:root {
  --bg: #0f1420;
  --panel: #171e2e;
  --panel-2: #1e263a;
  --border: #2a3348;
  --text: #e8ecf5;
  --text-dim: #93a0b8;
  --accent: #3d8bfd;
  --accent-2: #22c55e;
  --danger: #ef4444;
  --warn: #f59e0b;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
}
#layout { display: flex; min-height: 100vh; }
#sidebar {
  width: 240px;
  background: var(--panel);
  border-right: 1px solid var(--border);
  flex-shrink: 0;
  padding: 16px 0;
}
.brand {
  font-size: 20px;
  font-weight: 700;
  padding: 0 20px 20px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 16px;
}
.brand span { color: var(--accent); }
.nav-group { margin-bottom: 18px; }
.nav-group-label {
  text-transform: uppercase;
  font-size: 11px;
  letter-spacing: 0.05em;
  color: var(--text-dim);
  padding: 0 20px;
  margin-bottom: 6px;
}
.nav-link {
  display: block;
  padding: 8px 20px;
  color: var(--text-dim);
  text-decoration: none;
  font-size: 14px;
  border-left: 3px solid transparent;
}
.nav-link:hover { background: var(--panel-2); color: var(--text); }
.nav-link.active {
  background: var(--panel-2);
  color: var(--text);
  border-left-color: var(--accent);
}
#main { flex: 1; display: flex; flex-direction: column; min-width: 0; }
#topbar {
  height: 60px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 24px;
}
.topbar-title { font-size: 18px; font-weight: 600; }
.topbar-user { display: flex; align-items: center; gap: 12px; font-size: 14px; color: var(--text-dim); }
.role-badge {
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 2px 8px;
  font-size: 11px;
  text-transform: uppercase;
}
#content { padding: 24px; flex: 1; overflow-y: auto; }

.card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 20px;
  margin-bottom: 20px;
}
.card h2, .card h3 { margin-top: 0; }

.kpi-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 16px; margin-bottom: 20px; }
.kpi-card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 16px 20px;
}
.kpi-label { font-size: 12px; color: var(--text-dim); text-transform: uppercase; letter-spacing: 0.03em; }
.kpi-value { font-size: 28px; font-weight: 700; margin-top: 6px; }

table { width: 100%; border-collapse: collapse; }
th, td { text-align: left; padding: 10px 12px; border-bottom: 1px solid var(--border); font-size: 14px; }
th { color: var(--text-dim); font-weight: 600; font-size: 12px; text-transform: uppercase; }
tr:hover td { background: var(--panel-2); }

.badge { display: inline-block; padding: 2px 8px; border-radius: 4px; font-size: 12px; }
.badge-online { background: rgba(34,197,94,0.15); color: var(--accent-2); }
.badge-offline { background: rgba(148,163,184,0.15); color: var(--text-dim); }
.badge-busy { background: rgba(245,158,11,0.15); color: var(--warn); }

.btn {
  display: inline-block;
  background: var(--accent);
  color: #fff;
  border: none;
  padding: 8px 16px;
  border-radius: 6px;
  font-size: 14px;
  cursor: pointer;
  text-decoration: none;
}
.btn-sm { padding: 4px 10px; font-size: 12px; }
.btn-primary { width: 100%; margin-top: 8px; }

.alert { padding: 10px 14px; border-radius: 6px; margin-bottom: 16px; font-size: 14px; }
.alert-error { background: rgba(239,68,68,0.15); color: #fca5a5; border: 1px solid rgba(239,68,68,0.3); }

.login-body {
  display: flex; align-items: center; justify-content: center; min-height: 100vh;
}
.login-card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 40px;
  width: 360px;
}
.login-card h1 { font-size: 22px; margin-bottom: 4px; }
.subtitle { color: var(--text-dim); font-size: 13px; margin-bottom: 24px; }
.login-card label { display: block; font-size: 13px; color: var(--text-dim); margin: 12px 0 4px; }
.login-card input {
  width: 100%;
  padding: 10px 12px;
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text);
  font-size: 14px;
}
.fineprint { margin-top: 20px; font-size: 11px; color: var(--text-dim); text-align: center; }

.empty-state { color: var(--text-dim); text-align: center; padding: 40px 0; }
.stub-note {
  background: rgba(61,139,253,0.1);
  border: 1px dashed var(--accent);
  border-radius: 6px;
  padding: 12px 16px;
  font-size: 13px;
  color: var(--text-dim);
  margin-bottom: 16px;
}

.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  align-items: flex-end;
  margin-bottom: 20px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--border);
}
.filter-field { display: flex; flex-direction: column; gap: 4px; }
.filter-field label { font-size: 11px; color: var(--text-dim); text-transform: uppercase; letter-spacing: 0.03em; }
.filter-field input, .filter-field select {
  padding: 8px 10px;
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text);
  font-size: 14px;
}
.filter-actions { flex-direction: row; gap: 8px; }
.btn-ghost {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text-dim);
}

.pagination {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 16px;
  padding-top: 16px;
  border-top: 1px solid var(--border);
}
.pagination-info { font-size: 13px; color: var(--text-dim); }
.pagination-controls { display: flex; gap: 8px; }

.thread-scroll {
  max-height: 420px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 8px 4px;
  margin-bottom: 16px;
}
.msg-bubble {
  max-width: 60%;
  padding: 10px 14px;
  border-radius: 10px;
  font-size: 14px;
}
.msg-in { align-self: flex-start; background: var(--panel-2); border: 1px solid var(--border); }
.msg-out { align-self: flex-end; background: rgba(61,139,253,0.2); border: 1px solid rgba(61,139,253,0.4); }
.msg-text { white-space: pre-wrap; }
.msg-meta { font-size: 11px; color: var(--text-dim); margin-top: 4px; }

.compose-form {
  display: flex;
  gap: 10px;
  align-items: flex-end;
  border-top: 1px solid var(--border);
  padding-top: 16px;
}
.compose-form textarea {
  flex: 1;
  min-height: 60px;
  padding: 10px 12px;
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text);
  font-size: 14px;
  resize: vertical;
}