/* ───────────────────────────────────────────────────────────────
   Unified app header — shared across all Haulage Training pages.
   Uses var() with fallbacks so it works regardless of each page's theme.
   ─────────────────────────────────────────────────────────────── */
.app-header {
  background: var(--surface, #181c27);
  border-bottom: 3px solid var(--accent, #f5a623);
  padding: 11px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  flex-wrap: wrap;
}
.app-header .brand { min-width: 0; display: flex; flex-direction: column; }
.app-header .brand .badge {
  font-family: 'Barlow Condensed', sans-serif;
  font-size: 11px; font-weight: 700; letter-spacing: 2.5px;
  color: var(--accent, #f5a623); text-transform: uppercase;
  text-decoration: none; margin-bottom: 2px; white-space: nowrap;
}
.app-header .brand .badge:hover { opacity: .85; }
.app-header .brand h1,
.app-header .brand .app-title {
  font-family: 'Barlow Condensed', sans-serif;
  font-size: 23px; font-weight: 800; letter-spacing: 1px;
  text-transform: uppercase; line-height: 1;
  color: var(--text, #e8ecf4); margin: 0;
}
.app-header .brand .app-title .accent,
.app-header .brand h1 .accent { color: var(--accent, #f5a623); }

.app-header .hdr-actions {
  display: flex; align-items: center; gap: 8px;
  flex-shrink: 0; flex-wrap: wrap; justify-content: flex-end;
}

/* One button style for every header action (Home, Back, Print, Log Out, …) */
.hdr-btn {
  font-family: 'Barlow Condensed', sans-serif;
  font-size: 13px; font-weight: 700; letter-spacing: 1px; text-transform: uppercase;
  color: var(--muted, #6b7599); background: transparent;
  border: 1.5px solid var(--border, #2a3050); border-radius: 6px;
  padding: 7px 13px; cursor: pointer; text-decoration: none;
  display: inline-flex; align-items: center; gap: 6px; line-height: 1;
  white-space: nowrap; transition: color .15s, border-color .15s, background .15s, opacity .15s;
}
.hdr-btn:hover { color: var(--text, #e8ecf4); border-color: var(--muted, #6b7599); }
.hdr-btn.primary { background: var(--accent, #f5a623); border-color: var(--accent, #f5a623); color: #000; }
.hdr-btn.primary:hover { opacity: .9; color: #000; }
.hdr-btn.danger:hover { color: var(--error, #ef4444); border-color: var(--error, #ef4444); }

/* Small grouped controls (e.g. the A/A/A font-size toggle) */
.hdr-group { display: inline-flex; gap: 4px; align-items: center; }
.hdr-group .hdr-btn { padding: 6px 9px; }

@media (max-width: 520px) {
  .app-header { padding: 10px 13px; }
  .app-header .brand h1, .app-header .brand .app-title { font-size: 18px; }
  .app-header .brand .badge { font-size: 10px; letter-spacing: 2px; }
  .hdr-btn { padding: 6px 10px; font-size: 12px; }
}