:root {
  --accent:       #7c5cbf;
  --accent-glow:  #7c5cbf55;
  --bg-deep:      #09080f;
  --glass-bg:     rgba(255,255,255,0.08);
  --glass-border: rgba(255,255,255,0.14);
  --glass-blur:   14px;
  --glass-op:     0.08;
  --text:         #f0eeff;
  --text-dim:     rgba(240,238,255,0.5);
  --radius:       14px;
  --radius-sm:    8px;
  --shadow:       0 8px 40px rgba(0,0,0,0.55);
  --font-ui:      'Segoe UI', system-ui, -apple-system, sans-serif;
  --font-mono:    'Cascadia Code', 'Fira Mono', monospace;
  --taskbar-h:    52px;
  --transition:   0.22s cubic-bezier(.4,0,.2,1);

  /* wallpapers as gradients */
  --wp0: linear-gradient(135deg,#0d0b1e 0%,#1a0a3c 40%,#0c1a3c 100%);
  --wp1: linear-gradient(135deg,#0a1a0a 0%,#0d2a1a 40%,#0a0d1a 100%);
  --wp2: linear-gradient(135deg,#1a0a0a 0%,#2a0d1a 40%,#0a0d2a 100%);
  --wp3: linear-gradient(160deg,#0d0b1e 0%,#1a1a0a 50%,#0a1a1a 100%);
  --wp-current: var(--wp0);
}

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

body {
  font-family: var(--font-ui);
  background: var(--bg-deep);
  color: var(--text);
  height: 100vh;
  overflow: hidden;
  user-select: none;
}

.hidden { display: none !important; }


#boot-screen {
  position: fixed; inset: 0; z-index: 9999;
  background: #000;
  display: flex; align-items: center; justify-content: center;
  flex-direction: column;
}

.boot-center {
  width: min(520px, 92vw);
  display: flex; flex-direction: column; gap: 24px;
  align-items: flex-start;
}

.boot-logo {
  display: flex; align-items: center; gap: 14px;
}
.boot-icon {
  font-size: 2.4rem;
  color: var(--accent);
  filter: drop-shadow(0 0 16px var(--accent));
  animation: pulse 2s ease-in-out infinite;
}
@keyframes pulse { 0%,100%{opacity:1}50%{opacity:.6} }

.boot-name {
  font-size: 1.5rem;
  font-weight: 300;
  letter-spacing: .08em;
  color: #fff;
}
.boot-ver {
  font-size: .78rem;
  color: #555;
  letter-spacing: .12em;
  align-self: flex-end;
  margin-bottom: 4px;
}

.boot-log {
  font-family: var(--font-mono);
  font-size: .78rem;
  color: #5fda6f;
  line-height: 1.7;
  height: 120px;
  overflow: hidden;
  width: 100%;
}

.boot-bar-wrap {
  width: 100%; height: 3px;
  background: #1a1a1a;
  border-radius: 2px;
  overflow: hidden;
}
.boot-bar {
  height: 100%; width: 0%;
  background: linear-gradient(90deg, var(--accent), #a880ff);
  border-radius: 2px;
  transition: width .15s linear;
  box-shadow: 0 0 12px var(--accent);
}


#desktop {
  position: fixed; inset: 0;
  background: var(--wp-current);
  overflow: hidden;
  display: flex; flex-direction: column;
}


.orb {
  position: absolute; border-radius: 50%;
  filter: blur(80px); pointer-events: none; z-index: 0;
}
.orb1 {
  width: 520px; height: 520px;
  background: radial-gradient(circle, #7c5cbf33 0%, transparent 70%);
  top: -140px; left: -100px;
}
.orb2 {
  width: 400px; height: 400px;
  background: radial-gradient(circle, #2196f322 0%, transparent 70%);
  bottom: 60px; right: -60px;
}
.orb3 {
  width: 300px; height: 300px;
  background: radial-gradient(circle, #e91e6311 0%, transparent 70%);
  top: 40%; left: 40%;
}


.desk-clock {
  position: absolute; top: 36px; right: 48px; z-index: 10;
  text-align: right; pointer-events: none;
}
.clock-time {
  font-size: 3.2rem;
  font-weight: 200;
  letter-spacing: .04em;
  color: rgba(255,255,255,0.88);
  text-shadow: 0 0 40px var(--accent-glow);
}
.clock-date {
  font-size: .9rem;
  color: var(--text-dim);
  letter-spacing: .08em;
}


.desktop-icons {
  position: absolute;
  top: 52px; left: 40px;
  display: flex; flex-direction: column; gap: 20px;
  z-index: 10;
}

.desk-icon {
  display: flex; flex-direction: column; align-items: center;
  gap: 7px; width: 80px; cursor: pointer;
  padding: 10px 6px 8px;
  border-radius: var(--radius-sm);
  transition: background var(--transition), transform var(--transition);
}
.desk-icon:hover { background: rgba(255,255,255,0.08); transform: translateY(-2px); }
.desk-icon:active { transform: scale(.94); }

.icon-wrap {
  font-size: 2rem;
  line-height: 1;
  filter: drop-shadow(0 2px 8px rgba(0,0,0,.5));
}
.desk-icon span {
  font-size: .7rem;
  color: var(--text);
  text-align: center;
  text-shadow: 0 1px 4px rgba(0,0,0,.8);
  letter-spacing: .03em;
}


.glass {
  background: var(--glass-bg);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  border: 1px solid var(--glass-border);
}


.window {
  position: absolute;
  background: rgba(12,10,22,0.72);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  border: 1px solid var(--glass-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow), 0 0 0 0.5px rgba(255,255,255,0.06) inset;
  display: flex; flex-direction: column;
  overflow: hidden;
  min-width: 340px; min-height: 240px;
  z-index: 100;
  transition: box-shadow var(--transition), opacity .18s;
  animation: winOpen .22s cubic-bezier(.3,0,.2,1);
}
@keyframes winOpen {
  from { opacity:0; transform:scale(.94) translateY(12px); }
  to   { opacity:1; transform:scale(1)   translateY(0); }
}

.window.focused {
  box-shadow: var(--shadow), 0 0 0 1.5px var(--accent), 0 0 0 0.5px rgba(255,255,255,0.06) inset;
  z-index: 200;
}

.window.minimised {
  transform: scale(0.6) translateY(60px);
  opacity: 0;
  pointer-events: none;
}

.window.maximised {
  top: 0 !important;
  left: 0 !important;
  width: 100% !important;
  height: calc(100% - var(--taskbar-h)) !important;
  border-radius: 0;
}

/* ── Title bar ── */
.win-titlebar {
  display: flex; align-items: center; justify-content: space-between;
  padding: 10px 14px 10px 16px;
  background: rgba(255,255,255,0.04);
  border-bottom: 1px solid var(--glass-border);
  cursor: grab;
  flex-shrink: 0;
}
.win-titlebar:active { cursor: grabbing; }

.win-title {
  font-size: .85rem;
  font-weight: 500;
  letter-spacing: .04em;
  display: flex; align-items: center; gap: 8px;
  color: var(--text);
}
.win-icon { font-size: 1rem; }

.win-controls { display: flex; gap: 8px; }

.wbtn {
  width: 26px; height: 26px;
  border: 1px solid var(--glass-border);
  border-radius: 50%;
  background: rgba(255,255,255,0.06);
  color: var(--text-dim);
  font-size: .7rem;
  cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  transition: background var(--transition), color var(--transition);
}
.wbtn:hover { color: var(--text); }
.wbtn.cls:hover { background: #e53935; color: #fff; border-color: #e53935; }
.wbtn.max:hover { background: var(--accent); color: #fff; border-color: var(--accent); }
.wbtn.min:hover { background: #f9a825; color: #000; border-color: #f9a825; }

/* ── Toolbar ── */
.win-toolbar {
  display: flex; align-items: center; gap: 6px;
  padding: 8px 12px;
  border-bottom: 1px solid var(--glass-border);
  background: rgba(0,0,0,0.18);
  flex-shrink: 0;
  flex-wrap: wrap;
}

.tb-btn {
  padding: 3px 12px;
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-sm);
  background: rgba(255,255,255,0.07);
  color: var(--text);
  font-size: .75rem;
  cursor: pointer;
  transition: background var(--transition);
  white-space: nowrap;
}
.tb-btn:hover { background: rgba(255,255,255,0.16); }

.tb-select {
  padding: 3px 8px;
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-sm);
  background: rgba(0,0,0,0.35);
  color: var(--text);
  font-size: .75rem;
  cursor: pointer;
  outline: none;
}

.tb-sep { flex: 1; }
.tb-stat { font-size: .72rem; color: var(--text-dim); white-space: nowrap; }

/* ── Resize handle ── */
.win-resize {
  position: absolute;
  right: 0; bottom: 0;
  width: 18px; height: 18px;
  cursor: se-resize;
  display: flex; align-items: flex-end; justify-content: flex-end;
  padding: 4px;
  color: var(--text-dim);
  font-size: .6rem;
}


#win-notepad { width: 580px; height: 440px; top: 80px; left: 160px; }

.notepad-area {
  flex: 1;
  background: transparent;
  border: none;
  outline: none;
  color: var(--text);
  font-family: var(--font-mono);
  font-size: 15px;
  line-height: 1.65;
  padding: 16px 20px;
  resize: none;
  caret-color: var(--accent);
}
.notepad-area::placeholder { color: var(--text-dim); }


#win-files { width: 680px; height: 480px; top: 100px; left: 220px; }

.fe-body {
  display: flex; flex: 1; overflow: hidden;
}

.fe-sidebar {
  width: 160px; flex-shrink: 0;
  border-right: 1px solid var(--glass-border);
  padding: 12px 0;
  overflow-y: auto;
  background: rgba(0,0,0,0.15);
}

.fe-sidebar-item {
  padding: 8px 18px;
  font-size: .8rem;
  color: var(--text-dim);
  cursor: pointer;
  transition: background var(--transition), color var(--transition);
  display: flex; align-items: center; gap: 8px;
}
.fe-sidebar-item:hover { background: rgba(255,255,255,0.06); color: var(--text); }
.fe-sidebar-item.active { background: rgba(124,92,191,0.18); color: var(--accent); border-left: 2px solid var(--accent); }

.fe-path {
  font-size: .78rem;
  color: var(--text-dim);
  padding: 0 8px;
  font-family: var(--font-mono);
}

.fe-main {
  flex: 1;
  padding: 16px;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-content: flex-start;
  overflow-y: auto;
}

.fe-item {
  width: 88px;
  display: flex; flex-direction: column; align-items: center; gap: 6px;
  padding: 10px 6px 8px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: background var(--transition);
  text-align: center;
}
.fe-item:hover { background: rgba(255,255,255,0.08); }
.fe-item:active { background: rgba(124,92,191,0.2); }

.fe-item-icon { font-size: 2rem; }
.fe-item-name {
  font-size: .72rem;
  color: var(--text);
  word-break: break-word;
  line-height: 1.3;
}


#win-browser { width: 820px; height: 560px; top: 60px; left: 280px; }

.browser-bar { gap: 8px; }

.br-url {
  flex: 1;
  background: rgba(0,0,0,0.35);
  border: 1px solid var(--glass-border);
  border-radius: 20px;
  padding: 4px 14px;
  color: var(--text);
  font-size: .8rem;
  outline: none;
  transition: border-color var(--transition);
}
.br-url:focus { border-color: var(--accent); }

.browser-tabs {
  display: flex; gap: 2px;
  padding: 6px 12px 0;
  background: rgba(0,0,0,0.18);
  border-bottom: 1px solid var(--glass-border);
  overflow-x: auto;
}

.browser-tab {
  padding: 5px 14px;
  font-size: .75rem;
  color: var(--text-dim);
  border-radius: 6px 6px 0 0;
  cursor: pointer;
  background: rgba(255,255,255,0.04);
  border: 1px solid transparent;
  border-bottom: none;
  white-space: nowrap;
  display: flex; align-items: center; gap: 8px;
  transition: background var(--transition);
}
.browser-tab.active {
  background: rgba(124,92,191,0.18);
  border-color: var(--glass-border);
  color: var(--text);
}
.browser-tab:hover:not(.active) { background: rgba(255,255,255,0.07); }
.tab-close { font-size: .65rem; color: var(--text-dim); }
.tab-close:hover { color: #e53935; }

.tab-add {
  padding: 5px 10px;
  font-size: .75rem;
  cursor: pointer;
  color: var(--text-dim);
  border-radius: 6px;
  display: flex; align-items: center;
}
.tab-add:hover { color: var(--text); background: rgba(255,255,255,0.06); }

.browser-frame {
  flex: 1;
  border: none;
  background: #fff;
  width: 100%;
}

#win-settings { width: 640px; height: 500px; top: 90px; left: 200px; }

.settings-body {
  display: flex; flex: 1; overflow: hidden;
}

.settings-nav {
  width: 170px; flex-shrink: 0;
  padding: 16px 0;
  border-right: 1px solid var(--glass-border);
  background: rgba(0,0,0,0.15);
}
.sn-item {
  padding: 10px 20px;
  font-size: .82rem;
  color: var(--text-dim);
  cursor: pointer;
  transition: all var(--transition);
  display: flex; align-items: center; gap: 10px;
}
.sn-item:hover { color: var(--text); background: rgba(255,255,255,0.05); }
.sn-item.active { color: var(--accent); background: rgba(124,92,191,0.12); border-left: 2px solid var(--accent); }

.settings-content {
  flex: 1; overflow-y: auto; padding: 28px 28px;
}

.stab { display: none; }
.stab.active { display: block; }

.settings-content h2 {
  font-size: 1.1rem; font-weight: 400;
  margin-bottom: 24px; color: var(--text);
  border-bottom: 1px solid var(--glass-border);
  padding-bottom: 10px;
}

.setting-row {
  display: flex; align-items: center; gap: 14px;
  margin-bottom: 20px; flex-wrap: wrap;
}
.setting-row label:first-child {
  min-width: 130px; font-size: .82rem; color: var(--text-dim);
}
.setting-val { font-size: .82rem; color: var(--text); font-family: var(--font-mono); }

/* accent swatches */
.accent-swatches { display: flex; gap: 10px; }
.swatch {
  width: 26px; height: 26px; border-radius: 50%;
  cursor: pointer;
  border: 2px solid transparent;
  transition: transform var(--transition), border-color var(--transition);
}
.swatch:hover { transform: scale(1.15); }
.swatch.active { border-color: #fff; box-shadow: 0 0 0 2px var(--accent); }

/* range */
input[type=range] {
  flex: 1; max-width: 180px;
  accent-color: var(--accent);
  cursor: pointer;
}
input[type=range] + span { font-size: .78rem; color: var(--text-dim); }

/* wallpaper grid */
.wallpaper-grid { display: flex; gap: 10px; margin-top: 4px; }
.wp {
  width: 68px; height: 44px; border-radius: 6px;
  cursor: pointer;
  border: 2px solid transparent;
  transition: border-color var(--transition);
}
.wp[data-wp="0"] { background: var(--wp0); }
.wp[data-wp="1"] { background: var(--wp1); }
.wp[data-wp="2"] { background: var(--wp2); }
.wp[data-wp="3"] { background: var(--wp3); }
.wp.active { border-color: var(--accent); box-shadow: 0 0 0 2px rgba(124,92,191,.4); }

/* toggle */
.toggle { position: relative; display: inline-block; width: 42px; height: 22px; cursor: pointer; }
.toggle input { opacity: 0; width: 0; height: 0; }
.toggle-slider {
  position: absolute; inset: 0;
  background: rgba(255,255,255,0.1);
  border-radius: 11px;
  border: 1px solid var(--glass-border);
  transition: background var(--transition);
}
.toggle-slider::before {
  content: '';
  position: absolute;
  width: 16px; height: 16px;
  background: var(--text-dim);
  border-radius: 50%;
  top: 2px; left: 2px;
  transition: transform var(--transition), background var(--transition);
}
.toggle input:checked + .toggle-slider { background: var(--accent); border-color: var(--accent); }
.toggle input:checked + .toggle-slider::before { transform: translateX(20px); background: #fff; }

/* about */
.about-logo {
  font-size: 4rem; text-align: center;
  color: var(--accent); margin-bottom: 18px;
  filter: drop-shadow(0 0 20px var(--accent));
}
.about-text { font-size: .85rem; color: var(--text-dim); line-height: 1.7; margin-bottom: 12px; }
.about-badges { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 18px; }
.badge {
  padding: 4px 12px; border-radius: 20px;
  background: rgba(124,92,191,0.18);
  border: 1px solid rgba(124,92,191,0.35);
  font-size: .72rem; color: var(--accent);
  letter-spacing: .06em;
}


.taskbar {
  position: absolute; bottom: 0; left: 0; right: 0;
  height: var(--taskbar-h);
  display: flex; align-items: center;
  background: rgba(8,6,18,0.75);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-top: 1px solid var(--glass-border);
  padding: 0 16px;
  z-index: 500;
}

.taskbar-left { display: flex; align-items: center; }
.tb-logo {
  font-size: 1.5rem; color: var(--accent);
  filter: drop-shadow(0 0 8px var(--accent));
  margin-right: 16px;
}

.taskbar-center {
  flex: 1;
  display: flex; align-items: center; justify-content: center; gap: 8px;
}

.taskbar-right {
  display: flex; align-items: center; gap: 10px;
}

.tb-tray-icon { font-size: 1rem; cursor: pointer; }
.tb-clock {
  font-size: .82rem;
  color: var(--text);
  letter-spacing: .06em;
  min-width: 42px;
  text-align: center;
}

/* Taskbar app buttons */
.tb-app-btn {
  display: flex; align-items: center; gap: 8px;
  padding: 5px 14px;
  border-radius: var(--radius-sm);
  background: rgba(255,255,255,0.06);
  border: 1px solid transparent;
  cursor: pointer;
  font-size: .78rem;
  color: var(--text-dim);
  transition: all var(--transition);
  white-space: nowrap;
}
.tb-app-btn:hover { background: rgba(255,255,255,0.12); color: var(--text); }
.tb-app-btn.open {
  background: rgba(124,92,191,0.18);
  border-color: rgba(124,92,191,0.35);
  color: var(--text);
}
.tb-app-btn.open::after {
  content: '';
  display: block;
  position: absolute;
  bottom: -4px; left: 50%;
  transform: translateX(-50%);
  width: 4px; height: 4px;
  border-radius: 50%;
  background: var(--accent);
}
.tb-app-btn { position: relative; }
.tb-app-btn-icon { font-size: 1rem; }


::-webkit-scrollbar { width: 5px; height: 5px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.12); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: rgba(255,255,255,0.22); }


.ctx-menu {
  position: fixed; z-index: 9000;
  background: rgba(12,10,22,0.9);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-sm);
  padding: 6px 0;
  box-shadow: var(--shadow);
  min-width: 170px;
  animation: ctxOpen .12s ease-out;
}
@keyframes ctxOpen { from{opacity:0;transform:scale(.95)} to{opacity:1;transform:scale(1)} }

.ctx-item {
  padding: 8px 18px;
  font-size: .8rem;
  color: var(--text-dim);
  cursor: pointer;
  display: flex; align-items: center; gap: 10px;
  transition: background var(--transition), color var(--transition);
}
.ctx-item:hover { background: rgba(255,255,255,0.08); color: var(--text); }
.ctx-sep { height: 1px; background: var(--glass-border); margin: 4px 0; }


#toast-container {
  position: fixed; bottom: 70px; right: 18px; z-index: 9999;
  display: flex; flex-direction: column; gap: 8px;
  pointer-events: none;
}
.toast {
  background: rgba(12,10,22,0.9);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border: 1px solid var(--glass-border);
  border-left: 3px solid var(--accent);
  border-radius: var(--radius-sm);
  padding: 10px 16px;
  font-size: .8rem;
  color: var(--text);
  box-shadow: var(--shadow);
  animation: toastIn .2s ease-out, toastOut .3s ease-in 2.4s forwards;
  max-width: 260px;
}
@keyframes toastIn  { from{opacity:0;transform:translateX(30px)} to{opacity:1;transform:translateX(0)} }
@keyframes toastOut { to{opacity:0;transform:translateX(30px)} }


@media (max-width: 640px) {
  .desk-clock { top: 14px; right: 14px; }
  .clock-time { font-size: 2rem; }
  .desktop-icons { top: 36px; left: 12px; gap: 12px; }
  .desk-icon { width: 64px; }
  .icon-wrap { font-size: 1.6rem; }
  .window { min-width: 90vw; }
  #win-notepad, #win-files, #win-browser, #win-settings { width: 94vw; left: 3vw !important; }
}