* { box-sizing: border-box; }
body { 
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; 
    margin: 0; 
    padding: 20px; 
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    position: relative;
    overflow-x: hidden;
}
.main-layout {
    display: flex;
    gap: 20px;
    max-width: 1400px;
    margin: 0 auto;
    min-height: 700px;
}
.features-sidebar {
    width: 320px;
    background: rgba(255,255,255,0.95);
    border-radius: 20px;
    padding: 25px;
    box-shadow: 0 20px 40px rgba(0,0,0,0.2);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255,255,255,0.2);
    /*height: fit-content;
    position: sticky;
    top: 20px; */
    min-height: 700px;
}
.sidebar-header {
    text-align: center;
    margin-bottom: 25px;
    padding-bottom: 20px;
    border-bottom: 2px solid #e0e0e0;
}
.sidebar-header h3 {
    margin: 0 0 8px 0;
    color: #333;
    font-size: 1.4rem;
    font-weight: 700;
}
.sidebar-header p {
    margin: 0;
    color: #666;
    font-size: 0.9rem;
    font-style: italic;
}
.feature-section {
    margin-bottom: 25px;
}
.feature-section h4 {
    margin: 0 0 15px 0;
    color: #333;
    font-size: 1.1rem;
    font-weight: 600;
    padding-bottom: 8px;
    border-bottom: 1px solid #f0f0f0;
}
.feature-item {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    margin-bottom: 15px;
    padding: 12px;
    background: rgba(102, 126, 234, 0.05);
    border-radius: 10px;
    transition: all 0.3s ease;
}
.feature-item:hover {
    background: rgba(102, 126, 234, 0.1);
    transform: translateX(5px);
}
.feature-icon {
    font-size: 1.5rem;
    flex-shrink: 0;
}
.feature-item strong {
    display: block;
    color: #333;
    font-size: 0.9rem;
    margin-bottom: 4px;
}
.feature-item p {
    margin: 0;
    color: #666;
    font-size: 0.8rem;
    line-height: 1.3;
}
.tech-stack {
    margin-top: 20px;
    padding-top: 20px;
    border-top: 2px solid #e0e0e0;
}
.tech-stack h4 {
    margin: 0 0 15px 0;
    color: #333;
    font-size: 1.1rem;
    font-weight: 600;
}
.tech-badges {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}
.tech-badge {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 6px 12px;
    border-radius: 15px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}
.activity-dashboard {
    width: 300px;
    background: rgba(255,255,255,0.95);
    border-radius: 20px;
    padding: 25px;
    box-shadow: 0 20px 40px rgba(0,0,0,0.2);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255,255,255,0.2);
    /*height: fit-content;
    position: sticky;
    top: 20px;*/
    min-height: 700px;
}
.dashboard-header {
    text-align: center;
    margin-bottom: 25px;
    padding-bottom: 20px;
    border-bottom: 2px solid #e0e0e0;
}
.dashboard-header h3 {
    margin: 0 0 12px 0;
    color: #333;
    font-size: 1.3rem;
    font-weight: 700;
}
.status-indicator {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    font-size: 0.85rem;
    color: #28a745;
    font-weight: 600;
}
.status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: #28a745;
    animation: pulse 2s infinite;
}
@keyframes pulse {
    0% { opacity: 1; }
    50% { opacity: 0.5; }
    100% { opacity: 1; }
}
.stats-section, .session-section, .system-section, .activity-section, .performance-section {
    margin-bottom: 25px;
}
.stats-section h4, .session-section h4, .system-section h4, .activity-section h4, .performance-section h4 {
    margin: 0 0 15px 0;
    color: #333;
    font-size: 1rem;
    font-weight: 600;
    padding-bottom: 8px;
    border-bottom: 1px solid #f0f0f0;
}
.stat-item {
    text-align: center;
    margin-bottom: 15px;
    padding: 15px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 12px;
    color: white;
}
.stat-value {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 5px;
}
.stat-label {
    font-size: 0.8rem;
    opacity: 0.9;
}
.session-item, .performance-metric {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 10px;
    padding: 8px 12px;
    background: rgba(102, 126, 234, 0.05);
    border-radius: 8px;
}
.session-label, .metric-label {
    font-size: 0.85rem;
    color: #666;
    font-weight: 500;
}
.session-value, .metric-value {
    font-size: 0.85rem;
    color: #333;
    font-weight: 600;
}
.metric-value.success {
    color: #28a745;
}
.system-item {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 12px;
    padding: 10px;
    background: rgba(102, 126, 234, 0.05);
    border-radius: 8px;
}
.system-icon {
    font-size: 1.2rem;
}
.system-info {
    flex: 1;
}
.system-name {
    font-size: 0.85rem;
    color: #333;
    font-weight: 600;
    margin-bottom: 2px;
}
.system-status {
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}
.system-status.online {
    color: #28a745;
}
.system-status.offline {
    color: #dc3545;
}
.activity-item {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 12px;
}
.activity-bar {
    flex: 1;
    height: 6px;
    background: #e0e0e0;
    border-radius: 3px;
    overflow: hidden;
}
.activity-fill {
    height: 100%;
    background: linear-gradient(135deg, #28a745 0%, #20c997 100%);
    border-radius: 3px;
    transition: width 0.3s ease;
}
.activity-label {
    font-size: 0.8rem;
    color: #666;
    min-width: 80px;
}
.activity-percent {
    font-size: 0.8rem;
    color: #333;
    font-weight: 600;
    min-width: 35px;
    text-align: right;
}
.background-animation {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    overflow: hidden;
}
.floating-shape {
    position: absolute;
    opacity: 0.1;
    animation: float 20s infinite linear;
}
.shape-1 {
    width: 80px;
    height: 80px;
    background: rgba(255,255,255,0.2);
    border-radius: 50%;
    top: 20%;
    left: 10%;
    animation-delay: 0s;
}
.shape-2 {
    width: 60px;
    height: 60px;
    background: rgba(255,255,255,0.15);
    border-radius: 20%;
    top: 60%;
    right: 15%;
    animation-delay: -5s;
}
.shape-3 {
    width: 100px;
    height: 100px;
    background: rgba(255,255,255,0.1);
    border-radius: 30%;
    top: 80%;
    left: 20%;
    animation-delay: -10s;
}
.shape-4 {
    width: 40px;
    height: 40px;
    background: rgba(255,255,255,0.25);
    border-radius: 50%;
    top: 30%;
    right: 30%;
    animation-delay: -15s;
}
.shape-5 {
    width: 120px;
    height: 120px;
    background: rgba(255,255,255,0.08);
    border-radius: 40%;
    top: 10%;
    right: 5%;
    animation-delay: -7s;
}
@keyframes float {
    0% {
        transform: translateY(0px) rotate(0deg);
        opacity: 0.1;
    }
    50% {
        opacity: 0.2;
    }
    100% {
        transform: translateY(-100vh) rotate(360deg);
        opacity: 0;
    }
}
.chat-container { 
    flex: 1;
    border-radius: 20px; 
    overflow: hidden; 
    box-shadow: 0 20px 40px rgba(0,0,0,0.2);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255,255,255,0.2);
    position: relative;
    z-index: 1;
}
.chat-container .logo-banner {
    background: #0B1320 !important;
    color: white;
    padding: 15px;
    text-align: center;
    border-radius: 20px 20px 0 0;
    overflow: hidden;
}

div.logo-banner {
    background-color: #0B1320 !important;
    background: #0B1320 !important;
}
.logo {
    display: inline-block;
    margin-bottom: 15px;
}
.robot-logo {
    font-size: 2.5rem;
    margin: 0 auto 10px;
    text-align: center;
    animation: bounce 2s infinite;
    display: block;
}
@keyframes bounce {
    0%, 20%, 50%, 80%, 100% { transform: translateY(0); }
    40% { transform: translateY(-10px); }
    60% { transform: translateY(-5px); }
}
.logo-text {
    color: white;
    text-align: center;
}
.logo-title {
    font-size: 2rem;
    font-weight: 900;
    letter-spacing: 2px;
    margin-bottom: 8px;
    font-family: 'Montserrat', 'Arial Black', sans-serif;
    background: linear-gradient(180deg, #00E8FF 0%, #00B8FF 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    filter: drop-shadow(0 0 15px rgba(0, 232, 255, 0.6));
}
.logo-subtitle {
    font-size: 0.75rem;
    font-weight: 300;
    letter-spacing: 1px;
    color: #66F0FF;
    font-family: 'Montserrat', 'Arial', sans-serif;
    text-transform: uppercase;
    opacity: 0.9;
}
.chat-header { 
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%); 
    color: white; 
    padding: 30px; 
    text-align: center;
    position: relative;
}
.chat-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(255,255,255,0.1);
    backdrop-filter: blur(10px);
}
.chat-header h1 {
    margin: 0;
    font-size: 28px;
    font-weight: 600;
    position: relative;
    z-index: 1;
}
.chat-messages { 
    height: 500px; 
    overflow-y: auto; 
    padding: 30px;
    background: rgba(255,255,255,0.95);
}
.message { 
    margin: 15px 0; 
    padding: 15px 20px; 
    border-radius: 18px; 
    max-width: 80%;
    word-wrap: break-word;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}
.user-message { 
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%); 
    color: white;
    margin-left: auto;
    margin-right: 0;
    border-bottom-right-radius: 5px;
}
.bot-message { 
    background: white; 
    color: #333;
    margin-left: 0;
    margin-right: auto;
    border: 1px solid #e0e0e0;
    border-bottom-left-radius: 5px;
}
.chat-input { 
    display: flex; 
    padding: 25px 30px; 
    border-top: 1px solid #e0e0e0;
    background: rgba(255,255,255,0.95);
    align-items: center;
    border-radius: 0 0 20px 20px;
}
.chat-input input { 
    flex: 1; 
    padding: 15px 20px; 
    border: 2px solid #e0e0e0; 
    border-radius: 25px; 
    margin-right: 15px;
    font-size: 16px;
    outline: none;
    transition: border-color 0.3s ease;
}
.chat-input input:focus {
    border-color: #667eea;
}
.chat-input button { 
    padding: 15px 25px; 
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%); 
    color: white; 
    border: none; 
    border-radius: 25px; 
    cursor: pointer; 
    margin-left: 8px;
    font-size: 16px;
    font-weight: 600;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.chat-input button:hover { 
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(102, 126, 234, 0.4);
}
.file-input { display: none; }
.file-button { 
    background: rgba(102, 126, 234, 0.1); 
    border: none; 
    padding: 12px; 
    cursor: pointer; 
    border-radius: 50%; 
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}
.file-button:hover { 
    background: rgba(102, 126, 234, 0.2);
    transform: scale(1.1);
}
.file-button svg { width: 24px; height: 24px; fill: #667eea; }
.file-button:hover svg { fill: #5a67d8; }
.upload-modal { 
    position: fixed; 
    top: 0; 
    left: 0; 
    width: 100%; 
    height: 100%; 
    background: rgba(0,0,0,0.6); 
    z-index: 9999;
    backdrop-filter: blur(5px);
}
.modal-content { 
    position: fixed; 
    top: 50%; 
    left: 50%; 
    transform: translate(-50%, -50%); 
    background: white; 
    padding: 30px; 
    border-radius: 20px; 
    width: 450px;
    max-width: 90vw;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: 0 20px 40px rgba(0,0,0,0.2);
    z-index: 10000;
}
.modal-content h3 { 
    margin-top: 0; 
    color: #333;
    font-size: 24px;
    font-weight: 600;
}
.modal-content textarea { 
    width: 100%; 
    margin: 15px 0; 
    padding: 15px; 
    border: 2px solid #e0e0e0; 
    border-radius: 10px; 
    resize: vertical;
    font-family: inherit;
    outline: none;
    transition: border-color 0.3s ease;
}
.modal-content textarea:focus {
    border-color: #667eea;
}
.modal-buttons { text-align: right; margin-top: 20px; }
.modal-buttons button { 
    margin-left: 15px; 
    padding: 12px 24px; 
    border: none; 
    border-radius: 25px; 
    cursor: pointer;
    font-weight: 600;
    transition: all 0.2s ease;
}
.modal-buttons button:first-child { 
    background: #f8f9fa; 
    color: #6c757d;
    border: 2px solid #e0e0e0;
}
.modal-buttons button:first-child:hover {
    background: #e9ecef;
}
.modal-buttons button:last-child { 
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%); 
    color: white;
}
.modal-buttons button:last-child:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(102, 126, 234, 0.4);
}
.processing-indicator { display: inline-block; margin-left: 10px; }
.spinner { 
    border: 3px solid rgba(102, 126, 234, 0.2); 
    border-top: 3px solid #667eea; 
    border-radius: 50%; 
    width: 20px; 
    height: 20px; 
    animation: spin 1s linear infinite; 
    display: inline-block;
}
@keyframes spin { 0% { transform: rotate(0deg); } 100% { transform: rotate(360deg); } }
.processing-message { 
    background: linear-gradient(135deg, #ffeaa7 0%, #fff3cd 100%); 
    border: 1px solid #f39c12; 
    color: #856404; 
    margin-left: 0;
    margin-right: auto;
    max-width: 80%;
    border-bottom-left-radius: 5px;
}
.mermaid-viewer { 
    background: #f8f9fa; 
    border: 1px solid #e0e0e0; 
    border-radius: 15px; 
    padding: 20px; 
    margin: 15px 0;
    box-shadow: 0 2px 8px rgba(0,0,0,0.05);
}
.mermaid-tabs {
    display: flex;
    border-bottom: 2px solid #e0e0e0;
    margin-bottom: 15px;
}
.mermaid-tab {
    background: transparent;
    border: none;
    padding: 10px 20px;
    cursor: pointer;
    font-weight: 600;
    color: #666;
    border-bottom: 3px solid transparent;
    transition: all 0.3s ease;
}
.mermaid-tab.active {
    color: #667eea;
    border-bottom-color: #667eea;
}
.mermaid-tab:hover {
    color: #667eea;
    background: rgba(102, 126, 234, 0.1);
}
.tab-content {
    display: none;
}
.tab-content.active {
    display: block;
}

.option-buttons {
    display: flex;
    gap: 10px;
    margin: 15px 0;
    flex-wrap: wrap;
}

.option-btn {
    padding: 10px 20px;
    border: none;
    border-radius: 20px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    background: linear-gradient(135deg, #28a745 0%, #20c997 100%);
    color: white;
}

.option-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(40, 167, 69, 0.4);
}

.option-btn.secondary {
    background: linear-gradient(135deg, #6c757d 0%, #495057 100%);
}

.option-btn.secondary:hover {
    box-shadow: 0 5px 15px rgba(108, 117, 125, 0.4);
}
.code-block { 
    background: #2d3748; 
    color: #e2e8f0; 
    padding: 15px; 
    border-radius: 10px; 
    overflow-x: auto; 
    font-family: 'Consolas', 'Monaco', 'Courier New', monospace; 
    font-size: 14px;
    line-height: 1.4;
    position: relative;
}
.code-block pre {
    margin: 0;
    white-space: pre;
    font-family: inherit;
    font-size: inherit;
    color: inherit;
    background: transparent;
}
.mermaid-preview {
    background: white;
    border: 1px solid #e0e0e0;
    border-radius: 10px;
    padding: 20px;
    text-align: center;
    min-height: 300px;
    overflow: auto;
}
.mermaid-preview svg {
    max-width: 100%;
    height: auto;
    min-height: 200px;
}
.split-view {
    display: flex;
    gap: 15px;
    height: 400px;
}
.split-view > div {
    flex: 1;
    min-width: 0;
}
.split-view .code-block {
    height: 100%;
    margin: 0;
}
.split-view .mermaid-preview {
    height: 100%;
    margin: 0;
}
.copy-btn {
    position: absolute;
    top: 10px;
    right: 10px;
    background: #667eea;
    color: white;
    border: none;
    padding: 5px 10px;
    border-radius: 5px;
    cursor: pointer;
    font-size: 12px;
    opacity: 0.8;
}
.copy-btn:hover {
    opacity: 1;
}
.download-btn {
    background: #28a745;
    color: white;
    border: none;
    padding: 8px 15px;
    border-radius: 5px;
    cursor: pointer;
    font-size: 12px;
    margin-left: 10px;
}
.download-btn:hover {
    background: #218838;
}
.code-toggle { 
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%); 
    color: white; 
    border: none; 
    padding: 10px 16px; 
    border-radius: 20px; 
    cursor: pointer; 
    font-size: 13px; 
    margin-bottom: 15px;
    font-weight: 600;
    transition: all 0.2s ease;
}
.code-toggle:hover { 
    transform: translateY(-1px);
    box-shadow: 0 3px 10px rgba(102, 126, 234, 0.3);
}
.disclaimer {
    text-align: center;
    margin-top: 20px;
    padding: 15px;
    background: rgba(255,255,255,0.1);
    border-radius: 15px;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255,255,255,0.2);
}
.disclaimer p {
    margin: 0;
    color: #64748b;
    font-size: 14px;
    font-style: italic;
    font-weight: 300;
}

.feedback-tile {
    padding: 20px 30px;
    margin-top: 15px;
    background: rgba(255,255,255,0.95);
    border-top: 1px solid #e0e0e0;
    text-align: center;
    border-radius: 0 0 20px 20px;
}

.feedback-btn {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    padding: 12px 24px;
    border-radius: 25px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 600;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(102, 126, 234, 0.3);
}

.feedback-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(102, 126, 234, 0.5);
}

.feedback-form {
    margin-top: 20px;
    padding: 20px;
    background: rgba(248, 249, 250, 0.8);
    border-radius: 15px;
    border: 1px solid #e0e0e0;
    text-align: left;
}

.feedback-form h4 {
    margin: 0 0 10px 0;
    color: #333;
    font-size: 1.1rem;
}

.feedback-form p {
    margin: 0 0 15px 0;
    color: #666;
    font-size: 0.9rem;
}

.feedback-input, .feedback-textarea {
    width: 100%;
    margin: 10px 0;
    padding: 12px;
    border: 2px solid #e0e0e0;
    border-radius: 8px;
    font-family: inherit;
    font-size: 14px;
    outline: none;
    transition: border-color 0.3s ease;
}

.feedback-input:focus, .feedback-textarea:focus {
    border-color: #667eea;
}

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

.feedback-buttons {
    display: flex;
    gap: 10px;
    justify-content: flex-end;
    margin-top: 15px;
}

.feedback-cancel, .feedback-submit {
    padding: 10px 20px;
    border: none;
    border-radius: 20px;
    cursor: pointer;
    font-weight: 600;
    transition: all 0.2s ease;
}

.feedback-cancel {
    background: #f8f9fa;
    color: #6c757d;
    border: 2px solid #e0e0e0;
}

.feedback-cancel:hover {
    background: #e9ecef;
}

.feedback-submit {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

.feedback-submit:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(102, 126, 234, 0.4);
}
.mini-game {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: rgba(255,255,255,0.95);
    border-radius: 15px;
    padding: 20px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.2);
    backdrop-filter: blur(10px);
    display: none;
    z-index: 1000;
}
.game-title {
    text-align: center;
    margin-bottom: 15px;
    color: #333;
    font-size: 16px;
    font-weight: 600;
}
.game-dots {
    display: flex;
    justify-content: center;
    gap: 15px;
    margin-bottom: 15px;
}
.game-dot {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: bold;
}
.game-dot:hover {
    transform: scale(1.1);
    box-shadow: 0 5px 15px rgba(102, 126, 234, 0.4);
}
.game-dot.clicked {
    background: #28a745;
    transform: scale(0.8);
}
.game-score {
    text-align: center;
    color: #666;
    font-size: 14px;
}
pre { background: #f8f9fa; padding: 10px; border-radius: 5px; overflow-x: auto; }