/* Global Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #2563eb;
    --secondary-color: #1e40af;
    --accent-color: #f59e0b;
    --success-color: #10b981;
    --error-color: #ef4444;
    --bg-color: #f8fafc;
    --card-bg: #ffffff;
    --border-color: #e2e8f0;
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Helvetica Neue', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-primary);
    line-height: 1.6;
}

/* Container Layout */
.container {
    display: flex;
    height: 100vh;
    overflow: hidden;
}

.container.hidden {
    display: none !important;
}

/* Sidebar */
.sidebar {
    width: 260px;
    background-color: var(--card-bg);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    padding: 20px;
    box-shadow: var(--shadow);
    overflow-y: auto;
}

.logo-section {
    margin-bottom: 30px;
    border-bottom: 2px solid var(--border-color);
    padding-bottom: 20px;
}

.logo-section h1 {
    font-size: 20px;
    margin-bottom: 5px;
    color: var(--primary-color);
}

.logo-section p {
    font-size: 12px;
    color: var(--text-secondary);
}

.nav-menu {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-bottom: 20px;
}

.nav-btn {
    padding: 12px 15px;
    border: none;
    background-color: transparent;
    color: var(--text-secondary);
    cursor: pointer;
    border-radius: 8px;
    text-align: left;
    font-size: 14px;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 500;
}

.nav-btn:hover {
    background-color: var(--bg-color);
    color: var(--text-primary);
}

.nav-btn.active {
    background-color: var(--primary-color);
    color: white;
}

.nav-btn span {
    font-size: 16px;
}

.sidebar-actions {
    display: flex;
    flex-direction: column;
    gap: 10px;
    border-top: 1px solid var(--border-color);
    padding-top: 15px;
}

/* Main Content */
.main-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.section {
    display: none;
    flex: 1;
    overflow-y: auto;
    padding: 20px;
}

.section.active {
    display: flex;
}

/* Chat Section */
#chatSection {
    flex-direction: column;
}

.chat-container {
    display: flex;
    flex-direction: column;
    height: 100%;
    gap: 15px;
}

.chat-messages {
    flex: 1;
    overflow-y: auto;
    padding: 20px;
    background-color: var(--card-bg);
    border-radius: 12px;
    border: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.message {
    display: flex;
    flex-direction: column;
    gap: 10px;
    animation: slideIn 0.3s ease;
    margin-bottom: 15px;
}

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

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

.message.assistant {
    align-items: flex-start;
    width: 100%;
}

.message.system {
    justify-content: center;
}

.message-content {
    max-width: 100%;
    padding: 14px 18px;
    border-radius: 12px;
    word-wrap: break-word;
    line-height: 1.7;
    font-size: 14px;
    overflow-x: auto;
}

.message.user .message-content {
    background-color: var(--primary-color);
    color: white;
    border-bottom-right-radius: 4px;
    width: fit-content;
    max-width: 80%;
}

.message.assistant .message-content {
    background-color: var(--bg-color);
    color: var(--text-primary);
    border-bottom-left-radius: 4px;
    border: 1px solid var(--border-color);
    width: 100%;
}

.message.assistant .message-content strong {
    color: var(--primary-color);
    font-weight: 600;
}

.message.system {
    width: 100%;
}

.message.system .message-content {
    background-color: transparent;
    color: var(--text-secondary);
    font-style: italic;
    font-size: 13px;
}

/* Add proper spacing for divs inside message-content */
.message.assistant .message-content > div {
    line-height: 1.7;
    margin-bottom: 0;
}

/* Ensure lists display properly */
.message.assistant .message-content li {
    list-style: none;
}

.chat-input-area {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.input-wrapper {
    display: flex;
    gap: 10px;
}

.input-wrapper input {
    flex: 1;
    padding: 12px 16px;
    border: 1px solid var(--border-color);
    border-radius: 12px;
    font-size: 14px;
    transition: all 0.3s ease;
}

.input-wrapper input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.info-text {
    font-size: 12px;
    color: var(--text-secondary);
    text-align: right;
}

/* Buttons */
.btn-primary,
.btn-secondary {
    padding: 10px 16px;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 500;
    transition: all 0.3s ease;
    white-space: nowrap;
}

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

.btn-primary:hover {
    background-color: var(--secondary-color);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-primary:active {
    transform: translateY(0);
}

.btn-secondary {
    background-color: var(--bg-color);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.btn-secondary:hover {
    background-color: var(--border-color);
}

/* Search Section */
.search-container {
    max-width: 900px;
    margin: 0 auto;
    width: 100%;
}

.search-container h2 {
    margin-bottom: 20px;
    color: var(--primary-color);
}

.search-box {
    display: flex;
    gap: 10px;
    margin-bottom: 30px;
}

.search-box input {
    flex: 1;
    padding: 12px 16px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-size: 14px;
}

.search-results {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.search-result-item {
    background-color: var(--card-bg);
    padding: 15px;
    border-radius: 8px;
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
}

.search-result-item:hover {
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-color);
}

.result-content {
    color: var(--text-primary);
    line-height: 1.6;
    margin-bottom: 10px;
}

.result-meta {
    font-size: 12px;
    color: var(--text-secondary);
}

/* Knowledge Base Info Section */
.kb-info-container {
    max-width: 1000px;
    margin: 0 auto;
    width: 100%;
}

.kb-info-container h2 {
    margin-bottom: 30px;
    color: var(--primary-color);
}

.info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.info-card {
    background-color: var(--card-bg);
    padding: 20px;
    border-radius: 12px;
    border: 1px solid var(--border-color);
    text-align: center;
    box-shadow: var(--shadow);
}

.info-card h3 {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 10px;
    font-weight: 500;
}

.stat-number {
    font-size: 32px;
    font-weight: bold;
    color: var(--primary-color);
}

.stat-text {
    font-size: 16px;
    color: var(--text-primary);
    font-weight: 500;
}

.kb-actions {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

/* Settings Section */
.settings-container {
    max-width: 700px;
    margin: 0 auto;
    width: 100%;
}

.settings-container h2 {
    margin-bottom: 30px;
    color: var(--primary-color);
}

.settings-group {
    background-color: var(--card-bg);
    padding: 20px;
    border-radius: 8px;
    margin-bottom: 20px;
    border: 1px solid var(--border-color);
}

.settings-group h3 {
    margin-bottom: 15px;
    color: var(--text-primary);
    font-size: 16px;
}

.setting-item {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-bottom: 15px;
}

.setting-item:last-child {
    margin-bottom: 0;
}

.setting-item label {
    font-size: 14px;
    color: var(--text-secondary);
    font-weight: 500;
}

.input-field {
    padding: 10px 12px;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    font-size: 14px;
    transition: all 0.3s ease;
}

.input-field:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

/* Loading and Status */
.loading {
    display: inline-block;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background-color: var(--primary-color);
    animation: blink 1s infinite;
}

@keyframes blink {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.3; }
}

/* Chat Loading Spinner */
.loading-spinner {
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.spinner {
    width: 24px;
    height: 24px;
    border: 3px solid rgba(37, 99, 235, 0.2);
    border-top-color: var(--primary-color);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.status-badge {
    display: inline-block;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
}

.status-badge.success {
    background-color: rgba(16, 185, 129, 0.1);
    color: var(--success-color);
}

.status-badge.error {
    background-color: rgba(239, 68, 68, 0.1);
    color: var(--error-color);
}

/* Responsive Design */
@media (max-width: 768px) {
    .container {
        flex-direction: column;
    }

    .sidebar {
        width: 100%;
        height: auto;
        border-right: none;
        border-bottom: 1px solid var(--border-color);
        flex-direction: row;
        align-items: center;
        padding: 15px;
    }

    .logo-section {
        margin-bottom: 0;
        border-bottom: none;
        border-right: 1px solid var(--border-color);
        padding: 0 15px 0 0;
        margin-right: 15px;
    }

    .nav-menu {
        flex-direction: row;
        margin-bottom: 0;
        flex: 1;
        gap: 5px;
    }

    .nav-btn {
        padding: 8px 12px;
        font-size: 12px;
    }

    .sidebar-actions {
        flex-direction: row;
        border-top: none;
        border-left: 1px solid var(--border-color);
        padding: 0 0 0 15px;
        margin-left: 15px;
    }

    .message p {
        max-width: 90%;
    }

    .info-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}


/* Markdown & HTML Elements Styling in Messages */
.message.assistant h1,
.message.assistant h2,
.message.assistant h3,
.message.assistant h4,
.message.assistant h5,
.message.assistant h6 {
    margin-top: 16px;
    margin-bottom: 10px;
    font-weight: 700;
    color: var(--text-primary);
}

.message.assistant h1 { font-size: 24px; }
.message.assistant h2 { font-size: 20px; }
.message.assistant h3 { font-size: 18px; }
.message.assistant h4 { font-size: 16px; }
.message.assistant h5 { font-size: 14px; }
.message.assistant h6 { font-size: 13px; }

.message.assistant p {
    margin: 8px 0;
    line-height: 1.7;
}

.message.assistant strong {
    color: var(--primary-color);
    font-weight: 700;
}

.message.assistant em {
    font-style: italic;
    color: var(--text-secondary);
}

.message.assistant u {
    text-decoration: underline;
    text-decoration-color: var(--primary-color);
    text-decoration-thickness: 2px;
    text-underline-offset: 2px;
}

/* Lists */
.message.assistant ul,
.message.assistant ol {
    margin: 10px 0;
    padding-left: 20px;
}

.message.assistant ul {
    list-style: none;
}

.message.assistant ul li::before {
    content: "• ";
    color: var(--primary-color);
    font-weight: bold;
    margin-right: 8px;
}

.message.assistant ol {
    list-style-position: outside;
}

.message.assistant ol li {
    margin: 6px 0;
}

.message.assistant li {
    margin: 6px 0;
    line-height: 1.6;
}

.message.assistant li > ol,
.message.assistant li > ul {
    margin: 6px 0 6px 20px;
}

.message.assistant li > ol li::before,
.message.assistant li > ul li::before {
    margin-left: 0;
}

/* Horizontal Rules */
.message.assistant hr {
    margin: 16px 0;
    border: none;
    border-top: 2px solid var(--border-color);
    opacity: 0.5;
}

/* Code */
.message.assistant code {
    background-color: rgba(37, 99, 235, 0.08);
    color: var(--primary-color);
    padding: 2px 6px;
    border-radius: 4px;
    font-family: 'Courier New', monospace;
    font-size: 13px;
}

.message.assistant pre {
    background-color: var(--bg-color);
    border: 1px solid var(--border-color);
    padding: 12px;
    border-radius: 6px;
    overflow-x: auto;
    margin: 10px 0;
}

.message.assistant pre code {
    background-color: transparent;
    padding: 0;
    color: var(--text-primary);
}

/* Links */
.message.assistant a {
    color: var(--primary-color);
    text-decoration: none;
    border-bottom: 1px solid var(--primary-color);
    transition: all 0.3s ease;
}

.message.assistant a:hover {
    background-color: rgba(37, 99, 235, 0.1);
    padding: 0 4px;
    border-radius: 2px;
}

/* Scrollbar Styling */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: transparent;
}

::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--text-secondary);
}

/* User Info Modal Styles */
.modal {
    display: flex;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.modal.hidden {
    display: none;
}

.hidden {
    display: none !important;
}

.modal-content {
    background-color: var(--card-bg);
    padding: 40px;
    border-radius: 12px;
    box-shadow: var(--shadow-lg);
    max-width: 450px;
    width: 100%;
    animation: slideDown 0.3s ease-out;
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.modal-header {
    text-align: center;
    margin-bottom: 30px;
}

.modal-header h2 {
    font-size: 24px;
    margin-bottom: 5px;
    color: var(--primary-color);
}

.modal-subtitle {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 10px;
}

.user-info-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.form-group label {
    font-weight: 600;
    color: var(--text-primary);
    font-size: 14px;
}

.required {
    color: var(--error-color);
}

.form-input {
    padding: 12px;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    font-size: 14px;
    font-family: inherit;
    transition: border-color 0.3s;
}

.form-input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.form-input.error {
    border-color: var(--error-color);
}

.error-message {
    font-size: 12px;
    color: var(--error-color);
    min-height: 16px;
}

.btn-start-chat {
    background: linear-gradient(135deg, #2563eb 0%, #1e40af 100%);
    color: white;
    padding: 14px 24px;
    border: none;
    border-radius: 6px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.2s, box-shadow 0.2s;
    margin-top: 10px;
}

.btn-start-chat:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 16px rgba(37, 99, 235, 0.3);
}

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

.btn-start-chat:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.modal-footer {
    text-align: center;
    margin-top: 20px;
    border-top: 1px solid var(--border-color);
    padding-top: 15px;
}

/* ========== MARKDOWN FORMATTING FOR CHAT RESPONSES ========== */

/* Assistant message markdown elements */
.message.assistant h1,
.message.assistant h2,
.message.assistant h3,
.message.assistant h4,
.message.assistant h5,
.message.assistant h6 {
    color: var(--primary-color);
    font-weight: 700;
    margin-top: 20px;
    margin-bottom: 12px;
    line-height: 1.4;
}

.message.assistant h1 {
    font-size: 24px;
    border-bottom: 2px solid var(--primary-color);
    padding-bottom: 8px;
}

.message.assistant h2 {
    font-size: 20px;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 6px;
}

.message.assistant h3 {
    font-size: 18px;
}

.message.assistant h4 {
    font-size: 16px;
}

/* Paragraph spacing */
.message.assistant p {
    margin-bottom: 12px;
    line-height: 1.8;
}

/* Lists - proper styling */
.message.assistant ul,
.message.assistant ol {
    margin: 12px 0;
    margin-left: 24px;
    line-height: 1.8;
}

.message.assistant ul li,
.message.assistant ol li {
    margin-bottom: 8px;
    list-style-position: outside;
}

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

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

/* Nested lists */
.message.assistant ul ul,
.message.assistant ol ol,
.message.assistant ul ol,
.message.assistant ol ul {
    margin-left: 32px;
    margin-top: 6px;
    margin-bottom: 6px;
}

/* Code blocks */
.message.assistant code {
    background-color: #f1f5f9;
    color: #d63384;
    padding: 2px 6px;
    border-radius: 4px;
    font-family: 'Monaco', 'Courier New', monospace;
    font-size: 13px;
}

.message.assistant pre {
    background-color: #1e293b;
    color: #e2e8f0;
    padding: 14px;
    border-radius: 8px;
    overflow-x: auto;
    margin: 12px 0;
    line-height: 1.5;
    font-size: 12px;
    border-left: 3px solid var(--primary-color);
}

.message.assistant pre code {
    background-color: transparent;
    color: inherit;
    padding: 0;
    border-radius: 0;
}

/* Blockquotes */
.message.assistant blockquote {
    border-left: 4px solid var(--primary-color);
    padding-left: 12px;
    margin: 12px 0;
    color: var(--text-secondary);
    font-style: italic;
}

/* Horizontal rules */
.message.assistant hr {
    border: none;
    border-top: 2px solid var(--border-color);
    margin: 20px 0;
}

/* Tables */
.message.assistant table {
    border-collapse: collapse;
    width: 100%;
    margin: 12px 0;
}

.message.assistant table td,
.message.assistant table th {
    border: 1px solid var(--border-color);
    padding: 10px;
    text-align: left;
}

.message.assistant table th {
    background-color: #f1f5f9;
    font-weight: 600;
    color: var(--primary-color);
}

.message.assistant table tr:nth-child(even) {
    background-color: #fafbfc;
}

/* Strong and emphasis */
.message.assistant strong {
    font-weight: 700;
    color: var(--text-primary);
}

.message.assistant em {
    font-style: italic;
    color: var(--text-primary);
}

/* Links */
.message.assistant a {
    color: var(--primary-color);
    text-decoration: none;
    border-bottom: 1px solid var(--primary-color);
    transition: color 0.2s ease;
}

.message.assistant a:hover {
    color: var(--secondary-color);
}

/* Emoji support */
.message.assistant img[alt] {
    max-width: 20px;
    height: auto;
    display: inline;
    margin: 0 2px;
}

/* Print Styles */
@media print {
    .sidebar,
    .chat-input-area,
    .sidebar-actions {
        display: none;
    }
}