:root {
  --bg: #0b0d10;
  --bg-panel: #12151a;
  --bg-panel-hover: #171b22;
  --border: #23272f;
  --text: #e8e6df;
  --text-dim: #9aa0a8;
  --gold: #c9a24b;
  --gold-dim: #8a723a;
  --positive: #6fae7c;
  --negative: #c9736a;
  --radius: 10px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, "Segoe UI", system-ui, sans-serif;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--gold); }

.app-shell {
  display: grid;
  grid-template-columns: 220px 1fr;
  grid-template-areas: "nav main";
  min-height: 100vh;
}

nav.dashboard-nav {
  grid-area: nav;
  background: var(--bg-panel);
  border-right: 1px solid var(--border);
  padding: 24px 12px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

nav.dashboard-nav .brand {
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--gold);
  padding: 0 12px 20px;
}

nav.dashboard-nav button {
  all: unset;
  cursor: pointer;
  padding: 10px 12px;
  border-radius: var(--radius);
  color: var(--text-dim);
  font-size: 14px;
}

nav.dashboard-nav button:hover { background: var(--bg-panel-hover); color: var(--text); }
nav.dashboard-nav button.active { background: var(--bg-panel-hover); color: var(--gold); }

main.dashboard-main {
  grid-area: main;
  padding: 28px 32px 60px;
  max-width: 1200px;
}

.toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
  flex-wrap: wrap;
  gap: 12px;
}

.toolbar h1 { font-size: 20px; font-weight: 600; margin: 0; }

.date-filter select, .date-filter input[type="date"] {
  background: var(--bg-panel);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 8px;
  padding: 8px 10px;
  font-size: 13px;
}

.kpi-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 14px;
  margin-bottom: 24px;
}

.kpi-card {
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px 18px;
}

.kpi-card .label {
  font-size: 12px;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: 8px;
}

.kpi-card .value {
  font-size: 26px;
  font-weight: 600;
  color: var(--gold);
  line-height: 1.1;
}

.kpi-card .change {
  font-size: 12px;
  margin-top: 6px;
  color: var(--text-dim);
}

.kpi-card .change.positive { color: var(--positive); }
.kpi-card .change.negative { color: var(--negative); }

.panel {
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px 22px;
  margin-bottom: 24px;
}

.panel h2 {
  font-size: 14px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-dim);
  margin: 0 0 16px;
}

.mini-metrics {
  display: flex;
  gap: 32px;
  margin-top: 16px;
  flex-wrap: wrap;
}

.mini-metrics .metric .label { font-size: 12px; color: var(--text-dim); }
.mini-metrics .metric .value { font-size: 18px; color: var(--text); font-weight: 600; }

.section { display: none; }
.section.active { display: block; }

table.data-table { width: 100%; border-collapse: collapse; font-size: 13px; }
table.data-table th, table.data-table td {
  text-align: left;
  padding: 8px 10px;
  border-bottom: 1px solid var(--border);
}
table.data-table th { color: var(--text-dim); font-weight: 500; }
table.data-table td.num, table.data-table th.num { text-align: right; }

.section-loading, .section-error, .section-empty {
  color: var(--text-dim);
  font-size: 13px;
  padding: 8px 0;
}
.section-error { color: var(--negative); }

.funnel {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.funnel-stage {
  display: grid;
  grid-template-columns: 200px 1fr 96px 200px;
  align-items: center;
  gap: 16px;
  padding: 10px 0;
  border-bottom: 1px solid var(--border);
}
.funnel-stage:last-child { border-bottom: none; }

.funnel-stage .stage-name { font-size: 13px; color: var(--text); }

.funnel-stage .stage-bar-track {
  background: var(--bg);
  border-radius: 6px;
  height: 22px;
  overflow: hidden;
  border: 1px solid var(--border);
}
.funnel-stage .stage-bar-fill {
  background: linear-gradient(90deg, var(--gold-dim), var(--gold));
  height: 100%;
  border-radius: 6px 0 0 6px;
  min-width: 2px;
  transition: width 0.3s ease;
}
.funnel-stage.not-instrumented .stage-bar-track { opacity: 0.35; }

.funnel-stage .stage-count { font-size: 15px; font-weight: 600; color: var(--text); text-align: right; }
.funnel-stage .stage-conversions { font-size: 11px; color: var(--text-dim); text-align: right; line-height: 1.5; }
.funnel-stage .stage-not-instrumented { font-size: 12px; color: var(--text-dim); font-style: italic; }

.health-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 14px;
}

.health-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 0;
  border-bottom: 1px solid var(--border);
  font-size: 13px;
}
.health-row:last-child { border-bottom: none; }
.health-row .health-label { color: var(--text-dim); }
.health-row .health-value { font-weight: 600; }

.status-dot { display: inline-block; width: 8px; height: 8px; border-radius: 50%; margin-right: 8px; }
.status-dot.ok { background: var(--positive); }
.status-dot.warn { background: var(--gold); }
.status-dot.bad { background: var(--negative); }
.status-dot.unknown { background: var(--text-dim); }

.dist-list { display: flex; flex-direction: column; gap: 8px; }
.dist-row { display: grid; grid-template-columns: 140px 1fr 60px; align-items: center; gap: 10px; font-size: 13px; }
.dist-row .dist-track { background: var(--bg); border-radius: 6px; height: 14px; overflow: hidden; border: 1px solid var(--border); }
.dist-row .dist-fill { background: var(--gold); height: 100%; }
.dist-row .dist-count { text-align: right; color: var(--text-dim); }

@media (max-width: 640px) {
  .funnel-stage { grid-template-columns: 1fr; gap: 4px; text-align: left; }
  .funnel-stage .stage-count, .funnel-stage .stage-conversions { text-align: left; }
}

.login-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
}

.login-card {
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 40px 36px;
  width: 320px;
  text-align: center;
}

.login-card h1 { color: var(--gold); font-size: 18px; margin: 0 0 24px; }
.login-card input[type="email"] {
  width: 100%;
  padding: 10px 12px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--bg);
  color: var(--text);
  margin-bottom: 12px;
}
.login-card button {
  width: 100%;
  padding: 10px 12px;
  border-radius: 8px;
  border: none;
  background: var(--gold);
  color: var(--bg);
  font-weight: 600;
  cursor: pointer;
}
.login-card .status { margin-top: 14px; font-size: 13px; color: var(--text-dim); }

@media (max-width: 768px) {
  .app-shell { grid-template-columns: 1fr; grid-template-areas: "main"; }
  nav.dashboard-nav {
    position: sticky;
    top: 0;
    z-index: 10;
    flex-direction: row;
    overflow-x: auto;
    padding: 10px;
    border-right: none;
    border-bottom: 1px solid var(--border);
  }
  nav.dashboard-nav .brand { display: none; }
  main.dashboard-main { padding: 20px 16px 40px; }
}