/**
 * Chat Widget Styles
 */

:root {
    --primary-color: #0088cc;
    --primary-dark: #006699;
    --success-color: #4CAF50;
    --danger-color: #f44336;
    --text-color: #333;
    --bg-color: #fff;
    --border-color: #e0e0e0;
    --shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
}

/* Chat Button */
#chat-widget {
    position: fixed;
    bottom: 20px;
    right: 20px;
    z-index: 9999;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
}

.chat-button {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    box-shadow: var(--shadow);
    transition: transform 0.2s, box-shadow 0.2s;
    position: relative;
}

.chat-button:hover {
    transform: scale(1.1);
    box-shadow: 0 6px 25px rgba(0, 136, 204, 0.4);
}

.unread-badge {
    position: absolute;
    top: 0;
    right: 0;
    background: var(--danger-color);
    color: white;
    border-radius: 50%;
    width: 22px;
    height: 22px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    font-weight: bold;
    border: 2px solid white;
}

/* Chat Window */
.chat-window {
    position: fixed;
    bottom: 20px;
    right: 20px;
    width: 380px;
    height: 600px;
    max-height: 85vh;
    background: var(--bg-color);
    border-radius: 12px;
    box-shadow: var(--shadow);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    animation: slideUp 0.3s ease-out;
}

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

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

.chat-header-info h3 {
    margin: 0 0 4px 0;
    font-size: 18px;
    font-weight: 600;
}

.chat-header-info p {
    margin: 0;
    font-size: 13px;
    opacity: 0.9;
}

.chat-close-btn {
    background: none;
    border: none;
    color: white;
    font-size: 28px;
    cursor: pointer;
    line-height: 1;
    padding: 0;
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: background 0.2s;
}

.chat-close-btn:hover {
    background: rgba(255, 255, 255, 0.2);
}

/* Welcome Screen */
.welcome-screen {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 30px;
}

.welcome-content {
    text-align: center;
    width: 100%;
}

.welcome-content h4 {
    font-size: 24px;
    margin: 0 0 10px 0;
    color: var(--text-color);
}

.welcome-content p {
    color: #666;
    margin: 0 0 30px 0;
}

.welcome-content input {
    width: 100%;
    padding: 12px;
    margin-bottom: 12px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-size: 14px;
    box-sizing: border-box;
    transition: border-color 0.2s;
}

.welcome-content input:focus {
    outline: none;
    border-color: var(--primary-color);
}

.chat-btn {
    width: 100%;
    padding: 12px;
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.2s;
}

.chat-btn:hover {
    background: var(--primary-dark);
}

/* Messages Container */
.chat-messages {
    flex: 1;
    overflow-y: auto;
    padding: 20px;
    background: #f5f5f5;
}

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

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

.message.visitor {
    justify-content: flex-end;
}

.message.operator,
.message.system {
    justify-content: flex-start;
}

.message-bubble {
    max-width: 75%;
    padding: 10px 14px;
    border-radius: 18px;
    word-wrap: break-word;
    font-size: 14px;
    line-height: 1.4;
}

.message.visitor .message-bubble {
    background: var(--primary-color);
    color: white;
    border-bottom-right-radius: 4px;
}

.message.operator .message-bubble {
    background: white;
    color: var(--text-color);
    border-bottom-left-radius: 4px;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
}

.message.system .message-bubble {
    background: #e3f2fd;
    color: #1976d2;
    font-size: 13px;
}

.message-time {
    font-size: 11px;
    color: #999;
    margin-top: 4px;
    text-align: right;
}

.message.operator .message-time {
    text-align: left;
}

/* Attachments */
.message-attachment {
    margin-top: 8px;
}

.message-attachment img {
    max-width: 100%;
    border-radius: 8px;
    cursor: pointer;
    transition: opacity 0.2s;
}

.message-attachment img:hover {
    opacity: 0.9;
}

.message-attachment a {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 12px;
    background: rgba(0, 0, 0, 0.05);
    border-radius: 8px;
    text-decoration: none;
    color: inherit;
    font-size: 13px;
}

.message.visitor .message-attachment a {
    background: rgba(255, 255, 255, 0.2);
}

/* File Preview */
.file-preview {
    background: #f5f5f5;
    padding: 10px;
    border-top: 1px solid var(--border-color);
}

.file-preview-content {
    position: relative;
    display: flex;
    align-items: center;
    gap: 10px;
}

.file-preview img {
    max-width: 60px;
    max-height: 60px;
    border-radius: 4px;
}

.file-info {
    display: flex;
    align-items: center;
    gap: 10px;
    flex: 1;
}

.remove-file-btn {
    position: absolute;
    top: -5px;
    right: -5px;
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: var(--danger-color);
    color: white;
    border: none;
    cursor: pointer;
    font-size: 18px;
    line-height: 1;
    display: flex;
    align-items: center;
    justify-content: center;
}

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

#chat-form {
    display: flex;
    gap: 8px;
    align-items: center;
}

.attach-btn {
    background: none;
    border: none;
    color: var(--primary-color);
    cursor: pointer;
    padding: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: background 0.2s;
}

.attach-btn:hover {
    background: #f5f5f5;
}

#chat-input {
    flex: 1;
    padding: 10px 14px;
    border: 1px solid var(--border-color);
    border-radius: 20px;
    font-size: 14px;
    outline: none;
    transition: border-color 0.2s;
}

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

.chat-send-btn {
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: 50%;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: background 0.2s;
}

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

.chat-send-btn:disabled {
    background: #ccc;
    cursor: not-allowed;
}

/* Connection Status */
.connection-status {
    font-size: 11px;
    padding: 4px 12px;
    text-align: center;
    background: #f5f5f5;
    border-top: 1px solid var(--border-color);
}

/* Mobile Responsive */
@media (max-width: 480px) {
    .chat-window {
        width: 100%;
        height: 100%;
        max-height: 100vh;
        bottom: 0;
        right: 0;
        border-radius: 0;
    }

    .chat-button {
        bottom: 15px;
        right: 15px;
    }
}

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

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

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

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