:root {
  --accent: #7f5af0;
  --bg: #0b0f16;
  --glass-bg: rgba(16, 20, 30, 0.55);
  --glass-border: rgba(255, 255, 255, 0.12);
  --text: #e6e6e6;
  --muted: #a6b0c3;
  --shadow: 0 10px 30px rgba(0,0,0,0.35), inset 0 1px 0 rgba(255,255,255,0.06);
  --blur: 16px;
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  color: var(--text);
  background: #000;
  font: 14px/1.4 system-ui, Segoe UI, Roboto, Helvetica, Arial, sans-serif;
  overflow: hidden;
}

#bg-layer {
  position: fixed; inset: 0;
  z-index: -1;
}
#bg-video, #bg-image {
  position: absolute; inset: 0;
  width: 100%; height: 100%;
  object-fit: cover;
}
#bg-image { display: none; }

#boot-overlay {
  position: fixed; inset: 0;
  display: grid; place-items: center;
  backdrop-filter: blur(12px) saturate(130%);
  background: rgba(5, 8, 12, 0.35);
  z-index: 1000;
}
.boot-card {
  width: 360px;
  padding: 24px;
  border-radius: 20px;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  box-shadow: var(--shadow);
  text-align: center;
}
.spinner {
  width: 44px; height: 44px; margin: 8px auto 12px;
  border-radius: 50%;
  border: 3px solid rgba(255,255,255,0.2);
  border-top-color: var(--accent);
  animation: spin 1s linear infinite;
}
@keyframes spin { to { transform: rotate(1turn); } }
.boot-title { font-size: 24px; font-weight: 700; letter-spacing: 0.4px; }
.boot-sub { color: var(--muted); margin-top: 6px; }
.boot-progress {
  margin-top: 12px; height: 6px; border-radius: 999px;
  background: rgba(255,255,255,0.1); overflow: hidden;
}
.boot-progress .bar {
  width: 0%; height: 100%; background: linear-gradient(90deg, #7f5af0, #2cb67d);
  animation: load 2.5s ease-out forwards;
}
@keyframes load { to { width: 100%; } }

#desktop {
  position: fixed; inset: 0;
  padding: 24px 24px 96px; /* space for taskbar */
}

/* Window frame */
.window {
  position: absolute;
  top: 80px; left: 80px;
  width: 820px; height: 520px;
  display: flex; flex-direction: column;
  border-radius: 18px;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  box-shadow: var(--shadow);
  backdrop-filter: blur(var(--blur)) saturate(140%);
}
.window-hidden { display: none; }
.window-titlebar {
  height: 44px; display: flex; align-items: center; justify-content: space-between;
  padding: 0 10px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
.window-title {
  display: flex; align-items: center; gap: 8px; color: var(--text);
}
.window-actions .btn {
  background: transparent; border: 0; color: var(--muted);
  width: 34px; height: 34px; border-radius: 10px; cursor: pointer;
}
.window-actions .btn:hover { background: rgba(255,255,255,0.06); color: var(--text); }
.window-content {
  flex: 1; overflow: hidden; position: relative;
}

/* Taskbar */
#taskbar {
  position: fixed; left: 50%; bottom: 22px; transform: translateX(-50%);
  z-index: 999;
}
.taskbar-inner {
  display: flex; align-items: center; gap: 8px;
  padding: 10px 14px;
  border-radius: 999px;
  background: rgba(16,20,30,0.55);
  border: 1px solid var(--glass-border);
  box-shadow: var(--shadow);
  backdrop-filter: blur(var(--blur)) saturate(140%);
}
.task-btn {
  width: 44px; height: 44px;
  display: grid; place-items: center;
  border: 0; border-radius: 14px;
  background: transparent; color: var(--text);
  cursor: pointer;
}
.task-btn:hover {
  background: rgba(255,255,255,0.08);
}
.taskbar-right {
  display: flex; align-items: center; gap: 12px; margin-left: 6px;
  padding-left: 12px; border-left: 1px solid rgba(255,255,255,0.08);
}
.clock { min-width: 84px; text-align: right; color: var(--muted); }

/* Icons from icons.js */
.icon { width: 22px; height: 22px; display: inline-block; }

/* Utility */
.btn { cursor: pointer; }
.hidden { display: none !important; }