/* AI Chat Widget - Vuetify Style with Enhanced Accessibility */

/* Screen reader only content */
.visually-hidden {
    position: absolute !important;
    width: 1px !important;
    height: 1px !important;
    padding: 0 !important;
    margin: -1px !important;
    overflow: hidden !important;
    clip: rect(0, 0, 0, 0) !important;
    white-space: nowrap !important;
    border: 0 !important;
}

/* Optimized pulse animation */
@keyframes pulse {
    0% { 
    opacity: 1;
    }
    50% { 
    transform: scale(1.05);
    opacity: 0.9;
    }
    100% { 
    transform: scale(1);
    opacity: 1;
    }
}

/* Main widget container */
.chat-widget {
    position: fixed;
    bottom: 24px;
    right: 24px;
    z-index: 1050;
    font-family: 'Roboto', -apple-system, BlinkMacSystemFont, sans-serif;
}

/* Responsive positioning to avoid navigation conflicts */
@media (max-width: 768px) {
    .chat-widget {
        bottom: 120px; /* Above mobile navigation */
        right: 16px;
    }
}

@media (min-width: 769px) {
    .chat-widget {
        bottom: 100px; /* Above desktop navigation */
    }
}

/* When sidebar is visible, adjust position */
.layout.has-sidebar .chat-widget {
    right: calc(24px + 375px);
}

/* Chat trigger button */
.chat-button {
    background: linear-gradient(135deg, #1976d2 0%, #1565c0 50%, #0d47a1 100%);
    border: none;
    border-radius: 28px;
    color: white;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 20px;
    min-width: 56px;
    height: 56px;
    transition: all 300ms cubic-bezier(0.4, 0, 0.2, 1);
    font-size: 14px;
    font-weight: 500;
    text-transform: none;
    letter-spacing: 0.25px;
    box-shadow: 
        0 3px 5px -1px rgba(0,0,0,.2), 
        0 6px 10px 0 rgba(0,0,0,.14), 
        0 1px 18px 0 rgba(0,0,0,.12),
        0 0 0 0 rgba(25, 118, 210, 0.4);
    position: relative;
    overflow: hidden;
}

/* Add a subtle ripple effect */
.chat-button::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
    transition: all 0.6s ease;
    transform: translate(-50%, -50%);
}

.chat-button:hover::before {
    width: 120%;
    height: 120%;
}

.chat-button:hover {
    background: linear-gradient(135deg, #1565c0 0%, #0d47a1 50%, #1a237e 100%);
    box-shadow: 
        0 5px 5px -3px rgba(0,0,0,.2), 
        0 8px 10px 1px rgba(0,0,0,.14), 
        0 3px 14px 2px rgba(0,0,0,.12),
        0 0 20px rgba(25, 118, 210, 0.3);
    transform: translateY(-2px) scale(1.02);
}

.chat-button:focus {
    outline: 3px solid rgba(25, 118, 210, 0.3);
    outline-offset: 2px;
    box-shadow: 
        0 5px 5px -3px rgba(0,0,0,.2), 
        0 8px 10px 1px rgba(0,0,0,.14), 
        0 3px 14px 2px rgba(0,0,0,.12),
        0 0 0 3px rgba(25, 118, 210, 0.3);
}

.chat-button:active {
    box-shadow: 0 2px 2px 0 rgba(0,0,0,.14), 0 3px 1px -2px rgba(0,0,0,.12), 0 1px 5px 0 rgba(0,0,0,.2);
}

.chat-button--active {
    background: linear-gradient(135deg, #388e3c 0%, #2e7d32 50%, #1b5e20 100%);
    animation: subtlePulse 2s ease-in-out infinite;
}

@keyframes subtlePulse {
    0%, 100% { 
        box-shadow: 
            0 3px 5px -1px rgba(0,0,0,.2), 
            0 6px 10px 0 rgba(0,0,0,.14), 
            0 1px 18px 0 rgba(0,0,0,.12),
            0 0 0 0 rgba(56, 142, 60, 0.4);
    }
    50% { 
        box-shadow: 
            0 3px 5px -1px rgba(0,0,0,.2), 
            0 6px 10px 0 rgba(0,0,0,.14), 
            0 1px 18px 0 rgba(0,0,0,.12),
            0 0 0 8px rgba(56, 142, 60, 0.1);
    }
}

.chat-button-text {
    margin-left: 4px;
    white-space: nowrap;
}

/* Chat overlay */
.chat-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.4);
    -webkit-backdrop-filter: blur(4px);
    backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1055;
    animation: fadeInEnhanced 250ms cubic-bezier(0.4, 0, 0.2, 1);
}

@keyframes fadeInEnhanced {
    from { 
        opacity: 0;
        -webkit-backdrop-filter: blur(0px);
        backdrop-filter: blur(0px);
    }
    to { 
        opacity: 1;
        -webkit-backdrop-filter: blur(4px);
        backdrop-filter: blur(4px);
    }
}

/* Chat card */
.chat-card {
    background: white;
    border-radius: 16px;
    width: 90vw;
    max-width: 800px;
    height: 80vh;
    max-height: 700px;
    display: flex;
    flex-direction: column;
    box-shadow: 
        0 24px 38px 3px rgba(0,0,0,.14), 
        0 9px 46px 8px rgba(0,0,0,.12),
        0 11px 15px -7px rgba(0,0,0,.2);
    animation: slideUpEnhanced 350ms cubic-bezier(0.34, 1.56, 0.64, 1);
    -webkit-backdrop-filter: blur(1px);
    backdrop-filter: blur(1px);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

/* Desktop-specific sizing for better space utilization */
@media (min-width: 769px) {
    .chat-card {
        width: 80vw;
        max-width: 900px;
        height: 85vh;
        max-height: 800px;
    }
}

@keyframes slideUpEnhanced {
    0% {
        opacity: 0;
        transform: translateY(30px) scale(0.95);
    }
    100% {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

/* Chat header */
.chat-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 24px 28px;
    border-bottom: 1px solid rgba(0, 0, 0, 0.08);
    background: linear-gradient(135deg, #f8f9fa 0%, #f1f3f4 100%);
    border-radius: 16px 16px 0 0;
    position: relative;
}

.chat-header::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent 0%, rgba(25, 118, 210, 0.2) 50%, transparent 100%);
}

.chat-title {
    display: flex;
    align-items: center;
    margin: 0;
    font-size: 20px;
    font-weight: 600;
    color: rgba(0, 0, 0, 0.87);
    letter-spacing: 0.15px;
}

.chat-title i {
    color: #1976d2;
    margin-right: 12px;
    font-size: 24px;
}

.chat-close-button {
    background: rgba(0, 0, 0, 0.04);
    border: none;
    cursor: pointer;
    padding: 10px;
    border-radius: 50%;
    color: rgba(0, 0, 0, 0.54);
    transition: all 200ms cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
}

.chat-close-button:hover {
    background: rgba(244, 67, 54, 0.08);
    color: #f44336;
    transform: rotate(90deg);
}

.chat-close-button:focus {
    outline: 3px solid rgba(25, 118, 210, 0.3);
    outline-offset: 2px;
}

/* Header actions container */
.chat-header-actions {
    display: flex;
    align-items: center;
    gap: 8px;
}

/* Messages area */
.chat-messages {
    flex: 1;
    overflow-y: auto;
    padding: 16px;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.welcome-message {
    text-align: center;
    color: rgba(0, 0, 0, 0.6);
    padding: 40px 24px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 16px;
}

.welcome-message i {
    font-size: 56px;
    color: #1976d2;
    opacity: 0.8;
    animation: gentleBounce 3s ease-in-out infinite;
}

@keyframes gentleBounce {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-5px); }
}

.welcome-message p {
    margin: 0;
    font-size: 16px;
    line-height: 1.6;
    font-weight: 400;
}

/* Login required message */
.login-required-message {
    text-align: center;
    color: rgba(0, 0, 0, 0.6);
    padding: 40px 24px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 16px;
}

.login-required-message i {
    font-size: 56px;
    color: #f57c00;
    opacity: 0.8;
}

.login-required-message h3 {
    margin: 0;
    font-size: 20px;
    font-weight: 500;
    color: rgba(0, 0, 0, 0.8);
}

.login-required-message p {
    margin: 0;
    font-size: 16px;
    line-height: 1.6;
    font-weight: 400;
}

.login-required-message .btn {
    padding: 12px 24px;
    border-radius: 24px;
    font-weight: 500;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    transition: all 0.3s ease;
}

.login-required-message .btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(25, 118, 210, 0.3);
}

/* Rate limiting error message */
.rate-limit-error {
    text-align: center;
    color: rgba(0, 0, 0, 0.7);
    padding: 20px 24px;
    margin: 16px 0;
    background: linear-gradient(135deg, #fff3e0 0%, #ffecb3 100%);
    border: 1px solid #ffb74d;
    border-radius: 12px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    animation: fadeInShake 0.5s ease-out;
}

.rate-limit-error i {
    font-size: 32px;
    color: #ff9800;
    opacity: 0.9;
}

.rate-limit-error h4 {
    margin: 0;
    font-size: 18px;
    font-weight: 600;
    color: #e65100;
}

.rate-limit-error p {
    margin: 0;
    font-size: 14px;
    line-height: 1.5;
    font-weight: 400;
    color: rgba(0, 0, 0, 0.8);
}

.rate-limit-error .retry-info {
    font-size: 13px;
    font-weight: 500;
    color: #f57c00;
    background: rgba(255, 193, 7, 0.1);
    padding: 8px 16px;
    border-radius: 20px;
    border: 1px solid rgba(255, 193, 7, 0.3);
}

/* Shake animation for error messages */
@keyframes fadeInShake {
    0% {
        opacity: 0;
        transform: translateX(-10px);
    }
    50% {
        opacity: 0.8;
        transform: translateX(5px);
    }
    100% {
        opacity: 1;
        transform: translateX(0);
    }
}

/* General error message styles */
.error-message {
    background: linear-gradient(135deg, #ffebee 0%, #ffcdd2 100%);
    border: 1px solid #ef5350;
    color: #c62828;
    padding: 16px 20px;
    margin: 12px 0;
    border-radius: 8px;
    font-size: 14px;
    line-height: 1.5;
    display: flex;
    align-items: center;
    gap: 10px;
    animation: fadeInShake 0.5s ease-out;
}

.error-message i {
    font-size: 18px;
    color: #d32f2f;
    flex-shrink: 0;
}

.error-message .message-text {
    flex: 1;
}

/* Success/info message styles for contrast */
.success-message {
    background: linear-gradient(135deg, #e8f5e8 0%, #c8e6c9 100%);
    border: 1px solid #66bb6a;
    color: #2e7d32;
    padding: 16px 20px;
    margin: 12px 0;
    border-radius: 8px;
    font-size: 14px;
    line-height: 1.5;
    display: flex;
    align-items: center;
    gap: 10px;
    animation: fadeIn 0.3s ease-out;
}

.success-message i {
    font-size: 18px;
    color: #4caf50;
    flex-shrink: 0;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(-5px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Message bubbles */
.message-wrapper {
    display: flex;
    margin-bottom: 8px;
}

.message-wrapper.user {
    justify-content: flex-end;
}

.message-wrapper.assistant {
    justify-content: flex-start;
}

.message-bubble {
    max-width: 80%;
    padding: 14px 18px;
    border-radius: 20px;
    word-wrap: break-word;
    position: relative;
    margin-bottom: 4px;
}

.message-bubble.user {
    background: linear-gradient(135deg, #1976d2 0%, #1565c0 100%);
    color: white;
    border-bottom-right-radius: 8px;
    box-shadow: 0 2px 8px rgba(25, 118, 210, 0.3);
}

.message-bubble.assistant {
    background: #f8f9fa;
    color: rgba(0, 0, 0, 0.87);
    border-bottom-left-radius: 8px;
    border: 1px solid rgba(0, 0, 0, 0.04);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.message-content {
    font-size: 14px;
    line-height: 1.4;
}

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

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

.message-content code {
    background: rgba(0, 0, 0, 0.08);
    padding: 2px 4px;
    border-radius: 4px;
    font-size: 13px;
}

.message-content pre {
    background: rgba(0, 0, 0, 0.08);
    padding: 12px;
    border-radius: 8px;
    overflow-x: auto;
    font-size: 13px;
}

/* Typing indicator */
.typing-indicator {
    display: flex;
    align-items: center;
    gap: 8px;
}

.typing-text {
    font-size: 14px;
    color: rgba(0, 0, 0, 0.6);
}

.typing-dots {
    display: flex;
    gap: 4px;
}

.typing-dots span {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: rgba(0, 0, 0, 0.4);
    animation: typingBounce 1.4s ease-in-out infinite both;
}

.typing-dots span:nth-child(1) { animation-delay: -0.32s; }
.typing-dots span:nth-child(2) { animation-delay: -0.16s; }
.typing-dots span:nth-child(3) { animation-delay: 0s; }

@keyframes typingBounce {
    0%, 80%, 100% {
        transform: scale(0.8);
        opacity: 0.5;
    }
    40% {
        transform: scale(1);
        opacity: 1;
    }
}

/* Chat footer */
.chat-footer {
    padding: 20px 28px;
    border-top: 1px solid rgba(0, 0, 0, 0.08);
    background: linear-gradient(135deg, #ffffff 0%, #fafafa 100%);
    border-radius: 0 0 16px 16px;
}

.chat-form {
    margin-bottom: 12px;
}

.input-wrapper {
    display: flex;
    align-items: center;
    background: #f8f9fa;
    border-radius: 28px;
    padding: 6px;
    transition: all 200ms cubic-bezier(0.4, 0, 0.2, 1);
    border: 2px solid transparent;
}

.input-wrapper:focus-within {
    background: #f1f3f4;
    border-color: rgba(25, 118, 210, 0.3);
    box-shadow: 0 0 0 3px rgba(25, 118, 210, 0.1);
}

.chat-input {
    flex: 1;
    border: none;
    background: none;
    padding: 14px 18px;
    font-size: 14px;
    color: rgba(0, 0, 0, 0.87);
    outline: none;
    border-radius: 22px;
}

.chat-input::placeholder {
    color: rgba(0, 0, 0, 0.6);
}

.send-button {
    background: linear-gradient(135deg, #1976d2 0%, #1565c0 100%);
    border: none;
    border-radius: 50%;
    color: white;
    cursor: pointer;
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 200ms cubic-bezier(0.4, 0, 0.2, 1);
    margin-left: 8px;
    box-shadow: 0 2px 4px rgba(25, 118, 210, 0.3);
}

.send-button:hover:not(:disabled) {
    background: linear-gradient(135deg, #1565c0 0%, #0d47a1 100%);
    transform: scale(1.08);
    box-shadow: 0 4px 8px rgba(25, 118, 210, 0.4);
}

.send-button:active:not(:disabled) {
    transform: scale(0.95);
}

.send-button:focus {
    outline: 3px solid rgba(25, 118, 210, 0.3);
    outline-offset: 2px;
}

.send-button:disabled {
    background: rgba(0, 0, 0, 0.12);
    color: rgba(0, 0, 0, 0.26);
    cursor: not-allowed;
    transform: none;
}

/* Elevation classes for consistency with Vuetify */
.elevation-6 {
    box-shadow: 0 3px 5px -1px rgba(0,0,0,.2), 0 6px 10px 0 rgba(0,0,0,.14), 0 1px 18px 0 rgba(0,0,0,.12) !important;
}

.elevation-12 {
    box-shadow: 0 7px 8px -4px rgba(0,0,0,.2), 0 12px 17px 2px rgba(0,0,0,.14), 0 5px 22px 4px rgba(0,0,0,.12) !important;
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    .chat-button {
        border: 2px solid white;
    }
    
    .message-bubble.assistant {
        border: 1px solid rgba(0, 0, 0, 0.24);
    }
    
    .input-wrapper {
        border: 1px solid rgba(0, 0, 0, 0.24);
    }
}

/* Reduced motion support */
@media (prefers-reduced-motion: reduce) {
    .chat-button,
    .chat-overlay,
    .chat-card,
    .send-button {
        animation: none;
        transition: none;
    }
    
    .typing-dots span {
        animation: none;
    }
}

/* Mobile responsiveness */
@media (max-width: 768px) {
    .chat-card {
        width: 95vw;
        height: 85vh;
        max-width: none;
        max-height: none;
        margin: 8px;
    }
    
    .chat-button-text {
        display: none;
    }
    
    .chat-button {
        width: 56px;
        border-radius: 50%;
        padding: 0;
    }
    
    .chat-header {
        padding: 16px;
    }
    
    .chat-footer {
        padding: 12px 16px;
    }
}

/* Captcha Modal Styles */
.captcha-modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.6);
    z-index: 2000; /* Higher than chat widget */
    display: flex;
    align-items: center;
    justify-content: center;
    -webkit-backdrop-filter: blur(3px);
    backdrop-filter: blur(3px);
    animation: fadeIn 0.3s ease-out;
}

.captcha-modal-card {
    background: white;
    border-radius: 16px;
    box-shadow: 0 24px 48px rgba(0, 0, 0, 0.2);
    max-width: 480px;
    width: 90%;
    max-height: 90vh;
    overflow-y: auto;
    animation: slideInScale 0.4s ease-out;
}

.captcha-modal-header {
    padding: 24px 24px 16px;
    border-bottom: 1px solid rgba(0, 0, 0, 0.12);
    text-align: center;
}

.captcha-modal-title {
    margin: 0;
    font-size: 20px;
    font-weight: 500;
    color: #1976d2;
    display: flex;
    align-items: center;
    justify-content: center;
}

.captcha-modal-content {
    padding: 24px;
    text-align: center;
}

.captcha-explanation {
    margin: 0 0 24px;
    font-size: 16px;
    line-height: 1.6;
    color: rgba(0, 0, 0, 0.8);
}

.captcha-widget-container {
    display: flex;
    justify-content: center;
    margin: 24px 0;
    min-height: 78px; /* hCaptcha widget height */
}

.captcha-help-text {
    margin: 24px 0 0;
    font-size: 14px;
    color: rgba(0, 0, 0, 0.6);
    font-style: italic;
}

/* Modal animations */
@keyframes slideInScale {
    0% {
        opacity: 0;
        transform: translate(-50%, -60%) scale(0.8);
    }
    100% {
        opacity: 1;
        transform: translate(0, 0) scale(1);
    }
}

/* Responsive adjustments for mobile */
@media (max-width: 480px) {
    .captcha-modal-card {
        width: 95%;
        margin: 16px;
        border-radius: 12px;
    }
    
    .captcha-modal-header {
        padding: 20px 16px 12px;
    }
    
    .captcha-modal-content {
        padding: 20px 16px;
    }
    
    .captcha-modal-title {
        font-size: 18px;
    }
    
    .captcha-explanation {
        font-size: 15px;
    }
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    .captcha-modal-overlay {
        background: rgba(0, 0, 0, 0.8);
    }
    
    .captcha-modal-card {
        border: 2px solid #000;
    }
    
    .captcha-modal-header {
        border-bottom-color: #000;
    }
}

/* Reduced motion support */
@media (prefers-reduced-motion: reduce) {
    .captcha-modal-overlay,
    .captcha-modal-card {
        animation: none;
    }
    
    .captcha-modal-overlay {
        opacity: 1;
    }
    
    .captcha-modal-card {
        transform: none;
    }
}