/* Toast, popups, empty states, and skeleton placeholders */
.popup-overlay { position: fixed; inset: 0; z-index: 200; background: rgba(0,0,0,0.7); backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px); display: flex; align-items: flex-end; justify-content: center; padding: 20px; opacity: 0; pointer-events: none; transition: opacity 0.3s; }
.popup-overlay.open { opacity: 1; pointer-events: all; }
.popup-sheet { width: 100%; max-width: 480px; background: rgba(18,18,30,0.96); backdrop-filter: var(--blur); -webkit-backdrop-filter: var(--blur); border: 1px solid rgba(255,255,255,0.14); border-radius: 24px; padding: 28px 24px; transform: translateY(30px); transition: transform 0.4s var(--spring); box-shadow: 0 -8px 40px rgba(0,0,0,0.5), inset 0 1px 0 rgba(255,255,255,0.12); }
.popup-overlay.open .popup-sheet { transform: translateY(0); }
.popup-title { font-family: 'Bebas Neue', sans-serif; font-size: 26px; letter-spacing: 1px; margin-bottom: 6px; }
.popup-sub { font-size: 13px; color: var(--muted2); margin-bottom: 24px; }
.popup-btns { display: flex; gap: 8px; margin-top: 20px; }
.popup-btn { flex: 1; padding: 13px; border-radius: 12px; border: 1px solid rgba(255,255,255,0.10); background: rgba(255,255,255,0.06); color: var(--text); font-family: -apple-system, system-ui, sans-serif; font-size: 13px; font-weight: 600; cursor: pointer; transition: all 0.25s var(--spring); -webkit-tap-highlight-color: transparent; }
.popup-btn:active { transform: scale(0.96); }
.popup-btn.primary { background: var(--accent); border-color: transparent; color: #000; box-shadow: 0 4px 12px rgba(232,244,77,0.3); }
.popup-btn.primary.danger { background: var(--red); color: #fff; box-shadow: 0 4px 12px rgba(255,79,79,0.26); }
.confirm-popup-details { margin: -8px 0 16px; padding: 12px; border-radius: 12px; border: 1px solid rgba(255,255,255,0.10); background: rgba(255,255,255,0.05); color: var(--text2); font-size: 12px; line-height: 1.45; }

#toast { position: fixed; bottom: calc(var(--nav-h) + var(--safe-bottom) + 16px); left: 50%; transform: translateX(-50%) translateY(20px); background: rgba(30,30,45,0.92); backdrop-filter: blur(30px); -webkit-backdrop-filter: blur(30px); border: 1px solid rgba(255,255,255,0.14); color: var(--text); padding: 10px 16px; border-radius: 14px; font-size: 12px; display: flex; align-items: center; gap: 10px; z-index: 600; opacity: 0; pointer-events: none; transition: opacity 0.25s, transform 0.35s var(--spring); white-space: nowrap; max-width: calc(100vw - 40px); box-shadow: 0 8px 32px rgba(0,0,0,0.4); }
#toast.show { opacity: 1; transform: translateX(-50%) translateY(0); pointer-events: all; }
#toast-undo { color: var(--accent); font-weight: 700; cursor: pointer; font-size: 11px; letter-spacing: 1px; text-transform: uppercase; }

.empty-state { text-align: center; padding: 60px 20px; color: var(--muted2); }
.empty-state-icon { font-size: 48px; margin-bottom: 16px; opacity: 0.5; }
.empty-state-title { font-family: 'Bebas Neue', sans-serif; font-size: 28px; letter-spacing: 1px; color: var(--text2); margin-bottom: 8px; }
.empty-state-sub { font-size: 13px; color: var(--muted2); }
.skeleton { background: linear-gradient(90deg, rgba(255,255,255,0.04) 25%, rgba(255,255,255,0.08) 50%, rgba(255,255,255,0.04) 75%); background-size: 200% 100%; animation: shimmer 1.5s infinite; border-radius: 10px; }
@keyframes shimmer { 0% { background-position: 200% 0; } 100% { background-position: -200% 0; } }

@media(max-width:430px) {
  .popup-overlay { padding: 12px; }
  .popup-sheet { max-height: 88vh; overflow: auto; padding: 22px 18px; border-radius: 22px; }
}