/* UltraBot Chat Widget */

:root {
    --ub-primary: #4F46E5;
    --ub-primary-light: #818CF8;
    --ub-primary-dark: #3730A3;
    --ub-bg: #ffffff;
    --ub-bg-secondary: #F9FAFB;
    --ub-text: #111827;
    --ub-text-secondary: #6B7280;
    --ub-text-inverse: #ffffff;
    --ub-border: #E5E7EB;
    --ub-bubble-bot: #F3F4F6;
    --ub-bubble-bot-text: #111827;
    --ub-bubble-user: var(--ub-primary);
    --ub-bubble-user-text: #ffffff;
    --ub-radius: 16px;
    --ub-radius-sm: 8px;
    --ub-font: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --ub-shadow: 0 20px 60px rgba(0, 0, 0, 0.15);
    --ub-shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.1);
    --ub-widget-width: 380px;
    --ub-widget-height: 520px;
    --ub-launcher-size: 60px;
    --ub-z-index: 999999;
}

/* Dark mode */
@media (prefers-color-scheme: dark) {
    .ultrabot-widget[data-dark-mode="auto"] {
        --ub-bg: #1F2937;
        --ub-bg-secondary: #111827;
        --ub-text: #F9FAFB;
        --ub-text-secondary: #9CA3AF;
        --ub-border: #374151;
        --ub-bubble-bot: #374151;
        --ub-bubble-bot-text: #F9FAFB;
        --ub-shadow: 0 20px 60px rgba(0, 0, 0, 0.4);
    }
}

.ultrabot-widget[data-dark-mode="dark"] {
    --ub-bg: #1F2937;
    --ub-bg-secondary: #111827;
    --ub-text: #F9FAFB;
    --ub-text-secondary: #9CA3AF;
    --ub-border: #374151;
    --ub-bubble-bot: #374151;
    --ub-bubble-bot-text: #F9FAFB;
    --ub-shadow: 0 20px 60px rgba(0, 0, 0, 0.4);
}

/* Widget Container */
.ultrabot-widget {
    position: fixed;
    z-index: var(--ub-z-index);
    font-family: var(--ub-font);
    font-size: 14px;
    line-height: 1.5;
    color: var(--ub-text);
    box-sizing: border-box;
    -webkit-font-smoothing: antialiased;
}

.ultrabot-widget *,
.ultrabot-widget *::before,
.ultrabot-widget *::after {
    box-sizing: border-box;
}

.ultrabot-widget[data-position="bottom-right"] {
    bottom: 20px;
    right: 20px;
}

.ultrabot-widget[data-position="bottom-left"] {
    bottom: 20px;
    left: 20px;
}

/* Launcher Button */
.ultrabot-launcher {
    width: var(--ub-launcher-size);
    height: var(--ub-launcher-size);
    border-radius: 50%;
    background: var(--ub-primary);
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--ub-shadow-sm);
    transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1), box-shadow 0.3s;
    position: relative;
}

.ultrabot-launcher:hover {
    transform: scale(1.08);
    box-shadow: 0 8px 24px rgba(79, 70, 229, 0.35);
}

.ultrabot-launcher:active {
    transform: scale(0.95);
}

.ultrabot-launcher svg {
    width: 28px;
    height: 28px;
    fill: var(--ub-text-inverse);
    transition: transform 0.3s;
}

.ultrabot-launcher.open svg.icon-chat {
    display: none;
}

.ultrabot-launcher.open svg.icon-close {
    display: block;
}

.ultrabot-launcher svg.icon-close {
    display: none;
}

/* Unread badge */
.ultrabot-launcher .unread-badge {
    position: absolute;
    top: -4px;
    right: -4px;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: #EF4444;
    color: white;
    font-size: 11px;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 2px solid white;
    animation: ub-badge-pop 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}

@keyframes ub-badge-pop {
    from { transform: scale(0); }
    to { transform: scale(1); }
}

/* Chat Window */
.ultrabot-window {
    position: absolute;
    bottom: calc(var(--ub-launcher-size) + 16px);
    width: var(--ub-widget-width);
    height: var(--ub-widget-height);
    background: var(--ub-bg);
    border-radius: var(--ub-radius);
    box-shadow: var(--ub-shadow);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    opacity: 0;
    transform: translateY(20px) scale(0.95);
    pointer-events: none;
    transition: opacity 0.3s, transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.ultrabot-widget[data-position="bottom-right"] .ultrabot-window {
    right: 0;
}

.ultrabot-widget[data-position="bottom-left"] .ultrabot-window {
    left: 0;
}

.ultrabot-window.open {
    opacity: 1;
    transform: translateY(0) scale(1);
    pointer-events: all;
}

/* Header */
.ultrabot-header-bar {
    background: var(--ub-primary);
    color: var(--ub-text-inverse);
    padding: 16px 20px;
    display: flex;
    align-items: center;
    gap: 12px;
    flex-shrink: 0;
}

.ultrabot-avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.2);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.ultrabot-avatar svg {
    width: 20px;
    height: 20px;
    fill: white;
}

.ultrabot-avatar img {
    width: 100%;
    height: 100%;
    border-radius: 50%;
    object-fit: cover;
}

.ultrabot-header-info {
    flex: 1;
    min-width: 0;
}

.ultrabot-header-name {
    font-size: 15px;
    font-weight: 600;
    line-height: 1.3;
}

.ultrabot-header-status {
    font-size: 12px;
    opacity: 0.85;
    display: flex;
    align-items: center;
    gap: 4px;
}

.ultrabot-header-status .dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: #34D399;
    display: inline-block;
}

.ultrabot-header-actions {
    display: flex;
    gap: 4px;
}

.ultrabot-header-actions button {
    width: 32px;
    height: 32px;
    border: none;
    background: rgba(255, 255, 255, 0.15);
    border-radius: 8px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.2s;
}

.ultrabot-header-actions button:hover {
    background: rgba(255, 255, 255, 0.25);
}

.ultrabot-header-actions button svg {
    width: 16px;
    height: 16px;
    fill: white;
}

/* Messages Area */
.ultrabot-messages {
    flex: 1;
    overflow-y: auto;
    padding: 16px 20px;
    display: flex;
    flex-direction: column;
    gap: 12px;
    scroll-behavior: smooth;
}

.ultrabot-messages::-webkit-scrollbar {
    width: 4px;
}

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

.ultrabot-messages::-webkit-scrollbar-thumb {
    background: var(--ub-border);
    border-radius: 4px;
}

/* Message Bubble */
.ultrabot-message {
    display: flex;
    gap: 8px;
    max-width: 85%;
    animation: ub-msg-in 0.3s ease-out;
}

@keyframes ub-msg-in {
    from {
        opacity: 0;
        transform: translateY(8px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.ultrabot-message.bot {
    align-self: flex-start;
}

.ultrabot-message.user {
    align-self: flex-end;
    flex-direction: row-reverse;
}

.ultrabot-message .msg-avatar {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: var(--ub-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    margin-top: 2px;
}

.ultrabot-message .msg-avatar svg {
    width: 14px;
    height: 14px;
    fill: white;
}

.ultrabot-message.user .msg-avatar {
    display: none;
}

.ultrabot-message .msg-bubble {
    padding: 10px 14px;
    border-radius: 14px;
    word-wrap: break-word;
    overflow-wrap: break-word;
    position: relative;
}

.ultrabot-message.bot .msg-bubble {
    background: var(--ub-bubble-bot);
    color: var(--ub-bubble-bot-text);
    border-bottom-left-radius: 4px;
}

.ultrabot-message.user .msg-bubble {
    background: var(--ub-bubble-user);
    color: var(--ub-bubble-user-text);
    border-bottom-right-radius: 4px;
}

.ultrabot-message .msg-bubble p {
    margin: 0;
}

.ultrabot-message .msg-bubble p + p {
    margin-top: 8px;
}

.ultrabot-message .msg-bubble a {
    color: inherit;
    text-decoration: underline;
}

.ultrabot-message .msg-time {
    font-size: 11px;
    color: var(--ub-text-secondary);
    margin-top: 4px;
    padding: 0 4px;
}

.ultrabot-message.user .msg-time {
    text-align: right;
}

/* Typing Indicator */
.ultrabot-typing {
    display: flex;
    gap: 4px;
    padding: 12px 16px;
    align-items: center;
}

.ultrabot-typing .dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--ub-text-secondary);
    animation: ub-typing 1.4s infinite;
}

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

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

@keyframes ub-typing {
    0%, 80%, 100% {
        opacity: 0.3;
        transform: scale(0.8);
    }
    40% {
        opacity: 1;
        transform: scale(1);
    }
}

/* Input Area */
.ultrabot-input-area {
    padding: 12px 16px;
    border-top: 1px solid var(--ub-border);
    display: flex;
    align-items: flex-end;
    gap: 8px;
    background: var(--ub-bg);
}

.ultrabot-input-wrap {
    flex: 1;
    position: relative;
}

.ultrabot-input {
    width: 100%;
    border: 1px solid var(--ub-border);
    border-radius: var(--ub-radius-sm);
    padding: 10px 14px;
    font-size: 14px;
    font-family: var(--ub-font);
    color: var(--ub-text);
    background: var(--ub-bg-secondary);
    resize: none;
    max-height: 100px;
    line-height: 1.4;
    outline: none;
    transition: border-color 0.2s;
}

.ultrabot-input:focus {
    border-color: var(--ub-primary);
}

.ultrabot-input::placeholder {
    color: var(--ub-text-secondary);
}

.ultrabot-send-btn {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--ub-primary);
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    transition: background 0.2s, transform 0.1s;
}

.ultrabot-send-btn:hover {
    background: var(--ub-primary-dark);
}

.ultrabot-send-btn:active {
    transform: scale(0.9);
}

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

.ultrabot-send-btn svg {
    width: 18px;
    height: 18px;
    fill: white;
}

/* Input toolbar */
.ultrabot-input-toolbar {
    display: flex;
    gap: 4px;
    padding: 4px 0 0 0;
}

.ultrabot-input-toolbar button {
    width: 32px;
    height: 32px;
    border: none;
    background: transparent;
    border-radius: 6px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--ub-text-secondary);
    transition: background 0.2s, color 0.2s;
}

.ultrabot-input-toolbar button:hover {
    background: var(--ub-bg-secondary);
    color: var(--ub-text);
}

.ultrabot-input-toolbar button svg {
    width: 18px;
    height: 18px;
    fill: currentColor;
}

/* Quick Replies */
.ultrabot-quick-replies {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    padding: 8px 20px;
}

.ultrabot-quick-reply {
    padding: 6px 14px;
    border: 1px solid var(--ub-primary);
    color: var(--ub-primary);
    border-radius: 20px;
    font-size: 13px;
    font-weight: 500;
    background: transparent;
    cursor: pointer;
    transition: all 0.2s;
    font-family: var(--ub-font);
}

.ultrabot-quick-reply:hover {
    background: var(--ub-primary);
    color: var(--ub-text-inverse);
}

/* Powered By */
.ultrabot-powered {
    text-align: center;
    padding: 6px;
    font-size: 11px;
    color: var(--ub-text-secondary);
    border-top: 1px solid var(--ub-border);
}

.ultrabot-powered a {
    color: var(--ub-primary);
    text-decoration: none;
    font-weight: 500;
}

/* RTL Support */
.ultrabot-widget[dir="rtl"] .ultrabot-message.user {
    flex-direction: row;
}

.ultrabot-widget[dir="rtl"] .ultrabot-message.bot {
    flex-direction: row-reverse;
}

.ultrabot-widget[dir="rtl"] .ultrabot-message.bot .msg-bubble {
    border-bottom-left-radius: 14px;
    border-bottom-right-radius: 4px;
}

.ultrabot-widget[dir="rtl"] .ultrabot-message.user .msg-bubble {
    border-bottom-right-radius: 14px;
    border-bottom-left-radius: 4px;
}

/* Mobile Responsive */
@media (max-width: 480px) {
    .ultrabot-window {
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        width: 100%;
        height: 100%;
        border-radius: 0;
    }

    .ultrabot-widget[data-position="bottom-right"] .ultrabot-window,
    .ultrabot-widget[data-position="bottom-left"] .ultrabot-window {
        right: 0;
        left: 0;
    }

    /* Hide launcher when chat is open to prevent overlap with send button */
    .ultrabot-launcher.open {
        display: none;
    }

    /* Prevent iOS auto-zoom on input focus */
    .ultrabot-input {
        font-size: 16px;
    }
}

/* System Message */
.ultrabot-system-msg {
    text-align: center;
    font-size: 12px;
    color: var(--ub-text-secondary);
    padding: 8px 16px;
    background: var(--ub-bg-secondary);
    border-radius: 20px;
    align-self: center;
    max-width: 80%;
}

/* Loading */
.ultrabot-loading {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 40px;
}

.ultrabot-loading .spinner {
    width: 32px;
    height: 32px;
    border: 3px solid var(--ub-border);
    border-top-color: var(--ub-primary);
    border-radius: 50%;
    animation: ub-spin 0.6s linear infinite;
}

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