:root {
  --bg: #12141a;
  --panel: #1b1f29;
  --text: #e6e9f0;
  --muted: #8a93a6;
  --accent: #4f8cff;
  --border: #2a3140;
  /* 三栏宽度（gutter 拖拽实时改） */
  --left-w: 240px;
  --right-w: 320px;
}

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

body {
  background: var(--bg);
  color: var(--text);
  font-family: "Segoe UI", "Microsoft YaHei", sans-serif;
  min-height: 100vh;
  overflow: hidden;
}

.hidden { display: none !important; }
.muted { color: var(--muted); }
.error { color: #ff6b6b; margin: 8px 0; }

/* 登录 */
.login-wrap { display: flex; justify-content: center; align-items: center; min-height: 100vh; }
.login-card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 36px 32px;
  width: 320px;
  display: flex; flex-direction: column; gap: 14px;
}
.login-card h1 { text-align: center; font-size: 20px; margin-bottom: 8px; }
.login-card input {
  background: var(--bg); color: var(--text);
  border: 1px solid var(--border); border-radius: 6px;
  padding: 10px 12px; font-size: 14px;
}
.login-card button {
  background: var(--accent); color: #fff;
  border: none; border-radius: 6px;
  padding: 10px; font-size: 14px; cursor: pointer;
}
.login-card button:hover { filter: brightness(1.1); }

/* 主界面 */
header {
  display: flex; justify-content: space-between; align-items: center;
  padding: 10px 20px; border-bottom: 1px solid var(--border);
}
header h1 { font-size: 16px; }
#logout-btn {
  background: none; color: var(--muted);
  border: 1px solid var(--border); border-radius: 6px;
  padding: 5px 14px; cursor: pointer;
}

/* ===== 三栏 IDE 布局 ===== */
main.layout {
  display: grid;
  grid-template-columns: var(--left-w) 6px 1fr 6px var(--right-w);
  height: calc(100vh - 45px);
  padding: 0;
  gap: 0;
  overflow: hidden;
}

.gutter {
  background: var(--bg);
  cursor: col-resize;
  transition: background 0.15s;
}
.gutter:hover, .gutter.dragging { background: var(--accent); }

/* 左栏：机器卡片 */
#machine-list {
  background: var(--panel);
  border-right: 1px solid var(--border);
  padding: 12px;
  overflow-y: auto;
}
#machine-list h2, #side-panel h2 {
  font-size: 13px; color: var(--muted);
  font-weight: 500; margin-bottom: 10px;
  text-transform: uppercase; letter-spacing: 1px;
}
.machine-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 10px 12px;
  margin-bottom: 8px;
  cursor: pointer;
  transition: border-color 0.15s, background 0.15s;
}
.machine-card:hover { border-color: var(--accent); }
.machine-card.selected {
  border-color: var(--accent);
  background: rgba(79, 140, 255, 0.12);
}
.machine-card .mc-host { font-weight: 600; font-size: 14px; margin-bottom: 4px; }
.machine-card .mc-meta { font-size: 12px; color: var(--muted); }
.machine-card .dot {
  display: inline-block; width: 8px; height: 8px; border-radius: 50%;
  background: #43d17c; margin-right: 6px;
}

/* 中栏：终端 */
#center-panel {
  display: flex; flex-direction: column;
  min-width: 0; overflow: hidden;
}
#terminal-tabs {
  display: flex; gap: 4px;
  padding: 6px 8px 0;
  background: var(--panel);
  border-bottom: 1px solid var(--border);
  min-height: 30px;
}
#terminal-tabs .tab {
  padding: 4px 14px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-bottom: none;
  border-radius: 6px 6px 0 0;
  font-size: 12px; cursor: pointer;
  color: var(--muted);
}
#terminal-tabs .tab.active {
  color: var(--text);
  background: #111;
  border-color: var(--accent);
}
#terminal-stack {
  flex: 1;
  position: relative;
  background: #111;
  min-height: 0;
}
.terminal-session {
  position: absolute; inset: 0;
  display: none;
}
.terminal-session.active { display: block; }
.terminal-session .xterm { height: 100%; }
#terminal-hint {
  position: absolute; top: 50%; left: 50%;
  transform: translate(-50%, -50%);
}

/* 右栏：堆叠面板 */
#side-panel {
  background: var(--panel);
  border-left: 1px solid var(--border);
  padding: 12px;
  overflow-y: auto;
  display: flex; flex-direction: column; gap: 14px;
}
.side-block {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 10px;
}
.side-block.grow { flex: 1; min-height: 120px; overflow: auto; }
.side-block button {
  background: var(--accent); color: #fff;
  border: none; border-radius: 5px;
  padding: 5px 12px; font-size: 12px; cursor: pointer;
  margin-right: 6px;
}
.side-block button:hover { filter: brightness(1.1); }
.file-row { display: flex; gap: 6px; margin-bottom: 6px; }
.file-row input[type=text] {
  flex: 1; min-width: 0;
  background: var(--bg); color: var(--text);
  border: 1px solid var(--border); border-radius: 4px;
  padding: 4px 8px; font-size: 12px;
}
.file-row input[type=file] { font-size: 11px; color: var(--muted); max-width: 160px; }

#sysinfo-body {
  font-family: consolas, monospace;
  font-size: 11px;
  max-height: 180px;
  overflow-y: auto;
  white-space: pre-wrap;
  word-break: break-all;
  margin-top: 6px;
}

#shot-image {
  max-width: 100%;
  display: block;
  margin-top: 8px;
  border: 1px solid #444;
}

/* 历史表（紧凑） */
table {
  width: 100%; border-collapse: collapse;
}
th, td { padding: 5px 6px; text-align: left; border-bottom: 1px solid var(--border); }
th { color: var(--muted); font-weight: 500; font-size: 11px; }
td { font-size: 12px; word-break: break-all; }
tr:hover td { background: rgba(79, 140, 255, 0.08); }
.status-done { color: #43d17c; }
.status-failed { color: #ff6b6b; }
.status-pending { color: var(--muted); }

input[type=text] {
  background: var(--bg); color: var(--text);
  border: 1px solid var(--border); border-radius: 5px;
  padding: 6px 10px; font-size: 13px;
}

.file-group {
  margin-bottom: 10px;
  padding-bottom: 10px;
  border-bottom: 1px dashed var(--border);
}
.file-group:last-of-type { border-bottom: none; }
.file-label {
  font-size: 12px;
  color: var(--accent);
  margin-bottom: 5px;
}

/* 终端头部栏右侧的代码页提示 */
.term-hint {
  margin-left: auto;
  font-size: 11px;
  color: var(--muted);
  opacity: 0.8;
  white-space: nowrap;
  user-select: none;
}

/* 全局隐藏滚动条但保留滚动能力（滚轮/触摸/拖拽） */
* {
  scrollbar-width: none;            /* Firefox */
  -ms-overflow-style: none;         /* 旧 Edge */
}
*::-webkit-scrollbar {
  display: none;                    /* Chrome/Edge/Safari（含 xterm viewport） */
}


/* 视图 切换 tabs（终端 / 远程桌面） */
#center-tabs {
  display: flex; gap: 4px; align-items: center;
  padding: 4px 8px; background: var(--panel);
  border-bottom: 1px solid var(--border);
}
#center-tabs .ctab {
  padding: 4px 14px; background: var(--bg);
  border: 1px solid var(--border); border-radius: 6px;
  font-size: 12px; cursor: pointer; color: var(--muted);
}
#center-tabs .ctab.active {
  color: var(--text); background: #111; border-color: var(--accent);
}
#terminal-view-wrap {
  flex: 1; display: flex; flex-direction: column; min-height: 0;
}
#desktop-view {
  flex: 1; display: flex; flex-direction: column; min-height: 0; background: #111;
}
#desktop-view.hidden { display: none; }
#desk-toolbar {
  padding: 6px 8px; display: flex; gap: 8px; align-items: center;
  background: var(--panel); border-bottom: 1px solid var(--border);
}
#desk-toolbar label { font-size: 12px; display: flex; align-items: center; gap: 4px; }
#desk-fps {
  background: var(--bg); color: var(--text);
  border: 1px solid var(--border); border-radius: 4px;
  padding: 2px 4px; font-size: 12px;
}
#desk-stage {
  flex: 1; overflow: auto; display: flex;
  align-items: center; justify-content: center; min-height: 0;
}
#desk-canvas { max-width: 100%; max-height: 100%; }


#desk-stage { position: relative; }
#desk-canvas { cursor: none; }
#desk-cursor {
  position: absolute;
  display: none;
  pointer-events: none;
  z-index: 5;
  background-repeat: no-repeat;
  background-size: 100% 100%;
  image-rendering: auto;

  filter: drop-shadow(0 0 1px rgba(255,255,255,0.95))
          drop-shadow(0 0 1px rgba(0,0,0,0.85));
}