/**
 * UX Kit — Vanilla CSS
 * Styles für Komponenten die kein Shadow DOM nutzen.
 * Importiert tokens.css als Abhängigkeit.
 *
 * Verwendung:
 *   <link rel="stylesheet" href="/static/css/tokens.css">
 *   <link rel="stylesheet" href="/static/css/ux-kit.css">
 *
 * Hinweis: Toast, Skeleton, EmptyState und Tooltip nutzen Shadow DOM oder
 * injecten ihre eigenen <style>-Tags — sie benötigen diese Datei NICHT.
 * Diese Datei enthält globale Utilities und Hilfsklassen für Vanilla-Templates.
 */

/* ── Reset / Basis ──────────────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; }

/* ── Button-Utilities ───────────────────────────────────────────────────────── */
.ux-btn {
  all: unset;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.375rem;
  padding: 0.5rem 1rem;
  border-radius: var(--radius-md);
  font-size: var(--text-sm);
  font-weight: 600;
  cursor: pointer;
  transition: background var(--transition-fast), color var(--transition-fast),
              box-shadow var(--transition-fast), opacity var(--transition-fast);
  line-height: 1;
  font-family: var(--font-sans);
  white-space: nowrap;
  user-select: none;
}

.ux-btn:focus-visible {
  outline: 2px solid var(--color-primary-500);
  outline-offset: 2px;
}

.ux-btn:disabled { opacity: 0.45; cursor: not-allowed; }

/* Varianten */
.ux-btn-primary {
  background: var(--color-primary-600);
  color: #fff;
  border: 1px solid transparent;
}
.ux-btn-primary:hover:not(:disabled) { background: var(--color-primary-500); }

.ux-btn-secondary {
  background: var(--color-bg-surface);
  color: var(--color-text-muted);
  border: 1px solid var(--color-border);
}
.ux-btn-secondary:hover:not(:disabled) {
  background: var(--color-bg-muted);
  color: var(--color-text);
}

.ux-btn-ghost {
  background: transparent;
  color: var(--color-text-muted);
  border: 1px solid transparent;
}
.ux-btn-ghost:hover:not(:disabled) { background: var(--color-bg-surface); color: var(--color-text); }

.ux-btn-danger {
  background: var(--color-error);
  color: #fff;
  border: 1px solid transparent;
}
.ux-btn-danger:hover:not(:disabled) { background: #dc2626; }

/* Größen */
.ux-btn-sm { padding: 0.3125rem 0.625rem; font-size: 0.8125rem; }
.ux-btn-lg { padding: 0.6875rem 1.375rem; font-size: var(--text-base); }
.ux-btn-icon { padding: 0.5rem; width: 2.25rem; height: 2.25rem; }
.ux-btn-icon.ux-btn-sm { padding: 0.375rem; width: 1.75rem; height: 1.75rem; }

/* ── Badge ─────────────────────────────────────────────────────────────────── */
.ux-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  padding: 0.1875rem 0.5rem;
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 600;
  line-height: 1;
  white-space: nowrap;
}

.ux-badge-default {
  background: var(--color-bg-surface);
  color: var(--color-text-muted);
  border: 1px solid var(--color-border);
}
.ux-badge-primary {
  background: color-mix(in srgb, var(--color-primary-600) 20%, transparent);
  color: var(--color-primary-400);
  border: 1px solid color-mix(in srgb, var(--color-primary-600) 30%, transparent);
}
.ux-badge-success {
  background: var(--color-success-bg);
  color: var(--color-success);
  border: 1px solid color-mix(in srgb, var(--color-success) 25%, transparent);
}
.ux-badge-error {
  background: var(--color-error-bg);
  color: var(--color-error);
  border: 1px solid color-mix(in srgb, var(--color-error) 25%, transparent);
}
.ux-badge-warning {
  background: var(--color-warning-bg);
  color: var(--color-warning);
  border: 1px solid color-mix(in srgb, var(--color-warning) 25%, transparent);
}
.ux-badge-info {
  background: var(--color-info-bg);
  color: var(--color-info);
  border: 1px solid color-mix(in srgb, var(--color-info) 25%, transparent);
}

/* ── Card ──────────────────────────────────────────────────────────────────── */
.ux-card {
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-6);
}

.ux-card-sm { padding: var(--space-4); border-radius: var(--radius-lg); }
.ux-card-lg { padding: var(--space-8); border-radius: var(--radius-2xl); }

/* ── Input ─────────────────────────────────────────────────────────────────── */
.ux-input {
  display: block;
  width: 100%;
  padding: 0.5625rem 0.75rem;
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  color: var(--color-text);
  font-size: var(--text-sm);
  font-family: var(--font-sans);
  line-height: var(--leading-normal);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
  outline: none;
}

.ux-input::placeholder { color: var(--color-text-subtle); }

.ux-input:focus {
  border-color: var(--color-primary-500);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--color-primary-500) 20%, transparent);
}

.ux-input:disabled { opacity: 0.5; cursor: not-allowed; }
.ux-input-error { border-color: var(--color-error); }
.ux-input-error:focus { box-shadow: 0 0 0 3px color-mix(in srgb, var(--color-error) 20%, transparent); }

/* ── Label ─────────────────────────────────────────────────────────────────── */
.ux-label {
  display: block;
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: var(--space-2);
}

.ux-field-error {
  font-size: 0.8125rem;
  color: var(--color-error);
  margin-top: var(--space-1);
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

/* ── Alert ─────────────────────────────────────────────────────────────────── */
.ux-alert {
  display: flex;
  gap: 0.75rem;
  padding: 0.875rem 1rem;
  border-radius: var(--radius-lg);
  font-size: var(--text-sm);
  line-height: var(--leading-normal);
  border: 1px solid;
}

.ux-alert-icon { flex-shrink: 0; font-size: 1rem; }
.ux-alert-body { flex: 1; min-width: 0; }
.ux-alert-title { font-weight: 600; margin-bottom: 0.125rem; }

.ux-alert-success {
  background: var(--color-success-bg);
  border-color: color-mix(in srgb, var(--color-success) 25%, transparent);
  color: var(--color-success);
}
.ux-alert-error {
  background: var(--color-error-bg);
  border-color: color-mix(in srgb, var(--color-error) 25%, transparent);
  color: var(--color-error);
}
.ux-alert-warning {
  background: var(--color-warning-bg);
  border-color: color-mix(in srgb, var(--color-warning) 25%, transparent);
  color: var(--color-warning);
}
.ux-alert-info {
  background: var(--color-info-bg);
  border-color: color-mix(in srgb, var(--color-info) 25%, transparent);
  color: var(--color-info);
}

/* ── Table ─────────────────────────────────────────────────────────────────── */
.ux-table {
  width: 100%;
  border-collapse: collapse;
  font-size: var(--text-sm);
  color: var(--color-text);
}

.ux-table th {
  padding: 0.625rem 0.875rem;
  text-align: left;
  font-weight: 600;
  color: var(--color-text-muted);
  font-size: 0.8125rem;
  border-bottom: 1px solid var(--color-border);
  white-space: nowrap;
  user-select: none;
}

.ux-table td {
  padding: 0.75rem 0.875rem;
  border-bottom: 1px solid var(--color-border);
  vertical-align: middle;
}

.ux-table tr:last-child td { border-bottom: none; }
.ux-table tr:hover td { background: var(--color-bg-elevated); }

/* ── Divider ────────────────────────────────────────────────────────────────── */
.ux-divider {
  height: 1px;
  background: var(--color-border);
  border: none;
  margin: var(--space-4) 0;
}

.ux-divider-label {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-size: 0.8125rem;
  color: var(--color-text-subtle);
  margin: var(--space-4) 0;
}
.ux-divider-label::before,
.ux-divider-label::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--color-border);
}

/* ── Spinner ────────────────────────────────────────────────────────────────── */
.ux-spinner {
  display: inline-block;
  width: 1.25rem;
  height: 1.25rem;
  border: 2px solid var(--color-bg-muted);
  border-top-color: var(--color-primary-500);
  border-radius: 50%;
  animation: ux-spin 0.7s linear infinite;
}
.ux-spinner-sm { width: 1rem; height: 1rem; border-width: 2px; }
.ux-spinner-lg { width: 2rem; height: 2rem; border-width: 3px; }

@keyframes ux-spin { to { transform: rotate(360deg); } }

/* ── Tag / Chip ─────────────────────────────────────────────────────────────── */
.ux-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  padding: 0.1875rem 0.5rem;
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
  font-weight: 500;
  background: var(--color-bg-surface);
  color: var(--color-text-muted);
  border: 1px solid var(--color-border);
  cursor: default;
  user-select: none;
  line-height: 1;
}

.ux-tag-remove {
  all: unset;
  cursor: pointer;
  opacity: 0.6;
  transition: opacity 0.15s;
  line-height: 1;
  display: inline-flex;
}
.ux-tag-remove:hover { opacity: 1; }

/* ── Kbd ────────────────────────────────────────────────────────────────────── */
.ux-kbd {
  display: inline-flex;
  align-items: center;
  padding: 0.125rem 0.375rem;
  background: var(--color-bg-surface);
  border: 1px solid var(--color-border-muted);
  border-bottom-width: 2px;
  border-radius: var(--radius-sm);
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  color: var(--color-text-muted);
  line-height: 1.5;
  user-select: none;
}

/* ── Animations ─────────────────────────────────────────────────────────────── */
@keyframes ux-fade-in  { from { opacity: 0; } to { opacity: 1; } }
@keyframes ux-fade-out { from { opacity: 1; } to { opacity: 0; } }
@keyframes ux-slide-up { from { transform: translateY(0.5rem); opacity: 0; } to { transform: translateY(0); opacity: 1; } }

.ux-animate-fade-in  { animation: ux-fade-in  var(--transition-normal) ease both; }
.ux-animate-fade-out { animation: ux-fade-out var(--transition-normal) ease both; }
.ux-animate-slide-up { animation: ux-slide-up var(--transition-normal) var(--ease-out-expo) both; }

/* ── Reduced Motion ─────────────────────────────────────────────────────────── */
@media (prefers-reduced-motion: reduce) {
  .ux-spinner { animation: none; border-top-color: var(--color-primary-500); opacity: 0.7; }
  .ux-animate-fade-in, .ux-animate-fade-out, .ux-animate-slide-up { animation: none; }
}