/* NVE-Tracking – Mobile-first Styles */
:root {
  --bg: #0f1218;
  --bg-card: #1a1f2b;
  --bg-card-hover: #232938;
  --fg: #e8eaee;
  --fg-muted: #9aa0ac;
  --accent: #3b82f6;
  --accent-hover: #2563eb;
  --success: #16a34a;
  --warning: #f59e0b;
  --error: #ef4444;
  --border: #2a3142;
  --radius: 12px;
  --shadow: 0 4px 12px rgba(0,0,0,0.3);
}

* { box-sizing: border-box; -webkit-tap-highlight-color: transparent; }

html, body {
  margin: 0; padding: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  font-size: 16px;
  line-height: 1.5;
  overscroll-behavior: none;
}

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

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  background: var(--bg-card);
  border-bottom: 1px solid var(--border);
  position: sticky; top: 0; z-index: 10;
}
.topbar .brand { font-weight: 700; font-size: 18px; }
.topbar .back { color: var(--fg); font-size: 24px; display: inline-block; padding: 4px 8px; margin-right: 4px; }
.status { font-size: 12px; color: var(--fg-muted); }
.status.online { color: var(--success); }
.status.offline { color: var(--error); }

.container {
  max-width: 720px;
  margin: 0 auto;
  padding: 20px 16px 80px;
}

h1 { font-size: 24px; margin: 0 0 20px; }
h2 { font-size: 18px; margin: 24px 0 12px; color: var(--fg); }

/* ===== Menü-Seite ===== */
.menu-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}
@media (max-width: 380px) { .menu-grid { grid-template-columns: 1fr; } }

.menu-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px 16px;
  text-align: center;
  color: var(--fg);
  display: flex; flex-direction: column; align-items: center; gap: 8px;
  transition: background 0.15s;
  min-height: 140px;
  justify-content: center;
}
.menu-card:hover { background: var(--bg-card-hover); color: var(--fg); }
.menu-card.primary { background: var(--accent); border-color: var(--accent); }
.menu-card.primary:hover { background: var(--accent-hover); }
.menu-icon { font-size: 36px; }
.menu-title { font-weight: 600; font-size: 16px; }
.menu-sub { font-size: 12px; color: var(--fg-muted); }
.menu-card.primary .menu-sub { color: rgba(255,255,255,0.8); }

/* ===== Formulare ===== */
.field { margin-bottom: 14px; }
label {
  display: block;
  font-size: 13px;
  color: var(--fg-muted);
  margin-bottom: 6px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}
input, select, textarea {
  width: 100%;
  background: var(--bg-card);
  color: var(--fg);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 12px 14px;
  font-size: 16px;
  font-family: inherit;
}
input:focus, select:focus, textarea:focus {
  outline: none; border-color: var(--accent);
}
.btn {
  display: inline-block;
  background: var(--accent);
  color: white;
  border: none;
  border-radius: 8px;
  padding: 14px 20px;
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  width: 100%;
  text-align: center;
  font-family: inherit;
}
.btn:hover { background: var(--accent-hover); }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }
.btn-secondary { background: var(--bg-card); color: var(--fg); border: 1px solid var(--border); }
.btn-secondary:hover { background: var(--bg-card-hover); }
.btn-danger { background: var(--error); }
.btn-group { display: flex; gap: 8px; }
.btn-group .btn { flex: 1; }

/* ===== Scanner ===== */
.scanner-frame {
  position: relative;
  background: #000;
  border-radius: var(--radius);
  overflow: hidden;
  aspect-ratio: 4/3;
  margin-bottom: 16px;
}
#qr-reader { width: 100%; }
#qr-reader video { width: 100% !important; height: 100% !important; object-fit: cover; }

.scan-result {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  margin-bottom: 16px;
  font-family: ui-monospace, 'SF Mono', Menlo, monospace;
  font-size: 14px;
  word-break: break-all;
  min-height: 48px;
}
.scan-result.empty { color: var(--fg-muted); font-style: italic; }
.scan-result.success { border-color: var(--success); }
.scan-result.error { border-color: var(--error); }

.toast-overlay {
  position: fixed;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  background: rgba(0,0,0,0.92);
  color: white;
  padding: 24px 32px;
  border-radius: var(--radius);
  font-size: 18px;
  font-weight: 600;
  z-index: 1000;
  text-align: center;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.2s;
  box-shadow: var(--shadow);
}
.toast-overlay.visible { opacity: 1; }
.toast-overlay.success { border-left: 4px solid var(--success); }
.toast-overlay.error { border-left: 4px solid var(--error); background: rgba(60,0,0,0.95); }

/* ===== Last-Scans Liste ===== */
.recent-scans {
  margin-top: 20px;
}
.scan-item {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 12px 14px;
  margin-bottom: 8px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 14px;
}
.scan-item .scan-nve { font-family: ui-monospace, Menlo, monospace; font-weight: 600; }
.scan-item .scan-meta { color: var(--fg-muted); font-size: 12px; }

/* ===== Tracking-Seite ===== */
.timeline { position: relative; padding-left: 24px; }
.timeline::before {
  content: ''; position: absolute; left: 8px; top: 8px; bottom: 8px;
  width: 2px; background: var(--border);
}
.timeline-item {
  position: relative;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px 16px;
  margin-bottom: 12px;
}
.timeline-item::before {
  content: '';
  position: absolute;
  left: -22px; top: 20px;
  width: 14px; height: 14px;
  background: var(--accent);
  border-radius: 50%;
  border: 3px solid var(--bg);
}
.timeline-item .ts { font-size: 12px; color: var(--fg-muted); margin-bottom: 4px; }
.timeline-item .standort { font-size: 18px; font-weight: 600; margin-bottom: 4px; }
.timeline-item .fahrer { font-size: 13px; color: var(--fg-muted); }

/* ===== Tabelle ===== */
.table-wrap { overflow-x: auto; -webkit-overflow-scrolling: touch; }
table { width: 100%; border-collapse: collapse; font-size: 14px; }
th, td { padding: 10px 12px; text-align: left; border-bottom: 1px solid var(--border); }
th { background: var(--bg-card); font-weight: 600; font-size: 12px; text-transform: uppercase; color: var(--fg-muted); }
tr:hover td { background: var(--bg-card); }
td.mono { font-family: ui-monospace, Menlo, monospace; }
td .row-actions { display: flex; gap: 6px; }
td .row-actions button {
  background: var(--bg-card-hover);
  color: var(--fg);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 6px 10px;
  font-size: 12px;
  cursor: pointer;
}
td .row-actions button.danger { background: var(--error); color: white; border-color: var(--error); }

/* ===== Cards ===== */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  margin-bottom: 12px;
}
.stat-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px;
  margin-bottom: 20px;
}
@media (min-width: 640px) { .stat-grid { grid-template-columns: repeat(4, 1fr); } }
.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px;
}
.stat-card .label { font-size: 11px; color: var(--fg-muted); text-transform: uppercase; letter-spacing: 0.5px; }
.stat-card .value { font-size: 28px; font-weight: 700; margin-top: 4px; }
.stat-card .sub { font-size: 12px; color: var(--fg-muted); margin-top: 2px; }

/* ===== Misc ===== */
.empty-state {
  text-align: center;
  padding: 40px 20px;
  color: var(--fg-muted);
}
.alert {
  background: rgba(239,68,68,0.1);
  border: 1px solid var(--error);
  border-radius: 8px;
  padding: 12px;
  margin-bottom: 12px;
  color: var(--error);
}
.alert.success { background: rgba(22,163,74,0.1); border-color: var(--success); color: var(--success); }
.alert.info { background: rgba(59,130,246,0.1); border-color: var(--accent); color: var(--accent); }

.footnote {
  margin-top: 32px;
  text-align: center;
  color: var(--fg-muted);
  font-size: 12px;
}

.loader {
  display: inline-block;
  width: 18px; height: 18px;
  border: 2px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

.row { display: flex; gap: 8px; align-items: end; }
.row > * { flex: 1; }

.toolbar {
  display: flex;
  gap: 8px;
  margin-bottom: 16px;
  flex-wrap: wrap;
}
.toolbar > * { flex: 1; min-width: 140px; }
.chip {
  display: inline-block;
  background: var(--bg-card-hover);
  color: var(--fg);
  border: 1px solid var(--border);
  padding: 4px 10px;
  border-radius: 999px;
  font-size: 12px;
  margin-right: 6px;
}
.chip.standort { background: rgba(59,130,246,0.15); border-color: var(--accent); color: var(--accent); }

/* ===== Erfolgs-Blitz auf dem Kamerabild (gut sichtbar beim Dauer-Scannen) ===== */
@keyframes okflash {
  0%   { box-shadow: inset 0 0 0 8px var(--success); }
  100% { box-shadow: inset 0 0 0 0 rgba(22,163,74,0); }
}
.scanner-frame.ok { animation: okflash 0.55s ease-out; }