* { box-sizing: border-box; user-select: none; }
body, html {
  margin: 0; padding: 0; width: 100%; height: 100%; overflow: hidden;
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Display", "Segoe UI", Roboto, sans-serif;
  color: #f8fafc;
  background: #060b19;
}

/* macOS Sonoma/Sequoia Blue Wave Wallpaper */
#desktop {
  position: fixed;
  inset: 0;
  background:
    radial-gradient(ellipse at 75% 20%, rgba(99, 102, 241, 0.55) 0%, transparent 55%),
    radial-gradient(ellipse at 20% 75%, rgba(14, 165, 233, 0.45) 0%, transparent 60%),
    linear-gradient(155deg, #0b1128 0%, #172554 45%, #1e1b4b 75%, #090d16 100%);
  background-size: cover;
  background-position: center;
  padding: 44px 20px 90px;
}

/* Top Translucent Menu Bar */
#menubar {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: 28px;
  background: rgba(15, 23, 42, 0.55);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 14px;
  font-size: 13px;
  z-index: 10000;
}
.menu-left, .menu-right { display: flex; align-items: center; gap: 14px; }
.apple-logo { font-size: 15px; cursor: pointer; padding: 2px 6px; border-radius: 4px; }
.apple-logo:hover, .menu-item:hover { background: rgba(255, 255, 255, 0.15); }
.menu-item { cursor: pointer; padding: 2px 6px; border-radius: 4px; color: rgba(255, 255, 255, 0.9); }
.status-pill { font-size: 11px; padding: 2px 8px; border-radius: 999px; background: rgba(255, 255, 255, 0.12); color: #93c5fd; }
.status-pill.ready { background: rgba(34, 197, 94, 0.2); color: #86efac; }

/* Apple Dropdown */
#apple-menu {
  position: fixed;
  top: 32px; left: 10px;
  width: 210px;
  background: rgba(23, 31, 52, 0.85);
  backdrop-filter: blur(24px);
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 10px;
  padding: 5px;
  display: none;
  flex-direction: column;
  box-shadow: 0 14px 35px rgba(0, 0, 0, 0.55);
  z-index: 10001;
}
.drop-item { padding: 6px 10px; border-radius: 6px; font-size: 13px; cursor: pointer; }
.drop-item:hover { background: #2563eb; color: #fff; }
.drop-sep { height: 1px; background: rgba(255, 255, 255, 0.12); margin: 4px 0; }

/* Floating macOS Glass Dock */
#dock-wrap {
  position: fixed;
  bottom: 10px;
  left: 0; right: 0;
  display: flex;
  justify-content: center;
  pointer-events: none;
  z-index: 9999;
}
#dock {
  pointer-events: auto;
  display: flex;
  align-items: flex-end;
  gap: 10px;
  padding: 8px 14px;
  background: rgba(255, 255, 255, 0.14);
  backdrop-filter: blur(24px) saturate(180%);
  -webkit-backdrop-filter: blur(24px) saturate(180%);
  border: 1px solid rgba(255, 255, 255, 0.24);
  border-radius: 20px;
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.45);
}
.dock-item {
  position: relative;
  width: 48px;
  height: 48px;
  border-radius: 13px;
  background: linear-gradient(145deg, rgba(30, 41, 59, 0.9), rgba(15, 23, 42, 0.95));
  border: 1px solid rgba(255, 255, 255, 0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 25px;
  cursor: pointer;
  transition: transform 0.18s cubic-bezier(0.2, 0.9, 0.3, 1.3), margin 0.18s ease;
  box-shadow: 0 6px 14px rgba(0, 0, 0, 0.35);
}
.dock-item:hover {
  transform: translateY(-10px) scale(1.22);
  margin: 0 6px;
}
.dock-item::after {
  content: attr(data-name);
  position: absolute;
  top: -32px;
  background: rgba(15, 23, 42, 0.9);
  border: 1px solid rgba(255, 255, 255, 0.15);
  color: #fff;
  font-size: 11px;
  padding: 3px 8px;
  border-radius: 6px;
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.15s;
}
.dock-item:hover::after { opacity: 1; }
.dock-dot {
  position: absolute;
  bottom: -6px;
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: #fff;
  display: none;
}
.dock-item.open .dock-dot { display: block; }
.dock-divider { width: 1px; height: 36px; background: rgba(255, 255, 255, 0.22); margin: 0 2px; align-self: center; }

/* macOS Windows */
.os-window {
  position: absolute;
  width: 880px;
  height: 560px;
  max-width: 96vw;
  max-height: calc(100vh - 105px);
  background: rgba(15, 23, 42, 0.92);
  backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 12px;
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.65);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  resize: both;
  animation: winPop 0.16s ease-out;
}
@keyframes winPop {
  from { opacity: 0; transform: scale(0.95); }
  to { opacity: 1; transform: scale(1); }
}
.os-window.maximized {
  top: 28px !important;
  left: 0 !important;
  width: 100% !important;
  height: calc(100vh - 28px) !important;
  max-width: 100% !important;
  max-height: calc(100vh - 28px) !important;
  border-radius: 0;
  resize: none;
}
.win-header {
  height: 36px;
  background: rgba(30, 41, 59, 0.85);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  display: flex;
  align-items: center;
  padding: 0 12px;
  cursor: grab;
  flex-shrink: 0;
  position: relative;
}
.win-header:active { cursor: grabbing; }
.traffic-lights { display: flex; gap: 8px; z-index: 2; }
.tl-btn {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  border: none;
  padding: 0;
  cursor: pointer;
}
.tl-close { background: #ff5f56; }
.tl-min { background: #ffbd2e; }
.tl-max { background: #27c93f; }
.win-title {
  position: absolute;
  left: 0; right: 0;
  text-align: center;
  font-size: 13px;
  font-weight: 600;
  color: rgba(255, 255, 255, 0.9);
  pointer-events: none;
}
.win-body { flex: 1; display: flex; flex-direction: column; overflow: hidden; position: relative; background: #090d16; user-select: text; }

/* Safari Browser Bar */
.browser-bar { display: flex; gap: 8px; padding: 8px 12px; background: #1e293b; border-bottom: 1px solid rgba(255, 255, 255, 0.1); align-items: center; }
.browser-bar input {
  flex: 1; padding: 6px 14px; border-radius: 8px; border: 1px solid rgba(255, 255, 255, 0.15);
  background: rgba(9, 13, 22, 0.85); color: white; font-size: 13px; text-align: center;
}
.browser-bar input:focus { text-align: left; outline: none; border-color: #38bdf8; }
.browser-bar button { padding: 6px 12px; border-radius: 7px; border: none; background: #2563eb; color: white; font-weight: 600; font-size: 12px; cursor: pointer; }
iframe.app-frame { flex: 1; width: 100%; border: none; background: #fff; }

/* Arcade Grid */
.arcade-wrap { padding: 16px; overflow-y: auto; flex: 1; }
.arcade-top { display: flex; gap: 10px; margin-bottom: 16px; flex-wrap: wrap; align-items: center; }
.arcade-top input { flex: 1; min-width: 180px; padding: 8px 14px; border-radius: 10px; border: 1px solid rgba(255, 255, 255, 0.15); background: #1e293b; color: white; }
.arcade-top button { padding: 8px 14px; border-radius: 10px; border: none; background: #38bdf8; color: #090d16; font-weight: 700; cursor: pointer; }
.arcade-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(130px, 1fr)); gap: 14px; }
.game-card { background: #1e293b; border: 1px solid rgba(255, 255, 255, 0.1); border-radius: 12px; overflow: hidden; cursor: pointer; transition: transform 0.15s, border-color 0.15s; }
.game-card:hover { transform: translateY(-4px); border-color: #38bdf8; }
.game-card img { width: 100%; aspect-ratio: 1/1; object-fit: cover; display: block; background: #0f172a; }
.game-card div { padding: 8px; font-size: 12px; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; text-align: center; }

/* Settings & Code Studio */
.settings-wrap { padding: 20px; overflow-y: auto; display: flex; flex-direction: column; gap: 16px; }
.setting-card { background: #1e293b; padding: 14px; border-radius: 12px; border: 1px solid rgba(255, 255, 255, 0.1); }
.setting-card h3 { margin: 0 0 10px; font-size: 14px; color: #38bdf8; }
.setting-row { display: flex; gap: 8px; flex-wrap: wrap; }
.setting-row input { flex: 1; padding: 8px 10px; border-radius: 8px; border: 1px solid rgba(255, 255, 255, 0.15); background: #0f172a; color: white; }
.setting-row button { padding: 8px 14px; border-radius: 8px; border: none; background: #38bdf8; color: #090d16; font-weight: 700; cursor: pointer; }
.studio-bar { display: flex; gap: 8px; padding: 8px 12px; background: #1e293b; border-bottom: 1px solid rgba(255, 255, 255, 0.1); align-items: center; }
.studio-bar select { background: #0f172a; color: #fff; border: 1px solid #334155; padding: 5px 10px; border-radius: 6px; }
.studio-bar button { background: #22c55e; color: #052e16; font-weight: 700; border: none; padding: 5px 14px; border-radius: 6px; cursor: pointer; }
.studio-main { display: flex; flex: 1; overflow: hidden; }
.studio-col { display: flex; flex-direction: column; flex: 1; border-right: 1px solid #334155; }
.studio-ed { flex: 1; background: #090d16; color: #e2e8f0; border: none; border-bottom: 1px solid #1e293b; padding: 10px; font-family: monospace; resize: none; }
.studio-out { flex: 1; display: flex; flex-direction: column; background: #020617; }
.studio-pre { display: none; flex: 1; margin: 0; padding: 12px; font-family: monospace; font-size: 13px; color: #e2e8f0; overflow: auto; white-space: pre-wrap; }