/*
  base.css
  Design-Tokens (Farben, Typografie, Abstände) und globale Basisstile.
  Design-Vorgabe: Material-naher Stil, Blau/Weiß/Hellgrau, große Karten,
  abgerundete Ecken, große Buttons, touchoptimiert, Mobile First.
*/

:root {
  /* Farben */
  --color-primary: #1565c0;
  --color-primary-dark: #0d47a1;
  --color-primary-light: #e3f0fd;
  --color-accent: #00897b;

  --color-bg: #f4f6f9;
  --color-surface: #ffffff;
  --color-border: #e1e5ec;

  --color-text: #1c2733;
  --color-text-muted: #5a6b7d;
  --color-text-inverse: #ffffff;

  --color-success: #2e7d32;
  --color-success-bg: #e8f5e9;
  --color-warning: #ed6c02;
  --color-warning-bg: #fff3e0;
  --color-danger: #c62828;
  --color-danger-bg: #fdecea;
  --color-info: #0277bd;
  --color-info-bg: #e1f5fe;

  --color-critical: #b71c1c;
  --color-critical-bg: #fde0e0;

  /* Typografie */
  --font-family: "Segoe UI", "Inter", -apple-system, BlinkMacSystemFont, sans-serif;
  --font-size-sm: 0.8125rem;
  --font-size-base: 0.9375rem;
  --font-size-md: 1.0625rem;
  --font-size-lg: 1.25rem;
  --font-size-xl: 1.6rem;

  /* Radien & Abstände */
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --space-xs: 4px;
  --space-sm: 8px;
  --space-md: 16px;
  --space-lg: 24px;
  --space-xl: 32px;

  /* Schatten */
  --shadow-sm: 0 1px 2px rgba(20, 30, 50, 0.06), 0 1px 3px rgba(20, 30, 50, 0.08);
  --shadow-md: 0 4px 12px rgba(20, 30, 50, 0.1);
  --shadow-lg: 0 10px 30px rgba(20, 30, 50, 0.14);

  /* Layout */
  --sidebar-width: 250px;
  --bottom-nav-height: 64px;
  --topbar-height: 60px;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  height: 100%;
}

body {
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 {
  margin: 0 0 var(--space-sm) 0;
  font-weight: 600;
  line-height: 1.25;
}

h1 { font-size: var(--font-size-xl); }
h2 { font-size: var(--font-size-lg); }
h3 { font-size: var(--font-size-md); }

p { margin: 0 0 var(--space-sm) 0; }

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

button {
  font-family: inherit;
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-xs);
  min-height: 44px;
  padding: 0 20px;
  border-radius: var(--radius-md);
  border: none;
  font-size: var(--font-size-base);
  font-weight: 600;
  cursor: pointer;
  transition: background-color 0.15s ease, box-shadow 0.15s ease, transform 0.05s ease;
  white-space: nowrap;
}
.btn:active { transform: scale(0.98); }
.btn:focus-visible {
  outline: 3px solid var(--color-primary-light);
  outline-offset: 2px;
}
.btn:disabled {
  opacity: 0.55;
  cursor: not-allowed;
}

.btn-primary {
  background: var(--color-primary);
  color: var(--color-text-inverse);
}
.btn-primary:hover:not(:disabled) { background: var(--color-primary-dark); }

.btn-secondary {
  background: var(--color-surface);
  color: var(--color-primary);
  border: 1.5px solid var(--color-primary);
}
.btn-secondary:hover:not(:disabled) { background: var(--color-primary-light); }

.btn-danger {
  background: var(--color-danger);
  color: var(--color-text-inverse);
}
.btn-danger:hover:not(:disabled) { background: #a31f1f; }

.btn-ghost {
  background: transparent;
  color: var(--color-text-muted);
}
.btn-ghost:hover:not(:disabled) { background: var(--color-bg); }

.btn-sm {
  min-height: 36px;
  padding: 0 14px;
  font-size: var(--font-size-sm);
}

.btn-icon {
  min-width: 44px;
  padding: 0;
}

.btn-block { width: 100%; }

/* --- Karten --- */
.card {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  padding: var(--space-lg);
}

/* --- Formulare --- */
.form-group {
  margin-bottom: var(--space-md);
}
.form-group label {
  display: block;
  margin-bottom: var(--space-xs);
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--color-text-muted);
}
.form-control {
  width: 100%;
  min-height: 46px;
  padding: 10px 14px;
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: var(--font-size-base);
  background: var(--color-surface);
  color: var(--color-text);
  transition: border-color 0.15s ease;
}
textarea.form-control {
  min-height: 110px;
  resize: vertical;
}
.form-control:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-light);
}
.form-hint {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  margin-top: var(--space-xs);
}
.form-error {
  font-size: var(--font-size-sm);
  color: var(--color-danger);
  margin-top: var(--space-xs);
}
.form-row {
  display: flex;
  gap: var(--space-md);
  flex-wrap: wrap;
}
.form-row > * { flex: 1 1 200px; }

/* --- Badges (Status/Priorität) --- */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px 12px;
  border-radius: 999px;
  font-size: var(--font-size-sm);
  font-weight: 600;
  white-space: nowrap;
}
.badge-neutral { background: var(--color-bg); color: var(--color-text-muted); }
.badge-info { background: var(--color-info-bg); color: var(--color-info); }
.badge-success { background: var(--color-success-bg); color: var(--color-success); }
.badge-warning { background: var(--color-warning-bg); color: var(--color-warning); }
.badge-danger { background: var(--color-danger-bg); color: var(--color-danger); }
.badge-critical { background: var(--color-critical-bg); color: var(--color-critical); }

/* --- Utility --- */
.text-muted { color: var(--color-text-muted); }
.text-center { text-align: center; }
.flex { display: flex; }
.flex-between { display: flex; align-items: center; justify-content: space-between; }
.flex-gap { display: flex; gap: var(--space-sm); flex-wrap: wrap; align-items: center; }
.mt-sm { margin-top: var(--space-sm); }
.mt-md { margin-top: var(--space-md); }
.mt-lg { margin-top: var(--space-lg); }
.mb-sm { margin-bottom: var(--space-sm); }
.mb-md { margin-bottom: var(--space-md); }
.hidden { display: none !important; }

.material-icons {
  font-size: 22px;
  vertical-align: middle;
  line-height: 1;
}

/* --- Skeleton Loader --- */
.skeleton {
  background: linear-gradient(90deg, #eceff3 25%, #f7f9fb 37%, #eceff3 63%);
  background-size: 400% 100%;
  animation: skeleton-loading 1.4s ease infinite;
  border-radius: var(--radius-sm);
}
@keyframes skeleton-loading {
  0% { background-position: 100% 50%; }
  100% { background-position: 0 50%; }
}
.skeleton-row { height: 52px; margin-bottom: var(--space-sm); }
.skeleton-text { height: 16px; width: 60%; margin-bottom: var(--space-sm); }

/* --- Scrollbar (dezent) --- */
::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-thumb { background: #c7ced8; border-radius: 8px; }

@media (prefers-reduced-motion: reduce) {
  * { animation-duration: 0.001ms !important; transition-duration: 0.001ms !important; }
}