/* ══════════════════════════════════════════════════════════
   基础重置 + 仪表盘栅格
   ══════════════════════════════════════════════════════════ */

*,
*::before,
*::after { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  height: 100%;
  overflow: hidden;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 13px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  font-variant-numeric: tabular-nums;
}

button, input, select { font-family: inherit; font-size: inherit; color: inherit; }
button { cursor: pointer; background: none; border: none; padding: 0; }
:focus-visible { outline: 2px solid var(--rf); outline-offset: 2px; border-radius: 3px; }
::selection { background: var(--rf-dim); }

h1, h2, h3, h4 { margin: 0; font-weight: 500; }
ul { margin: 0; padding: 0; list-style: none; }
canvas { display: block; }

/* ── 主栅格 ────────────────────────────────────────────────── */

#app {
  display: grid;
  grid-template-columns: var(--left-w) minmax(0, 1fr) var(--right-w);
  grid-template-rows: var(--top-h) minmax(0, 1fr) var(--bottom-h);
  grid-template-areas:
    'top    top   top'
    'left   main  right'
    'bottom bottom bottom';
  height: 100vh;
  height: 100dvh;
  gap: 0;
}

.topbar { grid-area: top; }
.sidebar { grid-area: left; }
.stage-col { grid-area: main; }
.inspector { grid-area: right; }
.readout-bar { grid-area: bottom; }

/* ── 顶栏 ──────────────────────────────────────────────────── */

.topbar {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 0 14px;
  background: linear-gradient(180deg, var(--panel-2), var(--panel));
  border-bottom: 1px solid var(--border);
  position: relative;
  z-index: 30;
}

.topbar::after {
  content: '';
  position: absolute;
  inset: 0 0 auto 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(34, 211, 238, 0.28), transparent);
  pointer-events: none;
}

.brand { display: flex; align-items: baseline; gap: 9px; flex-shrink: 0; }
.brand-mark {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.06em;
  color: var(--rf);
}
.brand-name { font-size: 13px; font-weight: 500; letter-spacing: 0.01em; }
.brand-sub {
  font-size: 10.5px;
  color: var(--text-3);
  letter-spacing: 0.12em;
  font-family: var(--font-mono);
}

.top-status { display: flex; align-items: center; gap: 7px; margin-left: 6px; }
.status-dot {
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--text-4);
  box-shadow: 0 0 0 3px transparent;
  transition: background 220ms var(--ease), box-shadow 220ms var(--ease);
}
.status-dot[data-s='run'] { background: var(--ok); box-shadow: 0 0 0 3px var(--ok-dim); animation: breathe 1.8s var(--ease) infinite; }
.status-dot[data-s='out'] { background: var(--danger); box-shadow: 0 0 0 3px var(--danger-dim); }
.status-dot[data-s='warn'] { background: var(--energy); box-shadow: 0 0 0 3px var(--energy-dim); }

@keyframes breathe {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.45; }
}

.status-text {
  font-size: 11.5px;
  color: var(--text-2);
  font-family: var(--font-mono);
  letter-spacing: 0.02em;
  min-width: 78px;
}

.top-sep { width: 1px; height: 20px; background: var(--border); flex-shrink: 0; }

.top-metrics {
  display: flex;
  gap: 16px;
  margin-left: 2px;
  overflow: hidden;
  flex: 1;
}
.top-metric { display: flex; flex-direction: column; gap: 1px; min-width: 62px; }
.top-metric .k { font-size: 9.5px; color: var(--text-4); letter-spacing: 0.09em; }
.top-metric .v {
  font-family: var(--font-mono);
  font-size: 11.5px;
  color: var(--text-2);
  white-space: nowrap;
}
.top-metric .v b { color: var(--text); font-weight: 500; }

.top-actions { display: flex; align-items: center; gap: 4px; margin-left: auto; flex-shrink: 0; }

/* ── 中部舞台列 ────────────────────────────────────────────── */

.stage-col {
  display: flex;
  flex-direction: column;
  min-width: 0;
  min-height: 0;
  background: var(--bg-2);
  position: relative;
}

.viewport-wrap {
  position: relative;
  flex: 1 1 auto;
  min-height: 200px;
  overflow: hidden;
}

#viewport {
  position: absolute;
  inset: 0;
}

#viewport canvas { display: block; width: 100%; height: 100%; }

/* ── 图表区 ────────────────────────────────────────────────── */

.chart-deck {
  flex: 0 0 auto;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 6px;
  padding: 6px;
  background: var(--bg);
  border-top: 1px solid var(--border);
  transition: height 260ms var(--ease);
  height: 232px;
}

.chart-deck[data-mode='6'] {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  grid-template-rows: repeat(2, minmax(0, 1fr));
  height: 336px;
}

.chart-card {
  position: relative;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  padding: 0;
  overflow: hidden;
  min-height: 0;
  transition: border-color 200ms var(--ease);
}

.chart-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, var(--panel-hi), transparent 45%);
  pointer-events: none;
}

.chart-card canvas { width: 100%; height: 100%; }

.chart-card[data-hidden='1'] { display: none; }

/* ── 底部读数条 ────────────────────────────────────────────── */

.readout-bar {
  display: flex;
  align-items: center;
  gap: 0;
  padding: 0 6px;
  background: var(--panel);
  border-top: 1px solid var(--border);
  font-family: var(--font-mono);
  font-size: 11px;
  overflow-x: auto;
  scrollbar-width: none;
  z-index: 20;
}
.readout-bar::-webkit-scrollbar { display: none; }

.ro {
  display: flex;
  align-items: baseline;
  gap: 5px;
  padding: 0 11px;
  border-right: 1px solid var(--border);
  white-space: nowrap;
  height: 100%;
}
.ro:last-child { border-right: none; }
.ro .k { color: var(--text-4); font-size: 10px; letter-spacing: 0.04em; }
.ro .v { color: var(--text-2); font-variant-numeric: tabular-nums; }
.ro .v.em { color: var(--energy); }
.ro .v.rf { color: var(--rf); }
.ro .v.bm { color: var(--bmag); }
.ro .v.dg { color: var(--danger); }
.ro .v.ok { color: var(--ok); }
.ro .u { color: var(--text-4); font-size: 9.5px; }
.ro-right { margin-left: auto; display: flex; gap: 10px; padding-right: 4px; }

/* ── 侧栏通用 ──────────────────────────────────────────────── */

.sidebar, .inspector {
  display: flex;
  flex-direction: column;
  min-height: 0;
  background: var(--panel);
  overflow: hidden;
}
.sidebar { border-right: 1px solid var(--border); }
.inspector { border-left: 1px solid var(--border); }

.scroll-area {
  flex: 1 1 auto;
  overflow-y: auto;
  overflow-x: hidden;
  min-height: 0;
  overscroll-behavior: contain;
  scrollbar-width: thin;
  scrollbar-color: var(--border-3) transparent;
}
.scroll-area::-webkit-scrollbar { width: 8px; }
.scroll-area::-webkit-scrollbar-track { background: transparent; }
.scroll-area::-webkit-scrollbar-thumb {
  background: var(--border-2);
  border-radius: 8px;
  border: 2px solid var(--panel);
}
.scroll-area::-webkit-scrollbar-thumb:hover { background: var(--border-3); }

/* ── 响应式 ────────────────────────────────────────────────── */

@media (max-width: 1360px) {
  :root { --left-w: 240px; --right-w: 320px; }
}

@media (max-width: 1160px) {
  #app {
    grid-template-columns: minmax(0, 1fr);
    grid-template-areas:
      'top'
      'main'
      'bottom';
  }
  .sidebar, .inspector { grid-area: auto; }
  .inspector {
    position: fixed;
    top: var(--top-h);
    right: 0;
    bottom: var(--bottom-h);
    width: 352px;
    max-width: 92vw;
    z-index: 60;
    transform: translateX(100%);
    transition: transform 280ms var(--ease);
    box-shadow: var(--shadow-lg);
  }
  .inspector[data-open='1'] { transform: translateX(0); }
  .sidebar {
    position: fixed;
    top: var(--top-h);
    left: 0;
    bottom: var(--bottom-h);
    width: 260px;
    max-width: 88vw;
    z-index: 60;
    transform: translateX(-100%);
    transition: transform 280ms var(--ease);
    box-shadow: var(--shadow-lg);
  }
  .sidebar[data-open='1'] { transform: translateX(0); }
  .top-metrics { display: none; }
}

@media (max-width: 760px) {
  :root { --top-h: 46px; }
  .chart-deck {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    height: 300px;
  }
  .chart-deck[data-mode='6'] { height: 460px; }
  .brand-sub { display: none; }
  .readout-bar .ro:nth-child(n + 7) { display: none; }
}

@media (max-width: 520px) {
  .chart-deck { grid-template-columns: 1fr; height: 340px; }
  .chart-deck[data-mode='6'] { grid-template-columns: 1fr; height: 660px; }
}