/**
 * MYP Platform - Kiosk-Optimierte CSS
 * Maximale Performance für Offline-Kiosk-Umgebung
 * Keine Touch-Events, minimale Animationen, optimierte Rendering-Performance
 */

/* ===== CRITICAL INLINE STYLES (sollten im HTML-Head stehen) ===== */
:root {
  /* Reduzierte Farbvariablen für bessere Performance */
  --primary: #0073ce;
  --primary-dark: #005a9f;
  --bg: #fafbfc;
  --surface: #ffffff;
  --text: #111827;
  --text-muted: #6b7280;
  --border: #e5e7eb;
  --shadow: 0 2px 4px rgba(0,0,0,0.05);
}

/* CSS Containment für bessere Performance */
* {
  contain: layout style;
}

/* Basis-Reset ohne aufwendige Normalisierung */
* { box-sizing: border-box; margin: 0; padding: 0; }
body {
  font-family: system-ui, -apple-system, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
  contain: layout style paint;
  /* Optimiert für Kiosk-Rendering */
  text-rendering: optimizeSpeed;
  -webkit-font-smoothing: antialiased;
}

/* ===== LAYOUT OPTIMIERUNGEN ===== */
.header {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  padding: 1rem;
  contain: layout style;
}

.nav {
  display: flex;
  gap: 1rem;
  contain: layout;
}

.nav-item {
  padding: 0.5rem 1rem;
  border-radius: 6px;
  text-decoration: none;
  color: var(--text-muted);
  transition: background-color 0.1s ease; /* Minimale Transition */
}

.nav-item:hover {
  background: var(--bg);
  color: var(--text);
}

.nav-item.active {
  background: var(--primary);
  color: white;
}

/* ===== OPTIMIERTE KARTEN ===== */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 1rem;
  box-shadow: var(--shadow);
  contain: layout style paint;
}

.card:hover {
  transform: translateY(-1px); /* Minimaler Hover-Effekt */
}

/* ===== BUTTONS OHNE KOMPLEXE ANIMATIONEN ===== */
.btn {
  background: var(--primary);
  color: white;
  border: none;
  border-radius: 6px;
  padding: 0.75rem 1.5rem;
  font-weight: 600;
  cursor: pointer;
  transition: background-color 0.1s ease;
  contain: layout style;
}

.btn:hover {
  background: var(--primary-dark);
}

.btn-secondary {
  background: var(--surface);
  color: var(--text);
  border: 1px solid var(--border);
}

.btn-secondary:hover {
  background: var(--bg);
}

/* ===== INPUTS OPTIMIERT ===== */
.input {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 0.75rem;
  width: 100%;
  transition: border-color 0.1s ease;
  contain: layout style;
}

.input:focus {
  outline: none;
  border-color: var(--primary);
}

/* ===== TABELLEN OHNE KOMPLEXE EFFEKTE ===== */
.table {
  width: 100%;
  border-collapse: collapse;
  background: var(--surface);
  border-radius: 8px;
  overflow: hidden;
  contain: layout;
}

.table th {
  background: var(--bg);
  padding: 1rem;
  text-align: left;
  font-weight: 600;
  border-bottom: 1px solid var(--border);
}

.table td {
  padding: 1rem;
  border-bottom: 1px solid var(--border);
}

.table tr:hover {
  background: var(--bg);
}

/* ===== STATUS BADGES VEREINFACHT ===== */
.status {
  display: inline-block;
  padding: 0.25rem 0.75rem;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
}

.status-online { background: #d1fae5; color: #065f46; }
.status-offline { background: #fee2e2; color: #991b1b; }
.status-printing { background: #dbeafe; color: #1e40af; }

/* ===== GRID LAYOUTS OPTIMIERT ===== */
.grid {
  display: grid;
  gap: 1rem;
  contain: layout;
}

.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

/* ===== UTILITIES MINIMAL ===== */
.flex { display: flex; contain: layout; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-1 { gap: 0.25rem; }
.gap-2 { gap: 0.5rem; }
.gap-4 { gap: 1rem; }

.p-1 { padding: 0.25rem; }
.p-2 { padding: 0.5rem; }
.p-4 { padding: 1rem; }
.p-6 { padding: 1.5rem; }

.m-1 { margin: 0.25rem; }
.m-2 { margin: 0.5rem; }
.m-4 { margin: 1rem; }

.mb-2 { margin-bottom: 0.5rem; }
.mb-4 { margin-bottom: 1rem; }
.mb-6 { margin-bottom: 1.5rem; }

.text-sm { font-size: 0.875rem; }
.text-lg { font-size: 1.125rem; }
.text-xl { font-size: 1.25rem; }
.text-2xl { font-size: 1.5rem; }

.font-semibold { font-weight: 600; }
.font-bold { font-weight: 700; }

.text-center { text-align: center; }
.text-right { text-align: right; }

.w-full { width: 100%; }
.h-full { height: 100%; }

.rounded { border-radius: 6px; }
.rounded-lg { border-radius: 8px; }

.border { border: 1px solid var(--border); }
.border-t { border-top: 1px solid var(--border); }
.border-b { border-bottom: 1px solid var(--border); }

.bg-white { background: var(--surface); }
.bg-gray-50 { background: var(--bg); }

.text-gray-600 { color: var(--text-muted); }
.text-blue-600 { color: var(--primary); }

/* ===== DARK MODE MINIMAL ===== */
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #1e293b;
    --surface: #334155;
    --text: #f8fafc;
    --text-muted: #94a3b8;
    --border: #475569;
    --shadow: 0 2px 4px rgba(0,0,0,0.3);
  }
}

/* ===== RESPONSIVE FÜR KIOSK-DISPLAYS ===== */
@media (max-width: 1024px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .grid-4,
  .grid-3,
  .grid-2 { grid-template-columns: 1fr; }
  
  .nav {
    flex-direction: column;
    gap: 0.5rem;
  }
}

/* ===== PERFORMANCE OPTIMIERUNGEN ===== */
/* Deaktivierung nicht benötigter Features für Kiosk */
* {
  /* Keine Touch-Events */
  touch-action: none;
  -webkit-touch-callout: none;
  -webkit-user-select: none;
  user-select: none;
}

/* Nur notwendige Elemente selektierbar */
input,
textarea {
  -webkit-user-select: text;
  user-select: text;
  touch-action: manipulation;
}

/* Optimierte Scrolling-Performance */
* {
  -webkit-overflow-scrolling: touch;
  scroll-behavior: smooth;
}

/* GPU-Acceleration nur wo nötig */
.card:hover,
.btn:hover {
  will-change: transform;
}

/* Minimale Animationen für bessere Performance */
@media (prefers-reduced-motion: reduce) {
  * {
    transition: none !important;
    animation: none !important;
  }
}

/* Print-Optimierung (falls Kiosk drucken kann) */
@media print {
  .nav,
  .btn {
    display: none;
  }
  
  .card {
    box-shadow: none;
    border: 1px solid #000;
  }
}

/* ===== LAYOUT SHIFT PREVENTION ===== */
img {
  height: auto;
  max-width: 100%;
  vertical-align: middle;
}

/* Container für stabile Layouts */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1rem;
  contain: layout;
}

/* ===== KIOSK-SPEZIFISCHE OPTIMIERUNGEN ===== */
/* Vollbildmodus-Unterstützung */
html,
body {
  height: 100%;
  overflow-x: hidden;
}

/* Fokus-Management für Keyboard-Navigation */
:focus {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}

/* Kein Selection-Highlighting */
::selection {
  background: transparent;
}

/* Optimierte Font-Loading */
@font-face {
  font-family: 'system-ui';
  font-display: swap;
}