/* ============================================
   SKYNEX OS — Ubuntu Yaru + Skynex Brand
   ============================================ */

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  /* Ubuntu Yaru dark base */
  --bg: #2c001e;
  --bg-2: #1f0014;
  --bg-3: #3e0d2c;
  --panel: rgba(0, 0, 0, 0.78);
  --dock-bg: rgba(0, 0, 0, 0.65);
  --window-bg: #2a2c2e;
  --window-header: #353638;
  --window-body: #1f2122;
  --border: rgba(255, 255, 255, 0.10);
  --border-2: rgba(255, 255, 255, 0.15);

  /* Text */
  --text: #f0eef1;
  --text-2: #b8b3bc;
  --dim: #7f7a83;

  /* Ubuntu orange + Skynex brand */
  --ubuntu-orange: #E95420;
  --pink: #ff8ad9;
  --violet: #9d7bff;
  --cyan: #5ee5ff;

  /* Terminal */
  --term-bg: #1d1f21;
  --term-fg: #c9ffd2;
  --term-prompt: #5ee5ff;
  --term-cmd: #ffe1a8;
  --term-err: #ff6b8a;
  --term-dim: #6b7d75;

  /* Layout */
  --panel-h: 32px;
  --dock-w: 64px;

  --fm: 'JetBrains Mono', 'SF Mono', Consolas, monospace;
  --fu: 'Ubuntu', -apple-system, BlinkMacSystemFont, sans-serif;
  --fs: 'Space Grotesk', var(--fu);
}

html, body { height: 100%; overflow: hidden; }
body {
  font-family: var(--fu);
  background: var(--bg);
  color: var(--text);
  font-size: 14px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  user-select: none;
}

::selection { background: rgba(233, 84, 32, 0.4); color: #fff; }
a { color: inherit; text-decoration: none; }
button { font: inherit; border: none; background: none; color: inherit; cursor: pointer; }
kbd {
  display: inline-block;
  font-family: var(--fm);
  font-size: 11px;
  padding: 1px 6px;
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.15);
  border-bottom-width: 2px;
  border-radius: 4px;
}

.sr-only {
  position: absolute; width: 1px; height: 1px;
  padding: 0; margin: -1px; overflow: hidden;
  clip: rect(0,0,0,0); white-space: nowrap; border: 0;
}

/* ============================================
   WALLPAPER (Ubuntu jellyfish-inspired)
   ============================================ */
.wallpaper {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  overflow: hidden;
}
.wp-gradient {
  position: absolute; inset: 0;
  background:
    radial-gradient(ellipse 70% 60% at 25% 25%, rgba(233, 84, 32, 0.18), transparent 60%),
    radial-gradient(ellipse 70% 60% at 75% 70%, rgba(157, 123, 255, 0.20), transparent 60%),
    radial-gradient(ellipse 60% 50% at 50% 100%, rgba(255, 138, 217, 0.15), transparent 70%),
    linear-gradient(180deg, #2c001e 0%, #1a0010 100%);
}
.wp-prism {
  position: absolute;
  top: 50%; left: 50%;
  width: 50vmin; height: 50vmin;
  transform: translate(-50%, -50%);
  opacity: 0.18;
  animation: wpSpin 120s linear infinite;
  background: conic-gradient(from 0deg, transparent, rgba(94,229,255,0.3), transparent, rgba(255,138,217,0.3), transparent);
  border-radius: 50%;
  filter: blur(40px);
}
@keyframes wpSpin { to { transform: translate(-50%, -50%) rotate(360deg); } }
.wp-stars {
  position: absolute; inset: 0;
  background-image:
    radial-gradient(1.5px 1.5px at 20% 30%, rgba(255,255,255,0.5), transparent),
    radial-gradient(1.5px 1.5px at 40% 70%, rgba(255,255,255,0.4), transparent),
    radial-gradient(1px 1px at 70% 25%, rgba(255,255,255,0.5), transparent),
    radial-gradient(1px 1px at 85% 55%, rgba(255,255,255,0.3), transparent),
    radial-gradient(1.5px 1.5px at 15% 85%, rgba(255,255,255,0.4), transparent),
    radial-gradient(1px 1px at 55% 90%, rgba(255,255,255,0.3), transparent);
  background-size: 100% 100%;
}

/* ============================================
   TOP PANEL (GNOME shell)
   ============================================ */
.top-panel {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--panel-h);
  z-index: 100;
  display: flex;
  align-items: center;
  padding: 0 8px;
  background: var(--panel);
  backdrop-filter: blur(24px) saturate(150%);
  -webkit-backdrop-filter: blur(24px) saturate(150%);
  font-family: var(--fu);
  font-size: 13px;
  color: var(--text);
}
.activities-btn {
  padding: 4px 12px;
  font-weight: 500;
  letter-spacing: 0.2px;
  color: var(--text);
  border-radius: 5px;
  transition: background 0.15s;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.activities-btn:hover { background: rgba(255,255,255,0.1); }
.activities-btn.active { background: rgba(233, 84, 32, 0.4); }
.ab-dot {
  width: 5px; height: 5px;
  border-radius: 50%;
  background: var(--ubuntu-orange);
}

.panel-clock {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  font-family: var(--fu);
  font-size: 13px;
  font-weight: 500;
  padding: 4px 12px;
  border-radius: 5px;
  transition: background 0.15s;
  color: var(--text);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.panel-clock:hover { background: rgba(255,255,255,0.1); }
.panel-clock .dot-sep { color: var(--dim); }

.panel-tray {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 4px 10px;
  border-radius: 5px;
  transition: background 0.15s;
}
.panel-tray:hover { background: rgba(255,255,255,0.1); }
.tray-item {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  color: var(--text);
  font-size: 12px;
}
.user-menu-btn {
  padding: 0;
  display: flex;
  align-items: center;
}

/* USER MENU */
.user-menu {
  position: fixed;
  top: 36px;
  right: 8px;
  width: 280px;
  background: rgba(36, 36, 36, 0.95);
  border: 1px solid var(--border);
  border-radius: 10px;
  backdrop-filter: blur(20px) saturate(180%);
  box-shadow: 0 16px 60px rgba(0, 0, 0, 0.7);
  z-index: 200;
  padding: 8px;
  animation: dropIn 0.2s cubic-bezier(0.34, 1.56, 0.64, 1);
}
@keyframes dropIn {
  from { opacity: 0; transform: translateY(-8px); }
  to   { opacity: 1; transform: translateY(0); }
}
.um-section { padding: 8px 12px; }
.um-user { display: flex; align-items: center; gap: 12px; }
.um-avatar {
  width: 40px; height: 40px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--pink), var(--violet), var(--cyan));
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--fs);
  font-size: 18px;
  font-weight: 700;
  color: #06060c;
}
.um-user strong { display: block; font-size: 14px; }
.um-user small { font-size: 11px; color: var(--dim); }
.um-sep { height: 1px; background: var(--border); margin: 6px 0; }
.um-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 12px;
  border-radius: 6px;
  width: 100%;
  text-align: left;
  font-size: 13px;
  color: var(--text);
  transition: background 0.15s;
}
.um-item:hover { background: rgba(255,255,255,0.06); }
.um-item.danger { color: #ff6b8a; }
.um-item.danger:hover { background: rgba(255, 107, 138, 0.12); }

/* ============================================
   BOOT OVERLAY
   ============================================ */
.boot-overlay {
  position: fixed;
  inset: 0;
  z-index: 1000;
  background: var(--bg);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 40px 24px;
  font-family: var(--fm);
  font-size: 13px;
  color: var(--term-fg);
}
.boot-overlay.done {
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.6s ease;
}
.boot-text {
  width: 100%;
  max-width: 640px;
  white-space: pre-wrap;
  font-family: var(--fm);
  line-height: 1.7;
  text-shadow: 0 0 8px rgba(168, 255, 178, 0.25);
}
.boot-text .ok { color: #2cf279; }
.boot-text .err { color: var(--term-err); }
.boot-text .accent { color: var(--cyan); }
.boot-text .brand { color: var(--pink); }
.boot-bar {
  margin-top: 18px;
  width: 100%;
  max-width: 640px;
  height: 4px;
  background: rgba(255,255,255,0.06);
  border-radius: 4px;
  overflow: hidden;
}
.boot-bar-fill {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--ubuntu-orange), var(--pink), var(--violet), var(--cyan));
  transition: width 0.2s ease;
}

/* ============================================
   LEFT DOCK (Ubuntu Yaru)
   ============================================ */
.left-dock {
  position: fixed;
  top: var(--panel-h);
  left: 0;
  bottom: 0;
  width: var(--dock-w);
  z-index: 50;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 8px 0;
  background: var(--dock-bg);
  backdrop-filter: blur(24px) saturate(150%);
  border-right: 1px solid var(--border);
  gap: 4px;
  overflow-y: auto;
  scrollbar-width: none;
}
.left-dock::-webkit-scrollbar { display: none; }

.dock-group {
  display: flex;
  flex-direction: column;
  gap: 4px;
  align-items: center;
}
.dock-sep {
  width: 32px;
  height: 1px;
  background: var(--border-2);
  margin: 4px 0;
}
.dock-spacer { flex: 1; min-height: 8px; }

.dock-icon {
  position: relative;
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 12px;
  transition: all 0.15s cubic-bezier(0.4, 0, 0.2, 1);
  cursor: pointer;
}
.dock-icon::before {
  content: "";
  position: absolute;
  inset: 4px;
  border-radius: 10px;
  background: transparent;
  border: 1px solid transparent;
  transition: all 0.15s;
}
.dock-icon:hover { transform: scale(1.05); }
.dock-icon:hover::before {
  background: rgba(255,255,255,0.06);
  border-color: var(--border-2);
}
.dock-icon.running::after {
  content: "";
  position: absolute;
  left: -3px;
  top: 50%;
  transform: translateY(-50%);
  width: 3px;
  height: 14px;
  border-radius: 0 2px 2px 0;
  background: var(--ubuntu-orange);
  box-shadow: 0 0 6px var(--ubuntu-orange);
}
.dock-icon.running.minimized::after { background: var(--text-2); box-shadow: none; }
.dock-icon svg { position: relative; z-index: 1; }

.di-color {
  position: absolute;
  top: 4px; right: 4px;
  width: 5px; height: 5px;
  border-radius: 50%;
  background: var(--c, var(--violet));
  box-shadow: 0 0 4px var(--c, var(--violet));
  z-index: 2;
}

/* Tooltip on dock hover */
.dock-icon::before { z-index: 0; }
.dock-icon[title]::after {
  /* native tooltip is fine */
}

/* ============================================
   DESKTOP AREA
   ============================================ */
.desktop {
  position: fixed;
  top: var(--panel-h);
  left: var(--dock-w);
  right: 0;
  bottom: 0;
  z-index: 5;
  overflow: hidden;
}

.welcome {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  text-align: center;
  max-width: 720px;
  padding: 32px;
  background: rgba(0, 0, 0, 0.4);
  backdrop-filter: blur(20px);
  border: 1px solid var(--border);
  border-radius: 16px;
  transition: opacity 0.5s, transform 0.5s;
}
.welcome.hidden { opacity: 0; transform: translate(-50%, -40%); pointer-events: none; }
.welcome .kicker {
  display: block;
  font-family: var(--fm);
  font-size: 11px;
  color: var(--ubuntu-orange);
  letter-spacing: 1.5px;
  margin-bottom: 12px;
}
.welcome h2 {
  font-family: var(--fs);
  font-size: clamp(28px, 4vw, 42px);
  font-weight: 700;
  letter-spacing: -0.025em;
  line-height: 1.1;
  margin-bottom: 16px;
  color: var(--text);
}
.welcome .grad {
  background: linear-gradient(135deg, var(--pink), var(--violet) 50%, var(--cyan));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.welcome p {
  color: var(--text-2);
  font-size: 14px;
}
.welcome code, .welcome kbd {
  background: rgba(94, 229, 255, 0.12);
  border: 1px solid rgba(94, 229, 255, 0.25);
  color: var(--cyan);
  padding: 2px 8px;
  border-radius: 4px;
  font-size: 12px;
  font-family: var(--fm);
}

/* ============================================
   DESKTOP SHORTCUTS
   ============================================ */
.desktop-shortcuts {
  position: absolute;
  top: 16px;
  right: 12px;
  display: grid;
  grid-template-columns: 1fr;
  gap: 6px;
  z-index: 4;
}
.desktop-shortcut {
  width: 90px;
  padding: 10px 6px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  border-radius: 8px;
  border: 1px solid transparent;
  background: transparent;
  transition: all 0.15s;
  cursor: pointer;
}
.desktop-shortcut:hover {
  background: rgba(255,255,255,0.08);
  border-color: var(--border-2);
}
.desktop-shortcut:focus,
.desktop-shortcut.selected {
  background: rgba(233, 84, 32, 0.3);
  border-color: var(--ubuntu-orange);
}
.ds-label {
  font-family: var(--fu);
  font-size: 11.5px;
  color: var(--text);
  text-align: center;
  text-shadow: 0 1px 4px rgba(0,0,0,0.8);
  line-height: 1.2;
  word-break: break-word;
}

/* ============================================
   APP WINDOWS (Ubuntu/GNOME style)
   ============================================ */
.window-layer {
  position: fixed;
  top: var(--panel-h);
  left: var(--dock-w);
  right: 0;
  bottom: 0;
  z-index: 30;
  pointer-events: none;
}

.app-window {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: min(640px, calc(100vw - var(--dock-w) - 40px));
  max-height: calc(100vh - var(--panel-h) - 80px);
  background: var(--window-bg);
  border: 1px solid var(--border-2);
  border-radius: 12px;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  pointer-events: auto;
  box-shadow:
    0 30px 80px rgba(0, 0, 0, 0.7),
    0 0 0 1px rgba(255, 255, 255, 0.03);
  animation: winIn 0.25s cubic-bezier(0.34, 1.56, 0.64, 1);
}
@keyframes winIn {
  from { opacity: 0; transform: translate(-50%, -50%) scale(0.94); }
  to   { opacity: 1; transform: translate(-50%, -50%) scale(1); }
}
.app-window.closing { animation: winOut 0.2s ease-in forwards; }
@keyframes winOut {
  to { opacity: 0; transform: translate(-50%, -50%) scale(0.94); }
}
.app-window.dragging { transition: none; box-shadow: 0 36px 100px rgba(0,0,0,0.85); }
.app-window.minimizing {
  animation: winMin 0.3s cubic-bezier(0.4, 0, 0.6, 1) forwards;
}
@keyframes winMin {
  to { opacity: 0; transform: scale(0.1) translate(-90vw, 40vh); }
}
.app-window.maximized {
  top: 0 !important;
  left: 0 !important;
  width: 100% !important;
  height: 100% !important;
  max-height: 100% !important;
  transform: none !important;
  border-radius: 0;
  border: none;
}

.app-window.focused .win-bar {
  background: var(--window-header);
}
.app-window:not(.focused) .win-bar {
  background: #2a2c2e;
  opacity: 0.85;
}

/* WINDOW BAR (GNOME headerbar) */
.win-bar {
  display: flex;
  align-items: center;
  height: 38px;
  padding: 0 8px 0 16px;
  background: var(--window-header);
  border-bottom: 1px solid var(--border);
  cursor: grab;
  user-select: none;
  flex-shrink: 0;
}
.win-bar:active { cursor: grabbing; }
.win-title {
  flex: 1;
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-family: var(--fu);
  color: var(--text-2);
  letter-spacing: 0.2px;
  overflow: hidden;
  white-space: nowrap;
  text-overflow: ellipsis;
}
.win-title strong {
  color: var(--text);
  font-weight: 600;
}
.win-title .win-tag {
  color: var(--win-color, var(--violet));
  font-size: 10px;
  letter-spacing: 1px;
  text-transform: uppercase;
}

.win-controls {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-left: 8px;
}
.win-ctrl {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: rgba(255,255,255,0.10);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.15s;
  cursor: pointer;
  color: var(--text);
}
.win-ctrl:hover { background: rgba(255,255,255,0.18); }
.win-ctrl svg { width: 12px; height: 12px; }
.win-ctrl.win-close { background: rgba(233, 84, 32, 0.85); }
.win-ctrl.win-close:hover { background: var(--ubuntu-orange); }
.app-window:not(.focused) .win-ctrl { background: rgba(255,255,255,0.06); }
.app-window:not(.focused) .win-ctrl.win-close { background: rgba(255,255,255,0.10); }

/* WIN BODY */
.win-body {
  flex: 1;
  padding: 22px 24px 24px;
  overflow-y: auto;
  font-family: var(--fu);
  font-size: 13px;
  line-height: 1.65;
  color: var(--text-2);
  background: var(--window-body);
  user-select: text;
}
.win-body::-webkit-scrollbar { width: 8px; }
.win-body::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.10); border-radius: 8px; }

.win-heading {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 18px;
}
.win-icon-box {
  width: 48px;
  height: 48px;
  border-radius: 10px;
  background: color-mix(in srgb, var(--win-color) 18%, transparent);
  border: 1px solid color-mix(in srgb, var(--win-color) 40%, transparent);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--win-color, var(--violet));
  flex-shrink: 0;
}
.win-h1 {
  font-family: var(--fs);
  font-size: 22px;
  font-weight: 700;
  color: var(--text);
  letter-spacing: -0.01em;
  line-height: 1.1;
}
.win-h-tag {
  display: block;
  font-family: var(--fm);
  font-size: 10px;
  letter-spacing: 1.2px;
  color: var(--win-color);
  text-transform: uppercase;
  margin-top: 4px;
}

.win-dedicated {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  margin-bottom: 18px;
  background: color-mix(in srgb, var(--win-color) 8%, transparent);
  border: 1px solid color-mix(in srgb, var(--win-color) 25%, transparent);
  border-radius: 8px;
  color: var(--win-color);
  font-size: 12px;
  font-style: italic;
  letter-spacing: 0.2px;
}

.win-lines { white-space: pre-wrap; font-family: var(--fm); font-size: 12.5px; }
.win-lines .line-arrow { color: var(--win-color); }

.win-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 22px;
  padding-top: 18px;
  border-top: 1px solid var(--border);
}
.win-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 18px;
  background: var(--win-color, var(--violet));
  color: #06060c;
  font-family: var(--fu);
  font-size: 13px;
  font-weight: 600;
  border-radius: 8px;
  transition: all 0.2s;
}
.win-btn:hover {
  transform: translateY(-1px);
  filter: brightness(1.1);
  box-shadow: 0 6px 20px color-mix(in srgb, var(--win-color) 40%, transparent);
}
.win-btn.disabled {
  background: transparent;
  border: 1px dashed var(--border-2);
  color: var(--dim);
  cursor: not-allowed;
}
.win-btn.disabled:hover { transform: none; filter: none; box-shadow: none; }

/* ============================================
   TERMINAL APP (now inside a window)
   ============================================ */
.app-window.app-terminal { width: min(720px, calc(100vw - var(--dock-w) - 40px)); height: min(500px, calc(100vh - var(--panel-h) - 80px)); }
.app-window.app-terminal .win-body {
  padding: 14px 18px;
  background: var(--term-bg);
  color: var(--term-fg);
  font-family: var(--fm);
  font-size: 13px;
  text-shadow: 0 0 6px rgba(168, 255, 178, 0.15);
  cursor: text;
}
.app-window.app-terminal .win-bar .win-tag { color: var(--cyan); }
.term-output { white-space: pre-wrap; }
.term-line { margin: 0; }
.term-line.cmd .prompt { color: var(--term-prompt); }
.term-line.cmd .cmd-text { color: var(--term-cmd); }
.term-line.err { color: var(--term-err); }
.term-line.ok { color: #2cf279; }
.term-line.dim { color: var(--term-dim); }
.term-line .ok-tag { color: #2cf279; }
.term-line .accent { color: var(--cyan); }
.term-line .brand { color: var(--pink); }
.term-line .hl { color: var(--violet); font-weight: 600; }
.term-prompt-line {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 4px;
}
.prompt {
  font-family: var(--fm);
  font-size: 13px;
  white-space: nowrap;
  user-select: none;
}
.prompt-user { color: var(--cyan); }
.prompt-path { color: var(--violet); }
.term-input-wrap {
  position: relative;
  flex: 1;
  display: flex;
  align-items: center;
}
.term-input {
  flex: 1;
  background: transparent;
  border: none;
  outline: none;
  color: var(--term-cmd);
  font: inherit;
  font-size: 13px;
  padding: 0;
  caret-color: transparent;
  text-shadow: 0 0 6px rgba(255, 225, 168, 0.2);
}
.cursor-block {
  display: inline-block;
  width: 8px;
  height: 14px;
  background: var(--term-cmd);
  margin-left: 1px;
  animation: blink 1s steps(2) infinite;
  box-shadow: 0 0 6px rgba(255, 225, 168, 0.4);
  pointer-events: none;
}
@keyframes blink { 50% { opacity: 0; } }

/* ============================================
   FILES APP
   ============================================ */
.app-window.app-files { width: min(720px, calc(100vw - var(--dock-w) - 40px)); height: min(500px, calc(100vh - var(--panel-h) - 80px)); }
.app-window.app-files .win-body { padding: 0; display: flex; }
.files-sidebar {
  width: 180px;
  background: #1c1d1e;
  border-right: 1px solid var(--border);
  padding: 14px 8px;
  display: flex;
  flex-direction: column;
  gap: 2px;
  flex-shrink: 0;
}
.files-sidebar h4 {
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--dim);
  padding: 8px 10px 4px;
}
.files-sidebar a {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 7px 10px;
  border-radius: 6px;
  font-size: 13px;
  color: var(--text-2);
  cursor: pointer;
  transition: background 0.15s;
}
.files-sidebar a:hover { background: rgba(255,255,255,0.06); color: var(--text); }
.files-sidebar a.active { background: var(--ubuntu-orange); color: #fff; }
.files-main {
  flex: 1;
  padding: 18px;
  overflow-y: auto;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(96px, 1fr));
  gap: 16px;
  align-content: start;
}
.file-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  padding: 10px 6px;
  border-radius: 8px;
  cursor: pointer;
  transition: background 0.15s;
}
.file-item:hover { background: rgba(255,255,255,0.06); }
.file-item.selected { background: rgba(233, 84, 32, 0.25); }
.file-item svg { display: block; }
.file-item-name {
  font-size: 11.5px;
  text-align: center;
  color: var(--text);
  word-break: break-word;
  line-height: 1.2;
}

/* ============================================
   EDITOR APP
   ============================================ */
.app-window.app-editor { width: min(620px, calc(100vw - var(--dock-w) - 40px)); height: min(480px, calc(100vh - var(--panel-h) - 80px)); }
.app-window.app-editor .win-body { padding: 0; display: flex; flex-direction: column; }
.editor-toolbar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  background: #232425;
  border-bottom: 1px solid var(--border);
  font-size: 12px;
}
.editor-toolbar span { color: var(--dim); }
.editor-toolbar .saved { color: #2cf279; }
.editor-textarea {
  flex: 1;
  background: #1d1f21;
  color: #d4d4d4;
  border: none;
  outline: none;
  padding: 16px 20px;
  font-family: var(--fm);
  font-size: 13px;
  line-height: 1.65;
  resize: none;
  caret-color: var(--cyan);
}

/* ============================================
   CALCULATOR APP
   ============================================ */
.app-window.app-calculator { width: 320px; height: 440px; }
.app-window.app-calculator .win-body { padding: 0; display: flex; flex-direction: column; }
.calc-display {
  padding: 24px 20px 16px;
  background: #1d1f21;
  text-align: right;
  flex-shrink: 0;
}
.calc-history {
  font-family: var(--fm);
  font-size: 13px;
  color: var(--dim);
  min-height: 18px;
  margin-bottom: 4px;
}
.calc-result {
  font-family: var(--fm);
  font-size: 32px;
  font-weight: 500;
  color: var(--text);
  letter-spacing: 0.5px;
  overflow: hidden;
  text-overflow: ellipsis;
}
.calc-keys {
  flex: 1;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--border);
  padding: 1px;
}
.calc-key {
  background: #2a2c2e;
  color: var(--text);
  font-family: var(--fu);
  font-size: 18px;
  font-weight: 500;
  transition: background 0.15s;
  cursor: pointer;
  border: none;
}
.calc-key:hover { background: #353638; }
.calc-key:active { background: #404244; }
.calc-key.op { color: var(--ubuntu-orange); font-weight: 700; }
.calc-key.equals { background: var(--ubuntu-orange); color: #fff; }
.calc-key.equals:hover { background: #ff6a40; }
.calc-key.clear { color: var(--term-err); }

/* ============================================
   FIREFOX APP
   ============================================ */
.app-window.app-firefox { width: min(640px, calc(100vw - var(--dock-w) - 40px)); height: min(480px, calc(100vh - var(--panel-h) - 80px)); }
.app-window.app-firefox .win-body { padding: 0; display: flex; flex-direction: column; background: #1c1c1f; }
.ff-tabs {
  display: flex;
  background: #2a2a2e;
  padding: 6px 8px 0;
  gap: 4px;
  border-bottom: 1px solid var(--border);
}
.ff-tab {
  background: #1c1c1f;
  border: 1px solid var(--border);
  border-bottom: none;
  border-radius: 8px 8px 0 0;
  padding: 6px 12px;
  font-size: 12px;
  color: var(--text);
  display: flex;
  align-items: center;
  gap: 6px;
}
.ff-toolbar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  background: #2a2a2e;
  border-bottom: 1px solid var(--border);
}
.ff-addr {
  flex: 1;
  background: #1c1c1f;
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 6px 14px;
  color: var(--text);
  font-family: var(--fu);
  font-size: 12px;
}
.ff-content { flex: 1; padding: 24px; overflow-y: auto; }
.ff-content h3 {
  font-family: var(--fs);
  font-size: 18px;
  margin-bottom: 14px;
  color: var(--text);
}
.ff-bookmarks {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: 12px;
}
.ff-bm {
  padding: 14px 12px;
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border);
  border-radius: 8px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  transition: all 0.15s;
}
.ff-bm:hover {
  background: rgba(255,255,255,0.08);
  transform: translateY(-2px);
  border-color: var(--ubuntu-orange);
}
.ff-bm-dot {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--c, var(--violet));
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--fs);
  font-size: 18px;
  font-weight: 700;
  color: #06060c;
}
.ff-bm-name { font-size: 12px; text-align: center; }
.ff-bm-url { font-size: 10px; color: var(--dim); font-family: var(--fm); }

/* ============================================
   SETTINGS APP
   ============================================ */
.app-window.app-settings { width: 540px; }
.set-section {
  margin-bottom: 28px;
}
.set-section h3 {
  font-family: var(--fs);
  font-size: 14px;
  color: var(--text);
  margin-bottom: 12px;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--ubuntu-orange);
}
.set-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 14px;
  background: rgba(255,255,255,0.03);
  border: 1px solid var(--border);
  border-radius: 8px;
  margin-bottom: 6px;
}
.set-row-label { font-size: 13px; color: var(--text); }
.set-row-help { font-size: 11px; color: var(--dim); margin-top: 2px; }
.set-btn {
  padding: 6px 14px;
  background: var(--ubuntu-orange);
  color: #fff;
  font-size: 12px;
  font-weight: 600;
  border-radius: 6px;
  transition: filter 0.15s;
}
.set-btn:hover { filter: brightness(1.1); }
.set-btn.ghost { background: transparent; border: 1px solid var(--border-2); color: var(--text); }
.set-toggle {
  position: relative;
  width: 40px; height: 22px;
  background: var(--border-2);
  border-radius: 22px;
  cursor: pointer;
  transition: background 0.15s;
}
.set-toggle::after {
  content: "";
  position: absolute;
  width: 18px; height: 18px;
  background: #fff;
  border-radius: 50%;
  top: 2px;
  left: 2px;
  transition: left 0.15s;
}
.set-toggle.on { background: var(--ubuntu-orange); }
.set-toggle.on::after { left: 20px; }
.set-themes {
  display: flex;
  gap: 8px;
  margin-top: 8px;
}
.set-theme {
  width: 32px; height: 32px;
  border-radius: 50%;
  cursor: pointer;
  border: 2px solid transparent;
}
.set-theme.active { border-color: #fff; }

/* ============================================
   TRASH APP
   ============================================ */
.trash-empty {
  text-align: center;
  padding: 40px 20px;
  color: var(--dim);
}
.trash-empty svg { opacity: 0.4; margin-bottom: 16px; }
.trash-empty h3 { color: var(--text); margin-bottom: 8px; font-family: var(--fs); }
.trash-empty p { font-size: 13px; }

/* ============================================
   ACTIVITIES OVERVIEW
   ============================================ */
.activities-overlay {
  position: fixed;
  top: var(--panel-h);
  left: var(--dock-w);
  right: 0;
  bottom: 0;
  z-index: 110;
  background: rgba(20, 0, 12, 0.78);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 60px 40px;
  animation: aoIn 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}
.activities-overlay[hidden] { display: none !important; }
.user-menu[hidden] { display: none !important; }
.context-menu[hidden] { display: none !important; }
@keyframes aoIn { from { opacity: 0; backdrop-filter: blur(0px); } to { opacity: 1; } }
.ao-search {
  width: 100%;
  max-width: 460px;
  margin-bottom: 40px;
}
.ao-search input {
  width: 100%;
  background: rgba(0,0,0,0.5);
  border: 1px solid var(--border-2);
  border-radius: 30px;
  padding: 14px 24px;
  color: var(--text);
  font-family: var(--fu);
  font-size: 15px;
  outline: none;
  transition: border-color 0.15s;
}
.ao-search input:focus { border-color: var(--ubuntu-orange); }
.ao-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(110px, 1fr));
  gap: 16px;
  width: 100%;
  max-width: 720px;
  margin-bottom: 32px;
}
.ao-app {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  padding: 16px 8px;
  border-radius: 10px;
  cursor: pointer;
  transition: all 0.15s;
  border: 1px solid transparent;
}
.ao-app:hover {
  background: rgba(255,255,255,0.08);
  border-color: var(--border-2);
}
.ao-app-name {
  font-size: 12px;
  text-align: center;
  color: var(--text);
}
.ao-hint {
  font-size: 11px;
  color: var(--dim);
  font-family: var(--fm);
  margin-top: auto;
}

/* ============================================
   CONTEXT MENU (right-click)
   ============================================ */
.context-menu {
  position: fixed;
  z-index: 250;
  background: rgba(36, 36, 36, 0.97);
  border: 1px solid var(--border-2);
  border-radius: 8px;
  padding: 6px;
  min-width: 200px;
  backdrop-filter: blur(20px);
  box-shadow: 0 16px 50px rgba(0,0,0,0.7);
  animation: ctxIn 0.12s ease;
}
@keyframes ctxIn {
  from { opacity: 0; transform: scale(0.95); }
  to   { opacity: 1; transform: scale(1); }
}
.ctx-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 7px 12px;
  border-radius: 5px;
  font-size: 13px;
  color: var(--text);
  cursor: pointer;
  width: 100%;
  text-align: left;
}
.ctx-item:hover { background: var(--ubuntu-orange); color: #fff; }
.ctx-item.disabled { opacity: 0.4; cursor: not-allowed; }
.ctx-item.disabled:hover { background: transparent; color: var(--text); }
.ctx-sep { height: 1px; background: var(--border); margin: 4px 0; }
.ctx-shortcut { margin-left: auto; font-size: 11px; color: var(--dim); font-family: var(--fm); }
.ctx-item:hover .ctx-shortcut { color: rgba(255,255,255,0.8); }

/* ============================================
   MATRIX RAIN
   ============================================ */
.matrix-canvas {
  position: fixed;
  inset: 0;
  z-index: 950;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.6s ease;
  mix-blend-mode: screen;
}
.matrix-canvas.show { opacity: 1; }

/* ============================================
   TOAST NOTIFICATIONS
   ============================================ */
.toast-layer {
  position: fixed;
  bottom: 20px;
  right: 20px;
  z-index: 800;
  display: flex;
  flex-direction: column;
  gap: 10px;
  pointer-events: none;
  max-width: 320px;
}
.toast {
  --toast-color: #5ee5ff;
  background: rgba(20, 20, 20, 0.95);
  border: 1px solid var(--border-2);
  border-left: 3px solid var(--toast-color);
  border-radius: 8px;
  padding: 12px 16px;
  color: var(--text);
  font-family: var(--fu);
  font-size: 12px;
  line-height: 1.4;
  backdrop-filter: blur(16px);
  box-shadow: 0 12px 36px rgba(0,0,0,0.6);
  transform: translateX(110%);
  opacity: 0;
  transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1), opacity 0.3s;
  pointer-events: auto;
}
.toast.show { transform: translateX(0); opacity: 1; }
.toast strong { color: var(--toast-color); font-weight: 600; }

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 760px) {
  :root { --dock-w: 56px; }
  .activities-btn { font-size: 12px; padding: 4px 10px; }
  .activities-btn span:not(.ab-dot) { display: none; }
  .panel-tray { gap: 8px; padding: 4px 6px; }
  #trayBatteryPct { display: none; }
  .desktop-shortcuts { display: none; }
  .welcome { padding: 22px; max-width: 95%; }
  .app-window {
    width: calc(100vw - var(--dock-w) - 16px) !important;
    height: calc(100vh - var(--panel-h) - 16px) !important;
    max-height: none !important;
    left: calc(var(--dock-w) + 8px) !important;
    top: calc(var(--panel-h) + 8px) !important;
    transform: none !important;
  }
  .dock-icon { width: 42px; height: 42px; }
  .toast-layer { bottom: 12px; right: 12px; left: 12px; max-width: none; }
  .files-sidebar { width: 130px; }
  .files-main { padding: 12px; gap: 10px; }
}

@media (max-width: 420px) {
  .panel-clock { font-size: 11px; }
  .panel-clock #panelDate { display: none; }
  .dot-sep { display: none !important; }
}

/* Reduce motion */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  .cursor-block { animation: none; }
  .wp-prism { animation: none; }
}