:root {
  --bg: #0e1626;
  --panel: #16213a;
  --panel-2: #1d2b48;
  --line: #283a5e;
  --text: #e8eef9;
  --muted: #8aa0c4;
  --accent: #2f6df6;
  --good: #1faa6b;
  --warn: #e0a020;
  --bad: #e0524d;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  background: var(--bg);
  color: var(--text);
  font: 14px/1.45 "Segoe UI", system-ui, -apple-system, sans-serif;
}
.muted { color: var(--muted); }
.small { font-size: 12px; }
.center { text-align: center; }
.bad { color: var(--bad); }

/* ---- Login ---- */
.login-body { display: flex; align-items: center; justify-content: center; min-height: 100vh; }
.login-card {
  background: var(--panel); border: 1px solid var(--line); border-radius: 14px;
  padding: 32px; width: 340px; box-shadow: 0 20px 60px rgba(0,0,0,.4);
}
.login-card form { display: flex; flex-direction: column; gap: 14px; margin-top: 18px; }
.login-card label { display: flex; flex-direction: column; gap: 6px; font-size: 13px; color: var(--muted); }
.login-card input {
  background: var(--bg); border: 1px solid var(--line); color: var(--text);
  padding: 10px 12px; border-radius: 8px; font-size: 14px;
}
.login-card button { margin-top: 6px; }
.error { color: var(--bad); min-height: 18px; font-size: 13px; margin: 0; }

.brand { font-weight: 700; font-size: 18px; display: flex; align-items: center; gap: 10px; }
.logo {
  display: inline-grid; place-items: center; width: 30px; height: 30px; border-radius: 8px;
  background: linear-gradient(135deg, var(--accent), #6ea0ff); color: #fff; font-weight: 800;
}

button {
  background: var(--accent); color: #fff; border: 0; padding: 10px 16px;
  border-radius: 8px; cursor: pointer; font-weight: 600; font-size: 13px;
}
button:hover { filter: brightness(1.08); }
button:disabled { opacity: .5; cursor: default; }
button.ghost { background: transparent; border: 1px solid var(--line); color: var(--text); }

/* ---- App ---- */
.topbar {
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 22px; border-bottom: 1px solid var(--line); background: var(--panel);
  position: sticky; top: 0; z-index: 10;
}
.topbar-right { display: flex; align-items: center; gap: 14px; }
.pill { background: var(--panel-2); border: 1px solid var(--line); padding: 4px 10px; border-radius: 20px; font-size: 12px; }

.cards { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; padding: 18px 22px; }
.card { background: var(--panel); border: 1px solid var(--line); border-radius: 12px; padding: 16px; }
.card.hi { border-color: #2f6df6; }
.card.warn { border-color: #6b4f12; }
.card.mute { opacity: .9; }
.card-k { color: var(--muted); font-size: 12px; text-transform: uppercase; letter-spacing: .04em; }
.card-v { font-size: 30px; font-weight: 800; margin: 6px 0 2px; }
.card-d { color: var(--muted); font-size: 12px; }
.grade-bar { display: flex; flex-wrap: wrap; gap: 6px; margin: 8px 0; }
.grade-chip { font-size: 12px; padding: 3px 8px; border-radius: 6px; background: var(--panel-2); border: 1px solid var(--line); }

.tabs { display: flex; gap: 8px; padding: 0 22px; border-bottom: 1px solid var(--line); }
.tab {
  background: transparent; color: var(--muted); border: 0; border-bottom: 2px solid transparent;
  padding: 12px 14px; border-radius: 0; font-weight: 600;
}
.tab.active { color: var(--text); border-bottom-color: var(--accent); }
.tab .count { background: var(--panel-2); border-radius: 12px; padding: 1px 8px; margin-left: 6px; font-size: 12px; }

.toolbar { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 16px 22px 8px; }
#search {
  flex: 1; max-width: 480px; background: var(--panel); border: 1px solid var(--line);
  color: var(--text); padding: 10px 12px; border-radius: 8px;
}
#pageSize { background: var(--panel); border: 1px solid var(--line); color: var(--text); border-radius: 6px; padding: 6px; }

.table-wrap {
  margin: 0 22px; border: 1px solid var(--line); border-radius: 12px; overflow: auto;
  /* DOM hardening: discourage casual selection/scraping of the data table */
  -webkit-user-select: none; -moz-user-select: none; -ms-user-select: none; user-select: none;
}
table.leads { width: 100%; border-collapse: collapse; font-size: 13px; }
.leads thead th {
  text-align: left; padding: 11px 12px; color: var(--muted); font-weight: 600;
  border-bottom: 1px solid var(--line); position: sticky; top: 0; background: var(--panel);
  white-space: nowrap;
}
.leads th.sortable { cursor: pointer; }
.leads th.sortable:hover { color: var(--text); }
.leads th.sorted::after { content: ' ▾'; color: var(--accent); }
.leads th.sorted[data-dir="asc"]::after { content: ' ▴'; }
.leads tbody td { padding: 10px 12px; border-bottom: 1px solid rgba(40,58,94,.5); vertical-align: top; }
.leads tbody tr { cursor: pointer; }
.leads tbody tr:hover { background: rgba(47,109,246,.08); }
.lead-name { font-weight: 600; }
.sub { font-size: 11px; color: var(--muted); margin-top: 2px; }
.sub.bad { color: var(--bad); }

.grade { display: inline-grid; place-items: center; width: 24px; height: 24px; border-radius: 6px; font-weight: 800; margin-right: 8px; color: #08111f; }
.grade-A { background: #46e0a0; } .grade-B { background: #8fd66a; } .grade-C { background: #e0c14a; }
.grade-D { background: #e0924a; } .grade-E { background: #e0635c; color: #fff; }
.score { color: var(--muted); }

.sig { display: inline-block; font-size: 11px; padding: 2px 7px; border-radius: 10px; margin: 1px 0; background: var(--panel-2); border: 1px solid var(--line); }
.sig.sig-good { color: #7ef0bd; border-color: #1faa6b55; }
.sig.sig-warn { color: #ffce73; border-color: #e0a02055; }
.sig.sig-bad { color: #ff9c97; border-color: #e0524d55; }
.sig.sig-mute { color: var(--muted); }

.why ul { margin: 0; padding-left: 16px; color: var(--muted); }
.why li { margin: 1px 0; }
.open { background: var(--panel-2); border: 1px solid var(--line); color: var(--text); padding: 6px 10px; font-size: 12px; white-space: nowrap; }
.open:hover { border-color: var(--accent); }

.pager { display: flex; align-items: center; justify-content: center; gap: 16px; padding: 18px; }

@media (max-width: 1100px) {
  .cards { grid-template-columns: repeat(2, 1fr); }
  .why { display: none; }
}