:root {
    --ninja-dark: #26272c;
    --ninja-grey: #959595;
    --ninja-light: #f5f7fa;
    --ninja-accent: #34373e;
}

body {
    font-family: 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
}

.hero-section {
    background: linear-gradient(135deg, #ffffff 0%, var(--ninja-light) 100%);
    color: var(--ninja-dark);
}

.btn-primary {
    background-color: var(--ninja-dark);
    border-color: var(--ninja-accent);
}

.btn-primary:hover {
    background-color: var(--ninja-accent);
    border-color: var(--ninja-dark);
}

.hover-card {
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    border: 1px solid rgba(0, 0, 0, 0.1);
}

.hover-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.2);
}

.practice-canvas {
    border: 2px solid var(--ninja-dark);
    border-radius: 8px;
    background: linear-gradient(135deg, #ffffff 0%, #f0f0f0 100%);
    cursor: pointer;
    touch-action: none;
}

.gesture-feedback {
    position: absolute;
    font-size: 3rem;
    pointer-events: none;
    animation: fadeOut 1s forwards;
    color: var(--ninja-dark);
}

@keyframes fadeOut {
    0% {
        opacity: 1;
        transform: scale(1);
    }

    100% {
        opacity: 0;
        transform: scale(1.5);
    }
}

.success-message {
    animation: slideIn 0.5s ease;
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.stats-badge {
    font-size: 1.2rem;
    padding: 0.5rem 1rem;
    background-color: var(--ninja-dark);
    color: white;
    border-radius: 20px;
}

.gesture-indicator {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    position: absolute;
    background: rgba(38, 39, 44, 0.6);
    pointer-events: none;
    transition: all 0.1s ease;
    border: 2px solid white;
}

.ninja-logo {
    transition: transform 0.5s ease;
}

.ninja-logo:hover {
    transform: rotate(360deg);
}