/* ---- Windows layer ---- */
#windows-layer {
  position: absolute;
  inset: 0;
  z-index: 100;
  pointer-events: none;
}
#windows-layer .window { pointer-events: auto; }

.window {
  position: absolute;
  min-width: 320px;
  min-height: 200px;
  display: flex;
  flex-direction: column;
  background: var(--win-bg);
  border-radius: var(--window-radius);
  box-shadow: var(--shadow-inactive);
  overflow: hidden;
  border: 0.5px solid var(--win-border);
  transition: box-shadow 0.2s ease, transform 0.28s var(--ease-out), opacity 0.28s var(--ease-out);
  will-change: transform;
}
.window.active { box-shadow: var(--shadow-active); }
.window.dragging, .window.resizing { transition: box-shadow 0.2s ease; }

/* Title bar */
.titlebar {
  height: 38px;
  flex: 0 0 38px;
  display: flex;
  align-items: center;
  padding: 0 12px;
  gap: 8px;
  background: var(--titlebar-bg);
  border-bottom: 0.5px solid var(--win-border);
  position: relative;
  cursor: default;
}
.window.active .titlebar { background: var(--titlebar-bg-active); }

/* Traffic lights */
.traffic-lights {
  display: flex;
  gap: 8px;
  align-items: center;
}
.tl {
  width: 12px; height: 12px;
  border-radius: 50%;
  position: relative;
  border: 0.5px solid rgba(0,0,0,0.12);
  background: #ccc;
}
.window.active .tl-close { background: var(--tl-red); }
.window.active .tl-min { background: var(--tl-yellow); }
.window.active .tl-max { background: var(--tl-green); }
.tl-glyph {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 9px;
  line-height: 1;
  color: rgba(0,0,0,0.55);
  opacity: 0;
  font-weight: 700;
}
.traffic-lights:hover .tl-glyph { opacity: 1; }

.titlebar-title {
  position: absolute;
  left: 0; right: 0;
  text-align: center;
  font-size: 13px;
  font-weight: 600;
  color: var(--titlebar-fg);
  pointer-events: none;
  padding: 0 90px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.window.active .titlebar-title { color: var(--titlebar-fg-active); }

.titlebar-spacer { flex: 1; }
.titlebar-accessory {
  display: flex;
  align-items: center;
  gap: 6px;
  z-index: 2;
}
.tb-btn {
  width: 28px; height: 24px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 6px;
  color: rgba(0,0,0,0.6);
}
.tb-btn:hover { background: rgba(0,0,0,0.08); }
.tb-btn svg { display: block; }

/* Window body */
.window-body {
  flex: 1 1 auto;
  overflow: auto;
  position: relative;
  background: var(--win-bg);
  color: var(--win-fg);
  min-height: 0;
}

/* Resize handles */
.resize-handle { position: absolute; z-index: 5; }
.rh-n  { top: -3px; left: 8px; right: 8px; height: 7px; cursor: ns-resize; }
.rh-s  { bottom: -3px; left: 8px; right: 8px; height: 7px; cursor: ns-resize; }
.rh-e  { right: -3px; top: 8px; bottom: 8px; width: 7px; cursor: ew-resize; }
.rh-w  { left: -3px; top: 8px; bottom: 8px; width: 7px; cursor: ew-resize; }
.rh-ne { top: -4px; right: -4px; width: 14px; height: 14px; cursor: nesw-resize; }
.rh-nw { top: -4px; left: -4px; width: 14px; height: 14px; cursor: nwse-resize; }
.rh-se { bottom: -4px; right: -4px; width: 14px; height: 14px; cursor: nwse-resize; }
.rh-sw { bottom: -4px; left: -4px; width: 14px; height: 14px; cursor: nesw-resize; }

/* Minimize / open / close animations */
.window.minimizing {
  transform: scale(0.16) translateY(60vh);
  opacity: 0;
  pointer-events: none;
}
.window.opening { animation: winOpen 0.26s var(--ease-out); }
@keyframes winOpen {
  from { opacity: 0; transform: scale(0.92); }
  to   { opacity: 1; transform: scale(1); }
}
.window.closing {
  animation: winClose 0.18s ease forwards;
  pointer-events: none;
}
@keyframes winClose {
  to { opacity: 0; transform: scale(0.94); }
}

.window.maximized {
  border-radius: 0;
  border: none;
}

/* Generic window content helpers */
.wb-pad { padding: 18px 20px; color: var(--win-fg); font-size: 14px; line-height: 1.5; }
.wb-center {
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 14px;
  text-align: center;
  color: var(--win-fg);
  padding: 30px;
}
.wb-center .big-glyph {
  font-size: 72px;
  line-height: 1;
  filter: drop-shadow(0 6px 14px rgba(0,0,0,0.18));
}
.wb-center h2 { font-size: 20px; font-weight: 700; }
.wb-center p { font-size: 13px; color: var(--win-muted); max-width: 360px; }