:root {
  --bg: oklch(97.5% 0.006 85);
  --surface: oklch(99.5% 0.003 85);
  --border: oklch(89% 0.008 80);
  --border-strong: oklch(82% 0.01 80);
  --ink-900: oklch(24% 0.015 55);
  --ink-700: oklch(38% 0.014 55);
  --ink-500: oklch(52% 0.013 58);
  --ink-400: oklch(68% 0.012 60);
  --gold-500: oklch(72% 0.13 85);
  --gold-600: oklch(62% 0.14 82);
  --gold-700: oklch(46% 0.11 75);
  --gold-tint: oklch(95% 0.035 90);
  --green-600: oklch(56% 0.13 150);
  --green-tint: oklch(94% 0.04 150);
  --navy-600: oklch(42% 0.07 255);
  --navy-tint: oklch(93% 0.02 255);
  --red-600: oklch(55% 0.17 25);
  --red-tint: oklch(94% 0.045 25);
  --terracotta-600: oklch(60% 0.14 45);
  --terracotta-tint: oklch(94% 0.045 50);
  --amber-700: oklch(48% 0.1 70);
  --amber-tint: oklch(94% 0.045 80);
  --font-ui: 'Work Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono: 'IBM Plex Mono', ui-monospace, SFMono-Regular, monospace;
  --radius-card: 10px;
  --radius-control: 8px;
}

.dashboard-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  font-family: var(--font-ui);
}
.dashboard-header .header-top {
  padding: 13px 28px 11px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
}
.dashboard-header .header-left,
.dashboard-header .header-right,
.dashboard-header .user-info {
  display: flex;
  align-items: center;
}
.dashboard-header .header-left { gap: 14px; }
.dashboard-header .header-right { gap: 14px; }
.dashboard-header .brand-divider { width: 1px; height: 26px; background: var(--border); flex-shrink: 0; }
.dashboard-header h1 { margin: 0; font-size: 15px; font-weight: 600; color: var(--ink-900); line-height: 1.2; white-space: nowrap; }
.dashboard-header .subtitle { font-size: 11.5px; color: var(--ink-500); line-height: 1.2; white-space: nowrap; }

.dashboard-header .nav-tabs {
  display: flex;
  gap: 24px;
  padding: 0 28px;
}
.dashboard-header .nav-tab {
  padding: 10px 2px;
  color: var(--ink-500);
  font-size: 13px;
  font-weight: 500;
  text-decoration: none;
  border-bottom: 2px solid transparent;
}
.dashboard-header .nav-tab:hover { color: var(--ink-700); }
.dashboard-header .nav-tab.active {
  color: var(--ink-900);
  font-weight: 600;
  border-bottom-color: var(--gold-500);
}

.dashboard-header .live-badge {
  display: flex;
  align-items: center;
  gap: 6px;
  color: var(--green-600);
  font-size: 12px;
  font-weight: 500;
  white-space: nowrap;
}
.dashboard-header .live-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--green-600);
  animation: dashboard-pulse 2s infinite;
}
@keyframes dashboard-pulse { 0%,100% { opacity: 1; } 50% { opacity: .4; } }
.dashboard-header .last-sync { color: var(--ink-400); font-size: 11.5px; white-space: nowrap; }
.dashboard-header .closing-badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 4px 10px;
  border-radius: 999px;
  background: var(--navy-tint);
  color: var(--navy-600);
  font-size: 11.5px;
  font-weight: 600;
  white-space: nowrap;
}
.dashboard-header .sync-group {
  display: flex;
  align-items: center;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-control);
  overflow: hidden;
}
.dashboard-header .sync-group:empty { display: none; border: none; }
.dashboard-header .btn-sync {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 7px 12px;
  border: none;
  border-right: 1px solid var(--border-strong);
  background: var(--surface);
  color: var(--ink-700);
  font: inherit;
  font-size: 12.5px;
  font-weight: 500;
  white-space: nowrap;
  cursor: pointer;
}
.dashboard-header .btn-sync:last-child { border-right: none; }
.dashboard-header .btn-sync:hover { background: var(--bg); }
.dashboard-header .btn-sync:disabled { opacity: .6; cursor: default; }

.dashboard-header .btn-login {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 7px 14px;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-control);
  background: var(--surface);
  color: var(--ink-700);
  font: inherit;
  font-size: 13px;
  font-weight: 500;
  text-decoration: none;
  cursor: pointer;
}
.dashboard-header .btn-login:hover { background: var(--bg); }

.dashboard-header .user-info { gap: 9px; }
.dashboard-header .user-avatar {
  width: 30px;
  height: 30px;
  border: 2px solid var(--border);
  border-radius: 50%;
  object-fit: cover;
}
.dashboard-header .user-name { color: var(--ink-900); font-size: 12.5px; font-weight: 500; white-space: nowrap; }
.dashboard-header .admin-badge,
.dashboard-header .super-admin-badge,
.dashboard-header .team-badge {
  display: inline-block;
  padding: 1px 7px;
  border-radius: 20px;
  font-size: 10px;
  font-weight: 600;
  letter-spacing: .01em;
}
.dashboard-header .admin-badge { background: var(--navy-tint); color: var(--navy-600); }
.dashboard-header .super-admin-badge { background: var(--gold-tint); color: var(--gold-700); }
.dashboard-header .team-badge { background: var(--green-tint); color: var(--green-600); }
.dashboard-header .btn-logout {
  padding: 4px 6px;
  border-radius: 6px;
  color: var(--ink-400);
  font-size: 11.5px;
  text-decoration: none;
  white-space: nowrap;
}
.dashboard-header .btn-logout:hover { background: var(--bg); color: var(--ink-700); }

@media (max-width: 900px) {
  .dashboard-header .header-top { padding: 12px 16px; }
  .dashboard-header .nav-tabs { padding: 0 16px; gap: 16px; }
  .dashboard-header .subtitle,
  .dashboard-header .last-sync,
  .dashboard-header .live-badge { display: none; }
}