/* ===========================================================
   Рабочий стол в стиле Windows XP
   =========================================================== */

:root{
  --xp-blue1:#0a4fb0;
  --xp-blue2:#3d8ef5;
  --xp-blue3:#a9d4ff;
  --xp-body:#ece9d8;
  --xp-border:#0a3d91;
  --xp-green1:#8de35c;
  --xp-green2:#3c9d23;
  --xp-green3:#2a7a17;
  --font-ui:'Trebuchet MS','Tahoma','Segoe UI',Verdana,sans-serif;
}

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

html,body{
  height:100%;
  overflow:hidden;
  font-family:var(--font-ui);
  user-select:none;
}

/* ---------- рабочий стол / обои ---------- */
#desktop{
  position:relative;
  width:100%;
  height:100%;
  background-size:cover;
  background-position:center;
  /* запасной фон на случай, если картинка обоев не загрузилась */
  background-color:#3a6ea5;
  background-image:linear-gradient(180deg,#5b8fd6 0%,#7ea8dd 55%,#3d7ab8 100%);
  overflow:hidden;
}

/* ---------- иконки рабочего стола ---------- */
.desktop-icons{
  position:absolute;
  top:16px; left:16px;
  display:flex;
  flex-direction:column;
  gap:22px;
  z-index:1;
}

.desktop-icon{
  width:88px;
  display:flex;
  flex-direction:column;
  align-items:center;
  gap:6px;
  padding:6px;
  border-radius:4px;
  cursor:pointer;
}
.desktop-icon:hover{background:rgba(255,255,255,0.12);}
.desktop-icon.selected{background:rgba(61,142,245,0.35); outline:1px dashed rgba(255,255,255,0.7);}

.desktop-icon .icon-glyph{
  font-size:36px;
  line-height:1;
  filter:drop-shadow(0 2px 3px rgba(0,0,0,0.5));
}
.desktop-icon .icon-label{
  font-size:12px;
  color:#fff;
  text-align:center;
  text-shadow:1px 1px 2px rgba(0,0,0,0.85);
  line-height:1.3;
}

/* ---------- окна ---------- */
.xp-window{
  position:absolute;
  min-width:280px;
  min-height:200px;
  background:var(--xp-body);
  border:2px solid var(--xp-border);
  border-radius:8px 8px 4px 4px;
  box-shadow:0 10px 30px rgba(0,0,0,0.45);
  display:flex;
  flex-direction:column;
  overflow:hidden;
  z-index:10;
}
.xp-window.maximized{
  top:0 !important; left:0 !important;
  width:100% !important; height:100% !important;
  border-radius:0;
}
.xp-window.minimized{display:none;}

.xp-titlebar{
  height:34px;
  flex-shrink:0;
  background:linear-gradient(180deg, var(--xp-blue3), var(--xp-blue2) 45%, var(--xp-blue1));
  display:flex;
  align-items:center;
  padding:0 4px 0 8px;
  cursor:move;
  gap:6px;
}
.xp-titlebar .title-icon{font-size:14px;}
.xp-titlebar .title-text{
  flex:1;
  color:#fff;
  font-weight:bold;
  font-size:13px;
  text-shadow:0 1px 1px rgba(0,0,0,0.4);
  white-space:nowrap;
  overflow:hidden;
  text-overflow:ellipsis;
}
.xp-titlebar .win-btn{
  width:22px; height:20px;
  border:1px solid rgba(255,255,255,0.5);
  border-radius:3px;
  background:linear-gradient(180deg,#fff,#d8d8d8);
  color:#222;
  font-size:11px;
  font-weight:bold;
  display:flex; align-items:center; justify-content:center;
  cursor:pointer;
  line-height:1;
}
.xp-titlebar .win-btn:hover{filter:brightness(1.1);}
.xp-titlebar .win-btn.close{background:linear-gradient(180deg,#f5a8a8,#d84c4c); color:#fff;}

.xp-browserbar{
  flex-shrink:0;
  background:#f0eee2;
  border-bottom:1px solid #b8b29a;
  display:flex;
  align-items:center;
  gap:6px;
  padding:5px 8px;
}
.xp-browserbar button{
  width:24px; height:22px;
  border:1px solid #9a9580;
  border-radius:3px;
  background:linear-gradient(180deg,#fff,var(--xp-body));
  cursor:pointer;
  font-size:12px;
}
.xp-browserbar .addr{
  flex:1;
  background:#fff;
  border:1px solid #7a7560;
  border-radius:2px;
  padding:4px 8px;
  font-size:12px;
  color:#333;
  white-space:nowrap;
  overflow:hidden;
  text-overflow:ellipsis;
}

.xp-window-body{
  flex:1;
  overflow:auto;
  background:#fff;
  position:relative;
}
.xp-window-body iframe{
  width:100%; height:100%;
  border:none;
  display:block;
}
.xp-window-body .plain-content{
  padding:28px;
  font-size:14px;
  color:#333;
  line-height:1.6;
  text-align:center;
}

.resize-handle{
  position:absolute;
  right:0; bottom:0;
  width:16px; height:16px;
  cursor:nwse-resize;
}

/* ---------- таскбар ---------- */
.xp-taskbar{
  position:fixed;
  bottom:0; left:0; right:0;
  height:40px;
  background:linear-gradient(180deg, #3d8ef5 0%, #1a5fd6 12%, #144fc0 88%, #0d3d9e 100%);
  border-top:1px solid #7fb4ff;
  display:flex;
  align-items:center;
  z-index:10000;
  padding:0 6px;
  box-shadow:0 -2px 10px rgba(0,0,0,0.35);
  gap:8px;
}

.xp-start{
  background:linear-gradient(180deg,var(--xp-green1),var(--xp-green2) 50%,var(--xp-green3));
  border:1px solid #1f5c10;
  border-radius:6px;
  padding:5px 14px 5px 10px;
  color:#fff;
  font-weight:bold;
  font-size:14px;
  font-style:italic;
  box-shadow:inset 0 1px 0 rgba(255,255,255,0.6), 0 1px 3px rgba(0,0,0,0.4);
  display:flex; align-items:center; gap:6px;
  white-space:nowrap;
  cursor:pointer;
  flex-shrink:0;
}
.xp-start:hover{filter:brightness(1.06);}
.xp-start.active{box-shadow:inset 0 2px 4px rgba(0,0,0,0.4);}

.xp-taskbar-divider{
  width:1px; align-self:stretch; margin:6px 0;
  background:rgba(255,255,255,0.25);
  flex-shrink:0;
}

.xp-taskbar-windows{
  flex:1;
  display:flex;
  gap:6px;
  overflow:hidden;
  height:100%;
  align-items:center;
}

.xp-taskbar-btn{
  background:linear-gradient(180deg, #3a7de0, #1c56c9);
  border:1px solid #123f96;
  border-radius:3px;
  padding:5px 12px;
  color:#fff;
  font-size:12px;
  max-width:180px;
  white-space:nowrap;
  overflow:hidden;
  text-overflow:ellipsis;
  cursor:pointer;
  display:flex; align-items:center; gap:6px;
  height:28px;
  flex-shrink:0;
}
.xp-taskbar-btn.active-win{
  background:linear-gradient(180deg, #1c56c9, #0e3a99);
  box-shadow:inset 0 2px 4px rgba(0,0,0,0.4);
}

.xp-clock{
  flex-shrink:0;
  background:linear-gradient(180deg,#1a5fd6,#0d3d9e);
  border:1px solid #0a3080;
  border-radius:3px;
  padding:6px 12px;
  color:#fff;
  font-size:12px;
  white-space:nowrap;
}

/* ---------- меню Пуск ---------- */
.start-menu{
  position:fixed;
  bottom:40px; left:6px;
  width:360px;
  max-width:calc(100vw - 12px);
  background:#fff;
  border:2px solid var(--xp-blue1);
  border-radius:8px 8px 4px 4px;
  box-shadow:0 10px 30px rgba(0,0,0,0.5);
  z-index:10001;
  overflow:hidden;
  display:none;
}
.start-menu.open{display:block;}

.start-header{
  background:linear-gradient(90deg, var(--xp-blue1), var(--xp-blue2));
  padding:12px 14px;
  display:flex;
  align-items:center;
  gap:10px;
}
.start-header .avatar{
  width:40px; height:40px;
  border-radius:6px;
  background:linear-gradient(135deg,#ffd6e6,#ffe9c7);
  border:2px solid #fff;
  display:flex; align-items:center; justify-content:center;
  font-size:20px;
}
.start-header .user-name{
  color:#fff;
  font-weight:bold;
  font-size:15px;
  text-shadow:0 1px 2px rgba(0,0,0,0.4);
}

.start-body{
  display:flex;
  min-height:260px;
}

.start-col-left{
  flex:1.3;
  background:#fff;
  padding:8px 0;
}
.start-col-right{
  flex:1;
  background:#d3e0f5;
  padding:8px 0;
  border-left:1px solid #a9c2e8;
}

.start-item{
  display:flex;
  align-items:center;
  gap:10px;
  padding:7px 12px;
  font-size:13px;
  color:#1a1a1a;
  cursor:pointer;
  position:relative;
}
.start-item:hover{background:var(--xp-blue2); color:#fff;}
.start-item .start-icon{font-size:18px; width:22px; text-align:center;}
.start-item .arrow{margin-left:auto; font-size:11px;}

.start-divider{
  height:1px;
  background:#c9c2a8;
  margin:6px 10px;
}

.start-flyout{
  position:absolute;
  left:100%;
  top:0;
  width:220px;
  background:#fff;
  border:2px solid var(--xp-blue1);
  border-radius:4px;
  box-shadow:0 8px 20px rgba(0,0,0,0.4);
  display:none;
  z-index:10002;
}
.start-flyout.open{display:block;}

.start-footer{
  background:linear-gradient(90deg, var(--xp-blue1), var(--xp-blue2));
  padding:8px 12px;
  display:flex;
  justify-content:flex-end;
}
.start-shutdown{
  display:flex; align-items:center; gap:6px;
  color:#fff;
  font-size:12px;
  font-weight:bold;
  cursor:pointer;
  padding:5px 10px;
  border-radius:4px;
}
.start-shutdown:hover{background:rgba(255,255,255,0.15);}

/* ---------- маленький диалог (шутка на "завершение работы") ---------- */
.xp-dialog-overlay{
  position:fixed; inset:0;
  background:rgba(0,0,0,0.25);
  z-index:10003;
  display:none;
  align-items:center;
  justify-content:center;
}
.xp-dialog-overlay.open{display:flex;}
.xp-dialog{
  width:320px;
  background:var(--xp-body);
  border:2px solid var(--xp-border);
  border-radius:8px;
  overflow:hidden;
  box-shadow:0 10px 30px rgba(0,0,0,0.5);
}
.xp-dialog .xp-titlebar .title-text{font-size:12px;}
.xp-dialog-body{
  padding:22px 18px;
  font-size:13px;
  color:#222;
  text-align:center;
  line-height:1.6;
}
.xp-dialog-body .emoji{font-size:30px; display:block; margin-bottom:10px;}
.xp-dialog-footer{
  padding:10px 14px 16px;
  display:flex;
  justify-content:center;
}
.xp-dialog-footer button{
  padding:6px 26px;
  border-radius:3px;
  border:1px solid #7a7560;
  background:linear-gradient(180deg,#fff,var(--xp-body));
  font-size:12px;
  cursor:pointer;
}

@media (max-width:640px){
  .desktop-icon{width:74px;}
  .start-menu{width:calc(100vw - 12px);}
  .start-body{flex-direction:column;}
  .start-col-right{border-left:none; border-top:1px solid #a9c2e8;}
}

/* ---------- галерея выбора обоев ---------- */
.wallpaper-grid{
  display:grid;
  grid-template-columns:repeat(auto-fill, minmax(100px, 1fr));
  gap:12px;
  padding:16px;
}
.wallpaper-thumb{
  aspect-ratio:4/3;
  border-radius:4px;
  border:2px solid transparent;
  background-size:cover;
  background-position:center;
  background-color:#e4e0d0;
  cursor:pointer;
  box-shadow:0 1px 3px rgba(0,0,0,0.25);
  transition:transform .15s ease, border-color .15s ease;
  display:flex;
  align-items:flex-end;
  justify-content:center;
}
.wallpaper-thumb:hover{transform:translateY(-2px);}
.wallpaper-thumb.selected{
  border-color:var(--xp-blue1);
  box-shadow:0 0 0 2px #fff, 0 0 0 4px var(--xp-blue1);
}
.wallpaper-thumb.default-thumb{
  background:linear-gradient(180deg,#5b8fd6 0%,#7ea8dd 55%,#3d7ab8 100%);
}
.wallpaper-thumb span{
  font-size:10px;
  color:#fff;
  text-shadow:0 1px 2px rgba(0,0,0,0.6);
  padding:4px 2px;
  text-align:center;
}
.wallpaper-empty{
  padding:0 20px 20px;
  font-size:13px;
  color:#5a5343;
  text-align:center;
  line-height:1.6;
}