/* ================================
   AI CHAT WIDGET STYLES
   ================================ */

/* Chat Widget Variables - Using Portfolio Color Scheme */
:root {
    /* Reuse existing portfolio colors for consistency */
    --chat-primary: var(--primary-color);           /* #88c0d0 - Cyan */
    --chat-primary-dark: var(--primary-hover);      /* #98d5e7 - Lighter Cyan */
    --chat-primary-light: var(--primary-light);     /* #bfe3ec - Light Cyan */
    --chat-accent: var(--accent-color);             /* #ebcb8b - Amber */
    --chat-accent-hover: var(--accent-hover);       /* #d9b876 - Darker Amber */
    
    /* Background colors from portfolio */
    --chat-bg: var(--bg-secondary);                 /* #1a1a1a */
    --chat-bg-elevated: var(--bg-tertiary);         /* #2a2a2a */
    --chat-bot-msg: var(--bg-tertiary);             /* #2a2a2a */
    --chat-user-msg: var(--primary-color);          /* #88c0d0 */
    
    /* Text colors from portfolio */
    --chat-text-primary: var(--text-primary);       /* #ffffff */
    --chat-text-secondary: var(--text-secondary);   /* #b0b0b0 */
    --chat-text-tertiary: var(--text-tertiary);     /* #808080 */
    
    /* Border colors from portfolio */
    --chat-border: var(--border-color);             /* #404040 */
    --chat-border-light: var(--border-light);       /* #303030 */
    
    /* Status colors from portfolio */
    --chat-success: var(--success-color);           /* #10b981 */
    --chat-danger: var(--error-color);              /* #ef4444 */
    
    /* Shadows */
    --chat-shadow: rgba(0, 0, 0, 0.3);
    --chat-shadow-lg: rgba(0, 0, 0, 0.5);
    
    /* Transitions from portfolio */
    --chat-transition: var(--transition-base);      /* 150ms ease */
    --chat-transition-fast: var(--transition-fast); /* 100ms ease */
}

/* ================================
   CHAT BUTTON (FAB)
   ================================ */

.chat-widget-container {
    display: none; /* Chatbot hidden */
    position: fixed;
    bottom: 24px;
    left: 24px;
    z-index: 9999;
    font-family: var(--font-primary);  /* Using portfolio font */
}

.chat-fab-button {
    position: relative;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: var(--gradient-primary);  /* Using portfolio gradient */
    border: none;
    cursor: pointer;
    box-shadow: 0 4px 12px var(--chat-shadow);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--chat-transition-fast);
    overflow: visible;
}

.chat-fab-button:hover {
    transform: scale(1.05) translateY(-2px);
    box-shadow: 0 6px 20px var(--chat-shadow-lg);
}

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

/* Pulse Animation for Attention */
.chat-fab-button.pulse {
    animation: chatPulse 2s infinite;
}

@keyframes chatPulse {
    0%, 100% {
        box-shadow: 0 4px 12px var(--chat-shadow), 0 0 0 0 rgba(136, 192, 208, 0.7);
    }
    50% {
        box-shadow: 0 4px 12px var(--chat-shadow), 0 0 0 12px rgba(136, 192, 208, 0);
    }
}

/* Chat Icon */
.chat-icon {
    width: 28px;
    height: 28px;
    fill: white;
    transition: var(--chat-transition);
}

.chat-fab-button.active .chat-icon {
    transform: scale(0);
    opacity: 0;
}

/* Close Icon (appears when chat is open) */
.close-icon {
    position: absolute;
    width: 24px;
    height: 24px;
    fill: white;
    transform: scale(0) rotate(-180deg);
    opacity: 0;
    transition: var(--chat-transition);
}

.chat-fab-button.active .close-icon {
    transform: scale(1) rotate(0deg);
    opacity: 1;
}

/* Unread Badge */
.chat-badge {
    position: absolute;
    top: -4px;
    right: -4px;
    background: var(--chat-danger);
    color: white;
    border-radius: 12px;
    padding: 2px 6px;
    font-size: var(--text-xs);  /* Using portfolio font size */
    font-weight: var(--font-semibold);  /* Using portfolio font weight */
    min-width: 20px;
    text-align: center;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
    animation: badgePop 0.3s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

@keyframes badgePop {
    0% {
        transform: scale(0);
    }
    50% {
        transform: scale(1.2);
    }
    100% {
        transform: scale(1);
    }
}

/* ================================
   CHAT INTERFACE
   ================================ */

.chat-interface {
    position: fixed;
    bottom: 100px;
    left: 24px;
    width: 380px;
    max-width: calc(100vw - 48px);
    height: 600px;
    max-height: calc(100vh - 140px);
    background: var(--chat-bg);
    border-radius: 16px;
    box-shadow: 0 8px 32px var(--chat-shadow-lg);
    display: flex;
    flex-direction: column;
    opacity: 0;
    transform: translateY(20px) scale(0.95);
    pointer-events: none;
    transition: var(--chat-transition);
    overflow: hidden;
    border: 1px solid var(--chat-border);
}

.chat-interface.active {
    opacity: 1;
    transform: translateY(0) scale(1);
    pointer-events: all;
}

/* Backdrop Overlay */
.chat-backdrop {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.4);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
    z-index: 9998;
    backdrop-filter: blur(2px);
}

.chat-backdrop.active {
    opacity: 1;
    pointer-events: all;
}

/* ================================
   CHAT HEADER
   ================================ */

.chat-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 20px;
    background: var(--gradient-primary);  /* Using portfolio gradient */
    color: white;
    flex-shrink: 0;
}

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

.chat-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.2);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
}

.chat-title-block h3 {
    margin: 0;
    font-size: var(--text-base);  /* Using portfolio font size */
    font-weight: var(--font-semibold);  /* Using portfolio font weight */
}

.chat-status {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: var(--text-xs);  /* Using portfolio font size */
    margin-top: 2px;
    opacity: 0.9;
}

.status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--chat-success);
    animation: statusPulse 2s infinite;
}

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

.chat-close-btn {
    background: rgba(255, 255, 255, 0.2);
    border: none;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--chat-transition);
}

.chat-close-btn:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: rotate(90deg);
}

.chat-close-btn svg {
    width: 16px;
    height: 16px;
    fill: white;
}

/* ================================
   CHAT MESSAGES AREA
   ================================ */

.chat-messages {
    flex: 1;
    overflow-y: auto;
    padding: 20px;
    display: flex;
    flex-direction: column;
    gap: 16px;
    background: var(--chat-bg);
}

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

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

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

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

/* Message Bubble */
.message {
    display: flex;
    gap: 10px;
    animation: messageSlideIn 0.3s ease;
}

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

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

.message-avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: var(--chat-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    color: white;
    flex-shrink: 0;
}

.message.bot .message-avatar {
    background: var(--gradient-primary);  /* Using portfolio gradient */
}

.message.user .message-avatar {
    background: var(--bg-quaternary);  /* Using portfolio color */
}

.message-content {
    display: flex;
    flex-direction: column;
    gap: 4px;
    max-width: 70%;
}

.message.user .message-content {
    align-items: flex-end;
}

.message-bubble {
    padding: 10px 14px;
    border-radius: 12px;
    font-size: var(--text-sm);  /* Using portfolio font size */
    line-height: var(--leading-normal);  /* Using portfolio line height */
    color: var(--chat-text-primary);
    word-wrap: break-word;
}

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

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

.message-time {
    font-size: var(--text-xs);  /* Using portfolio font size */
    color: var(--chat-text-secondary);
    padding: 0 4px;
}

/* Rating Buttons */
.message-rating {
    display: flex;
    gap: 8px;
    margin-top: 4px;
}

.rating-btn {
    background: transparent;
    border: 1px solid var(--chat-border);
    border-radius: 6px;
    width: 28px;
    height: 28px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--chat-transition);
}

.rating-btn:hover {
    background: rgba(136, 192, 208, 0.2);  /* Subtle primary color */
    border-color: var(--chat-primary);
}

.rating-btn.active {
    background: var(--chat-primary);
    border-color: var(--chat-primary);
}

.rating-btn svg {
    width: 14px;
    height: 14px;
    fill: var(--chat-text-secondary);
}

.rating-btn.active svg {
    fill: white;
}

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

.typing-dots {
    display: flex;
    gap: 4px;
    padding: 10px 14px;
    background: var(--chat-bot-msg);
    border-radius: 12px;
    border-bottom-left-radius: 4px;
}

.typing-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--chat-text-secondary);
    animation: typingAnimation 1.4s infinite;
}

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

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

@keyframes typingAnimation {
    0%, 60%, 100% {
        transform: translateY(0);
        opacity: 0.7;
    }
    30% {
        transform: translateY(-10px);
        opacity: 1;
    }
}

/* ================================
   QUICK ACTIONS
   ================================ */

.chat-quick-actions {
    padding: 0 20px 12px 20px;
    display: flex;
    flex-direction: column;
    gap: 8px;
    flex-shrink: 0;
}

.quick-action-title {
    font-size: var(--text-xs);  /* Using portfolio font size */
    font-weight: var(--font-semibold);  /* Using portfolio font weight */
    color: var(--chat-text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.quick-actions-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 8px;
}

.quick-action-btn {
    padding: 10px 12px;
    background: var(--chat-bg);
    border: 1px solid var(--chat-border);
    border-radius: var(--radius-base);  /* Using portfolio radius */
    font-size: var(--text-sm);  /* Using portfolio font size */
    font-family: var(--font-primary);  /* Using portfolio font */
    color: var(--chat-text-primary);
    cursor: pointer;
    transition: var(--chat-transition-fast);  /* Using portfolio transition */
    text-align: left;
    display: flex;
    align-items: center;
    gap: 8px;
}

.quick-action-btn:hover {
    background: rgba(136, 192, 208, 0.15);  /* Subtle primary color */
    border-color: var(--chat-primary);
    transform: translateY(-2px);
    box-shadow: 0 4px 8px var(--chat-shadow);
}

.quick-action-btn svg {
    width: 16px;
    height: 16px;
    fill: var(--chat-primary);
}

/* ================================
   CHAT INPUT
   ================================ */

.chat-input-container {
    padding: 16px 20px;
    border-top: 1px solid var(--chat-border);
    background: var(--chat-bg);
    flex-shrink: 0;
}

.chat-input-wrapper {
    display: flex;
    gap: 8px;
    align-items: flex-end;
}

.chat-input {
    flex: 1;
    padding: 12px 16px;
    border: 1px solid var(--chat-border);
    border-radius: 24px;
    font-size: var(--text-sm);  /* Using portfolio font size */
    font-family: var(--font-primary);  /* Using portfolio font */
    resize: none;
    max-height: 100px;
    background: var(--chat-bg);
    color: var(--chat-text-primary);
    transition: var(--chat-transition);
}

.chat-input:focus {
    outline: none;
    border-color: var(--chat-primary);
    box-shadow: 0 0 0 3px rgba(136, 192, 208, 0.2);
}

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

.chat-send-btn {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--gradient-primary);  /* Using portfolio gradient */
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--chat-transition-fast);
    flex-shrink: 0;
}

.chat-send-btn:hover {
    transform: scale(1.05);
    box-shadow: 0 4px 12px var(--chat-shadow);
}

.chat-send-btn:active {
    transform: scale(0.95);
}

.chat-send-btn:disabled {
    background: var(--bg-quaternary);
    cursor: not-allowed;
    opacity: 0.5;
}

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

/* ================================
   EMPTY STATE
   ================================ */

.chat-empty-state {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 40px 20px;
    text-align: center;
}

.empty-state-icon {
    width: 80px;
    height: 80px;
    margin-bottom: 16px;
    opacity: 0.5;
}

.empty-state-title {
    font-size: var(--text-lg);  /* Using portfolio font size */
    font-weight: var(--font-semibold);  /* Using portfolio font weight */
    color: var(--chat-text-primary);
    margin: 0 0 8px 0;
}

.empty-state-text {
    font-size: var(--text-sm);  /* Using portfolio font size */
    color: var(--chat-text-secondary);
    margin: 0;
}

/* ================================
   MOBILE RESPONSIVE
   ================================ */

@media (max-width: 768px) {
    .chat-widget-container {
        bottom: 16px;
        left: 16px;
    }

    .chat-fab-button {
        width: 56px;
        height: 56px;
    }

    .chat-interface {
        position: fixed;
        top: 0;
        left: 0;
        bottom: 0;
        right: 0;
        width: 100%;
        max-width: 100%;
        height: 100%;
        max-height: 100%;
        border-radius: 0;
        transform: translateY(100%);
    }

    .chat-interface.active {
        transform: translateY(0);
    }

    .message-content {
        max-width: 80%;
    }

    .quick-actions-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .chat-header {
        padding: 14px 16px;
    }

    .chat-messages {
        padding: 16px;
    }

    .chat-input-container {
        padding: 12px 16px;
    }

    .message-content {
        max-width: 85%;
    }
}

/* ================================
   ACCESSIBILITY
   ================================ */

.chat-fab-button:focus,
.chat-close-btn:focus,
.chat-send-btn:focus,
.quick-action-btn:focus,
.rating-btn:focus {
    outline: 2px solid var(--chat-primary);
    outline-offset: 2px;
}

/* Reduce motion for accessibility */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}