:root {
  --c-bg:        #0f1117;
  --c-surface:   #1a1d27;
  --c-border:    #2a2d3a;
  --c-text:      #e2e4ed;
  --c-muted:     #7a7f96;
  --c-accent:    #6366f1;
  --c-accent-h:  #818cf8;
  --c-success:   #22c55e;
  --c-warn:      #f59e0b;
  --c-danger:    #ef4444;

  --radius:      6px;
  --radius-lg:   10px;
  --font:        system-ui, -apple-system, sans-serif;
  --transition:  150ms ease;
}

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

html, body {
  height: 100%;
  background: var(--c-bg);
  color: var(--c-text);
  font-family: var(--font);
  font-size: 15px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--c-accent); text-decoration: none; }
a:hover { color: var(--c-accent-h); }

/* Layout */
.layout { display: flex; height: 100vh; overflow: hidden; }
.sidebar {
  width: 220px; flex-shrink: 0;
  background: var(--c-surface);
  border-right: 1px solid var(--c-border);
  display: flex; flex-direction: column;
  padding: 1.5rem 0;
}
.sidebar-brand {
  font-size: 1.1rem; font-weight: 700; letter-spacing: -0.02em;
  padding: 0 1.25rem 1.25rem;
  border-bottom: 1px solid var(--c-border);
  margin-bottom: 0.5rem;
  color: var(--c-text);
}
.sidebar-brand span { color: var(--c-accent); }
.nav-link {
  display: flex; align-items: center; gap: 0.6rem;
  padding: 0.5rem 1.25rem;
  color: var(--c-muted); font-size: 0.9rem;
  transition: color var(--transition), background var(--transition);
}
.nav-link:hover { color: var(--c-text); background: rgba(255,255,255,0.04); }
.nav-link.active { color: var(--c-text); background: rgba(99,102,241,0.12); }
.main { flex: 1; overflow-y: auto; display: flex; flex-direction: column; }
.page { padding: 2rem; flex: 1; }
.page-header {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 1.5rem;
}
.page-title { font-size: 1.4rem; font-weight: 700; letter-spacing: -0.02em; }

/* Cards */
.card { background: var(--c-surface); border: 1px solid var(--c-border); border-radius: var(--radius-lg); padding: 1.25rem; }

/* Stats */
.stats { display: grid; grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); gap: 1rem; margin-bottom: 1.5rem; }
.stat { background: var(--c-surface); border: 1px solid var(--c-border); border-radius: var(--radius-lg); padding: 1.1rem 1.25rem; }
.stat-label { font-size: 0.78rem; color: var(--c-muted); text-transform: uppercase; letter-spacing: 0.06em; }
.stat-value { font-size: 2rem; font-weight: 700; margin-top: 0.2rem; letter-spacing: -0.03em; }

/* Buttons */
.btn {
  display: inline-flex; align-items: center; gap: 0.4rem;
  padding: 0.45rem 1rem; border-radius: var(--radius);
  border: 1px solid transparent;
  font-size: 0.875rem; font-weight: 500; font-family: var(--font);
  cursor: pointer; white-space: nowrap;
  transition: background var(--transition), border-color var(--transition), opacity var(--transition);
}
.btn:disabled { opacity: 0.5; cursor: not-allowed; }
.btn-primary { background: var(--c-accent); color: #fff; }
.btn-primary:hover:not(:disabled) { background: var(--c-accent-h); }
.btn-ghost { background: transparent; color: var(--c-muted); border-color: var(--c-border); }
.btn-ghost:hover:not(:disabled) { color: var(--c-text); border-color: var(--c-text); }
.btn-danger { background: transparent; color: var(--c-danger); border-color: var(--c-danger); }
.btn-danger:hover:not(:disabled) { background: var(--c-danger); color: #fff; }
.btn-success { background: var(--c-success); color: #000; font-weight: 600; }
.btn-success:hover:not(:disabled) { filter: brightness(1.1); }
.btn-sm { padding: 0.3rem 0.65rem; font-size: 0.8rem; }

/* Forms */
.form-group { display: flex; flex-direction: column; gap: 0.35rem; margin-bottom: 1rem; }
label { font-size: 0.82rem; color: var(--c-muted); font-weight: 500; }
input, select, textarea {
  background: var(--c-bg); border: 1px solid var(--c-border);
  border-radius: var(--radius); color: var(--c-text);
  font-size: 0.9rem; padding: 0.5rem 0.75rem;
  width: 100%; font-family: var(--font);
  transition: border-color var(--transition);
}
input:focus, select:focus, textarea:focus { outline: none; border-color: var(--c-accent); }
input::placeholder { color: var(--c-muted); }

/* Search */
.search-bar { display: flex; gap: 0.5rem; align-items: center; margin-bottom: 1rem; }
.search-bar input { max-width: 320px; }

/* Table */
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: 0.875rem; }
th {
  text-align: left; font-size: 0.75rem; font-weight: 600;
  color: var(--c-muted); text-transform: uppercase; letter-spacing: 0.06em;
  padding: 0.6rem 1rem; border-bottom: 1px solid var(--c-border);
}
td { padding: 0.75rem 1rem; border-bottom: 1px solid var(--c-border); vertical-align: middle; }
tr:last-child td { border-bottom: none; }
tr:hover td { background: rgba(255,255,255,0.02); }

/* Badges */
.badge {
  display: inline-flex; align-items: center;
  padding: 0.18rem 0.55rem; border-radius: 99px;
  font-size: 0.72rem; font-weight: 600;
  text-transform: uppercase; letter-spacing: 0.04em;
}
.badge-checked   { background: rgba(34,197,94,0.15); color: var(--c-success); }
.badge-unchecked { background: rgba(122,127,150,0.15); color: var(--c-muted); }
.badge-role      { background: rgba(99,102,241,0.15); color: var(--c-accent-h); }
.badge-lead      { background: rgba(245,158,11,0.15); color: var(--c-warn); }

/* Alerts */
.alert { padding: 0.75rem 1rem; border-radius: var(--radius); font-size: 0.875rem; margin-bottom: 1rem; }
.alert-error   { background: rgba(239,68,68,0.12); border: 1px solid rgba(239,68,68,0.3); color: #fca5a5; }
.alert-success { background: rgba(34,197,94,0.12); border: 1px solid rgba(34,197,94,0.3); color: #86efac; }

/* Sync indicator */
.sync-bar {
  display: flex; align-items: center; gap: 0.5rem;
  padding: 0.5rem 1.25rem; margin-top: auto;
  font-size: 0.78rem; color: var(--c-muted);
  border-top: 1px solid var(--c-border);
}
.sync-dot { width: 7px; height: 7px; border-radius: 50%; flex-shrink: 0; background: var(--c-muted); }
.sync-dot.online  { background: var(--c-success); }
.sync-dot.syncing { background: var(--c-warn); animation: pulse 1s infinite; }
.sync-dot.offline { background: var(--c-danger); }

/* Login */
.login-wrap { min-height: 100vh; display: flex; align-items: center; justify-content: center; }
.login-box { width: 100%; max-width: 380px; }
.login-title { font-size: 1.5rem; font-weight: 700; margin-bottom: 0.25rem; }
.login-sub { color: var(--c-muted); font-size: 0.875rem; margin-bottom: 2rem; }

/* Misc */
.dept-dot { display: inline-block; width: 10px; height: 10px; border-radius: 50%; flex-shrink: 0; }
.empty { text-align: center; padding: 3rem 1rem; color: var(--c-muted); }
.empty p { margin-top: 0.5rem; font-size: 0.875rem; }
.text-muted { color: var(--c-muted); }
.text-success { color: var(--c-success); }
.text-danger { color: var(--c-danger); }
.flex { display: flex; align-items: center; }
.spacer { flex: 1; }
.actions { display: flex; gap: 0.4rem; align-items: center; }

@keyframes pulse { 0%, 100% { opacity: 1; } 50% { opacity: 0.4; } }

@media (max-width: 640px) {
  .sidebar { display: none; }
  .page { padding: 1rem; }
  .stats { grid-template-columns: repeat(2, 1fr); }
}