/**
 * Floating Action Bar Styles
 * Requirements: 3.6
 * 
 * A floating action bar that appears on scroll with quick actions
 */

.floating-action-bar {
    position: fixed;
    bottom: 24px;
    right: 24px;
    display: flex;
    gap: 8px;
    background: var(--color-bg, #ffffff);
    padding: 8px;
    border-radius: 50px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15), 0 0 0 1px rgba(0, 0, 0, 0.05);
    z-index: 1000;
    opacity: 0;
    transform: translateY(20px) scale(0.95);
    transition: opacity 0.3s ease, transform 0.3s ease;
    pointer-events: none;
}

.floating-action-bar.visible {
    opacity: 1;
    transform: translateY(0) scale(1);
    pointer-events: auto;
}

/* Buttons */
.floating-action-bar__btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    width: 44px;
    height: 44px;
    border: none;
    background: transparent;
    color: var(--color-text-secondary, #64748b);
    border-radius: 50%;
    cursor: pointer;
    transition: all 0.2s ease;
    position: relative;
    padding: 0;
}

.floating-action-bar__btn:hover {
    background: var(--color-bg-secondary, #f1f5f9);
    color: var(--color-text, #1e293b);
    transform: scale(1.1);
}

.floating-action-bar__btn:active {
    transform: scale(0.95);
}

.floating-action-bar__btn:focus {
    outline: 2px solid var(--color-primary, #3b82f6);
    outline-offset: 2px;
}

/* Icon */
.floating-action-bar__btn .icon {
    flex-shrink: 0;
}

/* Count badge */
.floating-action-bar__count {
    position: absolute;
    top: -4px;
    right: -4px;
    background: var(--color-primary, #3b82f6);
    color: white;
    font-size: 11px;
    font-weight: 600;
    padding: 2px 6px;
    border-radius: 10px;
    min-width: 20px;
    text-align: center;
    line-height: 1.2;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

/* Like button */
.floating-action-bar__btn--like {
    color: var(--color-text-secondary, #64748b);
}

.floating-action-bar__btn--like:hover {
    color: #ef4444;
}

.floating-action-bar__btn--like.active {
    color: #ef4444;
}

.floating-action-bar__btn--like.active svg {
    fill: currentColor;
}

.floating-action-bar__btn--like.like-animate {
    animation: heartBeat 0.3s ease;
}

.floating-action-bar__btn--like.is-loading {
    opacity: 0.6;
    pointer-events: none;
}

@keyframes heartBeat {
    0%, 100% {
        transform: scale(1);
    }
    25% {
        transform: scale(1.3);
    }
    50% {
        transform: scale(1.1);
    }
}

/* Bookmark button */
.floating-action-bar__btn--bookmark {
    color: var(--color-text-secondary, #64748b);
}

.floating-action-bar__btn--bookmark:hover {
    color: #f59e0b;
}

.floating-action-bar__btn--bookmark.active {
    color: #f59e0b;
}

.floating-action-bar__btn--bookmark.active svg {
    fill: currentColor;
}

.floating-action-bar__btn--bookmark.bookmark-animate {
    animation: bookmarkPop 0.3s ease;
}

.floating-action-bar__btn--bookmark.is-loading {
    opacity: 0.6;
    pointer-events: none;
}

@keyframes bookmarkPop {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.2);
    }
}

/* Share button */
.floating-action-bar__btn--share {
    color: var(--color-text-secondary, #64748b);
}

.floating-action-bar__btn--share:hover {
    color: var(--color-primary, #3b82f6);
}

/* Toast notifications */
.floating-action-bar__toast {
    position: fixed;
    bottom: 90px;
    right: 24px;
    background: var(--color-bg, #ffffff);
    color: var(--color-text, #1e293b);
    padding: 12px 20px;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    font-size: 14px;
    font-weight: 500;
    z-index: 1001;
    opacity: 0;
    transform: translateY(10px);
    transition: opacity 0.3s ease, transform 0.3s ease;
    pointer-events: none;
}

.floating-action-bar__toast.visible {
    opacity: 1;
    transform: translateY(0);
}

.floating-action-bar__toast--success {
    background: #10b981;
    color: white;
}

.floating-action-bar__toast--error {
    background: #ef4444;
    color: white;
}

.floating-action-bar__toast--info {
    background: var(--color-primary, #3b82f6);
    color: white;
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .floating-action-bar {
        bottom: 16px;
        right: 16px;
        padding: 6px;
        gap: 6px;
    }
    
    .floating-action-bar__btn {
        width: 40px;
        height: 40px;
    }
    
    .floating-action-bar__toast {
        bottom: 74px;
        right: 16px;
        left: 16px;
        text-align: center;
    }
}

/* Dark mode support */
[data-theme="dark"] .floating-action-bar {
    background: var(--color-bg-dark, #1e293b);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3), 0 0 0 1px rgba(255, 255, 255, 0.1);
}

[data-theme="dark"] .floating-action-bar__btn {
    color: var(--color-text-secondary-dark, #94a3b8);
}

[data-theme="dark"] .floating-action-bar__btn:hover {
    background: var(--color-bg-secondary-dark, #334155);
    color: var(--color-text-dark, #f1f5f9);
}

[data-theme="dark"] .floating-action-bar__toast {
    background: var(--color-bg-dark, #1e293b);
    color: var(--color-text-dark, #f1f5f9);
}

/* Accessibility: Reduce motion */
@media (prefers-reduced-motion: reduce) {
    .floating-action-bar,
    .floating-action-bar__btn,
    .floating-action-bar__toast {
        transition: none;
        animation: none;
    }
    
    .floating-action-bar__btn--like.active svg,
    .floating-action-bar__btn--bookmark.active svg {
        animation: none;
    }
}

/* Print: Hide floating action bar */
@media print {
    .floating-action-bar {
        display: none;
    }
}