#ai-chat-toggle {
    position: fixed;
    bottom: 25px;
    right: 25px;
    background: linear-gradient(135deg, var(--ai-accent) 0%, var(--ai-accent-2) 100%);
    color: white;
    border-radius: 50%;
    width: 70px;
    height: 70px;
    border: none;
    cursor: pointer;
    font-size: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    box-shadow: 0 8px 24px var(--ai-accent-shadow);
    transition: all 0.3s ease;
    transform: scale(1);
    padding:10px;
}

#ai-chat-toggle:hover {
    transform: scale(1.1);
    box-shadow: 0 12px 32px var(--ai-accent-shadow);
}

#ai-chat-toggle:active {
    transform: scale(0.95);
}

/* Small badge shown when chat is hidden */
#ai-chat-badge {
    position: fixed;
    bottom: 100px;
    right: 25px;
    background: rgba(var(--ai-accent-rgb), 0.96);
    color: white;
    border: none;
    padding: 8px 12px;
    border-radius: 999px;
    box-shadow: 0 8px 24px var(--ai-accent-shadow);
    font-size: 13px;
    cursor: pointer;
    z-index: 9998;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: opacity 0.5s ease, transform 0.5s ease;
    opacity: 0;
    pointer-events: none;
}

#ai-chat-badge.visible {
    opacity: 1;
    pointer-events: auto;
    animation: badgePulse 0.5s ease-out;
}

#ai-chat-badge:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 32px var(--ai-accent-shadow);
}

#ai-chat-badge:focus {
    outline: none;
    box-shadow: 0 0 0 4px var(--ai-accent-focus);
}

@keyframes badgePulse {
    0% {
        opacity: 0;
        transform: scale(0.8) translateY(10px);
    }
    100% {
        opacity: 1;
        transform: scale(1) translateY(0);
    }
}

#ai-chat-container {
    position: fixed;
    bottom: 90px;
    right: 25px;
    width: 380px;
    max-height: 600px;
    background: #fff;
    border-radius: 16px;
    box-shadow: 0 20px 60px rgba(0,0,0,0.15);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    z-index: 9999;
    display: none;
    animation: slideUp 0.3s ease-out;
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

#ai-chat-container.dark {
    background: #1f2937;
    color: #f3f4f6;
}

#ai-chat-header {
    padding: 16px;
    background: linear-gradient(135deg, var(--ai-accent) 0%, var(--ai-accent-2) 100%);
    color: white;
    font-weight: 600;
    cursor: grab;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 15px;
    letter-spacing: 0.3px;
}

#ai-chat-header.dark {
    background: #111827;
    color: #f3f4f6;
}

#ai-chat-body {
    flex: 1;
    padding: 16px;
    overflow-y: auto;
    background: #f8fafb;
    scrollbar-width: thin;
    scrollbar-color: #cbd5e1 transparent;
    min-height: 300px;
}

#ai-chat-body::-webkit-scrollbar {
    width: 6px;
}

#ai-chat-body::-webkit-scrollbar-track {
    background: transparent;
}

#ai-chat-body::-webkit-scrollbar-thumb {
    background: #cbd5e1;
    border-radius: 3px;
}

#ai-chat-body::-webkit-scrollbar-thumb:hover {
    background: #94a3b8;
}

#ai-chat-body.dark {
    background: #1f2937;
    color: #f3f4f6;
}

.ai-msg {
    max-width: 85%;
    padding: 12px 16px;
    border-radius: 14px;
    margin: 10px 0;
    word-wrap: break-word;
    line-height: 1.5;
    font-size: 14px;
    animation: fadeIn 0.3s ease-in;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.ai-msg.user {
    background: linear-gradient(135deg, var(--ai-accent) 0%, var(--ai-accent-2) 100%);
    color: white;
    margin-left: auto;
    border-bottom-right-radius: 4px;
    box-shadow: 0 2px 8px var(--ai-accent-shadow-weak);
}

.ai-msg.bot {
    background: #e8eef7;
    color: #1f2937;
    margin-right: auto;
    border-bottom-left-radius: 4px;
    box-shadow: 0 1px 4px rgba(0, 0, 0, 0.08);
}

.ai-msg strong {
    font-weight: 600;
    color: inherit;
}

.ai-msg.user strong {
    color: #ffffff;
}

.ai-msg.bot.dark {
    background: #374151;
    color: #f3f4f6;
}

#ai-chat-footer {
    display: flex;
    gap: 8px;
    padding: 12px 16px;
    border-top: 1px solid #e2e8f0;
    background: #fff;
}

#ai-chat-footer.dark {
    background: #111827;
    border-top: 1px solid #374151;
}

#ai-chat-footer input {
    flex: 1;
    padding: 11px 14px;
    border-radius: 8px;
    border: 1px solid #e2e8f0;
    background: #f8fafb;
    font-size: 14px;
    transition: all 0.2s ease;
}

#ai-chat-footer input:focus {
    outline: none;
    border-color: var(--ai-accent);
    background: #fff;
    box-shadow: 0 0 0 3px var(--ai-accent-focus);
}

#ai-chat-footer input.dark {
    border: 1px solid #374151;
    background: #1f2937;
    color: #f3f4f6;
}

#ai-chat-footer button {
    padding: 11px 16px;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    background: linear-gradient(135deg, var(--ai-accent) 0%, var(--ai-accent-2) 100%);
    color: white;
    font-weight: 500;
    font-size: 13px;
    transition: all 0.2s ease;
    min-width: 60px;
}

#ai-chat-footer button:hover {
    box-shadow: 0 4px 12px var(--ai-accent-shadow);
    transform: translateY(-2px);
}

#ai-chat-footer button:active {
    transform: translateY(0);
}

#ai-chat-footer button.dark {
    background: #2563eb;
}

/* Mode toggle (moon) button in header */
#ai-mode-toggle {
    background: transparent;
    border: none;
    color: inherit;
    font-size: 16px;
    padding: 6px;
    border-radius: 8px;
    cursor: pointer;
    transition: background 0.15s ease, transform 0.08s ease;
}

#ai-mode-toggle:hover {
    background: rgba(var(--ai-accent-rgb), 0.08);
    transform: translateY(-1px);
}

#ai-mode-toggle:active {
    transform: translateY(0);
}

#ai-mode-toggle:focus {
    outline: none;
    box-shadow: 0 0 0 3px var(--ai-accent-focus);
}

/* Dark header hover fallback */
#ai-chat-header.dark #ai-mode-toggle:hover {
    background: rgba(255,255,255,0.06);
}

/* Notification popup for new messages when chat is hidden */
#ai-chat-notification {
    position: fixed;
    bottom: 100px;
    right: 25px;
    background: rgba(var(--ai-accent-rgb), 0.98);
    color: white;
    padding: 12px 16px;
    border-radius: 12px;
    box-shadow: 0 10px 30px var(--ai-accent-shadow);
    z-index: 9998;
    max-width: 320px;
    font-size: 14px;
    cursor: pointer;
    transition: all 0.3s ease;
    animation: slideInUp 0.3s ease-out;
}

#ai-chat-notification:hover {
    transform: translateY(-3px);
    box-shadow: 0 14px 40px var(--ai-accent-shadow);
}

#ai-chat-notification strong {
    display: block;
    margin-bottom: 4px;
    font-weight: 600;
}

#ai-chat-notification p {
    margin: 0;
    opacity: 0.95;
    line-height: 1.4;
}

@keyframes slideInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Typing indicator dots animation */
.typing-dots {
    display: inline-flex;
    gap: 4px;
    align-items: center;
    margin-left: 4px;
}

.typing-dots span {
    display: inline-block;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: currentColor;
    opacity: 0.4;
    animation: typing 1.4s infinite;
}

.typing-dots span:nth-child(2) {
    animation-delay: 0.2s;
}

.typing-dots span:nth-child(3) {
    animation-delay: 0.4s;
}

@keyframes typing {
    0%, 60%, 100% {
        opacity: 0.4;
        transform: translateY(0);
    }
    30% {
        opacity: 1;
        transform: translateY(-8px);
    }
}