/* DataBot Styles */

:root {
    --bg-primary: #000000;
    --bg-secondary: #0a0a0a;
    --bg-tertiary: #1a1a1a;
    --text-primary: #ffffff;
    --text-secondary: #888888;
    --accent: #ffffff;
    --accent-hover: #cccccc;
    --success: #ffffff;
    --border: #333333;
    --message-user: #1a1a1a;
    --message-assistant: #000000;
}

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

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

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

/* Auth Pages */
.auth-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.auth-box {
    background: var(--bg-secondary);
    padding: 40px;
    border-radius: 12px;
    width: 100%;
    max-width: 400px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
}

.auth-box h1 {
    font-size: 2rem;
    margin-bottom: 8px;
    color: var(--accent);
}

.auth-box .subtitle {
    color: var(--text-secondary);
    margin-bottom: 30px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
}

.form-group input {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid var(--border);
    border-radius: 8px;
    background: var(--bg-primary);
    color: var(--text-primary);
    font-size: 1rem;
}

.form-group input:focus {
    outline: none;
    border-color: var(--accent);
}

.btn-primary {
    width: 100%;
    padding: 14px;
    background: var(--accent);
    color: #000000;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.2s;
}

.btn-primary:hover {
    background: var(--accent-hover);
}

.auth-switch {
    text-align: center;
    margin-top: 20px;
    color: var(--text-secondary);
}

.auth-switch a {
    color: var(--accent);
    text-decoration: none;
}

.error-message {
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid var(--border);
    color: var(--text-primary);
    padding: 12px;
    border-radius: 8px;
    margin-bottom: 20px;
}

/* Chat Layout */
.app-container {
    display: flex;
    height: 100vh;
}

/* Sidebar */
.sidebar {
    width: 280px;
    background: var(--bg-secondary);
    display: flex;
    flex-direction: column;
    border-right: 1px solid var(--border);
}

.sidebar-header {
    padding: 20px;
    border-bottom: 1px solid var(--border);
}

.sidebar-header h2 {
    font-size: 1.25rem;
    margin-bottom: 15px;
    color: var(--accent);
}

.btn-new-chat {
    width: 100%;
    padding: 10px;
    background: var(--bg-tertiary);
    color: var(--text-primary);
    border: 1px solid var(--border);
    border-radius: 8px;
    cursor: pointer;
    font-size: 0.9rem;
    transition: background 0.2s;
}

.btn-new-chat:hover {
    background: var(--accent);
}

.conversations-list {
    flex: 1;
    overflow-y: auto;
    overflow-x: hidden;
    padding: 10px;
    background: var(--bg-primary);
}

/* Scrollbar styling */
.conversations-list::-webkit-scrollbar {
    width: 8px;
}

.conversations-list::-webkit-scrollbar-track {
    background: var(--bg-primary);
}

.conversations-list::-webkit-scrollbar-thumb {
    background: var(--text-primary);
    border-radius: 4px;
}

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

/* Conversation item wrapper for delete button */
.conversation-item-wrapper {
    display: flex;
    align-items: center;
    margin-bottom: 4px;
    overflow: hidden;
}

.conversation-item-wrapper .conversation-item {
    flex: 1;
    min-width: 0;
    margin-bottom: 0;
}

.delete-chat-btn {
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 1.2rem;
    cursor: pointer;
    padding: 4px 8px;
    opacity: 0;
    transition: opacity 0.2s, color 0.2s;
}

.conversation-item-wrapper:hover .delete-chat-btn {
    opacity: 1;
}

.delete-chat-btn:hover {
    color: var(--text-primary);
}

.conversation-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px;
    border-radius: 8px;
    color: var(--text-primary);
    text-decoration: none;
    margin-bottom: 4px;
    transition: background 0.2s;
    overflow: hidden;
}

.conversation-item:hover {
    background: var(--bg-tertiary);
}

.conversation-item.active {
    background: var(--bg-tertiary);
    border-left: 3px solid var(--accent);
}

.conv-title {
    flex: 1;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    font-size: 0.9rem;
}

.conv-date {
    font-size: 0.75rem;
    color: var(--text-secondary);
    margin-left: 10px;
}

.sidebar-footer {
    padding: 15px 20px;
    border-top: 1px solid var(--border);
}

.user-info {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 10px;
    font-size: 0.9rem;
}

.admin-badge {
    background: var(--accent);
    color: #000000;
    padding: 2px 8px;
    border-radius: 4px;
    font-size: 0.7rem;
    font-weight: 600;
}

.btn-admin {
    display: block;
    color: var(--accent);
    text-decoration: none;
    font-size: 0.85rem;
    margin-bottom: 8px;
}

.btn-admin:hover {
    text-decoration: underline;
}

.btn-logout {
    display: block;
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.85rem;
}

.btn-logout:hover {
    color: var(--accent);
}

/* Chat Main */
.chat-main {
    flex: 1;
    display: flex;
    flex-direction: column;
    background: var(--bg-primary);
}

.messages-container {
    flex: 1;
    overflow-y: auto;
    padding: 20px;
}

.welcome-message {
    max-width: 600px;
    margin: 100px auto;
    text-align: center;
}

.welcome-message h2 {
    font-size: 1.5rem;
    margin-bottom: 20px;
}

.welcome-message p {
    color: var(--text-secondary);
    margin-bottom: 20px;
}

.welcome-message ul {
    list-style: none;
    text-align: left;
    background: var(--bg-secondary);
    padding: 20px 30px;
    border-radius: 12px;
}

.welcome-message li {
    padding: 8px 0;
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.welcome-message li::before {
    content: "→ ";
    color: var(--accent);
}

/* Messages */
.message {
    max-width: 800px;
    margin: 0 auto 20px;
    padding: 16px 20px;
    border-radius: 12px;
}

.message.user {
    background: var(--message-user);
    margin-left: 100px;
}

.message.assistant {
    background: var(--message-assistant);
    border: 1px solid var(--border);
}

.message-content {
    white-space: pre-wrap;
    word-wrap: break-word;
}

.message-content code {
    background: var(--bg-tertiary);
    padding: 2px 6px;
    border-radius: 4px;
    font-family: 'Monaco', 'Menlo', monospace;
    font-size: 0.9em;
}

.message-content pre {
    background: var(--bg-tertiary);
    padding: 16px;
    border-radius: 8px;
    overflow-x: auto;
    margin: 10px 0;
}

.message-content pre code {
    background: none;
    padding: 0;
}

.loading {
    color: var(--text-secondary);
    animation: pulse 1.5s infinite;
}

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

/* Input */
.input-container {
    padding: 20px;
    border-top: 1px solid var(--border);
    background: var(--bg-secondary);
}

.input-wrapper {
    max-width: 800px;
    margin: 0 auto;
    display: flex;
    gap: 10px;
    align-items: center;
}

#message-input {
    flex: 1;
    padding: 14px 18px;
    border: 1px solid var(--border);
    border-radius: 12px;
    background: var(--bg-primary);
    color: var(--text-primary);
    font-size: 1rem;
    resize: none;
    min-height: 52px;
    max-height: 200px;
    font-family: inherit;
}

#message-input:focus {
    outline: none;
    border-color: var(--accent);
}

#send-btn {
    width: 40px;
    height: 40px;
    border: none;
    border-radius: 50%;
    background: var(--accent);
    color: #000000;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.2s;
    flex-shrink: 0;
}

#send-btn:hover {
    background: var(--accent-hover);
}

#send-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

#send-btn svg {
    width: 18px;
    height: 18px;
    stroke: #000000;
}

/* Tool Selection Buttons (Desktop) */
.tool-buttons-container {
    max-width: 800px;
    margin: 12px auto 0;
    display: flex;
    gap: 8px;
    justify-content: flex-start;
    flex-wrap: wrap;
}

.tool-btn {
    padding: 6px 14px;
    background: transparent;
    color: var(--text-secondary);
    border: 1px solid var(--border);
    border-radius: 16px;
    cursor: pointer;
    font-size: 0.8rem;
    transition: all 0.2s;
}

.tool-btn:hover {
    color: var(--text-primary);
    border-color: var(--text-secondary);
}

.tool-btn.selected {
    background: var(--accent);
    color: #000000;
    border-color: var(--accent);
}

/* Mobile Tool Button */
.mobile-tool-btn {
    display: none;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--bg-tertiary);
    color: var(--text-primary);
    border: 1px solid var(--border);
    font-size: 1.4rem;
    cursor: pointer;
    flex-shrink: 0;
    transition: all 0.2s;
    line-height: 1;
}

.mobile-tool-btn:hover {
    border-color: var(--text-secondary);
}

.mobile-tool-btn.has-selection {
    background: var(--accent);
    color: #000000;
    border-color: var(--accent);
}

/* Mobile Tool Popup */
.mobile-tool-popup {
    display: none;
    position: absolute;
    bottom: 100%;
    left: 0;
    margin-bottom: 8px;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 8px;
    flex-direction: column;
    gap: 4px;
    z-index: 50;
    min-width: 160px;
    box-shadow: 0 -4px 12px rgba(0, 0, 0, 0.3);
}

.mobile-tool-popup.open {
    display: flex;
}

.tool-option {
    padding: 10px 14px;
    background: transparent;
    color: var(--text-primary);
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-size: 0.9rem;
    text-align: left;
    transition: background 0.2s;
}

.tool-option:hover {
    background: var(--bg-tertiary);
}

.tool-option.selected {
    background: var(--accent);
    color: #000000;
}

/* CSV Download Button */
.csv-download-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    background: var(--success);
    color: var(--bg-primary);
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-size: 0.9rem;
    font-weight: 600;
    margin: 10px 0;
    transition: background 0.2s;
}

.csv-download-btn:hover {
    background: var(--accent-hover);
}

.csv-download-btn:disabled {
    opacity: 0.7;
    cursor: wait;
}

/* CSV Loading Spinner */
.csv-spinner {
    width: 14px;
    height: 14px;
    border: 2px solid var(--bg-primary);
    border-top-color: transparent;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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

/* Tables in messages */
.message-content .table-wrapper {
    overflow-x: auto;
    margin: 15px 0;
    max-width: 100%;
}

.message-content table {
    border-collapse: collapse;
    border-spacing: 0;
    margin: 0;
    min-width: 100%;
    font-size: 0.9rem;
    border: 1px solid var(--border);
}

.message-content table td {
    border: 1px solid var(--border);
    padding: 10px 14px;
    vertical-align: top;
}

.message-content table tr:first-child td {
    background: var(--bg-tertiary);
    font-weight: 600;
    white-space: nowrap;
}

.message-content table tr:nth-child(even):not(:first-child) {
    background: rgba(255,255,255,0.02);
}

/* Headers in messages */
.message-content h2,
.message-content h3,
.message-content h4 {
    margin: 15px 0 10px 0;
    color: var(--text-primary);
}

.message-content h2 { font-size: 1.3rem; }
.message-content h3 { font-size: 1.15rem; }
.message-content h4 { font-size: 1rem; }

/* Lists in messages */
.message-content ul,
.message-content ol {
    margin: 10px 0;
    padding-left: 30px;
    list-style-position: outside;
}

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

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

.message-content li {
    margin: 8px 0;
    padding-left: 8px;
}

/* Admin Panel */
.admin-container {
    max-width: 1000px;
    margin: 0 auto;
    padding: 40px 20px;
    overflow-x: hidden;
}

.admin-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
}

.admin-header h1 {
    color: var(--accent);
}

.btn-back {
    color: var(--text-secondary);
    text-decoration: none;
}

.btn-back:hover {
    color: var(--accent);
}

.admin-section {
    background: var(--bg-secondary);
    padding: 25px;
    border-radius: 12px;
    margin-bottom: 25px;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

.admin-section h2 {
    font-size: 1.1rem;
    margin-bottom: 20px;
    color: var(--text-primary);
}

.admin-table {
    width: 100%;
    min-width: 500px;
    border-collapse: collapse;
}

.admin-table th,
.admin-table td {
    padding: 12px;
    text-align: left;
    border-bottom: 1px solid var(--border);
}

.admin-table th {
    font-weight: 600;
    color: var(--text-secondary);
    font-size: 0.85rem;
    text-transform: uppercase;
}

.badge {
    display: inline-block;
    padding: 3px 8px;
    border-radius: 4px;
    font-size: 0.75rem;
    font-weight: 600;
}

.badge.admin {
    background: var(--accent);
    color: #000000;
}

.badge.user {
    background: var(--bg-tertiary);
    color: var(--text-secondary);
}

.btn-danger {
    background: #333333;
    color: white;
    border: 1px solid #666666;
    padding: 6px 12px;
    border-radius: 4px;
    cursor: pointer;
    font-size: 0.85rem;
}

.btn-danger:hover {
    background: #444444;
}

.btn-small {
    padding: 4px 8px;
    font-size: 0.8rem;
}

.add-user-form .form-row {
    display: flex;
    gap: 10px;
}

.add-user-form input {
    flex: 1;
    padding: 10px 14px;
    border: 1px solid var(--border);
    border-radius: 8px;
    background: var(--bg-primary);
    color: var(--text-primary);
}

.add-user-form .btn-primary {
    width: auto;
    padding: 10px 20px;
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 10px;
    cursor: pointer;
}

.checkbox-label input {
    width: 18px;
    height: 18px;
}

.success-message {
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid var(--border);
    color: var(--text-primary);
    padding: 12px;
    border-radius: 8px;
    margin-bottom: 20px;
}

.text-muted {
    color: var(--text-secondary);
}

/* Header Logo (top of sidebar) */
.header-logo-container {
    display: flex;
    justify-content: center;
    margin-bottom: 15px;
}

.header-logo {
    width: 200px;
    height: 200px;
    border-radius: 50%;
    object-fit: cover;
}

/* Bot Logo (legacy - kept for mobile welcome) */
.bot-logo {
    width: 150px;
    height: 150px;
    border-radius: 50%;
    object-fit: cover;
}

/* Mobile Bot Logo (in welcome area) */
.mobile-logo-container {
    display: none;
    justify-content: center;
    margin-bottom: 20px;
}

.mobile-logo-container .bot-logo {
    width: 300px;
    height: 300px;
}

/* Clickable Prompts */
.welcome-message li {
    padding: 8px 0;
    color: var(--text-secondary);
    font-size: 0.95rem;
    cursor: pointer;
    transition: color 0.2s;
}

.welcome-message li:hover {
    color: var(--text-primary);
}

/* Mobile Sidebar Toggle */
.mobile-header {
    display: none;
    padding: 15px 20px;
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border);
    align-items: center;
    justify-content: space-between;
}

.mobile-header h2 {
    font-size: 1.1rem;
    color: var(--accent);
}

.hamburger-btn {
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 1.5rem;
    cursor: pointer;
    padding: 5px;
}

.sidebar-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.7);
    z-index: 99;
}

.sidebar-overlay.active {
    display: block;
}

/* Mobile New Chat Button */
.mobile-new-chat-btn {
    display: none;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: var(--bg-tertiary);
    color: var(--text-primary);
    border: 1px solid var(--border);
    font-size: 1.5rem;
    cursor: pointer;
    line-height: 36px;
    text-align: center;
    padding: 0;
}

.mobile-new-chat-btn:hover {
    background: var(--accent);
    color: #000000;
}

/* Responsive */
@media (max-width: 768px) {
    .app-container {
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        overflow: hidden;
    }

    .sidebar {
        position: fixed;
        top: 0;
        left: -280px;
        height: 100%;
        z-index: 100;
        transition: left 0.3s ease;
    }

    .sidebar.open {
        left: 0;
        pointer-events: auto;
    }

    .mobile-header {
        display: flex;
        flex-shrink: 0;
    }

    .chat-main {
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        height: 100%;
        display: flex;
        flex-direction: column;
        overflow: hidden;
    }

    .messages-container {
        flex: 1;
        overflow-y: auto;
        overflow-x: hidden;
        -webkit-overflow-scrolling: touch;
    }

    .input-container {
        flex-shrink: 0;
        position: relative;
    }

    .input-wrapper {
        position: relative;
    }

    /* Show mobile tool button, hide desktop buttons */
    .mobile-tool-btn {
        display: flex;
        align-items: center;
        justify-content: center;
    }

    .tool-buttons-container {
        display: none;
    }

    .message.user {
        margin-left: 20px;
    }

    .add-user-form .form-row {
        flex-direction: column;
    }

    /* Hide desktop header logo on mobile */
    .header-logo-container {
        display: none;
    }

    /* Show mobile new chat button */
    .mobile-new-chat-btn {
        display: flex;
        align-items: center;
        justify-content: center;
    }

    /* Hide welcome text on mobile, just show logo */
    .welcome-message h2,
    .welcome-message > p,
    .welcome-message ul {
        display: none;
    }

    /* Show mobile logo */
    .mobile-logo-container {
        display: flex;
    }

    /* Hide placeholder on mobile */
    #message-input::placeholder {
        color: transparent;
    }

    /* Fix conversation items being unselectable */
    .conversation-item {
        pointer-events: auto;
        -webkit-tap-highlight-color: rgba(255,255,255,0.1);
    }

    .conversations-list {
        pointer-events: auto;
        -webkit-overflow-scrolling: touch;
    }
}