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

:root {
    --primary-blue: #3b82f6;
    --light-blue: #60a5fa;
    --teal: #14b8a6;
    --yellow: #eab308;
    --orange: #f97316;
    --red: #ef4444;
    --green: #10b981;
    --purple: #8b5cf6;
    --pink: #ec4899;
    --white: #ffffff;
    --gray-50: #f9fafb;
    --gray-100: #f3f4f6;
    --gray-200: #e5e7eb;
    --gray-300: #d1d5db;
    --gray-400: #9ca3af;
    --gray-500: #6b7280;
    --gray-600: #4b5563;
    --gray-700: #374151;
    --gray-800: #1f2937;
    --gray-900: #111827;
    --gradient-primary: linear-gradient(135deg, #3b82f6 0%, #14b8a6 100%);
    --gradient-warm: linear-gradient(135deg, #eab308 0%, #f97316 100%);
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-full: 9999px;
}

body {
    font-family: 'Poppins', 'Nunito', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: linear-gradient(135deg, #dbeafe 0%, #ccfbf1 100%);
    color: var(--gray-800);
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

@media (max-width: 768px) {
    body {
        padding: 0;
        align-items: flex-start;
    }
}

.screen {
    display: none;
    min-height: 100vh;
    max-width: 428px;
    width: 100%;
    margin: 0 auto;
    background: var(--white);
    position: relative;
    overflow-y: auto;
    overflow-x: hidden;
    border-radius: 0;
    box-shadow: none;
}

@media (min-width: 768px) {
    .screen {
        min-height: calc(100vh - 40px);
        border-radius: var(--radius-xl);
        box-shadow: var(--shadow-xl);
        margin: 20px auto;
    }
}

.screen.active {
    display: flex;
    flex-direction: column;
}

#splash-screen {
    background: var(--gradient-primary);
    justify-content: center;
    align-items: center;
    color: var(--white);
}

.splash-container {
    width: 100%;
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

.splash-content {
    text-align: center;
    animation: fadeInUp 0.8s ease-out;
}

.splash-logo {
    width: 120px;
    height: 120px;
    border-radius: var(--radius-xl);
    object-fit: cover;
    margin: 0 auto 24px;
    box-shadow: var(--shadow-xl);
    animation: fadeInUp 0.8s ease-out 0.4s both;
}

.splash-title {
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 8px;
    font-family: 'Nunito', sans-serif;
    animation: fadeIn 1s ease-out 0.4s both;
}

.splash-subtitle {
    font-size: 14px;
    opacity: 0.7;
    margin-bottom: 32px;
    animation: fadeIn 1s ease-out 0.6s both;
}

.splash-loader {
    display: flex;
    gap: 8px;
    justify-content: center;
    margin-top: 32px;
    animation: fadeIn 1s ease-out 0.8s both;
}

.loader-dot {
    width: 8px;
    height: 8px;
    background: var(--white);
    border-radius: 50%;
    animation: bounce 1.4s ease-in-out infinite;
}

.loader-dot:nth-child(2) {
    animation-delay: 0.2s;
}

.loader-dot:nth-child(3) {
    animation-delay: 0.4s;
}

.screen-header {
    display: flex;
    align-items: center;
    padding: 16px 20px;
    background: var(--white);
    border-bottom: 1px solid var(--gray-200);
    position: sticky;
    top: 0;
    z-index: 10;
    box-shadow: var(--shadow-sm);
}

.back-btn {
    background: none;
    border: none;
    width: 40px;
    height: 40px;
    border-radius: var(--radius-full);
    background: var(--white);
    box-shadow: var(--shadow-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--gray-700);
    cursor: pointer;
    margin-right: 12px;
    transition: all 0.2s;
}

.back-btn:hover {
    background: var(--gray-50);
    transform: scale(1.05);
}

.back-btn svg {
    width: 20px;
    height: 20px;
}

.screen-title-text {
    font-size: 20px;
    font-weight: 600;
    color: var(--gray-800);
}

.screen-content {
    flex: 1;
    padding: 24px 20px;
    padding-bottom: 100px;
}

.connection-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.connection-icon-wrapper {
    width: 80px;
    height: 80px;
    margin: 40px auto 24px;
    background: var(--gradient-primary);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    animation: scaleIn 0.8s ease-out;
}

.connection-icon {
    width: 40px;
    height: 40px;
    color: var(--white);
}

.connection-subtitle {
    font-size: 16px;
    color: var(--gray-600);
    margin-bottom: 32px;
}

.connection-status {
    width: 100%;
    margin-bottom: 24px;
}

.scanning-indicator {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 16px;
    padding: 40px;
}

.spinner {
    width: 48px;
    height: 48px;
    border: 4px solid var(--gray-200);
    border-top-color: var(--primary-blue);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

.no-devices {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 16px;
    padding: 40px;
    color: var(--gray-400);
}

.no-devices svg {
    width: 64px;
    height: 64px;
}

.device-list {
    width: 100%;
    margin-bottom: 24px;
}

.device-item {
    background: var(--white);
    border: 2px solid var(--gray-200);
    border-radius: var(--radius-md);
    padding: 16px;
    margin-bottom: 12px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    transition: all 0.2s;
    box-shadow: var(--shadow-sm);
}

.device-item:hover {
    border-color: var(--primary-blue);
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.device-item-info {
    flex: 1;
}

.device-item-name {
    font-weight: 600;
    margin-bottom: 4px;
    color: var(--gray-800);
}

.device-item-details {
    font-size: 12px;
    color: var(--gray-500);
}

.control-header {
    padding: 16px 20px;
    background: var(--white);
    border-bottom: 1px solid var(--gray-200);
}

.connection-status-card {
    background: var(--white);
    border-radius: var(--radius-md);
    padding: 16px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: var(--shadow-sm);
}

.connection-info {
    display: flex;
    align-items: center;
    gap: 12px;
}

.connection-icon-small {
    width: 40px;
    height: 40px;
    background: var(--gradient-primary);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
}

.connection-icon-small svg {
    width: 20px;
    height: 20px;
    color: var(--white);
}

.connection-details {
    display: flex;
    flex-direction: column;
}

.connection-status-text {
    color: var(--green);
    font-weight: 600;
    font-size: 14px;
}

.device-name {
    font-size: 12px;
    color: var(--gray-500);
}

.battery-info {
    display: flex;
    align-items: center;
    gap: 6px;
    font-weight: 600;
    color: var(--gray-700);
}

.battery-info svg {
    width: 20px;
    height: 20px;
}

.section-title {
    font-size: 24px;
    font-weight: 600;
    margin-bottom: 24px;
    color: var(--gray-800);
}

.control-buttons-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
    margin-bottom: 24px;
}

.control-btn {
    background: var(--white);
    border: 2px solid var(--gray-200);
    border-radius: var(--radius-lg);
    padding: 20px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    cursor: pointer;
    transition: all 0.3s;
    box-shadow: var(--shadow-sm);
    min-height: 96px;
}

.control-btn:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.control-btn:active {
    transform: translateY(-2px);
}

.control-btn svg {
    width: 32px;
    height: 32px;
}

.control-btn.btn-open {
    border-color: var(--primary-blue);
    color: var(--primary-blue);
    background: linear-gradient(135deg, #dbeafe 0%, #ffffff 100%);
}

.control-btn.btn-close {
    border-color: var(--teal);
    color: var(--teal);
    background: linear-gradient(135deg, #ccfbf1 0%, #ffffff 100%);
}

.control-btn.btn-light-grip {
    border-color: var(--yellow);
    color: var(--gray-800);
    background: linear-gradient(135deg, #fef9c3 0%, #ffffff 100%);
}

.control-btn.btn-strong-grip {
    border-color: var(--orange);
    color: var(--orange);
    background: linear-gradient(135deg, #fed7aa 0%, #ffffff 100%);
}

.control-btn.btn-stop {
    grid-column: 1 / -1;
    border-color: var(--red);
    color: var(--red);
    background: linear-gradient(135deg, #fee2e2 0%, #ffffff 100%);
}

.control-btn.active {
    box-shadow: 0 0 0 4px rgba(59, 130, 246, 0.3);
}

.grip-slider-card {
    background: var(--gray-50);
    border-radius: var(--radius-lg);
    padding: 24px;
    margin-bottom: 24px;
}

.slider-title {
    font-weight: 600;
    margin-bottom: 16px;
    color: var(--gray-800);
}

.slider-container {
    position: relative;
}

.grip-slider {
    width: 100%;
    height: 8px;
    border-radius: 4px;
    background: var(--gray-300);
    outline: none;
    -webkit-appearance: none;
    appearance: none;
}

.grip-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: var(--gradient-primary);
    cursor: pointer;
    box-shadow: var(--shadow-md);
}

.grip-slider::-moz-range-thumb {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: var(--gradient-primary);
    cursor: pointer;
    border: none;
    box-shadow: var(--shadow-md);
}

.nav-buttons-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
}

.nav-card-btn {
    background: var(--white);
    border: 2px solid var(--gray-200);
    border-radius: var(--radius-md);
    padding: 20px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    transition: all 0.2s;
    min-height: 80px;
}

.nav-card-btn:hover {
    border-color: var(--primary-blue);
    background: var(--gray-50);
    transform: translateY(-2px);
}

.nav-card-btn svg {
    width: 24px;
    height: 24px;
    color: var(--primary-blue);
}

.nav-card-btn span {
    font-size: 14px;
    font-weight: 500;
    color: var(--gray-700);
}

.voice-btn {
    position: fixed;
    bottom: 100px;
    right: 24px;
    width: 64px;
    height: 64px;
    border-radius: var(--radius-full);
    background: var(--gradient-primary);
    border: none;
    color: var(--white);
    cursor: pointer;
    box-shadow: var(--shadow-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 99;
    transition: all 0.3s;
}

.voice-btn:hover {
    transform: scale(1.1);
    box-shadow: var(--shadow-xl);
}

.voice-btn.listening {
    animation: pulse-glow 1.5s ease-in-out infinite;
}

.voice-btn svg {
    width: 28px;
    height: 28px;
}

.hand-animation-screen {
    background: linear-gradient(135deg, #dbeafe 0%, #e0f2fe 100%);
}

.hand-animation-container {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 40px 20px;
    min-height: calc(100vh - 80px);
}

.hand-wrapper {
    width: 100%;
    max-width: 300px;
    height: 450px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 40px;
    position: relative;
}

.hand-model {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.hand-svg {
    width: 100%;
    height: 100%;
    filter: drop-shadow(0 10px 30px rgba(0, 0, 0, 0.2));
}

.hand-video {
    width: 100%;
    height: 100%;
    object-fit: contain;
    filter: drop-shadow(0 10px 30px rgba(0, 0, 0, 0.2));
    border-radius: var(--radius-lg);
}

.hand-svg .finger,
.hand-svg .thumb,
.hand-svg .palm {
    transform-origin: 50% 90%;
    will-change: transform, opacity;
}

.hand-svg .thumb {
    transform-origin: 50% 80%;
}

.hand-svg .palm {
    transform-origin: center;
}

.hand-open-animation {
    animation: handAppear 0.8s ease-out;
}

.hand-open-animation .finger {
    animation: openFingers 1.4s cubic-bezier(0.25, 0.46, 0.45, 0.94) 0.3s both;
}

.hand-open-animation .thumb {
    animation: openThumb 1.4s cubic-bezier(0.25, 0.46, 0.45, 0.94) 0.3s both;
}

.hand-open-animation .palm {
    animation: palmOpen 1.4s cubic-bezier(0.25, 0.46, 0.45, 0.94) 0.3s both;
}

.hand-close-animation {
    animation: handAppear 0.8s ease-out;
}

.hand-close-animation .finger {
    animation: closeFingers 1.4s cubic-bezier(0.25, 0.46, 0.45, 0.94) 0.3s both;
}

.hand-close-animation .thumb {
    animation: closeThumb 1.4s cubic-bezier(0.25, 0.46, 0.45, 0.94) 0.3s both;
}

.hand-close-animation .palm {
    animation: palmClose 1.4s cubic-bezier(0.25, 0.46, 0.45, 0.94) 0.3s both;
}

.hand-light-grip-animation {
    animation: handAppear 0.8s ease-out;
}

.hand-light-grip-animation .finger {
    animation: lightGripFingers 1.4s cubic-bezier(0.25, 0.46, 0.45, 0.94) 0.3s both;
}

.hand-light-grip-animation .thumb {
    animation: lightGripThumb 1.4s cubic-bezier(0.25, 0.46, 0.45, 0.94) 0.3s both;
}

.hand-light-grip-animation .palm {
    animation: pulseLight 2s ease-in-out infinite;
}

.hand-strong-grip-animation {
    animation: handAppear 0.8s ease-out;
}

.hand-strong-grip-animation .finger {
    animation: strongGripFingers 1.4s cubic-bezier(0.25, 0.46, 0.45, 0.94) 0.3s both;
}

.hand-strong-grip-animation .thumb {
    animation: strongGripThumb 1.4s cubic-bezier(0.25, 0.46, 0.45, 0.94) 0.3s both;
}

.hand-strong-grip-animation .palm {
    animation: pulseStrong 1.5s ease-in-out infinite;
}

.animation-status {
    text-align: center;
    width: 100%;
    max-width: 300px;
}

.status-text {
    font-size: 24px;
    font-weight: 600;
    color: var(--gray-800);
    margin-bottom: 24px;
    animation: fadeInUp 0.6s ease-out;
}

.bluetooth-indicator {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    padding: 16px 24px;
    background: var(--white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    animation: fadeInUp 0.8s ease-out;
}

.bluetooth-indicator svg {
    width: 24px;
    height: 24px;
    color: var(--primary-blue);
    animation: pulse 2s ease-in-out infinite;
}

.bluetooth-indicator span {
    font-weight: 600;
    color: var(--gray-700);
    font-family: 'Courier New', monospace;
    font-size: 14px;
}

@keyframes handAppear {
    from {
        opacity: 0;
        transform: scale(0.8) translateY(20px);
    }
    to {
        opacity: 1;
        transform: scale(1) translateY(0);
    }
}

@keyframes openFingers {
    from { transform: rotate(45deg); }
    to { transform: rotate(0deg); }
}

@keyframes openThumb {
    from { transform: rotate(60deg); }
    to { transform: rotate(45deg); }
}

@keyframes closeFingers {
    from { transform: rotate(0deg); }
    to { transform: rotate(45deg); }
}

@keyframes closeThumb {
    from { transform: rotate(45deg); }
    to { transform: rotate(60deg); }
}

@keyframes lightGripFingers {
    from { transform: rotate(0deg); }
    to { transform: rotate(15deg); }
}

@keyframes lightGripThumb {
    from { transform: rotate(45deg); }
    to { transform: rotate(35deg); }
}

@keyframes strongGripFingers {
    from { transform: rotate(0deg); }
    to { transform: rotate(60deg); }
}

@keyframes strongGripThumb {
    from { transform: rotate(45deg); }
    to { transform: rotate(70deg); }
}

@keyframes pulseLight {
    0%, 100% { transform: scale(1); opacity: 1; }
    50% { transform: scale(1.02); opacity: 0.95; }
}

@keyframes pulseStrong {
    0%, 100% { transform: scale(1); opacity: 1; }
    50% { transform: scale(1.05); opacity: 0.9; }
}

.calibration-idle {
    text-align: center;
    padding: 40px 0;
}

.calibration-icon-wrapper {
    width: 96px;
    height: 96px;
    margin: 0 auto 24px;
    background: var(--gradient-primary);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
}

.calibration-icon-wrapper svg {
    width: 48px;
    height: 48px;
    color: var(--white);
}

.calibration-instruction {
    color: var(--gray-600);
    margin-bottom: 32px;
    padding: 0 20px;
    line-height: 1.6;
}

.calibration-active {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.calibration-step-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: 24px;
    box-shadow: var(--shadow-sm);
}

.step-title {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--gray-800);
}

.step-instruction {
    color: var(--gray-600);
    margin-bottom: 16px;
    line-height: 1.6;
}

.progress-container {
    margin-top: 16px;
}

.progress-label {
    font-size: 14px;
    color: var(--gray-500);
    margin-bottom: 8px;
}

.progress-bar {
    width: 100%;
    height: 8px;
    background: var(--gray-200);
    border-radius: 4px;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background: var(--gradient-primary);
    border-radius: 4px;
    transition: width 0.3s;
    width: 0%;
}

.emg-waveform-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: 24px;
    box-shadow: var(--shadow-sm);
}

.waveform-title {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 16px;
    color: var(--gray-700);
}

.waveform-container {
    background: var(--gray-50);
    border-radius: var(--radius-md);
    padding: 20px;
    position: relative;
    height: 160px;
}

#emg-waveform {
    width: 100%;
    height: 128px;
    display: block;
}

.emg-value-display {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 32px;
    font-weight: 700;
    color: var(--primary-blue);
}

.calibration-complete {
    text-align: center;
    padding: 40px 0;
}

.success-icon-wrapper {
    width: 96px;
    height: 96px;
    margin: 0 auto 24px;
    background: var(--green);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    animation: scaleIn 0.5s ease-out;
}

.success-icon-wrapper svg {
    width: 48px;
    height: 48px;
    color: var(--white);
}

.success-title {
    font-size: 24px;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--gray-800);
}

.success-message {
    color: var(--gray-600);
    margin-bottom: 32px;
}

.training-content {
    padding: 0;
}

.training-start {
    text-align: center;
    padding: 60px 20px;
}

.trophy-icon-wrapper {
    width: 96px;
    height: 96px;
    margin: 0 auto 24px;
    background: var(--gradient-warm);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
}

.trophy-icon-wrapper svg {
    width: 48px;
    height: 48px;
    color: var(--white);
}

.training-instruction {
    color: var(--gray-600);
    margin-bottom: 32px;
    padding: 0 20px;
    line-height: 1.6;
}

.training-start-btn {
    background: var(--gradient-warm);
    color: var(--gray-800);
}

.training-game {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.game-stats {
    display: flex;
    gap: 12px;
}

.stat-card {
    flex: 1;
    background: var(--white);
    border-radius: var(--radius-md);
    padding: 16px;
    text-align: center;
    box-shadow: var(--shadow-sm);
}

.stat-label {
    font-size: 12px;
    color: var(--gray-600);
    margin-bottom: 4px;
}

.stat-value {
    font-size: 24px;
    font-weight: 700;
    color: var(--primary-blue);
}

.game-area {
    position: relative;
    height: 384px;
    background: linear-gradient(135deg, #dbeafe 0%, #ccfbf1 100%);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.basket {
    position: absolute;
    bottom: 16px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 64px;
    background: var(--gradient-primary);
    border-radius: 24px 24px 0 0;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-lg);
    transition: left 0.3s;
}

.ball {
    position: absolute;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    box-shadow: var(--shadow-md);
    animation: fall 3s linear;
}

@keyframes fall {
    to {
        transform: translateY(calc(384px - 40px));
    }
}

.game-controls {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
}

.btn-move {
    height: 64px;
    background: var(--primary-blue);
    color: var(--white);
    border: none;
    border-radius: var(--radius-md);
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
}

.btn-move:hover {
    background: var(--light-blue);
    transform: translateY(-2px);
}

.btn-catch {
    width: 100%;
    height: 80px;
    background: linear-gradient(135deg, var(--green) 0%, var(--teal) 100%);
    color: var(--white);
    border: none;
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: 18px;
    cursor: pointer;
    transition: all 0.2s;
    box-shadow: var(--shadow-md);
}

.btn-catch:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.training-end {
    text-align: center;
    padding: 60px 20px;
}

.game-over-title {
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 8px;
    color: var(--gray-800);
}

.final-score-label {
    color: var(--gray-600);
    margin-bottom: 4px;
}

.final-score-value {
    font-size: 48px;
    font-weight: 700;
    color: var(--primary-blue);
    margin-bottom: 32px;
}

.progress-stats-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
    margin-bottom: 24px;
}

.progress-stat-card {
    background: var(--white);
    border-radius: var(--radius-md);
    padding: 16px;
    text-align: center;
    box-shadow: var(--shadow-sm);
}

.stat-label-small {
    font-size: 12px;
    color: var(--gray-500);
    margin-bottom: 4px;
}

.stat-value-large {
    font-size: 20px;
    font-weight: 700;
    color: var(--primary-blue);
}

.chart-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: 20px;
    margin-bottom: 16px;
    box-shadow: var(--shadow-sm);
}

.chart-title {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 16px;
    color: var(--gray-800);
}

.chart-card canvas {
    width: 100%;
    height: 200px;
}

.badges-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: 24px;
    box-shadow: var(--shadow-sm);
}

.badges-title {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 16px;
    color: var(--gray-800);
}

.badges-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
}

.badge-item {
    background: var(--gray-50);
    border: 2px solid var(--gray-200);
    border-radius: var(--radius-md);
    padding: 20px;
    text-align: center;
    transition: all 0.2s;
}

.badge-item.earned {
    border-color: var(--yellow);
    background: linear-gradient(135deg, #fef9c3 0%, #ffffff 100%);
}

.badge-item.locked {
    opacity: 0.5;
}

.badge-item svg {
    width: 32px;
    height: 32px;
    margin-bottom: 8px;
    color: var(--primary-blue);
}

.badge-item.earned svg {
    color: var(--yellow);
}

.badge-item p {
    font-size: 14px;
    font-weight: 600;
    color: var(--gray-800);
}

.settings-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: 24px;
    margin-bottom: 16px;
    box-shadow: var(--shadow-sm);
}

.settings-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 16px;
}

.settings-header svg {
    width: 20px;
    height: 20px;
    color: var(--primary-blue);
}

.settings-header h3 {
    font-size: 18px;
    font-weight: 600;
    color: var(--gray-800);
}

.settings-select {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid var(--gray-200);
    border-radius: var(--radius-md);
    font-size: 16px;
    background: var(--white);
    color: var(--gray-800);
    cursor: pointer;
    transition: all 0.2s;
}

.settings-select:hover {
    border-color: var(--primary-blue);
}

.settings-select:focus {
    outline: none;
    border-color: var(--primary-blue);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.toggle-container {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.toggle-label {
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
}

.toggle-label span:first-child {
    font-weight: 500;
    color: var(--gray-800);
}

.toggle-label input {
    display: none;
}

.toggle-slider {
    width: 48px;
    height: 28px;
    background: var(--gray-300);
    border-radius: 14px;
    position: relative;
    transition: background 0.3s;
}

.toggle-slider::after {
    content: '';
    position: absolute;
    width: 22px;
    height: 22px;
    background: var(--white);
    border-radius: 50%;
    top: 3px;
    left: 3px;
    transition: transform 0.3s;
    box-shadow: var(--shadow-sm);
}

.toggle-label input:checked + .toggle-slider {
    background: var(--primary-blue);
}

.toggle-label input:checked + .toggle-slider::after {
    transform: translateX(20px);
}

.logs-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.log-item {
    background: var(--white);
    border-left: 4px solid var(--gray-300);
    border-radius: var(--radius-md);
    padding: 16px;
    box-shadow: var(--shadow-sm);
}

.log-item.success {
    border-left-color: var(--green);
    background: linear-gradient(90deg, #d1fae5 0%, #ffffff 100%);
}

.log-item.error {
    border-left-color: var(--red);
    background: linear-gradient(90deg, #fee2e2 0%, #ffffff 100%);
}

.log-item.info {
    border-left-color: var(--primary-blue);
    background: linear-gradient(90deg, #dbeafe 0%, #ffffff 100%);
}

.log-item-header {
    display: flex;
    align-items: start;
    gap: 12px;
}

.log-icon {
    width: 20px;
    height: 20px;
    margin-top: 2px;
}

.log-content {
    flex: 1;
}

.log-message {
    font-weight: 500;
    margin-bottom: 4px;
    color: var(--gray-800);
}

.log-timestamp {
    font-size: 12px;
    color: var(--gray-500);
}

.log-badge {
    padding: 4px 8px;
    border-radius: var(--radius-full);
    font-size: 10px;
    font-weight: 600;
}

.log-badge.success {
    background: var(--green);
    color: var(--white);
}

.log-badge.error {
    background: var(--red);
    color: var(--white);
}

.log-badge.info {
    background: var(--primary-blue);
    color: var(--white);
}

.about-app-card {
    text-align: center;
    padding: 40px 20px;
    background: var(--white);
    border-radius: var(--radius-lg);
    margin-bottom: 16px;
    box-shadow: var(--shadow-sm);
}

.app-logo-large {
    width: 100px;
    height: 100px;
    margin: 0 auto 20px;
    background: var(--gradient-primary);
    border-radius: var(--radius-xl);
    display: flex;
    align-items: center;
    justify-content: center;
}

.app-logo-large svg {
    width: 56px;
    height: 56px;
    color: var(--white);
}

.about-app-card h2 {
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 8px;
    color: var(--gray-800);
}

.version-text {
    color: var(--gray-500);
    font-size: 14px;
}

.about-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: 24px;
    margin-bottom: 16px;
    box-shadow: var(--shadow-sm);
}

.about-card.safety-card {
    background: linear-gradient(135deg, #fef3c7 0%, #ffffff 100%);
    border: 2px solid #fbbf24;
}

.about-card-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 16px;
}

.about-card-header svg {
    width: 20px;
    height: 20px;
    color: var(--orange);
}

.about-card-header h3 {
    font-size: 18px;
    font-weight: 600;
    color: var(--gray-800);
}

.about-card p {
    color: var(--gray-700);
    line-height: 1.6;
}

.steps-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.steps-list p {
    color: var(--gray-700);
    line-height: 1.6;
}

.made-with {
    text-align: center;
    padding: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    color: var(--gray-600);
}

.made-with svg {
    width: 16px;
    height: 16px;
    color: var(--red);
    fill: var(--red);
}

.voice-modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(4px);
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    animation: fadeIn 0.3s;
}

.voice-modal-content {
    background: var(--white);
    border-radius: var(--radius-xl);
    padding: 32px;
    max-width: 400px;
    width: 100%;
    animation: scaleIn 0.3s;
}

.voice-modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
}

.voice-modal-header h3 {
    font-size: 20px;
    font-weight: 600;
    color: var(--gray-800);
}

.close-btn {
    width: 32px;
    height: 32px;
    border-radius: var(--radius-full);
    background: var(--gray-100);
    border: none;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.2s;
}

.close-btn:hover {
    background: var(--gray-200);
}

.close-btn svg {
    width: 20px;
    height: 20px;
    color: var(--gray-600);
}

.voice-control-content {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.voice-mic-button {
    width: 128px;
    height: 128px;
    border-radius: var(--radius-full);
    background: var(--gradient-primary);
    border: none;
    color: var(--white);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 24px;
    transition: all 0.3s;
    box-shadow: var(--shadow-lg);
}

.voice-mic-button:hover {
    transform: scale(1.05);
}

.voice-mic-button.listening {
    background: linear-gradient(135deg, var(--red) 0%, var(--pink) 100%);
    animation: pulse-glow 1.5s ease-in-out infinite;
}

.voice-mic-button svg {
    width: 64px;
    height: 64px;
}

.voice-status {
    color: var(--gray-700);
    margin-bottom: 24px;
    font-weight: 500;
}

.voice-commands {
    width: 100%;
}

.voice-commands-label {
    font-size: 14px;
    color: var(--gray-500);
    margin-bottom: 12px;
    text-align: center;
}

.voice-commands-list {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    justify-content: center;
}

.voice-commands-list span {
    padding: 8px 12px;
    background: var(--blue-50);
    color: var(--primary-blue);
    border-radius: var(--radius-full);
    font-size: 12px;
    font-weight: 500;
}

.voice-recognized {
    text-align: center;
    margin-top: 24px;
}

.voice-recognized-label {
    font-size: 14px;
    color: var(--gray-600);
    margin-bottom: 8px;
}

.voice-recognized-command {
    font-size: 20px;
    font-weight: 600;
    color: var(--green);
}

.btn-primary {
    padding: 14px 24px;
    border: none;
    border-radius: var(--radius-md);
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
    font-family: 'Poppins', sans-serif;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    background: var(--gradient-primary);
    color: var(--white);
    box-shadow: var(--shadow-md);
}

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

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

.btn-large {
    padding: 18px 32px;
    font-size: 18px;
    width: 100%;
}

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

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes scaleIn {
    from { transform: scale(0); }
    to { transform: scale(1); }
}

@keyframes bounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

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

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

@keyframes pulse-glow {
    0%, 100% {
        box-shadow: 0 0 20px rgba(59, 130, 246, 0.6);
    }
    50% {
        box-shadow: 0 0 30px rgba(59, 130, 246, 0.9);
    }
}

[dir="rtl"] {
    direction: rtl;
}

[dir="rtl"] .back-btn {
    transform: scaleX(-1);
}

@media (min-width: 768px) {
    .screen {
        max-width: 600px;
    }
    
    .control-buttons-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 16px;
    }
    
    .control-btn {
        min-height: 120px;
        padding: 28px;
    }
    
    .nav-buttons-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .hand-wrapper {
        max-width: 400px;
        height: 550px;
    }
    
    .progress-stats-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .screen-content {
        padding: 32px 28px;
    }
    
    .voice-btn {
        bottom: 120px;
        right: 32px;
        width: 72px;
        height: 72px;
    }
}

@media (min-width: 1024px) {
    .screen {
        max-width: 800px;
        box-shadow: 0 0 50px rgba(0, 0, 0, 0.1);
    }
    
    .control-buttons-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 20px;
    }
    
    .control-btn {
        min-height: 140px;
        padding: 32px;
        font-size: 18px;
    }
    
    .control-btn svg {
        width: 40px;
        height: 40px;
    }
    
    .nav-buttons-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 16px;
    }
    
    .nav-card-btn {
        min-height: 100px;
        padding: 24px;
    }
    
    .hand-wrapper {
        max-width: 500px;
        height: 650px;
    }
    
    .voice-btn {
        bottom: 140px;
        right: 40px;
        width: 80px;
        height: 80px;
    }
    
    .voice-modal-content {
        max-width: 500px;
        padding: 40px;
    }
    
    .voice-mic-button {
        width: 160px;
        height: 160px;
    }
}

@media (max-width: 428px) {
    .screen {
        max-width: 100%;
    }
    
    .control-buttons-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 10px;
    }
    
    .control-btn {
        min-height: 90px;
        padding: 16px;
    }
    
    .progress-stats-grid {
        grid-template-columns: 1fr;
    }
    
    .hand-wrapper {
        max-width: 280px;
        height: 400px;
    }
    
    .voice-btn {
        bottom: 90px;
        right: 20px;
        width: 56px;
        height: 56px;
    }
}

@media (hover: none) and (pointer: coarse) {
    .control-btn,
    .nav-card-btn,
    .btn-primary,
    .back-btn {
        min-height: 44px;
    }
    
    .control-btn {
        min-height: 100px;
    }
    
    .nav-card-btn {
        min-height: 80px;
    }
}