/* =============================================
   CHATBOT EMBED STYLES
   Styles for the embeddable chat interface
   ============================================= */

/* Reset and Base */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

:root {
    /* Color Palette - Custom Theme */
    --primary-color: #228A9E;
    --primary-dark: #4b4f58;
    --primary-light: #228A9E;
    --secondary-color: #DEDB00;
    --accent-color: #DEDB00;
    --header-bg: #4b4f58;
    --dark-color: #4b4f58;
    --light-color: #F8F9FA;
    --white: #FFFFFF;
    --gray-100: #F8F9FA;
    --gray-200: #E9ECEF;
    --gray-300: #DEE2E6;
    --gray-400: #CED4DA;
    --gray-500: #ADB5BD;
    --gray-600: #6C757D;
    --gray-700: #495057;
    --text-color: #34495E;
    --error-color: #E74C3C;
    --success-color: #27AE60;
    
    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    
    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    
    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --radius-full: 50%;
    
    /* Message Specific */
    --message-radius: 18px;
    --message-padding: 12px 16px;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-normal: 250ms ease;
}

html, body {
    height: 100%;
    overflow: hidden;
}

body {
    font-family: var(--font-family);
    font-size: 14px;
    line-height: 1.5;
    color: var(--text-color);
    background: var(--white);
}

/* Utility Classes */
.hidden {
    display: none !important;
}

/* =============================================
   CHAT CONTAINER
   ============================================= */
.chat-container {
    display: flex;
    flex-direction: column;
    height: 100vh;
    background: var(--white);
    position: relative;
}

/* =============================================
   CHAT HEADER
   ============================================= */
.chat-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-md);
    background: var(--header-bg);
    color: var(--white);
    flex-shrink: 0;
}

.header-info {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.bot-avatar {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-full);
    background: var(--accent-color);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--header-bg);
}

.header-text {
    display: flex;
    flex-direction: column;
}

.bot-name {
    font-weight: 600;
    font-size: 1rem;
}

.bot-status {
    font-size: 0.75rem;
    opacity: 0.9;
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
}

.status-dot {
    width: 8px;
    height: 8px;
    border-radius: var(--radius-full);
    background: var(--accent-color);
    animation: pulse 2s infinite;
}

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

.new-chat-btn {
    background: var(--accent-color);
    border: none;
    border-radius: var(--radius-full);
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--header-bg);
    cursor: pointer;
    transition: background var(--transition-fast);
}

.new-chat-btn:hover {
    background: var(--primary-color);
    color: var(--white);
}

/* =============================================
   CHAT MESSAGES AREA
   ============================================= */
.chat-messages {
    flex: 1;
    overflow-y: auto;
    padding: var(--spacing-md);
    padding-bottom: 140px; /* ✅ space for input bar / overlay */
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    scroll-behavior: smooth;
}


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

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

.chat-messages::-webkit-scrollbar-thumb {
    background: var(--gray-300);
    border-radius: 3px;
}

.chat-messages::-webkit-scrollbar-thumb:hover {
    background: var(--gray-400);
}

/* Welcome Placeholder */
.welcome-placeholder {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100%;
    color: var(--gray-500);
    text-align: center;
}

.placeholder-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-md);
    animation: bounce 1s infinite;
}

@keyframes bounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

/* =============================================
   MESSAGE BUBBLES
   ============================================= */
.message {
    display: flex;
    flex-direction: column;
    max-width: 85%;
    animation: messageSlide 0.3s ease-out;
}

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

.message.user {
    align-self: flex-end;
}

.message.assistant {
    align-self: flex-start;
}

/* Message wrapper with icon */
.message-wrapper {
    display: flex;
    align-items: flex-end;
    gap: var(--spacing-sm);
}

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

.message.assistant .message-wrapper {
    flex-direction: row;
}

/* Avatar icons */
.message-avatar {
    width: 32px;
    height: 32px;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.message.user .message-avatar {
    background: var(--primary-color);
    color: var(--white);
}

.message.assistant .message-avatar {
    background: var(--accent-color);
    color: var(--header-bg);
}

.message-content {
    padding: var(--message-padding);
    border-radius: var(--message-radius);
    word-wrap: break-word;
    white-space: pre-wrap;
}

.message.user .message-content {
    background: var(--primary-color);
    color: var(--white);
    border-bottom-right-radius: var(--radius-sm);
}

.message.assistant .message-content {
    background: var(--gray-100);
    color: var(--text-color);
    border-bottom-left-radius: var(--radius-sm);
}

.message-time {
    font-size: 0.7rem;
    color: var(--gray-500);
    margin-top: var(--spacing-xs);
    padding: 0 var(--spacing-xs);
}

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

.message.assistant .message-time {
    padding-left: 40px; /* Align with message content after avatar */
}

/* Markdown Styling in Messages */
.message-content strong,
.message-content b {
    font-weight: 600;
}

.message-content em,
.message-content i {
    font-style: italic;
}

.message-content ul,
.message-content ol {
    margin: var(--spacing-sm) 0;
    padding-left: var(--spacing-lg);
}

.message-content li {
    margin: var(--spacing-xs) 0;
}

.message-content code {
    background: rgba(0, 0, 0, 0.1);
    padding: 2px 6px;
    border-radius: var(--radius-sm);
    font-family: monospace;
    font-size: 0.9em;
}

/* =============================================
   TYPING INDICATOR
   ============================================= */
.typing-indicator {
    display: flex;
    align-items: center;
    gap: 4px;
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--gray-100);
    border-radius: var(--message-radius);
    width: fit-content;
    margin-left: var(--spacing-md);
}

.typing-dot {
    width: 8px;
    height: 8px;
    border-radius: var(--radius-full);
    background: var(--gray-400);
    animation: typingBounce 1.4s infinite ease-in-out;
}

.typing-dot:nth-child(1) { animation-delay: 0s; }
.typing-dot:nth-child(2) { animation-delay: 0.2s; }
.typing-dot:nth-child(3) { animation-delay: 0.4s; }

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

/* =============================================
   QUICK ACTIONS
   ============================================= */
.quick-actions {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    border-top: 1px solid var(--gray-200);
    background: var(--gray-100);
}

.quick-action-btn {
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--white);
    border: 1px solid var(--gray-300);
    border-radius: var(--radius-lg);
    color: var(--primary-color);
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
}

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

/* =============================================
   CHAT INPUT AREA
   ============================================= */
.chat-input-container {
    padding: var(--spacing-md);
    border-top: 1px solid var(--gray-200);
    background: var(--white);
    flex-shrink: 0;
    position: sticky;
    bottom: 0;
    z-index: 10;
}

.input-wrapper {
    display: flex;
    align-items: flex-end;
    gap: var(--spacing-sm);
    background: var(--gray-100);
    border-radius: var(--radius-lg);
    padding: var(--spacing-sm);
    border: 2px solid transparent;
    transition: border-color var(--transition-fast);
}

.input-wrapper:focus-within {
    border-color: var(--primary-color);
}

.input-wrapper textarea {
    flex: 1;
    border: none;
    background: transparent;
    resize: none;
    font-family: inherit;
    font-size: 0.9375rem;
    line-height: 1.5;
    padding: var(--spacing-sm);
    max-height: 120px;
    color: var(--text-color);
}

.input-wrapper textarea:focus {
    outline: none;
}

.input-wrapper textarea::placeholder {
    color: var(--gray-500);
}

.send-button {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-full);
    background: var(--primary-color);
    border: none;
    color: var(--white);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
    flex-shrink: 0;
}

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

.send-button:disabled {
    background: var(--gray-300);
    cursor: not-allowed;
}

.input-hint {
    font-size: 0.7rem;
    color: var(--gray-500);
    text-align: center;
    margin-top: var(--spacing-xs);
}

/* =============================================
   CHAT DISABLED OVERLAY
   ============================================= */
.chat-disabled-overlay {
    position: absolute;
    z-index: 11;
    bottom: 0;
    left: 0;
    right: 0;
    padding: var(--spacing-md);
    background: var(--gray-100);
    border-top: 1px solid var(--gray-200);
    text-align: center;
    color: var(--gray-600);
}

.chat-disabled-overlay button {
    background: none;
    border: none;
    color: var(--primary-color);
    font-weight: 600;
    cursor: pointer;
    text-decoration: underline;
}

.chat-disabled-overlay button:hover {
    color: var(--primary-dark);
}

/* =============================================
   FEATURE LIST IN MESSAGES
   ============================================= */
.feature-list {
    margin: var(--spacing-sm) 0;
}

.feature-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-xs) 0;
}

.feature-item .check-icon {
    color: var(--success-color);
}

/* =============================================
   SUCCESS MESSAGE STYLING
   ============================================= */
.message.success .message-content {
    background: linear-gradient(135deg, var(--success-color) 0%, #1e8449 100%);
    color: var(--white);
}

/* =============================================
   ERROR STATE
   ============================================= */
.message.error .message-content {
    background: #fef2f2;
    border: 1px solid #fee2e2;
    color: var(--error-color);
}

/* =============================================
   LOADING STATE
   ============================================= */
.loading-shimmer {
    background: linear-gradient(
        90deg,
        var(--gray-200) 25%,
        var(--gray-100) 50%,
        var(--gray-200) 75%
    );
    background-size: 200% 100%;
    animation: shimmer 1.5s infinite;
}

@keyframes shimmer {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

/* =============================================
   RESPONSIVE ADJUSTMENTS
   ============================================= */
@media (max-width: 480px) {
    .message {
        max-width: 90%;
    }
    
    .chat-header {
        padding: var(--spacing-sm) var(--spacing-md);
    }
    
    .bot-avatar {
        width: 32px;
        height: 32px;
    }
    
    .bot-name {
        font-size: 0.9rem;
    }
}