/* Chat Interface Styles */

.chat-container {
    max-width: 1200px;
    margin: 0 auto;
    height: 100vh;
    display: flex;
    flex-direction: column;
    background: #ffffff;
}

.chat-header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 1.5rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.header-content h1 {
    margin: 0;
    font-size: 2rem;
    font-weight: 700;
}

.header-content .subtitle {
    margin: 0.25rem 0 0 0;
    opacity: 0.9;
    font-size: 1rem;
}

.header-controls {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.status-indicator {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    background: rgba(255,255,255,0.1);
    padding: 0.5rem 1rem;
    border-radius: 20px;
    backdrop-filter: blur(10px);
}

.status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: #4ade80;
    animation: pulse 2s infinite;
}

.status-text {
    font-size: 0.875rem;
    font-weight: 500;
}

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

.chat-main {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.messages-container {
    flex: 1;
    overflow-y: auto;
    padding: 2rem;
    background: #f8fafc;
}

.welcome-message {
    text-align: center;
    max-width: 600px;
    margin: 0 auto;
    padding: 3rem 2rem;
}

.welcome-icon {
    font-size: 4rem;
    margin-bottom: 1rem;
}

.welcome-message h2 {
    color: #1e293b;
    margin-bottom: 1rem;
    font-size: 1.875rem;
    font-weight: 600;
}

.welcome-message p {
    color: #64748b;
    margin-bottom: 2rem;
    font-size: 1.125rem;
    line-height: 1.6;
}

.policy-topics {
    list-style: none;
    padding: 0;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 0.75rem;
    margin-top: 1.5rem;
}

.policy-topics li,
.policy-suggestion-btn {
    background: white;
    padding: 1rem;
    border-radius: 8px;
    box-shadow: 0 1px 3px rgba(0,0,0,0.1);
    color: #475569;
    font-weight: 500;
    transition: transform 0.2s, box-shadow 0.2s;
    cursor: pointer;
    font-size: inherit;
    font-family: inherit;
    width: 100%;
    display: block;
    text-align: center;
    border: 1px solid #e2e8f0;
}

.policy-topics li:hover,
.policy-suggestion-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
    background: #f8fafc;
}

.policy-suggestion-btn:focus {
    outline: 2px solid #667eea;
    outline-offset: 2px;
}

.policy-suggestion-btn:active {
    transform: translateY(0px);
    box-shadow: 0 2px 6px rgba(0,0,0,0.1);
}

.message {
    margin-bottom: 1.5rem;
    animation: fadeInUp 0.3s ease-out;
}

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

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

.message-content {
    max-width: 70%;
    padding: 1rem 1.25rem;
    border-radius: 18px;
    position: relative;
}

.message-user .message-content {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border-bottom-right-radius: 4px;
}

.message-assistant .message-content {
    background: white;
    color: #1e293b;
    border: 1px solid #e2e8f0;
    border-bottom-left-radius: 4px;
    box-shadow: 0 1px 3px rgba(0,0,0,0.1);
}

.message-text {
    line-height: 1.6;
    margin-bottom: 0;
    text-align: left;
}

/* Rich text formatting for assistant messages */

.message-text h1 {
    font-size: 1.5rem;
    font-weight: 700;
    color: #1e293b;
    margin: 1.25rem 0 0.75rem 0;
    line-height: 1.3;
}

.message-text h1:first-child {
    margin-top: 0;
}

.message-text h2 {
    font-size: 1.25rem;
    font-weight: 600;
    color: #1e293b;
    margin: 1rem 0 0.5rem 0;
    line-height: 1.3;
}

.message-text h2:first-child {
    margin-top: 0;
}

.message-text h3 {
    font-size: 1.125rem;
    font-weight: 600;
    color: #334155;
    margin: 0.75rem 0 0.5rem 0;
    line-height: 1.3;
}

.message-text h3:first-child {
    margin-top: 0;
}

.message-text p {
    margin: 0.75rem 0;
    color: #1e293b;
    line-height: 1.6;
}

.message-text p:first-child {
    margin-top: 0;
}

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

.message-text ul,
.message-text ol {
    margin: 0.75rem 0;
    padding-left: 1.5rem;
    color: #1e293b;
}

.message-text ul:first-child,
.message-text ol:first-child {
    margin-top: 0;
}

.message-text ul:last-child,
.message-text ol:last-child {
    margin-bottom: 0;
}

.message-text li {
    margin: 0.25rem 0;
    line-height: 1.5;
}

.message-text ul li {
    list-style-type: disc;
}

.message-text ol li {
    list-style-type: decimal;
}

.message-text strong {
    font-weight: 600;
    color: #0f172a;
}

.message-text em {
    font-style: italic;
    color: #334155;
}

.message-sources {
    margin-top: 1rem;
    padding-top: 1rem;
    border-top: 1px solid #e2e8f0;
}

.sources-header {
    font-size: 0.875rem;
    font-weight: 600;
    color: #64748b;
    margin-bottom: 0.5rem;
}

.source-citation {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem;
    background: #f1f5f9;
    border-radius: 6px;
    margin-bottom: 0.5rem;
    font-size: 0.875rem;
}

.source-icon {
    width: 16px;
    height: 16px;
    color: #64748b;
}

.confidence-score {
    margin-top: 0.75rem;
    padding: 0.5rem;
    background: #f8fafc;
    border-radius: 6px;
    font-size: 0.875rem;
    color: #64748b;
}

.confidence-bar {
    height: 4px;
    background: #e2e8f0;
    border-radius: 2px;
    margin-top: 0.25rem;
    overflow: hidden;
}

.confidence-fill {
    height: 100%;
    background: linear-gradient(90deg, #ef4444 0%, #f59e0b 50%, #10b981 100%);
    border-radius: 2px;
    transition: width 0.3s ease;
}

.message-feedback {
    display: flex;
    gap: 0.75rem;
    margin-top: 1rem;
    padding-top: 0.75rem;
    border-top: 1px solid #e2e8f0;
}

.feedback-btn {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    background: #f8fafc;
    border: 1px solid #e2e8f0;
    border-radius: 20px;
    padding: 0.5rem 0.75rem;
    color: #64748b;
    font-size: 0.875rem;
    cursor: pointer;
    transition: all 0.2s;
}

.feedback-btn:hover {
    background: #f1f5f9;
    transform: translateY(-1px);
    box-shadow: 0 2px 4px rgba(0,0,0,0.05);
}

.feedback-btn svg {
    color: #94a3b8;
}

.feedback-thanks {
    color: #10b981;
    font-size: 0.875rem;
    font-style: italic;
    padding: 0.5rem 0;
}

.feedback-form {
    width: 100%;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.feedback-form p {
    margin: 0;
    font-size: 0.875rem;
    color: #64748b;
}

.feedback-select, .feedback-textarea {
    padding: 0.75rem;
    border: 1px solid #e2e8f0;
    border-radius: 6px;
    background: white;
    font-family: inherit;
    font-size: 0.875rem;
    color: #1e293b;
    width: 100%;
}

.feedback-textarea {
    resize: vertical;
    min-height: 80px;
}

.feedback-actions {
    display: flex;
    justify-content: flex-end;
}

.feedback-actions .primary-button {
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
}

.input-container {
    padding: 1.5rem 2rem;
    background: white;
    border-top: 1px solid #e2e8f0;
}

.chat-form {
    max-width: 800px;
    margin: 0 auto;
}

.input-wrapper {
    display: flex;
    align-items: flex-end;
    gap: 0.75rem;
    background: #f8fafc;
    border: 2px solid #e2e8f0;
    border-radius: 12px;
    padding: 0.75rem;
    transition: border-color 0.2s;
}

.input-wrapper:focus-within {
    border-color: #667eea;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

#messageInput {
    flex: 1;
    border: none;
    background: transparent;
    resize: none;
    font-family: 'Inter', sans-serif;
    font-size: 1rem;
    line-height: 1.5;
    min-height: 20px;
    max-height: 120px;
    padding: 0;
    outline: none;
    color: #1e293b;
}

#messageInput::placeholder {
    color: #94a3b8;
}

.send-button {
    background: #667eea;
    color: white;
    border: none;
    border-radius: 8px;
    padding: 0.75rem;
    cursor: pointer;
    transition: all 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 44px;
}

.send-button:hover:not(:disabled) {
    background: #5a67d8;
    transform: translateY(-1px);
}

.send-button:disabled {
    background: #cbd5e1;
    cursor: not-allowed;
    transform: none;
}

.input-options {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 0.75rem;
    font-size: 0.875rem;
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
    color: #64748b;
    user-select: none;
}

.checkbox-label input[type="checkbox"] {
    display: none;
}

.checkmark {
    width: 18px;
    height: 18px;
    border: 2px solid #cbd5e1;
    border-radius: 4px;
    position: relative;
    transition: all 0.2s;
}

.checkbox-label input[type="checkbox"]:checked + .checkmark {
    background: #667eea;
    border-color: #667eea;
}

.checkbox-label input[type="checkbox"]:checked + .checkmark::after {
    content: '';
    position: absolute;
    left: 5px;
    top: 2px;
    width: 4px;
    height: 8px;
    border: solid white;
    border-width: 0 2px 2px 0;
    transform: rotate(45deg);
}

.char-counter {
    color: #94a3b8;
    font-size: 0.8rem;
}

.char-counter.warning {
    color: #f59e0b;
}

.char-counter.error {
    color: #ef4444;
}

.chat-footer {
    padding: 1rem 2rem;
    background: #f8fafc;
    border-top: 1px solid #e2e8f0;
    text-align: center;
    font-size: 0.875rem;
    color: #64748b;
}

.chat-footer a {
    color: #667eea;
    text-decoration: none;
}

.chat-footer a:hover {
    text-decoration: underline;
}

.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(255,255,255,0.9);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    backdrop-filter: blur(4px);
}

.loading-overlay.hidden {
    display: none;
}

.loading-spinner {
    width: 40px;
    height: 40px;
    border: 4px solid #e2e8f0;
    border-top: 4px solid #667eea;
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-bottom: 1rem;
}

.loading-overlay p {
    color: #64748b;
    font-size: 1.125rem;
    margin: 0;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

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

/* Error message styles */
.error-message {
    background: #fef2f2;
    border: 1px solid #fecaca;
    color: #dc2626;
    padding: 1rem;
    border-radius: 8px;
    margin: 1rem 0;
}

.error-message strong {
    display: block;
    margin-bottom: 0.5rem;
}

/* Responsive design */
@media (max-width: 768px) {
    .chat-header {
        padding: 1rem;
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }

    .header-content h1 {
        font-size: 1.5rem;
    }

    .messages-container {
        padding: 1rem;
    }

    .welcome-message {
        padding: 2rem 1rem;
    }

    .policy-topics {
        grid-template-columns: 1fr;
    }

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

    .input-container {
        padding: 1rem;
    }

    .input-options {
        flex-direction: column;
        gap: 0.5rem;
        align-items: flex-start;
    }
}

/* Side Panel */
.side-panel {
    position: fixed;
    top: 0;
    right: -400px;
    width: 350px;
    max-width: 90vw;
    height: 100vh;
    background: white;
    box-shadow: -2px 0 10px rgba(0, 0, 0, 0.1);
    z-index: 100;
    transition: right 0.3s ease;
    display: flex;
    flex-direction: column;
}

.side-panel.show {
    right: 0;
}

.panel-header {
    padding: 1.5rem;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.panel-header h3 {
    margin: 0;
    font-size: 1.25rem;
    font-weight: 600;
}

.panel-body {
    flex: 1;
    overflow-y: auto;
    padding: 1rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.panel-actions {
    padding: 0.5rem 0;
    border-bottom: 1px solid #e2e8f0;
    margin-bottom: 1rem;
}

.icon-button {
    background: transparent;
    border: none;
    color: currentColor;
    cursor: pointer;
    padding: 0.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: background-color 0.2s;
}

.icon-button:hover {
    background-color: rgba(255, 255, 255, 0.2);
}

.icon-button.small {
    padding: 0.25rem;
}

.primary-button {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    background: #667eea;
    color: white;
    border: none;
    padding: 0.75rem 1rem;
    border-radius: 8px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
}

.primary-button:hover {
    background: #5a67d8;
    transform: translateY(-1px);
}

.conversation-list {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    flex: 1;
}

.conversation-item {
    padding: 0.75rem;
    background: #f8fafc;
    border-radius: 8px;
    border: 1px solid #e2e8f0;
    cursor: pointer;
    transition: all 0.2s;
    position: relative;
}

.conversation-item.active {
    background: rgba(102, 126, 234, 0.1);
    border-color: #667eea;
}

.conversation-item:hover {
    background: #f1f5f9;
    transform: translateY(-1px);
}

.conversation-item h4 {
    margin: 0 0 0.5rem 0;
    font-size: 1rem;
    font-weight: 600;
    color: #1e293b;
}

.conversation-meta {
    font-size: 0.8rem;
    color: #64748b;
}

.conversation-actions {
    position: absolute;
    top: 0.75rem;
    right: 0.75rem;
    opacity: 0;
    transition: opacity 0.2s;
}

.conversation-item:hover .conversation-actions {
    opacity: 1;
}

.empty-state {
    text-align: center;
    padding: 2rem 1rem;
    color: #64748b;
}

@media (max-width: 480px) {
    .welcome-message h2 {
        font-size: 1.5rem;
    }

    .welcome-message p {
        font-size: 1rem;
    }

    .message-content {
        max-width: 95%;
    }
}