp-desktop-icon[data-size="small"] {
  width: 64px;
}
.mp-desktop-icon[data-size="small"] .mp-icon-img {
  width: 32px;
  height: 32px;
}
.mp-desktop-icon[data-size="small"] .mp-icon-label {
  font-size: 10px;
}

.mp-desktop-icon[data-size="medium"] {
  width: 80px;
}
.mp-desktop-icon[data-size="medium"] .mp-icon-img {
  width: 48px;
  height: 48px;
}

.mp-desktop-icon[data-size="large"] {
  width: 96px;
}
.mp-desktop-icon[data-size="large"] .mp-icon-img {
  width: 64px;
  height: 64px;
}
.mp-desktop-icon[data-size="large"] .mp-icon-label {
  font-size: 12px;
}

/* Hover */
.mp-desktop-icon.icon-hover-on:hover,
.mp-desktop-icon:hover {
  background: rgba(255, 255, 255, 0.08);
}

/* Selecionado */
.mp-desktop-icon.selected {
  background: var(--mp-desktop-select-bg);
  border-color: var(--mp-desktop-select-border);
}

/* Drag ghost */
.mp-desktop-icon.mp-dragging {
  opacity: 0.5;
  z-index: 10;
}

/* ── Imagem do ícone ─────────────────────────────────────────────────────── */

.mp-icon-img {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: transform 0.12s ease, filter 0.12s ease;
  position: relative;
}

.mp-icon-img img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  image-rendering: pixelated;
}

/* Emoji fallback */
.mp-icon-img .mp-icon-emoji {
  font-size: 36px;
  line-height: 1;
}

/* SVG fallback */
.mp-icon-img svg {
  width: 100%;
  height: 100%;
  fill: var(--mp-accent);
}

/* Hover scale effect */
.mp-desktop-icon.icon-hover-on:hover .mp-icon-img,
.icon-hover-on .mp-desktop-icon:hover .mp-icon-img {
  transform: scale(1.08);
  filter: brightness(1.15);
}

/* ── Label do ícone ──────────────────────────────────────────────────────── */

/**
 * Bug B-09 — cor branca fixa e sem sombra.
 * Antes: color era var(--mp-desktop-icon-fg) (variável indefinida → branco fixo);
 *         text-shadow só era aplicado via classe .icon-label-shadow-on.
 * Agora: usa var(--mp-text-primary) com fallback explícito, e text-shadow sempre
 *         activo (é inócuo em fundos escuros e garante legibilidade em wallpapers claros).
 */
.mp-icon-label {
  color: var(--mp-desktop-icon-fg, var(--mp-text-primary, rgba(239,240,241,0.95)));
  font-family: var(--mp-font-ui);
  font-size: 11px;
  text-align: center;
  line-height: 1.3;
  word-break: break-word;
  max-width: 100%;
  overflow: hidden;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  width: 100%;
  /* Sombra sempre activa para legibilidade independente do wallpaper */
  text-shadow: var(--mp-desktop-icon-shadow, 0 1px 4px rgba(0,0,0,0.85));
}

/* Permite desactivar a sombra via FxManager (fx.desktop.icon.shadow = false) */
.icon-label-shadow-off .mp-icon-label {
  text-shadow: none;
}

/* Compatibilidade retrocompatível com a classe antiga */
.icon-label-shadow-on .mp-icon-label {
  text-shadow: var(--mp-desktop-icon-shadow, 0 1px 4px rgba(0,0,0,0.85));
}

/* Input de renomear inline */
.mp-icon-label-input {
  background: rgba(0, 80, 180, 0.85);
  border: 1px solid var(--mp-accent);
  border-radius: 3px;
  color: #fff;
  font-family: var(--mp-font-ui);
  font-size: 11px;
  text-align: center;
  outline: none;
  padding: 1px 3px;
  width: 100%;
  max-width: 100%;
  resize: none;
  overflow: hidden;
}

/* ── Rubber band selection ───────────────────────────────────────────────── */

#mp-rubber-band {
  position: absolute;
  border: 1px solid var(--mp-desktop-select-border);
  background: var(--mp-desktop-select-bg);
  border-radius: 2px;
  pointer-events: none;
  z-index: 5;
  display: none;
}

#mp-rubber-band.active {
  display: block;
}

/* ── Wallpaper ───────────────────────────────────────────────────────────── */

#mp-workspace {
  background-color: #0d0d1a;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
}

#mp-workspace.wallpaper-transition {
  transition: background-color 0.4s ease, background-image 0.4s ease;
}

/* ── Estado vazio ────────────────────────────────────────────────────────── */

#mp-desktop-empty {
  position: absolute;
  inset: 0;
  display: none;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 12px;
  pointer-events: none;
  color: rgba(255,255,255,0.10);
  font-family: var(--mp-font-ui);
}

#mp-desktop-empty svg {
  width: 64px;
  height: 64px;
  fill: currentColor;
}

#mp-desktop-empty span {
  font-size: 13px;
}

#mp-desktop.is-empty #mp-desktop-empty {
  display: flex;
}