/* ═══════════════════════════════════════════════════════════════════
   PROVA Systems · Empty-State + Skeleton-Library v1.0 (MEGA⁷ U3)
   Pflicht-Lektuere CLAUDE.md Empty-States-Regel:
   1. Icon (groß, freundlich)
   2. Titel (was fehlt, neutral)
   3. 1-2 Saetze was passiert nach der Aktion
   4. Primaer-Button
   5. Optional zweiter Weg (Demo-Fall, Hilfe)
   ═══════════════════════════════════════════════════════════════════ */

/* ── Empty-State Container ── */
.prova-empty-state {
  text-align: center;
  padding: 48px 32px;
  max-width: 480px;
  margin: 32px auto;
  background: var(--surface, #1c2537);
  border: 1px solid var(--border, rgba(255,255,255,0.07));
  border-radius: 14px;
  position: relative;
}

.prova-empty-state__icon {
  font-size: 56px;
  margin-bottom: 16px;
  display: block;
  opacity: 0.85;
  line-height: 1;
}

.prova-empty-state__title {
  font-size: 18px;
  font-weight: 700;
  color: var(--text, #e8eaf0);
  margin-bottom: 8px;
  letter-spacing: -0.01em;
}

.prova-empty-state__text {
  font-size: 14px;
  color: var(--text2, #aab4cb);
  line-height: 1.6;
  margin-bottom: 24px;
}

.prova-empty-state__actions {
  display: flex;
  gap: 10px;
  justify-content: center;
  flex-wrap: wrap;
}

.prova-empty-state__btn {
  display: inline-block;
  padding: 11px 20px;
  background: linear-gradient(135deg, var(--accent, #4f8ef7), var(--accent2, #3a7be0));
  color: white;
  border-radius: 10px;
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
  border: none;
  cursor: pointer;
  font-family: inherit;
  transition: transform 0.15s, box-shadow 0.15s;
}
.prova-empty-state__btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 16px rgba(79,142,247,0.4);
}

.prova-empty-state__btn--secondary {
  background: transparent;
  color: var(--accent, #4f8ef7);
  border: 1px solid var(--accent, #4f8ef7);
}
.prova-empty-state__btn--secondary:hover {
  background: rgba(79,142,247,0.08);
  box-shadow: none;
  transform: none;
}

/* ── Skeleton-Loaders ── */
@keyframes prova-skeleton-pulse {
  0%, 100% { opacity: 0.4; }
  50%      { opacity: 0.8; }
}

.prova-skeleton {
  display: inline-block;
  background: linear-gradient(90deg,
    var(--surface, #1c2537) 0%,
    var(--surface2, #222d42) 50%,
    var(--surface, #1c2537) 100%);
  background-size: 200% 100%;
  animation: prova-skeleton-pulse 1.4s ease-in-out infinite;
  border-radius: 6px;
  height: 16px;
  width: 100%;
  vertical-align: middle;
}

.prova-skeleton--text-short  { width: 60%; }
.prova-skeleton--text-medium { width: 80%; }
.prova-skeleton--title       { height: 22px; width: 50%; }
.prova-skeleton--block       { height: 80px; width: 100%; border-radius: 10px; }
.prova-skeleton--avatar      { width: 40px; height: 40px; border-radius: 50%; }
.prova-skeleton--button      { width: 100px; height: 36px; border-radius: 8px; }
.prova-skeleton--card        { height: 140px; width: 100%; border-radius: 14px; margin-bottom: 12px; }

/* ── Skeleton Liste-Layout ── */
.prova-skeleton-list { display: flex; flex-direction: column; gap: 8px; }
.prova-skeleton-list .row {
  display: flex; align-items: center; gap: 12px;
  padding: 12px;
  background: var(--surface, #1c2537);
  border: 1px solid var(--border, rgba(255,255,255,0.07));
  border-radius: 10px;
}
.prova-skeleton-list .row .col-grow { flex: 1; display: flex; flex-direction: column; gap: 6px; }

/* ── Toast-Notifications (Success-Feedback) ── */
.prova-toast {
  position: fixed; bottom: 24px; left: 50%;
  transform: translateX(-50%) translateY(100px);
  background: var(--surface, #1c2537);
  border: 1px solid var(--border2, rgba(255,255,255,0.12));
  padding: 12px 20px;
  border-radius: 12px;
  font-size: 14px; color: var(--text, #e8eaf0);
  box-shadow: 0 12px 36px rgba(0,0,0,0.4);
  opacity: 0; pointer-events: none;
  transition: opacity 0.25s ease, transform 0.25s ease;
  z-index: 9999;
  max-width: calc(100vw - 32px);
}
.prova-toast.show { opacity: 1; transform: translateX(-50%) translateY(0); pointer-events: auto; }

.prova-toast--success { border-color: rgba(16,185,129,0.4); }
.prova-toast--success::before { content: '✓ '; color: var(--green, #10b981); font-weight: 700; }
.prova-toast--error   { border-color: rgba(239,68,68,0.4); }
.prova-toast--error::before { content: '✕ '; color: var(--red, #ef4444); font-weight: 700; }
.prova-toast--info    { border-color: rgba(79,142,247,0.4); }

/* ── Mobile-Anpassungen ── */
@media (max-width: 640px) {
  .prova-empty-state { padding: 32px 20px; margin: 16px; }
  .prova-empty-state__icon { font-size: 48px; }
  .prova-empty-state__title { font-size: 16px; }
  .prova-toast { bottom: 16px; left: 16px; right: 16px; transform: translateY(100px); }
  .prova-toast.show { transform: translateY(0); }
}