/* VIF AI Chatbot Styles v2.0 */

:root {
    --vif-primary-color: #5190d5;
    --vif-primary-dark: #3a6ea5;
    --vif-primary-light: #e8f2fc;
    --vif-text-color: #333;
    --vif-text-light: #666;
    --vif-bg-color: #fff;
    --vif-bg-light: #f8f9fa;
    --vif-border-color: #e0e0e0;
    --vif-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
    --vif-radius: 16px;
    --vif-radius-sm: 8px;
}

/* ============================================
   FLOATING WIDGET STYLES
   ============================================ */

.vif-floating-widget {
    position: fixed;
    bottom: 24px;
    right: 24px;
    z-index: 99999;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

.vif-floating-widget[data-position="left"] {
    right: auto;
    left: 24px;
}

/* Toggle Button */
.vif-chat-toggle {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--vif-primary-color) 0%, var(--vif-primary-dark) 100%);
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--vif-shadow);
    transition: all 0.3s ease;
    position: relative;
    color: white;
}

.vif-chat-toggle:hover {
    transform: scale(1.05);
    box-shadow: 0 6px 25px rgba(81, 144, 213, 0.4);
}

.vif-chat-toggle svg {
    width: 28px;
    height: 28px;
    transition: all 0.3s ease;
}

.vif-chat-toggle .vif-icon-close {
    display: none;
}

.vif-floating-widget.open .vif-chat-toggle .vif-icon-chat {
    display: none;
}

.vif-floating-widget.open .vif-chat-toggle .vif-icon-close {
    display: block;
}

.vif-chat-badge {
    position: absolute;
    top: -4px;
    right: -4px;
    background: #f44336;
    color: white;
    font-size: 12px;
    font-weight: bold;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Chat Window */
.vif-chat-window {
    position: absolute;
    bottom: 75px;
    right: 0;
    width: 380px;
    max-width: calc(100vw - 48px);
    height: 550px;
    max-height: calc(100vh - 150px);
    background: var(--vif-bg-color);
    border-radius: var(--vif-radius);
    box-shadow: var(--vif-shadow);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px) scale(0.95);
    transition: all 0.3s ease;
}

.vif-floating-widget[data-position="left"] .vif-chat-window {
    right: auto;
    left: 0;
}

.vif-floating-widget.open .vif-chat-window {
    opacity: 1;
    visibility: visible;
    transform: translateY(0) scale(1);
}

/* Chat Header */
.vif-chat-header {
    background: linear-gradient(135deg, var(--vif-primary-color) 0%, var(--vif-primary-dark) 100%);
    color: white;
    padding: 16px 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

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

.vif-chat-avatar {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.2);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.vif-chat-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.vif-avatar-icon {
    font-size: 24px;
}

.vif-status-dot {
    position: absolute;
    bottom: 2px;
    right: 2px;
    width: 10px;
    height: 10px;
    background: #4caf50;
    border: 2px solid white;
    border-radius: 50%;
}

.vif-chat-header-text h4 {
    margin: 0;
    font-size: 16px;
    font-weight: 600;
}

.vif-chat-header-text p {
    margin: 2px 0 0;
    font-size: 12px;
    opacity: 0.9;
}

.vif-chat-minimize {
    background: rgba(255, 255, 255, 0.15);
    border: none;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.2s;
    color: white;
}

.vif-chat-minimize:hover {
    background: rgba(255, 255, 255, 0.25);
}

.vif-chat-minimize svg {
    width: 18px;
    height: 18px;
}

/* Messages Container */
.vif-chat-messages {
    flex: 1;
    padding: 16px;
    overflow-y: auto;
    background: var(--vif-bg-light);
}

/* Individual Messages */
.vif-chat-message {
    display: flex;
    margin-bottom: 16px;
    animation: vifSlideIn 0.3s ease-out;
}

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

.vif-message-avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    flex-shrink: 0;
    margin-right: 10px;
}

.vif-bot-message .vif-message-avatar {
    background: linear-gradient(135deg, var(--vif-primary-color) 0%, var(--vif-primary-dark) 100%);
}

.vif-user-message .vif-message-avatar {
    background: #4CAF50;
    order: 2;
    margin-right: 0;
    margin-left: 10px;
}

.vif-message-content {
    flex: 1;
    background: white;
    padding: 12px 16px;
    border-radius: 12px;
    border-top-left-radius: 4px;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
    max-width: 85%;
    font-size: 14px;
    line-height: 1.5;
    color: var(--vif-text-color);
}

.vif-user-message .vif-message-content {
    background: var(--vif-primary-light);
    border-top-left-radius: 12px;
    border-top-right-radius: 4px;
}

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

.vif-message-content p {
    margin: 0 0 8px;
}

.vif-message-content p:last-child {
    margin-bottom: 0;
}

.vif-message-content ul,
.vif-message-content ol {
    margin: 8px 0;
    padding-left: 20px;
}

.vif-message-content li {
    margin: 4px 0;
}

.vif-message-content a {
    color: var(--vif-primary-color);
    text-decoration: none;
    word-break: break-all;
}

.vif-message-content a:hover {
    text-decoration: underline;
}

.vif-message-content strong {
    color: var(--vif-primary-dark);
}

.vif-message-content code {
    background: #f0f0f0;
    padding: 2px 6px;
    border-radius: 4px;
    font-family: monospace;
    font-size: 13px;
}

/* Error Message */
.vif-error-message .vif-message-content {
    background: #ffebee;
    border-left: 3px solid #f44336;
}

/* Quick Replies */
.vif-quick-replies {
    padding: 8px 16px;
    background: var(--vif-bg-light);
    border-top: 1px solid var(--vif-border-color);
}

.vif-quick-replies-inner {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.vif-quick-reply-btn {
    background: white;
    border: 1px solid var(--vif-primary-color);
    color: var(--vif-primary-color);
    padding: 8px 14px;
    border-radius: 20px;
    font-size: 13px;
    cursor: pointer;
    transition: all 0.2s;
    white-space: nowrap;
}

.vif-quick-reply-btn:hover {
    background: var(--vif-primary-color);
    color: white;
}

/* Input Area */
.vif-chat-input-area {
    padding: 12px 16px;
    background: white;
    border-top: 1px solid var(--vif-border-color);
}

.vif-chat-input-wrapper {
    display: flex;
    gap: 10px;
    align-items: center;
}

.vif-chat-input {
    flex: 1;
    padding: 12px 16px;
    border: 1px solid var(--vif-border-color);
    border-radius: 24px;
    font-size: 14px;
    outline: none;
    transition: border-color 0.2s;
}

.vif-chat-input:focus {
    border-color: var(--vif-primary-color);
}

.vif-chat-input::placeholder {
    color: #999;
}

.vif-chat-send {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: var(--vif-primary-color);
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s;
    color: white;
    flex-shrink: 0;
}

.vif-chat-send:hover:not(:disabled) {
    background: var(--vif-primary-dark);
    transform: scale(1.05);
}

.vif-chat-send:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.vif-chat-send svg {
    width: 20px;
    height: 20px;
}

/* Typing Indicator */
.vif-typing-indicator {
    display: none;
    padding: 8px 0;
}

.vif-typing-indicator span {
    width: 8px;
    height: 8px;
    margin: 0 2px;
    background: var(--vif-primary-color);
    border-radius: 50%;
    display: inline-block;
    animation: vifTyping 1.4s infinite;
}

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

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

@keyframes vifTyping {
    0%, 60%, 100% {
        transform: translateY(0);
        opacity: 0.5;
    }
    30% {
        transform: translateY(-8px);
        opacity: 1;
    }
}

/* Chat Footer */
.vif-chat-footer {
    padding: 8px 16px;
    text-align: center;
    font-size: 11px;
    color: #999;
    background: var(--vif-bg-light);
    border-top: 1px solid var(--vif-border-color);
}

/* Feedback Buttons */
.vif-feedback-buttons {
    margin-top: 10px;
    padding-top: 10px;
    border-top: 1px solid #eee;
    display: flex;
    align-items: center;
    gap: 8px;
}

.vif-feedback-label {
    font-size: 12px;
    color: #888;
}

.vif-feedback-btn {
    background: none;
    border: none;
    cursor: pointer;
    font-size: 16px;
    padding: 4px 8px;
    border-radius: 4px;
    transition: background 0.2s;
}

.vif-feedback-btn:hover {
    background: #f0f0f0;
}

.vif-feedback-thanks {
    font-size: 12px;
    color: #4caf50;
}

/* Course Cards */
.vif-course-cards {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin: 10px 0;
    padding-left: 46px;
}

.vif-course-card {
    display: flex;
    background: white;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    text-decoration: none;
    color: inherit;
    transition: transform 0.2s, box-shadow 0.2s;
}

.vif-course-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.vif-course-card img {
    width: 80px;
    height: 80px;
    object-fit: cover;
}

.vif-course-card-content {
    padding: 12px;
    flex: 1;
}

.vif-course-card-content h4 {
    margin: 0 0 4px;
    font-size: 14px;
    color: var(--vif-text-color);
}

.vif-course-card-link {
    font-size: 12px;
    color: var(--vif-primary-color);
}

/* ============================================
   EMBEDDED WIDGET STYLES
   ============================================ */

.vif-chatbot-container,
.vif-chatbot-embedded {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    max-width: 800px;
    margin: 20px auto;
    border: 1px solid var(--vif-border-color);
    border-radius: var(--vif-radius);
    overflow: hidden;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    background: var(--vif-bg-color);
    display: flex;
    flex-direction: column;
}

.vif-chatbot-container[data-theme="dark"] {
    background: #1e1e1e;
    border-color: #333;
    color: #fff;
}

/* Header */
.vif-chatbot-header {
    background: linear-gradient(135deg, var(--vif-primary-color) 0%, var(--vif-primary-dark) 100%);
    color: white;
    padding: 20px;
    text-align: center;
}

.vif-chatbot-header h3 {
    margin: 0 0 5px 0;
    font-size: 20px;
    font-weight: 600;
}

.vif-chatbot-header p {
    margin: 0;
    font-size: 14px;
    opacity: 0.9;
}

/* Messages Container */
.vif-chatbot-messages {
    flex: 1;
    padding: 20px;
    overflow-y: auto;
    max-height: 400px;
    min-height: 300px;
    background: var(--vif-bg-light);
}

.vif-chatbot-container[data-theme="dark"] .vif-chatbot-messages {
    background: #2a2a2a;
}

/* Input Container */
.vif-chatbot-input-container {
    display: flex;
    padding: 15px;
    background: white;
    border-top: 1px solid var(--vif-border-color);
    gap: 10px;
}

.vif-chatbot-container[data-theme="dark"] .vif-chatbot-input-container {
    background: #1e1e1e;
    border-top-color: #333;
}

.vif-chatbot-input {
    flex: 1;
    padding: 12px 16px;
    border: 1px solid var(--vif-border-color);
    border-radius: 24px;
    font-size: 14px;
    outline: none;
    transition: border-color 0.3s;
}

.vif-chatbot-input:focus {
    border-color: var(--vif-primary-color);
}

.vif-chatbot-container[data-theme="dark"] .vif-chatbot-input {
    background: #2a2a2a;
    border-color: #444;
    color: #fff;
}

.vif-chatbot-send {
    padding: 12px 24px;
    background: linear-gradient(135deg, var(--vif-primary-color) 0%, var(--vif-primary-dark) 100%);
    color: white;
    border: none;
    border-radius: 24px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 600;
    transition: transform 0.2s, box-shadow 0.2s;
}

.vif-chatbot-send:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(81, 144, 213, 0.4);
}

.vif-chatbot-send:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
}

/* Typing Indicator */
.vif-chatbot-typing {
    display: flex;
    align-items: center;
    padding: 10px 0;
}

.vif-chatbot-typing span {
    width: 8px;
    height: 8px;
    margin: 0 2px;
    background: var(--vif-primary-color);
    border-radius: 50%;
    display: inline-block;
    animation: vifTyping 1.4s infinite;
}

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

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

/* Dark theme adjustments */
.vif-chatbot-container[data-theme="dark"] .vif-message-content {
    background: #3a3a3a;
    color: #fff;
}

.vif-chatbot-container[data-theme="dark"] .vif-user-message .vif-message-content {
    background: #1565c0;
}

.vif-chatbot-container[data-theme="dark"] .vif-message-content strong {
    color: #9fa8da;
}

.vif-chatbot-container[data-theme="dark"] .vif-message-content code {
    background: #2a2a2a;
}

.vif-chatbot-container[data-theme="dark"] .vif-error-message .vif-message-content {
    background: #5d1f1f;
    border-left-color: #ef5350;
}

/* ============================================
   RTL SUPPORT
   ============================================ */

.vif-floating-widget[data-rtl="true"] .vif-chat-window,
.vif-chat-window.rtl,
[dir="rtl"] .vif-chatbot-container {
    direction: rtl;
    text-align: right;
}

[dir="rtl"] .vif-message-avatar,
.vif-floating-widget[data-rtl="true"] .vif-bot-message .vif-message-avatar {
    margin-right: 0;
    margin-left: 10px;
}

[dir="rtl"] .vif-user-message .vif-message-avatar,
.vif-floating-widget[data-rtl="true"] .vif-user-message .vif-message-avatar {
    margin-left: 0;
    margin-right: 10px;
}

[dir="rtl"] .vif-message-content,
.vif-floating-widget[data-rtl="true"] .vif-message-content {
    border-top-left-radius: 12px;
    border-top-right-radius: 4px;
}

[dir="rtl"] .vif-user-message .vif-message-content,
.vif-floating-widget[data-rtl="true"] .vif-user-message .vif-message-content {
    border-top-right-radius: 12px;
    border-top-left-radius: 4px;
}

[dir="rtl"] .vif-message-content ul,
[dir="rtl"] .vif-message-content ol {
    padding-left: 0;
    padding-right: 20px;
}

[dir="rtl"] .vif-course-cards {
    padding-left: 0;
    padding-right: 46px;
}

/* ============================================
   SCROLLBAR STYLING
   ============================================ */

.vif-chat-messages::-webkit-scrollbar,
.vif-chatbot-messages::-webkit-scrollbar {
    width: 6px;
}

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

.vif-chat-messages::-webkit-scrollbar-thumb,
.vif-chatbot-messages::-webkit-scrollbar-thumb {
    background: #ccc;
    border-radius: 3px;
}

.vif-chat-messages::-webkit-scrollbar-thumb:hover,
.vif-chatbot-messages::-webkit-scrollbar-thumb:hover {
    background: #999;
}

/* ============================================
   RESPONSIVE DESIGN
   ============================================ */

@media (max-width: 480px) {
    .vif-floating-widget {
        bottom: 16px;
        right: 16px;
    }

    .vif-floating-widget[data-position="left"] {
        left: 16px;
    }

    .vif-chat-window {
        width: calc(100vw - 32px);
        height: calc(100vh - 120px);
        bottom: 70px;
        right: -8px;
    }

    .vif-floating-widget[data-position="left"] .vif-chat-window {
        left: -8px;
    }

    .vif-chat-toggle {
        width: 54px;
        height: 54px;
    }

    .vif-chat-toggle svg {
        width: 24px;
        height: 24px;
    }

    .vif-chatbot-container {
        margin: 10px;
        border-radius: 8px;
    }

    .vif-chatbot-header {
        padding: 15px;
    }

    .vif-chatbot-header h3 {
        font-size: 18px;
    }

    .vif-chatbot-messages,
    .vif-chat-messages {
        padding: 12px;
    }

    .vif-message-avatar {
        width: 32px;
        height: 32px;
        font-size: 16px;
    }

    .vif-quick-reply-btn {
        padding: 6px 12px;
        font-size: 12px;
    }
}

/* ============================================
   PRINT STYLES
   ============================================ */

@media print {
    .vif-floating-widget {
        display: none !important;
    }
}