/* 融虎观数 RonhuStats —— 极简硬核主题
   扁平、直角、等宽数字 + 微软雅黑、青/绿强调、明暗双主题、留白。 */
:root {
    --bg: #f4f7f7;
    --card: #ffffff;
    --fg: #16242a;
    --muted: #6b7d80;
    --line: #e3eaea;
    --line-strong: #cfdada;
    --acc: #0fb6a3;
    --acc2: #16a34a;
    --acc-soft: #e6f7f4;
    --danger: #e0564b;
    --warn: #e0a83b;
    --chip: #eef3f3;
    --shadow: none;
    --mono: ui-monospace, "SFMono-Regular", Menlo, Consolas, "Liberation Mono", monospace;
    --sans: "Microsoft YaHei", -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;
}
[data-theme="dark"] {
    --bg: #0e1416;
    --card: #151c1e;
    --fg: #d7e3e3;
    --muted: #819595;
    --line: #243032;
    --line-strong: #324041;
    --acc: #2dd4bf;
    --acc2: #22c55e;
    --acc-soft: #10302c;
    --danger: #f87171;
    --warn: #fbbf24;
    --chip: #1d2628;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
    background: var(--bg);
    color: var(--fg);
    font-family: var(--sans);
    font-size: 14px;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}
a { color: var(--acc); text-decoration: none; }
a:hover { color: var(--acc2); }
.mono { font-family: var(--mono); font-variant-numeric: tabular-nums; }
h1, h2, h3, h4 { font-weight: 600; letter-spacing: .5px; margin: 0 0 12px; }
.muted { color: var(--muted); }
.num { font-family: var(--mono); font-variant-numeric: tabular-nums; letter-spacing: -.3px; }

/* 布局 */
.app { display: grid; grid-template-columns: 232px 1fr; min-height: 100vh; }
.sidebar {
    background: var(--card);
    border-right: 1px solid var(--line);
    padding: 22px 16px;
    position: sticky; top: 0; height: 100vh; overflow-y: auto;
}
.brand { display: flex; align-items: center; gap: 10px; margin-bottom: 26px; padding: 0 6px; }
.brand .logo {
    width: 30px; height: 30px; background: var(--acc); color: #fff;
    display: flex; align-items: center; justify-content: center;
    font-weight: 700; font-size: 16px; border-radius: 0;
}
.brand .name { font-size: 16px; font-weight: 700; letter-spacing: 2px; }
.brand .name small { display: block; font-size: 10px; color: var(--muted); letter-spacing: 1px; font-weight: 400; }

.nav { display: flex; flex-direction: column; gap: 2px; }
.nav a {
    display: flex; align-items: center; gap: 10px;
    padding: 9px 12px; color: var(--fg); border-radius: 0;
    font-size: 14px; border-left: 3px solid transparent;
}
.nav a:hover { background: var(--chip); color: var(--fg); }
.nav a.active { background: var(--acc-soft); color: var(--acc); border-left-color: var(--acc); font-weight: 600; }
.nav a .ic { width: 18px; text-align: center; opacity: .9; }

.main { display: flex; flex-direction: column; min-width: 0; }
.topbar {
    display: flex; align-items: center; gap: 14px;
    padding: 14px 24px; background: var(--card); border-bottom: 1px solid var(--line);
    position: sticky; top: 0; z-index: 10;
}
.topbar .title { font-size: 16px; font-weight: 600; letter-spacing: 1px; }
.topbar .spacer { flex: 1; }

.content { padding: 22px 24px 40px; }

/* 控件 */
.btn {
    display: inline-flex; align-items: center; gap: 6px;
    background: var(--acc); color: #fff; border: 1px solid var(--acc);
    padding: 8px 16px; font-size: 13px; cursor: pointer; border-radius: 0;
    font-family: var(--sans); letter-spacing: .5px;
}
.btn:hover { background: var(--acc2); border-color: var(--acc2); color: #fff; }
.btn.ghost { background: transparent; color: var(--fg); border-color: var(--line-strong); }
.btn.ghost:hover { border-color: var(--acc); color: var(--acc); background: var(--acc-soft); }
.btn.sm { padding: 5px 11px; font-size: 12px; }

select, input[type="text"], input[type="password"], input[type="number"], input[type="date"], textarea {
    background: var(--card); color: var(--fg);
    border: 1px solid var(--line-strong); border-radius: 0;
    padding: 7px 10px; font-size: 13px; font-family: var(--sans); min-width: 0;
}
select:focus, input:focus, textarea:focus { outline: none; border-color: var(--acc); }
.field { display: flex; flex-direction: column; gap: 6px; margin-bottom: 16px; }
.field label { font-size: 12px; color: var(--muted); letter-spacing: .5px; }

/* 卡片 / KPI */
.grid { display: grid; gap: 16px; }
.kpis { grid-template-columns: repeat(6, 1fr); }
.cards-2 { grid-template-columns: repeat(2, 1fr); }
.cards-3 { grid-template-columns: repeat(3, 1fr); }
.card {
    background: var(--card); border: 1px solid var(--line); border-radius: 0;
    padding: 18px 20px;
}
.card .card-h { display: flex; align-items: center; justify-content: space-between; margin-bottom: 14px; }
.card .card-h h3 { font-size: 14px; margin: 0; letter-spacing: 1px; }
.card .card-h .sub { font-size: 12px; color: var(--muted); }

.kpi { padding: 16px 18px; }
.kpi .label { font-size: 12px; color: var(--muted); letter-spacing: 1px; margin-bottom: 8px; }
.kpi .val { font-family: var(--mono); font-size: 26px; font-weight: 600; line-height: 1; }
.kpi .delta { font-size: 12px; margin-top: 8px; }
.kpi .delta.up { color: var(--acc2); }
.kpi .delta.down { color: var(--danger); }
.kpi .delta.flat { color: var(--muted); }

/* 表格 */
table { width: 100%; border-collapse: collapse; font-size: 13px; }
th, td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--line); }
th { color: var(--muted); font-weight: 600; font-size: 12px; letter-spacing: .5px; white-space: nowrap; }
td.num, th.num { text-align: right; font-family: var(--mono); font-variant-numeric: tabular-nums; }
tr:hover td { background: var(--chip); }
.tbl-wrap { overflow-x: auto; }

/* 徽标 / 进度条 */
.chip { display: inline-block; background: var(--chip); color: var(--fg); padding: 2px 9px; font-size: 12px; border-radius: 0; }
.bar { height: 8px; background: var(--line); position: relative; }
.bar > span { position: absolute; left: 0; top: 0; bottom: 0; background: var(--acc); }
.bar.g2 > span { background: var(--acc2); }
.rank { width: 22px; height: 22px; line-height: 22px; text-align: center; background: var(--chip); color: var(--muted); font-family: var(--mono); font-size: 12px; }

/* 登录 */
.auth-wrap { min-height: 100vh; display: flex; align-items: center; justify-content: center; padding: 20px; }
.auth-card { width: 380px; max-width: 100%; background: var(--card); border: 1px solid var(--line); padding: 38px 34px; }
.auth-card .brand { justify-content: center; margin-bottom: 22px; }
.err { background: var(--acc-soft); border-left: 3px solid var(--danger); color: var(--danger); padding: 10px 12px; font-size: 13px; margin-bottom: 16px; }

/* 站点切换 */
.site-switch { min-width: 200px; }

/* 实时 */
.live-dot { display: inline-block; width: 8px; height: 8px; background: var(--acc2); border-radius: 50%; margin-right: 6px; animation: pulse 1.4s infinite; }
@keyframes pulse { 0%{opacity:1} 50%{opacity:.3} 100%{opacity:1} }
.online-row td { font-size: 13px; }

/* 图表容器 */
.chart { width: 100%; }
.chart svg { display: block; width: 100%; height: auto; }
.legend { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 10px; font-size: 12px; color: var(--muted); }
.legend i { display: inline-block; width: 10px; height: 10px; margin-right: 5px; vertical-align: middle; }

/* 代码块 */
pre.code {
    background: var(--chip); border: 1px solid var(--line); padding: 14px 16px;
    font-family: var(--mono); font-size: 12.5px; overflow-x: auto; white-space: pre; color: var(--fg);
}
.copy-hint { font-size: 12px; color: var(--muted); margin-top: 6px; }

/* 空状态 */
.empty { text-align: center; color: var(--muted); padding: 40px 0; }

/* 响应式 */
@media (max-width: 1100px) { .kpis { grid-template-columns: repeat(3, 1fr); } }
@media (max-width: 860px) {
    .app { grid-template-columns: 1fr; }
    .sidebar { position: static; height: auto; border-right: none; border-bottom: 1px solid var(--line); }
    .nav { flex-direction: row; flex-wrap: wrap; }
    .cards-2, .cards-3 { grid-template-columns: 1fr; }
}
@media (max-width: 560px) { .kpis { grid-template-columns: repeat(2, 1fr); } }

/* 主题切换按钮 */
.theme-toggle { background: transparent; border: 1px solid var(--line-strong); color: var(--fg); padding: 6px 10px; cursor: pointer; border-radius: 0; font-size: 13px; }
.theme-toggle:hover { border-color: var(--acc); color: var(--acc); }

/* 横向条形榜 */
.hbar-row { display: flex; align-items: center; gap: 10px; padding: 7px 0; border-bottom: 1px solid var(--line); }
.hbar-row:last-child { border-bottom: none; }
.hbar-name { flex: 0 0 190px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; font-size: 13px; }
.hbar-bar { flex: 1; height: 9px; background: var(--line); position: relative; }
.hbar-bar > span { position: absolute; left: 0; top: 0; bottom: 0; }
.hbar-val { flex: 0 0 72px; text-align: right; font-size: 13px; }

/* 工具条 */
.toolbar { display: flex; align-items: center; gap: 8px; margin-bottom: 16px; flex-wrap: wrap; }
.toolbar .spacer { flex: 1; }
.seg { display: inline-flex; border: 1px solid var(--line-strong); }
.seg button { background: transparent; border: none; color: var(--fg); padding: 7px 13px; cursor: pointer; font-size: 13px; border-right: 1px solid var(--line-strong); font-family: var(--sans); }
.seg button:last-child { border-right: none; }
.seg button.active { background: var(--acc); color: #fff; }