/**
 * RX4M Chatbot Widget - Modern Sleek Design
 * Inspired by Discord/Slack/Apple Messages
 */

/* Import Inter font */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600&display=swap');

:root {
    --chatbot-primary-color: #2563eb;
    --chatbot-bg-color: #f8fafc;
    --chatbot-text-color: #1e293b;
    --chatbot-text-secondary: #64748b;
    --chatbot-user-msg-bg: #2563eb;
    --chatbot-bot-msg-bg: #ffffff;
    --chatbot-border-color: #e2e8f0;
    --chatbot-shadow-sm: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
    --chatbot-shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --chatbot-shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
}

/* Global reset for widget */
.rx4m-chatbot * {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

/* Container */
.rx4m-chatbot {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    position: fixed;
    z-index: 999999;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.chatbot-bottom-right {
    bottom: 24px;
    right: 24px;
}

.chatbot-bottom-left {
    bottom: 24px;
    left: 24px;
}

/* Chat Toggle Button */
.chat-toggle {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background-color: #1e293b;
    border: none;
    cursor: pointer;
    box-shadow: var(--chatbot-shadow-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
}

/* First visit bounce animation */
.chat-toggle.first-visit {
    animation: bounce 2s ease-in-out infinite;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateY(0);
    }
    40% {
        transform: translateY(-12px);
    }
    60% {
        transform: translateY(-6px);
    }
}

.chat-toggle:hover {
    transform: scale(1.05);
    box-shadow: 0 12px 20px -3px rgba(0, 0, 0, 0.4), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
}

.chat-toggle:active {
    transform: scale(0.98);
}

.chat-toggle svg {
    width: 24px;
    height: 24px;
    filter: drop-shadow(0 1px 2px rgba(0, 0, 0, 0.1));
}

.notification-badge {
    position: absolute;
    top: -2px;
    right: -2px;
    background: linear-gradient(135deg, #ef4444 0%, #dc2626 100%);
    color: white;
    border-radius: 50%;
    width: 20px;
    height: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 11px;
    font-weight: 600;
    border: 2px solid white;
    box-shadow: var(--chatbot-shadow-sm);
}

/* Chat Window */
.chat-window {
    width: 380px;
    height: 600px;
    background-color: var(--chatbot-bg-color);
    border-radius: 16px;
    box-shadow: var(--chatbot-shadow-lg);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    border: 1px solid var(--chatbot-border-color);
    animation: slideUpFade 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

@keyframes slideUpFade {
    0% {
        opacity: 0;
        transform: translateY(12px) scale(0.96);
    }
    100% {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

@media (max-width: 480px) {
    .chat-window {
        width: calc(100vw - 32px);
        height: calc(100vh - 80px);
        max-height: 640px;
    }
}

/* Header */
.chat-header {
    background-color: white;
    color: var(--chatbot-text-color);
    padding: 16px 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--chatbot-border-color);
}

.chat-header-content {
    display: flex;
    align-items: center;
    gap: 12px;
}

.chat-header-icon {
    flex-shrink: 0;
}

.chat-header-text {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.chat-header h3 {
    margin: 0;
    font-size: 16px;
    font-weight: 600;
    letter-spacing: -0.01em;
    line-height: 1.2;
}

.chat-header-subtitle {
    font-size: 13px;
    color: var(--chatbot-text-secondary);
    font-weight: 400;
}

.close-button {
    background: transparent;
    border: none;
    color: var(--chatbot-text-secondary);
    font-size: 24px;
    cursor: pointer;
    padding: 4px;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 8px;
    transition: all 0.15s ease;
}

.close-button:hover {
    background-color: var(--chatbot-bg-color);
    color: var(--chatbot-text-color);
}

.close-button:active {
    transform: scale(0.95);
}

/* Messages Container */
.chat-messages {
    flex: 1;
    overflow-y: auto;
    padding: 24px 20px 20px 20px;
    display: flex;
    flex-direction: column;
    gap: 12px;
    background-color: var(--chatbot-bg-color);
    scroll-behavior: smooth;
}

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

.chat-messages::-webkit-scrollbar-track {
    background: transparent;
}

.chat-messages::-webkit-scrollbar-thumb {
    background: rgba(148, 163, 184, 0.3);
    border-radius: 10px;
    transition: background 0.2s ease;
}

.chat-messages::-webkit-scrollbar-thumb:hover {
    background: rgba(148, 163, 184, 0.5);
}

/* Messages */
.message {
    display: flex;
    align-items: flex-start;
    gap: 8px;
    animation: messageSlideIn 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.bot-message {
    justify-content: flex-start;
    padding-left: 0;
}

.bot-icon {
    width: 24px;
    height: 24px;
    flex-shrink: 0;
    margin-top: 2px;
    margin-left: 0;
}

.bot-icon svg {
    display: block;
    width: 100%;
    height: 100%;
}

@keyframes messageSlideIn {
    0% {
        opacity: 0;
        transform: translateY(8px);
    }
    100% {
        opacity: 1;
        transform: translateY(0);
    }
}

.message-content {
    max-width: 80%;
    padding: 10px 14px;
    word-wrap: break-word;
    line-height: 1.5;
    font-size: 14px;
    letter-spacing: -0.01em;
    box-shadow: var(--chatbot-shadow-sm);
    transition: all 0.15s ease;
}

/* User messages */
.user-message {
    justify-content: flex-end;
}

.user-message .message-content {
    background: var(--chatbot-user-msg-bg);
    color: white;
    border-radius: 18px 18px 4px 18px;
    font-weight: 500;
}

/* Bot messages */
.bot-message .message-content {
    background: var(--chatbot-bot-msg-bg);
    color: var(--chatbot-text-color);
    border-radius: 4px 18px 18px 18px;
    border: 1px solid var(--chatbot-border-color);
}

/* Typing Indicator */
.typing-indicator {
    display: flex;
    gap: 4px;
    padding: 10px 14px;
    align-items: center;
}

.typing-indicator span {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: var(--chatbot-text-secondary);
    animation: typingBounce 1.4s ease-in-out infinite;
    opacity: 0.6;
}

.typing-indicator span:nth-child(1) {
    animation-delay: 0s;
}

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

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

@keyframes typingBounce {
    0%, 60%, 100% {
        transform: translateY(0);
        opacity: 0.6;
    }
    30% {
        transform: translateY(-8px);
        opacity: 1;
    }
}

/* Input Container */
.chat-input-container {
    display: flex;
    gap: 10px;
    padding: 16px 20px;
    background-color: white;
    border-top: 1px solid var(--chatbot-border-color);
}

/* Input field */
.chat-input {
    flex: 1;
    padding: 10px 14px;
    border: 1.5px solid var(--chatbot-border-color);
    border-radius: 12px;
    font-size: 14px;
    font-family: 'Inter', sans-serif;
    outline: none;
    transition: all 0.2s ease;
    background: var(--chatbot-bg-color);
    color: var(--chatbot-text-color);
}

.chat-input::placeholder {
    color: var(--chatbot-text-secondary);
}

.chat-input:focus {
    border-color: var(--chatbot-primary-color);
    background: white;
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

/* Send button */
.send-button {
    width: 40px;
    height: 40px;
    border-radius: 10px;
    background: var(--chatbot-primary-color);
    border: none;
    color: white;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
    box-shadow: var(--chatbot-shadow-sm);
}

.send-button:hover:not(:disabled) {
    background: #1d4ed8;
    transform: translateY(-1px);
    box-shadow: var(--chatbot-shadow-md);
}

.send-button:active:not(:disabled) {
    transform: translateY(0);
    box-shadow: var(--chatbot-shadow-sm);
}

.send-button:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.send-button svg {
    width: 18px;
    height: 18px;
}

/* Footer */
.chat-footer {
    padding: 10px 20px;
    text-align: center;
    font-size: 11px;
    color: var(--chatbot-text-secondary);
    background-color: white;
    border-top: 1px solid var(--chatbot-border-color);
    font-weight: 500;
}

.chat-footer span {
    opacity: 0.8;
    transition: opacity 0.2s ease;
}

.chat-footer span:hover {
    opacity: 1;
}

/* Accessibility */
*:focus-visible {
    outline: 2px solid var(--chatbot-primary-color);
    outline-offset: 2px;
}

/* Hover effects */
.message-content:hover {
    transform: translateY(-1px);
    box-shadow: 0 2px 8px 0 rgba(0, 0, 0, 0.12), 0 1px 3px 0 rgba(0, 0, 0, 0.08);
}

/* Smooth transitions */
* {
    transition-property: background-color, border-color, color, fill, stroke, opacity, box-shadow, transform;
    transition-timing-function: cubic-bezier(0.4, 0, 0.2, 1);
}

/* First visit tooltip */
.chat-tooltip {
    position: absolute;
    bottom: 70px;
    right: 0;
    background: white;
    color: var(--chatbot-text-color);
    padding: 12px 16px;
    border-radius: 12px;
    font-size: 14px;
    font-weight: 500;
    white-space: nowrap;
    box-shadow: var(--chatbot-shadow-lg);
    border: 1px solid var(--chatbot-border-color);
    animation: tooltipFadeIn 0.3s ease-out;
    pointer-events: none;
}

.chat-tooltip::after {
    content: '';
    position: absolute;
    top: 100%;
    right: 20px;
    border: 8px solid transparent;
    border-top-color: white;
    filter: drop-shadow(0 2px 2px rgba(0, 0, 0, 0.05));
}

@keyframes tooltipFadeIn {
    0% {
        opacity: 0;
        transform: translateY(-4px);
    }
    100% {
        opacity: 1;
        transform: translateY(0);
    }
}