/* Base animations and transitions */
@keyframes slideInRight {
    from {
        transform: translateX(100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: .5; }
}

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

@keyframes highlight {
    0% { background-size: 0% 40%; }
    100% { background-size: 100% 40%; }
}

/* Core floating panel styles */
.floating-panel {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%) !important;
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04) !important;
    border: 1px solid rgba(255, 255, 255, 0.1) !important;
}

.slide-in-right {
    animation: slideInRight 0.3s ease-out !important;
}

.fade-in {
    animation: fadeIn 0.3s ease-out !important;
}

.panel-minimized {
    transform: translateX(calc(100% - 60px)) !important;
}

/* Action buttons */
.action-button {
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1) !important;
    border: none !important;
    cursor: pointer !important;
    font-weight: 500 !important;
    text-align: left !important;
    position: relative !important;
    overflow: hidden !important;
}

.action-button::before {
    content: '' !important;
    position: absolute !important;
    top: 0 !important;
    left: -100% !important;
    width: 100% !important;
    height: 100% !important;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent) !important;
    transition: left 0.5s !important;
}

.action-button:hover::before {
    left: 100% !important;
}

.action-button:hover {
    transform: translateY(-2px) scale(1.02) !important;
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2) !important;
}

.action-button:active {
    transform: translateY(0) scale(0.98) !important;
}

/* Chat enhancements */
.chat-enhanced {
    position: relative !important;
    overflow-y: auto !important;
    max-height: 70vh !important;
    scrollbar-width: thin !important;
    scrollbar-color: #cbd5e0 #f7fafc !important;
    border-radius: 8px !important;
    border: 1px solid #e5e7eb !important;
}

.chat-enhanced::-webkit-scrollbar {
    width: 8px !important;
}

.chat-enhanced::-webkit-scrollbar-track {
    background: #f7fafc !important;
    border-radius: 4px !important;
}

.chat-enhanced::-webkit-scrollbar-thumb {
    background: #cbd5e0 !important;
    border-radius: 4px !important;
}

.chat-enhanced::-webkit-scrollbar-thumb:hover {
    background: #a0aec0 !important;
}

/* Textarea auto-resize */
.textarea-auto-resize {
    min-height: 44px !important;
    max-height: 300px !important;
    transition: height 0.2s ease !important;
    resize: none !important;
}

/* Fullscreen mode */
.fullscreen-chat {
    position: fixed !important;
    top: 0 !important;
    left: 0 !important;
    width: 100vw !important;
    height: 100vh !important;
    z-index: 9999 !important;
    background: white !important;
    overflow: hidden !important;
    display: flex !important;
    flex-direction: column !important;
    padding: 20px !important;
    box-sizing: border-box !important;
}

.fullscreen-chat .smooth-scroll {
    flex: 1 !important;
    overflow-y: auto !important;
    padding: 20px !important;
}

.fullscreen-exit {
    position: fixed !important;
    top: 20px !important;
    right: 20px !important;
    z-index: 10000 !important;
    background: white !important;
    border: 2px solid #e5e7eb !important;
    border-radius: 8px !important;
    padding: 8px 16px !important;
    cursor: pointer !important;
    display: flex !important;
    align-items: center !important;
    gap: 8px !important;
    font-weight: 500 !important;
    transition: all 0.2s ease !important;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1) !important;
}

.fullscreen-exit:hover {
    background: #f3f4f6 !important;
    transform: scale(1.05) !important;
    box-shadow: 0 6px 12px rgba(0, 0, 0, 0.15) !important;
}

/* Floating action buttons */
.floating-action-btn {
    position: fixed !important;
    bottom: 20px !important;
    right: 20px !important;
    width: 56px !important;
    height: 56px !important;
    border-radius: 50% !important;
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
    cursor: pointer !important;
    transition: all 0.3s ease !important;
    z-index: 1000 !important;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15) !important;
    border: none !important;
    color: white !important;
}

.floating-action-btn:hover {
    transform: scale(1.1) !important;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.25) !important;
}

.floating-action-btn:active {
    transform: scale(0.95) !important;
}

/* Status messages */
.status-message {
    border-radius: 8px !important;
    color: white !important;
    font-weight: 500 !important;
    z-index: 10000 !important;
    animation: fadeIn 0.3s ease-out !important;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15) !important;
    backdrop-filter: blur(10px) !important;
}

.status-success { 
    background: #10b981 !important; 
    border-left: 4px solid #059669 !important;
}
.status-error { 
    background: #ef4444 !important; 
    border-left: 4px solid #dc2626 !important;
}
.status-warning { 
    background: #f59e0b !important; 
    border-left: 4px solid #d97706 !important;
}
.status-info { 
    background: #3b82f6 !important; 
    border-left: 4px solid #2563eb !important;
}

/* Highlight effect */
.highlight-extraction {
    background: linear-gradient(120deg, #fbbf24 0%, #fbbf24 100%) !important;
    background-repeat: no-repeat !important;
    background-size: 100% 40% !important;
    background-position: 0 60% !important;
    animation: highlight 1s ease-in-out !important;
    border-radius: 4px !important;
    transition: all 0.3s ease !important;
}

/* Loading spinner */
.loading-spinner {
    display: inline-block !important;
    width: 16px !important;
    height: 16px !important;
    border: 2px solid rgba(255, 255, 255, 0.3) !important;
    border-radius: 50% !important;
    border-top-color: white !important;
    animation: spin 0.8s linear infinite !important;
}

/* Pulse animation */
.pulse {
    animation: pulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite !important;
}

/* GPU acceleration for better performance */
.gpu-accelerated {
    transform: translateZ(0) !important;
    will-change: transform !important;
}

/* No select for better UX */
.no-select {
    -webkit-user-select: none !important;
    -moz-user-select: none !important;
    -ms-user-select: none !important;
    user-select: none !important;
}

/* Smooth scroll */
.smooth-scroll {
    scroll-behavior: smooth !important;
    padding: 20px !important;
}

/* Responsive adjustments */
@media (max-width: 640px) {
    #hf-bookmarklet-panel {
        width: calc(100vw - 32px) !important;
        right: 16px !important;
        left: 16px !important;
    }
    
    .floating-action-btn {
        width: 48px !important;
        height: 48px !important;
        bottom: 16px !important;
        right: 16px !important;
    }
    
    #focus-input-btn {
        bottom: 72px !important;
    }
    
    .action-button {
        padding: 12px !important;
        font-size: 14px !important;
    }
    
    .status-message {
        right: 10px !important;
        left: 10px !important;
        font-size: 14px !important;
    }
}

@media (max-width: 480px) {
    #hf-bookmarklet-panel {
        width: calc(100vw - 16px) !important;
        right: 8px !important;
        left: 8px !important;
        top: 10px !important;
    }
    
    .floating-action-btn {
        width: 44px !important;
        height: 44px !important;
        bottom: 12px !important;
        right: 12px !important;
    }
    
    #focus-input-btn {
        bottom: 64px !important;
    }
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    .floating-panel {
        border: 2px solid white !important;
    }
    
    .action-button {
        border: 1px solid rgba(255, 255, 255, 0.3) !important;
    }
}

/* Reduced motion support */
@media (prefers-reduced-motion: reduce) {
    .slide-in-right,
    .fade-in,
    .highlight-extraction,
    .floating-action-btn,
    .action-button {
        animation: none !important;
        transition: none !important;
    }
    
    .floating-action-btn:hover {
        transform: none !important;
    }
}

/* Dark mode support */
@media (prefers-color-scheme: dark) {
    .chat-enhanced {
        background: #1f2937 !important;
        border-color: #374151 !important;
        color: #f9fafb !important;
    }
    
    .chat-enhanced::-webkit-scrollbar-track {
        background: #1f2937 !important;
    }
    
    .chat-enhanced::-webkit-scrollbar-thumb {
        background: #4b5563 !important;
    }
    
    .fullscreen-exit {
        background: #1f2937 !important;
        border-color: #374151 !important;
        color: #f9fafb !important;
    }
    
    .fullscreen-exit:hover {
        background: #374151 !important;
    }
}