/* ============================================================
   Battery Asset Platform — Shared Styles (v4.0)
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Rajdhani:wght@400;600;700&family=Noto+Sans+SC:wght@300;400;500&display=swap');

/* ── CSS Variables (Dark Theme Default) ── */
:root {
  --bg: #0a0e1a; --bg2: #111827; --bg3: #1a2235;
  --border: #1e3a5f; --accent: #00d4ff; --accent3: #10b981;
  --accent4: #f59e0b; --red: #ef4444; --text: #e2e8f0; --muted: #64748b;
  --tab-bg: #111827; --tab-border: #1e3a5f; --tab-text: #94a3b8;
  --tab-active: #00d4ff; --input-bg: #1a2235; --input-border: #1e3a5f;
  --btn-bg: #111827; --btn-border: #1e3a5f; --btn-text: #64748b;
  --table-bg: #111827; --table-th: #0f1829; --table-td: #111827;
  --table-hover: rgba(0,212,255,0.05); --table-border: #1e3a5f;
  --tag-green-bg: #052e16; --tag-green-text: #4ade80; --tag-green-border: #166534;
  --tag-blue-bg: #0c1a2e; --tag-blue-text: #60a5fa; --tag-blue-border: #1e3a5f;
  --tag-orange-bg: #2d1a00; --tag-orange-text: #fb923c; --tag-orange-border: #7c2d12;
  --tag-red-bg: #2d0a0a; --tag-red-text: #f87171; --tag-red-border: #7f1d1d;
  --tag-gray-bg: #1a2235; --tag-gray-text: #64748b; --tag-gray-border: #334155;
  --alarm-group-bg: #1a1500; --alarm-group-hover: #2a2000;
  --alarm-expand-bg: #0f1829; --detail-th-bg: #1a2235;
  --shadow: rgba(0,0,0,0.3);
}

/* ── Light Theme Overrides ── */
body.light {
  --bg: #f0f2f5; --bg2: #ffffff; --bg3: #f5f5f5;
  --border: #e0e0e0; --accent: #1890ff; --accent3: #10b981;
  --accent4: #f59e0b; --red: #ef4444; --text: #1a1a2e; --muted: #888;
  --tab-bg: #ffffff; --tab-border: #e0e0e0; --tab-text: #666;
  --tab-active: #1890ff; --input-bg: #fff; --input-border: #d9d9d9;
  --btn-bg: #fff; --btn-border: #d9d9d9; --btn-text: #333;
  --table-bg: #fff; --table-th: #fafafa; --table-td: #fff;
  --table-hover: #e6f7ff; --table-border: #e8e8e8;
  --tag-green-bg: #f6ffed; --tag-green-text: #52c41a; --tag-green-border: #b7eb8f;
  --tag-blue-bg: #e6f7ff; --tag-blue-text: #1890ff; --tag-blue-border: #91d5ff;
  --tag-orange-bg: #fff7e6; --tag-orange-text: #fa8c16; --tag-orange-border: #ffd591;
  --tag-red-bg: #fff1f0; --tag-red-text: #f5222d; --tag-red-border: #ffa39e;
  --tag-gray-bg: #fafafa; --tag-gray-text: #999; --tag-gray-border: #d9d9d9;
  --alarm-group-bg: #fffbe6; --alarm-group-hover: #fff1b8;
  --alarm-expand-bg: #fafafa; --detail-th-bg: #f0f0f0;
  --shadow: rgba(0,0,0,0.08);
}

body.light .header { background: linear-gradient(135deg,#1890ff 0%,#096dd9 100%); }
body.light .header::after { background: linear-gradient(90deg,transparent,#fff,transparent); }
body.light .logo { color: #fff; text-shadow: none; }
body.light .logo span { color: #e6f7ff; }
body.light .nav-link { background: #096dd9; border-color: rgba(255,255,255,0.3); color: rgba(255,255,255,0.8); }
body.light .nav-link:hover { border-color: #fff; color: #fff; background: rgba(255,255,255,0.2); }
body.light .nav-link.active { border-color: #fff; color: #fff; background: rgba(255,255,255,0.25); }
body.light #themeBtn { background: #096dd9; border-color: rgba(255,255,255,0.3); color: #fff; }
body.light body::before { background: none; }

/* ── Global Reset ── */
* { box-sizing: border-box; margin: 0; padding: 0; }

/* ── Body ── */
body {
  font-family: 'Noto Sans SC', sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
}
body::before {
  content: '';
  position: fixed; inset: 0; pointer-events: none; z-index: 0;
  background: repeating-linear-gradient(0deg, transparent, transparent 2px, rgba(0,212,255,0.015) 2px, rgba(0,212,255,0.015) 4px);
}

/* ── Header ── */
.header {
  position: relative;
  padding: 16px 24px;
  background: linear-gradient(135deg, #0a0e1a 0%, #111827 100%);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  z-index: 10;
}
.header::after {
  content: '';
  position: absolute; bottom: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, #00d4ff, transparent);
}

/* ── Logo ── */
.logo {
  font-family: 'Rajdhani', sans-serif;
  font-size: 20px; font-weight: 700;
  letter-spacing: 2px;
  color: #00d4ff;
  text-shadow: 0 0 20px rgba(0,212,255,0.5);
}
.logo span { color: #e2e8f0; }

/* ── Navigation ── */
.nav-links { display: flex; gap: 8px; align-items: center; }
.nav-link {
  padding: 5px 12px;
  border: 1px solid #1e3a5f;
  border-radius: 4px;
  font-size: 12px;
  color: #64748b;
  text-decoration: none;
  transition: all .2s;
  background: #111827;
  white-space: nowrap;
}
.nav-link:hover { border-color: #00d4ff; color: #00d4ff; background: rgba(0,212,255,0.05); }
.nav-link.active { border-color: #00d4ff; color: #00d4ff; background: rgba(0,212,255,0.08); }
#themeBtn {
  padding: 5px 10px;
  border: 1px solid #1e3a5f; border-radius: 4px;
  font-size: 12px; color: #64748b;
  background: #111827;
  cursor: pointer; transition: all .2s;
}
.nav-link-danger { border-color: #ef4444 !important; color: #ef4444 !important; }

/* ── Tabs ── */
.tabs {
  display: flex;
  background: var(--tab-bg);
  border-bottom: 2px solid var(--tab-border);
  padding: 0 24px;
  overflow-x: auto;
}
.tab {
  padding: 14px 20px;
  cursor: pointer;
  font-size: 14px;
  color: var(--tab-text);
  border-bottom: 3px solid transparent;
  white-space: nowrap;
  transition: all .2s;
}
.tab:hover { color: var(--tab-active); }
.tab.active { color: var(--tab-active); border-bottom-color: var(--tab-active); font-weight: bold; }

/* ── Search Bar ── */
.search-bar { background: var(--bg2); padding: 14px 24px; border-bottom: 1px solid var(--border); }
.search-row { display: flex; flex-wrap: wrap; gap: 12px; align-items: flex-end; }
.search-item { display: flex; flex-direction: column; gap: 4px; }
.search-item label { font-size: 12px; color: var(--muted); }
.search-item input, .search-item select {
  padding: 6px 10px; border: 1px solid var(--input-border);
  border-radius: 4px; font-size: 13px; outline: none;
  background: var(--input-bg); color: var(--text);
}
.search-item input:focus, .search-item select:focus { border-color: var(--accent); }

/* ── Toolbar ── */
.toolbar {
  display: flex; align-items: center; gap: 12px;
  padding: 10px 24px; background: var(--bg2);
  border-bottom: 1px solid var(--border); flex-wrap: wrap;
}

/* ── Buttons ── */
.btn {
  padding: 6px 16px; border: 1px solid var(--btn-border); border-radius: 4px;
  background: var(--btn-bg); color: var(--btn-text);
  cursor: pointer; font-size: 13px; transition: all .2s;
}
.btn:hover { border-color: var(--accent); color: var(--accent); }
.btn.primary { background: var(--accent); color: #fff; border-color: var(--accent); }
.btn.primary:hover { opacity: 0.85; }

/* ── Switch ── */
.switch-wrap { display: flex; align-items: center; gap: 8px; font-size: 13px; color: var(--text); }
.switch { position: relative; width: 40px; height: 22px; }
.switch input { opacity: 0; width: 0; height: 0; }
.slider {
  position: absolute; inset: 0; background: #ccc; border-radius: 22px;
  cursor: pointer; transition: .3s;
}
.slider::before {
  content: ''; position: absolute; width: 16px; height: 16px;
  left: 3px; bottom: 3px; background: white; border-radius: 50%; transition: .3s;
}
input:checked + .slider { background: var(--accent); }
input:checked + .slider::before { transform: translateX(18px); }
.status-text { font-size: 12px; color: var(--muted); }

/* ── Content / Panels ── */
.content { padding: 16px 24px; background: var(--bg); }
.panel { display: none; }
.panel.active { display: block; }

/* ── Tables ── */
.table-wrap { background: var(--table-bg); border-radius: 6px; overflow: auto; box-shadow: 0 1px 4px var(--shadow); }
table { border-collapse: collapse; width: 100%; min-width: 600px; }
th {
  background: var(--table-th); padding: 12px 10px; text-align: left;
  font-size: 13px; color: var(--muted);
  border-bottom: 1px solid var(--table-border); white-space: nowrap;
}
td {
  padding: 10px; font-size: 13px;
  border-bottom: 1px solid var(--table-border); color: var(--text);
}
tr:hover td { background: var(--table-hover); }

/* ── Tags ── */
.tag {
  display: inline-block; padding: 2px 8px; border-radius: 10px; font-size: 12px;
}
.tag-green  { background: var(--tag-green-bg);  color: var(--tag-green-text);  border: 1px solid var(--tag-green-border); }
.tag-blue   { background: var(--tag-blue-bg);   color: var(--tag-blue-text);   border: 1px solid var(--tag-blue-border); }
.tag-orange { background: var(--tag-orange-bg); color: var(--tag-orange-text); border: 1px solid var(--tag-orange-border); }
.tag-red    { background: var(--tag-red-bg);    color: var(--tag-red-text);    border: 1px solid var(--tag-red-border); }
.tag-gray   { background: var(--tag-gray-bg);   color: var(--tag-gray-text);   border: 1px solid var(--tag-gray-border); }

/* ── Loading ── */
.loading { text-align: center; padding: 40px; color: var(--muted); font-size: 14px; }

/* ── Pagination ── */
.pagination {
  display: flex; align-items: center; justify-content: space-between;
  padding: 12px 16px; font-size: 13px; color: var(--text);
  background: var(--table-bg); border-top: 1px solid var(--table-border); flex-wrap: wrap; gap: 8px;
}
.page-right { display: flex; align-items: center; gap: 8px; }
.page-btn {
  padding: 4px 10px; border: 1px solid var(--btn-border); border-radius: 4px;
  cursor: pointer; background: var(--btn-bg); color: var(--btn-text); font-size: 13px;
}
.page-btn:hover { border-color: var(--accent); color: var(--accent); }
.page-btn:disabled { color: var(--muted); cursor: not-allowed; opacity: 0.4; }

/* ── Alarm Expand ── */
.alarm-group td { background: var(--alarm-group-bg); font-weight: 500; }
.alarm-group:hover td { background: var(--alarm-group-hover); }
.alarm-expand { display: none; }
.alarm-expand td { background: var(--alarm-expand-bg); font-size: 12px; color: var(--muted); padding: 6px 10px; }
.alarm-expand.show { display: table-row; }
.expand-btn { cursor: pointer; font-size: 16px; color: var(--accent); user-select: none; display: inline-block; width: 20px; text-align: center; transition: transform .2s; }
.expand-btn.open { transform: rotate(90deg); }
.count-badge { display: inline-block; background: #ff4d4f; color: white; border-radius: 10px; padding: 1px 8px; font-size: 12px; font-weight: bold; }
.detail-table { width: 100%; border-collapse: collapse; margin: 4px 0; }
.detail-table th { background: var(--detail-th-bg); padding: 6px 8px; font-size: 12px; font-weight: normal; color: var(--muted); border: 1px solid var(--table-border); }
.detail-table td { padding: 5px 8px; font-size: 12px; border: 1px solid var(--table-border); color: var(--text); }

/* ── Stats Cards ── */
.stats-row { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; padding: 20px 32px 0; position: relative; z-index: 1; }
.stat-card { background: var(--bg2); border: 1px solid var(--border); border-radius: 8px; padding: 18px 20px; position: relative; overflow: hidden; transition: border-color .2s; }
.stat-card::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 2px; }
.stat-card:nth-child(1)::before { background: var(--accent); }
.stat-card:nth-child(2)::before { background: var(--accent3); }
.stat-card:nth-child(3)::before { background: var(--accent4); }
.stat-card:nth-child(4)::before { background: var(--red); }
.stat-card:hover { border-color: rgba(0,212,255,0.3); }
.stat-label { font-size: 12px; color: var(--muted); letter-spacing: 1px; margin-bottom: 8px; }
.stat-value { font-family: 'Rajdhani', sans-serif; font-size: 32px; font-weight: 700; line-height: 1; }
.stat-card:nth-child(1) .stat-value { color: var(--accent); }
.stat-card:nth-child(2) .stat-value { color: var(--accent3); }
.stat-card:nth-child(3) .stat-value { color: var(--accent4); }
.stat-card:nth-child(4) .stat-value { color: var(--red); }
.stat-sub { font-size: 12px; color: var(--muted); margin-top: 6px; }
.stat-icon { position: absolute; right: 16px; top: 50%; transform: translateY(-50%); font-size: 32px; opacity: 0.15; }

/* ── Chart Cards ── */
.charts-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; padding: 16px 32px; position: relative; z-index: 1; }
.chart-card { background: var(--bg2); border: 1px solid var(--border); border-radius: 8px; overflow: hidden; transition: border-color .2s, box-shadow .2s; }
.chart-card:hover { border-color: rgba(0,212,255,0.25); box-shadow: 0 0 20px rgba(0,212,255,0.05); }
.chart-card.wide { grid-column: span 2; }
.chart-header { padding: 14px 20px; border-bottom: 1px solid var(--border); display: flex; align-items: center; justify-content: space-between; }
.chart-title { font-size: 13px; font-weight: 500; color: var(--text); letter-spacing: 0.5px; display: flex; align-items: center; gap: 8px; }
.chart-title::before { content: ''; width: 3px; height: 14px; background: var(--accent); border-radius: 2px; display: inline-block; }
.chart-box { width: 100%; height: 280px; }
.chart-box-lg { width: 100%; height: 320px; }
.ctrl { display: flex; align-items: center; gap: 8px; }
.ctrl select, .ctrl input {
  background: var(--bg3); border: 1px solid var(--border); border-radius: 4px;
  padding: 4px 8px; font-size: 12px; color: var(--text); outline: none;
}
.ctrl select:focus, .ctrl input:focus { border-color: var(--accent); }
.ctrl button {
  background: rgba(0,212,255,0.1); border: 1px solid var(--accent);
  border-radius: 4px; padding: 4px 12px; font-size: 12px; color: var(--accent); cursor: pointer;
}
.ctrl button:hover { background: rgba(0,212,255,0.2); }
.footer { text-align: center; padding: 16px; color: var(--muted); font-size: 12px; border-top: 1px solid var(--border); position: relative; z-index: 1; }

/* ── Detail Page Components ── */
.battery-header { display: flex; align-items: center; gap: 16px; margin-bottom: 20px; flex-wrap: wrap; }
.battery-code { font-family: 'Rajdhani', sans-serif; font-size: 24px; font-weight: 700; color: var(--accent); letter-spacing: 2px; }
.back-btn { padding: 5px 14px; border: 1px solid var(--border); border-radius: 4px; font-size: 12px; color: var(--muted); cursor: pointer; background: var(--bg2); text-decoration: none; transition: all .2s; }
.back-btn:hover { border-color: var(--accent); color: var(--accent); }
.info-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-bottom: 16px; }
.card-component { background: var(--bg2); border: 1px solid var(--border); border-radius: 8px; overflow: hidden; }
.card-component.wide { grid-column: span 2; }
.card-component-header { padding: 12px 16px; border-bottom: 1px solid var(--border); display: flex; align-items: center; gap: 8px; }
.card-component-title { font-size: 13px; color: var(--text); display: flex; align-items: center; gap: 8px; }
.card-component-title::before { content: ''; width: 3px; height: 13px; background: var(--accent); border-radius: 2px; display: inline-block; }
.info-list { padding: 12px 16px; }
.info-row { display: flex; justify-content: space-between; align-items: center; padding: 6px 0; border-bottom: 1px solid #0f1829; font-size: 13px; }
.info-row:last-child { border-bottom: none; }
.info-key { color: var(--muted); }
.info-val { color: var(--text); font-weight: 500; }

/* ── Query Page ── */
.main-content { padding: 24px 32px; position: relative; z-index: 1; }
.type-tabs { display: flex; gap: 8px; margin-bottom: 20px; }
.type-tab {
  padding: 8px 20px; border: 1px solid var(--border); border-radius: 6px;
  font-size: 13px; color: var(--muted); cursor: pointer;
  background: var(--bg2); transition: all .2s;
}
.type-tab:hover { border-color: var(--accent); color: var(--accent); }
.type-tab.active { border-color: var(--accent); color: var(--accent); background: rgba(0,212,255,0.08); }
.search-card { background: var(--bg2); border: 1px solid var(--border); border-radius: 8px; padding: 20px; margin-bottom: 16px; }
.btn-primary { background: #1890ff; color: #fff; border-color: #1890ff; }
.btn-primary:hover { background: #40a9ff; }
.btn-reset { background: var(--bg3); color: var(--muted); border-color: var(--border); }
.btn-reset:hover { border-color: var(--accent); color: var(--accent); }
.result-card { background: var(--bg2); border: 1px solid var(--border); border-radius: 8px; overflow: hidden; }
.result-header { padding: 12px 20px; border-bottom: 1px solid var(--border); display: flex; align-items: center; justify-content: space-between; }
.result-title { font-size: 13px; color: var(--text); display: flex; align-items: center; gap: 8px; }
.result-title::before { content: ''; width: 3px; height: 14px; background: var(--accent); border-radius: 2px; display: inline-block; }
.result-count { font-size: 12px; color: var(--muted); }
.loading-row td { text-align: center; padding: 40px; color: var(--muted); font-size: 13px; }
.pagination-query { display: flex; align-items: center; justify-content: space-between; padding: 12px 20px; border-top: 1px solid var(--border); flex-wrap: wrap; gap: 8px; }
.page-info { font-size: 12px; color: var(--muted); }
.page-btns { display: flex; gap: 6px; }
.page-btn-ghost { padding: 4px 12px; border: 1px solid var(--border); border-radius: 4px; background: var(--bg3); color: var(--muted); cursor: pointer; font-size: 12px; }
.page-btn-ghost:hover { border-color: var(--accent); color: var(--accent); }
.page-btn-ghost:disabled { opacity: 0.4; cursor: not-allowed; }
.page-btn-ghost.current { border-color: var(--accent); color: var(--accent); background: rgba(0,212,255,0.08); }

/* ── Ranking Page ── */
.page-title { font-size: 16px; color: var(--text); margin-bottom: 20px; display: flex; align-items: center; justify-content: space-between; }
.page-title span { font-size: 12px; color: var(--muted); }
.ranking-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
.rank-card { background: var(--bg2); border: 1px solid var(--border); border-radius: 8px; overflow: hidden; transition: border-color .2s, box-shadow .2s; }
.rank-card:hover { border-color: rgba(0,212,255,0.25); box-shadow: 0 0 20px rgba(0,212,255,0.05); }
.rank-card.wide { grid-column: span 2; }
.rank-header { padding: 14px 20px; border-bottom: 1px solid var(--border); display: flex; align-items: center; gap: 10px; }
.rank-icon { font-size: 18px; }
.rank-title { font-size: 13px; font-weight: 500; color: var(--text); }
.rank-sub { font-size: 11px; color: var(--muted); margin-left: auto; }
.rank-list { padding: 8px 0; }
.rank-item { display: flex; align-items: center; gap: 12px; padding: 10px 20px; transition: background .15s; }
.rank-item:hover { background: rgba(0,212,255,0.03); }
.rank-no { font-family: 'Rajdhani', sans-serif; font-size: 18px; font-weight: 700; width: 28px; text-align: center; flex-shrink: 0; }
.rank-no.no1 { color: #ffd700; text-shadow: 0 0 10px rgba(255,215,0,0.5); }
.rank-no.no2 { color: #c0c0c0; }
.rank-no.no3 { color: #cd7f32; }
.rank-no.other { color: var(--muted); font-size: 14px; }
.rank-code { font-size: 13px; color: var(--text); flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.rank-value { font-family: 'Rajdhani', sans-serif; font-size: 16px; font-weight: 600; flex-shrink: 0; }
.rank-unit { font-size: 11px; color: var(--muted); margin-left: 2px; }
.rank-bar-wrap { flex: 1; height: 4px; background: var(--bg3); border-radius: 2px; overflow: hidden; }
.rank-bar { height: 100%; border-radius: 2px; transition: width .5s; }
.loading-text { text-align: center; padding: 30px; color: var(--muted); font-size: 13px; }
.medal { font-size: 16px; }

/* ── User Management ── */
.user-main { padding: 24px 32px; position: relative; z-index: 1; }
.user-card { background: var(--bg2); border: 1px solid var(--border); border-radius: 8px; overflow: hidden; margin-bottom: 16px; }
.user-card-header { padding: 14px 20px; border-bottom: 1px solid var(--border); display: flex; align-items: center; justify-content: space-between; }
.user-card-title { font-size: 13px; color: var(--text); display: flex; align-items: center; gap: 8px; }
.user-card-title::before { content: ''; width: 3px; height: 14px; background: var(--accent); border-radius: 2px; display: inline-block; }
.add-form { padding: 16px 20px; display: flex; flex-wrap: wrap; gap: 12px; align-items: flex-end; border-bottom: 1px solid var(--border); }
.form-item { display: flex; flex-direction: column; gap: 4px; }
.form-item label { font-size: 12px; color: var(--muted); }
.form-item input, .form-item select { background: var(--bg3); border: 1px solid var(--border); border-radius: 4px; padding: 7px 10px; font-size: 13px; color: var(--text); outline: none; }
.form-item input:focus, .form-item select:focus { border-color: var(--accent); }
.btn-danger { background: transparent; color: #ef4444; border-color: #ef4444; }
.btn-danger:hover { background: rgba(239,68,68,0.1); }
.btn-warning { background: transparent; color: #f59e0b; border-color: #f59e0b; }
.btn-warning:hover { background: rgba(245,158,11,0.1); }
.modal-mask { display: none; position: fixed; inset: 0; background: rgba(0,0,0,0.6); z-index: 1000; align-items: center; justify-content: center; }
.modal-mask.show { display: flex; }
.modal { background: var(--bg2); border: 1px solid var(--border); border-radius: 8px; padding: 24px; width: 360px; }
.modal-title { font-size: 14px; color: var(--accent); margin-bottom: 16px; }
.modal-row { margin-bottom: 12px; }
.modal-row label { display: block; font-size: 12px; color: var(--muted); margin-bottom: 4px; }
.modal-row input { width: 100%; background: var(--bg3); border: 1px solid var(--border); border-radius: 4px; padding: 8px 10px; font-size: 13px; color: var(--text); outline: none; }
.modal-row input:focus { border-color: var(--accent); }
.modal-btns { display: flex; gap: 8px; justify-content: flex-end; margin-top: 16px; }
.msg { padding: 8px 16px; border-radius: 4px; font-size: 12px; margin-bottom: 12px; display: none; }
.msg-success { background: rgba(16,185,129,0.1); color: #10b981; border: 1px solid #10b981; }
.msg-error { background: rgba(239,68,68,0.1); color: #ef4444; border: 1px solid #ef4444; }

/* ── Map Page ── */
.map-wrap { flex: 1; position: relative; z-index: 1; }
#mapContainer { width: 100%; height: 100%; }
.control-panel { position: absolute; top: 16px; left: 16px; z-index: 1000; background: rgba(17,24,39,0.95); border: 1px solid var(--border); border-radius: 8px; padding: 16px; width: 220px; backdrop-filter: blur(8px); }
.panel-title { font-size: 13px; color: var(--accent); margin-bottom: 12px; font-weight: 500; }
.stat-item { display: flex; justify-content: space-between; align-items: center; margin-bottom: 8px; font-size: 12px; }
.stat-item .label { color: var(--muted); }
.stat-item .val { font-family: 'Rajdhani', sans-serif; font-size: 15px; font-weight: 600; }
.val-blue   { color: #00d4ff; }
.val-green  { color: #10b981; }
.val-orange { color: #f59e0b; }
.val-red    { color: #ef4444; }
.filter-label { font-size: 12px; color: var(--muted); margin-bottom: 6px; }
.filter-btns { display: flex; flex-wrap: wrap; gap: 5px; margin-bottom: 10px; }
.filter-btn { padding: 4px 10px; border-radius: 12px; font-size: 11px; cursor: pointer; border: 1px solid; transition: all .2s; }
.filter-btn.all    { border-color: #00d4ff; color: #00d4ff; background: rgba(0,212,255,0.1); }
.filter-btn.charge { border-color: #3b82f6; color: #3b82f6; background: rgba(59,130,246,0.1); }
.filter-btn.discharge { border-color: #10b981; color: #10b981; background: rgba(16,185,129,0.1); }
.filter-btn.offline { border-color: #64748b; color: #64748b; background: rgba(100,116,139,0.1); }
.filter-btn.active, .filter-btn:hover { opacity: 1; filter: brightness(1.3); }
.filter-btn.inactive { opacity: 0.4; }
.refresh-btn { width: 100%; padding: 7px; border: 1px solid var(--accent); border-radius: 4px; background: rgba(0,212,255,0.1); color: var(--accent); font-size: 12px; cursor: pointer; font-family: 'Noto Sans SC', sans-serif; transition: all .2s; margin-top: 4px; }
.refresh-btn:hover { background: rgba(0,212,255,0.2); }
.auto-refresh { display: flex; align-items: center; gap: 6px; font-size: 11px; color: var(--muted); margin-top: 8px; }
.switch-sm { position: relative; width: 32px; height: 18px; }
.switch-sm input { opacity: 0; width: 0; height: 0; }
.slider-sm { position: absolute; inset: 0; background: #333; border-radius: 18px; cursor: pointer; transition: .3s; }
.slider-sm::before { content: ''; position: absolute; width: 12px; height: 12px; left: 3px; bottom: 3px; background: white; border-radius: 50%; transition: .3s; }
input:checked + .slider-sm { background: var(--accent); }
input:checked + .slider-sm::before { transform: translateX(14px); }
.legend-map { position: absolute; bottom: 16px; left: 16px; z-index: 1000; background: rgba(17,24,39,0.95); border: 1px solid var(--border); border-radius: 8px; padding: 12px 16px; backdrop-filter: blur(8px); }
.legend-title { font-size: 11px; color: var(--muted); margin-bottom: 8px; }
.legend-item { display: flex; align-items: center; gap: 8px; font-size: 11px; color: var(--text); margin-bottom: 5px; }
.legend-dot { width: 10px; height: 10px; border-radius: 50%; flex-shrink: 0; }
.info-popup { position: absolute; top: 16px; right: 16px; z-index: 1000; background: rgba(17,24,39,0.97); border: 1px solid var(--accent); border-radius: 8px; padding: 16px; width: 240px; backdrop-filter: blur(8px); display: none; }
.info-popup.show { display: block; }
.popup-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 12px; }
.popup-title { font-size: 13px; color: var(--accent); font-weight: 500; }
.popup-close { cursor: pointer; color: var(--muted); font-size: 16px; line-height: 1; }
.popup-close:hover { color: var(--text); }
.popup-row { display: flex; justify-content: space-between; font-size: 12px; margin-bottom: 6px; }
.popup-row .key { color: var(--muted); }
.popup-row .val { color: var(--text); font-weight: 500; }
.map-body { font-family: 'Noto Sans SC', sans-serif; background: var(--bg); color: var(--text); height: 100vh; display: flex; flex-direction: column; }

/* ── Dashboard-specific (kept for compatibility) ── */
.dash-body {
  margin: 0; padding: 0; height: 100%; width: 100%; overflow: hidden;
  background:
    radial-gradient(circle at 50% -10%, rgba(39,113,255,0.22), transparent 32%),
    radial-gradient(circle at 85% 22%, rgba(34,228,255,0.10), transparent 20%),
    radial-gradient(circle at 18% 75%, rgba(35,92,255,0.12), transparent 28%),
    linear-gradient(180deg, #030814 0%, #071325 34%, #08162d 100%);
  color: #f4fbff;
  font-family: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: 12px;
  letter-spacing: 0.2px;
}

/* ── Responsive ── */
@media (max-width: 768px) {
  .header { padding: 12px 16px; }
  .logo { font-size: 16px; }
  .nav-link { padding: 4px 8px; font-size: 11px; }
  .tabs { padding: 0 8px; }
  .tab { padding: 10px 12px; font-size: 13px; }
  .search-bar { padding: 10px 12px; }
  .search-row { gap: 8px; }
  .search-item input, .search-item select { width: 100% !important; }
  .search-item { width: calc(50% - 4px); }
  .toolbar { padding: 8px 12px; gap: 8px; }
  .content { padding: 10px 12px; }
  th, td { padding: 8px 6px; font-size: 12px; }
  .pagination { padding: 8px 12px; }
  .stats-row { grid-template-columns: repeat(2, 1fr); padding: 12px 12px 0; gap: 10px; }
  .stat-value { font-size: 24px; }
  .charts-grid { grid-template-columns: 1fr; padding: 10px 12px; gap: 10px; }
  .chart-card.wide { grid-column: span 1; }
  .chart-box { height: 220px; }
  .chart-box-lg { height: 240px; }
  .chart-header { padding: 10px 12px; flex-wrap: wrap; gap: 8px; }
  .ctrl { flex-wrap: wrap; }
  .ctrl input { width: 120px !important; }
  .main-content { padding: 12px; }
  .type-tabs { flex-wrap: wrap; gap: 6px; }
  .type-tab { padding: 6px 12px; font-size: 12px; }
  .search-card { padding: 12px; }
  .page-title, .user-main { padding: 12px; }
  .ranking-grid { grid-template-columns: 1fr; gap: 12px; }
  .rank-card.wide { grid-column: span 1; }
  .rank-item { padding: 8px 12px; gap: 8px; }
  .info-grid { grid-template-columns: 1fr; }
  .battery-header { padding: 0 12px; }
  .map-body .header { padding: 10px 12px; }
  .control-panel { width: 160px; padding: 10px; top: 10px; left: 10px; }
  .info-popup { width: 180px; right: 10px; top: 10px; }
  .legend-map { bottom: 10px; left: 10px; }
}