body {
    user-select: none;
    -webkit-user-select: none;
    background: linear-gradient(135deg, #0f0c20, #15102a);
    color: #ffffff;
    font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    margin: 0;
}

.game-wrapper {
    text-align: center;
    background: rgba(255, 255, 255, 0.03);
    padding: 40px;
    border-radius: 24px;
    border: 1px solid rgba(0, 242, 254, 0.2);
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.4);
    backdrop-filter: blur(10px);
    width: 340px;
}

header h1 {
    margin: 0 0 5px 0;
    font-size: 28px;
    letter-spacing: 1px;
    color: #00f2fe;
    text-shadow: 0 0 10px rgba(0, 242, 254, 0.4);
}

header p {
    margin: 0;
    font-size: 14px;
    color: #a0a5c0;
}

.counter-box {
    margin: 30px 0;
}

#scoreDisplay {
    display: block;
    font-size: 48px;
    font-weight: 800;
    color: #4facfe;
    text-shadow: 0 0 15px rgba(79, 172, 254, 0.5);
}

.label {
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: #707595;
}

.main-crystal {
    font-size: 90px;
    cursor: pointer;
    user-select: none;
    -webkit-tap-highlight-color: transparent;
    transition: transform 0.05s ease;
    margin: 20px 0 40px 0;
    display: inline-block;
}

.main-crystal:active {
    transform: scale(0.9); /* Makes the crystal pop down on click click feedback */
}

.shop-box h2 {
    font-size: 18px;
    margin-bottom: 15px;
    color: #ff0844;
}

.shop-btn {
    width: 100%;
    padding: 14px;
    font-size: 14px;
    font-weight: 600;
    background: #1e1b3a;
    border: 1px solid #4facfe;
    color: white;
    border-radius: 12px;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: all 0.2s ease;
}

.shop-btn:hover {
    background: #25224a;
    box-shadow: 0 0 10px rgba(79, 172, 254, 0.2);
}

.shop-btn:disabled {
    border-color: #3e3b5a;
    background: #151328;
    color: #555975;
    cursor: not-allowed;
}

.cost-badge {
    background: #ff0844;
    padding: 4px 10px;
    border-radius: 6px;
    font-size: 12px;
}

.shop-btn:disabled .cost-badge {
    background: #3e3b5a;
}