:root {
    --background: #0f1419;
    --primary-blue: #0a3179;
    --secondary-blue: #2a5298;
    --bg-dark: #0f1419;
    --accent-cyan: #CACC90;
    --accent-purple: #7DB54F;
    
    --text-primary: #333;
    --text-secondary: #666;
    --text-light: #999;
    --text-white: #fff;
    
    --bg-white: #ffffff;
    --bg-light: #f0f0f0;
    --bg-card: rgba(255, 255, 255, 0.1);
    --bg-input: #f9f9f9;
    --bg-hover: #e8f4ff;

    --controller-element: #2a2a2a;
    --controller-active: #0078d4; 
    --controller-border: #333;
    --controller-stick-bg: #ffffff;
    --controller-stick-dot: #333;
    --controller-stick-border: #333;
    
    --glass-bg: rgba(255, 255, 255, 0.1);
    --glass-border: rgba(255, 255, 255, 0.2);
    
    --button-active: #00a1f1;
    --button-disabled: #666;
    
    --shadow-glow: 0 0 20px rgba(0, 161, 241, 0.3);
}


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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: var(--background);
    color: var(--text-primary);
    min-height: 100vh;
    overflow-x: hidden;
}

header {
    text-align: center;
    padding: 0px 20px 20px;
}

header h1 {
    font-size: 2.5rem;
    background: var(--bg-white);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 10px;
    text-shadow: var(--shadow-glow);
}

header p {
    color: var(--text-secondary);
    font-size: 1.1rem;
}

.main-container {
    min-height: 95svh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding: 24px 0 32px;
}

.container {
    display: grid;
    justify-content: center;
    max-width: 1200px;
    width: 100%;
    margin: 0 auto;
    padding: 0 24px;
}


.controller-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
    min-height: 600px;
}


.info-panel {
    background: var(--bg-white);
    border-radius: 8px;
    padding: 20px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.controller-info h3 {
    margin-bottom: 15px;
    color: var(--text-primary);
    font-size: 1.2rem;
}

.controller-details {
    margin-bottom: 20px;
}

.detail-row {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 10px;
    margin-bottom: 5px;
}

.detail-row .label {
    font-weight: bold;
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.detail-row.values span {
    font-family: 'Courier New', monospace;
    color: var(--text-primary);
    font-size: 0.85rem;
}

.detail-row.values button {
    padding: 4px 8px;
    font-size: 0.8rem;
    border: 1px solid var(--text-secondary);
    border-radius: 4px;
    background: var(--text-primary);
    color: var(--text-white);
    cursor: pointer;
    transition: all 0.2s;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

.detail-row.values button:enabled:hover {
    background: #555;
    border-color: var(--text-light);
}

.detail-row.values button:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    background: var(--button-disabled);
    color: var(--text-light);
}

.haptic-info {
    margin: 20px 0;
    border-top: 1px solid #eee;
    padding-top: 15px;
}

.haptic-row {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 10px;
    margin-bottom: 5px;
}

.haptic-row .label {
    font-weight: bold;
    font-size: 0.8rem;
    color: var(--text-secondary);
}

.haptic-row.values span {
    font-family: 'Courier New', monospace;
    color: var(--text-primary);
    font-size: 0.8rem;
}

.vibration-test {
    background: #e3f2fd;
    padding: 2px 6px;
    border-radius: 3px;
    text-align: center;
    cursor: pointer;
}

.button-status {
    border-top: 1px solid #eee;
    padding-top: 20px;
}

.button-grid {
    margin-bottom: 20px;
}

.button-row {
    display: grid;
    grid-template-columns: repeat(8, 1fr);
    gap: 5px;
    margin-bottom: 8px;
}

.button-row:last-child {
    grid-template-columns: 1fr;
}

.button-row:last-child .btn-cell {
    grid-column: 1 / -1;
}

.btn-cell {
    display: flex;
    flex-direction: column;
    align-items: center;
    background: var(--bg-input);
    border: 1px solid #ddd;
    border-radius: 4px;
    padding: 5px;
    min-height: 40px;
}

.btn-label {
    font-size: 0.7rem;
    font-weight: bold;
    color: var(--text-secondary);
    margin-bottom: 2px;
}

.btn-cell span:last-child {
    font-family: 'Courier New', monospace;
    font-size: 0.8rem;
    color: var(--text-primary);
}

.axis-status {
    border-top: 1px solid #eee;
    padding-top: 15px;
}

.axis-row {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 10px;
}

.axis-cell {
    display: flex;
    flex-direction: column;
    align-items: center;
    background: var(--bg-input);
    border: 1px solid #ddd;
    border-radius: 4px;
    padding: 8px;
}

.axis-label {
    font-size: 0.7rem;
    font-weight: bold;
    color: var(--text-secondary);
    margin-bottom: 2px;
}

.axis-cell span:last-child {
    font-family: 'Courier New', monospace;
    font-size: 0.9rem;
    color: var(--text-primary);
}

.visual-panel {
    background: var(--bg-white);
    border-radius: 8px;
    padding: 20px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    display: flex;
    flex-direction: column;
}

.controller-visual{
  flex: 1;
  display: flex;
  justify-content: center;
  align-items: center;

}

.controller-outline {
    position: relative;
    background: url('images/Controller_2d.png') no-repeat center center;
    background-size: contain;
    width: 493px;
    height: 277px;
    aspect-ratio: 16/9;
    z-index: 0;
    overflow: visible !important;
}

.trigger {
    position: absolute;
    width: 40px;
    height: 35px;
    background: var(--controller-element);
    top: -19px;
}

.trigger.left-trigger {
    left: 127px;
    border-radius: 23px 17px 0 0;
    transform: rotate(-5deg);
}

.trigger.right-trigger {
    right: 127px;
    border-radius: 17px 23px 0 0;
    transform: rotate(5deg);
}

.trigger.active {
    background: var(--controller-active);
}

.shoulder {
    position: absolute;
    width: 40px;
    height: 18px;
    background: var(--controller-element);
    border-radius: 0 0 13px 13px;
    top: 20px;
}

.shoulder.left-shoulder {
    left: 130px;
    transform: rotate(-5deg);
}

.shoulder.right-shoulder {
    right: 130px;
    transform: rotate(5deg);
}

.shoulder.active {
    background: var(--controller-active);
}

.controller-body {
    position: relative;
    width: 100%;
    height: 100%;
    z-index: 1;
    overflow: visible !important;
}

.dpad {
    position: absolute;
    left: 122px;
    top: 79px;
    width: 54px;
    height: 54px;
    --thick: 20px;
    --arm: 14px;
    --tip: 10px;
}

.dpad-btn {
    position: absolute;
    background: var(--controller-element);
    border-radius: 6px;
}

.dpad-btn:nth-child(1) {
    width: var(--thick);
    height: calc(var(--arm) + var(--tip));
    top: -2px;
    left: 50%;
    transform: translateX(-50%);
    clip-path: polygon(0% 0%, 100% 0%, 100% calc(100% - var(--tip)), 50% 100%, 0% calc(100% - var(--tip)));
}

.dpad-btn:nth-child(2) {
    width: var(--thick);
    height: calc(var(--arm) + var(--tip));
    bottom: -2px;
    left: 50%;
    transform: translateX(-50%);
    clip-path: polygon(50% 0%, 100% var(--tip), 100% 100%, 0% 100%, 0% var(--tip));
}

.dpad-btn:nth-child(3) {
    width: calc(var(--arm) + var(--tip));
    height: var(--thick);
    left: -2px;
    top: 50%;
    transform: translateY(-50%);
    clip-path: polygon(0% 0%, calc(100% - var(--tip)) 0%, 100% 50%, calc(100% - var(--tip)) 100%, 0% 100%);
}

.dpad-btn:nth-child(4) {
    width: calc(var(--arm) + var(--tip));
    height: var(--thick);
    right: -2px;
    top: 50%;
    transform: translateY(-50%);
    clip-path: polygon(var(--tip) 0%, 100% 0%, 100% 100%, var(--tip) 100%, 0% 50%);
}


.dpad-btn.active {
    background: var(--controller-active);
}


.face-buttons {
    position: absolute;
    right: 110px;
    top: 70px;
    width: 72px;
    height: 72px;
}

.face-btn {
    position: absolute;
    width: 23px;
    height: 23px;
    background: var(--controller-element);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
}

.face-btn:nth-child(1) {
    top: 0;
    left: 50%;
    transform: translateX(-50%);
}

.face-btn:nth-child(2) {
    left: 0;
    top: 50%;
    transform: translateY(-50%);
}

.face-btn:nth-child(3) {
    right: 0;
    top: 50%;
    transform: translateY(-50%);
}

.face-btn:nth-child(4) {
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
}


.face-btn.active {
    background: var(--controller-active);
}

.center-buttons {
    position: absolute;
    left: 50%;
    top: 36px;
    transform: translateX(-50%);
    width: 160px;
    height: 80px;
}



#touchpad {
    width: 110px;
    height: 66px;
    top: 5px;
    left: 50%;
    transform: translateX(-50%);
    border-radius: 14px;
}

#share {
    width: 8px;
    height: 17px;
    top: 9px;
    left: 0px;
    border-radius: 4px;
}

#options {
    width: 8px;
    height: 17px;
    top: 9px;
    right: 0px;
    border-radius: 4px;
}

#ps {
    width: 19px;
    height: 19px;
    bottom: -50px;
    left: 50%;
    transform: translateX(-50%);
    border-radius: 50%;
}




.controller-visual-sticks {
    position: absolute;
    bottom: 110px;
    left: 50%;
    transform: translateX(-50%);
    width: 160px;
    height: 50px;
    display: flex !important;
    justify-content: space-between;
    align-items: center;
    pointer-events: none;
    z-index: 999;
}

.controller-stick-container {
    position: relative;
    display: flex !important;
    flex-direction: column;
    align-items: center;
    width: 50px;
    height: 50px;
}

.controller-stick-circle {
    width: 40px !important;
    height: 40px !important;
    border: 1px solid var(--controller-stick-border) !important;
    border-radius: 50%;
    position: relative;
    background: var(--controller-stick-bg) !important;
    overflow: visible;
    z-index: 1000;
    display: block !important;
}

.controller-stick-dot {
    width: 30px !important;
    height: 30px !important;
    background: var(--controller-stick-dot) !important;
    border: none !important;
    border-radius: 50%;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    transition: all 0.08s ease;
    z-index: 1001;
    display: block !important;
}

.controller-stick-circle.active {
    border-color: var(--controller-stick-border) !important;
    background: var(--controller-stick-bg) !important;
}

.controller-stick-circle.active .controller-stick-dot {
    background: var(--controller-stick-dot) !important;
}

.stick-visualizations {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
    margin: 20px 0px;
}

.stick-container {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.stick-circle {
    width: 100px;
    height: 100px;
    border: 1px solid #666;
    border-radius: 50%;
    position: relative;
    background: var(--controller-stick-bg);
    overflow: visible;
}

.stick-circle::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 0;
    right: 0;
    height: 1px;
    background: #bbb;
    transform: translateY(-50%);
}

.stick-circle::after {
    content: '';
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 1px;
    background: #bbb;
    transform: translateX(-50%);
}

.stick-circle.active {
    border-color: var(--controller-stick-border);
}

.stick-dot {
    width: 5.5px;
    height: 5.5px;
    background: var(--controller-stick-dot);
    border: none;
    border-radius: 50%;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    transition: none;
    z-index: 2;
}

.stick-circle.active .stick-dot {
    background: var(--controller-stick-dot);
}

.stick-line {
    position: absolute;
    top: 50%;
    left: 50%;
    height: 1.3px;
    background: #666;
    transform-origin: 0 50%;
    z-index: 1;
    pointer-events: none;
}

.stick-info {
    text-align: center;
    font-size: 0.8rem;
}

.diagnostics {
    margin-top: 20px;
    padding-top: 15px;
    border-top: 1px solid #eee;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.diagnostics label {
    margin-left: 10px;
    cursor: pointer;
}

.diagnostics input[type="checkbox"] {
    margin-right: 5px;
}

.btn-cell.active {
    background: var(--bg-hover);
    border-color: var(--controller-active);
}

.axis-cell.active {
    background: var(--bg-hover);
    border-color: var(--controller-active);
}

@media (max-width: 1200px) {
    .controller-layout {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .detail-row,
    .haptic-row {
        grid-template-columns: repeat(2, 1fr);
        gap: 5px;
    }
    
    .button-row {
        grid-template-columns: repeat(4, 1fr);
    }
    
    .axis-row {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .controller-outline {
        width: 250px;
        height: 160px;
    }
    
    .stick-circle {
        width: 80px;
        height: 80px;
    }
    
    .stick-dot {
        width: 10px;
        height: 10px;
    }
}


.tabs {
    display: flex;
    justify-content: center;
    margin-bottom: 30px;
    gap: 10px;
}

.tab-button {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    color: var(--text-primary);
    padding: 12px 24px;
    border-radius: 10px;
    cursor: pointer;
    font-size: 1rem;
    font-weight: 500;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.tab-button:hover {
    background: var(--glass-border);
    box-shadow: var(--shadow-glow);
    transform: translateY(-2px);
}

.tab-button.active {
    background: linear-gradient(135deg, var(--accent-cyan), var(--accent-purple));
    box-shadow: var(--shadow-glow);
    transform: translateY(-2px);
}

.tab-content .tab-panel {
    display: none;
    background: var(--bg-card);
    border-radius: 15px;
    padding: 30px;
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    border: 1px solid var(--glass-border);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

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

.controller-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 20px;
}

.ps5-controller-outline {
    position: relative;
    width: 800px;
    height: 500px;
    margin: 0 auto;
}

.controller-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: url('./controller-outline.jpg');
    background-size: contain;
    background-repeat: no-repeat;
    background-position: center;
    opacity: 0.8;
    z-index: 1;
}

.left-stick-area {
    position: absolute;
    top: 217px;
    left: 243px;
    z-index: 10;
}

.right-stick-area {
    position: absolute;
    top: 217px;
    right: 243px;
    z-index: 10;
}

.analog-stick {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
}

.stick-visual {
    width: 60px;
    height: 60px;
}


.stick-label {
    display: block;
    color: var(--accent-cyan);
    font-weight: bold;
    margin-bottom: 2px;
}

.stick-values {
    display: block;
    color: var(--text-secondary);
    font-family: 'Courier New', monospace;
}

.dpad-area {
    position: absolute;
    top: 122px;
    left: 167px;
    width: 90px;
    height: 90px;
    z-index: 10;
}

.dpad-area .dpad-btn {
    position: absolute;
    background: linear-gradient(135deg, #4a4a4a, #2a2a2a);
    border: 2px solid #333;
    color: var(--text-primary);
    cursor: pointer;
    transition: all 0.1s ease;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.dpad-up {
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 25px;
    height: 25px;
    border-radius: 5px 5px 0 0;
}

.dpad-down {
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 25px;
    height: 25px;
    border-radius: 0 0 5px 5px;
}

.dpad-left {
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 25px;
    height: 25px;
    border-radius: 5px 0 0 5px;
}

.dpad-right {
    right: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 25px;
    height: 25px;
    border-radius: 0 5px 5px 0;
}

.face-buttons-area {
    position: absolute;
    top: 115px;
    right: 155px;
    width: 110px;
    height: 110px;
    z-index: 10;
}

.face-buttons-area .face-btn {
    position: absolute;
    width: 30px;
    height: 30px;
    border-radius: 50%;
    background: linear-gradient(135deg, #4a4a4a, #2a2a2a);
    border: 2px solid #333;
    color: var(--text-primary);
    cursor: pointer;
    transition: all 0.1s ease;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    font-weight: bold;
}

.shoulder-buttons-area {
    position: absolute;
    top: 40px;
    left: 50px;
    right: 50px;
    z-index: 10;
}

.shoulder-btn {
    position: absolute;
    width: 60px;
    height: 30px;
    background: linear-gradient(135deg, #4a4a4a, #2a2a2a);
    border: 2px solid #333;
    border-radius: 5px;
    color: var(--text-primary);
    cursor: pointer;
    transition: all 0.1s ease;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
    font-size: 12px;
    font-weight: bold;
}

.l1-btn {
    left: 120px;
}

.r1-btn {
    right: 120px;
}

.trigger-buttons-area {
    position: absolute;
    top: 15px;
    left: 50px;
    right: 50px;
    z-index: 10;
}

.trigger-container {
    position: absolute;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 5px;
}

.left-trigger {
    left: 120px;
}

.right-trigger {
    right: 120px;
}

.trigger-btn {
    width: 60px;
    height: 25px;
    background: linear-gradient(135deg, #4a4a4a, #2a2a2a);
    border: 2px solid #333;
    border-radius: 8px;
    color: var(--text-primary);
    cursor: pointer;
    transition: all 0.1s ease;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
    font-size: 10px;
    font-weight: bold;
}

.trigger-indicator {
    width: 50px;
    height: 10px;
    background: #2a2a2a;
    border-radius: 4px;
    overflow: hidden;
    border: 1px solid #333;
}

.trigger-fill {
    height: 100%;
    width: 0%;
    background: linear-gradient(90deg, var(--accent-cyan), var(--accent-purple));
    transition: width 0.1s ease;
}

.center-buttons-area {
    position: absolute;
    top: 10px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 40px;
    z-index: 10;
}

.center-btn {
    position: absolute;
    background: var(--controller-element);
    border-radius: 50%;
    width: 25px;
    height: 25px;
    border: 2px solid #333;
    color: var(--text-primary);
    cursor: pointer;
    transition: all 0.1s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 10px;
    font-weight: bold;
}


.ps-btn {
    width: 35px;
    height: 35px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--accent-cyan), var(--accent-purple));
}

.touchpad-area {
    position: absolute;
    top: 90px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 10;
}

.touchpad-btn {
    width: 160px;
    height: 80px;
    background: linear-gradient(135deg, #3a3a3a, #1a1a1a);
    border: 2px solid #333;
    border-radius: 10px;
    cursor: pointer;
    transition: all 0.1s ease;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.touchpad-surface {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, transparent, rgba(0, 212, 255, 0.1));
    border-radius: 8px;
}

.dpad-area .dpad-btn.active,
.face-buttons-area .face-btn.active,
.shoulder-btn.active,
.trigger-btn.active,
.center-btn.active,
.touchpad-btn.active {
    background: var(--button-active);
}

.stick-visual.active .stick-indicator {
    background: var(--button-active);
}

.controller-status-display {
    text-align: center;
    margin-top: 20px;
}

.connection-info {
    font-size: 1.2rem;
    padding: 15px;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 10px;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.calibration-container {
    text-align: center;
}

.calibration-status {
    font-size: 1.3rem;
    margin-bottom: 20px;
    padding: 20px;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 10px;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.calibration-progress {
    margin: 20px 0;
}

.progress-bar {
    width: 100%;
    height: 10px;
    background: #333;
    border-radius: 5px;
    overflow: hidden;
    margin-bottom: 10px;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--accent-cyan), var(--accent-purple));
    width: 0%;
    transition: width 0.3s ease;
}

.calibration-btn {
    background: linear-gradient(135deg, var(--accent-cyan), var(--accent-purple));
    border: none;
    color: var(--text-primary);
    padding: 15px 30px;
    border-radius: 10px;
    font-size: 1.1rem;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: var(--shadow-glow);
}

.calibration-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 0 25px rgba(0, 212, 255, 0.5);
}

.calibration-btn:disabled {
    background: #666;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

@media (max-width: 1024px) {
    .ps5-controller-outline {
        width: 600px;
        height: 375px;
    }
    
    .left-stick-area {
        top: 190px;
        left: 110px;
    }
    
    .right-stick-area {
        top: 240px;
        right: 110px;
    }
    
    .dpad-area {
        top: 135px;
        left: 60px;
    }
    
    .face-buttons-area {
        top: 135px;
        right: 60px;
    }
}

@media (max-width: 768px) {
    .container {
        padding: 15px;
    }
    
    .ps5-controller-outline {
        width: 400px;
        height: 250px;
    }
    
    .left-stick-area {
        top: 125px;
        left: 75px;
    }
    
    .right-stick-area {
        top: 160px;
        right: 75px;
    }
    
    .dpad-area {
        top: 90px;
        left: 40px;
        width: 60px;
        height: 60px;
    }
    
    .face-buttons-area {
        top: 90px;
        right: 40px;
        width: 60px;
        height: 60px;
    }
    
    .stick-visual {
        width: 45px;
        height: 45px;
    }
    
    .stick-indicator {
        width: 15px;
        height: 15px;
    }
    
    .face-buttons-area .face-btn,
    .dpad-area .dpad-btn {
        width: 20px;
        height: 20px;
        font-size: 10px;
    }
    
    .touchpad-btn {
        width: 120px;
        height: 60px;
    }
    
    header h1 {
        font-size: 2rem;
    }
    
    .tab-button {
        padding: 10px 20px;
        font-size: 0.9rem;
    }
}



.site-footer {
    height: 5vh;
    width: 100%;
    padding: 0px 20px 32px;
    text-align: center;
    color: var(--text-light);
    font-size: 0.85rem;
}
.site-footer a {
    color: var(--accent-cyan);
    text-decoration: none;
    transition: color .2s;
}
.site-footer a:hover {
    color: var(--accent-purple);
}
.site-footer .footer-inner { max-width: 900px; margin: 0 auto; }


/* ============================================================
   Stage progress nav (shown on stage1.html / stage2.html)
   ============================================================ */
.stage-nav {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 12px;
    margin: 0 0 28px;
    flex-wrap: wrap;
}

.stage-pill {
    display: flex;
    align-items: center;
    gap: 10px;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    color: var(--text-light);
    padding: 8px 18px 8px 8px;
    border-radius: 999px;
    font-size: 0.9rem;
    font-weight: 500;
    text-decoration: none;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    transition: all 0.3s ease;
}

.stage-pill .stage-pill-num {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 26px;
    height: 26px;
    border-radius: 50%;
    background: var(--controller-element);
    color: var(--text-light);
    font-size: 0.8rem;
    font-weight: 700;
}

.stage-pill.done .stage-pill-num {
    background: linear-gradient(135deg, var(--accent-cyan), var(--accent-purple));
    color: var(--bg-dark);
}

.stage-pill.current {
    color: var(--text-white);
    border-color: var(--accent-cyan);
    box-shadow: var(--shadow-glow);
}

.stage-pill.current .stage-pill-num {
    background: linear-gradient(135deg, var(--accent-cyan), var(--accent-purple));
    color: var(--bg-dark);
}

.stage-pill.upcoming {
    opacity: 0.55;
    cursor: default;
    pointer-events: none;
}

.stage-nav-arrow {
    color: var(--text-light);
    font-size: 1rem;
}


/* ============================================================
   Welcome / landing page
   ============================================================ */
.welcome-hero {
    text-align: center;
    max-width: 720px;
    margin: 0 auto 40px;
}

.welcome-hero .eyebrow {
    display: inline-block;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    font-size: 0.78rem;
    color: var(--accent-cyan);
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    padding: 6px 14px;
    border-radius: 999px;
    margin-bottom: 18px;
}

.welcome-hero p {
    color: var(--text-secondary);
    font-size: 1.05rem;
    line-height: 1.6;
    margin-top: 14px;
}

.stage-cards {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
    max-width: 980px;
    margin: 0 auto 36px;
}

.stage-card {
    position: relative;
    background: var(--bg-card);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    padding: 28px 26px 26px;
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    display: flex;
    flex-direction: column;
    gap: 14px;
    text-decoration: none;
    color: inherit;
    transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.stage-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-glow);
}

.stage-card-step {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 38px;
    height: 38px;
    border-radius: 10px;
    background: linear-gradient(135deg, var(--accent-cyan), var(--accent-purple));
    color: var(--bg-dark);
    font-weight: 800;
    font-size: 1.1rem;
}

.stage-card h2 {
    font-size: 1.35rem;
    color: var(--text-white);
}

.stage-card p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.55;
    flex-grow: 1;
}

.stage-card ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 6px;
    margin: 4px 0 6px;
}

.stage-card ul li {
    color: var(--text-light);
    font-size: 0.85rem;
    padding-left: 18px;
    position: relative;
}

.stage-card ul li::before {
    content: "";
    position: absolute;
    left: 0;
    top: 7px;
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--accent-cyan);
}

.stage-card-cta {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    align-self: flex-start;
    background: linear-gradient(135deg, var(--accent-cyan), var(--accent-purple));
    color: var(--bg-dark);
    font-weight: 700;
    padding: 10px 20px;
    border-radius: 10px;
    font-size: 0.9rem;
    margin-top: 4px;
}

.welcome-note {
    max-width: 640px;
    margin: 0 auto;
    text-align: center;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    padding: 16px 20px;
    color: var(--text-light);
    font-size: 0.85rem;
    line-height: 1.5;
}


/* ============================================================
   Stage 2: RDM staircase calibration task
   ============================================================ */
.rdm-panel {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.rdm-status-row {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
}

.rdm-status-card {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 10px;
    padding: 12px 14px;
    text-align: center;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.rdm-status-card .rdm-status-label {
    display: block;
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--text-light);
    margin-bottom: 6px;
}

.rdm-status-card .rdm-status-value {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--text-white);
    font-family: 'Courier New', monospace;
}

.rdm-stage-wrap {
    position: relative;
    width: 100%;
    max-width: 480px;
    aspect-ratio: 1 / 1;
    margin: 0 auto;
    background: #05070a;
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.35);
}

.rdm-stage-wrap canvas {
    width: 100%;
    height: 100%;
    display: block;
}

.rdm-arrow {
    position: absolute;
    color: var(--text-light);
    font-size: 1.4rem;
    opacity: 0.35;
    transition: opacity 0.15s ease, color 0.15s ease;
    pointer-events: none;
}

.rdm-arrow.up { top: 10px; left: 50%; transform: translateX(-50%); }
.rdm-arrow.down { bottom: 10px; left: 50%; transform: translateX(-50%); }
.rdm-arrow.left { left: 10px; top: 50%; transform: translateY(-50%); }
.rdm-arrow.right { right: 10px; top: 50%; transform: translateY(-50%); }

.rdm-arrow.active {
    opacity: 1;
    color: var(--accent-cyan);
    text-shadow: var(--shadow-glow);
}

.rdm-feedback-badge {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    padding: 10px 22px;
    border-radius: 999px;
    font-weight: 700;
    font-size: 1rem;
    letter-spacing: 0.03em;
    opacity: 0;
    transition: opacity 0.15s ease;
    pointer-events: none;
}

.rdm-feedback-badge.show {
    opacity: 1;
}

.rdm-feedback-badge.correct {
    background: rgba(34, 224, 160, 0.18);
    border: 1px solid var(--accent-cyan);
    color: var(--accent-cyan);
}

.rdm-feedback-badge.incorrect {
    background: rgba(255, 90, 90, 0.15);
    border: 1px solid #ff5a5a;
    color: #ff9494;
}

.rdm-recenter-badge {
    background: rgba(255, 200, 60, 0.15);
    border: 1px solid #ffcc4d;
    color: #ffcc4d;
}

.rdm-mini-stick {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 14px;
    margin-top: 4px;
}

.rdm-mini-stick .stick-circle {
    width: 90px;
    height: 90px;
}

.rdm-instructions {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 10px;
    padding: 14px 16px;
    color: var(--text-light);
    font-size: 0.85rem;
    line-height: 1.55;
}

.rdm-instructions b {
    color: var(--controller-active);
}

.rdm-complete {
    text-align: center;
    padding: 40px 20px;
}

.rdm-complete h2 {
    font-size: 1.6rem;
    color: var(--text-white);
    margin-bottom: 10px;
}

.rdm-complete p {
    color: var(--text-secondary);
    max-width: 480px;
    margin: 0 auto 18px;
    line-height: 1.6;
}

.rdm-complete .final-coherence {
    font-family: 'Courier New', monospace;
    font-size: 2rem;
    color: var(--accent-cyan);
    text-shadow: var(--shadow-glow);
    margin-bottom: 20px;
}

.rdm-complete-stats {
    display: flex;
    justify-content: center;
    gap: 32px;
    flex-wrap: wrap;
    margin-bottom: 20px;
}

.rdm-complete-stat {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
}

.rdm-complete-stat-label {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--text-light);
}

.rdm-complete-stat-value {
    font-family: 'Courier New', monospace;
    font-size: 2rem;
    color: var(--accent-cyan);
    text-shadow: var(--shadow-glow);
}

.rdm-hidden {
    display: none !important;
}

@media (max-width: 1200px) {
    .stage-cards {
        grid-template-columns: 1fr;
    }
    .rdm-status-row {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 480px) {
    .rdm-status-row {
        grid-template-columns: 1fr;
    }
}


/* ============================================================
   Stage 2: pre-task setup panel (participant ID + handedness)
   ============================================================ */
.rdm-setup-panel {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 10px;
    padding: 16px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.rdm-setup-panel h3 {
    color: var(--text-white);
    font-size: 1rem;
    margin-bottom: 4px;
}

.rdm-field-label {
    font-size: 0.8rem;
    color: var(--text-light);
    margin-top: 6px;
}

.rdm-optional {
    text-transform: none;
    font-weight: 400;
    opacity: 0.7;
}

.rdm-text-input {
    background: var(--bg-input);
    border: 1px solid var(--glass-border);
    border-radius: 8px;
    padding: 10px 12px;
    font-size: 0.95rem;
    color: var(--text-primary);
}

.rdm-text-input:focus {
    outline: 2px solid var(--accent-cyan);
    outline-offset: 1px;
}

.rdm-choice-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
    margin-top: 4px;
}

.rdm-choice-btn {
    background: var(--bg-input);
    border: 1px solid var(--glass-border);
    color: var(--text-primary);
    padding: 12px 10px;
    border-radius: 8px;
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
}

.rdm-choice-btn:hover {
    border-color: var(--accent-cyan);
}

.rdm-choice-btn.selected {
    background: linear-gradient(135deg, var(--accent-cyan), var(--accent-purple));
    border-color: transparent;
    box-shadow: var(--shadow-glow);
}

.rdm-setup-hint {
    font-size: 0.78rem;
    color: var(--text-light);
    line-height: 1.4;
    margin-top: 2px;
}

.rdm-setup-hint.confirmed {
    color: var(--accent-cyan);
}


/* ============================================================
   Generic Likert-scale component (used in the questionnaire)
   ============================================================ */
.likert-row {
    margin: 8px 0 22px;
    padding-top: 18px;
    border-top: 1px solid var(--glass-border);
}

.likert-row:first-child {
    border-top: none;
    padding-top: 0;
}

.likert-statement {
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin-bottom: 14px;
}

.likert-scale {
    display: flex;
    justify-content: center;
    gap: 8px;
    flex-wrap: wrap;
    margin-bottom: 6px;
}

.likert-option {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    background: var(--bg-input);
    border: 1px solid var(--glass-border);
    color: var(--text-primary);
    padding: 10px 14px;
    border-radius: 10px;
    cursor: pointer;
    transition: all 0.2s ease;
    min-width: 90px;
}

.likert-option .num {
    font-family: 'Courier New', monospace;
    font-size: 1.1rem;
    font-weight: 700;
}

.likert-option .lbl {
    font-size: 0.68rem;
    color: var(--text-secondary);
    text-align: center;
}

.likert-option:hover {
    border-color: var(--accent-cyan);
}

.likert-option.selected {
    background: linear-gradient(135deg, var(--accent-cyan), var(--accent-purple));
    border-color: transparent;
    box-shadow: var(--shadow-glow);
}

.likert-option.selected .lbl {
    color: var(--text-primary);
}

.rdm-saved-msg {
    color: var(--accent-cyan);
    font-weight: 600;
    margin-bottom: 16px;
}

.rdm-choice-row.two-col { grid-template-columns: 1fr 1fr; }
.rdm-choice-row.four-col { grid-template-columns: repeat(4, 1fr); }
.rdm-choice-row.five-col { grid-template-columns: repeat(5, 1fr); }

.calibration-btn-secondary {
    background: var(--bg-input);
    border: 1px solid var(--glass-border);
    color: var(--text-primary);
    padding: 12px 22px;
    border-radius: 10px;
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
}

.calibration-btn-secondary:hover {
    border-color: var(--accent-cyan);
}

@media (max-width: 480px) {
    .rdm-choice-row {
        grid-template-columns: 1fr;
    }
    .rdm-choice-row.two-col,
    .rdm-choice-row.four-col,
    .rdm-choice-row.five-col {
        grid-template-columns: 1fr 1fr;
    }
    .likert-option {
        min-width: 58px;
        padding: 8px 10px;
    }
}
.site-footer .links, .site-footer .contribute { display: none; }


/* ============================================================
   Stage 2: result actions (redo / continue) + attempt note
   ============================================================ */
.rdm-result-actions {
    display: flex;
    justify-content: center;
    gap: 14px;
    flex-wrap: wrap;
    margin-top: 18px;
}

.rdm-attempt-note {
    font-size: 0.8rem;
    color: var(--accent-cyan);
    text-align: center;
    margin-top: 10px;
    min-height: 1em;
}


/* ============================================================
   About the Device page
   ============================================================ */
.about-layout {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 28px;
    align-items: start;
}

.about-panel {
    background: var(--bg-white);
    border-radius: 8px;
    padding: 24px 26px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.about-panel h3 {
    color: var(--text-primary);
    font-size: 1.05rem;
    margin: 18px 0 8px;
}

.about-panel h3:first-child {
    margin-top: 0;
}

.about-copy {
    color: var(--text-secondary);
    font-size: 0.92rem;
    line-height: 1.6;
}

.about-component-list,
.about-holding-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin: 0 0 6px;
}

.about-component-list li,
.about-holding-list li {
    color: var(--text-secondary);
    font-size: 0.88rem;
    line-height: 1.5;
    padding-left: 16px;
    position: relative;
}

.about-component-list li::before,
.about-holding-list li::before {
    content: "";
    position: absolute;
    left: 0;
    top: 7px;
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--controller-active);
}

.about-panel .rdm-setup-panel {
    margin-top: 20px;
    background: var(--bg-hover);
    border-color: rgba(0,0,0,0.08);
}

.about-panel .rdm-setup-panel h3 {
    color: var(--text-primary);
}

.about-panel .rdm-field-label,
.about-panel .rdm-setup-hint {
    color: var(--text-secondary);
}

.about-continue-btn {
    margin-top: 18px;
    transition: opacity 0.2s ease;
}

.about-illustration-panel {
    position: relative;
    background: var(--bg-dark);
    border-radius: 12px;
    padding: 30px 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 340px;
}

.about-illustration-panel .controller-visual {
    position: relative;
    width: 100%;
}

.about-label {
    position: absolute;
    font-size: 0.7rem;
    color: var(--text-white);
    background: rgba(0,0,0,0.55);
    border: 1px solid var(--glass-border);
    padding: 3px 8px;
    border-radius: 999px;
    white-space: nowrap;
    pointer-events: none;
}

.about-label-stick-left { top: 62%; left: 8%; }
.about-label-stick-right { top: 62%; right: 8%; }
.about-label-dpad { top: 30%; left: 2%; }
.about-label-face { top: 30%; right: 2%; }
.about-label-shoulder-l { top: -6%; left: 12%; }
.about-label-shoulder-r { top: -6%; right: 12%; }
.about-label-trigger-l { top: -16%; left: 6%; }
.about-label-trigger-r { top: -16%; right: 6%; }

@media (max-width: 1024px) {
    .about-layout {
        grid-template-columns: 1fr;
    }
}


/* ============================================================
   Stage 1: guided checklist
   ============================================================ */
.checklist-panel {
    background: var(--bg-white);
    border-radius: 8px;
    padding: 20px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.checklist-panel h3 {
    color: var(--text-primary);
    margin-bottom: 14px;
}

.checklist-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.checklist-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 10px;
    border-radius: 8px;
    background: var(--bg-input);
    opacity: 0.6;
    transition: all 0.2s ease;
}

.checklist-item.active {
    opacity: 1;
    background: var(--bg-hover);
    border: 1px solid var(--controller-active);
}

.checklist-item.done {
    opacity: 0.85;
}

.checklist-item-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: var(--controller-element);
    color: var(--text-white);
    font-size: 0.75rem;
    font-weight: 700;
    flex-shrink: 0;
}

.checklist-item.done .checklist-item-icon {
    background: var(--controller-active);
}

.checklist-item-label {
    font-size: 0.85rem;
    color: var(--text-primary);
}

.checklist-current-card {
    text-align: center;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    padding: 20px;
    margin-top: 14px;
}

.checklist-current-label {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--text-light);
    margin-bottom: 6px;
}

.checklist-current-text {
    font-size: 1.05rem;
    color: var(--text-white);
    font-weight: 600;
    margin-bottom: 14px;
}

.checklist-stick-wrap {
    display: flex;
    justify-content: center;
}

.checklist-target {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: rgba(34, 224, 160, 0.25);
    border: 2px solid var(--accent-cyan);
    transform: translate(-50%, -50%);
    display: none;
    pointer-events: none;
}


/* ============================================================
   Questionnaire (Stage 3) page
   ============================================================ */
.survey-summary {
    display: flex;
    justify-content: center;
    gap: 24px;
    flex-wrap: wrap;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 10px;
    padding: 12px 16px;
    margin-bottom: 24px;
    font-size: 0.85rem;
    color: var(--text-light);
}

.survey-summary-item b {
    color: var(--text-white);
}

.survey-section {
    background: var(--bg-white);
    border-radius: 8px;
    padding: 22px 24px;
    margin-bottom: 20px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.survey-section h3 {
    color: var(--text-primary);
    margin-bottom: 6px;
}

.survey-section-intro {
    color: var(--text-secondary);
    font-size: 0.85rem;
    margin-bottom: 16px;
}

.survey-field {
    margin-bottom: 22px;
}

.survey-field:last-child {
    margin-bottom: 0;
}

.survey-question {
    color: var(--text-primary);
    font-size: 0.92rem;
    margin-bottom: 10px;
}

.survey-readonly-answer {
    color: var(--text-secondary);
    font-size: 0.9rem;
    background: var(--bg-input);
    border-radius: 8px;
    padding: 10px 12px;
    display: inline-block;
}

.survey-textarea {
    width: 100%;
    min-height: 70px;
    background: var(--bg-input);
    border: 1px solid var(--glass-border);
    border-radius: 8px;
    padding: 10px 12px;
    font-size: 0.9rem;
    color: var(--text-primary);
    font-family: inherit;
    resize: vertical;
    margin-top: 10px;
}

.survey-textarea:focus {
    outline: 2px solid var(--accent-cyan);
    outline-offset: 1px;
}

.survey-review {
    background: var(--bg-white);
    border-radius: 8px;
    padding: 22px 24px;
    margin-bottom: 20px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.survey-review h3 {
    color: var(--text-primary);
    margin-bottom: 14px;
}

.review-block {
    color: var(--text-secondary);
    font-size: 0.88rem;
    line-height: 1.6;
    padding-bottom: 14px;
    margin-bottom: 14px;
    border-bottom: 1px solid var(--glass-border);
}

.review-block:last-child {
    border-bottom: none;
    margin-bottom: 0;
    padding-bottom: 0;
}

.review-block b {
    color: var(--text-primary);
}

.review-block ul {
    margin: 6px 0 0;
    padding-left: 18px;
}

.survey-review-actions {
    display: flex;
    justify-content: center;
    gap: 14px;
    flex-wrap: wrap;
    margin-top: 18px;
}

@media (max-width: 768px) {
    .survey-section,
    .survey-review {
        padding: 18px 16px;
    }
}