/* ============================================================
   RetroDesk 95 — Windows 95 風デスクトップ
   ============================================================ */

:root {
  --face:   #c0c0c0;
  --hilite: #ffffff;
  --light:  #dfdfdf;
  --shadow: #808080;
  --dark:   #0a0a0a;
  --desktop:#008080;
  --title-a1:#000080;
  --title-a2:#1084d0;
  --title-i1:#808080;
  --title-i2:#b5b5b5;
  --sel:    #000080;
  --font: "MS UI Gothic", "MS PGothic", "MS Sans Serif", "Hiragino Kaku Gothic StdN", Tahoma, sans-serif;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
[hidden] { display: none !important; }

html, body { height: 100%; overflow: hidden; }
body {
  font-family: var(--font);
  font-size: 12px;
  color: #000;
  cursor: default;
  -webkit-user-select: none;
  user-select: none;
  background: #000;
}
input, textarea { -webkit-user-select: text; user-select: text; font-family: var(--font); }
svg { display: block; width: 100%; height: 100%; }

/* ---- 共通ベベル ---- */
.bevel-out, .btn95 {
  background: var(--face);
  box-shadow: inset -1px -1px var(--dark), inset 1px 1px var(--hilite),
              inset -2px -2px var(--shadow), inset 2px 2px var(--light);
}
.bevel-in {
  background: #fff;
  box-shadow: inset -1px -1px var(--hilite), inset 1px 1px var(--shadow),
              inset -2px -2px var(--light), inset 2px 2px var(--dark);
}
.sunken-lite { box-shadow: inset 1px 1px var(--shadow), inset -1px -1px var(--hilite); }

.btn95 {
  border: none;
  font-family: var(--font);
  font-size: 12px;
  padding: 4px 12px;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  cursor: default;
  color: #000;
}
.btn95:focus-visible { outline: 1px dotted #000; outline-offset: -5px; }
.btn95:active, .btn95.pressed {
  box-shadow: inset -1px -1px var(--hilite), inset 1px 1px var(--dark),
              inset -2px -2px var(--light), inset 2px 2px var(--shadow);
}
.btn95:active > *, .btn95.pressed > * { transform: translate(1px, 1px); }
.btn95:disabled { color: var(--shadow); text-shadow: 1px 1px var(--hilite); }
.btn95:disabled:active {
  box-shadow: inset -1px -1px var(--dark), inset 1px 1px var(--hilite),
              inset -2px -2px var(--shadow), inset 2px 2px var(--light);
}
.btn95:disabled:active > * { transform: none; }

/* ============================================================
   画面・デスクトップ
   ============================================================ */
#screen { position: fixed; inset: 0; display: flex; flex-direction: column; }
#desktop {
  flex: 1;
  position: relative;
  overflow: hidden;
  background: var(--desktop);
}
#icon-layer, #window-layer { position: absolute; inset: 0; }
#window-layer { pointer-events: none; }
#window-layer > * { pointer-events: auto; }

/* ---- デスクトップアイコン ---- */
.dicon {
  position: absolute;
  width: 76px;
  text-align: center;
  padding-top: 2px;
}
.dicon.dragging { opacity: .6; z-index: 999; }
.dicon-img { width: 36px; height: 36px; margin: 0 auto; position: relative; pointer-events: none; }
.dicon-label {
  display: inline-block;
  max-width: 74px;
  margin-top: 4px;
  padding: 1px 2px;
  color: #fff;
  background: transparent;
  line-height: 1.25;
  pointer-events: none;
  overflow-wrap: break-word;
}
.dicon.selected .dicon-label { background: var(--sel); outline: 1px dotted #ffff80; }
.dicon.selected .dicon-img::after {
  content: ""; position: absolute; inset: 0;
  background: repeating-conic-gradient(rgba(0,0,128,.85) 0% 25%, transparent 0% 50%) 0 0 / 2px 2px;
}
.dicon.drop-hover .dicon-label { background: var(--sel); outline: 1px dotted #ffff80; }
.dicon.drop-hover .dicon-img { transform: scale(1.15); }

/* ============================================================
   タスクバー
   ============================================================ */
#taskbar {
  height: 34px;
  background: var(--face);
  box-shadow: inset 0 1px var(--hilite), 0 -1px var(--light);
  border-top: 1px solid var(--face);
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 3px 4px 3px 3px;
  position: relative;
  z-index: 5;
}
#start-button { font-weight: bold; padding: 2px 8px; height: 26px; flex: 0 0 auto; }
.start-logo { width: 18px; height: 18px; display: inline-block; }
.task-divider {
  width: 2px; height: 24px; flex: 0 0 auto;
  box-shadow: inset 1px 0 var(--shadow), inset -1px 0 var(--hilite);
}
#task-buttons {
  flex: 1;
  display: flex;
  gap: 3px;
  overflow: hidden;
  height: 26px;
}
.task-btn {
  flex: 0 1 168px;
  min-width: 48px;
  height: 26px;
  padding: 2px 6px;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  overflow: hidden;
}
.task-btn .tb-icon { width: 16px; height: 16px; flex: 0 0 auto; }
.task-btn .tb-label {
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis; text-align: left;
}
.task-btn.pressed {
  font-weight: bold;
  background-image: repeating-conic-gradient(#fff 0% 25%, var(--face) 0% 50%);
  background-size: 2px 2px;
}
#tray {
  flex: 0 0 auto;
  height: 26px;
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 0 8px 0 6px;
  box-shadow: inset 1px 1px var(--shadow), inset -1px -1px var(--hilite);
}
#sound-toggle { width: 18px; height: 18px; border: none; background: transparent; padding: 1px; }
#clock { font-size: 12px; }

/* ============================================================
   スタートメニュー / コンテキストメニュー
   ============================================================ */
#start-menu {
  position: fixed;
  left: 2px;
  bottom: 36px;
  z-index: 8000;
  display: flex;
  background: var(--face);
  box-shadow: inset -1px -1px var(--dark), inset 1px 1px var(--hilite),
              inset -2px -2px var(--shadow), inset 2px 2px var(--light);
  padding: 3px;
}
.sm-banner {
  width: 26px;
  background: linear-gradient(180deg, #1084d0, #000080 70%);
  color: #fff;
  display: flex;
  align-items: flex-end;
  justify-content: center;
  padding-bottom: 8px;
}
.sm-banner span {
  writing-mode: vertical-rl;
  transform: rotate(180deg);
  font-weight: bold;
  font-size: 15px;
  letter-spacing: 2px;
  white-space: nowrap;
}
.sm-items { min-width: 200px; padding: 1px; }
.sm-item {
  position: relative;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 10px;
  font-size: 13px;
}
.sm-item .sm-icon { width: 26px; height: 26px; flex: 0 0 auto; }
.sm-item .sm-arrow { margin-left: auto; font-size: 10px; }
.sm-item:hover, .sm-item.open { background: var(--sel); color: #fff; }
.sm-sep { height: 2px; margin: 3px 2px; box-shadow: inset 0 1px var(--shadow), inset 0 -1px var(--hilite); }
.sm-sub {
  position: absolute;
  left: calc(100% - 3px);
  top: -4px;
  display: none;
  background: var(--face);
  box-shadow: inset -1px -1px var(--dark), inset 1px 1px var(--hilite),
              inset -2px -2px var(--shadow), inset 2px 2px var(--light);
  padding: 3px;
  min-width: 180px;
  color: #000;
}
.sm-item:hover > .sm-sub, .sm-item.open > .sm-sub { display: block; }
.sm-sub .sm-item { padding: 5px 10px; }
.sm-sub .sm-icon { width: 20px; height: 20px; }

#ctx-menu {
  position: fixed;
  z-index: 8100;
  background: var(--face);
  box-shadow: inset -1px -1px var(--dark), inset 1px 1px var(--hilite),
              inset -2px -2px var(--shadow), inset 2px 2px var(--light);
  padding: 3px;
  min-width: 170px;
}
#ctx-menu .sm-item { padding: 4px 10px; }

/* ============================================================
   ウィンドウ
   ============================================================ */
.window {
  position: absolute;
  background: var(--face);
  box-shadow: inset -1px -1px var(--dark), inset 1px 1px var(--light),
              inset -2px -2px var(--shadow), inset 2px 2px var(--hilite);
  padding: 3px;
  display: flex;
  flex-direction: column;
  min-width: 140px;
  min-height: 60px;
  outline: none;
}
.window.maximized { left: 0 !important; top: 0 !important; width: 100% !important; height: 100% !important; }

.titlebar {
  height: 22px;
  flex: 0 0 auto;
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 2px 2px 2px 3px;
  background: linear-gradient(90deg, var(--title-i1), var(--title-i2));
  color: #d4d0c8;
  touch-action: none;
}
.window.active > .titlebar { background: linear-gradient(90deg, var(--title-a1), var(--title-a2)); color: #fff; }
.titlebar-icon { width: 16px; height: 16px; flex: 0 0 auto; pointer-events: none; }
.titlebar-text {
  flex: 1;
  font-weight: bold;
  font-size: 12px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  pointer-events: none;
}
.titlebar-btns { display: flex; gap: 2px; flex: 0 0 auto; }
.tbtn {
  width: 18px; height: 16px;
  border: none;
  padding: 0;
  background: var(--face);
  box-shadow: inset -1px -1px var(--dark), inset 1px 1px var(--hilite),
              inset -2px -2px var(--shadow), inset 2px 2px var(--light);
  display: inline-flex;
  align-items: center;
  justify-content: center;
}
.tbtn:active {
  box-shadow: inset -1px -1px var(--hilite), inset 1px 1px var(--dark),
              inset -2px -2px var(--light), inset 2px 2px var(--shadow);
}
.tbtn svg { width: 12px; height: 10px; }
.tbtn-close { margin-left: 2px; }

.window-body {
  flex: 1;
  min-height: 0;
  display: flex;
  flex-direction: column;
  position: relative;
}
.resize-grip {
  position: absolute;
  right: 1px; bottom: 1px;
  width: 16px; height: 16px;
  cursor: nwse-resize;
  background:
    linear-gradient(135deg, transparent 0 50%, var(--hilite) 0 56%, var(--shadow) 0 66%,
      transparent 0 70%, var(--hilite) 0 76%, var(--shadow) 0 86%,
      transparent 0 90%, var(--hilite) 0 96%, var(--shadow) 0);
}
.window.maximized .resize-grip { display: none; }

/* ---- メニューバー ---- */
.menubar { display: flex; padding: 1px 0 2px; flex: 0 0 auto; }
.menubar-item { position: relative; padding: 3px 9px; }
.menubar-item:hover, .menubar-item.open { background: var(--sel); color: #fff; }
.menu-drop {
  display: none;
  position: absolute;
  left: 0; top: 100%;
  z-index: 50;
  background: var(--face);
  color: #000;
  box-shadow: inset -1px -1px var(--dark), inset 1px 1px var(--hilite),
              inset -2px -2px var(--shadow), inset 2px 2px var(--light);
  padding: 3px;
  min-width: 190px;
  white-space: nowrap;
}
.menubar-item.open > .menu-drop { display: block; }
.menu-entry { display: flex; align-items: center; gap: 8px; padding: 4px 18px 4px 22px; position: relative; }
.menu-entry:hover { background: var(--sel); color: #fff; }
.menu-entry.disabled { color: var(--shadow); text-shadow: 1px 1px var(--hilite); }
.menu-entry.disabled:hover { background: transparent; }
.menu-entry .accel { margin-left: auto; padding-left: 24px; }
.menu-entry .check { position: absolute; left: 7px; }
.menu-sep { height: 2px; margin: 3px 2px; box-shadow: inset 0 1px var(--shadow), inset 0 -1px var(--hilite); }

/* ---- ステータスバー ---- */
.statusbar { display: flex; gap: 3px; padding-top: 2px; flex: 0 0 auto; }
.statusbar > span {
  box-shadow: inset 1px 1px var(--shadow), inset -1px -1px var(--hilite);
  padding: 2px 8px;
  flex: 1;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.statusbar > span.fit { flex: 0 0 auto; }

/* ---- ダイアログ ---- */
.dlg-body { padding: 14px 16px 12px; display: flex; gap: 14px; align-items: flex-start; }
.dlg-icon { width: 36px; height: 36px; flex: 0 0 auto; }
.dlg-text { padding-top: 4px; line-height: 1.6; max-width: 340px; }
.dlg-buttons { display: flex; justify-content: center; gap: 8px; padding: 4px 14px 14px; }
.dlg-buttons .btn95 { min-width: 80px; justify-content: center; }

/* ============================================================
   アプリ: メモ帳
   ============================================================ */
.notepad-text {
  flex: 1;
  resize: none;
  border: none;
  outline: none;
  box-shadow: inset -1px -1px var(--light), inset 1px 1px var(--shadow),
              inset -2px -2px var(--hilite), inset 2px 2px var(--dark);
  padding: 6px 8px;
  font-family: "MS Gothic", "Osaka-Mono", monospace;
  font-size: 13px;
  line-height: 1.5;
  background: #fff;
  white-space: pre;
  overflow: auto;
}

/* ============================================================
   アプリ: ペイント
   ============================================================ */
.paint-main { flex: 1; display: flex; min-height: 0; }
.paint-tools {
  flex: 0 0 62px;
  padding: 4px 3px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.paint-tool-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 2px; }
.paint-tool {
  height: 26px;
  padding: 2px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}
.paint-tool svg { width: 17px; height: 17px; }
.paint-tool.on {
  box-shadow: inset -1px -1px var(--hilite), inset 1px 1px var(--dark),
              inset -2px -2px var(--light), inset 2px 2px var(--shadow);
  background-image: repeating-conic-gradient(#fff 0% 25%, var(--face) 0% 50%);
  background-size: 2px 2px;
}
.paint-sizes { display: flex; flex-direction: column; gap: 2px; padding: 3px; }
.paint-size { height: 16px; display: flex; align-items: center; justify-content: center; }
.paint-size span { display: block; width: 70%; background: #000; border-radius: 4px; }
.paint-size.on { background: var(--sel); }
.paint-size.on span { background: #fff; }
.paint-canvas-wrap {
  flex: 1;
  overflow: auto;
  background: #9c9c94;
  box-shadow: inset -1px -1px var(--light), inset 1px 1px var(--shadow),
              inset -2px -2px var(--hilite), inset 2px 2px var(--dark);
  padding: 8px;
}
.paint-canvas-wrap canvas { background: #fff; cursor: crosshair; box-shadow: 1px 1px 0 #555; touch-action: none; }
.paint-bottom { flex: 0 0 auto; display: flex; align-items: center; gap: 8px; padding: 5px 4px 3px; }
.paint-current {
  width: 30px; height: 30px; flex: 0 0 auto; position: relative;
  box-shadow: inset -1px -1px var(--hilite), inset 1px 1px var(--shadow),
              inset -2px -2px var(--light), inset 2px 2px var(--dark);
  background: var(--face);
}
.paint-current span {
  position: absolute; inset: 7px;
  border: 1px solid #555;
}
.paint-palette { display: grid; grid-template-columns: repeat(12, 17px); gap: 1px; }
.paint-swatch {
  width: 17px; height: 17px;
  box-shadow: inset -1px -1px var(--hilite), inset 1px 1px var(--shadow),
              inset -2px -2px var(--light), inset 2px 2px var(--dark);
}

/* ============================================================
   アプリ: マインスイーパー
   ============================================================ */
.mines-outer {
  padding: 6px;
  background: var(--face);
  border: 3px solid;
  border-color: var(--hilite) var(--shadow) var(--shadow) var(--hilite);
  margin: 0 1px 1px;
}
.mines-panel {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 4px 6px;
  border: 2px solid;
  border-color: var(--shadow) var(--hilite) var(--hilite) var(--shadow);
  margin-bottom: 6px;
}
.mines-lcd {
  background: #000;
  color: #f00;
  font-family: "DSEG7-Classic", "DSEG7 Classic", "Consolas", monospace;
  font-weight: bold;
  font-size: 19px;
  padding: 2px 3px;
  min-width: 56px;
  text-align: right;
  border: 1px solid;
  border-color: var(--shadow) var(--hilite) var(--hilite) var(--shadow);
  letter-spacing: 1px;
}
.mines-face {
  width: 30px; height: 30px;
  padding: 2px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}
.mines-face svg { width: 20px; height: 20px; }
.mines-board {
  display: grid;
  border: 3px solid;
  border-color: var(--shadow) var(--hilite) var(--hilite) var(--shadow);
  width: max-content;
  touch-action: none;
}
.cell {
  width: 21px; height: 21px;
  background: var(--face);
  box-shadow: inset -2px -2px var(--shadow), inset 2px 2px var(--hilite);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: bold;
  font-size: 14px;
  font-family: Verdana, var(--font);
  position: relative;
}
.cell svg { width: 13px; height: 13px; }
.cell.open {
  box-shadow: inset 1px 1px var(--shadow);
  background: var(--face);
}
.cell.boom { background: #f00; }
.cell.n1 { color: #0000ff; } .cell.n2 { color: #008000; }
.cell.n3 { color: #ff0000; } .cell.n4 { color: #000080; }
.cell.n5 { color: #800000; } .cell.n6 { color: #008080; }
.cell.n7 { color: #000000; } .cell.n8 { color: #808080; }
.cell.q { color: #000; font-size: 13px; }
.cell.wrong::after {
  content: "✕";
  position: absolute; inset: 0;
  color: #f00; font-size: 17px; line-height: 21px; text-align: center;
}

/* ============================================================
   アプリ: ごみ箱 / マイコンピュータ などのフォルダビュー
   ============================================================ */
.folder-toolbar { display: flex; gap: 4px; padding: 2px 0 4px; flex: 0 0 auto; }
.folder-toolbar .btn95 { padding: 3px 9px; font-size: 12px; }
.folder-view {
  flex: 1;
  min-height: 0;
  overflow: auto;
  box-shadow: inset -1px -1px var(--light), inset 1px 1px var(--shadow),
              inset -2px -2px var(--hilite), inset 2px 2px var(--dark);
  background: #fff;
  padding: 10px 6px;
  display: flex;
  flex-wrap: wrap;
  align-content: flex-start;
  gap: 4px 2px;
}
.fitem { width: 84px; text-align: center; padding: 4px 0 6px; }
.fitem-img { width: 34px; height: 34px; margin: 0 auto; pointer-events: none; }
.fitem-label { display: inline-block; margin-top: 3px; padding: 1px 3px; pointer-events: none; max-width: 80px; overflow-wrap: break-word; }
.fitem.selected .fitem-label { background: var(--sel); color: #fff; outline: 1px dotted #ffff80; }
.folder-empty { color: var(--shadow); width: 100%; text-align: center; padding-top: 48px; }

/* ============================================================
   その他のウィンドウ内コンテンツ
   ============================================================ */
.pad14 { padding: 14px; line-height: 1.7; overflow: auto; }
.about-body { display: flex; gap: 16px; padding: 18px 20px 8px; align-items: flex-start; }
.about-logo { width: 52px; height: 52px; flex: 0 0 auto; }
.about-text h2 { font-size: 16px; margin-bottom: 8px; }
.about-text p { line-height: 1.7; }
.about-rule { height: 2px; margin: 10px 0; box-shadow: inset 0 1px var(--shadow), inset 0 -1px var(--hilite); }
.viewer-pre {
  flex: 1;
  overflow: auto;
  background: #fff;
  box-shadow: inset -1px -1px var(--light), inset 1px 1px var(--shadow),
              inset -2px -2px var(--hilite), inset 2px 2px var(--dark);
  padding: 10px 12px;
  font-family: "MS Gothic", monospace;
  font-size: 13px;
  line-height: 1.6;
  white-space: pre-wrap;
  -webkit-user-select: text; user-select: text;
}
.welcome-head {
  background: var(--title-a1);
  color: #fff;
  padding: 14px 18px;
  font-size: 19px;
  font-weight: bold;
  letter-spacing: 1px;
}
.welcome-head small { display: block; font-size: 11px; font-weight: normal; margin-top: 4px; color: #c0d8ff; }
.welcome-tips { padding: 12px 18px; line-height: 1.9; flex: 1; overflow: auto; }
.welcome-tips li { margin-left: 18px; }
.welcome-foot { display: flex; align-items: center; gap: 8px; padding: 8px 14px 12px; }
.welcome-foot label { display: flex; align-items: center; gap: 5px; }
.welcome-foot .btn95 { margin-left: auto; min-width: 90px; justify-content: center; }

.run-body { padding: 14px 14px 10px; display: flex; gap: 12px; }
.run-body .dlg-icon { width: 34px; height: 34px; }
.run-fields { flex: 1; }
.run-fields p { margin-bottom: 10px; line-height: 1.5; }
.run-row { display: flex; align-items: center; gap: 8px; }
.run-row input {
  flex: 1;
  border: none;
  outline: none;
  box-shadow: inset -1px -1px var(--light), inset 1px 1px var(--shadow),
              inset -2px -2px var(--hilite), inset 2px 2px var(--dark);
  padding: 4px 6px;
  font-size: 13px;
  background: #fff;
}

.shutdown-body { padding: 16px 18px 8px; display: flex; gap: 16px; }
.shutdown-opts { display: flex; flex-direction: column; gap: 8px; padding-top: 4px; }
.shutdown-opts label { display: flex; gap: 7px; align-items: center; }
.shutdown-opts label.off { color: var(--shadow); text-shadow: 1px 1px var(--hilite); }

.drive-list { padding: 4px; }
.drive-row { display: flex; align-items: center; gap: 10px; padding: 6px 8px; }
.drive-row .drive-icon { width: 30px; height: 30px; flex: 0 0 auto; }
.drive-row.selected { background: var(--sel); color: #fff; }
.sysinfo { padding: 10px 14px; line-height: 1.8; border-top: 1px solid var(--shadow); box-shadow: 0 1px 0 var(--hilite) inset; }

.dialup-body { padding: 16px; text-align: center; line-height: 2; }
.dialup-anim { font-size: 22px; letter-spacing: 4px; margin: 6px 0; }

/* ============================================================
   起動 / 終了 / BSOD / スクリーンセーバー / CRT
   ============================================================ */
#boot {
  position: fixed; inset: 0;
  background: #000;
  z-index: 11000;
  color: #aaa;
}
#boot.fading { transition: opacity .6s; opacity: 0; }
#boot-power {
  position: absolute; inset: 0;
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  gap: 18px;
}
.boot-logo-grid, .splash-logo-grid {
  width: 72px; height: 72px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6px;
}
.boot-logo-grid::before, .splash-logo-grid::before,
.boot-logo-grid::after, .splash-logo-grid::after { content: none; }
.boot-logo-grid div, .splash-logo-grid div { width: 100%; height: 100%; }
.boot-power-title {
  font-size: 42px;
  font-weight: bold;
  color: #fff;
  font-style: italic;
  letter-spacing: 1px;
}
.boot-power-title span { color: #5ad0ff; font-style: normal; margin-left: 6px; }
.boot-power-hint { font-size: 13px; color: #888; }

#boot-bios {
  position: absolute; inset: 0;
  padding: 24px 28px;
  font-family: "MS Gothic", "Consolas", monospace;
  font-size: 15px;
  line-height: 1.5;
  color: #c8c8c8;
  white-space: pre-wrap;
}

#boot-splash {
  position: absolute; inset: 0;
  background: linear-gradient(180deg, #2a55a0 0%, #3a7abf 55%, #58a0d8 100%);
  overflow: hidden;
}
.splash-clouds {
  position: absolute; inset: 0;
  background:
    radial-gradient(closest-side, rgba(255,255,255,.85), transparent) 12% 22% / 360px 140px no-repeat,
    radial-gradient(closest-side, rgba(255,255,255,.7), transparent) 78% 30% / 420px 170px no-repeat,
    radial-gradient(closest-side, rgba(255,255,255,.6), transparent) 40% 75% / 520px 200px no-repeat,
    radial-gradient(closest-side, rgba(255,255,255,.5), transparent) 90% 80% / 300px 130px no-repeat;
  filter: blur(2px);
}
.splash-center {
  position: absolute; inset: 0;
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  gap: 14px;
}
.splash-name {
  font-size: 56px;
  font-weight: bold;
  font-style: italic;
  color: #fff;
  text-shadow: 3px 3px 0 rgba(0,0,40,.45);
}
.splash-95 { font-style: normal; color: #ffe14d; margin-left: 10px; }
.splash-tag { color: #dcecff; font-size: 13px; letter-spacing: 2px; }
.splash-stripe {
  position: absolute; left: 0; right: 0; bottom: 0;
  height: 16px;
  background: #000;
  overflow: hidden;
}
.splash-stripe-runner {
  position: absolute; top: 3px; bottom: 3px;
  width: 120px;
  background: linear-gradient(90deg, transparent, #00d8ff 30%, #0050ff 70%, transparent);
  animation: stripe-run 1.4s linear infinite;
}
@keyframes stripe-run {
  from { left: -130px; }
  to   { left: 100%; }
}

#shutdown-screen {
  position: fixed; inset: 0;
  background: #000;
  z-index: 10500;
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  gap: 26px;
}
.shutdown-msg {
  color: #ffa028;
  font-size: 30px;
  font-weight: bold;
  text-align: center;
  text-shadow: 2px 2px 0 #502800;
}
.shutdown-sub { color: #666; font-size: 13px; }

#bsod {
  position: fixed; inset: 0;
  background: #0000a8;
  z-index: 10000;
  display: flex;
  align-items: center;
  justify-content: center;
}
.bsod-inner {
  color: #fff;
  font-family: "MS Gothic", "Consolas", monospace;
  font-size: 15px;
  line-height: 1.7;
  max-width: 640px;
  padding: 20px;
}
.bsod-title {
  background: #a8a8a8;
  color: #0000a8;
  display: table;
  margin: 0 auto 22px;
  padding: 1px 10px;
  font-weight: bold;
}
.bsod-continue { text-align: center; }

#screensaver { position: fixed; inset: 0; z-index: 9000; background: #000; cursor: none; }
#ss-canvas { width: 100%; height: 100%; display: block; }

#crt {
  position: fixed; inset: 0;
  z-index: 12000;
  pointer-events: none;
  background:
    radial-gradient(ellipse at center, transparent 58%, rgba(0,0,10,.18) 100%),
    repeating-linear-gradient(0deg, rgba(0,0,0,.05) 0 1px, transparent 1px 3px);
}

.blink { animation: blink-anim 1.05s steps(1) infinite; }
@keyframes blink-anim { 50% { opacity: 0; } }

/* 最小化/復元アニメーション中 */
.window.animating { pointer-events: none; }