/* AI Chatbot Styles v2.0 - Modern Design */
:root {
    --ai-chatbot-primary: #6366f1;
    --ai-chatbot-secondary: #8b5cf6;
    --ai-chatbot-text: #ffffff;
    --ai-chatbot-bg: #ffffff;
    --ai-chatbot-surface: #f8fafc;
    --ai-chatbot-border: #e2e8f0;
    --ai-chatbot-user-msg-bg: linear-gradient(135deg, var(--ai-chatbot-primary), var(--ai-chatbot-secondary));
    --ai-chatbot-user-msg-color: #ffffff;
    --ai-chatbot-bot-msg-bg: #f1f5f9;
    --ai-chatbot-bot-msg-color: #1e293b;
    --ai-chatbot-shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --ai-chatbot-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --ai-chatbot-shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --ai-chatbot-shadow-xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    --ai-chatbot-radius: 16px;
    --ai-chatbot-radius-sm: 8px;
    --ai-chatbot-transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Dark mode */
.ai-chatbot-dark {
    --ai-chatbot-bg: #1e1e2e;
    --ai-chatbot-surface: #2a2a3e;
    --ai-chatbot-border: #3f3f5a;
    --ai-chatbot-bot-msg-bg: #2a2a3e;
    --ai-chatbot-bot-msg-color: #e2e8f0;
}

/* Container */
#ai-chatbot-container {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    font-size: 15px;
    line-height: 1.6;
    color: #1e293b;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Toggle Button */
#ai-chatbot-toggle {
    position: fixed;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 64px;
    height: 64px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--ai-chatbot-primary), var(--ai-chatbot-secondary));
    color: var(--ai-chatbot-text);
    box-shadow: var(--ai-chatbot-shadow-lg), 0 0 0 0 rgba(99, 102, 241, 0.4);
    cursor: pointer;
    z-index: 9999;
    transition: var(--ai-chatbot-transition);
    animation: ai-chatbot-pulse 2s infinite;
}

@keyframes ai-chatbot-pulse {
    0%, 100% {
        box-shadow: var(--ai-chatbot-shadow-lg), 0 0 0 0 rgba(99, 102, 241, 0.4);
    }
    50% {
        box-shadow: var(--ai-chatbot-shadow-lg), 0 0 0 8px rgba(99, 102, 241, 0);
    }
}

#ai-chatbot-toggle:hover {
    transform: scale(1.08);
    animation: none;
}

#ai-chatbot-toggle.open {
    animation: none;
    transform: rotate(0deg);
}

/* Position variations */
#ai-chatbot-toggle.bottom-right { bottom: 24px; right: 24px; }
#ai-chatbot-toggle.bottom-left { bottom: 24px; left: 24px; }
#ai-chatbot-toggle.top-right { top: 24px; right: 24px; }
#ai-chatbot-toggle.top-left { top: 24px; left: 24px; }

#ai-chatbot-toggle .ai-chatbot-icon {
    width: 28px;
    height: 28px;
    transition: var(--ai-chatbot-transition);
}

#ai-chatbot-toggle.open .ai-chatbot-icon-chat { display: none; }
#ai-chatbot-toggle:not(.open) .ai-chatbot-icon-close { display: none; }

/* Chat Interface */
#ai-chatbot-interface {
    position: fixed;
    width: 380px;
    height: 520px;
    max-height: calc(100vh - 120px);
    background: var(--ai-chatbot-bg);
    border-radius: var(--ai-chatbot-radius);
    box-shadow: var(--ai-chatbot-shadow-xl);
    display: flex;
    flex-direction: column;
    z-index: 9998;
    overflow: hidden;
    overscroll-behavior: contain;
    touch-action: none;
    transition: var(--ai-chatbot-transition);
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px) scale(0.95);
    border: 1px solid var(--ai-chatbot-border);
}

#ai-chatbot-interface.open {
    opacity: 1;
    visibility: visible;
    transform: translateY(0) scale(1);
}

/* Position variations for interface */
#ai-chatbot-interface.bottom-right { bottom: 100px; right: 24px; }
#ai-chatbot-interface.bottom-left { bottom: 100px; left: 24px; }
#ai-chatbot-interface.top-right { top: 100px; right: 24px; }
#ai-chatbot-interface.top-left { top: 100px; left: 24px; }

/* Header */
#ai-chatbot-header {
    background: linear-gradient(135deg, var(--ai-chatbot-primary), var(--ai-chatbot-secondary));
    color: var(--ai-chatbot-text);
    padding: 16px 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-shrink: 0;
}

#ai-chatbot-header-info {
    display: flex;
    align-items: center;
    gap: 12px;
}

#ai-chatbot-header-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.2);
    display: flex;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(10px);
}

#ai-chatbot-header-avatar svg {
    width: 22px;
    height: 22px;
    color: white;
}

#ai-chatbot-header-text h3 {
    margin: 0;
    font-size: 16px;
    font-weight: 600;
    letter-spacing: -0.02em;
}

#ai-chatbot-header-status {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 12px;
    opacity: 0.9;
    margin-top: 2px;
}

.ai-chatbot-status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: #4ade80;
    animation: ai-chatbot-status-pulse 2s infinite;
}

@keyframes ai-chatbot-status-pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

.ai-chatbot-controls {
    display: flex;
    gap: 4px;
}

.ai-chatbot-controls button {
    background: rgba(255, 255, 255, 0.15);
    border: none;
    color: var(--ai-chatbot-text);
    cursor: pointer;
    font-size: 18px;
    width: 32px;
    height: 32px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--ai-chatbot-transition);
}

.ai-chatbot-controls button:hover {
    background: rgba(255, 255, 255, 0.25);
}

/* Messages Container */
#ai-chatbot-messages {
    flex: 1;
    overflow-y: auto;
    overflow-x: hidden;
    padding: 16px;
    display: flex;
    flex-direction: column;
    gap: 16px;
    background: var(--ai-chatbot-surface);
    scroll-behavior: smooth;
    scrollbar-width: thin;
    scrollbar-color: rgba(0, 0, 0, 0.15) transparent;
    overscroll-behavior: contain;
    -webkit-overflow-scrolling: touch;
    touch-action: pan-y;
    isolation: isolate;
}

#ai-chatbot-messages::-webkit-scrollbar {
    width: 6px;
}

#ai-chatbot-messages::-webkit-scrollbar-track {
    background: transparent;
}

#ai-chatbot-messages::-webkit-scrollbar-thumb {
    background-color: rgba(0, 0, 0, 0.15);
    border-radius: 10px;
}

/* Message wrapper with avatar */
.ai-chatbot-message-wrapper {
    display: flex;
    gap: 10px;
    animation: ai-chatbot-message-in 0.3s ease-out;
}

@keyframes ai-chatbot-message-in {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.ai-chatbot-message-wrapper.user {
    flex-direction: row-reverse;
}

.ai-chatbot-avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
}

.ai-chatbot-avatar.bot {
    background: linear-gradient(135deg, var(--ai-chatbot-primary), var(--ai-chatbot-secondary));
    color: white;
}

.ai-chatbot-avatar.user {
    background: #64748b;
    color: white;
}

.ai-chatbot-avatar svg {
    width: 16px;
    height: 16px;
}

.ai-chatbot-message-content {
    max-width: calc(100% - 50px);
    display: flex;
    flex-direction: column;
    gap: 4px;
}

/* Message Bubbles */
.ai-chatbot-message {
    padding: 12px 16px;
    border-radius: 18px;
    position: relative;
    word-wrap: break-word;
    overflow-wrap: break-word;
}

.ai-chatbot-message.user {
    background: var(--ai-chatbot-user-msg-bg);
    color: var(--ai-chatbot-user-msg-color);
    border-bottom-right-radius: 6px;
}

.ai-chatbot-message.bot {
    background: var(--ai-chatbot-bot-msg-bg);
    color: var(--ai-chatbot-bot-msg-color);
    border-bottom-left-radius: 6px;
}

.ai-chatbot-message-time {
    font-size: 11px;
    color: #94a3b8;
    padding: 0 4px;
}

.ai-chatbot-message-wrapper.user .ai-chatbot-message-time {
    text-align: right;
}

/* Links in chat messages */
.ai-chatbot-message a {
    text-decoration: underline;
    text-underline-offset: 2px;
    transition: opacity 0.2s ease;
}

.ai-chatbot-message.user a {
    color: var(--ai-chatbot-text);
}

.ai-chatbot-message.bot a {
    color: var(--ai-chatbot-primary);
    font-weight: 500;
}

.ai-chatbot-message a:hover {
    opacity: 0.8;
}

/* Page reference styling */
.ai-chatbot-page-ref {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    font-weight: 500;
    background: rgba(99, 102, 241, 0.1);
    padding: 2px 8px;
    border-radius: 4px;
    cursor: pointer;
    transition: var(--ai-chatbot-transition);
}

.ai-chatbot-page-ref:hover {
    background: rgba(99, 102, 241, 0.2);
}

/* Code blocks */
.ai-chatbot-message code {
    background: rgba(0, 0, 0, 0.08);
    padding: 2px 6px;
    border-radius: 4px;
    font-family: 'SF Mono', Monaco, 'Courier New', monospace;
    font-size: 13px;
}

.ai-chatbot-message pre {
    background: #1e293b;
    color: #e2e8f0;
    padding: 12px;
    border-radius: 8px;
    overflow-x: auto;
    margin: 8px 0;
}

.ai-chatbot-message pre code {
    background: none;
    padding: 0;
    color: inherit;
}

/* Lists */
.ai-chatbot-message ul,
.ai-chatbot-message ol {
    margin: 8px 0;
    padding-left: 20px;
}

.ai-chatbot-message li {
    margin-bottom: 4px;
}

/* Scroll indicator */
#ai-chatbot-scroll-indicator {
    position: absolute;
    bottom: 80px;
    left: 50%;
    transform: translateX(-50%) translateY(20px);
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: var(--ai-chatbot-bg);
    box-shadow: var(--ai-chatbot-shadow);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: var(--ai-chatbot-transition);
    z-index: 10;
    border: 1px solid var(--ai-chatbot-border);
}

#ai-chatbot-scroll-indicator.visible {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
}

#ai-chatbot-scroll-indicator:hover {
    background: var(--ai-chatbot-surface);
}

.ai-chatbot-scroll-arrow {
    width: 10px;
    height: 10px;
    border-right: 2px solid var(--ai-chatbot-primary);
    border-bottom: 2px solid var(--ai-chatbot-primary);
    transform: rotate(45deg) translateY(-2px);
}

/* Loading indicator */
.ai-chatbot-loading {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 16px;
    background: var(--ai-chatbot-bot-msg-bg);
    border-radius: 18px;
    border-bottom-left-radius: 6px;
    width: fit-content;
}

.ai-chatbot-loading-dot {
    width: 8px;
    height: 8px;
    background: #94a3b8;
    border-radius: 50%;
    animation: ai-chatbot-loading-bounce 1.4s infinite ease-in-out both;
}

.ai-chatbot-loading-dot:nth-child(1) { animation-delay: -0.32s; }
.ai-chatbot-loading-dot:nth-child(2) { animation-delay: -0.16s; }

@keyframes ai-chatbot-loading-bounce {
    0%, 80%, 100% { transform: scale(0.6); opacity: 0.5; }
    40% { transform: scale(1); opacity: 1; }
}

/* Suggested Questions */
#ai-chatbot-suggestions {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    padding: 12px 16px;
    background: var(--ai-chatbot-surface);
    border-top: 1px solid var(--ai-chatbot-border);
}

.ai-chatbot-suggestion {
    background: var(--ai-chatbot-bg);
    border: 1px solid var(--ai-chatbot-border);
    border-radius: 20px;
    padding: 8px 14px;
    font-size: 13px;
    color: var(--ai-chatbot-bot-msg-color);
    cursor: pointer;
    transition: var(--ai-chatbot-transition);
    white-space: nowrap;
}

.ai-chatbot-suggestion:hover {
    border-color: var(--ai-chatbot-primary);
    color: var(--ai-chatbot-primary);
    background: rgba(99, 102, 241, 0.05);
}

/* Form */
#ai-chatbot-form {
    display: flex;
    padding: 12px 16px;
    gap: 10px;
    border-top: 1px solid var(--ai-chatbot-border);
    background: var(--ai-chatbot-bg);
}

#ai-chatbot-input {
    flex: 1;
    border: 1px solid var(--ai-chatbot-border);
    border-radius: 24px;
    padding: 12px 18px;
    font-size: 14px;
    outline: none;
    transition: var(--ai-chatbot-transition);
    background: var(--ai-chatbot-surface);
    color: var(--ai-chatbot-bot-msg-color);
}

#ai-chatbot-input::placeholder {
    color: #94a3b8;
}

#ai-chatbot-input:focus {
    border-color: var(--ai-chatbot-primary);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
    background: var(--ai-chatbot-bg);
}

#ai-chatbot-submit {
    background: linear-gradient(135deg, var(--ai-chatbot-primary), var(--ai-chatbot-secondary));
    color: var(--ai-chatbot-text);
    border: none;
    border-radius: 50%;
    width: 44px;
    height: 44px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--ai-chatbot-transition);
    flex-shrink: 0;
}

#ai-chatbot-submit:hover:not(:disabled) {
    transform: scale(1.05);
    box-shadow: var(--ai-chatbot-shadow);
}

#ai-chatbot-submit:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

#ai-chatbot-submit svg {
    width: 20px;
    height: 20px;
    transition: transform 0.2s ease;
}

#ai-chatbot-submit:hover:not(:disabled) svg {
    transform: translateX(2px);
}

/* Footer */
#ai-chatbot-footer {
    padding: 8px 16px;
    border-top: 1px solid var(--ai-chatbot-border);
    font-size: 11px;
    color: #94a3b8;
    text-align: center;
    background: var(--ai-chatbot-bg);
}

#ai-chatbot-footer p {
    margin: 0;
}

/* Typing animation for bot messages */
.ai-chatbot-typing-cursor {
    display: inline-block;
    width: 2px;
    height: 1em;
    background: var(--ai-chatbot-primary);
    animation: ai-chatbot-cursor-blink 0.7s infinite;
    margin-left: 2px;
    vertical-align: text-bottom;
}

@keyframes ai-chatbot-cursor-blink {
    0%, 100% { opacity: 1; }
    50% { opacity: 0; }
}

/* Responsive Styles */
@media (max-width: 480px) {
    #ai-chatbot-interface {
        width: calc(100% - 32px);
        height: calc(100vh - 140px);
        max-height: none;
        bottom: 96px !important;
        left: 16px !important;
        right: 16px !important;
        border-radius: 20px;
    }
    
    #ai-chatbot-toggle {
        width: 56px;
        height: 56px;
        bottom: 20px !important;
        right: 20px !important;
    }
    
    #ai-chatbot-toggle.bottom-left {
        left: 20px !important;
        right: auto !important;
    }
    
    .ai-chatbot-suggestion {
        flex: 1 0 calc(50% - 4px);
        text-align: center;
    }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
    #ai-chatbot-toggle,
    #ai-chatbot-interface,
    .ai-chatbot-message-wrapper,
    .ai-chatbot-loading-dot {
        animation: none;
        transition: opacity 0.2s ease;
    }
}

/* Print styles - hide chatbot */
@media print {
    #ai-chatbot-container {
        display: none !important;
    }
}