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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: linear-gradient(135deg, #1e1e1e 0%, #2d2d2d 100%);
    color: #ffffff;
    overflow: hidden;
    user-select: none;
}

.app-container {
    height: 100vh;
    display: flex;
    flex-direction: column;
    background: linear-gradient(135deg, #2d2d2d 0%, #1e1e1e 100%);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4);
    border-radius: 12px;
    margin: 8px;
    overflow: hidden;
}

.title-bar {
    background: linear-gradient(135deg, #232323 0%, #1a1a1a 100%);
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 20px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    -webkit-app-region: drag;
}

.title-content {
    display: flex;
    align-items: center;
    gap: 12px;
}

.title-content i {
    color: #00a8ff;
    font-size: 20px;
    filter: drop-shadow(0 2px 4px rgba(0, 168, 255, 0.3));
}

.title-content h1 {
    font-size: 16px;
    font-weight: 600;
    background: linear-gradient(135deg, #ffffff 0%, #b0b0b0 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.window-controls {
    display: flex;
    gap: 8px;
    -webkit-app-region: no-drag;
}

.title-controls-btn {
    padding: 8px 12px;
    border-radius: 6px;
    height: 32px;
}

.window-btn {
    width: 32px;
    height: 32px;
    border: none;
    border-radius: 6px;
    background: rgba(255, 255, 255, 0.1);
    color: #ffffff;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    backdrop-filter: blur(10px);
    position: relative;
    overflow: hidden;
}

.window-btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
    pointer-events: none;
}

.window-btn:hover {
    background: rgba(255, 255, 255, 0.2);
    box-shadow: 0 4px 12px rgba(255, 255, 255, 0.1);
}

.window-btn:hover::before {
    width: 100px;
    height: 100px;
}

.window-btn:active {
    transform: none;
}

.close-btn:hover {
    background: linear-gradient(135deg, #ff4757 0%, #dc3545 100%);
    box-shadow: 0 4px 12px rgba(220, 53, 69, 0.4);
}

.main-container {
    display: flex;
    flex: 1;
    overflow: hidden;
}

.sidebar {
    width: 280px;
    background: linear-gradient(180deg, #2a2a2a 0%, #1f1f1f 100%);
    border-right: 1px solid rgba(255, 255, 255, 0.1);
    padding: 20px;
    overflow-y: auto;
    overflow-x: hidden;
    box-shadow: inset -5px 0 15px rgba(0, 0, 0, 0.2);
}

.sidebar::-webkit-scrollbar {
    width: 6px;
}

.sidebar::-webkit-scrollbar-track {
    background: rgba(255, 255, 255, 0.05);
    border-radius: 3px;
}

.sidebar::-webkit-scrollbar-thumb {
    background: linear-gradient(180deg, #00a8ff 0%, #0078d4 100%);
    border-radius: 3px;
}

.sidebar-section {
    margin-bottom: 24px;
    background: rgba(255, 255, 255, 0.02);
    border-radius: 12px;
    padding: 16px;
    border: 1px solid rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(10px);
    transition: all 0.3s ease;
    width: 100%;
    box-sizing: border-box;
    overflow: hidden;
}

.sidebar-section:hover {
    background: rgba(255, 255, 255, 0.05);
    border-color: rgba(0, 168, 255, 0.3);
    box-shadow: 0 8px 25px rgba(0, 168, 255, 0.1);
}

.section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 16px;
}

.section-header i {
    color: #00a8ff;
    font-size: 18px;
    filter: drop-shadow(0 2px 4px rgba(0, 168, 255, 0.3));
}

.section-header h3 {
    font-size: 14px;
    font-weight: 600;
    color: #ffffff;
}

.section-content {
    display: flex;
    flex-direction: column;
    gap: 12px;
    width: 100%;
    box-sizing: border-box;
}

.btn {
    padding: 12px 16px;
    border: none;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    position: relative;
    overflow: hidden;
    transform: translateZ(0);
    backface-visibility: hidden;
    width: 100%;
    box-sizing: border-box;
}

.btn:hover {
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.3);
}

.btn:active {
    transform: translateY(0);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s;
    pointer-events: none;
}

.btn:hover::before {
    left: 100%;
}

.btn-primary {
    background: linear-gradient(135deg, #00a8ff 0%, #0078d4 100%);
    color: #ffffff;
    box-shadow: 0 4px 15px rgba(0, 168, 255, 0.3);
}

.btn-primary:hover {
    background: linear-gradient(135deg, #0098e6 0%, #0068bd 100%);
    box-shadow: 0 6px 20px rgba(0, 168, 255, 0.4);
}

.btn-success {
    background: linear-gradient(135deg, #28a745 0%, #1e7e34 100%);
    color: #ffffff;
    box-shadow: 0 4px 15px rgba(40, 167, 69, 0.3);
}

.btn-success:hover {
    background: linear-gradient(135deg, #218838 0%, #155724 100%);
    box-shadow: 0 6px 20px rgba(40, 167, 69, 0.4);
}

.btn-danger {
    background: linear-gradient(135deg, #dc3545 0%, #c82333 100%);
    color: #ffffff;
    box-shadow: 0 4px 15px rgba(220, 53, 69, 0.3);
}

.btn-danger:hover {
    background: linear-gradient(135deg, #c82333 0%, #a71e2a 100%);
    box-shadow: 0 6px 20px rgba(220, 53, 69, 0.4);
}

.btn-warning {
    background: linear-gradient(135deg, #ffc107 0%, #e0a800 100%);
    color: #212529;
    box-shadow: 0 4px 15px rgba(255, 193, 7, 0.3);
}

.btn-warning:hover {
    background: linear-gradient(135deg, #e0a800 0%, #d39e00 100%);
    box-shadow: 0 6px 20px rgba(255, 193, 7, 0.4);
}

.btn-secondary {
    background: linear-gradient(135deg, #6c757d 0%, #545b62 100%);
    color: #ffffff;
    box-shadow: 0 4px 15px rgba(108, 117, 125, 0.3);
}

.btn-secondary:hover {
    background: linear-gradient(135deg, #5a6268 0%, #495057 100%);
    box-shadow: 0 6px 20px rgba(108, 117, 125, 0.4);
}

.btn:disabled {
    background: linear-gradient(135deg, #666666 0%, #555555 100%);
    color: #aaaaaa;
    cursor: not-allowed;
    box-shadow: none;
    transform: none;
}

.btn:disabled::before {
    display: none;
}

.checkbox-container {
    display: flex;
    align-items: center;
    gap: 8px;
}

.checkbox {
    width: 18px;
    height: 18px;
    accent-color: #00a8ff;
    cursor: pointer;
}

.checkbox-container label {
    font-size: 14px;
    color: #e0e0e0;
    cursor: pointer;
}

.status-indicator {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 12px;
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.status-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: #dc3545;
    box-shadow: 0 0 10px rgba(220, 53, 69, 0.5);
    animation: pulse 2s infinite;
}

.status-indicator.connected .status-dot {
    background: #28a745;
    box-shadow: 0 0 10px rgba(40, 167, 69, 0.5);
}

.status-indicator.simulated {
    background: rgba(255, 165, 0, 0.1);
    border: 1px solid rgba(255, 165, 0, 0.3);
}

.status-indicator.simulated .status-dot {
    background: #ffa500;
    box-shadow: 0 0 10px rgba(255, 165, 0, 0.5);
    animation: pulse-sim 1.5s infinite;
}

@keyframes pulse-sim {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.7; transform: scale(1.1); }
}

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

.select-box {
    padding: 10px 12px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.05);
    color: #ffffff;
    font-size: 14px;
    backdrop-filter: blur(10px);
    transition: all 0.2s ease;
}

.select-box:focus {
    outline: none;
    border-color: #00a8ff;
    box-shadow: 0 0 0 3px rgba(0, 168, 255, 0.2);
}

.button-group {
    display: flex;
    gap: 8px;
}

.info-text {
    font-size: 12px;
    color: #b0b0b0;
    line-height: 1.4;
}

.main-content {
    flex: 1;
    padding: 20px;
    overflow-y: auto;
    background: linear-gradient(135deg, #333333 0%, #2a2a2a 100%);
}

.main-content::-webkit-scrollbar {
    width: 8px;
}

.main-content::-webkit-scrollbar-track {
    background: rgba(255, 255, 255, 0.05);
    border-radius: 4px;
}

.main-content::-webkit-scrollbar-thumb {
    background: linear-gradient(180deg, #00a8ff 0%, #0078d4 100%);
    border-radius: 4px;
}

.content-section {
    background: rgba(255, 255, 255, 0.02);
    border-radius: 16px;
    padding: 24px;
    margin-bottom: 24px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    transition: all 0.3s ease;
}

.content-section:hover {
    background: rgba(255, 255, 255, 0.05);
    border-color: rgba(0, 168, 255, 0.3);
    box-shadow: 0 12px 30px rgba(0, 168, 255, 0.1);
}

.hidden {
    display: none !important;
}

.simulator-container {
    display: flex;
    flex-direction: column;
    gap: 20px;
    background: rgba(255, 255, 255, 0.02);
    border-radius: 16px;
    padding: 24px;
    margin-bottom: 24px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    transition: all 0.3s ease;
}

.simulator-container:hover {
    background: rgba(255, 255, 255, 0.05);
    border-color: rgba(0, 168, 255, 0.3);
    box-shadow: 0 12px 30px rgba(0, 168, 255, 0.1);
}

#robotSimulator {
    width: 50%;
    display: block;
    margin: 0 auto;
    border: 1px solid rgba(0, 168, 255, 0.3);
    border-radius: 12px;
    background: linear-gradient(135deg, #0f0f0f 0%, #1a1a1a 100%);
    box-shadow: 
        0 4px 20px rgba(0, 0, 0, 0.4),
        inset 0 1px 0 rgba(255, 255, 255, 0.05);
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    image-rendering: auto;
    cursor: default;
    touch-action: none;
}

#robotSimulator:hover {
    border-color: rgba(0, 168, 255, 0.5);
    box-shadow: 
        0 6px 24px rgba(0, 0, 0, 0.5),
        0 0 12px rgba(0, 168, 255, 0.1),
        inset 0 1px 0 rgba(255, 255, 255, 0.08);
}

#robotSimulator:active {}

.simulator-controls {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 20px;
    background: rgba(255, 255, 255, 0.02);
    border-radius: 12px;
    padding: 16px 20px;
    border: 1px solid rgba(255, 255, 255, 0.08);
}

.recording-controls {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.input-group {
    display: flex;
    align-items: center;
    gap: 12px;
}

.input-group label {
    font-size: 14px;
    font-weight: 500;
    color: #e0e0e0;
    min-width: 80px;
}

.input-field {
    flex: 1;
    padding: 10px 12px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.05);
    color: #ffffff;
    font-size: 14px;
    backdrop-filter: blur(10px);
    transition: all 0.2s ease;
}

.input-field:focus {
    outline: none;
    border-color: #00a8ff;
    box-shadow: 0 0 0 3px rgba(0, 168, 255, 0.2);
}

.status-display {
    background: linear-gradient(135deg, #1a1a1a 0%, #0f0f0f 100%);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    padding: 16px;
    height: 200px;
    overflow-y: auto;
    font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
    font-size: 12px;
    line-height: 1.5;
    box-shadow: inset 0 2px 8px rgba(0, 0, 0, 0.3);
}

.status-display::-webkit-scrollbar {
    width: 6px;
}

.status-display::-webkit-scrollbar-track {
    background: rgba(255, 255, 255, 0.05);
    border-radius: 3px;
}

.status-display::-webkit-scrollbar-thumb {
    background: linear-gradient(180deg, #00a8ff 0%, #0078d4 100%);
    border-radius: 3px;
}

/* Allow selecting and copying text inside the console/status area */
#statusDisplay,
.status-display,
.status-display * {
    user-select: text;
    -webkit-user-select: text;
    -moz-user-select: text;
    -ms-user-select: text;
    cursor: text;
}

.controls-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
}

.control-group {
    background: rgba(255, 255, 255, 0.02);
    border-radius: 12px;
    padding: 20px;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.control-group h4 {
    margin-bottom: 16px;
    color: #00a8ff;
    font-size: 14px;
    font-weight: 600;
}

.control-keys {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.key-row {
    display: flex;
    justify-content: center;
    gap: 12px;
}

.key-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
}

kbd {
    padding: 8px 12px;
    border: 2px solid rgba(255, 255, 255, 0.2);
    border-radius: 8px;
    background: linear-gradient(135deg, #404040 0%, #2a2a2a 100%);
    color: #ffffff;
    font-size: 14px;
    font-weight: 600;
    min-width: 40px;
    text-align: center;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.3);
    transition: all 0.2s ease;
}

kbd:hover {
    background: linear-gradient(135deg, #00a8ff 0%, #0078d4 100%);
    border-color: rgba(0, 168, 255, 0.5);
    box-shadow: 0 6px 15px rgba(0, 168, 255, 0.3);
}

.key-item span {
    font-size: 11px;
    color: #b0b0b0;
    text-align: center;
}

.status-bar {
    height: 40px;
    background: linear-gradient(135deg, #232323 0%, #1a1a1a 100%);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding: 0 20px;
    display: flex;
    align-items: center;
    backdrop-filter: blur(10px);
}

.status-content {
    display: flex;
    gap: 8px;
    align-items: center;
    font-size: 12px;
}

.status-content span:first-child {
    color: #b0b0b0;
}

.status-content span:last-child {
    color: #ffffff;
    font-weight: 500;
}

.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(10px);
    z-index: 1000;
    animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.modal-content {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 90%;
    max-width: 600px;
    max-height: 80vh;
    background: linear-gradient(135deg, #2d2d2d 0%, #1e1e1e 100%);
    border-radius: 16px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
    border: 1px solid rgba(255, 255, 255, 0.1);
    overflow: hidden;
    animation: slideIn 0.3s ease;
}

@keyframes slideIn {
    from { 
        opacity: 0;
        transform: translate(-50%, -60%);
    }
    to { 
        opacity: 1;
        transform: translate(-50%, -50%);
    }
}

.modal-header {
    padding: 20px 24px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: linear-gradient(135deg, #333333 0%, #2a2a2a 100%);
}

.modal-header h2 {
    font-size: 18px;
    font-weight: 600;
    color: #ffffff;
}

.close-modal {
    width: 32px;
    height: 32px;
    border: none;
    border-radius: 6px;
    background: rgba(255, 255, 255, 0.1);
    color: #ffffff;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
}

.close-modal:hover {
    background: linear-gradient(135deg, #ff4757 0%, #dc3545 100%);
    box-shadow: 0 4px 12px rgba(220, 53, 69, 0.4);
}

.modal-body {
    padding: 24px;
    max-height: 60vh;
    overflow-y: auto;
}

.modal-body::-webkit-scrollbar {
    width: 6px;
}

.modal-body::-webkit-scrollbar-track {
    background: rgba(255, 255, 255, 0.05);
    border-radius: 3px;
}

.modal-body::-webkit-scrollbar-thumb {
    background: linear-gradient(180deg, #00a8ff 0%, #0078d4 100%);
    border-radius: 3px;
}

.config-tabs {
    display: flex;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    margin-bottom: 24px;
}

.tab-btn {
    background: none;
    border: none;
    padding: 12px 16px;
    color: #b0b0b0;
    cursor: pointer;
    border-bottom: 2px solid transparent;
    transition: all 0.2s ease;
    font-size: 14px;
}

.tab-btn:hover {
    color: #ffffff;
    background: rgba(255, 255, 255, 0.05);
}

.tab-btn.active {
    color: #00a8ff;
    border-bottom-color: #00a8ff;
}

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
}

.config-group {
    margin-bottom: 24px;
}

.config-group h3 {
    font-size: 16px;
    font-weight: 600;
    color: #ffffff;
    margin-bottom: 16px;
    padding-bottom: 8px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.config-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 16px;
    gap: 16px;
}

.config-row label {
    font-size: 14px;
    color: #e0e0e0;
    min-width: 150px;
}

.config-input, .config-select {
    flex: 1;
    padding: 8px 12px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 6px;
    background: rgba(255, 255, 255, 0.05);
    color: #ffffff;
    font-size: 14px;
    transition: all 0.2s ease;
}

.config-input:focus, .config-select:focus {
    outline: none;
    border-color: #00a8ff;
    box-shadow: 0 0 0 3px rgba(0, 168, 255, 0.2);
}



.modal-footer {
    padding: 16px 24px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    display: flex;
    justify-content: flex-end;
    gap: 12px;
    background: linear-gradient(135deg, #333333 0%, #2a2a2a 100%);
}



/* Version Badge */
.version-badge {
    background: linear-gradient(135deg, #00a8ff 0%, #0078d4 100%);
    color: #ffffff;
    font-size: 10px;
    padding: 2px 6px;
    border-radius: 4px;
    font-weight: 500;
    margin-left: 8px;
}

/* Enhanced Section Headers - Additional Styles */

.section-actions {
    display: flex;
    gap: 8px;
    align-items: center;
}

.btn-icon {
    width: 32px;
    height: 32px;
    border: none;
    border-radius: 6px;
    background: rgba(255, 255, 255, 0.1);
    color: #ffffff;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
    font-size: 14px;
}

.btn-icon:hover {
    background: rgba(0, 168, 255, 0.2);
}

/* Emergency Stop Button */
.btn-emergency {
    background: linear-gradient(135deg, #ff4757 0%, #dc3545 100%) !important;
    box-shadow: 0 4px 15px rgba(255, 71, 87, 0.4);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.btn-emergency:hover {
    background: linear-gradient(135deg, #ff3742 0%, #c82333 100%) !important;
    box-shadow: 0 6px 20px rgba(255, 71, 87, 0.6);
}

/* Help Text */
.help-text {
    font-size: 12px;
    color: #888;
    line-height: 1.4;
    margin-top: 4px;
}

/* Controls Help */
.controls-help {
    margin-top: 16px;
    padding: 12px;
    background: rgba(0, 168, 255, 0.1);
    border-radius: 8px;
    border-left: 4px solid #00a8ff;
}



/* Recording Timer */
.recording-timer {
    background: rgba(220, 53, 69, 0.1);
    color: #dc3545;
    padding: 4px 12px;
    border-radius: 16px;
    font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
    font-size: 12px;
    font-weight: 600;
    border: 1px solid rgba(220, 53, 69, 0.3);
    animation: pulse 1s infinite;
}

/* Performance Stats */
.performance-stats {
    display: flex;
    gap: 16px;
    font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
    font-size: 11px;
    color: #888;
}

.simulator-info {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.simulator-info .info-text {
    color: rgba(255, 255, 255, 0.8);
    font-size: 14px;
    line-height: 1.5;
    margin: 0;
}

.simulator-info .performance-stats {
    display: flex;
    gap: 16px;
    font-size: 12px;
    color: rgba(0, 168, 255, 0.9);
    font-weight: 500;
    font-family: 'SF Mono', Monaco, monospace;
}

/* Toast Notifications */
.toast-container {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 1100;
    display: flex;
    flex-direction: column;
    gap: 8px;
    max-width: 350px;
}

.toast {
    background: linear-gradient(135deg, #2d2d2d 0%, #1e1e1e 100%);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    padding: 16px;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3);
    backdrop-filter: blur(10px);
    animation: slideInToast 0.3s ease;
    position: relative;
    overflow: hidden;
}

.toast::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    width: 4px;
    height: 100%;
    background: linear-gradient(135deg, #00a8ff 0%, #0078d4 100%);
}

.toast.success::before {
    background: linear-gradient(135deg, #28a745 0%, #1e7e34 100%);
}

.toast.warning::before {
    background: linear-gradient(135deg, #ffc107 0%, #e0a800 100%);
}

.toast.error::before {
    background: linear-gradient(135deg, #dc3545 0%, #c82333 100%);
}

.toast-header {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 8px;
}

.toast-header i {
    font-size: 16px;
}

.toast-header h4 {
    font-size: 14px;
    font-weight: 600;
    color: #ffffff;
    margin: 0;
}

.toast-body {
    font-size: 13px;
    color: #e0e0e0;
    line-height: 1.4;
}

.toast-close {
    position: absolute;
    top: 8px;
    right: 8px;
    background: none;
    border: none;
    color: #888;
    cursor: pointer;
    padding: 4px;
    border-radius: 4px;
    transition: all 0.2s ease;
}

.toast-close:hover {
    background: rgba(255, 255, 255, 0.1);
    color: #ffffff;
}

@keyframes slideInToast {
    from {
        transform: translateX(100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

/* Enhanced Status Bar */
.status-bar {
    height: 40px;
    background: linear-gradient(135deg, #232323 0%, #1a1a1a 100%);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding: 0 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    backdrop-filter: blur(10px);
}

.status-content {
    display: flex;
    gap: 8px;
    align-items: center;
    font-size: 12px;
}

.status-content span:first-child {
    color: #b0b0b0;
}

.status-content span:last-child {
    color: #ffffff;
    font-weight: 500;
}

/* Responsive Design */
@media (max-width: 1200px) {
    .controls-grid {
        grid-template-columns: 1fr;
    }
    
    .simulator-controls {
        flex-direction: column;
        gap: 12px;
    }
    
    #robotSimulator {}
}

@media (max-width: 768px) {
    .app-container {
        margin: 0;
        border-radius: 0;
    }
    
    .sidebar {
        width: 240px;
    }
    
    .modal-content {
        width: 95%;
        margin: 20px;
    }
    
    .toast-container {
        top: 10px;
        right: 10px;
        left: 10px;
        max-width: none;
    }
    
    .simulator-container {
        padding: 16px;
        gap: 12px;
        margin-bottom: 16px;
    }
    
    #robotSimulator {}
    
    .simulator-info .performance-stats {
        flex-direction: column;
        gap: 8px;
    }
    
    .status-bar {
        flex-direction: column;
        height: auto;
        padding: 8px 20px;
        gap: 4px;
    }
}

@media (max-width: 480px) {
    .title-content h1 {
        font-size: 14px;
    }
    
    .version-badge {
        display: none;
    }
    
    .sidebar {
        width: 100%;
        position: absolute;
        top: 50px;
        left: 0;
        height: calc(100vh - 90px);
        z-index: 100;
        transform: translateX(-100%);
        transition: transform 0.3s ease;
    }
    
    .sidebar.open {
        transform: translateX(0);
    }
    
    .main-content {
        padding: 12px;
    }
    
    .simulator-controls {
        flex-direction: column;
        gap: 8px;
        padding: 12px 16px;
    }
    
    .simulator-info .performance-stats {
        justify-content: center;
    }
}

/* Dark mode enhancements */
@media (prefers-color-scheme: dark) {
    .loading-screen {
        background: linear-gradient(135deg, #0f0f0f 0%, #1a1a1a 100%);
    }
}

/* High contrast mode */
@media (prefers-contrast: high) {
    .btn {
        border: 2px solid currentColor;
    }
    
    .status-indicator {
        border: 2px solid currentColor;
    }
    
    .modal-content {
        border: 2px solid #ffffff;
    }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    .loading-progress {
        animation: none;
        width: 100%;
    }
}

/* Browser Not Supported Styles */
.browser-not-supported {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, #1e1e1e 0%, #2d2d2d 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 99999;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
}

.browser-not-supported-content {
    background: linear-gradient(135deg, #2d2d2d 0%, #1e1e1e 100%);
    border-radius: 16px;
    padding: 40px;
    max-width: 600px;
    width: 90%;
    text-align: center;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.browser-not-supported-icon {
    margin-bottom: 20px;
}

.browser-not-supported-icon i {
    font-size: 64px;
    color: #ff6b6b;
    filter: drop-shadow(0 4px 8px rgba(255, 107, 107, 0.3));
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.1); }
}

.browser-not-supported h1 {
    color: #ffffff;
    font-size: 28px;
    font-weight: 600;
    margin-bottom: 16px;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.5);
}

.browser-not-supported p {
    color: #b0b0b0;
    font-size: 16px;
    line-height: 1.6;
    margin-bottom: 12px;
}

.browser-not-supported p strong {
    color: #ff6b6b;
    font-weight: 600;
}

.blocked-message {
    background: rgba(255, 107, 107, 0.2);
    padding: 16px;
    border-radius: 10px;
    border: 1px solid rgba(255, 107, 107, 0.4);
    margin: 20px 0 !important;
    font-weight: 500;
    color: #ff6b6b !important;
    font-size: 16px !important;
}

.supported-browsers {
    margin: 30px 0;
    padding: 24px;
    background: rgba(255, 255, 255, 0.02);
    border-radius: 12px;
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.supported-browsers h3 {
    color: #ffffff;
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 16px;
}

.browser-list {
    display: flex;
    justify-content: center;
    gap: 24px;
    flex-wrap: wrap;
}

.browser-item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px 16px;
    background: rgba(0, 168, 255, 0.1);
    border-radius: 8px;
    border: 1px solid rgba(0, 168, 255, 0.2);
    color: #ffffff;
    font-weight: 500;
    transition: all 0.3s ease;
}

.browser-item:hover {
    background: rgba(0, 168, 255, 0.2);
    transform: translateY(-2px);
}

.browser-item i {
    font-size: 20px;
    color: #00a8ff;
}

.technical-details {
    margin-top: 30px;
    padding-top: 24px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.technical-details p {
    color: #888;
    font-size: 14px;
    margin-bottom: 12px;
}

.technical-details ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.technical-details li {
    color: #666;
    font-size: 13px;
    padding: 4px 0;
    position: relative;
    padding-left: 16px;
}

.technical-details li:before {
    content: "•";
    color: #00a8ff;
    position: absolute;
    left: 0;
    top: 4px;
}

.technical-details .note {
    color: #ff6b6b !important;
    font-weight: 500;
    font-size: 14px !important;
    margin-top: 16px;
    padding: 12px;
    background: rgba(255, 107, 107, 0.1);
    border-radius: 8px;
    border: 1px solid rgba(255, 107, 107, 0.2);
}

/* Responsive design for browser not supported screen */
@media (max-width: 768px) {
    .browser-not-supported-content {
        padding: 30px 20px;
        margin: 20px;
    }
    
    .browser-not-supported h1 {
        font-size: 24px;
    }
    
    .browser-list {
        flex-direction: column;
        align-items: center;
    }
    
    .browser-item {
        width: 100%;
        max-width: 200px;
        justify-content: center;
    }
}

/* ============================
   XBOX CONTROLLER MODAL STYLES
   ============================ */

.xbox-modal {
    z-index: 10000;
}

.xbox-modal-content {
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
    border-radius: 20px;
    padding: 40px;
    max-width: 600px;
    width: 90%;
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.5);
    border: 1px solid rgba(255, 255, 255, 0.1);
    position: relative;
    overflow: visible;
}

/* Xbox scene styling moved to line 1495 for better organization */

.xbox-controller-3d {
    width: 100%;
    height: 100%;
    position: relative;
    transform-style: preserve-3d;
    animation: rotateController 8s infinite linear;
}

/* Model Viewer Styles for 3D Xbox Controller */
#xboxController3D {
    width: 100%;
    height: 300px;
    background: transparent;
    --poster-color: transparent;
    --progress-bar-color: #00a8ff;
    --progress-bar-height: 3px;
    --progress-mask: transparent;
    /* Center the model properly */
    display: block;
    margin: 0 auto;
}

/* Ensure model is centered */
#xboxController3D::part(default-ar-button) {
    display: none;
}

#xboxController3D::part(default-progress-bar) {
    background-color: #00a8ff;
}

.xbox-scene {
    display: flex;
    justify-content: center;
    align-items: center;
    margin: 20px auto;
    min-height: 300px;
    position: relative;
    /* Increase width to give more space for centering */
    width: 400px;
    max-width: 100%;
}

/* Loading state for model */
#xboxController3D:not([loaded]) {
    opacity: 0.7;
}

#xboxController3D[loaded] {
    opacity: 1;
    transition: opacity 0.3s ease-in-out;
}

.xbox-modal-content.success #xboxController3D {
    animation: controllerSuccess 0.6s ease-out;
}

@keyframes controllerSuccess {
    0% { transform: scale(1); }
    50% { transform: scale(1.1); }
    100% { transform: scale(1); }
}

/* Old rotation animation - not needed with model-viewer
@keyframes rotateController {
    0% { transform: rotateY(0deg) rotateX(-10deg); }
    100% { transform: rotateY(360deg) rotateX(-10deg); }
}
*/

.controller-body {
    width: 280px;
    height: 180px;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    transform-style: preserve-3d;
}

.controller-main-body {
    width: 100%;
    height: 100%;
    position: relative;
    transform-style: preserve-3d;
}

/* Controller Front Face */
.controller-front {
    position: absolute;
    width: 100%;
    height: 100%;
    background: linear-gradient(145deg, #2a2a2a 0%, #1a1a1a 100%);
    border-radius: 60px 60px 20px 20px;
    box-shadow: 
        inset 0 2px 4px rgba(255, 255, 255, 0.1),
        inset 0 -2px 8px rgba(0, 0, 0, 0.4),
        0 5px 20px rgba(0, 0, 0, 0.3);
    overflow: hidden;
}

/* Grips */
.grip-left,
.grip-right {
    position: absolute;
    width: 90px;
    height: 120px;
    bottom: -20px;
    background: linear-gradient(145deg, #252525 0%, #151515 100%);
    box-shadow: 
        inset 2px 0 4px rgba(255, 255, 255, 0.05),
        inset -2px 0 4px rgba(0, 0, 0, 0.3);
}

.grip-left {
    left: -20px;
    border-radius: 50% 20% 20% 50% / 30% 20% 20% 30%;
    transform: rotate(-15deg);
}

.grip-right {
    right: -20px;
    border-radius: 20% 50% 50% 20% / 20% 30% 30% 20%;
    transform: rotate(15deg);
}

/* Center Section */
.center-section {
    position: absolute;
    width: 200px;
    height: 140px;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

/* Controller Back */
.controller-back {
    position: absolute;
    width: 100%;
    height: 100%;
    background: linear-gradient(145deg, #1a1a1a 0%, #0f0f0f 100%);
    border-radius: 60px 60px 20px 20px;
    transform: rotateY(180deg) translateZ(40px);
    box-shadow: inset 0 0 20px rgba(0, 0, 0, 0.5);
}

/* Battery Compartment */
.battery-compartment {
    position: absolute;
    width: 120px;
    height: 60px;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: #0a0a0a;
    border-radius: 10px;
    box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.5);
}

/* Controller Top */
.controller-top {
    position: absolute;
    width: 100%;
    height: 40px;
    top: -20px;
    background: linear-gradient(90deg, #1a1a1a 0%, #2a2a2a 50%, #1a1a1a 100%);
    border-radius: 50px 50px 0 0;
    transform: translateZ(20px);
    box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.3);
}

/* Analog Sticks */
.stick-housing {
    position: absolute;
    width: 45px;
    height: 45px;
    background: #0a0a0a;
    border-radius: 50%;
    box-shadow: 
        inset 0 3px 8px rgba(0, 0, 0, 0.8),
        0 1px 2px rgba(255, 255, 255, 0.05);
}

.stick-housing.left {
    top: 30px;
    left: 40px;
}

.stick-housing.right {
    bottom: 50px;
    right: 40px;
}

.stick-base {
    position: absolute;
    width: 100%;
    height: 100%;
    background: #1a1a1a;
    border-radius: 50%;
    box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.5);
}

.stick-shaft {
    position: absolute;
    width: 30px;
    height: 30px;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: linear-gradient(145deg, #2a2a2a, #1a1a1a);
    border-radius: 50%;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.5);
}

.stick-top {
    position: absolute;
    width: 25px;
    height: 25px;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: radial-gradient(circle at 30% 30%, #3a3a3a, #1a1a1a);
    border-radius: 50%;
    box-shadow: 
        inset 0 -1px 3px rgba(0, 0, 0, 0.5),
        0 1px 2px rgba(255, 255, 255, 0.1);
}

.stick-top::after {
    content: '';
    position: absolute;
    width: 18px;
    height: 18px;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    border: 2px dotted rgba(255, 255, 255, 0.1);
    border-radius: 50%;
}

/* D-Pad */
.dpad-housing {
    position: absolute;
    width: 50px;
    height: 50px;
    left: 35px;
    bottom: 35px;
    background: #0a0a0a;
    border-radius: 50%;
    box-shadow: 
        inset 0 2px 4px rgba(0, 0, 0, 0.6),
        0 1px 2px rgba(255, 255, 255, 0.05);
}

.dpad {
    position: absolute;
    width: 40px;
    height: 40px;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

.dpad-vertical,
.dpad-horizontal {
    position: absolute;
    background: linear-gradient(145deg, #2a2a2a, #1a1a1a);
    box-shadow: 
        0 1px 3px rgba(0, 0, 0, 0.5),
        inset 0 -1px 2px rgba(0, 0, 0, 0.3);
}

.dpad-vertical {
    width: 14px;
    height: 40px;
    left: 50%;
    transform: translateX(-50%);
    border-radius: 3px;
}

.dpad-horizontal {
    width: 40px;
    height: 14px;
    top: 50%;
    transform: translateY(-50%);
    border-radius: 3px;
}

.dpad-center {
    position: absolute;
    width: 16px;
    height: 16px;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: #1a1a1a;
    border-radius: 50%;
    box-shadow: inset 0 1px 2px rgba(0, 0, 0, 0.5);
}

/* ABXY Buttons */
.buttons-housing {
    position: absolute;
    width: 70px;
    height: 70px;
    right: 30px;
    top: 25px;
}

.button-a, .button-b, .button-x, .button-y {
    position: absolute;
    width: 24px;
    height: 24px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.1s ease;
    box-shadow: 
        0 3px 6px rgba(0, 0, 0, 0.6),
        inset 0 -2px 4px rgba(0, 0, 0, 0.4),
        inset 0 1px 2px rgba(255, 255, 255, 0.2);
}

.button-a span,
.button-b span,
.button-x span,
.button-y span {
    font-size: 11px;
    font-weight: bold;
    color: #fff;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.8);
    user-select: none;
}

.button-a {
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    background: linear-gradient(145deg, #0fa00f, #0d7c0d);
}

.button-b {
    right: 0;
    top: 50%;
    transform: translateY(-50%);
    background: linear-gradient(145deg, #ff2e2e, #dc2626);
}

.button-x {
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    background: linear-gradient(145deg, #3d7aff, #2563eb);
}

.button-y {
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    background: linear-gradient(145deg, #ffb21a, #f59e0b);
}

.button-a:active,
.button-b:active,
.button-x:active,
.button-y:active {
    transform: translateX(-50%) translateY(1px) scale(0.95);
    box-shadow: 
        0 1px 3px rgba(0, 0, 0, 0.6),
        inset 0 -1px 2px rgba(0, 0, 0, 0.4);
}

/* Xbox Button */
.xbox-button-housing {
    position: absolute;
    width: 40px;
    height: 40px;
    top: 60px;
    left: 50%;
    transform: translateX(-50%);
}

.xbox-button {
    position: relative;
    width: 100%;
    height: 100%;
    background: #0a0a0a;
    border-radius: 50%;
    box-shadow: 
        inset 0 2px 4px rgba(0, 0, 0, 0.6),
        0 1px 2px rgba(255, 255, 255, 0.05);
    cursor: pointer;
    transition: all 0.2s ease;
}

.xbox-logo {
    position: absolute;
    width: 24px;
    height: 24px;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: radial-gradient(circle at 30% 30%, #4ade80, #22c55e);
    border-radius: 50%;
    box-shadow: 
        0 0 10px rgba(74, 222, 128, 0.5),
        inset 0 -1px 2px rgba(0, 0, 0, 0.3);
    animation: xboxButtonPulse 2s infinite;
}

.xbox-logo::before {
    content: 'X';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 14px;
    font-weight: bold;
    color: #0a0a0a;
    text-shadow: 0 1px 1px rgba(255, 255, 255, 0.2);
}

@keyframes xboxButtonPulse {
    0%, 100% { 
        box-shadow: 
            0 0 10px rgba(74, 222, 128, 0.5),
            inset 0 -1px 2px rgba(0, 0, 0, 0.3);
    }
    50% { 
        box-shadow: 
            0 0 20px rgba(74, 222, 128, 0.8),
            inset 0 -1px 2px rgba(0, 0, 0, 0.3);
    }
}

/* Menu and View Buttons */
.menu-button,
.view-button {
    position: absolute;
    width: 20px;
    height: 20px;
    background: #0a0a0a;
    border-radius: 50%;
    top: 65px;
    box-shadow: 
        inset 0 2px 3px rgba(0, 0, 0, 0.6),
        0 1px 2px rgba(255, 255, 255, 0.05);
    cursor: pointer;
    transition: all 0.1s ease;
}

.menu-button {
    right: 60px;
}

.view-button {
    left: 60px;
}

.menu-icon,
.view-icon {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

.menu-icon::before,
.menu-icon::after,
.view-icon::before,
.view-icon::after {
    content: '';
    position: absolute;
    background: #3a3a3a;
}

/* Menu icon (three lines) */
.menu-icon::before {
    width: 10px;
    height: 1px;
    top: -3px;
    left: -5px;
}

.menu-icon {
    width: 10px;
    height: 1px;
    background: #3a3a3a;
}

.menu-icon::after {
    width: 10px;
    height: 1px;
    bottom: -3px;
    left: -5px;
}

/* View icon (two squares) */
.view-icon::before {
    width: 4px;
    height: 4px;
    top: -3px;
    left: -5px;
    border: 1px solid #3a3a3a;
}

.view-icon::after {
    width: 4px;
    height: 4px;
    bottom: -3px;
    right: -5px;
    border: 1px solid #3a3a3a;
}

/* Bumpers and Triggers */
.bumper {
    position: absolute;
    width: 80px;
    height: 15px;
    top: 5px;
    background: linear-gradient(145deg, #2a2a2a, #1a1a1a);
    border-radius: 20px;
    box-shadow: 
        0 2px 4px rgba(0, 0, 0, 0.5),
        inset 0 -1px 2px rgba(0, 0, 0, 0.3);
    cursor: pointer;
    transition: all 0.1s ease;
    font-size: 10px;
    color: #666;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
}

.bumper.left {
    left: 20px;
}

.bumper.right {
    right: 20px;
}

.trigger {
    position: absolute;
    width: 60px;
    height: 25px;
    bottom: -15px;
    background: linear-gradient(145deg, #1a1a1a, #0a0a0a);
    border-radius: 0 0 20px 20px;
    transform: rotateX(30deg);
    transform-origin: top;
    box-shadow: 
        0 3px 6px rgba(0, 0, 0, 0.6),
        inset 0 -2px 4px rgba(0, 0, 0, 0.4);
    cursor: pointer;
    transition: all 0.1s ease;
}

.trigger.left {
    left: 30px;
}

.trigger.right {
    right: 30px;
}

.trigger::after {
    content: '';
    position: absolute;
    width: 30px;
    height: 3px;
    background: #0a0a0a;
    top: 8px;
    left: 50%;
    transform: translateX(-50%);
    border-radius: 2px;
    box-shadow: inset 0 1px 2px rgba(0, 0, 0, 0.5);
}

/* USB Port */
.usb-port {
    position: absolute;
    width: 20px;
    height: 8px;
    background: #0a0a0a;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    border-radius: 4px;
    box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.8);
}

/* Shadow Effect */
.xbox-shadow {
    position: absolute;
    bottom: -60px;
    left: 50%;
    transform: translateX(-50%);
    width: 240px;
    height: 60px;
    background: radial-gradient(ellipse at center, rgba(0, 0, 0, 0.6) 0%, transparent 70%);
    filter: blur(25px);
    animation: shadowPulse 8s infinite linear;
}

@keyframes shadowPulse {
    0%, 100% { 
        transform: translateX(-50%) scale(1);
        opacity: 0.8;
    }
    50% { 
        transform: translateX(-50%) scale(1.1);
        opacity: 0.6;
    }
}

/* Additional details for realism */
.controller-front::before {
    content: '';
    position: absolute;
    top: 10px;
    left: 10px;
    right: 10px;
    height: 30%;
    background: linear-gradient(180deg, 
        rgba(255, 255, 255, 0.05) 0%,
        transparent 100%);
    border-radius: 50px 50px 0 0;
    pointer-events: none;
}

/* Texture on grips */
.grip-left::after,
.grip-right::after {
    content: '';
    position: absolute;
    width: 60%;
    height: 80%;
    top: 10%;
    background-image: 
        repeating-linear-gradient(
            45deg,
            transparent,
            transparent 2px,
            rgba(0, 0, 0, 0.1) 2px,
            rgba(0, 0, 0, 0.1) 4px
        );
    opacity: 0.3;
}

.grip-left::after {
    right: 10%;
}

.grip-right::after {
    left: 10%;
}

/* Active states for buttons */
.button-a:active { transform: translateX(-50%) translateY(2px) scale(0.9); }
.button-b:active { transform: translateY(-50%) translateX(2px) scale(0.9); }
.button-x:active { transform: translateY(-50%) translateX(-2px) scale(0.9); }
.button-y:active { transform: translateX(-50%) translateY(-2px) scale(0.9); }

.menu-button:active,
.view-button:active,
.xbox-button:active {
    transform: scale(0.95);
}

.bumper:active {
    transform: translateY(1px);
}

.trigger:active {
    transform: rotateX(35deg);
}

/* Modal Text Styling */
.xbox-modal-text {
    text-align: center;
    color: #fff;
}

.xbox-modal-text h2 {
    font-size: 28px;
    margin-bottom: 15px;
    background: linear-gradient(135deg, #4ade80 0%, #22c55e 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.xbox-status-text {
    color: #94a3b8;
    font-size: 16px;
    margin-bottom: 30px;
}

.xbox-pulse-indicator {
    position: relative;
    width: 60px;
    height: 60px;
    margin: 30px auto;
}

.pulse-ring {
    position: absolute;
    width: 100%;
    height: 100%;
    border: 2px solid #4ade80;
    border-radius: 50%;
    animation: pulse 3s infinite;
    opacity: 0;
}

.pulse-ring:nth-child(1) {
    animation-delay: 0s;
}

.pulse-ring:nth-child(2) {
    animation-delay: 1s;
}

.pulse-ring:nth-child(3) {
    animation-delay: 2s;
}

@keyframes pulse {
    0% {
        transform: scale(0.8);
        opacity: 1;
    }
    100% {
        transform: scale(2);
        opacity: 0;
    }
}

.xbox-cancel-btn {
    display: block;
    margin: 20px auto 0;
}

/* Success State */
.xbox-modal-content.success .xbox-controller-3d {
    animation: successBounce 0.6s ease-out;
}

.xbox-modal-content.success .xbox-logo {
    background: radial-gradient(circle at 30% 30%, #4ade80, #22c55e);
    animation: none;
    box-shadow: 
        0 0 40px rgba(74, 222, 128, 1),
        inset 0 -1px 2px rgba(0, 0, 0, 0.3);
}

.xbox-modal-content.success .controller-front {
    box-shadow: 
        inset 0 2px 4px rgba(255, 255, 255, 0.1),
        inset 0 -2px 8px rgba(0, 0, 0, 0.4),
        0 5px 20px rgba(0, 0, 0, 0.3),
        0 0 30px rgba(74, 222, 128, 0.3);
}

@keyframes successBounce {
    0% { transform: scale(1) rotateY(0deg) rotateX(-10deg); }
    50% { transform: scale(1.2) rotateY(180deg) rotateX(-10deg); }
    100% { transform: scale(1) rotateY(360deg) rotateX(-10deg); }
}

/* =============================================================
   Modern UI Upgrades (2025-08)
   - Theme tokens
   - Aurora background overlay
   - Gradient borders and enhanced shadows
   - Accessible focus states
   - Utility helpers (shadows, gradient text, borders)
   ============================================================= */

:root {
    /* Color tokens */
    --bg-0: #0c0d10;
    --bg-1: #14161a;
    --bg-2: #1b1f24;
    --surface-0: rgba(255, 255, 255, 0.02);
    --surface-1: rgba(255, 255, 255, 0.04);
    --surface-2: rgba(255, 255, 255, 0.06);
    --text-0: #ffffff;
    --text-muted: #b0b0b0;
    --accent-0: #00a8ff;
    --accent-1: #7c4dff;
    --success-0: #28a745;
    --warning-0: #ffc107;
    --danger-0: #dc3545;

    /* Gradients */
    --grad-primary: linear-gradient(135deg, #00a8ff 0%, #0078d4 100%);
    --grad-accent: linear-gradient(135deg, rgba(0,168,255,0.75), rgba(124,77,255,0.75));
    --grad-surface: linear-gradient(135deg, #2d2d2d 0%, #1e1e1e 100%);
    --grad-aurora: radial-gradient(800px 400px at 0% 0%, rgba(0,168,255,0.10), transparent 60%),
        radial-gradient(800px 400px at 100% 100%, rgba(124,77,255,0.10), transparent 60%),
        radial-gradient(600px 300px at 0% 100%, rgba(40,167,69,0.10), transparent 60%);

    /* Shadows */
    --shadow-sm: 0 2px 6px rgba(0, 0, 0, 0.35);
    --shadow-md: 0 8px 25px rgba(0, 0, 0, 0.35), 0 2px 8px rgba(0, 0, 0, 0.25);
    --shadow-lg: 0 16px 40px rgba(0, 0, 0, 0.45), 0 4px 16px rgba(0, 0, 0, 0.25);
    --shadow-glow-accent: 0 0 0 0 rgba(0,168,255,0), 0 10px 30px rgba(0,168,255,0.18);

    /* Radii */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
}

/* Subtle animated aurora overlay and grain for depth */
body {
    position: relative;
}

body::before {
    content: '';
    position: fixed;
    inset: 0;
    pointer-events: none;
    background: var(--grad-aurora);
    filter: blur(40px) saturate(110%);
    opacity: 0.6;
    animation: auroraShift 22s ease-in-out infinite;
    z-index: 0;
}

body::after {
    content: '';
    position: fixed;
    inset: 0;
    pointer-events: none;
    background-image: radial-gradient(rgba(255,255,255,0.03) 1px, transparent 1px);
    background-size: 4px 4px;
    mix-blend-mode: overlay;
    opacity: 0.18;
    z-index: 0;
}

/* Performance-lite mode: reduce GPU/repaint load for low-end devices */
body.perf-lite::before,
body.perf-lite::after {
    animation: none !important;
    opacity: 0.08 !important;
    filter: none !important;
}

.perf-lite .home-hero,
.perf-lite .model-card,
.perf-lite .content-section,
.perf-lite .sidebar-section,
.perf-lite .simulator-container,
.perf-lite .toast,
.perf-lite .modal-content {
    backdrop-filter: none !important;
    box-shadow: none !important;
}

.perf-lite .model-card:hover {
    transform: none !important;
    box-shadow: none !important;
}

.perf-lite .cta-btn { box-shadow: none !important; }
.perf-lite .cta-btn:hover { transform: none !important; box-shadow: none !important; }

.perf-lite #xboxController3D,
.perf-lite #xboxModel,
.perf-lite #keyboardModel {
    --progress-bar-height: 2px;
}

@keyframes auroraShift {
    0%, 100% { transform: translate3d(0, 0, 0) scale(1); }
    50% { transform: translate3d(0, -2%, 0) scale(1.02); }
}

@media (prefers-reduced-motion: reduce) {
    body::before { animation: none; }
}

/* Elevate the app container and add a gradient border ring */
.app-container {
    position: relative;
    z-index: 1;
    box-shadow: var(--shadow-lg);
}

.app-container::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: 12px;
    padding: 1px; /* thickness of the gradient ring */
    background: linear-gradient(135deg, rgba(0,168,255,0.35), rgba(124,77,255,0.20));
    -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    pointer-events: none;
    opacity: 0.7;
}

/* Enhance cards and panels */
.content-section,
.sidebar-section,
.simulator-container,
.status-display,
.modal-content,
.toast {
    background: var(--surface-0);
    border: 1px solid rgba(255, 255, 255, 0.08);
    box-shadow: var(--shadow-md);
}

/* Gradient dividers for section headers */
.section-header::after {
    content: '';
    display: block;
    height: 1px;
    margin-top: 10px;
    border-radius: 999px;
    background: linear-gradient(90deg, rgba(0,168,255,0.6), rgba(124,77,255,0.0));
}

/* Buttons: stronger glow and clearer focus */
.btn {
    box-shadow: 0 6px 18px rgba(0,0,0,0.35);
}

.btn:hover {
    box-shadow: 0 10px 28px rgba(0,0,0,0.45), var(--shadow-glow-accent);
}

.window-btn,
.btn-icon {
    box-shadow: 0 4px 14px rgba(0,0,0,0.35);
}

/* Accessible focus states across interactive elements */
.btn:focus-visible,
.window-btn:focus-visible,
.btn-icon:focus-visible,
.tab-btn:focus-visible,
.select-box:focus-visible,
.input-field:focus-visible,
.config-input:focus-visible,
.config-select:focus-visible {
    outline: none;
    box-shadow:
        0 0 0 2px rgba(0, 0, 0, 0.4),
        0 0 0 4px rgba(0,168,255,0.35),
        0 8px 25px rgba(0,168,255,0.25);
    border-color: rgba(0,168,255,0.6);
}

/* Gradient text utility */
.text-gradient {
    background: linear-gradient(135deg, #ffffff 0%, #c7c7c7 40%, #8bcdfc 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* Gradient border utility */
.gradient-border {
    position: relative;
    border-radius: var(--radius-md);
}

.gradient-border::before {
    content: '';
    position: absolute;
    inset: 0;
    padding: 1px;
    border-radius: inherit;
    background: var(--grad-accent);
    -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    pointer-events: none;
    opacity: 0.9;
}

/* Shadow utilities (opt-in) */
.shadow-sm { box-shadow: var(--shadow-sm) !important; }
.shadow-md { box-shadow: var(--shadow-md) !important; }
.shadow-lg { box-shadow: var(--shadow-lg) !important; }
.shadow-glow { box-shadow: var(--shadow-glow-accent) !important; }

/* Softer keycap and card hover depth */
kbd,
.control-group,
.content-section:hover,
.simulator-container:hover {
    box-shadow: 0 14px 34px rgba(0,0,0,0.45), 0 0 14px rgba(0,168,255,0.08);
}

/* Title bar subtle bottom glow */
.title-bar {
    box-shadow: 0 6px 18px rgba(0,0,0,0.45), inset 0 -1px 0 rgba(255,255,255,0.06);
}

/* Status bar glass polish */
.status-bar {
    box-shadow: 0 -6px 18px rgba(0,0,0,0.45), inset 0 1px 0 rgba(255,255,255,0.06);
}

/* Enhanced simulator canvas aura on hover */
#robotSimulator:hover {
    box-shadow:
        0 12px 32px rgba(0,0,0,0.55),
        0 0 18px rgba(0,168,255,0.12),
        inset 0 1px 0 rgba(255,255,255,0.08);
}

/* Inputs and selects surfaces */
.input-field,
.select-box,
.config-input,
.config-select {
    background: var(--surface-1);
    border-color: rgba(255, 255, 255, 0.18);
}

/* Section subtitles and helper text refinement */
.info-text,
.help-text,
.simulator-info .performance-stats {
    color: var(--text-muted);
}

/* Modals: stronger elevation and ring */
.modal-content {
    box-shadow: 0 30px 70px rgba(0,0,0,0.55), 0 0 0 1px rgba(255,255,255,0.06) inset;
}

/* Toasters: bolder presence */
.toast {
    box-shadow: 0 18px 40px rgba(0,0,0,0.55), 0 0 0 1px rgba(255,255,255,0.06) inset;
}

/* Section headers use gradient title text subtly */
.section-header h3 {
    background: linear-gradient(135deg, #ffffff 0%, #d9d9d9 60%, #8bcdfc 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* Status indicator subtle glow intensity */
.status-indicator {
    box-shadow: inset 0 0 0 1px rgba(255,255,255,0.05), 0 8px 24px rgba(0,0,0,0.35);
}

/* Scrollbar polish globally */
body::-webkit-scrollbar {
    width: 10px;
    height: 10px;
}

body::-webkit-scrollbar-thumb {
    background: linear-gradient(180deg, #00a8ff 0%, #7c4dff 100%);
    border-radius: 6px;
}

body::-webkit-scrollbar-track {
    background: rgba(255, 255, 255, 0.05);
}

/* Controller trigger meters */
.meter {
    background: rgba(255, 255, 255, 0.06);
    height: 8px;
    border-radius: 999px;
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, 0.12);
}

.meter-fill {
    height: 100%;
    width: 0%;
    transition: width 0.1s ease;
}

.meter-fill.is-reverse {
    background: linear-gradient(90deg, #ff5252 0%, #ff6b6b 100%);
}

.meter-fill.is-forward {
    background: linear-gradient(90deg, #22c55e 0%, #16a34a 100%);
}

/* Text utilities */
.text-accent { color: var(--accent-0) !important; }
.text-muted { color: var(--text-muted) !important; }
.stat-value { font-size: 12px; color: rgba(0,168,255,0.9); font-weight: 500; }

/* Home Overlay */
.home-overlay {
    position: fixed;
    inset: 0;
    z-index: 9998;
    display: flex;
    align-items: center;
    justify-content: center;
    background: radial-gradient(1200px 800px at 30% 20%, rgba(0,168,255,0.12), transparent 60%),
                radial-gradient(1000px 700px at 70% 80%, rgba(255,99,132,0.10), transparent 55%),
                linear-gradient(135deg, #0f0f10 0%, #17181a 100%);
}
.home-overlay.hidden { display: none !important; }
.home-overlay-gradient {
    position: absolute;
    inset: 0;
    pointer-events: none;
    background: radial-gradient(600px 400px at 50% 0%, rgba(255,255,255,0.06), transparent),
                radial-gradient(1000px 1000px at -10% 110%, rgba(0,168,255,0.10), transparent),
                radial-gradient(1000px 1000px at 110% -10%, rgba(255,99,132,0.10), transparent);
    filter: blur(20px);
}
.home-overlay-content {
    width: min(1200px, 92vw);
    padding: 32px;
    position: relative;
}
.home-hero {
    background: rgba(255,255,255,0.04);
    border: 1px solid rgba(255,255,255,0.08);
    border-radius: 24px;
    padding: 28px;
    box-shadow: 0 30px 80px rgba(0,0,0,0.50), inset 0 1px 0 rgba(255,255,255,0.06);
    backdrop-filter: blur(14px);
    text-align: center;
}
.brand-badge {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 10px 14px;
    border-radius: 999px;
    background: linear-gradient(135deg, rgba(0,168,255,0.2), rgba(0,168,255,0.06));
    border: 1px solid rgba(0,168,255,0.35);
    color: #dff3ff;
    box-shadow: 0 6px 20px rgba(0,168,255,0.18);
    margin: 0 auto 18px;
}
.brand-badge i { color: #00a8ff; }
.brand-badge span { font-weight: 600; letter-spacing: 0.2px; }
.home-title {
    font-size: clamp(22px, 4vw, 34px);
    line-height: 1.15;
    font-weight: 700;
    margin: 8px 0 22px 0;
    background: linear-gradient(180deg, #ffffff, #b9dfff);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    text-shadow: 0 6px 30px rgba(0,168,255,0.12);
}
.models-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 22px;
}
.model-card {
    position: relative;
    background: radial-gradient(500px 300px at 50% 0%, rgba(255,255,255,0.05), transparent), rgba(255,255,255,0.03);
    border: 1px solid rgba(255,255,255,0.08);
    border-radius: 20px;
    padding: 14px;
    box-shadow: 0 18px 50px rgba(0,0,0,0.45), inset 0 1px 0 rgba(255,255,255,0.05);
    transition: transform 0.6s cubic-bezier(0.2, 0.8, 0.2, 1), box-shadow 0.4s ease, border-color 0.3s ease;
}
.model-card:hover {
    transform: none;
    border-color: rgba(255,255,255,0.08);
    box-shadow: 0 18px 50px rgba(0,0,0,0.45), inset 0 1px 0 rgba(255,255,255,0.05);
}
.model-label {
    position: absolute;
    bottom: 12px;
    left: 14px;
    font-size: 12px;
    opacity: 0.75;
    background: rgba(0,0,0,0.35);
    border: 1px solid rgba(255,255,255,0.06);
    padding: 6px 10px;
    border-radius: 999px;
}
.cta-btn {
    margin: 26px auto 6px auto;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 14px 22px;
    border-radius: 14px;
    border: 0;
    color: #0a0a0a;
    font-weight: 700;
    font-size: 16px;
    cursor: pointer;
    background: linear-gradient(135deg, #00e1ff 0%, #00a8ff 40%, #7c4dff 100%);
    box-shadow: 0 14px 40px rgba(0,168,255,0.45);
    position: relative;
    overflow: hidden;
}
.cta-btn:hover { box-shadow: 0 16px 48px rgba(0,168,255,0.6); transform: translateY(-1px); }
.cta-btn:active { transform: translateY(0); }
.cta-glow {
    position: absolute;
    display: none;
    inset: -1px;
    border-radius: inherit;
    background: radial-gradient(120px 80px at var(--mx,50%) var(--my,50%), rgba(255,255,255,0.35), transparent 60%);
    mix-blend-mode: overlay;
    pointer-events: none;
}
.cta-btn:hover .cta-glow { filter: blur(6px); }

@media (max-width: 860px) {
    .models-row { grid-template-columns: 1fr; }
}

/* =============================================================
   Liquid Glass + Interactive 3D Tilt (2025-09)
   ============================================================= */

/* Apple-like liquid glass surface */
.liquid-glass {
    position: relative;
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.12);
    backdrop-filter: blur(14px) saturate(140%);
    -webkit-backdrop-filter: blur(14px) saturate(140%);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.45), inset 0 1px 0 rgba(255, 255, 255, 0.06);
    overflow: hidden;
}

/* Gradient border ring */
.liquid-glass::before {
    content: '';
    position: absolute;
    inset: -1px;
    border-radius: inherit;
    padding: 1px;
    background: linear-gradient(135deg, rgba(255,255,255,0.16), rgba(0,168,255,0.35), rgba(124,77,255,0.22));
    -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    pointer-events: none;
    opacity: 0.9;
}

/* Cursor spotlight/specular highlight */
.liquid-glass::after {
    content: '';
    position: absolute;
    inset: 0;
    pointer-events: none;
    background: none;
    mix-blend-mode: soft-light;
    transition: opacity 0.25s ease, transform 0.25s ease;
    opacity: 0;
}

.liquid-glass:is(:hover, :focus-within) {
    border-color: rgba(255, 255, 255, 0.18);
    box-shadow: 0 24px 70px rgba(0, 0, 0, 0.55), 0 0 0 1px rgba(255,255,255,0.06) inset;
}

/* Performance-lite: reduce heavy effects */
.perf-lite .liquid-glass {
    backdrop-filter: blur(6px) saturate(110%) !important;
    -webkit-backdrop-filter: blur(6px) saturate(110%) !important;
    box-shadow: none !important;
}

/* 3D tilt container */
.tilt-3d {
    transform-style: preserve-3d;
    will-change: transform;
    transition: transform 60ms cubic-bezier(0.25, 0.46, 0.45, 0.94), box-shadow 80ms ease;
}

.tilt-3d .tilt-glow {
    position: absolute;
    display: none;
    inset: 0;
    pointer-events: none;
    border-radius: inherit;
    background: radial-gradient(200px 140px at var(--mx, 50%) var(--my, 50%), rgba(0,168,255,0.18), transparent 60%);
    mix-blend-mode: overlay;
    opacity: 0;
    transition: opacity 0.1s ease;
}

.tilt-3d:hover .tilt-glow { opacity: 0; }

@media (prefers-reduced-motion: reduce) {
    .tilt-3d { transition: none; }
}