/* ════════════════════════════════════════════════════════════════════
   perf-panel — 完整性能分析面板（dev-only）。液态玻璃可读面（DESIGN.md §6.4）。
   z 9000 = devmode overlay 带（DESIGN.md §8.4.A）。挂 body，盖过 topbar/modal。
   配色：数值 Geist Mono；阈值/相位走 --perf-* token（§3.6）。
   ════════════════════════════════════════════════════════════════════ */

/* [hidden] 必须显式压过下面的 display:flex —— 否则作者 CSS 的 display 覆盖 UA
   的 [hidden]{display:none}，面板永远显示、关不掉（2026-06-21 user 报）。 */
.perf-panel[hidden] { display: none !important; }

.perf-panel {
  position: fixed;
  z-index: 9000;
  width: 380px;
  max-height: 82vh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  background: var(--glass-resident, rgba(20, 20, 24, 0.78));
  backdrop-filter: blur(var(--glass-blur, 24px)) saturate(var(--glass-saturate, 210%));
  -webkit-backdrop-filter: blur(var(--glass-blur, 24px)) saturate(var(--glass-saturate, 210%));
  border: 1px solid var(--glass-border, rgba(13, 13, 15, 0.10));
  border-radius: var(--radius-md, 5px);
  box-shadow: var(--shadow-modal, 0 4px 12px rgba(0, 0, 0, 0.08), 0 24px 64px rgba(0, 0, 0, 0.16));
  font-family: var(--font-ui, 'Geist', system-ui, sans-serif);
  color: var(--ink-1, #0d0d0f);
}

.pp-head {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 7px 8px 7px 12px;
  border-bottom: 1px solid var(--line-1, #e5e5ea);
  cursor: grab;
  user-select: none;
}
.pp-head.is-drag { cursor: grabbing; }
.pp-eyebrow { font-size: 11px; font-weight: 500; letter-spacing: 0.08em; text-transform: uppercase; color: var(--ink-1); }
.pp-sub { font-size: 11px; color: var(--ink-3, #71717a); }
.pp-spacer { flex: 1; }
.pp-x {
  width: 26px; height: 26px;
  display: grid; place-items: center;
  background: transparent; border: none; border-radius: var(--radius-sm, 3px);
  color: var(--ink-2, #3f3f46); cursor: pointer; font-size: 13px;
}
.pp-x:hover { background: var(--overlay-1, rgba(0,0,0,0.04)); color: var(--ink-1); }

.pp-body { padding: 12px; overflow-y: auto; }

/* ── ① Live ── */
.pp-live { margin-bottom: 12px; }
.pp-fps { display: flex; align-items: baseline; gap: 6px; }
.pp-fps b { font-family: var(--font-mono, 'Geist Mono', monospace); font-size: 30px; font-weight: 500; line-height: 1; color: var(--perf-good, #3fb950); }
.pp-fps[data-state="good"] b { color: var(--perf-good, #3fb950); }
.pp-fps[data-state="warn"] b { color: var(--perf-warn, #d29922); }
.pp-fps[data-state="bad"]  b { color: var(--perf-bad,  #f85149); }
.pp-fps-u { font-size: 12px; color: var(--ink-3); }
.pp-fps em { margin-left: auto; font-style: normal; font-size: 11px; font-family: var(--font-mono, monospace); color: var(--ink-3); }

.pp-budget {
  position: relative;
  height: 6px; margin: 8px 0;
  background: var(--surface-3, #eeeef1);
  border-radius: 999px; overflow: hidden;
}
.pp-budget-fill { height: 100%; width: 0%; border-radius: 999px; background: var(--perf-good, #3fb950); transition: width 200ms ease; }
.pp-budget-fill[data-state="good"] { background: var(--perf-good, #3fb950); }
.pp-budget-fill[data-state="warn"] { background: var(--perf-warn, #d29922); }
.pp-budget-fill[data-state="bad"]  { background: var(--perf-bad,  #f85149); }
/* 颜色条 = 帧率向目标的比例：满（右缘）= 达到上限。上限即满条，无需中间标记。 */

.pp-spark { display: block; width: 100%; height: 40px; overflow: visible; }
.pp-spark-line { fill: none; stroke: var(--ink-2, #3f3f46); stroke-width: 1.2; stroke-linejoin: round; stroke-linecap: round; vector-effect: non-scaling-stroke; }
/* 目标帧时参考线（恒在 50% 高，自适应）—— 中性色，达标帧贴线即可，非"jank=红" */
.pp-spark-target { stroke: var(--ink-3, #71717a); stroke-width: 0.5; stroke-dasharray: 2 3; opacity: 0.6; vector-effect: non-scaling-stroke; }

/* ── stat grid ── */
.pp-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; margin-bottom: 12px; }
.pp-stat { display: flex; flex-direction: column; gap: 2px; }
.pp-stat span { font-size: 10px; letter-spacing: 0.04em; text-transform: uppercase; color: var(--ink-3, #71717a); }
.pp-stat b { font-family: var(--font-mono, monospace); font-size: 13px; font-weight: 500; color: var(--ink-1); }

/* ── sections ── */
.pp-sec { padding-top: 12px; margin-top: 4px; border-top: 1px solid var(--line-soft, #efeff2); }
.pp-sec-h { font-size: 12px; font-weight: 500; color: var(--ink-2, #3f3f46); margin-bottom: 9px; }
.pp-sec-h span { font-family: var(--font-mono, monospace); color: var(--ink-1); }
.pp-sec-note { font-weight: 400; color: var(--ink-3); text-transform: uppercase; font-size: 10px; letter-spacing: 0.06em; }

/* ② Frame chain */
.pp-chain { display: flex; height: 16px; border-radius: 4px; overflow: hidden; border: 0.5px solid var(--line-1, #e5e5ea); }
.pp-chain i { display: block; height: 100%; }
.pp-legend { display: flex; flex-wrap: wrap; gap: 6px 14px; margin-top: 10px; font-size: 11px; color: var(--ink-1); }
.pp-legend span { display: flex; align-items: center; gap: 6px; }
.pp-legend i { width: 9px; height: 9px; border-radius: 2px; flex: none; }
.pp-legend em { font-style: normal; font-family: var(--font-mono, monospace); color: var(--ink-3); }

/* ③ Reactive */
.pp-react { display: grid; grid-template-columns: auto 1fr auto 1fr; gap: 4px 8px; align-items: baseline; font-size: 12px; }
.pp-react span { color: var(--ink-3, #71717a); }
.pp-react b { font-family: var(--font-mono, monospace); font-weight: 500; color: var(--ink-1); }

/* Correlated pointer event + synchronous selection subscriber breakdown. */
.pp-event-grid {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 4px 10px;
  align-items: baseline;
  font-size: 12px;
}
.pp-event-grid span { color: var(--ink-3, #71717a); }
.pp-event-grid b {
  font-family: var(--font-mono, monospace);
  font-weight: 500;
  color: var(--ink-1);
}
.pp-effect-list {
  display: grid;
  gap: 4px;
  margin-top: 8px;
  padding-top: 8px;
  border-top: 1px dashed var(--line-soft, #efeff2);
  font-size: 11px;
}
.pp-effect-list span { display: flex; justify-content: space-between; gap: 8px; }
.pp-effect-list i { color: var(--ink-3, #71717a); font-style: normal; }
.pp-effect-list b { color: var(--ink-1); font: 500 11px var(--font-mono, monospace); }
.pp-effect-list em { color: var(--ink-3, #71717a); font-style: normal; }

/* ④ Record */
.pp-rec-row { display: flex; align-items: center; gap: 10px; margin-bottom: 8px; }
.pp-btn {
  height: 28px; padding: 0 10px;
  display: inline-flex; align-items: center; gap: 6px;
  background: transparent; border: 1px solid var(--line-1, #e5e5ea); border-radius: var(--radius-md, 5px);
  color: var(--ink-1); font: 500 12px var(--font-ui, sans-serif); cursor: pointer;
}
.pp-btn:hover { background: var(--overlay-1, rgba(0,0,0,0.04)); }
.pp-rec-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--perf-bad, #f85149); flex: none; }
.pp-rec.is-rec { border-color: var(--perf-bad, #f85149); }
.pp-rec.is-rec .pp-rec-dot { animation: pp-pulse 1s ease-in-out infinite; }
@keyframes pp-pulse { 50% { opacity: 0.3; } }
.pp-rec-status { font-family: var(--font-mono, monospace); font-size: 11px; color: var(--ink-3); }

.pp-report {
  margin: 4px 0 8px; padding: 8px 10px; max-height: 180px; overflow: auto;
  background: var(--surface-3, #1f1f24); border-radius: var(--radius-sm, 3px);
  font-family: var(--font-mono, monospace); font-size: 11px; line-height: 1.5; color: var(--ink-1);
  white-space: pre; tab-size: 2;
}
.pp-rec-actions { display: flex; gap: 8px; margin-bottom: 8px; }
.pp-note { font-size: 10px; line-height: 1.4; color: var(--ink-3, #71717a); }

/* 环境信息（GPU / 系统 / 渲染像素）——静态单行，面板底部。 */
.pp-env {
  margin-top: 12px;
  padding-top: 10px;
  border-top: 1px solid var(--line-soft, #efeff2);
  font-family: var(--font-mono, ui-monospace, monospace);
  font-size: 10px;
  line-height: 1.5;
  color: var(--ink-3, #71717a);
  word-break: break-word;
}
.pp-env:empty { display: none; }