* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

/* Chat Toggle Button */
#chatbot-toggle {
    position: fixed;
    bottom: 20px;
    right: 20px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border: none;
    border-radius: 50%;
    width: 64px;
    height: 64px;
    cursor: pointer;
    z-index: 9998;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 8px 32px rgba(102, 126, 234, 0.4);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    animation: float 3s ease-in-out infinite;
    overflow: hidden;
    padding: 8px;
}

#chatbot-toggle:hover {
    transform: scale(1.1);
    box-shadow: 0 12px 40px rgba(102, 126, 234, 0.6);
}

#chatbot-toggle::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: linear-gradient(45deg, transparent, rgba(255,255,255,0.1), transparent);
    transform: rotate(45deg);
    animation: shimmer 3s infinite;
}

@keyframes shimmer {
    0% { transform: translateX(-100%) translateY(-100%) rotate(45deg); }
    50% { transform: translateX(100%) translateY(100%) rotate(45deg); }
    100% { transform: translateX(-100%) translateY(-100%) rotate(45deg); }
}

.chat-toggle-icon {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    object-fit: cover;
    animation: bounce 2s infinite;
    position: relative;
    z-index: 1;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% { transform: translateY(0); }
    40% { transform: translateY(-4px); }
    60% { transform: translateY(-2px); }
}

@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-6px); }
}

/* Chat Container */
#chatbot-box {
    position: fixed;
    bottom: 100px;
    right: 20px;
    width: 380px;
    height: 550px;
    max-width: 90vw;
    max-height: 80vh;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    border-radius: 24px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.1), 0 0 0 1px rgba(255, 255, 255, 0.2);
    display: none;
    flex-direction: column;
    overflow: hidden;
    z-index: 9999;
    transform: translateY(20px) scale(0.95);
    opacity: 0;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

#chatbot-box.show {
    transform: translateY(0) scale(1);
    opacity: 1;
}

@media (max-width: 500px) {
    #chatbot-box {
        width: 92vw;
        height: 75vh;
        right: 4vw;
        bottom: 90px;
    }
}

/* Chat Header */
.chat-header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 20px 24px;
    display: flex;
    align-items: center;
    gap: 12px;
    position: relative;
    overflow: hidden;
}

.chat-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grain" width="100" height="100" patternUnits="userSpaceOnUse"><circle cx="50" cy="50" r="1" fill="white" opacity="0.1"/></pattern></defs><rect width="100" height="100" fill="url(%23grain)"/></svg>');
    opacity: 0.1;
}

.chat-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.2);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    z-index: 1;
    padding: 2px;
}

.ai-avatar-icon {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    object-fit: cover;
}

.chat-info {
    flex: 1;
    position: relative;
    z-index: 1;
}

.chat-title {
    font-weight: 600;
    font-size: 18px;
    margin-bottom: 4px;
}

.chat-status {
    font-size: 12px;
    opacity: 0.9;
    display: flex;
    align-items: center;
    gap: 6px;
}

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

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

.close-btn {
    background: none;
    border: none;
    color: white;
    font-size: 24px;
    cursor: pointer;
    padding: 4px;
    border-radius: 50%;
    transition: background 0.2s;
    position: relative;
    z-index: 1;
}

.close-btn:hover {
    background: rgba(255, 255, 255, 0.1);
}

/* Pre-Chat Form */
#pre-chat-form {
    display: none;
    flex-direction: column;
    gap: 20px;
    padding: 32px 24px;
    flex: 1;
    background: linear-gradient(135deg, #f8fafc 0%, #e2e8f0 100%);
    justify-content: center;
    align-items: center;
}

.form-title {
    color: #1e293b;
    font-size: 24px;
    font-weight: 700;
    text-align: center;
    margin-bottom: 8px;
}

.form-subtitle {
    color: #64748b;
    font-size: 14px;
    text-align: center;
    margin-bottom: 16px;
}

.input-group {
    width: 100%;
    position: relative;
}

#pre-chat-form input {
    width: 100%;
    padding: 16px 20px;
    border: 2px solid #e2e8f0;
    border-radius: 16px;
    font-size: 14px;
    color: #1e293b;
    background: white;
    transition: all 0.3s ease;
    outline: none;
}

#pre-chat-form input:focus {
    border-color: #667eea;
    box-shadow: 0 0 0 4px rgba(102, 126, 234, 0.1);
}

#pre-chat-form input::placeholder {
    color: #94a3b8;
}

#start-chat {
    width: 100%;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    padding: 16px 24px;
    border-radius: 16px;
    font-weight: 600;
    font-size: 14px;
    cursor: pointer;
    transition: all 0.3s ease;
    margin-top: 8px;
}

#start-chat:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(102, 126, 234, 0.3);
}

/* Chat Messages Area */
.chat-messages {
    flex: 1;
    padding: 20px;
    overflow-y: auto;
    background: linear-gradient(135deg, #f8fafc 0%, #ffffff 100%);
    display: none;
}

.message {
    margin-bottom: 16px;
    display: flex;
    gap: 12px;
    animation: messageSlide 0.3s ease-out;
}

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

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

.message-avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    font-weight: 600;
    flex-shrink: 0;
    padding: 2px;
}

.message.bot .message-avatar {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

.message.user .message-avatar {
    background: linear-gradient(135deg, #3b82f6 0%, #1d4ed8 100%);
    color: white;
}

.bot-avatar-icon {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    object-fit: cover;
}

.user-avatar-icon {
    width: 18px;
    height: 18px;
    fill: white;
}

.message-content {
    max-width: 75%;
    padding: 12px 16px;
    border-radius: 16px;
    font-size: 14px;
    line-height: 1.5;
    position: relative;
}

.message.bot .message-content {
    background: white;
    color: #1e293b;
    border: 1px solid #e2e8f0;
    border-bottom-left-radius: 4px;
}

.message.user .message-content {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border-bottom-right-radius: 4px;
}

.message-time {
    font-size: 11px;
    opacity: 0.6;
    margin-top: 4px;
}

/* Typing Indicator */
.typing-indicator {
    display: none;
    align-items: center;
    gap: 12px;
    margin-bottom: 16px;
}

.typing-avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2px;
}

.typing-avatar-icon {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    object-fit: cover;
}

.typing-dots {
    display: flex;
    gap: 4px;
    padding: 12px 16px;
    background: white;
    border: 1px solid #e2e8f0;
    border-radius: 16px;
    border-bottom-left-radius: 4px;
}

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

.typing-dot:nth-child(1) { animation-delay: 0ms; }
.typing-dot:nth-child(2) { animation-delay: 200ms; }
.typing-dot:nth-child(3) { animation-delay: 400ms; }

@keyframes typing {
    0%, 60%, 100% { transform: translateY(0); opacity: 0.4; }
    30% { transform: translateY(-10px); opacity: 1; }
}

/* Chat Input */
.chat-input-container {
    padding: 16px 20px;
    background: linear-gradient(135deg, #f8fafc 0%, #ffffff 100%);
    border-top: 1px solid #e2e8f0;
    display: none;
}

.chat-input-wrapper {
    position: relative;
    display: flex;
    align-items: flex-end;
    background: white;
    border-radius: 25px;
    border: 2px solid #e2e8f0;
    transition: all 0.3s ease;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
    min-height: 50px;
}

.chat-input-wrapper:focus-within {
    border-color: #667eea;
    box-shadow: 0 0 0 4px rgba(102, 126, 234, 0.1), 0 4px 12px rgba(0, 0, 0, 0.1);
}

#chat-input {
    flex: 1;
    padding: 14px 20px;
    padding-right: 60px;
    border: none;
    border-radius: 25px;
    font-size: 14px;
    resize: none;
    outline: none;
    max-height: 120px;
    min-height: 22px;
    line-height: 1.4;
    background: transparent;
    color: #1e293b;
    font-family: inherit;
    overflow-y: hidden;
    word-wrap: break-word;
    white-space: pre-wrap;
}

#chat-input::placeholder {
    color: #94a3b8;
    font-weight: 400;
}

#send-btn {
    position: absolute;
    right: 8px;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    cursor: pointer;
    display: flex !important;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    flex-shrink: 0;
    z-index: 100;
    padding: 8px;
}

#send-btn:hover:not(:disabled) {
    transform: translateY(-50%) scale(1.1);
}

#send-btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

.send-icon {
    width: 24px;
    height: 24px;
    fill: none;
    stroke: #667eea;
    stroke-width: 2;
    stroke-linecap: round;
    stroke-linejoin: round;
    transition: all 0.3s ease;
}

#send-btn:hover:not(:disabled) .send-icon {
    stroke: #764ba2;
}

#send-btn:disabled .send-icon {
    stroke: #94a3b8;
}

/* WhatsApp Link */
#whatsapp-link {
    background: linear-gradient(135deg, #25D366 0%, #128C7E 100%);
    color: white;
    padding: 16px;
    text-align: center;
    font-weight: 600;
    font-size: 14px;
    text-decoration: none;
    display: none;
    transition: all 0.3s ease;
}

#whatsapp-link:hover {
    background: linear-gradient(135deg, #128C7E 0%, #25D366 100%);
}

/* Welcome Popup */
#chat-welcome-popup {
    position: fixed;
    bottom: 130px;
    right: 20px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 16px 24px;
    border-radius: 20px;
    font-size: 14px;
    font-weight: 600;
    box-shadow: 0 8px 32px rgba(102, 126, 234, 0.4);
    opacity: 0;
    pointer-events: none;
    transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 10000;
    max-width: 260px;
    transform: translateY(10px);
}

#chat-welcome-popup.show {
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0);
}

#chat-welcome-popup::before {
    content: '';
    position: absolute;
    bottom: -8px;
    right: 24px;
    width: 0;
    height: 0;
    border-left: 8px solid transparent;
    border-right: 8px solid transparent;
    border-top: 8px solid #667eea;
}

/* Scrollbar Styling */
.chat-messages::-webkit-scrollbar {
    width: 6px;
}

.chat-messages::-webkit-scrollbar-track {
    background: #f1f5f9;
    border-radius: 3px;
}

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

.chat-messages::-webkit-scrollbar-thumb:hover {
    background: #94a3b8;
}

/* Loading Animation */
@keyframes shimmer {
    0% { background-position: -200px 0; }
    100% { background-position: calc(200px + 100%) 0; }
}

.loading {
    background: linear-gradient(90deg, #f0f0f0 25%, #e0e0e0 50%, #f0f0f0 75%);
    background-size: 200px 100%;
    animation: shimmer 1.5s infinite;
}