/* ===== 主题变量：暗黑（默认）/ 明亮 ===== */
:root {
  --bg:            #0d0d0d;
  --fg:            #ddd;
  --panel:         #1a1a1a;
  --panel-border:  #000;
  --btn-bg:        #2a2a2a;
  --btn-fg:        #ccc;
  --btn-border:    #3a3a3a;
  --btn-hover-bg:  #3a3a3a;
  --btn-hover-fg:  #fff;
  --btn-active-bg: #b03030;
  --accent:        #e14b4b;
  --label-fg:      #888;
  --muted:         #999;
  --strong:        #eee;
  --card-bg:       #141414;
  --card-border:   #333;
  --card-shadow:   rgba(0,0,0,.6);
  --modal-bg:      rgba(0,0,0,.78);
  --km-bg:         #101010;
  --statusbar-bg:  #15181c;
  --sep:           #333;
  --idx-name:      #999;
  --idx-up:        #e14b4b;
  --idx-down:      #1cab62;
  --idx-flat:      #aaa;
  --spinner-track: #2a2a2a;
  --select-bg:     #2a2a2a;
  --select-fg:     #ccc;
  --select-border: #3a3a3a;
  --loading-fg:    #bbb;
}

/* 明亮主题：仅反转背景/文字，涨跌仍固定「红涨绿跌」 */
body.theme-light {
  --bg:            #f5f6f7;
  --fg:            #222;
  --panel:         #ffffff;
  --panel-border:  #d9dde1;
  --btn-bg:        #f0f2f5;
  --btn-fg:        #333;
  --btn-border:    #c9ced4;
  --btn-hover-bg:  #e2e6ea;
  --btn-hover-fg:  #000;
  --btn-active-bg: #c0392b;
  --accent:        #c0392b;
  --label-fg:      #666;
  --muted:         #666;
  --strong:        #111;
  --card-bg:       #ffffff;
  --card-border:   #d0d4d8;
  --card-shadow:   rgba(0,0,0,.18);
  --modal-bg:      rgba(255,255,255,.82);
  --km-bg:         #ffffff;
  --statusbar-bg:  #eef1f4;
  --sep:           #d0d4d8;
  --idx-name:      #555;
  --idx-up:        #c0392b;
  --idx-down:      #0a8754;
  --idx-flat:      #777;
  --spinner-track: #dfe3e8;
  --select-bg:     #ffffff;
  --select-fg:     #222;
  --select-border: #c9ced4;
  --loading-fg:    #666;
}

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

html, body {
  width: 100%; height: 100%;
  background: var(--bg);
  font-family: "Microsoft YaHei", "PingFang SC", sans-serif;
  font-size: 12px;
  color: var(--fg);
  overflow: hidden;
}

#app, body { display: flex; flex-direction: column; }

/* ===== 顶部工具栏 ===== */
#toolbar {
  height: 34px;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 0 8px;
  background: var(--panel);
  border-bottom: 1px solid var(--panel-border);
  flex: none;
  user-select: none;
}

#toolbar button {
  background: var(--btn-bg);
  color: var(--btn-fg);
  border: 1px solid var(--btn-border);
  border-radius: 3px;
  padding: 3px 10px;
  cursor: pointer;
  font-size: 12px;
}
#toolbar button:hover { background: var(--btn-hover-bg); color: var(--btn-hover-fg); }
#toolbar button.active { background: var(--btn-active-bg); border-color: var(--btn-active-bg); color: #fff; }

.tab-group { display: flex; gap: 2px; }
.tab-group button { border-radius: 3px 3px 0 0; }

.spacer { flex: 1; }

#btn-back { background: #4a2a2a; border-color: #6a3a3a; color: #f0c0c0; }
#btn-back:hover { background: #6a3a3a; color: #fff; }
.hidden { display: none !important; }

.tool-item { display: flex; align-items: center; gap: 4px; color: var(--label-fg); }
.tool-item select {
  background: var(--select-bg);
  color: var(--select-fg);
  border: 1px solid var(--select-border);
  border-radius: 3px;
  padding: 2px 4px;
  font-size: 12px;
  outline: none;
}

/* ===== 加载等待层（只覆盖图表区域） ===== */
#chart-wrap { position: relative; flex: 1; min-height: 0; }
#chart { width: 100%; height: 100%; }

#loading {
  position: absolute;
  inset: 0;
  z-index: 10;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 14px;
  background: var(--bg);
  color: var(--loading-fg);
  font-size: 14px;
  letter-spacing: 1px;
}
#loading.hidden { display: none; }

.spinner {
  width: 30px;
  height: 30px;
  border: 3px solid var(--spinner-track);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

.loading-text { text-align: center; }
.dots { animation: blink 1.2s steps(4, start) infinite; }
@keyframes blink { to { visibility: hidden; } }

/* ===== 热力图 ===== */

/* ===== 个股 K 线卡片（单击） ===== */
#inspector {
  position: fixed; right: 12px; bottom: 38px; width: 340px;
  background: var(--card-bg); border: 1px solid var(--card-border); border-radius: 4px;
  padding: 8px; z-index: 50; box-shadow: 0 4px 16px var(--card-shadow);
}
.ins-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 6px; }
.ins-head span { font-size: 13px; color: var(--strong); }
.ins-head button, .km-head button {
  background: var(--btn-bg); color: var(--btn-fg); border: 1px solid var(--btn-border);
  border-radius: 3px; width: 22px; height: 22px; line-height: 1; cursor: pointer;
}
#ins-chart { height: 170px; }
#ins-info { margin-top: 6px; font-size: 11px; color: var(--muted); line-height: 1.6; }
#ins-info b { color: var(--strong); font-weight: normal; }

/* ===== K 线全屏弹窗（双击） ===== */
#kline-modal {
  position: fixed; inset: 0; z-index: 100;
  background: var(--modal-bg);
  display: flex; align-items: center; justify-content: center;
}
.km-box {
  width: 92%; height: 88%; background: var(--km-bg);
  border: 1px solid var(--card-border); border-radius: 4px;
  display: flex; flex-direction: column; padding: 8px;
}
.km-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 6px; }
.km-head span { font-size: 15px; color: var(--strong); }
#km-chart { flex: 1; min-height: 0; }

/* ===== 底部状态栏 ===== */
#statusbar {
  height: 26px;
  display: flex;
  align-items: center;
  background: var(--statusbar-bg);
  border-top: 1px solid var(--panel-border);
  padding: 0 8px;
  gap: 16px;
  flex: none;
  overflow: hidden;
  white-space: nowrap;
}

#index-list { display: flex; align-items: center; gap: 10px; overflow: hidden; flex: 1; }

.idx-item { display: flex; gap: 4px; white-space: nowrap; }
.idx-item b { color: var(--strong); font-weight: normal; }
.idx-sep { width: 1px; height: 14px; background: var(--sep); flex: none; }
.idx-name { color: var(--idx-name); }
.idx-up   { color: var(--idx-up); }
.idx-down { color: var(--idx-down); }
.idx-flat { color: var(--idx-flat); }

#clock { color: var(--label-fg); font-family: Consolas, monospace; }