/* =========================================================
   DESKTOP SURFACE
   ========================================================= */
#desktop {
  position: relative;
  width: 100vw;
  height: 100vh;
  overflow: hidden;
  transition: background 0.6s ease;
}

/* ---------- WALLPAPERS (CSS-only, no image assets needed) ---------- */
#desktop[data-wallpaper="clouds"]      { background: linear-gradient(180deg,#bcd8ec 0%,#e9f3f8 60%,#f7efe0 100%); }
#desktop[data-wallpaper="blue-sky"]    { background: linear-gradient(180deg,#4f8fd1 0%,#8fc5ea 55%,#cfeaf5 100%); }
#desktop[data-wallpaper="forest"]      { background: linear-gradient(180deg,#274a3b 0%,#3f7a58 55%,#7fae6a 100%); }
#desktop[data-wallpaper="beach"]       { background: linear-gradient(180deg,#7fd0e0 0%,#f5e3ac 55%,#e8c98a 100%); }
#desktop[data-wallpaper="sunset"]      { background: linear-gradient(180deg,#3b2a5c 0%,#a34b6c 45%,#f0834a 75%,#ffc26b 100%); }
#desktop[data-wallpaper="night"]       { background: linear-gradient(180deg,#0b0b23 0%,#1c1c42 55%,#2f2a5c 100%); }
#desktop[data-wallpaper="pixel-meadow"]{ background: linear-gradient(180deg,#a9e0d8 0%,#cdeab0 55%,#8fc86a 100%); }
#desktop[data-wallpaper="retro-windows"]{ background: linear-gradient(180deg,#1c8fc9 0%,#3fb0d8 60%,#0f6a94 100%); }
#desktop[data-wallpaper="pixel-mountains"]{ background: linear-gradient(180deg,#7b6ab0 0%,#a888c4 45%,#e2a878 75%,#f4d19a 100%); }
#desktop[data-wallpaper="pixel-lake"]  { background: linear-gradient(180deg,#8fb9d8 0%,#5f92c0 55%,#2e5f8f 100%); }

/* "Pixel Dream" — the one wallpaper backed by a real image asset instead
   of a CSS gradient. Drop your artwork at images/wallpapers/bg.png. */
#desktop[data-wallpaper="pixel-dream"] {
  background-image: url('../images/wallpapers/bg.png');
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
}

/* soft pixel texture overlay so gradients read as "pixel-art" not smooth CSS */
#desktop::before {
  content: "";
  position: absolute; inset: 0;
  background-image:
    repeating-linear-gradient(0deg, rgba(0,0,0,0.035) 0 2px, transparent 2px 4px),
    repeating-linear-gradient(90deg, rgba(0,0,0,0.02) 0 2px, transparent 2px 4px);
  pointer-events: none;
  mix-blend-mode: multiply;
}

/* swatch previews used inside Settings — mirror the wallpaper gradients above */
.wallpaper-swatch[data-wallpaper="clouds"]      { background: linear-gradient(180deg,#bcd8ec 0%,#e9f3f8 60%,#f7efe0 100%); }
.wallpaper-swatch[data-wallpaper="blue-sky"]    { background: linear-gradient(180deg,#4f8fd1 0%,#8fc5ea 55%,#cfeaf5 100%); }
.wallpaper-swatch[data-wallpaper="forest"]      { background: linear-gradient(180deg,#274a3b 0%,#3f7a58 55%,#7fae6a 100%); }
.wallpaper-swatch[data-wallpaper="beach"]       { background: linear-gradient(180deg,#7fd0e0 0%,#f5e3ac 55%,#e8c98a 100%); }
.wallpaper-swatch[data-wallpaper="sunset"]      { background: linear-gradient(180deg,#3b2a5c 0%,#a34b6c 45%,#f0834a 75%,#ffc26b 100%); }
.wallpaper-swatch[data-wallpaper="night"]       { background: linear-gradient(180deg,#0b0b23 0%,#1c1c42 55%,#2f2a5c 100%); }
.wallpaper-swatch[data-wallpaper="pixel-meadow"]{ background: linear-gradient(180deg,#a9e0d8 0%,#cdeab0 55%,#8fc86a 100%); }
.wallpaper-swatch[data-wallpaper="retro-windows"]{ background: linear-gradient(180deg,#1c8fc9 0%,#3fb0d8 60%,#0f6a94 100%); }
.wallpaper-swatch[data-wallpaper="pixel-mountains"]{ background: linear-gradient(180deg,#7b6ab0 0%,#a888c4 45%,#e2a878 75%,#f4d19a 100%); }
.wallpaper-swatch[data-wallpaper="pixel-lake"]  { background: linear-gradient(180deg,#8fb9d8 0%,#5f92c0 55%,#2e5f8f 100%); }
.wallpaper-swatch[data-wallpaper="pixel-dream"] {
  background-image: url('../images/wallpapers/bg.png');
  background-size: cover;
  background-position: center;
}

/* =========================================================
   DESKTOP ICONS
   ========================================================= */
#icon-layer {
  position: absolute;
  inset: 0;
  padding: 22px;
  display: grid;
  grid-template-columns: repeat(3, 96px);
  grid-auto-flow: row;
  grid-auto-rows: 104px;
  gap: 10px 18px;
  align-content: start;
  z-index: 1;
}

.icon {
  width: 96px;
  height: 104px;
  background: none;
  border: none;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-start;
  gap: 8px;
  padding: 6px 2px;
  border-radius: var(--radius);
  animation: iconPop 0.4s ease both;
}
.icon:focus-visible { outline: 2px dashed var(--white); outline-offset: 2px; }
.icon:hover .icon-glyph, .icon.selected .icon-glyph { filter: brightness(1.15); transform: translateY(-2px); }
.icon.selected .icon-label, .icon:active .icon-label {
  background: var(--lilac-deep);
}

.icon-glyph {
  position: relative;
  width: 52px;
  height: 52px;
  transition: transform 0.15s ease;
  filter: drop-shadow(2px 2px 0 rgba(0,0,0,0.35));
}
.icon-glyph::after {
  content: "";
  position: absolute;
  left: 50%; bottom: -4px;
  width: 30px; height: 8px;
  transform: translateX(-50%);
  background: radial-gradient(ellipse, rgba(0,0,0,0.35) 0%, rgba(0,0,0,0) 70%);
}
.icon-label {
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.1;
  color: var(--desktop-icon-text);
  text-align: center;
  text-shadow: 1px 1px 0 rgba(0,0,0,0.6);
  padding: 1px 4px;
  border-radius: 2px;
}
[data-font="modern"] .icon-label { font-size: 12px; font-weight: 600; }

@keyframes iconPop {
  from { opacity: 0; transform: scale(0.7); }
  to { opacity: 1; transform: scale(1); }
}

/* =========================================================
   TASKBAR
   ========================================================= */
#taskbar {
  position: absolute;
  left: 0; right: 0; bottom: 0;
  height: 44px;
  background: var(--taskbar-bg);
  border-top: 2px solid var(--shadow);
  display: flex;
  align-items: stretch;
  z-index: 500;
  backdrop-filter: blur(2px);
}

.menu-btn {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 0 14px;
  background: linear-gradient(180deg, var(--coral), #e56b3e);
  border: none;
  border-right: 2px solid var(--shadow);
  color: var(--white);
  font-family: var(--font-display);
  font-size: 12px;
  letter-spacing: 0.5px;
}
.menu-btn:active { filter: brightness(0.9); }
.menu-btn .pixel-face { width: 20px; height: 20px; }

#task-windows {
  flex: 1;
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 0 8px;
  overflow-x: auto;
}
.task-chip {
  display: flex;
  align-items: center;
  gap: 6px;
  height: 30px;
  padding: 0 10px;
  background: rgba(255,255,255,0.12);
  border: 1px solid rgba(255,255,255,0.25);
  border-radius: 2px;
  color: var(--white);
  font-family: var(--font-body);
  font-size: 14px;
  white-space: nowrap;
  max-width: 160px;
}
.task-chip.active { background: var(--lilac); border-color: var(--white); }
.chip-icon { width: 16px; height: 16px; flex-shrink: 0; }
.task-chip img { width: 16px; height: 16px; }
.task-chip span { overflow: hidden; text-overflow: ellipsis; }

#tray {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 0 14px;
  color: var(--white);
  font-family: var(--font-body);
  font-size: 16px;
  border-left: 2px solid var(--shadow);
}

/* =========================================================
   START MENU
   ========================================================= */
#start-menu {
  position: absolute;
  left: 8px;
  bottom: 50px;
  width: 220px;
  background: var(--win-face);
  border: 2px solid var(--win-border);
  border-radius: var(--corner-radius);
  box-shadow: var(--shadow-hard);
  z-index: 600;
  display: none;
  flex-direction: column;
  overflow: hidden;
}
#start-menu.open { display: flex; animation: menuRise 0.15s ease both; }
@keyframes menuRise { from { opacity: 0; transform: translateY(6px);} to { opacity: 1; transform: translateY(0);} }
#start-menu .sm-header {
  background: var(--win-title-active);
  color: var(--win-title-text);
  padding: 10px;
  font-family: var(--font-display);
  font-size: 11px;
}
#start-menu button {
  background: none;
  border: none;
  text-align: left;
  padding: 10px 12px;
  font-family: var(--font-body);
  font-size: 15px;
  color: var(--ink);
  border-bottom: 1px solid var(--cream-deep);
}
#start-menu button:hover { background: var(--lilac); color: var(--white); }

/* =========================================================
   BOOT SCREEN (signature moment)
   ========================================================= */
#boot-screen {
  position: fixed;
  inset: 0;
  background: #000;
  color: #7cd6c0;
  z-index: 9999;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  font-family: var(--font-pixel-body);
  font-size: 20px;
  letter-spacing: 1px;
  gap: 14px;
  animation: bootFlicker 2.2s ease forwards;
}
#boot-screen .boot-logo {
  font-family: var(--font-pixel-display);
  font-size: 22px;
  color: #fff;
  text-shadow: 0 0 8px #7cd6c0;
}
#boot-screen .boot-bar {
  width: 220px; height: 10px;
  border: 2px solid #7cd6c0;
}
#boot-screen .boot-bar-fill {
  height: 100%;
  width: 0%;
  background: #7cd6c0;
  animation: bootLoad 1.6s ease forwards;
}
@keyframes bootLoad { to { width: 100%; } }
@keyframes bootFlicker {
  0% { opacity: 1; }
  92% { opacity: 1; }
  94% { opacity: 0.2; }
  96% { opacity: 1; }
  100% { opacity: 0; visibility: hidden; }
}

/* =========================================================
   CRT EFFECT (toggle)
   ========================================================= */
#crt-overlay { display: none; }
[data-crt="on"] #crt-overlay {
  display: block;
  position: fixed;
  inset: 0;
  z-index: 9000;
  pointer-events: none;
  background: repeating-linear-gradient(
    0deg, rgba(0,0,0,0.18) 0px, rgba(0,0,0,0.18) 1px, transparent 1px, transparent 3px
  );
  mix-blend-mode: multiply;
}
[data-crt="on"] #crt-overlay::after {
  content: "";
  position: absolute; inset: 0;
  background: radial-gradient(ellipse at center, rgba(255,255,255,0.05) 0%, rgba(0,0,0,0.25) 100%);
  animation: crtFlicker 6s infinite;
}
@keyframes crtFlicker {
  0%, 96%, 100% { opacity: 1; }
  97% { opacity: 0.85; }
  98% { opacity: 1; }
}
[data-crt="on"] #desktop {
  filter: contrast(1.08) saturate(1.15) brightness(1.02);
}

/* =========================================================
   RESPONSIVE
   ========================================================= */
@media (max-width: 720px) {
  #icon-layer {
    grid-template-columns: repeat(3, 1fr);
    gap: 4px;
    padding: 12px;
  }
  .icon { width: auto; }
  #taskbar {
    position: fixed;
    height: calc(44px + env(safe-area-inset-bottom));
    padding-bottom: env(safe-area-inset-bottom);
  }
  .menu-btn span.menu-label { display: none; }
  #tray { padding: 0 8px; }
}